diff options
| author | Martin Owens <doctormo@gmail.com> | 2014-09-14 06:27:21 +0000 |
|---|---|---|
| committer | Martin Owens <doctormo@gmail.com> | 2014-09-14 06:27:21 +0000 |
| commit | 9d32539b23031c0e0d1a24c083fc609975a459e2 (patch) | |
| tree | e49d90232f01941bc49fbece3ff715790830649b /src/live_effects | |
| parent | add radius support to fillet-chamfer, bugfixes (diff) | |
| parent | Update to experimental r13543 (diff) | |
| download | inkscape-9d32539b23031c0e0d1a24c083fc609975a459e2.tar.gz inkscape-9d32539b23031c0e0d1a24c083fc609975a459e2.zip | |
Merge in ponyscape features by Theo and worked on my LiamW
(bzr r13341.1.204)
Diffstat (limited to 'src/live_effects')
36 files changed, 3885 insertions, 39 deletions
diff --git a/src/live_effects/CMakeLists.txt b/src/live_effects/CMakeLists.txt index d126aca9f..30c2b2f41 100644 --- a/src/live_effects/CMakeLists.txt +++ b/src/live_effects/CMakeLists.txt @@ -2,8 +2,10 @@ set(live_effects_SRC effect.cpp lpe-angle_bisector.cpp + lpe-attach-path.cpp lpe-bendpath.cpp lpe-boolops.cpp + lpe-bounding-box.cpp lpe-circle_3pts.cpp lpe-circle_with_radius.cpp lpe-clone-original.cpp @@ -11,9 +13,12 @@ set(live_effects_SRC lpe-copy_rotate.cpp lpe-curvestitch.cpp lpe-dynastroke.cpp + lpe-ellipse-5pts.cpp lpe-envelope.cpp lpe-envelope-perspective.cpp lpe-extrude.cpp + lpe-fill-between-many.cpp + lpe-fill-between-strokes.cpp lpe-fillet-chamfer.cpp lpe-gears.cpp lpe-interpolate.cpp @@ -55,11 +60,13 @@ set(live_effects_SRC parameter/parameter.cpp parameter/path.cpp parameter/originalpath.cpp + parameter/originalpatharray.cpp parameter/path-reference.cpp parameter/point.cpp parameter/powerstrokepointarray.cpp parameter/random.cpp parameter/text.cpp + paramter/transformedpoint.cpp parameter/togglebutton.cpp parameter/unit.cpp parameter/vector.cpp @@ -70,8 +77,10 @@ set(live_effects_SRC effect-enum.h effect.h lpe-angle_bisector.h + lpe-attach-path.h lpe-bendpath.h lpe-boolops.h + lpe-bounding-box.h lpe-circle_3pts.h lpe-circle_with_radius.h lpe-clone-original.h @@ -79,8 +88,11 @@ set(live_effects_SRC lpe-copy_rotate.h lpe-curvestitch.h lpe-dynastroke.h + lpe-ellipse-5pts.h lpe-envelope.h lpe-extrude.h + lpe-fill-between-many.h + lpe-fill-between-strokes.h lpe-fillet-chamfer.h lpe-gears.h lpe-interpolate.h @@ -125,6 +137,7 @@ set(live_effects_SRC parameter/path-reference.h parameter/path.h parameter/originalpath.h + parameter/originalpatharray.h parameter/point.h parameter/powerstrokepointarray.h parameter/random.h diff --git a/src/live_effects/Makefile_insert b/src/live_effects/Makefile_insert index 1b8f587e1..f18dcdef0 100644 --- a/src/live_effects/Makefile_insert +++ b/src/live_effects/Makefile_insert @@ -97,5 +97,21 @@ ink_common_sources += \ live_effects/lpe-path_length.h \ live_effects/lpe-line_segment.cpp \ live_effects/lpe-line_segment.h \ + live_effects/lpe-bounding-box.cpp \ + live_effects/lpe-bounding-box.h \ + live_effects/lpe-attach-path.cpp \ + live_effects/lpe-attach-path.h \ + live_effects/lpe-fill-between-strokes.cpp \ + live_effects/lpe-fill-between-strokes.h \ + live_effects/lpe-fill-between-many.cpp \ + live_effects/lpe-fill-between-many.h \ + live_effects/lpe-ellipse_5pts.cpp \ + live_effects/lpe-ellipse_5pts.h \ + live_effects/pathoutlineprovider.cpp \ + live_effects/pathoutlineprovider.h \ + live_effects/lpe-jointype.cpp \ + live_effects/lpe-jointype.h \ + live_effects/lpe-taperstroke.cpp \ + live_effects/lpe-taperstroke.h \ live_effects/lpe-envelope-perspective.cpp \ live_effects/lpe-envelope-perspective.h diff --git a/src/live_effects/effect-enum.h b/src/live_effects/effect-enum.h index 30dbf4092..c53f1a5b9 100644 --- a/src/live_effects/effect-enum.h +++ b/src/live_effects/effect-enum.h @@ -56,6 +56,13 @@ enum EffectType { EXTRUDE, POWERSTROKE, CLONE_ORIGINAL, + ATTACH_PATH, + FILL_BETWEEN_STROKES, + FILL_BETWEEN_MANY, + ELLIPSE_5PTS, + BOUNDING_BOX, + JOIN_TYPE, + TAPER_STROKE, ENVELOPE_PERSPECTIVE, FILLET_CHAMFER, INVALID_LPE // This must be last (I made it such that it is not needed anymore I think..., Don't trust on it being last. - johan) diff --git a/src/live_effects/effect.cpp b/src/live_effects/effect.cpp index 540eb99d4..895408707 100644 --- a/src/live_effects/effect.cpp +++ b/src/live_effects/effect.cpp @@ -5,6 +5,8 @@ * Released under GNU GPL, read the file 'COPYING' for more information */ +//#define LPE_ENABLE_TEST_EFFECTS //uncomment for toy effects + #ifdef HAVE_CONFIG_H # include "config.h" #endif @@ -19,7 +21,6 @@ #include "live_effects/lpe-rough-hatches.h" #include "live_effects/lpe-dynastroke.h" #include "live_effects/lpe-test-doEffect-stack.h" -#include "live_effects/lpe-bspline.h" #include "live_effects/lpe-gears.h" #include "live_effects/lpe-curvestitch.h" #include "live_effects/lpe-circle_with_radius.h" @@ -51,6 +52,14 @@ #include "live_effects/lpe-extrude.h" #include "live_effects/lpe-powerstroke.h" #include "live_effects/lpe-clone-original.h" +#include "live_effects/lpe-bspline.h" +#include "live_effects/lpe-attach-path.h" +#include "live_effects/lpe-fill-between-strokes.h" +#include "live_effects/lpe-fill-between-many.h" +#include "live_effects/lpe-ellipse_5pts.h" +#include "live_effects/lpe-bounding-box.h" +#include "live_effects/lpe-jointype.h" +#include "live_effects/lpe-taperstroke.h" #include "live_effects/lpe-envelope-perspective.h" #include "live_effects/lpe-fillet-chamfer.h" @@ -132,10 +141,18 @@ const Util::EnumData<EffectType> LPETypeData[] = { {SHOW_HANDLES, N_("Show handles"), "show_handles"}, {ROUGHEN, N_("Roughen"), "roughen"}, {BSPLINE, N_("BSpline"), "bspline"}, - {SIMPLIFY, N_("Simplify"), "simplify"}, - {LATTICE2, N_("Lattice Deformation 2"), "lattice2"}, - // TRANSLATORS: "Envelope Perspective" should be equivalent to "perspective transformation" - {ENVELOPE_PERSPECTIVE, N_("Envelope Perspective"), "envelope-perspective"}, + {JOIN_TYPE, N_("Join type"), "join_type"}, + {TAPER_STROKE, N_("Taper stroke"), "taper_stroke"}, +/* Ponyscape */ + {ATTACH_PATH, N_("Attach path"), "attach_path"}, + {FILL_BETWEEN_STROKES, N_("Fill between strokes"), "fill_between_strokes"}, + {FILL_BETWEEN_MANY, N_("Fill between many"), "fill_between_many"}, + {ELLIPSE_5PTS, N_("Ellipse by 5 points"), "ellipse_5pts"}, + {BOUNDING_BOX, N_("Bounding Box"), "bounding_box"}, +/* 0.91 */ + {SIMPLIFY, N_("Simplify"), "simplify"}, + {LATTICE2, N_("Lattice Deformation 2"), "lattice2"}, + {ENVELOPE_PERSPECTIVE, N_("Envelope-Perspective"), "envelope-perspective"}, {FILLET_CHAMFER, N_("Fillet/Chamfer"), "fillet-chamfer"}, {INTERPOLATE_POINTS, N_("Interpolate points"), "interpolate_points"}, }; @@ -267,6 +284,27 @@ Effect::New(EffectType lpenr, LivePathEffectObject *lpeobj) case CLONE_ORIGINAL: neweffect = static_cast<Effect*> ( new LPECloneOriginal(lpeobj) ); break; + case ATTACH_PATH: + neweffect = static_cast<Effect*> ( new LPEAttachPath(lpeobj) ); + break; + case FILL_BETWEEN_STROKES: + neweffect = static_cast<Effect*> ( new LPEFillBetweenStrokes(lpeobj) ); + break; + case FILL_BETWEEN_MANY: + neweffect = static_cast<Effect*> ( new LPEFillBetweenMany(lpeobj) ); + break; + case ELLIPSE_5PTS: + neweffect = static_cast<Effect*> ( new LPEEllipse5Pts(lpeobj) ); + break; + case BOUNDING_BOX: + neweffect = static_cast<Effect*> ( new LPEBoundingBox(lpeobj) ); + break; + case JOIN_TYPE: + neweffect = static_cast<Effect*> ( new LPEJoinType(lpeobj) ); + break; + case TAPER_STROKE: + neweffect = static_cast<Effect*> ( new LPETaperStroke(lpeobj) ); + break; case SIMPLIFY: neweffect = static_cast<Effect*> ( new LPESimplify(lpeobj) ); break; @@ -286,7 +324,7 @@ Effect::New(EffectType lpenr, LivePathEffectObject *lpeobj) neweffect = static_cast<Effect*> ( new LPEShowHandles(lpeobj) ); break; default: - g_warning("LivePathEffect::Effect::New called with invalid patheffect type (%d)", lpenr); + g_warning("LivePathEffect::Effect::New called with invalid patheffect type (%d)", lpenr); neweffect = NULL; break; } @@ -369,6 +407,33 @@ Effect::doBeforeEffect (SPLPEItem const*/*lpeitem*/) //Do nothing for simple effects } +void Effect::doAfterEffect (SPLPEItem const* lpeitem) +{ +} + +void Effect::doOnRemove (SPLPEItem const* lpeitem) +{ +} + +//secret impl methods (shhhh!) +void Effect::doOnApply_impl(SPLPEItem const* lpeitem) +{ + sp_lpe_item = const_cast<SPLPEItem *>(lpeitem); + /*sp_curve = SP_SHAPE(sp_lpe_item)->getCurve(); + pathvector_before_effect = sp_curve->get_pathvector();*/ + doOnApply(lpeitem); +} + +void Effect::doBeforeEffect_impl(SPLPEItem const* lpeitem) +{ + sp_lpe_item = const_cast<SPLPEItem *>(lpeitem); + //printf("(SPLPEITEM*) %p\n", sp_lpe_item); + sp_curve = SP_SHAPE(sp_lpe_item)->getCurve(); + pathvector_before_effect = sp_curve->get_pathvector(); + + doBeforeEffect(lpeitem); +} + /** * Effects can have a parameter path set before they are applied by accepting a nonzero number of * mouse clicks. This method activates the pen context, which waits for the specified number of diff --git a/src/live_effects/effect.h b/src/live_effects/effect.h index 940770616..a486e8491 100644 --- a/src/live_effects/effect.h +++ b/src/live_effects/effect.h @@ -53,8 +53,16 @@ public: EffectType effectType() const; + //basically, to get this method called before the derived classes, a bit + //of indirection is needed. We first call these methods, then the below. + void doOnApply_impl(SPLPEItem const* lpeitem); + void doBeforeEffect_impl(SPLPEItem const* lpeitem); + virtual void doOnApply (SPLPEItem const* lpeitem); virtual void doBeforeEffect (SPLPEItem const* lpeitem); + + virtual void doAfterEffect (SPLPEItem const* lpeitem); + virtual void doOnRemove (SPLPEItem const* lpeitem); void writeParamsToSVG(); @@ -147,6 +155,9 @@ protected: // instead of normally 'splitting' the path into continuous pwd2 paths and calling doEffect_pwd2 for each. bool concatenate_before_pwd2; + SPLPEItem * sp_lpe_item; // these get stored in doBeforeEffect_impl, and derived classes may do as they please with them. + SPCurve * sp_curve; + std::vector<Geom::Path> pathvector_before_effect; private: bool provides_own_flash_paths; // if true, the standard flash path is suppressed diff --git a/src/live_effects/lpe-attach-path.cpp b/src/live_effects/lpe-attach-path.cpp new file mode 100644 index 000000000..96372892e --- /dev/null +++ b/src/live_effects/lpe-attach-path.cpp @@ -0,0 +1,198 @@ +/* + * Copyright (C) Johan Engelen 2012 <j.b.c.engelen@alumnus.utwente.nl> + * + * Released under GNU GPL, read the file 'COPYING' for more information + */ + +#include <glibmm/i18n.h> +#include <math.h> + +#include "live_effects/lpe-attach-path.h" + +#include "display/curve.h" +#include "sp-item.h" +#include "2geom/path.h" +#include "sp-shape.h" +#include "sp-text.h" +#include "2geom/bezier-curve.h" +#include "2geom/path-sink.h" +#include "parameter/parameter.h" +#include "live_effects/parameter/point.h" +#include "parameter/originalpath.h" +#include "2geom/affine.h" + +namespace Inkscape { +namespace LivePathEffect { + +LPEAttachPath::LPEAttachPath(LivePathEffectObject *lpeobject) : + Effect(lpeobject), + start_path(_("Start path:"), _("Path to attach to the start of this path"), "startpath", &wr, this), + start_path_position(_("Start path position:"), _("Position to attach path start to"), "startposition", &wr, this, 0.0), + start_path_curve_start(_("Start path curve start:"), _("Starting curve"), "startcurvestart", &wr, this, Geom::Point(20,0)/*, true*/), + start_path_curve_end(_("Start path curve end:"), _("Ending curve"), "startcurveend", &wr, this, Geom::Point(20,0)/*, true*/), + end_path(_("End path:"), _("Path to attach to the end of this path"), "endpath", &wr, this), + end_path_position(_("End path position:"), _("Position to attach path end to"), "endposition", &wr, this, 0.0), + end_path_curve_start(_("End path curve start:"), _("Starting curve"), "endcurvestart", &wr, this, Geom::Point(20,0)/*, true*/), + end_path_curve_end(_("End path curve end:"), _("Ending curve"), "endcurveend", &wr, this, Geom::Point(20,0)/*, true*/) +{ + registerParameter( dynamic_cast<Parameter *>(&start_path) ); + registerParameter( dynamic_cast<Parameter *>(&start_path_position) ); + registerParameter( dynamic_cast<Parameter *>(&start_path_curve_start) ); + registerParameter( dynamic_cast<Parameter *>(&start_path_curve_end) ); + + registerParameter( dynamic_cast<Parameter *>(&end_path) ); + registerParameter( dynamic_cast<Parameter *>(&end_path_position) ); + registerParameter( dynamic_cast<Parameter *>(&end_path_curve_start) ); + registerParameter( dynamic_cast<Parameter *>(&end_path_curve_end) ); + + //perceived_path = true; + show_orig_path = true; + curve_start_previous_origin = start_path_curve_end.getOrigin(); + curve_end_previous_origin = end_path_curve_end.getOrigin(); +} + +LPEAttachPath::~LPEAttachPath() +{ + +} + +void LPEAttachPath::resetDefaults(SPItem const * item) +{ + curve_start_previous_origin = start_path_curve_end.getOrigin(); + curve_end_previous_origin = end_path_curve_end.getOrigin(); +} + +void LPEAttachPath::doEffect (SPCurve * curve) +{ + std::vector<Geom::Path> this_pathv = curve->get_pathvector(); + if (sp_lpe_item && !this_pathv.empty()) { + Geom::Path p = Geom::Path(this_pathv.front().initialPoint()); + + bool set_start_end = start_path_curve_end.getOrigin() != curve_start_previous_origin; + bool set_end_end = end_path_curve_end.getOrigin() != curve_end_previous_origin; + + if (start_path.linksToPath()) { + + std::vector<Geom::Path> linked_pathv = start_path.get_pathvector(); + Geom::Affine linkedtransform = start_path.getObject()->getRelativeTransform(sp_lpe_item); + + if ( !linked_pathv.empty() ) + { + Geom::Path transformedpath = linked_pathv.front() * linkedtransform; + start_path_curve_start.setOrigin(this_pathv.front().initialPoint()); + + std::vector<Geom::Point> derivs = this_pathv.front().front().pointAndDerivatives(0, 3); + + for (unsigned deriv_n = 1; deriv_n < derivs.size(); deriv_n++) { + Geom::Coord length = derivs[deriv_n].length(); + if ( ! Geom::are_near(length, 0) ) { + if (set_start_end) { + start_path_position.param_set_value(transformedpath.nearestPoint(start_path_curve_end.getOrigin())); + } + + if (start_path_position > transformedpath.size()) { + start_path_position.param_set_value(transformedpath.size()); + } else if (start_path_position < 0) { + start_path_position.param_set_value(0); + } + const Geom::Curve *c = start_path_position >= transformedpath.size() ? &transformedpath.back() : &transformedpath.at_index((int)start_path_position); + + std::vector<Geom::Point> derivs_2 = c->pointAndDerivatives(start_path_position >= transformedpath.size() ? 1 : (start_path_position - (int)start_path_position), 3); + for (unsigned deriv_n_2 = 1; deriv_n_2 < derivs_2.size(); deriv_n_2++) { + Geom::Coord length_2 = derivs[deriv_n_2].length(); + if ( ! Geom::are_near(length_2, 0) ) { + start_path_curve_end.setOrigin(derivs_2[0]); + curve_start_previous_origin = start_path_curve_end.getOrigin(); + + double startangle = atan2(start_path_curve_start.getVector().y(), start_path_curve_start.getVector().x()); + double endangle = atan2(start_path_curve_end.getVector().y(), start_path_curve_end.getVector().x()); + double startderiv = atan2(derivs[deriv_n].y(), derivs[deriv_n].x()); + double endderiv = atan2(derivs_2[deriv_n_2].y(), derivs_2[deriv_n_2].x()); + Geom::Point pt1 = Geom::Point(start_path_curve_start.getVector().length() * cos(startangle + startderiv), start_path_curve_start.getVector().length() * sin(startangle + startderiv)); + Geom::Point pt2 = Geom::Point(start_path_curve_end.getVector().length() * cos(endangle + endderiv), start_path_curve_end.getVector().length() * sin(endangle + endderiv)); + p = Geom::Path(derivs_2[0]); + p.appendNew<Geom::CubicBezier>(-pt2 + derivs_2[0], -pt1 + this_pathv.front().initialPoint(), this_pathv.front().initialPoint()); + break; + + } + } + break; + } + } + } + } + + p.append(this_pathv.front()); + + if (end_path.linksToPath()) { + + std::vector<Geom::Path> linked_pathv = end_path.get_pathvector(); + Geom::Affine linkedtransform = end_path.getObject()->getRelativeTransform(sp_lpe_item); + + if ( !linked_pathv.empty() ) + { + Geom::Path transformedpath = linked_pathv.front() * linkedtransform; + Geom::Curve * last_seg_reverse = this_pathv.front().back().reverse(); + + end_path_curve_start.setOrigin(last_seg_reverse->initialPoint()); + + std::vector<Geom::Point> derivs = last_seg_reverse->pointAndDerivatives(0, 3); + for (unsigned deriv_n = 1; deriv_n < derivs.size(); deriv_n++) { + Geom::Coord length = derivs[deriv_n].length(); + if ( ! Geom::are_near(length, 0) ) { + if (set_end_end) { + end_path_position.param_set_value(transformedpath.nearestPoint(end_path_curve_end.getOrigin())); + } + + if (end_path_position > transformedpath.size()) { + end_path_position.param_set_value(transformedpath.size()); + } else if (end_path_position < 0) { + end_path_position.param_set_value(0); + } + const Geom::Curve *c = end_path_position >= transformedpath.size() ? &transformedpath.back() : &transformedpath.at_index((int)end_path_position); + + std::vector<Geom::Point> derivs_2 = c->pointAndDerivatives(end_path_position >= transformedpath.size() ? 1 : (end_path_position - (int)end_path_position), 3); + for (unsigned deriv_n_2 = 1; deriv_n_2 < derivs_2.size(); deriv_n_2++) { + Geom::Coord length_2 = derivs[deriv_n_2].length(); + if ( ! Geom::are_near(length_2, 0) ) { + + end_path_curve_end.setOrigin(derivs_2[0]); + curve_end_previous_origin = end_path_curve_end.getOrigin(); + + double startangle = atan2(end_path_curve_start.getVector().y(), end_path_curve_start.getVector().x()); + double endangle = atan2(end_path_curve_end.getVector().y(), end_path_curve_end.getVector().x()); + double startderiv = atan2(derivs[deriv_n].y(), derivs[deriv_n].x()); + double endderiv = atan2(derivs_2[deriv_n_2].y(), derivs_2[deriv_n_2].x()); + Geom::Point pt1 = Geom::Point(end_path_curve_start.getVector().length() * cos(startangle + startderiv), end_path_curve_start.getVector().length() * sin(startangle + startderiv)); + Geom::Point pt2 = Geom::Point(end_path_curve_end.getVector().length() * cos(endangle + endderiv), end_path_curve_end.getVector().length() * sin(endangle + endderiv)); + p.appendNew<Geom::CubicBezier>(-pt1 + this_pathv.front().finalPoint(), -pt2 + derivs_2[0], derivs_2[0]); + + break; + + } + } + break; + } + } + delete last_seg_reverse; + } + } + Geom::PathVector outvector; + outvector.push_back(p); + curve->set_pathvector(outvector); + } +} + +} // namespace LivePathEffect +} /* namespace Inkscape */ + +/* + Local Variables: + mode:c++ + c-file-style:"stroustrup" + c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +)) + indent-tabs-mode:nil + fill-column:99 + End: +*/ +// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4 : diff --git a/src/live_effects/lpe-attach-path.h b/src/live_effects/lpe-attach-path.h new file mode 100644 index 000000000..1d6c590d1 --- /dev/null +++ b/src/live_effects/lpe-attach-path.h @@ -0,0 +1,52 @@ +#ifndef INKSCAPE_LPE_ATTACH_PATH_H +#define INKSCAPE_LPE_ATTACH_PATH_H + +/* + * Inkscape::LPEAttachPath + * + * Copyright (C) Ted Janeczko 2012 <flutterguy317@gmail.com> + * + * Released under GNU GPL, read the file 'COPYING' for more information + */ + +#include "live_effects/effect.h" +#include "live_effects/parameter/parameter.h" +#include "live_effects/parameter/point.h" +#include "live_effects/parameter/originalpath.h" +#include "live_effects/parameter/vector.h" +#include "live_effects/parameter/bool.h" +#include "live_effects/parameter/transformedpoint.h" + +namespace Inkscape { +namespace LivePathEffect { + +class LPEAttachPath : public Effect { +public: + LPEAttachPath(LivePathEffectObject *lpeobject); + virtual ~LPEAttachPath(); + + virtual void doEffect (SPCurve * curve); + virtual void resetDefaults(SPItem const * item); + +private: + LPEAttachPath(const LPEAttachPath&); + LPEAttachPath& operator=(const LPEAttachPath&); + + Geom::Point curve_start_previous_origin; + Geom::Point curve_end_previous_origin; + + OriginalPathParam start_path; + ScalarParam start_path_position; + TransformedPointParam start_path_curve_start; + VectorParam start_path_curve_end; + + OriginalPathParam end_path; + ScalarParam end_path_position; + TransformedPointParam end_path_curve_start; + VectorParam end_path_curve_end; +}; + +}; //namespace LivePathEffect +}; //namespace Inkscape + +#endif diff --git a/src/live_effects/lpe-bounding-box.cpp b/src/live_effects/lpe-bounding-box.cpp new file mode 100644 index 000000000..bafd5e70e --- /dev/null +++ b/src/live_effects/lpe-bounding-box.cpp @@ -0,0 +1,67 @@ +/* + * Copyright (C) Theodore Janeczko 2012 <flutterguy317@gmail.com> + * + * Released under GNU GPL, read the file 'COPYING' for more information + */ + +#include <glibmm/i18n.h> + +#include "live_effects/lpe-bounding-box.h" + +#include "display/curve.h" +#include "sp-item.h" +#include "2geom/path.h" +#include "sp-shape.h" +#include "sp-text.h" +#include "2geom/bezier-curve.h" +#include "lpe-bounding-box.h" + +namespace Inkscape { +namespace LivePathEffect { + +LPEBoundingBox::LPEBoundingBox(LivePathEffectObject *lpeobject) : + Effect(lpeobject), + linked_path(_("Linked path:"), _("Path from which to take the original path data"), "linkedpath", &wr, this), + visual_bounds(_("Visual Bounds"), _("Uses the visual bounding box"), "visualbounds", &wr, this) +{ + registerParameter( dynamic_cast<Parameter *>(&linked_path) ); + registerParameter( dynamic_cast<Parameter *>(&visual_bounds) ); + //perceived_path = true; +} + +LPEBoundingBox::~LPEBoundingBox() +{ + +} + +void LPEBoundingBox::doEffect (SPCurve * curve) +{ + if (curve) { + if ( linked_path.linksToPath() && linked_path.getObject() ) { + SPItem * item = linked_path.getObject(); + Geom::OptRect bbox = visual_bounds.get_value() ? item->visualBounds() : item->geometricBounds(); + Geom::Path p(Geom::Point(bbox->left(), bbox->top())); + p.appendNew<Geom::LineSegment>(Geom::Point(bbox->right(), bbox->top())); + p.appendNew<Geom::LineSegment>(Geom::Point(bbox->right(), bbox->bottom())); + p.appendNew<Geom::LineSegment>(Geom::Point(bbox->left(), bbox->bottom())); + p.appendNew<Geom::LineSegment>(Geom::Point(bbox->left(), bbox->top())); + std::vector<Geom::Path> out; + out.push_back(p); + curve->set_pathvector(out); + } + } +} + +} // namespace LivePathEffect +} /* namespace Inkscape */ + +/* + Local Variables: + mode:c++ + c-file-style:"stroustrup" + c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +)) + indent-tabs-mode:nil + fill-column:99 + End: +*/ +// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4 : diff --git a/src/live_effects/lpe-bounding-box.h b/src/live_effects/lpe-bounding-box.h new file mode 100644 index 000000000..d028a20ac --- /dev/null +++ b/src/live_effects/lpe-bounding-box.h @@ -0,0 +1,37 @@ +#ifndef INKSCAPE_LPE_BOUNDING_BOX_H +#define INKSCAPE_LPE_BOUNDING_BOX_H + +/* + * Inkscape::LPEFillBetweenStrokes + * + * Copyright (C) Theodore Janeczko 2012 <flutterguy317@gmail.com> + * + * Released under GNU GPL, read the file 'COPYING' for more information + */ + +#include "live_effects/effect.h" +#include "live_effects/parameter/originalpath.h" + +namespace Inkscape { +namespace LivePathEffect { + +class LPEBoundingBox : public Effect { +public: + LPEBoundingBox(LivePathEffectObject *lpeobject); + virtual ~LPEBoundingBox(); + + virtual void doEffect (SPCurve * curve); + +private: + OriginalPathParam linked_path; + BoolParam visual_bounds; + +private: + LPEBoundingBox(const LPEBoundingBox&); + LPEBoundingBox& operator=(const LPEBoundingBox&); +}; + +}; //namespace LivePathEffect +}; //namespace Inkscape + +#endif diff --git a/src/live_effects/lpe-ellipse_5pts.cpp b/src/live_effects/lpe-ellipse_5pts.cpp new file mode 100644 index 000000000..b0a5919fe --- /dev/null +++ b/src/live_effects/lpe-ellipse_5pts.cpp @@ -0,0 +1,214 @@ +/** \file + * LPE "Ellipse through 5 points" implementation + */ + +/* + * Authors: + * Theodore Janeczko + * + * Copyright (C) Theodore Janeczko 2012 <flutterguy317@gmail.com> + * + * Released under GNU GPL, read the file 'COPYING' for more information + */ + +#include "live_effects/lpe-ellipse_5pts.h" + +// You might need to include other 2geom files. You can add them here: +#include <glibmm/i18n.h> +#include <2geom/path.h> +#include <2geom/circle.h> +#include <2geom/ellipse.h> +#include <2geom/path-sink.h> +#include "inkscape.h" +#include "desktop.h" +#include "message-stack.h" + +namespace Inkscape { +namespace LivePathEffect { + +LPEEllipse5Pts::LPEEllipse5Pts(LivePathEffectObject *lpeobject) : + Effect(lpeobject) +{ + //perceived_path = true; +} + +LPEEllipse5Pts::~LPEEllipse5Pts() +{ +} + +static double _det3(double (*mat)[3]) +{ + for (int i = 0; i < 2; i++) + { + for (int j = i + 1; j < 3; j++) + { + for (int k = i + 1; k < 3; k++) + { + mat[j][k] = (mat[j][k] * mat[i][i] - mat[j][i] * mat[i][k]); + if (i) mat[j][k] /= mat[i-1][i-1]; + } + } + } + return mat[2][2]; +} +static double _det5(double (*mat)[5]) +{ + for (int i = 0; i < 4; i++) + { + for (int j = i + 1; j < 5; j++) + { + for (int k = i + 1; k < 5; k++) + { + mat[j][k] = (mat[j][k] * mat[i][i] - mat[j][i] * mat[i][k]); + if (i) mat[j][k] /= mat[i-1][i-1]; + } + } + } + return mat[4][4]; +} + +std::vector<Geom::Path> +LPEEllipse5Pts::doEffect_path (std::vector<Geom::Path> const & path_in) +{ + std::vector<Geom::Path> path_out = std::vector<Geom::Path>(); + + if (path_in[0].size() < 4) { + + SP_ACTIVE_DESKTOP->messageStack()->flash(Inkscape::WARNING_MESSAGE, _("Five points required for constructing an ellipse")); + return path_in; + } + // we assume that the path has >= 3 nodes + Geom::Point A = path_in[0].initialPoint(); + Geom::Point B = path_in[0].pointAt(1); + Geom::Point C = path_in[0].pointAt(2); + Geom::Point D = path_in[0].pointAt(3); + Geom::Point E = path_in[0].pointAt(4); + + using namespace Geom; + + double rowmajor_matrix[5][6] = + { + {A.x()*A.x(), A.x()*A.y(), A.y()*A.y(), A.x(), A.y(), 1}, + {B.x()*B.x(), B.x()*B.y(), B.y()*B.y(), B.x(), B.y(), 1}, + {C.x()*C.x(), C.x()*C.y(), C.y()*C.y(), C.x(), C.y(), 1}, + {D.x()*D.x(), D.x()*D.y(), D.y()*D.y(), D.x(), D.y(), 1}, + {E.x()*E.x(), E.x()*E.y(), E.y()*E.y(), E.x(), E.y(), 1} + }; + + double mat_a[5][5] = + { + {rowmajor_matrix[0][1], rowmajor_matrix[1][1], rowmajor_matrix[2][1], rowmajor_matrix[3][1], rowmajor_matrix[4][1]}, + {rowmajor_matrix[0][2], rowmajor_matrix[1][2], rowmajor_matrix[2][2], rowmajor_matrix[3][2], rowmajor_matrix[4][2]}, + {rowmajor_matrix[0][3], rowmajor_matrix[1][3], rowmajor_matrix[2][3], rowmajor_matrix[3][3], rowmajor_matrix[4][3]}, + {rowmajor_matrix[0][4], rowmajor_matrix[1][4], rowmajor_matrix[2][4], rowmajor_matrix[3][4], rowmajor_matrix[4][4]}, + {rowmajor_matrix[0][5], rowmajor_matrix[1][5], rowmajor_matrix[2][5], rowmajor_matrix[3][5], rowmajor_matrix[4][5]} + }; + double mat_b[5][5] = + { + {rowmajor_matrix[0][0], rowmajor_matrix[1][0], rowmajor_matrix[2][0], rowmajor_matrix[3][0], rowmajor_matrix[4][0]}, + {rowmajor_matrix[0][2], rowmajor_matrix[1][2], rowmajor_matrix[2][2], rowmajor_matrix[3][2], rowmajor_matrix[4][2]}, + {rowmajor_matrix[0][3], rowmajor_matrix[1][3], rowmajor_matrix[2][3], rowmajor_matrix[3][3], rowmajor_matrix[4][3]}, + {rowmajor_matrix[0][4], rowmajor_matrix[1][4], rowmajor_matrix[2][4], rowmajor_matrix[3][4], rowmajor_matrix[4][4]}, + {rowmajor_matrix[0][5], rowmajor_matrix[1][5], rowmajor_matrix[2][5], rowmajor_matrix[3][5], rowmajor_matrix[4][5]} + }; + double mat_c[5][5] = + { + {rowmajor_matrix[0][0], rowmajor_matrix[1][0], rowmajor_matrix[2][0], rowmajor_matrix[3][0], rowmajor_matrix[4][0]}, + {rowmajor_matrix[0][1], rowmajor_matrix[1][1], rowmajor_matrix[2][1], rowmajor_matrix[3][1], rowmajor_matrix[4][1]}, + {rowmajor_matrix[0][3], rowmajor_matrix[1][3], rowmajor_matrix[2][3], rowmajor_matrix[3][3], rowmajor_matrix[4][3]}, + {rowmajor_matrix[0][4], rowmajor_matrix[1][4], rowmajor_matrix[2][4], rowmajor_matrix[3][4], rowmajor_matrix[4][4]}, + {rowmajor_matrix[0][5], rowmajor_matrix[1][5], rowmajor_matrix[2][5], rowmajor_matrix[3][5], rowmajor_matrix[4][5]} + }; + double mat_d[5][5] = + { + {rowmajor_matrix[0][0], rowmajor_matrix[1][0], rowmajor_matrix[2][0], rowmajor_matrix[3][0], rowmajor_matrix[4][0]}, + {rowmajor_matrix[0][1], rowmajor_matrix[1][1], rowmajor_matrix[2][1], rowmajor_matrix[3][1], rowmajor_matrix[4][1]}, + {rowmajor_matrix[0][2], rowmajor_matrix[1][2], rowmajor_matrix[2][2], rowmajor_matrix[3][2], rowmajor_matrix[4][2]}, + {rowmajor_matrix[0][4], rowmajor_matrix[1][4], rowmajor_matrix[2][4], rowmajor_matrix[3][4], rowmajor_matrix[4][4]}, + {rowmajor_matrix[0][5], rowmajor_matrix[1][5], rowmajor_matrix[2][5], rowmajor_matrix[3][5], rowmajor_matrix[4][5]} + }; + double mat_e[5][5] = + { + {rowmajor_matrix[0][0], rowmajor_matrix[1][0], rowmajor_matrix[2][0], rowmajor_matrix[3][0], rowmajor_matrix[4][0]}, + {rowmajor_matrix[0][1], rowmajor_matrix[1][1], rowmajor_matrix[2][1], rowmajor_matrix[3][1], rowmajor_matrix[4][1]}, + {rowmajor_matrix[0][2], rowmajor_matrix[1][2], rowmajor_matrix[2][2], rowmajor_matrix[3][2], rowmajor_matrix[4][2]}, + {rowmajor_matrix[0][3], rowmajor_matrix[1][3], rowmajor_matrix[2][3], rowmajor_matrix[3][3], rowmajor_matrix[4][3]}, + {rowmajor_matrix[0][5], rowmajor_matrix[1][5], rowmajor_matrix[2][5], rowmajor_matrix[3][5], rowmajor_matrix[4][5]} + }; + double mat_f[5][5] = + { + {rowmajor_matrix[0][0], rowmajor_matrix[1][0], rowmajor_matrix[2][0], rowmajor_matrix[3][0], rowmajor_matrix[4][0]}, + {rowmajor_matrix[0][1], rowmajor_matrix[1][1], rowmajor_matrix[2][1], rowmajor_matrix[3][1], rowmajor_matrix[4][1]}, + {rowmajor_matrix[0][2], rowmajor_matrix[1][2], rowmajor_matrix[2][2], rowmajor_matrix[3][2], rowmajor_matrix[4][2]}, + {rowmajor_matrix[0][3], rowmajor_matrix[1][3], rowmajor_matrix[2][3], rowmajor_matrix[3][3], rowmajor_matrix[4][3]}, + {rowmajor_matrix[0][4], rowmajor_matrix[1][4], rowmajor_matrix[2][4], rowmajor_matrix[3][4], rowmajor_matrix[4][4]} + }; + + double a1 = _det5(mat_a); + double b1 = -_det5(mat_b); + double c1 = _det5(mat_c); + double d1 = -_det5(mat_d); + double e1 = _det5(mat_e); + double f1 = -_det5(mat_f); + + double mat_check[][3] = + { + {a1, b1/2, d1/2}, + {b1/2, c1, e1/2}, + {d1/2, e1/2, f1} + }; + + if (_det3(mat_check) == 0 || a1*c1 - b1*b1/4 <= 0) { + SP_ACTIVE_DESKTOP->messageStack()->flash(Inkscape::WARNING_MESSAGE, _("No ellipse found for specified points")); + return path_in; + } + + Geom::Ellipse el(a1, b1, c1, d1, e1, f1); + + double s, e; + double x0, y0, x1, y1, x2, y2, x3, y3; + double len; + + // figure out if we have a slice, guarding against rounding errors + + Path p(Geom::Point(cos(0), sin(0))); + + double end = 2 * M_PI; + for (s = 0; s < end; s += M_PI_2) { + e = s + M_PI_2; + if (e > end) + e = end; + len = 4*tan((e - s)/4)/3; + x0 = cos(s); + y0 = sin(s); + x1 = x0 + len * cos(s + M_PI_2); + y1 = y0 + len * sin(s + M_PI_2); + x3 = cos(e); + y3 = sin(e); + x2 = x3 + len * cos(e - M_PI_2); + y2 = y3 + len * sin(e - M_PI_2); + p.appendNew<Geom::CubicBezier>(Geom::Point(x1,y1), Geom::Point(x2,y2), Geom::Point(x3,y3)); + } + + Geom::Affine aff = Geom::Scale(el.ray(Geom::X), el.ray(Geom::Y)) * Geom::Rotate(el.rot_angle()) * Geom::Translate(el.center()); + + path_out.push_back(p * aff); + + return path_out; +} + +/* ######################## */ + +} //namespace LivePathEffect +} /* namespace Inkscape */ + +/* + Local Variables: + mode:c++ + c-file-style:"stroustrup" + c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +)) + indent-tabs-mode:nil + fill-column:99 + End: +*/ +// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4 : diff --git a/src/live_effects/lpe-ellipse_5pts.h b/src/live_effects/lpe-ellipse_5pts.h new file mode 100644 index 000000000..d3b1fccfa --- /dev/null +++ b/src/live_effects/lpe-ellipse_5pts.h @@ -0,0 +1,50 @@ +#ifndef INKSCAPE_LPE_ELLIPSE_5PTS_H +#define INKSCAPE_LPE_ELLIPSE_5PTS_H + +/** \file + * LPE "Ellipse through 5 points" implementation + */ + +/* + * Authors: + * Theodore Janeczko + * + * Copyright (C) Theodore Janeczko 2012 <flutterguy317@gmail.com> + * + * Released under GNU GPL, read the file 'COPYING' for more information + */ + +#include "live_effects/effect.h" +#include "live_effects/parameter/parameter.h" +#include "live_effects/parameter/point.h" + +namespace Inkscape { +namespace LivePathEffect { + +class LPEEllipse5Pts : public Effect { +public: + LPEEllipse5Pts(LivePathEffectObject *lpeobject); + virtual ~LPEEllipse5Pts(); + + virtual std::vector<Geom::Path> doEffect_path (std::vector<Geom::Path> const & path_in); + +private: + LPEEllipse5Pts(const LPEEllipse5Pts&); + LPEEllipse5Pts& operator=(const LPEEllipse5Pts&); +}; + +} //namespace LivePathEffect +} //namespace Inkscape + +#endif + +/* + Local Variables: + mode:c++ + c-file-style:"stroustrup" + c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +)) + indent-tabs-mode:nil + fill-column:99 + End: +*/ +// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4 : diff --git a/src/live_effects/lpe-fill-between-many.cpp b/src/live_effects/lpe-fill-between-many.cpp new file mode 100644 index 000000000..7cf354044 --- /dev/null +++ b/src/live_effects/lpe-fill-between-many.cpp @@ -0,0 +1,78 @@ +/* + * Copyright (C) Theodore Janeczko 2012 <flutterguy317@gmail.com> + * + * Released under GNU GPL, read the file 'COPYING' for more information + */ + +#include <gtkmm/box.h> + +#include "live_effects/lpe-fill-between-many.h" + +#include "display/curve.h" +#include "sp-item.h" +#include "2geom/path.h" +#include "sp-shape.h" +#include "sp-text.h" +#include "2geom/bezier-curve.h" + +#include <glibmm/i18n.h> + +namespace Inkscape { +namespace LivePathEffect { + +LPEFillBetweenMany::LPEFillBetweenMany(LivePathEffectObject *lpeobject) : + Effect(lpeobject), + linked_paths(_("Linked path:"), _("Paths from which to take the original path data"), "linkedpaths", &wr, this) +{ + registerParameter( dynamic_cast<Parameter *>(&linked_paths) ); + //perceived_path = true; +} + +LPEFillBetweenMany::~LPEFillBetweenMany() +{ + +} + +void LPEFillBetweenMany::doEffect (SPCurve * curve) +{ + std::vector<Geom::Path> res_pathv; + SPItem * firstObj = NULL; + for (std::vector<PathAndDirection*>::iterator iter = linked_paths._vector.begin(); iter != linked_paths._vector.end(); iter++) { + SPObject *obj; + if ((*iter)->ref.isAttached() && (obj = (*iter)->ref.getObject()) && SP_IS_ITEM(obj) && !(*iter)->_pathvector.empty()) { + Geom::Path linked_path; + if ((*iter)->reversed) { + linked_path = (*iter)->_pathvector.front().reverse(); + } else { + linked_path = (*iter)->_pathvector.front(); + } + + if (!res_pathv.empty()) { + linked_path = linked_path * SP_ITEM(obj)->getRelativeTransform(firstObj); + res_pathv.front().appendNew<Geom::LineSegment>(linked_path.initialPoint()); + res_pathv.front().append(linked_path); + } else { + firstObj = SP_ITEM(obj); + res_pathv.push_back(linked_path); + } + } + } + if (!res_pathv.empty()) { + res_pathv.front().close(); + } + curve->set_pathvector(res_pathv); +} + +} // namespace LivePathEffect +} /* namespace Inkscape */ + +/* + Local Variables: + mode:c++ + c-file-style:"stroustrup" + c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +)) + indent-tabs-mode:nil + fill-column:99 + End: +*/ +// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4 : diff --git a/src/live_effects/lpe-fill-between-many.h b/src/live_effects/lpe-fill-between-many.h new file mode 100644 index 000000000..99ee8b15f --- /dev/null +++ b/src/live_effects/lpe-fill-between-many.h @@ -0,0 +1,36 @@ +#ifndef INKSCAPE_LPE_FILL_BETWEEN_MANY_H +#define INKSCAPE_LPE_FILL_BETWEEN_MANY_H + +/* + * Inkscape::LPEFillBetweenStrokes + * + * Copyright (C) Theodore Janeczko 2012 <flutterguy317@gmail.com> + * + * Released under GNU GPL, read the file 'COPYING' for more information + */ + +#include "live_effects/effect.h" +#include "live_effects/parameter/originalpatharray.h" + +namespace Inkscape { +namespace LivePathEffect { + +class LPEFillBetweenMany : public Effect { +public: + LPEFillBetweenMany(LivePathEffectObject *lpeobject); + virtual ~LPEFillBetweenMany(); + + virtual void doEffect (SPCurve * curve); + +private: + OriginalPathArrayParam linked_paths; + +private: + LPEFillBetweenMany(const LPEFillBetweenMany&); + LPEFillBetweenMany& operator=(const LPEFillBetweenMany&); +}; + +}; //namespace LivePathEffect +}; //namespace Inkscape + +#endif diff --git a/src/live_effects/lpe-fill-between-strokes.cpp b/src/live_effects/lpe-fill-between-strokes.cpp new file mode 100644 index 000000000..e72979ed0 --- /dev/null +++ b/src/live_effects/lpe-fill-between-strokes.cpp @@ -0,0 +1,116 @@ +/* + * Copyright (C) Theodore Janeczko 2012 <flutterguy317@gmail.com> + * + * Released under GNU GPL, read the file 'COPYING' for more information + */ + +#include <glibmm/i18n.h> + +#include "live_effects/lpe-fill-between-strokes.h" + +#include "display/curve.h" +#include "sp-item.h" +#include "2geom/path.h" +#include "sp-shape.h" +#include "sp-text.h" +#include "2geom/bezier-curve.h" + +namespace Inkscape { +namespace LivePathEffect { + +LPEFillBetweenStrokes::LPEFillBetweenStrokes(LivePathEffectObject *lpeobject) : + Effect(lpeobject), + linked_path(_("Linked path:"), _("Path from which to take the original path data"), "linkedpath", &wr, this), + second_path(_("Second path:"), _("Second path from which to take the original path data"), "secondpath", &wr, this), + reverse_second(_("Reverse Second"), _("Reverses the second path order"), "reversesecond", &wr, this) +{ + registerParameter( dynamic_cast<Parameter *>(&linked_path) ); + registerParameter( dynamic_cast<Parameter *>(&second_path) ); + registerParameter( dynamic_cast<Parameter *>(&reverse_second) ); + //perceived_path = true; +} + +LPEFillBetweenStrokes::~LPEFillBetweenStrokes() +{ + +} + +void LPEFillBetweenStrokes::doEffect (SPCurve * curve) +{ + if (curve) { + if ( linked_path.linksToPath() && second_path.linksToPath() && linked_path.getObject() && second_path.getObject() ) { + std::vector<Geom::Path> linked_pathv = linked_path.get_pathvector(); + std::vector<Geom::Path> second_pathv = second_path.get_pathvector(); + std::vector<Geom::Path> result_linked_pathv; + std::vector<Geom::Path> result_second_pathv; + Geom::Affine second_transform = second_path.getObject()->getRelativeTransform(linked_path.getObject()); + + for (std::vector<Geom::Path>::iterator iter = linked_pathv.begin(); iter != linked_pathv.end(); ++iter) + { + result_linked_pathv.push_back((*iter)); + } + for (std::vector<Geom::Path>::iterator iter = second_pathv.begin(); iter != second_pathv.end(); ++iter) + { + result_second_pathv.push_back((*iter) * second_transform); + } + + if ( !result_linked_pathv.empty() && !result_second_pathv.empty() && !result_linked_pathv.front().closed() ) { + if (reverse_second.get_value()) + { + result_linked_pathv.front().appendNew<Geom::LineSegment>(result_second_pathv.front().finalPoint()); + result_linked_pathv.front().append(result_second_pathv.front().reverse()); + } + else + { + result_linked_pathv.front().appendNew<Geom::LineSegment>(result_second_pathv.front().initialPoint()); + result_linked_pathv.front().append(result_second_pathv.front()); + } + curve->set_pathvector(result_linked_pathv); + } + else if ( !result_linked_pathv.empty() ) { + curve->set_pathvector(result_linked_pathv); + } + else if ( !result_second_pathv.empty() ) { + curve->set_pathvector(result_second_pathv); + } + } + else if ( linked_path.linksToPath() && linked_path.getObject() ) { + std::vector<Geom::Path> linked_pathv = linked_path.get_pathvector(); + std::vector<Geom::Path> result_pathv; + + for (std::vector<Geom::Path>::iterator iter = linked_pathv.begin(); iter != linked_pathv.end(); ++iter) + { + result_pathv.push_back((*iter)); + } + if ( !result_pathv.empty() ) { + curve->set_pathvector(result_pathv); + } + } + else if ( second_path.linksToPath() && second_path.getObject() ) { + std::vector<Geom::Path> second_pathv = second_path.get_pathvector(); + std::vector<Geom::Path> result_pathv; + + for (std::vector<Geom::Path>::iterator iter = second_pathv.begin(); iter != second_pathv.end(); ++iter) + { + result_pathv.push_back((*iter)); + } + if ( !result_pathv.empty() ) { + curve->set_pathvector(result_pathv); + } + } + } +} + +} // namespace LivePathEffect +} /* namespace Inkscape */ + +/* + Local Variables: + mode:c++ + c-file-style:"stroustrup" + c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +)) + indent-tabs-mode:nil + fill-column:99 + End: +*/ +// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4 : diff --git a/src/live_effects/lpe-fill-between-strokes.h b/src/live_effects/lpe-fill-between-strokes.h new file mode 100644 index 000000000..ec57b1852 --- /dev/null +++ b/src/live_effects/lpe-fill-between-strokes.h @@ -0,0 +1,38 @@ +#ifndef INKSCAPE_LPE_FILL_BETWEEN_STROKES_H +#define INKSCAPE_LPE_FILL_BETWEEN_STROKES_H + +/* + * Inkscape::LPEFillBetweenStrokes + * + * Copyright (C) Theodore Janeczko 2012 <flutterguy317@gmail.com> + * + * Released under GNU GPL, read the file 'COPYING' for more information + */ + +#include "live_effects/effect.h" +#include "live_effects/parameter/originalpath.h" + +namespace Inkscape { +namespace LivePathEffect { + +class LPEFillBetweenStrokes : public Effect { +public: + LPEFillBetweenStrokes(LivePathEffectObject *lpeobject); + virtual ~LPEFillBetweenStrokes(); + + virtual void doEffect (SPCurve * curve); + +private: + OriginalPathParam linked_path; + OriginalPathParam second_path; + BoolParam reverse_second; + +private: + LPEFillBetweenStrokes(const LPEFillBetweenStrokes&); + LPEFillBetweenStrokes& operator=(const LPEFillBetweenStrokes&); +}; + +}; //namespace LivePathEffect +}; //namespace Inkscape + +#endif diff --git a/src/live_effects/lpe-jointype.cpp b/src/live_effects/lpe-jointype.cpp new file mode 100644 index 000000000..b0a6e845b --- /dev/null +++ b/src/live_effects/lpe-jointype.cpp @@ -0,0 +1,184 @@ +/** \file + * LPE "Join Type" implementation + */ + /* Authors: + * + * Liam P White + * + * Copyright (C) 2014 Authors + * + * Released under GNU GPL v2, read the file 'COPYING' for more information + */ + +#include <math.h> + +#include "live_effects/parameter/enum.h" +#include "live_effects/pathoutlineprovider.h" + +#include "sp-shape.h" +#include "style.h" +#include "xml/repr.h" +#include "sp-paint-server.h" +#include "svg/svg-color.h" +#include "desktop-style.h" +#include "svg/css-ostringstream.h" +#include "display/curve.h" + +#include <2geom/path.h> +#include <2geom/svg-elliptical-arc.h> + +#include "lpe-jointype.h" + +namespace Inkscape { +namespace LivePathEffect { + +static const Util::EnumData<unsigned> JoinTypeData[] = { + {LINEJOIN_STRAIGHT, N_("Beveled"), "bevel"}, + {LINEJOIN_ROUND, N_("Rounded"), "round"}, + {LINEJOIN_POINTY, N_("Miter"), "miter"}, + {LINEJOIN_REFLECTED, N_("Reflected"), "extrapolated"}, + {LINEJOIN_EXTRAPOLATED, N_("Extrapolated arc"), "extrp_arc"} +}; + +static const Util::EnumData<unsigned> CapTypeData[] = { + {BUTT_STRAIGHT, N_("Butt"), "butt"}, + {BUTT_ROUND, N_("Rounded"), "round"}, + {BUTT_SQUARE, N_("Square"), "square"}, + {BUTT_POINTY, N_("Peak"), "peak"}, + {BUTT_LEANED, N_("Leaned"), "leaned"} +}; + +static const Util::EnumDataConverter<unsigned> CapTypeConverter(CapTypeData, sizeof(CapTypeData)/sizeof(*CapTypeData)); +static const Util::EnumDataConverter<unsigned> JoinTypeConverter(JoinTypeData, sizeof(JoinTypeData)/sizeof(*JoinTypeData)); + +LPEJoinType::LPEJoinType(LivePathEffectObject *lpeobject) : + Effect(lpeobject), + line_width(_("Line width"), _("Thickness of the stroke"), "line_width", &wr, this, 1.), + linecap_type(_("Line cap"), _("The end shape of the stroke"), "linecap_type", CapTypeConverter, &wr, this, butt_straight), + linejoin_type(_("Join:"), _("Determines the shape of the path's corners"), "linejoin_type", JoinTypeConverter, &wr, this, LINEJOIN_EXTRAPOLATED), + start_lean(_("Start path lean"), _("Start path lean"), "start_lean", &wr, this, 0.), + end_lean(_("End path lean"), _("End path lean"), "end_lean", &wr, this, 0.), + miter_limit(_("Miter limit:"), _("Maximum length of the miter join (in units of stroke width)"), "miter_limit", &wr, this, 100.), + attempt_force_join(_("Force miter"), _("Overrides the miter limit and forces a join."), "attempt_force_join", &wr, this, true) +{ + show_orig_path = true; + registerParameter( dynamic_cast<Parameter *>(&linecap_type) ); + registerParameter( dynamic_cast<Parameter *>(&line_width) ); + registerParameter( dynamic_cast<Parameter *>(&linejoin_type) ); + registerParameter( dynamic_cast<Parameter *>(&start_lean) ); + registerParameter( dynamic_cast<Parameter *>(&end_lean) ); + registerParameter( dynamic_cast<Parameter *>(&miter_limit) ); + registerParameter( dynamic_cast<Parameter *>(&attempt_force_join) ); + was_initialized = false; + start_lean.param_set_range(-1,1); + start_lean.param_set_increments(0.1, 0.1); + start_lean.param_set_digits(4); + end_lean.param_set_range(-1,1); + end_lean.param_set_increments(0.1, 0.1); + end_lean.param_set_digits(4); +} + +LPEJoinType::~LPEJoinType() +{ +} + +//from LPEPowerStroke -- sets fill if stroke color because we will +//be converting to a fill to make the new join. + +void LPEJoinType::doOnApply(SPLPEItem const* lpeitem) +{ + if (SP_IS_SHAPE(lpeitem)) { + SPLPEItem* item = const_cast<SPLPEItem*>(lpeitem); + double width = (lpeitem && lpeitem->style) ? lpeitem->style->stroke_width.computed : 1.; + + SPCSSAttr *css = sp_repr_css_attr_new (); + if (true) { + if (lpeitem->style->stroke.isPaintserver()) { + SPPaintServer * server = lpeitem->style->getStrokePaintServer(); + if (server) { + Glib::ustring str; + str += "url(#"; + str += server->getId(); + str += ")"; + sp_repr_css_set_property (css, "fill", str.c_str()); + } + } else if (lpeitem->style->stroke.isColor()) { + gchar c[64]; + sp_svg_write_color (c, sizeof(c), lpeitem->style->stroke.value.color.toRGBA32(SP_SCALE24_TO_FLOAT(lpeitem->style->stroke_opacity.value))); + sp_repr_css_set_property (css, "fill", c); + } else { + sp_repr_css_set_property (css, "fill", "none"); + } + } else { + sp_repr_css_unset_property (css, "fill"); + } + + sp_repr_css_set_property(css, "stroke", "none"); + + sp_desktop_apply_css_recursive(item, css, true); + sp_repr_css_attr_unref (css); + if (!was_initialized) + { + was_initialized = true; + line_width.param_set_value(width); + } + } else { + g_warning("LPE Join Type can only be applied to paths (not groups)."); + } +} + +//from LPEPowerStroke -- sets stroke color from existing fill color + +void LPEJoinType::doOnRemove(SPLPEItem const* lpeitem) +{ + + if (SP_IS_SHAPE(lpeitem)) { + SPLPEItem *item = const_cast<SPLPEItem*>(lpeitem); + + SPCSSAttr *css = sp_repr_css_attr_new (); + if (true) { + if (lpeitem->style->fill.isPaintserver()) { + SPPaintServer * server = lpeitem->style->getFillPaintServer(); + if (server) { + Glib::ustring str; + str += "url(#"; + str += server->getId(); + str += ")"; + sp_repr_css_set_property (css, "stroke", str.c_str()); + } + } else if (lpeitem->style->fill.isColor()) { + gchar c[64]; + sp_svg_write_color (c, sizeof(c), lpeitem->style->stroke.value.color.toRGBA32(SP_SCALE24_TO_FLOAT(lpeitem->style->stroke_opacity.value))); + sp_repr_css_set_property (css, "stroke", c); + } else { + sp_repr_css_set_property (css, "stroke", "none"); + } + } else { + sp_repr_css_unset_property (css, "stroke"); + } + + Inkscape::CSSOStringStream os; + os << fabs(line_width); + sp_repr_css_set_property (css, "stroke-width", os.str().c_str()); + + sp_repr_css_set_property(css, "fill", "none"); + + sp_desktop_apply_css_recursive(item, css, true); + sp_repr_css_attr_unref (css); + item->updateRepr(); + } +} + +//NOTE: I originally had all the outliner functions defined in here, but they were actually useful +//enough for other LPEs so I moved them all into pathoutlineprovider.cpp. The code here is just a +//wrapper around it. +std::vector<Geom::Path> LPEJoinType::doEffect_path(std::vector<Geom::Path> const & path_in) +{ + return Outline::PathVectorOutline(path_in, line_width, static_cast<ButtTypeMod>(linecap_type.get_value()), + static_cast<LineJoinType>(linejoin_type.get_value()), + (attempt_force_join ? std::numeric_limits<double>::max() : miter_limit), + start_lean/2 ,end_lean/2); +} + +} //namespace LivePathEffect +} //namespace Inkscape diff --git a/src/live_effects/lpe-jointype.h b/src/live_effects/lpe-jointype.h new file mode 100644 index 000000000..7ebce1c7e --- /dev/null +++ b/src/live_effects/lpe-jointype.h @@ -0,0 +1,45 @@ +/* Authors:
+ * Liam P White
+ *
+ * Copyright (C) 2014 Authors
+ *
+ * Released under GNU GPL v2, read the file COPYING for more information
+ */
+#ifndef INKSCAPE_LPE_JOINTYPE_H
+#define INKSCAPE_LPE_JOINTYPE_H
+
+#include "live_effects/effect.h"
+#include "live_effects/parameter/parameter.h"
+#include "live_effects/parameter/point.h"
+#include "live_effects/parameter/enum.h"
+
+namespace Inkscape {
+namespace LivePathEffect {
+
+class LPEJoinType : public Effect {
+public:
+ LPEJoinType(LivePathEffectObject *lpeobject);
+ virtual ~LPEJoinType();
+
+ virtual void doOnApply(SPLPEItem const* lpeitem);
+ virtual void doOnRemove(SPLPEItem const* lpeitem);
+ virtual std::vector <Geom::Path> doEffect_path (std::vector<Geom::Path> const & path_in);
+
+private:
+ LPEJoinType(const LPEJoinType&);
+ LPEJoinType& operator=(const LPEJoinType&);
+
+ ScalarParam line_width;
+ EnumParam<unsigned> linecap_type;
+ EnumParam<unsigned> linejoin_type;
+ ScalarParam start_lean;
+ ScalarParam end_lean;
+ ScalarParam miter_limit;
+ BoolParam attempt_force_join;
+ bool was_initialized;
+};
+
+} //namespace LivePathEffect
+} //namespace Inkscape
+
+#endif
diff --git a/src/live_effects/lpe-knot.cpp b/src/live_effects/lpe-knot.cpp index 938287c22..3876aa24b 100644 --- a/src/live_effects/lpe-knot.cpp +++ b/src/live_effects/lpe-knot.cpp @@ -537,6 +537,10 @@ LPEKnot::doBeforeEffect (SPLPEItem const* lpeitem) { using namespace Geom; original_bbox(lpeitem); + + if (SP_IS_PATH(lpeitem)) { + supplied_path = SP_PATH(lpeitem)->getCurve()->get_pathvector(); + } gpaths.clear(); gstroke_widths.clear(); diff --git a/src/live_effects/lpe-knot.h b/src/live_effects/lpe-knot.h index f926bf085..080f32de2 100644 --- a/src/live_effects/lpe-knot.h +++ b/src/live_effects/lpe-knot.h @@ -64,7 +64,8 @@ public: void addKnotHolderEntities(KnotHolder *knotholder, SPDesktop *desktop, SPItem *item); protected: - virtual void addCanvasIndicators(SPLPEItem const *lpeitem, std::vector<Geom::PathVector> &hp_vec); + virtual void addCanvasIndicators(SPLPEItem const *lpeitem, std::vector<Geom::PathVector> &hp_vec); + std::vector<Geom::Path> supplied_path; //for knotholder business private: void updateSwitcher(); diff --git a/src/live_effects/lpe-powerstroke-interpolators.h b/src/live_effects/lpe-powerstroke-interpolators.h index 986bd3544..3cde0b4b3 100644 --- a/src/live_effects/lpe-powerstroke-interpolators.h +++ b/src/live_effects/lpe-powerstroke-interpolators.h @@ -28,6 +28,7 @@ enum InterpolatorType { INTERP_CUBICBEZIER, INTERP_CUBICBEZIER_JOHAN, INTERP_SPIRO, + INTERP_CUBICBEZIER_SMOOTH, INTERP_CENTRIPETAL_CATMULLROM }; @@ -134,6 +135,43 @@ private: CubicBezierJohan& operator=(const CubicBezierJohan&); }; +/// @todo invent name for this class +class CubicBezierSmooth : public Interpolator { +public: + CubicBezierSmooth(double beta = 0.2) { + _beta = beta; + }; + virtual ~CubicBezierSmooth() {}; + + virtual Path interpolateToPath(std::vector<Point> const &points) const { + Path fit; + fit.start(points.at(0)); + unsigned int num_points = points.size(); + for (unsigned int i = 1; i < num_points; ++i) { + Point p0 = points.at(i-1); + Point p1 = points.at(i); + Point dx = Point(p1[X] - p0[X], 0); + if (i == 1) { + fit.appendNew<CubicBezier>(p0, p1-0.75*dx, p1); + } else if (i == points.size() - 1) { + fit.appendNew<CubicBezier>(p0+0.75*dx, p1, p1); + } else { + fit.appendNew<CubicBezier>(p0+_beta*dx, p1-_beta*dx, p1); + } + } + return fit; + }; + + void setBeta(double beta) { + _beta = beta; + } + + double _beta; + +private: + CubicBezierSmooth(const CubicBezierSmooth&); + CubicBezierSmooth& operator=(const CubicBezierSmooth&); +}; class SpiroInterpolator : public Interpolator { public: @@ -261,6 +299,8 @@ Interpolator::create(InterpolatorType type) { return new Geom::Interpolate::CubicBezierJohan(); case INTERP_SPIRO: return new Geom::Interpolate::SpiroInterpolator(); + case INTERP_CUBICBEZIER_SMOOTH: + return new Geom::Interpolate::CubicBezierSmooth(); case INTERP_CENTRIPETAL_CATMULLROM: return new Geom::Interpolate::CentripetalCatmullRomInterpolator(); default: diff --git a/src/live_effects/lpe-powerstroke.cpp b/src/live_effects/lpe-powerstroke.cpp index 5bfe88ed1..b1951d978 100644 --- a/src/live_effects/lpe-powerstroke.cpp +++ b/src/live_effects/lpe-powerstroke.cpp @@ -15,6 +15,11 @@ #include "sp-shape.h" #include "style.h" +#include "xml/repr.h" +#include "sp-paint-server.h" +#include "svg/svg-color.h" +#include "desktop-style.h" +#include "svg/css-ostringstream.h" #include "display/curve.h" #include <2geom/path.h> @@ -185,6 +190,7 @@ namespace Inkscape { namespace LivePathEffect { static const Util::EnumData<unsigned> InterpolatorTypeData[] = { + {Geom::Interpolate::INTERP_CUBICBEZIER_SMOOTH, N_("CubicBezierSmooth"), "CubicBezierSmooth"}, {Geom::Interpolate::INTERP_LINEAR , N_("Linear"), "Linear"}, {Geom::Interpolate::INTERP_CUBICBEZIER , N_("CubicBezierFit"), "CubicBezierFit"}, {Geom::Interpolate::INTERP_CUBICBEZIER_JOHAN , N_("CubicBezierJohan"), "CubicBezierJohan"}, @@ -223,9 +229,7 @@ static const Util::EnumData<unsigned> LineJoinTypeData[] = { {LINEJOIN_EXTRP_MITER, N_("Extrapolated"), "extrapolated"}, {LINEJOIN_MITER, N_("Miter"), "miter"}, {LINEJOIN_SPIRO, N_("Spiro"), "spiro"}, -#ifdef LPE_ENABLE_TEST_EFFECTS {LINEJOIN_EXTRP_MITER_ARC, N_("Extrapolated arc"), "extrp_arc"}, -#endif }; static const Util::EnumDataConverter<unsigned> LineJoinTypeConverter(LineJoinTypeData, sizeof(LineJoinTypeData)/sizeof(*LineJoinTypeData)); @@ -233,12 +237,12 @@ LPEPowerStroke::LPEPowerStroke(LivePathEffectObject *lpeobject) : Effect(lpeobject), offset_points(_("Offset points"), _("Offset points"), "offset_points", &wr, this), sort_points(_("Sort points"), _("Sort offset points according to their time value along the curve"), "sort_points", &wr, this, true), - interpolator_type(_("Interpolator type:"), _("Determines which kind of interpolator will be used to interpolate between stroke width along the path"), "interpolator_type", InterpolatorTypeConverter, &wr, this, Geom::Interpolate::INTERP_CUBICBEZIER_JOHAN), + interpolator_type(_("Interpolator type:"), _("Determines which kind of interpolator will be used to interpolate between stroke width along the path"), "interpolator_type", InterpolatorTypeConverter, &wr, this, Geom::Interpolate::INTERP_CUBICBEZIER), interpolator_beta(_("Smoothness:"), _("Sets the smoothness for the CubicBezierJohan interpolator; 0 = linear interpolation, 1 = smooth"), "interpolator_beta", &wr, this, 0.2), - start_linecap_type(_("Start cap:"), _("Determines the shape of the path's start"), "start_linecap_type", LineCapTypeConverter, &wr, this, LINECAP_ROUND), - linejoin_type(_("Join:"), _("Determines the shape of the path's corners"), "linejoin_type", LineJoinTypeConverter, &wr, this, LINEJOIN_ROUND), + start_linecap_type(_("Start cap:"), _("Determines the shape of the path's start"), "start_linecap_type", LineCapTypeConverter, &wr, this, LINECAP_BUTT), + linejoin_type(_("Join:"), _("Determines the shape of the path's corners"), "linejoin_type", LineJoinTypeConverter, &wr, this, LINEJOIN_EXTRP_MITER_ARC), miter_limit(_("Miter limit:"), _("Maximum length of the miter (in units of stroke width)"), "miter_limit", &wr, this, 4.), - end_linecap_type(_("End cap:"), _("Determines the shape of the path's end"), "end_linecap_type", LineCapTypeConverter, &wr, this, LINECAP_ROUND) + end_linecap_type(_("End cap:"), _("Determines the shape of the path's end"), "end_linecap_type", LineCapTypeConverter, &wr, this, LINECAP_BUTT) { show_orig_path = true; @@ -267,20 +271,52 @@ void LPEPowerStroke::doOnApply(SPLPEItem const* lpeitem) { if (SP_IS_SHAPE(lpeitem)) { + SPLPEItem* item = const_cast<SPLPEItem*>(lpeitem); std::vector<Geom::Point> points; Geom::PathVector const &pathv = SP_SHAPE(lpeitem)->_curve->get_pathvector(); - double width = (lpeitem && lpeitem->style) ? lpeitem->style->stroke_width.computed : 1.; + double width = (lpeitem && lpeitem->style) ? lpeitem->style->stroke_width.computed / 2 : 1.; + + SPCSSAttr *css = sp_repr_css_attr_new (); + if (true) { + if (lpeitem->style->stroke.isPaintserver()) { + SPPaintServer * server = lpeitem->style->getStrokePaintServer(); + if (server) { + Glib::ustring str; + str += "url(#"; + str += server->getId(); + str += ")"; + sp_repr_css_set_property (css, "fill", str.c_str()); + } + } else if (lpeitem->style->stroke.isColor()) { + gchar c[64]; + sp_svg_write_color (c, sizeof(c), lpeitem->style->stroke.value.color.toRGBA32(SP_SCALE24_TO_FLOAT(lpeitem->style->stroke_opacity.value))); + sp_repr_css_set_property (css, "fill", c); + } else { + sp_repr_css_set_property (css, "fill", "none"); + } + } else { + sp_repr_css_unset_property (css, "fill"); + } + + sp_repr_css_set_property(css, "stroke", "none"); + + sp_desktop_apply_css_recursive(item, css, true); + sp_repr_css_attr_unref (css); + + item->updateRepr(); if (pathv.empty()) { - points.push_back( Geom::Point(0.,width) ); + points.push_back( Geom::Point(0.2,width) ); points.push_back( Geom::Point(0.5,width) ); - points.push_back( Geom::Point(1.,width) ); + points.push_back( Geom::Point(0.8,width) ); } else { Geom::Path const &path = pathv.front(); Geom::Path::size_type const size = path.size_default(); - points.push_back( Geom::Point(0.,width) ); + if (!path.closed()) { + points.push_back( Geom::Point(0.2,width) ); + } points.push_back( Geom::Point(0.5*size,width) ); if (!path.closed()) { - points.push_back( Geom::Point(size,width) ); + points.push_back( Geom::Point(size - 0.2,width) ); } } offset_points.param_set_and_write_new_value(points); @@ -289,6 +325,45 @@ LPEPowerStroke::doOnApply(SPLPEItem const* lpeitem) } } +void LPEPowerStroke::doOnRemove(SPLPEItem const* lpeitem) +{ + if (SP_IS_SHAPE(lpeitem)) { + SPLPEItem *item = const_cast<SPLPEItem*>(lpeitem); + SPCSSAttr *css = sp_repr_css_attr_new (); + if (true) { + if (lpeitem->style->fill.isPaintserver()) { + SPPaintServer * server = lpeitem->style->getFillPaintServer(); + if (server) { + Glib::ustring str; + str += "url(#"; + str += server->getId(); + str += ")"; + sp_repr_css_set_property (css, "stroke", str.c_str()); + } + } else if (lpeitem->style->fill.isColor()) { + gchar c[64]; + sp_svg_write_color (c, sizeof(c), lpeitem->style->stroke.value.color.toRGBA32(SP_SCALE24_TO_FLOAT(lpeitem->style->stroke_opacity.value))); + sp_repr_css_set_property (css, "stroke", c); + } else { + sp_repr_css_set_property (css, "stroke", "none"); + } + } else { + sp_repr_css_unset_property (css, "stroke"); + } + + Inkscape::CSSOStringStream os; + os << offset_points.median_width() * 2; + sp_repr_css_set_property (css, "stroke-width", os.str().c_str()); + + sp_repr_css_set_property(css, "fill", "none"); + + sp_desktop_apply_css_recursive(item, css, true); + sp_repr_css_attr_unref (css); + + item->updateRepr(); + } +} + void LPEPowerStroke::adjustForNewPath(std::vector<Geom::Path> const & path_in) { @@ -588,6 +663,9 @@ LPEPowerStroke::doEffect_path (std::vector<Geom::Path> const & path_in) if (Geom::Interpolate::CubicBezierJohan *johan = dynamic_cast<Geom::Interpolate::CubicBezierJohan*>(interpolator)) { johan->setBeta(interpolator_beta); } + if (Geom::Interpolate::CubicBezierSmooth *smooth = dynamic_cast<Geom::Interpolate::CubicBezierSmooth*>(interpolator)) { + smooth->setBeta(interpolator_beta); + } Geom::Path strokepath = interpolator->interpolateToPath(ts); delete interpolator; diff --git a/src/live_effects/lpe-powerstroke.h b/src/live_effects/lpe-powerstroke.h index 7bc736820..a773434aa 100644 --- a/src/live_effects/lpe-powerstroke.h +++ b/src/live_effects/lpe-powerstroke.h @@ -25,9 +25,11 @@ public: LPEPowerStroke(LivePathEffectObject *lpeobject); virtual ~LPEPowerStroke(); + virtual std::vector<Geom::Path> doEffect_path (std::vector<Geom::Path> const & path_in); virtual void doOnApply(SPLPEItem const* lpeitem); + virtual void doOnRemove(SPLPEItem const* lpeitem); // methods called by path-manipulator upon edits void adjustForNewPath(std::vector<Geom::Path> const & path_in); diff --git a/src/live_effects/lpe-tangent_to_curve.cpp b/src/live_effects/lpe-tangent_to_curve.cpp index dbebdf7fb..bce4876af 100644 --- a/src/live_effects/lpe-tangent_to_curve.cpp +++ b/src/live_effects/lpe-tangent_to_curve.cpp @@ -16,8 +16,6 @@ #include <glibmm/i18n.h> #include "live_effects/lpe-tangent_to_curve.h" -// FIXME: The following are only needed to convert the path's SPCurve* to pwd2. -// There must be a more convenient way to achieve this. #include "sp-path.h" #include "display/curve.h" @@ -108,13 +106,13 @@ LPETangentToCurve::addKnotHolderEntities(KnotHolder *knotholder, SPDesktop *desk { KnotHolderEntity *e = new TtC::KnotHolderEntityLeftEnd(this); e->create( desktop, item, knotholder, Inkscape::CTRL_TYPE_UNKNOWN, - _("Adjust the \"left\" end of the tangent") ); + _("Adjust the <b>left</b> end of the tangent") ); knotholder->add(e); } { KnotHolderEntity *e = new TtC::KnotHolderEntityRightEnd(this); e->create( desktop, item, knotholder, Inkscape::CTRL_TYPE_UNKNOWN, - _("Adjust the \"right\" end of the tangent") ); + _("Adjust the <b>right</b> end of the tangent") ); knotholder->add(e); } }; @@ -130,14 +128,13 @@ KnotHolderEntityAttachPt::knot_set(Geom::Point const &p, Geom::Point const &/*or Geom::Point const s = snap_knot_position(p, state); - // FIXME: There must be a better way of converting the path's SPCurve* to pwd2. - SPCurve *curve = SP_PATH(item)->get_curve_for_edit(); - Geom::PathVector pathv = curve->get_pathvector(); - Piecewise<D2<SBasis> > pwd2; - for (unsigned int i=0; i < pathv.size(); i++) { - pwd2.concat(pathv[i].toPwSb()); + if ( !SP_IS_SHAPE(lpe->sp_lpe_item) ) { + //lpe->t_attach.param_set_value(0); + g_warning("LPEItem is not a path! %s:%d\n", __FILE__, __LINE__); + return; } - + Piecewise<D2<SBasis> > pwd2 = paths_to_pw( lpe->pathvector_before_effect ); + double t0 = nearest_point(s, pwd2); lpe->t_attach.param_set_value(t0); diff --git a/src/live_effects/lpe-tangent_to_curve.h b/src/live_effects/lpe-tangent_to_curve.h index 309afc14b..8e44c01d1 100644 --- a/src/live_effects/lpe-tangent_to_curve.h +++ b/src/live_effects/lpe-tangent_to_curve.h @@ -34,7 +34,6 @@ class LPETangentToCurve : public Effect { public: LPETangentToCurve(LivePathEffectObject *lpeobject); virtual ~LPETangentToCurve(); - virtual Geom::Piecewise<Geom::D2<Geom::SBasis> > doEffect_pwd2 (Geom::Piecewise<Geom::D2<Geom::SBasis> > const & pwd2_in); diff --git a/src/live_effects/lpe-taperstroke.cpp b/src/live_effects/lpe-taperstroke.cpp new file mode 100644 index 000000000..5564a3b2c --- /dev/null +++ b/src/live_effects/lpe-taperstroke.cpp @@ -0,0 +1,630 @@ +/** + * @file + * Taper Stroke path effect, provided as an alternative to Power Strokes + * for otherwise constant-width paths. + * + * Authors: + * Liam P White <inkscapebrony@gmail.com> + * + * Copyright (C) 2014 Authors + * + * Released under GNU GPL, read the file 'COPYING' for more information + */ + +#include "live_effects/lpe-taperstroke.h" + +#include <2geom/path.h> +#include <2geom/shape.h> +#include <2geom/path.h> +#include <2geom/circle.h> +#include <2geom/sbasis-to-bezier.h> +#include "pathoutlineprovider.h" +#include "display/curve.h" +#include "sp-shape.h" +#include "style.h" +#include "xml/repr.h" +#include "sp-paint-server.h" +#include "svg/svg-color.h" +#include "desktop-style.h" +#include "svg/css-ostringstream.h" +#include "svg/svg.h" + +//#include <glibmm/i18n.h> + +#include "knot-holder-entity.h" +#include "knotholder.h" + +template<typename T> +inline bool withinRange(T value, T low, T high) { + return (value > low && value < high); +} + +namespace Inkscape { +namespace LivePathEffect { + +namespace TpS { + class KnotHolderEntityAttachBegin : public LPEKnotHolderEntity { + public: + KnotHolderEntityAttachBegin(LPETaperStroke * effect) : LPEKnotHolderEntity(effect) {} + virtual void knot_set(Geom::Point const &p, Geom::Point const &origin, guint state); + virtual Geom::Point knot_get() const; + }; + + class KnotHolderEntityAttachEnd : public LPEKnotHolderEntity { + public: + KnotHolderEntityAttachEnd(LPETaperStroke * effect) : LPEKnotHolderEntity(effect) {} + virtual void knot_set(Geom::Point const &p, Geom::Point const &origin, guint state); + virtual Geom::Point knot_get() const; + }; +} // TpS + +static const Util::EnumData<unsigned> JoinType[] = { + {LINEJOIN_STRAIGHT, N_("Beveled"), "bevel"}, + {LINEJOIN_ROUND, N_("Rounded"), "round"}, + {LINEJOIN_REFLECTED, N_("Reflected"), "reflected"}, + {LINEJOIN_POINTY, N_("Miter"), "miter"}, + {LINEJOIN_EXTRAPOLATED, N_("Extrapolated"), "extrapolated"} +}; + +static const Util::EnumDataConverter<unsigned> JoinTypeConverter(JoinType, sizeof (JoinType)/sizeof(*JoinType)); + +LPETaperStroke::LPETaperStroke(LivePathEffectObject *lpeobject) : + Effect(lpeobject), + line_width(_("Stroke width"), _("The (non-tapered) width of the path"), "stroke_width", &wr, this, 1.), + attach_start(_("Start offset"), _("Taper distance from path start"), "attach_start", &wr, this, 0.2), + attach_end(_("End offset"), _("The ending position of the taper"), "end_offset", &wr, this, 0.2), + smoothing(_("Taper smoothing"), _("Amount of smoothing to apply to the tapers"), "smoothing", &wr, this, 0.5), + join_type(_("Join type"), _("Join type for non-smooth nodes"), "jointype", JoinTypeConverter, &wr, this, LINEJOIN_EXTRAPOLATED), + miter_limit(_("Miter limit"), _("Limit for miter joins"), "miter_limit", &wr, this, 100.) +{ + show_orig_path = true; + _provides_knotholder_entities = true; + + attach_start.param_set_digits(3); + attach_end.param_set_digits(3); + + + registerParameter( dynamic_cast<Parameter *>(&line_width) ); + registerParameter( dynamic_cast<Parameter *>(&attach_start) ); + registerParameter( dynamic_cast<Parameter *>(&attach_end) ); + registerParameter( dynamic_cast<Parameter *>(&smoothing) ); + registerParameter( dynamic_cast<Parameter *>(&join_type) ); + registerParameter( dynamic_cast<Parameter *>(&miter_limit) ); +} + +LPETaperStroke::~LPETaperStroke() +{ + +} + +//from LPEPowerStroke -- sets fill if stroke color because we will +//be converting to a fill to make the new join. + +void LPETaperStroke::doOnApply(SPLPEItem const* lpeitem) +{ + if (SP_IS_SHAPE(lpeitem)) { + SPLPEItem* item = const_cast<SPLPEItem*>(lpeitem); + double width = (lpeitem && lpeitem->style) ? lpeitem->style->stroke_width.computed : 1.; + + SPCSSAttr *css = sp_repr_css_attr_new (); + if (true) { + if (lpeitem->style->stroke.isPaintserver()) { + SPPaintServer * server = lpeitem->style->getStrokePaintServer(); + if (server) { + Glib::ustring str; + str += "url(#"; + str += server->getId(); + str += ")"; + sp_repr_css_set_property (css, "fill", str.c_str()); + } + } else if (lpeitem->style->stroke.isColor()) { + gchar c[64]; + sp_svg_write_color (c, sizeof(c), lpeitem->style->stroke.value.color.toRGBA32(SP_SCALE24_TO_FLOAT(lpeitem->style->stroke_opacity.value))); + sp_repr_css_set_property (css, "fill", c); + } else { + sp_repr_css_set_property (css, "fill", "none"); + } + } else { + sp_repr_css_unset_property (css, "fill"); + } + + sp_repr_css_set_property(css, "stroke", "none"); + + sp_desktop_apply_css_recursive(item, css, true); + sp_repr_css_attr_unref (css); + + line_width.param_set_value(width); + } else { + g_warning("LPE Join Type can only be applied to paths (not groups)."); + } +} + +//from LPEPowerStroke -- sets stroke color from existing fill color + +void LPETaperStroke::doOnRemove(SPLPEItem const* lpeitem) +{ + + if (SP_IS_SHAPE(lpeitem)) { + SPLPEItem *item = const_cast<SPLPEItem*>(lpeitem); + + SPCSSAttr *css = sp_repr_css_attr_new (); + if (true) { + if (lpeitem->style->fill.isPaintserver()) { + SPPaintServer * server = lpeitem->style->getFillPaintServer(); + if (server) { + Glib::ustring str; + str += "url(#"; + str += server->getId(); + str += ")"; + sp_repr_css_set_property (css, "stroke", str.c_str()); + } + } else if (lpeitem->style->fill.isColor()) { + gchar c[64]; + sp_svg_write_color (c, sizeof(c), lpeitem->style->stroke.value.color.toRGBA32(SP_SCALE24_TO_FLOAT(lpeitem->style->stroke_opacity.value))); + sp_repr_css_set_property (css, "stroke", c); + } else { + sp_repr_css_set_property (css, "stroke", "none"); + } + } else { + sp_repr_css_unset_property (css, "stroke"); + } + + Inkscape::CSSOStringStream os; + os << fabs(line_width); + sp_repr_css_set_property (css, "stroke-width", os.str().c_str()); + + sp_repr_css_set_property(css, "fill", "none"); + + sp_desktop_apply_css_recursive(item, css, true); + sp_repr_css_attr_unref (css); + item->updateRepr(); + } +} + +//actual effect impl here + +Geom::Path return_at_first_cusp (Geom::Path const & path_in, double /*smooth_tolerance*/ = 0.05) +{ + return Geom::split_at_cusps(path_in)[0]; +} + +Geom::Piecewise<Geom::D2<Geom::SBasis> > stretch_along(Geom::Piecewise<Geom::D2<Geom::SBasis> > pwd2_in, Geom::Path pattern, double width); + +//references to pointers, because magic +void subdivideCurve(Geom::Curve * curve_in, Geom::Coord t, Geom::Curve *& val_first, Geom::Curve *& val_second); + +Geom::PathVector LPETaperStroke::doEffect_path(Geom::PathVector const& path_in) +{ + Geom::Path first_cusp = return_at_first_cusp(path_in[0]); + Geom::Path last_cusp = return_at_first_cusp(path_in[0].reverse()); + + bool zeroStart = false; + bool zeroEnd = false; + bool metInMiddle = false; + + //there is a pretty good chance that people will try to drag the knots + //on top of each other, so block it + + unsigned size = path_in[0].size(); + if (size == first_cusp.size()) { + //check to see if the knots were dragged over each other + //if so, reset the end offset, but still allow the start offset. + if ( attach_start >= (size - attach_end) ) { + attach_end.param_set_value( size - attach_start ); + metInMiddle = true; + } + } + + if (attach_start == size - attach_end) { + metInMiddle = true; + } + if (attach_end == size - attach_start) { + metInMiddle = true; + } + + //don't let it be integer + { + if (double(unsigned(attach_start)) == attach_start) { + attach_start.param_set_value(attach_start - 0.00001); + } + if (double(unsigned(attach_end)) == attach_end) { + attach_end.param_set_value(attach_end - 0.00001); + } + } + + unsigned allowed_start = first_cusp.size(); + unsigned allowed_end = last_cusp.size(); + + //don't let the knots be farther than they are allowed to be + { + if ((unsigned)attach_start >= allowed_start) { + attach_start.param_set_value((double)allowed_start - 0.00001); + } + if ((unsigned)attach_end >= allowed_end) { + attach_end.param_set_value((double)allowed_end - 0.00001); + } + } + + //don't let it be zero + if (attach_start < 0.0000001 || withinRange(double(attach_start), 0.00000001, 0.000001)) { + attach_start.param_set_value( 0.0000001 ); + zeroStart = true; + } + if (attach_end < 0.0000001 || withinRange(double(attach_end), 0.00000001, 0.000001)) { + attach_end.param_set_value( 0.0000001 ); + zeroEnd = true; + } + + //remember, Path::operator () means get point at time t + start_attach_point = first_cusp(attach_start); + end_attach_point = last_cusp(attach_end); + Geom::PathVector pathv_out; + + //the following function just splits it up into three pieces. + pathv_out = doEffect_simplePath(path_in); + + //now for the actual tapering. We use the stretch_along method to get this done. + + Geom::PathVector real_pathv; + Geom::Path real_path; + Geom::PathVector pat_vec; + Geom::Piecewise<Geom::D2<Geom::SBasis> > pwd2; + Geom::Path throwaway_path; + + if (!zeroStart) { + //Construct the pattern (pat_str stands for pattern string) (and yes, this is easier, trust me) + std::stringstream pat_str; + pat_str << "M 1,0 C " << 1 - (double)smoothing << ",0 0,0.5 0,0.5 0,0.5 " << 1 - (double)smoothing << ",1 1,1"; + + pat_vec = sp_svg_read_pathv(pat_str.str().c_str()); + pwd2.concat(stretch_along(pathv_out[0].toPwSb(), pat_vec[0], -fabs(line_width))); + throwaway_path = Geom::path_from_piecewise(pwd2, LPE_CONVERSION_TOLERANCE)[0]; + + real_path.append(throwaway_path); + } + + if (!metInMiddle) { + //append the outside outline of the path (with direction) + throwaway_path = Outline::PathOutsideOutline(pathv_out[1], + -fabs(line_width), static_cast<LineJoinType>(join_type.get_value()), miter_limit); + if (!zeroStart && real_path.size() >= 1 && throwaway_path.size() >= 1) { + if (Geom::distance(real_path.finalPoint(), throwaway_path.initialPoint()) > 0.0000001) { + real_path.appendNew<Geom::LineSegment>(throwaway_path.initialPoint()); + } else { + real_path.setFinal(throwaway_path.initialPoint()); + } + } + real_path.append(throwaway_path); + } + + if (!zeroEnd) { + //append the ending taper + std::stringstream pat_str_1; + pat_str_1 << "M 0,1 C " << (double)smoothing << ",1 1,0.5 1,0.5 1,0.5 " << double(smoothing) << ",0 0,0"; + pat_vec = sp_svg_read_pathv(pat_str_1.str().c_str()); + + pwd2 = Geom::Piecewise<Geom::D2<Geom::SBasis> > (); + pwd2.concat(stretch_along(pathv_out[2].toPwSb(), pat_vec[0], -fabs(line_width))); + + throwaway_path = Geom::path_from_piecewise(pwd2, LPE_CONVERSION_TOLERANCE)[0]; + if (Geom::distance(real_path.finalPoint(), throwaway_path.initialPoint()) > 0.0000001 && real_path.size() >= 1) { + real_path.appendNew<Geom::LineSegment>(throwaway_path.initialPoint()); + } else { + real_path.setFinal(throwaway_path.initialPoint()); + } + real_path.append(throwaway_path); + } + + if (!metInMiddle) { + //append the inside outline of the path (against direction) + throwaway_path = Outline::PathOutsideOutline(pathv_out[1].reverse(), + -fabs(line_width), static_cast<LineJoinType>(join_type.get_value()), miter_limit); + + if (Geom::distance(real_path.finalPoint(), throwaway_path.initialPoint()) > 0.0000001 && real_path.size() >= 1) { + real_path.appendNew<Geom::LineSegment>(throwaway_path.initialPoint()); + } else { + real_path.setFinal(throwaway_path.initialPoint()); + } + real_path.append(throwaway_path); + } + + if (Geom::distance(real_path.finalPoint(), real_path.initialPoint()) > 0.0000001) { + real_path.appendNew<Geom::LineSegment>(real_path.initialPoint()); + } else { + real_path.setFinal(real_path.initialPoint()); + } + real_path.close(); + + real_pathv.push_back(real_path); + + return real_pathv; +} + +//in all cases, this should return a PathVector with three elements. +Geom::PathVector LPETaperStroke::doEffect_simplePath(Geom::PathVector const & path_in) +{ + unsigned size = path_in[0].size(); + + //do subdivision and get out + unsigned loc = (unsigned)attach_start; + Geom::Curve * curve_start = path_in[0] [loc].duplicate(); + + std::vector<Geom::Path> pathv_out; + Geom::Path path_out = Geom::Path(); + + Geom::Path trimmed_start = Geom::Path(); + Geom::Path trimmed_end = Geom::Path(); + + for (unsigned i = 0; i < loc; i++) { + trimmed_start.append(path_in[0] [i]); + } + + Geom::Curve * temp; + subdivideCurve(curve_start, attach_start - loc, temp, curve_start); + trimmed_start.append(*temp); + if (temp) delete temp; temp = 0; + + //special case: path is one segment long + //special case: what if the two knots occupy the same segment? + if ((size == 1) || ( size - unsigned(attach_end) - 1 == loc )) { + Geom::Coord t = Geom::nearest_point(end_attach_point, *curve_start); + + //it is just a dumb segment + //we have to do some shifting here because the value changed when we reduced the length + //of the previous segment. + + subdivideCurve(curve_start, t, curve_start, temp); + trimmed_end.append(*temp); + if (temp) delete temp; temp = 0; + + for (unsigned j = (size - attach_end) + 1; j < size; j++) { + trimmed_end.append(path_in[0] [j]); + } + + path_out.append(*curve_start); + pathv_out.push_back(trimmed_start); + pathv_out.push_back(path_out); + pathv_out.push_back(trimmed_end); + return pathv_out; + } + + pathv_out.push_back(trimmed_start); + + //append almost all of the rest of the path, ignore the curves that the knot is past (we'll get to it in a minute) + path_out.append(*curve_start); + + for (unsigned k = loc + 1; k < (size - unsigned(attach_end)) - 1; k++) { + path_out.append(path_in[0] [k]); + } + + //deal with the last segment in a very similar fashion to the first + loc = size - attach_end; + + Geom::Curve * curve_end = path_in[0] [loc].duplicate(); + + Geom::Coord t = Geom::nearest_point(end_attach_point, *curve_end); + + subdivideCurve(curve_end, t, curve_end, temp); + trimmed_end.append(*temp); + if (temp) delete temp; temp = 0; + + for (unsigned j = (size - attach_end) + 1; j < size; j++) { + trimmed_end.append(path_in[0] [j]); + } + + path_out.append(*curve_end); + pathv_out.push_back(path_out); + + pathv_out.push_back(trimmed_end); + + if (curve_end) delete curve_end; + if (curve_start) delete curve_start; + return pathv_out; +} + + +//most of the below code is verbatim from Pattern Along Path. However, it needed a little +//tweaking to get it to work right in this case. +Geom::Piecewise<Geom::D2<Geom::SBasis> > stretch_along(Geom::Piecewise<Geom::D2<Geom::SBasis> > pwd2_in, Geom::Path pattern, double prop_scale) +{ + using namespace Geom; + + // Don't allow empty path parameter: + if ( pattern.empty() ) { + return pwd2_in; + } + + /* Much credit should go to jfb and mgsloan of lib2geom development for the code below! */ + Piecewise<D2<SBasis> > output; + std::vector<Geom::Piecewise<Geom::D2<Geom::SBasis> > > pre_output; + + D2<Piecewise<SBasis> > patternd2 = make_cuts_independent(pattern.toPwSb()); + Piecewise<SBasis> x0 = Piecewise<SBasis>(patternd2[0]); + Piecewise<SBasis> y0 = Piecewise<SBasis>(patternd2[1]); + OptInterval pattBndsX = bounds_exact(x0); + OptInterval pattBndsY = bounds_exact(y0); + if (pattBndsX && pattBndsY) { + x0 -= pattBndsX->min(); + y0 -= pattBndsY->middle(); + + double xspace = 0; + double noffset = 0; + double toffset = 0; + //Prevent more than 90% overlap... + if (xspace < -pattBndsX->extent()*.9) { + xspace = -pattBndsX->extent()*.9; + } + + y0+=noffset; + + std::vector<Geom::Piecewise<Geom::D2<Geom::SBasis> > > paths_in; + paths_in = split_at_discontinuities(pwd2_in); + + for (unsigned idx = 0; idx < paths_in.size(); idx++) { + Geom::Piecewise<Geom::D2<Geom::SBasis> > path_i = paths_in[idx]; + Piecewise<SBasis> x = x0; + Piecewise<SBasis> y = y0; + Piecewise<D2<SBasis> > uskeleton = arc_length_parametrization(path_i,2,.1); + uskeleton = remove_short_cuts(uskeleton,.01); + Piecewise<D2<SBasis> > n = rot90(derivative(uskeleton)); + n = force_continuity(remove_short_cuts(n,.1)); + + int nbCopies = 0; + double scaling = 1; + nbCopies = 1; + scaling = (uskeleton.domain().extent() - toffset)/pattBndsX->extent(); + + double pattWidth = pattBndsX->extent() * scaling; + + if (scaling != 1.0) { + x*=scaling; + } + if ( false ) { + y*=(scaling*prop_scale); + } else { + if (prop_scale != 1.0) y *= prop_scale; + } + x += toffset; + + double offs = 0; + for (int i=0; i<nbCopies; i++) { + if (false) { + Geom::Piecewise<Geom::D2<Geom::SBasis> > output_piece = compose(uskeleton,x+offs)+y*compose(n,x+offs); + std::vector<Geom::Piecewise<Geom::D2<Geom::SBasis> > > splited_output_piece = split_at_discontinuities(output_piece); + pre_output.insert(pre_output.end(), splited_output_piece.begin(), splited_output_piece.end() ); + } else { + output.concat(compose(uskeleton,x+offs)+y*compose(n,x+offs)); + } + offs+=pattWidth; + } + } + return output; + } else { + return pwd2_in; + } +} + +void subdivideCurve(Geom::Curve * curve_in, Geom::Coord t, Geom::Curve *& val_first, Geom::Curve *& val_second) +{ + if (Geom::LineSegment* linear = dynamic_cast<Geom::LineSegment*>(curve_in)) { + //special case for line segments + std::pair<Geom::LineSegment, Geom::LineSegment> seg_pair = linear->subdivide(t); + val_first = seg_pair.first.duplicate(); + val_second = seg_pair.second.duplicate(); + } else { + //all other cases: + Geom::CubicBezier cubic = Geom::sbasis_to_cubicbezier(curve_in->toSBasis()); + std::pair<Geom::CubicBezier, Geom::CubicBezier> cubic_pair = cubic.subdivide(t); + val_first = cubic_pair.first.duplicate(); + val_second = cubic_pair.second.duplicate(); + } +} + + +void LPETaperStroke::addKnotHolderEntities(KnotHolder *knotholder, SPDesktop *desktop, SPItem *item) +{ + { + KnotHolderEntity *e = new TpS::KnotHolderEntityAttachBegin(this); + e->create( desktop, item, knotholder, Inkscape::CTRL_TYPE_UNKNOWN, + _("Start point of the taper"), SP_KNOT_SHAPE_CIRCLE ); + knotholder->add(e); + } + { + KnotHolderEntity *e = new TpS::KnotHolderEntityAttachEnd(this); + e->create( desktop, item, knotholder, Inkscape::CTRL_TYPE_UNKNOWN, + _("End point of the taper"), SP_KNOT_SHAPE_CIRCLE ); + knotholder->add(e); + } +} + +namespace TpS { +void KnotHolderEntityAttachBegin::knot_set(Geom::Point const &p, Geom::Point const &/*origin*/, guint state) +{ + using namespace Geom; + + LPETaperStroke* lpe = dynamic_cast<LPETaperStroke *>(_effect); + + Geom::Point const s = snap_knot_position(p, state); + + if (!SP_IS_SHAPE(lpe->sp_lpe_item) ) { + g_warning("LPEItem is not a path! %s:%d\n", __FILE__, __LINE__); + return; + } + + SPCurve* curve; + if ( !(curve = SP_SHAPE(lpe->sp_lpe_item)->getCurve()) ) { + //oops + //lpe->attach_start.param_set_value(0); + return; + } + //in case you are wondering, the above are simply sanity checks. we never want to actually + //use that object. + + Geom::PathVector pathv = lpe->pathvector_before_effect; + + Piecewise<D2<SBasis> > pwd2; + Geom::Path p_in = return_at_first_cusp(pathv[0]); + pwd2.concat(p_in.toPwSb()); + + double t0 = nearest_point(s, pwd2); + lpe->attach_start.param_set_value(t0); + + // FIXME: this should not directly ask for updating the item. It should write to SVG, which triggers updating. + sp_lpe_item_update_patheffect (SP_LPE_ITEM(item), false, true); +} +void KnotHolderEntityAttachEnd::knot_set(Geom::Point const &p, Geom::Point const& /*origin*/, guint state) +{ + using namespace Geom; + + LPETaperStroke* lpe = dynamic_cast<LPETaperStroke *>(_effect); + + Geom::Point const s = snap_knot_position(p, state); + + if (!SP_IS_SHAPE(lpe->sp_lpe_item) ) { + g_warning("LPEItem is not a path! %s:%d\n", __FILE__, __LINE__); + return; + } + + SPCurve* curve; + if ( !(curve = SP_SHAPE(lpe->sp_lpe_item)->getCurve()) ) { + //oops + //lpe->attach_end.param_set_value(0); + return; + } + Geom::PathVector pathv = lpe->pathvector_before_effect; + Geom::Path p_in = return_at_first_cusp(pathv[0].reverse()); + Piecewise<D2<SBasis> > pwd2 = p_in.toPwSb(); + + double t0 = nearest_point(s, pwd2); + lpe->attach_end.param_set_value(t0); + + sp_lpe_item_update_patheffect (SP_LPE_ITEM(item), false, true); +} +Geom::Point KnotHolderEntityAttachBegin::knot_get() const +{ + LPETaperStroke const * lpe = dynamic_cast<LPETaperStroke const*> (_effect); + return lpe->start_attach_point; +} +Geom::Point KnotHolderEntityAttachEnd::knot_get() const +{ + LPETaperStroke const * lpe = dynamic_cast<LPETaperStroke const*> (_effect); + return lpe->end_attach_point; +} +} + + +/* ######################## */ + +} //namespace LivePathEffect +} /* namespace Inkscape */ + +/* + Local Variables: + mode:c++ + c-file-style:"stroustrup" + c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +)) + indent-tabs-mode:nil + fill-column:99 + End: +*/ +// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:fileencoding=utf-8:textwidth=99 : diff --git a/src/live_effects/lpe-taperstroke.h b/src/live_effects/lpe-taperstroke.h new file mode 100644 index 000000000..997209543 --- /dev/null +++ b/src/live_effects/lpe-taperstroke.h @@ -0,0 +1,72 @@ +/** @file + * @brief Taper Stroke path effect (meant as a replacement for using Power Strokes for tapering) + */ +/* Authors: + * Liam P White <inkscapebrony@gmail.com> + * Copyright (C) 2014 Authors + * + * Released under GNU GPL, read the file 'COPYING' for more information + */ + +#ifndef INKSCAPE_LPE_TAPERSTROKE_H +#define INKSCAPE_LPE_TAPERSTROKE_H + +#include "live_effects/parameter/enum.h" +#include "live_effects/effect.h" +#include "live_effects/parameter/parameter.h" +#include "live_effects/parameter/vector.h" + +namespace Inkscape { +namespace LivePathEffect { + +namespace TpS { +// we need a separate namespace to avoid clashes with other LPEs +class KnotHolderEntityAttachBegin; +class KnotHolderEntityAttachEnd; +} + +class LPETaperStroke : public Effect { +public: + LPETaperStroke(LivePathEffectObject *lpeobject); + virtual ~LPETaperStroke(); + + virtual void doOnApply(SPLPEItem const* lpeitem); + virtual void doOnRemove(SPLPEItem const* lpeitem); + + virtual Geom::PathVector doEffect_path (Geom::PathVector const& path_in); + Geom::PathVector doEffect_simplePath(Geom::PathVector const& path_in); + + virtual void addKnotHolderEntities(KnotHolder * knotholder, SPDesktop * desktop, SPItem * item); + + friend class TpS::KnotHolderEntityAttachBegin; + friend class TpS::KnotHolderEntityAttachEnd; +private: + ScalarParam line_width; + ScalarParam attach_start; + ScalarParam attach_end; + ScalarParam smoothing; + EnumParam<unsigned> join_type; + ScalarParam miter_limit; + + Geom::Point start_attach_point; + Geom::Point end_attach_point; + + LPETaperStroke(const LPETaperStroke&); + LPETaperStroke& operator=(const LPETaperStroke&); +}; + +} //namespace LivePathEffect +} //namespace Inkscape + +#endif + +/* + Local Variables: + mode:c++ + c-file-style:"stroustrup" + c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +)) + indent-tabs-mode:nil + fill-column:99 + End: +*/ +// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:fileencoding=utf-8:textwidth=99 : diff --git a/src/live_effects/parameter/Makefile_insert b/src/live_effects/parameter/Makefile_insert index 1137ef34b..f990f41c7 100644 --- a/src/live_effects/parameter/Makefile_insert +++ b/src/live_effects/parameter/Makefile_insert @@ -20,12 +20,16 @@ ink_common_sources += \ live_effects/parameter/path.h \ live_effects/parameter/originalpath.cpp \ live_effects/parameter/originalpath.h \ + live_effects/parameter/originalpatharray.cpp \ + live_effects/parameter/originalpatharray.h \ live_effects/parameter/powerstrokepointarray.cpp \ live_effects/parameter/powerstrokepointarray.h \ live_effects/parameter/filletchamferpointarray.cpp \ live_effects/parameter/filletchamferpointarray.h \ live_effects/parameter/text.cpp \ live_effects/parameter/text.h \ + live_effects/parameter/transformedpoint.cpp \ + live_effects/parameter/transformedpoint.h \ live_effects/parameter/togglebutton.cpp \ live_effects/parameter/togglebutton.h \ live_effects/parameter/unit.cpp \ diff --git a/src/live_effects/parameter/filletchamferpointarray.cpp b/src/live_effects/parameter/filletchamferpointarray.cpp index cfc0ebcf1..bb00ef045 100644 --- a/src/live_effects/parameter/filletchamferpointarray.cpp +++ b/src/live_effects/parameter/filletchamferpointarray.cpp @@ -8,6 +8,11 @@ * Released under GNU GPL, read the file 'COPYING' for more information */ +#include <glibmm.h> + +#include "ui/dialog/lpe-fillet-chamfer-properties.h" +#include "live_effects/parameter/filletchamferpointarray.h" + #include <2geom/piecewise.h> #include <2geom/sbasis-to-bezier.h> #include <2geom/sbasis-geometric.h> diff --git a/src/live_effects/parameter/originalpatharray.cpp b/src/live_effects/parameter/originalpatharray.cpp new file mode 100644 index 000000000..514c9e23e --- /dev/null +++ b/src/live_effects/parameter/originalpatharray.cpp @@ -0,0 +1,497 @@ +/* + * Copyright (C) Johan Engelen 2008 <j.b.c.engelen@utwente.nl> + * + * Released under GNU GPL, read the file 'COPYING' for more information + */ + +#ifdef HAVE_CONFIG_H +# include "config.h" +#endif + +#if GLIBMM_DISABLE_DEPRECATED && HAVE_GLIBMM_THREADS_H +#include <glibmm/threads.h> +#endif + +#include "live_effects/parameter/originalpatharray.h" + +#include <gtkmm/widget.h> +#include <gtkmm/icontheme.h> +#include <gtkmm/imagemenuitem.h> +#include <gtkmm/separatormenuitem.h> +#include <gtkmm/scrolledwindow.h> + +#include <glibmm/i18n.h> + +#include "inkscape.h" +#include "icon-size.h" +#include "widgets/icon.h" +#include "ui/clipboard.h" +#include "svg/svg.h" +#include "svg/stringstream.h" +#include "originalpath.h" +#include "uri.h" +#include "display/curve.h" + +#include <2geom/coord.h> +#include <2geom/point.h> +#include "sp-shape.h" +#include "sp-text.h" +#include "live_effects/effect.h" + +#include "verbs.h" +#include "document-undo.h" +#include "document.h" + +namespace Inkscape { + +namespace LivePathEffect { + +class OriginalPathArrayParam::ModelColumns : public Gtk::TreeModel::ColumnRecord +{ +public: + + ModelColumns() + { + add(_colObject); + add(_colLabel); + add(_colReverse); + } + virtual ~ModelColumns() {} + + Gtk::TreeModelColumn<PathAndDirection*> _colObject; + Gtk::TreeModelColumn<Glib::ustring> _colLabel; + Gtk::TreeModelColumn<bool> _colReverse; +}; + +OriginalPathArrayParam::OriginalPathArrayParam( const Glib::ustring& label, + const Glib::ustring& tip, + const Glib::ustring& key, + Inkscape::UI::Widget::Registry* wr, + Effect* effect ) +: Parameter(label, tip, key, wr, effect), + _vector(), + _tree(), + _text_renderer(), + _toggle_renderer(), + _scroller() +{ + _model = new ModelColumns(); + _store = Gtk::TreeStore::create(*_model); + _tree.set_model(_store); + + _tree.set_reorderable(true); + _tree.enable_model_drag_dest (Gdk::ACTION_MOVE); + + _text_renderer = manage(new Gtk::CellRendererText()); + int nameColNum = _tree.append_column(_("Name"), *_text_renderer) - 1; + _name_column = _tree.get_column(nameColNum); + _name_column->add_attribute(_text_renderer->property_text(), _model->_colLabel); + + _tree.set_expander_column( *_tree.get_column(nameColNum) ); + _tree.set_search_column(_model->_colLabel); + + Gtk::CellRendererToggle * _toggle_renderer = manage(new Gtk::CellRendererToggle()); + int toggleColNum = _tree.append_column(_("Reverse"), *_toggle_renderer) - 1; + Gtk::TreeViewColumn* col = _tree.get_column(toggleColNum); + _toggle_renderer->set_activatable(true); + _toggle_renderer->signal_toggled().connect(sigc::mem_fun(*this, &OriginalPathArrayParam::on_reverse_toggled)); + col->add_attribute(_toggle_renderer->property_active(), _model->_colReverse); + + //quick little hack -- newer versions of gtk gave the item zero space allotment + _scroller.set_size_request(-1, 120); + + _scroller.add(_tree); + _scroller.set_policy( Gtk::POLICY_AUTOMATIC, Gtk::POLICY_AUTOMATIC ); + //_scroller.set_shadow_type(Gtk::SHADOW_IN); + + oncanvas_editable = true; + +} + +OriginalPathArrayParam::~OriginalPathArrayParam() +{ + while (!_vector.empty()) { + PathAndDirection *w = _vector.back(); + _vector.pop_back(); + unlink(w); + delete w; + } + delete _model; +} + +void OriginalPathArrayParam::on_reverse_toggled(const Glib::ustring& path) +{ + Gtk::TreeModel::iterator iter = _store->get_iter(path); + Gtk::TreeModel::Row row = *iter; + PathAndDirection *w = row[_model->_colObject]; + row[_model->_colReverse] = !row[_model->_colReverse]; + w->reversed = row[_model->_colReverse]; + + gchar * full = param_getSVGValue(); + param_write_to_repr(full); + g_free(full); + DocumentUndo::done(param_effect->getSPDoc(), SP_VERB_DIALOG_LIVE_PATH_EFFECT, + _("Link path parameter to path")); +} + +void OriginalPathArrayParam::param_set_default() +{ + +} + +Gtk::Widget* OriginalPathArrayParam::param_newWidget() +{ + Gtk::VBox* vbox = Gtk::manage(new Gtk::VBox()); + Gtk::HBox* hbox = Gtk::manage(new Gtk::HBox()); + + vbox->pack_start(_scroller, Gtk::PACK_EXPAND_WIDGET); + + + { // Paste path to link button + Gtk::Widget *pIcon = Gtk::manage( sp_icon_get_icon( GTK_STOCK_PASTE, Inkscape::ICON_SIZE_BUTTON) ); + Gtk::Button *pButton = Gtk::manage(new Gtk::Button()); + pButton->set_relief(Gtk::RELIEF_NONE); + pIcon->show(); + pButton->add(*pIcon); + pButton->show(); + pButton->signal_clicked().connect(sigc::mem_fun(*this, &OriginalPathArrayParam::on_link_button_click)); + hbox->pack_start(*pButton, Gtk::PACK_SHRINK); + pButton->set_tooltip_text(_("Link to path")); + } + + { // Remove linked path + Gtk::Widget *pIcon = Gtk::manage( sp_icon_get_icon( GTK_STOCK_REMOVE, Inkscape::ICON_SIZE_BUTTON) ); + Gtk::Button *pButton = Gtk::manage(new Gtk::Button()); + pButton->set_relief(Gtk::RELIEF_NONE); + pIcon->show(); + pButton->add(*pIcon); + pButton->show(); + pButton->signal_clicked().connect(sigc::mem_fun(*this, &OriginalPathArrayParam::on_remove_button_click)); + hbox->pack_start(*pButton, Gtk::PACK_SHRINK); + pButton->set_tooltip_text(_("Remove Path")); + } + + { // Move Down + Gtk::Widget *pIcon = Gtk::manage( sp_icon_get_icon( GTK_STOCK_GO_DOWN, Inkscape::ICON_SIZE_BUTTON) ); + Gtk::Button *pButton = Gtk::manage(new Gtk::Button()); + pButton->set_relief(Gtk::RELIEF_NONE); + pIcon->show(); + pButton->add(*pIcon); + pButton->show(); + pButton->signal_clicked().connect(sigc::mem_fun(*this, &OriginalPathArrayParam::on_down_button_click)); + hbox->pack_end(*pButton, Gtk::PACK_SHRINK); + pButton->set_tooltip_text(_("Move Down")); + } + + { // Move Down + Gtk::Widget *pIcon = Gtk::manage( sp_icon_get_icon( GTK_STOCK_GO_UP, Inkscape::ICON_SIZE_BUTTON) ); + Gtk::Button *pButton = Gtk::manage(new Gtk::Button()); + pButton->set_relief(Gtk::RELIEF_NONE); + pIcon->show(); + pButton->add(*pIcon); + pButton->show(); + pButton->signal_clicked().connect(sigc::mem_fun(*this, &OriginalPathArrayParam::on_up_button_click)); + hbox->pack_end(*pButton, Gtk::PACK_SHRINK); + pButton->set_tooltip_text(_("Move Up")); + } + + vbox->pack_end(*hbox, Gtk::PACK_SHRINK); + + vbox->show_all_children(true); + + return vbox; +} + +bool OriginalPathArrayParam::_selectIndex(const Gtk::TreeIter& iter, int* i) +{ + if ((*i)-- <= 0) { + _tree.get_selection()->select(iter); + return true; + } + return false; +} + +void OriginalPathArrayParam::on_up_button_click() +{ + Gtk::TreeModel::iterator iter = _tree.get_selection()->get_selected(); + if (iter) { + Gtk::TreeModel::Row row = *iter; + + int i = -1; + std::vector<PathAndDirection*>::iterator piter = _vector.begin(); + for (std::vector<PathAndDirection*>::iterator iter = _vector.begin(); iter != _vector.end(); piter = iter, i++, iter++) { + if (*iter == row[_model->_colObject]) { + _vector.erase(iter); + _vector.insert(piter, row[_model->_colObject]); + break; + } + } + + gchar * full = param_getSVGValue(); + param_write_to_repr(full); + g_free(full); + + DocumentUndo::done(param_effect->getSPDoc(), SP_VERB_DIALOG_LIVE_PATH_EFFECT, + _("Move path up")); + + _store->foreach_iter(sigc::bind<int*>(sigc::mem_fun(*this, &OriginalPathArrayParam::_selectIndex), &i)); + } +} + +void OriginalPathArrayParam::on_down_button_click() +{ + Gtk::TreeModel::iterator iter = _tree.get_selection()->get_selected(); + if (iter) { + Gtk::TreeModel::Row row = *iter; + + int i = 0; + for (std::vector<PathAndDirection*>::iterator iter = _vector.begin(); iter != _vector.end(); i++, iter++) { + if (*iter == row[_model->_colObject]) { + std::vector<PathAndDirection*>::iterator niter = _vector.erase(iter); + if (niter != _vector.end()) { + niter++; + i++; + } + _vector.insert(niter, row[_model->_colObject]); + break; + } + } + + gchar * full = param_getSVGValue(); + param_write_to_repr(full); + g_free(full); + + DocumentUndo::done(param_effect->getSPDoc(), SP_VERB_DIALOG_LIVE_PATH_EFFECT, + _("Move path down")); + + _store->foreach_iter(sigc::bind<int*>(sigc::mem_fun(*this, &OriginalPathArrayParam::_selectIndex), &i)); + } +} + +void OriginalPathArrayParam::on_remove_button_click() +{ + Gtk::TreeModel::iterator iter = _tree.get_selection()->get_selected(); + if (iter) { + Gtk::TreeModel::Row row = *iter; + remove_link(row[_model->_colObject]); + + gchar * full = param_getSVGValue(); + param_write_to_repr(full); + g_free(full); + + DocumentUndo::done(param_effect->getSPDoc(), SP_VERB_DIALOG_LIVE_PATH_EFFECT, + _("Remove path")); + } + +} + +void +OriginalPathArrayParam::on_link_button_click() +{ + Inkscape::UI::ClipboardManager *cm = Inkscape::UI::ClipboardManager::get(); + Glib::ustring pathid = cm->getShapeOrTextObjectId(SP_ACTIVE_DESKTOP); + + if (pathid == "") { + return; + } + // add '#' at start to make it an uri. + pathid.insert(pathid.begin(), '#'); + + Inkscape::SVGOStringStream os; + bool foundOne = false; + for (std::vector<PathAndDirection*>::const_iterator iter = _vector.begin(); iter != _vector.end(); iter++) { + if (foundOne) { + os << "|"; + } else { + foundOne = true; + } + os << (*iter)->href << "," << ((*iter)->reversed ? "1" : "0"); + } + + if (foundOne) { + os << "|"; + } + + os << pathid.c_str() << ",0"; + + param_write_to_repr(os.str().c_str()); + DocumentUndo::done(param_effect->getSPDoc(), SP_VERB_DIALOG_LIVE_PATH_EFFECT, + _("Link path parameter to path")); +} + +void OriginalPathArrayParam::unlink(PathAndDirection* to) +{ + to->linked_modified_connection.disconnect(); + to->linked_delete_connection.disconnect(); + to->ref.detach(); + to->_pathvector = Geom::PathVector(); + if (to->href) { + g_free(to->href); + to->href = NULL; + } +} + +void OriginalPathArrayParam::remove_link(PathAndDirection* to) +{ + unlink(to); + for (std::vector<PathAndDirection*>::iterator iter = _vector.begin(); iter != _vector.end(); iter++) { + if (*iter == to) { + PathAndDirection *w = *iter; + _vector.erase(iter); + delete w; + return; + } + } +} + +void OriginalPathArrayParam::linked_delete(SPObject */*deleted*/, PathAndDirection* to) +{ + //remove_link(to); + + gchar * full = param_getSVGValue(); + param_write_to_repr(full); + g_free(full); +} + +bool OriginalPathArrayParam::_updateLink(const Gtk::TreeIter& iter, PathAndDirection* pd) +{ + Gtk::TreeModel::Row row = *iter; + if (row[_model->_colObject] == pd) { + SPObject *obj = pd->ref.getObject(); + row[_model->_colLabel] = obj && obj->getId() ? ( obj->label() ? obj->label() : obj->getId() ) : pd->href; + return true; + } + return false; +} + +void OriginalPathArrayParam::linked_changed(SPObject */*old_obj*/, SPObject *new_obj, PathAndDirection* to) +{ + to->linked_delete_connection.disconnect(); + to->linked_modified_connection.disconnect(); + to->linked_transformed_connection.disconnect(); + + if (new_obj && SP_IS_ITEM(new_obj)) { + to->linked_delete_connection = new_obj->connectDelete(sigc::bind<PathAndDirection*>(sigc::mem_fun(*this, &OriginalPathArrayParam::linked_delete), to)); + to->linked_modified_connection = new_obj->connectModified(sigc::bind<PathAndDirection*>(sigc::mem_fun(*this, &OriginalPathArrayParam::linked_modified), to)); + to->linked_transformed_connection = SP_ITEM(new_obj)->connectTransformed(sigc::bind<PathAndDirection*>(sigc::mem_fun(*this, &OriginalPathArrayParam::linked_transformed), to)); + + linked_modified(new_obj, SP_OBJECT_MODIFIED_FLAG, to); + } else { + to->_pathvector = Geom::PathVector(); + SP_OBJECT(param_effect->getLPEObj())->requestModified(SP_OBJECT_MODIFIED_FLAG); + _store->foreach_iter(sigc::bind<PathAndDirection*>(sigc::mem_fun(*this, &OriginalPathArrayParam::_updateLink), to)); + } +} + +void OriginalPathArrayParam::linked_transformed(Geom::Affine const *mp, SPItem* original, PathAndDirection* to) +{ + +} + +void OriginalPathArrayParam::setPathVector(SPObject *linked_obj, guint flags, PathAndDirection* to) +{ + if (!to) { + return; + } + SPCurve *curve = NULL; + if (SP_IS_SHAPE(linked_obj)) { + curve = SP_SHAPE(linked_obj)->getCurveBeforeLPE(); + } + if (SP_IS_TEXT(linked_obj)) { + curve = SP_TEXT(linked_obj)->getNormalizedBpath(); + } + + if (curve == NULL) { + // curve invalid, set empty pathvector + to->_pathvector = Geom::PathVector(); + } else { + to->_pathvector = curve->get_pathvector(); + curve->unref(); + } +} + +void OriginalPathArrayParam::linked_modified(SPObject *linked_obj, guint flags, PathAndDirection* to) +{ + if (!to) { + return; + } + setPathVector(linked_obj, flags, to); + SP_OBJECT(param_effect->getLPEObj())->requestModified(SP_OBJECT_MODIFIED_FLAG); + _store->foreach_iter(sigc::bind<PathAndDirection*>(sigc::mem_fun(*this, &OriginalPathArrayParam::_updateLink), to)); +} + +//void PathParam::linked_transformed(Geom::Affine const *rel_transf, SPItem *moved_item) +//{ +// linked_transformed_callback(rel_transf, moved_item); +//} + +bool OriginalPathArrayParam::param_readSVGValue(const gchar* strvalue) +{ + if (strvalue) { + while (!_vector.empty()) { + PathAndDirection *w = _vector.back(); + unlink(w); + _vector.pop_back(); + delete w; + } + _store->clear(); + + gchar ** strarray = g_strsplit(strvalue, "|", 0); + for (gchar ** iter = strarray; *iter != NULL; iter++) { + if ((*iter)[0] == '#') { + gchar ** substrarray = g_strsplit(*iter, ",", 0); + PathAndDirection* w = new PathAndDirection((SPObject *)param_effect->getLPEObj()); + w->href = g_strdup(*substrarray); + w->reversed = *(substrarray+1) != NULL && (*(substrarray+1))[0] == '1'; + + w->linked_changed_connection = w->ref.changedSignal().connect(sigc::bind<PathAndDirection *>(sigc::mem_fun(*this, &OriginalPathArrayParam::linked_changed), w)); + w->ref.attach(URI(w->href)); + + _vector.push_back(w); + + Gtk::TreeModel::iterator iter = _store->append(); + Gtk::TreeModel::Row row = *iter; + SPObject *obj = w->ref.getObject(); + + row[_model->_colObject] = w; + row[_model->_colLabel] = obj ? ( obj->label() ? obj->label() : obj->getId() ) : w->href; + row[_model->_colReverse] = w->reversed; + g_strfreev (substrarray); + } + } + g_strfreev (strarray); + return true; + } + return false; +} + +gchar * OriginalPathArrayParam::param_getSVGValue() const +{ + Inkscape::SVGOStringStream os; + bool foundOne = false; + for (std::vector<PathAndDirection*>::const_iterator iter = _vector.begin(); iter != _vector.end(); iter++) { + if (foundOne) { + os << "|"; + } else { + foundOne = true; + } + os << (*iter)->href << "," << ((*iter)->reversed ? "1" : "0"); + } + gchar * str = g_strdup(os.str().c_str()); + return str; +} + +} /* namespace LivePathEffect */ + +} /* namespace Inkscape */ + +/* + Local Variables: + mode:c++ + c-file-style:"stroustrup" + c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +)) + indent-tabs-mode:nil + fill-column:99 + End: +*/ +// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4 : diff --git a/src/live_effects/parameter/originalpatharray.h b/src/live_effects/parameter/originalpatharray.h new file mode 100644 index 000000000..865a3f8e5 --- /dev/null +++ b/src/live_effects/parameter/originalpatharray.h @@ -0,0 +1,123 @@ +#ifndef INKSCAPE_LIVEPATHEFFECT_PARAMETER_ORIGINALPATHARRAY_H +#define INKSCAPE_LIVEPATHEFFECT_PARAMETER_ORIGINALPATHARRAY_H + +/* + * Inkscape::LivePathEffectParameters + * +* Copyright (C) Johan Engelen 2008 <j.b.c.engelen@utwente.nl> + * + * Released under GNU GPL, read the file 'COPYING' for more information + */ + +#include <vector> + +#include <gtkmm/box.h> +#include <gtkmm/treeview.h> +#include <gtkmm/treestore.h> +#include <gtkmm/scrolledwindow.h> + +#include "live_effects/parameter/parameter.h" +#include "live_effects/parameter/path-reference.h" + +#include "svg/svg.h" +#include "svg/stringstream.h" +#include "path-reference.h" +#include "sp-object.h" + +namespace Inkscape { + +namespace LivePathEffect { + +class PathAndDirection { +public: + PathAndDirection(SPObject *owner) + : href(NULL), + ref(owner), + _pathvector(Geom::PathVector()), + reversed(false) + { + + } + gchar *href; + URIReference ref; + //SPItem *obj; + std::vector<Geom::Path> _pathvector; + bool reversed; + + sigc::connection linked_changed_connection; + sigc::connection linked_delete_connection; + sigc::connection linked_modified_connection; + sigc::connection linked_transformed_connection; +}; + +class OriginalPathArrayParam : public Parameter { +public: + class ModelColumns; + + OriginalPathArrayParam( const Glib::ustring& label, + const Glib::ustring& tip, + const Glib::ustring& key, + Inkscape::UI::Widget::Registry* wr, + Effect* effect); + + virtual ~OriginalPathArrayParam(); + + virtual Gtk::Widget * param_newWidget(); + virtual bool param_readSVGValue(const gchar * strvalue); + virtual gchar * param_getSVGValue() const; + virtual void param_set_default(); + + /** Disable the canvas indicators of parent class by overriding this method */ + virtual void param_editOncanvas(SPItem * /*item*/, SPDesktop * /*dt*/) {}; + /** Disable the canvas indicators of parent class by overriding this method */ + virtual void addCanvasIndicators(SPLPEItem const* /*lpeitem*/, std::vector<Geom::PathVector> & /*hp_vec*/) {}; + + std::vector<PathAndDirection*> _vector; + +protected: + bool _updateLink(const Gtk::TreeIter& iter, PathAndDirection* pd); + bool _selectIndex(const Gtk::TreeIter& iter, int* i); + void unlink(PathAndDirection* to); + void remove_link(PathAndDirection* to); + void setPathVector(SPObject *linked_obj, guint flags, PathAndDirection* to); + + void linked_changed(SPObject *old_obj, SPObject *new_obj, PathAndDirection* to); + void linked_modified(SPObject *linked_obj, guint flags, PathAndDirection* to); + void linked_transformed(Geom::Affine const *mp, SPItem *original, PathAndDirection* to); + void linked_delete(SPObject *deleted, PathAndDirection* to); + + ModelColumns *_model; + Glib::RefPtr<Gtk::TreeStore> _store; + Gtk::TreeView _tree; + Gtk::CellRendererText *_text_renderer; + Gtk::CellRendererToggle *_toggle_renderer; + Gtk::TreeView::Column *_name_column; + Gtk::ScrolledWindow _scroller; + + void on_link_button_click(); + void on_remove_button_click(); + void on_up_button_click(); + void on_down_button_click(); + void on_reverse_toggled(const Glib::ustring& path); + +private: + OriginalPathArrayParam(const OriginalPathArrayParam&); + OriginalPathArrayParam& operator=(const OriginalPathArrayParam&); +}; + +} //namespace LivePathEffect + +} //namespace Inkscape + +#endif + +/* + Local Variables: + mode:c++ + c-file-style:"stroustrup" + c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +)) + indent-tabs-mode:nil + fill-column:99 + End: +*/ +// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4 : diff --git a/src/live_effects/parameter/powerstrokepointarray.cpp b/src/live_effects/parameter/powerstrokepointarray.cpp index 647986da6..427be8065 100644 --- a/src/live_effects/parameter/powerstrokepointarray.cpp +++ b/src/live_effects/parameter/powerstrokepointarray.cpp @@ -4,8 +4,7 @@ * Released under GNU GPL, read the file 'COPYING' for more information */ -#include <glibmm/i18n.h> - +#include "ui/dialog/lpe-powerstroke-properties.h" #include "live_effects/parameter/powerstrokepointarray.h" #include "live_effects/effect.h" @@ -21,6 +20,8 @@ #include "desktop.h" #include "live_effects/lpeobject.h" +#include <glibmm/i18n.h> + namespace Inkscape { namespace LivePathEffect { @@ -102,6 +103,23 @@ PowerStrokePointArrayParam::recalculate_controlpoints_for_new_pwd2(Geom::Piecewi } } +float PowerStrokePointArrayParam::median_width() +{ + size_t size = _vector.size(); + if (size > 0) + { + if (size % 2 == 0) + { + return (_vector[size / 2 - 1].y() + _vector[size / 2].y()) / 2; + } + else + { + return _vector[size / 2].y(); + } + } + return 1; +} + void PowerStrokePointArrayParam::set_pwd2(Geom::Piecewise<Geom::D2<Geom::SBasis> > const & pwd2_in, Geom::Piecewise<Geom::D2<Geom::SBasis> > const & pwd2_normal_in) { @@ -117,7 +135,7 @@ PowerStrokePointArrayParam::set_oncanvas_looks(SPKnotShapeType shape, SPKnotMode knot_mode = mode; knot_color = color; } - +/* class PowerStrokePointArrayParamKnotHolderEntity : public KnotHolderEntity { public: PowerStrokePointArrayParamKnotHolderEntity(PowerStrokePointArrayParam *p, unsigned int index); @@ -127,7 +145,7 @@ public: virtual Geom::Point knot_get() const; virtual void knot_click(guint state); - /** Checks whether the index falls within the size of the parameter's vector */ + // Checks whether the index falls within the size of the parameter's vector bool valid_index(unsigned int index) const { return (_pparam->_vector.size() > index); }; @@ -135,7 +153,7 @@ public: private: PowerStrokePointArrayParam *_pparam; unsigned int _index; -}; +};*/ PowerStrokePointArrayParamKnotHolderEntity::PowerStrokePointArrayParamKnotHolderEntity(PowerStrokePointArrayParam *p, unsigned int index) : _pparam(p), @@ -184,6 +202,12 @@ PowerStrokePointArrayParamKnotHolderEntity::knot_get() const return canvas_point; } +void PowerStrokePointArrayParamKnotHolderEntity::knot_set_offset(Geom::Point offset) +{ + _pparam->_vector.at(_index) = Geom::Point(offset.x(), offset.y() / 2); + this->parent_holder->knot_ungrabbed_handler(this->knot, 0); +} + void PowerStrokePointArrayParamKnotHolderEntity::knot_click(guint state) { @@ -226,10 +250,15 @@ PowerStrokePointArrayParamKnotHolderEntity::knot_click(guint state) // add knot to knotholder PowerStrokePointArrayParamKnotHolderEntity *e = new PowerStrokePointArrayParamKnotHolderEntity(_pparam, _index+1); e->create( this->desktop, this->item, parent_holder, Inkscape::CTRL_TYPE_UNKNOWN, - _("<b>Stroke width control point</b>: drag to alter the stroke width. <b>Ctrl+click</b> adds a control point, <b>Ctrl+Alt+click</b> deletes it."), + _("<b>Stroke width control point</b>: drag to alter the stroke width. <b>Ctrl+click</b> adds a control point, <b>Ctrl+Alt+click</b> deletes it, <b>Shift+click</b> launches width dialog."), _pparam->knot_shape, _pparam->knot_mode, _pparam->knot_color); parent_holder->add(e); } + } + else if ((state & GDK_MOD1_MASK) || (state & GDK_SHIFT_MASK)) + { + Geom::Point offset = Geom::Point(_pparam->_vector.at(_index).x(), _pparam->_vector.at(_index).y() * 2); + Inkscape::UI::Dialogs::PowerstrokePropertiesDialog::showDialog(this->desktop, offset, this); } } @@ -238,7 +267,7 @@ void PowerStrokePointArrayParam::addKnotHolderEntities(KnotHolder *knotholder, S for (unsigned int i = 0; i < _vector.size(); ++i) { PowerStrokePointArrayParamKnotHolderEntity *e = new PowerStrokePointArrayParamKnotHolderEntity(this, i); e->create( desktop, item, knotholder, Inkscape::CTRL_TYPE_UNKNOWN, - _("<b>Stroke width control point</b>: drag to alter the stroke width. <b>Ctrl+click</b> adds a control point, <b>Ctrl+Alt+click</b> deletes it."), + _("<b>Stroke width control point</b>: drag to alter the stroke width. <b>Ctrl+click</b> adds a control point, <b>Ctrl+Alt+click</b> deletes it, <b>Shift+click</b> launches width dialog."), knot_shape, knot_mode, knot_color); knotholder->add(e); } diff --git a/src/live_effects/parameter/powerstrokepointarray.h b/src/live_effects/parameter/powerstrokepointarray.h index e1fa440f2..911bbc82d 100644 --- a/src/live_effects/parameter/powerstrokepointarray.h +++ b/src/live_effects/parameter/powerstrokepointarray.h @@ -20,8 +20,6 @@ namespace Inkscape { namespace LivePathEffect { -class PowerStrokePointArrayParamKnotHolderEntity; - class PowerStrokePointArrayParam : public ArrayParam<Geom::Point> { public: PowerStrokePointArrayParam( const Glib::ustring& label, @@ -37,6 +35,8 @@ public: void set_oncanvas_looks(SPKnotShapeType shape, SPKnotModeType mode, guint32 color); + float median_width(); + virtual bool providesKnotHolderEntities() const { return true; } virtual void addKnotHolderEntities(KnotHolder *knotholder, SPDesktop *desktop, SPItem *item); @@ -60,6 +60,25 @@ private: Geom::Piecewise<Geom::D2<Geom::SBasis> > last_pwd2_normal; }; +class PowerStrokePointArrayParamKnotHolderEntity : public KnotHolderEntity { +public: + PowerStrokePointArrayParamKnotHolderEntity(PowerStrokePointArrayParam *p, unsigned int index); + virtual ~PowerStrokePointArrayParamKnotHolderEntity() {} + + virtual void knot_set(Geom::Point const &p, Geom::Point const &origin, guint state); + virtual Geom::Point knot_get() const; + virtual void knot_set_offset(Geom::Point offset); + virtual void knot_click(guint state); + + /** Checks whether the index falls within the size of the parameter's vector */ + bool valid_index(unsigned int index) const { + return (_pparam->_vector.size() > index); + }; + +private: + PowerStrokePointArrayParam *_pparam; + unsigned int _index; +}; } //namespace LivePathEffect diff --git a/src/live_effects/parameter/transformedpoint.cpp b/src/live_effects/parameter/transformedpoint.cpp new file mode 100644 index 000000000..0d03432c3 --- /dev/null +++ b/src/live_effects/parameter/transformedpoint.cpp @@ -0,0 +1,182 @@ +/* + * Copyright (C) Theodore Janeczko 2012 <flutterguy317@gmail.com> + * + * Released under GNU GPL, read the file 'COPYING' for more information + */ + +#include "ui/widget/registered-widget.h" +#include "live_effects/parameter/transformedpoint.h" +#include "sp-lpe-item.h" +#include "knotholder.h" +#include "svg/svg.h" +#include "svg/stringstream.h" + +#include "live_effects/effect.h" +#include "desktop.h" +#include "verbs.h" + +#include <glibmm/i18n.h> + +namespace Inkscape { + +namespace LivePathEffect { + +TransformedPointParam::TransformedPointParam( const Glib::ustring& label, const Glib::ustring& tip, + const Glib::ustring& key, Inkscape::UI::Widget::Registry* wr, + Effect* effect, Geom::Point default_vector, + bool dontTransform) + : Parameter(label, tip, key, wr, effect), + defvalue(default_vector), + origin(0.,0.), + vector(default_vector), + noTransform(dontTransform) +{ + vec_knot_shape = SP_KNOT_SHAPE_DIAMOND; + vec_knot_mode = SP_KNOT_MODE_XOR; + vec_knot_color = 0xffffb500; +} + +TransformedPointParam::~TransformedPointParam() +{ + +} + +void +TransformedPointParam::param_set_default() +{ + setOrigin(Geom::Point(0.,0.)); + setVector(defvalue); +} + +bool +TransformedPointParam::param_readSVGValue(const gchar * strvalue) +{ + gchar ** strarray = g_strsplit(strvalue, ",", 4); + if (!strarray) { + return false; + } + double val[4]; + unsigned int i = 0; + while (i < 4 && strarray[i]) { + if (sp_svg_number_read_d(strarray[i], &val[i]) != 0) { + i++; + } else { + break; + } + } + g_strfreev (strarray); + if (i == 4) { + setOrigin( Geom::Point(val[0], val[1]) ); + setVector( Geom::Point(val[2], val[3]) ); + return true; + } + return false; +} + +gchar * +TransformedPointParam::param_getSVGValue() const +{ + Inkscape::SVGOStringStream os; + os << origin << " , " << vector; + gchar * str = g_strdup(os.str().c_str()); + return str; +} + +Gtk::Widget * +TransformedPointParam::param_newWidget() +{ + Inkscape::UI::Widget::RegisteredVector * pointwdg = Gtk::manage( + new Inkscape::UI::Widget::RegisteredVector( param_label, + param_tooltip, + param_key, + *param_wr, + param_effect->getRepr(), + param_effect->getSPDoc() ) ); + pointwdg->setPolarCoords(); + pointwdg->setValue( vector, origin ); + pointwdg->clearProgrammatically(); + pointwdg->set_undo_parameters(SP_VERB_DIALOG_LIVE_PATH_EFFECT, _("Change vector parameter")); + + Gtk::HBox * hbox = Gtk::manage( new Gtk::HBox() ); + static_cast<Gtk::HBox*>(hbox)->pack_start(*pointwdg, true, true); + static_cast<Gtk::HBox*>(hbox)->show_all_children(); + + return dynamic_cast<Gtk::Widget *> (hbox); +} + +void +TransformedPointParam::set_and_write_new_values(Geom::Point const &new_origin, Geom::Point const &new_vector) +{ + setValues(new_origin, new_vector); + gchar * str = param_getSVGValue(); + param_write_to_repr(str); + g_free(str); +} + +void +TransformedPointParam::param_transform_multiply(Geom::Affine const& postmul, bool /*set*/) +{ + if (!noTransform) { + set_and_write_new_values( origin * postmul, vector * postmul.withoutTranslation() ); + } +} + + +void +TransformedPointParam::set_vector_oncanvas_looks(SPKnotShapeType shape, SPKnotModeType mode, guint32 color) +{ + vec_knot_shape = shape; + vec_knot_mode = mode; + vec_knot_color = color; +} + +void +TransformedPointParam::set_oncanvas_color(guint32 color) +{ + vec_knot_color = color; +} + +class TransformedPointParamKnotHolderEntity_Vector : public KnotHolderEntity { +public: + TransformedPointParamKnotHolderEntity_Vector(TransformedPointParam *p) : param(p) { } + virtual ~TransformedPointParamKnotHolderEntity_Vector() {} + + virtual void knot_set(Geom::Point const &p, Geom::Point const &/*origin*/, guint /*state*/) { + Geom::Point const s = p - param->origin; + /// @todo implement angle snapping when holding CTRL + param->setVector(s); + sp_lpe_item_update_patheffect(SP_LPE_ITEM(item), false, false); + }; + virtual Geom::Point knot_get() const{ + return param->origin + param->vector; + }; + virtual void knot_click(guint /*state*/){ + g_print ("This is the vector handle associated to parameter '%s'\n", param->param_key.c_str()); + }; + +private: + TransformedPointParam *param; +}; + +void +TransformedPointParam::addKnotHolderEntities(KnotHolder *knotholder, SPDesktop *desktop, SPItem *item) +{ + TransformedPointParamKnotHolderEntity_Vector *vector_e = new TransformedPointParamKnotHolderEntity_Vector(this); + vector_e->create(desktop, item, knotholder, Inkscape::CTRL_TYPE_UNKNOWN, handleTip(), vec_knot_shape, vec_knot_mode, vec_knot_color); + knotholder->add(vector_e); +} + +} /* namespace LivePathEffect */ + +} /* namespace Inkscape */ + +/* + Local Variables: + mode:c++ + c-file-style:"stroustrup" + c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +)) + indent-tabs-mode:nil + fill-column:99 + End: +*/ +// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4 : diff --git a/src/live_effects/parameter/transformedpoint.h b/src/live_effects/parameter/transformedpoint.h new file mode 100644 index 000000000..37af8b98f --- /dev/null +++ b/src/live_effects/parameter/transformedpoint.h @@ -0,0 +1,87 @@ +#ifndef INKSCAPE_LIVEPATHEFFECT_PARAMETER_TRANSFORMED_POINT_H +#define INKSCAPE_LIVEPATHEFFECT_PARAMETER_TRANSFORMED_POINT_H + +/* + * Inkscape::LivePathEffectParameters + * + * Copyright (C) Theodore Janeczko 2012 <flutterguy317@gmail.com> + * + * Released under GNU GPL, read the file 'COPYING' for more information + */ + +#include <glib.h> +#include <2geom/point.h> + +#include "live_effects/parameter/parameter.h" + +#include "knot-holder-entity.h" + +namespace Inkscape { + +namespace LivePathEffect { + + +class TransformedPointParam : public Parameter { +public: + TransformedPointParam( const Glib::ustring& label, + const Glib::ustring& tip, + const Glib::ustring& key, + Inkscape::UI::Widget::Registry* wr, + Effect* effect, + Geom::Point default_vector = Geom::Point(1,0), + bool dontTransform = false); + virtual ~TransformedPointParam(); + + virtual Gtk::Widget * param_newWidget(); + inline const gchar *handleTip() const { return param_tooltip.c_str(); } + + virtual bool param_readSVGValue(const gchar * strvalue); + virtual gchar * param_getSVGValue() const; + + Geom::Point getVector() const { return vector; }; + Geom::Point getOrigin() const { return origin; }; + void setValues(Geom::Point const &new_origin, Geom::Point const &new_vector) { setVector(new_vector); setOrigin(new_origin); }; + void setVector(Geom::Point const &new_vector) { vector = new_vector; }; + void setOrigin(Geom::Point const &new_origin) { origin = new_origin; }; + virtual void param_set_default(); + + void set_and_write_new_values(Geom::Point const &new_origin, Geom::Point const &new_vector); + + virtual void param_transform_multiply(Geom::Affine const &postmul, bool set); + + void set_vector_oncanvas_looks(SPKnotShapeType shape, SPKnotModeType mode, guint32 color); + //void set_origin_oncanvas_looks(SPKnotShapeType shape, SPKnotModeType mode, guint32 color); + void set_oncanvas_color(guint32 color); + + virtual bool providesKnotHolderEntities() const { return true; } + virtual void addKnotHolderEntities(KnotHolder *knotholder, SPDesktop *desktop, SPItem *item); + +private: + TransformedPointParam(const TransformedPointParam&); + TransformedPointParam& operator=(const TransformedPointParam&); + + Geom::Point defvalue; + + Geom::Point origin; + Geom::Point vector; + + bool noTransform; + + /// The looks of the vector and origin knots oncanvas + SPKnotShapeType vec_knot_shape; + SPKnotModeType vec_knot_mode; + guint32 vec_knot_color; +// SPKnotShapeType ori_knot_shape; +// SPKnotModeType ori_knot_mode; +// guint32 ori_knot_color; + +// friend class VectorParamKnotHolderEntity_Origin; + friend class TransformedPointParamKnotHolderEntity_Vector; +}; + + +} //namespace LivePathEffect + +} //namespace Inkscape + +#endif diff --git a/src/live_effects/pathoutlineprovider.cpp b/src/live_effects/pathoutlineprovider.cpp new file mode 100644 index 000000000..482f1f5e0 --- /dev/null +++ b/src/live_effects/pathoutlineprovider.cpp @@ -0,0 +1,795 @@ +#include <glib.h> //g_critical
+
+#include "pathoutlineprovider.h"
+#include "livarot/path-description.h"
+#include <2geom/angle.h>
+#include <2geom/path.h>
+#include <2geom/circle.h>
+#include <2geom/sbasis-to-bezier.h>
+#include <2geom/shape.h>
+#include <2geom/transforms.h>
+#include <2geom/path-sink.h>
+#include "helper/geom-nodetype.h"
+#include <svg/svg.h>
+
+namespace Geom {
+/**
+* Refer to: Weisstein, Eric W. "Circle-Circle Intersection."
+ From MathWorld--A Wolfram Web Resource.
+ http://mathworld.wolfram.com/Circle-CircleIntersection.html
+*
+* @return 0 if no intersection
+* @return 1 if one circle is contained in the other
+* @return 2 if intersections are found (they are written to p0 and p1)
+*/
+static int circle_circle_intersection(Circle const &circle0, Circle const &circle1,
+ Point & p0, Point & p1)
+{
+ Point X0 = circle0.center();
+ double r0 = circle0.ray();
+ Point X1 = circle1.center();
+ double r1 = circle1.ray();
+
+ /* dx and dy are the vertical and horizontal distances between
+ * the circle centers.
+ */
+ Point D = X1 - X0;
+
+ /* Determine the straight-line distance between the centers. */
+ double d = L2(D);
+
+ /* Check for solvability. */
+ if (d > (r0 + r1)) {
+ /* no solution. circles do not intersect. */
+ return 0;
+ }
+ if (d <= fabs(r0 - r1)) {
+ /* no solution. one circle is contained in the other */
+ return 1;
+ }
+
+ /* 'point 2' is the point where the line through the circle
+ * intersection points crosses the line between the circle
+ * centers.
+ */
+
+ /* Determine the distance from point 0 to point 2. */
+ double a = ((r0*r0) - (r1*r1) + (d*d)) / (2.0 * d) ;
+
+ /* Determine the coordinates of point 2. */
+ Point p2 = X0 + D * (a/d);
+
+ /* Determine the distance from point 2 to either of the
+ * intersection points.
+ */
+ double h = std::sqrt((r0*r0) - (a*a));
+
+ /* Now determine the offsets of the intersection points from
+ * point 2.
+ */
+ Point r = (h/d)*rot90(D);
+
+ /* Determine the absolute intersection points. */
+ p0 = p2 + r;
+ p1 = p2 - r;
+
+ return 2;
+}
+/**
+* Find circle that touches inside of the curve, with radius matching the curvature, at time value \c t.
+* Because this method internally uses unitTangentAt, t should be smaller than 1.0 (see unitTangentAt).
+*/
+static Circle touching_circle( D2<SBasis> const &curve, double t, double tol=0.01 )
+{
+ D2<SBasis> dM=derivative(curve);
+ if ( are_near(L2sq(dM(t)),0.) ) {
+ dM=derivative(dM);
+ }
+ if ( are_near(L2sq(dM(t)),0.) ) { // try second time
+ dM=derivative(dM);
+ }
+ Piecewise<D2<SBasis> > unitv = unitVector(dM,tol);
+ Piecewise<SBasis> dMlength = dot(Piecewise<D2<SBasis> >(dM),unitv);
+ Piecewise<SBasis> k = cross(derivative(unitv),unitv);
+ k = divide(k,dMlength,tol,3);
+ double curv = k(t); // note that this value is signed
+
+ Geom::Point normal = unitTangentAt(curve, t).cw();
+ double radius = 1/curv;
+ Geom::Point center = curve(t) + radius*normal;
+ return Geom::Circle(center, fabs(radius));
+}
+
+std::vector<Geom::Path> split_at_cusps(const Geom::Path& in)
+{
+ PathVector out = PathVector();
+ Path temp = Path();
+
+ for (unsigned i = 0; i < in.size(); i++) {
+ temp.append(in[i]);
+ if ( get_nodetype(in[i], in[i + 1]) != Geom::NODE_SMOOTH ) {
+ out.push_back(temp);
+ temp = Path();
+ }
+ }
+ if (temp.size() > 0) {
+ out.push_back(temp);
+ }
+ return out;
+}
+
+Geom::CubicBezier sbasis_to_cubicbezier(Geom::D2<Geom::SBasis> const & sbasis_in)
+{
+ std::vector<Geom::Point> temp;
+ sbasis_to_bezier(temp, sbasis_in, 4);
+ return Geom::CubicBezier( temp );
+}
+
+static boost::optional<Geom::Point> intersection_point(Geom::Point const & origin_a, Geom::Point const & vector_a, Geom::Point const & origin_b, Geom::Point const & vector_b)
+{
+ Geom::Coord denom = cross(vector_b, vector_a);
+ if (!Geom::are_near(denom,0.)) {
+ Geom::Coord t = (cross(origin_a,vector_b) + cross(vector_b,origin_b)) / denom;
+ return origin_a + t * vector_a;
+ }
+ return boost::none;
+}
+
+} // namespace Geom
+
+namespace Outline {
+
+typedef Geom::D2<Geom::SBasis> D2SB;
+typedef Geom::Piecewise<D2SB> PWD2;
+
+// UTILITY
+
+unsigned bezierOrder (const Geom::Curve* curve_in)
+{
+ using namespace Geom;
+ if ( const BezierCurve* bz = dynamic_cast<const BezierCurve*>(curve_in) ) {
+ return bz->order();
+ }
+ return 0;
+}
+
+/**
+ * @return true if the angle formed by the curves and their handles is greater than 180 degrees clockwise, otherwise false.
+ */
+bool outside_angle (const Geom::Curve& cbc1, const Geom::Curve& cbc2)
+{
+ Geom::Point start_point;
+ Geom::Point cross_point = cbc1.finalPoint();
+ Geom::Point end_point;
+
+ if (cross_point != cbc2.initialPoint()) {
+ g_warning("Non-contiguous path in Outline::outside_angle()");
+ return false;
+ }
+
+ Geom::CubicBezier cubicBezier = Geom::sbasis_to_cubicbezier(cbc1.toSBasis());
+ start_point = cubicBezier [2];
+
+ /*
+ * Because the node editor does not yet support true quadratics, paths are converted to
+ * cubic beziers in the node tool with degenerate handles on one side.
+ */
+
+ if (are_near(start_point, cross_point, 0.0000001)) {
+ start_point = cubicBezier [1];
+ }
+ cubicBezier = Geom::sbasis_to_cubicbezier(cbc2.toSBasis());
+ end_point = cubicBezier [1];
+ if (are_near(end_point, cross_point, 0.0000001)) {
+ end_point = cubicBezier [2];
+ }
+
+ // got our three points, now let's see what their clockwise angle is
+
+ // Definition of a Graham scan
+
+ /********************************************************************
+ # Three points are a counter-clockwise turn if ccw > 0, clockwise if
+ # ccw < 0, and collinear if ccw = 0 because ccw is a determinant that
+ # gives the signed area of the triangle formed by p1, p2 and p3.
+ function ccw(p1, p2, p3):
+ return (p2.x - p1.x)*(p3.y - p1.y) - (p2.y - p1.y)*(p3.x - p1.x)
+ *********************************************************************/
+
+ double ccw = ( (cross_point.x() - start_point.x()) * (end_point.y() - start_point.y()) ) -
+ ( (cross_point.y() - start_point.y()) * (end_point.x() - start_point.x()) );
+ return ccw > 0;
+}
+
+// LINE JOINS
+
+typedef Geom::BezierCurveN<1u> BezierLine;
+
+/**
+ * Removes the crossings on an interior join.
+ * @param path_builder Contains the incoming segment; result is appended to this
+ * @param outgoing The outgoing segment
+ */
+void joinInside(Geom::Path& path_builder, Geom::Curve const& outgoing) {
+ Geom::Curve const& incoming = path_builder.back();
+
+ // Using Geom::crossings to find intersections between two curves
+ Geom::Crossings cross = Geom::crossings(incoming, outgoing);
+ if (!cross.empty()) {
+ // Crossings found, create the join
+ Geom::CubicBezier cubic = Geom::sbasis_to_cubicbezier(incoming.toSBasis());
+ cubic = cubic.subdivide(cross[0].ta).first;
+ // erase the last segment, as we're going to overwrite it now
+ path_builder.erase_last();
+ path_builder.append(cubic, Geom::Path::STITCH_DISCONTINUOUS);
+
+ cubic = Geom::sbasis_to_cubicbezier(outgoing.toSBasis());
+ cubic = cubic.subdivide(cross[0].tb).second;
+ path_builder.append(cubic, Geom::Path::STITCH_DISCONTINUOUS);
+ } else {
+ // No crossings occurred, or Geom::crossings() failed; default to bevel
+ if (Geom::are_near(incoming.finalPoint(), outgoing.initialPoint())) {
+ path_builder.appendNew<BezierLine>(outgoing.initialPoint());
+ } else {
+ path_builder.setFinal(outgoing.initialPoint());
+ }
+ }
+}
+
+/**
+ * Try to create a miter join. Falls back to bevel if no miter can be created.
+ * @param path_builder Path to append curves to; back() is the incoming curve
+ * @param outgoing Outgoing curve.
+ * @param miter_limit When mitering, don't exceed this length
+ * @param line_width The thickness of the line.
+ */
+void miter_curves(Geom::Path& path_builder, Geom::Curve const& outgoing, double miter_limit, double line_width) {
+ using namespace Geom;
+ Curve const& incoming = path_builder.back();
+ Point tang1 = unitTangentAt(Geom::reverse(incoming.toSBasis()), 0.);
+ Point tang2 = unitTangentAt(outgoing.toSBasis(), 0);
+
+ boost::optional <Point> p = intersection_point (incoming.finalPoint(), tang1, outgoing.initialPoint(), tang2);
+ if (p) {
+ // check size of miter
+ Point point_on_path = incoming.finalPoint() - rot90(tang1) * line_width;
+ Coord len = distance(*p, point_on_path);
+ if (len <= miter_limit) {
+ // miter OK
+ path_builder.appendNew<BezierLine>(*p);
+ }
+ }
+ path_builder.appendNew<BezierLine>(outgoing.initialPoint());
+}
+
+/**
+ * Smoothly extrapolate curves along a circular route. Falls back to miter if necessary.
+ * @param path_builder Path to append curves to; back() is the incoming curve
+ * @param outgoing Outgoing curve.
+ * @param miter_limit When mitering, don't exceed this length
+ * @param line_width The thickness of the line. Used for miter fallback.
+ */
+void extrapolate_curves(Geom::Path& path_builder, Geom::Curve const& outgoing, double miter_limit, double line_width) {
+ Geom::Curve const& incoming = path_builder.back();
+ Geom::Point endPt = outgoing.initialPoint();
+
+ // The method used when extrapolating curves fails to work when either side of the join to be extrapolated
+ // is a line segment. When this situation is encountered, fall back to a regular miter join.
+ bool lineProblem = (dynamic_cast<const BezierLine *>(&incoming)) || (dynamic_cast<const BezierLine *>(&outgoing));
+ if (lineProblem == false) {
+ // Geom::Point tang1 = Geom::unitTangentAt(Geom::reverse(incoming.toSBasis()), 0.);
+ Geom::Point tang2 = Geom::unitTangentAt(outgoing.toSBasis(), 0);
+
+ Geom::Circle circle1 = Geom::touching_circle(Geom::reverse(incoming.toSBasis()), 0.);
+ Geom::Circle circle2 = Geom::touching_circle(outgoing.toSBasis(), 0);
+
+ Geom::Point points[2];
+ int solutions = Geom::circle_circle_intersection(circle1, circle2, points[0], points[1]);
+ if (solutions == 2) {
+ Geom::Point sol(0,0);
+ if ( dot(tang2,points[0]-endPt) > 0 ) {
+ // points[0] is bad, choose points[1]
+ sol = points[1];
+ } else if ( dot(tang2,points[1]-endPt) > 0 ) { // points[0] could be good, now check points[1]
+ // points[1] is bad, choose points[0]
+ sol = points[0];
+ } else {
+ // both points are good, choose nearest
+ sol = ( distanceSq(endPt, points[0]) < distanceSq(endPt, points[1]) ) ? points[0] : points[1];
+ }
+
+ Geom::EllipticalArc *arc0 = circle1.arc(incoming.finalPoint(), 0.5*(incoming.finalPoint()+sol), sol, true);
+ Geom::EllipticalArc *arc1 = circle2.arc(sol, 0.5*(sol+endPt), endPt, true);
+ try {
+ if (arc0) {
+ path_builder.append (arc0->toSBasis());
+ delete arc0;
+ arc0 = NULL;
+ } else {
+ throw std::exception();
+ }
+
+ if (arc1) {
+ path_builder.append (arc1->toSBasis());
+ delete arc1;
+ arc1 = NULL;
+ } else {
+ throw std::exception();
+ }
+
+ } catch (std::exception const & ex) {
+ g_warning("Error extrapolating line join: %s\n", ex.what());
+ path_builder.appendNew<Geom::LineSegment>(endPt);
+ }
+ } else {
+ // 1 or no solutions found, default to miter
+ miter_curves(path_builder, outgoing, miter_limit, line_width);
+ }
+ } else {
+ // Line segments exist
+ miter_curves(path_builder, outgoing, miter_limit, line_width);
+ }
+}
+
+/**
+ * Extrapolate curves by reflecting them along the line that would be given by beveling the join.
+ * @param path_builder Path to append curves to; back() is the incoming curve
+ * @param outgoing Outgoing curve.
+ * @param miter_limit When mitering, don't exceed this length
+ * @param line_width The thickness of the line. Used for miter fallback.
+ */
+void reflect_curves(Geom::Path& path_builder, Geom::Curve const& outgoing, double miter_limit, double line_width)
+{
+ using namespace Geom;
+ Curve const& incoming = path_builder.back();
+ // On the outside, we'll take the incoming curve, the outgoing curve, and
+ // reflect them over the line formed by taking the unit tangent vector at times
+ // 0 and 1, respectively, rotated by 90 degrees.
+ Crossings cross;
+
+ // reflect curves along the line that would be given by beveling the join
+ Point tang1 = unitTangentAt(reverse(incoming.toSBasis()), 0.);
+ D2SB newcurve1 = incoming.toSBasis() * reflection(-rot90(tang1), incoming.finalPoint());
+ CubicBezier bzr1 = sbasis_to_cubicbezier(reverse(newcurve1));
+
+ Point tang2 = Geom::unitTangentAt(outgoing.toSBasis(), 0.);
+ D2SB newcurve2 = outgoing.toSBasis() * reflection(-rot90(tang2), outgoing.initialPoint());
+ CubicBezier bzr2 = sbasis_to_cubicbezier(reverse(newcurve2));
+
+ cross = crossings(bzr1, bzr2);
+ if (cross.empty()) {
+ // paths don't cross, fall back to miter
+ miter_curves(path_builder, outgoing, miter_limit, line_width);
+ } else {
+ // reflected join
+ std::pair<CubicBezier, CubicBezier> sub1 = bzr1.subdivide(cross[0].ta);
+ std::pair<CubicBezier, CubicBezier> sub2 = bzr2.subdivide(cross[0].tb);
+
+ // TODO it seems as if a bug in 2geom sometimes doesn't catch the first
+ // crossing of paths, but the second instead; but only sometimes.
+ path_builder.appendNew <CubicBezier> (sub1.first[1], sub1.first[2], sub2.second[0]);
+ path_builder.appendNew <CubicBezier> (sub2.second[1], sub2.second[2], outgoing.initialPoint());
+ }
+}
+
+// Ideal function pointer we want to pass
+typedef void JoinFunc(Geom::Path& /*path_builder*/, Geom::Curve const& /*outgoing*/, double /*miter_limit*/, double /*line_width*/);
+
+/**
+ * Helper function for repeated logic in outlineHalf.
+ */
+static void outlineHelper(Geom::Path& path_builder, Geom::PathVector* path_vec, bool outside, double width, double miter, JoinFunc func) {
+ Geom::Curve * cbc2 = path_vec->front()[0].duplicate();
+
+ if (outside) {
+ func(path_builder, *cbc2, miter, width);
+ } else {
+ joinInside(path_builder, *cbc2);
+ }
+
+ // store it
+ Geom::Path temp_path = path_vec->front();
+ if (!outside) {
+ // erase the first segment since the inside join code already appended it
+ temp_path.erase(temp_path.begin());
+ }
+
+ if (temp_path.initialPoint() != path_builder.finalPoint()) {
+ temp_path.setInitial(path_builder.finalPoint());
+ }
+
+ path_builder.append(temp_path);
+
+ delete cbc2;
+}
+
+/**
+ * Offsets exactly one half of a bezier spline (path).
+ * @param path_in The input path to use. (To create the other side use path_in.reverse() )
+ * @param line_width the line width to use (usually you want to divide this by 2)
+ * @param miter_limit the miter parameter
+ * @param func Join function to apply at each join.
+ */
+
+Geom::Path outlineHalf(const Geom::Path& path_in, double line_width, double miter_limit, JoinFunc func) {
+ // NOTE: it is important to notice the distinction between a Geom::Path and a livarot ::Path here!
+ // if you do not see "Geom::" there is a different function set!
+
+ Geom::PathVector pv = split_at_cusps(path_in);
+
+ ::Path to_outline;
+ ::Path outlined_result;
+
+ Geom::Path path_builder = Geom::Path(); // the path to store the result in
+ Geom::PathVector* path_vec; // needed because livarot returns a pointer (TODO make this not a pointer)
+
+ // Do two curves at a time for efficiency, since the join function needs to know the outgoing curve as well
+ const size_t k = pv.size();
+ for (size_t u = 0; u < k; u += 2) {
+ to_outline = Path();
+ outlined_result = Path();
+
+ to_outline.LoadPath(pv[u], Geom::identity(), false, false);
+ to_outline.OutsideOutline(&outlined_result, line_width / 2, join_straight, butt_straight, 10);
+ // now a curve has been outside outlined and loaded into outlined_result
+
+ // get the Geom::Path
+ path_vec = outlined_result.MakePathVector();
+
+ // on the first run through, there is no join
+ if (u == 0) {
+ path_builder.start(path_vec->front().initialPoint());
+ path_builder.append(path_vec->front());
+ } else {
+ outlineHelper(path_builder, path_vec, outside_angle(pv[u-1][pv[u-1].size()-1], pv[u][0]), line_width, miter_limit, func);
+ }
+
+ // outline the next segment, but don't store it yet
+ if (path_vec)
+ delete path_vec;
+ path_vec = NULL;
+
+ // odd number of paths
+ if (u < k - 1) {
+ outlined_result = Path();
+ to_outline = Path();
+
+ to_outline.LoadPath(pv[u+1], Geom::Affine(), false, false);
+ to_outline.OutsideOutline(&outlined_result, line_width / 2, join_straight, butt_straight, 10);
+
+ path_vec = outlined_result.MakePathVector();
+ outlineHelper(path_builder, path_vec, outside_angle(pv[u][pv[u].size()-1], pv[u+1][0]), line_width, miter_limit, func);
+
+ if (path_vec)
+ delete path_vec;
+ path_vec = NULL;
+ }
+ }
+
+ if (path_in.closed()) {
+ Geom::Curve * cbc1;
+ Geom::Curve * cbc2;
+
+ if ( path_in[path_in.size()].isDegenerate() ) {
+ // handle case for last segment curved
+ outlined_result = Path();
+ to_outline = Path();
+
+ Geom::Path oneCurve; oneCurve.append(path_in[0]);
+
+ to_outline.LoadPath(oneCurve, Geom::Affine(), false, false);
+ to_outline.OutsideOutline(&outlined_result, line_width / 2, join_straight, butt_straight, 10);
+
+ path_vec = outlined_result.MakePathVector();
+
+ cbc1 = path_builder[path_builder.size() - 1].duplicate();
+ cbc2 = path_vec->front()[0].duplicate();
+
+ delete path_vec;
+ } else {
+ // handle case for last segment straight
+ // since the path doesn't actually give us access to it, we'll do it ourselves
+ outlined_result = Path();
+ to_outline = Path();
+
+ Geom::Path oneCurve; oneCurve.append(Geom::LineSegment(path_in.finalPoint(), path_in.initialPoint()));
+
+ to_outline.LoadPath(oneCurve, Geom::Affine(), false, false);
+ to_outline.OutsideOutline(&outlined_result, line_width / 2, join_straight, butt_straight, 10);
+
+ path_vec = outlined_result.MakePathVector();
+
+ cbc1 = path_builder[path_builder.size() - 1].duplicate();
+ cbc2 = (*path_vec)[0] [0].duplicate();
+
+ outlineHelper(path_builder, path_vec, outside_angle(path_in[path_in.size()-1], oneCurve[0]), line_width, miter_limit, func);
+
+ delete cbc1;
+ cbc1 = cbc2->duplicate();
+ delete path_vec;
+
+ oneCurve = Geom::Path(); oneCurve.append(path_in[0]);
+
+ to_outline.LoadPath(oneCurve, Geom::Affine(), false, false);
+ to_outline.OutsideOutline(&outlined_result, line_width / 2, join_straight, butt_straight, 10);
+
+ path_vec = outlined_result.MakePathVector();
+ delete cbc2; cbc2 = (*path_vec)[0] [0].duplicate();
+ delete path_vec;
+ }
+
+ Geom::Path temporary;
+ temporary.append(*cbc1);
+
+ Geom::Curve const & prev_curve = path_in[path_in.size()].isDegenerate() ? path_in[path_in.size() - 1] : path_in[path_in.size()];
+ Geom::Path isStraight;
+ isStraight.append(prev_curve);
+ isStraight.append(path_in[0]);
+ // does closing path require a join?
+ if (Geom::split_at_cusps(isStraight).size() > 1) {
+ bool outside = outside_angle(prev_curve, path_in[0]);
+ if (outside) {
+ func(temporary, *cbc2, miter_limit, line_width);
+ } else {
+ joinInside(temporary, *cbc2);
+ path_builder.erase(path_builder.begin());
+ }
+
+ // extract the appended curves
+ path_builder.erase_last();
+ if (Geom::are_near(path_builder.finalPoint(), temporary.initialPoint())) {
+ path_builder.setFinal(temporary.initialPoint());
+ } else {
+ path_builder.appendNew<BezierLine>(temporary.initialPoint());
+ }
+ path_builder.append(temporary);
+ } else {
+ // closing path does not require a join
+ path_builder.setFinal(path_builder.initialPoint());
+ }
+ path_builder.close();
+
+ if (cbc1) delete cbc1;
+ if (cbc2) delete cbc2;
+ }
+
+ return path_builder;
+}
+
+Geom::PathVector outlinePath(const Geom::PathVector& path_in, double line_width, LineJoinType join, ButtTypeMod butt, double miter_lim, bool extrapolate, double start_lean, double end_lean)
+{
+ Geom::PathVector path_out;
+
+ unsigned pv_size = path_in.size();
+ for (unsigned i = 0; i < pv_size; i++) {
+
+ if (path_in[i].size() > 1) {
+ Geom::Path with_direction;
+ Geom::Path against_direction;
+
+ with_direction = Outline::outlineHalf(path_in[i], -line_width, miter_lim, extrapolate ? extrapolate_curves : reflect_curves);
+ against_direction = Outline::outlineHalf(path_in[i].reverse(), -line_width, miter_lim, extrapolate ? extrapolate_curves : reflect_curves);
+
+ Geom::PathBuilder pb;
+
+ pb.moveTo(with_direction.initialPoint());
+ pb.append(with_direction);
+
+ //add in our line caps
+ if (!path_in[i].closed()) {
+ switch (butt) {
+ case BUTT_STRAIGHT:
+ pb.lineTo(against_direction.initialPoint());
+ break;
+ case BUTT_ROUND:
+ pb.arcTo((-line_width) / 2, (-line_width) / 2, 0., true, true, against_direction.initialPoint() );
+ break;
+ case BUTT_POINTY: {
+ Geom::Point end_deriv = -Geom::unitTangentAt(Geom::reverse(path_in[i].back().toSBasis()), 0.);
+ double radius = 0.5 * Geom::distance(with_direction.finalPoint(), against_direction.initialPoint());
+ Geom::Point midpoint = 0.5 * (with_direction.finalPoint() + against_direction.initialPoint()) + radius*end_deriv;
+ pb.lineTo(midpoint);
+ pb.lineTo(against_direction.initialPoint());
+ break;
+ }
+ case BUTT_SQUARE: {
+ Geom::Point end_deriv = -Geom::unitTangentAt(Geom::reverse(path_in[i].back().toSBasis()), 0.);
+ double radius = 0.5 * Geom::distance(with_direction.finalPoint(), against_direction.initialPoint());
+ pb.lineTo(with_direction.finalPoint() + radius*end_deriv);
+ pb.lineTo(against_direction.initialPoint() + radius*end_deriv);
+ pb.lineTo(against_direction.initialPoint());
+ break;
+ }
+ case BUTT_LEANED: {
+ Geom::Point end_deriv = -Geom::unitTangentAt(Geom::reverse(path_in[i].back().toSBasis()), 0.);
+ double maxRadius = (end_lean+0.5) * Geom::distance(with_direction.finalPoint(), against_direction.initialPoint());
+ double minRadius = ((end_lean*-1)+0.5) * Geom::distance(with_direction.finalPoint(), against_direction.initialPoint());
+ pb.lineTo(with_direction.finalPoint() + maxRadius*end_deriv);
+ pb.lineTo(against_direction.initialPoint() + minRadius*end_deriv);
+ pb.lineTo(against_direction.initialPoint());
+ break;
+ }
+ }
+ } else {
+ pb.moveTo(against_direction.initialPoint());
+ }
+
+ pb.append(against_direction);
+
+ //cap (if necessary)
+ if (!path_in[i].closed()) {
+ switch (butt) {
+ case BUTT_STRAIGHT:
+ pb.lineTo(with_direction.initialPoint());
+ break;
+ case BUTT_ROUND:
+ pb.arcTo((-line_width) / 2, (-line_width) / 2, 0., true, true, with_direction.initialPoint() );
+ break;
+ case BUTT_POINTY: {
+ Geom::Point end_deriv = -Geom::unitTangentAt(path_in[i].front().toSBasis(), 0.);
+ double radius = 0.5 * Geom::distance(against_direction.finalPoint(), with_direction.initialPoint());
+ Geom::Point midpoint = 0.5 * (against_direction.finalPoint() + with_direction.initialPoint()) + radius*end_deriv;
+ pb.lineTo(midpoint);
+ pb.lineTo(with_direction.initialPoint());
+ break;
+ }
+ case BUTT_SQUARE: {
+ Geom::Point end_deriv = -Geom::unitTangentAt(path_in[i].front().toSBasis(), 0.);
+ double radius = 0.5 * Geom::distance(against_direction.finalPoint(), with_direction.initialPoint());
+ pb.lineTo(against_direction.finalPoint() + radius*end_deriv);
+ pb.lineTo(with_direction.initialPoint() + radius*end_deriv);
+ pb.lineTo(with_direction.initialPoint());
+ break;
+ }
+ case BUTT_LEANED: {
+ Geom::Point end_deriv = -Geom::unitTangentAt(path_in[i].front().toSBasis(), 0.);
+ double maxRadius = (start_lean+0.5) * Geom::distance(against_direction.finalPoint(), with_direction.initialPoint());
+ double minRadius = ((start_lean*-1)+0.5) * Geom::distance(against_direction.finalPoint(), with_direction.initialPoint());
+ pb.lineTo(against_direction.finalPoint() + minRadius*end_deriv);
+ pb.lineTo(with_direction.initialPoint() + maxRadius*end_deriv);
+ pb.lineTo(with_direction.initialPoint());
+ break;
+ }
+ }
+ }
+ pb.flush();
+ path_out.push_back(pb.peek()[0]);
+ if (path_in[i].closed()) {
+ path_out.push_back(pb.peek()[1]);
+ }
+ } else {
+ Path p = Path();
+ Path outlinepath = Path();
+ ButtType original_butt;
+ switch (butt) {
+ case BUTT_STRAIGHT:
+ original_butt = butt_straight;
+ break;
+ case BUTT_ROUND:
+ original_butt = butt_round;
+ break;
+ case butt_pointy: {
+ original_butt = butt_pointy;
+ break;
+ }
+ case BUTT_SQUARE: {
+ original_butt = butt_square;
+ break;
+ }
+ case BUTT_LEANED: {
+ original_butt = butt_straight;
+ break;
+ }
+ }
+ p.LoadPath(path_in[i], Geom::Affine(), false, false);
+ p.Outline(&outlinepath, line_width / 2, static_cast<join_typ>(join), original_butt, miter_lim);
+ Geom::PathVector *pv_p = outlinepath.MakePathVector();
+ //somewhat hack-ish
+ path_out.push_back( (*pv_p)[0].reverse() );
+ if (pv_p) delete pv_p;
+ }
+ }
+ return path_out;
+}
+
+Geom::PathVector PathVectorOutline(Geom::PathVector const & path_in, double line_width, ButtTypeMod linecap_type, LineJoinType linejoin_type, double miter_limit, double start_lean, double end_lean)
+{
+ std::vector<Geom::Path> path_out = std::vector<Geom::Path>();
+ if (path_in.empty()) {
+ return path_out;
+ }
+ Path p = Path();
+ Path outlinepath = Path();
+ for (unsigned i = 0; i < path_in.size(); i++) {
+ p.LoadPath(path_in[i], Geom::Affine(), false, ( (i==0) ? false : true));
+ }
+
+#define miter_lim fabs(line_width * miter_limit)
+
+ //magic!
+ ButtType original_butt;
+ switch (linecap_type) {
+ case BUTT_STRAIGHT:
+ original_butt = butt_straight;
+ break;
+ case BUTT_ROUND:
+ original_butt = butt_round;
+ break;
+ case butt_pointy: {
+ original_butt = butt_pointy;
+ break;
+ }
+ case BUTT_SQUARE: {
+ original_butt = butt_square;
+ break;
+ }
+ case BUTT_LEANED: {
+ original_butt = butt_straight;
+ break;
+ }
+ }
+ if (linejoin_type <= LINEJOIN_POINTY) {
+ p.Outline(&outlinepath, line_width / 2, static_cast<join_typ>(linejoin_type),
+ original_butt, miter_lim);
+ // fix memory leak
+ std::vector<Geom::Path> *pv_p = outlinepath.MakePathVector();
+ path_out = *pv_p;
+ delete pv_p;
+
+ } else if (linejoin_type == LINEJOIN_REFLECTED) {
+ // reflected arc join
+ path_out = outlinePath(path_in, line_width, static_cast<LineJoinType>(linejoin_type),
+ linecap_type , miter_lim, false, start_lean, end_lean);
+
+ } else if (linejoin_type == LINEJOIN_EXTRAPOLATED) {
+ // extrapolated arc join
+ path_out = outlinePath(path_in, line_width, LINEJOIN_STRAIGHT, linecap_type, miter_lim, true, start_lean, end_lean);
+ }
+
+#undef miter_lim
+ return path_out;
+}
+
+Geom::Path PathOutsideOutline(Geom::Path const & path_in, double line_width, LineJoinType linejoin_type, double miter_limit)
+{
+
+#define miter_lim fabs(line_width * miter_limit)
+
+ Geom::Path path_out;
+
+ if (linejoin_type <= LINEJOIN_POINTY || path_in.size() <= 1) {
+
+ Geom::PathVector * pathvec;
+
+ Path path_tangent = Path();
+ Path path_outline = Path();
+ path_outline.LoadPath(path_in, Geom::Affine(), false, false);
+ path_outline.OutsideOutline(&path_tangent, line_width / 2, static_cast<join_typ>(linejoin_type), butt_straight, miter_lim);
+
+ pathvec = path_tangent.MakePathVector();
+ path_out = pathvec->front();
+ delete pathvec;
+ return path_out;
+ } else if (linejoin_type == LINEJOIN_REFLECTED) {
+ path_out = outlineHalf(path_in, line_width, miter_lim, reflect_curves);
+ return path_out;
+ } else if (linejoin_type == LINEJOIN_EXTRAPOLATED) {
+ path_out = outlineHalf(path_in, line_width, miter_lim, extrapolate_curves);
+ return path_out;
+ }
+#undef miter_lim
+ return path_out;
+}
+
+} // namespace Outline
+
+/*
+ Local Variables:
+ mode:c++
+ c-file-style:"stroustrup"
+ c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
+ indent-tabs-mode:nil
+ fill-column:99
+ End:
+*/
+// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8 :
diff --git a/src/live_effects/pathoutlineprovider.h b/src/live_effects/pathoutlineprovider.h new file mode 100644 index 000000000..c17584be2 --- /dev/null +++ b/src/live_effects/pathoutlineprovider.h @@ -0,0 +1,55 @@ +#ifndef SEEN_PATH_OUTLINE_H +#define SEEN_PATH_OUTLINE_H + +/* Author: + * Liam P. White <inkscapebrony@gmail.com> + * + * Copyright (C) 2014 Author + * + * Released under GNU GPL, read the file 'COPYING' for more information + */ + +#include <livarot/Path.h> +#include <livarot/LivarotDefs.h> + +enum LineJoinType { + LINEJOIN_STRAIGHT, + LINEJOIN_ROUND, + LINEJOIN_POINTY, + LINEJOIN_REFLECTED, + LINEJOIN_EXTRAPOLATED +}; +enum ButtTypeMod { + BUTT_STRAIGHT, + BUTT_ROUND, + BUTT_SQUARE, + BUTT_POINTY, + BUTT_LEANED +}; + +namespace Geom +{ + Geom::CubicBezier sbasis_to_cubicbezier(Geom::D2<Geom::SBasis> const & sbasis_in); + std::vector<Geom::Path> split_at_cusps(const Geom::Path& in); +} + +namespace Outline +{ + unsigned bezierOrder (const Geom::Curve* curve_in); + std::vector<Geom::Path> PathVectorOutline(std::vector<Geom::Path> const & path_in, double line_width, ButtTypeMod linecap_type, + LineJoinType linejoin_type, double miter_limit, double start_lean = 0, double end_lean = 0); + Geom::Path PathOutsideOutline(Geom::Path const & path_in, double line_width, LineJoinType linejoin_type, double miter_limit); +} + +#endif // SEEN_PATH_OUTLINE_H + +/* + Local Variables: + mode:c++ + c-file-style:"stroustrup" + c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +)) + indent-tabs-mode:nil + fill-column:99 + End: +*/ +// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:fileencoding=utf-8 : |
