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authorTavmjong Bah <tavmjong@free.fr>2018-01-30 08:33:01 +0000
committerTavmjong Bah <tavmjong@free.fr>2018-01-30 08:33:01 +0000
commit267299811df952d08324a39008f52c19641de9e0 (patch)
tree28fef736a52cb7a72119d119be8eb663ad20a77f /src/sp-rect.cpp
parentTranslations: update inkscape.pot (diff)
downloadinkscape-267299811df952d08324a39008f52c19641de9e0.tar.gz
inkscape-267299811df952d08324a39008f52c19641de9e0.zip
Move classes derived from SPObject to own directory.
A lot of header clean-up.
Diffstat (limited to 'src/sp-rect.cpp')
-rw-r--r--src/sp-rect.cpp577
1 files changed, 0 insertions, 577 deletions
diff --git a/src/sp-rect.cpp b/src/sp-rect.cpp
deleted file mode 100644
index 88dad5354..000000000
--- a/src/sp-rect.cpp
+++ /dev/null
@@ -1,577 +0,0 @@
-/*
- * SVG <rect> implementation
- *
- * Authors:
- * Lauris Kaplinski <lauris@kaplinski.com>
- * bulia byak <buliabyak@users.sf.net>
- *
- * Copyright (C) 1999-2002 Lauris Kaplinski
- * Copyright (C) 2000-2001 Ximian, Inc.
- *
- * Released under GNU GPL, read the file 'COPYING' for more information
- */
-
-#ifdef HAVE_CONFIG_H
-#include <config.h>
-#endif
-
-#include "display/curve.h"
-
-#include "inkscape.h"
-#include "document.h"
-#include "attributes.h"
-#include "style.h"
-#include "sp-rect.h"
-#include <glibmm/i18n.h>
-#include "sp-guide.h"
-#include "preferences.h"
-
-#define noRECT_VERBOSE
-
-//#define OBJECT_TRACE
-
-SPRect::SPRect() : SPShape() {
-}
-
-SPRect::~SPRect() {
-}
-
-void SPRect::build(SPDocument* doc, Inkscape::XML::Node* repr) {
-#ifdef OBJECT_TRACE
- objectTrace( "SPRect::build" );
-#endif
-
- SPShape::build(doc, repr);
-
- this->readAttr("x");
- this->readAttr("y");
- this->readAttr("width");
- this->readAttr("height");
- this->readAttr("rx");
- this->readAttr("ry");
-
-#ifdef OBJECT_TRACE
- objectTrace( "SPRect::build", false );
-#endif
-}
-
-void SPRect::set(unsigned key, gchar const *value) {
-
-#ifdef OBJECT_TRACE
- std::stringstream temp;
- temp << "SPRect::set: " << key << " " << (value?value:"null");
- objectTrace( temp.str() );
-#endif
-
- /* fixme: We need real error processing some time */
-
- // We must update the SVGLengths immediately or nodes may be misplaced after they are moved.
- double const w = viewport.width();
- double const h = viewport.height();
- double const em = style->font_size.computed;
- double const ex = em * 0.5;
-
- switch (key) {
- case SP_ATTR_X:
- this->x.readOrUnset(value);
- this->x.update( em, ex, w );
- this->requestDisplayUpdate(SP_OBJECT_MODIFIED_FLAG);
- break;
-
- case SP_ATTR_Y:
- this->y.readOrUnset(value);
- this->y.update( em, ex, h );
- this->requestDisplayUpdate(SP_OBJECT_MODIFIED_FLAG);
- break;
-
- case SP_ATTR_WIDTH:
- if (!this->width.read(value) || this->width.value < 0.0) {
- this->width.unset();
- }
- this->width.update( em, ex, w );
- this->requestDisplayUpdate(SP_OBJECT_MODIFIED_FLAG);
- break;
-
- case SP_ATTR_HEIGHT:
- if (!this->height.read(value) || this->height.value < 0.0) {
- this->height.unset();
- }
- this->height.update( em, ex, h );
- this->requestDisplayUpdate(SP_OBJECT_MODIFIED_FLAG);
- break;
-
- case SP_ATTR_RX:
- if (!this->rx.read(value) || this->rx.value <= 0.0) {
- this->rx.unset();
- }
- this->rx.update( em, ex, w );
- this->requestDisplayUpdate(SP_OBJECT_MODIFIED_FLAG);
- break;
-
- case SP_ATTR_RY:
- if (!this->ry.read(value) || this->ry.value <= 0.0) {
- this->ry.unset();
- }
- this->ry.update( em, ex, h );
- this->requestDisplayUpdate(SP_OBJECT_MODIFIED_FLAG);
- break;
-
- default:
- SPShape::set(key, value);
- break;
- }
-#ifdef OBJECT_TRACE
- objectTrace( "SPRect::set", false );
-#endif
-}
-
-void SPRect::update(SPCtx* ctx, unsigned int flags) {
-
-#ifdef OBJECT_TRACE
- objectTrace( "SPRect::update", true, flags );
-#endif
-
- if (flags & (SP_OBJECT_MODIFIED_FLAG | SP_OBJECT_STYLE_MODIFIED_FLAG | SP_OBJECT_VIEWPORT_MODIFIED_FLAG)) {
- SPItemCtx const *ictx = reinterpret_cast<SPItemCtx const *>(ctx);
-
- double const w = ictx->viewport.width();
- double const h = ictx->viewport.height();
- double const em = style->font_size.computed;
- double const ex = 0.5 * em; // fixme: get x height from pango or libnrtype.
-
- this->x.update(em, ex, w);
- this->y.update(em, ex, h);
- this->width.update(em, ex, w);
- this->height.update(em, ex, h);
- this->rx.update(em, ex, w);
- this->ry.update(em, ex, h);
- this->set_shape();
-
- flags &= ~SP_OBJECT_USER_MODIFIED_FLAG_B; // since we change the description, it's not a "just translation" anymore
- }
-
- SPShape::update(ctx, flags);
-#ifdef OBJECT_TRACE
- objectTrace( "SPRect::update", false, flags );
-#endif
-}
-
-Inkscape::XML::Node * SPRect::write(Inkscape::XML::Document *xml_doc, Inkscape::XML::Node *repr, guint flags) {
-
-#ifdef OBJECT_TRACE
- objectTrace( "SPRect::write", true, flags );
-#endif
-
- if ((flags & SP_OBJECT_WRITE_BUILD) && !repr) {
- repr = xml_doc->createElement("svg:rect");
- }
-
- sp_repr_set_svg_length(repr, "width", this->width);
- sp_repr_set_svg_length(repr, "height", this->height);
-
- if (this->rx._set) {
- sp_repr_set_svg_length(repr, "rx", this->rx);
- }
-
- if (this->ry._set) {
- sp_repr_set_svg_length(repr, "ry", this->ry);
- }
-
- sp_repr_set_svg_length(repr, "x", this->x);
- sp_repr_set_svg_length(repr, "y", this->y);
-
- this->set_shape(); // evaluate SPCurve
- SPShape::write(xml_doc, repr, flags);
-
-#ifdef OBJECT_TRACE
- objectTrace( "SPRect::write", false, flags );
-#endif
-
- return repr;
-}
-
-const char* SPRect::displayName() const {
- return _("Rectangle");
-}
-
-#define C1 0.554
-
-void SPRect::set_shape() {
- if ((this->height.computed < 1e-18) || (this->width.computed < 1e-18)) {
- this->setCurveInsync( NULL, TRUE);
- this->setCurveBeforeLPE( NULL );
- return;
- }
-
- SPCurve *c = new SPCurve();
-
- double const x = this->x.computed;
- double const y = this->y.computed;
- double const w = this->width.computed;
- double const h = this->height.computed;
- double const w2 = w / 2;
- double const h2 = h / 2;
- double const rx = std::min(( this->rx._set
- ? this->rx.computed
- : ( this->ry._set
- ? this->ry.computed
- : 0.0 ) ),
- .5 * this->width.computed);
- double const ry = std::min(( this->ry._set
- ? this->ry.computed
- : ( this->rx._set
- ? this->rx.computed
- : 0.0 ) ),
- .5 * this->height.computed);
- /* TODO: Handle negative rx or ry as per
- * http://www.w3.org/TR/SVG11/shapes.html#RectElementRXAttribute once Inkscape has proper error
- * handling (see http://www.w3.org/TR/SVG11/implnote.html#ErrorProcessing).
- */
-
- /* We don't use proper circular/elliptical arcs, but bezier curves can approximate a 90-degree
- * arc fairly well.
- */
- if ((rx > 1e-18) && (ry > 1e-18)) {
- c->moveto(x + rx, y);
-
- if (rx < w2) {
- c->lineto(x + w - rx, y);
- }
-
- c->curveto(x + w - rx * (1 - C1), y, x + w, y + ry * (1 - C1), x + w, y + ry);
-
- if (ry < h2) {
- c->lineto(x + w, y + h - ry);
- }
-
- c->curveto(x + w, y + h - ry * (1 - C1), x + w - rx * (1 - C1), y + h, x + w - rx, y + h);
-
- if (rx < w2) {
- c->lineto(x + rx, y + h);
- }
-
- c->curveto(x + rx * (1 - C1), y + h, x, y + h - ry * (1 - C1), x, y + h - ry);
-
- if (ry < h2) {
- c->lineto(x, y + ry);
- }
-
- c->curveto(x, y + ry * (1 - C1), x + rx * (1 - C1), y, x + rx, y);
- } else {
- c->moveto(x + 0.0, y + 0.0);
- c->lineto(x + w, y + 0.0);
- c->lineto(x + w, y + h);
- c->lineto(x + 0.0, y + h);
- }
-
- c->closepath();
- this->setCurveInsync(c, true);
- this->setCurveBeforeLPE(c);
-
- // LPE is not applied because result can generally not be represented as SPRect
-
- c->unref();
-}
-
-/* fixme: Think (Lauris) */
-
-void SPRect::setPosition(gdouble x, gdouble y, gdouble width, gdouble height) {
- this->x = x;
- this->y = y;
- this->width = width;
- this->height = height;
-
- this->requestDisplayUpdate(SP_OBJECT_MODIFIED_FLAG);
-}
-
-void SPRect::setRx(bool set, gdouble value) {
- this->rx._set = set;
-
- if (set) {
- this->rx = value;
- }
-
- this->requestDisplayUpdate(SP_OBJECT_MODIFIED_FLAG);
-}
-
-void SPRect::setRy(bool set, gdouble value) {
- this->ry._set = set;
-
- if (set) {
- this->ry = value;
- }
-
- this->requestDisplayUpdate(SP_OBJECT_MODIFIED_FLAG);
-}
-
-Geom::Affine SPRect::set_transform(Geom::Affine const& xform) {
- /* Calculate rect start in parent coords. */
- Geom::Point pos(Geom::Point(this->x.computed, this->y.computed) * xform);
-
- /* This function takes care of translation and scaling, we return whatever parts we can't
- handle. */
- Geom::Affine ret(Geom::Affine(xform).withoutTranslation());
- gdouble const sw = hypot(ret[0], ret[1]);
- gdouble const sh = hypot(ret[2], ret[3]);
-
- if (sw > 1e-9) {
- ret[0] /= sw;
- ret[1] /= sw;
- } else {
- ret[0] = 1.0;
- ret[1] = 0.0;
- }
-
- if (sh > 1e-9) {
- ret[2] /= sh;
- ret[3] /= sh;
- } else {
- ret[2] = 0.0;
- ret[3] = 1.0;
- }
-
- /* Preserve units */
- this->width.scale( sw );
- this->height.scale( sh );
-
- if (this->rx._set) {
- this->rx.scale( sw );
- }
-
- if (this->ry._set) {
- this->ry.scale( sh );
- }
-
- /* Find start in item coords */
- pos = pos * ret.inverse();
- this->x = pos[Geom::X];
- this->y = pos[Geom::Y];
-
- this->set_shape();
-
- // Adjust stroke width
- this->adjust_stroke(sqrt(fabs(sw * sh)));
-
- // Adjust pattern fill
- this->adjust_pattern(xform * ret.inverse());
-
- // Adjust gradient fill
- this->adjust_gradient(xform * ret.inverse());
-
- this->requestDisplayUpdate(SP_OBJECT_MODIFIED_FLAG | SP_OBJECT_STYLE_MODIFIED_FLAG);
-
- return ret;
-}
-
-
-/**
-Returns the ratio in which the vector from p0 to p1 is stretched by transform
- */
-gdouble SPRect::vectorStretch(Geom::Point p0, Geom::Point p1, Geom::Affine xform) {
- if (p0 == p1) {
- return 0;
- }
-
- return (Geom::distance(p0 * xform, p1 * xform) / Geom::distance(p0, p1));
-}
-
-void SPRect::setVisibleRx(gdouble rx) {
- if (rx == 0) {
- this->rx.unset();
- } else {
- this->rx = rx / SPRect::vectorStretch(
- Geom::Point(this->x.computed + 1, this->y.computed),
- Geom::Point(this->x.computed, this->y.computed),
- this->i2doc_affine());
- }
-
- this->updateRepr();
-}
-
-void SPRect::setVisibleRy(gdouble ry) {
- if (ry == 0) {
- this->ry.unset();
- } else {
- this->ry = ry / SPRect::vectorStretch(
- Geom::Point(this->x.computed, this->y.computed + 1),
- Geom::Point(this->x.computed, this->y.computed),
- this->i2doc_affine());
- }
-
- this->updateRepr();
-}
-
-gdouble SPRect::getVisibleRx() const {
- if (!this->rx._set) {
- return 0;
- }
-
- return this->rx.computed * SPRect::vectorStretch(
- Geom::Point(this->x.computed + 1, this->y.computed),
- Geom::Point(this->x.computed, this->y.computed),
- this->i2doc_affine());
-}
-
-gdouble SPRect::getVisibleRy() const {
- if (!this->ry._set) {
- return 0;
- }
-
- return this->ry.computed * SPRect::vectorStretch(
- Geom::Point(this->x.computed, this->y.computed + 1),
- Geom::Point(this->x.computed, this->y.computed),
- this->i2doc_affine());
-}
-
-Geom::Rect SPRect::getRect() const {
- Geom::Point p0 = Geom::Point(this->x.computed, this->y.computed);
- Geom::Point p2 = Geom::Point(this->x.computed + this->width.computed, this->y.computed + this->height.computed);
-
- return Geom::Rect(p0, p2);
-}
-
-void SPRect::compensateRxRy(Geom::Affine xform) {
- if (this->rx.computed == 0 && this->ry.computed == 0) {
- return; // nothing to compensate
- }
-
- // test unit vectors to find out compensation:
- Geom::Point c(this->x.computed, this->y.computed);
- Geom::Point cx = c + Geom::Point(1, 0);
- Geom::Point cy = c + Geom::Point(0, 1);
-
- // apply previous transform if any
- c *= this->transform;
- cx *= this->transform;
- cy *= this->transform;
-
- // find out stretches that we need to compensate
- gdouble eX = SPRect::vectorStretch(cx, c, xform);
- gdouble eY = SPRect::vectorStretch(cy, c, xform);
-
- // If only one of the radii is set, set both radii so they have the same visible length
- // This is needed because if we just set them the same length in SVG, they might end up unequal because of transform
- if ((this->rx._set && !this->ry._set) || (this->ry._set && !this->rx._set)) {
- gdouble r = MAX(this->rx.computed, this->ry.computed);
- this->rx = r / eX;
- this->ry = r / eY;
- } else {
- this->rx = this->rx.computed / eX;
- this->ry = this->ry.computed / eY;
- }
-
- // Note that a radius may end up larger than half-side if the rect is scaled down;
- // that's ok because this preserves the intended radii in case the rect is enlarged again,
- // and set_shape will take care of trimming too large radii when generating d=
-}
-
-void SPRect::setVisibleWidth(gdouble width) {
- this->width = width / SPRect::vectorStretch(
- Geom::Point(this->x.computed + 1, this->y.computed),
- Geom::Point(this->x.computed, this->y.computed),
- this->i2doc_affine());
-
- this->updateRepr();
-}
-
-void SPRect::setVisibleHeight(gdouble height) {
- this->height = height / SPRect::vectorStretch(
- Geom::Point(this->x.computed, this->y.computed + 1),
- Geom::Point(this->x.computed, this->y.computed),
- this->i2doc_affine());
-
- this->updateRepr();
-}
-
-gdouble SPRect::getVisibleWidth() const {
- if (!this->width._set) {
- return 0;
- }
-
- return this->width.computed * SPRect::vectorStretch(
- Geom::Point(this->x.computed + 1, this->y.computed),
- Geom::Point(this->x.computed, this->y.computed),
- this->i2doc_affine());
-}
-
-gdouble SPRect::getVisibleHeight() const {
- if (!this->height._set) {
- return 0;
- }
-
- return this->height.computed * SPRect::vectorStretch(
- Geom::Point(this->x.computed, this->y.computed + 1),
- Geom::Point(this->x.computed, this->y.computed),
- this->i2doc_affine());
-}
-
-void SPRect::snappoints(std::vector<Inkscape::SnapCandidatePoint> &p, Inkscape::SnapPreferences const *snapprefs) const {
- /* This method overrides sp_shape_snappoints, which is the default for any shape. The default method
- returns all eight points along the path of a rounded rectangle, but not the real corners. Snapping
- the startpoint and endpoint of each rounded corner is not very useful and really confusing. Instead
- we could snap either the real corners, or not snap at all. Bulia Byak opted to snap the real corners,
- but it should be noted that this might be confusing in some cases with relatively large radii. With
- small radii though the user will easily understand which point is snapping. */
-
- Geom::Affine const i2dt (this->i2dt_affine ());
-
- Geom::Point p0 = Geom::Point(this->x.computed, this->y.computed) * i2dt;
- Geom::Point p1 = Geom::Point(this->x.computed, this->y.computed + this->height.computed) * i2dt;
- Geom::Point p2 = Geom::Point(this->x.computed + this->width.computed, this->y.computed + this->height.computed) * i2dt;
- Geom::Point p3 = Geom::Point(this->x.computed + this->width.computed, this->y.computed) * i2dt;
-
- if (snapprefs->isTargetSnappable(Inkscape::SNAPTARGET_RECT_CORNER)) {
- p.push_back(Inkscape::SnapCandidatePoint(p0, Inkscape::SNAPSOURCE_RECT_CORNER, Inkscape::SNAPTARGET_RECT_CORNER));
- p.push_back(Inkscape::SnapCandidatePoint(p1, Inkscape::SNAPSOURCE_RECT_CORNER, Inkscape::SNAPTARGET_RECT_CORNER));
- p.push_back(Inkscape::SnapCandidatePoint(p2, Inkscape::SNAPSOURCE_RECT_CORNER, Inkscape::SNAPTARGET_RECT_CORNER));
- p.push_back(Inkscape::SnapCandidatePoint(p3, Inkscape::SNAPSOURCE_RECT_CORNER, Inkscape::SNAPTARGET_RECT_CORNER));
- }
-
- if (snapprefs->isTargetSnappable(Inkscape::SNAPTARGET_LINE_MIDPOINT)) {
- p.push_back(Inkscape::SnapCandidatePoint((p0 + p1)/2, Inkscape::SNAPSOURCE_LINE_MIDPOINT, Inkscape::SNAPTARGET_LINE_MIDPOINT));
- p.push_back(Inkscape::SnapCandidatePoint((p1 + p2)/2, Inkscape::SNAPSOURCE_LINE_MIDPOINT, Inkscape::SNAPTARGET_LINE_MIDPOINT));
- p.push_back(Inkscape::SnapCandidatePoint((p2 + p3)/2, Inkscape::SNAPSOURCE_LINE_MIDPOINT, Inkscape::SNAPTARGET_LINE_MIDPOINT));
- p.push_back(Inkscape::SnapCandidatePoint((p3 + p0)/2, Inkscape::SNAPSOURCE_LINE_MIDPOINT, Inkscape::SNAPTARGET_LINE_MIDPOINT));
- }
-
- if (snapprefs->isTargetSnappable(Inkscape::SNAPTARGET_OBJECT_MIDPOINT)) {
- p.push_back(Inkscape::SnapCandidatePoint((p0 + p2)/2, Inkscape::SNAPSOURCE_OBJECT_MIDPOINT, Inkscape::SNAPTARGET_OBJECT_MIDPOINT));
- }
-}
-
-void SPRect::convert_to_guides() const {
- Inkscape::Preferences *prefs = Inkscape::Preferences::get();
-
- if (!prefs->getBool("/tools/shapes/rect/convertguides", true)) {
- // Use bounding box instead of edges
- SPShape::convert_to_guides();
- return;
- }
-
- std::list<std::pair<Geom::Point, Geom::Point> > pts;
-
- Geom::Affine const i2dt(this->i2dt_affine());
-
- Geom::Point A1(Geom::Point(this->x.computed, this->y.computed) * i2dt);
- Geom::Point A2(Geom::Point(this->x.computed, this->y.computed + this->height.computed) * i2dt);
- Geom::Point A3(Geom::Point(this->x.computed + this->width.computed, this->y.computed + this->height.computed) * i2dt);
- Geom::Point A4(Geom::Point(this->x.computed + this->width.computed, this->y.computed) * i2dt);
-
- pts.push_back(std::make_pair(A1, A2));
- pts.push_back(std::make_pair(A2, A3));
- pts.push_back(std::make_pair(A3, A4));
- pts.push_back(std::make_pair(A4, A1));
-
- sp_guide_pt_pairs_to_guides(this->document, pts);
-}
-
-/*
- 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 :