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Diffstat (limited to 'src/spray-context.cpp')
| -rw-r--r-- | src/spray-context.cpp | 1056 |
1 files changed, 1056 insertions, 0 deletions
diff --git a/src/spray-context.cpp b/src/spray-context.cpp new file mode 100644 index 000000000..40bfc041e --- /dev/null +++ b/src/spray-context.cpp @@ -0,0 +1,1056 @@ +#define __SP_SPRAY_CONTEXT_C__ + +/* + * Spray Tool + * + * Authors: + * Pierre-Antoine MARC + * Pierre CACLIN + * Aurel-Aimé MARMION + * Julien LERAY + * Benoît LAVORATA + * Vincent MONTAGNE + * Pierre BARBRY-BLOT + * Steren GIANNINI (steren.giannini@gmail.com) + * + * Copyright (C) 2009 authors + * + * Released under GNU GPL, read the file 'COPYING' for more information + */ + +#include "config.h" + +#include <gtk/gtk.h> +#include <gdk/gdkkeysyms.h> +#include <glibmm/i18n.h> + +#include <numeric> + +#include "svg/svg.h" +#include "display/canvas-bpath.h" + +#include <glib/gmem.h> +#include "macros.h" +#include "document.h" +#include "selection.h" +#include "desktop.h" +#include "desktop-events.h" +#include "desktop-handles.h" +#include "unistd.h" +#include "desktop-style.h" +#include "message-context.h" +#include "pixmaps/cursor-spray.xpm" +#include <boost/optional.hpp> +#include "libnr/nr-matrix-ops.h" +#include "libnr/nr-scale-translate-ops.h" +#include "xml/repr.h" +#include "context-fns.h" +#include "sp-item.h" +#include "inkscape.h" +#include "color.h" +#include "svg/svg-color.h" +#include "splivarot.h" +#include "sp-item-group.h" +#include "sp-shape.h" +#include "sp-path.h" +#include "path-chemistry.h" +#include "sp-gradient.h" +#include "sp-stop.h" +#include "sp-stop-fns.h" +#include "sp-gradient-reference.h" +#include "sp-linear-gradient.h" +#include "sp-radial-gradient.h" +#include "gradient-chemistry.h" +#include "sp-text.h" +#include "sp-flowtext.h" +#include "display/canvas-bpath.h" +#include "display/canvas-arena.h" +#include "display/curve.h" +#include "livarot/Shape.h" +#include <2geom/isnan.h> +#include <2geom/transforms.h> +#include "preferences.h" +#include "style.h" +#include "box3d.h" +#include "sp-item-transform.h" +#include "filter-chemistry.h" +#include "sp-gaussian-blur-fns.h" +#include "sp-gaussian-blur.h" + +#include "spray-context.h" +#include "ui/dialog/dialog-manager.h" +#include "helper/action.h" + +#include <iostream> +using namespace std; + + +#define DDC_RED_RGBA 0xff0000ff + +#define DYNA_MIN_WIDTH 1.0e-6 + +static void sp_spray_context_class_init(SPSprayContextClass *klass); +static void sp_spray_context_init(SPSprayContext *ddc); +static void sp_spray_context_dispose(GObject *object); + +static void sp_spray_context_setup(SPEventContext *ec); +static void sp_spray_context_set(SPEventContext *ec, Inkscape::Preferences::Entry *val); +static gint sp_spray_context_root_handler(SPEventContext *ec, GdkEvent *event); + +static SPEventContextClass *parent_class = 0; + + +/** + * This function returns pseudo-random numbers from a normal distribution + * @param mu : mean + * @param sigma : standard deviation ( > 0 ) + */ +inline double NormalDistribution(double mu,double sigma) +{ + // use Box Muller's algorithm + return mu + sigma * sqrt( -2.0 * log(g_random_double_range(0, 1)) ) * cos( 2.0*M_PI*g_random_double_range(0, 1) ); +} + + +GtkType sp_spray_context_get_type(void) +{ + static GType type = 0; + if (!type) { + GTypeInfo info = { + sizeof(SPSprayContextClass), + NULL, NULL, + (GClassInitFunc) sp_spray_context_class_init, + NULL, NULL, + sizeof(SPSprayContext), + 4, + (GInstanceInitFunc) sp_spray_context_init, + NULL, /* value_table */ + }; + type = g_type_register_static(SP_TYPE_EVENT_CONTEXT, "SPSprayContext", &info, (GTypeFlags)0); + } + return type; +} + +static void sp_spray_context_class_init(SPSprayContextClass *klass) +{ + GObjectClass *object_class = (GObjectClass *) klass; + SPEventContextClass *event_context_class = (SPEventContextClass *) klass; + + parent_class = (SPEventContextClass*)g_type_class_peek_parent(klass); + + object_class->dispose = sp_spray_context_dispose; + + event_context_class->setup = sp_spray_context_setup; + event_context_class->set = sp_spray_context_set; + event_context_class->root_handler = sp_spray_context_root_handler; +} + +/* Method to rotate items */ +void sp_spray_rotate_rel(Geom::Point c,SPDesktop */*desktop*/,SPItem *item, Geom::Rotate const &rotation) +{ + Geom::Point center = c; + Geom::Translate const s(c); + Geom::Matrix affine = Geom::Matrix(s).inverse() * Geom::Matrix(rotation) * Geom::Matrix(s); + // Rotate item. + sp_item_set_i2d_affine(item, sp_item_i2d_affine(item) * (Geom::Matrix)affine); + // Use each item's own transform writer, consistent with sp_selection_apply_affine() + sp_item_write_transform(item, SP_OBJECT_REPR(item), item->transform); + // Restore the center position (it's changed because the bbox center changed) + if (item->isCenterSet()) { + item->setCenter(c); + item->updateRepr(); + } +} + +/* Method to scale items */ +void sp_spray_scale_rel(Geom::Point c, SPDesktop */*desktop*/, SPItem *item, Geom::Scale const &scale) +{ + Geom::Translate const s(c); + sp_item_set_i2d_affine(item, sp_item_i2d_affine(item) * s.inverse() * scale * s ); + sp_item_write_transform(item, SP_OBJECT_REPR(item), item->transform); +} + +static void sp_spray_context_init(SPSprayContext *tc) +{ + SPEventContext *event_context = SP_EVENT_CONTEXT(tc); + + event_context->cursor_shape = cursor_spray_xpm; + event_context->hot_x = 4; + event_context->hot_y = 4; + + /* attributes */ + tc->dragging = FALSE; + tc->distrib = 1; + tc->width = 0.2; + tc->force = 0.2; + tc->ratio = 0; + tc->tilt=0; + tc->mean = 0.2; + tc->rotation_variation=0; + tc->standard_deviation=0.2; + tc->scale=1; + tc->scale_variation = 1; + tc->pressure = TC_DEFAULT_PRESSURE; + + tc->is_dilating = false; + tc->has_dilated = false; + + tc->do_h = true; + tc->do_s = true; + tc->do_l = true; + tc->do_o = false; + + new (&tc->style_set_connection) sigc::connection(); +} + +static void sp_spray_context_dispose(GObject *object) +{ + SPSprayContext *tc = SP_SPRAY_CONTEXT(object); + + tc->style_set_connection.disconnect(); + tc->style_set_connection.~connection(); + + if (tc->dilate_area) { + gtk_object_destroy(GTK_OBJECT(tc->dilate_area)); + tc->dilate_area = NULL; + } + + if (tc->_message_context) { + delete tc->_message_context; + } + + G_OBJECT_CLASS(parent_class)->dispose(object); +} + +bool is_transform_modes(gint mode) +{ + return (mode == SPRAY_MODE_COPY || + mode == SPRAY_MODE_CLONE || + mode == SPRAY_MODE_SINGLE_PATH || + mode == SPRAY_OPTION); +} + +void sp_spray_update_cursor(SPSprayContext *tc, bool /*with_shift*/) +{ + SPEventContext *event_context = SP_EVENT_CONTEXT(tc); + SPDesktop *desktop = event_context->desktop; + + guint num = 0; + gchar *sel_message = NULL; + if (!desktop->selection->isEmpty()) { + num = g_slist_length((GSList *) desktop->selection->itemList()); + sel_message = g_strdup_printf(ngettext("<b>%i</b> object selected","<b>%i</b> objects selected",num), num); + } else { + sel_message = g_strdup_printf(_("<b>Nothing</b> selected")); + } + + + switch (tc->mode) { + case SPRAY_MODE_COPY: + tc->_message_context->setF(Inkscape::NORMAL_MESSAGE, _("%s. Drag, click or scroll to spray <b>copies</b> of the initial selection"), sel_message); + break; + case SPRAY_MODE_CLONE: + tc->_message_context->setF(Inkscape::NORMAL_MESSAGE, _("%s. Drag, click or scroll to spray <b>clones</b> of the initial selection"), sel_message); + break; + case SPRAY_MODE_SINGLE_PATH: + tc->_message_context->setF(Inkscape::NORMAL_MESSAGE, _("%s. Drag, click or scroll to spray in a <b>single path</b> of the initial selection"), sel_message); + break; + default: + break; + } + sp_event_context_update_cursor(event_context); + g_free(sel_message); +} + +static void sp_spray_context_setup(SPEventContext *ec) +{ + SPSprayContext *tc = SP_SPRAY_CONTEXT(ec); + + if (((SPEventContextClass *) parent_class)->setup) + ((SPEventContextClass *) parent_class)->setup(ec); + + { + /* TODO: have a look at sp_dyna_draw_context_setup where the same is done.. generalize? at least make it an arcto! */ + SPCurve *c = new SPCurve(); + const double C1 = 0.552; + c->moveto(-1,0); + c->curveto(-1, C1, -C1, 1, 0, 1 ); + c->curveto(C1, 1, 1, C1, 1, 0 ); + c->curveto(1, -C1, C1, -1, 0, -1 ); + c->curveto(-C1, -1, -1, -C1, -1, 0 ); + c->closepath(); + tc->dilate_area = sp_canvas_bpath_new(sp_desktop_controls(ec->desktop), c); + c->unref(); + sp_canvas_bpath_set_fill(SP_CANVAS_BPATH(tc->dilate_area), 0x00000000,(SPWindRule)0); + sp_canvas_bpath_set_stroke(SP_CANVAS_BPATH(tc->dilate_area), 0xff9900ff, 1.0, SP_STROKE_LINEJOIN_MITER, SP_STROKE_LINECAP_BUTT); + sp_canvas_item_hide(tc->dilate_area); + } + + tc->is_drawing = false; + + tc->_message_context = new Inkscape::MessageContext((ec->desktop)->messageStack()); + + sp_event_context_read(ec, "distrib"); + sp_event_context_read(ec, "width"); + sp_event_context_read(ec, "ratio"); + sp_event_context_read(ec, "tilt"); + sp_event_context_read(ec, "rotation_variation"); + sp_event_context_read(ec, "scale_variation"); + sp_event_context_read(ec, "mode"); + sp_event_context_read(ec, "population"); + sp_event_context_read(ec, "force"); + sp_event_context_read(ec, "mean"); + sp_event_context_read(ec, "standard_deviation"); + sp_event_context_read(ec, "usepressure"); + sp_event_context_read(ec, "Scale"); + sp_event_context_read(ec, "doh"); + sp_event_context_read(ec, "dol"); + sp_event_context_read(ec, "dos"); + sp_event_context_read(ec, "doo"); + + ; + + Inkscape::Preferences *prefs = Inkscape::Preferences::get(); + if (prefs->getBool("/tools/spray/selcue")) { + ec->enableSelectionCue(); + } + + if (prefs->getBool("/tools/spray/gradientdrag")) { + ec->enableGrDrag(); + } +} + +static void sp_spray_context_set(SPEventContext *ec, Inkscape::Preferences::Entry *val) +{ + SPSprayContext *tc = SP_SPRAY_CONTEXT(ec); + Glib::ustring path = val->getEntryName(); + + if (path == "width") { + tc->width = 0.01 * CLAMP(val->getInt(10), 1, 100); + } else if (path == "mode") { + tc->mode = val->getInt(); + sp_spray_update_cursor(tc, false); + } else if (path == "distribution") { + tc->distrib = val->getInt(1); + } else if (path == "population") { + tc->population = 0.01 * CLAMP(val->getInt(10), 1, 100); + } else if (path == "tilt") { + tc->tilt = CLAMP(val->getDouble(0.1), 0, 1000.0); + } else if (path == "ratio") { + tc->ratio = CLAMP(val->getDouble(), 0.0, 0.9); + } else if (path == "force") { + tc->force = CLAMP(val->getDouble(1.0), 0, 1.0); + } else if (path == "rotation_variation") { + tc->rotation_variation = CLAMP(val->getDouble(0.0), 0, 100.0); + } else if (path == "scale_variation") { + tc->scale_variation = CLAMP(val->getDouble(1.0), 0, 100.0); + } else if (path == "mean") { + tc->mean = 0.01 * CLAMP(val->getInt(10), 1, 100); + } else if (path == "standard_deviation") { + tc->standard_deviation = 0.01 * CLAMP(val->getInt(10), 1, 100); + } else if (path == "usepressure") { + tc->usepressure = val->getBool(); + } else if (path == "doh") { + tc->do_h = val->getBool(); + } else if (path == "dos") { + tc->do_s = val->getBool(); + } else if (path == "dol") { + tc->do_l = val->getBool(); + } else if (path == "doo") { + tc->do_o = val->getBool(); + } +} + +static void sp_spray_extinput(SPSprayContext *tc, GdkEvent *event) +{ + if (gdk_event_get_axis (event, GDK_AXIS_PRESSURE, &tc->pressure)) + tc->pressure = CLAMP (tc->pressure, TC_MIN_PRESSURE, TC_MAX_PRESSURE); + else + tc->pressure = TC_DEFAULT_PRESSURE; +} + +double get_dilate_radius(SPSprayContext *tc) +{ + + return 250 * tc->width/SP_EVENT_CONTEXT(tc)->desktop->current_zoom(); + + +} + +double get_path_force(SPSprayContext *tc) +{ + double force = 8 * (tc->usepressure? tc->pressure : TC_DEFAULT_PRESSURE) + /sqrt(SP_EVENT_CONTEXT(tc)->desktop->current_zoom()); + if (force > 3) { + force += 4 * (force - 3); + } + return force * tc->force; +} + +double get_path_mean(SPSprayContext *tc) +{ + return tc->mean; +} + +double get_path_standard_deviation(SPSprayContext *tc) +{ + return tc->standard_deviation; +} + +double get_move_force(SPSprayContext *tc) +{ + double force = (tc->usepressure? tc->pressure : TC_DEFAULT_PRESSURE); + return force * tc->force; +} + +double get_move_mean(SPSprayContext *tc) +{ + return tc->mean; +} + +double get_move_standard_deviation(SPSprayContext *tc) +{ + return tc->standard_deviation; +} + +/** + * Method to handle the distribution of the items + * @param[out] radius : radius of the position of the sprayed object + * @param[out] angle : angle of the position of the sprayed object + * @param[in] a : mean + * @param[in] s : standard deviation + * @param[in] choice : + + */ +void random_position( double &radius, double &angle, double &a, double &s, int choice) +{ + // angle is taken from an uniform distribution + angle = g_random_double_range(0, M_PI*2.0); + + // radius is taken from a Normal Distribution + double radius_temp =-1; + while(!((radius_temp>=0)&&(radius_temp<=1))) + { + radius_temp = NormalDistribution( a, s ); + } + // Because we are in polar coordinates, a special treatment has to be done to the radius. + // Otherwise, positions taken from an uniform repartition on radius and angle will not seam to + // be uniformily distributed on the disk (more at the center and less at the boundary). + // We counter this effect with a 0.5 exponent. This is empiric. + radius = pow( radius_temp, 0.5); + +} + + + + + +bool sp_spray_recursive(SPDesktop *desktop, + Inkscape::Selection *selection, + SPItem *item, + Geom::Point p, + Geom::Point /*vector*/, + gint mode, + double radius, + double /*force*/, + double population, + double &scale, + double scale_variation, + bool /*reverse*/, + double mean, + double standard_deviation, + double ratio, + double tilt, + double rotation_variation, + gint _distrib ) +{ + bool did = false; + + if (SP_IS_BOX3D(item) ) { + // convert 3D boxes to ordinary groups before spraying their shapes + item = SP_ITEM(box3d_convert_to_group(SP_BOX3D(item))); + selection->add(item); + } + + double _fid = g_random_double_range(0,1); + double angle = g_random_double_range( - rotation_variation / 100.0 * M_PI , rotation_variation / 100.0 * M_PI ); + double _scale = g_random_double_range( 1.0 - scale_variation / 100.0, 1.0 + scale_variation / 100.0 ); + double dr; double dp; + random_position( dr, dp, mean, standard_deviation, _distrib ); + dr=dr*radius; + + if (mode == SPRAY_MODE_COPY) { + Geom::OptRect a = item->getBounds(sp_item_i2doc_affine(item)); + if (a) { + SPItem *item_copied; + if(_fid<=population) + { + // duplicate + SPDocument *doc = SP_OBJECT_DOCUMENT(item); + Inkscape::XML::Document* xml_doc = sp_document_repr_doc(doc); + Inkscape::XML::Node *old_repr = SP_OBJECT_REPR(item); + Inkscape::XML::Node *parent = old_repr->parent(); + Inkscape::XML::Node *copy = old_repr->duplicate(xml_doc); + parent->appendChild(copy); + + SPObject *new_obj = doc->getObjectByRepr(copy); + item_copied = (SPItem *) new_obj; //convertion object->item + Geom::Point center=item->getCenter(); + sp_spray_scale_rel(center,desktop,item_copied, Geom::Scale(_scale,_scale)); + sp_spray_scale_rel(center,desktop,item_copied, Geom::Scale(scale,scale)); + + sp_spray_rotate_rel(center,desktop,item_copied, Geom::Rotate(angle)); + //Move the cursor p + Geom::Point move = (Geom::Point(cos(tilt)*cos(dp)*dr/(1-ratio)+sin(tilt)*sin(dp)*dr/(1+ratio),-sin(tilt)*cos(dp)*dr/(1-ratio)+cos(tilt)*sin(dp)*dr/(1+ratio)))+(p-a->midpoint()); + sp_item_move_rel(item_copied, Geom::Translate(move[Geom::X], -move[Geom::Y])); + did = true; + } + } + } else if (mode == SPRAY_MODE_SINGLE_PATH) { + + SPItem *father; //initial Object + SPItem *item_copied; //Projected Object + SPItem *unionResult; //previous union + SPItem *son; //father copy + + int i=1; + for (GSList *items = g_slist_copy((GSList *) selection->itemList()); + items != NULL; + items = items->next) { + + SPItem *item1 = (SPItem *) items->data; + if (i==1) { + father=item1; + } + if (i==2) { + unionResult=item1; + } + i++; + } + SPDocument *doc = SP_OBJECT_DOCUMENT(father); + Inkscape::XML::Document* xml_doc = sp_document_repr_doc(doc); + Inkscape::XML::Node *old_repr = SP_OBJECT_REPR(father); + Inkscape::XML::Node *parent = old_repr->parent(); + + Geom::OptRect a = father->getBounds(sp_item_i2doc_affine(father)); + if (a) { + if (i==2) { + Inkscape::XML::Node *copy1 = old_repr->duplicate(xml_doc); + parent->appendChild(copy1); + SPObject *new_obj1 = doc->getObjectByRepr(copy1); + son = (SPItem *) new_obj1; // conversion object->item + unionResult=son; + Inkscape::GC::release(copy1); + } + + if (_fid<=population) { // Rules the population of objects sprayed + // duplicates the father + Inkscape::XML::Node *copy2 = old_repr->duplicate(xml_doc); + parent->appendChild(copy2); + SPObject *new_obj2 = doc->getObjectByRepr(copy2); + item_copied = (SPItem *) new_obj2; + + // Move around the cursor + Geom::Point move = (Geom::Point(cos(tilt)*cos(dp)*dr/(1-ratio)+sin(tilt)*sin(dp)*dr/(1+ratio),-sin(tilt)*cos(dp)*dr/(1-ratio)+cos(tilt)*sin(dp)*dr/(1+ratio)))+(p-a->midpoint()); + + Geom::Point center=father->getCenter(); + sp_spray_scale_rel(center,desktop,item_copied, Geom::Scale(_scale,_scale)); + sp_spray_scale_rel(center,desktop,item_copied, Geom::Scale(scale,scale)); + sp_spray_rotate_rel(center,desktop,item_copied, Geom::Rotate(angle)); + sp_item_move_rel(item_copied, Geom::Translate(move[Geom::X], -move[Geom::Y])); + + // union and duplication + selection->clear(); + selection->add(item_copied); + selection->add(unionResult); + sp_selected_path_union(selection->desktop()); + selection->add(father); + Inkscape::GC::release(copy2); + did = true; + } + } + } else if (mode == SPRAY_MODE_CLONE) { + Geom::OptRect a = item->getBounds(sp_item_i2doc_affine(item)); + if (a) { + if(_fid<=population) { + SPItem *item_copied; + SPDocument *doc = SP_OBJECT_DOCUMENT(item); + Inkscape::XML::Document* xml_doc = sp_document_repr_doc(doc); + Inkscape::XML::Node *old_repr = SP_OBJECT_REPR(item); + Inkscape::XML::Node *parent = old_repr->parent(); + + // Creation of the clone + Inkscape::XML::Node *clone = xml_doc->createElement("svg:use"); + // Ad the clone to the list of the father's sons + parent->appendChild(clone); + // Generates the link between father and son attributes + clone->setAttribute("xlink:href", g_strdup_printf("#%s", old_repr->attribute("id")), false); + + SPObject *clone_object = doc->getObjectByRepr(clone); + // conversion object->item + item_copied = (SPItem *) clone_object; + Geom::Point center=item->getCenter(); + sp_spray_scale_rel(center,desktop,item_copied, Geom::Scale(_scale,_scale)); + sp_spray_scale_rel(center,desktop,item_copied, Geom::Scale(scale,scale)); + sp_spray_rotate_rel(center,desktop,item_copied, Geom::Rotate(angle)); + Geom::Point move = (Geom::Point(cos(tilt)*cos(dp)*dr/(1-ratio)+sin(tilt)*sin(dp)*dr/(1+ratio),-sin(tilt)*cos(dp)*dr/(1-ratio)+cos(tilt)*sin(dp)*dr/(1+ratio)))+(p-a->midpoint()); + sp_item_move_rel(item_copied, Geom::Translate(move[Geom::X], -move[Geom::Y])); + + Inkscape::GC::release(clone); + + did = true; + } + } + } + + return did; +} + +bool sp_spray_dilate(SPSprayContext *tc, Geom::Point /*event_p*/, Geom::Point p, Geom::Point vector, bool reverse) +{ + Inkscape::Selection *selection = sp_desktop_selection(SP_EVENT_CONTEXT(tc)->desktop); + SPDesktop *desktop = SP_EVENT_CONTEXT(tc)->desktop; + + + if (selection->isEmpty()) { + return false; + } + + bool did = false; + double radius = get_dilate_radius(tc); + + + + bool do_fill = false, do_stroke = false, do_opacity = false; + guint32 fill_goal = sp_desktop_get_color_tool(desktop, "/tools/spray", true, &do_fill); + guint32 stroke_goal = sp_desktop_get_color_tool(desktop, "/tools/spray", false, &do_stroke); + double opacity_goal = sp_desktop_get_master_opacity_tool(desktop, "/tools/spray", &do_opacity); + if (reverse) { + // RGB inversion + fill_goal = SP_RGBA32_U_COMPOSE( + (255 - SP_RGBA32_R_U(fill_goal)), + (255 - SP_RGBA32_G_U(fill_goal)), + (255 - SP_RGBA32_B_U(fill_goal)), + (255 - SP_RGBA32_A_U(fill_goal))); + stroke_goal = SP_RGBA32_U_COMPOSE( + (255 - SP_RGBA32_R_U(stroke_goal)), + (255 - SP_RGBA32_G_U(stroke_goal)), + (255 - SP_RGBA32_B_U(stroke_goal)), + (255 - SP_RGBA32_A_U(stroke_goal))); + opacity_goal = 1 - opacity_goal; + } + + double path_force = get_path_force(tc); + if (radius == 0 || path_force == 0) { + return false; + } + double path_mean = get_path_mean(tc); + if (radius == 0 || path_mean == 0) { + return false; + } + double path_standard_deviation = get_path_standard_deviation(tc); + if (radius == 0 || path_standard_deviation == 0) { + return false; + } + double move_force = get_move_force(tc); + double move_mean = get_move_mean(tc); + double move_standard_deviation = get_move_standard_deviation(tc); + + + for (GSList *items = g_slist_copy((GSList *) selection->itemList()); + items != NULL; + items = items->next) { + + SPItem *item = (SPItem *) items->data; + + if (is_transform_modes(tc->mode)) { + if (sp_spray_recursive (desktop,selection, item, p, vector, tc->mode, radius, move_force, tc->population,tc->scale, tc->scale_variation, reverse, move_mean, move_standard_deviation,tc->ratio,tc->tilt, tc->rotation_variation, tc->distrib)) + did = true; + } else { + if (sp_spray_recursive (desktop,selection, item, p, vector, tc->mode, radius, path_force, tc->population,tc->scale, tc->scale_variation, reverse, path_mean, path_standard_deviation,tc->ratio,tc->tilt, tc->rotation_variation, tc->distrib)) + did = true; + } + } + + return did; +} + +void sp_spray_update_area(SPSprayContext *tc) +{ + double radius = get_dilate_radius(tc); + Geom::Matrix const sm ( Geom::Scale(radius/(1-tc->ratio), radius/(1+tc->ratio)) ); + sp_canvas_item_affine_absolute(tc->dilate_area, (sm* Geom::Rotate(tc->tilt))* Geom::Translate(SP_EVENT_CONTEXT(tc)->desktop->point())); + sp_canvas_item_show(tc->dilate_area); +} + +void sp_spray_switch_mode(SPSprayContext *tc, gint mode, bool with_shift) +{ + // select the button mode + SP_EVENT_CONTEXT(tc)->desktop->setToolboxSelectOneValue ("spray_tool_mode", mode); + // need to set explicitly, because the prefs may not have changed by the previous + tc->mode = mode; + sp_spray_update_cursor (tc, with_shift); +} + +void sp_spray_switch_mode_temporarily(SPSprayContext *tc, gint mode, bool with_shift) +{ + Inkscape::Preferences *prefs = Inkscape::Preferences::get(); + // Juggling about so that prefs have the old value but tc->mode and the button show new mode: + gint now_mode = prefs->getInt("/tools/spray/mode", 0); + SP_EVENT_CONTEXT(tc)->desktop->setToolboxSelectOneValue ("spray_tool_mode", mode); + // button has changed prefs, restore + prefs->setInt("/tools/spray/mode", now_mode); + // changing prefs changed tc->mode, restore back :) + tc->mode = mode; + sp_spray_update_cursor (tc, with_shift); +} + +gint sp_spray_context_root_handler(SPEventContext *event_context, + GdkEvent *event) +{ + SPSprayContext *tc = SP_SPRAY_CONTEXT(event_context); + SPDesktop *desktop = event_context->desktop; + + gint ret = FALSE; + + switch (event->type) { + case GDK_ENTER_NOTIFY: + sp_canvas_item_show(tc->dilate_area); + break; + case GDK_LEAVE_NOTIFY: + sp_canvas_item_hide(tc->dilate_area); + break; + case GDK_BUTTON_PRESS: + if (event->button.button == 1 && !event_context->space_panning) { + + if (Inkscape::have_viable_layer(desktop, tc->_message_context) == false) { + return TRUE; + } + + Geom::Point const motion_w(event->button.x, + event->button.y); + Geom::Point const motion_dt(desktop->w2d(motion_w)); + tc->last_push = desktop->dt2doc(motion_dt); + + sp_spray_extinput(tc, event); + + sp_canvas_force_full_redraw_after_interruptions(desktop->canvas, 3); + tc->is_drawing = true; + tc->is_dilating = true; + tc->has_dilated = false; + + + + if(tc->is_dilating && event->button.button == 1 && !event_context->space_panning) + + sp_spray_dilate (tc, motion_w, desktop->dt2doc(motion_dt), Geom::Point(0,0), MOD__SHIFT); + + + + tc->has_dilated=true; + + ret = TRUE; + } + break; + case GDK_MOTION_NOTIFY: + { + Geom::Point const motion_w(event->motion.x, + event->motion.y); + Geom::Point motion_dt(desktop->w2d(motion_w)); + Geom::Point motion_doc(desktop->dt2doc(motion_dt)); + sp_spray_extinput(tc, event); + + // draw the dilating cursor + double radius = get_dilate_radius(tc); + Geom::Matrix const sm (Geom::Scale(radius/(1-tc->ratio), radius/(1+tc->ratio)) ); + sp_canvas_item_affine_absolute(tc->dilate_area, (sm*Geom::Rotate(tc->tilt))*Geom::Translate(desktop->w2d(motion_w))); + sp_canvas_item_show(tc->dilate_area); + + guint num = 0; + if (!desktop->selection->isEmpty()) { + num = g_slist_length((GSList *) desktop->selection->itemList()); + } + if (num == 0) { + tc->_message_context->flash(Inkscape::ERROR_MESSAGE, _("<b>Nothing selected!</b> Select objects to spray.")); + } + + // dilating: + if (tc->is_drawing && ( event->motion.state & GDK_BUTTON1_MASK )) { + sp_spray_dilate (tc, motion_w, motion_doc, motion_doc - tc->last_push, event->button.state & GDK_SHIFT_MASK? true : false); + //tc->last_push = motion_doc; + tc->has_dilated = true; + + // it's slow, so prevent clogging up with events + gobble_motion_events(GDK_BUTTON1_MASK); + return TRUE; + } + + } + break; +/*Spray with the scroll*/ + case GDK_SCROLL: + { + if (event->scroll.state & GDK_BUTTON1_MASK) + { + double temp ; + temp=tc->population; + tc->population=1.0; + desktop->setToolboxAdjustmentValue ("population", tc->population * 100); + Geom::Point const scroll_w(event->button.x,event->button.y); + Geom::Point const scroll_dt = desktop->point();; + Geom::Point motion_doc(desktop->dt2doc(scroll_dt)); + switch (event->scroll.direction) + { + case GDK_SCROLL_UP: + { + if (Inkscape::have_viable_layer(desktop, tc->_message_context) == false) + { + return TRUE; + } + tc->last_push = desktop->dt2doc(scroll_dt); + sp_spray_extinput(tc, event); + sp_canvas_force_full_redraw_after_interruptions(desktop->canvas, 3); + tc->is_drawing = true; + tc->is_dilating = true; + tc->has_dilated = false; + if(tc->is_dilating && !event_context->space_panning) + + sp_spray_dilate (tc, scroll_w, desktop->dt2doc(scroll_dt), Geom::Point(0,0),false); + + + + tc->has_dilated=true; + tc->population=temp; + + desktop->setToolboxAdjustmentValue ("population", tc->population * 100); + + ret = TRUE; + } + break; + case GDK_SCROLL_DOWN: + { + if (Inkscape::have_viable_layer(desktop, tc->_message_context) == false) + { + return TRUE; + } + tc->last_push = desktop->dt2doc(scroll_dt); + sp_spray_extinput(tc, event); + sp_canvas_force_full_redraw_after_interruptions(desktop->canvas, 3); + tc->is_drawing = true; + tc->is_dilating = true; + tc->has_dilated = false; + if(tc->is_dilating && !event_context->space_panning) + sp_spray_dilate (tc, scroll_w, desktop->dt2doc(scroll_dt), Geom::Point(0,0), false); + + tc->has_dilated=true; + + ret = TRUE; + + + } + break; +case GDK_SCROLL_RIGHT: + {} break; +case GDK_SCROLL_LEFT: + {} break; + } + } + + + break; + + } + case GDK_BUTTON_RELEASE: + { + Geom::Point const motion_w(event->button.x, event->button.y); + Geom::Point const motion_dt(desktop->w2d(motion_w)); + + sp_canvas_end_forced_full_redraws(desktop->canvas); + tc->is_drawing = false; + + if (tc->is_dilating && event->button.button == 1 && !event_context->space_panning) { + if (!tc->has_dilated) { + // if we did not rub, do a light tap + tc->pressure = 0.03; + sp_spray_dilate (tc, motion_w, desktop->dt2doc(motion_dt), Geom::Point(0,0), MOD__SHIFT); + } + tc->is_dilating = false; + tc->has_dilated = false; + switch (tc->mode) { + case SPRAY_MODE_COPY: + sp_document_done(sp_desktop_document(SP_EVENT_CONTEXT(tc)->desktop), + SP_VERB_CONTEXT_SPRAY, _("Spray with copies")); + break; + case SPRAY_MODE_CLONE: + sp_document_done(sp_desktop_document(SP_EVENT_CONTEXT(tc)->desktop), + SP_VERB_CONTEXT_SPRAY, _("Spray with clones")); + break; + case SPRAY_MODE_SINGLE_PATH: + sp_document_done(sp_desktop_document(SP_EVENT_CONTEXT(tc)->desktop), + SP_VERB_CONTEXT_SPRAY, _("Spray in single path")); + break; + } + } + break; + } + + case GDK_KEY_PRESS: + switch (get_group0_keyval (&event->key)) { +case GDK_j: if (MOD__SHIFT_ONLY) { + sp_spray_switch_mode(tc, SPRAY_MODE_COPY, MOD__SHIFT); + ret = TRUE; + } +case GDK_J: if (MOD__SHIFT_ONLY) { + sp_spray_switch_mode(tc, SPRAY_MODE_COPY, MOD__SHIFT); + ret = TRUE; + } + +break; + case GDK_m: + case GDK_M: + case GDK_0: + + break; + case GDK_i: + case GDK_I: + case GDK_k: if (MOD__SHIFT_ONLY) { + sp_spray_switch_mode(tc, SPRAY_MODE_SINGLE_PATH, MOD__SHIFT); + ret = TRUE; + } + case GDK_K:if (MOD__SHIFT_ONLY) { + sp_spray_switch_mode(tc, SPRAY_MODE_SINGLE_PATH, MOD__SHIFT); + ret = TRUE; + } +break; + + case GDK_l: if (MOD__SHIFT_ONLY) { + sp_spray_switch_mode(tc, SPRAY_MODE_CLONE, MOD__SHIFT); + ret = TRUE; + } + + case GDK_L: + if (MOD__SHIFT_ONLY) { + sp_spray_switch_mode(tc, SPRAY_MODE_CLONE, MOD__SHIFT); + ret = TRUE; + } + break; + case GDK_Up: + case GDK_KP_Up: + if (!MOD__CTRL_ONLY) { + tc->scale += 0.05; + + //desktop->setToolboxAdjustmentValue ("spray-force", tc->force * 100); + ret = TRUE; + } + break; + case GDK_Down: + case GDK_KP_Down: + if (!MOD__CTRL_ONLY) { + + tc->scale -= 0.05; + if (tc->scale < 0.0) + tc->scale = 0.0; + //desktop->setToolboxAdjustmentValue ("spray-force", tc->force * 100); + + ret = TRUE; + + } + break; + case GDK_Right: + case GDK_KP_Right: + if (!MOD__CTRL_ONLY) { + tc->width += 0.01; + if (tc->width > 1.0) + tc->width = 1.0; + desktop->setToolboxAdjustmentValue ("altx-spray", tc->width * 100); // the same spinbutton is for alt+x + sp_spray_update_area(tc); + ret = TRUE; + } + break; + case GDK_Left: + case GDK_KP_Left: + if (!MOD__CTRL_ONLY) { + tc->width -= 0.01; + if (tc->width < 0.01) + tc->width = 0.01; + desktop->setToolboxAdjustmentValue ("altx-spray", tc->width * 100); + sp_spray_update_area(tc); + ret = TRUE; + } + break; + case GDK_Home: + case GDK_KP_Home: + tc->width = 0.01; + desktop->setToolboxAdjustmentValue ("altx-spray", tc->width * 100); + sp_spray_update_area(tc); + ret = TRUE; + break; + case GDK_End: + case GDK_KP_End: + tc->width = 1.0; + desktop->setToolboxAdjustmentValue ("altx-spray", tc->width * 100); + sp_spray_update_area(tc); + ret = TRUE; + break; + case GDK_x: + case GDK_X: + if (MOD__ALT_ONLY) { + desktop->setToolboxFocusTo ("altx-spray"); + ret = TRUE; + } + break; + + case GDK_Shift_L: + case GDK_Shift_R: + sp_spray_update_cursor(tc, true); + break; +/*Set the scale to 1*/ + case GDK_Control_L: + tc->scale=1; + default: + break; + } + break; + + case GDK_KEY_RELEASE: { + Inkscape::Preferences *prefs = Inkscape::Preferences::get(); + switch (get_group0_keyval(&event->key)) { + case GDK_Shift_L: + case GDK_Shift_R: + sp_spray_update_cursor(tc, false); + break; + case GDK_Control_L: + case GDK_Control_R: + sp_spray_switch_mode (tc, prefs->getInt("/tools/spray/mode"), MOD__SHIFT); + tc->_message_context->clear(); + break; + default: + sp_spray_switch_mode (tc, prefs->getInt("/tools/spray/mode"), MOD__SHIFT); + break; + } + } + + default: + break; + } + + if (!ret) { + if (((SPEventContextClass *) parent_class)->root_handler) { + ret = ((SPEventContextClass *) parent_class)->root_handler(event_context, event); + } + } + + return ret; +} + +/* + 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:textwidth=99 : + |