9927919765bd94df74bd6fede5608cab7fc4ae41
1 #define __SP_FLOOD_CONTEXT_C__
3 /** @file
4 * @brief Bucket fill drawing context, works by bitmap filling an area on a rendered version
5 * of the current display and then tracing the result using potrace.
6 */
7 /* Author:
8 * Lauris Kaplinski <lauris@kaplinski.com>
9 * bulia byak <buliabyak@users.sf.net>
10 * John Bintz <jcoswell@coswellproductions.org>
11 *
12 * Copyright (C) 2006 Johan Engelen <johan@shouraizou.nl>
13 * Copyright (C) 2000-2005 authors
14 * Copyright (C) 2000-2001 Ximian, Inc.
15 *
16 * Released under GNU GPL, read the file 'COPYING' for more information
17 */
19 #ifdef HAVE_CONFIG_H
20 #include "config.h"
21 #endif
23 #include <gdk/gdkkeysyms.h>
24 #include <queue>
25 #include <deque>
27 #include "macros.h"
28 #include "display/sp-canvas.h"
29 #include "document.h"
30 #include "sp-namedview.h"
31 #include "sp-object.h"
32 #include "sp-rect.h"
33 #include "selection.h"
34 #include "desktop-handles.h"
35 #include "desktop.h"
36 #include "desktop-style.h"
37 #include "message-stack.h"
38 #include "message-context.h"
39 #include "pixmaps/cursor-paintbucket.xpm"
40 #include "flood-context.h"
41 #include "sp-metrics.h"
42 #include <glibmm/i18n.h>
43 #include "object-edit.h"
44 #include "xml/repr.h"
45 #include "xml/node-event-vector.h"
46 #include "preferences.h"
47 #include "context-fns.h"
48 #include "rubberband.h"
50 #include "display/nr-arena-item.h"
51 #include "display/nr-arena.h"
52 #include "display/nr-arena-image.h"
53 #include "display/canvas-arena.h"
54 #include "libnr/nr-pixops.h"
55 #include "libnr/nr-matrix-translate-ops.h"
56 #include "libnr/nr-scale-ops.h"
57 #include "libnr/nr-scale-translate-ops.h"
58 #include "libnr/nr-translate-matrix-ops.h"
59 #include "libnr/nr-translate-scale-ops.h"
60 #include "libnr/nr-matrix-ops.h"
61 #include <2geom/pathvector.h>
62 #include "sp-item.h"
63 #include "sp-root.h"
64 #include "sp-defs.h"
65 #include "sp-path.h"
66 #include "splivarot.h"
67 #include "livarot/Path.h"
68 #include "livarot/Shape.h"
69 #include "svg/svg.h"
70 #include "color.h"
72 #include "trace/trace.h"
73 #include "trace/imagemap.h"
74 #include "trace/potrace/inkscape-potrace.h"
76 static void sp_flood_context_class_init(SPFloodContextClass *klass);
77 static void sp_flood_context_init(SPFloodContext *flood_context);
78 static void sp_flood_context_dispose(GObject *object);
80 static void sp_flood_context_setup(SPEventContext *ec);
82 static gint sp_flood_context_root_handler(SPEventContext *event_context, GdkEvent *event);
83 static gint sp_flood_context_item_handler(SPEventContext *event_context, SPItem *item, GdkEvent *event);
85 static void sp_flood_finish(SPFloodContext *rc);
87 static SPEventContextClass *parent_class;
90 GtkType sp_flood_context_get_type()
91 {
92 static GType type = 0;
93 if (!type) {
94 GTypeInfo info = {
95 sizeof(SPFloodContextClass),
96 NULL, NULL,
97 (GClassInitFunc) sp_flood_context_class_init,
98 NULL, NULL,
99 sizeof(SPFloodContext),
100 4,
101 (GInstanceInitFunc) sp_flood_context_init,
102 NULL, /* value_table */
103 };
104 type = g_type_register_static(SP_TYPE_EVENT_CONTEXT, "SPFloodContext", &info, (GTypeFlags) 0);
105 }
106 return type;
107 }
109 static void sp_flood_context_class_init(SPFloodContextClass *klass)
110 {
111 GObjectClass *object_class = (GObjectClass *) klass;
112 SPEventContextClass *event_context_class = (SPEventContextClass *) klass;
114 parent_class = (SPEventContextClass *) g_type_class_peek_parent(klass);
116 object_class->dispose = sp_flood_context_dispose;
118 event_context_class->setup = sp_flood_context_setup;
119 event_context_class->root_handler = sp_flood_context_root_handler;
120 event_context_class->item_handler = sp_flood_context_item_handler;
121 }
123 static void sp_flood_context_init(SPFloodContext *flood_context)
124 {
125 SPEventContext *event_context = SP_EVENT_CONTEXT(flood_context);
127 event_context->cursor_shape = cursor_paintbucket_xpm;
128 event_context->hot_x = 11;
129 event_context->hot_y = 30;
130 event_context->xp = 0;
131 event_context->yp = 0;
132 event_context->tolerance = 4;
133 event_context->within_tolerance = false;
134 event_context->item_to_select = NULL;
136 event_context->shape_repr = NULL;
137 event_context->shape_knot_holder = NULL;
139 flood_context->item = NULL;
141 new (&flood_context->sel_changed_connection) sigc::connection();
142 }
144 static void sp_flood_context_dispose(GObject *object)
145 {
146 SPFloodContext *rc = SP_FLOOD_CONTEXT(object);
147 SPEventContext *ec = SP_EVENT_CONTEXT(object);
149 rc->sel_changed_connection.disconnect();
150 rc->sel_changed_connection.~connection();
152 /* fixme: This is necessary because we do not grab */
153 if (rc->item) {
154 sp_flood_finish(rc);
155 }
157 if (ec->shape_repr) { // remove old listener
158 sp_repr_remove_listener_by_data(ec->shape_repr, ec);
159 Inkscape::GC::release(ec->shape_repr);
160 ec->shape_repr = 0;
161 }
163 if (rc->_message_context) {
164 delete rc->_message_context;
165 }
167 G_OBJECT_CLASS(parent_class)->dispose(object);
168 }
170 static Inkscape::XML::NodeEventVector ec_shape_repr_events = {
171 NULL, /* child_added */
172 NULL, /* child_removed */
173 ec_shape_event_attr_changed,
174 NULL, /* content_changed */
175 NULL /* order_changed */
176 };
178 /**
179 \brief Callback that processes the "changed" signal on the selection;
180 destroys old and creates new knotholder
181 */
182 void sp_flood_context_selection_changed(Inkscape::Selection *selection, gpointer data)
183 {
184 SPFloodContext *rc = SP_FLOOD_CONTEXT(data);
185 SPEventContext *ec = SP_EVENT_CONTEXT(rc);
187 if (ec->shape_repr) { // remove old listener
188 sp_repr_remove_listener_by_data(ec->shape_repr, ec);
189 Inkscape::GC::release(ec->shape_repr);
190 ec->shape_repr = 0;
191 }
193 SPItem *item = selection->singleItem();
194 if (item) {
195 Inkscape::XML::Node *shape_repr = SP_OBJECT_REPR(item);
196 if (shape_repr) {
197 ec->shape_repr = shape_repr;
198 Inkscape::GC::anchor(shape_repr);
199 sp_repr_add_listener(shape_repr, &ec_shape_repr_events, ec);
200 }
201 }
202 }
204 static void sp_flood_context_setup(SPEventContext *ec)
205 {
206 SPFloodContext *rc = SP_FLOOD_CONTEXT(ec);
208 if (((SPEventContextClass *) parent_class)->setup) {
209 ((SPEventContextClass *) parent_class)->setup(ec);
210 }
212 SPItem *item = sp_desktop_selection(ec->desktop)->singleItem();
213 if (item) {
214 Inkscape::XML::Node *shape_repr = SP_OBJECT_REPR(item);
215 if (shape_repr) {
216 ec->shape_repr = shape_repr;
217 Inkscape::GC::anchor(shape_repr);
218 sp_repr_add_listener(shape_repr, &ec_shape_repr_events, ec);
219 }
220 }
222 rc->sel_changed_connection.disconnect();
223 rc->sel_changed_connection = sp_desktop_selection(ec->desktop)->connectChanged(
224 sigc::bind(sigc::ptr_fun(&sp_flood_context_selection_changed), (gpointer)rc)
225 );
227 rc->_message_context = new Inkscape::MessageContext((ec->desktop)->messageStack());
229 Inkscape::Preferences *prefs = Inkscape::Preferences::get();
230 if (prefs->getBool("/tools/paintbucket/selcue")) {
231 rc->enableSelectionCue();
232 }
233 }
235 /**
236 * \brief Merge a pixel with the background color.
237 * \param orig The pixel to merge with the background.
238 * \param bg The background color.
239 * \param base The pixel to merge the original and background into.
240 */
241 inline static void
242 merge_pixel_with_background (unsigned char *orig, unsigned char *bg,
243 unsigned char *base)
244 {
245 int precalc_bg_alpha = (255 * (255 - bg[3])) / 255;
247 for (int i = 0; i < 3; i++) {
248 base[i] = precalc_bg_alpha + (bg[i] * bg[3]) / 255;
249 base[i] = (base[i] * (255 - orig[3])) / 255 + (orig[i] * orig[3]) / 255;
250 }
251 }
253 /**
254 * \brief Get the pointer to a pixel in a pixel buffer.
255 * \param px The pixel buffer.
256 * \param x The X coordinate.
257 * \param y The Y coordinate.
258 * \param width The width of the pixel buffer.
259 */
260 inline unsigned char * get_pixel(guchar *px, int x, int y, int width) {
261 return px + (x + y * width) * 4;
262 }
264 inline unsigned char * get_trace_pixel(guchar *trace_px, int x, int y, int width) {
265 return trace_px + (x + y * width);
266 }
268 /**
269 * \brief Generate the list of trace channel selection entries.
270 */
271 GList * flood_channels_dropdown_items_list() {
272 GList *glist = NULL;
274 glist = g_list_append (glist, _("Visible Colors"));
275 glist = g_list_append (glist, _("Red"));
276 glist = g_list_append (glist, _("Green"));
277 glist = g_list_append (glist, _("Blue"));
278 glist = g_list_append (glist, _("Hue"));
279 glist = g_list_append (glist, _("Saturation"));
280 glist = g_list_append (glist, _("Lightness"));
281 glist = g_list_append (glist, _("Alpha"));
283 return glist;
284 }
286 /**
287 * \brief Generate the list of autogap selection entries.
288 */
289 GList * flood_autogap_dropdown_items_list() {
290 GList *glist = NULL;
292 glist = g_list_append (glist, _("None"));
293 glist = g_list_append (glist, _("Small"));
294 glist = g_list_append (glist, _("Medium"));
295 glist = g_list_append (glist, _("Large"));
297 return glist;
298 }
300 /**
301 * \brief Compare a pixel in a pixel buffer with another pixel to determine if a point should be included in the fill operation.
302 * \param check The pixel in the pixel buffer to check.
303 * \param orig The original selected pixel to use as the fill target color.
304 * \param merged_orig_pixel The original pixel merged with the background.
305 * \param dtc The desktop background color.
306 * \param threshold The fill threshold.
307 * \param method The fill method to use as defined in PaintBucketChannels.
308 */
309 static bool compare_pixels(unsigned char *check, unsigned char *orig, unsigned char *merged_orig_pixel, unsigned char *dtc, int threshold, PaintBucketChannels method) {
310 int diff = 0;
311 float hsl_check[3], hsl_orig[3];
313 if ((method == FLOOD_CHANNELS_H) ||
314 (method == FLOOD_CHANNELS_S) ||
315 (method == FLOOD_CHANNELS_L)) {
316 sp_color_rgb_to_hsl_floatv(hsl_check, check[0] / 255.0, check[1] / 255.0, check[2] / 255.0);
317 sp_color_rgb_to_hsl_floatv(hsl_orig, orig[0] / 255.0, orig[1] / 255.0, orig[2] / 255.0);
318 }
320 switch (method) {
321 case FLOOD_CHANNELS_ALPHA:
322 return ((int)abs(check[3] - orig[3]) <= threshold);
323 case FLOOD_CHANNELS_R:
324 return ((int)abs(check[0] - orig[0]) <= threshold);
325 case FLOOD_CHANNELS_G:
326 return ((int)abs(check[1] - orig[1]) <= threshold);
327 case FLOOD_CHANNELS_B:
328 return ((int)abs(check[2] - orig[2]) <= threshold);
329 case FLOOD_CHANNELS_RGB:
330 unsigned char merged_check[3];
332 merge_pixel_with_background(check, dtc, merged_check);
334 for (int i = 0; i < 3; i++) {
335 diff += (int)abs(merged_check[i] - merged_orig_pixel[i]);
336 }
337 return ((diff / 3) <= ((threshold * 3) / 4));
339 case FLOOD_CHANNELS_H:
340 return ((int)(fabs(hsl_check[0] - hsl_orig[0]) * 100.0) <= threshold);
341 case FLOOD_CHANNELS_S:
342 return ((int)(fabs(hsl_check[1] - hsl_orig[1]) * 100.0) <= threshold);
343 case FLOOD_CHANNELS_L:
344 return ((int)(fabs(hsl_check[2] - hsl_orig[2]) * 100.0) <= threshold);
345 }
347 return false;
348 }
350 enum {
351 PIXEL_CHECKED = 1,
352 PIXEL_QUEUED = 2,
353 PIXEL_PAINTABLE = 4,
354 PIXEL_NOT_PAINTABLE = 8,
355 PIXEL_COLORED = 16
356 };
358 static inline bool is_pixel_checked(unsigned char *t) { return (*t & PIXEL_CHECKED) == PIXEL_CHECKED; }
359 static inline bool is_pixel_queued(unsigned char *t) { return (*t & PIXEL_QUEUED) == PIXEL_QUEUED; }
360 static inline bool is_pixel_paintability_checked(unsigned char *t) {
361 return !((*t & PIXEL_PAINTABLE) == 0) && ((*t & PIXEL_NOT_PAINTABLE) == 0);
362 }
363 static inline bool is_pixel_paintable(unsigned char *t) { return (*t & PIXEL_PAINTABLE) == PIXEL_PAINTABLE; }
364 static inline bool is_pixel_colored(unsigned char *t) { return (*t & PIXEL_COLORED) == PIXEL_COLORED; }
366 static inline void mark_pixel_checked(unsigned char *t) { *t |= PIXEL_CHECKED; }
367 static inline void mark_pixel_unchecked(unsigned char *t) { *t ^= PIXEL_CHECKED; }
368 static inline void mark_pixel_queued(unsigned char *t) { *t |= PIXEL_QUEUED; }
369 static inline void mark_pixel_paintable(unsigned char *t) { *t |= PIXEL_PAINTABLE; *t ^= PIXEL_NOT_PAINTABLE; }
370 static inline void mark_pixel_not_paintable(unsigned char *t) { *t |= PIXEL_NOT_PAINTABLE; *t ^= PIXEL_PAINTABLE; }
371 static inline void mark_pixel_colored(unsigned char *t) { *t |= PIXEL_COLORED; }
373 static inline void clear_pixel_paintability(unsigned char *t) { *t ^= PIXEL_PAINTABLE; *t ^= PIXEL_NOT_PAINTABLE; }
375 struct bitmap_coords_info {
376 bool is_left;
377 unsigned int x;
378 unsigned int y;
379 int y_limit;
380 unsigned int width;
381 unsigned int height;
382 unsigned int threshold;
383 unsigned int radius;
384 PaintBucketChannels method;
385 unsigned char *dtc;
386 unsigned char *merged_orig_pixel;
387 Geom::Rect bbox;
388 Geom::Rect screen;
389 unsigned int max_queue_size;
390 unsigned int current_step;
391 };
393 /**
394 * \brief Check if a pixel can be included in the fill.
395 * \param px The rendered pixel buffer to check.
396 * \param trace_t The pixel in the trace pixel buffer to check or mark.
397 * \param x The X coordinate.
398 * \param y The y coordinate.
399 * \param orig_color The original selected pixel to use as the fill target color.
400 * \param bci The bitmap_coords_info structure.
401 */
402 inline static bool check_if_pixel_is_paintable(guchar *px, unsigned char *trace_t, int x, int y, unsigned char *orig_color, bitmap_coords_info bci) {
403 if (is_pixel_paintability_checked(trace_t)) {
404 return is_pixel_paintable(trace_t);
405 } else {
406 unsigned char *t = get_pixel(px, x, y, bci.width);
407 if (compare_pixels(t, orig_color, bci.merged_orig_pixel, bci.dtc, bci.threshold, bci.method)) {
408 mark_pixel_paintable(trace_t);
409 return true;
410 } else {
411 mark_pixel_not_paintable(trace_t);
412 return false;
413 }
414 }
415 }
417 /**
418 * \brief Perform the bitmap-to-vector tracing and place the traced path onto the document.
419 * \param px The trace pixel buffer to trace to SVG.
420 * \param desktop The desktop on which to place the final SVG path.
421 * \param transform The transform to apply to the final SVG path.
422 * \param union_with_selection If true, merge the final SVG path with the current selection.
423 */
424 static void do_trace(bitmap_coords_info bci, guchar *trace_px, SPDesktop *desktop, Geom::Matrix transform, unsigned int min_x, unsigned int max_x, unsigned int min_y, unsigned int max_y, bool union_with_selection) {
425 SPDocument *document = sp_desktop_document(desktop);
427 unsigned char *trace_t;
429 GrayMap *gray_map = GrayMapCreate((max_x - min_x + 1), (max_y - min_y + 1));
430 unsigned int gray_map_y = 0;
431 for (unsigned int y = min_y; y <= max_y; y++) {
432 unsigned long *gray_map_t = gray_map->rows[gray_map_y];
434 trace_t = get_trace_pixel(trace_px, min_x, y, bci.width);
435 for (unsigned int x = min_x; x <= max_x; x++) {
436 *gray_map_t = is_pixel_colored(trace_t) ? GRAYMAP_BLACK : GRAYMAP_WHITE;
437 gray_map_t++;
438 trace_t++;
439 }
440 gray_map_y++;
441 }
443 Inkscape::Trace::Potrace::PotraceTracingEngine pte;
444 pte.keepGoing = 1;
445 std::vector<Inkscape::Trace::TracingEngineResult> results = pte.traceGrayMap(gray_map);
446 gray_map->destroy(gray_map);
448 Inkscape::XML::Node *layer_repr = SP_GROUP(desktop->currentLayer())->repr;
449 Inkscape::XML::Document *xml_doc = sp_document_repr_doc(desktop->doc());
451 long totalNodeCount = 0L;
453 Inkscape::Preferences *prefs = Inkscape::Preferences::get();
454 double offset = prefs->getDouble("/tools/paintbucket/offset", 0.0);
456 for (unsigned int i=0 ; i<results.size() ; i++) {
457 Inkscape::Trace::TracingEngineResult result = results[i];
458 totalNodeCount += result.getNodeCount();
460 Inkscape::XML::Node *pathRepr = xml_doc->createElement("svg:path");
461 /* Set style */
462 sp_desktop_apply_style_tool (desktop, pathRepr, "/tools/paintbucket", false);
464 Geom::PathVector pathv = sp_svg_read_pathv(result.getPathData().c_str());
465 Path *path = new Path;
466 path->LoadPathVector(pathv);
468 if (offset != 0) {
470 Shape *path_shape = new Shape();
472 path->ConvertWithBackData(0.03);
473 path->Fill(path_shape, 0);
474 delete path;
476 Shape *expanded_path_shape = new Shape();
478 expanded_path_shape->ConvertToShape(path_shape, fill_nonZero);
479 path_shape->MakeOffset(expanded_path_shape, offset * desktop->current_zoom(), join_round, 4);
480 expanded_path_shape->ConvertToShape(path_shape, fill_positive);
482 Path *expanded_path = new Path();
484 expanded_path->Reset();
485 expanded_path_shape->ConvertToForme(expanded_path);
486 expanded_path->ConvertEvenLines(1.0);
487 expanded_path->Simplify(1.0);
489 delete path_shape;
490 delete expanded_path_shape;
492 gchar *str = expanded_path->svg_dump_path();
493 if (str && *str) {
494 pathRepr->setAttribute("d", str);
495 g_free(str);
496 } else {
497 desktop->messageStack()->flash(Inkscape::WARNING_MESSAGE, _("<b>Too much inset</b>, the result is empty."));
498 Inkscape::GC::release(pathRepr);
499 g_free(str);
500 return;
501 }
503 delete expanded_path;
505 } else {
506 gchar *str = path->svg_dump_path();
507 delete path;
508 pathRepr->setAttribute("d", str);
509 g_free(str);
510 }
512 layer_repr->addChild(pathRepr, NULL);
514 SPObject *reprobj = document->getObjectByRepr(pathRepr);
515 if (reprobj) {
516 sp_item_write_transform(SP_ITEM(reprobj), pathRepr, transform, NULL);
518 // premultiply the item transform by the accumulated parent transform in the paste layer
519 Geom::Matrix local (sp_item_i2doc_affine(SP_GROUP(desktop->currentLayer())));
520 if (!local.isIdentity()) {
521 gchar const *t_str = pathRepr->attribute("transform");
522 Geom::Matrix item_t (Geom::identity());
523 if (t_str)
524 sp_svg_transform_read(t_str, &item_t);
525 item_t *= local.inverse();
526 // (we're dealing with unattached repr, so we write to its attr instead of using sp_item_set_transform)
527 gchar *affinestr=sp_svg_transform_write(item_t);
528 pathRepr->setAttribute("transform", affinestr);
529 g_free(affinestr);
530 }
532 Inkscape::Selection *selection = sp_desktop_selection(desktop);
534 pathRepr->setPosition(-1);
536 if (union_with_selection) {
537 desktop->messageStack()->flashF(Inkscape::WARNING_MESSAGE, ngettext("Area filled, path with <b>%d</b> node created and unioned with selection.","Area filled, path with <b>%d</b> nodes created and unioned with selection.",sp_nodes_in_path(SP_PATH(reprobj))), sp_nodes_in_path(SP_PATH(reprobj)));
538 selection->add(reprobj);
539 sp_selected_path_union_skip_undo(desktop);
540 } else {
541 desktop->messageStack()->flashF(Inkscape::WARNING_MESSAGE, ngettext("Area filled, path with <b>%d</b> node created.","Area filled, path with <b>%d</b> nodes created.",sp_nodes_in_path(SP_PATH(reprobj))), sp_nodes_in_path(SP_PATH(reprobj)));
542 selection->set(reprobj);
543 }
545 }
547 Inkscape::GC::release(pathRepr);
549 }
550 }
552 /**
553 * \brief The possible return states of perform_bitmap_scanline_check()
554 */
555 enum ScanlineCheckResult {
556 SCANLINE_CHECK_OK,
557 SCANLINE_CHECK_ABORTED,
558 SCANLINE_CHECK_BOUNDARY
559 };
561 /**
562 * \brief Determine if the provided coordinates are within the pixel buffer limits.
563 * \param x The X coordinate.
564 * \param y The Y coordinate.
565 * \param bci The bitmap_coords_info structure.
566 */
567 inline static bool coords_in_range(unsigned int x, unsigned int y, bitmap_coords_info bci) {
568 return (x < bci.width) &&
569 (y < bci.height);
570 }
572 #define PAINT_DIRECTION_LEFT 1
573 #define PAINT_DIRECTION_RIGHT 2
574 #define PAINT_DIRECTION_UP 4
575 #define PAINT_DIRECTION_DOWN 8
576 #define PAINT_DIRECTION_ALL 15
578 /**
579 * \brief Paint a pixel or a square (if autogap is enabled) on the trace pixel buffer
580 * \param px The rendered pixel buffer to check.
581 * \param trace_px The trace pixel buffer.
582 * \param orig_color The original selected pixel to use as the fill target color.
583 * \param bci The bitmap_coords_info structure.
584 * \param original_point_trace_t The original pixel in the trace pixel buffer to check.
585 */
586 inline static unsigned int paint_pixel(guchar *px, guchar *trace_px, unsigned char *orig_color, bitmap_coords_info bci, unsigned char *original_point_trace_t) {
587 if (bci.radius == 0) {
588 mark_pixel_colored(original_point_trace_t);
589 return PAINT_DIRECTION_ALL;
590 } else {
591 unsigned char *trace_t;
593 bool can_paint_up = true;
594 bool can_paint_down = true;
595 bool can_paint_left = true;
596 bool can_paint_right = true;
598 for (unsigned int ty = bci.y - bci.radius; ty <= bci.y + bci.radius; ty++) {
599 for (unsigned int tx = bci.x - bci.radius; tx <= bci.x + bci.radius; tx++) {
600 if (coords_in_range(tx, ty, bci)) {
601 trace_t = get_trace_pixel(trace_px, tx, ty, bci.width);
602 if (!is_pixel_colored(trace_t)) {
603 if (check_if_pixel_is_paintable(px, trace_t, tx, ty, orig_color, bci)) {
604 mark_pixel_colored(trace_t);
605 } else {
606 if (tx < bci.x) { can_paint_left = false; }
607 if (tx > bci.x) { can_paint_right = false; }
608 if (ty < bci.y) { can_paint_up = false; }
609 if (ty > bci.y) { can_paint_down = false; }
610 }
611 }
612 }
613 }
614 }
616 unsigned int paint_directions = 0;
617 if (can_paint_left) { paint_directions += PAINT_DIRECTION_LEFT; }
618 if (can_paint_right) { paint_directions += PAINT_DIRECTION_RIGHT; }
619 if (can_paint_up) { paint_directions += PAINT_DIRECTION_UP; }
620 if (can_paint_down) { paint_directions += PAINT_DIRECTION_DOWN; }
622 return paint_directions;
623 }
624 }
626 /**
627 * \brief Push a point to be checked onto the bottom of the rendered pixel buffer check queue.
628 * \param fill_queue The fill queue to add the point to.
629 * \param max_queue_size The maximum size of the fill queue.
630 * \param trace_t The trace pixel buffer pixel.
631 * \param x The X coordinate.
632 * \param y The Y coordinate.
633 */
634 static void push_point_onto_queue(std::deque<Geom::Point> *fill_queue, unsigned int max_queue_size, unsigned char *trace_t, unsigned int x, unsigned int y) {
635 if (!is_pixel_queued(trace_t)) {
636 if ((fill_queue->size() < max_queue_size)) {
637 fill_queue->push_back(Geom::Point(x, y));
638 mark_pixel_queued(trace_t);
639 }
640 }
641 }
643 /**
644 * \brief Shift a point to be checked onto the top of the rendered pixel buffer check queue.
645 * \param fill_queue The fill queue to add the point to.
646 * \param max_queue_size The maximum size of the fill queue.
647 * \param trace_t The trace pixel buffer pixel.
648 * \param x The X coordinate.
649 * \param y The Y coordinate.
650 */
651 static void shift_point_onto_queue(std::deque<Geom::Point> *fill_queue, unsigned int max_queue_size, unsigned char *trace_t, unsigned int x, unsigned int y) {
652 if (!is_pixel_queued(trace_t)) {
653 if ((fill_queue->size() < max_queue_size)) {
654 fill_queue->push_front(Geom::Point(x, y));
655 mark_pixel_queued(trace_t);
656 }
657 }
658 }
660 /**
661 * \brief Scan a row in the rendered pixel buffer and add points to the fill queue as necessary.
662 * \param fill_queue The fill queue to add the point to.
663 * \param px The rendered pixel buffer.
664 * \param trace_px The trace pixel buffer.
665 * \param orig_color The original selected pixel to use as the fill target color.
666 * \param bci The bitmap_coords_info structure.
667 */
668 static ScanlineCheckResult perform_bitmap_scanline_check(std::deque<Geom::Point> *fill_queue, guchar *px, guchar *trace_px, unsigned char *orig_color, bitmap_coords_info bci, unsigned int *min_x, unsigned int *max_x) {
669 bool aborted = false;
670 bool reached_screen_boundary = false;
671 bool ok;
673 bool keep_tracing;
674 bool initial_paint = true;
676 unsigned char *current_trace_t = get_trace_pixel(trace_px, bci.x, bci.y, bci.width);
677 unsigned int paint_directions;
679 bool currently_painting_top = false;
680 bool currently_painting_bottom = false;
682 unsigned int top_ty = bci.y - 1;
683 unsigned int bottom_ty = bci.y + 1;
685 bool can_paint_top = (top_ty > 0);
686 bool can_paint_bottom = (bottom_ty < bci.height);
688 Geom::Point t = fill_queue->front();
690 do {
691 ok = false;
692 if (bci.is_left) {
693 keep_tracing = (bci.x != 0);
694 } else {
695 keep_tracing = (bci.x < bci.width);
696 }
698 *min_x = MIN(*min_x, bci.x);
699 *max_x = MAX(*max_x, bci.x);
701 if (keep_tracing) {
702 if (check_if_pixel_is_paintable(px, current_trace_t, bci.x, bci.y, orig_color, bci)) {
703 paint_directions = paint_pixel(px, trace_px, orig_color, bci, current_trace_t);
704 if (bci.radius == 0) {
705 mark_pixel_checked(current_trace_t);
706 if ((t[Geom::X] == bci.x) && (t[Geom::Y] == bci.y)) {
707 fill_queue->pop_front(); t = fill_queue->front();
708 }
709 }
711 if (can_paint_top) {
712 if (paint_directions & PAINT_DIRECTION_UP) {
713 unsigned char *trace_t = current_trace_t - bci.width;
714 if (!is_pixel_queued(trace_t)) {
715 bool ok_to_paint = check_if_pixel_is_paintable(px, trace_t, bci.x, top_ty, orig_color, bci);
717 if (initial_paint) { currently_painting_top = !ok_to_paint; }
719 if (ok_to_paint && (!currently_painting_top)) {
720 currently_painting_top = true;
721 push_point_onto_queue(fill_queue, bci.max_queue_size, trace_t, bci.x, top_ty);
722 }
723 if ((!ok_to_paint) && currently_painting_top) {
724 currently_painting_top = false;
725 }
726 }
727 }
728 }
730 if (can_paint_bottom) {
731 if (paint_directions & PAINT_DIRECTION_DOWN) {
732 unsigned char *trace_t = current_trace_t + bci.width;
733 if (!is_pixel_queued(trace_t)) {
734 bool ok_to_paint = check_if_pixel_is_paintable(px, trace_t, bci.x, bottom_ty, orig_color, bci);
736 if (initial_paint) { currently_painting_bottom = !ok_to_paint; }
738 if (ok_to_paint && (!currently_painting_bottom)) {
739 currently_painting_bottom = true;
740 push_point_onto_queue(fill_queue, bci.max_queue_size, trace_t, bci.x, bottom_ty);
741 }
742 if ((!ok_to_paint) && currently_painting_bottom) {
743 currently_painting_bottom = false;
744 }
745 }
746 }
747 }
749 if (bci.is_left) {
750 if (paint_directions & PAINT_DIRECTION_LEFT) {
751 bci.x--; current_trace_t--;
752 ok = true;
753 }
754 } else {
755 if (paint_directions & PAINT_DIRECTION_RIGHT) {
756 bci.x++; current_trace_t++;
757 ok = true;
758 }
759 }
761 initial_paint = false;
762 }
763 } else {
764 if (bci.bbox.min()[Geom::X] > bci.screen.min()[Geom::X]) {
765 aborted = true; break;
766 } else {
767 reached_screen_boundary = true;
768 }
769 }
770 } while (ok);
772 if (aborted) { return SCANLINE_CHECK_ABORTED; }
773 if (reached_screen_boundary) { return SCANLINE_CHECK_BOUNDARY; }
774 return SCANLINE_CHECK_OK;
775 }
777 /**
778 * \brief Sort the rendered pixel buffer check queue vertically.
779 */
780 static bool sort_fill_queue_vertical(Geom::Point a, Geom::Point b) {
781 return a[Geom::Y] > b[Geom::Y];
782 }
784 /**
785 * \brief Sort the rendered pixel buffer check queue horizontally.
786 */
787 static bool sort_fill_queue_horizontal(Geom::Point a, Geom::Point b) {
788 return a[Geom::X] > b[Geom::X];
789 }
791 /**
792 * \brief Perform a flood fill operation.
793 * \param event_context The event context for this tool.
794 * \param event The details of this event.
795 * \param union_with_selection If true, union the new fill with the current selection.
796 * \param is_point_fill If false, use the Rubberband "touch selection" to get the initial points for the fill.
797 * \param is_touch_fill If true, use only the initial contact point in the Rubberband "touch selection" as the fill target color.
798 */
799 static void sp_flood_do_flood_fill(SPEventContext *event_context, GdkEvent *event, bool union_with_selection, bool is_point_fill, bool is_touch_fill) {
800 SPDesktop *desktop = event_context->desktop;
801 SPDocument *document = sp_desktop_document(desktop);
803 /* Create new arena */
804 NRArena *arena = NRArena::create();
805 unsigned dkey = sp_item_display_key_new(1);
807 sp_document_ensure_up_to_date (document);
809 SPItem *document_root = SP_ITEM(SP_DOCUMENT_ROOT(document));
810 boost::optional<Geom::Rect> bbox = document_root->getBounds(Geom::identity());
812 if (!bbox) {
813 desktop->messageStack()->flash(Inkscape::WARNING_MESSAGE, _("<b>Area is not bounded</b>, cannot fill."));
814 return;
815 }
817 double zoom_scale = desktop->current_zoom();
819 // Render 160% of the physical display to the render pixel buffer, so that available
820 // fill areas off the screen can be included in the fill.
821 double padding = 1.6;
823 Geom::Rect screen = desktop->get_display_area();
825 unsigned int width = (int)ceil(screen.width() * zoom_scale * padding);
826 unsigned int height = (int)ceil(screen.height() * zoom_scale * padding);
828 Geom::Point origin(screen.min()[Geom::X],
829 sp_document_height(document) - screen.height() - screen.min()[Geom::Y]);
831 origin[Geom::X] = origin[Geom::X] + (screen.width() * ((1 - padding) / 2));
832 origin[Geom::Y] = origin[Geom::Y] + (screen.height() * ((1 - padding) / 2));
834 Geom::Scale scale(zoom_scale, zoom_scale);
835 Geom::Matrix affine = scale * Geom::Translate(-origin * scale);
837 /* Create ArenaItems and set transform */
838 NRArenaItem *root = sp_item_invoke_show(SP_ITEM(sp_document_root(document)), arena, dkey, SP_ITEM_SHOW_DISPLAY);
839 nr_arena_item_set_transform(NR_ARENA_ITEM(root), affine);
841 NRGC gc(NULL);
842 gc.transform.setIdentity();
844 NRRectL final_bbox;
845 final_bbox.x0 = 0;
846 final_bbox.y0 = 0; //row;
847 final_bbox.x1 = width;
848 final_bbox.y1 = height; //row + num_rows;
850 nr_arena_item_invoke_update(root, &final_bbox, &gc, NR_ARENA_ITEM_STATE_ALL, NR_ARENA_ITEM_STATE_NONE);
852 guchar *px = g_new(guchar, 4 * width * height);
854 NRPixBlock B;
855 nr_pixblock_setup_extern( &B, NR_PIXBLOCK_MODE_R8G8B8A8N,
856 final_bbox.x0, final_bbox.y0, final_bbox.x1, final_bbox.y1,
857 px, 4 * width, FALSE, FALSE );
859 SPNamedView *nv = sp_desktop_namedview(desktop);
860 unsigned long bgcolor = nv->pagecolor;
862 unsigned char dtc[4];
863 dtc[0] = NR_RGBA32_R(bgcolor);
864 dtc[1] = NR_RGBA32_G(bgcolor);
865 dtc[2] = NR_RGBA32_B(bgcolor);
866 dtc[3] = NR_RGBA32_A(bgcolor);
868 for (unsigned int fy = 0; fy < height; fy++) {
869 guchar *p = NR_PIXBLOCK_PX(&B) + fy * B.rs;
870 for (unsigned int fx = 0; fx < width; fx++) {
871 for (int i = 0; i < 4; i++) {
872 *p++ = dtc[i];
873 }
874 }
875 }
877 nr_arena_item_invoke_render(NULL, root, &final_bbox, &B, NR_ARENA_ITEM_RENDER_NO_CACHE );
878 nr_pixblock_release(&B);
880 // Hide items
881 sp_item_invoke_hide(SP_ITEM(sp_document_root(document)), dkey);
883 nr_object_unref((NRObject *) arena);
885 guchar *trace_px = g_new(guchar, width * height);
886 memset(trace_px, 0x00, width * height);
888 std::deque<Geom::Point> fill_queue;
889 std::queue<Geom::Point> color_queue;
891 std::vector<Geom::Point> fill_points;
893 bool aborted = false;
894 int y_limit = height - 1;
896 Inkscape::Preferences *prefs = Inkscape::Preferences::get();
897 PaintBucketChannels method = (PaintBucketChannels) prefs->getInt("/tools/paintbucket/channels", 0);
898 int threshold = prefs->getIntLimited("/tools/paintbucket/threshold", 1, 0, 100);
900 switch(method) {
901 case FLOOD_CHANNELS_ALPHA:
902 case FLOOD_CHANNELS_RGB:
903 case FLOOD_CHANNELS_R:
904 case FLOOD_CHANNELS_G:
905 case FLOOD_CHANNELS_B:
906 threshold = (255 * threshold) / 100;
907 break;
908 case FLOOD_CHANNELS_H:
909 case FLOOD_CHANNELS_S:
910 case FLOOD_CHANNELS_L:
911 break;
912 }
914 bitmap_coords_info bci;
916 bci.y_limit = y_limit;
917 bci.width = width;
918 bci.height = height;
919 bci.threshold = threshold;
920 bci.method = method;
921 bci.bbox = *bbox;
922 bci.screen = screen;
923 bci.dtc = dtc;
924 bci.radius = prefs->getIntLimited("/tools/paintbucket/autogap", 0, 0, 3);
925 bci.max_queue_size = (width * height) / 4;
926 bci.current_step = 0;
928 if (is_point_fill) {
929 fill_points.push_back(Geom::Point(event->button.x, event->button.y));
930 } else {
931 Inkscape::Rubberband::Rubberband *r = Inkscape::Rubberband::get(desktop);
932 fill_points = r->getPoints();
933 }
935 for (unsigned int i = 0; i < fill_points.size(); i++) {
936 Geom::Point pw = Geom::Point(fill_points[i][Geom::X] / zoom_scale, sp_document_height(document) + (fill_points[i][Geom::Y] / zoom_scale)) * affine;
938 pw[Geom::X] = (int)MIN(width - 1, MAX(0, pw[Geom::X]));
939 pw[Geom::Y] = (int)MIN(height - 1, MAX(0, pw[Geom::Y]));
941 if (is_touch_fill) {
942 if (i == 0) {
943 color_queue.push(pw);
944 } else {
945 unsigned char *trace_t = get_trace_pixel(trace_px, (int)pw[Geom::X], (int)pw[Geom::Y], width);
946 push_point_onto_queue(&fill_queue, bci.max_queue_size, trace_t, (int)pw[Geom::X], (int)pw[Geom::Y]);
947 }
948 } else {
949 color_queue.push(pw);
950 }
951 }
953 bool reached_screen_boundary = false;
955 bool first_run = true;
957 unsigned long sort_size_threshold = 5;
959 unsigned int min_y = height;
960 unsigned int max_y = 0;
961 unsigned int min_x = width;
962 unsigned int max_x = 0;
964 while (!color_queue.empty() && !aborted) {
965 Geom::Point color_point = color_queue.front();
966 color_queue.pop();
968 int cx = (int)color_point[Geom::X];
969 int cy = (int)color_point[Geom::Y];
971 unsigned char *orig_px = get_pixel(px, cx, cy, width);
972 unsigned char orig_color[4];
973 for (int i = 0; i < 4; i++) { orig_color[i] = orig_px[i]; }
975 unsigned char merged_orig[3];
977 merge_pixel_with_background(orig_color, dtc, merged_orig);
979 bci.merged_orig_pixel = merged_orig;
981 unsigned char *trace_t = get_trace_pixel(trace_px, cx, cy, width);
982 if (!is_pixel_checked(trace_t) && !is_pixel_colored(trace_t)) {
983 if (check_if_pixel_is_paintable(px, trace_px, cx, cy, orig_color, bci)) {
984 shift_point_onto_queue(&fill_queue, bci.max_queue_size, trace_t, cx, cy);
986 if (!first_run) {
987 for (unsigned int y = 0; y < height; y++) {
988 trace_t = get_trace_pixel(trace_px, 0, y, width);
989 for (unsigned int x = 0; x < width; x++) {
990 clear_pixel_paintability(trace_t);
991 trace_t++;
992 }
993 }
994 }
995 first_run = false;
996 }
997 }
999 unsigned long old_fill_queue_size = fill_queue.size();
1001 while (!fill_queue.empty() && !aborted) {
1002 Geom::Point cp = fill_queue.front();
1004 if (bci.radius == 0) {
1005 unsigned long new_fill_queue_size = fill_queue.size();
1007 /*
1008 * To reduce the number of points in the fill queue, periodically
1009 * resort all of the points in the queue so that scanline checks
1010 * can complete more quickly. A point cannot be checked twice
1011 * in a normal scanline checks, so forcing scanline checks to start
1012 * from one corner of the rendered area as often as possible
1013 * will reduce the number of points that need to be checked and queued.
1014 */
1015 if (new_fill_queue_size > sort_size_threshold) {
1016 if (new_fill_queue_size > old_fill_queue_size) {
1017 std::sort(fill_queue.begin(), fill_queue.end(), sort_fill_queue_vertical);
1019 std::deque<Geom::Point>::iterator start_sort = fill_queue.begin();
1020 std::deque<Geom::Point>::iterator end_sort = fill_queue.begin();
1021 unsigned int sort_y = (unsigned int)cp[Geom::Y];
1022 unsigned int current_y = sort_y;
1024 for (std::deque<Geom::Point>::iterator i = fill_queue.begin(); i != fill_queue.end(); i++) {
1025 Geom::Point current = *i;
1026 current_y = (unsigned int)current[Geom::Y];
1027 if (current_y != sort_y) {
1028 if (start_sort != end_sort) {
1029 std::sort(start_sort, end_sort, sort_fill_queue_horizontal);
1030 }
1031 sort_y = current_y;
1032 start_sort = i;
1033 }
1034 end_sort = i;
1035 }
1036 if (start_sort != end_sort) {
1037 std::sort(start_sort, end_sort, sort_fill_queue_horizontal);
1038 }
1040 cp = fill_queue.front();
1041 }
1042 }
1044 old_fill_queue_size = new_fill_queue_size;
1045 }
1047 fill_queue.pop_front();
1049 int x = (int)cp[Geom::X];
1050 int y = (int)cp[Geom::Y];
1052 min_y = MIN((unsigned int)y, min_y);
1053 max_y = MAX((unsigned int)y, max_y);
1055 unsigned char *trace_t = get_trace_pixel(trace_px, x, y, width);
1056 if (!is_pixel_checked(trace_t)) {
1057 mark_pixel_checked(trace_t);
1059 if (y == 0) {
1060 if (bbox->min()[Geom::Y] > screen.min()[Geom::Y]) {
1061 aborted = true; break;
1062 } else {
1063 reached_screen_boundary = true;
1064 }
1065 }
1067 if (y == y_limit) {
1068 if (bbox->max()[Geom::Y] < screen.max()[Geom::Y]) {
1069 aborted = true; break;
1070 } else {
1071 reached_screen_boundary = true;
1072 }
1073 }
1075 bci.is_left = true;
1076 bci.x = x;
1077 bci.y = y;
1079 ScanlineCheckResult result = perform_bitmap_scanline_check(&fill_queue, px, trace_px, orig_color, bci, &min_x, &max_x);
1081 switch (result) {
1082 case SCANLINE_CHECK_ABORTED:
1083 aborted = true;
1084 break;
1085 case SCANLINE_CHECK_BOUNDARY:
1086 reached_screen_boundary = true;
1087 break;
1088 default:
1089 break;
1090 }
1092 if (bci.x < width) {
1093 trace_t++;
1094 if (!is_pixel_checked(trace_t) && !is_pixel_queued(trace_t)) {
1095 mark_pixel_checked(trace_t);
1096 bci.is_left = false;
1097 bci.x = x + 1;
1099 result = perform_bitmap_scanline_check(&fill_queue, px, trace_px, orig_color, bci, &min_x, &max_x);
1101 switch (result) {
1102 case SCANLINE_CHECK_ABORTED:
1103 aborted = true;
1104 break;
1105 case SCANLINE_CHECK_BOUNDARY:
1106 reached_screen_boundary = true;
1107 break;
1108 default:
1109 break;
1110 }
1111 }
1112 }
1113 }
1115 bci.current_step++;
1117 if (bci.current_step > bci.max_queue_size) {
1118 aborted = true;
1119 }
1120 }
1121 }
1123 g_free(px);
1125 if (aborted) {
1126 g_free(trace_px);
1127 desktop->messageStack()->flash(Inkscape::WARNING_MESSAGE, _("<b>Area is not bounded</b>, cannot fill."));
1128 return;
1129 }
1131 if (reached_screen_boundary) {
1132 desktop->messageStack()->flash(Inkscape::WARNING_MESSAGE, _("<b>Only the visible part of the bounded area was filled.</b> If you want to fill all of the area, undo, zoom out, and fill again."));
1133 }
1135 unsigned int trace_padding = bci.radius + 1;
1136 if (min_y > trace_padding) { min_y -= trace_padding; }
1137 if (max_y < (y_limit - trace_padding)) { max_y += trace_padding; }
1138 if (min_x > trace_padding) { min_x -= trace_padding; }
1139 if (max_x < (width - 1 - trace_padding)) { max_x += trace_padding; }
1141 Geom::Point min_start = Geom::Point(min_x, min_y);
1143 affine = scale * Geom::Translate(-origin * scale - min_start);
1144 Geom::Matrix inverted_affine = Geom::Matrix(affine).inverse();
1146 do_trace(bci, trace_px, desktop, inverted_affine, min_x, max_x, min_y, max_y, union_with_selection);
1148 g_free(trace_px);
1150 sp_document_done(document, SP_VERB_CONTEXT_PAINTBUCKET, _("Fill bounded area"));
1151 }
1153 static gint sp_flood_context_item_handler(SPEventContext *event_context, SPItem *item, GdkEvent *event)
1154 {
1155 gint ret = FALSE;
1157 SPDesktop *desktop = event_context->desktop;
1159 switch (event->type) {
1160 case GDK_BUTTON_PRESS:
1161 if ((event->button.state & GDK_CONTROL_MASK) && event->button.button == 1 && !event_context->space_panning) {
1162 Geom::Point const button_w(event->button.x,
1163 event->button.y);
1165 SPItem *item = sp_event_context_find_item (desktop, button_w, TRUE, TRUE);
1167 Inkscape::XML::Node *pathRepr = SP_OBJECT_REPR(item);
1168 /* Set style */
1169 sp_desktop_apply_style_tool (desktop, pathRepr, "/tools/paintbucket", false);
1170 sp_document_done(sp_desktop_document(desktop), SP_VERB_CONTEXT_PAINTBUCKET, _("Set style on object"));
1171 ret = TRUE;
1172 }
1173 break;
1174 default:
1175 break;
1176 }
1178 if (((SPEventContextClass *) parent_class)->item_handler) {
1179 ret = ((SPEventContextClass *) parent_class)->item_handler(event_context, item, event);
1180 }
1182 return ret;
1183 }
1185 static gint sp_flood_context_root_handler(SPEventContext *event_context, GdkEvent *event)
1186 {
1187 static bool dragging;
1189 gint ret = FALSE;
1190 SPDesktop *desktop = event_context->desktop;
1192 switch (event->type) {
1193 case GDK_BUTTON_PRESS:
1194 if (event->button.button == 1 && !event_context->space_panning) {
1195 if (!(event->button.state & GDK_CONTROL_MASK)) {
1196 Geom::Point const button_w(event->button.x,
1197 event->button.y);
1199 if (Inkscape::have_viable_layer(desktop, event_context->defaultMessageContext())) {
1200 // save drag origin
1201 event_context->xp = (gint) button_w[Geom::X];
1202 event_context->yp = (gint) button_w[Geom::Y];
1203 event_context->within_tolerance = true;
1205 dragging = true;
1207 Geom::Point const p(desktop->w2d(button_w));
1208 Inkscape::Rubberband::get(desktop)->setMode(RUBBERBAND_MODE_TOUCHPATH);
1209 Inkscape::Rubberband::get(desktop)->start(desktop, p);
1210 }
1211 }
1212 }
1213 case GDK_MOTION_NOTIFY:
1214 if ( dragging
1215 && ( event->motion.state & GDK_BUTTON1_MASK ) && !event_context->space_panning)
1216 {
1217 if ( event_context->within_tolerance
1218 && ( abs( (gint) event->motion.x - event_context->xp ) < event_context->tolerance )
1219 && ( abs( (gint) event->motion.y - event_context->yp ) < event_context->tolerance ) ) {
1220 break; // do not drag if we're within tolerance from origin
1221 }
1223 event_context->within_tolerance = false;
1225 Geom::Point const motion_pt(event->motion.x, event->motion.y);
1226 Geom::Point const p(desktop->w2d(motion_pt));
1227 if (Inkscape::Rubberband::get(desktop)->is_started()) {
1228 Inkscape::Rubberband::get(desktop)->move(p);
1229 event_context->defaultMessageContext()->set(Inkscape::NORMAL_MESSAGE, _("<b>Draw over</b> areas to add to fill, hold <b>Alt</b> for touch fill"));
1230 gobble_motion_events(GDK_BUTTON1_MASK);
1231 }
1232 }
1233 break;
1235 case GDK_BUTTON_RELEASE:
1236 if (event->button.button == 1 && !event_context->space_panning) {
1237 Inkscape::Rubberband::Rubberband *r = Inkscape::Rubberband::get(desktop);
1238 if (r->is_started()) {
1239 // set "busy" cursor
1240 desktop->setWaitingCursor();
1242 if (SP_IS_EVENT_CONTEXT(event_context)) {
1243 // Since setWaitingCursor runs main loop iterations, we may have already left this tool!
1244 // So check if the tool is valid before doing anything
1245 dragging = false;
1247 bool is_point_fill = event_context->within_tolerance;
1248 bool is_touch_fill = event->button.state & GDK_MOD1_MASK;
1250 sp_flood_do_flood_fill(event_context, event, event->button.state & GDK_SHIFT_MASK, is_point_fill, is_touch_fill);
1252 desktop->clearWaitingCursor();
1253 // restore cursor when done; note that it may already be different if e.g. user
1254 // switched to another tool during interruptible tracing or drawing, in which case do nothing
1256 ret = TRUE;
1257 }
1259 r->stop();
1261 if (SP_IS_EVENT_CONTEXT(event_context)) {
1262 event_context->defaultMessageContext()->clear();
1263 }
1264 }
1265 }
1266 break;
1267 case GDK_KEY_PRESS:
1268 switch (get_group0_keyval (&event->key)) {
1269 case GDK_Up:
1270 case GDK_Down:
1271 case GDK_KP_Up:
1272 case GDK_KP_Down:
1273 // prevent the zoom field from activation
1274 if (!MOD__CTRL_ONLY)
1275 ret = TRUE;
1276 break;
1277 default:
1278 break;
1279 }
1280 break;
1281 default:
1282 break;
1283 }
1285 if (!ret) {
1286 if (((SPEventContextClass *) parent_class)->root_handler) {
1287 ret = ((SPEventContextClass *) parent_class)->root_handler(event_context, event);
1288 }
1289 }
1291 return ret;
1292 }
1295 static void sp_flood_finish(SPFloodContext *rc)
1296 {
1297 rc->_message_context->clear();
1299 if ( rc->item != NULL ) {
1300 SPDesktop * desktop;
1302 desktop = SP_EVENT_CONTEXT_DESKTOP(rc);
1304 SP_OBJECT(rc->item)->updateRepr();
1306 sp_canvas_end_forced_full_redraws(desktop->canvas);
1308 sp_desktop_selection(desktop)->set(rc->item);
1309 sp_document_done(sp_desktop_document(desktop), SP_VERB_CONTEXT_PAINTBUCKET,
1310 _("Fill bounded area"));
1312 rc->item = NULL;
1313 }
1314 }
1316 void flood_channels_set_channels( gint channels )
1317 {
1318 Inkscape::Preferences *prefs = Inkscape::Preferences::get();
1319 prefs->setInt("/tools/paintbucket/channels", channels);
1320 }
1322 /*
1323 Local Variables:
1324 mode:c++
1325 c-file-style:"stroustrup"
1326 c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
1327 indent-tabs-mode:nil
1328 fill-column:99
1329 End:
1330 */
1331 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=99 :