1 /** @file
2 * @brief Bucket fill drawing context, works by bitmap filling an area on a rendered version
3 * of the current display and then tracing the result using potrace.
4 */
5 /* Author:
6 * Lauris Kaplinski <lauris@kaplinski.com>
7 * bulia byak <buliabyak@users.sf.net>
8 * John Bintz <jcoswell@coswellproductions.org>
9 * Jon A. Cruz <jon@joncruz.org>
10 * Abhishek Sharma
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"
49 #include "shape-editor.h"
51 #include "display/nr-arena-item.h"
52 #include "display/nr-arena.h"
53 #include "display/nr-arena-image.h"
54 #include "display/canvas-arena.h"
55 #include "libnr/nr-pixops.h"
56 #include "libnr/nr-matrix-translate-ops.h"
57 #include "libnr/nr-scale-ops.h"
58 #include "libnr/nr-scale-translate-ops.h"
59 #include "libnr/nr-translate-matrix-ops.h"
60 #include "libnr/nr-translate-scale-ops.h"
61 #include "libnr/nr-matrix-ops.h"
62 #include <2geom/pathvector.h>
63 #include "sp-item.h"
64 #include "sp-root.h"
65 #include "sp-defs.h"
66 #include "sp-path.h"
67 #include "splivarot.h"
68 #include "livarot/Path.h"
69 #include "livarot/Shape.h"
70 #include "svg/svg.h"
71 #include "color.h"
73 #include "trace/trace.h"
74 #include "trace/imagemap.h"
75 #include "trace/potrace/inkscape-potrace.h"
77 using Inkscape::DocumentUndo;
79 static void sp_flood_context_class_init(SPFloodContextClass *klass);
80 static void sp_flood_context_init(SPFloodContext *flood_context);
81 static void sp_flood_context_dispose(GObject *object);
83 static void sp_flood_context_setup(SPEventContext *ec);
85 static gint sp_flood_context_root_handler(SPEventContext *event_context, GdkEvent *event);
86 static gint sp_flood_context_item_handler(SPEventContext *event_context, SPItem *item, GdkEvent *event);
88 static void sp_flood_finish(SPFloodContext *rc);
90 static SPEventContextClass *parent_class;
93 GtkType sp_flood_context_get_type()
94 {
95 static GType type = 0;
96 if (!type) {
97 GTypeInfo info = {
98 sizeof(SPFloodContextClass),
99 NULL, NULL,
100 (GClassInitFunc) sp_flood_context_class_init,
101 NULL, NULL,
102 sizeof(SPFloodContext),
103 4,
104 (GInstanceInitFunc) sp_flood_context_init,
105 NULL, /* value_table */
106 };
107 type = g_type_register_static(SP_TYPE_EVENT_CONTEXT, "SPFloodContext", &info, (GTypeFlags) 0);
108 }
109 return type;
110 }
112 static void sp_flood_context_class_init(SPFloodContextClass *klass)
113 {
114 GObjectClass *object_class = (GObjectClass *) klass;
115 SPEventContextClass *event_context_class = (SPEventContextClass *) klass;
117 parent_class = (SPEventContextClass *) g_type_class_peek_parent(klass);
119 object_class->dispose = sp_flood_context_dispose;
121 event_context_class->setup = sp_flood_context_setup;
122 event_context_class->root_handler = sp_flood_context_root_handler;
123 event_context_class->item_handler = sp_flood_context_item_handler;
124 }
126 static void sp_flood_context_init(SPFloodContext *flood_context)
127 {
128 SPEventContext *event_context = SP_EVENT_CONTEXT(flood_context);
130 event_context->cursor_shape = cursor_paintbucket_xpm;
131 event_context->hot_x = 11;
132 event_context->hot_y = 30;
133 event_context->xp = 0;
134 event_context->yp = 0;
135 event_context->tolerance = 4;
136 event_context->within_tolerance = false;
137 event_context->item_to_select = 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 delete ec->shape_editor;
153 ec->shape_editor = NULL;
155 /* fixme: This is necessary because we do not grab */
156 if (rc->item) {
157 sp_flood_finish(rc);
158 }
160 if (rc->_message_context) {
161 delete rc->_message_context;
162 }
164 G_OBJECT_CLASS(parent_class)->dispose(object);
165 }
167 /**
168 \brief Callback that processes the "changed" signal on the selection;
169 destroys old and creates new knotholder
170 */
171 void sp_flood_context_selection_changed(Inkscape::Selection *selection, gpointer data)
172 {
173 SPFloodContext *rc = SP_FLOOD_CONTEXT(data);
174 SPEventContext *ec = SP_EVENT_CONTEXT(rc);
176 ec->shape_editor->unset_item(SH_KNOTHOLDER);
177 SPItem *item = selection->singleItem();
178 ec->shape_editor->set_item(item, SH_KNOTHOLDER);
179 }
181 static void sp_flood_context_setup(SPEventContext *ec)
182 {
183 SPFloodContext *rc = SP_FLOOD_CONTEXT(ec);
185 if (((SPEventContextClass *) parent_class)->setup) {
186 ((SPEventContextClass *) parent_class)->setup(ec);
187 }
189 ec->shape_editor = new ShapeEditor(ec->desktop);
191 SPItem *item = sp_desktop_selection(ec->desktop)->singleItem();
192 if (item) {
193 ec->shape_editor->set_item(item, SH_KNOTHOLDER);
194 }
196 rc->sel_changed_connection.disconnect();
197 rc->sel_changed_connection = sp_desktop_selection(ec->desktop)->connectChanged(
198 sigc::bind(sigc::ptr_fun(&sp_flood_context_selection_changed), (gpointer)rc)
199 );
201 rc->_message_context = new Inkscape::MessageContext((ec->desktop)->messageStack());
203 Inkscape::Preferences *prefs = Inkscape::Preferences::get();
204 if (prefs->getBool("/tools/paintbucket/selcue")) {
205 rc->enableSelectionCue();
206 }
207 }
209 /**
210 * \brief Merge a pixel with the background color.
211 * \param orig The pixel to merge with the background.
212 * \param bg The background color.
213 * \param base The pixel to merge the original and background into.
214 */
215 inline static void
216 merge_pixel_with_background (unsigned char *orig, unsigned char *bg,
217 unsigned char *base)
218 {
219 int precalc_bg_alpha = (255 * (255 - bg[3])) / 255;
221 for (int i = 0; i < 3; i++) {
222 base[i] = precalc_bg_alpha + (bg[i] * bg[3]) / 255;
223 base[i] = (base[i] * (255 - orig[3])) / 255 + (orig[i] * orig[3]) / 255;
224 }
225 }
227 /**
228 * \brief Get the pointer to a pixel in a pixel buffer.
229 * \param px The pixel buffer.
230 * \param x The X coordinate.
231 * \param y The Y coordinate.
232 * \param width The width of the pixel buffer.
233 */
234 inline unsigned char * get_pixel(guchar *px, int x, int y, int width) {
235 return px + (x + y * width) * 4;
236 }
238 inline unsigned char * get_trace_pixel(guchar *trace_px, int x, int y, int width) {
239 return trace_px + (x + y * width);
240 }
242 /**
243 * \brief Generate the list of trace channel selection entries.
244 */
245 GList * flood_channels_dropdown_items_list() {
246 GList *glist = NULL;
248 glist = g_list_append (glist, _("Visible Colors"));
249 glist = g_list_append (glist, _("Red"));
250 glist = g_list_append (glist, _("Green"));
251 glist = g_list_append (glist, _("Blue"));
252 glist = g_list_append (glist, _("Hue"));
253 glist = g_list_append (glist, _("Saturation"));
254 glist = g_list_append (glist, _("Lightness"));
255 glist = g_list_append (glist, _("Alpha"));
257 return glist;
258 }
260 /**
261 * \brief Generate the list of autogap selection entries.
262 */
263 GList * flood_autogap_dropdown_items_list() {
264 GList *glist = NULL;
266 glist = g_list_append (glist, (void*) C_("Flood autogap", "None"));
267 glist = g_list_append (glist, (void*) C_("Flood autogap", "Small"));
268 glist = g_list_append (glist, (void*) C_("Flood autogap", "Medium"));
269 glist = g_list_append (glist, (void*) C_("Flood autogap", "Large"));
271 return glist;
272 }
274 /**
275 * \brief Compare a pixel in a pixel buffer with another pixel to determine if a point should be included in the fill operation.
276 * \param check The pixel in the pixel buffer to check.
277 * \param orig The original selected pixel to use as the fill target color.
278 * \param merged_orig_pixel The original pixel merged with the background.
279 * \param dtc The desktop background color.
280 * \param threshold The fill threshold.
281 * \param method The fill method to use as defined in PaintBucketChannels.
282 */
283 static bool compare_pixels(unsigned char *check, unsigned char *orig, unsigned char *merged_orig_pixel, unsigned char *dtc, int threshold, PaintBucketChannels method) {
284 int diff = 0;
285 float hsl_check[3], hsl_orig[3];
287 if ((method == FLOOD_CHANNELS_H) ||
288 (method == FLOOD_CHANNELS_S) ||
289 (method == FLOOD_CHANNELS_L)) {
290 sp_color_rgb_to_hsl_floatv(hsl_check, check[0] / 255.0, check[1] / 255.0, check[2] / 255.0);
291 sp_color_rgb_to_hsl_floatv(hsl_orig, orig[0] / 255.0, orig[1] / 255.0, orig[2] / 255.0);
292 }
294 switch (method) {
295 case FLOOD_CHANNELS_ALPHA:
296 return ((int)abs(check[3] - orig[3]) <= threshold);
297 case FLOOD_CHANNELS_R:
298 return ((int)abs(check[0] - orig[0]) <= threshold);
299 case FLOOD_CHANNELS_G:
300 return ((int)abs(check[1] - orig[1]) <= threshold);
301 case FLOOD_CHANNELS_B:
302 return ((int)abs(check[2] - orig[2]) <= threshold);
303 case FLOOD_CHANNELS_RGB:
304 unsigned char merged_check[3];
306 merge_pixel_with_background(check, dtc, merged_check);
308 for (int i = 0; i < 3; i++) {
309 diff += (int)abs(merged_check[i] - merged_orig_pixel[i]);
310 }
311 return ((diff / 3) <= ((threshold * 3) / 4));
313 case FLOOD_CHANNELS_H:
314 return ((int)(fabs(hsl_check[0] - hsl_orig[0]) * 100.0) <= threshold);
315 case FLOOD_CHANNELS_S:
316 return ((int)(fabs(hsl_check[1] - hsl_orig[1]) * 100.0) <= threshold);
317 case FLOOD_CHANNELS_L:
318 return ((int)(fabs(hsl_check[2] - hsl_orig[2]) * 100.0) <= threshold);
319 }
321 return false;
322 }
324 enum {
325 PIXEL_CHECKED = 1,
326 PIXEL_QUEUED = 2,
327 PIXEL_PAINTABLE = 4,
328 PIXEL_NOT_PAINTABLE = 8,
329 PIXEL_COLORED = 16
330 };
332 static inline bool is_pixel_checked(unsigned char *t) { return (*t & PIXEL_CHECKED) == PIXEL_CHECKED; }
333 static inline bool is_pixel_queued(unsigned char *t) { return (*t & PIXEL_QUEUED) == PIXEL_QUEUED; }
334 static inline bool is_pixel_paintability_checked(unsigned char *t) {
335 return !((*t & PIXEL_PAINTABLE) == 0) && ((*t & PIXEL_NOT_PAINTABLE) == 0);
336 }
337 static inline bool is_pixel_paintable(unsigned char *t) { return (*t & PIXEL_PAINTABLE) == PIXEL_PAINTABLE; }
338 static inline bool is_pixel_colored(unsigned char *t) { return (*t & PIXEL_COLORED) == PIXEL_COLORED; }
340 static inline void mark_pixel_checked(unsigned char *t) { *t |= PIXEL_CHECKED; }
341 static inline void mark_pixel_unchecked(unsigned char *t) { *t ^= PIXEL_CHECKED; }
342 static inline void mark_pixel_queued(unsigned char *t) { *t |= PIXEL_QUEUED; }
343 static inline void mark_pixel_paintable(unsigned char *t) { *t |= PIXEL_PAINTABLE; *t ^= PIXEL_NOT_PAINTABLE; }
344 static inline void mark_pixel_not_paintable(unsigned char *t) { *t |= PIXEL_NOT_PAINTABLE; *t ^= PIXEL_PAINTABLE; }
345 static inline void mark_pixel_colored(unsigned char *t) { *t |= PIXEL_COLORED; }
347 static inline void clear_pixel_paintability(unsigned char *t) { *t ^= PIXEL_PAINTABLE; *t ^= PIXEL_NOT_PAINTABLE; }
349 struct bitmap_coords_info {
350 bool is_left;
351 unsigned int x;
352 unsigned int y;
353 int y_limit;
354 unsigned int width;
355 unsigned int height;
356 unsigned int threshold;
357 unsigned int radius;
358 PaintBucketChannels method;
359 unsigned char *dtc;
360 unsigned char *merged_orig_pixel;
361 Geom::Rect bbox;
362 Geom::Rect screen;
363 unsigned int max_queue_size;
364 unsigned int current_step;
365 };
367 /**
368 * \brief Check if a pixel can be included in the fill.
369 * \param px The rendered pixel buffer to check.
370 * \param trace_t The pixel in the trace pixel buffer to check or mark.
371 * \param x The X coordinate.
372 * \param y The y coordinate.
373 * \param orig_color The original selected pixel to use as the fill target color.
374 * \param bci The bitmap_coords_info structure.
375 */
376 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) {
377 if (is_pixel_paintability_checked(trace_t)) {
378 return is_pixel_paintable(trace_t);
379 } else {
380 unsigned char *t = get_pixel(px, x, y, bci.width);
381 if (compare_pixels(t, orig_color, bci.merged_orig_pixel, bci.dtc, bci.threshold, bci.method)) {
382 mark_pixel_paintable(trace_t);
383 return true;
384 } else {
385 mark_pixel_not_paintable(trace_t);
386 return false;
387 }
388 }
389 }
391 /**
392 * \brief Perform the bitmap-to-vector tracing and place the traced path onto the document.
393 * \param px The trace pixel buffer to trace to SVG.
394 * \param desktop The desktop on which to place the final SVG path.
395 * \param transform The transform to apply to the final SVG path.
396 * \param union_with_selection If true, merge the final SVG path with the current selection.
397 */
398 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) {
399 SPDocument *document = sp_desktop_document(desktop);
401 unsigned char *trace_t;
403 GrayMap *gray_map = GrayMapCreate((max_x - min_x + 1), (max_y - min_y + 1));
404 unsigned int gray_map_y = 0;
405 for (unsigned int y = min_y; y <= max_y; y++) {
406 unsigned long *gray_map_t = gray_map->rows[gray_map_y];
408 trace_t = get_trace_pixel(trace_px, min_x, y, bci.width);
409 for (unsigned int x = min_x; x <= max_x; x++) {
410 *gray_map_t = is_pixel_colored(trace_t) ? GRAYMAP_BLACK : GRAYMAP_WHITE;
411 gray_map_t++;
412 trace_t++;
413 }
414 gray_map_y++;
415 }
417 Inkscape::Trace::Potrace::PotraceTracingEngine pte;
418 pte.keepGoing = 1;
419 std::vector<Inkscape::Trace::TracingEngineResult> results = pte.traceGrayMap(gray_map);
420 gray_map->destroy(gray_map);
422 //XML Tree being used here directly while it shouldn't be...."
423 Inkscape::XML::Document *xml_doc = desktop->doc()->getReprDoc();
425 long totalNodeCount = 0L;
427 Inkscape::Preferences *prefs = Inkscape::Preferences::get();
428 double offset = prefs->getDouble("/tools/paintbucket/offset", 0.0);
430 for (unsigned int i=0 ; i<results.size() ; i++) {
431 Inkscape::Trace::TracingEngineResult result = results[i];
432 totalNodeCount += result.getNodeCount();
434 Inkscape::XML::Node *pathRepr = xml_doc->createElement("svg:path");
435 /* Set style */
436 sp_desktop_apply_style_tool (desktop, pathRepr, "/tools/paintbucket", false);
438 Geom::PathVector pathv = sp_svg_read_pathv(result.getPathData().c_str());
439 Path *path = new Path;
440 path->LoadPathVector(pathv);
442 if (offset != 0) {
444 Shape *path_shape = new Shape();
446 path->ConvertWithBackData(0.03);
447 path->Fill(path_shape, 0);
448 delete path;
450 Shape *expanded_path_shape = new Shape();
452 expanded_path_shape->ConvertToShape(path_shape, fill_nonZero);
453 path_shape->MakeOffset(expanded_path_shape, offset * desktop->current_zoom(), join_round, 4);
454 expanded_path_shape->ConvertToShape(path_shape, fill_positive);
456 Path *expanded_path = new Path();
458 expanded_path->Reset();
459 expanded_path_shape->ConvertToForme(expanded_path);
460 expanded_path->ConvertEvenLines(1.0);
461 expanded_path->Simplify(1.0);
463 delete path_shape;
464 delete expanded_path_shape;
466 gchar *str = expanded_path->svg_dump_path();
467 if (str && *str) {
468 pathRepr->setAttribute("d", str);
469 g_free(str);
470 } else {
471 desktop->messageStack()->flash(Inkscape::WARNING_MESSAGE, _("<b>Too much inset</b>, the result is empty."));
472 Inkscape::GC::release(pathRepr);
473 g_free(str);
474 return;
475 }
477 delete expanded_path;
479 } else {
480 gchar *str = path->svg_dump_path();
481 delete path;
482 pathRepr->setAttribute("d", str);
483 g_free(str);
484 }
486 desktop->currentLayer()->addChild(pathRepr,NULL);
488 SPObject *reprobj = document->getObjectByRepr(pathRepr);
489 if (reprobj) {
490 SP_ITEM(reprobj)->doWriteTransform(pathRepr, transform, NULL);
492 // premultiply the item transform by the accumulated parent transform in the paste layer
493 Geom::Matrix local (SP_GROUP(desktop->currentLayer())->i2doc_affine());
494 if (!local.isIdentity()) {
495 gchar const *t_str = pathRepr->attribute("transform");
496 Geom::Matrix item_t (Geom::identity());
497 if (t_str)
498 sp_svg_transform_read(t_str, &item_t);
499 item_t *= local.inverse();
500 // (we're dealing with unattached repr, so we write to its attr instead of using sp_item_set_transform)
501 gchar *affinestr=sp_svg_transform_write(item_t);
502 pathRepr->setAttribute("transform", affinestr);
503 g_free(affinestr);
504 }
506 Inkscape::Selection *selection = sp_desktop_selection(desktop);
508 pathRepr->setPosition(-1);
510 if (union_with_selection) {
511 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)));
512 selection->add(reprobj);
513 sp_selected_path_union_skip_undo(desktop);
514 } else {
515 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)));
516 selection->set(reprobj);
517 }
519 }
521 Inkscape::GC::release(pathRepr);
523 }
524 }
526 /**
527 * \brief The possible return states of perform_bitmap_scanline_check()
528 */
529 enum ScanlineCheckResult {
530 SCANLINE_CHECK_OK,
531 SCANLINE_CHECK_ABORTED,
532 SCANLINE_CHECK_BOUNDARY
533 };
535 /**
536 * \brief Determine if the provided coordinates are within the pixel buffer limits.
537 * \param x The X coordinate.
538 * \param y The Y coordinate.
539 * \param bci The bitmap_coords_info structure.
540 */
541 inline static bool coords_in_range(unsigned int x, unsigned int y, bitmap_coords_info bci) {
542 return (x < bci.width) &&
543 (y < bci.height);
544 }
546 #define PAINT_DIRECTION_LEFT 1
547 #define PAINT_DIRECTION_RIGHT 2
548 #define PAINT_DIRECTION_UP 4
549 #define PAINT_DIRECTION_DOWN 8
550 #define PAINT_DIRECTION_ALL 15
552 /**
553 * \brief Paint a pixel or a square (if autogap is enabled) on the trace pixel buffer
554 * \param px The rendered pixel buffer to check.
555 * \param trace_px The trace pixel buffer.
556 * \param orig_color The original selected pixel to use as the fill target color.
557 * \param bci The bitmap_coords_info structure.
558 * \param original_point_trace_t The original pixel in the trace pixel buffer to check.
559 */
560 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) {
561 if (bci.radius == 0) {
562 mark_pixel_colored(original_point_trace_t);
563 return PAINT_DIRECTION_ALL;
564 } else {
565 unsigned char *trace_t;
567 bool can_paint_up = true;
568 bool can_paint_down = true;
569 bool can_paint_left = true;
570 bool can_paint_right = true;
572 for (unsigned int ty = bci.y - bci.radius; ty <= bci.y + bci.radius; ty++) {
573 for (unsigned int tx = bci.x - bci.radius; tx <= bci.x + bci.radius; tx++) {
574 if (coords_in_range(tx, ty, bci)) {
575 trace_t = get_trace_pixel(trace_px, tx, ty, bci.width);
576 if (!is_pixel_colored(trace_t)) {
577 if (check_if_pixel_is_paintable(px, trace_t, tx, ty, orig_color, bci)) {
578 mark_pixel_colored(trace_t);
579 } else {
580 if (tx < bci.x) { can_paint_left = false; }
581 if (tx > bci.x) { can_paint_right = false; }
582 if (ty < bci.y) { can_paint_up = false; }
583 if (ty > bci.y) { can_paint_down = false; }
584 }
585 }
586 }
587 }
588 }
590 unsigned int paint_directions = 0;
591 if (can_paint_left) { paint_directions += PAINT_DIRECTION_LEFT; }
592 if (can_paint_right) { paint_directions += PAINT_DIRECTION_RIGHT; }
593 if (can_paint_up) { paint_directions += PAINT_DIRECTION_UP; }
594 if (can_paint_down) { paint_directions += PAINT_DIRECTION_DOWN; }
596 return paint_directions;
597 }
598 }
600 /**
601 * \brief Push a point to be checked onto the bottom of the rendered pixel buffer check queue.
602 * \param fill_queue The fill queue to add the point to.
603 * \param max_queue_size The maximum size of the fill queue.
604 * \param trace_t The trace pixel buffer pixel.
605 * \param x The X coordinate.
606 * \param y The Y coordinate.
607 */
608 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) {
609 if (!is_pixel_queued(trace_t)) {
610 if ((fill_queue->size() < max_queue_size)) {
611 fill_queue->push_back(Geom::Point(x, y));
612 mark_pixel_queued(trace_t);
613 }
614 }
615 }
617 /**
618 * \brief Shift a point to be checked onto the top of the rendered pixel buffer check queue.
619 * \param fill_queue The fill queue to add the point to.
620 * \param max_queue_size The maximum size of the fill queue.
621 * \param trace_t The trace pixel buffer pixel.
622 * \param x The X coordinate.
623 * \param y The Y coordinate.
624 */
625 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) {
626 if (!is_pixel_queued(trace_t)) {
627 if ((fill_queue->size() < max_queue_size)) {
628 fill_queue->push_front(Geom::Point(x, y));
629 mark_pixel_queued(trace_t);
630 }
631 }
632 }
634 /**
635 * \brief Scan a row in the rendered pixel buffer and add points to the fill queue as necessary.
636 * \param fill_queue The fill queue to add the point to.
637 * \param px The rendered pixel buffer.
638 * \param trace_px The trace pixel buffer.
639 * \param orig_color The original selected pixel to use as the fill target color.
640 * \param bci The bitmap_coords_info structure.
641 */
642 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) {
643 bool aborted = false;
644 bool reached_screen_boundary = false;
645 bool ok;
647 bool keep_tracing;
648 bool initial_paint = true;
650 unsigned char *current_trace_t = get_trace_pixel(trace_px, bci.x, bci.y, bci.width);
651 unsigned int paint_directions;
653 bool currently_painting_top = false;
654 bool currently_painting_bottom = false;
656 unsigned int top_ty = bci.y - 1;
657 unsigned int bottom_ty = bci.y + 1;
659 bool can_paint_top = (top_ty > 0);
660 bool can_paint_bottom = (bottom_ty < bci.height);
662 Geom::Point t = fill_queue->front();
664 do {
665 ok = false;
666 if (bci.is_left) {
667 keep_tracing = (bci.x != 0);
668 } else {
669 keep_tracing = (bci.x < bci.width);
670 }
672 *min_x = MIN(*min_x, bci.x);
673 *max_x = MAX(*max_x, bci.x);
675 if (keep_tracing) {
676 if (check_if_pixel_is_paintable(px, current_trace_t, bci.x, bci.y, orig_color, bci)) {
677 paint_directions = paint_pixel(px, trace_px, orig_color, bci, current_trace_t);
678 if (bci.radius == 0) {
679 mark_pixel_checked(current_trace_t);
680 if ((t[Geom::X] == bci.x) && (t[Geom::Y] == bci.y)) {
681 fill_queue->pop_front(); t = fill_queue->front();
682 }
683 }
685 if (can_paint_top) {
686 if (paint_directions & PAINT_DIRECTION_UP) {
687 unsigned char *trace_t = current_trace_t - bci.width;
688 if (!is_pixel_queued(trace_t)) {
689 bool ok_to_paint = check_if_pixel_is_paintable(px, trace_t, bci.x, top_ty, orig_color, bci);
691 if (initial_paint) { currently_painting_top = !ok_to_paint; }
693 if (ok_to_paint && (!currently_painting_top)) {
694 currently_painting_top = true;
695 push_point_onto_queue(fill_queue, bci.max_queue_size, trace_t, bci.x, top_ty);
696 }
697 if ((!ok_to_paint) && currently_painting_top) {
698 currently_painting_top = false;
699 }
700 }
701 }
702 }
704 if (can_paint_bottom) {
705 if (paint_directions & PAINT_DIRECTION_DOWN) {
706 unsigned char *trace_t = current_trace_t + bci.width;
707 if (!is_pixel_queued(trace_t)) {
708 bool ok_to_paint = check_if_pixel_is_paintable(px, trace_t, bci.x, bottom_ty, orig_color, bci);
710 if (initial_paint) { currently_painting_bottom = !ok_to_paint; }
712 if (ok_to_paint && (!currently_painting_bottom)) {
713 currently_painting_bottom = true;
714 push_point_onto_queue(fill_queue, bci.max_queue_size, trace_t, bci.x, bottom_ty);
715 }
716 if ((!ok_to_paint) && currently_painting_bottom) {
717 currently_painting_bottom = false;
718 }
719 }
720 }
721 }
723 if (bci.is_left) {
724 if (paint_directions & PAINT_DIRECTION_LEFT) {
725 bci.x--; current_trace_t--;
726 ok = true;
727 }
728 } else {
729 if (paint_directions & PAINT_DIRECTION_RIGHT) {
730 bci.x++; current_trace_t++;
731 ok = true;
732 }
733 }
735 initial_paint = false;
736 }
737 } else {
738 if (bci.bbox.min()[Geom::X] > bci.screen.min()[Geom::X]) {
739 aborted = true; break;
740 } else {
741 reached_screen_boundary = true;
742 }
743 }
744 } while (ok);
746 if (aborted) { return SCANLINE_CHECK_ABORTED; }
747 if (reached_screen_boundary) { return SCANLINE_CHECK_BOUNDARY; }
748 return SCANLINE_CHECK_OK;
749 }
751 /**
752 * \brief Sort the rendered pixel buffer check queue vertically.
753 */
754 static bool sort_fill_queue_vertical(Geom::Point a, Geom::Point b) {
755 return a[Geom::Y] > b[Geom::Y];
756 }
758 /**
759 * \brief Sort the rendered pixel buffer check queue horizontally.
760 */
761 static bool sort_fill_queue_horizontal(Geom::Point a, Geom::Point b) {
762 return a[Geom::X] > b[Geom::X];
763 }
765 /**
766 * \brief Perform a flood fill operation.
767 * \param event_context The event context for this tool.
768 * \param event The details of this event.
769 * \param union_with_selection If true, union the new fill with the current selection.
770 * \param is_point_fill If false, use the Rubberband "touch selection" to get the initial points for the fill.
771 * \param is_touch_fill If true, use only the initial contact point in the Rubberband "touch selection" as the fill target color.
772 */
773 static void sp_flood_do_flood_fill(SPEventContext *event_context, GdkEvent *event, bool union_with_selection, bool is_point_fill, bool is_touch_fill) {
774 SPDesktop *desktop = event_context->desktop;
775 SPDocument *document = sp_desktop_document(desktop);
777 /* Create new arena */
778 NRArena *arena = NRArena::create();
779 unsigned dkey = SPItem::display_key_new(1);
781 document->ensureUpToDate();
783 SPItem *document_root = SP_ITEM(document->getRoot());
784 Geom::OptRect bbox = document_root->getBounds(Geom::identity());
786 if (!bbox) {
787 desktop->messageStack()->flash(Inkscape::WARNING_MESSAGE, _("<b>Area is not bounded</b>, cannot fill."));
788 return;
789 }
791 double zoom_scale = desktop->current_zoom();
793 // Render 160% of the physical display to the render pixel buffer, so that available
794 // fill areas off the screen can be included in the fill.
795 double padding = 1.6;
797 Geom::Rect screen = desktop->get_display_area();
799 unsigned int width = (int)ceil(screen.width() * zoom_scale * padding);
800 unsigned int height = (int)ceil(screen.height() * zoom_scale * padding);
802 Geom::Point origin(screen.min()[Geom::X],
803 document->getHeight() - screen.height() - screen.min()[Geom::Y]);
805 origin[Geom::X] = origin[Geom::X] + (screen.width() * ((1 - padding) / 2));
806 origin[Geom::Y] = origin[Geom::Y] + (screen.height() * ((1 - padding) / 2));
808 Geom::Scale scale(zoom_scale, zoom_scale);
809 Geom::Matrix affine = scale * Geom::Translate(-origin * scale);
811 /* Create ArenaItems and set transform */
812 NRArenaItem *root = SP_ITEM(document->getRoot())->invoke_show( arena, dkey, SP_ITEM_SHOW_DISPLAY);
813 nr_arena_item_set_transform(NR_ARENA_ITEM(root), affine);
815 NRGC gc(NULL);
816 gc.transform.setIdentity();
818 NRRectL final_bbox;
819 final_bbox.x0 = 0;
820 final_bbox.y0 = 0; //row;
821 final_bbox.x1 = width;
822 final_bbox.y1 = height; //row + num_rows;
824 nr_arena_item_invoke_update(root, &final_bbox, &gc, NR_ARENA_ITEM_STATE_ALL, NR_ARENA_ITEM_STATE_NONE);
826 guchar *px = g_new(guchar, 4 * width * height);
828 NRPixBlock B;
829 nr_pixblock_setup_extern( &B, NR_PIXBLOCK_MODE_R8G8B8A8N,
830 final_bbox.x0, final_bbox.y0, final_bbox.x1, final_bbox.y1,
831 px, 4 * width, FALSE, FALSE );
833 SPNamedView *nv = sp_desktop_namedview(desktop);
834 unsigned long bgcolor = nv->pagecolor;
836 unsigned char dtc[4];
837 dtc[0] = NR_RGBA32_R(bgcolor);
838 dtc[1] = NR_RGBA32_G(bgcolor);
839 dtc[2] = NR_RGBA32_B(bgcolor);
840 dtc[3] = NR_RGBA32_A(bgcolor);
842 for (unsigned int fy = 0; fy < height; fy++) {
843 guchar *p = NR_PIXBLOCK_PX(&B) + fy * B.rs;
844 for (unsigned int fx = 0; fx < width; fx++) {
845 for (int i = 0; i < 4; i++) {
846 *p++ = dtc[i];
847 }
848 }
849 }
851 nr_arena_item_invoke_render(NULL, root, &final_bbox, &B, NR_ARENA_ITEM_RENDER_NO_CACHE );
852 nr_pixblock_release(&B);
854 // Hide items
855 SP_ITEM(document->getRoot())->invoke_hide(dkey);
857 nr_object_unref((NRObject *) arena);
859 guchar *trace_px = g_new(guchar, width * height);
860 memset(trace_px, 0x00, width * height);
862 std::deque<Geom::Point> fill_queue;
863 std::queue<Geom::Point> color_queue;
865 std::vector<Geom::Point> fill_points;
867 bool aborted = false;
868 int y_limit = height - 1;
870 Inkscape::Preferences *prefs = Inkscape::Preferences::get();
871 PaintBucketChannels method = (PaintBucketChannels) prefs->getInt("/tools/paintbucket/channels", 0);
872 int threshold = prefs->getIntLimited("/tools/paintbucket/threshold", 1, 0, 100);
874 switch(method) {
875 case FLOOD_CHANNELS_ALPHA:
876 case FLOOD_CHANNELS_RGB:
877 case FLOOD_CHANNELS_R:
878 case FLOOD_CHANNELS_G:
879 case FLOOD_CHANNELS_B:
880 threshold = (255 * threshold) / 100;
881 break;
882 case FLOOD_CHANNELS_H:
883 case FLOOD_CHANNELS_S:
884 case FLOOD_CHANNELS_L:
885 break;
886 }
888 bitmap_coords_info bci;
890 bci.y_limit = y_limit;
891 bci.width = width;
892 bci.height = height;
893 bci.threshold = threshold;
894 bci.method = method;
895 bci.bbox = *bbox;
896 bci.screen = screen;
897 bci.dtc = dtc;
898 bci.radius = prefs->getIntLimited("/tools/paintbucket/autogap", 0, 0, 3);
899 bci.max_queue_size = (width * height) / 4;
900 bci.current_step = 0;
902 if (is_point_fill) {
903 fill_points.push_back(Geom::Point(event->button.x, event->button.y));
904 } else {
905 Inkscape::Rubberband *r = Inkscape::Rubberband::get(desktop);
906 fill_points = r->getPoints();
907 }
909 for (unsigned int i = 0; i < fill_points.size(); i++) {
910 Geom::Point pw = Geom::Point(fill_points[i][Geom::X] / zoom_scale, document->getHeight() + (fill_points[i][Geom::Y] / zoom_scale)) * affine;
912 pw[Geom::X] = (int)MIN(width - 1, MAX(0, pw[Geom::X]));
913 pw[Geom::Y] = (int)MIN(height - 1, MAX(0, pw[Geom::Y]));
915 if (is_touch_fill) {
916 if (i == 0) {
917 color_queue.push(pw);
918 } else {
919 unsigned char *trace_t = get_trace_pixel(trace_px, (int)pw[Geom::X], (int)pw[Geom::Y], width);
920 push_point_onto_queue(&fill_queue, bci.max_queue_size, trace_t, (int)pw[Geom::X], (int)pw[Geom::Y]);
921 }
922 } else {
923 color_queue.push(pw);
924 }
925 }
927 bool reached_screen_boundary = false;
929 bool first_run = true;
931 unsigned long sort_size_threshold = 5;
933 unsigned int min_y = height;
934 unsigned int max_y = 0;
935 unsigned int min_x = width;
936 unsigned int max_x = 0;
938 while (!color_queue.empty() && !aborted) {
939 Geom::Point color_point = color_queue.front();
940 color_queue.pop();
942 int cx = (int)color_point[Geom::X];
943 int cy = (int)color_point[Geom::Y];
945 unsigned char *orig_px = get_pixel(px, cx, cy, width);
946 unsigned char orig_color[4];
947 for (int i = 0; i < 4; i++) { orig_color[i] = orig_px[i]; }
949 unsigned char merged_orig[3];
951 merge_pixel_with_background(orig_color, dtc, merged_orig);
953 bci.merged_orig_pixel = merged_orig;
955 unsigned char *trace_t = get_trace_pixel(trace_px, cx, cy, width);
956 if (!is_pixel_checked(trace_t) && !is_pixel_colored(trace_t)) {
957 if (check_if_pixel_is_paintable(px, trace_px, cx, cy, orig_color, bci)) {
958 shift_point_onto_queue(&fill_queue, bci.max_queue_size, trace_t, cx, cy);
960 if (!first_run) {
961 for (unsigned int y = 0; y < height; y++) {
962 trace_t = get_trace_pixel(trace_px, 0, y, width);
963 for (unsigned int x = 0; x < width; x++) {
964 clear_pixel_paintability(trace_t);
965 trace_t++;
966 }
967 }
968 }
969 first_run = false;
970 }
971 }
973 unsigned long old_fill_queue_size = fill_queue.size();
975 while (!fill_queue.empty() && !aborted) {
976 Geom::Point cp = fill_queue.front();
978 if (bci.radius == 0) {
979 unsigned long new_fill_queue_size = fill_queue.size();
981 /*
982 * To reduce the number of points in the fill queue, periodically
983 * resort all of the points in the queue so that scanline checks
984 * can complete more quickly. A point cannot be checked twice
985 * in a normal scanline checks, so forcing scanline checks to start
986 * from one corner of the rendered area as often as possible
987 * will reduce the number of points that need to be checked and queued.
988 */
989 if (new_fill_queue_size > sort_size_threshold) {
990 if (new_fill_queue_size > old_fill_queue_size) {
991 std::sort(fill_queue.begin(), fill_queue.end(), sort_fill_queue_vertical);
993 std::deque<Geom::Point>::iterator start_sort = fill_queue.begin();
994 std::deque<Geom::Point>::iterator end_sort = fill_queue.begin();
995 unsigned int sort_y = (unsigned int)cp[Geom::Y];
996 unsigned int current_y = sort_y;
998 for (std::deque<Geom::Point>::iterator i = fill_queue.begin(); i != fill_queue.end(); i++) {
999 Geom::Point current = *i;
1000 current_y = (unsigned int)current[Geom::Y];
1001 if (current_y != sort_y) {
1002 if (start_sort != end_sort) {
1003 std::sort(start_sort, end_sort, sort_fill_queue_horizontal);
1004 }
1005 sort_y = current_y;
1006 start_sort = i;
1007 }
1008 end_sort = i;
1009 }
1010 if (start_sort != end_sort) {
1011 std::sort(start_sort, end_sort, sort_fill_queue_horizontal);
1012 }
1014 cp = fill_queue.front();
1015 }
1016 }
1018 old_fill_queue_size = new_fill_queue_size;
1019 }
1021 fill_queue.pop_front();
1023 int x = (int)cp[Geom::X];
1024 int y = (int)cp[Geom::Y];
1026 min_y = MIN((unsigned int)y, min_y);
1027 max_y = MAX((unsigned int)y, max_y);
1029 unsigned char *trace_t = get_trace_pixel(trace_px, x, y, width);
1030 if (!is_pixel_checked(trace_t)) {
1031 mark_pixel_checked(trace_t);
1033 if (y == 0) {
1034 if (bbox->min()[Geom::Y] > screen.min()[Geom::Y]) {
1035 aborted = true; break;
1036 } else {
1037 reached_screen_boundary = true;
1038 }
1039 }
1041 if (y == y_limit) {
1042 if (bbox->max()[Geom::Y] < screen.max()[Geom::Y]) {
1043 aborted = true; break;
1044 } else {
1045 reached_screen_boundary = true;
1046 }
1047 }
1049 bci.is_left = true;
1050 bci.x = x;
1051 bci.y = y;
1053 ScanlineCheckResult result = perform_bitmap_scanline_check(&fill_queue, px, trace_px, orig_color, bci, &min_x, &max_x);
1055 switch (result) {
1056 case SCANLINE_CHECK_ABORTED:
1057 aborted = true;
1058 break;
1059 case SCANLINE_CHECK_BOUNDARY:
1060 reached_screen_boundary = true;
1061 break;
1062 default:
1063 break;
1064 }
1066 if (bci.x < width) {
1067 trace_t++;
1068 if (!is_pixel_checked(trace_t) && !is_pixel_queued(trace_t)) {
1069 mark_pixel_checked(trace_t);
1070 bci.is_left = false;
1071 bci.x = x + 1;
1073 result = perform_bitmap_scanline_check(&fill_queue, px, trace_px, orig_color, bci, &min_x, &max_x);
1075 switch (result) {
1076 case SCANLINE_CHECK_ABORTED:
1077 aborted = true;
1078 break;
1079 case SCANLINE_CHECK_BOUNDARY:
1080 reached_screen_boundary = true;
1081 break;
1082 default:
1083 break;
1084 }
1085 }
1086 }
1087 }
1089 bci.current_step++;
1091 if (bci.current_step > bci.max_queue_size) {
1092 aborted = true;
1093 }
1094 }
1095 }
1097 g_free(px);
1099 if (aborted) {
1100 g_free(trace_px);
1101 desktop->messageStack()->flash(Inkscape::WARNING_MESSAGE, _("<b>Area is not bounded</b>, cannot fill."));
1102 return;
1103 }
1105 if (reached_screen_boundary) {
1106 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."));
1107 }
1109 unsigned int trace_padding = bci.radius + 1;
1110 if (min_y > trace_padding) { min_y -= trace_padding; }
1111 if (max_y < (y_limit - trace_padding)) { max_y += trace_padding; }
1112 if (min_x > trace_padding) { min_x -= trace_padding; }
1113 if (max_x < (width - 1 - trace_padding)) { max_x += trace_padding; }
1115 Geom::Point min_start = Geom::Point(min_x, min_y);
1117 affine = scale * Geom::Translate(-origin * scale - min_start);
1118 Geom::Matrix inverted_affine = Geom::Matrix(affine).inverse();
1120 do_trace(bci, trace_px, desktop, inverted_affine, min_x, max_x, min_y, max_y, union_with_selection);
1122 g_free(trace_px);
1124 DocumentUndo::done(document, SP_VERB_CONTEXT_PAINTBUCKET, _("Fill bounded area"));
1125 }
1127 static gint sp_flood_context_item_handler(SPEventContext *event_context, SPItem *item, GdkEvent *event)
1128 {
1129 gint ret = FALSE;
1131 SPDesktop *desktop = event_context->desktop;
1133 switch (event->type) {
1134 case GDK_BUTTON_PRESS:
1135 if ((event->button.state & GDK_CONTROL_MASK) && event->button.button == 1 && !event_context->space_panning) {
1136 Geom::Point const button_w(event->button.x,
1137 event->button.y);
1139 SPItem *item = sp_event_context_find_item (desktop, button_w, TRUE, TRUE);
1141 // Set style
1142 desktop->applyCurrentOrToolStyle(item, "/tools/paintbucket", false);
1143 DocumentUndo::done(sp_desktop_document(desktop), SP_VERB_CONTEXT_PAINTBUCKET, _("Set style on object"));
1144 ret = TRUE;
1145 }
1146 break;
1147 default:
1148 break;
1149 }
1151 if (((SPEventContextClass *) parent_class)->item_handler) {
1152 ret = ((SPEventContextClass *) parent_class)->item_handler(event_context, item, event);
1153 }
1155 return ret;
1156 }
1158 static gint sp_flood_context_root_handler(SPEventContext *event_context, GdkEvent *event)
1159 {
1160 static bool dragging;
1162 gint ret = FALSE;
1163 SPDesktop *desktop = event_context->desktop;
1165 switch (event->type) {
1166 case GDK_BUTTON_PRESS:
1167 if (event->button.button == 1 && !event_context->space_panning) {
1168 if (!(event->button.state & GDK_CONTROL_MASK)) {
1169 Geom::Point const button_w(event->button.x,
1170 event->button.y);
1172 if (Inkscape::have_viable_layer(desktop, event_context->defaultMessageContext())) {
1173 // save drag origin
1174 event_context->xp = (gint) button_w[Geom::X];
1175 event_context->yp = (gint) button_w[Geom::Y];
1176 event_context->within_tolerance = true;
1178 dragging = true;
1180 Geom::Point const p(desktop->w2d(button_w));
1181 Inkscape::Rubberband::get(desktop)->setMode(RUBBERBAND_MODE_TOUCHPATH);
1182 Inkscape::Rubberband::get(desktop)->start(desktop, p);
1183 }
1184 }
1185 }
1186 case GDK_MOTION_NOTIFY:
1187 if ( dragging
1188 && ( event->motion.state & GDK_BUTTON1_MASK ) && !event_context->space_panning)
1189 {
1190 if ( event_context->within_tolerance
1191 && ( abs( (gint) event->motion.x - event_context->xp ) < event_context->tolerance )
1192 && ( abs( (gint) event->motion.y - event_context->yp ) < event_context->tolerance ) ) {
1193 break; // do not drag if we're within tolerance from origin
1194 }
1196 event_context->within_tolerance = false;
1198 Geom::Point const motion_pt(event->motion.x, event->motion.y);
1199 Geom::Point const p(desktop->w2d(motion_pt));
1200 if (Inkscape::Rubberband::get(desktop)->is_started()) {
1201 Inkscape::Rubberband::get(desktop)->move(p);
1202 event_context->defaultMessageContext()->set(Inkscape::NORMAL_MESSAGE, _("<b>Draw over</b> areas to add to fill, hold <b>Alt</b> for touch fill"));
1203 gobble_motion_events(GDK_BUTTON1_MASK);
1204 }
1205 }
1206 break;
1208 case GDK_BUTTON_RELEASE:
1209 if (event->button.button == 1 && !event_context->space_panning) {
1210 Inkscape::Rubberband *r = Inkscape::Rubberband::get(desktop);
1211 if (r->is_started()) {
1212 // set "busy" cursor
1213 desktop->setWaitingCursor();
1215 if (SP_IS_EVENT_CONTEXT(event_context)) {
1216 // Since setWaitingCursor runs main loop iterations, we may have already left this tool!
1217 // So check if the tool is valid before doing anything
1218 dragging = false;
1220 bool is_point_fill = event_context->within_tolerance;
1221 bool is_touch_fill = event->button.state & GDK_MOD1_MASK;
1223 sp_flood_do_flood_fill(event_context, event, event->button.state & GDK_SHIFT_MASK, is_point_fill, is_touch_fill);
1225 desktop->clearWaitingCursor();
1226 // restore cursor when done; note that it may already be different if e.g. user
1227 // switched to another tool during interruptible tracing or drawing, in which case do nothing
1229 ret = TRUE;
1230 }
1232 r->stop();
1234 if (SP_IS_EVENT_CONTEXT(event_context)) {
1235 event_context->defaultMessageContext()->clear();
1236 }
1237 }
1238 }
1239 break;
1240 case GDK_KEY_PRESS:
1241 switch (get_group0_keyval (&event->key)) {
1242 case GDK_Up:
1243 case GDK_Down:
1244 case GDK_KP_Up:
1245 case GDK_KP_Down:
1246 // prevent the zoom field from activation
1247 if (!MOD__CTRL_ONLY)
1248 ret = TRUE;
1249 break;
1250 default:
1251 break;
1252 }
1253 break;
1254 default:
1255 break;
1256 }
1258 if (!ret) {
1259 if (((SPEventContextClass *) parent_class)->root_handler) {
1260 ret = ((SPEventContextClass *) parent_class)->root_handler(event_context, event);
1261 }
1262 }
1264 return ret;
1265 }
1268 static void sp_flood_finish(SPFloodContext *rc)
1269 {
1270 rc->_message_context->clear();
1272 if ( rc->item != NULL ) {
1273 SPDesktop * desktop;
1275 desktop = SP_EVENT_CONTEXT_DESKTOP(rc);
1277 SP_OBJECT(rc->item)->updateRepr();
1279 sp_canvas_end_forced_full_redraws(desktop->canvas);
1281 sp_desktop_selection(desktop)->set(rc->item);
1282 DocumentUndo::done(sp_desktop_document(desktop), SP_VERB_CONTEXT_PAINTBUCKET,
1283 _("Fill bounded area"));
1285 rc->item = NULL;
1286 }
1287 }
1289 void flood_channels_set_channels( gint channels )
1290 {
1291 Inkscape::Preferences *prefs = Inkscape::Preferences::get();
1292 prefs->setInt("/tools/paintbucket/channels", channels);
1293 }
1295 /*
1296 Local Variables:
1297 mode:c++
1298 c-file-style:"stroustrup"
1299 c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
1300 indent-tabs-mode:nil
1301 fill-column:99
1302 End:
1303 */
1304 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:fileencoding=utf-8:textwidth=99 :