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"
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 static void sp_flood_context_class_init(SPFloodContextClass *klass);
78 static void sp_flood_context_init(SPFloodContext *flood_context);
79 static void sp_flood_context_dispose(GObject *object);
81 static void sp_flood_context_setup(SPEventContext *ec);
83 static gint sp_flood_context_root_handler(SPEventContext *event_context, GdkEvent *event);
84 static gint sp_flood_context_item_handler(SPEventContext *event_context, SPItem *item, GdkEvent *event);
86 static void sp_flood_finish(SPFloodContext *rc);
88 static SPEventContextClass *parent_class;
91 GtkType sp_flood_context_get_type()
92 {
93 static GType type = 0;
94 if (!type) {
95 GTypeInfo info = {
96 sizeof(SPFloodContextClass),
97 NULL, NULL,
98 (GClassInitFunc) sp_flood_context_class_init,
99 NULL, NULL,
100 sizeof(SPFloodContext),
101 4,
102 (GInstanceInitFunc) sp_flood_context_init,
103 NULL, /* value_table */
104 };
105 type = g_type_register_static(SP_TYPE_EVENT_CONTEXT, "SPFloodContext", &info, (GTypeFlags) 0);
106 }
107 return type;
108 }
110 static void sp_flood_context_class_init(SPFloodContextClass *klass)
111 {
112 GObjectClass *object_class = (GObjectClass *) klass;
113 SPEventContextClass *event_context_class = (SPEventContextClass *) klass;
115 parent_class = (SPEventContextClass *) g_type_class_peek_parent(klass);
117 object_class->dispose = sp_flood_context_dispose;
119 event_context_class->setup = sp_flood_context_setup;
120 event_context_class->root_handler = sp_flood_context_root_handler;
121 event_context_class->item_handler = sp_flood_context_item_handler;
122 }
124 static void sp_flood_context_init(SPFloodContext *flood_context)
125 {
126 SPEventContext *event_context = SP_EVENT_CONTEXT(flood_context);
128 event_context->cursor_shape = cursor_paintbucket_xpm;
129 event_context->hot_x = 11;
130 event_context->hot_y = 30;
131 event_context->xp = 0;
132 event_context->yp = 0;
133 event_context->tolerance = 4;
134 event_context->within_tolerance = false;
135 event_context->item_to_select = NULL;
137 flood_context->item = NULL;
139 new (&flood_context->sel_changed_connection) sigc::connection();
140 }
142 static void sp_flood_context_dispose(GObject *object)
143 {
144 SPFloodContext *rc = SP_FLOOD_CONTEXT(object);
145 SPEventContext *ec = SP_EVENT_CONTEXT(object);
147 rc->sel_changed_connection.disconnect();
148 rc->sel_changed_connection.~connection();
150 delete ec->shape_editor;
151 ec->shape_editor = NULL;
153 /* fixme: This is necessary because we do not grab */
154 if (rc->item) {
155 sp_flood_finish(rc);
156 }
158 if (rc->_message_context) {
159 delete rc->_message_context;
160 }
162 G_OBJECT_CLASS(parent_class)->dispose(object);
163 }
165 /**
166 \brief Callback that processes the "changed" signal on the selection;
167 destroys old and creates new knotholder
168 */
169 void sp_flood_context_selection_changed(Inkscape::Selection *selection, gpointer data)
170 {
171 SPFloodContext *rc = SP_FLOOD_CONTEXT(data);
172 SPEventContext *ec = SP_EVENT_CONTEXT(rc);
174 ec->shape_editor->unset_item(SH_KNOTHOLDER);
175 SPItem *item = selection->singleItem();
176 ec->shape_editor->set_item(item, SH_KNOTHOLDER);
177 }
179 static void sp_flood_context_setup(SPEventContext *ec)
180 {
181 SPFloodContext *rc = SP_FLOOD_CONTEXT(ec);
183 if (((SPEventContextClass *) parent_class)->setup) {
184 ((SPEventContextClass *) parent_class)->setup(ec);
185 }
187 ec->shape_editor = new ShapeEditor(ec->desktop);
189 SPItem *item = sp_desktop_selection(ec->desktop)->singleItem();
190 if (item) {
191 ec->shape_editor->set_item(item, SH_KNOTHOLDER);
192 }
194 rc->sel_changed_connection.disconnect();
195 rc->sel_changed_connection = sp_desktop_selection(ec->desktop)->connectChanged(
196 sigc::bind(sigc::ptr_fun(&sp_flood_context_selection_changed), (gpointer)rc)
197 );
199 rc->_message_context = new Inkscape::MessageContext((ec->desktop)->messageStack());
201 Inkscape::Preferences *prefs = Inkscape::Preferences::get();
202 if (prefs->getBool("/tools/paintbucket/selcue")) {
203 rc->enableSelectionCue();
204 }
205 }
207 /**
208 * \brief Merge a pixel with the background color.
209 * \param orig The pixel to merge with the background.
210 * \param bg The background color.
211 * \param base The pixel to merge the original and background into.
212 */
213 inline static void
214 merge_pixel_with_background (unsigned char *orig, unsigned char *bg,
215 unsigned char *base)
216 {
217 int precalc_bg_alpha = (255 * (255 - bg[3])) / 255;
219 for (int i = 0; i < 3; i++) {
220 base[i] = precalc_bg_alpha + (bg[i] * bg[3]) / 255;
221 base[i] = (base[i] * (255 - orig[3])) / 255 + (orig[i] * orig[3]) / 255;
222 }
223 }
225 /**
226 * \brief Get the pointer to a pixel in a pixel buffer.
227 * \param px The pixel buffer.
228 * \param x The X coordinate.
229 * \param y The Y coordinate.
230 * \param width The width of the pixel buffer.
231 */
232 inline unsigned char * get_pixel(guchar *px, int x, int y, int width) {
233 return px + (x + y * width) * 4;
234 }
236 inline unsigned char * get_trace_pixel(guchar *trace_px, int x, int y, int width) {
237 return trace_px + (x + y * width);
238 }
240 /**
241 * \brief Generate the list of trace channel selection entries.
242 */
243 GList * flood_channels_dropdown_items_list() {
244 GList *glist = NULL;
246 glist = g_list_append (glist, _("Visible Colors"));
247 glist = g_list_append (glist, _("Red"));
248 glist = g_list_append (glist, _("Green"));
249 glist = g_list_append (glist, _("Blue"));
250 glist = g_list_append (glist, _("Hue"));
251 glist = g_list_append (glist, _("Saturation"));
252 glist = g_list_append (glist, _("Lightness"));
253 glist = g_list_append (glist, _("Alpha"));
255 return glist;
256 }
258 /**
259 * \brief Generate the list of autogap selection entries.
260 */
261 GList * flood_autogap_dropdown_items_list() {
262 GList *glist = NULL;
264 glist = g_list_append (glist, _("None"));
265 glist = g_list_append (glist, _("Small"));
266 glist = g_list_append (glist, _("Medium"));
267 glist = g_list_append (glist, _("Large"));
269 return glist;
270 }
272 /**
273 * \brief Compare a pixel in a pixel buffer with another pixel to determine if a point should be included in the fill operation.
274 * \param check The pixel in the pixel buffer to check.
275 * \param orig The original selected pixel to use as the fill target color.
276 * \param merged_orig_pixel The original pixel merged with the background.
277 * \param dtc The desktop background color.
278 * \param threshold The fill threshold.
279 * \param method The fill method to use as defined in PaintBucketChannels.
280 */
281 static bool compare_pixels(unsigned char *check, unsigned char *orig, unsigned char *merged_orig_pixel, unsigned char *dtc, int threshold, PaintBucketChannels method) {
282 int diff = 0;
283 float hsl_check[3], hsl_orig[3];
285 if ((method == FLOOD_CHANNELS_H) ||
286 (method == FLOOD_CHANNELS_S) ||
287 (method == FLOOD_CHANNELS_L)) {
288 sp_color_rgb_to_hsl_floatv(hsl_check, check[0] / 255.0, check[1] / 255.0, check[2] / 255.0);
289 sp_color_rgb_to_hsl_floatv(hsl_orig, orig[0] / 255.0, orig[1] / 255.0, orig[2] / 255.0);
290 }
292 switch (method) {
293 case FLOOD_CHANNELS_ALPHA:
294 return ((int)abs(check[3] - orig[3]) <= threshold);
295 case FLOOD_CHANNELS_R:
296 return ((int)abs(check[0] - orig[0]) <= threshold);
297 case FLOOD_CHANNELS_G:
298 return ((int)abs(check[1] - orig[1]) <= threshold);
299 case FLOOD_CHANNELS_B:
300 return ((int)abs(check[2] - orig[2]) <= threshold);
301 case FLOOD_CHANNELS_RGB:
302 unsigned char merged_check[3];
304 merge_pixel_with_background(check, dtc, merged_check);
306 for (int i = 0; i < 3; i++) {
307 diff += (int)abs(merged_check[i] - merged_orig_pixel[i]);
308 }
309 return ((diff / 3) <= ((threshold * 3) / 4));
311 case FLOOD_CHANNELS_H:
312 return ((int)(fabs(hsl_check[0] - hsl_orig[0]) * 100.0) <= threshold);
313 case FLOOD_CHANNELS_S:
314 return ((int)(fabs(hsl_check[1] - hsl_orig[1]) * 100.0) <= threshold);
315 case FLOOD_CHANNELS_L:
316 return ((int)(fabs(hsl_check[2] - hsl_orig[2]) * 100.0) <= threshold);
317 }
319 return false;
320 }
322 enum {
323 PIXEL_CHECKED = 1,
324 PIXEL_QUEUED = 2,
325 PIXEL_PAINTABLE = 4,
326 PIXEL_NOT_PAINTABLE = 8,
327 PIXEL_COLORED = 16
328 };
330 static inline bool is_pixel_checked(unsigned char *t) { return (*t & PIXEL_CHECKED) == PIXEL_CHECKED; }
331 static inline bool is_pixel_queued(unsigned char *t) { return (*t & PIXEL_QUEUED) == PIXEL_QUEUED; }
332 static inline bool is_pixel_paintability_checked(unsigned char *t) {
333 return !((*t & PIXEL_PAINTABLE) == 0) && ((*t & PIXEL_NOT_PAINTABLE) == 0);
334 }
335 static inline bool is_pixel_paintable(unsigned char *t) { return (*t & PIXEL_PAINTABLE) == PIXEL_PAINTABLE; }
336 static inline bool is_pixel_colored(unsigned char *t) { return (*t & PIXEL_COLORED) == PIXEL_COLORED; }
338 static inline void mark_pixel_checked(unsigned char *t) { *t |= PIXEL_CHECKED; }
339 static inline void mark_pixel_unchecked(unsigned char *t) { *t ^= PIXEL_CHECKED; }
340 static inline void mark_pixel_queued(unsigned char *t) { *t |= PIXEL_QUEUED; }
341 static inline void mark_pixel_paintable(unsigned char *t) { *t |= PIXEL_PAINTABLE; *t ^= PIXEL_NOT_PAINTABLE; }
342 static inline void mark_pixel_not_paintable(unsigned char *t) { *t |= PIXEL_NOT_PAINTABLE; *t ^= PIXEL_PAINTABLE; }
343 static inline void mark_pixel_colored(unsigned char *t) { *t |= PIXEL_COLORED; }
345 static inline void clear_pixel_paintability(unsigned char *t) { *t ^= PIXEL_PAINTABLE; *t ^= PIXEL_NOT_PAINTABLE; }
347 struct bitmap_coords_info {
348 bool is_left;
349 unsigned int x;
350 unsigned int y;
351 int y_limit;
352 unsigned int width;
353 unsigned int height;
354 unsigned int threshold;
355 unsigned int radius;
356 PaintBucketChannels method;
357 unsigned char *dtc;
358 unsigned char *merged_orig_pixel;
359 Geom::Rect bbox;
360 Geom::Rect screen;
361 unsigned int max_queue_size;
362 unsigned int current_step;
363 };
365 /**
366 * \brief Check if a pixel can be included in the fill.
367 * \param px The rendered pixel buffer to check.
368 * \param trace_t The pixel in the trace pixel buffer to check or mark.
369 * \param x The X coordinate.
370 * \param y The y coordinate.
371 * \param orig_color The original selected pixel to use as the fill target color.
372 * \param bci The bitmap_coords_info structure.
373 */
374 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) {
375 if (is_pixel_paintability_checked(trace_t)) {
376 return is_pixel_paintable(trace_t);
377 } else {
378 unsigned char *t = get_pixel(px, x, y, bci.width);
379 if (compare_pixels(t, orig_color, bci.merged_orig_pixel, bci.dtc, bci.threshold, bci.method)) {
380 mark_pixel_paintable(trace_t);
381 return true;
382 } else {
383 mark_pixel_not_paintable(trace_t);
384 return false;
385 }
386 }
387 }
389 /**
390 * \brief Perform the bitmap-to-vector tracing and place the traced path onto the document.
391 * \param px The trace pixel buffer to trace to SVG.
392 * \param desktop The desktop on which to place the final SVG path.
393 * \param transform The transform to apply to the final SVG path.
394 * \param union_with_selection If true, merge the final SVG path with the current selection.
395 */
396 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) {
397 SPDocument *document = sp_desktop_document(desktop);
399 unsigned char *trace_t;
401 GrayMap *gray_map = GrayMapCreate((max_x - min_x + 1), (max_y - min_y + 1));
402 unsigned int gray_map_y = 0;
403 for (unsigned int y = min_y; y <= max_y; y++) {
404 unsigned long *gray_map_t = gray_map->rows[gray_map_y];
406 trace_t = get_trace_pixel(trace_px, min_x, y, bci.width);
407 for (unsigned int x = min_x; x <= max_x; x++) {
408 *gray_map_t = is_pixel_colored(trace_t) ? GRAYMAP_BLACK : GRAYMAP_WHITE;
409 gray_map_t++;
410 trace_t++;
411 }
412 gray_map_y++;
413 }
415 Inkscape::Trace::Potrace::PotraceTracingEngine pte;
416 pte.keepGoing = 1;
417 std::vector<Inkscape::Trace::TracingEngineResult> results = pte.traceGrayMap(gray_map);
418 gray_map->destroy(gray_map);
420 Inkscape::XML::Node *layer_repr = SP_GROUP(desktop->currentLayer())->repr;
421 Inkscape::XML::Document *xml_doc = sp_document_repr_doc(desktop->doc());
423 long totalNodeCount = 0L;
425 Inkscape::Preferences *prefs = Inkscape::Preferences::get();
426 double offset = prefs->getDouble("/tools/paintbucket/offset", 0.0);
428 for (unsigned int i=0 ; i<results.size() ; i++) {
429 Inkscape::Trace::TracingEngineResult result = results[i];
430 totalNodeCount += result.getNodeCount();
432 Inkscape::XML::Node *pathRepr = xml_doc->createElement("svg:path");
433 /* Set style */
434 sp_desktop_apply_style_tool (desktop, pathRepr, "/tools/paintbucket", false);
436 Geom::PathVector pathv = sp_svg_read_pathv(result.getPathData().c_str());
437 Path *path = new Path;
438 path->LoadPathVector(pathv);
440 if (offset != 0) {
442 Shape *path_shape = new Shape();
444 path->ConvertWithBackData(0.03);
445 path->Fill(path_shape, 0);
446 delete path;
448 Shape *expanded_path_shape = new Shape();
450 expanded_path_shape->ConvertToShape(path_shape, fill_nonZero);
451 path_shape->MakeOffset(expanded_path_shape, offset * desktop->current_zoom(), join_round, 4);
452 expanded_path_shape->ConvertToShape(path_shape, fill_positive);
454 Path *expanded_path = new Path();
456 expanded_path->Reset();
457 expanded_path_shape->ConvertToForme(expanded_path);
458 expanded_path->ConvertEvenLines(1.0);
459 expanded_path->Simplify(1.0);
461 delete path_shape;
462 delete expanded_path_shape;
464 gchar *str = expanded_path->svg_dump_path();
465 if (str && *str) {
466 pathRepr->setAttribute("d", str);
467 g_free(str);
468 } else {
469 desktop->messageStack()->flash(Inkscape::WARNING_MESSAGE, _("<b>Too much inset</b>, the result is empty."));
470 Inkscape::GC::release(pathRepr);
471 g_free(str);
472 return;
473 }
475 delete expanded_path;
477 } else {
478 gchar *str = path->svg_dump_path();
479 delete path;
480 pathRepr->setAttribute("d", str);
481 g_free(str);
482 }
484 layer_repr->addChild(pathRepr, NULL);
486 SPObject *reprobj = document->getObjectByRepr(pathRepr);
487 if (reprobj) {
488 sp_item_write_transform(SP_ITEM(reprobj), pathRepr, transform, NULL);
490 // premultiply the item transform by the accumulated parent transform in the paste layer
491 Geom::Matrix local (sp_item_i2doc_affine(SP_GROUP(desktop->currentLayer())));
492 if (!local.isIdentity()) {
493 gchar const *t_str = pathRepr->attribute("transform");
494 Geom::Matrix item_t (Geom::identity());
495 if (t_str)
496 sp_svg_transform_read(t_str, &item_t);
497 item_t *= local.inverse();
498 // (we're dealing with unattached repr, so we write to its attr instead of using sp_item_set_transform)
499 gchar *affinestr=sp_svg_transform_write(item_t);
500 pathRepr->setAttribute("transform", affinestr);
501 g_free(affinestr);
502 }
504 Inkscape::Selection *selection = sp_desktop_selection(desktop);
506 pathRepr->setPosition(-1);
508 if (union_with_selection) {
509 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)));
510 selection->add(reprobj);
511 sp_selected_path_union_skip_undo(desktop);
512 } else {
513 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)));
514 selection->set(reprobj);
515 }
517 }
519 Inkscape::GC::release(pathRepr);
521 }
522 }
524 /**
525 * \brief The possible return states of perform_bitmap_scanline_check()
526 */
527 enum ScanlineCheckResult {
528 SCANLINE_CHECK_OK,
529 SCANLINE_CHECK_ABORTED,
530 SCANLINE_CHECK_BOUNDARY
531 };
533 /**
534 * \brief Determine if the provided coordinates are within the pixel buffer limits.
535 * \param x The X coordinate.
536 * \param y The Y coordinate.
537 * \param bci The bitmap_coords_info structure.
538 */
539 inline static bool coords_in_range(unsigned int x, unsigned int y, bitmap_coords_info bci) {
540 return (x < bci.width) &&
541 (y < bci.height);
542 }
544 #define PAINT_DIRECTION_LEFT 1
545 #define PAINT_DIRECTION_RIGHT 2
546 #define PAINT_DIRECTION_UP 4
547 #define PAINT_DIRECTION_DOWN 8
548 #define PAINT_DIRECTION_ALL 15
550 /**
551 * \brief Paint a pixel or a square (if autogap is enabled) on the trace pixel buffer
552 * \param px The rendered pixel buffer to check.
553 * \param trace_px The trace pixel buffer.
554 * \param orig_color The original selected pixel to use as the fill target color.
555 * \param bci The bitmap_coords_info structure.
556 * \param original_point_trace_t The original pixel in the trace pixel buffer to check.
557 */
558 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) {
559 if (bci.radius == 0) {
560 mark_pixel_colored(original_point_trace_t);
561 return PAINT_DIRECTION_ALL;
562 } else {
563 unsigned char *trace_t;
565 bool can_paint_up = true;
566 bool can_paint_down = true;
567 bool can_paint_left = true;
568 bool can_paint_right = true;
570 for (unsigned int ty = bci.y - bci.radius; ty <= bci.y + bci.radius; ty++) {
571 for (unsigned int tx = bci.x - bci.radius; tx <= bci.x + bci.radius; tx++) {
572 if (coords_in_range(tx, ty, bci)) {
573 trace_t = get_trace_pixel(trace_px, tx, ty, bci.width);
574 if (!is_pixel_colored(trace_t)) {
575 if (check_if_pixel_is_paintable(px, trace_t, tx, ty, orig_color, bci)) {
576 mark_pixel_colored(trace_t);
577 } else {
578 if (tx < bci.x) { can_paint_left = false; }
579 if (tx > bci.x) { can_paint_right = false; }
580 if (ty < bci.y) { can_paint_up = false; }
581 if (ty > bci.y) { can_paint_down = false; }
582 }
583 }
584 }
585 }
586 }
588 unsigned int paint_directions = 0;
589 if (can_paint_left) { paint_directions += PAINT_DIRECTION_LEFT; }
590 if (can_paint_right) { paint_directions += PAINT_DIRECTION_RIGHT; }
591 if (can_paint_up) { paint_directions += PAINT_DIRECTION_UP; }
592 if (can_paint_down) { paint_directions += PAINT_DIRECTION_DOWN; }
594 return paint_directions;
595 }
596 }
598 /**
599 * \brief Push a point to be checked onto the bottom of the rendered pixel buffer check queue.
600 * \param fill_queue The fill queue to add the point to.
601 * \param max_queue_size The maximum size of the fill queue.
602 * \param trace_t The trace pixel buffer pixel.
603 * \param x The X coordinate.
604 * \param y The Y coordinate.
605 */
606 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) {
607 if (!is_pixel_queued(trace_t)) {
608 if ((fill_queue->size() < max_queue_size)) {
609 fill_queue->push_back(Geom::Point(x, y));
610 mark_pixel_queued(trace_t);
611 }
612 }
613 }
615 /**
616 * \brief Shift a point to be checked onto the top of the rendered pixel buffer check queue.
617 * \param fill_queue The fill queue to add the point to.
618 * \param max_queue_size The maximum size of the fill queue.
619 * \param trace_t The trace pixel buffer pixel.
620 * \param x The X coordinate.
621 * \param y The Y coordinate.
622 */
623 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) {
624 if (!is_pixel_queued(trace_t)) {
625 if ((fill_queue->size() < max_queue_size)) {
626 fill_queue->push_front(Geom::Point(x, y));
627 mark_pixel_queued(trace_t);
628 }
629 }
630 }
632 /**
633 * \brief Scan a row in the rendered pixel buffer and add points to the fill queue as necessary.
634 * \param fill_queue The fill queue to add the point to.
635 * \param px The rendered pixel buffer.
636 * \param trace_px The trace pixel buffer.
637 * \param orig_color The original selected pixel to use as the fill target color.
638 * \param bci The bitmap_coords_info structure.
639 */
640 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) {
641 bool aborted = false;
642 bool reached_screen_boundary = false;
643 bool ok;
645 bool keep_tracing;
646 bool initial_paint = true;
648 unsigned char *current_trace_t = get_trace_pixel(trace_px, bci.x, bci.y, bci.width);
649 unsigned int paint_directions;
651 bool currently_painting_top = false;
652 bool currently_painting_bottom = false;
654 unsigned int top_ty = bci.y - 1;
655 unsigned int bottom_ty = bci.y + 1;
657 bool can_paint_top = (top_ty > 0);
658 bool can_paint_bottom = (bottom_ty < bci.height);
660 Geom::Point t = fill_queue->front();
662 do {
663 ok = false;
664 if (bci.is_left) {
665 keep_tracing = (bci.x != 0);
666 } else {
667 keep_tracing = (bci.x < bci.width);
668 }
670 *min_x = MIN(*min_x, bci.x);
671 *max_x = MAX(*max_x, bci.x);
673 if (keep_tracing) {
674 if (check_if_pixel_is_paintable(px, current_trace_t, bci.x, bci.y, orig_color, bci)) {
675 paint_directions = paint_pixel(px, trace_px, orig_color, bci, current_trace_t);
676 if (bci.radius == 0) {
677 mark_pixel_checked(current_trace_t);
678 if ((t[Geom::X] == bci.x) && (t[Geom::Y] == bci.y)) {
679 fill_queue->pop_front(); t = fill_queue->front();
680 }
681 }
683 if (can_paint_top) {
684 if (paint_directions & PAINT_DIRECTION_UP) {
685 unsigned char *trace_t = current_trace_t - bci.width;
686 if (!is_pixel_queued(trace_t)) {
687 bool ok_to_paint = check_if_pixel_is_paintable(px, trace_t, bci.x, top_ty, orig_color, bci);
689 if (initial_paint) { currently_painting_top = !ok_to_paint; }
691 if (ok_to_paint && (!currently_painting_top)) {
692 currently_painting_top = true;
693 push_point_onto_queue(fill_queue, bci.max_queue_size, trace_t, bci.x, top_ty);
694 }
695 if ((!ok_to_paint) && currently_painting_top) {
696 currently_painting_top = false;
697 }
698 }
699 }
700 }
702 if (can_paint_bottom) {
703 if (paint_directions & PAINT_DIRECTION_DOWN) {
704 unsigned char *trace_t = current_trace_t + bci.width;
705 if (!is_pixel_queued(trace_t)) {
706 bool ok_to_paint = check_if_pixel_is_paintable(px, trace_t, bci.x, bottom_ty, orig_color, bci);
708 if (initial_paint) { currently_painting_bottom = !ok_to_paint; }
710 if (ok_to_paint && (!currently_painting_bottom)) {
711 currently_painting_bottom = true;
712 push_point_onto_queue(fill_queue, bci.max_queue_size, trace_t, bci.x, bottom_ty);
713 }
714 if ((!ok_to_paint) && currently_painting_bottom) {
715 currently_painting_bottom = false;
716 }
717 }
718 }
719 }
721 if (bci.is_left) {
722 if (paint_directions & PAINT_DIRECTION_LEFT) {
723 bci.x--; current_trace_t--;
724 ok = true;
725 }
726 } else {
727 if (paint_directions & PAINT_DIRECTION_RIGHT) {
728 bci.x++; current_trace_t++;
729 ok = true;
730 }
731 }
733 initial_paint = false;
734 }
735 } else {
736 if (bci.bbox.min()[Geom::X] > bci.screen.min()[Geom::X]) {
737 aborted = true; break;
738 } else {
739 reached_screen_boundary = true;
740 }
741 }
742 } while (ok);
744 if (aborted) { return SCANLINE_CHECK_ABORTED; }
745 if (reached_screen_boundary) { return SCANLINE_CHECK_BOUNDARY; }
746 return SCANLINE_CHECK_OK;
747 }
749 /**
750 * \brief Sort the rendered pixel buffer check queue vertically.
751 */
752 static bool sort_fill_queue_vertical(Geom::Point a, Geom::Point b) {
753 return a[Geom::Y] > b[Geom::Y];
754 }
756 /**
757 * \brief Sort the rendered pixel buffer check queue horizontally.
758 */
759 static bool sort_fill_queue_horizontal(Geom::Point a, Geom::Point b) {
760 return a[Geom::X] > b[Geom::X];
761 }
763 /**
764 * \brief Perform a flood fill operation.
765 * \param event_context The event context for this tool.
766 * \param event The details of this event.
767 * \param union_with_selection If true, union the new fill with the current selection.
768 * \param is_point_fill If false, use the Rubberband "touch selection" to get the initial points for the fill.
769 * \param is_touch_fill If true, use only the initial contact point in the Rubberband "touch selection" as the fill target color.
770 */
771 static void sp_flood_do_flood_fill(SPEventContext *event_context, GdkEvent *event, bool union_with_selection, bool is_point_fill, bool is_touch_fill) {
772 SPDesktop *desktop = event_context->desktop;
773 SPDocument *document = sp_desktop_document(desktop);
775 /* Create new arena */
776 NRArena *arena = NRArena::create();
777 unsigned dkey = sp_item_display_key_new(1);
779 sp_document_ensure_up_to_date (document);
781 SPItem *document_root = SP_ITEM(SP_DOCUMENT_ROOT(document));
782 Geom::OptRect bbox = document_root->getBounds(Geom::identity());
784 if (!bbox) {
785 desktop->messageStack()->flash(Inkscape::WARNING_MESSAGE, _("<b>Area is not bounded</b>, cannot fill."));
786 return;
787 }
789 double zoom_scale = desktop->current_zoom();
791 // Render 160% of the physical display to the render pixel buffer, so that available
792 // fill areas off the screen can be included in the fill.
793 double padding = 1.6;
795 Geom::Rect screen = desktop->get_display_area();
797 unsigned int width = (int)ceil(screen.width() * zoom_scale * padding);
798 unsigned int height = (int)ceil(screen.height() * zoom_scale * padding);
800 Geom::Point origin(screen.min()[Geom::X],
801 sp_document_height(document) - screen.height() - screen.min()[Geom::Y]);
803 origin[Geom::X] = origin[Geom::X] + (screen.width() * ((1 - padding) / 2));
804 origin[Geom::Y] = origin[Geom::Y] + (screen.height() * ((1 - padding) / 2));
806 Geom::Scale scale(zoom_scale, zoom_scale);
807 Geom::Matrix affine = scale * Geom::Translate(-origin * scale);
809 /* Create ArenaItems and set transform */
810 NRArenaItem *root = sp_item_invoke_show(SP_ITEM(sp_document_root(document)), arena, dkey, SP_ITEM_SHOW_DISPLAY);
811 nr_arena_item_set_transform(NR_ARENA_ITEM(root), affine);
813 NRGC gc(NULL);
814 gc.transform.setIdentity();
816 NRRectL final_bbox;
817 final_bbox.x0 = 0;
818 final_bbox.y0 = 0; //row;
819 final_bbox.x1 = width;
820 final_bbox.y1 = height; //row + num_rows;
822 nr_arena_item_invoke_update(root, &final_bbox, &gc, NR_ARENA_ITEM_STATE_ALL, NR_ARENA_ITEM_STATE_NONE);
824 guchar *px = g_new(guchar, 4 * width * height);
826 NRPixBlock B;
827 nr_pixblock_setup_extern( &B, NR_PIXBLOCK_MODE_R8G8B8A8N,
828 final_bbox.x0, final_bbox.y0, final_bbox.x1, final_bbox.y1,
829 px, 4 * width, FALSE, FALSE );
831 SPNamedView *nv = sp_desktop_namedview(desktop);
832 unsigned long bgcolor = nv->pagecolor;
834 unsigned char dtc[4];
835 dtc[0] = NR_RGBA32_R(bgcolor);
836 dtc[1] = NR_RGBA32_G(bgcolor);
837 dtc[2] = NR_RGBA32_B(bgcolor);
838 dtc[3] = NR_RGBA32_A(bgcolor);
840 for (unsigned int fy = 0; fy < height; fy++) {
841 guchar *p = NR_PIXBLOCK_PX(&B) + fy * B.rs;
842 for (unsigned int fx = 0; fx < width; fx++) {
843 for (int i = 0; i < 4; i++) {
844 *p++ = dtc[i];
845 }
846 }
847 }
849 nr_arena_item_invoke_render(NULL, root, &final_bbox, &B, NR_ARENA_ITEM_RENDER_NO_CACHE );
850 nr_pixblock_release(&B);
852 // Hide items
853 sp_item_invoke_hide(SP_ITEM(sp_document_root(document)), dkey);
855 nr_object_unref((NRObject *) arena);
857 guchar *trace_px = g_new(guchar, width * height);
858 memset(trace_px, 0x00, width * height);
860 std::deque<Geom::Point> fill_queue;
861 std::queue<Geom::Point> color_queue;
863 std::vector<Geom::Point> fill_points;
865 bool aborted = false;
866 int y_limit = height - 1;
868 Inkscape::Preferences *prefs = Inkscape::Preferences::get();
869 PaintBucketChannels method = (PaintBucketChannels) prefs->getInt("/tools/paintbucket/channels", 0);
870 int threshold = prefs->getIntLimited("/tools/paintbucket/threshold", 1, 0, 100);
872 switch(method) {
873 case FLOOD_CHANNELS_ALPHA:
874 case FLOOD_CHANNELS_RGB:
875 case FLOOD_CHANNELS_R:
876 case FLOOD_CHANNELS_G:
877 case FLOOD_CHANNELS_B:
878 threshold = (255 * threshold) / 100;
879 break;
880 case FLOOD_CHANNELS_H:
881 case FLOOD_CHANNELS_S:
882 case FLOOD_CHANNELS_L:
883 break;
884 }
886 bitmap_coords_info bci;
888 bci.y_limit = y_limit;
889 bci.width = width;
890 bci.height = height;
891 bci.threshold = threshold;
892 bci.method = method;
893 bci.bbox = *bbox;
894 bci.screen = screen;
895 bci.dtc = dtc;
896 bci.radius = prefs->getIntLimited("/tools/paintbucket/autogap", 0, 0, 3);
897 bci.max_queue_size = (width * height) / 4;
898 bci.current_step = 0;
900 if (is_point_fill) {
901 fill_points.push_back(Geom::Point(event->button.x, event->button.y));
902 } else {
903 Inkscape::Rubberband::Rubberband *r = Inkscape::Rubberband::get(desktop);
904 fill_points = r->getPoints();
905 }
907 for (unsigned int i = 0; i < fill_points.size(); i++) {
908 Geom::Point pw = Geom::Point(fill_points[i][Geom::X] / zoom_scale, sp_document_height(document) + (fill_points[i][Geom::Y] / zoom_scale)) * affine;
910 pw[Geom::X] = (int)MIN(width - 1, MAX(0, pw[Geom::X]));
911 pw[Geom::Y] = (int)MIN(height - 1, MAX(0, pw[Geom::Y]));
913 if (is_touch_fill) {
914 if (i == 0) {
915 color_queue.push(pw);
916 } else {
917 unsigned char *trace_t = get_trace_pixel(trace_px, (int)pw[Geom::X], (int)pw[Geom::Y], width);
918 push_point_onto_queue(&fill_queue, bci.max_queue_size, trace_t, (int)pw[Geom::X], (int)pw[Geom::Y]);
919 }
920 } else {
921 color_queue.push(pw);
922 }
923 }
925 bool reached_screen_boundary = false;
927 bool first_run = true;
929 unsigned long sort_size_threshold = 5;
931 unsigned int min_y = height;
932 unsigned int max_y = 0;
933 unsigned int min_x = width;
934 unsigned int max_x = 0;
936 while (!color_queue.empty() && !aborted) {
937 Geom::Point color_point = color_queue.front();
938 color_queue.pop();
940 int cx = (int)color_point[Geom::X];
941 int cy = (int)color_point[Geom::Y];
943 unsigned char *orig_px = get_pixel(px, cx, cy, width);
944 unsigned char orig_color[4];
945 for (int i = 0; i < 4; i++) { orig_color[i] = orig_px[i]; }
947 unsigned char merged_orig[3];
949 merge_pixel_with_background(orig_color, dtc, merged_orig);
951 bci.merged_orig_pixel = merged_orig;
953 unsigned char *trace_t = get_trace_pixel(trace_px, cx, cy, width);
954 if (!is_pixel_checked(trace_t) && !is_pixel_colored(trace_t)) {
955 if (check_if_pixel_is_paintable(px, trace_px, cx, cy, orig_color, bci)) {
956 shift_point_onto_queue(&fill_queue, bci.max_queue_size, trace_t, cx, cy);
958 if (!first_run) {
959 for (unsigned int y = 0; y < height; y++) {
960 trace_t = get_trace_pixel(trace_px, 0, y, width);
961 for (unsigned int x = 0; x < width; x++) {
962 clear_pixel_paintability(trace_t);
963 trace_t++;
964 }
965 }
966 }
967 first_run = false;
968 }
969 }
971 unsigned long old_fill_queue_size = fill_queue.size();
973 while (!fill_queue.empty() && !aborted) {
974 Geom::Point cp = fill_queue.front();
976 if (bci.radius == 0) {
977 unsigned long new_fill_queue_size = fill_queue.size();
979 /*
980 * To reduce the number of points in the fill queue, periodically
981 * resort all of the points in the queue so that scanline checks
982 * can complete more quickly. A point cannot be checked twice
983 * in a normal scanline checks, so forcing scanline checks to start
984 * from one corner of the rendered area as often as possible
985 * will reduce the number of points that need to be checked and queued.
986 */
987 if (new_fill_queue_size > sort_size_threshold) {
988 if (new_fill_queue_size > old_fill_queue_size) {
989 std::sort(fill_queue.begin(), fill_queue.end(), sort_fill_queue_vertical);
991 std::deque<Geom::Point>::iterator start_sort = fill_queue.begin();
992 std::deque<Geom::Point>::iterator end_sort = fill_queue.begin();
993 unsigned int sort_y = (unsigned int)cp[Geom::Y];
994 unsigned int current_y = sort_y;
996 for (std::deque<Geom::Point>::iterator i = fill_queue.begin(); i != fill_queue.end(); i++) {
997 Geom::Point current = *i;
998 current_y = (unsigned int)current[Geom::Y];
999 if (current_y != sort_y) {
1000 if (start_sort != end_sort) {
1001 std::sort(start_sort, end_sort, sort_fill_queue_horizontal);
1002 }
1003 sort_y = current_y;
1004 start_sort = i;
1005 }
1006 end_sort = i;
1007 }
1008 if (start_sort != end_sort) {
1009 std::sort(start_sort, end_sort, sort_fill_queue_horizontal);
1010 }
1012 cp = fill_queue.front();
1013 }
1014 }
1016 old_fill_queue_size = new_fill_queue_size;
1017 }
1019 fill_queue.pop_front();
1021 int x = (int)cp[Geom::X];
1022 int y = (int)cp[Geom::Y];
1024 min_y = MIN((unsigned int)y, min_y);
1025 max_y = MAX((unsigned int)y, max_y);
1027 unsigned char *trace_t = get_trace_pixel(trace_px, x, y, width);
1028 if (!is_pixel_checked(trace_t)) {
1029 mark_pixel_checked(trace_t);
1031 if (y == 0) {
1032 if (bbox->min()[Geom::Y] > screen.min()[Geom::Y]) {
1033 aborted = true; break;
1034 } else {
1035 reached_screen_boundary = true;
1036 }
1037 }
1039 if (y == y_limit) {
1040 if (bbox->max()[Geom::Y] < screen.max()[Geom::Y]) {
1041 aborted = true; break;
1042 } else {
1043 reached_screen_boundary = true;
1044 }
1045 }
1047 bci.is_left = true;
1048 bci.x = x;
1049 bci.y = y;
1051 ScanlineCheckResult result = perform_bitmap_scanline_check(&fill_queue, px, trace_px, orig_color, bci, &min_x, &max_x);
1053 switch (result) {
1054 case SCANLINE_CHECK_ABORTED:
1055 aborted = true;
1056 break;
1057 case SCANLINE_CHECK_BOUNDARY:
1058 reached_screen_boundary = true;
1059 break;
1060 default:
1061 break;
1062 }
1064 if (bci.x < width) {
1065 trace_t++;
1066 if (!is_pixel_checked(trace_t) && !is_pixel_queued(trace_t)) {
1067 mark_pixel_checked(trace_t);
1068 bci.is_left = false;
1069 bci.x = x + 1;
1071 result = perform_bitmap_scanline_check(&fill_queue, px, trace_px, orig_color, bci, &min_x, &max_x);
1073 switch (result) {
1074 case SCANLINE_CHECK_ABORTED:
1075 aborted = true;
1076 break;
1077 case SCANLINE_CHECK_BOUNDARY:
1078 reached_screen_boundary = true;
1079 break;
1080 default:
1081 break;
1082 }
1083 }
1084 }
1085 }
1087 bci.current_step++;
1089 if (bci.current_step > bci.max_queue_size) {
1090 aborted = true;
1091 }
1092 }
1093 }
1095 g_free(px);
1097 if (aborted) {
1098 g_free(trace_px);
1099 desktop->messageStack()->flash(Inkscape::WARNING_MESSAGE, _("<b>Area is not bounded</b>, cannot fill."));
1100 return;
1101 }
1103 if (reached_screen_boundary) {
1104 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."));
1105 }
1107 unsigned int trace_padding = bci.radius + 1;
1108 if (min_y > trace_padding) { min_y -= trace_padding; }
1109 if (max_y < (y_limit - trace_padding)) { max_y += trace_padding; }
1110 if (min_x > trace_padding) { min_x -= trace_padding; }
1111 if (max_x < (width - 1 - trace_padding)) { max_x += trace_padding; }
1113 Geom::Point min_start = Geom::Point(min_x, min_y);
1115 affine = scale * Geom::Translate(-origin * scale - min_start);
1116 Geom::Matrix inverted_affine = Geom::Matrix(affine).inverse();
1118 do_trace(bci, trace_px, desktop, inverted_affine, min_x, max_x, min_y, max_y, union_with_selection);
1120 g_free(trace_px);
1122 sp_document_done(document, SP_VERB_CONTEXT_PAINTBUCKET, _("Fill bounded area"));
1123 }
1125 static gint sp_flood_context_item_handler(SPEventContext *event_context, SPItem *item, GdkEvent *event)
1126 {
1127 gint ret = FALSE;
1129 SPDesktop *desktop = event_context->desktop;
1131 switch (event->type) {
1132 case GDK_BUTTON_PRESS:
1133 if ((event->button.state & GDK_CONTROL_MASK) && event->button.button == 1 && !event_context->space_panning) {
1134 Geom::Point const button_w(event->button.x,
1135 event->button.y);
1137 SPItem *item = sp_event_context_find_item (desktop, button_w, TRUE, TRUE);
1139 Inkscape::XML::Node *pathRepr = SP_OBJECT_REPR(item);
1140 /* Set style */
1141 sp_desktop_apply_style_tool (desktop, pathRepr, "/tools/paintbucket", false);
1142 sp_document_done(sp_desktop_document(desktop), SP_VERB_CONTEXT_PAINTBUCKET, _("Set style on object"));
1143 ret = TRUE;
1144 }
1145 break;
1146 default:
1147 break;
1148 }
1150 if (((SPEventContextClass *) parent_class)->item_handler) {
1151 ret = ((SPEventContextClass *) parent_class)->item_handler(event_context, item, event);
1152 }
1154 return ret;
1155 }
1157 static gint sp_flood_context_root_handler(SPEventContext *event_context, GdkEvent *event)
1158 {
1159 static bool dragging;
1161 gint ret = FALSE;
1162 SPDesktop *desktop = event_context->desktop;
1164 switch (event->type) {
1165 case GDK_BUTTON_PRESS:
1166 if (event->button.button == 1 && !event_context->space_panning) {
1167 if (!(event->button.state & GDK_CONTROL_MASK)) {
1168 Geom::Point const button_w(event->button.x,
1169 event->button.y);
1171 if (Inkscape::have_viable_layer(desktop, event_context->defaultMessageContext())) {
1172 // save drag origin
1173 event_context->xp = (gint) button_w[Geom::X];
1174 event_context->yp = (gint) button_w[Geom::Y];
1175 event_context->within_tolerance = true;
1177 dragging = true;
1179 Geom::Point const p(desktop->w2d(button_w));
1180 Inkscape::Rubberband::get(desktop)->setMode(RUBBERBAND_MODE_TOUCHPATH);
1181 Inkscape::Rubberband::get(desktop)->start(desktop, p);
1182 }
1183 }
1184 }
1185 case GDK_MOTION_NOTIFY:
1186 if ( dragging
1187 && ( event->motion.state & GDK_BUTTON1_MASK ) && !event_context->space_panning)
1188 {
1189 if ( event_context->within_tolerance
1190 && ( abs( (gint) event->motion.x - event_context->xp ) < event_context->tolerance )
1191 && ( abs( (gint) event->motion.y - event_context->yp ) < event_context->tolerance ) ) {
1192 break; // do not drag if we're within tolerance from origin
1193 }
1195 event_context->within_tolerance = false;
1197 Geom::Point const motion_pt(event->motion.x, event->motion.y);
1198 Geom::Point const p(desktop->w2d(motion_pt));
1199 if (Inkscape::Rubberband::get(desktop)->is_started()) {
1200 Inkscape::Rubberband::get(desktop)->move(p);
1201 event_context->defaultMessageContext()->set(Inkscape::NORMAL_MESSAGE, _("<b>Draw over</b> areas to add to fill, hold <b>Alt</b> for touch fill"));
1202 gobble_motion_events(GDK_BUTTON1_MASK);
1203 }
1204 }
1205 break;
1207 case GDK_BUTTON_RELEASE:
1208 if (event->button.button == 1 && !event_context->space_panning) {
1209 Inkscape::Rubberband::Rubberband *r = Inkscape::Rubberband::get(desktop);
1210 if (r->is_started()) {
1211 // set "busy" cursor
1212 desktop->setWaitingCursor();
1214 if (SP_IS_EVENT_CONTEXT(event_context)) {
1215 // Since setWaitingCursor runs main loop iterations, we may have already left this tool!
1216 // So check if the tool is valid before doing anything
1217 dragging = false;
1219 bool is_point_fill = event_context->within_tolerance;
1220 bool is_touch_fill = event->button.state & GDK_MOD1_MASK;
1222 sp_flood_do_flood_fill(event_context, event, event->button.state & GDK_SHIFT_MASK, is_point_fill, is_touch_fill);
1224 desktop->clearWaitingCursor();
1225 // restore cursor when done; note that it may already be different if e.g. user
1226 // switched to another tool during interruptible tracing or drawing, in which case do nothing
1228 ret = TRUE;
1229 }
1231 r->stop();
1233 if (SP_IS_EVENT_CONTEXT(event_context)) {
1234 event_context->defaultMessageContext()->clear();
1235 }
1236 }
1237 }
1238 break;
1239 case GDK_KEY_PRESS:
1240 switch (get_group0_keyval (&event->key)) {
1241 case GDK_Up:
1242 case GDK_Down:
1243 case GDK_KP_Up:
1244 case GDK_KP_Down:
1245 // prevent the zoom field from activation
1246 if (!MOD__CTRL_ONLY)
1247 ret = TRUE;
1248 break;
1249 default:
1250 break;
1251 }
1252 break;
1253 default:
1254 break;
1255 }
1257 if (!ret) {
1258 if (((SPEventContextClass *) parent_class)->root_handler) {
1259 ret = ((SPEventContextClass *) parent_class)->root_handler(event_context, event);
1260 }
1261 }
1263 return ret;
1264 }
1267 static void sp_flood_finish(SPFloodContext *rc)
1268 {
1269 rc->_message_context->clear();
1271 if ( rc->item != NULL ) {
1272 SPDesktop * desktop;
1274 desktop = SP_EVENT_CONTEXT_DESKTOP(rc);
1276 SP_OBJECT(rc->item)->updateRepr();
1278 sp_canvas_end_forced_full_redraws(desktop->canvas);
1280 sp_desktop_selection(desktop)->set(rc->item);
1281 sp_document_done(sp_desktop_document(desktop), SP_VERB_CONTEXT_PAINTBUCKET,
1282 _("Fill bounded area"));
1284 rc->item = NULL;
1285 }
1286 }
1288 void flood_channels_set_channels( gint channels )
1289 {
1290 Inkscape::Preferences *prefs = Inkscape::Preferences::get();
1291 prefs->setInt("/tools/paintbucket/channels", channels);
1292 }
1294 /*
1295 Local Variables:
1296 mode:c++
1297 c-file-style:"stroustrup"
1298 c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
1299 indent-tabs-mode:nil
1300 fill-column:99
1301 End:
1302 */
1303 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=99 :