1 #define __SP_FLOOD_CONTEXT_C__
3 /** \file
4 * Bucket fill drawing context, works by bitmap filling an area on a rendered version of the current display and then tracing the result using potrace.
5 *
6 * Author:
7 * Lauris Kaplinski <lauris@kaplinski.com>
8 * bulia byak <buliabyak@users.sf.net>
9 * John Bintz <jcoswell@coswellproductions.org>
10 *
11 * Copyright (C) 2006 Johan Engelen <johan@shouraizou.nl>
12 * Copyright (C) 2000-2005 authors
13 * Copyright (C) 2000-2001 Ximian, Inc.
14 *
15 * Released under GNU GPL, read the file 'COPYING' for more information
16 */
18 #include "config.h"
20 #include <gdk/gdkkeysyms.h>
21 #include <queue>
22 #include <deque>
24 #include "macros.h"
25 #include "display/sp-canvas.h"
26 #include "document.h"
27 #include "sp-namedview.h"
28 #include "sp-object.h"
29 #include "sp-rect.h"
30 #include "selection.h"
31 #include "desktop-handles.h"
32 #include "desktop.h"
33 #include "desktop-style.h"
34 #include "message-stack.h"
35 #include "message-context.h"
36 #include "pixmaps/cursor-paintbucket.xpm"
37 #include "flood-context.h"
38 #include "sp-metrics.h"
39 #include <glibmm/i18n.h>
40 #include "object-edit.h"
41 #include "xml/repr.h"
42 #include "xml/node-event-vector.h"
43 #include "prefs-utils.h"
44 #include "context-fns.h"
45 #include "rubberband.h"
47 #include "display/nr-arena-item.h"
48 #include "display/nr-arena.h"
49 #include "display/nr-arena-image.h"
50 #include "display/canvas-arena.h"
51 #include "libnr/nr-pixops.h"
52 #include "libnr/nr-matrix-translate-ops.h"
53 #include "libnr/nr-scale-ops.h"
54 #include "libnr/nr-scale-translate-ops.h"
55 #include "libnr/nr-translate-matrix-ops.h"
56 #include "libnr/nr-translate-scale-ops.h"
57 #include "libnr/nr-matrix-ops.h"
58 #include <2geom/pathvector.h>
59 #include "sp-item.h"
60 #include "sp-root.h"
61 #include "sp-defs.h"
62 #include "sp-path.h"
63 #include "splivarot.h"
64 #include "livarot/Path.h"
65 #include "livarot/Shape.h"
66 #include "libnr/n-art-bpath.h"
67 #include "svg/svg.h"
68 #include "color.h"
70 #include "trace/trace.h"
71 #include "trace/imagemap.h"
72 #include "trace/potrace/inkscape-potrace.h"
74 static void sp_flood_context_class_init(SPFloodContextClass *klass);
75 static void sp_flood_context_init(SPFloodContext *flood_context);
76 static void sp_flood_context_dispose(GObject *object);
78 static void sp_flood_context_setup(SPEventContext *ec);
80 static gint sp_flood_context_root_handler(SPEventContext *event_context, GdkEvent *event);
81 static gint sp_flood_context_item_handler(SPEventContext *event_context, SPItem *item, GdkEvent *event);
83 static void sp_flood_finish(SPFloodContext *rc);
85 static SPEventContextClass *parent_class;
88 GtkType sp_flood_context_get_type()
89 {
90 static GType type = 0;
91 if (!type) {
92 GTypeInfo info = {
93 sizeof(SPFloodContextClass),
94 NULL, NULL,
95 (GClassInitFunc) sp_flood_context_class_init,
96 NULL, NULL,
97 sizeof(SPFloodContext),
98 4,
99 (GInstanceInitFunc) sp_flood_context_init,
100 NULL, /* value_table */
101 };
102 type = g_type_register_static(SP_TYPE_EVENT_CONTEXT, "SPFloodContext", &info, (GTypeFlags) 0);
103 }
104 return type;
105 }
107 static void sp_flood_context_class_init(SPFloodContextClass *klass)
108 {
109 GObjectClass *object_class = (GObjectClass *) klass;
110 SPEventContextClass *event_context_class = (SPEventContextClass *) klass;
112 parent_class = (SPEventContextClass *) g_type_class_peek_parent(klass);
114 object_class->dispose = sp_flood_context_dispose;
116 event_context_class->setup = sp_flood_context_setup;
117 event_context_class->root_handler = sp_flood_context_root_handler;
118 event_context_class->item_handler = sp_flood_context_item_handler;
119 }
121 static void sp_flood_context_init(SPFloodContext *flood_context)
122 {
123 SPEventContext *event_context = SP_EVENT_CONTEXT(flood_context);
125 event_context->cursor_shape = cursor_paintbucket_xpm;
126 event_context->hot_x = 11;
127 event_context->hot_y = 30;
128 event_context->xp = 0;
129 event_context->yp = 0;
130 event_context->tolerance = 4;
131 event_context->within_tolerance = false;
132 event_context->item_to_select = NULL;
134 event_context->shape_repr = NULL;
135 event_context->shape_knot_holder = 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 /* fixme: This is necessary because we do not grab */
151 if (rc->item) {
152 sp_flood_finish(rc);
153 }
155 if (ec->shape_repr) { // remove old listener
156 sp_repr_remove_listener_by_data(ec->shape_repr, ec);
157 Inkscape::GC::release(ec->shape_repr);
158 ec->shape_repr = 0;
159 }
161 if (rc->_message_context) {
162 delete rc->_message_context;
163 }
165 G_OBJECT_CLASS(parent_class)->dispose(object);
166 }
168 static Inkscape::XML::NodeEventVector ec_shape_repr_events = {
169 NULL, /* child_added */
170 NULL, /* child_removed */
171 ec_shape_event_attr_changed,
172 NULL, /* content_changed */
173 NULL /* order_changed */
174 };
176 /**
177 \brief Callback that processes the "changed" signal on the selection;
178 destroys old and creates new knotholder
179 */
180 void sp_flood_context_selection_changed(Inkscape::Selection *selection, gpointer data)
181 {
182 SPFloodContext *rc = SP_FLOOD_CONTEXT(data);
183 SPEventContext *ec = SP_EVENT_CONTEXT(rc);
185 if (ec->shape_repr) { // remove old listener
186 sp_repr_remove_listener_by_data(ec->shape_repr, ec);
187 Inkscape::GC::release(ec->shape_repr);
188 ec->shape_repr = 0;
189 }
191 SPItem *item = selection->singleItem();
192 if (item) {
193 Inkscape::XML::Node *shape_repr = SP_OBJECT_REPR(item);
194 if (shape_repr) {
195 ec->shape_repr = shape_repr;
196 Inkscape::GC::anchor(shape_repr);
197 sp_repr_add_listener(shape_repr, &ec_shape_repr_events, ec);
198 }
199 }
200 }
202 static void sp_flood_context_setup(SPEventContext *ec)
203 {
204 SPFloodContext *rc = SP_FLOOD_CONTEXT(ec);
206 if (((SPEventContextClass *) parent_class)->setup) {
207 ((SPEventContextClass *) parent_class)->setup(ec);
208 }
210 SPItem *item = sp_desktop_selection(ec->desktop)->singleItem();
211 if (item) {
212 Inkscape::XML::Node *shape_repr = SP_OBJECT_REPR(item);
213 if (shape_repr) {
214 ec->shape_repr = shape_repr;
215 Inkscape::GC::anchor(shape_repr);
216 sp_repr_add_listener(shape_repr, &ec_shape_repr_events, ec);
217 }
218 }
220 rc->sel_changed_connection.disconnect();
221 rc->sel_changed_connection = sp_desktop_selection(ec->desktop)->connectChanged(
222 sigc::bind(sigc::ptr_fun(&sp_flood_context_selection_changed), (gpointer)rc)
223 );
225 rc->_message_context = new Inkscape::MessageContext((ec->desktop)->messageStack());
227 if (prefs_get_int_attribute("tools.paintbucket", "selcue", 0) != 0) {
228 rc->enableSelectionCue();
229 }
230 }
232 /**
233 * \brief Merge a pixel with the background color.
234 * \param orig The pixel to merge with the background.
235 * \param bg The background color.
236 * \param base The pixel to merge the original and background into.
237 */
238 inline static void
239 merge_pixel_with_background (unsigned char *orig, unsigned char *bg,
240 unsigned char *base)
241 {
242 int precalc_bg_alpha = (255 * (255 - bg[3])) / 255;
244 for (int i = 0; i < 3; i++) {
245 base[i] = precalc_bg_alpha + (bg[i] * bg[3]) / 255;
246 base[i] = (base[i] * (255 - orig[3])) / 255 + (orig[i] * orig[3]) / 255;
247 }
248 }
250 /**
251 * \brief Get the pointer to a pixel in a pixel buffer.
252 * \param px The pixel buffer.
253 * \param x The X coordinate.
254 * \param y The Y coordinate.
255 * \param width The width of the pixel buffer.
256 */
257 inline unsigned char * get_pixel(guchar *px, int x, int y, int width) {
258 return px + (x + y * width) * 4;
259 }
261 inline unsigned char * get_trace_pixel(guchar *trace_px, int x, int y, int width) {
262 return trace_px + (x + y * width);
263 }
265 /**
266 * \brief Generate the list of trace channel selection entries.
267 */
268 GList * flood_channels_dropdown_items_list() {
269 GList *glist = NULL;
271 glist = g_list_append (glist, _("Visible Colors"));
272 glist = g_list_append (glist, _("Red"));
273 glist = g_list_append (glist, _("Green"));
274 glist = g_list_append (glist, _("Blue"));
275 glist = g_list_append (glist, _("Hue"));
276 glist = g_list_append (glist, _("Saturation"));
277 glist = g_list_append (glist, _("Lightness"));
278 glist = g_list_append (glist, _("Alpha"));
280 return glist;
281 }
283 /**
284 * \brief Generate the list of autogap selection entries.
285 */
286 GList * flood_autogap_dropdown_items_list() {
287 GList *glist = NULL;
289 glist = g_list_append (glist, _("None"));
290 glist = g_list_append (glist, _("Small"));
291 glist = g_list_append (glist, _("Medium"));
292 glist = g_list_append (glist, _("Large"));
294 return glist;
295 }
297 /**
298 * \brief Compare a pixel in a pixel buffer with another pixel to determine if a point should be included in the fill operation.
299 * \param check The pixel in the pixel buffer to check.
300 * \param orig The original selected pixel to use as the fill target color.
301 * \param merged_orig_pixel The original pixel merged with the background.
302 * \param dtc The desktop background color.
303 * \param threshold The fill threshold.
304 * \param method The fill method to use as defined in PaintBucketChannels.
305 */
306 static bool compare_pixels(unsigned char *check, unsigned char *orig, unsigned char *merged_orig_pixel, unsigned char *dtc, int threshold, PaintBucketChannels method) {
307 int diff = 0;
308 float hsl_check[3], hsl_orig[3];
310 if ((method == FLOOD_CHANNELS_H) ||
311 (method == FLOOD_CHANNELS_S) ||
312 (method == FLOOD_CHANNELS_L)) {
313 sp_color_rgb_to_hsl_floatv(hsl_check, check[0] / 255.0, check[1] / 255.0, check[2] / 255.0);
314 sp_color_rgb_to_hsl_floatv(hsl_orig, orig[0] / 255.0, orig[1] / 255.0, orig[2] / 255.0);
315 }
317 switch (method) {
318 case FLOOD_CHANNELS_ALPHA:
319 return ((int)abs(check[3] - orig[3]) <= threshold);
320 case FLOOD_CHANNELS_R:
321 return ((int)abs(check[0] - orig[0]) <= threshold);
322 case FLOOD_CHANNELS_G:
323 return ((int)abs(check[1] - orig[1]) <= threshold);
324 case FLOOD_CHANNELS_B:
325 return ((int)abs(check[2] - orig[2]) <= threshold);
326 case FLOOD_CHANNELS_RGB:
327 unsigned char merged_check[3];
329 merge_pixel_with_background(check, dtc, merged_check);
331 for (int i = 0; i < 3; i++) {
332 diff += (int)abs(merged_check[i] - merged_orig_pixel[i]);
333 }
334 return ((diff / 3) <= ((threshold * 3) / 4));
336 case FLOOD_CHANNELS_H:
337 return ((int)(fabs(hsl_check[0] - hsl_orig[0]) * 100.0) <= threshold);
338 case FLOOD_CHANNELS_S:
339 return ((int)(fabs(hsl_check[1] - hsl_orig[1]) * 100.0) <= threshold);
340 case FLOOD_CHANNELS_L:
341 return ((int)(fabs(hsl_check[2] - hsl_orig[2]) * 100.0) <= threshold);
342 }
344 return false;
345 }
347 enum {
348 PIXEL_CHECKED = 1,
349 PIXEL_QUEUED = 2,
350 PIXEL_PAINTABLE = 4,
351 PIXEL_NOT_PAINTABLE = 8,
352 PIXEL_COLORED = 16
353 };
355 static inline bool is_pixel_checked(unsigned char *t) { return (*t & PIXEL_CHECKED) == PIXEL_CHECKED; }
356 static inline bool is_pixel_queued(unsigned char *t) { return (*t & PIXEL_QUEUED) == PIXEL_QUEUED; }
357 static inline bool is_pixel_paintability_checked(unsigned char *t) {
358 return !((*t & PIXEL_PAINTABLE) == 0) && ((*t & PIXEL_NOT_PAINTABLE) == 0);
359 }
360 static inline bool is_pixel_paintable(unsigned char *t) { return (*t & PIXEL_PAINTABLE) == PIXEL_PAINTABLE; }
361 static inline bool is_pixel_colored(unsigned char *t) { return (*t & PIXEL_COLORED) == PIXEL_COLORED; }
363 static inline void mark_pixel_checked(unsigned char *t) { *t |= PIXEL_CHECKED; }
364 static inline void mark_pixel_unchecked(unsigned char *t) { *t ^= PIXEL_CHECKED; }
365 static inline void mark_pixel_queued(unsigned char *t) { *t |= PIXEL_QUEUED; }
366 static inline void mark_pixel_paintable(unsigned char *t) { *t |= PIXEL_PAINTABLE; *t ^= PIXEL_NOT_PAINTABLE; }
367 static inline void mark_pixel_not_paintable(unsigned char *t) { *t |= PIXEL_NOT_PAINTABLE; *t ^= PIXEL_PAINTABLE; }
368 static inline void mark_pixel_colored(unsigned char *t) { *t |= PIXEL_COLORED; }
370 static inline void clear_pixel_paintability(unsigned char *t) { *t ^= PIXEL_PAINTABLE; *t ^= PIXEL_NOT_PAINTABLE; }
372 struct bitmap_coords_info {
373 bool is_left;
374 unsigned int x;
375 unsigned int y;
376 int y_limit;
377 unsigned int width;
378 unsigned int height;
379 unsigned int threshold;
380 unsigned int radius;
381 PaintBucketChannels method;
382 unsigned char *dtc;
383 unsigned char *merged_orig_pixel;
384 NR::Rect bbox;
385 NR::Rect screen;
386 unsigned int max_queue_size;
387 unsigned int current_step;
388 };
390 /**
391 * \brief Check if a pixel can be included in the fill.
392 * \param px The rendered pixel buffer to check.
393 * \param trace_t The pixel in the trace pixel buffer to check or mark.
394 * \param x The X coordinate.
395 * \param y The y coordinate.
396 * \param orig_color The original selected pixel to use as the fill target color.
397 * \param bci The bitmap_coords_info structure.
398 */
399 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) {
400 if (is_pixel_paintability_checked(trace_t)) {
401 return is_pixel_paintable(trace_t);
402 } else {
403 unsigned char *t = get_pixel(px, x, y, bci.width);
404 if (compare_pixels(t, orig_color, bci.merged_orig_pixel, bci.dtc, bci.threshold, bci.method)) {
405 mark_pixel_paintable(trace_t);
406 return true;
407 } else {
408 mark_pixel_not_paintable(trace_t);
409 return false;
410 }
411 }
412 }
414 /**
415 * \brief Perform the bitmap-to-vector tracing and place the traced path onto the document.
416 * \param px The trace pixel buffer to trace to SVG.
417 * \param desktop The desktop on which to place the final SVG path.
418 * \param transform The transform to apply to the final SVG path.
419 * \param union_with_selection If true, merge the final SVG path with the current selection.
420 */
421 static void do_trace(bitmap_coords_info bci, guchar *trace_px, SPDesktop *desktop, NR::Matrix transform, unsigned int min_x, unsigned int max_x, unsigned int min_y, unsigned int max_y, bool union_with_selection) {
422 SPDocument *document = sp_desktop_document(desktop);
424 unsigned char *trace_t;
426 GrayMap *gray_map = GrayMapCreate((max_x - min_x + 1), (max_y - min_y + 1));
427 unsigned int gray_map_y = 0;
428 for (unsigned int y = min_y; y <= max_y; y++) {
429 unsigned long *gray_map_t = gray_map->rows[gray_map_y];
431 trace_t = get_trace_pixel(trace_px, min_x, y, bci.width);
432 for (unsigned int x = min_x; x <= max_x; x++) {
433 *gray_map_t = is_pixel_colored(trace_t) ? GRAYMAP_BLACK : GRAYMAP_WHITE;
434 gray_map_t++;
435 trace_t++;
436 }
437 gray_map_y++;
438 }
440 Inkscape::Trace::Potrace::PotraceTracingEngine pte;
441 std::vector<Inkscape::Trace::TracingEngineResult> results = pte.traceGrayMap(gray_map);
442 gray_map->destroy(gray_map);
444 Inkscape::XML::Node *layer_repr = SP_GROUP(desktop->currentLayer())->repr;
445 Inkscape::XML::Document *xml_doc = sp_document_repr_doc(desktop->doc());
447 long totalNodeCount = 0L;
449 double offset = prefs_get_double_attribute("tools.paintbucket", "offset", 0.0);
451 for (unsigned int i=0 ; i<results.size() ; i++) {
452 Inkscape::Trace::TracingEngineResult result = results[i];
453 totalNodeCount += result.getNodeCount();
455 Inkscape::XML::Node *pathRepr = xml_doc->createElement("svg:path");
456 /* Set style */
457 sp_desktop_apply_style_tool (desktop, pathRepr, "tools.paintbucket", false);
459 Geom::PathVector pathv = sp_svg_read_pathv(result.getPathData().c_str());
460 Path *path = new Path;
461 path->LoadPathVector(pathv);
463 if (offset != 0) {
465 Shape *path_shape = new Shape();
467 path->ConvertWithBackData(0.03);
468 path->Fill(path_shape, 0);
469 delete path;
471 Shape *expanded_path_shape = new Shape();
473 expanded_path_shape->ConvertToShape(path_shape, fill_nonZero);
474 path_shape->MakeOffset(expanded_path_shape, offset * desktop->current_zoom(), join_round, 4);
475 expanded_path_shape->ConvertToShape(path_shape, fill_positive);
477 Path *expanded_path = new Path();
479 expanded_path->Reset();
480 expanded_path_shape->ConvertToForme(expanded_path);
481 expanded_path->ConvertEvenLines(1.0);
482 expanded_path->Simplify(1.0);
484 delete path_shape;
485 delete expanded_path_shape;
487 gchar *str = expanded_path->svg_dump_path();
488 if (str && *str) {
489 pathRepr->setAttribute("d", str);
490 g_free(str);
491 } else {
492 desktop->messageStack()->flash(Inkscape::WARNING_MESSAGE, _("<b>Too much inset</b>, the result is empty."));
493 Inkscape::GC::release(pathRepr);
494 g_free(str);
495 return;
496 }
498 delete expanded_path;
500 } else {
501 gchar *str = path->svg_dump_path();
502 delete path;
503 pathRepr->setAttribute("d", str);
504 g_free(str);
505 }
507 layer_repr->addChild(pathRepr, NULL);
509 SPObject *reprobj = document->getObjectByRepr(pathRepr);
510 if (reprobj) {
511 sp_item_write_transform(SP_ITEM(reprobj), pathRepr, transform, NULL);
513 // premultiply the item transform by the accumulated parent transform in the paste layer
514 NR::Matrix local = from_2geom(sp_item_i2doc_affine(SP_GROUP(desktop->currentLayer())));
515 if (!local.test_identity()) {
516 gchar const *t_str = pathRepr->attribute("transform");
517 NR::Matrix item_t (NR::identity());
518 if (t_str)
519 sp_svg_transform_read(t_str, &item_t);
520 item_t *= local.inverse();
521 // (we're dealing with unattached repr, so we write to its attr instead of using sp_item_set_transform)
522 gchar *affinestr=sp_svg_transform_write(item_t);
523 pathRepr->setAttribute("transform", affinestr);
524 g_free(affinestr);
525 }
527 Inkscape::Selection *selection = sp_desktop_selection(desktop);
529 pathRepr->setPosition(-1);
531 if (union_with_selection) {
532 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)));
533 selection->add(reprobj);
534 sp_selected_path_union_skip_undo();
535 } else {
536 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)));
537 selection->set(reprobj);
538 }
540 }
542 Inkscape::GC::release(pathRepr);
544 }
545 }
547 /**
548 * \brief The possible return states of perform_bitmap_scanline_check()
549 */
550 enum ScanlineCheckResult {
551 SCANLINE_CHECK_OK,
552 SCANLINE_CHECK_ABORTED,
553 SCANLINE_CHECK_BOUNDARY
554 };
556 /**
557 * \brief Determine if the provided coordinates are within the pixel buffer limits.
558 * \param x The X coordinate.
559 * \param y The Y coordinate.
560 * \param bci The bitmap_coords_info structure.
561 */
562 inline static bool coords_in_range(unsigned int x, unsigned int y, bitmap_coords_info bci) {
563 return (x < bci.width) &&
564 (y < bci.height);
565 }
567 #define PAINT_DIRECTION_LEFT 1
568 #define PAINT_DIRECTION_RIGHT 2
569 #define PAINT_DIRECTION_UP 4
570 #define PAINT_DIRECTION_DOWN 8
571 #define PAINT_DIRECTION_ALL 15
573 /**
574 * \brief Paint a pixel or a square (if autogap is enabled) on the trace pixel buffer
575 * \param px The rendered pixel buffer to check.
576 * \param trace_px The trace pixel buffer.
577 * \param orig_color The original selected pixel to use as the fill target color.
578 * \param bci The bitmap_coords_info structure.
579 * \param original_point_trace_t The original pixel in the trace pixel buffer to check.
580 */
581 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) {
582 if (bci.radius == 0) {
583 mark_pixel_colored(original_point_trace_t);
584 return PAINT_DIRECTION_ALL;
585 } else {
586 unsigned char *trace_t;
588 bool can_paint_up = true;
589 bool can_paint_down = true;
590 bool can_paint_left = true;
591 bool can_paint_right = true;
593 for (unsigned int ty = bci.y - bci.radius; ty <= bci.y + bci.radius; ty++) {
594 for (unsigned int tx = bci.x - bci.radius; tx <= bci.x + bci.radius; tx++) {
595 if (coords_in_range(tx, ty, bci)) {
596 trace_t = get_trace_pixel(trace_px, tx, ty, bci.width);
597 if (!is_pixel_colored(trace_t)) {
598 if (check_if_pixel_is_paintable(px, trace_t, tx, ty, orig_color, bci)) {
599 mark_pixel_colored(trace_t);
600 } else {
601 if (tx < bci.x) { can_paint_left = false; }
602 if (tx > bci.x) { can_paint_right = false; }
603 if (ty < bci.y) { can_paint_up = false; }
604 if (ty > bci.y) { can_paint_down = false; }
605 }
606 }
607 }
608 }
609 }
611 unsigned int paint_directions = 0;
612 if (can_paint_left) { paint_directions += PAINT_DIRECTION_LEFT; }
613 if (can_paint_right) { paint_directions += PAINT_DIRECTION_RIGHT; }
614 if (can_paint_up) { paint_directions += PAINT_DIRECTION_UP; }
615 if (can_paint_down) { paint_directions += PAINT_DIRECTION_DOWN; }
617 return paint_directions;
618 }
619 }
621 /**
622 * \brief Push a point to be checked onto the bottom of the rendered pixel buffer check queue.
623 * \param fill_queue The fill queue to add the point to.
624 * \param max_queue_size The maximum size of the fill queue.
625 * \param trace_t The trace pixel buffer pixel.
626 * \param x The X coordinate.
627 * \param y The Y coordinate.
628 */
629 static void push_point_onto_queue(std::deque<NR::Point> *fill_queue, unsigned int max_queue_size, unsigned char *trace_t, unsigned int x, unsigned int y) {
630 if (!is_pixel_queued(trace_t)) {
631 if ((fill_queue->size() < max_queue_size)) {
632 fill_queue->push_back(NR::Point(x, y));
633 mark_pixel_queued(trace_t);
634 }
635 }
636 }
638 /**
639 * \brief Shift a point to be checked onto the top of the rendered pixel buffer check queue.
640 * \param fill_queue The fill queue to add the point to.
641 * \param max_queue_size The maximum size of the fill queue.
642 * \param trace_t The trace pixel buffer pixel.
643 * \param x The X coordinate.
644 * \param y The Y coordinate.
645 */
646 static void shift_point_onto_queue(std::deque<NR::Point> *fill_queue, unsigned int max_queue_size, unsigned char *trace_t, unsigned int x, unsigned int y) {
647 if (!is_pixel_queued(trace_t)) {
648 if ((fill_queue->size() < max_queue_size)) {
649 fill_queue->push_front(NR::Point(x, y));
650 mark_pixel_queued(trace_t);
651 }
652 }
653 }
655 /**
656 * \brief Scan a row in the rendered pixel buffer and add points to the fill queue as necessary.
657 * \param fill_queue The fill queue to add the point to.
658 * \param px The rendered pixel buffer.
659 * \param trace_px The trace pixel buffer.
660 * \param orig_color The original selected pixel to use as the fill target color.
661 * \param bci The bitmap_coords_info structure.
662 */
663 static ScanlineCheckResult perform_bitmap_scanline_check(std::deque<NR::Point> *fill_queue, guchar *px, guchar *trace_px, unsigned char *orig_color, bitmap_coords_info bci, unsigned int *min_x, unsigned int *max_x) {
664 bool aborted = false;
665 bool reached_screen_boundary = false;
666 bool ok;
668 bool keep_tracing;
669 bool initial_paint = true;
671 unsigned char *current_trace_t = get_trace_pixel(trace_px, bci.x, bci.y, bci.width);
672 unsigned int paint_directions;
674 bool currently_painting_top = false;
675 bool currently_painting_bottom = false;
677 unsigned int top_ty = bci.y - 1;
678 unsigned int bottom_ty = bci.y + 1;
680 bool can_paint_top = (top_ty > 0);
681 bool can_paint_bottom = (bottom_ty < bci.height);
683 NR::Point t = fill_queue->front();
685 do {
686 ok = false;
687 if (bci.is_left) {
688 keep_tracing = (bci.x != 0);
689 } else {
690 keep_tracing = (bci.x < bci.width);
691 }
693 *min_x = MIN(*min_x, bci.x);
694 *max_x = MAX(*max_x, bci.x);
696 if (keep_tracing) {
697 if (check_if_pixel_is_paintable(px, current_trace_t, bci.x, bci.y, orig_color, bci)) {
698 paint_directions = paint_pixel(px, trace_px, orig_color, bci, current_trace_t);
699 if (bci.radius == 0) {
700 mark_pixel_checked(current_trace_t);
701 if ((t[NR::X] == bci.x) && (t[NR::Y] == bci.y)) {
702 fill_queue->pop_front(); t = fill_queue->front();
703 }
704 }
706 if (can_paint_top) {
707 if (paint_directions & PAINT_DIRECTION_UP) {
708 unsigned char *trace_t = current_trace_t - bci.width;
709 if (!is_pixel_queued(trace_t)) {
710 bool ok_to_paint = check_if_pixel_is_paintable(px, trace_t, bci.x, top_ty, orig_color, bci);
712 if (initial_paint) { currently_painting_top = !ok_to_paint; }
714 if (ok_to_paint && (!currently_painting_top)) {
715 currently_painting_top = true;
716 push_point_onto_queue(fill_queue, bci.max_queue_size, trace_t, bci.x, top_ty);
717 }
718 if ((!ok_to_paint) && currently_painting_top) {
719 currently_painting_top = false;
720 }
721 }
722 }
723 }
725 if (can_paint_bottom) {
726 if (paint_directions & PAINT_DIRECTION_DOWN) {
727 unsigned char *trace_t = current_trace_t + bci.width;
728 if (!is_pixel_queued(trace_t)) {
729 bool ok_to_paint = check_if_pixel_is_paintable(px, trace_t, bci.x, bottom_ty, orig_color, bci);
731 if (initial_paint) { currently_painting_bottom = !ok_to_paint; }
733 if (ok_to_paint && (!currently_painting_bottom)) {
734 currently_painting_bottom = true;
735 push_point_onto_queue(fill_queue, bci.max_queue_size, trace_t, bci.x, bottom_ty);
736 }
737 if ((!ok_to_paint) && currently_painting_bottom) {
738 currently_painting_bottom = false;
739 }
740 }
741 }
742 }
744 if (bci.is_left) {
745 if (paint_directions & PAINT_DIRECTION_LEFT) {
746 bci.x--; current_trace_t--;
747 ok = true;
748 }
749 } else {
750 if (paint_directions & PAINT_DIRECTION_RIGHT) {
751 bci.x++; current_trace_t++;
752 ok = true;
753 }
754 }
756 initial_paint = false;
757 }
758 } else {
759 if (bci.bbox.min()[NR::X] > bci.screen.min()[NR::X]) {
760 aborted = true; break;
761 } else {
762 reached_screen_boundary = true;
763 }
764 }
765 } while (ok);
767 if (aborted) { return SCANLINE_CHECK_ABORTED; }
768 if (reached_screen_boundary) { return SCANLINE_CHECK_BOUNDARY; }
769 return SCANLINE_CHECK_OK;
770 }
772 /**
773 * \brief Sort the rendered pixel buffer check queue vertically.
774 */
775 static bool sort_fill_queue_vertical(NR::Point a, NR::Point b) {
776 return a[NR::Y] > b[NR::Y];
777 }
779 /**
780 * \brief Sort the rendered pixel buffer check queue horizontally.
781 */
782 static bool sort_fill_queue_horizontal(NR::Point a, NR::Point b) {
783 return a[NR::X] > b[NR::X];
784 }
786 /**
787 * \brief Perform a flood fill operation.
788 * \param event_context The event context for this tool.
789 * \param event The details of this event.
790 * \param union_with_selection If true, union the new fill with the current selection.
791 * \param is_point_fill If false, use the Rubberband "touch selection" to get the initial points for the fill.
792 * \param is_touch_fill If true, use only the initial contact point in the Rubberband "touch selection" as the fill target color.
793 */
794 static void sp_flood_do_flood_fill(SPEventContext *event_context, GdkEvent *event, bool union_with_selection, bool is_point_fill, bool is_touch_fill) {
795 SPDesktop *desktop = event_context->desktop;
796 SPDocument *document = sp_desktop_document(desktop);
798 /* Create new arena */
799 NRArena *arena = NRArena::create();
800 unsigned dkey = sp_item_display_key_new(1);
802 sp_document_ensure_up_to_date (document);
804 SPItem *document_root = SP_ITEM(SP_DOCUMENT_ROOT(document));
805 NR::Maybe<NR::Rect> bbox = document_root->getBounds(NR::identity());
807 if (!bbox) {
808 desktop->messageStack()->flash(Inkscape::WARNING_MESSAGE, _("<b>Area is not bounded</b>, cannot fill."));
809 return;
810 }
812 double zoom_scale = desktop->current_zoom();
814 // Render 160% of the physical display to the render pixel buffer, so that available
815 // fill areas off the screen can be included in the fill.
816 double padding = 1.6;
818 NR::Rect screen = desktop->get_display_area();
820 unsigned int width = (int)ceil(screen.extent(NR::X) * zoom_scale * padding);
821 unsigned int height = (int)ceil(screen.extent(NR::Y) * zoom_scale * padding);
823 NR::Point origin(screen.min()[NR::X],
824 sp_document_height(document) - screen.extent(NR::Y) - screen.min()[NR::Y]);
826 origin[NR::X] = origin[NR::X] + (screen.extent(NR::X) * ((1 - padding) / 2));
827 origin[NR::Y] = origin[NR::Y] + (screen.extent(NR::Y) * ((1 - padding) / 2));
829 NR::scale scale(zoom_scale, zoom_scale);
830 NR::Matrix affine = scale * NR::translate(-origin * scale);
832 /* Create ArenaItems and set transform */
833 NRArenaItem *root = sp_item_invoke_show(SP_ITEM(sp_document_root(document)), arena, dkey, SP_ITEM_SHOW_DISPLAY);
834 nr_arena_item_set_transform(NR_ARENA_ITEM(root), affine);
836 NRGC gc(NULL);
837 gc.transform.set_identity();
839 NRRectL final_bbox;
840 final_bbox.x0 = 0;
841 final_bbox.y0 = 0; //row;
842 final_bbox.x1 = width;
843 final_bbox.y1 = height; //row + num_rows;
845 nr_arena_item_invoke_update(root, &final_bbox, &gc, NR_ARENA_ITEM_STATE_ALL, NR_ARENA_ITEM_STATE_NONE);
847 guchar *px = g_new(guchar, 4 * width * height);
849 NRPixBlock B;
850 nr_pixblock_setup_extern( &B, NR_PIXBLOCK_MODE_R8G8B8A8N,
851 final_bbox.x0, final_bbox.y0, final_bbox.x1, final_bbox.y1,
852 px, 4 * width, FALSE, FALSE );
854 SPNamedView *nv = sp_desktop_namedview(desktop);
855 unsigned long bgcolor = nv->pagecolor;
857 unsigned char dtc[4];
858 dtc[0] = NR_RGBA32_R(bgcolor);
859 dtc[1] = NR_RGBA32_G(bgcolor);
860 dtc[2] = NR_RGBA32_B(bgcolor);
861 dtc[3] = NR_RGBA32_A(bgcolor);
863 for (unsigned int fy = 0; fy < height; fy++) {
864 guchar *p = NR_PIXBLOCK_PX(&B) + fy * B.rs;
865 for (unsigned int fx = 0; fx < width; fx++) {
866 for (int i = 0; i < 4; i++) {
867 *p++ = dtc[i];
868 }
869 }
870 }
872 nr_arena_item_invoke_render(NULL, root, &final_bbox, &B, NR_ARENA_ITEM_RENDER_NO_CACHE );
873 nr_pixblock_release(&B);
875 // Hide items
876 sp_item_invoke_hide(SP_ITEM(sp_document_root(document)), dkey);
878 nr_arena_item_unref(root);
879 nr_object_unref((NRObject *) arena);
881 guchar *trace_px = g_new(guchar, width * height);
882 memset(trace_px, 0x00, width * height);
884 std::deque<NR::Point> fill_queue;
885 std::queue<NR::Point> color_queue;
887 std::vector<NR::Point> fill_points;
889 bool aborted = false;
890 int y_limit = height - 1;
892 PaintBucketChannels method = (PaintBucketChannels)prefs_get_int_attribute("tools.paintbucket", "channels", 0);
893 int threshold = prefs_get_int_attribute_limited("tools.paintbucket", "threshold", 1, 0, 100);
895 switch(method) {
896 case FLOOD_CHANNELS_ALPHA:
897 case FLOOD_CHANNELS_RGB:
898 case FLOOD_CHANNELS_R:
899 case FLOOD_CHANNELS_G:
900 case FLOOD_CHANNELS_B:
901 threshold = (255 * threshold) / 100;
902 break;
903 case FLOOD_CHANNELS_H:
904 case FLOOD_CHANNELS_S:
905 case FLOOD_CHANNELS_L:
906 break;
907 }
909 bitmap_coords_info bci;
911 bci.y_limit = y_limit;
912 bci.width = width;
913 bci.height = height;
914 bci.threshold = threshold;
915 bci.method = method;
916 bci.bbox = *bbox;
917 bci.screen = screen;
918 bci.dtc = dtc;
919 bci.radius = prefs_get_int_attribute_limited("tools.paintbucket", "autogap", 0, 0, 3);
920 bci.max_queue_size = (width * height) / 4;
921 bci.current_step = 0;
923 if (is_point_fill) {
924 fill_points.push_back(NR::Point(event->button.x, event->button.y));
925 } else {
926 Inkscape::Rubberband::Rubberband *r = Inkscape::Rubberband::get();
927 fill_points = r->getPoints();
928 }
930 for (unsigned int i = 0; i < fill_points.size(); i++) {
931 NR::Point pw = NR::Point(fill_points[i][NR::X] / zoom_scale, sp_document_height(document) + (fill_points[i][NR::Y] / zoom_scale)) * affine;
933 pw[NR::X] = (int)MIN(width - 1, MAX(0, pw[NR::X]));
934 pw[NR::Y] = (int)MIN(height - 1, MAX(0, pw[NR::Y]));
936 if (is_touch_fill) {
937 if (i == 0) {
938 color_queue.push(pw);
939 } else {
940 unsigned char *trace_t = get_trace_pixel(trace_px, (int)pw[NR::X], (int)pw[NR::Y], width);
941 push_point_onto_queue(&fill_queue, bci.max_queue_size, trace_t, (int)pw[NR::X], (int)pw[NR::Y]);
942 }
943 } else {
944 color_queue.push(pw);
945 }
946 }
948 bool reached_screen_boundary = false;
950 bool first_run = true;
952 unsigned long sort_size_threshold = 5;
954 unsigned int min_y = height;
955 unsigned int max_y = 0;
956 unsigned int min_x = width;
957 unsigned int max_x = 0;
959 while (!color_queue.empty() && !aborted) {
960 NR::Point color_point = color_queue.front();
961 color_queue.pop();
963 int cx = (int)color_point[NR::X];
964 int cy = (int)color_point[NR::Y];
966 unsigned char *orig_px = get_pixel(px, cx, cy, width);
967 unsigned char orig_color[4];
968 for (int i = 0; i < 4; i++) { orig_color[i] = orig_px[i]; }
970 unsigned char merged_orig[3];
972 merge_pixel_with_background(orig_color, dtc, merged_orig);
974 bci.merged_orig_pixel = merged_orig;
976 unsigned char *trace_t = get_trace_pixel(trace_px, cx, cy, width);
977 if (!is_pixel_checked(trace_t) && !is_pixel_colored(trace_t)) {
978 if (check_if_pixel_is_paintable(px, trace_px, cx, cy, orig_color, bci)) {
979 shift_point_onto_queue(&fill_queue, bci.max_queue_size, trace_t, cx, cy);
981 if (!first_run) {
982 for (unsigned int y = 0; y < height; y++) {
983 trace_t = get_trace_pixel(trace_px, 0, y, width);
984 for (unsigned int x = 0; x < width; x++) {
985 clear_pixel_paintability(trace_t);
986 trace_t++;
987 }
988 }
989 }
990 first_run = false;
991 }
992 }
994 unsigned long old_fill_queue_size = fill_queue.size();
996 while (!fill_queue.empty() && !aborted) {
997 NR::Point cp = fill_queue.front();
999 if (bci.radius == 0) {
1000 unsigned long new_fill_queue_size = fill_queue.size();
1002 /*
1003 * To reduce the number of points in the fill queue, periodically
1004 * resort all of the points in the queue so that scanline checks
1005 * can complete more quickly. A point cannot be checked twice
1006 * in a normal scanline checks, so forcing scanline checks to start
1007 * from one corner of the rendered area as often as possible
1008 * will reduce the number of points that need to be checked and queued.
1009 */
1010 if (new_fill_queue_size > sort_size_threshold) {
1011 if (new_fill_queue_size > old_fill_queue_size) {
1012 std::sort(fill_queue.begin(), fill_queue.end(), sort_fill_queue_vertical);
1014 std::deque<NR::Point>::iterator start_sort = fill_queue.begin();
1015 std::deque<NR::Point>::iterator end_sort = fill_queue.begin();
1016 unsigned int sort_y = (unsigned int)cp[NR::Y];
1017 unsigned int current_y = sort_y;
1019 for (std::deque<NR::Point>::iterator i = fill_queue.begin(); i != fill_queue.end(); i++) {
1020 NR::Point current = *i;
1021 current_y = (unsigned int)current[NR::Y];
1022 if (current_y != sort_y) {
1023 if (start_sort != end_sort) {
1024 std::sort(start_sort, end_sort, sort_fill_queue_horizontal);
1025 }
1026 sort_y = current_y;
1027 start_sort = i;
1028 }
1029 end_sort = i;
1030 }
1031 if (start_sort != end_sort) {
1032 std::sort(start_sort, end_sort, sort_fill_queue_horizontal);
1033 }
1035 cp = fill_queue.front();
1036 }
1037 }
1039 old_fill_queue_size = new_fill_queue_size;
1040 }
1042 fill_queue.pop_front();
1044 int x = (int)cp[NR::X];
1045 int y = (int)cp[NR::Y];
1047 min_y = MIN((unsigned int)y, min_y);
1048 max_y = MAX((unsigned int)y, max_y);
1050 unsigned char *trace_t = get_trace_pixel(trace_px, x, y, width);
1051 if (!is_pixel_checked(trace_t)) {
1052 mark_pixel_checked(trace_t);
1054 if (y == 0) {
1055 if (bbox->min()[NR::Y] > screen.min()[NR::Y]) {
1056 aborted = true; break;
1057 } else {
1058 reached_screen_boundary = true;
1059 }
1060 }
1062 if (y == y_limit) {
1063 if (bbox->max()[NR::Y] < screen.max()[NR::Y]) {
1064 aborted = true; break;
1065 } else {
1066 reached_screen_boundary = true;
1067 }
1068 }
1070 bci.is_left = true;
1071 bci.x = x;
1072 bci.y = y;
1074 ScanlineCheckResult result = perform_bitmap_scanline_check(&fill_queue, px, trace_px, orig_color, bci, &min_x, &max_x);
1076 switch (result) {
1077 case SCANLINE_CHECK_ABORTED:
1078 aborted = true;
1079 break;
1080 case SCANLINE_CHECK_BOUNDARY:
1081 reached_screen_boundary = true;
1082 break;
1083 default:
1084 break;
1085 }
1087 if (bci.x < width) {
1088 trace_t++;
1089 if (!is_pixel_checked(trace_t) && !is_pixel_queued(trace_t)) {
1090 mark_pixel_checked(trace_t);
1091 bci.is_left = false;
1092 bci.x = x + 1;
1094 result = perform_bitmap_scanline_check(&fill_queue, px, trace_px, orig_color, bci, &min_x, &max_x);
1096 switch (result) {
1097 case SCANLINE_CHECK_ABORTED:
1098 aborted = true;
1099 break;
1100 case SCANLINE_CHECK_BOUNDARY:
1101 reached_screen_boundary = true;
1102 break;
1103 default:
1104 break;
1105 }
1106 }
1107 }
1108 }
1110 bci.current_step++;
1112 if (bci.current_step > bci.max_queue_size) {
1113 aborted = true;
1114 }
1115 }
1116 }
1118 g_free(px);
1120 if (aborted) {
1121 g_free(trace_px);
1122 desktop->messageStack()->flash(Inkscape::WARNING_MESSAGE, _("<b>Area is not bounded</b>, cannot fill."));
1123 return;
1124 }
1126 if (reached_screen_boundary) {
1127 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."));
1128 }
1130 unsigned int trace_padding = bci.radius + 1;
1131 if (min_y > trace_padding) { min_y -= trace_padding; }
1132 if (max_y < (y_limit - trace_padding)) { max_y += trace_padding; }
1133 if (min_x > trace_padding) { min_x -= trace_padding; }
1134 if (max_x < (width - 1 - trace_padding)) { max_x += trace_padding; }
1136 NR::Point min_start = NR::Point(min_x, min_y);
1138 affine = scale * NR::translate(-origin * scale - min_start);
1139 NR::Matrix inverted_affine = NR::Matrix(affine).inverse();
1141 do_trace(bci, trace_px, desktop, inverted_affine, min_x, max_x, min_y, max_y, union_with_selection);
1143 g_free(trace_px);
1145 sp_document_done(document, SP_VERB_CONTEXT_PAINTBUCKET, _("Fill bounded area"));
1146 }
1148 static gint sp_flood_context_item_handler(SPEventContext *event_context, SPItem *item, GdkEvent *event)
1149 {
1150 gint ret = FALSE;
1152 SPDesktop *desktop = event_context->desktop;
1154 switch (event->type) {
1155 case GDK_BUTTON_PRESS:
1156 if ((event->button.state & GDK_CONTROL_MASK) && event->button.button == 1 && !event_context->space_panning) {
1157 NR::Point const button_w(event->button.x,
1158 event->button.y);
1160 SPItem *item = sp_event_context_find_item (desktop, button_w, TRUE, TRUE);
1162 Inkscape::XML::Node *pathRepr = SP_OBJECT_REPR(item);
1163 /* Set style */
1164 sp_desktop_apply_style_tool (desktop, pathRepr, "tools.paintbucket", false);
1165 sp_document_done(sp_desktop_document(desktop), SP_VERB_CONTEXT_PAINTBUCKET, _("Set style on object"));
1166 ret = TRUE;
1167 }
1168 break;
1169 default:
1170 break;
1171 }
1173 if (((SPEventContextClass *) parent_class)->item_handler) {
1174 ret = ((SPEventContextClass *) parent_class)->item_handler(event_context, item, event);
1175 }
1177 return ret;
1178 }
1180 static gint sp_flood_context_root_handler(SPEventContext *event_context, GdkEvent *event)
1181 {
1182 static bool dragging;
1184 gint ret = FALSE;
1185 SPDesktop *desktop = event_context->desktop;
1187 switch (event->type) {
1188 case GDK_BUTTON_PRESS:
1189 if (event->button.button == 1 && !event_context->space_panning) {
1190 if (!(event->button.state & GDK_CONTROL_MASK)) {
1191 NR::Point const button_w(event->button.x,
1192 event->button.y);
1194 if (Inkscape::have_viable_layer(desktop, event_context->defaultMessageContext())) {
1195 // save drag origin
1196 event_context->xp = (gint) button_w[NR::X];
1197 event_context->yp = (gint) button_w[NR::Y];
1198 event_context->within_tolerance = true;
1200 dragging = true;
1202 NR::Point const p(desktop->w2d(button_w));
1203 Inkscape::Rubberband::get()->setMode(RUBBERBAND_MODE_TOUCHPATH);
1204 Inkscape::Rubberband::get()->start(desktop, p);
1205 }
1206 }
1207 }
1208 case GDK_MOTION_NOTIFY:
1209 if ( dragging
1210 && ( event->motion.state & GDK_BUTTON1_MASK ) && !event_context->space_panning)
1211 {
1212 if ( event_context->within_tolerance
1213 && ( abs( (gint) event->motion.x - event_context->xp ) < event_context->tolerance )
1214 && ( abs( (gint) event->motion.y - event_context->yp ) < event_context->tolerance ) ) {
1215 break; // do not drag if we're within tolerance from origin
1216 }
1218 event_context->within_tolerance = false;
1220 NR::Point const motion_pt(event->motion.x, event->motion.y);
1221 NR::Point const p(desktop->w2d(motion_pt));
1222 if (Inkscape::Rubberband::get()->is_started()) {
1223 Inkscape::Rubberband::get()->move(p);
1224 event_context->defaultMessageContext()->set(Inkscape::NORMAL_MESSAGE, _("<b>Draw over</b> areas to add to fill, hold <b>Alt</b> for touch fill"));
1225 gobble_motion_events(GDK_BUTTON1_MASK);
1226 }
1227 }
1228 break;
1230 case GDK_BUTTON_RELEASE:
1231 if (event->button.button == 1 && !event_context->space_panning) {
1232 Inkscape::Rubberband::Rubberband *r = Inkscape::Rubberband::get();
1233 if (r->is_started()) {
1234 // set "busy" cursor
1235 desktop->setWaitingCursor();
1237 if (SP_IS_EVENT_CONTEXT(event_context)) {
1238 // Since setWaitingCursor runs main loop iterations, we may have already left this tool!
1239 // So check if the tool is valid before doing anything
1240 dragging = false;
1242 bool is_point_fill = event_context->within_tolerance;
1243 bool is_touch_fill = event->button.state & GDK_MOD1_MASK;
1245 sp_flood_do_flood_fill(event_context, event, event->button.state & GDK_SHIFT_MASK, is_point_fill, is_touch_fill);
1247 desktop->clearWaitingCursor();
1248 // restore cursor when done; note that it may already be different if e.g. user
1249 // switched to another tool during interruptible tracing or drawing, in which case do nothing
1251 ret = TRUE;
1252 }
1254 r->stop();
1256 if (SP_IS_EVENT_CONTEXT(event_context)) {
1257 event_context->defaultMessageContext()->clear();
1258 }
1259 }
1260 }
1261 break;
1262 case GDK_KEY_PRESS:
1263 switch (get_group0_keyval (&event->key)) {
1264 case GDK_Up:
1265 case GDK_Down:
1266 case GDK_KP_Up:
1267 case GDK_KP_Down:
1268 // prevent the zoom field from activation
1269 if (!MOD__CTRL_ONLY)
1270 ret = TRUE;
1271 break;
1272 default:
1273 break;
1274 }
1275 break;
1276 default:
1277 break;
1278 }
1280 if (!ret) {
1281 if (((SPEventContextClass *) parent_class)->root_handler) {
1282 ret = ((SPEventContextClass *) parent_class)->root_handler(event_context, event);
1283 }
1284 }
1286 return ret;
1287 }
1290 static void sp_flood_finish(SPFloodContext *rc)
1291 {
1292 rc->_message_context->clear();
1294 if ( rc->item != NULL ) {
1295 SPDesktop * desktop;
1297 desktop = SP_EVENT_CONTEXT_DESKTOP(rc);
1299 SP_OBJECT(rc->item)->updateRepr();
1301 sp_canvas_end_forced_full_redraws(desktop->canvas);
1303 sp_desktop_selection(desktop)->set(rc->item);
1304 sp_document_done(sp_desktop_document(desktop), SP_VERB_CONTEXT_PAINTBUCKET,
1305 _("Fill bounded area"));
1307 rc->item = NULL;
1308 }
1309 }
1311 void flood_channels_set_channels( gint channels )
1312 {
1313 prefs_set_int_attribute("tools.paintbucket", "channels", channels);
1314 }
1316 /*
1317 Local Variables:
1318 mode:c++
1319 c-file-style:"stroustrup"
1320 c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
1321 indent-tabs-mode:nil
1322 fill-column:99
1323 End:
1324 */
1325 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=99 :