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 "sp-item.h"
59 #include "sp-root.h"
60 #include "sp-defs.h"
61 #include "sp-path.h"
62 #include "splivarot.h"
63 #include "livarot/Path.h"
64 #include "livarot/Shape.h"
65 #include "libnr/n-art-bpath.h"
66 #include "svg/svg.h"
67 #include "color.h"
69 #include "trace/trace.h"
70 #include "trace/imagemap.h"
71 #include "trace/potrace/inkscape-potrace.h"
73 static void sp_flood_context_class_init(SPFloodContextClass *klass);
74 static void sp_flood_context_init(SPFloodContext *flood_context);
75 static void sp_flood_context_dispose(GObject *object);
77 static void sp_flood_context_setup(SPEventContext *ec);
79 static gint sp_flood_context_root_handler(SPEventContext *event_context, GdkEvent *event);
80 static gint sp_flood_context_item_handler(SPEventContext *event_context, SPItem *item, GdkEvent *event);
82 static void sp_flood_finish(SPFloodContext *rc);
84 static SPEventContextClass *parent_class;
87 GtkType sp_flood_context_get_type()
88 {
89 static GType type = 0;
90 if (!type) {
91 GTypeInfo info = {
92 sizeof(SPFloodContextClass),
93 NULL, NULL,
94 (GClassInitFunc) sp_flood_context_class_init,
95 NULL, NULL,
96 sizeof(SPFloodContext),
97 4,
98 (GInstanceInitFunc) sp_flood_context_init,
99 NULL, /* value_table */
100 };
101 type = g_type_register_static(SP_TYPE_EVENT_CONTEXT, "SPFloodContext", &info, (GTypeFlags) 0);
102 }
103 return type;
104 }
106 static void sp_flood_context_class_init(SPFloodContextClass *klass)
107 {
108 GObjectClass *object_class = (GObjectClass *) klass;
109 SPEventContextClass *event_context_class = (SPEventContextClass *) klass;
111 parent_class = (SPEventContextClass *) g_type_class_peek_parent(klass);
113 object_class->dispose = sp_flood_context_dispose;
115 event_context_class->setup = sp_flood_context_setup;
116 event_context_class->root_handler = sp_flood_context_root_handler;
117 event_context_class->item_handler = sp_flood_context_item_handler;
118 }
120 static void sp_flood_context_init(SPFloodContext *flood_context)
121 {
122 SPEventContext *event_context = SP_EVENT_CONTEXT(flood_context);
124 event_context->cursor_shape = cursor_paintbucket_xpm;
125 event_context->hot_x = 11;
126 event_context->hot_y = 30;
127 event_context->xp = 0;
128 event_context->yp = 0;
129 event_context->tolerance = 4;
130 event_context->within_tolerance = false;
131 event_context->item_to_select = NULL;
133 event_context->shape_repr = NULL;
134 event_context->shape_knot_holder = NULL;
136 flood_context->item = NULL;
138 new (&flood_context->sel_changed_connection) sigc::connection();
139 }
141 static void sp_flood_context_dispose(GObject *object)
142 {
143 SPFloodContext *rc = SP_FLOOD_CONTEXT(object);
144 SPEventContext *ec = SP_EVENT_CONTEXT(object);
146 rc->sel_changed_connection.disconnect();
147 rc->sel_changed_connection.~connection();
149 /* fixme: This is necessary because we do not grab */
150 if (rc->item) {
151 sp_flood_finish(rc);
152 }
154 if (ec->shape_repr) { // remove old listener
155 sp_repr_remove_listener_by_data(ec->shape_repr, ec);
156 Inkscape::GC::release(ec->shape_repr);
157 ec->shape_repr = 0;
158 }
160 if (rc->_message_context) {
161 delete rc->_message_context;
162 }
164 G_OBJECT_CLASS(parent_class)->dispose(object);
165 }
167 static Inkscape::XML::NodeEventVector ec_shape_repr_events = {
168 NULL, /* child_added */
169 NULL, /* child_removed */
170 ec_shape_event_attr_changed,
171 NULL, /* content_changed */
172 NULL /* order_changed */
173 };
175 /**
176 \brief Callback that processes the "changed" signal on the selection;
177 destroys old and creates new knotholder
178 */
179 void sp_flood_context_selection_changed(Inkscape::Selection *selection, gpointer data)
180 {
181 SPFloodContext *rc = SP_FLOOD_CONTEXT(data);
182 SPEventContext *ec = SP_EVENT_CONTEXT(rc);
184 if (ec->shape_repr) { // remove old listener
185 sp_repr_remove_listener_by_data(ec->shape_repr, ec);
186 Inkscape::GC::release(ec->shape_repr);
187 ec->shape_repr = 0;
188 }
190 SPItem *item = selection->singleItem();
191 if (item) {
192 Inkscape::XML::Node *shape_repr = SP_OBJECT_REPR(item);
193 if (shape_repr) {
194 ec->shape_repr = shape_repr;
195 Inkscape::GC::anchor(shape_repr);
196 sp_repr_add_listener(shape_repr, &ec_shape_repr_events, ec);
197 }
198 }
199 }
201 static void sp_flood_context_setup(SPEventContext *ec)
202 {
203 SPFloodContext *rc = SP_FLOOD_CONTEXT(ec);
205 if (((SPEventContextClass *) parent_class)->setup) {
206 ((SPEventContextClass *) parent_class)->setup(ec);
207 }
209 SPItem *item = sp_desktop_selection(ec->desktop)->singleItem();
210 if (item) {
211 Inkscape::XML::Node *shape_repr = SP_OBJECT_REPR(item);
212 if (shape_repr) {
213 ec->shape_repr = shape_repr;
214 Inkscape::GC::anchor(shape_repr);
215 sp_repr_add_listener(shape_repr, &ec_shape_repr_events, ec);
216 }
217 }
219 rc->sel_changed_connection.disconnect();
220 rc->sel_changed_connection = sp_desktop_selection(ec->desktop)->connectChanged(
221 sigc::bind(sigc::ptr_fun(&sp_flood_context_selection_changed), (gpointer)rc)
222 );
224 rc->_message_context = new Inkscape::MessageContext((ec->desktop)->messageStack());
226 if (prefs_get_int_attribute("tools.paintbucket", "selcue", 0) != 0) {
227 rc->enableSelectionCue();
228 }
229 }
231 /**
232 * \brief Merge a pixel with the background color.
233 * \param orig The pixel to merge with the background.
234 * \param bg The background color.
235 * \param base The pixel to merge the original and background into.
236 */
237 inline static void
238 merge_pixel_with_background (unsigned char *orig, unsigned char *bg,
239 unsigned char *base)
240 {
241 int precalc_bg_alpha = (255 * (255 - bg[3])) / 255;
243 for (int i = 0; i < 3; i++) {
244 base[i] = precalc_bg_alpha + (bg[i] * bg[3]) / 255;
245 base[i] = (base[i] * (255 - orig[3])) / 255 + (orig[i] * orig[3]) / 255;
246 }
247 }
249 /**
250 * \brief Get the pointer to a pixel in a pixel buffer.
251 * \param px The pixel buffer.
252 * \param x The X coordinate.
253 * \param y The Y coordinate.
254 * \param width The width of the pixel buffer.
255 */
256 inline unsigned char * get_pixel(guchar *px, int x, int y, int width) {
257 return px + (x + y * width) * 4;
258 }
260 inline unsigned char * get_trace_pixel(guchar *trace_px, int x, int y, int width) {
261 return trace_px + (x + y * width);
262 }
264 /**
265 * \brief Generate the list of trace channel selection entries.
266 */
267 GList * flood_channels_dropdown_items_list() {
268 GList *glist = NULL;
270 glist = g_list_append (glist, _("Visible Colors"));
271 glist = g_list_append (glist, _("Red"));
272 glist = g_list_append (glist, _("Green"));
273 glist = g_list_append (glist, _("Blue"));
274 glist = g_list_append (glist, _("Hue"));
275 glist = g_list_append (glist, _("Saturation"));
276 glist = g_list_append (glist, _("Lightness"));
277 glist = g_list_append (glist, _("Alpha"));
279 return glist;
280 }
282 /**
283 * \brief Generate the list of autogap selection entries.
284 */
285 GList * flood_autogap_dropdown_items_list() {
286 GList *glist = NULL;
288 glist = g_list_append (glist, _("None"));
289 glist = g_list_append (glist, _("Small"));
290 glist = g_list_append (glist, _("Medium"));
291 glist = g_list_append (glist, _("Large"));
293 return glist;
294 }
296 /**
297 * \brief Compare a pixel in a pixel buffer with another pixel to determine if a point should be included in the fill operation.
298 * \param check The pixel in the pixel buffer to check.
299 * \param orig The original selected pixel to use as the fill target color.
300 * \param merged_orig_pixel The original pixel merged with the background.
301 * \param dtc The desktop background color.
302 * \param threshold The fill threshold.
303 * \param method The fill method to use as defined in PaintBucketChannels.
304 */
305 static bool compare_pixels(unsigned char *check, unsigned char *orig, unsigned char *merged_orig_pixel, unsigned char *dtc, int threshold, PaintBucketChannels method) {
306 int diff = 0;
307 float hsl_check[3], hsl_orig[3];
309 if ((method == FLOOD_CHANNELS_H) ||
310 (method == FLOOD_CHANNELS_S) ||
311 (method == FLOOD_CHANNELS_L)) {
312 sp_color_rgb_to_hsl_floatv(hsl_check, check[0] / 255.0, check[1] / 255.0, check[2] / 255.0);
313 sp_color_rgb_to_hsl_floatv(hsl_orig, orig[0] / 255.0, orig[1] / 255.0, orig[2] / 255.0);
314 }
316 switch (method) {
317 case FLOOD_CHANNELS_ALPHA:
318 return ((int)abs(check[3] - orig[3]) <= threshold);
319 case FLOOD_CHANNELS_R:
320 return ((int)abs(check[0] - orig[0]) <= threshold);
321 case FLOOD_CHANNELS_G:
322 return ((int)abs(check[1] - orig[1]) <= threshold);
323 case FLOOD_CHANNELS_B:
324 return ((int)abs(check[2] - orig[2]) <= threshold);
325 case FLOOD_CHANNELS_RGB:
326 unsigned char merged_check[3];
328 merge_pixel_with_background(check, dtc, merged_check);
330 for (int i = 0; i < 3; i++) {
331 diff += (int)abs(merged_check[i] - merged_orig_pixel[i]);
332 }
333 return ((diff / 3) <= ((threshold * 3) / 4));
335 case FLOOD_CHANNELS_H:
336 return ((int)(fabs(hsl_check[0] - hsl_orig[0]) * 100.0) <= threshold);
337 case FLOOD_CHANNELS_S:
338 return ((int)(fabs(hsl_check[1] - hsl_orig[1]) * 100.0) <= threshold);
339 case FLOOD_CHANNELS_L:
340 return ((int)(fabs(hsl_check[2] - hsl_orig[2]) * 100.0) <= threshold);
341 }
343 return false;
344 }
346 enum {
347 PIXEL_CHECKED = 1,
348 PIXEL_QUEUED = 2,
349 PIXEL_PAINTABLE = 4,
350 PIXEL_NOT_PAINTABLE = 8,
351 PIXEL_COLORED = 16
352 };
354 static inline bool is_pixel_checked(unsigned char *t) { return (*t & PIXEL_CHECKED) == PIXEL_CHECKED; }
355 static inline bool is_pixel_queued(unsigned char *t) { return (*t & PIXEL_QUEUED) == PIXEL_QUEUED; }
356 static inline bool is_pixel_paintability_checked(unsigned char *t) {
357 return !((*t & PIXEL_PAINTABLE) == 0) && ((*t & PIXEL_NOT_PAINTABLE) == 0);
358 }
359 static inline bool is_pixel_paintable(unsigned char *t) { return (*t & PIXEL_PAINTABLE) == PIXEL_PAINTABLE; }
360 static inline bool is_pixel_colored(unsigned char *t) { return (*t & PIXEL_COLORED) == PIXEL_COLORED; }
362 static inline void mark_pixel_checked(unsigned char *t) { *t |= PIXEL_CHECKED; }
363 static inline void mark_pixel_unchecked(unsigned char *t) { *t ^= PIXEL_CHECKED; }
364 static inline void mark_pixel_queued(unsigned char *t) { *t |= PIXEL_QUEUED; }
365 static inline void mark_pixel_paintable(unsigned char *t) { *t |= PIXEL_PAINTABLE; *t ^= PIXEL_NOT_PAINTABLE; }
366 static inline void mark_pixel_not_paintable(unsigned char *t) { *t |= PIXEL_NOT_PAINTABLE; *t ^= PIXEL_PAINTABLE; }
367 static inline void mark_pixel_colored(unsigned char *t) { *t |= PIXEL_COLORED; }
369 static inline void clear_pixel_paintability(unsigned char *t) { *t ^= PIXEL_PAINTABLE; *t ^= PIXEL_NOT_PAINTABLE; }
371 struct bitmap_coords_info {
372 bool is_left;
373 unsigned int x;
374 unsigned int y;
375 int y_limit;
376 unsigned int width;
377 unsigned int height;
378 unsigned int threshold;
379 unsigned int radius;
380 PaintBucketChannels method;
381 unsigned char *dtc;
382 unsigned char *merged_orig_pixel;
383 NR::Rect bbox;
384 NR::Rect screen;
385 unsigned int max_queue_size;
386 unsigned int current_step;
387 };
389 /**
390 * \brief Check if a pixel can be included in the fill.
391 * \param px The rendered pixel buffer to check.
392 * \param trace_t The pixel in the trace pixel buffer to check or mark.
393 * \param x The X coordinate.
394 * \param y The y coordinate.
395 * \param orig_color The original selected pixel to use as the fill target color.
396 * \param bci The bitmap_coords_info structure.
397 */
398 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) {
399 if (is_pixel_paintability_checked(trace_t)) {
400 return is_pixel_paintable(trace_t);
401 } else {
402 unsigned char *t = get_pixel(px, x, y, bci.width);
403 if (compare_pixels(t, orig_color, bci.merged_orig_pixel, bci.dtc, bci.threshold, bci.method)) {
404 mark_pixel_paintable(trace_t);
405 return true;
406 } else {
407 mark_pixel_not_paintable(trace_t);
408 return false;
409 }
410 }
411 }
413 /**
414 * \brief Perform the bitmap-to-vector tracing and place the traced path onto the document.
415 * \param px The trace pixel buffer to trace to SVG.
416 * \param desktop The desktop on which to place the final SVG path.
417 * \param transform The transform to apply to the final SVG path.
418 * \param union_with_selection If true, merge the final SVG path with the current selection.
419 */
420 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) {
421 SPDocument *document = sp_desktop_document(desktop);
423 unsigned char *trace_t;
425 GrayMap *gray_map = GrayMapCreate((max_x - min_x + 1), (max_y - min_y + 1));
426 unsigned int gray_map_y = 0;
427 for (unsigned int y = min_y; y <= max_y; y++) {
428 unsigned long *gray_map_t = gray_map->rows[gray_map_y];
430 trace_t = get_trace_pixel(trace_px, min_x, y, bci.width);
431 for (unsigned int x = min_x; x <= max_x; x++) {
432 *gray_map_t = is_pixel_colored(trace_t) ? GRAYMAP_BLACK : GRAYMAP_WHITE;
433 gray_map_t++;
434 trace_t++;
435 }
436 gray_map_y++;
437 }
439 Inkscape::Trace::Potrace::PotraceTracingEngine pte;
440 std::vector<Inkscape::Trace::TracingEngineResult> results = pte.traceGrayMap(gray_map);
441 gray_map->destroy(gray_map);
443 Inkscape::XML::Node *layer_repr = SP_GROUP(desktop->currentLayer())->repr;
444 Inkscape::XML::Document *xml_doc = sp_document_repr_doc(desktop->doc());
446 long totalNodeCount = 0L;
448 double offset = prefs_get_double_attribute("tools.paintbucket", "offset", 0.0);
450 for (unsigned int i=0 ; i<results.size() ; i++) {
451 Inkscape::Trace::TracingEngineResult result = results[i];
452 totalNodeCount += result.getNodeCount();
454 Inkscape::XML::Node *pathRepr = xml_doc->createElement("svg:path");
455 /* Set style */
456 sp_desktop_apply_style_tool (desktop, pathRepr, "tools.paintbucket", false);
458 NArtBpath *bpath = sp_svg_read_path(result.getPathData().c_str());
459 Path *path = bpath_to_Path(bpath);
460 g_free(bpath);
462 if (offset != 0) {
464 Shape *path_shape = new Shape();
466 path->ConvertWithBackData(0.03);
467 path->Fill(path_shape, 0);
468 delete path;
470 Shape *expanded_path_shape = new Shape();
472 expanded_path_shape->ConvertToShape(path_shape, fill_nonZero);
473 path_shape->MakeOffset(expanded_path_shape, offset * desktop->current_zoom(), join_round, 4);
474 expanded_path_shape->ConvertToShape(path_shape, fill_positive);
476 Path *expanded_path = new Path();
478 expanded_path->Reset();
479 expanded_path_shape->ConvertToForme(expanded_path);
480 expanded_path->ConvertEvenLines(1.0);
481 expanded_path->Simplify(1.0);
483 delete path_shape;
484 delete expanded_path_shape;
486 gchar *str = expanded_path->svg_dump_path();
487 if (str && *str) {
488 pathRepr->setAttribute("d", str);
489 g_free(str);
490 } else {
491 desktop->messageStack()->flash(Inkscape::WARNING_MESSAGE, _("<b>Too much inset</b>, the result is empty."));
492 Inkscape::GC::release(pathRepr);
493 g_free(str);
494 return;
495 }
497 delete expanded_path;
499 } else {
500 gchar *str = path->svg_dump_path();
501 delete path;
502 pathRepr->setAttribute("d", str);
503 g_free(str);
504 }
506 layer_repr->addChild(pathRepr, NULL);
508 SPObject *reprobj = document->getObjectByRepr(pathRepr);
509 if (reprobj) {
510 sp_item_write_transform(SP_ITEM(reprobj), pathRepr, transform, NULL);
512 // premultiply the item transform by the accumulated parent transform in the paste layer
513 NR::Matrix local = sp_item_i2doc_affine(SP_GROUP(desktop->currentLayer()));
514 if (!local.test_identity()) {
515 gchar const *t_str = pathRepr->attribute("transform");
516 NR::Matrix item_t (NR::identity());
517 if (t_str)
518 sp_svg_transform_read(t_str, &item_t);
519 item_t *= local.inverse();
520 // (we're dealing with unattached repr, so we write to its attr instead of using sp_item_set_transform)
521 gchar *affinestr=sp_svg_transform_write(item_t);
522 pathRepr->setAttribute("transform", affinestr);
523 g_free(affinestr);
524 }
526 Inkscape::Selection *selection = sp_desktop_selection(desktop);
528 pathRepr->setPosition(-1);
530 if (union_with_selection) {
531 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)));
532 selection->add(reprobj);
533 sp_selected_path_union_skip_undo();
534 } else {
535 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)));
536 selection->set(reprobj);
537 }
539 }
541 Inkscape::GC::release(pathRepr);
543 }
544 }
546 /**
547 * \brief The possible return states of perform_bitmap_scanline_check()
548 */
549 enum ScanlineCheckResult {
550 SCANLINE_CHECK_OK,
551 SCANLINE_CHECK_ABORTED,
552 SCANLINE_CHECK_BOUNDARY
553 };
555 /**
556 * \brief Determine if the provided coordinates are within the pixel buffer limits.
557 * \param x The X coordinate.
558 * \param y The Y coordinate.
559 * \param bci The bitmap_coords_info structure.
560 */
561 inline static bool coords_in_range(unsigned int x, unsigned int y, bitmap_coords_info bci) {
562 return (x < bci.width) &&
563 (y < bci.height);
564 }
566 #define PAINT_DIRECTION_LEFT 1
567 #define PAINT_DIRECTION_RIGHT 2
568 #define PAINT_DIRECTION_UP 4
569 #define PAINT_DIRECTION_DOWN 8
570 #define PAINT_DIRECTION_ALL 15
572 /**
573 * \brief Paint a pixel or a square (if autogap is enabled) on the trace pixel buffer
574 * \param px The rendered pixel buffer to check.
575 * \param trace_px The trace pixel buffer.
576 * \param orig_color The original selected pixel to use as the fill target color.
577 * \param bci The bitmap_coords_info structure.
578 * \param original_point_trace_t The original pixel in the trace pixel buffer to check.
579 */
580 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) {
581 if (bci.radius == 0) {
582 mark_pixel_colored(original_point_trace_t);
583 return PAINT_DIRECTION_ALL;
584 } else {
585 unsigned char *trace_t;
587 bool can_paint_up = true;
588 bool can_paint_down = true;
589 bool can_paint_left = true;
590 bool can_paint_right = true;
592 for (unsigned int ty = bci.y - bci.radius; ty <= bci.y + bci.radius; ty++) {
593 for (unsigned int tx = bci.x - bci.radius; tx <= bci.x + bci.radius; tx++) {
594 if (coords_in_range(tx, ty, bci)) {
595 trace_t = get_trace_pixel(trace_px, tx, ty, bci.width);
596 if (!is_pixel_colored(trace_t)) {
597 if (check_if_pixel_is_paintable(px, trace_t, tx, ty, orig_color, bci)) {
598 mark_pixel_colored(trace_t);
599 } else {
600 if (tx < bci.x) { can_paint_left = false; }
601 if (tx > bci.x) { can_paint_right = false; }
602 if (ty < bci.y) { can_paint_up = false; }
603 if (ty > bci.y) { can_paint_down = false; }
604 }
605 }
606 }
607 }
608 }
610 unsigned int paint_directions = 0;
611 if (can_paint_left) { paint_directions += PAINT_DIRECTION_LEFT; }
612 if (can_paint_right) { paint_directions += PAINT_DIRECTION_RIGHT; }
613 if (can_paint_up) { paint_directions += PAINT_DIRECTION_UP; }
614 if (can_paint_down) { paint_directions += PAINT_DIRECTION_DOWN; }
616 return paint_directions;
617 }
618 }
620 /**
621 * \brief Push a point to be checked onto the bottom of the rendered pixel buffer check queue.
622 * \param fill_queue The fill queue to add the point to.
623 * \param max_queue_size The maximum size of the fill queue.
624 * \param trace_t The trace pixel buffer pixel.
625 * \param x The X coordinate.
626 * \param y The Y coordinate.
627 */
628 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) {
629 if (!is_pixel_queued(trace_t)) {
630 if ((fill_queue->size() < max_queue_size)) {
631 fill_queue->push_back(NR::Point(x, y));
632 mark_pixel_queued(trace_t);
633 }
634 }
635 }
637 /**
638 * \brief Shift a point to be checked onto the top of the rendered pixel buffer check queue.
639 * \param fill_queue The fill queue to add the point to.
640 * \param max_queue_size The maximum size of the fill queue.
641 * \param trace_t The trace pixel buffer pixel.
642 * \param x The X coordinate.
643 * \param y The Y coordinate.
644 */
645 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) {
646 if (!is_pixel_queued(trace_t)) {
647 if ((fill_queue->size() < max_queue_size)) {
648 fill_queue->push_front(NR::Point(x, y));
649 mark_pixel_queued(trace_t);
650 }
651 }
652 }
654 /**
655 * \brief Scan a row in the rendered pixel buffer and add points to the fill queue as necessary.
656 * \param fill_queue The fill queue to add the point to.
657 * \param px The rendered pixel buffer.
658 * \param trace_px The trace pixel buffer.
659 * \param orig_color The original selected pixel to use as the fill target color.
660 * \param bci The bitmap_coords_info structure.
661 */
662 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) {
663 bool aborted = false;
664 bool reached_screen_boundary = false;
665 bool ok;
667 bool keep_tracing;
668 bool initial_paint = true;
670 unsigned char *current_trace_t = get_trace_pixel(trace_px, bci.x, bci.y, bci.width);
671 unsigned int paint_directions;
673 bool currently_painting_top = false;
674 bool currently_painting_bottom = false;
676 unsigned int top_ty = bci.y - 1;
677 unsigned int bottom_ty = bci.y + 1;
679 bool can_paint_top = (top_ty > 0);
680 bool can_paint_bottom = (bottom_ty < bci.height);
682 NR::Point t = fill_queue->front();
684 do {
685 ok = false;
686 if (bci.is_left) {
687 keep_tracing = (bci.x != 0);
688 } else {
689 keep_tracing = (bci.x < bci.width);
690 }
692 *min_x = MIN(*min_x, bci.x);
693 *max_x = MAX(*max_x, bci.x);
695 if (keep_tracing) {
696 if (check_if_pixel_is_paintable(px, current_trace_t, bci.x, bci.y, orig_color, bci)) {
697 paint_directions = paint_pixel(px, trace_px, orig_color, bci, current_trace_t);
698 if (bci.radius == 0) {
699 mark_pixel_checked(current_trace_t);
700 if ((t[NR::X] == bci.x) && (t[NR::Y] == bci.y)) {
701 fill_queue->pop_front(); t = fill_queue->front();
702 }
703 }
705 if (can_paint_top) {
706 if (paint_directions & PAINT_DIRECTION_UP) {
707 unsigned char *trace_t = current_trace_t - bci.width;
708 if (!is_pixel_queued(trace_t)) {
709 bool ok_to_paint = check_if_pixel_is_paintable(px, trace_t, bci.x, top_ty, orig_color, bci);
711 if (initial_paint) { currently_painting_top = !ok_to_paint; }
713 if (ok_to_paint && (!currently_painting_top)) {
714 currently_painting_top = true;
715 push_point_onto_queue(fill_queue, bci.max_queue_size, trace_t, bci.x, top_ty);
716 }
717 if ((!ok_to_paint) && currently_painting_top) {
718 currently_painting_top = false;
719 }
720 }
721 }
722 }
724 if (can_paint_bottom) {
725 if (paint_directions & PAINT_DIRECTION_DOWN) {
726 unsigned char *trace_t = current_trace_t + bci.width;
727 if (!is_pixel_queued(trace_t)) {
728 bool ok_to_paint = check_if_pixel_is_paintable(px, trace_t, bci.x, bottom_ty, orig_color, bci);
730 if (initial_paint) { currently_painting_bottom = !ok_to_paint; }
732 if (ok_to_paint && (!currently_painting_bottom)) {
733 currently_painting_bottom = true;
734 push_point_onto_queue(fill_queue, bci.max_queue_size, trace_t, bci.x, bottom_ty);
735 }
736 if ((!ok_to_paint) && currently_painting_bottom) {
737 currently_painting_bottom = false;
738 }
739 }
740 }
741 }
743 if (bci.is_left) {
744 if (paint_directions & PAINT_DIRECTION_LEFT) {
745 bci.x--; current_trace_t--;
746 ok = true;
747 }
748 } else {
749 if (paint_directions & PAINT_DIRECTION_RIGHT) {
750 bci.x++; current_trace_t++;
751 ok = true;
752 }
753 }
755 initial_paint = false;
756 }
757 } else {
758 if (bci.bbox.min()[NR::X] > bci.screen.min()[NR::X]) {
759 aborted = true; break;
760 } else {
761 reached_screen_boundary = true;
762 }
763 }
764 } while (ok);
766 if (aborted) { return SCANLINE_CHECK_ABORTED; }
767 if (reached_screen_boundary) { return SCANLINE_CHECK_BOUNDARY; }
768 return SCANLINE_CHECK_OK;
769 }
771 /**
772 * \brief Sort the rendered pixel buffer check queue vertically.
773 */
774 static bool sort_fill_queue_vertical(NR::Point a, NR::Point b) {
775 return a[NR::Y] > b[NR::Y];
776 }
778 /**
779 * \brief Sort the rendered pixel buffer check queue horizontally.
780 */
781 static bool sort_fill_queue_horizontal(NR::Point a, NR::Point b) {
782 return a[NR::X] > b[NR::X];
783 }
785 /**
786 * \brief Perform a flood fill operation.
787 * \param event_context The event context for this tool.
788 * \param event The details of this event.
789 * \param union_with_selection If true, union the new fill with the current selection.
790 * \param is_point_fill If false, use the Rubberband "touch selection" to get the initial points for the fill.
791 * \param is_touch_fill If true, use only the initial contact point in the Rubberband "touch selection" as the fill target color.
792 */
793 static void sp_flood_do_flood_fill(SPEventContext *event_context, GdkEvent *event, bool union_with_selection, bool is_point_fill, bool is_touch_fill) {
794 SPDesktop *desktop = event_context->desktop;
795 SPDocument *document = sp_desktop_document(desktop);
797 /* Create new arena */
798 NRArena *arena = NRArena::create();
799 unsigned dkey = sp_item_display_key_new(1);
801 sp_document_ensure_up_to_date (document);
803 SPItem *document_root = SP_ITEM(SP_DOCUMENT_ROOT(document));
804 NR::Maybe<NR::Rect> bbox = document_root->getBounds(NR::identity());
806 if (!bbox) {
807 desktop->messageStack()->flash(Inkscape::WARNING_MESSAGE, _("<b>Area is not bounded</b>, cannot fill."));
808 return;
809 }
811 double zoom_scale = desktop->current_zoom();
813 // Render 160% of the physical display to the render pixel buffer, so that available
814 // fill areas off the screen can be included in the fill.
815 double padding = 1.6;
817 NR::Rect screen = desktop->get_display_area();
819 unsigned int width = (int)ceil(screen.extent(NR::X) * zoom_scale * padding);
820 unsigned int height = (int)ceil(screen.extent(NR::Y) * zoom_scale * padding);
822 NR::Point origin(screen.min()[NR::X],
823 sp_document_height(document) - screen.extent(NR::Y) - screen.min()[NR::Y]);
825 origin[NR::X] = origin[NR::X] + (screen.extent(NR::X) * ((1 - padding) / 2));
826 origin[NR::Y] = origin[NR::Y] + (screen.extent(NR::Y) * ((1 - padding) / 2));
828 NR::scale scale(zoom_scale, zoom_scale);
829 NR::Matrix affine = scale * NR::translate(-origin * scale);
831 /* Create ArenaItems and set transform */
832 NRArenaItem *root = sp_item_invoke_show(SP_ITEM(sp_document_root(document)), arena, dkey, SP_ITEM_SHOW_DISPLAY);
833 nr_arena_item_set_transform(NR_ARENA_ITEM(root), affine);
835 NRGC gc(NULL);
836 gc.transform.set_identity();
838 NRRectL final_bbox;
839 final_bbox.x0 = 0;
840 final_bbox.y0 = 0; //row;
841 final_bbox.x1 = width;
842 final_bbox.y1 = height; //row + num_rows;
844 nr_arena_item_invoke_update(root, &final_bbox, &gc, NR_ARENA_ITEM_STATE_ALL, NR_ARENA_ITEM_STATE_NONE);
846 guchar *px = g_new(guchar, 4 * width * height);
848 NRPixBlock B;
849 nr_pixblock_setup_extern( &B, NR_PIXBLOCK_MODE_R8G8B8A8N,
850 final_bbox.x0, final_bbox.y0, final_bbox.x1, final_bbox.y1,
851 px, 4 * width, FALSE, FALSE );
853 SPNamedView *nv = sp_desktop_namedview(desktop);
854 unsigned long bgcolor = nv->pagecolor;
856 unsigned char dtc[4];
857 dtc[0] = NR_RGBA32_R(bgcolor);
858 dtc[1] = NR_RGBA32_G(bgcolor);
859 dtc[2] = NR_RGBA32_B(bgcolor);
860 dtc[3] = NR_RGBA32_A(bgcolor);
862 for (unsigned int fy = 0; fy < height; fy++) {
863 guchar *p = NR_PIXBLOCK_PX(&B) + fy * B.rs;
864 for (unsigned int fx = 0; fx < width; fx++) {
865 for (int i = 0; i < 4; i++) {
866 *p++ = dtc[i];
867 }
868 }
869 }
871 nr_arena_item_invoke_render(NULL, root, &final_bbox, &B, NR_ARENA_ITEM_RENDER_NO_CACHE );
872 nr_pixblock_release(&B);
874 // Hide items
875 sp_item_invoke_hide(SP_ITEM(sp_document_root(document)), dkey);
877 nr_arena_item_unref(root);
878 nr_object_unref((NRObject *) arena);
880 guchar *trace_px = g_new(guchar, width * height);
881 memset(trace_px, 0x00, width * height);
883 std::deque<NR::Point> fill_queue;
884 std::queue<NR::Point> color_queue;
886 std::vector<NR::Point> fill_points;
888 bool aborted = false;
889 int y_limit = height - 1;
891 PaintBucketChannels method = (PaintBucketChannels)prefs_get_int_attribute("tools.paintbucket", "channels", 0);
892 int threshold = prefs_get_int_attribute_limited("tools.paintbucket", "threshold", 1, 0, 100);
894 switch(method) {
895 case FLOOD_CHANNELS_ALPHA:
896 case FLOOD_CHANNELS_RGB:
897 case FLOOD_CHANNELS_R:
898 case FLOOD_CHANNELS_G:
899 case FLOOD_CHANNELS_B:
900 threshold = (255 * threshold) / 100;
901 break;
902 case FLOOD_CHANNELS_H:
903 case FLOOD_CHANNELS_S:
904 case FLOOD_CHANNELS_L:
905 break;
906 }
908 bitmap_coords_info bci;
910 bci.y_limit = y_limit;
911 bci.width = width;
912 bci.height = height;
913 bci.threshold = threshold;
914 bci.method = method;
915 bci.bbox = *bbox;
916 bci.screen = screen;
917 bci.dtc = dtc;
918 bci.radius = prefs_get_int_attribute_limited("tools.paintbucket", "autogap", 0, 0, 3);
919 bci.max_queue_size = (width * height) / 4;
920 bci.current_step = 0;
922 if (is_point_fill) {
923 fill_points.push_back(NR::Point(event->button.x, event->button.y));
924 } else {
925 Inkscape::Rubberband::Rubberband *r = Inkscape::Rubberband::get();
926 fill_points = r->getPoints();
927 }
929 for (unsigned int i = 0; i < fill_points.size(); i++) {
930 NR::Point pw = NR::Point(fill_points[i][NR::X] / zoom_scale, sp_document_height(document) + (fill_points[i][NR::Y] / zoom_scale)) * affine;
932 pw[NR::X] = (int)MIN(width - 1, MAX(0, pw[NR::X]));
933 pw[NR::Y] = (int)MIN(height - 1, MAX(0, pw[NR::Y]));
935 if (is_touch_fill) {
936 if (i == 0) {
937 color_queue.push(pw);
938 } else {
939 unsigned char *trace_t = get_trace_pixel(trace_px, (int)pw[NR::X], (int)pw[NR::Y], width);
940 push_point_onto_queue(&fill_queue, bci.max_queue_size, trace_t, (int)pw[NR::X], (int)pw[NR::Y]);
941 }
942 } else {
943 color_queue.push(pw);
944 }
945 }
947 bool reached_screen_boundary = false;
949 bool first_run = true;
951 unsigned long sort_size_threshold = 5;
953 unsigned int min_y = height;
954 unsigned int max_y = 0;
955 unsigned int min_x = width;
956 unsigned int max_x = 0;
958 while (!color_queue.empty() && !aborted) {
959 NR::Point color_point = color_queue.front();
960 color_queue.pop();
962 int cx = (int)color_point[NR::X];
963 int cy = (int)color_point[NR::Y];
965 unsigned char *orig_px = get_pixel(px, cx, cy, width);
966 unsigned char orig_color[4];
967 for (int i = 0; i < 4; i++) { orig_color[i] = orig_px[i]; }
969 unsigned char merged_orig[3];
971 merge_pixel_with_background(orig_color, dtc, merged_orig);
973 bci.merged_orig_pixel = merged_orig;
975 unsigned char *trace_t = get_trace_pixel(trace_px, cx, cy, width);
976 if (!is_pixel_checked(trace_t) && !is_pixel_colored(trace_t)) {
977 if (check_if_pixel_is_paintable(px, trace_px, cx, cy, orig_color, bci)) {
978 shift_point_onto_queue(&fill_queue, bci.max_queue_size, trace_t, cx, cy);
980 if (!first_run) {
981 for (unsigned int y = 0; y < height; y++) {
982 trace_t = get_trace_pixel(trace_px, 0, y, width);
983 for (unsigned int x = 0; x < width; x++) {
984 clear_pixel_paintability(trace_t);
985 trace_t++;
986 }
987 }
988 }
989 first_run = false;
990 }
991 }
993 unsigned long old_fill_queue_size = fill_queue.size();
995 while (!fill_queue.empty() && !aborted) {
996 NR::Point cp = fill_queue.front();
998 if (bci.radius == 0) {
999 unsigned long new_fill_queue_size = fill_queue.size();
1001 /*
1002 * To reduce the number of points in the fill queue, periodically
1003 * resort all of the points in the queue so that scanline checks
1004 * can complete more quickly. A point cannot be checked twice
1005 * in a normal scanline checks, so forcing scanline checks to start
1006 * from one corner of the rendered area as often as possible
1007 * will reduce the number of points that need to be checked and queued.
1008 */
1009 if (new_fill_queue_size > sort_size_threshold) {
1010 if (new_fill_queue_size > old_fill_queue_size) {
1011 std::sort(fill_queue.begin(), fill_queue.end(), sort_fill_queue_vertical);
1013 std::deque<NR::Point>::iterator start_sort = fill_queue.begin();
1014 std::deque<NR::Point>::iterator end_sort = fill_queue.begin();
1015 unsigned int sort_y = (unsigned int)cp[NR::Y];
1016 unsigned int current_y = sort_y;
1018 for (std::deque<NR::Point>::iterator i = fill_queue.begin(); i != fill_queue.end(); i++) {
1019 NR::Point current = *i;
1020 current_y = (unsigned int)current[NR::Y];
1021 if (current_y != sort_y) {
1022 if (start_sort != end_sort) {
1023 std::sort(start_sort, end_sort, sort_fill_queue_horizontal);
1024 }
1025 sort_y = current_y;
1026 start_sort = i;
1027 }
1028 end_sort = i;
1029 }
1030 if (start_sort != end_sort) {
1031 std::sort(start_sort, end_sort, sort_fill_queue_horizontal);
1032 }
1034 cp = fill_queue.front();
1035 }
1036 }
1038 old_fill_queue_size = new_fill_queue_size;
1039 }
1041 fill_queue.pop_front();
1043 int x = (int)cp[NR::X];
1044 int y = (int)cp[NR::Y];
1046 min_y = MIN((unsigned int)y, min_y);
1047 max_y = MAX((unsigned int)y, max_y);
1049 unsigned char *trace_t = get_trace_pixel(trace_px, x, y, width);
1050 if (!is_pixel_checked(trace_t)) {
1051 mark_pixel_checked(trace_t);
1053 if (y == 0) {
1054 if (bbox->min()[NR::Y] > screen.min()[NR::Y]) {
1055 aborted = true; break;
1056 } else {
1057 reached_screen_boundary = true;
1058 }
1059 }
1061 if (y == y_limit) {
1062 if (bbox->max()[NR::Y] < screen.max()[NR::Y]) {
1063 aborted = true; break;
1064 } else {
1065 reached_screen_boundary = true;
1066 }
1067 }
1069 bci.is_left = true;
1070 bci.x = x;
1071 bci.y = y;
1073 ScanlineCheckResult 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 }
1086 if (bci.x < width) {
1087 trace_t++;
1088 if (!is_pixel_checked(trace_t) && !is_pixel_queued(trace_t)) {
1089 mark_pixel_checked(trace_t);
1090 bci.is_left = false;
1091 bci.x = x + 1;
1093 result = perform_bitmap_scanline_check(&fill_queue, px, trace_px, orig_color, bci, &min_x, &max_x);
1095 switch (result) {
1096 case SCANLINE_CHECK_ABORTED:
1097 aborted = true;
1098 break;
1099 case SCANLINE_CHECK_BOUNDARY:
1100 reached_screen_boundary = true;
1101 break;
1102 default:
1103 break;
1104 }
1105 }
1106 }
1107 }
1109 bci.current_step++;
1111 if (bci.current_step > bci.max_queue_size) {
1112 aborted = true;
1113 }
1114 }
1115 }
1117 g_free(px);
1119 if (aborted) {
1120 g_free(trace_px);
1121 desktop->messageStack()->flash(Inkscape::WARNING_MESSAGE, _("<b>Area is not bounded</b>, cannot fill."));
1122 return;
1123 }
1125 if (reached_screen_boundary) {
1126 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."));
1127 }
1129 unsigned int trace_padding = bci.radius + 1;
1130 if (min_y > trace_padding) { min_y -= trace_padding; }
1131 if (max_y < (y_limit - trace_padding)) { max_y += trace_padding; }
1132 if (min_x > trace_padding) { min_x -= trace_padding; }
1133 if (max_x < (width - 1 - trace_padding)) { max_x += trace_padding; }
1135 NR::Point min_start = NR::Point(min_x, min_y);
1137 affine = scale * NR::translate(-origin * scale - min_start);
1138 NR::Matrix inverted_affine = NR::Matrix(affine).inverse();
1140 do_trace(bci, trace_px, desktop, inverted_affine, min_x, max_x, min_y, max_y, union_with_selection);
1142 g_free(trace_px);
1144 sp_document_done(document, SP_VERB_CONTEXT_PAINTBUCKET, _("Fill bounded area"));
1145 }
1147 static gint sp_flood_context_item_handler(SPEventContext *event_context, SPItem *item, GdkEvent *event)
1148 {
1149 gint ret = FALSE;
1151 SPDesktop *desktop = event_context->desktop;
1153 switch (event->type) {
1154 case GDK_BUTTON_PRESS:
1155 if ((event->button.state & GDK_CONTROL_MASK) && event->button.button == 1 && !event_context->space_panning) {
1156 NR::Point const button_w(event->button.x,
1157 event->button.y);
1159 SPItem *item = sp_event_context_find_item (desktop, button_w, TRUE, TRUE);
1161 Inkscape::XML::Node *pathRepr = SP_OBJECT_REPR(item);
1162 /* Set style */
1163 sp_desktop_apply_style_tool (desktop, pathRepr, "tools.paintbucket", false);
1164 sp_document_done(sp_desktop_document(desktop), SP_VERB_CONTEXT_PAINTBUCKET, _("Set style on object"));
1165 ret = TRUE;
1166 }
1167 break;
1168 default:
1169 break;
1170 }
1172 if (((SPEventContextClass *) parent_class)->item_handler) {
1173 ret = ((SPEventContextClass *) parent_class)->item_handler(event_context, item, event);
1174 }
1176 return ret;
1177 }
1179 static gint sp_flood_context_root_handler(SPEventContext *event_context, GdkEvent *event)
1180 {
1181 static bool dragging;
1183 gint ret = FALSE;
1184 SPDesktop *desktop = event_context->desktop;
1186 switch (event->type) {
1187 case GDK_BUTTON_PRESS:
1188 if (event->button.button == 1 && !event_context->space_panning) {
1189 if (!(event->button.state & GDK_CONTROL_MASK)) {
1190 NR::Point const button_w(event->button.x,
1191 event->button.y);
1193 if (Inkscape::have_viable_layer(desktop, event_context->defaultMessageContext())) {
1194 // save drag origin
1195 event_context->xp = (gint) button_w[NR::X];
1196 event_context->yp = (gint) button_w[NR::Y];
1197 event_context->within_tolerance = true;
1199 dragging = true;
1201 NR::Point const p(desktop->w2d(button_w));
1202 Inkscape::Rubberband::get()->setMode(RUBBERBAND_MODE_TOUCHPATH);
1203 Inkscape::Rubberband::get()->start(desktop, p);
1204 }
1205 }
1206 }
1207 case GDK_MOTION_NOTIFY:
1208 if ( dragging
1209 && ( event->motion.state & GDK_BUTTON1_MASK ) && !event_context->space_panning)
1210 {
1211 if ( event_context->within_tolerance
1212 && ( abs( (gint) event->motion.x - event_context->xp ) < event_context->tolerance )
1213 && ( abs( (gint) event->motion.y - event_context->yp ) < event_context->tolerance ) ) {
1214 break; // do not drag if we're within tolerance from origin
1215 }
1217 event_context->within_tolerance = false;
1219 NR::Point const motion_pt(event->motion.x, event->motion.y);
1220 NR::Point const p(desktop->w2d(motion_pt));
1221 if (Inkscape::Rubberband::get()->is_started()) {
1222 Inkscape::Rubberband::get()->move(p);
1223 event_context->defaultMessageContext()->set(Inkscape::NORMAL_MESSAGE, _("<b>Draw over</b> areas to add to fill, hold <b>Alt</b> for touch fill"));
1224 gobble_motion_events(GDK_BUTTON1_MASK);
1225 }
1226 }
1227 break;
1229 case GDK_BUTTON_RELEASE:
1230 if (event->button.button == 1 && !event_context->space_panning) {
1231 Inkscape::Rubberband::Rubberband *r = Inkscape::Rubberband::get();
1232 if (r->is_started()) {
1233 // set "busy" cursor
1234 desktop->setWaitingCursor();
1236 if (SP_IS_EVENT_CONTEXT(event_context)) {
1237 // Since setWaitingCursor runs main loop iterations, we may have already left this tool!
1238 // So check if the tool is valid before doing anything
1239 dragging = false;
1241 bool is_point_fill = event_context->within_tolerance;
1242 bool is_touch_fill = event->button.state & GDK_MOD1_MASK;
1244 sp_flood_do_flood_fill(event_context, event, event->button.state & GDK_SHIFT_MASK, is_point_fill, is_touch_fill);
1246 desktop->clearWaitingCursor();
1247 // restore cursor when done; note that it may already be different if e.g. user
1248 // switched to another tool during interruptible tracing or drawing, in which case do nothing
1250 ret = TRUE;
1251 }
1253 r->stop();
1255 if (SP_IS_EVENT_CONTEXT(event_context)) {
1256 event_context->defaultMessageContext()->clear();
1257 }
1258 }
1259 }
1260 break;
1261 case GDK_KEY_PRESS:
1262 switch (get_group0_keyval (&event->key)) {
1263 case GDK_Up:
1264 case GDK_Down:
1265 case GDK_KP_Up:
1266 case GDK_KP_Down:
1267 // prevent the zoom field from activation
1268 if (!MOD__CTRL_ONLY)
1269 ret = TRUE;
1270 break;
1271 default:
1272 break;
1273 }
1274 break;
1275 default:
1276 break;
1277 }
1279 if (!ret) {
1280 if (((SPEventContextClass *) parent_class)->root_handler) {
1281 ret = ((SPEventContextClass *) parent_class)->root_handler(event_context, event);
1282 }
1283 }
1285 return ret;
1286 }
1289 static void sp_flood_finish(SPFloodContext *rc)
1290 {
1291 rc->_message_context->clear();
1293 if ( rc->item != NULL ) {
1294 SPDesktop * desktop;
1296 desktop = SP_EVENT_CONTEXT_DESKTOP(rc);
1298 SP_OBJECT(rc->item)->updateRepr();
1300 sp_canvas_end_forced_full_redraws(desktop->canvas);
1302 sp_desktop_selection(desktop)->set(rc->item);
1303 sp_document_done(sp_desktop_document(desktop), SP_VERB_CONTEXT_PAINTBUCKET,
1304 _("Fill bounded area"));
1306 rc->item = NULL;
1307 }
1308 }
1310 void flood_channels_set_channels( gint channels )
1311 {
1312 prefs_set_int_attribute("tools.paintbucket", "channels", channels);
1313 }
1315 /*
1316 Local Variables:
1317 mode:c++
1318 c-file-style:"stroustrup"
1319 c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
1320 indent-tabs-mode:nil
1321 fill-column:99
1322 End:
1323 */
1324 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=99 :