561328c54c66319239a5260f9eeb58399adbffb0
1 #define __SP_FLOOD_CONTEXT_C__
3 /*
4 * Flood fill drawing context
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>
23 #include "macros.h"
24 #include "display/sp-canvas.h"
25 #include "document.h"
26 #include "sp-namedview.h"
27 #include "sp-object.h"
28 #include "sp-rect.h"
29 #include "selection.h"
30 #include "selection-chemistry.h"
31 #include "desktop-handles.h"
32 #include "snap.h"
33 #include "desktop.h"
34 #include "desktop-style.h"
35 #include "message-stack.h"
36 #include "message-context.h"
37 #include "pixmaps/cursor-paintbucket.xpm"
38 #include "flood-context.h"
39 #include "sp-metrics.h"
40 #include <glibmm/i18n.h>
41 #include "object-edit.h"
42 #include "xml/repr.h"
43 #include "xml/node-event-vector.h"
44 #include "prefs-utils.h"
45 #include "context-fns.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-rotate-ops.h"
53 #include "libnr/nr-matrix-translate-ops.h"
54 #include "libnr/nr-rotate-fns.h"
55 #include "libnr/nr-scale-ops.h"
56 #include "libnr/nr-scale-translate-ops.h"
57 #include "libnr/nr-translate-matrix-ops.h"
58 #include "libnr/nr-translate-scale-ops.h"
59 #include "libnr/nr-matrix-ops.h"
60 #include "sp-item.h"
61 #include "sp-root.h"
62 #include "sp-defs.h"
63 #include "sp-path.h"
64 #include "splivarot.h"
65 #include "livarot/Path.h"
66 #include "livarot/Shape.h"
67 #include "libnr/n-art-bpath.h"
68 #include "svg/svg.h"
70 #include "trace/trace.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 = 0;
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());
225 }
227 static void merge_pixel_with_background(unsigned char *orig, unsigned char *bg, unsigned char *base) {
228 for (int i = 0; i < 3; i++) {
229 base[i] = (255 * (255 - bg[3])) / 255 + (bg[i] * bg[3]) / 255;
230 base[i] = (base[i] * (255 - orig[3])) / 255 + (orig[i] * orig[3]) / 255;
231 }
232 base[3] = 255;
233 }
235 inline unsigned char * get_pixel(guchar *px, int x, int y, int width) {
236 return px + (x + y * width) * 4;
237 }
239 enum PaintBucketChannels {
240 FLOOD_CHANNELS_RGB,
241 FLOOD_CHANNELS_ALPHA
242 };
244 GList * flood_channels_dropdown_items_list() {
245 GList *glist = NULL;
247 glist = g_list_append (glist, _("Visible Colors"));
248 glist = g_list_append (glist, _("Alpha"));
250 return glist;
251 }
253 static bool compare_pixels(unsigned char *check, unsigned char *orig, unsigned char *dtc, int tolerance, PaintBucketChannels method) {
254 int diff = 0;
256 switch (method) {
257 case FLOOD_CHANNELS_ALPHA:
258 return ((int)abs(check[3] - orig[3]) <= (tolerance / 4));
259 case FLOOD_CHANNELS_RGB:
260 unsigned char merged_orig[4];
261 unsigned char merged_check[4];
263 merge_pixel_with_background(orig, dtc, merged_orig);
264 merge_pixel_with_background(check, dtc, merged_check);
266 for (int i = 0; i < 3; i++) {
267 diff += (int)abs(merged_check[i] - merged_orig[i]);
268 }
269 return ((diff / 3) <= ((tolerance * 3) / 4));
270 }
272 return false;
273 }
275 static bool try_add_to_queue(std::queue<NR::Point> *fill_queue, guchar *px, guchar *trace_px, unsigned char *orig, unsigned char *dtc, int x, int y, int width, int tolerance, PaintBucketChannels method, bool fill_switch) {
276 unsigned char *t = get_pixel(px, x, y, width);
277 if (compare_pixels(t, orig, dtc, tolerance, method)) {
278 unsigned char *trace_t = get_pixel(trace_px, x, y, width);
279 if (trace_t[3] != 255) {
280 if (fill_switch) {
281 fill_queue->push(NR::Point(x, y));
282 }
283 }
284 return false;
285 }
286 return true;
287 }
289 static void do_trace(GdkPixbuf *px, SPDesktop *desktop, NR::Matrix transform) {
290 SPDocument *document = sp_desktop_document(desktop);
292 Inkscape::Trace::Potrace::PotraceTracingEngine pte;
294 pte.setTraceType(Inkscape::Trace::Potrace::TRACE_BRIGHTNESS);
295 pte.setInvert(false);
297 Glib::RefPtr<Gdk::Pixbuf> pixbuf = Glib::wrap(px, true);
299 std::vector<Inkscape::Trace::TracingEngineResult> results = pte.trace(pixbuf);
301 Inkscape::XML::Node *layer_repr = SP_GROUP(desktop->currentLayer())->repr;
302 Inkscape::XML::Document *xml_doc = sp_document_repr_doc(desktop->doc());
304 long totalNodeCount = 0L;
306 double offset = prefs_get_double_attribute("tools.paintbucket", "offset", 0.0);
308 for (unsigned int i=0 ; i<results.size() ; i++) {
309 Inkscape::Trace::TracingEngineResult result = results[i];
310 totalNodeCount += result.getNodeCount();
312 Inkscape::XML::Node *pathRepr = xml_doc->createElement("svg:path");
313 /* Set style */
314 sp_desktop_apply_style_tool (desktop, pathRepr, "tools.paintbucket", false);
316 NArtBpath *bpath = sp_svg_read_path(result.getPathData().c_str());
317 Path *path = bpath_to_Path(bpath);
318 g_free(bpath);
320 if (offset != 0) {
322 Shape *path_shape = new Shape();
324 path->ConvertWithBackData(0.03);
325 path->Fill(path_shape, 0);
326 delete path;
328 Shape *expanded_path_shape = new Shape();
330 expanded_path_shape->ConvertToShape(path_shape, fill_nonZero);
331 path_shape->MakeOffset(expanded_path_shape, offset * desktop->current_zoom(), join_round, 4);
332 expanded_path_shape->ConvertToShape(path_shape, fill_positive);
334 Path *expanded_path = new Path();
336 expanded_path->Reset();
337 expanded_path_shape->ConvertToForme(expanded_path);
338 expanded_path->ConvertEvenLines(1.0);
339 expanded_path->Simplify(1.0);
341 delete path_shape;
342 delete expanded_path_shape;
344 gchar *str = expanded_path->svg_dump_path();
345 if (str && *str) {
346 pathRepr->setAttribute("d", str);
347 g_free(str);
348 } else {
349 desktop->messageStack()->flash(Inkscape::WARNING_MESSAGE, _("<b>Too much inset</b>, the result is empty."));
350 Inkscape::GC::release(pathRepr);
351 g_free(str);
352 return;
353 }
355 delete expanded_path;
357 } else {
358 gchar *str = path->svg_dump_path();
359 delete path;
360 pathRepr->setAttribute("d", str);
361 g_free(str);
362 }
364 layer_repr->addChild(pathRepr, NULL);
366 SPObject *reprobj = document->getObjectByRepr(pathRepr);
367 if (reprobj) {
368 sp_item_write_transform(SP_ITEM(reprobj), pathRepr, transform, NULL);
370 // premultiply the item transform by the accumulated parent transform in the paste layer
371 NR::Matrix local = sp_item_i2doc_affine(SP_GROUP(desktop->currentLayer()));
372 if (!local.test_identity()) {
373 gchar const *t_str = pathRepr->attribute("transform");
374 NR::Matrix item_t (NR::identity());
375 if (t_str)
376 sp_svg_transform_read(t_str, &item_t);
377 item_t *= local.inverse();
378 // (we're dealing with unattached repr, so we write to its attr instead of using sp_item_set_transform)
379 gchar *affinestr=sp_svg_transform_write(item_t);
380 pathRepr->setAttribute("transform", affinestr);
381 g_free(affinestr);
382 }
384 Inkscape::Selection *selection = sp_desktop_selection(desktop);
385 selection->set(reprobj);
386 pathRepr->setPosition(-1);
388 desktop->messageStack()->flashF(Inkscape::WARNING_MESSAGE, _("Area filled, path with <b>%d</b> nodes created."), sp_nodes_in_path(SP_PATH(reprobj)));
389 }
391 Inkscape::GC::release(pathRepr);
393 }
394 }
396 struct bitmap_coords_info {
397 bool is_left;
398 int x;
399 int y;
400 int y_limit;
401 int width;
402 int tolerance;
403 PaintBucketChannels method;
404 unsigned char *dtc;
405 bool top_fill;
406 bool bottom_fill;
407 NR::Rect bbox;
408 NR::Rect screen;
409 };
411 enum ScanlineCheckResult {
412 SCANLINE_CHECK_OK,
413 SCANLINE_CHECK_ABORTED,
414 SCANLINE_CHECK_BOUNDARY
415 };
417 static ScanlineCheckResult perform_bitmap_scanline_check(std::queue<NR::Point> *fill_queue, guchar *px, guchar *trace_px, unsigned char *orig_color, bitmap_coords_info bci) {
418 bool aborted = false;
419 bool reached_screen_boundary = false;
420 bool ok;
422 bool keep_tracing;
423 unsigned char *t, *trace_t;
425 do {
426 ok = false;
427 if (bci.is_left) {
428 keep_tracing = (bci.x >= 0);
429 } else {
430 keep_tracing = (bci.x < bci.width);
431 }
433 if (keep_tracing) {
434 t = get_pixel(px, bci.x, bci.y, bci.width);
435 if (compare_pixels(t, orig_color, bci.dtc, bci.tolerance, bci.method)) {
436 for (int i = 0; i < 4; i++) { t[i] = 255 - t[i]; }
437 trace_t = get_pixel(trace_px, bci.x, bci.y, bci.width);
438 trace_t[3] = 255;
439 if (bci.y > 0) {
440 bci.top_fill = try_add_to_queue(fill_queue, px, trace_px, orig_color, bci.dtc, bci.x, bci.y - 1, bci.width, bci.tolerance, bci.method, bci.top_fill);
441 }
442 if (bci.y < bci.y_limit) {
443 bci.bottom_fill = try_add_to_queue(fill_queue, px, trace_px, orig_color, bci.dtc, bci.x, bci.y + 1, bci.width, bci.tolerance, bci.method, bci.bottom_fill);
444 }
445 if (bci.is_left) {
446 bci.x--;
447 } else {
448 bci.x++;
449 }
450 ok = true;
451 }
452 } else {
453 if (bci.bbox.min()[NR::X] > bci.screen.min()[NR::X]) {
454 aborted = true; break;
455 } else {
456 reached_screen_boundary = true;
457 }
458 }
459 } while (ok);
461 if (aborted) { return SCANLINE_CHECK_ABORTED; }
462 if (reached_screen_boundary) { return SCANLINE_CHECK_BOUNDARY; }
463 return SCANLINE_CHECK_OK;
464 }
466 static void sp_flood_do_flood_fill(SPEventContext *event_context, GdkEvent *event) {
467 SPDesktop *desktop = event_context->desktop;
468 SPDocument *document = sp_desktop_document(desktop);
470 /* Create new arena */
471 NRArena *arena = NRArena::create();
472 unsigned dkey = sp_item_display_key_new(1);
474 sp_document_ensure_up_to_date (document);
476 SPItem *document_root = SP_ITEM(SP_DOCUMENT_ROOT(document));
477 NR::Maybe<NR::Rect> bbox = document_root->getBounds(NR::identity());
479 if (!bbox) {
480 desktop->messageStack()->flash(Inkscape::WARNING_MESSAGE, _("<b>Area is not bounded</b>, cannot fill."));
481 return;
482 }
484 double zoom_scale = desktop->current_zoom();
485 double padding = 1.6;
487 NR::Rect screen = desktop->get_display_area();
489 int width = (int)ceil(screen.extent(NR::X) * zoom_scale * padding);
490 int height = (int)ceil(screen.extent(NR::Y) * zoom_scale * padding);
492 NR::Point origin(screen.min()[NR::X],
493 sp_document_height(document) - screen.extent(NR::Y) - screen.min()[NR::Y]);
495 origin[NR::X] = origin[NR::X] + (screen.extent(NR::X) * ((1 - padding) / 2));
496 origin[NR::Y] = origin[NR::Y] + (screen.extent(NR::Y) * ((1 - padding) / 2));
498 NR::scale scale(zoom_scale, zoom_scale);
499 NR::Matrix affine = scale * NR::translate(-origin * scale);
501 /* Create ArenaItems and set transform */
502 NRArenaItem *root = sp_item_invoke_show(SP_ITEM(sp_document_root(document)), arena, dkey, SP_ITEM_SHOW_DISPLAY);
503 nr_arena_item_set_transform(NR_ARENA_ITEM(root), affine);
505 NRGC gc(NULL);
506 nr_matrix_set_identity(&gc.transform);
508 NRRectL final_bbox;
509 final_bbox.x0 = 0;
510 final_bbox.y0 = 0;//row;
511 final_bbox.x1 = width;
512 final_bbox.y1 = height;//row + num_rows;
514 nr_arena_item_invoke_update(root, &final_bbox, &gc, NR_ARENA_ITEM_STATE_ALL, NR_ARENA_ITEM_STATE_NONE);
516 guchar *px = g_new(guchar, 4 * width * height);
517 //memset(px, 0x00, 4 * width * height);
519 NRPixBlock B;
520 nr_pixblock_setup_extern( &B, NR_PIXBLOCK_MODE_R8G8B8A8N,
521 final_bbox.x0, final_bbox.y0, final_bbox.x1, final_bbox.y1,
522 px, 4 * width, FALSE, FALSE );
524 SPNamedView *nv = sp_desktop_namedview(desktop);
525 unsigned long bgcolor = nv->pagecolor;
527 unsigned char dtc[4];
528 dtc[0] = NR_RGBA32_R(bgcolor);
529 dtc[1] = NR_RGBA32_G(bgcolor);
530 dtc[2] = NR_RGBA32_B(bgcolor);
531 dtc[3] = NR_RGBA32_A(bgcolor);
533 for (int fy = 0; fy < height; fy++) {
534 guchar *p = NR_PIXBLOCK_PX(&B) + fy * B.rs;
535 for (int fx = 0; fx < width; fx++) {
536 for (int i = 0; i < 4; i++) {
537 *p++ = dtc[i];
538 }
539 }
540 }
542 nr_arena_item_invoke_render(NULL, root, &final_bbox, &B, NR_ARENA_ITEM_RENDER_NO_CACHE );
543 nr_pixblock_release(&B);
545 // Hide items
546 sp_item_invoke_hide(SP_ITEM(sp_document_root(document)), dkey);
548 nr_arena_item_unref(root);
549 nr_object_unref((NRObject *) arena);
551 NR::Point pw = NR::Point(event->button.x / zoom_scale, sp_document_height(document) + (event->button.y / zoom_scale)) * affine;
553 pw[NR::X] = (int)MIN(width - 1, MAX(0, pw[NR::X]));
554 pw[NR::Y] = (int)MIN(height - 1, MAX(0, pw[NR::Y]));
556 guchar *trace_px = g_new(guchar, 4 * width * height);
557 memset(trace_px, 0x00, 4 * width * height);
559 std::queue<NR::Point> fill_queue;
560 fill_queue.push(pw);
562 bool aborted = false;
563 int y_limit = height - 1;
565 unsigned char orig_color[4];
566 unsigned char *orig_px = get_pixel(px, (int)pw[NR::X], (int)pw[NR::Y], width);
567 for (int i = 0; i < 4; i++) { orig_color[i] = orig_px[i]; }
569 unsigned char merged_orig[4];
571 merge_pixel_with_background(orig_color, dtc, merged_orig);
573 int tolerance = (255 * prefs_get_int_attribute_limited("tools.paintbucket", "tolerance", 1, 0, 100)) / 100;
574 PaintBucketChannels method = (PaintBucketChannels)prefs_get_int_attribute("tools.paintbucket", "channels", 0);
576 bool reached_screen_boundary = false;
578 bitmap_coords_info bci;
580 bci.y_limit = y_limit;
581 bci.width = width;
582 bci.tolerance = tolerance;
583 bci.method = method;
584 bci.bbox = *bbox;
585 bci.screen = screen;
586 bci.dtc = dtc;
588 while (!fill_queue.empty() && !aborted) {
589 NR::Point cp = fill_queue.front();
590 fill_queue.pop();
591 unsigned char *s = get_pixel(px, (int)cp[NR::X], (int)cp[NR::Y], width);
593 // same color at this point
594 if (compare_pixels(s, orig_color, dtc, tolerance, method)) {
595 int x = (int)cp[NR::X];
596 int y = (int)cp[NR::Y];
598 bool top_fill = true;
599 bool bottom_fill = true;
601 if (y > 0) {
602 top_fill = try_add_to_queue(&fill_queue, px, trace_px, orig_color, dtc, x, y - 1, width, tolerance, method, top_fill);
603 } else {
604 if (bbox->min()[NR::Y] > screen.min()[NR::Y]) {
605 aborted = true; break;
606 } else {
607 reached_screen_boundary = true;
608 }
609 }
610 if (y < y_limit) {
611 bottom_fill = try_add_to_queue(&fill_queue, px, trace_px, orig_color, dtc, x, y + 1, width, tolerance, method, bottom_fill);
612 } else {
613 if (bbox->max()[NR::Y] < screen.max()[NR::Y]) {
614 aborted = true; break;
615 } else {
616 reached_screen_boundary = true;
617 }
618 }
620 bci.is_left = true;
621 bci.x = x;
622 bci.y = y;
623 bci.top_fill = top_fill;
624 bci.bottom_fill = bottom_fill;
626 ScanlineCheckResult result = perform_bitmap_scanline_check(&fill_queue, px, trace_px, orig_color, bci);
628 switch (result) {
629 case SCANLINE_CHECK_ABORTED:
630 aborted = true;
631 break;
632 case SCANLINE_CHECK_BOUNDARY:
633 reached_screen_boundary = true;
634 break;
635 default:
636 break;
637 }
639 bci.is_left = false;
640 bci.x = x + 1;
641 bci.y = y;
642 bci.top_fill = top_fill;
643 bci.bottom_fill = bottom_fill;
645 result = perform_bitmap_scanline_check(&fill_queue, px, trace_px, orig_color, bci);
647 switch (result) {
648 case SCANLINE_CHECK_ABORTED:
649 aborted = true;
650 break;
651 case SCANLINE_CHECK_BOUNDARY:
652 reached_screen_boundary = true;
653 break;
654 default:
655 break;
656 }
657 }
658 }
660 g_free(px);
662 if (aborted) {
663 g_free(trace_px);
664 desktop->messageStack()->flash(Inkscape::WARNING_MESSAGE, _("<b>Area is not bounded</b>, cannot fill."));
665 return;
666 }
668 if (reached_screen_boundary) {
669 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."));
670 }
672 GdkPixbuf* pixbuf = gdk_pixbuf_new_from_data(trace_px,
673 GDK_COLORSPACE_RGB,
674 TRUE,
675 8, width, height, width * 4,
676 (GdkPixbufDestroyNotify)g_free,
677 NULL);
679 NR::Matrix inverted_affine = NR::Matrix(affine).inverse();
681 do_trace(pixbuf, desktop, inverted_affine);
683 g_free(trace_px);
685 sp_document_done(document, SP_VERB_CONTEXT_PAINTBUCKET, _("Fill bounded area"));
686 }
688 static gint sp_flood_context_item_handler(SPEventContext *event_context, SPItem *item, GdkEvent *event)
689 {
690 gint ret = FALSE;
692 switch (event->type) {
693 case GDK_BUTTON_PRESS:
694 break;
695 // motion and release are always on root (why?)
696 default:
697 break;
698 }
700 if (((SPEventContextClass *) parent_class)->item_handler) {
701 ret = ((SPEventContextClass *) parent_class)->item_handler(event_context, item, event);
702 }
704 return ret;
705 }
707 static gint sp_flood_context_root_handler(SPEventContext *event_context, GdkEvent *event)
708 {
709 gint ret = FALSE;
710 switch (event->type) {
711 case GDK_BUTTON_PRESS:
712 if ( event->button.button == 1 ) {
713 sp_flood_do_flood_fill(event_context, event);
715 ret = TRUE;
716 }
717 break;
718 case GDK_KEY_PRESS:
719 switch (get_group0_keyval (&event->key)) {
720 case GDK_Up:
721 case GDK_Down:
722 case GDK_KP_Up:
723 case GDK_KP_Down:
724 // prevent the zoom field from activation
725 if (!MOD__CTRL_ONLY)
726 ret = TRUE;
727 break;
728 default:
729 break;
730 }
731 break;
732 default:
733 break;
734 }
736 if (!ret) {
737 if (((SPEventContextClass *) parent_class)->root_handler) {
738 ret = ((SPEventContextClass *) parent_class)->root_handler(event_context, event);
739 }
740 }
742 return ret;
743 }
746 static void sp_flood_finish(SPFloodContext *rc)
747 {
748 rc->_message_context->clear();
750 if ( rc->item != NULL ) {
751 SPDesktop * desktop;
753 desktop = SP_EVENT_CONTEXT_DESKTOP(rc);
755 SP_OBJECT(rc->item)->updateRepr();
757 sp_canvas_end_forced_full_redraws(desktop->canvas);
759 sp_desktop_selection(desktop)->set(rc->item);
760 sp_document_done(sp_desktop_document(desktop), SP_VERB_CONTEXT_PAINTBUCKET,
761 _("Fill bounded area"));
763 rc->item = NULL;
764 }
765 }
767 void flood_channels_changed(GtkComboBox *cbox, GtkWidget *tbl)
768 {
769 prefs_set_int_attribute("tools.paintbucket", "channels", (gint)gtk_combo_box_get_active(cbox));
770 }
772 /*
773 Local Variables:
774 mode:c++
775 c-file-style:"stroustrup"
776 c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
777 indent-tabs-mode:nil
778 fill-column:99
779 End:
780 */
781 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=99 :