6ee1f9a683de014f194a348e916d024b6fca05f5
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 "splivarot.h"
64 #include "livarot/Path.h"
65 #include "livarot/Shape.h"
66 #include "libnr/n-art-bpath.h"
67 #include "svg/svg.h"
69 #include "trace/trace.h"
70 #include "trace/potrace/inkscape-potrace.h"
72 static void sp_flood_context_class_init(SPFloodContextClass *klass);
73 static void sp_flood_context_init(SPFloodContext *flood_context);
74 static void sp_flood_context_dispose(GObject *object);
76 static void sp_flood_context_setup(SPEventContext *ec);
78 static gint sp_flood_context_root_handler(SPEventContext *event_context, GdkEvent *event);
79 static gint sp_flood_context_item_handler(SPEventContext *event_context, SPItem *item, GdkEvent *event);
81 static void sp_flood_finish(SPFloodContext *rc);
83 static SPEventContextClass *parent_class;
86 GtkType sp_flood_context_get_type()
87 {
88 static GType type = 0;
89 if (!type) {
90 GTypeInfo info = {
91 sizeof(SPFloodContextClass),
92 NULL, NULL,
93 (GClassInitFunc) sp_flood_context_class_init,
94 NULL, NULL,
95 sizeof(SPFloodContext),
96 4,
97 (GInstanceInitFunc) sp_flood_context_init,
98 NULL, /* value_table */
99 };
100 type = g_type_register_static(SP_TYPE_EVENT_CONTEXT, "SPFloodContext", &info, (GTypeFlags) 0);
101 }
102 return type;
103 }
105 static void sp_flood_context_class_init(SPFloodContextClass *klass)
106 {
107 GObjectClass *object_class = (GObjectClass *) klass;
108 SPEventContextClass *event_context_class = (SPEventContextClass *) klass;
110 parent_class = (SPEventContextClass *) g_type_class_peek_parent(klass);
112 object_class->dispose = sp_flood_context_dispose;
114 event_context_class->setup = sp_flood_context_setup;
115 event_context_class->root_handler = sp_flood_context_root_handler;
116 event_context_class->item_handler = sp_flood_context_item_handler;
117 }
119 static void sp_flood_context_init(SPFloodContext *flood_context)
120 {
121 SPEventContext *event_context = SP_EVENT_CONTEXT(flood_context);
123 event_context->cursor_shape = cursor_paintbucket_xpm;
124 event_context->hot_x = 11;
125 event_context->hot_y = 30;
126 event_context->xp = 0;
127 event_context->yp = 0;
128 event_context->tolerance = 0;
129 event_context->within_tolerance = false;
130 event_context->item_to_select = NULL;
132 event_context->shape_repr = NULL;
133 event_context->shape_knot_holder = NULL;
135 flood_context->item = NULL;
137 new (&flood_context->sel_changed_connection) sigc::connection();
138 }
140 static void sp_flood_context_dispose(GObject *object)
141 {
142 SPFloodContext *rc = SP_FLOOD_CONTEXT(object);
143 SPEventContext *ec = SP_EVENT_CONTEXT(object);
145 rc->sel_changed_connection.disconnect();
146 rc->sel_changed_connection.~connection();
148 /* fixme: This is necessary because we do not grab */
149 if (rc->item) {
150 sp_flood_finish(rc);
151 }
153 if (ec->shape_repr) { // remove old listener
154 sp_repr_remove_listener_by_data(ec->shape_repr, ec);
155 Inkscape::GC::release(ec->shape_repr);
156 ec->shape_repr = 0;
157 }
159 if (rc->_message_context) {
160 delete rc->_message_context;
161 }
163 G_OBJECT_CLASS(parent_class)->dispose(object);
164 }
166 static Inkscape::XML::NodeEventVector ec_shape_repr_events = {
167 NULL, /* child_added */
168 NULL, /* child_removed */
169 ec_shape_event_attr_changed,
170 NULL, /* content_changed */
171 NULL /* order_changed */
172 };
174 /**
175 \brief Callback that processes the "changed" signal on the selection;
176 destroys old and creates new knotholder
177 */
178 void sp_flood_context_selection_changed(Inkscape::Selection *selection, gpointer data)
179 {
180 SPFloodContext *rc = SP_FLOOD_CONTEXT(data);
181 SPEventContext *ec = SP_EVENT_CONTEXT(rc);
183 if (ec->shape_repr) { // remove old listener
184 sp_repr_remove_listener_by_data(ec->shape_repr, ec);
185 Inkscape::GC::release(ec->shape_repr);
186 ec->shape_repr = 0;
187 }
189 SPItem *item = selection->singleItem();
190 if (item) {
191 Inkscape::XML::Node *shape_repr = SP_OBJECT_REPR(item);
192 if (shape_repr) {
193 ec->shape_repr = shape_repr;
194 Inkscape::GC::anchor(shape_repr);
195 sp_repr_add_listener(shape_repr, &ec_shape_repr_events, ec);
196 }
197 }
198 }
200 static void sp_flood_context_setup(SPEventContext *ec)
201 {
202 SPFloodContext *rc = SP_FLOOD_CONTEXT(ec);
204 if (((SPEventContextClass *) parent_class)->setup) {
205 ((SPEventContextClass *) parent_class)->setup(ec);
206 }
208 SPItem *item = sp_desktop_selection(ec->desktop)->singleItem();
209 if (item) {
210 Inkscape::XML::Node *shape_repr = SP_OBJECT_REPR(item);
211 if (shape_repr) {
212 ec->shape_repr = shape_repr;
213 Inkscape::GC::anchor(shape_repr);
214 sp_repr_add_listener(shape_repr, &ec_shape_repr_events, ec);
215 }
216 }
218 rc->sel_changed_connection.disconnect();
219 rc->sel_changed_connection = sp_desktop_selection(ec->desktop)->connectChanged(
220 sigc::bind(sigc::ptr_fun(&sp_flood_context_selection_changed), (gpointer)rc)
221 );
223 rc->_message_context = new Inkscape::MessageContext((ec->desktop)->messageStack());
224 }
226 static void merge_pixel_with_background(unsigned char *orig, unsigned char *bg, unsigned char *base) {
227 for (int i = 0; i < 3; i++) {
228 base[i] = (255 * (255 - bg[3])) / 255 + (bg[i] * bg[3]) / 255;
229 base[i] = (base[i] * (255 - orig[3])) / 255 + (orig[i] * orig[3]) / 255;
230 }
231 base[3] = 255;
232 }
234 inline unsigned char * get_pixel(guchar *px, int x, int y, int width) {
235 return px + (x + y * width) * 4;
236 }
238 enum PaintBucketChannels {
239 FLOOD_CHANNELS_RGB,
240 FLOOD_CHANNELS_ALPHA
241 };
243 GList * flood_channels_dropdown_items_list() {
244 GList *glist = NULL;
246 glist = g_list_append (glist, _("Visible Colors"));
247 glist = g_list_append (glist, _("Alpha"));
249 return glist;
250 }
252 static bool compare_pixels(unsigned char *check, unsigned char *orig, unsigned char *dtc, int tolerance, PaintBucketChannels method) {
253 int diff = 0;
255 switch (method) {
256 case FLOOD_CHANNELS_ALPHA:
257 return ((int)abs(check[3] - orig[3]) <= (tolerance / 4));
258 case FLOOD_CHANNELS_RGB:
259 unsigned char merged_orig[4];
260 unsigned char merged_check[4];
262 merge_pixel_with_background(orig, dtc, merged_orig);
263 merge_pixel_with_background(check, dtc, merged_check);
265 for (int i = 0; i < 3; i++) {
266 diff += (int)abs(merged_check[i] - merged_orig[i]);
267 }
268 return ((diff / 3) <= ((tolerance * 3) / 4));
269 }
271 return false;
272 }
274 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) {
275 unsigned char *t = get_pixel(px, x, y, width);
276 if (compare_pixels(t, orig, dtc, tolerance, method)) {
277 unsigned char *trace_t = get_pixel(trace_px, x, y, width);
278 if (trace_t[3] != 255) {
279 if (fill_switch) {
280 fill_queue->push(NR::Point(x, y));
281 }
282 }
283 return false;
284 }
285 return true;
286 }
288 static void do_trace(GdkPixbuf *px, SPDesktop *desktop, NR::Matrix transform) {
289 SPDocument *document = sp_desktop_document(desktop);
291 Inkscape::Trace::Potrace::PotraceTracingEngine pte;
293 pte.setTraceType(Inkscape::Trace::Potrace::TRACE_BRIGHTNESS);
294 pte.setInvert(false);
296 Glib::RefPtr<Gdk::Pixbuf> pixbuf = Glib::wrap(px, true);
298 std::vector<Inkscape::Trace::TracingEngineResult> results = pte.trace(pixbuf);
300 Inkscape::XML::Node *layer_repr = SP_GROUP(desktop->currentLayer())->repr;
301 Inkscape::XML::Document *xml_doc = sp_document_repr_doc(desktop->doc());
303 long totalNodeCount = 0L;
305 double offset = prefs_get_double_attribute_limited("tools.paintbucket", "offset", 1.5, 0.0, 2.0);
307 for (unsigned int i=0 ; i<results.size() ; i++) {
308 Inkscape::Trace::TracingEngineResult result = results[i];
309 totalNodeCount += result.getNodeCount();
311 Inkscape::XML::Node *pathRepr = xml_doc->createElement("svg:path");
312 /* Set style */
313 sp_desktop_apply_style_tool (desktop, pathRepr, "tools.paintbucket", false);
315 NArtBpath *bpath = sp_svg_read_path(result.getPathData().c_str());
316 Path *path = bpath_to_Path(bpath);
317 g_free(bpath);
319 Shape *path_shape = new Shape();
321 path->ConvertWithBackData(0.03);
322 path->Fill(path_shape, 0);
323 delete path;
325 Shape *expanded_path_shape = new Shape();
327 expanded_path_shape->ConvertToShape(path_shape, fill_nonZero);
328 path_shape->MakeOffset(expanded_path_shape, offset, join_round, 4);
329 expanded_path_shape->ConvertToShape(path_shape, fill_positive);
331 Path *expanded_path = new Path();
333 expanded_path->Reset();
334 expanded_path_shape->ConvertToForme(expanded_path);
335 expanded_path->ConvertEvenLines(1.0);
336 expanded_path->Simplify(1.0);
338 delete path_shape;
339 delete expanded_path_shape;
341 gchar *str = expanded_path->svg_dump_path();
342 delete expanded_path;
343 pathRepr->setAttribute("d", str);
344 g_free(str);
346 layer_repr->addChild(pathRepr, NULL);
348 SPObject *reprobj = document->getObjectByRepr(pathRepr);
349 if (reprobj) {
350 sp_item_write_transform(SP_ITEM(reprobj), pathRepr, transform, NULL);
352 // premultiply the item transform by the accumulated parent transform in the paste layer
353 NR::Matrix local = sp_item_i2doc_affine(SP_GROUP(desktop->currentLayer()));
354 if (!local.test_identity()) {
355 gchar const *t_str = pathRepr->attribute("transform");
356 NR::Matrix item_t (NR::identity());
357 if (t_str)
358 sp_svg_transform_read(t_str, &item_t);
359 item_t *= local.inverse();
360 // (we're dealing with unattached repr, so we write to its attr instead of using sp_item_set_transform)
361 gchar *affinestr=sp_svg_transform_write(item_t);
362 pathRepr->setAttribute("transform", affinestr);
363 g_free(affinestr);
364 }
366 Inkscape::Selection *selection = sp_desktop_selection(desktop);
367 selection->set(reprobj);
368 pathRepr->setPosition(-1);
369 }
371 Inkscape::GC::release(pathRepr);
372 }
373 }
375 struct bitmap_coords_info {
376 bool is_left;
377 int x;
378 int y;
379 int y_limit;
380 int width;
381 int tolerance;
382 PaintBucketChannels method;
383 unsigned char *dtc;
384 bool top_fill;
385 bool bottom_fill;
386 NR::Rect bbox;
387 NR::Rect screen;
388 };
390 enum ScanlineCheckResult {
391 SCANLINE_CHECK_OK,
392 SCANLINE_CHECK_ABORTED,
393 SCANLINE_CHECK_BOUNDARY
394 };
396 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) {
397 bool aborted = false;
398 bool reached_screen_boundary = false;
399 bool ok;
401 bool keep_tracing;
402 unsigned char *t, *trace_t;
404 do {
405 ok = false;
406 if (bci.is_left) {
407 keep_tracing = (bci.x >= 0);
408 } else {
409 keep_tracing = (bci.x < bci.width);
410 }
412 if (keep_tracing) {
413 t = get_pixel(px, bci.x, bci.y, bci.width);
414 if (compare_pixels(t, orig_color, bci.dtc, bci.tolerance, bci.method)) {
415 for (int i = 0; i < 4; i++) { t[i] = 255 - t[i]; }
416 trace_t = get_pixel(trace_px, bci.x, bci.y, bci.width);
417 trace_t[3] = 255;
418 if (bci.y > 0) {
419 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);
420 }
421 if (bci.y < bci.y_limit) {
422 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);
423 }
424 if (bci.is_left) {
425 bci.x--;
426 } else {
427 bci.x++;
428 }
429 ok = true;
430 }
431 } else {
432 if (bci.bbox.min()[NR::X] > bci.screen.min()[NR::X]) {
433 aborted = true; break;
434 } else {
435 reached_screen_boundary = true;
436 }
437 }
438 } while (ok);
440 if (aborted) { return SCANLINE_CHECK_ABORTED; }
441 if (reached_screen_boundary) { return SCANLINE_CHECK_BOUNDARY; }
442 return SCANLINE_CHECK_OK;
443 }
445 static void sp_flood_do_flood_fill(SPEventContext *event_context, GdkEvent *event) {
446 SPDesktop *desktop = event_context->desktop;
447 SPDocument *document = sp_desktop_document(desktop);
449 /* Create new arena */
450 NRArena *arena = NRArena::create();
451 unsigned dkey = sp_item_display_key_new(1);
453 sp_document_ensure_up_to_date (document);
455 SPItem *document_root = SP_ITEM(SP_DOCUMENT_ROOT(document));
456 NR::Maybe<NR::Rect> bbox = document_root->getBounds(NR::identity());
458 if (!bbox) {
459 desktop->messageStack()->flash(Inkscape::WARNING_MESSAGE, _("<b>Area is not bounded</b>, cannot fill."));
460 return;
461 }
463 double zoom_scale = desktop->current_zoom();
464 double padding = 1.6;
466 NR::Rect screen = desktop->get_display_area();
468 int width = (int)ceil(screen.extent(NR::X) * zoom_scale * padding);
469 int height = (int)ceil(screen.extent(NR::Y) * zoom_scale * padding);
471 NR::Point origin(screen.min()[NR::X],
472 sp_document_height(document) - screen.extent(NR::Y) - screen.min()[NR::Y]);
474 origin[NR::X] = origin[NR::X] + (screen.extent(NR::X) * ((1 - padding) / 2));
475 origin[NR::Y] = origin[NR::Y] + (screen.extent(NR::Y) * ((1 - padding) / 2));
477 NR::scale scale(zoom_scale, zoom_scale);
478 NR::Matrix affine = scale * NR::translate(-origin * scale);
480 /* Create ArenaItems and set transform */
481 NRArenaItem *root = sp_item_invoke_show(SP_ITEM(sp_document_root(document)), arena, dkey, SP_ITEM_SHOW_DISPLAY);
482 nr_arena_item_set_transform(NR_ARENA_ITEM(root), affine);
484 NRGC gc(NULL);
485 nr_matrix_set_identity(&gc.transform);
487 NRRectL final_bbox;
488 final_bbox.x0 = 0;
489 final_bbox.y0 = 0;//row;
490 final_bbox.x1 = width;
491 final_bbox.y1 = height;//row + num_rows;
493 nr_arena_item_invoke_update(root, &final_bbox, &gc, NR_ARENA_ITEM_STATE_ALL, NR_ARENA_ITEM_STATE_NONE);
495 guchar *px = g_new(guchar, 4 * width * height);
496 //memset(px, 0x00, 4 * width * height);
498 NRPixBlock B;
499 nr_pixblock_setup_extern( &B, NR_PIXBLOCK_MODE_R8G8B8A8N,
500 final_bbox.x0, final_bbox.y0, final_bbox.x1, final_bbox.y1,
501 px, 4 * width, FALSE, FALSE );
503 SPNamedView *nv = sp_desktop_namedview(desktop);
504 unsigned long bgcolor = nv->pagecolor;
506 unsigned char dtc[4];
507 dtc[0] = NR_RGBA32_R(bgcolor);
508 dtc[1] = NR_RGBA32_G(bgcolor);
509 dtc[2] = NR_RGBA32_B(bgcolor);
510 dtc[3] = NR_RGBA32_A(bgcolor);
512 for (int fy = 0; fy < height; fy++) {
513 guchar *p = NR_PIXBLOCK_PX(&B) + fy * B.rs;
514 for (int fx = 0; fx < width; fx++) {
515 for (int i = 0; i < 4; i++) {
516 *p++ = dtc[i];
517 }
518 }
519 }
521 nr_arena_item_invoke_render(NULL, root, &final_bbox, &B, NR_ARENA_ITEM_RENDER_NO_CACHE );
522 nr_pixblock_release(&B);
524 // Hide items
525 sp_item_invoke_hide(SP_ITEM(sp_document_root(document)), dkey);
527 nr_arena_item_unref(root);
528 nr_object_unref((NRObject *) arena);
530 NR::Point pw = NR::Point(event->button.x / zoom_scale, sp_document_height(document) + (event->button.y / zoom_scale)) * affine;
532 pw[NR::X] = (int)MIN(width - 1, MAX(0, pw[NR::X]));
533 pw[NR::Y] = (int)MIN(height - 1, MAX(0, pw[NR::Y]));
535 guchar *trace_px = g_new(guchar, 4 * width * height);
536 memset(trace_px, 0x00, 4 * width * height);
538 std::queue<NR::Point> fill_queue;
539 fill_queue.push(pw);
541 bool aborted = false;
542 int y_limit = height - 1;
544 unsigned char orig_color[4];
545 unsigned char *orig_px = get_pixel(px, (int)pw[NR::X], (int)pw[NR::Y], width);
546 for (int i = 0; i < 4; i++) { orig_color[i] = orig_px[i]; }
548 unsigned char merged_orig[4];
550 merge_pixel_with_background(orig_color, dtc, merged_orig);
552 int tolerance = (255 * prefs_get_int_attribute_limited("tools.paintbucket", "tolerance", 1, 0, 100)) / 100;
553 PaintBucketChannels method = (PaintBucketChannels)prefs_get_int_attribute("tools.paintbucket", "channels", 0);
555 bool reached_screen_boundary = false;
557 bitmap_coords_info bci;
559 bci.y_limit = y_limit;
560 bci.width = width;
561 bci.tolerance = tolerance;
562 bci.method = method;
563 bci.bbox = *bbox;
564 bci.screen = screen;
565 bci.dtc = dtc;
567 while (!fill_queue.empty() && !aborted) {
568 NR::Point cp = fill_queue.front();
569 fill_queue.pop();
570 unsigned char *s = get_pixel(px, (int)cp[NR::X], (int)cp[NR::Y], width);
572 // same color at this point
573 if (compare_pixels(s, orig_color, dtc, tolerance, method)) {
574 int x = (int)cp[NR::X];
575 int y = (int)cp[NR::Y];
577 bool top_fill = true;
578 bool bottom_fill = true;
580 if (y > 0) {
581 top_fill = try_add_to_queue(&fill_queue, px, trace_px, orig_color, dtc, x, y - 1, width, tolerance, method, top_fill);
582 } else {
583 if (bbox->min()[NR::Y] > screen.min()[NR::Y]) {
584 aborted = true; break;
585 } else {
586 reached_screen_boundary = true;
587 }
588 }
589 if (y < y_limit) {
590 bottom_fill = try_add_to_queue(&fill_queue, px, trace_px, orig_color, dtc, x, y + 1, width, tolerance, method, bottom_fill);
591 } else {
592 if (bbox->max()[NR::Y] < screen.max()[NR::Y]) {
593 aborted = true; break;
594 } else {
595 reached_screen_boundary = true;
596 }
597 }
599 bci.is_left = true;
600 bci.x = x;
601 bci.y = y;
602 bci.top_fill = top_fill;
603 bci.bottom_fill = bottom_fill;
605 ScanlineCheckResult result = perform_bitmap_scanline_check(&fill_queue, px, trace_px, orig_color, bci);
607 switch (result) {
608 case SCANLINE_CHECK_ABORTED:
609 aborted = true;
610 break;
611 case SCANLINE_CHECK_BOUNDARY:
612 reached_screen_boundary = true;
613 break;
614 default:
615 break;
616 }
618 bci.is_left = false;
619 bci.x = x + 1;
620 bci.y = y;
621 bci.top_fill = top_fill;
622 bci.bottom_fill = bottom_fill;
624 result = perform_bitmap_scanline_check(&fill_queue, px, trace_px, orig_color, bci);
626 switch (result) {
627 case SCANLINE_CHECK_ABORTED:
628 aborted = true;
629 break;
630 case SCANLINE_CHECK_BOUNDARY:
631 reached_screen_boundary = true;
632 break;
633 default:
634 break;
635 }
636 }
637 }
639 g_free(px);
641 if (aborted) {
642 g_free(trace_px);
643 desktop->messageStack()->flash(Inkscape::WARNING_MESSAGE, _("<b>Area is not bounded</b>, cannot fill."));
644 return;
645 }
647 if (reached_screen_boundary) {
648 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."));
649 }
651 GdkPixbuf* pixbuf = gdk_pixbuf_new_from_data(trace_px,
652 GDK_COLORSPACE_RGB,
653 TRUE,
654 8, width, height, width * 4,
655 (GdkPixbufDestroyNotify)g_free,
656 NULL);
658 NR::Matrix inverted_affine = NR::Matrix(affine).inverse();
660 do_trace(pixbuf, desktop, inverted_affine);
662 g_free(trace_px);
664 sp_document_done(document, SP_VERB_CONTEXT_PAINTBUCKET, _("Fill bounded area"));
665 }
667 static gint sp_flood_context_item_handler(SPEventContext *event_context, SPItem *item, GdkEvent *event)
668 {
669 gint ret = FALSE;
671 switch (event->type) {
672 case GDK_BUTTON_PRESS:
673 break;
674 // motion and release are always on root (why?)
675 default:
676 break;
677 }
679 if (((SPEventContextClass *) parent_class)->item_handler) {
680 ret = ((SPEventContextClass *) parent_class)->item_handler(event_context, item, event);
681 }
683 return ret;
684 }
686 static gint sp_flood_context_root_handler(SPEventContext *event_context, GdkEvent *event)
687 {
688 gint ret = FALSE;
689 switch (event->type) {
690 case GDK_BUTTON_PRESS:
691 if ( event->button.button == 1 ) {
692 sp_flood_do_flood_fill(event_context, event);
694 ret = TRUE;
695 }
696 break;
697 case GDK_KEY_PRESS:
698 switch (get_group0_keyval (&event->key)) {
699 case GDK_Up:
700 case GDK_Down:
701 case GDK_KP_Up:
702 case GDK_KP_Down:
703 // prevent the zoom field from activation
704 if (!MOD__CTRL_ONLY)
705 ret = TRUE;
706 break;
707 default:
708 break;
709 }
710 break;
711 default:
712 break;
713 }
715 if (!ret) {
716 if (((SPEventContextClass *) parent_class)->root_handler) {
717 ret = ((SPEventContextClass *) parent_class)->root_handler(event_context, event);
718 }
719 }
721 return ret;
722 }
725 static void sp_flood_finish(SPFloodContext *rc)
726 {
727 rc->_message_context->clear();
729 if ( rc->item != NULL ) {
730 SPDesktop * desktop;
732 desktop = SP_EVENT_CONTEXT_DESKTOP(rc);
734 SP_OBJECT(rc->item)->updateRepr();
736 sp_canvas_end_forced_full_redraws(desktop->canvas);
738 sp_desktop_selection(desktop)->set(rc->item);
739 sp_document_done(sp_desktop_document(desktop), SP_VERB_CONTEXT_PAINTBUCKET,
740 _("Fill bounded area"));
742 rc->item = NULL;
743 }
744 }
746 void flood_channels_changed(GtkComboBox *cbox, GtkWidget *tbl)
747 {
748 prefs_set_int_attribute("tools.paintbucket", "channels", (gint)gtk_combo_box_get_active(cbox));
749 }
750 /*
751 Local Variables:
752 mode:c++
753 c-file-style:"stroustrup"
754 c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
755 indent-tabs-mode:nil
756 fill-column:99
757 End:
758 */
759 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=99 :