1 #define __SP_GRADIENT_VECTOR_C__
3 /*
4 * Gradient vector selection widget
5 *
6 * Authors:
7 * Lauris Kaplinski <lauris@kaplinski.com>
8 * bulia byak <buliabyak@users.sf.net>
9 * MenTaLguY <mental@rydia.net>
10 *
11 * Copyright (C) 2001-2002 Lauris Kaplinski
12 * Copyright (C) 2001 Ximian, Inc.
13 * Copyright (C) 2004 Monash University
14 * Copyright (C) 2004 David Turner
15 * Copyright (C) 2006 MenTaLguY
16 *
17 * Released under GNU GPL, read the file 'COPYING' for more information
18 *
19 */
21 #ifdef HAVE_CONFIG_H
22 # include "config.h"
23 #endif
24 #ifdef HAVE_STRING_H
25 #endif
26 #include <gtk/gtk.h>
27 #include "macros.h"
28 #include <glibmm/i18n.h>
29 #include "../widgets/gradient-image.h"
30 #include "../inkscape.h"
31 #include "../document-private.h"
32 #include "../gradient-chemistry.h"
33 #include "gradient-vector.h"
34 #include "../helper/window.h"
36 #include "xml/repr.h"
38 #include "../dialogs/dialog-events.h"
39 #include "../prefs-utils.h"
40 #include "svg/css-ostringstream.h"
41 #include "sp-stop.h"
43 #include <sigc++/functors/ptr_fun.h>
44 #include <sigc++/adaptors/bind.h>
46 enum {
47 VECTOR_SET,
48 LAST_SIGNAL
49 };
51 static void sp_gradient_vector_selector_class_init (SPGradientVectorSelectorClass *klass);
52 static void sp_gradient_vector_selector_init (SPGradientVectorSelector *gvs);
53 static void sp_gradient_vector_selector_destroy (GtkObject *object);
55 static void sp_gvs_gradient_release (SPObject *obj, SPGradientVectorSelector *gvs);
56 static void sp_gvs_defs_release (SPObject *defs, SPGradientVectorSelector *gvs);
57 static void sp_gvs_defs_modified (SPObject *defs, guint flags, SPGradientVectorSelector *gvs);
59 static void sp_gvs_rebuild_gui_full (SPGradientVectorSelector *gvs);
60 static void sp_gvs_gradient_activate (GtkMenuItem *mi, SPGradientVectorSelector *gvs);
62 static GtkVBoxClass *parent_class;
63 static guint signals[LAST_SIGNAL] = {0};
65 static GtkWidget *dlg = NULL;
66 static win_data wd;
67 static gint x = -1000, y = -1000, w = 0, h = 0; // impossible original values to make sure they are read from prefs
68 static gchar const *prefs_path = "dialogs.gradienteditor";
70 GtkType
71 sp_gradient_vector_selector_get_type (void)
72 {
73 static GtkType type = 0;
74 if (!type) {
75 GtkTypeInfo info = {
76 "SPGradientVectorSelector",
77 sizeof (SPGradientVectorSelector),
78 sizeof (SPGradientVectorSelectorClass),
79 (GtkClassInitFunc) sp_gradient_vector_selector_class_init,
80 (GtkObjectInitFunc) sp_gradient_vector_selector_init,
81 NULL, NULL, NULL
82 };
83 type = gtk_type_unique (GTK_TYPE_VBOX, &info);
84 }
85 return type;
86 }
88 static void
89 sp_gradient_vector_selector_class_init (SPGradientVectorSelectorClass *klass)
90 {
91 GtkObjectClass *object_class;
93 object_class = GTK_OBJECT_CLASS (klass);
95 parent_class = (GtkVBoxClass*)gtk_type_class (GTK_TYPE_VBOX);
97 signals[VECTOR_SET] = gtk_signal_new ("vector_set",
98 GTK_RUN_LAST,
99 GTK_CLASS_TYPE(object_class),
100 GTK_SIGNAL_OFFSET (SPGradientVectorSelectorClass, vector_set),
101 gtk_marshal_NONE__POINTER,
102 GTK_TYPE_NONE, 1,
103 GTK_TYPE_POINTER);
105 object_class->destroy = sp_gradient_vector_selector_destroy;
106 }
108 static void
109 sp_gradient_vector_selector_init (SPGradientVectorSelector *gvs)
110 {
111 gvs->idlabel = TRUE;
113 gvs->doc = NULL;
114 gvs->gr = NULL;
116 new (&gvs->gradient_release_connection) sigc::connection();
117 new (&gvs->defs_release_connection) sigc::connection();
118 new (&gvs->defs_modified_connection) sigc::connection();
120 gvs->menu = gtk_option_menu_new ();
121 gtk_widget_show (gvs->menu);
122 gtk_box_pack_start (GTK_BOX (gvs), gvs->menu, TRUE, TRUE, 0);
123 }
125 static void
126 sp_gradient_vector_selector_destroy (GtkObject *object)
127 {
128 SPGradientVectorSelector *gvs;
130 gvs = SP_GRADIENT_VECTOR_SELECTOR (object);
132 if (gvs->gr) {
133 gvs->gradient_release_connection.disconnect();
134 gvs->gr = NULL;
135 }
137 if (gvs->doc) {
138 gvs->defs_release_connection.disconnect();
139 gvs->defs_modified_connection.disconnect();
140 gvs->doc = NULL;
141 }
143 gvs->gradient_release_connection.~connection();
144 gvs->defs_release_connection.~connection();
145 gvs->defs_modified_connection.~connection();
147 if (((GtkObjectClass *) (parent_class))->destroy)
148 (* ((GtkObjectClass *) (parent_class))->destroy) (object);
149 }
151 GtkWidget *
152 sp_gradient_vector_selector_new (SPDocument *doc, SPGradient *gr)
153 {
154 GtkWidget *gvs;
156 g_return_val_if_fail (!gr || SP_IS_GRADIENT (gr), NULL);
157 g_return_val_if_fail (!gr || (SP_OBJECT_DOCUMENT (gr) == doc), NULL);
159 gvs = (GtkWidget*)gtk_type_new (SP_TYPE_GRADIENT_VECTOR_SELECTOR);
161 if (doc) {
162 sp_gradient_vector_selector_set_gradient (SP_GRADIENT_VECTOR_SELECTOR (gvs), doc, gr);
163 } else {
164 sp_gvs_rebuild_gui_full (SP_GRADIENT_VECTOR_SELECTOR (gvs));
165 }
167 return gvs;
168 }
170 void
171 sp_gradient_vector_selector_set_gradient (SPGradientVectorSelector *gvs, SPDocument *doc, SPGradient *gr)
172 {
173 static bool suppress = FALSE;
175 g_return_if_fail (gvs != NULL);
176 g_return_if_fail (SP_IS_GRADIENT_VECTOR_SELECTOR (gvs));
177 g_return_if_fail (!gr || (doc != NULL));
178 g_return_if_fail (!gr || SP_IS_GRADIENT (gr));
179 g_return_if_fail (!gr || (SP_OBJECT_DOCUMENT (gr) == doc));
180 g_return_if_fail (!gr || SP_GRADIENT_HAS_STOPS (gr));
182 if (doc != gvs->doc) {
183 /* Disconnect signals */
184 if (gvs->gr) {
185 gvs->gradient_release_connection.disconnect();
186 gvs->gr = NULL;
187 }
188 if (gvs->doc) {
189 gvs->defs_release_connection.disconnect();
190 gvs->defs_modified_connection.disconnect();
191 gvs->doc = NULL;
192 }
193 /* Connect signals */
194 if (doc) {
195 gvs->defs_release_connection = SP_DOCUMENT_DEFS(doc)->connectRelease(sigc::bind<1>(sigc::ptr_fun(&sp_gvs_defs_release), gvs));
196 gvs->defs_modified_connection = SP_DOCUMENT_DEFS(doc)->connectModified(sigc::bind<2>(sigc::ptr_fun(&sp_gvs_defs_modified), gvs));
197 }
198 if (gr) {
199 gvs->gradient_release_connection = gr->connectRelease(sigc::bind<1>(sigc::ptr_fun(&sp_gvs_gradient_release), gvs));
200 }
201 gvs->doc = doc;
202 gvs->gr = gr;
203 sp_gvs_rebuild_gui_full (gvs);
204 if (!suppress) g_signal_emit (G_OBJECT (gvs), signals[VECTOR_SET], 0, gr);
205 } else if (gr != gvs->gr) {
206 /* Harder case - keep document, rebuild menus and stuff */
207 /* fixme: (Lauris) */
208 suppress = TRUE;
209 sp_gradient_vector_selector_set_gradient (gvs, NULL, NULL);
210 sp_gradient_vector_selector_set_gradient (gvs, doc, gr);
211 suppress = FALSE;
212 g_signal_emit (G_OBJECT (gvs), signals[VECTOR_SET], 0, gr);
213 }
214 /* The case of setting NULL -> NULL is not very interesting */
215 }
217 SPDocument *
218 sp_gradient_vector_selector_get_document (SPGradientVectorSelector *gvs)
219 {
220 g_return_val_if_fail (gvs != NULL, NULL);
221 g_return_val_if_fail (SP_IS_GRADIENT_VECTOR_SELECTOR (gvs), NULL);
223 return gvs->doc;
224 }
226 SPGradient *
227 sp_gradient_vector_selector_get_gradient (SPGradientVectorSelector *gvs)
228 {
229 g_return_val_if_fail (gvs != NULL, NULL);
230 g_return_val_if_fail (SP_IS_GRADIENT_VECTOR_SELECTOR (gvs), NULL);
232 return gvs->gr;
233 }
235 static void
236 sp_gvs_rebuild_gui_full (SPGradientVectorSelector *gvs)
237 {
238 /* Clear old menu, if there is any */
239 if (gtk_option_menu_get_menu (GTK_OPTION_MENU (gvs->menu))) {
240 gtk_option_menu_remove_menu (GTK_OPTION_MENU (gvs->menu));
241 }
243 /* Create new menu widget */
244 GtkWidget *m = gtk_menu_new ();
245 gtk_widget_show (m);
247 /* Pick up all gradients with vectors */
248 GSList *gl = NULL;
249 if (gvs->gr) {
250 const GSList *gradients = sp_document_get_resource_list (SP_OBJECT_DOCUMENT (gvs->gr), "gradient");
251 for (const GSList *l = gradients; l != NULL; l = l->next) {
252 if (SP_GRADIENT_HAS_STOPS (l->data)) {
253 gl = g_slist_prepend (gl, l->data);
254 }
255 }
256 }
257 gl = g_slist_reverse (gl);
259 gint pos = 0;
260 gint idx = 0;
262 if (!gvs->doc) {
263 GtkWidget *i;
264 i = gtk_menu_item_new_with_label (_("No document selected"));
265 gtk_widget_show (i);
266 gtk_menu_append (GTK_MENU (m), i);
267 gtk_widget_set_sensitive (gvs->menu, FALSE);
268 } else if (!gl) {
269 GtkWidget *i;
270 i = gtk_menu_item_new_with_label (_("No gradients in document"));
271 gtk_widget_show (i);
272 gtk_menu_append (GTK_MENU (m), i);
273 gtk_widget_set_sensitive (gvs->menu, FALSE);
274 } else if (!gvs->gr) {
275 GtkWidget *i;
276 i = gtk_menu_item_new_with_label (_("No gradient selected"));
277 gtk_widget_show (i);
278 gtk_menu_append (GTK_MENU (m), i);
279 gtk_widget_set_sensitive (gvs->menu, FALSE);
280 } else {
281 while (gl) {
282 SPGradient *gr;
283 GtkWidget *i, *w;
284 gr = SP_GRADIENT (gl->data);
285 gl = g_slist_remove (gl, gr);
287 /* We have to know: */
288 /* Gradient destroy */
289 /* Gradient name change */
290 i = gtk_menu_item_new ();
291 gtk_widget_show (i);
292 g_object_set_data (G_OBJECT (i), "gradient", gr);
293 g_signal_connect (G_OBJECT (i), "activate", G_CALLBACK (sp_gvs_gradient_activate), gvs);
295 w = sp_gradient_image_new (gr);
296 gtk_widget_show (w);
298 if (gvs->idlabel) {
299 GtkWidget *hb, *l;
300 hb = gtk_hbox_new (FALSE, 4);
301 gtk_widget_show (hb);
302 l = gtk_label_new (SP_OBJECT_ID (gr));
303 gtk_widget_show (l);
304 gtk_misc_set_alignment (GTK_MISC (l), 1.0, 0.5);
305 gtk_box_pack_start (GTK_BOX (hb), l, TRUE, TRUE, 0);
306 gtk_box_pack_start (GTK_BOX (hb), w, FALSE, FALSE, 0);
307 w = hb;
308 }
310 gtk_container_add (GTK_CONTAINER (i), w);
312 gtk_menu_append (GTK_MENU (m), i);
314 if (gr == gvs->gr) pos = idx;
315 idx += 1;
316 }
317 gtk_widget_set_sensitive (gvs->menu, TRUE);
318 }
320 gtk_option_menu_set_menu (GTK_OPTION_MENU (gvs->menu), m);
321 /* Set history */
322 gtk_option_menu_set_history (GTK_OPTION_MENU (gvs->menu), pos);
323 }
325 static void
326 sp_gvs_gradient_activate (GtkMenuItem *mi, SPGradientVectorSelector *gvs)
327 {
328 SPGradient *gr, *norm;
330 gr = (SPGradient*)g_object_get_data (G_OBJECT (mi), "gradient");
331 /* Hmmm... bad things may happen here, if actual gradient is something new */
332 /* Namely - menuitems etc. will be fucked up */
333 /* Hmmm - probably we can just re-set it as menuitem data (Lauris) */
335 //g_print ("SPGradientVectorSelector: gradient %s activated\n", SP_OBJECT_ID (gr));
337 norm = sp_gradient_ensure_vector_normalized (gr);
338 if (norm != gr) {
339 //g_print ("SPGradientVectorSelector: become %s after normalization\n", SP_OBJECT_ID (norm));
340 /* But be careful that we do not have gradient saved anywhere else */
341 g_object_set_data (G_OBJECT (mi), "gradient", norm);
342 }
344 /* fixme: Really we would want to use _set_vector */
345 /* Detach old */
346 if (gvs->gr) {
347 gvs->gradient_release_connection.disconnect();
348 gvs->gr = NULL;
349 }
350 /* Attach new */
351 if (norm) {
352 gvs->gradient_release_connection = norm->connectRelease(sigc::bind<1>(sigc::ptr_fun(&sp_gvs_gradient_release), gvs));
353 gvs->gr = norm;
354 }
356 g_signal_emit (G_OBJECT (gvs), signals[VECTOR_SET], 0, norm);
358 if (norm != gr) {
359 /* We do extra undo push here */
360 /* If handler has already done it, it is just NOP */
361 sp_document_done (SP_OBJECT_DOCUMENT (norm), SP_VERB_CONTEXT_GRADIENT,
362 /* TODO: annotate */ "gradient-vector.cpp:350");
363 }
364 }
366 static void
367 sp_gvs_gradient_release (SPObject *obj, SPGradientVectorSelector *gvs)
368 {
369 /* Disconnect gradient */
370 if (gvs->gr) {
371 gvs->gradient_release_connection.disconnect();
372 gvs->gr = NULL;
373 }
375 /* Rebuild GUI */
376 sp_gvs_rebuild_gui_full (gvs);
377 }
379 static void
380 sp_gvs_defs_release (SPObject *defs, SPGradientVectorSelector *gvs)
381 {
382 gvs->doc = NULL;
384 gvs->defs_release_connection.disconnect();
385 gvs->defs_modified_connection.disconnect();
387 /* Disconnect gradient as well */
388 if (gvs->gr) {
389 gvs->gradient_release_connection.disconnect();
390 gvs->gr = NULL;
391 }
393 /* Rebuild GUI */
394 sp_gvs_rebuild_gui_full (gvs);
395 }
397 static void
398 sp_gvs_defs_modified (SPObject *defs, guint flags, SPGradientVectorSelector *gvs)
399 {
400 /* fixme: We probably have to check some flags here (Lauris) */
402 sp_gvs_rebuild_gui_full (gvs);
403 }
405 /*##################################################################
406 ### Vector Editing Widget
407 ##################################################################*/
409 #include "../widgets/sp-color-notebook.h"
410 #include "../widgets/sp-color-preview.h"
411 #include "../widgets/widget-sizes.h"
412 #include "../xml/node-event-vector.h"
413 #include "../svg/svg-color.h"
416 #define PAD 4
418 static GtkWidget *sp_gradient_vector_widget_new (SPGradient *gradient, SPStop *stop);
420 static void sp_gradient_vector_widget_load_gradient (GtkWidget *widget, SPGradient *gradient);
421 static bool sp_gradient_vector_dialog_delete (GtkWidget *widget, GdkEvent *event, GtkWidget *dialog);
422 static void sp_gradient_vector_dialog_destroy (GtkObject *object, gpointer data);
424 static void sp_gradient_vector_widget_destroy (GtkObject *object, gpointer data);
425 static void sp_gradient_vector_gradient_release (SPObject *obj, GtkWidget *widget);
426 static void sp_gradient_vector_gradient_modified (SPObject *obj, guint flags, GtkWidget *widget);
427 static void sp_gradient_vector_color_dragged (SPColorSelector *csel, GtkObject *object);
428 static void sp_gradient_vector_color_changed (SPColorSelector *csel, GtkObject *object);
429 static void update_stop_list( GtkWidget *mnu, SPGradient *gradient, SPStop *new_stop);
431 static bool blocked = FALSE;
433 static void grad_edit_dia_stop_added_or_removed (Inkscape::XML::Node *repr, Inkscape::XML::Node *child, Inkscape::XML::Node *ref, gpointer data)
434 {
435 GtkWidget *vb = GTK_WIDGET(data);
436 GtkWidget *mnu = (GtkWidget *)g_object_get_data (G_OBJECT(vb), "stopmenu");
437 SPGradient *gradient = (SPGradient *)g_object_get_data (G_OBJECT(vb), "gradient");
438 update_stop_list (mnu, gradient, NULL);
439 }
441 //FIXME!!! We must also listen to attr changes on all children (i.e. stops) too,
442 //otherwise the dialog does not reflect undoing color or offset change. This is a major
443 //hassle, unless we have a "one of the descendants changed in some way" signal.
444 static Inkscape::XML::NodeEventVector grad_edit_dia_repr_events =
445 {
446 grad_edit_dia_stop_added_or_removed, /* child_added */
447 grad_edit_dia_stop_added_or_removed, /* child_removed */
448 NULL, /* attr_changed*/
449 NULL, /* content_changed */
450 NULL /* order_changed */
451 };
453 static void
454 verify_grad(SPGradient *gradient)
455 {
456 int i = 0;
457 SPStop *stop = NULL;
458 /* count stops */
459 for ( SPObject *ochild = sp_object_first_child(SP_OBJECT(gradient)) ; ochild != NULL ; ochild = SP_OBJECT_NEXT(ochild) ) {
460 if (SP_IS_STOP (ochild)) {
461 i++;
462 stop = SP_STOP(ochild);
463 }
464 }
466 if (i < 1) {
467 gchar c[64];
468 sp_svg_write_color (c, 64, 0x00000000);
470 Inkscape::CSSOStringStream os;
471 os << "stop-color:" << c << ";stop-opacity:" << 1.0 << ";";
473 Inkscape::XML::Node *child;
475 child = sp_repr_new ("svg:stop");
476 sp_repr_set_css_double(child, "offset", 0.0);
477 child->setAttribute("style", os.str().c_str());
478 SP_OBJECT_REPR (gradient)->addChild(child, NULL);
480 child = sp_repr_new ("svg:stop");
481 sp_repr_set_css_double(child, "offset", 1.0);
482 child->setAttribute("style", os.str().c_str());
483 SP_OBJECT_REPR (gradient)->addChild(child, NULL);
484 }
485 if (i < 2) {
486 sp_repr_set_css_double(SP_OBJECT_REPR(stop), "offset", 0.0);
487 Inkscape::XML::Node *child = SP_OBJECT_REPR(stop)->duplicate();
488 sp_repr_set_css_double(child, "offset", 1.0);
489 SP_OBJECT_REPR(gradient)->addChild(child, SP_OBJECT_REPR (stop));
490 }
491 }
493 static void
494 select_stop_in_list( GtkWidget *mnu, SPGradient *gradient, SPStop *new_stop)
495 {
496 int i = 0;
497 for ( SPObject *ochild = sp_object_first_child(SP_OBJECT(gradient)) ; ochild != NULL ; ochild = SP_OBJECT_NEXT(ochild) ) {
498 if (SP_IS_STOP (ochild)) {
499 if (SP_OBJECT (ochild) == SP_OBJECT(new_stop)) {
500 gtk_option_menu_set_history (GTK_OPTION_MENU (mnu), i);
501 break;
502 }
503 i++;
504 }
505 }
506 }
508 static void
509 update_stop_list( GtkWidget *mnu, SPGradient *gradient, SPStop *new_stop)
510 {
512 if (!SP_IS_GRADIENT (gradient))
513 return;
515 blocked = TRUE;
517 /* Clear old menu, if there is any */
518 if (gtk_option_menu_get_menu (GTK_OPTION_MENU (mnu))) {
519 gtk_option_menu_remove_menu (GTK_OPTION_MENU (mnu));
520 }
522 /* Create new menu widget */
523 GtkWidget *m = gtk_menu_new ();
524 gtk_widget_show (m);
525 GSList *sl = NULL;
526 if (gradient->has_stops) {
527 for ( SPObject *ochild = sp_object_first_child (SP_OBJECT(gradient)) ; ochild != NULL ; ochild = SP_OBJECT_NEXT(ochild) ) {
528 if (SP_IS_STOP (ochild)) {
529 sl = g_slist_append (sl, ochild);
530 }
531 }
532 }
533 if (!sl) {
534 GtkWidget *i = gtk_menu_item_new_with_label (_("No stops in gradient"));
535 gtk_widget_show (i);
536 gtk_menu_append (GTK_MENU (m), i);
537 gtk_widget_set_sensitive (mnu, FALSE);
538 } else {
540 for (; sl != NULL; sl = sl->next){
541 SPStop *stop;
542 GtkWidget *i;
543 if (SP_IS_STOP(sl->data)){
544 stop = SP_STOP (sl->data);
545 i = gtk_menu_item_new ();
546 gtk_widget_show (i);
547 g_object_set_data (G_OBJECT (i), "stop", stop);
548 GtkWidget *hb = gtk_hbox_new (FALSE, 4);
549 GtkWidget *cpv = sp_color_preview_new(sp_stop_get_rgba32(stop));
550 gtk_widget_show (cpv);
551 gtk_container_add ( GTK_CONTAINER (hb), cpv );
552 g_object_set_data ( G_OBJECT (i), "preview", cpv );
553 Inkscape::XML::Node *repr = SP_OBJECT_REPR((SPItem *) sl->data);
554 GtkWidget *l = gtk_label_new (repr->attribute("id"));
555 gtk_widget_show (l);
556 gtk_misc_set_alignment (GTK_MISC (l), 1.0, 0.5);
557 gtk_box_pack_start (GTK_BOX (hb), l, TRUE, TRUE, 0);
558 gtk_widget_show (hb);
559 gtk_container_add (GTK_CONTAINER (i), hb);
560 gtk_menu_append (GTK_MENU (m), i);
561 }
562 }
564 gtk_widget_set_sensitive (mnu, TRUE);
565 }
566 gtk_option_menu_set_menu (GTK_OPTION_MENU (mnu), m);
568 /* Set history */
569 if (new_stop == NULL) {
570 gtk_option_menu_set_history (GTK_OPTION_MENU (mnu), 0);
571 } else {
572 select_stop_in_list (mnu, gradient, new_stop);
573 }
575 blocked = FALSE;
576 }
579 /*user selected existing stop from list*/
580 static void
581 sp_grad_edit_select (GtkOptionMenu *mnu, GtkWidget *tbl)
582 {
583 SPGradient *gradient = (SPGradient *)g_object_get_data (G_OBJECT(tbl), "gradient");
585 GObject *item = G_OBJECT(gtk_menu_get_active (GTK_MENU(gtk_option_menu_get_menu (mnu))));
586 SPStop *stop = SP_STOP (g_object_get_data (item, "stop"));
587 if (!stop) return;
589 blocked = TRUE;
591 SPColorSelector *csel = (SPColorSelector*)g_object_get_data (G_OBJECT (tbl), "cselector");
592 guint32 const c = sp_stop_get_rgba32(stop);
593 csel->base->setAlpha(SP_RGBA32_A_F (c));
594 SPColor color;
595 sp_color_set_rgb_float (&color, SP_RGBA32_R_F (c), SP_RGBA32_G_F (c), SP_RGBA32_B_F (c));
596 // set its color, from the stored array
597 csel->base->setColor( color );
598 GtkWidget *offspin = GTK_WIDGET (g_object_get_data (G_OBJECT (tbl), "offspn"));
599 GtkWidget *offslide =GTK_WIDGET (g_object_get_data (G_OBJECT (tbl), "offslide"));
601 GtkAdjustment *adj = (GtkAdjustment*)gtk_object_get_data (GTK_OBJECT (tbl), "offset");
603 bool isEndStop = false;
605 SPStop *prev = NULL;
606 prev = sp_prev_stop(stop, gradient);
607 if (prev != NULL ) {
608 adj->lower = prev->offset;
609 } else {
610 isEndStop = true;
611 adj->lower = 0;
612 }
614 SPStop *next = NULL;
615 next = sp_next_stop(stop);
616 if (next != NULL ) {
617 adj->upper = next->offset;
618 } else {
619 isEndStop = true;
620 adj->upper = 1.0;
621 }
623 //fixme: does this work on all possible input gradients?
624 if (!isEndStop) {
625 gtk_widget_set_sensitive (offslide, TRUE);
626 gtk_widget_set_sensitive (GTK_WIDGET (offspin), TRUE);
627 } else {
628 gtk_widget_set_sensitive (offslide, FALSE);
629 gtk_widget_set_sensitive (GTK_WIDGET (offspin), FALSE);
630 }
632 gtk_adjustment_set_value (adj, stop->offset);
634 gtk_adjustment_changed (adj);
636 blocked = FALSE;
637 }
642 static void
643 offadjustmentChanged( GtkAdjustment *adjustment, GtkWidget *vb)
644 {
645 if (blocked)
646 return;
648 blocked = TRUE;
650 GtkOptionMenu *mnu = (GtkOptionMenu *)g_object_get_data (G_OBJECT(vb), "stopmenu");
651 if (!g_object_get_data (G_OBJECT(gtk_menu_get_active (GTK_MENU(gtk_option_menu_get_menu (mnu)))), "stop")) return;
652 SPStop *stop = SP_STOP(g_object_get_data (G_OBJECT(gtk_menu_get_active (GTK_MENU(gtk_option_menu_get_menu (mnu)))), "stop"));
654 stop->offset = adjustment->value;
655 sp_repr_set_css_double(SP_OBJECT_REPR(stop), "offset", stop->offset);
657 sp_document_done (SP_OBJECT_DOCUMENT (stop), SP_VERB_CONTEXT_GRADIENT,
658 /* TODO: annotate */ "gradient-vector.cpp:642");
660 blocked = FALSE;
661 }
663 guint32
664 sp_average_color (guint32 c1, guint32 c2, gdouble p = 0.5)
665 {
666 guint32 r = (guint32) (SP_RGBA32_R_U (c1) * p + SP_RGBA32_R_U (c2) * (1 - p));
667 guint32 g = (guint32) (SP_RGBA32_G_U (c1) * p + SP_RGBA32_G_U (c2) * (1 - p));
668 guint32 b = (guint32) (SP_RGBA32_B_U (c1) * p + SP_RGBA32_B_U (c2) * (1 - p));
669 guint32 a = (guint32) (SP_RGBA32_A_U (c1) * p + SP_RGBA32_A_U (c2) * (1 - p));
671 return SP_RGBA32_U_COMPOSE (r, g, b, a);
672 }
675 static void
676 sp_grd_ed_add_stop (GtkWidget *widget, GtkWidget *vb)
677 {
678 SPGradient *gradient = (SPGradient *) g_object_get_data (G_OBJECT(vb), "gradient");
679 verify_grad (gradient);
680 GtkOptionMenu *mnu = (GtkOptionMenu *)g_object_get_data (G_OBJECT(vb), "stopmenu");
682 SPStop *stop = (SPStop *) g_object_get_data (G_OBJECT(gtk_menu_get_active (GTK_MENU(gtk_option_menu_get_menu (mnu)))), "stop");
684 if (stop == NULL)
685 return;
687 Inkscape::XML::Node *new_stop_repr = NULL;
689 SPStop *next = sp_next_stop (stop);
691 if (next == NULL) {
692 SPStop *prev = sp_prev_stop (stop, gradient);
693 if (prev != NULL) {
694 next = stop;
695 stop = prev;
696 }
697 }
699 if (next != NULL) {
700 new_stop_repr = SP_OBJECT_REPR(stop)->duplicate();
701 SP_OBJECT_REPR(gradient)->addChild(new_stop_repr, SP_OBJECT_REPR(stop));
702 } else {
703 next = stop;
704 new_stop_repr = SP_OBJECT_REPR(sp_prev_stop(stop, gradient))->duplicate();
705 SP_OBJECT_REPR(gradient)->addChild(new_stop_repr, SP_OBJECT_REPR(sp_prev_stop(stop, gradient)));
706 }
708 SPStop *newstop = (SPStop *) SP_OBJECT_DOCUMENT(gradient)->getObjectByRepr(new_stop_repr);
710 newstop->offset = (stop->offset + next->offset) * 0.5 ;
712 guint32 const c1 = sp_stop_get_rgba32(stop);
713 guint32 const c2 = sp_stop_get_rgba32(next);
714 guint32 cnew = sp_average_color (c1, c2);
716 Inkscape::CSSOStringStream os;
717 gchar c[64];
718 sp_svg_write_color (c, 64, cnew);
719 gdouble opacity = (gdouble) SP_RGBA32_A_F (cnew);
720 os << "stop-color:" << c << ";stop-opacity:" << opacity <<";";
721 SP_OBJECT_REPR (newstop)->setAttribute("style", os.str().c_str());
723 sp_gradient_vector_widget_load_gradient (vb, gradient);
724 Inkscape::GC::release(new_stop_repr);
725 update_stop_list(GTK_WIDGET(mnu), gradient, newstop);
726 GtkWidget *offspin = GTK_WIDGET (g_object_get_data (G_OBJECT (vb), "offspn"));
727 GtkWidget *offslide =GTK_WIDGET (g_object_get_data (G_OBJECT (vb), "offslide"));
728 gtk_widget_set_sensitive (offslide, TRUE);
729 gtk_widget_set_sensitive (GTK_WIDGET (offspin), TRUE);
730 sp_document_done (SP_OBJECT_DOCUMENT (gradient), SP_VERB_CONTEXT_GRADIENT,
731 /* TODO: annotate */ "gradient-vector.cpp:715");
732 }
734 static void
735 sp_grd_ed_del_stop (GtkWidget *widget, GtkWidget *vb)
736 {
737 SPGradient *gradient = (SPGradient *)g_object_get_data (G_OBJECT(vb), "gradient");
739 GtkOptionMenu *mnu = (GtkOptionMenu *)g_object_get_data (G_OBJECT(vb), "stopmenu");
740 if (!g_object_get_data (G_OBJECT(gtk_menu_get_active (GTK_MENU(gtk_option_menu_get_menu (mnu)))), "stop")) return;
741 SPStop *stop = SP_STOP(g_object_get_data (G_OBJECT(gtk_menu_get_active (GTK_MENU(gtk_option_menu_get_menu (mnu)))), "stop"));
742 if (gradient->vector.stops.size() > 2) { // 2 is the minimum
744 // if we delete first or last stop, move the next/previous to the edge
745 if (stop->offset == 0) {
746 SPStop *next = sp_next_stop (stop);
747 if (next) {
748 next->offset = 0;
749 sp_repr_set_css_double (SP_OBJECT_REPR (next), "offset", 0);
750 }
751 } else if (stop->offset == 1) {
752 SPStop *prev = sp_prev_stop (stop, gradient);
753 if (prev) {
754 prev->offset = 1;
755 sp_repr_set_css_double (SP_OBJECT_REPR (prev), "offset", 1);
756 }
757 }
759 SP_OBJECT_REPR(gradient)->removeChild(SP_OBJECT_REPR(stop));
760 sp_gradient_vector_widget_load_gradient (vb, gradient);
761 update_stop_list(GTK_WIDGET(mnu), gradient, NULL);
762 sp_document_done (SP_OBJECT_DOCUMENT (gradient), SP_VERB_CONTEXT_GRADIENT,
763 /* TODO: annotate */ "gradient-vector.cpp:747");
764 }
766 }
768 static GtkWidget *
769 sp_gradient_vector_widget_new (SPGradient *gradient, SPStop *select_stop)
770 {
771 GtkWidget *vb, *w, *f, *csel;
773 g_return_val_if_fail (!gradient || SP_IS_GRADIENT (gradient), NULL);
775 vb = gtk_vbox_new (FALSE, PAD);
776 g_signal_connect (G_OBJECT (vb), "destroy", G_CALLBACK (sp_gradient_vector_widget_destroy), NULL);
778 w = sp_gradient_image_new (gradient);
779 g_object_set_data (G_OBJECT (vb), "preview", w);
780 gtk_widget_show (w);
781 gtk_box_pack_start (GTK_BOX (vb), w, TRUE, TRUE, PAD);
783 gtk_object_set_data (GTK_OBJECT (vb), "gradient", gradient);
784 sp_repr_add_listener (SP_OBJECT_REPR(gradient), &grad_edit_dia_repr_events, vb);
785 GtkTooltips *tt = gtk_tooltips_new ();
787 /* Stop list */
788 GtkWidget *mnu = gtk_option_menu_new ();
789 /* Create new menu widget */
790 update_stop_list (GTK_WIDGET(mnu), gradient, NULL);
791 gtk_signal_connect (GTK_OBJECT (mnu), "changed", GTK_SIGNAL_FUNC (sp_grad_edit_select), vb);
792 gtk_widget_show (mnu);
793 gtk_object_set_data (GTK_OBJECT (vb), "stopmenu", mnu);
794 gtk_box_pack_start (GTK_BOX (vb), mnu, FALSE, FALSE, 0);
796 /* Add and Remove buttons */
797 GtkWidget *hb = gtk_hbox_new (FALSE, 1);
798 // TRANSLATORS: "Stop" means: a "phase" of a gradient
799 GtkWidget *b = gtk_button_new_with_label (_("Add stop"));
800 gtk_widget_show (b);
801 gtk_container_add (GTK_CONTAINER (hb), b);
802 gtk_tooltips_set_tip (tt, b, _("Add another control stop to gradient"), NULL);
803 gtk_signal_connect (GTK_OBJECT (b), "clicked", GTK_SIGNAL_FUNC (sp_grd_ed_add_stop), vb);
804 b = gtk_button_new_with_label (_("Delete stop"));
805 gtk_widget_show (b);
806 gtk_container_add (GTK_CONTAINER (hb), b);
807 gtk_tooltips_set_tip (tt, b, _("Delete current control stop from gradient"), NULL);
808 gtk_signal_connect (GTK_OBJECT (b), "clicked", GTK_SIGNAL_FUNC (sp_grd_ed_del_stop), vb);
810 gtk_widget_show (hb);
811 gtk_box_pack_start (GTK_BOX (vb),hb, FALSE, FALSE, AUX_BETWEEN_BUTTON_GROUPS);
814 /* Offset Slider and stuff */
815 hb = gtk_hbox_new (FALSE, 0);
817 /* Label */
818 GtkWidget *l = gtk_label_new (_("Offset:"));
819 gtk_misc_set_alignment (GTK_MISC (l), 1.0, 0.5);
820 gtk_box_pack_start (GTK_BOX (hb),l, FALSE, FALSE, AUX_BETWEEN_BUTTON_GROUPS);
821 gtk_widget_show (l);
823 /* Adjustment */
824 GtkAdjustment *Offset_adj = NULL;
825 Offset_adj= (GtkAdjustment *) gtk_adjustment_new (0.0, 0.0, 1.0, 0.01, 0.01, 0.0);
826 gtk_object_set_data (GTK_OBJECT (vb), "offset", Offset_adj);
827 GtkMenu *m = GTK_MENU(gtk_option_menu_get_menu (GTK_OPTION_MENU(mnu)));
828 SPStop *stop = SP_STOP (g_object_get_data (G_OBJECT (gtk_menu_get_active (m)), "stop"));
829 gtk_adjustment_set_value (Offset_adj, stop->offset);
831 /* Slider */
832 GtkWidget *slider = gtk_hscale_new(Offset_adj);
833 gtk_scale_set_draw_value( GTK_SCALE(slider), FALSE );
834 gtk_widget_show (slider);
835 gtk_box_pack_start (GTK_BOX (hb),slider, TRUE, TRUE, AUX_BETWEEN_BUTTON_GROUPS);
836 gtk_object_set_data (GTK_OBJECT (vb), "offslide", slider);
838 /* Spinbutton */
839 GtkWidget *sbtn = gtk_spin_button_new (GTK_ADJUSTMENT (Offset_adj), 0.01, 2);
840 sp_dialog_defocus_on_enter (sbtn);
841 gtk_widget_show (sbtn);
842 gtk_box_pack_start (GTK_BOX (hb),sbtn, FALSE, TRUE, AUX_BETWEEN_BUTTON_GROUPS);
843 gtk_object_set_data (GTK_OBJECT (vb), "offspn", sbtn);
845 if (stop->offset>0 && stop->offset<1) {
846 gtk_widget_set_sensitive (slider, TRUE);
847 gtk_widget_set_sensitive (GTK_WIDGET (sbtn), TRUE);
848 } else {
849 gtk_widget_set_sensitive (slider, FALSE);
850 gtk_widget_set_sensitive (GTK_WIDGET (sbtn), FALSE);
851 }
854 /* Signals */
855 gtk_signal_connect (GTK_OBJECT (Offset_adj), "value_changed",
856 GTK_SIGNAL_FUNC (offadjustmentChanged), vb);
858 // gtk_signal_connect (GTK_OBJECT (slider), "changed", GTK_SIGNAL_FUNC (offsliderChanged), vb);
859 gtk_widget_show (hb);
860 gtk_box_pack_start (GTK_BOX (vb), hb, FALSE, FALSE, PAD);
862 // TRANSLATORS: "Stop" means: a "phase" of a gradient
863 f = gtk_frame_new (_("Stop Color"));
864 gtk_widget_show (f);
865 gtk_box_pack_start (GTK_BOX (vb), f, TRUE, TRUE, PAD);
866 csel = (GtkWidget*)sp_color_selector_new (SP_TYPE_COLOR_NOTEBOOK, SP_COLORSPACE_TYPE_NONE);
867 g_object_set_data (G_OBJECT (vb), "cselector", csel);
868 gtk_widget_show (csel);
869 gtk_container_add (GTK_CONTAINER (f), csel);
870 g_signal_connect (G_OBJECT (csel), "dragged", G_CALLBACK (sp_gradient_vector_color_dragged), vb);
871 g_signal_connect (G_OBJECT (csel), "changed", G_CALLBACK (sp_gradient_vector_color_changed), vb);
873 gtk_widget_show (vb);
875 sp_gradient_vector_widget_load_gradient (vb, gradient);
877 if (select_stop)
878 select_stop_in_list (GTK_WIDGET(mnu), gradient, select_stop);
880 return vb;
881 }
885 GtkWidget *
886 sp_gradient_vector_editor_new (SPGradient *gradient, SPStop *stop)
887 {
888 GtkWidget *wid;
890 if (dlg == NULL) {
892 dlg = sp_window_new (_("Gradient editor"), TRUE);
893 if (x == -1000 || y == -1000) {
894 x = prefs_get_int_attribute (prefs_path, "x", 0);
895 y = prefs_get_int_attribute (prefs_path, "y", 0);
896 }
897 if (w ==0 || h == 0) {
898 w = prefs_get_int_attribute (prefs_path, "w", 0);
899 h = prefs_get_int_attribute (prefs_path, "h", 0);
900 }
902 if (x<0) x=0;
903 if (y<0) y=0;
905 if (x != 0 || y != 0)
906 gtk_window_move ((GtkWindow *) dlg, x, y);
907 else
908 gtk_window_set_position(GTK_WINDOW(dlg), GTK_WIN_POS_CENTER);
909 if (w && h) gtk_window_resize ((GtkWindow *) dlg, w, h);
910 sp_transientize (dlg);
911 wd.win = dlg;
912 wd.stop = 0;
913 g_signal_connect (G_OBJECT (INKSCAPE), "activate_desktop", G_CALLBACK (sp_transientize_callback), &wd);
914 gtk_signal_connect (GTK_OBJECT (dlg), "event", GTK_SIGNAL_FUNC (sp_dialog_event_handler), dlg);
915 gtk_signal_connect (GTK_OBJECT (dlg), "destroy", G_CALLBACK (sp_gradient_vector_dialog_destroy), dlg);
916 gtk_signal_connect (GTK_OBJECT (dlg), "delete_event", G_CALLBACK (sp_gradient_vector_dialog_delete), dlg);
917 g_signal_connect (G_OBJECT (INKSCAPE), "shut_down", G_CALLBACK (sp_gradient_vector_dialog_delete), dlg);
918 g_signal_connect ( G_OBJECT (INKSCAPE), "dialogs_hide", G_CALLBACK (sp_dialog_hide), dlg );
919 g_signal_connect ( G_OBJECT (INKSCAPE), "dialogs_unhide", G_CALLBACK (sp_dialog_unhide), dlg );
921 gtk_container_set_border_width (GTK_CONTAINER (dlg), PAD);
923 wid = (GtkWidget*)sp_gradient_vector_widget_new (gradient, stop);
924 g_object_set_data (G_OBJECT (dlg), "gradient-vector-widget", wid);
925 /* Connect signals */
926 gtk_widget_show (wid);
927 gtk_container_add (GTK_CONTAINER (dlg), wid);
928 } else {
929 // FIXME: temp fix for 0.38
930 // Simply load_gradient into the editor does not work for multi-stop gradients,
931 // as the stop list and other widgets are in a wrong state and crash readily.
932 // Instead we just delete the window (by sending the delete signal)
933 // and call sp_gradient_vector_editor_new again, so it creates the window anew.
935 GdkEventAny event;
936 GtkWidget *widget = (GtkWidget *) dlg;
937 event.type = GDK_DELETE;
938 event.window = widget->window;
939 event.send_event = TRUE;
940 g_object_ref (G_OBJECT (event.window));
941 gtk_main_do_event ((GdkEvent*)&event);
942 g_object_unref (G_OBJECT (event.window));
944 g_assert (dlg == NULL);
945 sp_gradient_vector_editor_new (gradient, stop);
946 }
948 return dlg;
949 }
951 static void
952 sp_gradient_vector_widget_load_gradient (GtkWidget *widget, SPGradient *gradient)
953 {
954 blocked = TRUE;
956 SPGradient *old;
958 old = (SPGradient*)g_object_get_data (G_OBJECT (widget), "gradient");
960 if (old != gradient) {
961 sigc::connection *release_connection;
962 sigc::connection *modified_connection;
964 release_connection = (sigc::connection *)g_object_get_data(G_OBJECT(widget), "gradient_release_connection");
965 modified_connection = (sigc::connection *)g_object_get_data(G_OBJECT(widget), "gradient_modified_connection");
967 if (old) {
968 g_assert( release_connection != NULL );
969 g_assert( modified_connection != NULL );
970 release_connection->disconnect();
971 modified_connection->disconnect();
972 sp_signal_disconnect_by_data (old, widget);
973 }
975 if (gradient) {
976 if (!release_connection) {
977 release_connection = new sigc::connection();
978 }
979 if (!modified_connection) {
980 modified_connection = new sigc::connection();
981 }
982 *release_connection = gradient->connectRelease(sigc::bind<1>(sigc::ptr_fun(&sp_gradient_vector_gradient_release), widget));
983 *modified_connection = gradient->connectModified(sigc::bind<2>(sigc::ptr_fun(&sp_gradient_vector_gradient_modified), widget));
984 } else {
985 if (release_connection) {
986 delete release_connection;
987 release_connection = NULL;
988 }
989 if (modified_connection) {
990 delete modified_connection;
991 modified_connection = NULL;
992 }
993 }
995 g_object_set_data(G_OBJECT(widget), "gradient_release_connection", release_connection);
996 g_object_set_data(G_OBJECT(widget), "gradient_modified_connection", modified_connection);
997 }
999 g_object_set_data (G_OBJECT (widget), "gradient", gradient);
1001 if (gradient) {
1002 sp_gradient_ensure_vector (gradient);
1004 GtkOptionMenu *mnu = (GtkOptionMenu *)g_object_get_data (G_OBJECT(widget), "stopmenu");
1005 SPStop *stop = SP_STOP(g_object_get_data (G_OBJECT(gtk_menu_get_active (GTK_MENU(gtk_option_menu_get_menu (mnu)))), "stop"));
1006 guint32 const c = sp_stop_get_rgba32(stop);
1008 /// get the color selector
1009 SPColorSelector *csel = SP_COLOR_SELECTOR(g_object_get_data (G_OBJECT (widget), "cselector"));
1010 // set alpha
1011 csel->base->setAlpha(SP_RGBA32_A_F (c));
1012 SPColor color;
1013 sp_color_set_rgb_float (&color, SP_RGBA32_R_F (c), SP_RGBA32_G_F (c), SP_RGBA32_B_F (c));
1014 // set color
1015 csel->base->setColor( color );
1016 }
1018 /* Fill preview */
1019 GtkWidget *w = static_cast<GtkWidget *>(g_object_get_data(G_OBJECT(widget), "preview"));
1020 sp_gradient_image_set_gradient (SP_GRADIENT_IMAGE (w), gradient);
1022 GtkWidget *mnu = static_cast<GtkWidget *>(g_object_get_data(G_OBJECT(widget), "stopmenu"));
1023 update_stop_list (GTK_WIDGET(mnu), gradient, NULL);
1025 // Once the user edits a gradient, it stops being auto-collectable
1026 if (SP_OBJECT_REPR(gradient)->attribute("inkscape:collect")) {
1027 SPDocument *document = SP_OBJECT_DOCUMENT (gradient);
1028 bool saved = sp_document_get_undo_sensitive(document);
1029 sp_document_set_undo_sensitive (document, FALSE);
1030 SP_OBJECT_REPR(gradient)->setAttribute("inkscape:collect", NULL);
1031 sp_document_set_undo_sensitive (document, saved);
1032 }
1034 blocked = FALSE;
1035 }
1037 static void
1038 sp_gradient_vector_dialog_destroy (GtkObject *object, gpointer data)
1039 {
1040 sp_signal_disconnect_by_data (INKSCAPE, dlg);
1041 wd.win = dlg = NULL;
1042 wd.stop = 0;
1043 }
1045 static bool
1046 sp_gradient_vector_dialog_delete (GtkWidget *widget, GdkEvent *event, GtkWidget *dialog)
1047 {
1048 gtk_window_get_position ((GtkWindow *) dlg, &x, &y);
1049 gtk_window_get_size ((GtkWindow *) dlg, &w, &h);
1051 if (x<0) x=0;
1052 if (y<0) y=0;
1054 prefs_set_int_attribute (prefs_path, "x", x);
1055 prefs_set_int_attribute (prefs_path, "y", y);
1056 prefs_set_int_attribute (prefs_path, "w", w);
1057 prefs_set_int_attribute (prefs_path, "h", h);
1059 return FALSE; // which means, go ahead and destroy it
1060 }
1062 /* Widget destroy handler */
1064 static void
1065 sp_gradient_vector_widget_destroy (GtkObject *object, gpointer data)
1066 {
1067 GObject *gradient;
1069 gradient = (GObject*)g_object_get_data (G_OBJECT (object), "gradient");
1071 if (gradient && SP_OBJECT_REPR(gradient)) {
1072 /* Remove signals connected to us */
1073 /* fixme: may use _connect_while_alive as well */
1074 sp_signal_disconnect_by_data (gradient, object);
1075 sp_repr_remove_listener_by_data (SP_OBJECT_REPR(gradient), object);
1076 }
1077 }
1079 static void
1080 sp_gradient_vector_gradient_release (SPObject *object, GtkWidget *widget)
1081 {
1082 sp_gradient_vector_widget_load_gradient (widget, NULL);
1083 }
1085 static void
1086 sp_gradient_vector_gradient_modified (SPObject *object, guint flags, GtkWidget *widget)
1087 {
1088 SPGradient *gradient=SP_GRADIENT(object);
1089 if (!blocked) {
1090 blocked = TRUE;
1091 sp_gradient_vector_widget_load_gradient (widget, gradient);
1092 blocked = FALSE;
1093 }
1094 }
1096 static void sp_gradient_vector_color_dragged(SPColorSelector *csel, GtkObject *object)
1097 {
1098 SPGradient *gradient, *ngr;
1100 if (blocked) return;
1102 gradient = (SPGradient*)g_object_get_data (G_OBJECT (object), "gradient");
1103 if (!gradient) return;
1105 blocked = TRUE;
1107 ngr = sp_gradient_ensure_vector_normalized (gradient);
1108 if (ngr != gradient) {
1109 /* Our master gradient has changed */
1110 sp_gradient_vector_widget_load_gradient (GTK_WIDGET (object), ngr);
1111 }
1113 sp_gradient_ensure_vector (ngr);
1115 GtkOptionMenu *mnu = (GtkOptionMenu *)g_object_get_data (G_OBJECT(object), "stopmenu");
1116 SPStop *stop = SP_STOP(g_object_get_data (G_OBJECT(gtk_menu_get_active (GTK_MENU(gtk_option_menu_get_menu (mnu)))), "stop"));
1119 csel->base->getColorAlpha(stop->specified_color, &stop->opacity);
1120 stop->currentColor = false;
1122 blocked = FALSE;
1123 SPColorPreview *cpv = (SPColorPreview *)g_object_get_data (G_OBJECT(gtk_menu_get_active (GTK_MENU(gtk_option_menu_get_menu (mnu)))), "preview");
1124 sp_color_preview_set_rgba32(cpv, sp_stop_get_rgba32(stop));
1126 }
1128 static void
1129 sp_gradient_vector_color_changed (SPColorSelector *csel, GtkObject *object)
1130 {
1131 SPColor color;
1132 float alpha;
1133 guint32 rgb;
1135 if (blocked) return;
1137 SPGradient *gradient = (SPGradient*)g_object_get_data (G_OBJECT (object), "gradient");
1138 if (!gradient) return;
1140 blocked = TRUE;
1142 SPGradient *ngr = sp_gradient_ensure_vector_normalized (gradient);
1143 if (ngr != gradient) {
1144 /* Our master gradient has changed */
1145 sp_gradient_vector_widget_load_gradient (GTK_WIDGET (object), ngr);
1146 }
1148 sp_gradient_ensure_vector (ngr);
1150 /* Set start parameters */
1151 /* We rely on normalized vector, i.e. stops HAVE to exist */
1152 g_return_if_fail (sp_first_stop(ngr) != NULL);
1154 GtkOptionMenu *mnu = (GtkOptionMenu *)g_object_get_data (G_OBJECT(object), "stopmenu");
1155 SPStop *stop = SP_STOP(g_object_get_data (G_OBJECT(gtk_menu_get_active (GTK_MENU(gtk_option_menu_get_menu (mnu)))), "stop"));
1157 csel = (SPColorSelector*)g_object_get_data (G_OBJECT (object), "cselector");
1158 csel->base->getColorAlpha( color, &alpha );
1159 rgb = sp_color_get_rgba32_ualpha (&color, 0x00);
1161 sp_repr_set_css_double (SP_OBJECT_REPR (stop), "offset", stop->offset);
1162 Inkscape::CSSOStringStream os;
1163 gchar c[64];
1164 sp_svg_write_color (c, 64, rgb);
1165 os << "stop-color:" << c << ";stop-opacity:" << (gdouble) alpha <<";";
1166 SP_OBJECT_REPR (stop)->setAttribute("style", os.str().c_str());
1167 // g_snprintf (c, 256, "stop-color:#%06x;stop-opacity:%g;", rgb >> 8, (gdouble) alpha);
1168 //SP_OBJECT_REPR (stop)->setAttribute("style", c);
1170 sp_document_done (SP_OBJECT_DOCUMENT (ngr), SP_VERB_CONTEXT_GRADIENT,
1171 /* TODO: annotate */ "gradient-vector.cpp:1124");
1173 blocked = FALSE;
1174 }