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 gboolean 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 // FIXME: looks like this is never a valid undo step, consider removing this
362 sp_document_done (SP_OBJECT_DOCUMENT (norm), SP_VERB_CONTEXT_GRADIENT,
363 /* TODO: annotate */ "gradient-vector.cpp:350");
364 }
365 }
367 static void
368 sp_gvs_gradient_release (SPObject *obj, SPGradientVectorSelector *gvs)
369 {
370 /* Disconnect gradient */
371 if (gvs->gr) {
372 gvs->gradient_release_connection.disconnect();
373 gvs->gr = NULL;
374 }
376 /* Rebuild GUI */
377 sp_gvs_rebuild_gui_full (gvs);
378 }
380 static void
381 sp_gvs_defs_release (SPObject *defs, SPGradientVectorSelector *gvs)
382 {
383 gvs->doc = NULL;
385 gvs->defs_release_connection.disconnect();
386 gvs->defs_modified_connection.disconnect();
388 /* Disconnect gradient as well */
389 if (gvs->gr) {
390 gvs->gradient_release_connection.disconnect();
391 gvs->gr = NULL;
392 }
394 /* Rebuild GUI */
395 sp_gvs_rebuild_gui_full (gvs);
396 }
398 static void
399 sp_gvs_defs_modified (SPObject *defs, guint flags, SPGradientVectorSelector *gvs)
400 {
401 /* fixme: We probably have to check some flags here (Lauris) */
403 sp_gvs_rebuild_gui_full (gvs);
404 }
406 /*##################################################################
407 ### Vector Editing Widget
408 ##################################################################*/
410 #include "../widgets/sp-color-notebook.h"
411 #include "../widgets/sp-color-preview.h"
412 #include "../widgets/widget-sizes.h"
413 #include "../xml/node-event-vector.h"
414 #include "../svg/svg-color.h"
417 #define PAD 4
419 static GtkWidget *sp_gradient_vector_widget_new (SPGradient *gradient, SPStop *stop);
421 static void sp_gradient_vector_widget_load_gradient (GtkWidget *widget, SPGradient *gradient);
422 static gint sp_gradient_vector_dialog_delete (GtkWidget *widget, GdkEvent *event, GtkWidget *dialog);
423 static void sp_gradient_vector_dialog_destroy (GtkObject *object, gpointer data);
425 static void sp_gradient_vector_widget_destroy (GtkObject *object, gpointer data);
426 static void sp_gradient_vector_gradient_release (SPObject *obj, GtkWidget *widget);
427 static void sp_gradient_vector_gradient_modified (SPObject *obj, guint flags, GtkWidget *widget);
428 static void sp_gradient_vector_color_dragged (SPColorSelector *csel, GtkObject *object);
429 static void sp_gradient_vector_color_changed (SPColorSelector *csel, GtkObject *object);
430 static void update_stop_list( GtkWidget *mnu, SPGradient *gradient, SPStop *new_stop);
432 static gboolean blocked = FALSE;
434 static void grad_edit_dia_stop_added_or_removed (Inkscape::XML::Node *repr, Inkscape::XML::Node *child, Inkscape::XML::Node *ref, gpointer data)
435 {
436 GtkWidget *vb = GTK_WIDGET(data);
437 GtkWidget *mnu = (GtkWidget *)g_object_get_data (G_OBJECT(vb), "stopmenu");
438 SPGradient *gradient = (SPGradient *)g_object_get_data (G_OBJECT(vb), "gradient");
439 update_stop_list (mnu, gradient, NULL);
440 }
442 //FIXME!!! We must also listen to attr changes on all children (i.e. stops) too,
443 //otherwise the dialog does not reflect undoing color or offset change. This is a major
444 //hassle, unless we have a "one of the descendants changed in some way" signal.
445 static Inkscape::XML::NodeEventVector grad_edit_dia_repr_events =
446 {
447 grad_edit_dia_stop_added_or_removed, /* child_added */
448 grad_edit_dia_stop_added_or_removed, /* child_removed */
449 NULL, /* attr_changed*/
450 NULL, /* content_changed */
451 NULL /* order_changed */
452 };
454 static void
455 verify_grad(SPGradient *gradient)
456 {
457 int i = 0;
458 SPStop *stop = NULL;
459 /* count stops */
460 for ( SPObject *ochild = sp_object_first_child(SP_OBJECT(gradient)) ; ochild != NULL ; ochild = SP_OBJECT_NEXT(ochild) ) {
461 if (SP_IS_STOP (ochild)) {
462 i++;
463 stop = SP_STOP(ochild);
464 }
465 }
467 if (i < 1) {
468 gchar c[64];
469 sp_svg_write_color (c, 64, 0x00000000);
471 Inkscape::CSSOStringStream os;
472 os << "stop-color:" << c << ";stop-opacity:" << 1.0 << ";";
474 Inkscape::XML::Node *child;
476 child = sp_repr_new ("svg:stop");
477 sp_repr_set_css_double(child, "offset", 0.0);
478 child->setAttribute("style", os.str().c_str());
479 SP_OBJECT_REPR (gradient)->addChild(child, NULL);
481 child = sp_repr_new ("svg:stop");
482 sp_repr_set_css_double(child, "offset", 1.0);
483 child->setAttribute("style", os.str().c_str());
484 SP_OBJECT_REPR (gradient)->addChild(child, NULL);
485 }
486 if (i < 2) {
487 sp_repr_set_css_double(SP_OBJECT_REPR(stop), "offset", 0.0);
488 Inkscape::XML::Node *child = SP_OBJECT_REPR(stop)->duplicate();
489 sp_repr_set_css_double(child, "offset", 1.0);
490 SP_OBJECT_REPR(gradient)->addChild(child, SP_OBJECT_REPR (stop));
491 }
492 }
494 static void
495 select_stop_in_list( GtkWidget *mnu, SPGradient *gradient, SPStop *new_stop)
496 {
497 int i = 0;
498 for ( SPObject *ochild = sp_object_first_child(SP_OBJECT(gradient)) ; ochild != NULL ; ochild = SP_OBJECT_NEXT(ochild) ) {
499 if (SP_IS_STOP (ochild)) {
500 if (SP_OBJECT (ochild) == SP_OBJECT(new_stop)) {
501 gtk_option_menu_set_history (GTK_OPTION_MENU (mnu), i);
502 break;
503 }
504 i++;
505 }
506 }
507 }
509 static void
510 update_stop_list( GtkWidget *mnu, SPGradient *gradient, SPStop *new_stop)
511 {
513 if (!SP_IS_GRADIENT (gradient))
514 return;
516 blocked = TRUE;
518 /* Clear old menu, if there is any */
519 if (gtk_option_menu_get_menu (GTK_OPTION_MENU (mnu))) {
520 gtk_option_menu_remove_menu (GTK_OPTION_MENU (mnu));
521 }
523 /* Create new menu widget */
524 GtkWidget *m = gtk_menu_new ();
525 gtk_widget_show (m);
526 GSList *sl = NULL;
527 if (gradient->has_stops) {
528 for ( SPObject *ochild = sp_object_first_child (SP_OBJECT(gradient)) ; ochild != NULL ; ochild = SP_OBJECT_NEXT(ochild) ) {
529 if (SP_IS_STOP (ochild)) {
530 sl = g_slist_append (sl, ochild);
531 }
532 }
533 }
534 if (!sl) {
535 GtkWidget *i = gtk_menu_item_new_with_label (_("No stops in gradient"));
536 gtk_widget_show (i);
537 gtk_menu_append (GTK_MENU (m), i);
538 gtk_widget_set_sensitive (mnu, FALSE);
539 } else {
541 for (; sl != NULL; sl = sl->next){
542 SPStop *stop;
543 GtkWidget *i;
544 if (SP_IS_STOP(sl->data)){
545 stop = SP_STOP (sl->data);
546 i = gtk_menu_item_new ();
547 gtk_widget_show (i);
548 g_object_set_data (G_OBJECT (i), "stop", stop);
549 GtkWidget *hb = gtk_hbox_new (FALSE, 4);
550 GtkWidget *cpv = sp_color_preview_new(sp_stop_get_rgba32(stop));
551 gtk_widget_show (cpv);
552 gtk_container_add ( GTK_CONTAINER (hb), cpv );
553 g_object_set_data ( G_OBJECT (i), "preview", cpv );
554 Inkscape::XML::Node *repr = SP_OBJECT_REPR((SPItem *) sl->data);
555 GtkWidget *l = gtk_label_new (repr->attribute("id"));
556 gtk_widget_show (l);
557 gtk_misc_set_alignment (GTK_MISC (l), 1.0, 0.5);
558 gtk_box_pack_start (GTK_BOX (hb), l, TRUE, TRUE, 0);
559 gtk_widget_show (hb);
560 gtk_container_add (GTK_CONTAINER (i), hb);
561 gtk_menu_append (GTK_MENU (m), i);
562 }
563 }
565 gtk_widget_set_sensitive (mnu, TRUE);
566 }
567 gtk_option_menu_set_menu (GTK_OPTION_MENU (mnu), m);
569 /* Set history */
570 if (new_stop == NULL) {
571 gtk_option_menu_set_history (GTK_OPTION_MENU (mnu), 0);
572 } else {
573 select_stop_in_list (mnu, gradient, new_stop);
574 }
576 blocked = FALSE;
577 }
580 /*user selected existing stop from list*/
581 static void
582 sp_grad_edit_select (GtkOptionMenu *mnu, GtkWidget *tbl)
583 {
584 SPGradient *gradient = (SPGradient *)g_object_get_data (G_OBJECT(tbl), "gradient");
586 GObject *item = G_OBJECT(gtk_menu_get_active (GTK_MENU(gtk_option_menu_get_menu (mnu))));
587 SPStop *stop = SP_STOP (g_object_get_data (item, "stop"));
588 if (!stop) return;
590 blocked = TRUE;
592 SPColorSelector *csel = (SPColorSelector*)g_object_get_data (G_OBJECT (tbl), "cselector");
593 guint32 const c = sp_stop_get_rgba32(stop);
594 csel->base->setAlpha(SP_RGBA32_A_F (c));
595 SPColor color;
596 sp_color_set_rgb_float (&color, SP_RGBA32_R_F (c), SP_RGBA32_G_F (c), SP_RGBA32_B_F (c));
597 // set its color, from the stored array
598 csel->base->setColor( color );
599 GtkWidget *offspin = GTK_WIDGET (g_object_get_data (G_OBJECT (tbl), "offspn"));
600 GtkWidget *offslide =GTK_WIDGET (g_object_get_data (G_OBJECT (tbl), "offslide"));
602 GtkAdjustment *adj = (GtkAdjustment*)gtk_object_get_data (GTK_OBJECT (tbl), "offset");
604 bool isEndStop = false;
606 SPStop *prev = NULL;
607 prev = sp_prev_stop(stop, gradient);
608 if (prev != NULL ) {
609 adj->lower = prev->offset;
610 } else {
611 isEndStop = true;
612 adj->lower = 0;
613 }
615 SPStop *next = NULL;
616 next = sp_next_stop(stop);
617 if (next != NULL ) {
618 adj->upper = next->offset;
619 } else {
620 isEndStop = true;
621 adj->upper = 1.0;
622 }
624 //fixme: does this work on all possible input gradients?
625 if (!isEndStop) {
626 gtk_widget_set_sensitive (offslide, TRUE);
627 gtk_widget_set_sensitive (GTK_WIDGET (offspin), TRUE);
628 } else {
629 gtk_widget_set_sensitive (offslide, FALSE);
630 gtk_widget_set_sensitive (GTK_WIDGET (offspin), FALSE);
631 }
633 gtk_adjustment_set_value (adj, stop->offset);
635 gtk_adjustment_changed (adj);
637 blocked = FALSE;
638 }
643 static void
644 offadjustmentChanged( GtkAdjustment *adjustment, GtkWidget *vb)
645 {
646 if (blocked)
647 return;
649 blocked = TRUE;
651 GtkOptionMenu *mnu = (GtkOptionMenu *)g_object_get_data (G_OBJECT(vb), "stopmenu");
652 if (!g_object_get_data (G_OBJECT(gtk_menu_get_active (GTK_MENU(gtk_option_menu_get_menu (mnu)))), "stop")) return;
653 SPStop *stop = SP_STOP(g_object_get_data (G_OBJECT(gtk_menu_get_active (GTK_MENU(gtk_option_menu_get_menu (mnu)))), "stop"));
655 stop->offset = adjustment->value;
656 sp_repr_set_css_double(SP_OBJECT_REPR(stop), "offset", stop->offset);
658 sp_document_done (SP_OBJECT_DOCUMENT (stop), SP_VERB_CONTEXT_GRADIENT,
659 _("Change gradient stop offset"));
661 blocked = FALSE;
662 }
664 guint32
665 sp_average_color (guint32 c1, guint32 c2, gdouble p = 0.5)
666 {
667 guint32 r = (guint32) (SP_RGBA32_R_U (c1) * p + SP_RGBA32_R_U (c2) * (1 - p));
668 guint32 g = (guint32) (SP_RGBA32_G_U (c1) * p + SP_RGBA32_G_U (c2) * (1 - p));
669 guint32 b = (guint32) (SP_RGBA32_B_U (c1) * p + SP_RGBA32_B_U (c2) * (1 - p));
670 guint32 a = (guint32) (SP_RGBA32_A_U (c1) * p + SP_RGBA32_A_U (c2) * (1 - p));
672 return SP_RGBA32_U_COMPOSE (r, g, b, a);
673 }
676 static void
677 sp_grd_ed_add_stop (GtkWidget *widget, GtkWidget *vb)
678 {
679 SPGradient *gradient = (SPGradient *) g_object_get_data (G_OBJECT(vb), "gradient");
680 verify_grad (gradient);
681 GtkOptionMenu *mnu = (GtkOptionMenu *)g_object_get_data (G_OBJECT(vb), "stopmenu");
683 SPStop *stop = (SPStop *) g_object_get_data (G_OBJECT(gtk_menu_get_active (GTK_MENU(gtk_option_menu_get_menu (mnu)))), "stop");
685 if (stop == NULL)
686 return;
688 Inkscape::XML::Node *new_stop_repr = NULL;
690 SPStop *next = sp_next_stop (stop);
692 if (next == NULL) {
693 SPStop *prev = sp_prev_stop (stop, gradient);
694 if (prev != NULL) {
695 next = stop;
696 stop = prev;
697 }
698 }
700 if (next != NULL) {
701 new_stop_repr = SP_OBJECT_REPR(stop)->duplicate();
702 SP_OBJECT_REPR(gradient)->addChild(new_stop_repr, SP_OBJECT_REPR(stop));
703 } else {
704 next = stop;
705 new_stop_repr = SP_OBJECT_REPR(sp_prev_stop(stop, gradient))->duplicate();
706 SP_OBJECT_REPR(gradient)->addChild(new_stop_repr, SP_OBJECT_REPR(sp_prev_stop(stop, gradient)));
707 }
709 SPStop *newstop = (SPStop *) SP_OBJECT_DOCUMENT(gradient)->getObjectByRepr(new_stop_repr);
711 newstop->offset = (stop->offset + next->offset) * 0.5 ;
713 guint32 const c1 = sp_stop_get_rgba32(stop);
714 guint32 const c2 = sp_stop_get_rgba32(next);
715 guint32 cnew = sp_average_color (c1, c2);
717 Inkscape::CSSOStringStream os;
718 gchar c[64];
719 sp_svg_write_color (c, 64, cnew);
720 gdouble opacity = (gdouble) SP_RGBA32_A_F (cnew);
721 os << "stop-color:" << c << ";stop-opacity:" << opacity <<";";
722 SP_OBJECT_REPR (newstop)->setAttribute("style", os.str().c_str());
724 sp_gradient_vector_widget_load_gradient (vb, gradient);
725 Inkscape::GC::release(new_stop_repr);
726 update_stop_list(GTK_WIDGET(mnu), gradient, newstop);
727 GtkWidget *offspin = GTK_WIDGET (g_object_get_data (G_OBJECT (vb), "offspn"));
728 GtkWidget *offslide =GTK_WIDGET (g_object_get_data (G_OBJECT (vb), "offslide"));
729 gtk_widget_set_sensitive (offslide, TRUE);
730 gtk_widget_set_sensitive (GTK_WIDGET (offspin), TRUE);
731 sp_document_done (SP_OBJECT_DOCUMENT (gradient), SP_VERB_CONTEXT_GRADIENT,
732 _("Add gradient stop"));
733 }
735 static void
736 sp_grd_ed_del_stop (GtkWidget *widget, GtkWidget *vb)
737 {
738 SPGradient *gradient = (SPGradient *)g_object_get_data (G_OBJECT(vb), "gradient");
740 GtkOptionMenu *mnu = (GtkOptionMenu *)g_object_get_data (G_OBJECT(vb), "stopmenu");
741 if (!g_object_get_data (G_OBJECT(gtk_menu_get_active (GTK_MENU(gtk_option_menu_get_menu (mnu)))), "stop")) return;
742 SPStop *stop = SP_STOP(g_object_get_data (G_OBJECT(gtk_menu_get_active (GTK_MENU(gtk_option_menu_get_menu (mnu)))), "stop"));
743 if (gradient->vector.stops.size() > 2) { // 2 is the minimum
745 // if we delete first or last stop, move the next/previous to the edge
746 if (stop->offset == 0) {
747 SPStop *next = sp_next_stop (stop);
748 if (next) {
749 next->offset = 0;
750 sp_repr_set_css_double (SP_OBJECT_REPR (next), "offset", 0);
751 }
752 } else if (stop->offset == 1) {
753 SPStop *prev = sp_prev_stop (stop, gradient);
754 if (prev) {
755 prev->offset = 1;
756 sp_repr_set_css_double (SP_OBJECT_REPR (prev), "offset", 1);
757 }
758 }
760 SP_OBJECT_REPR(gradient)->removeChild(SP_OBJECT_REPR(stop));
761 sp_gradient_vector_widget_load_gradient (vb, gradient);
762 update_stop_list(GTK_WIDGET(mnu), gradient, NULL);
763 sp_document_done (SP_OBJECT_DOCUMENT (gradient), SP_VERB_CONTEXT_GRADIENT,
764 _("Delete gradient stop"));
765 }
767 }
769 static GtkWidget *
770 sp_gradient_vector_widget_new (SPGradient *gradient, SPStop *select_stop)
771 {
772 GtkWidget *vb, *w, *f, *csel;
774 g_return_val_if_fail (!gradient || SP_IS_GRADIENT (gradient), NULL);
776 vb = gtk_vbox_new (FALSE, PAD);
777 g_signal_connect (G_OBJECT (vb), "destroy", G_CALLBACK (sp_gradient_vector_widget_destroy), NULL);
779 w = sp_gradient_image_new (gradient);
780 g_object_set_data (G_OBJECT (vb), "preview", w);
781 gtk_widget_show (w);
782 gtk_box_pack_start (GTK_BOX (vb), w, TRUE, TRUE, PAD);
784 gtk_object_set_data (GTK_OBJECT (vb), "gradient", gradient);
785 sp_repr_add_listener (SP_OBJECT_REPR(gradient), &grad_edit_dia_repr_events, vb);
786 GtkTooltips *tt = gtk_tooltips_new ();
788 /* Stop list */
789 GtkWidget *mnu = gtk_option_menu_new ();
790 /* Create new menu widget */
791 update_stop_list (GTK_WIDGET(mnu), gradient, NULL);
792 gtk_signal_connect (GTK_OBJECT (mnu), "changed", GTK_SIGNAL_FUNC (sp_grad_edit_select), vb);
793 gtk_widget_show (mnu);
794 gtk_object_set_data (GTK_OBJECT (vb), "stopmenu", mnu);
795 gtk_box_pack_start (GTK_BOX (vb), mnu, FALSE, FALSE, 0);
797 /* Add and Remove buttons */
798 GtkWidget *hb = gtk_hbox_new (FALSE, 1);
799 // TRANSLATORS: "Stop" means: a "phase" of a gradient
800 GtkWidget *b = gtk_button_new_with_label (_("Add stop"));
801 gtk_widget_show (b);
802 gtk_container_add (GTK_CONTAINER (hb), b);
803 gtk_tooltips_set_tip (tt, b, _("Add another control stop to gradient"), NULL);
804 gtk_signal_connect (GTK_OBJECT (b), "clicked", GTK_SIGNAL_FUNC (sp_grd_ed_add_stop), vb);
805 b = gtk_button_new_with_label (_("Delete stop"));
806 gtk_widget_show (b);
807 gtk_container_add (GTK_CONTAINER (hb), b);
808 gtk_tooltips_set_tip (tt, b, _("Delete current control stop from gradient"), NULL);
809 gtk_signal_connect (GTK_OBJECT (b), "clicked", GTK_SIGNAL_FUNC (sp_grd_ed_del_stop), vb);
811 gtk_widget_show (hb);
812 gtk_box_pack_start (GTK_BOX (vb),hb, FALSE, FALSE, AUX_BETWEEN_BUTTON_GROUPS);
815 /* Offset Slider and stuff */
816 hb = gtk_hbox_new (FALSE, 0);
818 /* Label */
819 GtkWidget *l = gtk_label_new (_("Offset:"));
820 gtk_misc_set_alignment (GTK_MISC (l), 1.0, 0.5);
821 gtk_box_pack_start (GTK_BOX (hb),l, FALSE, FALSE, AUX_BETWEEN_BUTTON_GROUPS);
822 gtk_widget_show (l);
824 /* Adjustment */
825 GtkAdjustment *Offset_adj = NULL;
826 Offset_adj= (GtkAdjustment *) gtk_adjustment_new (0.0, 0.0, 1.0, 0.01, 0.01, 0.0);
827 gtk_object_set_data (GTK_OBJECT (vb), "offset", Offset_adj);
828 GtkMenu *m = GTK_MENU(gtk_option_menu_get_menu (GTK_OPTION_MENU(mnu)));
829 SPStop *stop = SP_STOP (g_object_get_data (G_OBJECT (gtk_menu_get_active (m)), "stop"));
830 gtk_adjustment_set_value (Offset_adj, stop->offset);
832 /* Slider */
833 GtkWidget *slider = gtk_hscale_new(Offset_adj);
834 gtk_scale_set_draw_value( GTK_SCALE(slider), FALSE );
835 gtk_widget_show (slider);
836 gtk_box_pack_start (GTK_BOX (hb),slider, TRUE, TRUE, AUX_BETWEEN_BUTTON_GROUPS);
837 gtk_object_set_data (GTK_OBJECT (vb), "offslide", slider);
839 /* Spinbutton */
840 GtkWidget *sbtn = gtk_spin_button_new (GTK_ADJUSTMENT (Offset_adj), 0.01, 2);
841 sp_dialog_defocus_on_enter (sbtn);
842 gtk_widget_show (sbtn);
843 gtk_box_pack_start (GTK_BOX (hb),sbtn, FALSE, TRUE, AUX_BETWEEN_BUTTON_GROUPS);
844 gtk_object_set_data (GTK_OBJECT (vb), "offspn", sbtn);
846 if (stop->offset>0 && stop->offset<1) {
847 gtk_widget_set_sensitive (slider, TRUE);
848 gtk_widget_set_sensitive (GTK_WIDGET (sbtn), TRUE);
849 } else {
850 gtk_widget_set_sensitive (slider, FALSE);
851 gtk_widget_set_sensitive (GTK_WIDGET (sbtn), FALSE);
852 }
855 /* Signals */
856 gtk_signal_connect (GTK_OBJECT (Offset_adj), "value_changed",
857 GTK_SIGNAL_FUNC (offadjustmentChanged), vb);
859 // gtk_signal_connect (GTK_OBJECT (slider), "changed", GTK_SIGNAL_FUNC (offsliderChanged), vb);
860 gtk_widget_show (hb);
861 gtk_box_pack_start (GTK_BOX (vb), hb, FALSE, FALSE, PAD);
863 // TRANSLATORS: "Stop" means: a "phase" of a gradient
864 f = gtk_frame_new (_("Stop Color"));
865 gtk_widget_show (f);
866 gtk_box_pack_start (GTK_BOX (vb), f, TRUE, TRUE, PAD);
867 csel = (GtkWidget*)sp_color_selector_new (SP_TYPE_COLOR_NOTEBOOK, SP_COLORSPACE_TYPE_NONE);
868 g_object_set_data (G_OBJECT (vb), "cselector", csel);
869 gtk_widget_show (csel);
870 gtk_container_add (GTK_CONTAINER (f), csel);
871 g_signal_connect (G_OBJECT (csel), "dragged", G_CALLBACK (sp_gradient_vector_color_dragged), vb);
872 g_signal_connect (G_OBJECT (csel), "changed", G_CALLBACK (sp_gradient_vector_color_changed), vb);
874 gtk_widget_show (vb);
876 sp_gradient_vector_widget_load_gradient (vb, gradient);
878 if (select_stop)
879 select_stop_in_list (GTK_WIDGET(mnu), gradient, select_stop);
881 return vb;
882 }
886 GtkWidget *
887 sp_gradient_vector_editor_new (SPGradient *gradient, SPStop *stop)
888 {
889 GtkWidget *wid;
891 if (dlg == NULL) {
893 dlg = sp_window_new (_("Gradient editor"), TRUE);
894 if (x == -1000 || y == -1000) {
895 x = prefs_get_int_attribute (prefs_path, "x", 0);
896 y = prefs_get_int_attribute (prefs_path, "y", 0);
897 }
898 if (w ==0 || h == 0) {
899 w = prefs_get_int_attribute (prefs_path, "w", 0);
900 h = prefs_get_int_attribute (prefs_path, "h", 0);
901 }
903 if (x<0) x=0;
904 if (y<0) y=0;
906 if (x != 0 || y != 0)
907 gtk_window_move ((GtkWindow *) dlg, x, y);
908 else
909 gtk_window_set_position(GTK_WINDOW(dlg), GTK_WIN_POS_CENTER);
910 if (w && h) gtk_window_resize ((GtkWindow *) dlg, w, h);
911 sp_transientize (dlg);
912 wd.win = dlg;
913 wd.stop = 0;
914 g_signal_connect (G_OBJECT (INKSCAPE), "activate_desktop", G_CALLBACK (sp_transientize_callback), &wd);
915 gtk_signal_connect (GTK_OBJECT (dlg), "event", GTK_SIGNAL_FUNC (sp_dialog_event_handler), dlg);
916 gtk_signal_connect (GTK_OBJECT (dlg), "destroy", G_CALLBACK (sp_gradient_vector_dialog_destroy), dlg);
917 gtk_signal_connect (GTK_OBJECT (dlg), "delete_event", G_CALLBACK (sp_gradient_vector_dialog_delete), dlg);
918 g_signal_connect (G_OBJECT (INKSCAPE), "shut_down", G_CALLBACK (sp_gradient_vector_dialog_delete), dlg);
919 g_signal_connect ( G_OBJECT (INKSCAPE), "dialogs_hide", G_CALLBACK (sp_dialog_hide), dlg );
920 g_signal_connect ( G_OBJECT (INKSCAPE), "dialogs_unhide", G_CALLBACK (sp_dialog_unhide), dlg );
922 gtk_container_set_border_width (GTK_CONTAINER (dlg), PAD);
924 wid = (GtkWidget*)sp_gradient_vector_widget_new (gradient, stop);
925 g_object_set_data (G_OBJECT (dlg), "gradient-vector-widget", wid);
926 /* Connect signals */
927 gtk_widget_show (wid);
928 gtk_container_add (GTK_CONTAINER (dlg), wid);
929 } else {
930 // FIXME: temp fix for 0.38
931 // Simply load_gradient into the editor does not work for multi-stop gradients,
932 // as the stop list and other widgets are in a wrong state and crash readily.
933 // Instead we just delete the window (by sending the delete signal)
934 // and call sp_gradient_vector_editor_new again, so it creates the window anew.
936 GdkEventAny event;
937 GtkWidget *widget = (GtkWidget *) dlg;
938 event.type = GDK_DELETE;
939 event.window = widget->window;
940 event.send_event = TRUE;
941 g_object_ref (G_OBJECT (event.window));
942 gtk_main_do_event ((GdkEvent*)&event);
943 g_object_unref (G_OBJECT (event.window));
945 g_assert (dlg == NULL);
946 sp_gradient_vector_editor_new (gradient, stop);
947 }
949 return dlg;
950 }
952 static void
953 sp_gradient_vector_widget_load_gradient (GtkWidget *widget, SPGradient *gradient)
954 {
955 blocked = TRUE;
957 SPGradient *old;
959 old = (SPGradient*)g_object_get_data (G_OBJECT (widget), "gradient");
961 if (old != gradient) {
962 sigc::connection *release_connection;
963 sigc::connection *modified_connection;
965 release_connection = (sigc::connection *)g_object_get_data(G_OBJECT(widget), "gradient_release_connection");
966 modified_connection = (sigc::connection *)g_object_get_data(G_OBJECT(widget), "gradient_modified_connection");
968 if (old) {
969 g_assert( release_connection != NULL );
970 g_assert( modified_connection != NULL );
971 release_connection->disconnect();
972 modified_connection->disconnect();
973 sp_signal_disconnect_by_data (old, widget);
974 }
976 if (gradient) {
977 if (!release_connection) {
978 release_connection = new sigc::connection();
979 }
980 if (!modified_connection) {
981 modified_connection = new sigc::connection();
982 }
983 *release_connection = gradient->connectRelease(sigc::bind<1>(sigc::ptr_fun(&sp_gradient_vector_gradient_release), widget));
984 *modified_connection = gradient->connectModified(sigc::bind<2>(sigc::ptr_fun(&sp_gradient_vector_gradient_modified), widget));
985 } else {
986 if (release_connection) {
987 delete release_connection;
988 release_connection = NULL;
989 }
990 if (modified_connection) {
991 delete modified_connection;
992 modified_connection = NULL;
993 }
994 }
996 g_object_set_data(G_OBJECT(widget), "gradient_release_connection", release_connection);
997 g_object_set_data(G_OBJECT(widget), "gradient_modified_connection", modified_connection);
998 }
1000 g_object_set_data (G_OBJECT (widget), "gradient", gradient);
1002 if (gradient) {
1003 sp_gradient_ensure_vector (gradient);
1005 GtkOptionMenu *mnu = (GtkOptionMenu *)g_object_get_data (G_OBJECT(widget), "stopmenu");
1006 SPStop *stop = SP_STOP(g_object_get_data (G_OBJECT(gtk_menu_get_active (GTK_MENU(gtk_option_menu_get_menu (mnu)))), "stop"));
1007 guint32 const c = sp_stop_get_rgba32(stop);
1009 /// get the color selector
1010 SPColorSelector *csel = SP_COLOR_SELECTOR(g_object_get_data (G_OBJECT (widget), "cselector"));
1011 // set alpha
1012 csel->base->setAlpha(SP_RGBA32_A_F (c));
1013 SPColor color;
1014 sp_color_set_rgb_float (&color, SP_RGBA32_R_F (c), SP_RGBA32_G_F (c), SP_RGBA32_B_F (c));
1015 // set color
1016 csel->base->setColor( color );
1017 }
1019 /* Fill preview */
1020 GtkWidget *w = static_cast<GtkWidget *>(g_object_get_data(G_OBJECT(widget), "preview"));
1021 sp_gradient_image_set_gradient (SP_GRADIENT_IMAGE (w), gradient);
1023 GtkWidget *mnu = static_cast<GtkWidget *>(g_object_get_data(G_OBJECT(widget), "stopmenu"));
1024 update_stop_list (GTK_WIDGET(mnu), gradient, NULL);
1026 // Once the user edits a gradient, it stops being auto-collectable
1027 if (SP_OBJECT_REPR(gradient)->attribute("inkscape:collect")) {
1028 SPDocument *document = SP_OBJECT_DOCUMENT (gradient);
1029 bool saved = sp_document_get_undo_sensitive(document);
1030 sp_document_set_undo_sensitive (document, false);
1031 SP_OBJECT_REPR(gradient)->setAttribute("inkscape:collect", NULL);
1032 sp_document_set_undo_sensitive (document, saved);
1033 }
1035 blocked = FALSE;
1036 }
1038 static void
1039 sp_gradient_vector_dialog_destroy (GtkObject *object, gpointer data)
1040 {
1041 sp_signal_disconnect_by_data (INKSCAPE, dlg);
1042 wd.win = dlg = NULL;
1043 wd.stop = 0;
1044 }
1046 static gboolean
1047 sp_gradient_vector_dialog_delete (GtkWidget *widget, GdkEvent *event, GtkWidget *dialog)
1048 {
1049 gtk_window_get_position ((GtkWindow *) dlg, &x, &y);
1050 gtk_window_get_size ((GtkWindow *) dlg, &w, &h);
1052 if (x<0) x=0;
1053 if (y<0) y=0;
1055 prefs_set_int_attribute (prefs_path, "x", x);
1056 prefs_set_int_attribute (prefs_path, "y", y);
1057 prefs_set_int_attribute (prefs_path, "w", w);
1058 prefs_set_int_attribute (prefs_path, "h", h);
1060 return FALSE; // which means, go ahead and destroy it
1061 }
1063 /* Widget destroy handler */
1065 static void
1066 sp_gradient_vector_widget_destroy (GtkObject *object, gpointer data)
1067 {
1068 GObject *gradient;
1070 gradient = (GObject*)g_object_get_data (G_OBJECT (object), "gradient");
1072 if (gradient && SP_OBJECT_REPR(gradient)) {
1073 /* Remove signals connected to us */
1074 /* fixme: may use _connect_while_alive as well */
1075 sp_signal_disconnect_by_data (gradient, object);
1076 sp_repr_remove_listener_by_data (SP_OBJECT_REPR(gradient), object);
1077 }
1078 }
1080 static void
1081 sp_gradient_vector_gradient_release (SPObject *object, GtkWidget *widget)
1082 {
1083 sp_gradient_vector_widget_load_gradient (widget, NULL);
1084 }
1086 static void
1087 sp_gradient_vector_gradient_modified (SPObject *object, guint flags, GtkWidget *widget)
1088 {
1089 SPGradient *gradient=SP_GRADIENT(object);
1090 if (!blocked) {
1091 blocked = TRUE;
1092 sp_gradient_vector_widget_load_gradient (widget, gradient);
1093 blocked = FALSE;
1094 }
1095 }
1097 static void sp_gradient_vector_color_dragged(SPColorSelector *csel, GtkObject *object)
1098 {
1099 SPGradient *gradient, *ngr;
1101 if (blocked) return;
1103 gradient = (SPGradient*)g_object_get_data (G_OBJECT (object), "gradient");
1104 if (!gradient) return;
1106 blocked = TRUE;
1108 ngr = sp_gradient_ensure_vector_normalized (gradient);
1109 if (ngr != gradient) {
1110 /* Our master gradient has changed */
1111 sp_gradient_vector_widget_load_gradient (GTK_WIDGET (object), ngr);
1112 }
1114 sp_gradient_ensure_vector (ngr);
1116 GtkOptionMenu *mnu = (GtkOptionMenu *)g_object_get_data (G_OBJECT(object), "stopmenu");
1117 SPStop *stop = SP_STOP(g_object_get_data (G_OBJECT(gtk_menu_get_active (GTK_MENU(gtk_option_menu_get_menu (mnu)))), "stop"));
1120 csel->base->getColorAlpha(stop->specified_color, &stop->opacity);
1121 stop->currentColor = false;
1123 blocked = FALSE;
1124 SPColorPreview *cpv = (SPColorPreview *)g_object_get_data (G_OBJECT(gtk_menu_get_active (GTK_MENU(gtk_option_menu_get_menu (mnu)))), "preview");
1125 sp_color_preview_set_rgba32(cpv, sp_stop_get_rgba32(stop));
1127 }
1129 static void
1130 sp_gradient_vector_color_changed (SPColorSelector *csel, GtkObject *object)
1131 {
1132 SPColor color;
1133 float alpha;
1134 guint32 rgb;
1136 if (blocked) return;
1138 SPGradient *gradient = (SPGradient*)g_object_get_data (G_OBJECT (object), "gradient");
1139 if (!gradient) return;
1141 blocked = TRUE;
1143 SPGradient *ngr = sp_gradient_ensure_vector_normalized (gradient);
1144 if (ngr != gradient) {
1145 /* Our master gradient has changed */
1146 sp_gradient_vector_widget_load_gradient (GTK_WIDGET (object), ngr);
1147 }
1149 sp_gradient_ensure_vector (ngr);
1151 /* Set start parameters */
1152 /* We rely on normalized vector, i.e. stops HAVE to exist */
1153 g_return_if_fail (sp_first_stop(ngr) != NULL);
1155 GtkOptionMenu *mnu = (GtkOptionMenu *)g_object_get_data (G_OBJECT(object), "stopmenu");
1156 SPStop *stop = SP_STOP(g_object_get_data (G_OBJECT(gtk_menu_get_active (GTK_MENU(gtk_option_menu_get_menu (mnu)))), "stop"));
1158 csel = (SPColorSelector*)g_object_get_data (G_OBJECT (object), "cselector");
1159 csel->base->getColorAlpha( color, &alpha );
1160 rgb = sp_color_get_rgba32_ualpha (&color, 0x00);
1162 sp_repr_set_css_double (SP_OBJECT_REPR (stop), "offset", stop->offset);
1163 Inkscape::CSSOStringStream os;
1164 gchar c[64];
1165 sp_svg_write_color (c, 64, rgb);
1166 os << "stop-color:" << c << ";stop-opacity:" << (gdouble) alpha <<";";
1167 SP_OBJECT_REPR (stop)->setAttribute("style", os.str().c_str());
1168 // g_snprintf (c, 256, "stop-color:#%06x;stop-opacity:%g;", rgb >> 8, (gdouble) alpha);
1169 //SP_OBJECT_REPR (stop)->setAttribute("style", c);
1171 sp_document_done (SP_OBJECT_DOCUMENT (ngr), SP_VERB_CONTEXT_GRADIENT,
1172 _("Change gradient stop color"));
1174 blocked = FALSE;
1175 }