1 /*
2 * Gradient vector selection widget
3 *
4 * Authors:
5 * Lauris Kaplinski <lauris@kaplinski.com>
6 * bulia byak <buliabyak@users.sf.net>
7 * MenTaLguY <mental@rydia.net>
8 * Jon A. Cruz <jon@joncruz.org>
9 *
10 * Copyright (C) 2001-2002 Lauris Kaplinski
11 * Copyright (C) 2001 Ximian, Inc.
12 * Copyright (C) 2004 Monash University
13 * Copyright (C) 2004 David Turner
14 * Copyright (C) 2006 MenTaLguY
15 * Copyright (C) 2010 Jon A. Cruz
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 "../preferences.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 // TODO FIXME kill these globals!!!
66 static GtkWidget *dlg = NULL;
67 static win_data wd;
68 static gint x = -1000, y = -1000, w = 0, h = 0; // impossible original values to make sure they are read from prefs
69 static Glib::ustring const prefs_path = "/dialogs/gradienteditor/";
71 GType sp_gradient_vector_selector_get_type(void)
72 {
73 static GType type = 0;
74 if (!type) {
75 static const GTypeInfo info = {
76 sizeof(SPGradientVectorSelectorClass),
77 NULL, /* base_init */
78 NULL, /* base_finalize */
79 reinterpret_cast<GClassInitFunc>(sp_gradient_vector_selector_class_init),
80 NULL, /* class_finalize */
81 NULL, /* class_data */
82 sizeof(SPGradientVectorSelector),
83 0, /* n_preallocs */
84 reinterpret_cast<GInstanceInitFunc>(sp_gradient_vector_selector_init),
85 0, /* value_table */
86 };
88 type = g_type_register_static( GTK_TYPE_VBOX,
89 "SPGradientVectorSelector",
90 &info,
91 static_cast< GTypeFlags >(0) );
92 }
93 return type;
94 }
96 static void sp_gradient_vector_selector_class_init(SPGradientVectorSelectorClass *klass)
97 {
98 GtkObjectClass *object_class;
100 object_class = GTK_OBJECT_CLASS(klass);
102 parent_class = static_cast<GtkVBoxClass*>(gtk_type_class(GTK_TYPE_VBOX));
104 signals[VECTOR_SET] = gtk_signal_new( "vector_set",
105 GTK_RUN_LAST,
106 GTK_CLASS_TYPE(object_class),
107 GTK_SIGNAL_OFFSET(SPGradientVectorSelectorClass, vector_set),
108 gtk_marshal_NONE__POINTER,
109 GTK_TYPE_NONE, 1,
110 GTK_TYPE_POINTER);
112 object_class->destroy = sp_gradient_vector_selector_destroy;
113 }
115 static void sp_gradient_vector_selector_init(SPGradientVectorSelector *gvs)
116 {
117 gvs->idlabel = TRUE;
119 gvs->swatched = false;
121 gvs->doc = NULL;
122 gvs->gr = NULL;
124 new (&gvs->gradient_release_connection) sigc::connection();
125 new (&gvs->defs_release_connection) sigc::connection();
126 new (&gvs->defs_modified_connection) sigc::connection();
128 gvs->menu = gtk_option_menu_new();
129 gtk_widget_show(gvs->menu);
130 gtk_box_pack_start(GTK_BOX(gvs), gvs->menu, TRUE, TRUE, 0);
131 }
133 static void sp_gradient_vector_selector_destroy(GtkObject *object)
134 {
135 SPGradientVectorSelector *gvs = SP_GRADIENT_VECTOR_SELECTOR(object);
137 if (gvs->gr) {
138 gvs->gradient_release_connection.disconnect();
139 gvs->gr = NULL;
140 }
142 if (gvs->doc) {
143 gvs->defs_release_connection.disconnect();
144 gvs->defs_modified_connection.disconnect();
145 gvs->doc = NULL;
146 }
148 gvs->gradient_release_connection.~connection();
149 gvs->defs_release_connection.~connection();
150 gvs->defs_modified_connection.~connection();
152 if ((reinterpret_cast<GtkObjectClass *>(parent_class))->destroy) {
153 (* (reinterpret_cast<GtkObjectClass *>(parent_class))->destroy) (object);
154 }
155 }
157 GtkWidget *sp_gradient_vector_selector_new(SPDocument *doc, SPGradient *gr)
158 {
159 GtkWidget *gvs;
161 g_return_val_if_fail(!gr || SP_IS_GRADIENT(gr), NULL);
162 g_return_val_if_fail(!gr || (SP_OBJECT_DOCUMENT(gr) == doc), NULL);
164 gvs = static_cast<GtkWidget*>(gtk_type_new(SP_TYPE_GRADIENT_VECTOR_SELECTOR));
166 if (doc) {
167 sp_gradient_vector_selector_set_gradient(SP_GRADIENT_VECTOR_SELECTOR(gvs), doc, gr);
168 } else {
169 sp_gvs_rebuild_gui_full(SP_GRADIENT_VECTOR_SELECTOR(gvs));
170 }
172 return gvs;
173 }
175 void sp_gradient_vector_selector_set_gradient(SPGradientVectorSelector *gvs, SPDocument *doc, SPGradient *gr)
176 {
177 static gboolean suppress = FALSE;
179 g_return_if_fail(gvs != NULL);
180 g_return_if_fail(SP_IS_GRADIENT_VECTOR_SELECTOR(gvs));
181 g_return_if_fail(!gr || (doc != NULL));
182 g_return_if_fail(!gr || SP_IS_GRADIENT(gr));
183 g_return_if_fail(!gr || (SP_OBJECT_DOCUMENT(gr) == doc));
184 g_return_if_fail(!gr || SP_GRADIENT_HAS_STOPS(gr));
186 if (doc != gvs->doc) {
187 /* Disconnect signals */
188 if (gvs->gr) {
189 gvs->gradient_release_connection.disconnect();
190 gvs->gr = NULL;
191 }
192 if (gvs->doc) {
193 gvs->defs_release_connection.disconnect();
194 gvs->defs_modified_connection.disconnect();
195 gvs->doc = NULL;
196 }
198 // Connect signals
199 if (doc) {
200 gvs->defs_release_connection = SP_DOCUMENT_DEFS(doc)->connectRelease(sigc::bind<1>(sigc::ptr_fun(&sp_gvs_defs_release), gvs));
201 gvs->defs_modified_connection = SP_DOCUMENT_DEFS(doc)->connectModified(sigc::bind<2>(sigc::ptr_fun(&sp_gvs_defs_modified), gvs));
202 }
203 if (gr) {
204 gvs->gradient_release_connection = gr->connectRelease(sigc::bind<1>(sigc::ptr_fun(&sp_gvs_gradient_release), gvs));
205 }
206 gvs->doc = doc;
207 gvs->gr = gr;
208 sp_gvs_rebuild_gui_full(gvs);
209 if (!suppress) g_signal_emit(G_OBJECT(gvs), signals[VECTOR_SET], 0, gr);
210 } else if (gr != gvs->gr) {
211 // Harder case - keep document, rebuild menus and stuff
212 // fixme: (Lauris)
213 suppress = TRUE;
214 sp_gradient_vector_selector_set_gradient(gvs, NULL, NULL);
215 sp_gradient_vector_selector_set_gradient(gvs, doc, gr);
216 suppress = FALSE;
217 g_signal_emit(G_OBJECT(gvs), signals[VECTOR_SET], 0, gr);
218 }
219 /* The case of setting NULL -> NULL is not very interesting */
220 }
222 SPDocument *sp_gradient_vector_selector_get_document(SPGradientVectorSelector *gvs)
223 {
224 g_return_val_if_fail(gvs != NULL, NULL);
225 g_return_val_if_fail(SP_IS_GRADIENT_VECTOR_SELECTOR(gvs), NULL);
227 return gvs->doc;
228 }
230 SPGradient *sp_gradient_vector_selector_get_gradient(SPGradientVectorSelector *gvs)
231 {
232 g_return_val_if_fail(gvs != NULL, NULL);
233 g_return_val_if_fail(SP_IS_GRADIENT_VECTOR_SELECTOR(gvs), NULL);
235 return gvs->gr;
236 }
238 static void sp_gvs_rebuild_gui_full(SPGradientVectorSelector *gvs)
239 {
240 /* Clear old menu, if there is any */
241 if (gtk_option_menu_get_menu(GTK_OPTION_MENU(gvs->menu))) {
242 gtk_option_menu_remove_menu(GTK_OPTION_MENU(gvs->menu));
243 }
245 /* Create new menu widget */
246 GtkWidget *m = gtk_menu_new();
247 gtk_widget_show(m);
249 /* Pick up all gradients with vectors */
250 GSList *gl = NULL;
251 if (gvs->gr) {
252 const GSList *gradients = sp_document_get_resource_list(SP_OBJECT_DOCUMENT(gvs->gr), "gradient");
253 for (const GSList *curr = gradients; curr; curr = curr->next) {
254 SPGradient* grad = SP_GRADIENT(curr->data);
255 if (SP_GRADIENT_HAS_STOPS(grad) && (grad->isSwatch() == gvs->swatched)) {
256 gl = g_slist_prepend(gl, curr->data);
257 }
258 }
259 }
260 gl = g_slist_reverse(gl);
262 gint pos = 0;
263 gint idx = 0;
265 if (!gvs->doc) {
266 GtkWidget *i;
267 i = gtk_menu_item_new_with_label(_("No document selected"));
268 gtk_widget_show(i);
269 gtk_menu_append(GTK_MENU(m), i);
270 gtk_widget_set_sensitive(gvs->menu, FALSE);
271 } else if (!gl) {
272 GtkWidget *i;
273 i = gtk_menu_item_new_with_label(_("No gradients in document"));
274 gtk_widget_show(i);
275 gtk_menu_append(GTK_MENU(m), i);
276 gtk_widget_set_sensitive(gvs->menu, FALSE);
277 } else if (!gvs->gr) {
278 GtkWidget *i;
279 i = gtk_menu_item_new_with_label(_("No gradient selected"));
280 gtk_widget_show(i);
281 gtk_menu_append(GTK_MENU(m), i);
282 gtk_widget_set_sensitive(gvs->menu, FALSE);
283 } else {
284 while (gl) {
285 SPGradient *gr;
286 GtkWidget *i, *w;
287 gr = SP_GRADIENT(gl->data);
288 gl = g_slist_remove(gl, gr);
290 /* We have to know: */
291 /* Gradient destroy */
292 /* Gradient name change */
293 i = gtk_menu_item_new();
294 gtk_widget_show(i);
295 g_object_set_data(G_OBJECT(i), "gradient", gr);
296 g_signal_connect(G_OBJECT(i), "activate", G_CALLBACK(sp_gvs_gradient_activate), gvs);
298 w = sp_gradient_image_new(gr);
299 gtk_widget_show(w);
301 if (gvs->idlabel) {
302 GtkWidget *hb, *l;
303 hb = gtk_hbox_new(FALSE, 4);
304 gtk_widget_show(hb);
305 l = gtk_label_new(gr->getId());
306 gtk_widget_show(l);
307 gtk_misc_set_alignment(GTK_MISC(l), 1.0, 0.5);
308 gtk_box_pack_start(GTK_BOX(hb), l, TRUE, TRUE, 0);
309 gtk_box_pack_start(GTK_BOX(hb), w, FALSE, FALSE, 0);
310 w = hb;
311 }
313 gtk_container_add(GTK_CONTAINER(i), w);
315 gtk_menu_append(GTK_MENU(m), i);
317 if (gr == gvs->gr) {
318 pos = idx;
319 }
320 idx += 1;
321 }
322 gtk_widget_set_sensitive(gvs->menu, TRUE);
323 }
325 gtk_option_menu_set_menu(GTK_OPTION_MENU(gvs->menu), m);
326 /* Set history */
327 gtk_option_menu_set_history(GTK_OPTION_MENU(gvs->menu), pos);
328 }
330 static void sp_gvs_gradient_activate(GtkMenuItem *mi, SPGradientVectorSelector *gvs)
331 {
332 SPGradient *gr, *norm;
334 gr = (SPGradient*)g_object_get_data(G_OBJECT(mi), "gradient");
335 /* Hmmm... bad things may happen here, if actual gradient is something new */
336 /* Namely - menuitems etc. will be fucked up */
337 /* Hmmm - probably we can just re-set it as menuitem data (Lauris) */
339 //g_print("SPGradientVectorSelector: gradient %s activated\n", SP_OBJECT_ID(gr));
341 norm = sp_gradient_ensure_vector_normalized(gr);
342 if (norm != gr) {
343 //g_print("SPGradientVectorSelector: become %s after normalization\n", SP_OBJECT_ID(norm));
344 /* But be careful that we do not have gradient saved anywhere else */
345 g_object_set_data(G_OBJECT(mi), "gradient", norm);
346 }
348 /* fixme: Really we would want to use _set_vector */
349 /* Detach old */
350 if (gvs->gr) {
351 gvs->gradient_release_connection.disconnect();
352 gvs->gr = NULL;
353 }
354 /* Attach new */
355 if (norm) {
356 gvs->gradient_release_connection = norm->connectRelease(sigc::bind<1>(sigc::ptr_fun(&sp_gvs_gradient_release), gvs));
357 gvs->gr = norm;
358 }
360 g_signal_emit(G_OBJECT(gvs), signals[VECTOR_SET], 0, norm);
362 if (norm != gr) {
363 /* We do extra undo push here */
364 /* If handler has already done it, it is just NOP */
365 // FIXME: looks like this is never a valid undo step, consider removing this
366 sp_document_done(SP_OBJECT_DOCUMENT(norm), SP_VERB_CONTEXT_GRADIENT,
367 /* TODO: annotate */ "gradient-vector.cpp:350");
368 }
369 }
371 static void sp_gvs_gradient_release(SPObject */*obj*/, SPGradientVectorSelector *gvs)
372 {
373 /* Disconnect gradient */
374 if (gvs->gr) {
375 gvs->gradient_release_connection.disconnect();
376 gvs->gr = NULL;
377 }
379 /* Rebuild GUI */
380 sp_gvs_rebuild_gui_full(gvs);
381 }
383 static void sp_gvs_defs_release(SPObject */*defs*/, SPGradientVectorSelector *gvs)
384 {
385 gvs->doc = NULL;
387 gvs->defs_release_connection.disconnect();
388 gvs->defs_modified_connection.disconnect();
390 /* Disconnect gradient as well */
391 if (gvs->gr) {
392 gvs->gradient_release_connection.disconnect();
393 gvs->gr = NULL;
394 }
396 /* Rebuild GUI */
397 sp_gvs_rebuild_gui_full(gvs);
398 }
400 static void sp_gvs_defs_modified(SPObject */*defs*/, guint /*flags*/, SPGradientVectorSelector *gvs)
401 {
402 /* fixme: We probably have to check some flags here (Lauris) */
404 sp_gvs_rebuild_gui_full(gvs);
405 }
407 void SPGradientVectorSelector::setSwatched()
408 {
409 swatched = true;
410 sp_gvs_rebuild_gui_full(this);
411 }
413 /*##################################################################
414 ### Vector Editing Widget
415 ##################################################################*/
417 #include "../widgets/sp-color-notebook.h"
418 #include "../widgets/sp-color-preview.h"
419 #include "../widgets/widget-sizes.h"
420 #include "../xml/node-event-vector.h"
421 #include "../svg/svg-color.h"
424 #define PAD 4
426 static GtkWidget *sp_gradient_vector_widget_new(SPGradient *gradient, SPStop *stop);
428 static void sp_gradient_vector_widget_load_gradient(GtkWidget *widget, SPGradient *gradient);
429 static gint sp_gradient_vector_dialog_delete(GtkWidget *widget, GdkEvent *event, GtkWidget *dialog);
430 static void sp_gradient_vector_dialog_destroy(GtkObject *object, gpointer data);
432 static void sp_gradient_vector_widget_destroy(GtkObject *object, gpointer data);
433 static void sp_gradient_vector_gradient_release(SPObject *obj, GtkWidget *widget);
434 static void sp_gradient_vector_gradient_modified(SPObject *obj, guint flags, GtkWidget *widget);
435 static void sp_gradient_vector_color_dragged(SPColorSelector *csel, GtkObject *object);
436 static void sp_gradient_vector_color_changed(SPColorSelector *csel, GtkObject *object);
437 static void update_stop_list( GtkWidget *mnu, SPGradient *gradient, SPStop *new_stop);
439 static gboolean blocked = FALSE;
441 static void grad_edit_dia_stop_added_or_removed(Inkscape::XML::Node */*repr*/, Inkscape::XML::Node */*child*/, Inkscape::XML::Node */*ref*/, gpointer data)
442 {
443 GtkWidget *vb = GTK_WIDGET(data);
444 GtkWidget *mnu = (GtkWidget *)g_object_get_data(G_OBJECT(vb), "stopmenu");
445 SPGradient *gradient = (SPGradient *)g_object_get_data(G_OBJECT(vb), "gradient");
446 update_stop_list(mnu, gradient, NULL);
447 }
449 //FIXME!!! We must also listen to attr changes on all children (i.e. stops) too,
450 //otherwise the dialog does not reflect undoing color or offset change. This is a major
451 //hassle, unless we have a "one of the descendants changed in some way" signal.
452 static Inkscape::XML::NodeEventVector grad_edit_dia_repr_events =
453 {
454 grad_edit_dia_stop_added_or_removed, /* child_added */
455 grad_edit_dia_stop_added_or_removed, /* child_removed */
456 NULL, /* attr_changed*/
457 NULL, /* content_changed */
458 NULL /* order_changed */
459 };
461 static void verify_grad(SPGradient *gradient)
462 {
463 int i = 0;
464 SPStop *stop = NULL;
465 /* count stops */
466 for ( SPObject *ochild = sp_object_first_child(SP_OBJECT(gradient)) ; ochild != NULL ; ochild = SP_OBJECT_NEXT(ochild) ) {
467 if (SP_IS_STOP(ochild)) {
468 i++;
469 stop = SP_STOP(ochild);
470 }
471 }
473 Inkscape::XML::Document *xml_doc;
474 xml_doc = SP_OBJECT_REPR(gradient)->document();
476 if (i < 1) {
477 gchar c[64];
478 sp_svg_write_color(c, sizeof(c), 0x00000000);
480 Inkscape::CSSOStringStream os;
481 os << "stop-color:" << c << ";stop-opacity:" << 1.0 << ";";
483 Inkscape::XML::Node *child;
485 child = xml_doc->createElement("svg:stop");
486 sp_repr_set_css_double(child, "offset", 0.0);
487 child->setAttribute("style", os.str().c_str());
488 SP_OBJECT_REPR(gradient)->addChild(child, NULL);
489 Inkscape::GC::release(child);
491 child = xml_doc->createElement("svg:stop");
492 sp_repr_set_css_double(child, "offset", 1.0);
493 child->setAttribute("style", os.str().c_str());
494 SP_OBJECT_REPR(gradient)->addChild(child, NULL);
495 Inkscape::GC::release(child);
496 }
497 if (i < 2) {
498 sp_repr_set_css_double(SP_OBJECT_REPR(stop), "offset", 0.0);
499 Inkscape::XML::Node *child = SP_OBJECT_REPR(stop)->duplicate(SP_OBJECT_REPR(gradient)->document());
500 sp_repr_set_css_double(child, "offset", 1.0);
501 SP_OBJECT_REPR(gradient)->addChild(child, SP_OBJECT_REPR(stop));
502 Inkscape::GC::release(child);
503 }
504 }
506 static void select_stop_in_list( GtkWidget *mnu, SPGradient *gradient, SPStop *new_stop)
507 {
508 int i = 0;
509 for ( SPObject *ochild = sp_object_first_child(SP_OBJECT(gradient)) ; ochild != NULL ; ochild = SP_OBJECT_NEXT(ochild) ) {
510 if (SP_IS_STOP(ochild)) {
511 if (SP_OBJECT(ochild) == SP_OBJECT(new_stop)) {
512 gtk_option_menu_set_history(GTK_OPTION_MENU(mnu), i);
513 break;
514 }
515 i++;
516 }
517 }
518 }
520 static void update_stop_list( GtkWidget *mnu, SPGradient *gradient, SPStop *new_stop)
521 {
523 if (!SP_IS_GRADIENT(gradient)) {
524 return;
525 }
527 blocked = TRUE;
529 /* Clear old menu, if there is any */
530 if (gtk_option_menu_get_menu(GTK_OPTION_MENU(mnu))) {
531 gtk_option_menu_remove_menu(GTK_OPTION_MENU(mnu));
532 }
534 /* Create new menu widget */
535 GtkWidget *m = gtk_menu_new();
536 gtk_widget_show(m);
537 GSList *sl = NULL;
538 if (gradient->has_stops) {
539 for ( SPObject *ochild = sp_object_first_child(SP_OBJECT(gradient)) ; ochild != NULL ; ochild = SP_OBJECT_NEXT(ochild) ) {
540 if (SP_IS_STOP(ochild)) {
541 sl = g_slist_append(sl, ochild);
542 }
543 }
544 }
545 if (!sl) {
546 GtkWidget *i = gtk_menu_item_new_with_label(_("No stops in gradient"));
547 gtk_widget_show(i);
548 gtk_menu_append(GTK_MENU(m), i);
549 gtk_widget_set_sensitive(mnu, FALSE);
550 } else {
552 for (; sl != NULL; sl = sl->next){
553 SPStop *stop;
554 GtkWidget *i;
555 if (SP_IS_STOP(sl->data)){
556 stop = SP_STOP(sl->data);
557 i = gtk_menu_item_new();
558 gtk_widget_show(i);
559 g_object_set_data(G_OBJECT(i), "stop", stop);
560 GtkWidget *hb = gtk_hbox_new(FALSE, 4);
561 GtkWidget *cpv = sp_color_preview_new(sp_stop_get_rgba32(stop));
562 gtk_widget_show(cpv);
563 gtk_container_add( GTK_CONTAINER(hb), cpv );
564 g_object_set_data( G_OBJECT(i), "preview", cpv );
565 Inkscape::XML::Node *repr = SP_OBJECT_REPR((SPItem *) sl->data);
566 GtkWidget *l = gtk_label_new(repr->attribute("id"));
567 gtk_widget_show(l);
568 gtk_misc_set_alignment(GTK_MISC(l), 1.0, 0.5);
569 gtk_box_pack_start(GTK_BOX(hb), l, TRUE, TRUE, 0);
570 gtk_widget_show(hb);
571 gtk_container_add(GTK_CONTAINER(i), hb);
572 gtk_menu_append(GTK_MENU(m), i);
573 }
574 }
576 gtk_widget_set_sensitive(mnu, TRUE);
577 }
578 gtk_option_menu_set_menu(GTK_OPTION_MENU(mnu), m);
580 /* Set history */
581 if (new_stop == NULL) {
582 gtk_option_menu_set_history(GTK_OPTION_MENU(mnu), 0);
583 } else {
584 select_stop_in_list(mnu, gradient, new_stop);
585 }
587 blocked = FALSE;
588 }
591 // user selected existing stop from list
592 static void sp_grad_edit_select(GtkOptionMenu *mnu, GtkWidget *tbl)
593 {
594 GObject *item = G_OBJECT(gtk_menu_get_active(GTK_MENU(gtk_option_menu_get_menu(mnu))));
595 SPStop *stop = SP_STOP(g_object_get_data(item, "stop"));
596 if (!stop) {
597 return;
598 }
600 blocked = TRUE;
602 SPColorSelector *csel = (SPColorSelector*)g_object_get_data(G_OBJECT(tbl), "cselector");
603 guint32 const c = sp_stop_get_rgba32(stop);
604 csel->base->setAlpha(SP_RGBA32_A_F(c));
605 SPColor color( SP_RGBA32_R_F(c), SP_RGBA32_G_F(c), SP_RGBA32_B_F(c) );
606 // set its color, from the stored array
607 csel->base->setColor( color );
608 GtkWidget *offspin = GTK_WIDGET(g_object_get_data(G_OBJECT(tbl), "offspn"));
609 GtkWidget *offslide =GTK_WIDGET(g_object_get_data(G_OBJECT(tbl), "offslide"));
611 GtkAdjustment *adj = static_cast<GtkAdjustment*>(gtk_object_get_data(GTK_OBJECT(tbl), "offset"));
613 bool isEndStop = false;
615 SPStop *prev = NULL;
616 prev = stop->getPrevStop();
617 if (prev != NULL ) {
618 adj->lower = prev->offset;
619 } else {
620 isEndStop = true;
621 adj->lower = 0;
622 }
624 SPStop *next = NULL;
625 next = stop->getNextStop();
626 if (next != NULL ) {
627 adj->upper = next->offset;
628 } else {
629 isEndStop = true;
630 adj->upper = 1.0;
631 }
633 //fixme: does this work on all possible input gradients?
634 if (!isEndStop) {
635 gtk_widget_set_sensitive(offslide, TRUE);
636 gtk_widget_set_sensitive(GTK_WIDGET(offspin), TRUE);
637 } else {
638 gtk_widget_set_sensitive(offslide, FALSE);
639 gtk_widget_set_sensitive(GTK_WIDGET(offspin), FALSE);
640 }
642 gtk_adjustment_set_value(adj, stop->offset);
644 gtk_adjustment_changed(adj);
646 blocked = FALSE;
647 }
652 static void offadjustmentChanged( GtkAdjustment *adjustment, GtkWidget *vb)
653 {
654 if (blocked) {
655 return;
656 }
658 blocked = TRUE;
660 GtkOptionMenu *mnu = static_cast<GtkOptionMenu *>(g_object_get_data(G_OBJECT(vb), "stopmenu"));
661 if (!g_object_get_data(G_OBJECT(gtk_menu_get_active(GTK_MENU(gtk_option_menu_get_menu(mnu)))), "stop")) {
662 return;
663 }
664 SPStop *stop = SP_STOP(g_object_get_data(G_OBJECT(gtk_menu_get_active(GTK_MENU(gtk_option_menu_get_menu(mnu)))), "stop"));
666 stop->offset = adjustment->value;
667 sp_repr_set_css_double(SP_OBJECT_REPR(stop), "offset", stop->offset);
669 sp_document_done(SP_OBJECT_DOCUMENT(stop), SP_VERB_CONTEXT_GRADIENT,
670 _("Change gradient stop offset"));
672 blocked = FALSE;
673 }
675 guint32 sp_average_color(guint32 c1, guint32 c2, gdouble p = 0.5)
676 {
677 guint32 r = (guint32) (SP_RGBA32_R_U(c1) * p + SP_RGBA32_R_U(c2) * (1 - p));
678 guint32 g = (guint32) (SP_RGBA32_G_U(c1) * p + SP_RGBA32_G_U(c2) * (1 - p));
679 guint32 b = (guint32) (SP_RGBA32_B_U(c1) * p + SP_RGBA32_B_U(c2) * (1 - p));
680 guint32 a = (guint32) (SP_RGBA32_A_U(c1) * p + SP_RGBA32_A_U(c2) * (1 - p));
682 return SP_RGBA32_U_COMPOSE(r, g, b, a);
683 }
686 static void sp_grd_ed_add_stop(GtkWidget */*widget*/, GtkWidget *vb)
687 {
688 SPGradient *gradient = static_cast<SPGradient *>(g_object_get_data(G_OBJECT(vb), "gradient"));
689 verify_grad(gradient);
690 GtkOptionMenu *mnu = static_cast<GtkOptionMenu *>(g_object_get_data(G_OBJECT(vb), "stopmenu"));
692 SPStop *stop = static_cast<SPStop *>(g_object_get_data(G_OBJECT(gtk_menu_get_active(GTK_MENU(gtk_option_menu_get_menu(mnu)))), "stop"));
694 if (stop == NULL) {
695 return;
696 }
698 Inkscape::XML::Node *new_stop_repr = NULL;
700 SPStop *next = stop->getNextStop();
702 if (next == NULL) {
703 SPStop *prev = stop->getPrevStop();
704 if (prev != NULL) {
705 next = stop;
706 stop = prev;
707 }
708 }
710 if (next != NULL) {
711 new_stop_repr = SP_OBJECT_REPR(stop)->duplicate(SP_OBJECT_REPR(gradient)->document());
712 SP_OBJECT_REPR(gradient)->addChild(new_stop_repr, SP_OBJECT_REPR(stop));
713 } else {
714 next = stop;
715 new_stop_repr = SP_OBJECT_REPR(stop->getPrevStop())->duplicate(SP_OBJECT_REPR(gradient)->document());
716 SP_OBJECT_REPR(gradient)->addChild(new_stop_repr, SP_OBJECT_REPR(stop->getPrevStop()));
717 }
719 SPStop *newstop = (SPStop *) SP_OBJECT_DOCUMENT(gradient)->getObjectByRepr(new_stop_repr);
721 newstop->offset = (stop->offset + next->offset) * 0.5 ;
723 guint32 const c1 = sp_stop_get_rgba32(stop);
724 guint32 const c2 = sp_stop_get_rgba32(next);
725 guint32 cnew = sp_average_color(c1, c2);
727 Inkscape::CSSOStringStream os;
728 gchar c[64];
729 sp_svg_write_color(c, sizeof(c), cnew);
730 gdouble opacity = static_cast<gdouble>(SP_RGBA32_A_F(cnew));
731 os << "stop-color:" << c << ";stop-opacity:" << opacity <<";";
732 SP_OBJECT_REPR (newstop)->setAttribute("style", os.str().c_str());
733 sp_repr_set_css_double( SP_OBJECT_REPR(newstop), "offset", (double)newstop->offset);
735 sp_gradient_vector_widget_load_gradient(vb, gradient);
736 Inkscape::GC::release(new_stop_repr);
737 update_stop_list(GTK_WIDGET(mnu), gradient, newstop);
738 GtkWidget *offspin = GTK_WIDGET(g_object_get_data(G_OBJECT(vb), "offspn"));
739 GtkWidget *offslide =GTK_WIDGET(g_object_get_data(G_OBJECT(vb), "offslide"));
740 gtk_widget_set_sensitive(offslide, TRUE);
741 gtk_widget_set_sensitive(GTK_WIDGET(offspin), TRUE);
742 sp_document_done(SP_OBJECT_DOCUMENT(gradient), SP_VERB_CONTEXT_GRADIENT,
743 _("Add gradient stop"));
744 }
746 static void sp_grd_ed_del_stop(GtkWidget */*widget*/, GtkWidget *vb)
747 {
748 SPGradient *gradient = static_cast<SPGradient *>(g_object_get_data(G_OBJECT(vb), "gradient"));
750 GtkOptionMenu *mnu = static_cast<GtkOptionMenu *>(g_object_get_data(G_OBJECT(vb), "stopmenu"));
751 if (!g_object_get_data(G_OBJECT(gtk_menu_get_active(GTK_MENU(gtk_option_menu_get_menu(mnu)))), "stop")) return;
752 SPStop *stop = SP_STOP(g_object_get_data(G_OBJECT(gtk_menu_get_active(GTK_MENU(gtk_option_menu_get_menu(mnu)))), "stop"));
753 if (gradient->vector.stops.size() > 2) { // 2 is the minimum
755 // if we delete first or last stop, move the next/previous to the edge
756 if (stop->offset == 0) {
757 SPStop *next = stop->getNextStop();
758 if (next) {
759 next->offset = 0;
760 sp_repr_set_css_double(SP_OBJECT_REPR(next), "offset", 0);
761 }
762 } else if (stop->offset == 1) {
763 SPStop *prev = stop->getPrevStop();
764 if (prev) {
765 prev->offset = 1;
766 sp_repr_set_css_double(SP_OBJECT_REPR(prev), "offset", 1);
767 }
768 }
770 SP_OBJECT_REPR(gradient)->removeChild(SP_OBJECT_REPR(stop));
771 sp_gradient_vector_widget_load_gradient(vb, gradient);
772 update_stop_list(GTK_WIDGET(mnu), gradient, NULL);
773 sp_document_done(SP_OBJECT_DOCUMENT(gradient), SP_VERB_CONTEXT_GRADIENT,
774 _("Delete gradient stop"));
775 }
777 }
779 static GtkWidget * sp_gradient_vector_widget_new(SPGradient *gradient, SPStop *select_stop)
780 {
781 GtkWidget *vb, *w, *f, *csel;
783 g_return_val_if_fail(!gradient || SP_IS_GRADIENT(gradient), NULL);
785 vb = gtk_vbox_new(FALSE, PAD);
786 g_signal_connect(G_OBJECT(vb), "destroy", G_CALLBACK(sp_gradient_vector_widget_destroy), NULL);
788 w = sp_gradient_image_new(gradient);
789 g_object_set_data(G_OBJECT(vb), "preview", w);
790 gtk_widget_show(w);
791 gtk_box_pack_start(GTK_BOX(vb), w, TRUE, TRUE, PAD);
793 sp_repr_add_listener(SP_OBJECT_REPR(gradient), &grad_edit_dia_repr_events, vb);
794 GtkTooltips *tt = gtk_tooltips_new();
796 /* Stop list */
797 GtkWidget *mnu = gtk_option_menu_new();
798 /* Create new menu widget */
799 update_stop_list(GTK_WIDGET(mnu), gradient, NULL);
800 gtk_signal_connect(GTK_OBJECT(mnu), "changed", GTK_SIGNAL_FUNC(sp_grad_edit_select), vb);
801 gtk_widget_show(mnu);
802 gtk_object_set_data(GTK_OBJECT(vb), "stopmenu", mnu);
803 gtk_box_pack_start(GTK_BOX(vb), mnu, FALSE, FALSE, 0);
805 /* Add and Remove buttons */
806 GtkWidget *hb = gtk_hbox_new(FALSE, 1);
807 // TRANSLATORS: "Stop" means: a "phase" of a gradient
808 GtkWidget *b = gtk_button_new_with_label(_("Add stop"));
809 gtk_widget_show(b);
810 gtk_container_add(GTK_CONTAINER(hb), b);
811 gtk_tooltips_set_tip(tt, b, _("Add another control stop to gradient"), NULL);
812 gtk_signal_connect(GTK_OBJECT(b), "clicked", GTK_SIGNAL_FUNC(sp_grd_ed_add_stop), vb);
813 b = gtk_button_new_with_label(_("Delete stop"));
814 gtk_widget_show(b);
815 gtk_container_add(GTK_CONTAINER(hb), b);
816 gtk_tooltips_set_tip(tt, b, _("Delete current control stop from gradient"), NULL);
817 gtk_signal_connect(GTK_OBJECT(b), "clicked", GTK_SIGNAL_FUNC(sp_grd_ed_del_stop), vb);
819 gtk_widget_show(hb);
820 gtk_box_pack_start(GTK_BOX(vb),hb, FALSE, FALSE, AUX_BETWEEN_BUTTON_GROUPS);
823 /* Offset Slider and stuff */
824 hb = gtk_hbox_new(FALSE, 0);
826 /* Label */
827 GtkWidget *l = gtk_label_new(_("Offset:"));
828 gtk_misc_set_alignment(GTK_MISC(l), 1.0, 0.5);
829 gtk_box_pack_start(GTK_BOX(hb),l, FALSE, FALSE, AUX_BETWEEN_BUTTON_GROUPS);
830 gtk_widget_show(l);
832 /* Adjustment */
833 GtkAdjustment *Offset_adj = NULL;
834 Offset_adj= (GtkAdjustment *) gtk_adjustment_new(0.0, 0.0, 1.0, 0.01, 0.01, 0.0);
835 gtk_object_set_data(GTK_OBJECT(vb), "offset", Offset_adj);
836 GtkMenu *m = GTK_MENU(gtk_option_menu_get_menu(GTK_OPTION_MENU(mnu)));
837 SPStop *stop = SP_STOP(g_object_get_data(G_OBJECT(gtk_menu_get_active(m)), "stop"));
838 gtk_adjustment_set_value(Offset_adj, stop->offset);
840 /* Slider */
841 GtkWidget *slider = gtk_hscale_new(Offset_adj);
842 gtk_scale_set_draw_value( GTK_SCALE(slider), FALSE );
843 gtk_widget_show(slider);
844 gtk_box_pack_start(GTK_BOX(hb),slider, TRUE, TRUE, AUX_BETWEEN_BUTTON_GROUPS);
845 gtk_object_set_data(GTK_OBJECT(vb), "offslide", slider);
847 /* Spinbutton */
848 GtkWidget *sbtn = gtk_spin_button_new(GTK_ADJUSTMENT(Offset_adj), 0.01, 2);
849 sp_dialog_defocus_on_enter(sbtn);
850 gtk_widget_show(sbtn);
851 gtk_box_pack_start(GTK_BOX(hb),sbtn, FALSE, TRUE, AUX_BETWEEN_BUTTON_GROUPS);
852 gtk_object_set_data(GTK_OBJECT(vb), "offspn", sbtn);
854 if (stop->offset>0 && stop->offset<1) {
855 gtk_widget_set_sensitive(slider, TRUE);
856 gtk_widget_set_sensitive(GTK_WIDGET(sbtn), TRUE);
857 } else {
858 gtk_widget_set_sensitive(slider, FALSE);
859 gtk_widget_set_sensitive(GTK_WIDGET(sbtn), FALSE);
860 }
863 /* Signals */
864 gtk_signal_connect(GTK_OBJECT(Offset_adj), "value_changed",
865 GTK_SIGNAL_FUNC(offadjustmentChanged), vb);
867 // gtk_signal_connect(GTK_OBJECT(slider), "changed", GTK_SIGNAL_FUNC(offsliderChanged), vb);
868 gtk_widget_show(hb);
869 gtk_box_pack_start(GTK_BOX(vb), hb, FALSE, FALSE, PAD);
871 // TRANSLATORS: "Stop" means: a "phase" of a gradient
872 f = gtk_frame_new(_("Stop Color"));
873 gtk_widget_show(f);
874 gtk_box_pack_start(GTK_BOX(vb), f, TRUE, TRUE, PAD);
875 csel = static_cast<GtkWidget*>(sp_color_selector_new(SP_TYPE_COLOR_NOTEBOOK));
876 g_object_set_data(G_OBJECT(vb), "cselector", csel);
877 gtk_widget_show(csel);
878 gtk_container_add(GTK_CONTAINER(f), csel);
879 g_signal_connect(G_OBJECT(csel), "dragged", G_CALLBACK(sp_gradient_vector_color_dragged), vb);
880 g_signal_connect(G_OBJECT(csel), "changed", G_CALLBACK(sp_gradient_vector_color_changed), vb);
882 gtk_widget_show(vb);
884 sp_gradient_vector_widget_load_gradient(vb, gradient);
886 if (select_stop) {
887 select_stop_in_list(GTK_WIDGET(mnu), gradient, select_stop);
888 }
890 return vb;
891 }
895 GtkWidget * sp_gradient_vector_editor_new(SPGradient *gradient, SPStop *stop)
896 {
897 GtkWidget *wid;
899 if (dlg == NULL) {
900 Inkscape::Preferences *prefs = Inkscape::Preferences::get();
902 dlg = sp_window_new(_("Gradient editor"), TRUE);
903 if (x == -1000 || y == -1000) {
904 x = prefs->getInt(prefs_path + "x", -1000);
905 y = prefs->getInt(prefs_path + "y", -1000);
906 }
907 if (w ==0 || h == 0) {
908 w = prefs->getInt(prefs_path + "w", 0);
909 h = prefs->getInt(prefs_path + "h", 0);
910 }
912 if (x<0) {
913 x=0;
914 }
915 if (y<0) {
916 y=0;
917 }
919 if (x != 0 || y != 0) {
920 gtk_window_move(reinterpret_cast<GtkWindow *>(dlg), x, y);
921 } else {
922 gtk_window_set_position(GTK_WINDOW(dlg), GTK_WIN_POS_CENTER);
923 }
924 if (w && h) {
925 gtk_window_resize(reinterpret_cast<GtkWindow *>(dlg), w, h);
926 }
927 sp_transientize(dlg);
928 wd.win = dlg;
929 wd.stop = 0;
930 g_signal_connect(G_OBJECT(INKSCAPE), "activate_desktop", G_CALLBACK(sp_transientize_callback), &wd);
931 gtk_signal_connect(GTK_OBJECT(dlg), "event", GTK_SIGNAL_FUNC(sp_dialog_event_handler), dlg);
932 gtk_signal_connect(GTK_OBJECT(dlg), "destroy", G_CALLBACK(sp_gradient_vector_dialog_destroy), dlg);
933 gtk_signal_connect(GTK_OBJECT(dlg), "delete_event", G_CALLBACK(sp_gradient_vector_dialog_delete), dlg);
934 g_signal_connect(G_OBJECT(INKSCAPE), "shut_down", G_CALLBACK(sp_gradient_vector_dialog_delete), dlg);
935 g_signal_connect( G_OBJECT(INKSCAPE), "dialogs_hide", G_CALLBACK(sp_dialog_hide), dlg );
936 g_signal_connect( G_OBJECT(INKSCAPE), "dialogs_unhide", G_CALLBACK(sp_dialog_unhide), dlg );
938 gtk_container_set_border_width(GTK_CONTAINER(dlg), PAD);
940 wid = static_cast<GtkWidget*>(sp_gradient_vector_widget_new(gradient, stop));
941 g_object_set_data(G_OBJECT(dlg), "gradient-vector-widget", wid);
942 /* Connect signals */
943 gtk_widget_show(wid);
944 gtk_container_add(GTK_CONTAINER(dlg), wid);
945 } else {
946 // FIXME: temp fix for 0.38
947 // Simply load_gradient into the editor does not work for multi-stop gradients,
948 // as the stop list and other widgets are in a wrong state and crash readily.
949 // Instead we just delete the window (by sending the delete signal)
950 // and call sp_gradient_vector_editor_new again, so it creates the window anew.
952 GdkEventAny event;
953 GtkWidget *widget = static_cast<GtkWidget *>(dlg);
954 event.type = GDK_DELETE;
955 event.window = widget->window;
956 event.send_event = TRUE;
957 g_object_ref(G_OBJECT(event.window));
958 gtk_main_do_event(reinterpret_cast<GdkEvent*>(&event));
959 g_object_unref(G_OBJECT(event.window));
961 g_assert(dlg == NULL);
962 sp_gradient_vector_editor_new(gradient, stop);
963 }
965 return dlg;
966 }
968 static void sp_gradient_vector_widget_load_gradient(GtkWidget *widget, SPGradient *gradient)
969 {
970 blocked = TRUE;
972 SPGradient *old;
974 old = (SPGradient*)g_object_get_data(G_OBJECT(widget), "gradient");
976 if (old != gradient) {
977 sigc::connection *release_connection;
978 sigc::connection *modified_connection;
980 release_connection = (sigc::connection *)g_object_get_data(G_OBJECT(widget), "gradient_release_connection");
981 modified_connection = (sigc::connection *)g_object_get_data(G_OBJECT(widget), "gradient_modified_connection");
983 if (old) {
984 g_assert( release_connection != NULL );
985 g_assert( modified_connection != NULL );
986 release_connection->disconnect();
987 modified_connection->disconnect();
988 sp_signal_disconnect_by_data(old, widget);
989 }
991 if (gradient) {
992 if (!release_connection) {
993 release_connection = new sigc::connection();
994 }
995 if (!modified_connection) {
996 modified_connection = new sigc::connection();
997 }
998 *release_connection = gradient->connectRelease(sigc::bind<1>(sigc::ptr_fun(&sp_gradient_vector_gradient_release), widget));
999 *modified_connection = gradient->connectModified(sigc::bind<2>(sigc::ptr_fun(&sp_gradient_vector_gradient_modified), widget));
1000 } else {
1001 if (release_connection) {
1002 delete release_connection;
1003 release_connection = NULL;
1004 }
1005 if (modified_connection) {
1006 delete modified_connection;
1007 modified_connection = NULL;
1008 }
1009 }
1011 g_object_set_data(G_OBJECT(widget), "gradient_release_connection", release_connection);
1012 g_object_set_data(G_OBJECT(widget), "gradient_modified_connection", modified_connection);
1013 }
1015 g_object_set_data(G_OBJECT(widget), "gradient", gradient);
1017 if (gradient) {
1018 gtk_widget_set_sensitive(widget, TRUE);
1020 sp_gradient_ensure_vector(gradient);
1022 GtkOptionMenu *mnu = static_cast<GtkOptionMenu *>(g_object_get_data(G_OBJECT(widget), "stopmenu"));
1023 SPStop *stop = SP_STOP(g_object_get_data(G_OBJECT(gtk_menu_get_active(GTK_MENU(gtk_option_menu_get_menu(mnu)))), "stop"));
1024 guint32 const c = sp_stop_get_rgba32(stop);
1026 /// get the color selector
1027 SPColorSelector *csel = SP_COLOR_SELECTOR(g_object_get_data(G_OBJECT(widget), "cselector"));
1028 // set alpha
1029 csel->base->setAlpha(SP_RGBA32_A_F(c));
1030 SPColor color( SP_RGBA32_R_F(c), SP_RGBA32_G_F(c), SP_RGBA32_B_F(c) );
1031 // set color
1032 csel->base->setColor( color );
1034 /* Fill preview */
1035 GtkWidget *w = static_cast<GtkWidget *>(g_object_get_data(G_OBJECT(widget), "preview"));
1036 sp_gradient_image_set_gradient(SP_GRADIENT_IMAGE(w), gradient);
1038 update_stop_list(GTK_WIDGET(mnu), gradient, NULL);
1040 // Once the user edits a gradient, it stops being auto-collectable
1041 if (SP_OBJECT_REPR(gradient)->attribute("inkscape:collect")) {
1042 SPDocument *document = SP_OBJECT_DOCUMENT(gradient);
1043 bool saved = sp_document_get_undo_sensitive(document);
1044 sp_document_set_undo_sensitive(document, false);
1045 SP_OBJECT_REPR(gradient)->setAttribute("inkscape:collect", NULL);
1046 sp_document_set_undo_sensitive(document, saved);
1047 }
1048 } else { // no gradient, disable everything
1049 gtk_widget_set_sensitive(widget, FALSE);
1050 }
1052 blocked = FALSE;
1053 }
1055 static void sp_gradient_vector_dialog_destroy(GtkObject */*object*/, gpointer /*data*/)
1056 {
1057 sp_signal_disconnect_by_data(INKSCAPE, dlg);
1058 wd.win = dlg = NULL;
1059 wd.stop = 0;
1060 }
1062 static gboolean sp_gradient_vector_dialog_delete(GtkWidget */*widget*/, GdkEvent */*event*/, GtkWidget */*dialog*/)
1063 {
1064 gtk_window_get_position(GTK_WINDOW(dlg), &x, &y);
1065 gtk_window_get_size(GTK_WINDOW(dlg), &w, &h);
1067 if (x<0) {
1068 x=0;
1069 }
1070 if (y<0) {
1071 y=0;
1072 }
1074 Inkscape::Preferences *prefs = Inkscape::Preferences::get();
1075 prefs->setInt(prefs_path + "x", x);
1076 prefs->setInt(prefs_path + "y", y);
1077 prefs->setInt(prefs_path + "w", w);
1078 prefs->setInt(prefs_path + "h", h);
1080 return FALSE; // which means, go ahead and destroy it
1081 }
1083 /* Widget destroy handler */
1085 static void sp_gradient_vector_widget_destroy(GtkObject *object, gpointer /*data*/)
1086 {
1087 GObject *gradient;
1089 gradient = (GObject*)g_object_get_data(G_OBJECT(object), "gradient");
1091 sigc::connection *release_connection = (sigc::connection *)g_object_get_data(G_OBJECT(object), "gradient_release_connection");
1092 sigc::connection *modified_connection = (sigc::connection *)g_object_get_data(G_OBJECT(object), "gradient_modified_connection");
1094 if (gradient) {
1095 g_assert( release_connection != NULL );
1096 g_assert( modified_connection != NULL );
1097 release_connection->disconnect();
1098 modified_connection->disconnect();
1099 sp_signal_disconnect_by_data(gradient, object);
1100 }
1102 if (gradient && SP_OBJECT_REPR(gradient)) {
1103 sp_repr_remove_listener_by_data(SP_OBJECT_REPR(gradient), object);
1104 }
1105 }
1107 static void sp_gradient_vector_gradient_release(SPObject */*object*/, GtkWidget *widget)
1108 {
1109 sp_gradient_vector_widget_load_gradient(widget, NULL);
1110 }
1112 static void sp_gradient_vector_gradient_modified(SPObject *object, guint /*flags*/, GtkWidget *widget)
1113 {
1114 SPGradient *gradient=SP_GRADIENT(object);
1115 if (!blocked) {
1116 blocked = TRUE;
1117 sp_gradient_vector_widget_load_gradient(widget, gradient);
1118 blocked = FALSE;
1119 }
1120 }
1122 static void sp_gradient_vector_color_dragged(SPColorSelector *csel, GtkObject *object)
1123 {
1124 SPGradient *gradient, *ngr;
1126 if (blocked) {
1127 return;
1128 }
1130 gradient = static_cast<SPGradient*>(g_object_get_data(G_OBJECT(object), "gradient"));
1131 if (!gradient) {
1132 return;
1133 }
1135 blocked = TRUE;
1137 ngr = sp_gradient_ensure_vector_normalized(gradient);
1138 if (ngr != gradient) {
1139 /* Our master gradient has changed */
1140 sp_gradient_vector_widget_load_gradient(GTK_WIDGET(object), ngr);
1141 }
1143 sp_gradient_ensure_vector(ngr);
1145 GtkOptionMenu *mnu = static_cast<GtkOptionMenu *>(g_object_get_data(G_OBJECT(object), "stopmenu"));
1146 SPStop *stop = SP_STOP(g_object_get_data(G_OBJECT(gtk_menu_get_active(GTK_MENU(gtk_option_menu_get_menu(mnu)))), "stop"));
1149 csel->base->getColorAlpha(stop->specified_color, &stop->opacity);
1150 stop->currentColor = false;
1152 blocked = FALSE;
1153 }
1155 static void sp_gradient_vector_color_changed(SPColorSelector *csel, GtkObject *object)
1156 {
1157 SPColor color;
1158 float alpha;
1159 guint32 rgb;
1161 if (blocked) {
1162 return;
1163 }
1165 SPGradient *gradient = static_cast<SPGradient*>(g_object_get_data(G_OBJECT(object), "gradient"));
1166 if (!gradient) {
1167 return;
1168 }
1170 blocked = TRUE;
1172 SPGradient *ngr = sp_gradient_ensure_vector_normalized(gradient);
1173 if (ngr != gradient) {
1174 /* Our master gradient has changed */
1175 sp_gradient_vector_widget_load_gradient(GTK_WIDGET(object), ngr);
1176 }
1178 sp_gradient_ensure_vector(ngr);
1180 /* Set start parameters */
1181 /* We rely on normalized vector, i.e. stops HAVE to exist */
1182 g_return_if_fail(ngr->getFirstStop() != NULL);
1184 GtkOptionMenu *mnu = static_cast<GtkOptionMenu *>(g_object_get_data(G_OBJECT(object), "stopmenu"));
1185 SPStop *stop = SP_STOP(g_object_get_data(G_OBJECT(gtk_menu_get_active(GTK_MENU(gtk_option_menu_get_menu(mnu)))), "stop"));
1187 csel = static_cast<SPColorSelector*>(g_object_get_data(G_OBJECT(object), "cselector"));
1188 csel->base->getColorAlpha( color, &alpha );
1189 rgb = color.toRGBA32( 0x00 );
1191 sp_repr_set_css_double(SP_OBJECT_REPR(stop), "offset", stop->offset);
1192 Inkscape::CSSOStringStream os;
1193 gchar c[64];
1194 sp_svg_write_color(c, sizeof(c), rgb);
1195 os << "stop-color:" << c << ";stop-opacity:" << static_cast<gdouble>(alpha) <<";";
1196 SP_OBJECT_REPR(stop)->setAttribute("style", os.str().c_str());
1197 // g_snprintf(c, 256, "stop-color:#%06x;stop-opacity:%g;", rgb >> 8, static_cast<gdouble>(alpha));
1198 //SP_OBJECT_REPR(stop)->setAttribute("style", c);
1200 sp_document_done(SP_OBJECT_DOCUMENT(ngr), SP_VERB_CONTEXT_GRADIENT,
1201 _("Change gradient stop color"));
1203 blocked = FALSE;
1205 SPColorPreview *cpv = static_cast<SPColorPreview *>(g_object_get_data(G_OBJECT(gtk_menu_get_active(GTK_MENU(gtk_option_menu_get_menu(mnu)))), "preview"));
1206 sp_color_preview_set_rgba32(cpv, sp_stop_get_rgba32(stop));
1207 }
1209 /*
1210 Local Variables:
1211 mode:c++
1212 c-file-style:"stroustrup"
1213 c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
1214 indent-tabs-mode:nil
1215 fill-column:99
1216 End:
1217 */
1218 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=99 :