1 #define __SP_NAMEDVIEW_C__
3 /*
4 * <sodipodi:namedview> implementation
5 *
6 * Authors:
7 * Lauris Kaplinski <lauris@kaplinski.com>
8 * bulia byak <buliabyak@users.sf.net>
9 *
10 * Copyright (C) 2006 Johan Engelen <johan@shouraizou.nl>
11 * Copyright (C) 1999-2008 Authors
12 * Copyright (C) 2000-2001 Ximian, Inc.
13 *
14 * Released under GNU GPL, read the file 'COPYING' for more information
15 */
17 #include "config.h"
18 #include <cstring>
19 #include <string>
21 #include "display/canvas-grid.h"
22 #include "helper/units.h"
23 #include "svg/svg-color.h"
24 #include "xml/repr.h"
25 #include "attributes.h"
26 #include "document.h"
27 #include "desktop-events.h"
28 #include "desktop-handles.h"
29 #include "event-log.h"
30 #include "sp-guide.h"
31 #include "sp-item-group.h"
32 #include "sp-namedview.h"
33 #include "preferences.h"
34 #include "desktop.h"
35 #include "conn-avoid-ref.h" // for defaultConnSpacing.
37 #define DEFAULTGRIDCOLOR 0x3f3fff25
38 #define DEFAULTGRIDEMPCOLOR 0x3f3fff60
39 #define DEFAULTGRIDEMPSPACING 5
40 #define DEFAULTGUIDECOLOR 0x0000ff7f
41 #define DEFAULTGUIDEHICOLOR 0xff00007f
42 #define DEFAULTBORDERCOLOR 0x000000ff
43 #define DEFAULTPAGECOLOR 0xffffff00
45 static void sp_namedview_class_init(SPNamedViewClass *klass);
46 static void sp_namedview_init(SPNamedView *namedview);
48 static void sp_namedview_build(SPObject *object, SPDocument *document, Inkscape::XML::Node *repr);
49 static void sp_namedview_release(SPObject *object);
50 static void sp_namedview_set(SPObject *object, unsigned int key, const gchar *value);
51 static void sp_namedview_child_added(SPObject *object, Inkscape::XML::Node *child, Inkscape::XML::Node *ref);
52 static void sp_namedview_remove_child(SPObject *object, Inkscape::XML::Node *child);
53 static Inkscape::XML::Node *sp_namedview_write(SPObject *object, Inkscape::XML::Document *doc, Inkscape::XML::Node *repr, guint flags);
55 static void sp_namedview_setup_guides(SPNamedView * nv);
57 static gboolean sp_str_to_bool(const gchar *str);
58 static gboolean sp_nv_read_length(const gchar *str, guint base, gdouble *val, const SPUnit **unit);
59 static gboolean sp_nv_read_opacity(const gchar *str, guint32 *color);
61 static SPObjectGroupClass * parent_class;
63 GType
64 sp_namedview_get_type()
65 {
66 static GType namedview_type = 0;
67 if (!namedview_type) {
68 GTypeInfo namedview_info = {
69 sizeof(SPNamedViewClass),
70 NULL, /* base_init */
71 NULL, /* base_finalize */
72 (GClassInitFunc) sp_namedview_class_init,
73 NULL, /* class_finalize */
74 NULL, /* class_data */
75 sizeof(SPNamedView),
76 16, /* n_preallocs */
77 (GInstanceInitFunc) sp_namedview_init,
78 NULL, /* value_table */
79 };
80 namedview_type = g_type_register_static(SP_TYPE_OBJECTGROUP, "SPNamedView", &namedview_info, (GTypeFlags)0);
81 }
82 return namedview_type;
83 }
85 static void sp_namedview_class_init(SPNamedViewClass * klass)
86 {
87 GObjectClass * gobject_class;
88 SPObjectClass * sp_object_class;
90 gobject_class = (GObjectClass *) klass;
91 sp_object_class = (SPObjectClass *) klass;
93 parent_class = (SPObjectGroupClass*) g_type_class_ref(SP_TYPE_OBJECTGROUP);
95 sp_object_class->build = sp_namedview_build;
96 sp_object_class->release = sp_namedview_release;
97 sp_object_class->set = sp_namedview_set;
98 sp_object_class->child_added = sp_namedview_child_added;
99 sp_object_class->remove_child = sp_namedview_remove_child;
100 sp_object_class->write = sp_namedview_write;
101 }
103 static void sp_namedview_init(SPNamedView *nv)
104 {
105 nv->editable = TRUE;
106 nv->showguides = TRUE;
107 nv->grids_visible = false;
108 nv->showborder = TRUE;
109 nv->showpageshadow = TRUE;
111 nv->guides = NULL;
112 nv->viewcount = 0;
113 nv->grids = NULL;
115 nv->default_layer_id = 0;
117 nv->connector_spacing = defaultConnSpacing;
119 new (&nv->snap_manager) SnapManager(nv);
120 }
122 static void sp_namedview_generate_old_grid(SPNamedView * /*nv*/, SPDocument *document, Inkscape::XML::Node *repr) {
123 bool old_grid_settings_present = false;
125 // set old settings
126 const char* gridspacingx = "1px";
127 const char* gridspacingy = "1px";
128 const char* gridoriginy = "0px";
129 const char* gridoriginx = "0px";
130 const char* gridempspacing = "5";
131 const char* gridcolor = "#0000ff";
132 const char* gridempcolor = "#0000ff";
133 const char* gridopacity = "0.2";
134 const char* gridempopacity = "0.4";
136 const char* value = NULL;
137 if ((value = repr->attribute("gridoriginx"))) {
138 gridspacingx = value;
139 old_grid_settings_present = true;
140 }
141 if ((value = repr->attribute("gridoriginy"))) {
142 gridoriginy = value;
143 old_grid_settings_present = true;
144 }
145 if ((value = repr->attribute("gridspacingx"))) {
146 gridspacingx = value;
147 old_grid_settings_present = true;
148 }
149 if ((value = repr->attribute("gridspacingy"))) {
150 gridspacingy = value;
151 old_grid_settings_present = true;
152 }
153 if ((value = repr->attribute("gridcolor"))) {
154 gridcolor = value;
155 old_grid_settings_present = true;
156 }
157 if ((value = repr->attribute("gridempcolor"))) {
158 gridempcolor = value;
159 old_grid_settings_present = true;
160 }
161 if ((value = repr->attribute("gridempspacing"))) {
162 gridempspacing = value;
163 old_grid_settings_present = true;
164 }
165 if ((value = repr->attribute("gridopacity"))) {
166 gridopacity = value;
167 old_grid_settings_present = true;
168 }
169 if ((value = repr->attribute("gridempopacity"))) {
170 gridempopacity = value;
171 old_grid_settings_present = true;
172 }
174 if (old_grid_settings_present) {
175 // generate new xy grid with the correct settings
176 // first create the child xml node, then hook it to repr. This order is important, to not set off listeners to repr before the new node is complete.
178 Inkscape::XML::Document *xml_doc = sp_document_repr_doc(document);
179 Inkscape::XML::Node *newnode = xml_doc->createElement("inkscape:grid");
180 newnode->setAttribute("id", "GridFromPre046Settings");
181 newnode->setAttribute("type", Inkscape::CanvasGrid::getSVGName(Inkscape::GRID_RECTANGULAR));
182 newnode->setAttribute("originx", gridoriginx);
183 newnode->setAttribute("originy", gridoriginy);
184 newnode->setAttribute("spacingx", gridspacingx);
185 newnode->setAttribute("spacingy", gridspacingy);
186 newnode->setAttribute("color", gridcolor);
187 newnode->setAttribute("empcolor", gridempcolor);
188 newnode->setAttribute("opacity", gridopacity);
189 newnode->setAttribute("empopacity", gridempopacity);
190 newnode->setAttribute("empspacing", gridempspacing);
192 repr->appendChild(newnode);
193 Inkscape::GC::release(newnode);
195 // remove all old settings
196 repr->setAttribute("gridoriginx", NULL);
197 repr->setAttribute("gridoriginy", NULL);
198 repr->setAttribute("gridspacingx", NULL);
199 repr->setAttribute("gridspacingy", NULL);
200 repr->setAttribute("gridcolor", NULL);
201 repr->setAttribute("gridempcolor", NULL);
202 repr->setAttribute("gridopacity", NULL);
203 repr->setAttribute("gridempopacity", NULL);
204 repr->setAttribute("gridempspacing", NULL);
206 // sp_document_done(doc, SP_VERB_DIALOG_NAMEDVIEW, _("Create new grid from pre0.46 grid settings"));
207 }
208 }
210 static void sp_namedview_build(SPObject *object, SPDocument *document, Inkscape::XML::Node *repr)
211 {
212 SPNamedView *nv = (SPNamedView *) object;
213 SPObjectGroup *og = (SPObjectGroup *) object;
215 if (((SPObjectClass *) (parent_class))->build) {
216 (* ((SPObjectClass *) (parent_class))->build)(object, document, repr);
217 }
219 sp_object_read_attr(object, "inkscape:document-units");
220 sp_object_read_attr(object, "viewonly");
221 sp_object_read_attr(object, "showguides");
222 sp_object_read_attr(object, "showgrid");
223 sp_object_read_attr(object, "gridtolerance");
224 sp_object_read_attr(object, "guidetolerance");
225 sp_object_read_attr(object, "objecttolerance");
226 sp_object_read_attr(object, "guidecolor");
227 sp_object_read_attr(object, "guideopacity");
228 sp_object_read_attr(object, "guidehicolor");
229 sp_object_read_attr(object, "guidehiopacity");
230 sp_object_read_attr(object, "showborder");
231 sp_object_read_attr(object, "inkscape:showpageshadow");
232 sp_object_read_attr(object, "borderlayer");
233 sp_object_read_attr(object, "bordercolor");
234 sp_object_read_attr(object, "borderopacity");
235 sp_object_read_attr(object, "pagecolor");
236 sp_object_read_attr(object, "inkscape:pageopacity");
237 sp_object_read_attr(object, "inkscape:pageshadow");
238 sp_object_read_attr(object, "inkscape:zoom");
239 sp_object_read_attr(object, "inkscape:cx");
240 sp_object_read_attr(object, "inkscape:cy");
241 sp_object_read_attr(object, "inkscape:window-width");
242 sp_object_read_attr(object, "inkscape:window-height");
243 sp_object_read_attr(object, "inkscape:window-x");
244 sp_object_read_attr(object, "inkscape:window-y");
245 sp_object_read_attr(object, "inkscape:snap-global");
246 sp_object_read_attr(object, "inkscape:snap-bbox");
247 sp_object_read_attr(object, "inkscape:snap-nodes");
248 sp_object_read_attr(object, "inkscape:snap-from-guide");
249 sp_object_read_attr(object, "inkscape:snap-center");
250 sp_object_read_attr(object, "inkscape:snap-smooth-nodes");
251 sp_object_read_attr(object, "inkscape:snap-midpoints");
252 sp_object_read_attr(object, "inkscape:snap-object-midpoints");
253 sp_object_read_attr(object, "inkscape:snap-bbox-edge-midpoints");
254 sp_object_read_attr(object, "inkscape:snap-bbox-midpoints");
255 //sp_object_read_attr(object, "inkscape:snap-intersection-grid-guide");
256 sp_object_read_attr(object, "inkscape:snap-to-guides");
257 sp_object_read_attr(object, "inkscape:snap-grids");
258 sp_object_read_attr(object, "inkscape:snap-intersection-paths");
259 sp_object_read_attr(object, "inkscape:object-paths");
260 sp_object_read_attr(object, "inkscape:object-nodes");
261 sp_object_read_attr(object, "inkscape:bbox-paths");
262 sp_object_read_attr(object, "inkscape:bbox-nodes");
263 sp_object_read_attr(object, "inkscape:snap-page");
264 sp_object_read_attr(object, "inkscape:current-layer");
265 sp_object_read_attr(object, "inkscape:connector-spacing");
267 /* Construct guideline list */
268 for (SPObject *o = sp_object_first_child(SP_OBJECT(og)) ; o != NULL; o = SP_OBJECT_NEXT(o) ) {
269 if (SP_IS_GUIDE(o)) {
270 SPGuide * g = SP_GUIDE(o);
271 nv->guides = g_slist_prepend(nv->guides, g);
272 g_object_set(G_OBJECT(g), "color", nv->guidecolor, "hicolor", nv->guidehicolor, NULL);
273 }
274 }
276 // backwards compatibility with grid settings (pre 0.46)
277 sp_namedview_generate_old_grid(nv, document, repr);
278 }
280 static void sp_namedview_release(SPObject *object)
281 {
282 SPNamedView *namedview = (SPNamedView *) object;
284 if (namedview->guides) {
285 g_slist_free(namedview->guides);
286 namedview->guides = NULL;
287 }
289 // delete grids:
290 while ( namedview->grids ) {
291 Inkscape::CanvasGrid *gr = (Inkscape::CanvasGrid *)namedview->grids->data; // get first entry
292 delete gr;
293 namedview->grids = g_slist_remove_link(namedview->grids, namedview->grids); // deletes first entry
294 }
296 if (((SPObjectClass *) parent_class)->release) {
297 ((SPObjectClass *) parent_class)->release(object);
298 }
300 namedview->snap_manager.~SnapManager();
301 }
303 static void sp_namedview_set(SPObject *object, unsigned int key, const gchar *value)
304 {
305 SPNamedView *nv = SP_NAMEDVIEW(object);
306 SPUnit const &px = sp_unit_get_by_id(SP_UNIT_PX);
308 switch (key) {
309 case SP_ATTR_VIEWONLY:
310 nv->editable = (!value);
311 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
312 break;
313 case SP_ATTR_SHOWGUIDES:
314 if (!value) { // show guides if not specified, for backwards compatibility
315 nv->showguides = TRUE;
316 } else {
317 nv->showguides = sp_str_to_bool(value);
318 }
319 sp_namedview_setup_guides(nv);
320 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
321 break;
322 case SP_ATTR_SHOWGRIDS:
323 if (!value) { // don't show grids if not specified, for backwards compatibility
324 nv->grids_visible = false;
325 } else {
326 nv->grids_visible = sp_str_to_bool(value);
327 }
328 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
329 break;
330 case SP_ATTR_GRIDTOLERANCE:
331 nv->snap_manager.snapprefs.setGridTolerance(value ? g_ascii_strtod(value, NULL) : 10000);
332 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
333 break;
334 case SP_ATTR_GUIDETOLERANCE:
335 nv->snap_manager.snapprefs.setGuideTolerance(value ? g_ascii_strtod(value, NULL) : 20);
336 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
337 break;
338 case SP_ATTR_OBJECTTOLERANCE:
339 nv->snap_manager.snapprefs.setObjectTolerance(value ? g_ascii_strtod(value, NULL) : 20);
340 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
341 break;
342 case SP_ATTR_GUIDECOLOR:
343 nv->guidecolor = (nv->guidecolor & 0xff) | (DEFAULTGUIDECOLOR & 0xffffff00);
344 if (value) {
345 nv->guidecolor = (nv->guidecolor & 0xff) | sp_svg_read_color(value, nv->guidecolor);
346 }
347 for (GSList *l = nv->guides; l != NULL; l = l->next) {
348 g_object_set(G_OBJECT(l->data), "color", nv->guidecolor, NULL);
349 }
350 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
351 break;
352 case SP_ATTR_GUIDEOPACITY:
353 nv->guidecolor = (nv->guidecolor & 0xffffff00) | (DEFAULTGUIDECOLOR & 0xff);
354 sp_nv_read_opacity(value, &nv->guidecolor);
355 for (GSList *l = nv->guides; l != NULL; l = l->next) {
356 g_object_set(G_OBJECT(l->data), "color", nv->guidecolor, NULL);
357 }
358 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
359 break;
360 case SP_ATTR_GUIDEHICOLOR:
361 nv->guidehicolor = (nv->guidehicolor & 0xff) | (DEFAULTGUIDEHICOLOR & 0xffffff00);
362 if (value) {
363 nv->guidehicolor = (nv->guidehicolor & 0xff) | sp_svg_read_color(value, nv->guidehicolor);
364 }
365 for (GSList *l = nv->guides; l != NULL; l = l->next) {
366 g_object_set(G_OBJECT(l->data), "hicolor", nv->guidehicolor, NULL);
367 }
368 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
369 break;
370 case SP_ATTR_GUIDEHIOPACITY:
371 nv->guidehicolor = (nv->guidehicolor & 0xffffff00) | (DEFAULTGUIDEHICOLOR & 0xff);
372 sp_nv_read_opacity(value, &nv->guidehicolor);
373 for (GSList *l = nv->guides; l != NULL; l = l->next) {
374 g_object_set(G_OBJECT(l->data), "hicolor", nv->guidehicolor, NULL);
375 }
376 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
377 break;
378 case SP_ATTR_SHOWBORDER:
379 nv->showborder = (value) ? sp_str_to_bool (value) : TRUE;
380 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
381 break;
382 case SP_ATTR_BORDERLAYER:
383 nv->borderlayer = SP_BORDER_LAYER_BOTTOM;
384 if (value && !strcasecmp(value, "true")) nv->borderlayer = SP_BORDER_LAYER_TOP;
385 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
386 break;
387 case SP_ATTR_BORDERCOLOR:
388 nv->bordercolor = (nv->bordercolor & 0xff) | (DEFAULTBORDERCOLOR & 0xffffff00);
389 if (value) {
390 nv->bordercolor = (nv->bordercolor & 0xff) | sp_svg_read_color (value, nv->bordercolor);
391 }
392 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
393 break;
394 case SP_ATTR_BORDEROPACITY:
395 nv->bordercolor = (nv->bordercolor & 0xffffff00) | (DEFAULTBORDERCOLOR & 0xff);
396 sp_nv_read_opacity(value, &nv->bordercolor);
397 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
398 break;
399 case SP_ATTR_PAGECOLOR:
400 nv->pagecolor = (nv->pagecolor & 0xff) | (DEFAULTPAGECOLOR & 0xffffff00);
401 if (value) {
402 nv->pagecolor = (nv->pagecolor & 0xff) | sp_svg_read_color(value, nv->pagecolor);
403 }
404 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
405 break;
406 case SP_ATTR_INKSCAPE_PAGEOPACITY:
407 nv->pagecolor = (nv->pagecolor & 0xffffff00) | (DEFAULTPAGECOLOR & 0xff);
408 sp_nv_read_opacity(value, &nv->pagecolor);
409 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
410 break;
411 case SP_ATTR_INKSCAPE_PAGESHADOW:
412 nv->pageshadow = value? atoi(value) : 2; // 2 is the default
413 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
414 break;
415 case SP_ATTR_SHOWPAGESHADOW:
416 nv->showpageshadow = (value) ? sp_str_to_bool(value) : TRUE;
417 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
418 break;
419 case SP_ATTR_INKSCAPE_ZOOM:
420 nv->zoom = value ? g_ascii_strtod(value, NULL) : 0; // zero means not set
421 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
422 break;
423 case SP_ATTR_INKSCAPE_CX:
424 nv->cx = value ? g_ascii_strtod(value, NULL) : HUGE_VAL; // HUGE_VAL means not set
425 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
426 break;
427 case SP_ATTR_INKSCAPE_CY:
428 nv->cy = value ? g_ascii_strtod(value, NULL) : HUGE_VAL; // HUGE_VAL means not set
429 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
430 break;
431 case SP_ATTR_INKSCAPE_WINDOW_WIDTH:
432 nv->window_width = value? atoi(value) : -1; // -1 means not set
433 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
434 break;
435 case SP_ATTR_INKSCAPE_WINDOW_HEIGHT:
436 nv->window_height = value ? atoi(value) : -1; // -1 means not set
437 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
438 break;
439 case SP_ATTR_INKSCAPE_WINDOW_X:
440 nv->window_x = value ? atoi(value) : -1; // -1 means not set
441 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
442 break;
443 case SP_ATTR_INKSCAPE_WINDOW_Y:
444 nv->window_y = value ? atoi(value) : -1; // -1 means not set
445 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
446 break;
447 case SP_ATTR_INKSCAPE_SNAP_GLOBAL:
448 nv->snap_manager.snapprefs.setSnapEnabledGlobally(value ? sp_str_to_bool(value) : TRUE);
449 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
450 break;
451 case SP_ATTR_INKSCAPE_SNAP_BBOX:
452 nv->snap_manager.snapprefs.setSnapModeBBox(value ? sp_str_to_bool(value) : FALSE);
453 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
454 break;
455 case SP_ATTR_INKSCAPE_SNAP_NODES:
456 nv->snap_manager.snapprefs.setSnapModeNode(value ? sp_str_to_bool(value) : TRUE);
457 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
458 break;
459 case SP_ATTR_INKSCAPE_SNAP_CENTER:
460 nv->snap_manager.snapprefs.setIncludeItemCenter(value ? sp_str_to_bool(value) : FALSE);
461 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
462 break;
463 case SP_ATTR_INKSCAPE_SNAP_GRIDS:
464 nv->snap_manager.snapprefs.setSnapToGrids(value ? sp_str_to_bool(value) : TRUE);
465 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
466 break;
467 case SP_ATTR_INKSCAPE_SNAP_TO_GUIDES:
468 nv->snap_manager.snapprefs.setSnapToGuides(value ? sp_str_to_bool(value) : TRUE);
469 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
470 break;
471 case SP_ATTR_INKSCAPE_SNAP_SMOOTH_NODES:
472 nv->snap_manager.snapprefs.setSnapSmoothNodes(value ? sp_str_to_bool(value) : FALSE);
473 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
474 break;
475 case SP_ATTR_INKSCAPE_SNAP_LINE_MIDPOINTS:
476 nv->snap_manager.snapprefs.setSnapLineMidpoints(value ? sp_str_to_bool(value) : FALSE);
477 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
478 break;
479 case SP_ATTR_INKSCAPE_SNAP_OBJECT_MIDPOINTS:
480 nv->snap_manager.snapprefs.setSnapObjectMidpoints(value ? sp_str_to_bool(value) : FALSE);
481 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
482 break;
483 case SP_ATTR_INKSCAPE_SNAP_BBOX_EDGE_MIDPOINTS:
484 nv->snap_manager.snapprefs.setSnapBBoxEdgeMidpoints(value ? sp_str_to_bool(value) : FALSE);
485 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
486 break;
487 case SP_ATTR_INKSCAPE_SNAP_BBOX_MIDPOINTS:
488 nv->snap_manager.snapprefs.setSnapBBoxMidpoints(value ? sp_str_to_bool(value) : FALSE);
489 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
490 break;
491 case SP_ATTR_INKSCAPE_SNAP_FROM_GUIDE:
492 nv->snap_manager.snapprefs.setSnapModeGuide(value ? sp_str_to_bool(value) : FALSE);
493 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
494 break;
495 /*case SP_ATTR_INKSCAPE_SNAP_INTERS_GRIDGUIDE:
496 nv->snap_manager.snapprefs.setSnapIntersectionGG(value ? sp_str_to_bool(value) : TRUE);
497 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
498 break;*/
499 case SP_ATTR_INKSCAPE_SNAP_INTERS_PATHS:
500 nv->snap_manager.snapprefs.setSnapIntersectionCS(value ? sp_str_to_bool(value) : FALSE);
501 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
502 break;
503 case SP_ATTR_INKSCAPE_OBJECT_PATHS:
504 nv->snap_manager.snapprefs.setSnapToItemPath(value ? sp_str_to_bool(value) : FALSE);
505 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
506 break;
507 case SP_ATTR_INKSCAPE_OBJECT_NODES:
508 nv->snap_manager.snapprefs.setSnapToItemNode(value ? sp_str_to_bool(value) : FALSE);
509 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
510 break;
511 case SP_ATTR_INKSCAPE_BBOX_PATHS:
512 nv->snap_manager.snapprefs.setSnapToBBoxPath(value ? sp_str_to_bool(value) : FALSE);
513 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
514 break;
515 case SP_ATTR_INKSCAPE_BBOX_NODES:
516 nv->snap_manager.snapprefs.setSnapToBBoxNode(value ? sp_str_to_bool(value) : FALSE);
517 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
518 break;
519 case SP_ATTR_INKSCAPE_SNAP_PAGE:
520 nv->snap_manager.snapprefs.setSnapToPageBorder(value ? sp_str_to_bool(value) : FALSE);
521 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
522 break;
523 case SP_ATTR_INKSCAPE_CURRENT_LAYER:
524 nv->default_layer_id = value ? g_quark_from_string(value) : 0;
525 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
526 break;
527 case SP_ATTR_INKSCAPE_CONNECTOR_SPACING:
528 nv->connector_spacing = value ? g_ascii_strtod(value, NULL) :
529 defaultConnSpacing;
530 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
531 break;
532 case SP_ATTR_INKSCAPE_DOCUMENT_UNITS: {
533 /* The default unit if the document doesn't override this: e.g. for files saved as
534 * `plain SVG', or non-inkscape files, or files created by an inkscape 0.40 &
535 * earlier.
536 *
537 * Here we choose `px': useful for screen-destined SVGs, and fewer bug reports
538 * about "not the same numbers as what's in the SVG file" (at least for documents
539 * without a viewBox attribute on the root <svg> element). Similarly, it's also
540 * the most reliable unit (i.e. least likely to be wrong in different viewing
541 * conditions) for viewBox-less SVG files given that it's the unit that inkscape
542 * uses for all coordinates.
543 *
544 * For documents that do have a viewBox attribute on the root <svg> element, it
545 * might be better if we used either viewBox coordinates or if we used the unit of
546 * say the width attribute of the root <svg> element. However, these pose problems
547 * in that they aren't in general absolute units as currently required by
548 * doc_units.
549 */
550 SPUnit const *new_unit = &sp_unit_get_by_id(SP_UNIT_PX);
552 if (value) {
553 SPUnit const *const req_unit = sp_unit_get_by_abbreviation(value);
554 if ( req_unit == NULL ) {
555 g_warning("Unrecognized unit `%s'", value);
556 /* fixme: Document errors should be reported in the status bar or
557 * the like (e.g. as per
558 * http://www.w3.org/TR/SVG11/implnote.html#ErrorProcessing); g_log
559 * should be only for programmer errors. */
560 } else if ( req_unit->base == SP_UNIT_ABSOLUTE ||
561 req_unit->base == SP_UNIT_DEVICE ) {
562 new_unit = req_unit;
563 } else {
564 g_warning("Document units must be absolute like `mm', `pt' or `px', but found `%s'",
565 value);
566 /* fixme: Don't use g_log (see above). */
567 }
568 }
569 nv->doc_units = new_unit;
570 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
571 break;
572 }
573 default:
574 if (((SPObjectClass *) (parent_class))->set) {
575 ((SPObjectClass *) (parent_class))->set(object, key, value);
576 }
577 break;
578 }
579 }
581 /**
582 * add a grid item from SVG-repr. Check if this namedview already has a gridobject for this one! If desktop=null, add grid-canvasitem to all desktops of this namedview,
583 * otherwise only add it to the specified desktop.
584 */
585 static Inkscape::CanvasGrid*
586 sp_namedview_add_grid(SPNamedView *nv, Inkscape::XML::Node *repr, SPDesktop *desktop) {
587 Inkscape::CanvasGrid* grid = NULL;
588 //check if namedview already has an object for this grid
589 for (GSList *l = nv->grids; l != NULL; l = l->next) {
590 Inkscape::CanvasGrid* g = (Inkscape::CanvasGrid*) l->data;
591 if (repr == g->repr) {
592 grid = g;
593 break;
594 }
595 }
597 if (!grid) {
598 //create grid object
599 Inkscape::GridType gridtype = Inkscape::CanvasGrid::getGridTypeFromSVGName(repr->attribute("type"));
600 if (!nv->document) {
601 g_warning("sp_namedview_add_grid - how come doc is null here?!");
602 return NULL;
603 }
604 grid = Inkscape::CanvasGrid::NewGrid(nv, repr, nv->document, gridtype);
605 nv->grids = g_slist_append(nv->grids, grid);
606 }
608 if (!desktop) {
609 //add canvasitem to all desktops
610 for (GSList *l = nv->views; l != NULL; l = l->next) {
611 SPDesktop *dt = static_cast<SPDesktop*>(l->data);
612 grid->createCanvasItem(dt);
613 }
614 } else {
615 //add canvasitem only for specified desktop
616 grid->createCanvasItem(desktop);
617 }
619 return grid;
620 }
622 static void sp_namedview_child_added(SPObject *object, Inkscape::XML::Node *child, Inkscape::XML::Node *ref)
623 {
624 SPNamedView *nv = (SPNamedView *) object;
626 if (((SPObjectClass *) (parent_class))->child_added) {
627 (* ((SPObjectClass *) (parent_class))->child_added)(object, child, ref);
628 }
630 if (!strcmp(child->name(), "inkscape:grid")) {
631 sp_namedview_add_grid(nv, child, NULL);
632 } else {
633 SPObject *no = object->document->getObjectByRepr(child);
634 if ( !SP_IS_OBJECT(no) )
635 return;
637 if (SP_IS_GUIDE(no)) {
638 SPGuide *g = (SPGuide *) no;
639 nv->guides = g_slist_prepend(nv->guides, g);
640 g_object_set(G_OBJECT(g), "color", nv->guidecolor, "hicolor", nv->guidehicolor, NULL);
641 if (nv->editable) {
642 for (GSList *l = nv->views; l != NULL; l = l->next) {
643 sp_guide_show(g, static_cast<SPDesktop*>(l->data)->guides, (GCallback) sp_dt_guide_event);
644 if (static_cast<SPDesktop*>(l->data)->guides_active)
645 sp_guide_sensitize(g,
646 sp_desktop_canvas(static_cast<SPDesktop*> (l->data)),
647 TRUE);
648 if (nv->showguides) {
649 for (GSList *v = SP_GUIDE(g)->views; v != NULL; v = v->next) {
650 sp_canvas_item_show(SP_CANVAS_ITEM(v->data));
651 }
652 } else {
653 for (GSList *v = SP_GUIDE(g)->views; v != NULL; v = v->next) {
654 sp_canvas_item_hide(SP_CANVAS_ITEM(v->data));
655 }
656 }
657 }
658 }
659 }
660 }
661 }
663 static void sp_namedview_remove_child(SPObject *object, Inkscape::XML::Node *child)
664 {
665 SPNamedView *nv = (SPNamedView *) object;
667 if (!strcmp(child->name(), "inkscape:grid")) {
668 for ( GSList *iter = nv->grids ; iter ; iter = iter->next ) {
669 Inkscape::CanvasGrid *gr = (Inkscape::CanvasGrid *)iter->data;
670 if ( gr->repr == child ) {
671 delete gr;
672 nv->grids = g_slist_remove_link(nv->grids, iter);
673 break;
674 }
675 }
676 } else {
677 GSList **ref = &nv->guides;
678 for ( GSList *iter = nv->guides ; iter ; iter = iter->next ) {
679 if ( SP_OBJECT_REPR((SPObject *)iter->data) == child ) {
680 *ref = iter->next;
681 iter->next = NULL;
682 g_slist_free_1(iter);
683 break;
684 }
685 ref = &iter->next;
686 }
687 }
689 if (((SPObjectClass *) (parent_class))->remove_child) {
690 (* ((SPObjectClass *) (parent_class))->remove_child)(object, child);
691 }
692 }
694 static Inkscape::XML::Node *sp_namedview_write(SPObject *object, Inkscape::XML::Document *doc, Inkscape::XML::Node *repr, guint flags)
695 {
696 if ( ( flags & SP_OBJECT_WRITE_EXT ) &&
697 repr != SP_OBJECT_REPR(object) )
698 {
699 if (repr) {
700 repr->mergeFrom(SP_OBJECT_REPR(object), "id");
701 } else {
702 repr = SP_OBJECT_REPR(object)->duplicate(doc);
703 }
704 }
706 return repr;
707 }
709 void SPNamedView::show(SPDesktop *desktop)
710 {
711 for (GSList *l = guides; l != NULL; l = l->next) {
712 sp_guide_show(SP_GUIDE(l->data), desktop->guides, (GCallback) sp_dt_guide_event);
713 if (desktop->guides_active) {
714 sp_guide_sensitize(SP_GUIDE(l->data), sp_desktop_canvas(desktop), TRUE);
715 }
716 if (showguides) {
717 for (GSList *v = SP_GUIDE(l->data)->views; v != NULL; v = v->next) {
718 sp_canvas_item_show(SP_CANVAS_ITEM(v->data));
719 }
720 } else {
721 for (GSList *v = SP_GUIDE(l->data)->views; v != NULL; v = v->next) {
722 sp_canvas_item_hide(SP_CANVAS_ITEM(v->data));
723 }
724 }
725 }
727 views = g_slist_prepend(views, desktop);
729 // generate grids specified in SVG:
730 Inkscape::XML::Node *repr = SP_OBJECT_REPR(this);
731 if (repr) {
732 for (Inkscape::XML::Node * child = repr->firstChild() ; child != NULL; child = child->next() ) {
733 if (!strcmp(child->name(), "inkscape:grid")) {
734 sp_namedview_add_grid(this, child, desktop);
735 }
736 }
737 }
739 desktop->showGrids(grids_visible, false);
740 }
742 #define MIN_ONSCREEN_DISTANCE 50
744 /*
745 * Restores window geometry from the document settings or defaults in prefs
746 */
747 void sp_namedview_window_from_document(SPDesktop *desktop)
748 {
749 SPNamedView *nv = desktop->namedview;
750 Inkscape::Preferences *prefs = Inkscape::Preferences::get();
751 bool geometry_from_file = prefs->getBool("/options/savewindowgeometry/value");
753 // restore window size and position stored with the document
754 if (geometry_from_file) {
755 gint w = MIN(gdk_screen_width(), nv->window_width);
756 gint h = MIN(gdk_screen_height(), nv->window_height);
757 gint x = MIN(gdk_screen_width() - MIN_ONSCREEN_DISTANCE, nv->window_x);
758 gint y = MIN(gdk_screen_height() - MIN_ONSCREEN_DISTANCE, nv->window_y);
759 if (w>0 && h>0 && x>0 && y>0) {
760 x = MIN(gdk_screen_width() - w, x);
761 y = MIN(gdk_screen_height() - h, y);
762 }
763 if (w>0 && h>0) {
764 desktop->setWindowSize(w, h);
765 }
766 if (x>0 && y>0) {
767 desktop->setWindowPosition(Geom::Point(x, y));
768 }
769 }
771 // restore zoom and view
772 if (nv->zoom != 0 && nv->zoom != HUGE_VAL && !IS_NAN(nv->zoom)
773 && nv->cx != HUGE_VAL && !IS_NAN(nv->cx)
774 && nv->cy != HUGE_VAL && !IS_NAN(nv->cy)) {
775 desktop->zoom_absolute(nv->cx, nv->cy, nv->zoom);
776 } else if (sp_desktop_document(desktop)) { // document without saved zoom, zoom to its page
777 desktop->zoom_page();
778 }
780 // cancel any history of zooms up to this point
781 if (desktop->zooms_past) {
782 g_list_free(desktop->zooms_past);
783 desktop->zooms_past = NULL;
784 }
785 }
787 void sp_namedview_update_layers_from_document (SPDesktop *desktop)
788 {
789 SPObject *layer = NULL;
790 SPDocument *document = desktop->doc();
791 SPNamedView *nv = desktop->namedview;
792 if ( nv->default_layer_id != 0 ) {
793 layer = document->getObjectById(g_quark_to_string(nv->default_layer_id));
794 }
795 // don't use that object if it's not at least group
796 if ( !layer || !SP_IS_GROUP(layer) ) {
797 layer = NULL;
798 }
799 // if that didn't work out, look for the topmost layer
800 if (!layer) {
801 SPObject *iter = sp_object_first_child(SP_DOCUMENT_ROOT(document));
802 for ( ; iter ; iter = SP_OBJECT_NEXT(iter) ) {
803 if (desktop->isLayer(iter)) {
804 layer = iter;
805 }
806 }
807 }
808 if (layer) {
809 desktop->setCurrentLayer(layer);
810 }
812 // FIXME: find a better place to do this
813 desktop->event_log->updateUndoVerbs();
814 }
816 void sp_namedview_document_from_window(SPDesktop *desktop)
817 {
818 Inkscape::Preferences *prefs = Inkscape::Preferences::get();
819 bool save_geometry_in_file = prefs->getBool("/options/savewindowgeometry/value", 0);
820 Inkscape::XML::Node *view = SP_OBJECT_REPR(desktop->namedview);
821 Geom::Rect const r = desktop->get_display_area();
823 // saving window geometry is not undoable
824 bool saved = sp_document_get_undo_sensitive(sp_desktop_document(desktop));
825 sp_document_set_undo_sensitive(sp_desktop_document(desktop), false);
827 sp_repr_set_svg_double(view, "inkscape:zoom", desktop->current_zoom());
828 sp_repr_set_svg_double(view, "inkscape:cx", r.midpoint()[Geom::X]);
829 sp_repr_set_svg_double(view, "inkscape:cy", r.midpoint()[Geom::Y]);
831 if (save_geometry_in_file) {
832 gint w, h, x, y;
833 desktop->getWindowGeometry(x, y, w, h);
834 sp_repr_set_int(view, "inkscape:window-width", w);
835 sp_repr_set_int(view, "inkscape:window-height", h);
836 sp_repr_set_int(view, "inkscape:window-x", x);
837 sp_repr_set_int(view, "inkscape:window-y", y);
838 }
840 view->setAttribute("inkscape:current-layer", SP_OBJECT_ID(desktop->currentLayer()));
842 // restore undoability
843 sp_document_set_undo_sensitive(sp_desktop_document(desktop), saved);
844 }
846 void SPNamedView::hide(SPDesktop const *desktop)
847 {
848 g_assert(desktop != NULL);
849 g_assert(g_slist_find(views, desktop));
851 for (GSList *l = guides; l != NULL; l = l->next) {
852 sp_guide_hide(SP_GUIDE(l->data), sp_desktop_canvas(desktop));
853 }
855 views = g_slist_remove(views, desktop);
856 }
858 void SPNamedView::activateGuides(gpointer desktop, gboolean active)
859 {
860 g_assert(desktop != NULL);
861 g_assert(g_slist_find(views, desktop));
863 SPDesktop *dt = static_cast<SPDesktop*>(desktop);
865 for (GSList *l = guides; l != NULL; l = l->next) {
866 sp_guide_sensitize(SP_GUIDE(l->data), sp_desktop_canvas(dt), active);
867 }
868 }
870 static void sp_namedview_setup_guides(SPNamedView *nv)
871 {
872 for (GSList *l = nv->guides; l != NULL; l = l->next) {
873 if (nv->showguides) {
874 for (GSList *v = SP_GUIDE(l->data)->views; v != NULL; v = v->next) {
875 sp_canvas_item_show(SP_CANVAS_ITEM(v->data));
876 }
877 } else {
878 for (GSList *v = SP_GUIDE(l->data)->views; v != NULL; v = v->next) {
879 sp_canvas_item_hide(SP_CANVAS_ITEM(v->data));
880 }
881 }
882 }
883 }
885 void sp_namedview_toggle_guides(SPDocument *doc, Inkscape::XML::Node *repr)
886 {
887 unsigned int v;
888 unsigned int set = sp_repr_get_boolean(repr, "showguides", &v);
889 if (!set) { // hide guides if not specified, for backwards compatibility
890 v = FALSE;
891 } else {
892 v = !v;
893 }
895 bool saved = sp_document_get_undo_sensitive(doc);
896 sp_document_set_undo_sensitive(doc, false);
897 sp_repr_set_boolean(repr, "showguides", v);
898 sp_document_set_undo_sensitive(doc, saved);
900 doc->setModifiedSinceSave();
901 }
903 void sp_namedview_show_grids(SPNamedView * namedview, bool show, bool dirty_document)
904 {
905 namedview->grids_visible = show;
907 SPDocument *doc = SP_OBJECT_DOCUMENT (namedview);
908 Inkscape::XML::Node *repr = SP_OBJECT_REPR(namedview);
910 bool saved = sp_document_get_undo_sensitive(doc);
911 sp_document_set_undo_sensitive(doc, false);
912 sp_repr_set_boolean(repr, "showgrid", namedview->grids_visible);
913 sp_document_set_undo_sensitive(doc, saved);
915 /* we don't want the document to get dirty on startup; that's when
916 we call this function with dirty_document = false */
917 if (dirty_document) {
918 doc->setModifiedSinceSave();
919 }
920 }
922 gchar const *SPNamedView::getName() const
923 {
924 SPException ex;
925 SP_EXCEPTION_INIT(&ex);
926 return sp_object_getAttribute(SP_OBJECT(this), "id", &ex);
927 }
929 guint SPNamedView::getViewCount()
930 {
931 return ++viewcount;
932 }
934 GSList const *SPNamedView::getViewList() const
935 {
936 return views;
937 }
939 /* This should be moved somewhere */
941 static gboolean sp_str_to_bool(const gchar *str)
942 {
943 if (str) {
944 if (!g_strcasecmp(str, "true") ||
945 !g_strcasecmp(str, "yes") ||
946 !g_strcasecmp(str, "y") ||
947 (atoi(str) != 0)) {
948 return TRUE;
949 }
950 }
952 return FALSE;
953 }
955 /* fixme: Collect all these length parsing methods and think common sane API */
957 static gboolean sp_nv_read_length(const gchar *str, guint base, gdouble *val, const SPUnit **unit)
958 {
959 if (!str) {
960 return FALSE;
961 }
963 gchar *u;
964 gdouble v = g_ascii_strtod(str, &u);
965 if (!u) {
966 return FALSE;
967 }
968 while (isspace(*u)) {
969 u += 1;
970 }
972 if (!*u) {
973 /* No unit specified - keep default */
974 *val = v;
975 return TRUE;
976 }
978 if (base & SP_UNIT_DEVICE) {
979 if (u[0] && u[1] && !isalnum(u[2]) && !strncmp(u, "px", 2)) {
980 *unit = &sp_unit_get_by_id(SP_UNIT_PX);
981 *val = v;
982 return TRUE;
983 }
984 }
986 if (base & SP_UNIT_ABSOLUTE) {
987 if (!strncmp(u, "pt", 2)) {
988 *unit = &sp_unit_get_by_id(SP_UNIT_PT);
989 } else if (!strncmp(u, "mm", 2)) {
990 *unit = &sp_unit_get_by_id(SP_UNIT_MM);
991 } else if (!strncmp(u, "cm", 2)) {
992 *unit = &sp_unit_get_by_id(SP_UNIT_CM);
993 } else if (!strncmp(u, "m", 1)) {
994 *unit = &sp_unit_get_by_id(SP_UNIT_M);
995 } else if (!strncmp(u, "in", 2)) {
996 *unit = &sp_unit_get_by_id(SP_UNIT_IN);
997 } else {
998 return FALSE;
999 }
1000 *val = v;
1001 return TRUE;
1002 }
1004 return FALSE;
1005 }
1007 static gboolean sp_nv_read_opacity(const gchar *str, guint32 *color)
1008 {
1009 if (!str) {
1010 return FALSE;
1011 }
1013 gchar *u;
1014 gdouble v = g_ascii_strtod(str, &u);
1015 if (!u) {
1016 return FALSE;
1017 }
1018 v = CLAMP(v, 0.0, 1.0);
1020 *color = (*color & 0xffffff00) | (guint32) floor(v * 255.9999);
1022 return TRUE;
1023 }
1025 SPNamedView *sp_document_namedview(SPDocument *document, const gchar *id)
1026 {
1027 g_return_val_if_fail(document != NULL, NULL);
1029 SPObject *nv = sp_item_group_get_child_by_name((SPGroup *) document->root, NULL, "sodipodi:namedview");
1030 g_assert(nv != NULL);
1032 if (id == NULL) {
1033 return (SPNamedView *) nv;
1034 }
1036 while (nv && strcmp(nv->id, id)) {
1037 nv = sp_item_group_get_child_by_name((SPGroup *) document->root, nv, "sodipodi:namedview");
1038 }
1040 return (SPNamedView *) nv;
1041 }
1043 /**
1044 * Returns namedview's default metric.
1045 */
1046 SPMetric SPNamedView::getDefaultMetric() const
1047 {
1048 if (doc_units) {
1049 return sp_unit_get_metric(doc_units);
1050 } else {
1051 return SP_PT;
1052 }
1053 }
1055 /**
1056 * Returns the first grid it could find that isEnabled(). Returns NULL, if none is enabled
1057 */
1058 Inkscape::CanvasGrid * sp_namedview_get_first_enabled_grid(SPNamedView *namedview)
1059 {
1060 for (GSList const * l = namedview->grids; l != NULL; l = l->next) {
1061 Inkscape::CanvasGrid * grid = (Inkscape::CanvasGrid*) l->data;
1062 if (grid->isEnabled())
1063 return grid;
1064 }
1066 return NULL;
1067 }
1069 void SPNamedView::translateGuides(Geom::Translate const &tr) {
1070 for (GSList *l = guides; l != NULL; l = l->next) {
1071 SPGuide &guide = *SP_GUIDE(l->data);
1072 Geom::Point point_on_line = guide.point_on_line;
1073 point_on_line[0] += tr[0];
1074 point_on_line[1] += tr[1];
1075 sp_guide_moveto(guide, point_on_line, true);
1076 }
1077 }
1079 void SPNamedView::scrollAllDesktops(double dx, double dy, bool is_scrolling) {
1080 for(GSList *l = views; l; l = l->next) {
1081 SPDesktop *desktop = static_cast<SPDesktop *>(l->data);
1082 desktop->scroll_world_in_svg_coords(dx, dy, is_scrolling);
1083 }
1084 }
1087 /*
1088 Local Variables:
1089 mode:c++
1090 c-file-style:"stroustrup"
1091 c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
1092 indent-tabs-mode:nil
1093 fill-column:99
1094 End:
1095 */
1096 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=99 :