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 "display/guideline.h"
23 #include "helper/units.h"
24 #include "svg/svg-color.h"
25 #include "xml/repr.h"
26 #include "attributes.h"
27 #include "document.h"
28 #include "desktop-events.h"
29 #include "desktop-handles.h"
30 #include "event-log.h"
31 #include "sp-guide.h"
32 #include "sp-item-group.h"
33 #include "sp-namedview.h"
34 #include "preferences.h"
35 #include "desktop.h"
36 #include "conn-avoid-ref.h" // for defaultConnSpacing.
38 #define DEFAULTGRIDCOLOR 0x3f3fff25
39 #define DEFAULTGRIDEMPCOLOR 0x3f3fff60
40 #define DEFAULTGRIDEMPSPACING 5
41 #define DEFAULTGUIDECOLOR 0x0000ff7f
42 #define DEFAULTGUIDEHICOLOR 0xff00007f
43 #define DEFAULTBORDERCOLOR 0x000000ff
44 #define DEFAULTPAGECOLOR 0xffffff00
46 static void sp_namedview_class_init(SPNamedViewClass *klass);
47 static void sp_namedview_init(SPNamedView *namedview);
49 static void sp_namedview_build(SPObject *object, SPDocument *document, Inkscape::XML::Node *repr);
50 static void sp_namedview_release(SPObject *object);
51 static void sp_namedview_set(SPObject *object, unsigned int key, const gchar *value);
52 static void sp_namedview_child_added(SPObject *object, Inkscape::XML::Node *child, Inkscape::XML::Node *ref);
53 static void sp_namedview_remove_child(SPObject *object, Inkscape::XML::Node *child);
54 static Inkscape::XML::Node *sp_namedview_write(SPObject *object, Inkscape::XML::Document *doc, Inkscape::XML::Node *repr, guint flags);
56 static void sp_namedview_setup_guides(SPNamedView * nv);
57 static void sp_namedview_show_single_guide(SPGuide* guide, bool show);
59 static gboolean sp_str_to_bool(const gchar *str);
60 static gboolean sp_nv_read_opacity(const gchar *str, guint32 *color);
62 static SPObjectGroupClass * parent_class;
64 GType
65 sp_namedview_get_type()
66 {
67 static GType namedview_type = 0;
68 if (!namedview_type) {
69 GTypeInfo namedview_info = {
70 sizeof(SPNamedViewClass),
71 NULL, /* base_init */
72 NULL, /* base_finalize */
73 (GClassInitFunc) sp_namedview_class_init,
74 NULL, /* class_finalize */
75 NULL, /* class_data */
76 sizeof(SPNamedView),
77 16, /* n_preallocs */
78 (GInstanceInitFunc) sp_namedview_init,
79 NULL, /* value_table */
80 };
81 namedview_type = g_type_register_static(SP_TYPE_OBJECTGROUP, "SPNamedView", &namedview_info, (GTypeFlags)0);
82 }
83 return namedview_type;
84 }
86 static void sp_namedview_class_init(SPNamedViewClass * klass)
87 {
88 GObjectClass * gobject_class;
89 SPObjectClass * sp_object_class;
91 gobject_class = (GObjectClass *) klass;
92 sp_object_class = (SPObjectClass *) klass;
94 parent_class = (SPObjectGroupClass*) g_type_class_ref(SP_TYPE_OBJECTGROUP);
96 sp_object_class->build = sp_namedview_build;
97 sp_object_class->release = sp_namedview_release;
98 sp_object_class->set = sp_namedview_set;
99 sp_object_class->child_added = sp_namedview_child_added;
100 sp_object_class->remove_child = sp_namedview_remove_child;
101 sp_object_class->write = sp_namedview_write;
102 }
104 static void sp_namedview_init(SPNamedView *nv)
105 {
106 nv->editable = TRUE;
107 nv->showguides = TRUE;
108 nv->grids_visible = false;
109 nv->showborder = TRUE;
110 nv->showpageshadow = TRUE;
112 nv->guides = NULL;
113 nv->viewcount = 0;
114 nv->grids = NULL;
116 nv->default_layer_id = 0;
118 nv->connector_spacing = defaultConnSpacing;
120 new (&nv->snap_manager) SnapManager(nv);
121 }
123 static void sp_namedview_generate_old_grid(SPNamedView * /*nv*/, SPDocument *document, Inkscape::XML::Node *repr) {
124 bool old_grid_settings_present = false;
126 // set old settings
127 const char* gridspacingx = "1px";
128 const char* gridspacingy = "1px";
129 const char* gridoriginy = "0px";
130 const char* gridoriginx = "0px";
131 const char* gridempspacing = "5";
132 const char* gridcolor = "#0000ff";
133 const char* gridempcolor = "#0000ff";
134 const char* gridopacity = "0.2";
135 const char* gridempopacity = "0.4";
137 const char* value = NULL;
138 if ((value = repr->attribute("gridoriginx"))) {
139 gridspacingx = value;
140 old_grid_settings_present = true;
141 }
142 if ((value = repr->attribute("gridoriginy"))) {
143 gridoriginy = value;
144 old_grid_settings_present = true;
145 }
146 if ((value = repr->attribute("gridspacingx"))) {
147 gridspacingx = value;
148 old_grid_settings_present = true;
149 }
150 if ((value = repr->attribute("gridspacingy"))) {
151 gridspacingy = value;
152 old_grid_settings_present = true;
153 }
154 if ((value = repr->attribute("gridcolor"))) {
155 gridcolor = value;
156 old_grid_settings_present = true;
157 }
158 if ((value = repr->attribute("gridempcolor"))) {
159 gridempcolor = value;
160 old_grid_settings_present = true;
161 }
162 if ((value = repr->attribute("gridempspacing"))) {
163 gridempspacing = value;
164 old_grid_settings_present = true;
165 }
166 if ((value = repr->attribute("gridopacity"))) {
167 gridopacity = value;
168 old_grid_settings_present = true;
169 }
170 if ((value = repr->attribute("gridempopacity"))) {
171 gridempopacity = value;
172 old_grid_settings_present = true;
173 }
175 if (old_grid_settings_present) {
176 // generate new xy grid with the correct settings
177 // 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.
179 Inkscape::XML::Document *xml_doc = sp_document_repr_doc(document);
180 Inkscape::XML::Node *newnode = xml_doc->createElement("inkscape:grid");
181 newnode->setAttribute("id", "GridFromPre046Settings");
182 newnode->setAttribute("type", Inkscape::CanvasGrid::getSVGName(Inkscape::GRID_RECTANGULAR));
183 newnode->setAttribute("originx", gridoriginx);
184 newnode->setAttribute("originy", gridoriginy);
185 newnode->setAttribute("spacingx", gridspacingx);
186 newnode->setAttribute("spacingy", gridspacingy);
187 newnode->setAttribute("color", gridcolor);
188 newnode->setAttribute("empcolor", gridempcolor);
189 newnode->setAttribute("opacity", gridopacity);
190 newnode->setAttribute("empopacity", gridempopacity);
191 newnode->setAttribute("empspacing", gridempspacing);
193 repr->appendChild(newnode);
194 Inkscape::GC::release(newnode);
196 // remove all old settings
197 repr->setAttribute("gridoriginx", NULL);
198 repr->setAttribute("gridoriginy", NULL);
199 repr->setAttribute("gridspacingx", NULL);
200 repr->setAttribute("gridspacingy", NULL);
201 repr->setAttribute("gridcolor", NULL);
202 repr->setAttribute("gridempcolor", NULL);
203 repr->setAttribute("gridopacity", NULL);
204 repr->setAttribute("gridempopacity", NULL);
205 repr->setAttribute("gridempspacing", NULL);
207 // sp_document_done(doc, SP_VERB_DIALOG_NAMEDVIEW, _("Create new grid from pre0.46 grid settings"));
208 }
209 }
211 static void sp_namedview_build(SPObject *object, SPDocument *document, Inkscape::XML::Node *repr)
212 {
213 SPNamedView *nv = (SPNamedView *) object;
214 SPObjectGroup *og = (SPObjectGroup *) object;
216 if (((SPObjectClass *) (parent_class))->build) {
217 (* ((SPObjectClass *) (parent_class))->build)(object, document, repr);
218 }
220 sp_object_read_attr(object, "inkscape:document-units");
221 sp_object_read_attr(object, "viewonly");
222 sp_object_read_attr(object, "showguides");
223 sp_object_read_attr(object, "showgrid");
224 sp_object_read_attr(object, "gridtolerance");
225 sp_object_read_attr(object, "guidetolerance");
226 sp_object_read_attr(object, "objecttolerance");
227 sp_object_read_attr(object, "guidecolor");
228 sp_object_read_attr(object, "guideopacity");
229 sp_object_read_attr(object, "guidehicolor");
230 sp_object_read_attr(object, "guidehiopacity");
231 sp_object_read_attr(object, "showborder");
232 sp_object_read_attr(object, "inkscape:showpageshadow");
233 sp_object_read_attr(object, "borderlayer");
234 sp_object_read_attr(object, "bordercolor");
235 sp_object_read_attr(object, "borderopacity");
236 sp_object_read_attr(object, "pagecolor");
237 sp_object_read_attr(object, "inkscape:pageopacity");
238 sp_object_read_attr(object, "inkscape:pageshadow");
239 sp_object_read_attr(object, "inkscape:zoom");
240 sp_object_read_attr(object, "inkscape:cx");
241 sp_object_read_attr(object, "inkscape:cy");
242 sp_object_read_attr(object, "inkscape:window-width");
243 sp_object_read_attr(object, "inkscape:window-height");
244 sp_object_read_attr(object, "inkscape:window-x");
245 sp_object_read_attr(object, "inkscape:window-y");
246 sp_object_read_attr(object, "inkscape:window-maximized");
247 sp_object_read_attr(object, "inkscape:snap-global");
248 sp_object_read_attr(object, "inkscape:snap-bbox");
249 sp_object_read_attr(object, "inkscape:snap-nodes");
250 sp_object_read_attr(object, "inkscape:snap-from-guide");
251 sp_object_read_attr(object, "inkscape:snap-center");
252 sp_object_read_attr(object, "inkscape:snap-smooth-nodes");
253 sp_object_read_attr(object, "inkscape:snap-midpoints");
254 sp_object_read_attr(object, "inkscape:snap-object-midpoints");
255 sp_object_read_attr(object, "inkscape:snap-bbox-edge-midpoints");
256 sp_object_read_attr(object, "inkscape:snap-bbox-midpoints");
257 sp_object_read_attr(object, "inkscape:snap-to-guides");
258 sp_object_read_attr(object, "inkscape:snap-grids");
259 sp_object_read_attr(object, "inkscape:snap-intersection-paths");
260 sp_object_read_attr(object, "inkscape:object-paths");
261 sp_object_read_attr(object, "inkscape:object-nodes");
262 sp_object_read_attr(object, "inkscape:bbox-paths");
263 sp_object_read_attr(object, "inkscape:bbox-nodes");
264 sp_object_read_attr(object, "inkscape:snap-page");
265 sp_object_read_attr(object, "inkscape:current-layer");
266 sp_object_read_attr(object, "inkscape:connector-spacing");
268 /* Construct guideline list */
269 for (SPObject *o = sp_object_first_child(SP_OBJECT(og)) ; o != NULL; o = SP_OBJECT_NEXT(o) ) {
270 if (SP_IS_GUIDE(o)) {
271 SPGuide * g = SP_GUIDE(o);
272 nv->guides = g_slist_prepend(nv->guides, g);
273 g_object_set(G_OBJECT(g), "color", nv->guidecolor, "hicolor", nv->guidehicolor, NULL);
274 }
275 }
277 // backwards compatibility with grid settings (pre 0.46)
278 sp_namedview_generate_old_grid(nv, document, repr);
279 }
281 static void sp_namedview_release(SPObject *object)
282 {
283 SPNamedView *namedview = (SPNamedView *) object;
285 if (namedview->guides) {
286 g_slist_free(namedview->guides);
287 namedview->guides = NULL;
288 }
290 // delete grids:
291 while ( namedview->grids ) {
292 Inkscape::CanvasGrid *gr = (Inkscape::CanvasGrid *)namedview->grids->data; // get first entry
293 delete gr;
294 namedview->grids = g_slist_remove_link(namedview->grids, namedview->grids); // deletes first entry
295 }
297 if (((SPObjectClass *) parent_class)->release) {
298 ((SPObjectClass *) parent_class)->release(object);
299 }
301 namedview->snap_manager.~SnapManager();
302 }
304 static void sp_namedview_set(SPObject *object, unsigned int key, const gchar *value)
305 {
306 SPNamedView *nv = SP_NAMEDVIEW(object);
307 // TODO investigate why we grab this and then never use it
308 SPUnit const &px = sp_unit_get_by_id(SP_UNIT_PX);
310 switch (key) {
311 case SP_ATTR_VIEWONLY:
312 nv->editable = (!value);
313 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
314 break;
315 case SP_ATTR_SHOWGUIDES:
316 if (!value) { // show guides if not specified, for backwards compatibility
317 nv->showguides = TRUE;
318 } else {
319 nv->showguides = sp_str_to_bool(value);
320 }
321 sp_namedview_setup_guides(nv);
322 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
323 break;
324 case SP_ATTR_SHOWGRIDS:
325 if (!value) { // don't show grids if not specified, for backwards compatibility
326 nv->grids_visible = false;
327 } else {
328 nv->grids_visible = sp_str_to_bool(value);
329 }
330 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
331 break;
332 case SP_ATTR_GRIDTOLERANCE:
333 nv->snap_manager.snapprefs.setGridTolerance(value ? g_ascii_strtod(value, NULL) : 10000);
334 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
335 break;
336 case SP_ATTR_GUIDETOLERANCE:
337 nv->snap_manager.snapprefs.setGuideTolerance(value ? g_ascii_strtod(value, NULL) : 20);
338 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
339 break;
340 case SP_ATTR_OBJECTTOLERANCE:
341 nv->snap_manager.snapprefs.setObjectTolerance(value ? g_ascii_strtod(value, NULL) : 20);
342 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
343 break;
344 case SP_ATTR_GUIDECOLOR:
345 nv->guidecolor = (nv->guidecolor & 0xff) | (DEFAULTGUIDECOLOR & 0xffffff00);
346 if (value) {
347 nv->guidecolor = (nv->guidecolor & 0xff) | sp_svg_read_color(value, nv->guidecolor);
348 }
349 for (GSList *l = nv->guides; l != NULL; l = l->next) {
350 g_object_set(G_OBJECT(l->data), "color", nv->guidecolor, NULL);
351 }
352 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
353 break;
354 case SP_ATTR_GUIDEOPACITY:
355 nv->guidecolor = (nv->guidecolor & 0xffffff00) | (DEFAULTGUIDECOLOR & 0xff);
356 sp_nv_read_opacity(value, &nv->guidecolor);
357 for (GSList *l = nv->guides; l != NULL; l = l->next) {
358 g_object_set(G_OBJECT(l->data), "color", nv->guidecolor, NULL);
359 }
360 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
361 break;
362 case SP_ATTR_GUIDEHICOLOR:
363 nv->guidehicolor = (nv->guidehicolor & 0xff) | (DEFAULTGUIDEHICOLOR & 0xffffff00);
364 if (value) {
365 nv->guidehicolor = (nv->guidehicolor & 0xff) | sp_svg_read_color(value, nv->guidehicolor);
366 }
367 for (GSList *l = nv->guides; l != NULL; l = l->next) {
368 g_object_set(G_OBJECT(l->data), "hicolor", nv->guidehicolor, NULL);
369 }
370 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
371 break;
372 case SP_ATTR_GUIDEHIOPACITY:
373 nv->guidehicolor = (nv->guidehicolor & 0xffffff00) | (DEFAULTGUIDEHICOLOR & 0xff);
374 sp_nv_read_opacity(value, &nv->guidehicolor);
375 for (GSList *l = nv->guides; l != NULL; l = l->next) {
376 g_object_set(G_OBJECT(l->data), "hicolor", nv->guidehicolor, NULL);
377 }
378 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
379 break;
380 case SP_ATTR_SHOWBORDER:
381 nv->showborder = (value) ? sp_str_to_bool (value) : TRUE;
382 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
383 break;
384 case SP_ATTR_BORDERLAYER:
385 nv->borderlayer = SP_BORDER_LAYER_BOTTOM;
386 if (value && !strcasecmp(value, "true")) nv->borderlayer = SP_BORDER_LAYER_TOP;
387 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
388 break;
389 case SP_ATTR_BORDERCOLOR:
390 nv->bordercolor = (nv->bordercolor & 0xff) | (DEFAULTBORDERCOLOR & 0xffffff00);
391 if (value) {
392 nv->bordercolor = (nv->bordercolor & 0xff) | sp_svg_read_color (value, nv->bordercolor);
393 }
394 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
395 break;
396 case SP_ATTR_BORDEROPACITY:
397 nv->bordercolor = (nv->bordercolor & 0xffffff00) | (DEFAULTBORDERCOLOR & 0xff);
398 sp_nv_read_opacity(value, &nv->bordercolor);
399 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
400 break;
401 case SP_ATTR_PAGECOLOR:
402 nv->pagecolor = (nv->pagecolor & 0xff) | (DEFAULTPAGECOLOR & 0xffffff00);
403 if (value) {
404 nv->pagecolor = (nv->pagecolor & 0xff) | sp_svg_read_color(value, nv->pagecolor);
405 }
406 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
407 break;
408 case SP_ATTR_INKSCAPE_PAGEOPACITY:
409 nv->pagecolor = (nv->pagecolor & 0xffffff00) | (DEFAULTPAGECOLOR & 0xff);
410 sp_nv_read_opacity(value, &nv->pagecolor);
411 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
412 break;
413 case SP_ATTR_INKSCAPE_PAGESHADOW:
414 nv->pageshadow = value? atoi(value) : 2; // 2 is the default
415 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
416 break;
417 case SP_ATTR_SHOWPAGESHADOW:
418 nv->showpageshadow = (value) ? sp_str_to_bool(value) : TRUE;
419 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
420 break;
421 case SP_ATTR_INKSCAPE_ZOOM:
422 nv->zoom = value ? g_ascii_strtod(value, NULL) : 0; // zero means not set
423 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
424 break;
425 case SP_ATTR_INKSCAPE_CX:
426 nv->cx = value ? g_ascii_strtod(value, NULL) : HUGE_VAL; // HUGE_VAL means not set
427 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
428 break;
429 case SP_ATTR_INKSCAPE_CY:
430 nv->cy = value ? g_ascii_strtod(value, NULL) : HUGE_VAL; // HUGE_VAL means not set
431 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
432 break;
433 case SP_ATTR_INKSCAPE_WINDOW_WIDTH:
434 nv->window_width = value? atoi(value) : -1; // -1 means not set
435 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
436 break;
437 case SP_ATTR_INKSCAPE_WINDOW_HEIGHT:
438 nv->window_height = value ? atoi(value) : -1; // -1 means not set
439 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
440 break;
441 case SP_ATTR_INKSCAPE_WINDOW_X:
442 nv->window_x = value ? atoi(value) : 0;
443 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
444 break;
445 case SP_ATTR_INKSCAPE_WINDOW_Y:
446 nv->window_y = value ? atoi(value) : 0;
447 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
448 break;
449 case SP_ATTR_INKSCAPE_WINDOW_MAXIMIZED:
450 nv->window_maximized = value ? atoi(value) : 0;
451 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
452 break;
453 case SP_ATTR_INKSCAPE_SNAP_GLOBAL:
454 nv->snap_manager.snapprefs.setSnapEnabledGlobally(value ? sp_str_to_bool(value) : TRUE);
455 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
456 break;
457 case SP_ATTR_INKSCAPE_SNAP_BBOX:
458 nv->snap_manager.snapprefs.setSnapModeBBox(value ? sp_str_to_bool(value) : FALSE);
459 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
460 break;
461 case SP_ATTR_INKSCAPE_SNAP_NODES:
462 nv->snap_manager.snapprefs.setSnapModeNode(value ? sp_str_to_bool(value) : TRUE);
463 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
464 break;
465 case SP_ATTR_INKSCAPE_SNAP_CENTER:
466 nv->snap_manager.snapprefs.setIncludeItemCenter(value ? sp_str_to_bool(value) : FALSE);
467 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
468 break;
469 case SP_ATTR_INKSCAPE_SNAP_GRIDS:
470 nv->snap_manager.snapprefs.setSnapToGrids(value ? sp_str_to_bool(value) : TRUE);
471 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
472 break;
473 case SP_ATTR_INKSCAPE_SNAP_TO_GUIDES:
474 nv->snap_manager.snapprefs.setSnapToGuides(value ? sp_str_to_bool(value) : TRUE);
475 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
476 break;
477 case SP_ATTR_INKSCAPE_SNAP_SMOOTH_NODES:
478 nv->snap_manager.snapprefs.setSnapSmoothNodes(value ? sp_str_to_bool(value) : FALSE);
479 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
480 break;
481 case SP_ATTR_INKSCAPE_SNAP_LINE_MIDPOINTS:
482 nv->snap_manager.snapprefs.setSnapLineMidpoints(value ? sp_str_to_bool(value) : FALSE);
483 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
484 break;
485 case SP_ATTR_INKSCAPE_SNAP_OBJECT_MIDPOINTS:
486 nv->snap_manager.snapprefs.setSnapObjectMidpoints(value ? sp_str_to_bool(value) : FALSE);
487 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
488 break;
489 case SP_ATTR_INKSCAPE_SNAP_BBOX_EDGE_MIDPOINTS:
490 nv->snap_manager.snapprefs.setSnapBBoxEdgeMidpoints(value ? sp_str_to_bool(value) : FALSE);
491 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
492 break;
493 case SP_ATTR_INKSCAPE_SNAP_BBOX_MIDPOINTS:
494 nv->snap_manager.snapprefs.setSnapBBoxMidpoints(value ? sp_str_to_bool(value) : FALSE);
495 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
496 break;
497 case SP_ATTR_INKSCAPE_SNAP_FROM_GUIDE:
498 nv->snap_manager.snapprefs.setSnapModeGuide(value ? sp_str_to_bool(value) : TRUE);
499 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
500 break;
501 case SP_ATTR_INKSCAPE_SNAP_INTERS_PATHS:
502 nv->snap_manager.snapprefs.setSnapIntersectionCS(value ? sp_str_to_bool(value) : FALSE);
503 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
504 break;
505 case SP_ATTR_INKSCAPE_OBJECT_PATHS:
506 nv->snap_manager.snapprefs.setSnapToItemPath(value ? sp_str_to_bool(value) : FALSE);
507 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
508 break;
509 case SP_ATTR_INKSCAPE_OBJECT_NODES:
510 nv->snap_manager.snapprefs.setSnapToItemNode(value ? sp_str_to_bool(value) : FALSE);
511 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
512 break;
513 case SP_ATTR_INKSCAPE_BBOX_PATHS:
514 nv->snap_manager.snapprefs.setSnapToBBoxPath(value ? sp_str_to_bool(value) : FALSE);
515 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
516 break;
517 case SP_ATTR_INKSCAPE_BBOX_NODES:
518 nv->snap_manager.snapprefs.setSnapToBBoxNode(value ? sp_str_to_bool(value) : FALSE);
519 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
520 break;
521 case SP_ATTR_INKSCAPE_SNAP_PAGE:
522 nv->snap_manager.snapprefs.setSnapToPageBorder(value ? sp_str_to_bool(value) : FALSE);
523 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
524 break;
525 case SP_ATTR_INKSCAPE_CURRENT_LAYER:
526 nv->default_layer_id = value ? g_quark_from_string(value) : 0;
527 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
528 break;
529 case SP_ATTR_INKSCAPE_CONNECTOR_SPACING:
530 nv->connector_spacing = value ? g_ascii_strtod(value, NULL) :
531 defaultConnSpacing;
532 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
533 break;
534 case SP_ATTR_INKSCAPE_DOCUMENT_UNITS: {
535 /* The default unit if the document doesn't override this: e.g. for files saved as
536 * `plain SVG', or non-inkscape files, or files created by an inkscape 0.40 &
537 * earlier.
538 *
539 * Here we choose `px': useful for screen-destined SVGs, and fewer bug reports
540 * about "not the same numbers as what's in the SVG file" (at least for documents
541 * without a viewBox attribute on the root <svg> element). Similarly, it's also
542 * the most reliable unit (i.e. least likely to be wrong in different viewing
543 * conditions) for viewBox-less SVG files given that it's the unit that inkscape
544 * uses for all coordinates.
545 *
546 * For documents that do have a viewBox attribute on the root <svg> element, it
547 * might be better if we used either viewBox coordinates or if we used the unit of
548 * say the width attribute of the root <svg> element. However, these pose problems
549 * in that they aren't in general absolute units as currently required by
550 * doc_units.
551 */
552 SPUnit const *new_unit = &sp_unit_get_by_id(SP_UNIT_PX);
554 if (value) {
555 SPUnit const *const req_unit = sp_unit_get_by_abbreviation(value);
556 if ( req_unit == NULL ) {
557 g_warning("Unrecognized unit `%s'", value);
558 /* fixme: Document errors should be reported in the status bar or
559 * the like (e.g. as per
560 * http://www.w3.org/TR/SVG11/implnote.html#ErrorProcessing); g_log
561 * should be only for programmer errors. */
562 } else if ( req_unit->base == SP_UNIT_ABSOLUTE ||
563 req_unit->base == SP_UNIT_DEVICE ) {
564 new_unit = req_unit;
565 } else {
566 g_warning("Document units must be absolute like `mm', `pt' or `px', but found `%s'",
567 value);
568 /* fixme: Don't use g_log (see above). */
569 }
570 }
571 nv->doc_units = new_unit;
572 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
573 break;
574 }
575 default:
576 if (((SPObjectClass *) (parent_class))->set) {
577 ((SPObjectClass *) (parent_class))->set(object, key, value);
578 }
579 break;
580 }
581 }
583 /**
584 * 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,
585 * otherwise only add it to the specified desktop.
586 */
587 static Inkscape::CanvasGrid*
588 sp_namedview_add_grid(SPNamedView *nv, Inkscape::XML::Node *repr, SPDesktop *desktop) {
589 Inkscape::CanvasGrid* grid = NULL;
590 //check if namedview already has an object for this grid
591 for (GSList *l = nv->grids; l != NULL; l = l->next) {
592 Inkscape::CanvasGrid* g = (Inkscape::CanvasGrid*) l->data;
593 if (repr == g->repr) {
594 grid = g;
595 break;
596 }
597 }
599 if (!grid) {
600 //create grid object
601 Inkscape::GridType gridtype = Inkscape::CanvasGrid::getGridTypeFromSVGName(repr->attribute("type"));
602 if (!nv->document) {
603 g_warning("sp_namedview_add_grid - how come doc is null here?!");
604 return NULL;
605 }
606 grid = Inkscape::CanvasGrid::NewGrid(nv, repr, nv->document, gridtype);
607 nv->grids = g_slist_append(nv->grids, grid);
608 }
610 if (!desktop) {
611 //add canvasitem to all desktops
612 for (GSList *l = nv->views; l != NULL; l = l->next) {
613 SPDesktop *dt = static_cast<SPDesktop*>(l->data);
614 grid->createCanvasItem(dt);
615 }
616 } else {
617 //add canvasitem only for specified desktop
618 grid->createCanvasItem(desktop);
619 }
621 return grid;
622 }
624 static void sp_namedview_child_added(SPObject *object, Inkscape::XML::Node *child, Inkscape::XML::Node *ref)
625 {
626 SPNamedView *nv = (SPNamedView *) object;
628 if (((SPObjectClass *) (parent_class))->child_added) {
629 (* ((SPObjectClass *) (parent_class))->child_added)(object, child, ref);
630 }
632 if (!strcmp(child->name(), "inkscape:grid")) {
633 sp_namedview_add_grid(nv, child, NULL);
634 } else {
635 SPObject *no = object->document->getObjectByRepr(child);
636 if ( !SP_IS_OBJECT(no) )
637 return;
639 if (SP_IS_GUIDE(no)) {
640 SPGuide *g = (SPGuide *) no;
641 nv->guides = g_slist_prepend(nv->guides, g);
642 g_object_set(G_OBJECT(g), "color", nv->guidecolor, "hicolor", nv->guidehicolor, NULL);
643 if (nv->editable) {
644 for (GSList *l = nv->views; l != NULL; l = l->next) {
645 sp_guide_show(g, static_cast<SPDesktop*>(l->data)->guides, (GCallback) sp_dt_guide_event);
646 if (static_cast<SPDesktop*>(l->data)->guides_active)
647 sp_guide_sensitize(g,
648 sp_desktop_canvas(static_cast<SPDesktop*> (l->data)),
649 TRUE);
650 sp_namedview_show_single_guide(SP_GUIDE(g), nv->showguides);
651 }
652 }
653 }
654 }
655 }
657 static void sp_namedview_remove_child(SPObject *object, Inkscape::XML::Node *child)
658 {
659 SPNamedView *nv = (SPNamedView *) object;
661 if (!strcmp(child->name(), "inkscape:grid")) {
662 for ( GSList *iter = nv->grids ; iter ; iter = iter->next ) {
663 Inkscape::CanvasGrid *gr = (Inkscape::CanvasGrid *)iter->data;
664 if ( gr->repr == child ) {
665 delete gr;
666 nv->grids = g_slist_remove_link(nv->grids, iter);
667 break;
668 }
669 }
670 } else {
671 GSList **ref = &nv->guides;
672 for ( GSList *iter = nv->guides ; iter ; iter = iter->next ) {
673 if ( SP_OBJECT_REPR((SPObject *)iter->data) == child ) {
674 *ref = iter->next;
675 iter->next = NULL;
676 g_slist_free_1(iter);
677 break;
678 }
679 ref = &iter->next;
680 }
681 }
683 if (((SPObjectClass *) (parent_class))->remove_child) {
684 (* ((SPObjectClass *) (parent_class))->remove_child)(object, child);
685 }
686 }
688 static Inkscape::XML::Node *sp_namedview_write(SPObject *object, Inkscape::XML::Document *doc, Inkscape::XML::Node *repr, guint flags)
689 {
690 if ( ( flags & SP_OBJECT_WRITE_EXT ) &&
691 repr != SP_OBJECT_REPR(object) )
692 {
693 if (repr) {
694 repr->mergeFrom(SP_OBJECT_REPR(object), "id");
695 } else {
696 repr = SP_OBJECT_REPR(object)->duplicate(doc);
697 }
698 }
700 return repr;
701 }
703 void SPNamedView::show(SPDesktop *desktop)
704 {
705 for (GSList *l = guides; l != NULL; l = l->next) {
706 sp_guide_show(SP_GUIDE(l->data), desktop->guides, (GCallback) sp_dt_guide_event);
707 if (desktop->guides_active) {
708 sp_guide_sensitize(SP_GUIDE(l->data), sp_desktop_canvas(desktop), TRUE);
709 }
710 sp_namedview_show_single_guide(SP_GUIDE(l->data), showguides);
711 }
713 views = g_slist_prepend(views, desktop);
715 // generate grids specified in SVG:
716 Inkscape::XML::Node *repr = SP_OBJECT_REPR(this);
717 if (repr) {
718 for (Inkscape::XML::Node * child = repr->firstChild() ; child != NULL; child = child->next() ) {
719 if (!strcmp(child->name(), "inkscape:grid")) {
720 sp_namedview_add_grid(this, child, desktop);
721 }
722 }
723 }
725 desktop->showGrids(grids_visible, false);
726 }
728 #define MIN_ONSCREEN_DISTANCE 50
730 /*
731 * Restores window geometry from the document settings or defaults in prefs
732 */
733 void sp_namedview_window_from_document(SPDesktop *desktop)
734 {
735 SPNamedView *nv = desktop->namedview;
736 Inkscape::Preferences *prefs = Inkscape::Preferences::get();
737 bool geometry_from_file = prefs->getBool("/options/savewindowgeometry/value");
739 // restore window size and position stored with the document
740 if (geometry_from_file) {
741 if (nv->window_maximized) {
742 Gtk::Window *win = desktop->getToplevel();
743 if (win){
744 win->maximize();
745 }
746 } else {
747 gint w = MIN(gdk_screen_width(), nv->window_width);
748 gint h = MIN(gdk_screen_height(), nv->window_height);
749 // prevent the window from moving off the screen to the right or to the bottom
750 gint x = MIN(gdk_screen_width() - MIN_ONSCREEN_DISTANCE, nv->window_x);
751 gint y = MIN(gdk_screen_height() - MIN_ONSCREEN_DISTANCE, nv->window_y);
752 // prevent the window from moving off the screen to the left or to the top
753 x = MAX(MIN_ONSCREEN_DISTANCE - nv->window_width, x);
754 y = MAX(MIN_ONSCREEN_DISTANCE - nv->window_height, y);
755 if (w>0 && h>0) {
756 desktop->setWindowSize(w, h);
757 desktop->setWindowPosition(Geom::Point(x, y));
758 }
759 }
760 }
762 // restore zoom and view
763 if (nv->zoom != 0 && nv->zoom != HUGE_VAL && !IS_NAN(nv->zoom)
764 && nv->cx != HUGE_VAL && !IS_NAN(nv->cx)
765 && nv->cy != HUGE_VAL && !IS_NAN(nv->cy)) {
766 desktop->zoom_absolute(nv->cx, nv->cy, nv->zoom);
767 } else if (sp_desktop_document(desktop)) { // document without saved zoom, zoom to its page
768 desktop->zoom_page();
769 }
771 // cancel any history of zooms up to this point
772 if (desktop->zooms_past) {
773 g_list_free(desktop->zooms_past);
774 desktop->zooms_past = NULL;
775 }
776 }
778 void sp_namedview_update_layers_from_document (SPDesktop *desktop)
779 {
780 SPObject *layer = NULL;
781 SPDocument *document = desktop->doc();
782 SPNamedView *nv = desktop->namedview;
783 if ( nv->default_layer_id != 0 ) {
784 layer = document->getObjectById(g_quark_to_string(nv->default_layer_id));
785 }
786 // don't use that object if it's not at least group
787 if ( !layer || !SP_IS_GROUP(layer) ) {
788 layer = NULL;
789 }
790 // if that didn't work out, look for the topmost layer
791 if (!layer) {
792 SPObject *iter = sp_object_first_child(SP_DOCUMENT_ROOT(document));
793 for ( ; iter ; iter = SP_OBJECT_NEXT(iter) ) {
794 if (desktop->isLayer(iter)) {
795 layer = iter;
796 }
797 }
798 }
799 if (layer) {
800 desktop->setCurrentLayer(layer);
801 }
803 // FIXME: find a better place to do this
804 desktop->event_log->updateUndoVerbs();
805 }
807 void sp_namedview_document_from_window(SPDesktop *desktop)
808 {
809 Inkscape::Preferences *prefs = Inkscape::Preferences::get();
810 bool save_geometry_in_file = prefs->getBool("/options/savewindowgeometry/value", 0);
811 Inkscape::XML::Node *view = SP_OBJECT_REPR(desktop->namedview);
812 Geom::Rect const r = desktop->get_display_area();
814 // saving window geometry is not undoable
815 bool saved = sp_document_get_undo_sensitive(sp_desktop_document(desktop));
816 sp_document_set_undo_sensitive(sp_desktop_document(desktop), false);
818 sp_repr_set_svg_double(view, "inkscape:zoom", desktop->current_zoom());
819 sp_repr_set_svg_double(view, "inkscape:cx", r.midpoint()[Geom::X]);
820 sp_repr_set_svg_double(view, "inkscape:cy", r.midpoint()[Geom::Y]);
822 if (save_geometry_in_file) {
823 gint w, h, x, y;
824 desktop->getWindowGeometry(x, y, w, h);
825 sp_repr_set_int(view, "inkscape:window-width", w);
826 sp_repr_set_int(view, "inkscape:window-height", h);
827 sp_repr_set_int(view, "inkscape:window-x", x);
828 sp_repr_set_int(view, "inkscape:window-y", y);
829 sp_repr_set_int(view, "inkscape:window-maximized", desktop->is_maximized());
830 }
832 view->setAttribute("inkscape:current-layer", desktop->currentLayer()->getId());
834 // restore undoability
835 sp_document_set_undo_sensitive(sp_desktop_document(desktop), saved);
836 }
838 void SPNamedView::hide(SPDesktop const *desktop)
839 {
840 g_assert(desktop != NULL);
841 g_assert(g_slist_find(views, desktop));
843 for (GSList *l = guides; l != NULL; l = l->next) {
844 sp_guide_hide(SP_GUIDE(l->data), sp_desktop_canvas(desktop));
845 }
847 views = g_slist_remove(views, desktop);
848 }
850 void SPNamedView::activateGuides(gpointer desktop, gboolean active)
851 {
852 g_assert(desktop != NULL);
853 g_assert(g_slist_find(views, desktop));
855 SPDesktop *dt = static_cast<SPDesktop*>(desktop);
857 for (GSList *l = guides; l != NULL; l = l->next) {
858 sp_guide_sensitize(SP_GUIDE(l->data), sp_desktop_canvas(dt), active);
859 }
860 }
862 static void sp_namedview_setup_guides(SPNamedView *nv)
863 {
864 for (GSList *l = nv->guides; l != NULL; l = l->next) {
865 sp_namedview_show_single_guide(SP_GUIDE(l->data), nv->showguides);
866 }
867 }
869 static void sp_namedview_show_single_guide(SPGuide* guide, bool show)
870 {
871 for (GSList *v = guide->views; v != NULL; v = v->next) {
872 if (show) {
873 sp_canvas_item_show(SP_CANVAS_ITEM(v->data));
874 sp_canvas_item_show(SP_CANVAS_ITEM(SP_GUIDELINE(v->data)->origin));
875 } else {
876 sp_canvas_item_hide(SP_CANVAS_ITEM(v->data));
877 sp_canvas_item_hide(SP_CANVAS_ITEM(SP_GUIDELINE(v->data)->origin));
878 }
879 }
880 }
882 void sp_namedview_toggle_guides(SPDocument *doc, Inkscape::XML::Node *repr)
883 {
884 unsigned int v;
885 unsigned int set = sp_repr_get_boolean(repr, "showguides", &v);
886 if (!set) { // hide guides if not specified, for backwards compatibility
887 v = FALSE;
888 } else {
889 v = !v;
890 }
892 bool saved = sp_document_get_undo_sensitive(doc);
893 sp_document_set_undo_sensitive(doc, false);
894 sp_repr_set_boolean(repr, "showguides", v);
895 sp_document_set_undo_sensitive(doc, saved);
897 doc->setModifiedSinceSave();
898 }
900 void sp_namedview_show_grids(SPNamedView * namedview, bool show, bool dirty_document)
901 {
902 namedview->grids_visible = show;
904 SPDocument *doc = SP_OBJECT_DOCUMENT (namedview);
905 Inkscape::XML::Node *repr = SP_OBJECT_REPR(namedview);
907 bool saved = sp_document_get_undo_sensitive(doc);
908 sp_document_set_undo_sensitive(doc, false);
909 sp_repr_set_boolean(repr, "showgrid", namedview->grids_visible);
910 sp_document_set_undo_sensitive(doc, saved);
912 /* we don't want the document to get dirty on startup; that's when
913 we call this function with dirty_document = false */
914 if (dirty_document) {
915 doc->setModifiedSinceSave();
916 }
917 }
919 gchar const *SPNamedView::getName() const
920 {
921 SPException ex;
922 SP_EXCEPTION_INIT(&ex);
923 return sp_object_getAttribute(SP_OBJECT(this), "id", &ex);
924 }
926 guint SPNamedView::getViewCount()
927 {
928 return ++viewcount;
929 }
931 GSList const *SPNamedView::getViewList() const
932 {
933 return views;
934 }
936 /* This should be moved somewhere */
938 static gboolean sp_str_to_bool(const gchar *str)
939 {
940 if (str) {
941 if (!g_strcasecmp(str, "true") ||
942 !g_strcasecmp(str, "yes") ||
943 !g_strcasecmp(str, "y") ||
944 (atoi(str) != 0)) {
945 return TRUE;
946 }
947 }
949 return FALSE;
950 }
952 static gboolean sp_nv_read_opacity(const gchar *str, guint32 *color)
953 {
954 if (!str) {
955 return FALSE;
956 }
958 gchar *u;
959 gdouble v = g_ascii_strtod(str, &u);
960 if (!u) {
961 return FALSE;
962 }
963 v = CLAMP(v, 0.0, 1.0);
965 *color = (*color & 0xffffff00) | (guint32) floor(v * 255.9999);
967 return TRUE;
968 }
970 SPNamedView *sp_document_namedview(SPDocument *document, const gchar *id)
971 {
972 g_return_val_if_fail(document != NULL, NULL);
974 SPObject *nv = sp_item_group_get_child_by_name((SPGroup *) document->root, NULL, "sodipodi:namedview");
975 g_assert(nv != NULL);
977 if (id == NULL) {
978 return (SPNamedView *) nv;
979 }
981 while (nv && strcmp(nv->getId(), id)) {
982 nv = sp_item_group_get_child_by_name((SPGroup *) document->root, nv, "sodipodi:namedview");
983 }
985 return (SPNamedView *) nv;
986 }
988 /**
989 * Returns namedview's default metric.
990 */
991 SPMetric SPNamedView::getDefaultMetric() const
992 {
993 if (doc_units) {
994 return sp_unit_get_metric(doc_units);
995 } else {
996 return SP_PT;
997 }
998 }
1000 /**
1001 * Returns the first grid it could find that isEnabled(). Returns NULL, if none is enabled
1002 */
1003 Inkscape::CanvasGrid * sp_namedview_get_first_enabled_grid(SPNamedView *namedview)
1004 {
1005 for (GSList const * l = namedview->grids; l != NULL; l = l->next) {
1006 Inkscape::CanvasGrid * grid = (Inkscape::CanvasGrid*) l->data;
1007 if (grid->isEnabled())
1008 return grid;
1009 }
1011 return NULL;
1012 }
1014 void SPNamedView::translateGuides(Geom::Translate const &tr) {
1015 for (GSList *l = guides; l != NULL; l = l->next) {
1016 SPGuide &guide = *SP_GUIDE(l->data);
1017 Geom::Point point_on_line = guide.point_on_line;
1018 point_on_line[0] += tr[0];
1019 point_on_line[1] += tr[1];
1020 sp_guide_moveto(guide, point_on_line, true);
1021 }
1022 }
1024 void SPNamedView::scrollAllDesktops(double dx, double dy, bool is_scrolling) {
1025 for(GSList *l = views; l; l = l->next) {
1026 SPDesktop *desktop = static_cast<SPDesktop *>(l->data);
1027 desktop->scroll_world_in_svg_coords(dx, dy, is_scrolling);
1028 }
1029 }
1032 /*
1033 Local Variables:
1034 mode:c++
1035 c-file-style:"stroustrup"
1036 c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
1037 indent-tabs-mode:nil
1038 fill-column:99
1039 End:
1040 */
1041 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=99 :