c6e6b872b7c69ac074ab9a7efeda14d7d857a6cf
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) 1999-2005 Authors
11 * Copyright (C) 2000-2001 Ximian, Inc.
12 *
13 * Released under GNU GPL, read the file 'COPYING' for more information
14 */
16 #include "config.h"
21 #include "display/canvas-grid.h"
22 #include "helper/units.h"
23 #include "svg/svg.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 "sp-guide.h"
30 #include "sp-item-group.h"
31 #include "sp-namedview.h"
32 #include "prefs-utils.h"
33 #include "desktop.h"
35 #include "isnan.h" //temp fox for isnan(). include last
37 #define DEFAULTTOLERANCE 0.4
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::Node *repr, guint flags);
56 static void sp_namedview_setup_guides(SPNamedView * nv);
58 static void sp_namedview_setup_grid(SPNamedView * nv);
59 static void sp_namedview_setup_grid_item(SPNamedView * nv, SPCanvasItem * item);
61 static gboolean sp_str_to_bool(const gchar *str);
62 static gboolean sp_nv_read_length(const gchar *str, guint base, gdouble *val, const SPUnit **unit);
63 static gboolean sp_nv_read_opacity(const gchar *str, guint32 *color);
65 static SPObjectGroupClass * parent_class;
67 GType
68 sp_namedview_get_type()
69 {
70 static GType namedview_type = 0;
71 if (!namedview_type) {
72 GTypeInfo namedview_info = {
73 sizeof(SPNamedViewClass),
74 NULL, /* base_init */
75 NULL, /* base_finalize */
76 (GClassInitFunc) sp_namedview_class_init,
77 NULL, /* class_finalize */
78 NULL, /* class_data */
79 sizeof(SPNamedView),
80 16, /* n_preallocs */
81 (GInstanceInitFunc) sp_namedview_init,
82 NULL, /* value_table */
83 };
84 namedview_type = g_type_register_static(SP_TYPE_OBJECTGROUP, "SPNamedView", &namedview_info, (GTypeFlags)0);
85 }
86 return namedview_type;
87 }
89 static void sp_namedview_class_init(SPNamedViewClass * klass)
90 {
91 GObjectClass * gobject_class;
92 SPObjectClass * sp_object_class;
94 gobject_class = (GObjectClass *) klass;
95 sp_object_class = (SPObjectClass *) klass;
97 parent_class = (SPObjectGroupClass*) g_type_class_ref(SP_TYPE_OBJECTGROUP);
99 sp_object_class->build = sp_namedview_build;
100 sp_object_class->release = sp_namedview_release;
101 sp_object_class->set = sp_namedview_set;
102 sp_object_class->child_added = sp_namedview_child_added;
103 sp_object_class->remove_child = sp_namedview_remove_child;
104 sp_object_class->write = sp_namedview_write;
105 }
107 static void sp_namedview_init(SPNamedView *nv)
108 {
109 nv->editable = TRUE;
110 nv->showgrid = FALSE;
111 nv->showguides = TRUE;
112 nv->showborder = TRUE;
113 nv->showpageshadow = TRUE;
115 nv->guides = NULL;
116 nv->viewcount = 0;
118 nv->default_layer_id = 0;
120 new (&nv->grid_snapper) Inkscape::GridSnapper(nv, 0);
121 new (&nv->guide_snapper) Inkscape::GuideSnapper(nv, 0);
122 new (&nv->object_snapper) Inkscape::ObjectSnapper(nv, 0);
123 }
125 static void sp_namedview_build(SPObject *object, SPDocument *document, Inkscape::XML::Node *repr)
126 {
127 SPNamedView *nv = (SPNamedView *) object;
128 SPObjectGroup *og = (SPObjectGroup *) object;
130 if (((SPObjectClass *) (parent_class))->build) {
131 (* ((SPObjectClass *) (parent_class))->build)(object, document, repr);
132 }
134 sp_object_read_attr(object, "inkscape:document-units");
135 sp_object_read_attr(object, "viewonly");
136 sp_object_read_attr(object, "showgrid");
137 sp_object_read_attr(object, "showguides");
138 sp_object_read_attr(object, "gridtolerance");
139 sp_object_read_attr(object, "guidetolerance");
140 sp_object_read_attr(object, "objecttolerance");
141 sp_object_read_attr(object, "inkscape:has_abs_tolerance");
142 sp_object_read_attr(object, "gridoriginx");
143 sp_object_read_attr(object, "gridoriginy");
144 sp_object_read_attr(object, "gridspacingx");
145 sp_object_read_attr(object, "gridspacingy");
146 sp_object_read_attr(object, "gridempspacing");
147 sp_object_read_attr(object, "gridcolor");
148 sp_object_read_attr(object, "gridempcolor");
149 sp_object_read_attr(object, "gridopacity");
150 sp_object_read_attr(object, "gridempopacity");
151 sp_object_read_attr(object, "guidecolor");
152 sp_object_read_attr(object, "guideopacity");
153 sp_object_read_attr(object, "guidehicolor");
154 sp_object_read_attr(object, "guidehiopacity");
155 sp_object_read_attr(object, "showborder");
156 sp_object_read_attr(object, "inkscape:showpageshadow");
157 sp_object_read_attr(object, "borderlayer");
158 sp_object_read_attr(object, "bordercolor");
159 sp_object_read_attr(object, "borderopacity");
160 sp_object_read_attr(object, "pagecolor");
161 sp_object_read_attr(object, "inkscape:pageopacity");
162 sp_object_read_attr(object, "inkscape:pageshadow");
163 sp_object_read_attr(object, "inkscape:zoom");
164 sp_object_read_attr(object, "inkscape:cx");
165 sp_object_read_attr(object, "inkscape:cy");
166 sp_object_read_attr(object, "inkscape:window-width");
167 sp_object_read_attr(object, "inkscape:window-height");
168 sp_object_read_attr(object, "inkscape:window-x");
169 sp_object_read_attr(object, "inkscape:window-y");
170 sp_object_read_attr(object, "inkscape:grid-bbox");
171 sp_object_read_attr(object, "inkscape:guide-bbox");
172 sp_object_read_attr(object, "inkscape:object-bbox");
173 sp_object_read_attr(object, "inkscape:grid-points");
174 sp_object_read_attr(object, "inkscape:guide-points");
175 sp_object_read_attr(object, "inkscape:object-points");
176 sp_object_read_attr(object, "inkscape:object-paths");
177 sp_object_read_attr(object, "inkscape:object-nodes");
178 sp_object_read_attr(object, "inkscape:current-layer");
180 /* Construct guideline list */
182 for (SPObject *o = sp_object_first_child(SP_OBJECT(og)) ; o != NULL; o = SP_OBJECT_NEXT(o) ) {
183 if (SP_IS_GUIDE(o)) {
184 SPGuide * g = SP_GUIDE(o);
185 nv->guides = g_slist_prepend(nv->guides, g);
186 g_object_set(G_OBJECT(g), "color", nv->guidecolor, "hicolor", nv->guidehicolor, NULL);
187 }
188 }
189 }
191 static void sp_namedview_release(SPObject *object)
192 {
193 SPNamedView *namedview = (SPNamedView *) object;
195 if (namedview->guides) {
196 g_slist_free(namedview->guides);
197 namedview->guides = NULL;
198 }
200 while (namedview->gridviews) {
201 gtk_object_unref(GTK_OBJECT(namedview->gridviews->data));
202 namedview->gridviews = g_slist_remove(namedview->gridviews, namedview->gridviews->data);
203 }
205 namedview->grid_snapper.~GridSnapper();
206 namedview->guide_snapper.~GuideSnapper();
207 namedview->object_snapper.~ObjectSnapper();
209 if (((SPObjectClass *) parent_class)->release) {
210 ((SPObjectClass *) parent_class)->release(object);
211 }
212 }
214 static void sp_namedview_set(SPObject *object, unsigned int key, const gchar *value)
215 {
216 SPNamedView *nv = SP_NAMEDVIEW(object);
217 SPUnit const &px = sp_unit_get_by_id(SP_UNIT_PX);
219 switch (key) {
220 case SP_ATTR_VIEWONLY:
221 nv->editable = (!value);
222 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
223 break;
224 case SP_ATTR_SHOWGRID:
225 nv->showgrid = sp_str_to_bool(value);
226 sp_namedview_setup_grid(nv);
227 if (!nv->showgrid) { // grid goes off, disable snaps even if they are turned on
228 nv->grid_snapper.setSnapTo(Inkscape::Snapper::BBOX_POINT, false);
229 nv->grid_snapper.setSnapTo(Inkscape::Snapper::SNAP_POINT, false);
230 } else { // grid goes on, enable snaps if they are turned on
231 nv->grid_snapper.setSnapTo(Inkscape::Snapper::BBOX_POINT, nv->snap_grid_bbox);
232 nv->grid_snapper.setSnapTo(Inkscape::Snapper::SNAP_POINT, nv->snap_grid_point);
233 }
234 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
235 break;
236 case SP_ATTR_SHOWGUIDES:
237 if (!value) { // show guides if not specified, for backwards compatibility
238 nv->showguides = TRUE;
239 } else {
240 nv->showguides = sp_str_to_bool(value);
241 }
242 if (!nv->showguides) { // guides go off, disable snaps even if they are turned on
243 nv->guide_snapper.setSnapTo(Inkscape::Snapper::BBOX_POINT, false);
244 nv->guide_snapper.setSnapTo(Inkscape::Snapper::SNAP_POINT, false);
245 } else { // guides go on, enable snaps if they are turned on
246 nv->guide_snapper.setSnapTo(Inkscape::Snapper::BBOX_POINT, nv->snap_guide_bbox);
247 nv->guide_snapper.setSnapTo(Inkscape::Snapper::SNAP_POINT, nv->snap_guide_point);
248 }
249 sp_namedview_setup_guides(nv);
250 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
251 break;
252 case SP_ATTR_GRIDTOLERANCE:
253 nv->gridtoleranceunit = &px;
254 nv->gridtolerance = DEFAULTTOLERANCE;
255 if (value) {
256 sp_nv_read_length(value, SP_UNIT_ABSOLUTE | SP_UNIT_DEVICE, &nv->gridtolerance, &nv->gridtoleranceunit);
257 }
258 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
259 break;
260 case SP_ATTR_GUIDETOLERANCE:
261 nv->guidetoleranceunit = &px;
262 nv->guidetolerance = DEFAULTTOLERANCE;
263 if (value) {
264 sp_nv_read_length(value, SP_UNIT_ABSOLUTE | SP_UNIT_DEVICE, &nv->guidetolerance, &nv->guidetoleranceunit);
265 }
266 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
267 break;
268 case SP_ATTR_OBJECTTOLERANCE:
269 nv->objecttoleranceunit = &px;
270 nv->objecttolerance = DEFAULTTOLERANCE;
271 if (value) {
272 sp_nv_read_length(value, SP_UNIT_ABSOLUTE | SP_UNIT_DEVICE, &nv->objecttolerance, &nv->objecttoleranceunit);
273 }
274 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
275 break;
276 case SP_ATTR_ABS_TOLERANCE:
277 if (!value)
278 nv->has_abs_tolerance = true;
279 else
280 nv->has_abs_tolerance = (sp_str_to_bool (value) == TRUE);
281 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
282 break;
283 case SP_ATTR_GRIDORIGINX:
284 case SP_ATTR_GRIDORIGINY:
285 {
286 unsigned const d = (key == SP_ATTR_GRIDORIGINY);
287 nv->gridunit = nv->doc_units;
288 nv->gridorigin[d] = 0.0;
289 if (value) {
290 sp_nv_read_length(value, SP_UNIT_ABSOLUTE | SP_UNIT_DEVICE, &nv->gridorigin[d], &nv->gridunit);
291 }
292 nv->gridorigin[d] = sp_units_get_pixels(nv->gridorigin[d], *(nv->gridunit));
293 sp_namedview_setup_grid(nv);
294 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
295 break;
296 }
297 case SP_ATTR_GRIDSPACINGX:
298 case SP_ATTR_GRIDSPACINGY:
299 {
300 unsigned const d = (key == SP_ATTR_GRIDSPACINGY);
301 nv->gridunit = nv->doc_units;
302 nv->gridspacing[d] = 1.0;
303 if (value) {
304 sp_nv_read_length(value, SP_UNIT_ABSOLUTE | SP_UNIT_DEVICE, &nv->gridspacing[d], &nv->gridunit);
305 }
306 nv->gridspacing[d] = sp_units_get_pixels(nv->gridspacing[d], *(nv->gridunit));
307 sp_namedview_setup_grid(nv);
308 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
309 break;
310 }
311 case SP_ATTR_GRIDCOLOR:
312 nv->gridcolor = (nv->gridcolor & 0xff) | (DEFAULTGRIDCOLOR & 0xffffff00);
313 if (value) {
314 nv->gridcolor = (nv->gridcolor & 0xff) | sp_svg_read_color(value, nv->gridcolor);
315 }
316 sp_namedview_setup_grid(nv);
317 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
318 break;
319 case SP_ATTR_GRIDEMPCOLOR:
320 nv->gridempcolor = (nv->gridempcolor & 0xff) | (DEFAULTGRIDEMPCOLOR & 0xffffff00);
321 if (value) {
322 nv->gridempcolor = (nv->gridempcolor & 0xff) | sp_svg_read_color(value, nv->gridempcolor);
323 }
324 sp_namedview_setup_grid(nv);
325 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
326 break;
327 case SP_ATTR_GRIDOPACITY:
328 nv->gridcolor = (nv->gridcolor & 0xffffff00) | (DEFAULTGRIDCOLOR & 0xff);
329 sp_nv_read_opacity(value, &nv->gridcolor);
330 sp_namedview_setup_grid(nv);
331 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
332 break;
333 case SP_ATTR_GRIDEMPOPACITY:
334 nv->gridempcolor = (nv->gridempcolor & 0xffffff00) | (DEFAULTGRIDEMPCOLOR & 0xff);
335 sp_nv_read_opacity(value, &nv->gridempcolor);
336 sp_namedview_setup_grid(nv);
337 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
338 break;
339 case SP_ATTR_GRIDEMPSPACING:
340 nv->gridempspacing = DEFAULTGRIDEMPSPACING;
341 if (value != NULL)
342 nv->gridempspacing = atoi(value);
343 sp_namedview_setup_grid(nv);
344 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
345 break;
346 case SP_ATTR_GUIDECOLOR:
347 nv->guidecolor = (nv->guidecolor & 0xff) | (DEFAULTGUIDECOLOR & 0xffffff00);
348 if (value) {
349 nv->guidecolor = (nv->guidecolor & 0xff) | sp_svg_read_color(value, nv->guidecolor);
350 }
351 for (GSList *l = nv->guides; l != NULL; l = l->next) {
352 g_object_set(G_OBJECT(l->data), "color", nv->guidecolor, NULL);
353 }
354 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
355 break;
356 case SP_ATTR_GUIDEOPACITY:
357 nv->guidecolor = (nv->guidecolor & 0xffffff00) | (DEFAULTGUIDECOLOR & 0xff);
358 sp_nv_read_opacity(value, &nv->guidecolor);
359 for (GSList *l = nv->guides; l != NULL; l = l->next) {
360 g_object_set(G_OBJECT(l->data), "color", nv->guidecolor, NULL);
361 }
362 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
363 break;
364 case SP_ATTR_GUIDEHICOLOR:
365 nv->guidehicolor = (nv->guidehicolor & 0xff) | (DEFAULTGUIDEHICOLOR & 0xffffff00);
366 if (value) {
367 nv->guidehicolor = (nv->guidehicolor & 0xff) | sp_svg_read_color(value, nv->guidehicolor);
368 }
369 for (GSList *l = nv->guides; l != NULL; l = l->next) {
370 g_object_set(G_OBJECT(l->data), "hicolor", nv->guidehicolor, NULL);
371 }
372 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
373 break;
374 case SP_ATTR_GUIDEHIOPACITY:
375 nv->guidehicolor = (nv->guidehicolor & 0xffffff00) | (DEFAULTGUIDEHICOLOR & 0xff);
376 sp_nv_read_opacity(value, &nv->guidehicolor);
377 for (GSList *l = nv->guides; l != NULL; l = l->next) {
378 g_object_set(G_OBJECT(l->data), "hicolor", nv->guidehicolor, NULL);
379 }
380 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
381 break;
382 case SP_ATTR_SHOWBORDER:
383 nv->showborder = (value) ? sp_str_to_bool (value) : TRUE;
384 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
385 break;
386 case SP_ATTR_BORDERLAYER:
387 nv->borderlayer = SP_BORDER_LAYER_BOTTOM;
388 if (value && !strcasecmp(value, "true")) nv->borderlayer = SP_BORDER_LAYER_TOP;
389 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
390 break;
391 case SP_ATTR_BORDERCOLOR:
392 nv->bordercolor = (nv->bordercolor & 0xff) | (DEFAULTBORDERCOLOR & 0xffffff00);
393 if (value) {
394 nv->bordercolor = (nv->bordercolor & 0xff) | sp_svg_read_color (value, nv->bordercolor);
395 }
396 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
397 break;
398 case SP_ATTR_BORDEROPACITY:
399 nv->bordercolor = (nv->bordercolor & 0xffffff00) | (DEFAULTBORDERCOLOR & 0xff);
400 sp_nv_read_opacity(value, &nv->bordercolor);
401 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
402 break;
403 case SP_ATTR_PAGECOLOR:
404 nv->pagecolor = (nv->pagecolor & 0xff) | (DEFAULTPAGECOLOR & 0xffffff00);
405 if (value) {
406 nv->pagecolor = (nv->pagecolor & 0xff) | sp_svg_read_color(value, nv->pagecolor);
407 }
408 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
409 break;
410 case SP_ATTR_INKSCAPE_PAGEOPACITY:
411 nv->pagecolor = (nv->pagecolor & 0xffffff00) | (DEFAULTPAGECOLOR & 0xff);
412 sp_nv_read_opacity(value, &nv->pagecolor);
413 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
414 break;
415 case SP_ATTR_INKSCAPE_PAGESHADOW:
416 nv->pageshadow = value? atoi(value) : 2; // 2 is the default
417 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
418 break;
419 case SP_ATTR_SHOWPAGESHADOW:
420 nv->showpageshadow = (value) ? sp_str_to_bool(value) : TRUE;
421 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
422 break;
423 case SP_ATTR_INKSCAPE_ZOOM:
424 nv->zoom = value ? g_ascii_strtod(value, NULL) : 0; // zero means not set
425 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
426 break;
427 case SP_ATTR_INKSCAPE_CX:
428 nv->cx = 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_CY:
432 nv->cy = value ? g_ascii_strtod(value, NULL) : HUGE_VAL; // HUGE_VAL means not set
433 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
434 break;
435 case SP_ATTR_INKSCAPE_WINDOW_WIDTH:
436 nv->window_width = value? atoi(value) : -1; // -1 means not set
437 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
438 break;
439 case SP_ATTR_INKSCAPE_WINDOW_HEIGHT:
440 nv->window_height = value ? atoi(value) : -1; // -1 means not set
441 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
442 break;
443 case SP_ATTR_INKSCAPE_WINDOW_X:
444 nv->window_x = value ? atoi(value) : -1; // -1 means not set
445 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
446 break;
447 case SP_ATTR_INKSCAPE_WINDOW_Y:
448 nv->window_y = value ? atoi(value) : -1; // -1 means not set
449 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
450 break;
451 case SP_ATTR_INKSCAPE_GRID_BBOX:
452 nv->snap_grid_bbox = (value) ? sp_str_to_bool(value) : TRUE;
453 nv->grid_snapper.setSnapTo(Inkscape::Snapper::BBOX_POINT, nv->showgrid && nv->snap_grid_bbox);
454 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
455 break;
456 case SP_ATTR_INKSCAPE_GRID_POINTS:
457 nv->snap_grid_point = (value) ? sp_str_to_bool(value) : FALSE;
458 nv->grid_snapper.setSnapTo(Inkscape::Snapper::SNAP_POINT, nv->showgrid && nv->snap_grid_point);
459 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
460 break;
461 case SP_ATTR_INKSCAPE_GUIDE_BBOX:
462 nv->snap_guide_bbox = (value) ? sp_str_to_bool(value) : TRUE;
463 nv->guide_snapper.setSnapTo(Inkscape::Snapper::BBOX_POINT, nv->showguides && nv->snap_guide_bbox);
464 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
465 break;
466 case SP_ATTR_INKSCAPE_GUIDE_POINTS:
467 nv->snap_guide_point = (value) ? sp_str_to_bool(value) : FALSE;
468 nv->guide_snapper.setSnapTo(Inkscape::Snapper::SNAP_POINT, nv->showguides && nv->snap_guide_point);
469 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
470 break;
471 case SP_ATTR_INKSCAPE_OBJECT_BBOX:
472 nv->snap_object_bbox = (value) ? sp_str_to_bool(value) : FALSE;
473 nv->object_snapper.setSnapTo(Inkscape::Snapper::BBOX_POINT, nv->snap_object_bbox);
474 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
475 break;
476 case SP_ATTR_INKSCAPE_OBJECT_POINTS:
477 nv->snap_object_point = (value) ? sp_str_to_bool(value) : FALSE;
478 nv->object_snapper.setSnapTo(Inkscape::Snapper::SNAP_POINT, nv->snap_object_point);
479 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
480 break;
481 case SP_ATTR_INKSCAPE_OBJECT_PATHS:
482 nv->snap_object_paths = (value) ? sp_str_to_bool(value) : TRUE;
483 nv->object_snapper.setSnapToPaths(nv->snap_object_paths);
484 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
485 break;
486 case SP_ATTR_INKSCAPE_OBJECT_NODES:
487 nv->snap_object_nodes = (value) ? sp_str_to_bool(value) : TRUE;
488 nv->object_snapper.setSnapToNodes(nv->snap_object_nodes);
489 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
490 break;
491 case SP_ATTR_INKSCAPE_CURRENT_LAYER:
492 nv->default_layer_id = value ? g_quark_from_string(value) : 0;
493 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
494 break;
495 case SP_ATTR_INKSCAPE_DOCUMENT_UNITS: {
496 /* The default unit if the document doesn't override this: e.g. for files saved as
497 * `plain SVG', or non-inkscape files, or files created by an inkscape 0.40 &
498 * earlier.
499 *
500 * Here we choose `px': useful for screen-destined SVGs, and fewer bug reports
501 * about "not the same numbers as what's in the SVG file" (at least for documents
502 * without a viewBox attribute on the root <svg> element). Similarly, it's also
503 * the most reliable unit (i.e. least likely to be wrong in different viewing
504 * conditions) for viewBox-less SVG files given that it's the unit that inkscape
505 * uses for all coordinates.
506 *
507 * For documents that do have a viewBox attribute on the root <svg> element, it
508 * might be better if we used either viewBox coordinates or if we used the unit of
509 * say the width attribute of the root <svg> element. However, these pose problems
510 * in that they aren't in general absolute units as currently required by
511 * doc_units.
512 */
513 SPUnit const *new_unit = &sp_unit_get_by_id(SP_UNIT_PX);
515 if (value) {
516 SPUnit const *const req_unit = sp_unit_get_by_abbreviation(value);
517 if ( req_unit == NULL ) {
518 g_warning("Unrecognized unit `%s'", value);
519 /* fixme: Document errors should be reported in the status bar or
520 * the like (e.g. as per
521 * http://www.w3.org/TR/SVG11/implnote.html#ErrorProcessing); g_log
522 * should be only for programmer errors. */
523 } else if ( req_unit->base == SP_UNIT_ABSOLUTE ||
524 req_unit->base == SP_UNIT_DEVICE ) {
525 new_unit = req_unit;
526 } else {
527 g_warning("Document units must be absolute like `mm', `pt' or `px', but found `%s'",
528 value);
529 /* fixme: Don't use g_log (see above). */
530 }
531 }
532 nv->doc_units = new_unit;
533 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
534 break;
535 }
536 default:
537 if (((SPObjectClass *) (parent_class))->set) {
538 ((SPObjectClass *) (parent_class))->set(object, key, value);
539 }
540 break;
541 }
542 }
544 static void sp_namedview_child_added(SPObject *object, Inkscape::XML::Node *child, Inkscape::XML::Node *ref)
545 {
546 SPNamedView *nv = (SPNamedView *) object;
548 if (((SPObjectClass *) (parent_class))->child_added) {
549 (* ((SPObjectClass *) (parent_class))->child_added)(object, child, ref);
550 }
552 const gchar *id = child->attribute("id");
553 SPObject *no = object->document->getObjectById(id);
554 g_assert(SP_IS_OBJECT(no));
556 if (SP_IS_GUIDE(no)) {
557 SPGuide *g = (SPGuide *) no;
558 nv->guides = g_slist_prepend(nv->guides, g);
559 g_object_set(G_OBJECT(g), "color", nv->guidecolor, "hicolor", nv->guidehicolor, NULL);
560 if (nv->editable) {
561 for (GSList *l = nv->views; l != NULL; l = l->next) {
562 sp_guide_show(g, static_cast<SPDesktop*>(l->data)->guides, (GCallback) sp_dt_guide_event);
563 if (static_cast<SPDesktop*>(l->data)->guides_active)
564 sp_guide_sensitize(g,
565 SP_DT_CANVAS(static_cast<SPDesktop*> (l->data)),
566 TRUE);
567 if (nv->showguides) {
568 for (GSList *v = SP_GUIDE(g)->views; v != NULL; v = v->next) {
569 sp_canvas_item_show(SP_CANVAS_ITEM(v->data));
570 }
571 } else {
572 for (GSList *v = SP_GUIDE(g)->views; v != NULL; v = v->next) {
573 sp_canvas_item_hide(SP_CANVAS_ITEM(v->data));
574 }
575 }
576 }
577 }
578 }
579 }
581 static void sp_namedview_remove_child(SPObject *object, Inkscape::XML::Node *child)
582 {
583 SPNamedView *nv = (SPNamedView *) object;
585 GSList **ref = &nv->guides;
586 for ( GSList *iter = nv->guides ; iter ; iter = iter->next ) {
587 if ( SP_OBJECT_REPR((SPObject *)iter->data) == child ) {
588 *ref = iter->next;
589 iter->next = NULL;
590 g_slist_free_1(iter);
591 break;
592 }
593 ref = &iter->next;
594 }
596 if (((SPObjectClass *) (parent_class))->remove_child) {
597 (* ((SPObjectClass *) (parent_class))->remove_child)(object, child);
598 }
599 }
601 static Inkscape::XML::Node *sp_namedview_write(SPObject *object, Inkscape::XML::Node *repr, guint flags)
602 {
603 if ( ( flags & SP_OBJECT_WRITE_EXT ) &&
604 repr != SP_OBJECT_REPR(object) )
605 {
606 if (repr) {
607 repr->mergeFrom(SP_OBJECT_REPR(object), "id");
608 } else {
609 repr = SP_OBJECT_REPR(object)->duplicate();
610 }
611 }
613 return repr;
614 }
616 void SPNamedView::show(SPDesktop *desktop)
617 {
618 for (GSList *l = guides; l != NULL; l = l->next) {
619 sp_guide_show(SP_GUIDE(l->data), desktop->guides, (GCallback) sp_dt_guide_event);
620 if (desktop->guides_active) {
621 sp_guide_sensitize(SP_GUIDE(l->data), SP_DT_CANVAS(desktop), TRUE);
622 }
623 if (showguides) {
624 for (GSList *v = SP_GUIDE(l->data)->views; v != NULL; v = v->next) {
625 sp_canvas_item_show(SP_CANVAS_ITEM(v->data));
626 }
627 } else {
628 for (GSList *v = SP_GUIDE(l->data)->views; v != NULL; v = v->next) {
629 sp_canvas_item_hide(SP_CANVAS_ITEM(v->data));
630 }
631 }
632 }
634 views = g_slist_prepend(views, desktop);
636 SPCanvasItem *item = sp_canvas_item_new(SP_DT_GRID(desktop), SP_TYPE_CGRID, NULL);
637 // since we're keeping a copy, we need to bump up the ref count
638 gtk_object_ref(GTK_OBJECT(item));
639 gridviews = g_slist_prepend(gridviews, item);
640 sp_namedview_setup_grid_item(this, item);
641 }
643 /*
644 * Restores window geometry from the document settings
645 */
646 void sp_namedview_window_from_document(SPDesktop *desktop)
647 {
648 SPNamedView *nv = desktop->namedview;
649 gint save_geometry = prefs_get_int_attribute("options.savewindowgeometry", "value", 0);
651 // restore window size and position
652 if (save_geometry) {
653 if (nv->window_width != -1 && nv->window_height != -1)
654 desktop->setWindowSize(nv->window_width, nv->window_height);
655 if (nv->window_x != -1 && nv->window_y != -1)
656 desktop->setWindowPosition(NR::Point(nv->window_x, nv->window_y));
657 }
659 // restore zoom and view
660 if (nv->zoom != 0 && nv->zoom != HUGE_VAL && !isNaN(nv->zoom)
661 && nv->cx != HUGE_VAL && !isNaN(nv->cx)
662 && nv->cy != HUGE_VAL && !isNaN(nv->cy)) {
663 desktop->zoom_absolute(nv->cx, nv->cy, nv->zoom);
664 } else if (SP_DT_DOCUMENT(desktop)) { // document without saved zoom, zoom to its page
665 desktop->zoom_page();
666 }
668 // cancel any history of zooms up to this point
669 if (desktop->zooms_past) {
670 g_list_free(desktop->zooms_past);
671 desktop->zooms_past = NULL;
672 }
674 SPObject *layer = NULL;
675 SPDocument *document = desktop->doc();
676 if ( nv->default_layer_id != 0 ) {
677 layer = document->getObjectById(g_quark_to_string(nv->default_layer_id));
678 }
679 // don't use that object if it's not at least group
680 if ( !layer || !SP_IS_GROUP(layer) ) {
681 layer = NULL;
682 }
683 // if that didn't work out, look for the topmost layer
684 if (!layer) {
685 SPObject *iter = sp_object_first_child(SP_DOCUMENT_ROOT(document));
686 for ( ; iter ; iter = SP_OBJECT_NEXT(iter) ) {
687 if (desktop->isLayer(iter)) {
688 layer = iter;
689 }
690 }
691 }
692 if (layer) {
693 desktop->setCurrentLayer(layer);
694 }
695 }
697 void sp_namedview_document_from_window(SPDesktop *desktop)
698 {
699 gint save_geometry = prefs_get_int_attribute("options.savewindowgeometry", "value", 0);
700 Inkscape::XML::Node *view = SP_OBJECT_REPR(desktop->namedview);
701 NR::Rect const r = desktop->get_display_area();
703 // saving window geometry is not undoable
704 gboolean saved = sp_document_get_undo_sensitive(SP_DT_DOCUMENT(desktop));
705 sp_document_set_undo_sensitive(SP_DT_DOCUMENT(desktop), FALSE);
707 sp_repr_set_svg_double(view, "inkscape:zoom", desktop->current_zoom());
708 sp_repr_set_svg_double(view, "inkscape:cx", r.midpoint()[NR::X]);
709 sp_repr_set_svg_double(view, "inkscape:cy", r.midpoint()[NR::Y]);
711 if (save_geometry) {
712 gint w, h, x, y;
713 desktop->getWindowGeometry(x, y, w, h);
714 sp_repr_set_int(view, "inkscape:window-width", w);
715 sp_repr_set_int(view, "inkscape:window-height", h);
716 sp_repr_set_int(view, "inkscape:window-x", x);
717 sp_repr_set_int(view, "inkscape:window-y", y);
718 }
720 view->setAttribute("inkscape:current-layer", SP_OBJECT_ID(desktop->currentLayer()));
722 // restore undoability
723 sp_document_set_undo_sensitive(SP_DT_DOCUMENT(desktop), saved);
724 }
726 void SPNamedView::hide(SPDesktop const *desktop)
727 {
728 g_assert(desktop != NULL);
729 g_assert(g_slist_find(views, desktop));
731 for (GSList *l = guides; l != NULL; l = l->next) {
732 sp_guide_hide(SP_GUIDE(l->data), SP_DT_CANVAS(desktop));
733 }
735 views = g_slist_remove(views, desktop);
737 GSList *l;
738 for (l = gridviews; l != NULL; l = l->next) {
739 if (SP_CANVAS_ITEM(l->data)->canvas == SP_DT_CANVAS(desktop)) {
740 break;
741 }
742 }
744 g_assert(l);
746 sp_canvas_item_hide(SP_CANVAS_ITEM(l->data));
747 gtk_object_unref(GTK_OBJECT(l->data));
748 gridviews = g_slist_remove(gridviews, l->data);
749 }
751 void SPNamedView::activateGuides(gpointer desktop, gboolean active)
752 {
753 g_assert(desktop != NULL);
754 g_assert(g_slist_find(views, desktop));
756 SPDesktop *dt = static_cast<SPDesktop*>(desktop);
758 for (GSList *l = guides; l != NULL; l = l->next) {
759 sp_guide_sensitize(SP_GUIDE(l->data), SP_DT_CANVAS(dt), active);
760 }
761 }
763 static void sp_namedview_setup_guides(SPNamedView *nv)
764 {
765 for (GSList *l = nv->guides; l != NULL; l = l->next) {
766 if (nv->showguides) {
767 for (GSList *v = SP_GUIDE(l->data)->views; v != NULL; v = v->next) {
768 sp_canvas_item_show(SP_CANVAS_ITEM(v->data));
769 }
770 } else {
771 for (GSList *v = SP_GUIDE(l->data)->views; v != NULL; v = v->next) {
772 sp_canvas_item_hide(SP_CANVAS_ITEM(v->data));
773 }
774 }
775 }
776 }
778 void sp_namedview_toggle_guides(SPDocument *doc, Inkscape::XML::Node *repr)
779 {
780 unsigned int v;
781 unsigned int set = sp_repr_get_boolean(repr, "showguides", &v);
782 if (!set) { // hide guides if not specified, for backwards compatibility
783 v = FALSE;
784 } else {
785 v = !v;
786 }
788 gboolean saved = sp_document_get_undo_sensitive(doc);
789 sp_document_set_undo_sensitive(doc, FALSE);
791 sp_repr_set_boolean(repr, "showguides", v);
793 doc->rroot->setAttribute("sodipodi:modified", "true");
794 sp_document_set_undo_sensitive(doc, saved);
795 }
797 void sp_namedview_toggle_grid(SPDocument *doc, Inkscape::XML::Node *repr)
798 {
799 unsigned int v;
800 sp_repr_get_boolean(repr, "showgrid", &v);
801 v = !v;
803 gboolean saved = sp_document_get_undo_sensitive(doc);
804 sp_document_set_undo_sensitive(doc, FALSE);
806 sp_repr_set_boolean(repr, "showgrid", v);
808 doc->rroot->setAttribute("sodipodi:modified", "true");
809 sp_document_set_undo_sensitive(doc, saved);
810 }
812 static void sp_namedview_setup_grid(SPNamedView *nv)
813 {
814 for (GSList *l = nv->gridviews; l != NULL; l = l->next) {
815 sp_namedview_setup_grid_item(nv, SP_CANVAS_ITEM(l->data));
816 }
817 }
819 static void sp_namedview_setup_grid_item(SPNamedView *nv, SPCanvasItem *item)
820 {
821 if (nv->showgrid) {
822 sp_canvas_item_show(item);
823 } else {
824 sp_canvas_item_hide(item);
825 }
827 sp_canvas_item_set((GtkObject *) item,
828 "color", nv->gridcolor,
829 "originx", nv->gridorigin[NR::X],
830 "originy", nv->gridorigin[NR::Y],
831 "spacingx", nv->gridspacing[NR::X],
832 "spacingy", nv->gridspacing[NR::Y],
833 "empcolor", nv->gridempcolor,
834 "empspacing", nv->gridempspacing,
835 NULL);
836 }
838 gchar const *SPNamedView::getName() const
839 {
840 SPException ex;
841 SP_EXCEPTION_INIT(&ex);
842 return sp_object_getAttribute(SP_OBJECT(this), "id", &ex);
843 }
845 guint SPNamedView::getViewCount()
846 {
847 return ++viewcount;
848 }
850 GSList const *SPNamedView::getViewList() const
851 {
852 return views;
853 }
855 /* This should be moved somewhere */
857 static gboolean sp_str_to_bool(const gchar *str)
858 {
859 if (str) {
860 if (!g_strcasecmp(str, "true") ||
861 !g_strcasecmp(str, "yes") ||
862 !g_strcasecmp(str, "y") ||
863 (atoi(str) != 0)) {
864 return TRUE;
865 }
866 }
868 return FALSE;
869 }
871 /* fixme: Collect all these length parsing methods and think common sane API */
873 static gboolean sp_nv_read_length(const gchar *str, guint base, gdouble *val, const SPUnit **unit)
874 {
875 if (!str) {
876 return FALSE;
877 }
879 gchar *u;
880 gdouble v = g_ascii_strtod(str, &u);
881 if (!u) {
882 return FALSE;
883 }
884 while (isspace(*u)) {
885 u += 1;
886 }
888 if (!*u) {
889 /* No unit specified - keep default */
890 *val = v;
891 return TRUE;
892 }
894 if (base & SP_UNIT_DEVICE) {
895 if (u[0] && u[1] && !isalnum(u[2]) && !strncmp(u, "px", 2)) {
896 *unit = &sp_unit_get_by_id(SP_UNIT_PX);
897 *val = v;
898 return TRUE;
899 }
900 }
902 if (base & SP_UNIT_ABSOLUTE) {
903 if (!strncmp(u, "pt", 2)) {
904 *unit = &sp_unit_get_by_id(SP_UNIT_PT);
905 } else if (!strncmp(u, "mm", 2)) {
906 *unit = &sp_unit_get_by_id(SP_UNIT_MM);
907 } else if (!strncmp(u, "cm", 2)) {
908 *unit = &sp_unit_get_by_id(SP_UNIT_CM);
909 } else if (!strncmp(u, "m", 1)) {
910 *unit = &sp_unit_get_by_id(SP_UNIT_M);
911 } else if (!strncmp(u, "in", 2)) {
912 *unit = &sp_unit_get_by_id(SP_UNIT_IN);
913 } else {
914 return FALSE;
915 }
916 *val = v;
917 return TRUE;
918 }
920 return FALSE;
921 }
923 static gboolean sp_nv_read_opacity(const gchar *str, guint32 *color)
924 {
925 if (!str) {
926 return FALSE;
927 }
929 gchar *u;
930 gdouble v = strtod(str, &u);
931 if (!u) {
932 return FALSE;
933 }
934 v = CLAMP(v, 0.0, 1.0);
936 *color = (*color & 0xffffff00) | (guint32) floor(v * 255.9999);
938 return TRUE;
939 }
941 SPNamedView *sp_document_namedview(SPDocument *document, const gchar *id)
942 {
943 g_return_val_if_fail(document != NULL, NULL);
945 SPObject *nv = sp_item_group_get_child_by_name((SPGroup *) document->root, NULL, "sodipodi:namedview");
946 g_assert(nv != NULL);
948 if (id == NULL) {
949 return (SPNamedView *) nv;
950 }
952 while (nv && strcmp(nv->id, id)) {
953 nv = sp_item_group_get_child_by_name((SPGroup *) document->root, nv, "sodipodi:namedview");
954 }
956 return (SPNamedView *) nv;
957 }
959 /**
960 * Returns namedview's default metric.
961 */
962 SPMetric SPNamedView::getDefaultMetric() const
963 {
964 if (doc_units) {
965 return sp_unit_get_metric(doc_units);
966 } else {
967 return SP_PT;
968 }
969 }
971 SPNamedView::SnapperList SPNamedView::getSnappers() const
972 {
973 SnapperList s;
974 s.push_back(&grid_snapper);
975 s.push_back(&guide_snapper);
976 s.push_back(&object_snapper);
977 return s;
978 }
980 /*
981 Local Variables:
982 mode:c++
983 c-file-style:"stroustrup"
984 c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
985 indent-tabs-mode:nil
986 fill-column:99
987 End:
988 */
989 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4 :