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"
34 #include "conn-avoid-ref.h" // for defaultConnSpacing.
36 #include "isnan.h" //temp fix for isnan(). include last
38 #define DEFAULTTOLERANCE 0.4
39 #define DEFAULTGRIDCOLOR 0x3f3fff25
40 #define DEFAULTGRIDEMPCOLOR 0x3f3fff60
41 #define DEFAULTGRIDEMPSPACING 5
42 #define DEFAULTGUIDECOLOR 0x0000ff7f
43 #define DEFAULTGUIDEHICOLOR 0xff00007f
44 #define DEFAULTBORDERCOLOR 0x000000ff
45 #define DEFAULTPAGECOLOR 0xffffff00
47 static void sp_namedview_class_init(SPNamedViewClass *klass);
48 static void sp_namedview_init(SPNamedView *namedview);
50 static void sp_namedview_build(SPObject *object, SPDocument *document, Inkscape::XML::Node *repr);
51 static void sp_namedview_release(SPObject *object);
52 static void sp_namedview_set(SPObject *object, unsigned int key, const gchar *value);
53 static void sp_namedview_child_added(SPObject *object, Inkscape::XML::Node *child, Inkscape::XML::Node *ref);
54 static void sp_namedview_remove_child(SPObject *object, Inkscape::XML::Node *child);
55 static Inkscape::XML::Node *sp_namedview_write(SPObject *object, Inkscape::XML::Node *repr, guint flags);
57 static void sp_namedview_setup_guides(SPNamedView * nv);
59 static void sp_namedview_setup_grid(SPNamedView * nv);
60 static void sp_namedview_setup_grid_item(SPNamedView * nv, SPCanvasItem * item);
62 static gboolean sp_str_to_bool(const gchar *str);
63 static gboolean sp_nv_read_length(const gchar *str, guint base, gdouble *val, const SPUnit **unit);
64 static gboolean sp_nv_read_opacity(const gchar *str, guint32 *color);
66 static SPObjectGroupClass * parent_class;
68 GType
69 sp_namedview_get_type()
70 {
71 static GType namedview_type = 0;
72 if (!namedview_type) {
73 GTypeInfo namedview_info = {
74 sizeof(SPNamedViewClass),
75 NULL, /* base_init */
76 NULL, /* base_finalize */
77 (GClassInitFunc) sp_namedview_class_init,
78 NULL, /* class_finalize */
79 NULL, /* class_data */
80 sizeof(SPNamedView),
81 16, /* n_preallocs */
82 (GInstanceInitFunc) sp_namedview_init,
83 NULL, /* value_table */
84 };
85 namedview_type = g_type_register_static(SP_TYPE_OBJECTGROUP, "SPNamedView", &namedview_info, (GTypeFlags)0);
86 }
87 return namedview_type;
88 }
90 static void sp_namedview_class_init(SPNamedViewClass * klass)
91 {
92 GObjectClass * gobject_class;
93 SPObjectClass * sp_object_class;
95 gobject_class = (GObjectClass *) klass;
96 sp_object_class = (SPObjectClass *) klass;
98 parent_class = (SPObjectGroupClass*) g_type_class_ref(SP_TYPE_OBJECTGROUP);
100 sp_object_class->build = sp_namedview_build;
101 sp_object_class->release = sp_namedview_release;
102 sp_object_class->set = sp_namedview_set;
103 sp_object_class->child_added = sp_namedview_child_added;
104 sp_object_class->remove_child = sp_namedview_remove_child;
105 sp_object_class->write = sp_namedview_write;
106 }
108 static void sp_namedview_init(SPNamedView *nv)
109 {
110 nv->editable = TRUE;
111 nv->showgrid = FALSE;
112 nv->showguides = TRUE;
113 nv->showborder = TRUE;
114 nv->showpageshadow = TRUE;
116 nv->guides = NULL;
117 nv->viewcount = 0;
119 nv->default_layer_id = 0;
121 nv->connector_spacing = defaultConnSpacing;
123 new (&nv->grid_snapper) Inkscape::GridSnapper(nv, 0);
124 new (&nv->guide_snapper) Inkscape::GuideSnapper(nv, 0);
125 new (&nv->object_snapper) Inkscape::ObjectSnapper(nv, 0);
126 }
128 static void sp_namedview_build(SPObject *object, SPDocument *document, Inkscape::XML::Node *repr)
129 {
130 SPNamedView *nv = (SPNamedView *) object;
131 SPObjectGroup *og = (SPObjectGroup *) object;
133 if (((SPObjectClass *) (parent_class))->build) {
134 (* ((SPObjectClass *) (parent_class))->build)(object, document, repr);
135 }
137 sp_object_read_attr(object, "inkscape:document-units");
138 sp_object_read_attr(object, "viewonly");
139 sp_object_read_attr(object, "showgrid");
140 sp_object_read_attr(object, "showguides");
141 sp_object_read_attr(object, "gridtolerance");
142 sp_object_read_attr(object, "guidetolerance");
143 sp_object_read_attr(object, "objecttolerance");
144 sp_object_read_attr(object, "inkscape:has_abs_tolerance");
145 sp_object_read_attr(object, "gridoriginx");
146 sp_object_read_attr(object, "gridoriginy");
147 sp_object_read_attr(object, "gridspacingx");
148 sp_object_read_attr(object, "gridspacingy");
149 sp_object_read_attr(object, "gridempspacing");
150 sp_object_read_attr(object, "gridcolor");
151 sp_object_read_attr(object, "gridempcolor");
152 sp_object_read_attr(object, "gridopacity");
153 sp_object_read_attr(object, "gridempopacity");
154 sp_object_read_attr(object, "guidecolor");
155 sp_object_read_attr(object, "guideopacity");
156 sp_object_read_attr(object, "guidehicolor");
157 sp_object_read_attr(object, "guidehiopacity");
158 sp_object_read_attr(object, "showborder");
159 sp_object_read_attr(object, "inkscape:showpageshadow");
160 sp_object_read_attr(object, "borderlayer");
161 sp_object_read_attr(object, "bordercolor");
162 sp_object_read_attr(object, "borderopacity");
163 sp_object_read_attr(object, "pagecolor");
164 sp_object_read_attr(object, "inkscape:pageopacity");
165 sp_object_read_attr(object, "inkscape:pageshadow");
166 sp_object_read_attr(object, "inkscape:zoom");
167 sp_object_read_attr(object, "inkscape:cx");
168 sp_object_read_attr(object, "inkscape:cy");
169 sp_object_read_attr(object, "inkscape:window-width");
170 sp_object_read_attr(object, "inkscape:window-height");
171 sp_object_read_attr(object, "inkscape:window-x");
172 sp_object_read_attr(object, "inkscape:window-y");
173 sp_object_read_attr(object, "inkscape:grid-bbox");
174 sp_object_read_attr(object, "inkscape:guide-bbox");
175 sp_object_read_attr(object, "inkscape:object-bbox");
176 sp_object_read_attr(object, "inkscape:grid-points");
177 sp_object_read_attr(object, "inkscape:guide-points");
178 sp_object_read_attr(object, "inkscape:object-points");
179 sp_object_read_attr(object, "inkscape:object-paths");
180 sp_object_read_attr(object, "inkscape:object-nodes");
181 sp_object_read_attr(object, "inkscape:current-layer");
182 sp_object_read_attr(object, "inkscape:connector-spacing");
184 /* Construct guideline list */
186 for (SPObject *o = sp_object_first_child(SP_OBJECT(og)) ; o != NULL; o = SP_OBJECT_NEXT(o) ) {
187 if (SP_IS_GUIDE(o)) {
188 SPGuide * g = SP_GUIDE(o);
189 nv->guides = g_slist_prepend(nv->guides, g);
190 g_object_set(G_OBJECT(g), "color", nv->guidecolor, "hicolor", nv->guidehicolor, NULL);
191 }
192 }
193 }
195 static void sp_namedview_release(SPObject *object)
196 {
197 SPNamedView *namedview = (SPNamedView *) object;
199 if (namedview->guides) {
200 g_slist_free(namedview->guides);
201 namedview->guides = NULL;
202 }
204 while (namedview->gridviews) {
205 gtk_object_unref(GTK_OBJECT(namedview->gridviews->data));
206 namedview->gridviews = g_slist_remove(namedview->gridviews, namedview->gridviews->data);
207 }
209 namedview->grid_snapper.~GridSnapper();
210 namedview->guide_snapper.~GuideSnapper();
211 namedview->object_snapper.~ObjectSnapper();
213 if (((SPObjectClass *) parent_class)->release) {
214 ((SPObjectClass *) parent_class)->release(object);
215 }
216 }
218 static void sp_namedview_set(SPObject *object, unsigned int key, const gchar *value)
219 {
220 SPNamedView *nv = SP_NAMEDVIEW(object);
221 SPUnit const &px = sp_unit_get_by_id(SP_UNIT_PX);
223 switch (key) {
224 case SP_ATTR_VIEWONLY:
225 nv->editable = (!value);
226 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
227 break;
228 case SP_ATTR_SHOWGRID:
229 nv->showgrid = sp_str_to_bool(value);
230 sp_namedview_setup_grid(nv);
231 if (!nv->showgrid) { // grid goes off, disable snaps even if they are turned on
232 nv->grid_snapper.setSnapTo(Inkscape::Snapper::BBOX_POINT, false);
233 nv->grid_snapper.setSnapTo(Inkscape::Snapper::SNAP_POINT, false);
234 } else { // grid goes on, enable snaps if they are turned on
235 nv->grid_snapper.setSnapTo(Inkscape::Snapper::BBOX_POINT, nv->snap_grid_bbox);
236 nv->grid_snapper.setSnapTo(Inkscape::Snapper::SNAP_POINT, nv->snap_grid_point);
237 }
238 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
239 break;
240 case SP_ATTR_SHOWGUIDES:
241 if (!value) { // show guides if not specified, for backwards compatibility
242 nv->showguides = TRUE;
243 } else {
244 nv->showguides = sp_str_to_bool(value);
245 }
246 if (!nv->showguides) { // guides go off, disable snaps even if they are turned on
247 nv->guide_snapper.setSnapTo(Inkscape::Snapper::BBOX_POINT, false);
248 nv->guide_snapper.setSnapTo(Inkscape::Snapper::SNAP_POINT, false);
249 } else { // guides go on, enable snaps if they are turned on
250 nv->guide_snapper.setSnapTo(Inkscape::Snapper::BBOX_POINT, nv->snap_guide_bbox);
251 nv->guide_snapper.setSnapTo(Inkscape::Snapper::SNAP_POINT, nv->snap_guide_point);
252 }
253 sp_namedview_setup_guides(nv);
254 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
255 break;
256 case SP_ATTR_GRIDTOLERANCE:
257 nv->gridtoleranceunit = &px;
258 nv->gridtolerance = DEFAULTTOLERANCE;
259 if (value) {
260 sp_nv_read_length(value, SP_UNIT_ABSOLUTE | SP_UNIT_DEVICE, &nv->gridtolerance, &nv->gridtoleranceunit);
261 }
262 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
263 break;
264 case SP_ATTR_GUIDETOLERANCE:
265 nv->guidetoleranceunit = &px;
266 nv->guidetolerance = DEFAULTTOLERANCE;
267 if (value) {
268 sp_nv_read_length(value, SP_UNIT_ABSOLUTE | SP_UNIT_DEVICE, &nv->guidetolerance, &nv->guidetoleranceunit);
269 }
270 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
271 break;
272 case SP_ATTR_OBJECTTOLERANCE:
273 nv->objecttoleranceunit = &px;
274 nv->objecttolerance = DEFAULTTOLERANCE;
275 if (value) {
276 sp_nv_read_length(value, SP_UNIT_ABSOLUTE | SP_UNIT_DEVICE, &nv->objecttolerance, &nv->objecttoleranceunit);
277 }
278 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
279 break;
280 case SP_ATTR_ABS_TOLERANCE:
281 if (!value)
282 nv->has_abs_tolerance = true;
283 else
284 nv->has_abs_tolerance = (sp_str_to_bool (value) == TRUE);
285 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
286 break;
287 case SP_ATTR_GRIDORIGINX:
288 case SP_ATTR_GRIDORIGINY:
289 {
290 unsigned const d = (key == SP_ATTR_GRIDORIGINY);
291 nv->gridunit = nv->doc_units;
292 nv->gridorigin[d] = 0.0;
293 if (value) {
294 sp_nv_read_length(value, SP_UNIT_ABSOLUTE | SP_UNIT_DEVICE, &nv->gridorigin[d], &nv->gridunit);
295 }
296 nv->gridorigin[d] = sp_units_get_pixels(nv->gridorigin[d], *(nv->gridunit));
297 sp_namedview_setup_grid(nv);
298 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
299 break;
300 }
301 case SP_ATTR_GRIDSPACINGX:
302 case SP_ATTR_GRIDSPACINGY:
303 {
304 unsigned const d = (key == SP_ATTR_GRIDSPACINGY);
305 nv->gridunit = nv->doc_units;
306 nv->gridspacing[d] = 1.0;
307 if (value) {
308 sp_nv_read_length(value, SP_UNIT_ABSOLUTE | SP_UNIT_DEVICE, &nv->gridspacing[d], &nv->gridunit);
309 }
310 nv->gridspacing[d] = sp_units_get_pixels(nv->gridspacing[d], *(nv->gridunit));
311 sp_namedview_setup_grid(nv);
312 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
313 break;
314 }
315 case SP_ATTR_GRIDCOLOR:
316 nv->gridcolor = (nv->gridcolor & 0xff) | (DEFAULTGRIDCOLOR & 0xffffff00);
317 if (value) {
318 nv->gridcolor = (nv->gridcolor & 0xff) | sp_svg_read_color(value, nv->gridcolor);
319 }
320 sp_namedview_setup_grid(nv);
321 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
322 break;
323 case SP_ATTR_GRIDEMPCOLOR:
324 nv->gridempcolor = (nv->gridempcolor & 0xff) | (DEFAULTGRIDEMPCOLOR & 0xffffff00);
325 if (value) {
326 nv->gridempcolor = (nv->gridempcolor & 0xff) | sp_svg_read_color(value, nv->gridempcolor);
327 }
328 sp_namedview_setup_grid(nv);
329 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
330 break;
331 case SP_ATTR_GRIDOPACITY:
332 nv->gridcolor = (nv->gridcolor & 0xffffff00) | (DEFAULTGRIDCOLOR & 0xff);
333 sp_nv_read_opacity(value, &nv->gridcolor);
334 sp_namedview_setup_grid(nv);
335 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
336 break;
337 case SP_ATTR_GRIDEMPOPACITY:
338 nv->gridempcolor = (nv->gridempcolor & 0xffffff00) | (DEFAULTGRIDEMPCOLOR & 0xff);
339 sp_nv_read_opacity(value, &nv->gridempcolor);
340 sp_namedview_setup_grid(nv);
341 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
342 break;
343 case SP_ATTR_GRIDEMPSPACING:
344 nv->gridempspacing = DEFAULTGRIDEMPSPACING;
345 if (value != NULL)
346 nv->gridempspacing = atoi(value);
347 sp_namedview_setup_grid(nv);
348 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
349 break;
350 case SP_ATTR_GUIDECOLOR:
351 nv->guidecolor = (nv->guidecolor & 0xff) | (DEFAULTGUIDECOLOR & 0xffffff00);
352 if (value) {
353 nv->guidecolor = (nv->guidecolor & 0xff) | sp_svg_read_color(value, nv->guidecolor);
354 }
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_GUIDEOPACITY:
361 nv->guidecolor = (nv->guidecolor & 0xffffff00) | (DEFAULTGUIDECOLOR & 0xff);
362 sp_nv_read_opacity(value, &nv->guidecolor);
363 for (GSList *l = nv->guides; l != NULL; l = l->next) {
364 g_object_set(G_OBJECT(l->data), "color", nv->guidecolor, NULL);
365 }
366 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
367 break;
368 case SP_ATTR_GUIDEHICOLOR:
369 nv->guidehicolor = (nv->guidehicolor & 0xff) | (DEFAULTGUIDEHICOLOR & 0xffffff00);
370 if (value) {
371 nv->guidehicolor = (nv->guidehicolor & 0xff) | sp_svg_read_color(value, nv->guidehicolor);
372 }
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_GUIDEHIOPACITY:
379 nv->guidehicolor = (nv->guidehicolor & 0xffffff00) | (DEFAULTGUIDEHICOLOR & 0xff);
380 sp_nv_read_opacity(value, &nv->guidehicolor);
381 for (GSList *l = nv->guides; l != NULL; l = l->next) {
382 g_object_set(G_OBJECT(l->data), "hicolor", nv->guidehicolor, NULL);
383 }
384 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
385 break;
386 case SP_ATTR_SHOWBORDER:
387 nv->showborder = (value) ? sp_str_to_bool (value) : TRUE;
388 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
389 break;
390 case SP_ATTR_BORDERLAYER:
391 nv->borderlayer = SP_BORDER_LAYER_BOTTOM;
392 if (value && !strcasecmp(value, "true")) nv->borderlayer = SP_BORDER_LAYER_TOP;
393 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
394 break;
395 case SP_ATTR_BORDERCOLOR:
396 nv->bordercolor = (nv->bordercolor & 0xff) | (DEFAULTBORDERCOLOR & 0xffffff00);
397 if (value) {
398 nv->bordercolor = (nv->bordercolor & 0xff) | sp_svg_read_color (value, nv->bordercolor);
399 }
400 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
401 break;
402 case SP_ATTR_BORDEROPACITY:
403 nv->bordercolor = (nv->bordercolor & 0xffffff00) | (DEFAULTBORDERCOLOR & 0xff);
404 sp_nv_read_opacity(value, &nv->bordercolor);
405 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
406 break;
407 case SP_ATTR_PAGECOLOR:
408 nv->pagecolor = (nv->pagecolor & 0xff) | (DEFAULTPAGECOLOR & 0xffffff00);
409 if (value) {
410 nv->pagecolor = (nv->pagecolor & 0xff) | sp_svg_read_color(value, nv->pagecolor);
411 }
412 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
413 break;
414 case SP_ATTR_INKSCAPE_PAGEOPACITY:
415 nv->pagecolor = (nv->pagecolor & 0xffffff00) | (DEFAULTPAGECOLOR & 0xff);
416 sp_nv_read_opacity(value, &nv->pagecolor);
417 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
418 break;
419 case SP_ATTR_INKSCAPE_PAGESHADOW:
420 nv->pageshadow = value? atoi(value) : 2; // 2 is the default
421 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
422 break;
423 case SP_ATTR_SHOWPAGESHADOW:
424 nv->showpageshadow = (value) ? sp_str_to_bool(value) : TRUE;
425 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
426 break;
427 case SP_ATTR_INKSCAPE_ZOOM:
428 nv->zoom = value ? g_ascii_strtod(value, NULL) : 0; // zero means not set
429 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
430 break;
431 case SP_ATTR_INKSCAPE_CX:
432 nv->cx = 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_CY:
436 nv->cy = value ? g_ascii_strtod(value, NULL) : HUGE_VAL; // HUGE_VAL means not set
437 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
438 break;
439 case SP_ATTR_INKSCAPE_WINDOW_WIDTH:
440 nv->window_width = value? atoi(value) : -1; // -1 means not set
441 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
442 break;
443 case SP_ATTR_INKSCAPE_WINDOW_HEIGHT:
444 nv->window_height = value ? atoi(value) : -1; // -1 means not set
445 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
446 break;
447 case SP_ATTR_INKSCAPE_WINDOW_X:
448 nv->window_x = value ? atoi(value) : -1; // -1 means not set
449 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
450 break;
451 case SP_ATTR_INKSCAPE_WINDOW_Y:
452 nv->window_y = value ? atoi(value) : -1; // -1 means not set
453 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
454 break;
455 case SP_ATTR_INKSCAPE_GRID_BBOX:
456 nv->snap_grid_bbox = (value) ? sp_str_to_bool(value) : TRUE;
457 nv->grid_snapper.setSnapTo(Inkscape::Snapper::BBOX_POINT, nv->showgrid && nv->snap_grid_bbox);
458 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
459 break;
460 case SP_ATTR_INKSCAPE_GRID_POINTS:
461 nv->snap_grid_point = (value) ? sp_str_to_bool(value) : FALSE;
462 nv->grid_snapper.setSnapTo(Inkscape::Snapper::SNAP_POINT, nv->showgrid && nv->snap_grid_point);
463 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
464 break;
465 case SP_ATTR_INKSCAPE_GUIDE_BBOX:
466 nv->snap_guide_bbox = (value) ? sp_str_to_bool(value) : TRUE;
467 nv->guide_snapper.setSnapTo(Inkscape::Snapper::BBOX_POINT, nv->showguides && nv->snap_guide_bbox);
468 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
469 break;
470 case SP_ATTR_INKSCAPE_GUIDE_POINTS:
471 nv->snap_guide_point = (value) ? sp_str_to_bool(value) : FALSE;
472 nv->guide_snapper.setSnapTo(Inkscape::Snapper::SNAP_POINT, nv->showguides && nv->snap_guide_point);
473 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
474 break;
475 case SP_ATTR_INKSCAPE_OBJECT_BBOX:
476 nv->snap_object_bbox = (value) ? sp_str_to_bool(value) : FALSE;
477 nv->object_snapper.setSnapTo(Inkscape::Snapper::BBOX_POINT, nv->snap_object_bbox);
478 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
479 break;
480 case SP_ATTR_INKSCAPE_OBJECT_POINTS:
481 nv->snap_object_point = (value) ? sp_str_to_bool(value) : FALSE;
482 nv->object_snapper.setSnapTo(Inkscape::Snapper::SNAP_POINT, nv->snap_object_point);
483 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
484 break;
485 case SP_ATTR_INKSCAPE_OBJECT_PATHS:
486 nv->snap_object_paths = (value) ? sp_str_to_bool(value) : TRUE;
487 nv->object_snapper.setSnapToPaths(nv->snap_object_paths);
488 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
489 break;
490 case SP_ATTR_INKSCAPE_OBJECT_NODES:
491 nv->snap_object_nodes = (value) ? sp_str_to_bool(value) : TRUE;
492 nv->object_snapper.setSnapToNodes(nv->snap_object_nodes);
493 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
494 break;
495 case SP_ATTR_INKSCAPE_CURRENT_LAYER:
496 nv->default_layer_id = value ? g_quark_from_string(value) : 0;
497 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
498 break;
499 case SP_ATTR_INKSCAPE_CONNECTOR_SPACING:
500 nv->connector_spacing = value ? g_ascii_strtod(value, NULL) :
501 defaultConnSpacing;
502 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
503 break;
504 case SP_ATTR_INKSCAPE_DOCUMENT_UNITS: {
505 /* The default unit if the document doesn't override this: e.g. for files saved as
506 * `plain SVG', or non-inkscape files, or files created by an inkscape 0.40 &
507 * earlier.
508 *
509 * Here we choose `px': useful for screen-destined SVGs, and fewer bug reports
510 * about "not the same numbers as what's in the SVG file" (at least for documents
511 * without a viewBox attribute on the root <svg> element). Similarly, it's also
512 * the most reliable unit (i.e. least likely to be wrong in different viewing
513 * conditions) for viewBox-less SVG files given that it's the unit that inkscape
514 * uses for all coordinates.
515 *
516 * For documents that do have a viewBox attribute on the root <svg> element, it
517 * might be better if we used either viewBox coordinates or if we used the unit of
518 * say the width attribute of the root <svg> element. However, these pose problems
519 * in that they aren't in general absolute units as currently required by
520 * doc_units.
521 */
522 SPUnit const *new_unit = &sp_unit_get_by_id(SP_UNIT_PX);
524 if (value) {
525 SPUnit const *const req_unit = sp_unit_get_by_abbreviation(value);
526 if ( req_unit == NULL ) {
527 g_warning("Unrecognized unit `%s'", value);
528 /* fixme: Document errors should be reported in the status bar or
529 * the like (e.g. as per
530 * http://www.w3.org/TR/SVG11/implnote.html#ErrorProcessing); g_log
531 * should be only for programmer errors. */
532 } else if ( req_unit->base == SP_UNIT_ABSOLUTE ||
533 req_unit->base == SP_UNIT_DEVICE ) {
534 new_unit = req_unit;
535 } else {
536 g_warning("Document units must be absolute like `mm', `pt' or `px', but found `%s'",
537 value);
538 /* fixme: Don't use g_log (see above). */
539 }
540 }
541 nv->doc_units = new_unit;
542 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
543 break;
544 }
545 default:
546 if (((SPObjectClass *) (parent_class))->set) {
547 ((SPObjectClass *) (parent_class))->set(object, key, value);
548 }
549 break;
550 }
551 }
553 static void sp_namedview_child_added(SPObject *object, Inkscape::XML::Node *child, Inkscape::XML::Node *ref)
554 {
555 SPNamedView *nv = (SPNamedView *) object;
557 if (((SPObjectClass *) (parent_class))->child_added) {
558 (* ((SPObjectClass *) (parent_class))->child_added)(object, child, ref);
559 }
561 const gchar *id = child->attribute("id");
562 SPObject *no = object->document->getObjectById(id);
563 g_assert(SP_IS_OBJECT(no));
565 if (SP_IS_GUIDE(no)) {
566 SPGuide *g = (SPGuide *) no;
567 nv->guides = g_slist_prepend(nv->guides, g);
568 g_object_set(G_OBJECT(g), "color", nv->guidecolor, "hicolor", nv->guidehicolor, NULL);
569 if (nv->editable) {
570 for (GSList *l = nv->views; l != NULL; l = l->next) {
571 sp_guide_show(g, static_cast<SPDesktop*>(l->data)->guides, (GCallback) sp_dt_guide_event);
572 if (static_cast<SPDesktop*>(l->data)->guides_active)
573 sp_guide_sensitize(g,
574 SP_DT_CANVAS(static_cast<SPDesktop*> (l->data)),
575 TRUE);
576 if (nv->showguides) {
577 for (GSList *v = SP_GUIDE(g)->views; v != NULL; v = v->next) {
578 sp_canvas_item_show(SP_CANVAS_ITEM(v->data));
579 }
580 } else {
581 for (GSList *v = SP_GUIDE(g)->views; v != NULL; v = v->next) {
582 sp_canvas_item_hide(SP_CANVAS_ITEM(v->data));
583 }
584 }
585 }
586 }
587 }
588 }
590 static void sp_namedview_remove_child(SPObject *object, Inkscape::XML::Node *child)
591 {
592 SPNamedView *nv = (SPNamedView *) object;
594 GSList **ref = &nv->guides;
595 for ( GSList *iter = nv->guides ; iter ; iter = iter->next ) {
596 if ( SP_OBJECT_REPR((SPObject *)iter->data) == child ) {
597 *ref = iter->next;
598 iter->next = NULL;
599 g_slist_free_1(iter);
600 break;
601 }
602 ref = &iter->next;
603 }
605 if (((SPObjectClass *) (parent_class))->remove_child) {
606 (* ((SPObjectClass *) (parent_class))->remove_child)(object, child);
607 }
608 }
610 static Inkscape::XML::Node *sp_namedview_write(SPObject *object, Inkscape::XML::Node *repr, guint flags)
611 {
612 if ( ( flags & SP_OBJECT_WRITE_EXT ) &&
613 repr != SP_OBJECT_REPR(object) )
614 {
615 if (repr) {
616 repr->mergeFrom(SP_OBJECT_REPR(object), "id");
617 } else {
618 repr = SP_OBJECT_REPR(object)->duplicate();
619 }
620 }
622 return repr;
623 }
625 void SPNamedView::show(SPDesktop *desktop)
626 {
627 for (GSList *l = guides; l != NULL; l = l->next) {
628 sp_guide_show(SP_GUIDE(l->data), desktop->guides, (GCallback) sp_dt_guide_event);
629 if (desktop->guides_active) {
630 sp_guide_sensitize(SP_GUIDE(l->data), SP_DT_CANVAS(desktop), TRUE);
631 }
632 if (showguides) {
633 for (GSList *v = SP_GUIDE(l->data)->views; v != NULL; v = v->next) {
634 sp_canvas_item_show(SP_CANVAS_ITEM(v->data));
635 }
636 } else {
637 for (GSList *v = SP_GUIDE(l->data)->views; v != NULL; v = v->next) {
638 sp_canvas_item_hide(SP_CANVAS_ITEM(v->data));
639 }
640 }
641 }
643 views = g_slist_prepend(views, desktop);
645 SPCanvasItem *item = sp_canvas_item_new(SP_DT_GRID(desktop), SP_TYPE_CGRID, NULL);
646 // since we're keeping a copy, we need to bump up the ref count
647 gtk_object_ref(GTK_OBJECT(item));
648 gridviews = g_slist_prepend(gridviews, item);
649 sp_namedview_setup_grid_item(this, item);
650 }
652 /*
653 * Restores window geometry from the document settings
654 */
655 void sp_namedview_window_from_document(SPDesktop *desktop)
656 {
657 SPNamedView *nv = desktop->namedview;
658 gint save_geometry = prefs_get_int_attribute("options.savewindowgeometry", "value", 0);
660 // restore window size and position
661 if (save_geometry) {
662 if (nv->window_width != -1 && nv->window_height != -1)
663 desktop->setWindowSize(nv->window_width, nv->window_height);
664 if (nv->window_x != -1 && nv->window_y != -1)
665 desktop->setWindowPosition(NR::Point(nv->window_x, nv->window_y));
666 }
668 // restore zoom and view
669 if (nv->zoom != 0 && nv->zoom != HUGE_VAL && !isNaN(nv->zoom)
670 && nv->cx != HUGE_VAL && !isNaN(nv->cx)
671 && nv->cy != HUGE_VAL && !isNaN(nv->cy)) {
672 desktop->zoom_absolute(nv->cx, nv->cy, nv->zoom);
673 } else if (SP_DT_DOCUMENT(desktop)) { // document without saved zoom, zoom to its page
674 desktop->zoom_page();
675 }
677 // cancel any history of zooms up to this point
678 if (desktop->zooms_past) {
679 g_list_free(desktop->zooms_past);
680 desktop->zooms_past = NULL;
681 }
683 SPObject *layer = NULL;
684 SPDocument *document = desktop->doc();
685 if ( nv->default_layer_id != 0 ) {
686 layer = document->getObjectById(g_quark_to_string(nv->default_layer_id));
687 }
688 // don't use that object if it's not at least group
689 if ( !layer || !SP_IS_GROUP(layer) ) {
690 layer = NULL;
691 }
692 // if that didn't work out, look for the topmost layer
693 if (!layer) {
694 SPObject *iter = sp_object_first_child(SP_DOCUMENT_ROOT(document));
695 for ( ; iter ; iter = SP_OBJECT_NEXT(iter) ) {
696 if (desktop->isLayer(iter)) {
697 layer = iter;
698 }
699 }
700 }
701 if (layer) {
702 desktop->setCurrentLayer(layer);
703 }
704 }
706 void sp_namedview_document_from_window(SPDesktop *desktop)
707 {
708 gint save_geometry = prefs_get_int_attribute("options.savewindowgeometry", "value", 0);
709 Inkscape::XML::Node *view = SP_OBJECT_REPR(desktop->namedview);
710 NR::Rect const r = desktop->get_display_area();
712 // saving window geometry is not undoable
713 gboolean saved = sp_document_get_undo_sensitive(SP_DT_DOCUMENT(desktop));
714 sp_document_set_undo_sensitive(SP_DT_DOCUMENT(desktop), FALSE);
716 sp_repr_set_svg_double(view, "inkscape:zoom", desktop->current_zoom());
717 sp_repr_set_svg_double(view, "inkscape:cx", r.midpoint()[NR::X]);
718 sp_repr_set_svg_double(view, "inkscape:cy", r.midpoint()[NR::Y]);
720 if (save_geometry) {
721 gint w, h, x, y;
722 desktop->getWindowGeometry(x, y, w, h);
723 sp_repr_set_int(view, "inkscape:window-width", w);
724 sp_repr_set_int(view, "inkscape:window-height", h);
725 sp_repr_set_int(view, "inkscape:window-x", x);
726 sp_repr_set_int(view, "inkscape:window-y", y);
727 }
729 view->setAttribute("inkscape:current-layer", SP_OBJECT_ID(desktop->currentLayer()));
731 // restore undoability
732 sp_document_set_undo_sensitive(SP_DT_DOCUMENT(desktop), saved);
733 }
735 void SPNamedView::hide(SPDesktop const *desktop)
736 {
737 g_assert(desktop != NULL);
738 g_assert(g_slist_find(views, desktop));
740 for (GSList *l = guides; l != NULL; l = l->next) {
741 sp_guide_hide(SP_GUIDE(l->data), SP_DT_CANVAS(desktop));
742 }
744 views = g_slist_remove(views, desktop);
746 GSList *l;
747 for (l = gridviews; l != NULL; l = l->next) {
748 if (SP_CANVAS_ITEM(l->data)->canvas == SP_DT_CANVAS(desktop)) {
749 break;
750 }
751 }
753 g_assert(l);
755 sp_canvas_item_hide(SP_CANVAS_ITEM(l->data));
756 gtk_object_unref(GTK_OBJECT(l->data));
757 gridviews = g_slist_remove(gridviews, l->data);
758 }
760 void SPNamedView::activateGuides(gpointer desktop, gboolean active)
761 {
762 g_assert(desktop != NULL);
763 g_assert(g_slist_find(views, desktop));
765 SPDesktop *dt = static_cast<SPDesktop*>(desktop);
767 for (GSList *l = guides; l != NULL; l = l->next) {
768 sp_guide_sensitize(SP_GUIDE(l->data), SP_DT_CANVAS(dt), active);
769 }
770 }
772 static void sp_namedview_setup_guides(SPNamedView *nv)
773 {
774 for (GSList *l = nv->guides; l != NULL; l = l->next) {
775 if (nv->showguides) {
776 for (GSList *v = SP_GUIDE(l->data)->views; v != NULL; v = v->next) {
777 sp_canvas_item_show(SP_CANVAS_ITEM(v->data));
778 }
779 } else {
780 for (GSList *v = SP_GUIDE(l->data)->views; v != NULL; v = v->next) {
781 sp_canvas_item_hide(SP_CANVAS_ITEM(v->data));
782 }
783 }
784 }
785 }
787 void sp_namedview_toggle_guides(SPDocument *doc, Inkscape::XML::Node *repr)
788 {
789 unsigned int v;
790 unsigned int set = sp_repr_get_boolean(repr, "showguides", &v);
791 if (!set) { // hide guides if not specified, for backwards compatibility
792 v = FALSE;
793 } else {
794 v = !v;
795 }
797 gboolean saved = sp_document_get_undo_sensitive(doc);
798 sp_document_set_undo_sensitive(doc, FALSE);
800 sp_repr_set_boolean(repr, "showguides", v);
802 doc->rroot->setAttribute("sodipodi:modified", "true");
803 sp_document_set_undo_sensitive(doc, saved);
804 }
806 void sp_namedview_toggle_grid(SPDocument *doc, Inkscape::XML::Node *repr)
807 {
808 unsigned int v;
809 sp_repr_get_boolean(repr, "showgrid", &v);
810 v = !v;
812 gboolean saved = sp_document_get_undo_sensitive(doc);
813 sp_document_set_undo_sensitive(doc, FALSE);
815 sp_repr_set_boolean(repr, "showgrid", v);
817 doc->rroot->setAttribute("sodipodi:modified", "true");
818 sp_document_set_undo_sensitive(doc, saved);
819 }
821 static void sp_namedview_setup_grid(SPNamedView *nv)
822 {
823 for (GSList *l = nv->gridviews; l != NULL; l = l->next) {
824 sp_namedview_setup_grid_item(nv, SP_CANVAS_ITEM(l->data));
825 }
826 }
828 static void sp_namedview_setup_grid_item(SPNamedView *nv, SPCanvasItem *item)
829 {
830 if (nv->showgrid) {
831 sp_canvas_item_show(item);
832 } else {
833 sp_canvas_item_hide(item);
834 }
836 sp_canvas_item_set((GtkObject *) item,
837 "color", nv->gridcolor,
838 "originx", nv->gridorigin[NR::X],
839 "originy", nv->gridorigin[NR::Y],
840 "spacingx", nv->gridspacing[NR::X],
841 "spacingy", nv->gridspacing[NR::Y],
842 "empcolor", nv->gridempcolor,
843 "empspacing", nv->gridempspacing,
844 NULL);
845 }
847 gchar const *SPNamedView::getName() const
848 {
849 SPException ex;
850 SP_EXCEPTION_INIT(&ex);
851 return sp_object_getAttribute(SP_OBJECT(this), "id", &ex);
852 }
854 guint SPNamedView::getViewCount()
855 {
856 return ++viewcount;
857 }
859 GSList const *SPNamedView::getViewList() const
860 {
861 return views;
862 }
864 /* This should be moved somewhere */
866 static gboolean sp_str_to_bool(const gchar *str)
867 {
868 if (str) {
869 if (!g_strcasecmp(str, "true") ||
870 !g_strcasecmp(str, "yes") ||
871 !g_strcasecmp(str, "y") ||
872 (atoi(str) != 0)) {
873 return TRUE;
874 }
875 }
877 return FALSE;
878 }
880 /* fixme: Collect all these length parsing methods and think common sane API */
882 static gboolean sp_nv_read_length(const gchar *str, guint base, gdouble *val, const SPUnit **unit)
883 {
884 if (!str) {
885 return FALSE;
886 }
888 gchar *u;
889 gdouble v = g_ascii_strtod(str, &u);
890 if (!u) {
891 return FALSE;
892 }
893 while (isspace(*u)) {
894 u += 1;
895 }
897 if (!*u) {
898 /* No unit specified - keep default */
899 *val = v;
900 return TRUE;
901 }
903 if (base & SP_UNIT_DEVICE) {
904 if (u[0] && u[1] && !isalnum(u[2]) && !strncmp(u, "px", 2)) {
905 *unit = &sp_unit_get_by_id(SP_UNIT_PX);
906 *val = v;
907 return TRUE;
908 }
909 }
911 if (base & SP_UNIT_ABSOLUTE) {
912 if (!strncmp(u, "pt", 2)) {
913 *unit = &sp_unit_get_by_id(SP_UNIT_PT);
914 } else if (!strncmp(u, "mm", 2)) {
915 *unit = &sp_unit_get_by_id(SP_UNIT_MM);
916 } else if (!strncmp(u, "cm", 2)) {
917 *unit = &sp_unit_get_by_id(SP_UNIT_CM);
918 } else if (!strncmp(u, "m", 1)) {
919 *unit = &sp_unit_get_by_id(SP_UNIT_M);
920 } else if (!strncmp(u, "in", 2)) {
921 *unit = &sp_unit_get_by_id(SP_UNIT_IN);
922 } else {
923 return FALSE;
924 }
925 *val = v;
926 return TRUE;
927 }
929 return FALSE;
930 }
932 static gboolean sp_nv_read_opacity(const gchar *str, guint32 *color)
933 {
934 if (!str) {
935 return FALSE;
936 }
938 gchar *u;
939 gdouble v = strtod(str, &u);
940 if (!u) {
941 return FALSE;
942 }
943 v = CLAMP(v, 0.0, 1.0);
945 *color = (*color & 0xffffff00) | (guint32) floor(v * 255.9999);
947 return TRUE;
948 }
950 SPNamedView *sp_document_namedview(SPDocument *document, const gchar *id)
951 {
952 g_return_val_if_fail(document != NULL, NULL);
954 SPObject *nv = sp_item_group_get_child_by_name((SPGroup *) document->root, NULL, "sodipodi:namedview");
955 g_assert(nv != NULL);
957 if (id == NULL) {
958 return (SPNamedView *) nv;
959 }
961 while (nv && strcmp(nv->id, id)) {
962 nv = sp_item_group_get_child_by_name((SPGroup *) document->root, nv, "sodipodi:namedview");
963 }
965 return (SPNamedView *) nv;
966 }
968 /**
969 * Returns namedview's default metric.
970 */
971 SPMetric SPNamedView::getDefaultMetric() const
972 {
973 if (doc_units) {
974 return sp_unit_get_metric(doc_units);
975 } else {
976 return SP_PT;
977 }
978 }
980 SPNamedView::SnapperList SPNamedView::getSnappers() const
981 {
982 SnapperList s;
983 s.push_back(&grid_snapper);
984 s.push_back(&guide_snapper);
985 s.push_back(&object_snapper);
986 return s;
987 }
989 /*
990 Local Variables:
991 mode:c++
992 c-file-style:"stroustrup"
993 c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
994 indent-tabs-mode:nil
995 fill-column:99
996 End:
997 */
998 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4 :