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) 1999-2005 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"
19 #include "display/canvas-grid.h"
20 #include "display/canvas-axonomgrid.h"
21 #include "helper/units.h"
22 #include "svg/svg-color.h"
23 #include "xml/repr.h"
24 #include "attributes.h"
25 #include "document.h"
26 #include "desktop-events.h"
27 #include "desktop-handles.h"
28 #include "event-log.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->gridtype = 0;
113 nv->showguides = TRUE;
114 nv->showborder = TRUE;
115 nv->showpageshadow = TRUE;
117 nv->guides = NULL;
118 nv->viewcount = 0;
120 nv->default_layer_id = 0;
122 nv->connector_spacing = defaultConnSpacing;
124 new (&nv->snap_manager) SnapManager(nv);
125 }
127 static void sp_namedview_build(SPObject *object, SPDocument *document, Inkscape::XML::Node *repr)
128 {
129 SPNamedView *nv = (SPNamedView *) object;
130 SPObjectGroup *og = (SPObjectGroup *) object;
132 if (((SPObjectClass *) (parent_class))->build) {
133 (* ((SPObjectClass *) (parent_class))->build)(object, document, repr);
134 }
136 sp_object_read_attr(object, "inkscape:document-units");
137 sp_object_read_attr(object, "viewonly");
138 sp_object_read_attr(object, "showgrid");
139 sp_object_read_attr(object, "gridtype");
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, "gridanglex");
150 sp_object_read_attr(object, "gridanglez");
151 sp_object_read_attr(object, "gridempspacing");
152 sp_object_read_attr(object, "gridcolor");
153 sp_object_read_attr(object, "gridempcolor");
154 sp_object_read_attr(object, "gridopacity");
155 sp_object_read_attr(object, "gridempopacity");
156 sp_object_read_attr(object, "guidecolor");
157 sp_object_read_attr(object, "guideopacity");
158 sp_object_read_attr(object, "guidehicolor");
159 sp_object_read_attr(object, "guidehiopacity");
160 sp_object_read_attr(object, "showborder");
161 sp_object_read_attr(object, "inkscape:showpageshadow");
162 sp_object_read_attr(object, "borderlayer");
163 sp_object_read_attr(object, "bordercolor");
164 sp_object_read_attr(object, "borderopacity");
165 sp_object_read_attr(object, "pagecolor");
166 sp_object_read_attr(object, "inkscape:pageopacity");
167 sp_object_read_attr(object, "inkscape:pageshadow");
168 sp_object_read_attr(object, "inkscape:zoom");
169 sp_object_read_attr(object, "inkscape:cx");
170 sp_object_read_attr(object, "inkscape:cy");
171 sp_object_read_attr(object, "inkscape:window-width");
172 sp_object_read_attr(object, "inkscape:window-height");
173 sp_object_read_attr(object, "inkscape:window-x");
174 sp_object_read_attr(object, "inkscape:window-y");
175 sp_object_read_attr(object, "inkscape:grid-bbox");
176 sp_object_read_attr(object, "inkscape:guide-bbox");
177 sp_object_read_attr(object, "inkscape:object-bbox");
178 sp_object_read_attr(object, "inkscape:grid-points");
179 sp_object_read_attr(object, "inkscape:guide-points");
180 sp_object_read_attr(object, "inkscape:object-points");
181 sp_object_read_attr(object, "inkscape:object-paths");
182 sp_object_read_attr(object, "inkscape:object-nodes");
183 sp_object_read_attr(object, "inkscape:current-layer");
184 sp_object_read_attr(object, "inkscape:connector-spacing");
186 /* Construct guideline list */
188 for (SPObject *o = sp_object_first_child(SP_OBJECT(og)) ; o != NULL; o = SP_OBJECT_NEXT(o) ) {
189 if (SP_IS_GUIDE(o)) {
190 SPGuide * g = SP_GUIDE(o);
191 nv->guides = g_slist_prepend(nv->guides, g);
192 g_object_set(G_OBJECT(g), "color", nv->guidecolor, "hicolor", nv->guidehicolor, NULL);
193 }
194 }
195 }
197 static void sp_namedview_release(SPObject *object)
198 {
199 SPNamedView *namedview = (SPNamedView *) object;
201 if (namedview->guides) {
202 g_slist_free(namedview->guides);
203 namedview->guides = NULL;
204 }
206 while (namedview->gridviews) {
207 gtk_object_unref(GTK_OBJECT(namedview->gridviews->data));
208 namedview->gridviews = g_slist_remove(namedview->gridviews, namedview->gridviews->data);
209 }
211 if (((SPObjectClass *) parent_class)->release) {
212 ((SPObjectClass *) parent_class)->release(object);
213 }
215 namedview->snap_manager.~SnapManager();
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 /* Disable grid snaps if the grid is turned off */
232 nv->snap_manager.grid.setEnabled(nv->showgrid);
233 nv->snap_manager.axonomgrid.setEnabled(nv->showgrid);
234 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
235 break;
236 case SP_ATTR_GRIDTYPE:
237 nv->gridtype = sp_str_to_bool(value);
238 sp_namedview_setup_grid(nv);
239 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
240 break;
241 case SP_ATTR_SHOWGUIDES:
242 if (!value) { // show guides if not specified, for backwards compatibility
243 nv->showguides = TRUE;
244 } else {
245 nv->showguides = sp_str_to_bool(value);
246 }
247 sp_namedview_setup_guides(nv);
248 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
249 break;
250 case SP_ATTR_GRIDTOLERANCE:
251 nv->gridtoleranceunit = &px;
252 nv->gridtolerance = DEFAULTTOLERANCE;
253 if (value) {
254 sp_nv_read_length(value, SP_UNIT_ABSOLUTE | SP_UNIT_DEVICE, &nv->gridtolerance, &nv->gridtoleranceunit);
255 }
256 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
257 break;
258 case SP_ATTR_GUIDETOLERANCE:
259 nv->guidetoleranceunit = &px;
260 nv->guidetolerance = DEFAULTTOLERANCE;
261 if (value) {
262 sp_nv_read_length(value, SP_UNIT_ABSOLUTE | SP_UNIT_DEVICE, &nv->guidetolerance, &nv->guidetoleranceunit);
263 }
264 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
265 break;
266 case SP_ATTR_OBJECTTOLERANCE:
267 nv->objecttoleranceunit = &px;
268 nv->objecttolerance = DEFAULTTOLERANCE;
269 if (value) {
270 sp_nv_read_length(value, SP_UNIT_ABSOLUTE | SP_UNIT_DEVICE, &nv->objecttolerance, &nv->objecttoleranceunit);
271 }
272 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
273 break;
274 case SP_ATTR_ABS_TOLERANCE:
275 if (!value)
276 nv->has_abs_tolerance = true;
277 else
278 nv->has_abs_tolerance = (sp_str_to_bool (value) == TRUE);
279 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
280 break;
281 case SP_ATTR_GRIDORIGINX:
282 case SP_ATTR_GRIDORIGINY:
283 {
284 unsigned const d = (key == SP_ATTR_GRIDORIGINY);
285 nv->gridunit = nv->doc_units;
286 nv->gridorigin[d] = 0.0;
287 if (value) {
288 sp_nv_read_length(value, SP_UNIT_ABSOLUTE | SP_UNIT_DEVICE, &nv->gridorigin[d], &nv->gridunit);
289 }
290 nv->gridorigin[d] = sp_units_get_pixels(nv->gridorigin[d], *(nv->gridunit));
291 sp_namedview_setup_grid(nv);
292 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
293 break;
294 }
295 case SP_ATTR_GRIDSPACINGX:
296 case SP_ATTR_GRIDSPACINGY:
297 {
298 unsigned const d = (key == SP_ATTR_GRIDSPACINGY);
299 nv->gridunit = nv->doc_units;
300 nv->gridspacing[d] = 1.0;
301 if (value) {
302 sp_nv_read_length(value, SP_UNIT_ABSOLUTE | SP_UNIT_DEVICE, &nv->gridspacing[d], &nv->gridunit);
303 }
304 nv->gridspacing[d] = sp_units_get_pixels(nv->gridspacing[d], *(nv->gridunit));
305 sp_namedview_setup_grid(nv);
306 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
307 break;
308 }
309 case SP_ATTR_GRIDANGLEX:
310 case SP_ATTR_GRIDANGLEZ:
311 {
312 unsigned const d = (key == SP_ATTR_GRIDANGLEZ); // 0=X 1=Z
313 nv->gridangle[d] = 30; // 30 deg default
314 if (value) {
315 nv->gridangle[d] = g_ascii_strtod(value, NULL);
316 }
317 sp_namedview_setup_grid(nv);
318 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
319 break;
320 }
321 case SP_ATTR_GRIDCOLOR:
322 nv->gridcolor = (nv->gridcolor & 0xff) | (DEFAULTGRIDCOLOR & 0xffffff00);
323 if (value) {
324 nv->gridcolor = (nv->gridcolor & 0xff) | sp_svg_read_color(value, nv->gridcolor);
325 }
326 sp_namedview_setup_grid(nv);
327 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
328 break;
329 case SP_ATTR_GRIDEMPCOLOR:
330 nv->gridempcolor = (nv->gridempcolor & 0xff) | (DEFAULTGRIDEMPCOLOR & 0xffffff00);
331 if (value) {
332 nv->gridempcolor = (nv->gridempcolor & 0xff) | sp_svg_read_color(value, nv->gridempcolor);
333 }
334 sp_namedview_setup_grid(nv);
335 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
336 break;
337 case SP_ATTR_GRIDOPACITY:
338 nv->gridcolor = (nv->gridcolor & 0xffffff00) | (DEFAULTGRIDCOLOR & 0xff);
339 sp_nv_read_opacity(value, &nv->gridcolor);
340 sp_namedview_setup_grid(nv);
341 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
342 break;
343 case SP_ATTR_GRIDEMPOPACITY:
344 nv->gridempcolor = (nv->gridempcolor & 0xffffff00) | (DEFAULTGRIDEMPCOLOR & 0xff);
345 sp_nv_read_opacity(value, &nv->gridempcolor);
346 sp_namedview_setup_grid(nv);
347 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
348 break;
349 case SP_ATTR_GRIDEMPSPACING:
350 nv->gridempspacing = DEFAULTGRIDEMPSPACING;
351 if (value != NULL)
352 nv->gridempspacing = atoi(value);
353 sp_namedview_setup_grid(nv);
354 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
355 break;
356 case SP_ATTR_GUIDECOLOR:
357 nv->guidecolor = (nv->guidecolor & 0xff) | (DEFAULTGUIDECOLOR & 0xffffff00);
358 if (value) {
359 nv->guidecolor = (nv->guidecolor & 0xff) | sp_svg_read_color(value, nv->guidecolor);
360 }
361 for (GSList *l = nv->guides; l != NULL; l = l->next) {
362 g_object_set(G_OBJECT(l->data), "color", nv->guidecolor, NULL);
363 }
364 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
365 break;
366 case SP_ATTR_GUIDEOPACITY:
367 nv->guidecolor = (nv->guidecolor & 0xffffff00) | (DEFAULTGUIDECOLOR & 0xff);
368 sp_nv_read_opacity(value, &nv->guidecolor);
369 for (GSList *l = nv->guides; l != NULL; l = l->next) {
370 g_object_set(G_OBJECT(l->data), "color", nv->guidecolor, NULL);
371 }
372 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
373 break;
374 case SP_ATTR_GUIDEHICOLOR:
375 nv->guidehicolor = (nv->guidehicolor & 0xff) | (DEFAULTGUIDEHICOLOR & 0xffffff00);
376 if (value) {
377 nv->guidehicolor = (nv->guidehicolor & 0xff) | sp_svg_read_color(value, nv->guidehicolor);
378 }
379 for (GSList *l = nv->guides; l != NULL; l = l->next) {
380 g_object_set(G_OBJECT(l->data), "hicolor", nv->guidehicolor, NULL);
381 }
382 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
383 break;
384 case SP_ATTR_GUIDEHIOPACITY:
385 nv->guidehicolor = (nv->guidehicolor & 0xffffff00) | (DEFAULTGUIDEHICOLOR & 0xff);
386 sp_nv_read_opacity(value, &nv->guidehicolor);
387 for (GSList *l = nv->guides; l != NULL; l = l->next) {
388 g_object_set(G_OBJECT(l->data), "hicolor", nv->guidehicolor, NULL);
389 }
390 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
391 break;
392 case SP_ATTR_SHOWBORDER:
393 nv->showborder = (value) ? sp_str_to_bool (value) : TRUE;
394 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
395 break;
396 case SP_ATTR_BORDERLAYER:
397 nv->borderlayer = SP_BORDER_LAYER_BOTTOM;
398 if (value && !strcasecmp(value, "true")) nv->borderlayer = SP_BORDER_LAYER_TOP;
399 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
400 break;
401 case SP_ATTR_BORDERCOLOR:
402 nv->bordercolor = (nv->bordercolor & 0xff) | (DEFAULTBORDERCOLOR & 0xffffff00);
403 if (value) {
404 nv->bordercolor = (nv->bordercolor & 0xff) | sp_svg_read_color (value, nv->bordercolor);
405 }
406 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
407 break;
408 case SP_ATTR_BORDEROPACITY:
409 nv->bordercolor = (nv->bordercolor & 0xffffff00) | (DEFAULTBORDERCOLOR & 0xff);
410 sp_nv_read_opacity(value, &nv->bordercolor);
411 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
412 break;
413 case SP_ATTR_PAGECOLOR:
414 nv->pagecolor = (nv->pagecolor & 0xff) | (DEFAULTPAGECOLOR & 0xffffff00);
415 if (value) {
416 nv->pagecolor = (nv->pagecolor & 0xff) | sp_svg_read_color(value, nv->pagecolor);
417 }
418 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
419 break;
420 case SP_ATTR_INKSCAPE_PAGEOPACITY:
421 nv->pagecolor = (nv->pagecolor & 0xffffff00) | (DEFAULTPAGECOLOR & 0xff);
422 sp_nv_read_opacity(value, &nv->pagecolor);
423 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
424 break;
425 case SP_ATTR_INKSCAPE_PAGESHADOW:
426 nv->pageshadow = value? atoi(value) : 2; // 2 is the default
427 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
428 break;
429 case SP_ATTR_SHOWPAGESHADOW:
430 nv->showpageshadow = (value) ? sp_str_to_bool(value) : TRUE;
431 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
432 break;
433 case SP_ATTR_INKSCAPE_ZOOM:
434 nv->zoom = value ? g_ascii_strtod(value, NULL) : 0; // zero means not set
435 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
436 break;
437 case SP_ATTR_INKSCAPE_CX:
438 nv->cx = value ? g_ascii_strtod(value, NULL) : HUGE_VAL; // HUGE_VAL means not set
439 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
440 break;
441 case SP_ATTR_INKSCAPE_CY:
442 nv->cy = value ? g_ascii_strtod(value, NULL) : HUGE_VAL; // HUGE_VAL means not set
443 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
444 break;
445 case SP_ATTR_INKSCAPE_WINDOW_WIDTH:
446 nv->window_width = value? atoi(value) : -1; // -1 means not set
447 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
448 break;
449 case SP_ATTR_INKSCAPE_WINDOW_HEIGHT:
450 nv->window_height = value ? atoi(value) : -1; // -1 means not set
451 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
452 break;
453 case SP_ATTR_INKSCAPE_WINDOW_X:
454 nv->window_x = value ? atoi(value) : -1; // -1 means not set
455 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
456 break;
457 case SP_ATTR_INKSCAPE_WINDOW_Y:
458 nv->window_y = value ? atoi(value) : -1; // -1 means not set
459 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
460 break;
461 case SP_ATTR_INKSCAPE_GRID_BBOX:
462 nv->snap_manager.grid.setSnapTo(Inkscape::Snapper::BBOX_POINT, value ? sp_str_to_bool(value) : TRUE);
463 nv->snap_manager.axonomgrid.setSnapTo(Inkscape::Snapper::BBOX_POINT, value ? sp_str_to_bool(value) : TRUE);
464 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
465 break;
466 case SP_ATTR_INKSCAPE_GRID_POINTS:
467 nv->snap_manager.grid.setSnapTo(Inkscape::Snapper::SNAP_POINT, value ? sp_str_to_bool(value) : FALSE);
468 nv->snap_manager.axonomgrid.setSnapTo(Inkscape::Snapper::SNAP_POINT, value ? sp_str_to_bool(value) : FALSE);
469 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
470 break;
471 case SP_ATTR_INKSCAPE_GUIDE_BBOX:
472 nv->snap_manager.guide.setSnapTo(Inkscape::Snapper::BBOX_POINT, value ? sp_str_to_bool(value) : TRUE);
473 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
474 break;
475 case SP_ATTR_INKSCAPE_GUIDE_POINTS:
476 nv->snap_manager.guide.setSnapTo(Inkscape::Snapper::SNAP_POINT, value ? sp_str_to_bool(value) : FALSE);
477 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
478 break;
479 case SP_ATTR_INKSCAPE_OBJECT_BBOX:
480 nv->snap_manager.object.setSnapTo(Inkscape::Snapper::BBOX_POINT, (value) ? sp_str_to_bool(value) : FALSE);
481 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
482 break;
483 case SP_ATTR_INKSCAPE_OBJECT_POINTS:
484 nv->snap_manager.object.setSnapTo(Inkscape::Snapper::SNAP_POINT, (value) ? sp_str_to_bool(value) : FALSE);
485 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
486 break;
487 case SP_ATTR_INKSCAPE_OBJECT_PATHS:
488 nv->snap_manager.object.setSnapToPaths(value ? sp_str_to_bool(value) : TRUE);
489 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
490 break;
491 case SP_ATTR_INKSCAPE_OBJECT_NODES:
492 nv->snap_manager.object.setSnapToNodes(value ? sp_str_to_bool(value) : TRUE);
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_desktop_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_desktop_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_desktop_grid(desktop), INKSCAPE_TYPE_CXYGRID, 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);
650 item = sp_canvas_item_new(sp_desktop_grid(desktop), SP_TYPE_CAXONOMGRID, NULL);
651 // since we're keeping a copy, we need to bump up the ref count
652 gtk_object_ref(GTK_OBJECT(item));
653 gridviews = g_slist_prepend(gridviews, item);
655 sp_namedview_setup_grid(this);
656 }
658 #define MIN_ONSCREEN_DISTANCE 50
660 /*
661 * Restores window geometry from the document settings
662 */
663 void sp_namedview_window_from_document(SPDesktop *desktop)
664 {
665 SPNamedView *nv = desktop->namedview;
666 gint save_geometry = prefs_get_int_attribute("options.savewindowgeometry", "value", 0);
668 // restore window size and position
669 if (save_geometry) {
670 gint w = MIN(gdk_screen_width(), nv->window_width);
671 gint h = MIN(gdk_screen_height(), nv->window_height);
672 gint x = MIN(gdk_screen_width() - MIN_ONSCREEN_DISTANCE, nv->window_x);
673 gint y = MIN(gdk_screen_height() - MIN_ONSCREEN_DISTANCE, nv->window_y);
674 if (w>0 && h>0 && x>0 && y>0) {
675 x = MIN(gdk_screen_width() - w, x);
676 y = MIN(gdk_screen_height() - h, y);
677 }
678 if (w>0 && h>0)
679 desktop->setWindowSize(w, h);
680 if (x>0 && y>0)
681 desktop->setWindowPosition(NR::Point(x, y));
682 }
684 // restore zoom and view
685 if (nv->zoom != 0 && nv->zoom != HUGE_VAL && !isNaN(nv->zoom)
686 && nv->cx != HUGE_VAL && !isNaN(nv->cx)
687 && nv->cy != HUGE_VAL && !isNaN(nv->cy)) {
688 desktop->zoom_absolute(nv->cx, nv->cy, nv->zoom);
689 } else if (sp_desktop_document(desktop)) { // document without saved zoom, zoom to its page
690 desktop->zoom_page();
691 }
693 // cancel any history of zooms up to this point
694 if (desktop->zooms_past) {
695 g_list_free(desktop->zooms_past);
696 desktop->zooms_past = NULL;
697 }
698 }
700 void sp_namedview_update_layers_from_document (SPDesktop *desktop)
701 {
702 SPObject *layer = NULL;
703 SPDocument *document = desktop->doc();
704 SPNamedView *nv = desktop->namedview;
705 if ( nv->default_layer_id != 0 ) {
706 layer = document->getObjectById(g_quark_to_string(nv->default_layer_id));
707 }
708 // don't use that object if it's not at least group
709 if ( !layer || !SP_IS_GROUP(layer) ) {
710 layer = NULL;
711 }
712 // if that didn't work out, look for the topmost layer
713 if (!layer) {
714 SPObject *iter = sp_object_first_child(SP_DOCUMENT_ROOT(document));
715 for ( ; iter ; iter = SP_OBJECT_NEXT(iter) ) {
716 if (desktop->isLayer(iter)) {
717 layer = iter;
718 }
719 }
720 }
721 if (layer) {
722 desktop->setCurrentLayer(layer);
723 }
725 // FIXME: find a better place to do this
726 desktop->event_log->updateUndoVerbs();
727 }
729 void sp_namedview_document_from_window(SPDesktop *desktop)
730 {
731 gint save_geometry = prefs_get_int_attribute("options.savewindowgeometry", "value", 0);
732 Inkscape::XML::Node *view = SP_OBJECT_REPR(desktop->namedview);
733 NR::Rect const r = desktop->get_display_area();
735 // saving window geometry is not undoable
736 bool saved = sp_document_get_undo_sensitive(sp_desktop_document(desktop));
737 sp_document_set_undo_sensitive(sp_desktop_document(desktop), false);
739 sp_repr_set_svg_double(view, "inkscape:zoom", desktop->current_zoom());
740 sp_repr_set_svg_double(view, "inkscape:cx", r.midpoint()[NR::X]);
741 sp_repr_set_svg_double(view, "inkscape:cy", r.midpoint()[NR::Y]);
743 if (save_geometry) {
744 gint w, h, x, y;
745 desktop->getWindowGeometry(x, y, w, h);
746 sp_repr_set_int(view, "inkscape:window-width", w);
747 sp_repr_set_int(view, "inkscape:window-height", h);
748 sp_repr_set_int(view, "inkscape:window-x", x);
749 sp_repr_set_int(view, "inkscape:window-y", y);
750 }
752 view->setAttribute("inkscape:current-layer", SP_OBJECT_ID(desktop->currentLayer()));
754 // restore undoability
755 sp_document_set_undo_sensitive(sp_desktop_document(desktop), saved);
756 }
758 void SPNamedView::hide(SPDesktop const *desktop)
759 {
760 g_assert(desktop != NULL);
761 g_assert(g_slist_find(views, desktop));
763 for (GSList *l = guides; l != NULL; l = l->next) {
764 sp_guide_hide(SP_GUIDE(l->data), sp_desktop_canvas(desktop));
765 }
767 views = g_slist_remove(views, desktop);
769 GSList *l;
770 for (l = gridviews; l != NULL; l = l->next) {
771 if (! l->data) {
772 continue;
773 }
774 SPCanvasItem *item = static_cast<SPCanvasItem*>(l->data);
776 if (item->canvas == sp_desktop_canvas(desktop)) {
777 sp_canvas_item_hide(SP_CANVAS_ITEM(l->data));
778 gtk_object_unref(GTK_OBJECT(l->data));
779 gridviews = g_slist_remove(gridviews, l->data);
780 }
781 }
782 }
784 void SPNamedView::activateGuides(gpointer desktop, gboolean active)
785 {
786 g_assert(desktop != NULL);
787 g_assert(g_slist_find(views, desktop));
789 SPDesktop *dt = static_cast<SPDesktop*>(desktop);
791 for (GSList *l = guides; l != NULL; l = l->next) {
792 sp_guide_sensitize(SP_GUIDE(l->data), sp_desktop_canvas(dt), active);
793 }
794 }
796 static void sp_namedview_setup_guides(SPNamedView *nv)
797 {
798 for (GSList *l = nv->guides; l != NULL; l = l->next) {
799 if (nv->showguides) {
800 for (GSList *v = SP_GUIDE(l->data)->views; v != NULL; v = v->next) {
801 sp_canvas_item_show(SP_CANVAS_ITEM(v->data));
802 }
803 } else {
804 for (GSList *v = SP_GUIDE(l->data)->views; v != NULL; v = v->next) {
805 sp_canvas_item_hide(SP_CANVAS_ITEM(v->data));
806 }
807 }
808 }
809 }
811 void sp_namedview_toggle_guides(SPDocument *doc, Inkscape::XML::Node *repr)
812 {
813 unsigned int v;
814 unsigned int set = sp_repr_get_boolean(repr, "showguides", &v);
815 if (!set) { // hide guides if not specified, for backwards compatibility
816 v = FALSE;
817 } else {
818 v = !v;
819 }
821 bool saved = sp_document_get_undo_sensitive(doc);
822 sp_document_set_undo_sensitive(doc, false);
824 sp_repr_set_boolean(repr, "showguides", v);
826 doc->rroot->setAttribute("sodipodi:modified", "true");
827 sp_document_set_undo_sensitive(doc, saved);
828 }
830 void sp_namedview_toggle_grid(SPDocument *doc, Inkscape::XML::Node *repr)
831 {
832 unsigned int v;
833 sp_repr_get_boolean(repr, "showgrid", &v);
834 v = !v;
836 bool saved = sp_document_get_undo_sensitive(doc);
837 sp_document_set_undo_sensitive(doc, false);
839 sp_repr_set_boolean(repr, "showgrid", v);
841 doc->rroot->setAttribute("sodipodi:modified", "true");
842 sp_document_set_undo_sensitive(doc, saved);
843 }
845 void sp_namedview_set_gridtype(unsigned int type, SPDocument *doc, Inkscape::XML::Node *repr)
846 {
847 bool saved = sp_document_get_undo_sensitive(doc);
848 sp_document_set_undo_sensitive(doc, false);
850 sp_repr_set_int(repr, "gridtype", (gint)type);
852 doc->rroot->setAttribute("sodipodi:modified", "true");
853 sp_document_set_undo_sensitive(doc, saved);
854 }
856 static void sp_namedview_setup_grid(SPNamedView *nv)
857 {
858 for (GSList *l = nv->gridviews; l != NULL; l = l->next) {
859 sp_namedview_setup_grid_item(nv, SP_CANVAS_ITEM(l->data));
860 }
861 }
863 static void sp_namedview_setup_grid_item(SPNamedView *nv, SPCanvasItem *item)
864 {
865 bool btype = SP_IS_CAXONOMGRID(GTK_OBJECT(item));
867 if ( nv->showgrid && (nv->gridtype == btype) ) {
868 sp_canvas_item_show(item);
869 } else {
870 sp_canvas_item_hide(item);
871 }
873 sp_canvas_item_set((GtkObject *) item,
874 "color", nv->gridcolor,
875 "originx", nv->gridorigin[NR::X],
876 "originy", nv->gridorigin[NR::Y],
877 "spacingy", nv->gridspacing[NR::Y],
878 "empcolor", nv->gridempcolor,
879 "empspacing", nv->gridempspacing,
880 NULL);
881 if (!btype){
882 // CXYGRID
883 sp_canvas_item_set((GtkObject *) item,
884 "spacingx", nv->gridspacing[NR::X],
885 NULL);
886 } else {
887 // CAXONOMGRID
888 sp_canvas_item_set((GtkObject *) item,
889 "anglex", nv->gridangle[0],
890 "anglez", nv->gridangle[1],
891 NULL);
892 }
893 }
896 gchar const *SPNamedView::getName() const
897 {
898 SPException ex;
899 SP_EXCEPTION_INIT(&ex);
900 return sp_object_getAttribute(SP_OBJECT(this), "id", &ex);
901 }
903 guint SPNamedView::getViewCount()
904 {
905 return ++viewcount;
906 }
908 GSList const *SPNamedView::getViewList() const
909 {
910 return views;
911 }
913 /* This should be moved somewhere */
915 static gboolean sp_str_to_bool(const gchar *str)
916 {
917 if (str) {
918 if (!g_strcasecmp(str, "true") ||
919 !g_strcasecmp(str, "yes") ||
920 !g_strcasecmp(str, "y") ||
921 (atoi(str) != 0)) {
922 return TRUE;
923 }
924 }
926 return FALSE;
927 }
929 /* fixme: Collect all these length parsing methods and think common sane API */
931 static gboolean sp_nv_read_length(const gchar *str, guint base, gdouble *val, const SPUnit **unit)
932 {
933 if (!str) {
934 return FALSE;
935 }
937 gchar *u;
938 gdouble v = g_ascii_strtod(str, &u);
939 if (!u) {
940 return FALSE;
941 }
942 while (isspace(*u)) {
943 u += 1;
944 }
946 if (!*u) {
947 /* No unit specified - keep default */
948 *val = v;
949 return TRUE;
950 }
952 if (base & SP_UNIT_DEVICE) {
953 if (u[0] && u[1] && !isalnum(u[2]) && !strncmp(u, "px", 2)) {
954 *unit = &sp_unit_get_by_id(SP_UNIT_PX);
955 *val = v;
956 return TRUE;
957 }
958 }
960 if (base & SP_UNIT_ABSOLUTE) {
961 if (!strncmp(u, "pt", 2)) {
962 *unit = &sp_unit_get_by_id(SP_UNIT_PT);
963 } else if (!strncmp(u, "mm", 2)) {
964 *unit = &sp_unit_get_by_id(SP_UNIT_MM);
965 } else if (!strncmp(u, "cm", 2)) {
966 *unit = &sp_unit_get_by_id(SP_UNIT_CM);
967 } else if (!strncmp(u, "m", 1)) {
968 *unit = &sp_unit_get_by_id(SP_UNIT_M);
969 } else if (!strncmp(u, "in", 2)) {
970 *unit = &sp_unit_get_by_id(SP_UNIT_IN);
971 } else {
972 return FALSE;
973 }
974 *val = v;
975 return TRUE;
976 }
978 return FALSE;
979 }
981 static gboolean sp_nv_read_opacity(const gchar *str, guint32 *color)
982 {
983 if (!str) {
984 return FALSE;
985 }
987 gchar *u;
988 gdouble v = g_ascii_strtod(str, &u);
989 if (!u) {
990 return FALSE;
991 }
992 v = CLAMP(v, 0.0, 1.0);
994 *color = (*color & 0xffffff00) | (guint32) floor(v * 255.9999);
996 return TRUE;
997 }
999 SPNamedView *sp_document_namedview(SPDocument *document, const gchar *id)
1000 {
1001 g_return_val_if_fail(document != NULL, NULL);
1003 SPObject *nv = sp_item_group_get_child_by_name((SPGroup *) document->root, NULL, "sodipodi:namedview");
1004 g_assert(nv != NULL);
1006 if (id == NULL) {
1007 return (SPNamedView *) nv;
1008 }
1010 while (nv && strcmp(nv->id, id)) {
1011 nv = sp_item_group_get_child_by_name((SPGroup *) document->root, nv, "sodipodi:namedview");
1012 }
1014 return (SPNamedView *) nv;
1015 }
1017 /**
1018 * Returns namedview's default metric.
1019 */
1020 SPMetric SPNamedView::getDefaultMetric() const
1021 {
1022 if (doc_units) {
1023 return sp_unit_get_metric(doc_units);
1024 } else {
1025 return SP_PT;
1026 }
1027 }
1029 /*
1030 Local Variables:
1031 mode:c++
1032 c-file-style:"stroustrup"
1033 c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
1034 indent-tabs-mode:nil
1035 fill-column:99
1036 End:
1037 */
1038 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4 :