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 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
234 break;
235 case SP_ATTR_GRIDTYPE:
236 nv->gridtype = sp_str_to_bool(value);
237 sp_namedview_setup_grid(nv);
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 sp_namedview_setup_guides(nv);
247 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
248 break;
249 case SP_ATTR_GRIDTOLERANCE:
250 nv->gridtoleranceunit = &px;
251 nv->gridtolerance = DEFAULTTOLERANCE;
252 if (value) {
253 sp_nv_read_length(value, SP_UNIT_ABSOLUTE | SP_UNIT_DEVICE, &nv->gridtolerance, &nv->gridtoleranceunit);
254 }
255 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
256 break;
257 case SP_ATTR_GUIDETOLERANCE:
258 nv->guidetoleranceunit = &px;
259 nv->guidetolerance = DEFAULTTOLERANCE;
260 if (value) {
261 sp_nv_read_length(value, SP_UNIT_ABSOLUTE | SP_UNIT_DEVICE, &nv->guidetolerance, &nv->guidetoleranceunit);
262 }
263 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
264 break;
265 case SP_ATTR_OBJECTTOLERANCE:
266 nv->objecttoleranceunit = &px;
267 nv->objecttolerance = DEFAULTTOLERANCE;
268 if (value) {
269 sp_nv_read_length(value, SP_UNIT_ABSOLUTE | SP_UNIT_DEVICE, &nv->objecttolerance, &nv->objecttoleranceunit);
270 }
271 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
272 break;
273 case SP_ATTR_ABS_TOLERANCE:
274 if (!value)
275 nv->has_abs_tolerance = true;
276 else
277 nv->has_abs_tolerance = (sp_str_to_bool (value) == TRUE);
278 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
279 break;
280 case SP_ATTR_GRIDORIGINX:
281 case SP_ATTR_GRIDORIGINY:
282 {
283 unsigned const d = (key == SP_ATTR_GRIDORIGINY);
284 nv->gridunit = nv->doc_units;
285 nv->gridorigin[d] = 0.0;
286 if (value) {
287 sp_nv_read_length(value, SP_UNIT_ABSOLUTE | SP_UNIT_DEVICE, &nv->gridorigin[d], &nv->gridunit);
288 }
289 nv->gridorigin[d] = sp_units_get_pixels(nv->gridorigin[d], *(nv->gridunit));
290 sp_namedview_setup_grid(nv);
291 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
292 break;
293 }
294 case SP_ATTR_GRIDSPACINGX:
295 case SP_ATTR_GRIDSPACINGY:
296 {
297 unsigned const d = (key == SP_ATTR_GRIDSPACINGY);
298 nv->gridunit = nv->doc_units;
299 nv->gridspacing[d] = 1.0;
300 if (value) {
301 sp_nv_read_length(value, SP_UNIT_ABSOLUTE | SP_UNIT_DEVICE, &nv->gridspacing[d], &nv->gridunit);
302 }
303 nv->gridspacing[d] = sp_units_get_pixels(nv->gridspacing[d], *(nv->gridunit));
304 sp_namedview_setup_grid(nv);
305 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
306 break;
307 }
308 case SP_ATTR_GRIDANGLEX:
309 case SP_ATTR_GRIDANGLEZ:
310 {
311 unsigned const d = (key == SP_ATTR_GRIDANGLEZ); // 0=X 1=Z
312 nv->gridangle[d] = 30; // 30 deg default
313 if (value) {
314 nv->gridangle[d] = g_ascii_strtod(value, NULL);
315 }
316 sp_namedview_setup_grid(nv);
317 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
318 break;
319 }
320 case SP_ATTR_GRIDCOLOR:
321 nv->gridcolor = (nv->gridcolor & 0xff) | (DEFAULTGRIDCOLOR & 0xffffff00);
322 if (value) {
323 nv->gridcolor = (nv->gridcolor & 0xff) | sp_svg_read_color(value, nv->gridcolor);
324 }
325 sp_namedview_setup_grid(nv);
326 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
327 break;
328 case SP_ATTR_GRIDEMPCOLOR:
329 nv->gridempcolor = (nv->gridempcolor & 0xff) | (DEFAULTGRIDEMPCOLOR & 0xffffff00);
330 if (value) {
331 nv->gridempcolor = (nv->gridempcolor & 0xff) | sp_svg_read_color(value, nv->gridempcolor);
332 }
333 sp_namedview_setup_grid(nv);
334 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
335 break;
336 case SP_ATTR_GRIDOPACITY:
337 nv->gridcolor = (nv->gridcolor & 0xffffff00) | (DEFAULTGRIDCOLOR & 0xff);
338 sp_nv_read_opacity(value, &nv->gridcolor);
339 sp_namedview_setup_grid(nv);
340 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
341 break;
342 case SP_ATTR_GRIDEMPOPACITY:
343 nv->gridempcolor = (nv->gridempcolor & 0xffffff00) | (DEFAULTGRIDEMPCOLOR & 0xff);
344 sp_nv_read_opacity(value, &nv->gridempcolor);
345 sp_namedview_setup_grid(nv);
346 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
347 break;
348 case SP_ATTR_GRIDEMPSPACING:
349 nv->gridempspacing = DEFAULTGRIDEMPSPACING;
350 if (value != NULL)
351 nv->gridempspacing = atoi(value);
352 sp_namedview_setup_grid(nv);
353 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
354 break;
355 case SP_ATTR_GUIDECOLOR:
356 nv->guidecolor = (nv->guidecolor & 0xff) | (DEFAULTGUIDECOLOR & 0xffffff00);
357 if (value) {
358 nv->guidecolor = (nv->guidecolor & 0xff) | sp_svg_read_color(value, nv->guidecolor);
359 }
360 for (GSList *l = nv->guides; l != NULL; l = l->next) {
361 g_object_set(G_OBJECT(l->data), "color", nv->guidecolor, NULL);
362 }
363 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
364 break;
365 case SP_ATTR_GUIDEOPACITY:
366 nv->guidecolor = (nv->guidecolor & 0xffffff00) | (DEFAULTGUIDECOLOR & 0xff);
367 sp_nv_read_opacity(value, &nv->guidecolor);
368 for (GSList *l = nv->guides; l != NULL; l = l->next) {
369 g_object_set(G_OBJECT(l->data), "color", nv->guidecolor, NULL);
370 }
371 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
372 break;
373 case SP_ATTR_GUIDEHICOLOR:
374 nv->guidehicolor = (nv->guidehicolor & 0xff) | (DEFAULTGUIDEHICOLOR & 0xffffff00);
375 if (value) {
376 nv->guidehicolor = (nv->guidehicolor & 0xff) | sp_svg_read_color(value, nv->guidehicolor);
377 }
378 for (GSList *l = nv->guides; l != NULL; l = l->next) {
379 g_object_set(G_OBJECT(l->data), "hicolor", nv->guidehicolor, NULL);
380 }
381 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
382 break;
383 case SP_ATTR_GUIDEHIOPACITY:
384 nv->guidehicolor = (nv->guidehicolor & 0xffffff00) | (DEFAULTGUIDEHICOLOR & 0xff);
385 sp_nv_read_opacity(value, &nv->guidehicolor);
386 for (GSList *l = nv->guides; l != NULL; l = l->next) {
387 g_object_set(G_OBJECT(l->data), "hicolor", nv->guidehicolor, NULL);
388 }
389 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
390 break;
391 case SP_ATTR_SHOWBORDER:
392 nv->showborder = (value) ? sp_str_to_bool (value) : TRUE;
393 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
394 break;
395 case SP_ATTR_BORDERLAYER:
396 nv->borderlayer = SP_BORDER_LAYER_BOTTOM;
397 if (value && !strcasecmp(value, "true")) nv->borderlayer = SP_BORDER_LAYER_TOP;
398 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
399 break;
400 case SP_ATTR_BORDERCOLOR:
401 nv->bordercolor = (nv->bordercolor & 0xff) | (DEFAULTBORDERCOLOR & 0xffffff00);
402 if (value) {
403 nv->bordercolor = (nv->bordercolor & 0xff) | sp_svg_read_color (value, nv->bordercolor);
404 }
405 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
406 break;
407 case SP_ATTR_BORDEROPACITY:
408 nv->bordercolor = (nv->bordercolor & 0xffffff00) | (DEFAULTBORDERCOLOR & 0xff);
409 sp_nv_read_opacity(value, &nv->bordercolor);
410 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
411 break;
412 case SP_ATTR_PAGECOLOR:
413 nv->pagecolor = (nv->pagecolor & 0xff) | (DEFAULTPAGECOLOR & 0xffffff00);
414 if (value) {
415 nv->pagecolor = (nv->pagecolor & 0xff) | sp_svg_read_color(value, nv->pagecolor);
416 }
417 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
418 break;
419 case SP_ATTR_INKSCAPE_PAGEOPACITY:
420 nv->pagecolor = (nv->pagecolor & 0xffffff00) | (DEFAULTPAGECOLOR & 0xff);
421 sp_nv_read_opacity(value, &nv->pagecolor);
422 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
423 break;
424 case SP_ATTR_INKSCAPE_PAGESHADOW:
425 nv->pageshadow = value? atoi(value) : 2; // 2 is the default
426 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
427 break;
428 case SP_ATTR_SHOWPAGESHADOW:
429 nv->showpageshadow = (value) ? sp_str_to_bool(value) : TRUE;
430 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
431 break;
432 case SP_ATTR_INKSCAPE_ZOOM:
433 nv->zoom = value ? g_ascii_strtod(value, NULL) : 0; // zero means not set
434 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
435 break;
436 case SP_ATTR_INKSCAPE_CX:
437 nv->cx = value ? g_ascii_strtod(value, NULL) : HUGE_VAL; // HUGE_VAL means not set
438 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
439 break;
440 case SP_ATTR_INKSCAPE_CY:
441 nv->cy = value ? g_ascii_strtod(value, NULL) : HUGE_VAL; // HUGE_VAL means not set
442 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
443 break;
444 case SP_ATTR_INKSCAPE_WINDOW_WIDTH:
445 nv->window_width = value? atoi(value) : -1; // -1 means not set
446 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
447 break;
448 case SP_ATTR_INKSCAPE_WINDOW_HEIGHT:
449 nv->window_height = value ? atoi(value) : -1; // -1 means not set
450 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
451 break;
452 case SP_ATTR_INKSCAPE_WINDOW_X:
453 nv->window_x = value ? atoi(value) : -1; // -1 means not set
454 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
455 break;
456 case SP_ATTR_INKSCAPE_WINDOW_Y:
457 nv->window_y = value ? atoi(value) : -1; // -1 means not set
458 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
459 break;
460 case SP_ATTR_INKSCAPE_GRID_BBOX:
461 nv->snap_manager.grid.setSnapTo(Inkscape::Snapper::BBOX_POINT, value ? sp_str_to_bool(value) : TRUE);
462 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
463 break;
464 case SP_ATTR_INKSCAPE_GRID_POINTS:
465 nv->snap_manager.grid.setSnapTo(Inkscape::Snapper::SNAP_POINT, value ? sp_str_to_bool(value) : FALSE);
466 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
467 break;
468 case SP_ATTR_INKSCAPE_GUIDE_BBOX:
469 nv->snap_manager.guide.setSnapTo(Inkscape::Snapper::BBOX_POINT, value ? sp_str_to_bool(value) : TRUE);
470 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
471 break;
472 case SP_ATTR_INKSCAPE_GUIDE_POINTS:
473 nv->snap_manager.guide.setSnapTo(Inkscape::Snapper::SNAP_POINT, value ? sp_str_to_bool(value) : FALSE);
474 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
475 break;
476 case SP_ATTR_INKSCAPE_OBJECT_BBOX:
477 nv->snap_manager.object.setSnapTo(Inkscape::Snapper::BBOX_POINT, (value) ? sp_str_to_bool(value) : FALSE);
478 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
479 break;
480 case SP_ATTR_INKSCAPE_OBJECT_POINTS:
481 nv->snap_manager.object.setSnapTo(Inkscape::Snapper::SNAP_POINT, (value) ? sp_str_to_bool(value) : FALSE);
482 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
483 break;
484 case SP_ATTR_INKSCAPE_OBJECT_PATHS:
485 nv->snap_manager.object.setSnapToPaths(value ? sp_str_to_bool(value) : TRUE);
486 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
487 break;
488 case SP_ATTR_INKSCAPE_OBJECT_NODES:
489 nv->snap_manager.object.setSnapToNodes(value ? sp_str_to_bool(value) : TRUE);
490 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
491 break;
492 case SP_ATTR_INKSCAPE_CURRENT_LAYER:
493 nv->default_layer_id = value ? g_quark_from_string(value) : 0;
494 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
495 break;
496 case SP_ATTR_INKSCAPE_CONNECTOR_SPACING:
497 nv->connector_spacing = value ? g_ascii_strtod(value, NULL) :
498 defaultConnSpacing;
499 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
500 break;
501 case SP_ATTR_INKSCAPE_DOCUMENT_UNITS: {
502 /* The default unit if the document doesn't override this: e.g. for files saved as
503 * `plain SVG', or non-inkscape files, or files created by an inkscape 0.40 &
504 * earlier.
505 *
506 * Here we choose `px': useful for screen-destined SVGs, and fewer bug reports
507 * about "not the same numbers as what's in the SVG file" (at least for documents
508 * without a viewBox attribute on the root <svg> element). Similarly, it's also
509 * the most reliable unit (i.e. least likely to be wrong in different viewing
510 * conditions) for viewBox-less SVG files given that it's the unit that inkscape
511 * uses for all coordinates.
512 *
513 * For documents that do have a viewBox attribute on the root <svg> element, it
514 * might be better if we used either viewBox coordinates or if we used the unit of
515 * say the width attribute of the root <svg> element. However, these pose problems
516 * in that they aren't in general absolute units as currently required by
517 * doc_units.
518 */
519 SPUnit const *new_unit = &sp_unit_get_by_id(SP_UNIT_PX);
521 if (value) {
522 SPUnit const *const req_unit = sp_unit_get_by_abbreviation(value);
523 if ( req_unit == NULL ) {
524 g_warning("Unrecognized unit `%s'", value);
525 /* fixme: Document errors should be reported in the status bar or
526 * the like (e.g. as per
527 * http://www.w3.org/TR/SVG11/implnote.html#ErrorProcessing); g_log
528 * should be only for programmer errors. */
529 } else if ( req_unit->base == SP_UNIT_ABSOLUTE ||
530 req_unit->base == SP_UNIT_DEVICE ) {
531 new_unit = req_unit;
532 } else {
533 g_warning("Document units must be absolute like `mm', `pt' or `px', but found `%s'",
534 value);
535 /* fixme: Don't use g_log (see above). */
536 }
537 }
538 nv->doc_units = new_unit;
539 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
540 break;
541 }
542 default:
543 if (((SPObjectClass *) (parent_class))->set) {
544 ((SPObjectClass *) (parent_class))->set(object, key, value);
545 }
546 break;
547 }
548 }
550 static void sp_namedview_child_added(SPObject *object, Inkscape::XML::Node *child, Inkscape::XML::Node *ref)
551 {
552 SPNamedView *nv = (SPNamedView *) object;
554 if (((SPObjectClass *) (parent_class))->child_added) {
555 (* ((SPObjectClass *) (parent_class))->child_added)(object, child, ref);
556 }
558 const gchar *id = child->attribute("id");
559 SPObject *no = object->document->getObjectById(id);
560 g_assert(SP_IS_OBJECT(no));
562 if (SP_IS_GUIDE(no)) {
563 SPGuide *g = (SPGuide *) no;
564 nv->guides = g_slist_prepend(nv->guides, g);
565 g_object_set(G_OBJECT(g), "color", nv->guidecolor, "hicolor", nv->guidehicolor, NULL);
566 if (nv->editable) {
567 for (GSList *l = nv->views; l != NULL; l = l->next) {
568 sp_guide_show(g, static_cast<SPDesktop*>(l->data)->guides, (GCallback) sp_dt_guide_event);
569 if (static_cast<SPDesktop*>(l->data)->guides_active)
570 sp_guide_sensitize(g,
571 sp_desktop_canvas(static_cast<SPDesktop*> (l->data)),
572 TRUE);
573 if (nv->showguides) {
574 for (GSList *v = SP_GUIDE(g)->views; v != NULL; v = v->next) {
575 sp_canvas_item_show(SP_CANVAS_ITEM(v->data));
576 }
577 } else {
578 for (GSList *v = SP_GUIDE(g)->views; v != NULL; v = v->next) {
579 sp_canvas_item_hide(SP_CANVAS_ITEM(v->data));
580 }
581 }
582 }
583 }
584 }
585 }
587 static void sp_namedview_remove_child(SPObject *object, Inkscape::XML::Node *child)
588 {
589 SPNamedView *nv = (SPNamedView *) object;
591 GSList **ref = &nv->guides;
592 for ( GSList *iter = nv->guides ; iter ; iter = iter->next ) {
593 if ( SP_OBJECT_REPR((SPObject *)iter->data) == child ) {
594 *ref = iter->next;
595 iter->next = NULL;
596 g_slist_free_1(iter);
597 break;
598 }
599 ref = &iter->next;
600 }
602 if (((SPObjectClass *) (parent_class))->remove_child) {
603 (* ((SPObjectClass *) (parent_class))->remove_child)(object, child);
604 }
605 }
607 static Inkscape::XML::Node *sp_namedview_write(SPObject *object, Inkscape::XML::Node *repr, guint flags)
608 {
609 if ( ( flags & SP_OBJECT_WRITE_EXT ) &&
610 repr != SP_OBJECT_REPR(object) )
611 {
612 if (repr) {
613 repr->mergeFrom(SP_OBJECT_REPR(object), "id");
614 } else {
615 repr = SP_OBJECT_REPR(object)->duplicate();
616 }
617 }
619 return repr;
620 }
622 void SPNamedView::show(SPDesktop *desktop)
623 {
624 for (GSList *l = guides; l != NULL; l = l->next) {
625 sp_guide_show(SP_GUIDE(l->data), desktop->guides, (GCallback) sp_dt_guide_event);
626 if (desktop->guides_active) {
627 sp_guide_sensitize(SP_GUIDE(l->data), sp_desktop_canvas(desktop), TRUE);
628 }
629 if (showguides) {
630 for (GSList *v = SP_GUIDE(l->data)->views; v != NULL; v = v->next) {
631 sp_canvas_item_show(SP_CANVAS_ITEM(v->data));
632 }
633 } else {
634 for (GSList *v = SP_GUIDE(l->data)->views; v != NULL; v = v->next) {
635 sp_canvas_item_hide(SP_CANVAS_ITEM(v->data));
636 }
637 }
638 }
640 views = g_slist_prepend(views, desktop);
642 SPCanvasItem * item = sp_canvas_item_new(sp_desktop_grid(desktop), SP_TYPE_CGRID, NULL);
643 // since we're keeping a copy, we need to bump up the ref count
644 gtk_object_ref(GTK_OBJECT(item));
645 gridviews = g_slist_prepend(gridviews, item);
647 item = sp_canvas_item_new(sp_desktop_grid(desktop), SP_TYPE_CAXONOMGRID, NULL);
648 // since we're keeping a copy, we need to bump up the ref count
649 gtk_object_ref(GTK_OBJECT(item));
650 gridviews = g_slist_prepend(gridviews, item);
652 sp_namedview_setup_grid(this);
653 }
655 /*
656 * Restores window geometry from the document settings
657 */
658 void sp_namedview_window_from_document(SPDesktop *desktop)
659 {
660 SPNamedView *nv = desktop->namedview;
661 gint save_geometry = prefs_get_int_attribute("options.savewindowgeometry", "value", 0);
663 // restore window size and position
664 if (save_geometry) {
665 if (nv->window_width != -1 && nv->window_height != -1)
666 desktop->setWindowSize(nv->window_width, nv->window_height);
667 if (nv->window_x != -1 && nv->window_y != -1)
668 desktop->setWindowPosition(NR::Point(nv->window_x, nv->window_y));
669 }
671 // restore zoom and view
672 if (nv->zoom != 0 && nv->zoom != HUGE_VAL && !isNaN(nv->zoom)
673 && nv->cx != HUGE_VAL && !isNaN(nv->cx)
674 && nv->cy != HUGE_VAL && !isNaN(nv->cy)) {
675 desktop->zoom_absolute(nv->cx, nv->cy, nv->zoom);
676 } else if (sp_desktop_document(desktop)) { // document without saved zoom, zoom to its page
677 desktop->zoom_page();
678 }
680 // cancel any history of zooms up to this point
681 if (desktop->zooms_past) {
682 g_list_free(desktop->zooms_past);
683 desktop->zooms_past = NULL;
684 }
686 SPObject *layer = NULL;
687 SPDocument *document = desktop->doc();
688 if ( nv->default_layer_id != 0 ) {
689 layer = document->getObjectById(g_quark_to_string(nv->default_layer_id));
690 }
691 // don't use that object if it's not at least group
692 if ( !layer || !SP_IS_GROUP(layer) ) {
693 layer = NULL;
694 }
695 // if that didn't work out, look for the topmost layer
696 if (!layer) {
697 SPObject *iter = sp_object_first_child(SP_DOCUMENT_ROOT(document));
698 for ( ; iter ; iter = SP_OBJECT_NEXT(iter) ) {
699 if (desktop->isLayer(iter)) {
700 layer = iter;
701 }
702 }
703 }
704 if (layer) {
705 desktop->setCurrentLayer(layer);
706 }
708 // FIXME: find a better place to do this
709 desktop->event_log->updateUndoVerbs();
710 }
712 void sp_namedview_document_from_window(SPDesktop *desktop)
713 {
714 gint save_geometry = prefs_get_int_attribute("options.savewindowgeometry", "value", 0);
715 Inkscape::XML::Node *view = SP_OBJECT_REPR(desktop->namedview);
716 NR::Rect const r = desktop->get_display_area();
718 // saving window geometry is not undoable
719 bool saved = sp_document_get_undo_sensitive(sp_desktop_document(desktop));
720 sp_document_set_undo_sensitive(sp_desktop_document(desktop), false);
722 sp_repr_set_svg_double(view, "inkscape:zoom", desktop->current_zoom());
723 sp_repr_set_svg_double(view, "inkscape:cx", r.midpoint()[NR::X]);
724 sp_repr_set_svg_double(view, "inkscape:cy", r.midpoint()[NR::Y]);
726 if (save_geometry) {
727 gint w, h, x, y;
728 desktop->getWindowGeometry(x, y, w, h);
729 sp_repr_set_int(view, "inkscape:window-width", w);
730 sp_repr_set_int(view, "inkscape:window-height", h);
731 sp_repr_set_int(view, "inkscape:window-x", x);
732 sp_repr_set_int(view, "inkscape:window-y", y);
733 }
735 view->setAttribute("inkscape:current-layer", SP_OBJECT_ID(desktop->currentLayer()));
737 // restore undoability
738 sp_document_set_undo_sensitive(sp_desktop_document(desktop), saved);
739 }
741 void SPNamedView::hide(SPDesktop const *desktop)
742 {
743 g_assert(desktop != NULL);
744 g_assert(g_slist_find(views, desktop));
746 for (GSList *l = guides; l != NULL; l = l->next) {
747 sp_guide_hide(SP_GUIDE(l->data), sp_desktop_canvas(desktop));
748 }
750 views = g_slist_remove(views, desktop);
752 GSList *l;
753 for (l = gridviews; l != NULL; l = l->next) {
754 if (SP_CANVAS_ITEM(l->data)->canvas == sp_desktop_canvas(desktop)) {
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 }
759 }
760 }
762 void SPNamedView::activateGuides(gpointer desktop, gboolean active)
763 {
764 g_assert(desktop != NULL);
765 g_assert(g_slist_find(views, desktop));
767 SPDesktop *dt = static_cast<SPDesktop*>(desktop);
769 for (GSList *l = guides; l != NULL; l = l->next) {
770 sp_guide_sensitize(SP_GUIDE(l->data), sp_desktop_canvas(dt), active);
771 }
772 }
774 static void sp_namedview_setup_guides(SPNamedView *nv)
775 {
776 for (GSList *l = nv->guides; l != NULL; l = l->next) {
777 if (nv->showguides) {
778 for (GSList *v = SP_GUIDE(l->data)->views; v != NULL; v = v->next) {
779 sp_canvas_item_show(SP_CANVAS_ITEM(v->data));
780 }
781 } else {
782 for (GSList *v = SP_GUIDE(l->data)->views; v != NULL; v = v->next) {
783 sp_canvas_item_hide(SP_CANVAS_ITEM(v->data));
784 }
785 }
786 }
787 }
789 void sp_namedview_toggle_guides(SPDocument *doc, Inkscape::XML::Node *repr)
790 {
791 unsigned int v;
792 unsigned int set = sp_repr_get_boolean(repr, "showguides", &v);
793 if (!set) { // hide guides if not specified, for backwards compatibility
794 v = FALSE;
795 } else {
796 v = !v;
797 }
799 bool saved = sp_document_get_undo_sensitive(doc);
800 sp_document_set_undo_sensitive(doc, false);
802 sp_repr_set_boolean(repr, "showguides", v);
804 doc->rroot->setAttribute("sodipodi:modified", "true");
805 sp_document_set_undo_sensitive(doc, saved);
806 }
808 void sp_namedview_toggle_grid(SPDocument *doc, Inkscape::XML::Node *repr)
809 {
810 unsigned int v;
811 sp_repr_get_boolean(repr, "showgrid", &v);
812 v = !v;
814 bool saved = sp_document_get_undo_sensitive(doc);
815 sp_document_set_undo_sensitive(doc, false);
817 sp_repr_set_boolean(repr, "showgrid", v);
819 doc->rroot->setAttribute("sodipodi:modified", "true");
820 sp_document_set_undo_sensitive(doc, saved);
821 }
823 void sp_namedview_set_gridtype(bool type, SPDocument *doc, Inkscape::XML::Node *repr)
824 {
825 bool saved = sp_document_get_undo_sensitive(doc);
826 sp_document_set_undo_sensitive(doc, false);
828 sp_repr_set_boolean(repr, "showgrid", type);
830 doc->rroot->setAttribute("sodipodi:modified", "true");
831 sp_document_set_undo_sensitive(doc, saved);
832 }
834 static void sp_namedview_setup_grid(SPNamedView *nv)
835 {
836 for (GSList *l = nv->gridviews; l != NULL; l = l->next) {
837 sp_namedview_setup_grid_item(nv, SP_CANVAS_ITEM(l->data));
838 }
839 }
841 static void sp_namedview_setup_grid_item(SPNamedView *nv, SPCanvasItem *item)
842 {
843 bool btype = SP_IS_CAXONOMGRID(GTK_OBJECT(item));
845 if ( nv->showgrid && (nv->gridtype == btype) ) {
846 sp_canvas_item_show(item);
847 } else {
848 sp_canvas_item_hide(item);
849 }
851 if (!btype){
852 // CGRID
853 sp_canvas_item_set((GtkObject *) item,
854 "color", nv->gridcolor,
855 "originx", nv->gridorigin[NR::X],
856 "originy", nv->gridorigin[NR::Y],
857 "spacingx", nv->gridspacing[NR::X],
858 "spacingy", nv->gridspacing[NR::Y],
859 "empcolor", nv->gridempcolor,
860 "empspacing", nv->gridempspacing,
861 NULL);
862 } else {
863 // CAXONOMGRID
864 sp_canvas_item_set((GtkObject *) item,
865 "color", nv->gridcolor,
866 "originx", nv->gridorigin[NR::X],
867 "originy", nv->gridorigin[NR::Y],
868 "spacingy", nv->gridspacing[NR::Y],
869 "anglex", nv->gridangle[0],
870 "anglez", nv->gridangle[1],
871 "empcolor", nv->gridempcolor,
872 "empspacing", nv->gridempspacing,
873 NULL);
874 }
875 }
878 gchar const *SPNamedView::getName() const
879 {
880 SPException ex;
881 SP_EXCEPTION_INIT(&ex);
882 return sp_object_getAttribute(SP_OBJECT(this), "id", &ex);
883 }
885 guint SPNamedView::getViewCount()
886 {
887 return ++viewcount;
888 }
890 GSList const *SPNamedView::getViewList() const
891 {
892 return views;
893 }
895 /* This should be moved somewhere */
897 static gboolean sp_str_to_bool(const gchar *str)
898 {
899 if (str) {
900 if (!g_strcasecmp(str, "true") ||
901 !g_strcasecmp(str, "yes") ||
902 !g_strcasecmp(str, "y") ||
903 (atoi(str) != 0)) {
904 return TRUE;
905 }
906 }
908 return FALSE;
909 }
911 /* fixme: Collect all these length parsing methods and think common sane API */
913 static gboolean sp_nv_read_length(const gchar *str, guint base, gdouble *val, const SPUnit **unit)
914 {
915 if (!str) {
916 return FALSE;
917 }
919 gchar *u;
920 gdouble v = g_ascii_strtod(str, &u);
921 if (!u) {
922 return FALSE;
923 }
924 while (isspace(*u)) {
925 u += 1;
926 }
928 if (!*u) {
929 /* No unit specified - keep default */
930 *val = v;
931 return TRUE;
932 }
934 if (base & SP_UNIT_DEVICE) {
935 if (u[0] && u[1] && !isalnum(u[2]) && !strncmp(u, "px", 2)) {
936 *unit = &sp_unit_get_by_id(SP_UNIT_PX);
937 *val = v;
938 return TRUE;
939 }
940 }
942 if (base & SP_UNIT_ABSOLUTE) {
943 if (!strncmp(u, "pt", 2)) {
944 *unit = &sp_unit_get_by_id(SP_UNIT_PT);
945 } else if (!strncmp(u, "mm", 2)) {
946 *unit = &sp_unit_get_by_id(SP_UNIT_MM);
947 } else if (!strncmp(u, "cm", 2)) {
948 *unit = &sp_unit_get_by_id(SP_UNIT_CM);
949 } else if (!strncmp(u, "m", 1)) {
950 *unit = &sp_unit_get_by_id(SP_UNIT_M);
951 } else if (!strncmp(u, "in", 2)) {
952 *unit = &sp_unit_get_by_id(SP_UNIT_IN);
953 } else {
954 return FALSE;
955 }
956 *val = v;
957 return TRUE;
958 }
960 return FALSE;
961 }
963 static gboolean sp_nv_read_opacity(const gchar *str, guint32 *color)
964 {
965 if (!str) {
966 return FALSE;
967 }
969 gchar *u;
970 gdouble v = strtod(str, &u);
971 if (!u) {
972 return FALSE;
973 }
974 v = CLAMP(v, 0.0, 1.0);
976 *color = (*color & 0xffffff00) | (guint32) floor(v * 255.9999);
978 return TRUE;
979 }
981 SPNamedView *sp_document_namedview(SPDocument *document, const gchar *id)
982 {
983 g_return_val_if_fail(document != NULL, NULL);
985 SPObject *nv = sp_item_group_get_child_by_name((SPGroup *) document->root, NULL, "sodipodi:namedview");
986 g_assert(nv != NULL);
988 if (id == NULL) {
989 return (SPNamedView *) nv;
990 }
992 while (nv && strcmp(nv->id, id)) {
993 nv = sp_item_group_get_child_by_name((SPGroup *) document->root, nv, "sodipodi:namedview");
994 }
996 return (SPNamedView *) nv;
997 }
999 /**
1000 * Returns namedview's default metric.
1001 */
1002 SPMetric SPNamedView::getDefaultMetric() const
1003 {
1004 if (doc_units) {
1005 return sp_unit_get_metric(doc_units);
1006 } else {
1007 return SP_PT;
1008 }
1009 }
1011 /*
1012 Local Variables:
1013 mode:c++
1014 c-file-style:"stroustrup"
1015 c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
1016 indent-tabs-mode:nil
1017 fill-column:99
1018 End:
1019 */
1020 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4 :