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 "helper/units.h"
21 #include "svg/svg-color.h"
22 #include "xml/repr.h"
23 #include "attributes.h"
24 #include "document.h"
25 #include "desktop-events.h"
26 #include "desktop-handles.h"
27 #include "event-log.h"
28 #include "sp-guide.h"
29 #include "sp-item-group.h"
30 #include "sp-namedview.h"
31 #include "prefs-utils.h"
32 #include "desktop.h"
33 #include "conn-avoid-ref.h" // for defaultConnSpacing.
35 #include "isnan.h" //temp fix for isnan(). include last
37 #define DEFAULTTOLERANCE 0.4
38 #define DEFAULTGRIDCOLOR 0x3f3fff25
39 #define DEFAULTGRIDEMPCOLOR 0x3f3fff60
40 #define DEFAULTGRIDEMPSPACING 5
41 #define DEFAULTGUIDECOLOR 0x0000ff7f
42 #define DEFAULTGUIDEHICOLOR 0xff00007f
43 #define DEFAULTBORDERCOLOR 0x000000ff
44 #define DEFAULTPAGECOLOR 0xffffff00
46 static void sp_namedview_class_init(SPNamedViewClass *klass);
47 static void sp_namedview_init(SPNamedView *namedview);
49 static void sp_namedview_build(SPObject *object, SPDocument *document, Inkscape::XML::Node *repr);
50 static void sp_namedview_release(SPObject *object);
51 static void sp_namedview_set(SPObject *object, unsigned int key, const gchar *value);
52 static void sp_namedview_child_added(SPObject *object, Inkscape::XML::Node *child, Inkscape::XML::Node *ref);
53 static void sp_namedview_remove_child(SPObject *object, Inkscape::XML::Node *child);
54 static Inkscape::XML::Node *sp_namedview_write(SPObject *object, Inkscape::XML::Node *repr, guint flags);
56 static void sp_namedview_setup_guides(SPNamedView * nv);
58 static void sp_namedview_setup_grid(SPNamedView * nv);
59 static void sp_namedview_setup_grid_item(SPNamedView * nv, SPCanvasItem * item);
61 static gboolean sp_str_to_bool(const gchar *str);
62 static gboolean sp_nv_read_length(const gchar *str, guint base, gdouble *val, const SPUnit **unit);
63 static gboolean sp_nv_read_opacity(const gchar *str, guint32 *color);
65 static SPObjectGroupClass * parent_class;
67 GType
68 sp_namedview_get_type()
69 {
70 static GType namedview_type = 0;
71 if (!namedview_type) {
72 GTypeInfo namedview_info = {
73 sizeof(SPNamedViewClass),
74 NULL, /* base_init */
75 NULL, /* base_finalize */
76 (GClassInitFunc) sp_namedview_class_init,
77 NULL, /* class_finalize */
78 NULL, /* class_data */
79 sizeof(SPNamedView),
80 16, /* n_preallocs */
81 (GInstanceInitFunc) sp_namedview_init,
82 NULL, /* value_table */
83 };
84 namedview_type = g_type_register_static(SP_TYPE_OBJECTGROUP, "SPNamedView", &namedview_info, (GTypeFlags)0);
85 }
86 return namedview_type;
87 }
89 static void sp_namedview_class_init(SPNamedViewClass * klass)
90 {
91 GObjectClass * gobject_class;
92 SPObjectClass * sp_object_class;
94 gobject_class = (GObjectClass *) klass;
95 sp_object_class = (SPObjectClass *) klass;
97 parent_class = (SPObjectGroupClass*) g_type_class_ref(SP_TYPE_OBJECTGROUP);
99 sp_object_class->build = sp_namedview_build;
100 sp_object_class->release = sp_namedview_release;
101 sp_object_class->set = sp_namedview_set;
102 sp_object_class->child_added = sp_namedview_child_added;
103 sp_object_class->remove_child = sp_namedview_remove_child;
104 sp_object_class->write = sp_namedview_write;
105 }
107 static void sp_namedview_init(SPNamedView *nv)
108 {
109 nv->editable = TRUE;
110 nv->showgrid = FALSE;
111 nv->showguides = TRUE;
112 nv->showborder = TRUE;
113 nv->showpageshadow = TRUE;
115 nv->guides = NULL;
116 nv->viewcount = 0;
117 nv->grids = NULL;
119 nv->default_layer_id = 0;
121 nv->connector_spacing = defaultConnSpacing;
123 new (&nv->snap_manager) SnapManager(nv);
124 }
126 static void sp_namedview_build(SPObject *object, SPDocument *document, Inkscape::XML::Node *repr)
127 {
128 SPNamedView *nv = (SPNamedView *) object;
129 SPObjectGroup *og = (SPObjectGroup *) object;
131 if (((SPObjectClass *) (parent_class))->build) {
132 (* ((SPObjectClass *) (parent_class))->build)(object, document, repr);
133 }
135 sp_object_read_attr(object, "inkscape:document-units");
136 sp_object_read_attr(object, "viewonly");
137 sp_object_read_attr(object, "showgrid");
138 sp_object_read_attr(object, "showguides");
139 sp_object_read_attr(object, "gridtolerance");
140 sp_object_read_attr(object, "guidetolerance");
141 sp_object_read_attr(object, "objecttolerance");
142 sp_object_read_attr(object, "gridoriginx");
143 sp_object_read_attr(object, "gridoriginy");
144 sp_object_read_attr(object, "gridspacingx");
145 sp_object_read_attr(object, "gridspacingy");
146 sp_object_read_attr(object, "gridempspacing");
147 sp_object_read_attr(object, "gridcolor");
148 sp_object_read_attr(object, "gridempcolor");
149 sp_object_read_attr(object, "gridopacity");
150 sp_object_read_attr(object, "gridempopacity");
151 sp_object_read_attr(object, "guidecolor");
152 sp_object_read_attr(object, "guideopacity");
153 sp_object_read_attr(object, "guidehicolor");
154 sp_object_read_attr(object, "guidehiopacity");
155 sp_object_read_attr(object, "showborder");
156 sp_object_read_attr(object, "inkscape:showpageshadow");
157 sp_object_read_attr(object, "borderlayer");
158 sp_object_read_attr(object, "bordercolor");
159 sp_object_read_attr(object, "borderopacity");
160 sp_object_read_attr(object, "pagecolor");
161 sp_object_read_attr(object, "inkscape:pageopacity");
162 sp_object_read_attr(object, "inkscape:pageshadow");
163 sp_object_read_attr(object, "inkscape:zoom");
164 sp_object_read_attr(object, "inkscape:cx");
165 sp_object_read_attr(object, "inkscape:cy");
166 sp_object_read_attr(object, "inkscape:window-width");
167 sp_object_read_attr(object, "inkscape:window-height");
168 sp_object_read_attr(object, "inkscape:window-x");
169 sp_object_read_attr(object, "inkscape:window-y");
170 /* sp_object_read_attr(object, "inkscape:grid-bbox");
171 sp_object_read_attr(object, "inkscape:guide-bbox");
172 sp_object_read_attr(object, "inkscape:object-bbox");
173 sp_object_read_attr(object, "inkscape:grid-points");
174 sp_object_read_attr(object, "inkscape:guide-points");
175 sp_object_read_attr(object, "inkscape:object-points");*/
176 sp_object_read_attr(object, "inkscape:object-paths");
177 sp_object_read_attr(object, "inkscape:object-nodes");
178 sp_object_read_attr(object, "inkscape:current-layer");
179 sp_object_read_attr(object, "inkscape:connector-spacing");
181 /* Construct guideline list */
183 for (SPObject *o = sp_object_first_child(SP_OBJECT(og)) ; o != NULL; o = SP_OBJECT_NEXT(o) ) {
184 if (SP_IS_GUIDE(o)) {
185 SPGuide * g = SP_GUIDE(o);
186 nv->guides = g_slist_prepend(nv->guides, g);
187 g_object_set(G_OBJECT(g), "color", nv->guidecolor, "hicolor", nv->guidehicolor, NULL);
188 }
189 }
190 }
192 static void sp_namedview_release(SPObject *object)
193 {
194 SPNamedView *namedview = (SPNamedView *) object;
196 if (namedview->guides) {
197 g_slist_free(namedview->guides);
198 namedview->guides = NULL;
199 }
201 while (namedview->gridviews) {
202 gtk_object_unref(GTK_OBJECT(namedview->gridviews->data));
203 namedview->gridviews = g_slist_remove(namedview->gridviews, namedview->gridviews->data);
204 }
206 // delete grids:
207 while ( namedview->grids ) {
208 Inkscape::CanvasGrid *gr = (Inkscape::CanvasGrid *)namedview->grids->data;
209 delete gr;
210 namedview->grids = g_slist_remove_link(namedview->grids, namedview->grids);
211 }
213 if (((SPObjectClass *) parent_class)->release) {
214 ((SPObjectClass *) parent_class)->release(object);
215 }
217 namedview->snap_manager.~SnapManager();
218 }
220 static void sp_namedview_set(SPObject *object, unsigned int key, const gchar *value)
221 {
222 SPNamedView *nv = SP_NAMEDVIEW(object);
223 SPUnit const &px = sp_unit_get_by_id(SP_UNIT_PX);
225 switch (key) {
226 case SP_ATTR_VIEWONLY:
227 nv->editable = (!value);
228 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
229 break;
230 case SP_ATTR_SHOWGRID:
231 nv->showgrid = sp_str_to_bool(value);
232 sp_namedview_setup_grid(nv);
233 /* Disable grid snaps if the grid is turned off */
234 nv->snap_manager.grid.setEnabled(nv->showgrid);
235 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
236 break;
237 case SP_ATTR_SHOWGUIDES:
238 if (!value) { // show guides if not specified, for backwards compatibility
239 nv->showguides = TRUE;
240 } else {
241 nv->showguides = sp_str_to_bool(value);
242 }
243 sp_namedview_setup_guides(nv);
244 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
245 break;
246 case SP_ATTR_GRIDTOLERANCE:
247 nv->gridtoleranceunit = &px;
248 nv->gridtolerance = DEFAULTTOLERANCE;
249 if (value) {
250 sp_nv_read_length(value, SP_UNIT_ABSOLUTE | SP_UNIT_DEVICE, &nv->gridtolerance, &nv->gridtoleranceunit);
251 }
252 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
253 break;
254 case SP_ATTR_GUIDETOLERANCE:
255 nv->guidetoleranceunit = &px;
256 nv->guidetolerance = DEFAULTTOLERANCE;
257 if (value) {
258 sp_nv_read_length(value, SP_UNIT_ABSOLUTE | SP_UNIT_DEVICE, &nv->guidetolerance, &nv->guidetoleranceunit);
259 }
260 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
261 break;
262 case SP_ATTR_OBJECTTOLERANCE:
263 nv->objecttoleranceunit = &px;
264 nv->objecttolerance = DEFAULTTOLERANCE;
265 if (value) {
266 sp_nv_read_length(value, SP_UNIT_ABSOLUTE | SP_UNIT_DEVICE, &nv->objecttolerance, &nv->objecttoleranceunit);
267 }
268 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
269 break;
270 case SP_ATTR_GRIDORIGINX:
271 case SP_ATTR_GRIDORIGINY:
272 {
273 unsigned const d = (key == SP_ATTR_GRIDORIGINY);
274 nv->gridunit = nv->doc_units;
275 nv->gridorigin[d] = 0.0;
276 if (value) {
277 sp_nv_read_length(value, SP_UNIT_ABSOLUTE | SP_UNIT_DEVICE, &nv->gridorigin[d], &nv->gridunit);
278 }
279 nv->gridorigin[d] = sp_units_get_pixels(nv->gridorigin[d], *(nv->gridunit));
280 sp_namedview_setup_grid(nv);
281 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
282 break;
283 }
284 case SP_ATTR_GRIDSPACINGX:
285 case SP_ATTR_GRIDSPACINGY:
286 {
287 unsigned const d = (key == SP_ATTR_GRIDSPACINGY);
288 nv->gridunit = nv->doc_units;
289 nv->gridspacing[d] = 1.0;
290 if (value) {
291 sp_nv_read_length(value, SP_UNIT_ABSOLUTE | SP_UNIT_DEVICE, &nv->gridspacing[d], &nv->gridunit);
292 }
293 nv->gridspacing[d] = sp_units_get_pixels(nv->gridspacing[d], *(nv->gridunit));
294 sp_namedview_setup_grid(nv);
295 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
296 break;
297 }
298 case SP_ATTR_GRIDCOLOR:
299 nv->gridcolor = (nv->gridcolor & 0xff) | (DEFAULTGRIDCOLOR & 0xffffff00);
300 if (value) {
301 nv->gridcolor = (nv->gridcolor & 0xff) | sp_svg_read_color(value, nv->gridcolor);
302 }
303 sp_namedview_setup_grid(nv);
304 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
305 break;
306 case SP_ATTR_GRIDEMPCOLOR:
307 nv->gridempcolor = (nv->gridempcolor & 0xff) | (DEFAULTGRIDEMPCOLOR & 0xffffff00);
308 if (value) {
309 nv->gridempcolor = (nv->gridempcolor & 0xff) | sp_svg_read_color(value, nv->gridempcolor);
310 }
311 sp_namedview_setup_grid(nv);
312 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
313 break;
314 case SP_ATTR_GRIDOPACITY:
315 nv->gridcolor = (nv->gridcolor & 0xffffff00) | (DEFAULTGRIDCOLOR & 0xff);
316 sp_nv_read_opacity(value, &nv->gridcolor);
317 sp_namedview_setup_grid(nv);
318 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
319 break;
320 case SP_ATTR_GRIDEMPOPACITY:
321 nv->gridempcolor = (nv->gridempcolor & 0xffffff00) | (DEFAULTGRIDEMPCOLOR & 0xff);
322 sp_nv_read_opacity(value, &nv->gridempcolor);
323 sp_namedview_setup_grid(nv);
324 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
325 break;
326 case SP_ATTR_GRIDEMPSPACING:
327 nv->gridempspacing = DEFAULTGRIDEMPSPACING;
328 if (value != NULL)
329 nv->gridempspacing = atoi(value);
330 sp_namedview_setup_grid(nv);
331 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
332 break;
333 case SP_ATTR_GUIDECOLOR:
334 nv->guidecolor = (nv->guidecolor & 0xff) | (DEFAULTGUIDECOLOR & 0xffffff00);
335 if (value) {
336 nv->guidecolor = (nv->guidecolor & 0xff) | sp_svg_read_color(value, nv->guidecolor);
337 }
338 for (GSList *l = nv->guides; l != NULL; l = l->next) {
339 g_object_set(G_OBJECT(l->data), "color", nv->guidecolor, NULL);
340 }
341 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
342 break;
343 case SP_ATTR_GUIDEOPACITY:
344 nv->guidecolor = (nv->guidecolor & 0xffffff00) | (DEFAULTGUIDECOLOR & 0xff);
345 sp_nv_read_opacity(value, &nv->guidecolor);
346 for (GSList *l = nv->guides; l != NULL; l = l->next) {
347 g_object_set(G_OBJECT(l->data), "color", nv->guidecolor, NULL);
348 }
349 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
350 break;
351 case SP_ATTR_GUIDEHICOLOR:
352 nv->guidehicolor = (nv->guidehicolor & 0xff) | (DEFAULTGUIDEHICOLOR & 0xffffff00);
353 if (value) {
354 nv->guidehicolor = (nv->guidehicolor & 0xff) | sp_svg_read_color(value, nv->guidehicolor);
355 }
356 for (GSList *l = nv->guides; l != NULL; l = l->next) {
357 g_object_set(G_OBJECT(l->data), "hicolor", nv->guidehicolor, NULL);
358 }
359 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
360 break;
361 case SP_ATTR_GUIDEHIOPACITY:
362 nv->guidehicolor = (nv->guidehicolor & 0xffffff00) | (DEFAULTGUIDEHICOLOR & 0xff);
363 sp_nv_read_opacity(value, &nv->guidehicolor);
364 for (GSList *l = nv->guides; l != NULL; l = l->next) {
365 g_object_set(G_OBJECT(l->data), "hicolor", nv->guidehicolor, NULL);
366 }
367 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
368 break;
369 case SP_ATTR_SHOWBORDER:
370 nv->showborder = (value) ? sp_str_to_bool (value) : TRUE;
371 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
372 break;
373 case SP_ATTR_BORDERLAYER:
374 nv->borderlayer = SP_BORDER_LAYER_BOTTOM;
375 if (value && !strcasecmp(value, "true")) nv->borderlayer = SP_BORDER_LAYER_TOP;
376 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
377 break;
378 case SP_ATTR_BORDERCOLOR:
379 nv->bordercolor = (nv->bordercolor & 0xff) | (DEFAULTBORDERCOLOR & 0xffffff00);
380 if (value) {
381 nv->bordercolor = (nv->bordercolor & 0xff) | sp_svg_read_color (value, nv->bordercolor);
382 }
383 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
384 break;
385 case SP_ATTR_BORDEROPACITY:
386 nv->bordercolor = (nv->bordercolor & 0xffffff00) | (DEFAULTBORDERCOLOR & 0xff);
387 sp_nv_read_opacity(value, &nv->bordercolor);
388 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
389 break;
390 case SP_ATTR_PAGECOLOR:
391 nv->pagecolor = (nv->pagecolor & 0xff) | (DEFAULTPAGECOLOR & 0xffffff00);
392 if (value) {
393 nv->pagecolor = (nv->pagecolor & 0xff) | sp_svg_read_color(value, nv->pagecolor);
394 }
395 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
396 break;
397 case SP_ATTR_INKSCAPE_PAGEOPACITY:
398 nv->pagecolor = (nv->pagecolor & 0xffffff00) | (DEFAULTPAGECOLOR & 0xff);
399 sp_nv_read_opacity(value, &nv->pagecolor);
400 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
401 break;
402 case SP_ATTR_INKSCAPE_PAGESHADOW:
403 nv->pageshadow = value? atoi(value) : 2; // 2 is the default
404 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
405 break;
406 case SP_ATTR_SHOWPAGESHADOW:
407 nv->showpageshadow = (value) ? sp_str_to_bool(value) : TRUE;
408 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
409 break;
410 case SP_ATTR_INKSCAPE_ZOOM:
411 nv->zoom = value ? g_ascii_strtod(value, NULL) : 0; // zero means not set
412 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
413 break;
414 case SP_ATTR_INKSCAPE_CX:
415 nv->cx = value ? g_ascii_strtod(value, NULL) : HUGE_VAL; // HUGE_VAL means not set
416 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
417 break;
418 case SP_ATTR_INKSCAPE_CY:
419 nv->cy = value ? g_ascii_strtod(value, NULL) : HUGE_VAL; // HUGE_VAL means not set
420 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
421 break;
422 case SP_ATTR_INKSCAPE_WINDOW_WIDTH:
423 nv->window_width = value? atoi(value) : -1; // -1 means not set
424 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
425 break;
426 case SP_ATTR_INKSCAPE_WINDOW_HEIGHT:
427 nv->window_height = value ? atoi(value) : -1; // -1 means not set
428 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
429 break;
430 case SP_ATTR_INKSCAPE_WINDOW_X:
431 nv->window_x = value ? atoi(value) : -1; // -1 means not set
432 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
433 break;
434 case SP_ATTR_INKSCAPE_WINDOW_Y:
435 nv->window_y = value ? atoi(value) : -1; // -1 means not set
436 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
437 break;
438 /* case SP_ATTR_INKSCAPE_GRID_BBOX:
439 nv->snap_manager.grid.setSnapTo(Inkscape::Snapper::BBOX_POINT, value ? sp_str_to_bool(value) : TRUE);
440 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
441 break;
442 case SP_ATTR_INKSCAPE_GRID_POINTS:
443 nv->snap_manager.grid.setSnapTo(Inkscape::Snapper::SNAP_POINT, value ? sp_str_to_bool(value) : FALSE);
444 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
445 break;
446 case SP_ATTR_INKSCAPE_GUIDE_BBOX:
447 nv->snap_manager.guide.setSnapTo(Inkscape::Snapper::BBOX_POINT, value ? sp_str_to_bool(value) : TRUE);
448 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
449 break;
450 case SP_ATTR_INKSCAPE_GUIDE_POINTS:
451 nv->snap_manager.guide.setSnapTo(Inkscape::Snapper::SNAP_POINT, value ? sp_str_to_bool(value) : FALSE);
452 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
453 break;
454 case SP_ATTR_INKSCAPE_OBJECT_BBOX:
455 nv->snap_manager.object.setSnapTo(Inkscape::Snapper::BBOX_POINT, (value) ? sp_str_to_bool(value) : FALSE);
456 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
457 break;
458 case SP_ATTR_INKSCAPE_OBJECT_POINTS:
459 nv->snap_manager.object.setSnapTo(Inkscape::Snapper::SNAP_POINT, (value) ? sp_str_to_bool(value) : FALSE);
460 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
461 break;
462 */
463 case SP_ATTR_INKSCAPE_OBJECT_PATHS:
464 nv->snap_manager.object.setSnapToPaths(value ? sp_str_to_bool(value) : TRUE);
465 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
466 break;
467 case SP_ATTR_INKSCAPE_OBJECT_NODES:
468 nv->snap_manager.object.setSnapToNodes(value ? sp_str_to_bool(value) : TRUE);
469 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
470 break;
471 case SP_ATTR_INKSCAPE_CURRENT_LAYER:
472 nv->default_layer_id = value ? g_quark_from_string(value) : 0;
473 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
474 break;
475 case SP_ATTR_INKSCAPE_CONNECTOR_SPACING:
476 nv->connector_spacing = value ? g_ascii_strtod(value, NULL) :
477 defaultConnSpacing;
478 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
479 break;
480 case SP_ATTR_INKSCAPE_DOCUMENT_UNITS: {
481 /* The default unit if the document doesn't override this: e.g. for files saved as
482 * `plain SVG', or non-inkscape files, or files created by an inkscape 0.40 &
483 * earlier.
484 *
485 * Here we choose `px': useful for screen-destined SVGs, and fewer bug reports
486 * about "not the same numbers as what's in the SVG file" (at least for documents
487 * without a viewBox attribute on the root <svg> element). Similarly, it's also
488 * the most reliable unit (i.e. least likely to be wrong in different viewing
489 * conditions) for viewBox-less SVG files given that it's the unit that inkscape
490 * uses for all coordinates.
491 *
492 * For documents that do have a viewBox attribute on the root <svg> element, it
493 * might be better if we used either viewBox coordinates or if we used the unit of
494 * say the width attribute of the root <svg> element. However, these pose problems
495 * in that they aren't in general absolute units as currently required by
496 * doc_units.
497 */
498 SPUnit const *new_unit = &sp_unit_get_by_id(SP_UNIT_PX);
500 if (value) {
501 SPUnit const *const req_unit = sp_unit_get_by_abbreviation(value);
502 if ( req_unit == NULL ) {
503 g_warning("Unrecognized unit `%s'", value);
504 /* fixme: Document errors should be reported in the status bar or
505 * the like (e.g. as per
506 * http://www.w3.org/TR/SVG11/implnote.html#ErrorProcessing); g_log
507 * should be only for programmer errors. */
508 } else if ( req_unit->base == SP_UNIT_ABSOLUTE ||
509 req_unit->base == SP_UNIT_DEVICE ) {
510 new_unit = req_unit;
511 } else {
512 g_warning("Document units must be absolute like `mm', `pt' or `px', but found `%s'",
513 value);
514 /* fixme: Don't use g_log (see above). */
515 }
516 }
517 nv->doc_units = new_unit;
518 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
519 break;
520 }
521 default:
522 if (((SPObjectClass *) (parent_class))->set) {
523 ((SPObjectClass *) (parent_class))->set(object, key, value);
524 }
525 break;
526 }
527 }
529 /**
530 * add a grid item from SVG-repr. Check if this namedview already has a gridobject for this one! If desktop=null, add grid-canvasitem to all desktops of this namedview,
531 * otherwise only add it to the specified desktop.
532 */
533 static Inkscape::CanvasGrid*
534 sp_namedview_add_grid(SPNamedView *nv, Inkscape::XML::Node *repr, SPDesktop *desktop) {
535 Inkscape::CanvasGrid* grid = NULL;
536 //check if namedview already has an object for this grid
537 for (GSList *l = nv->grids; l != NULL; l = l->next) {
538 Inkscape::CanvasGrid* g = (Inkscape::CanvasGrid*) l->data;
539 if (repr == g->repr) {
540 grid = g;
541 break;
542 }
543 }
545 if (!grid) {
546 //create grid object
547 const char * gridtype = repr->attribute("type");
548 if (!gridtype) {
549 gridtype = "xygrid"; // use this as default gridtype when none is specified
550 repr->setAttribute("type", gridtype);
551 }
552 grid = Inkscape::CanvasGrid::NewGrid(nv, repr, gridtype);
553 nv->grids = g_slist_append(nv->grids, grid);
554 }
556 if (!desktop) {
557 //add canvasitem to all desktops
558 for (GSList *l = nv->views; l != NULL; l = l->next) {
559 SPDesktop *dt = static_cast<SPDesktop*>(l->data);
560 grid->createCanvasItem(dt);
561 }
562 } else {
563 //add canvasitem only for specified desktop
564 grid->createCanvasItem(desktop);
565 }
567 return grid;
568 }
570 static void sp_namedview_child_added(SPObject *object, Inkscape::XML::Node *child, Inkscape::XML::Node *ref)
571 {
572 SPNamedView *nv = (SPNamedView *) object;
574 if (((SPObjectClass *) (parent_class))->child_added) {
575 (* ((SPObjectClass *) (parent_class))->child_added)(object, child, ref);
576 }
578 const gchar *id = child->attribute("id");
579 if (!strcmp(child->name(), "inkscape:grid")) {
580 sp_namedview_add_grid(nv, child, NULL);
581 } else {
582 SPObject *no = object->document->getObjectById(id);
583 g_assert(SP_IS_OBJECT(no));
585 if (SP_IS_GUIDE(no)) {
586 SPGuide *g = (SPGuide *) no;
587 nv->guides = g_slist_prepend(nv->guides, g);
588 g_object_set(G_OBJECT(g), "color", nv->guidecolor, "hicolor", nv->guidehicolor, NULL);
589 if (nv->editable) {
590 for (GSList *l = nv->views; l != NULL; l = l->next) {
591 sp_guide_show(g, static_cast<SPDesktop*>(l->data)->guides, (GCallback) sp_dt_guide_event);
592 if (static_cast<SPDesktop*>(l->data)->guides_active)
593 sp_guide_sensitize(g,
594 sp_desktop_canvas(static_cast<SPDesktop*> (l->data)),
595 TRUE);
596 if (nv->showguides) {
597 for (GSList *v = SP_GUIDE(g)->views; v != NULL; v = v->next) {
598 sp_canvas_item_show(SP_CANVAS_ITEM(v->data));
599 }
600 } else {
601 for (GSList *v = SP_GUIDE(g)->views; v != NULL; v = v->next) {
602 sp_canvas_item_hide(SP_CANVAS_ITEM(v->data));
603 }
604 }
605 }
606 }
607 }
608 }
609 }
611 static void sp_namedview_remove_child(SPObject *object, Inkscape::XML::Node *child)
612 {
613 SPNamedView *nv = (SPNamedView *) object;
615 if (!strcmp(child->name(), "inkscape:grid")) {
616 for ( GSList *iter = nv->grids ; iter ; iter = iter->next ) {
617 Inkscape::CanvasGrid *gr = (Inkscape::CanvasGrid *)iter->data;
618 if ( gr->repr == child ) {
619 delete gr;
620 nv->grids = g_slist_remove_link(nv->grids, iter);
621 break;
622 }
623 }
624 } else {
625 GSList **ref = &nv->guides;
626 for ( GSList *iter = nv->guides ; iter ; iter = iter->next ) {
627 if ( SP_OBJECT_REPR((SPObject *)iter->data) == child ) {
628 *ref = iter->next;
629 iter->next = NULL;
630 g_slist_free_1(iter);
631 break;
632 }
633 ref = &iter->next;
634 }
635 }
637 if (((SPObjectClass *) (parent_class))->remove_child) {
638 (* ((SPObjectClass *) (parent_class))->remove_child)(object, child);
639 }
640 }
642 static Inkscape::XML::Node *sp_namedview_write(SPObject *object, Inkscape::XML::Node *repr, guint flags)
643 {
644 if ( ( flags & SP_OBJECT_WRITE_EXT ) &&
645 repr != SP_OBJECT_REPR(object) )
646 {
647 if (repr) {
648 repr->mergeFrom(SP_OBJECT_REPR(object), "id");
649 } else {
650 /// \todo FIXME: Plumb an appropriate XML::Document into this
651 repr = SP_OBJECT_REPR(object)->duplicate(NULL);
652 }
653 }
655 return repr;
656 }
658 void SPNamedView::show(SPDesktop *desktop)
659 {
660 for (GSList *l = guides; l != NULL; l = l->next) {
661 sp_guide_show(SP_GUIDE(l->data), desktop->guides, (GCallback) sp_dt_guide_event);
662 if (desktop->guides_active) {
663 sp_guide_sensitize(SP_GUIDE(l->data), sp_desktop_canvas(desktop), TRUE);
664 }
665 if (showguides) {
666 for (GSList *v = SP_GUIDE(l->data)->views; v != NULL; v = v->next) {
667 sp_canvas_item_show(SP_CANVAS_ITEM(v->data));
668 }
669 } else {
670 for (GSList *v = SP_GUIDE(l->data)->views; v != NULL; v = v->next) {
671 sp_canvas_item_hide(SP_CANVAS_ITEM(v->data));
672 }
673 }
674 }
676 views = g_slist_prepend(views, desktop);
678 SPCanvasItem * item = sp_canvas_item_new(sp_desktop_gridgroup(desktop), INKSCAPE_TYPE_CXYGRID, NULL);
679 // since we're keeping a copy, we need to bump up the ref count
680 gtk_object_ref(GTK_OBJECT(item));
681 gridviews = g_slist_prepend(gridviews, item);
683 // generate grids specified in SVG:
684 Inkscape::XML::Node *repr = SP_OBJECT_REPR(this);
685 if (repr) {
686 for (Inkscape::XML::Node * child = repr->firstChild() ; child != NULL; child = child->next() ) {
687 if (!strcmp(child->name(), "inkscape:grid")) {
688 sp_namedview_add_grid(this, child, desktop);
689 }
690 }
691 }
693 sp_namedview_setup_grid(this);
694 }
696 #define MIN_ONSCREEN_DISTANCE 50
698 /*
699 * Restores window geometry from the document settings
700 */
701 void sp_namedview_window_from_document(SPDesktop *desktop)
702 {
703 SPNamedView *nv = desktop->namedview;
704 gint save_geometry = prefs_get_int_attribute("options.savewindowgeometry", "value", 0);
706 // restore window size and position
707 if (save_geometry) {
708 gint w = MIN(gdk_screen_width(), nv->window_width);
709 gint h = MIN(gdk_screen_height(), nv->window_height);
710 gint x = MIN(gdk_screen_width() - MIN_ONSCREEN_DISTANCE, nv->window_x);
711 gint y = MIN(gdk_screen_height() - MIN_ONSCREEN_DISTANCE, nv->window_y);
712 if (w>0 && h>0 && x>0 && y>0) {
713 x = MIN(gdk_screen_width() - w, x);
714 y = MIN(gdk_screen_height() - h, y);
715 }
716 if (w>0 && h>0)
717 desktop->setWindowSize(w, h);
718 if (x>0 && y>0)
719 desktop->setWindowPosition(NR::Point(x, y));
720 }
722 // restore zoom and view
723 if (nv->zoom != 0 && nv->zoom != HUGE_VAL && !isNaN(nv->zoom)
724 && nv->cx != HUGE_VAL && !isNaN(nv->cx)
725 && nv->cy != HUGE_VAL && !isNaN(nv->cy)) {
726 desktop->zoom_absolute(nv->cx, nv->cy, nv->zoom);
727 } else if (sp_desktop_document(desktop)) { // document without saved zoom, zoom to its page
728 desktop->zoom_page();
729 }
731 // cancel any history of zooms up to this point
732 if (desktop->zooms_past) {
733 g_list_free(desktop->zooms_past);
734 desktop->zooms_past = NULL;
735 }
736 }
738 void sp_namedview_update_layers_from_document (SPDesktop *desktop)
739 {
740 SPObject *layer = NULL;
741 SPDocument *document = desktop->doc();
742 SPNamedView *nv = desktop->namedview;
743 if ( nv->default_layer_id != 0 ) {
744 layer = document->getObjectById(g_quark_to_string(nv->default_layer_id));
745 }
746 // don't use that object if it's not at least group
747 if ( !layer || !SP_IS_GROUP(layer) ) {
748 layer = NULL;
749 }
750 // if that didn't work out, look for the topmost layer
751 if (!layer) {
752 SPObject *iter = sp_object_first_child(SP_DOCUMENT_ROOT(document));
753 for ( ; iter ; iter = SP_OBJECT_NEXT(iter) ) {
754 if (desktop->isLayer(iter)) {
755 layer = iter;
756 }
757 }
758 }
759 if (layer) {
760 desktop->setCurrentLayer(layer);
761 }
763 // FIXME: find a better place to do this
764 desktop->event_log->updateUndoVerbs();
765 }
767 void sp_namedview_document_from_window(SPDesktop *desktop)
768 {
769 gint save_geometry = prefs_get_int_attribute("options.savewindowgeometry", "value", 0);
770 Inkscape::XML::Node *view = SP_OBJECT_REPR(desktop->namedview);
771 NR::Rect const r = desktop->get_display_area();
773 // saving window geometry is not undoable
774 bool saved = sp_document_get_undo_sensitive(sp_desktop_document(desktop));
775 sp_document_set_undo_sensitive(sp_desktop_document(desktop), false);
777 sp_repr_set_svg_double(view, "inkscape:zoom", desktop->current_zoom());
778 sp_repr_set_svg_double(view, "inkscape:cx", r.midpoint()[NR::X]);
779 sp_repr_set_svg_double(view, "inkscape:cy", r.midpoint()[NR::Y]);
781 if (save_geometry) {
782 gint w, h, x, y;
783 desktop->getWindowGeometry(x, y, w, h);
784 sp_repr_set_int(view, "inkscape:window-width", w);
785 sp_repr_set_int(view, "inkscape:window-height", h);
786 sp_repr_set_int(view, "inkscape:window-x", x);
787 sp_repr_set_int(view, "inkscape:window-y", y);
788 }
790 view->setAttribute("inkscape:current-layer", SP_OBJECT_ID(desktop->currentLayer()));
792 // restore undoability
793 sp_document_set_undo_sensitive(sp_desktop_document(desktop), saved);
794 }
796 void SPNamedView::hide(SPDesktop const *desktop)
797 {
798 g_assert(desktop != NULL);
799 g_assert(g_slist_find(views, desktop));
801 for (GSList *l = guides; l != NULL; l = l->next) {
802 sp_guide_hide(SP_GUIDE(l->data), sp_desktop_canvas(desktop));
803 }
805 views = g_slist_remove(views, desktop);
807 GSList *l;
808 for (l = gridviews; l != NULL; l = l->next) {
809 if (! l->data) {
810 continue;
811 }
812 SPCanvasItem *item = static_cast<SPCanvasItem*>(l->data);
814 if (item->canvas == sp_desktop_canvas(desktop)) {
815 sp_canvas_item_hide(SP_CANVAS_ITEM(l->data));
816 gtk_object_unref(GTK_OBJECT(l->data));
817 gridviews = g_slist_remove(gridviews, l->data);
818 }
819 }
821 // delete grids:
822 while ( grids ) {
823 Inkscape::CanvasGrid *gr = (Inkscape::CanvasGrid *)grids->data;
824 delete gr;
825 grids = g_slist_remove_link(grids, grids);
826 }
827 }
829 void SPNamedView::activateGuides(gpointer desktop, gboolean active)
830 {
831 g_assert(desktop != NULL);
832 g_assert(g_slist_find(views, desktop));
834 SPDesktop *dt = static_cast<SPDesktop*>(desktop);
836 for (GSList *l = guides; l != NULL; l = l->next) {
837 sp_guide_sensitize(SP_GUIDE(l->data), sp_desktop_canvas(dt), active);
838 }
839 }
841 static void sp_namedview_setup_guides(SPNamedView *nv)
842 {
843 for (GSList *l = nv->guides; l != NULL; l = l->next) {
844 if (nv->showguides) {
845 for (GSList *v = SP_GUIDE(l->data)->views; v != NULL; v = v->next) {
846 sp_canvas_item_show(SP_CANVAS_ITEM(v->data));
847 }
848 } else {
849 for (GSList *v = SP_GUIDE(l->data)->views; v != NULL; v = v->next) {
850 sp_canvas_item_hide(SP_CANVAS_ITEM(v->data));
851 }
852 }
853 }
854 }
856 void sp_namedview_toggle_guides(SPDocument *doc, Inkscape::XML::Node *repr)
857 {
858 unsigned int v;
859 unsigned int set = sp_repr_get_boolean(repr, "showguides", &v);
860 if (!set) { // hide guides if not specified, for backwards compatibility
861 v = FALSE;
862 } else {
863 v = !v;
864 }
866 bool saved = sp_document_get_undo_sensitive(doc);
867 sp_document_set_undo_sensitive(doc, false);
869 sp_repr_set_boolean(repr, "showguides", v);
871 doc->rroot->setAttribute("sodipodi:modified", "true");
872 sp_document_set_undo_sensitive(doc, saved);
873 }
875 void sp_namedview_toggle_grid(SPDocument *doc, Inkscape::XML::Node *repr)
876 {
877 unsigned int v;
878 sp_repr_get_boolean(repr, "showgrid", &v);
879 v = !v;
881 bool saved = sp_document_get_undo_sensitive(doc);
882 sp_document_set_undo_sensitive(doc, false);
884 sp_repr_set_boolean(repr, "showgrid", v);
886 doc->rroot->setAttribute("sodipodi:modified", "true");
887 sp_document_set_undo_sensitive(doc, saved);
888 }
890 static void sp_namedview_setup_grid(SPNamedView *nv)
891 {
892 for (GSList *l = nv->gridviews; l != NULL; l = l->next) {
893 sp_namedview_setup_grid_item(nv, SP_CANVAS_ITEM(l->data));
894 }
895 }
897 static void sp_namedview_setup_grid_item(SPNamedView *nv, SPCanvasItem *item)
898 {
899 if ( nv->showgrid ) {
900 sp_canvas_item_show(item);
901 } else {
902 sp_canvas_item_hide(item);
903 }
905 sp_canvas_item_set((GtkObject *) item,
906 "color", nv->gridcolor,
907 "originx", nv->gridorigin[NR::X],
908 "originy", nv->gridorigin[NR::Y],
909 "spacingx", nv->gridspacing[NR::X],
910 "spacingy", nv->gridspacing[NR::Y],
911 "empcolor", nv->gridempcolor,
912 "empspacing", nv->gridempspacing,
913 NULL);
914 }
917 gchar const *SPNamedView::getName() const
918 {
919 SPException ex;
920 SP_EXCEPTION_INIT(&ex);
921 return sp_object_getAttribute(SP_OBJECT(this), "id", &ex);
922 }
924 guint SPNamedView::getViewCount()
925 {
926 return ++viewcount;
927 }
929 GSList const *SPNamedView::getViewList() const
930 {
931 return views;
932 }
934 /* This should be moved somewhere */
936 static gboolean sp_str_to_bool(const gchar *str)
937 {
938 if (str) {
939 if (!g_strcasecmp(str, "true") ||
940 !g_strcasecmp(str, "yes") ||
941 !g_strcasecmp(str, "y") ||
942 (atoi(str) != 0)) {
943 return TRUE;
944 }
945 }
947 return FALSE;
948 }
950 /* fixme: Collect all these length parsing methods and think common sane API */
952 static gboolean sp_nv_read_length(const gchar *str, guint base, gdouble *val, const SPUnit **unit)
953 {
954 if (!str) {
955 return FALSE;
956 }
958 gchar *u;
959 gdouble v = g_ascii_strtod(str, &u);
960 if (!u) {
961 return FALSE;
962 }
963 while (isspace(*u)) {
964 u += 1;
965 }
967 if (!*u) {
968 /* No unit specified - keep default */
969 *val = v;
970 return TRUE;
971 }
973 if (base & SP_UNIT_DEVICE) {
974 if (u[0] && u[1] && !isalnum(u[2]) && !strncmp(u, "px", 2)) {
975 *unit = &sp_unit_get_by_id(SP_UNIT_PX);
976 *val = v;
977 return TRUE;
978 }
979 }
981 if (base & SP_UNIT_ABSOLUTE) {
982 if (!strncmp(u, "pt", 2)) {
983 *unit = &sp_unit_get_by_id(SP_UNIT_PT);
984 } else if (!strncmp(u, "mm", 2)) {
985 *unit = &sp_unit_get_by_id(SP_UNIT_MM);
986 } else if (!strncmp(u, "cm", 2)) {
987 *unit = &sp_unit_get_by_id(SP_UNIT_CM);
988 } else if (!strncmp(u, "m", 1)) {
989 *unit = &sp_unit_get_by_id(SP_UNIT_M);
990 } else if (!strncmp(u, "in", 2)) {
991 *unit = &sp_unit_get_by_id(SP_UNIT_IN);
992 } else {
993 return FALSE;
994 }
995 *val = v;
996 return TRUE;
997 }
999 return FALSE;
1000 }
1002 static gboolean sp_nv_read_opacity(const gchar *str, guint32 *color)
1003 {
1004 if (!str) {
1005 return FALSE;
1006 }
1008 gchar *u;
1009 gdouble v = g_ascii_strtod(str, &u);
1010 if (!u) {
1011 return FALSE;
1012 }
1013 v = CLAMP(v, 0.0, 1.0);
1015 *color = (*color & 0xffffff00) | (guint32) floor(v * 255.9999);
1017 return TRUE;
1018 }
1020 SPNamedView *sp_document_namedview(SPDocument *document, const gchar *id)
1021 {
1022 g_return_val_if_fail(document != NULL, NULL);
1024 SPObject *nv = sp_item_group_get_child_by_name((SPGroup *) document->root, NULL, "sodipodi:namedview");
1025 g_assert(nv != NULL);
1027 if (id == NULL) {
1028 return (SPNamedView *) nv;
1029 }
1031 while (nv && strcmp(nv->id, id)) {
1032 nv = sp_item_group_get_child_by_name((SPGroup *) document->root, nv, "sodipodi:namedview");
1033 }
1035 return (SPNamedView *) nv;
1036 }
1038 /**
1039 * Returns namedview's default metric.
1040 */
1041 SPMetric SPNamedView::getDefaultMetric() const
1042 {
1043 if (doc_units) {
1044 return sp_unit_get_metric(doc_units);
1045 } else {
1046 return SP_PT;
1047 }
1048 }
1050 /*
1051 Local Variables:
1052 mode:c++
1053 c-file-style:"stroustrup"
1054 c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
1055 indent-tabs-mode:nil
1056 fill-column:99
1057 End:
1058 */
1059 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtab