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 gboolean sp_str_to_bool(const gchar *str);
59 static gboolean sp_nv_read_length(const gchar *str, guint base, gdouble *val, const SPUnit **unit);
60 static gboolean sp_nv_read_opacity(const gchar *str, guint32 *color);
62 static SPObjectGroupClass * parent_class;
64 GType
65 sp_namedview_get_type()
66 {
67 static GType namedview_type = 0;
68 if (!namedview_type) {
69 GTypeInfo namedview_info = {
70 sizeof(SPNamedViewClass),
71 NULL, /* base_init */
72 NULL, /* base_finalize */
73 (GClassInitFunc) sp_namedview_class_init,
74 NULL, /* class_finalize */
75 NULL, /* class_data */
76 sizeof(SPNamedView),
77 16, /* n_preallocs */
78 (GInstanceInitFunc) sp_namedview_init,
79 NULL, /* value_table */
80 };
81 namedview_type = g_type_register_static(SP_TYPE_OBJECTGROUP, "SPNamedView", &namedview_info, (GTypeFlags)0);
82 }
83 return namedview_type;
84 }
86 static void sp_namedview_class_init(SPNamedViewClass * klass)
87 {
88 GObjectClass * gobject_class;
89 SPObjectClass * sp_object_class;
91 gobject_class = (GObjectClass *) klass;
92 sp_object_class = (SPObjectClass *) klass;
94 parent_class = (SPObjectGroupClass*) g_type_class_ref(SP_TYPE_OBJECTGROUP);
96 sp_object_class->build = sp_namedview_build;
97 sp_object_class->release = sp_namedview_release;
98 sp_object_class->set = sp_namedview_set;
99 sp_object_class->child_added = sp_namedview_child_added;
100 sp_object_class->remove_child = sp_namedview_remove_child;
101 sp_object_class->write = sp_namedview_write;
102 }
104 static void sp_namedview_init(SPNamedView *nv)
105 {
106 nv->editable = TRUE;
107 nv->showguides = TRUE;
108 nv->grids_visible = false;
109 nv->showborder = TRUE;
110 nv->showpageshadow = TRUE;
112 nv->guides = NULL;
113 nv->viewcount = 0;
114 nv->grids = NULL;
116 nv->default_layer_id = 0;
118 nv->connector_spacing = defaultConnSpacing;
120 new (&nv->snap_manager) SnapManager(nv);
121 }
123 static void sp_namedview_generate_old_grid(SPNamedView * nv, SPDocument *document, Inkscape::XML::Node *repr) {
124 bool old_grid_settings_present = false;
126 // set old settings
127 const char* gridspacingx = "1px";
128 const char* gridspacingy = "1px";
129 const char* gridoriginy = "0px";
130 const char* gridoriginx = "0px";
131 const char* gridempspacing = "5";
132 const char* gridcolor = "#0000ff";
133 const char* gridempcolor = "#0000ff";
134 const char* gridopacity = "0.2";
135 const char* gridempopacity = "0.4";
137 const char* value = NULL;
138 if ((value = repr->attribute("gridoriginx"))) {
139 gridspacingx = value;
140 old_grid_settings_present = true;
141 }
142 if ((value = repr->attribute("gridoriginy"))) {
143 gridoriginy = value;
144 old_grid_settings_present = true;
145 }
146 if ((value = repr->attribute("gridspacingx"))) {
147 gridspacingx = value;
148 old_grid_settings_present = true;
149 }
150 if ((value = repr->attribute("gridspacingy"))) {
151 gridspacingy = value;
152 old_grid_settings_present = true;
153 }
154 if ((value = repr->attribute("gridcolor"))) {
155 gridcolor = value;
156 old_grid_settings_present = true;
157 }
158 if ((value = repr->attribute("gridempcolor"))) {
159 gridempcolor = value;
160 old_grid_settings_present = true;
161 }
162 if ((value = repr->attribute("gridempspacing"))) {
163 gridempspacing = value;
164 old_grid_settings_present = true;
165 }
166 if ((value = repr->attribute("gridopacity"))) {
167 gridopacity = value;
168 old_grid_settings_present = true;
169 }
170 if ((value = repr->attribute("gridempopacity"))) {
171 gridempopacity = value;
172 old_grid_settings_present = true;
173 }
175 if (old_grid_settings_present) {
176 // generate new xy grid with the correct settings
177 // first create the child xml node, then hook it to repr. This order is important, to not set off listeners to repr before the new node is complete.
179 Inkscape::XML::Document *xml_doc = sp_document_repr_doc(document);
180 Inkscape::XML::Node *newnode = xml_doc->createElement("inkscape:grid");
181 newnode->setAttribute("id", "GridFromPre046Settings");
182 newnode->setAttribute("type", Inkscape::CanvasGrid::getSVGName(Inkscape::GRID_RECTANGULAR));
183 newnode->setAttribute("originx", gridoriginx);
184 newnode->setAttribute("originy", gridoriginy);
185 newnode->setAttribute("spacingx", gridspacingx);
186 newnode->setAttribute("spacingy", gridspacingy);
187 newnode->setAttribute("color", gridcolor);
188 newnode->setAttribute("empcolor", gridempcolor);
189 newnode->setAttribute("opacity", gridopacity);
190 newnode->setAttribute("empopacity", gridempopacity);
191 newnode->setAttribute("empspacing", gridempspacing);
193 repr->appendChild(newnode);
194 Inkscape::GC::release(newnode);
196 // remove all old settings
197 repr->setAttribute("gridoriginx", NULL);
198 repr->setAttribute("gridoriginy", NULL);
199 repr->setAttribute("gridspacingx", NULL);
200 repr->setAttribute("gridspacingy", NULL);
201 repr->setAttribute("gridcolor", NULL);
202 repr->setAttribute("gridempcolor", NULL);
203 repr->setAttribute("gridopacity", NULL);
204 repr->setAttribute("gridempopacity", NULL);
205 repr->setAttribute("gridempspacing", NULL);
207 // sp_document_done(doc, SP_VERB_DIALOG_NAMEDVIEW, _("Create new grid from pre0.46 grid settings"));
208 }
209 }
211 static void sp_namedview_build(SPObject *object, SPDocument *document, Inkscape::XML::Node *repr)
212 {
213 SPNamedView *nv = (SPNamedView *) object;
214 SPObjectGroup *og = (SPObjectGroup *) object;
216 if (((SPObjectClass *) (parent_class))->build) {
217 (* ((SPObjectClass *) (parent_class))->build)(object, document, repr);
218 }
220 sp_object_read_attr(object, "inkscape:document-units");
221 sp_object_read_attr(object, "viewonly");
222 sp_object_read_attr(object, "showguides");
223 sp_object_read_attr(object, "showgrid");
224 sp_object_read_attr(object, "gridtolerance");
225 sp_object_read_attr(object, "guidetolerance");
226 sp_object_read_attr(object, "objecttolerance");
227 sp_object_read_attr(object, "guidecolor");
228 sp_object_read_attr(object, "guideopacity");
229 sp_object_read_attr(object, "guidehicolor");
230 sp_object_read_attr(object, "guidehiopacity");
231 sp_object_read_attr(object, "showborder");
232 sp_object_read_attr(object, "inkscape:showpageshadow");
233 sp_object_read_attr(object, "borderlayer");
234 sp_object_read_attr(object, "bordercolor");
235 sp_object_read_attr(object, "borderopacity");
236 sp_object_read_attr(object, "pagecolor");
237 sp_object_read_attr(object, "inkscape:pageopacity");
238 sp_object_read_attr(object, "inkscape:pageshadow");
239 sp_object_read_attr(object, "inkscape:zoom");
240 sp_object_read_attr(object, "inkscape:cx");
241 sp_object_read_attr(object, "inkscape:cy");
242 sp_object_read_attr(object, "inkscape:window-width");
243 sp_object_read_attr(object, "inkscape:window-height");
244 sp_object_read_attr(object, "inkscape:window-x");
245 sp_object_read_attr(object, "inkscape:window-y");
246 sp_object_read_attr(object, "inkscape:snap-global");
247 sp_object_read_attr(object, "inkscape:snap-bbox");
248 sp_object_read_attr(object, "inkscape:snap-nodes");
249 sp_object_read_attr(object, "inkscape:snap-guide");
250 sp_object_read_attr(object, "inkscape:snap-center");
251 sp_object_read_attr(object, "inkscape:snap-intersection-grid-guide");
252 sp_object_read_attr(object, "inkscape:snap-intersection-line-segments");
253 sp_object_read_attr(object, "inkscape:object-paths");
254 sp_object_read_attr(object, "inkscape:object-nodes");
255 sp_object_read_attr(object, "inkscape:bbox-paths");
256 sp_object_read_attr(object, "inkscape:bbox-nodes");
257 sp_object_read_attr(object, "inkscape:current-layer");
258 sp_object_read_attr(object, "inkscape:connector-spacing");
260 /* Construct guideline list */
261 for (SPObject *o = sp_object_first_child(SP_OBJECT(og)) ; o != NULL; o = SP_OBJECT_NEXT(o) ) {
262 if (SP_IS_GUIDE(o)) {
263 SPGuide * g = SP_GUIDE(o);
264 nv->guides = g_slist_prepend(nv->guides, g);
265 g_object_set(G_OBJECT(g), "color", nv->guidecolor, "hicolor", nv->guidehicolor, NULL);
266 }
267 }
269 // backwards compatibility with grid settings (pre 0.46)
270 sp_namedview_generate_old_grid(nv, document, repr);
271 }
273 static void sp_namedview_release(SPObject *object)
274 {
275 SPNamedView *namedview = (SPNamedView *) object;
277 if (namedview->guides) {
278 g_slist_free(namedview->guides);
279 namedview->guides = NULL;
280 }
282 // delete grids:
283 while ( namedview->grids ) {
284 Inkscape::CanvasGrid *gr = (Inkscape::CanvasGrid *)namedview->grids->data;
285 delete gr;
286 namedview->grids = g_slist_remove_link(namedview->grids, namedview->grids);
287 }
289 if (((SPObjectClass *) parent_class)->release) {
290 ((SPObjectClass *) parent_class)->release(object);
291 }
293 namedview->snap_manager.~SnapManager();
294 }
296 static void sp_namedview_set(SPObject *object, unsigned int key, const gchar *value)
297 {
298 SPNamedView *nv = SP_NAMEDVIEW(object);
299 SPUnit const &px = sp_unit_get_by_id(SP_UNIT_PX);
301 switch (key) {
302 case SP_ATTR_VIEWONLY:
303 nv->editable = (!value);
304 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
305 break;
306 case SP_ATTR_SHOWGUIDES:
307 if (!value) { // show guides if not specified, for backwards compatibility
308 nv->showguides = TRUE;
309 } else {
310 nv->showguides = sp_str_to_bool(value);
311 }
312 sp_namedview_setup_guides(nv);
313 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
314 break;
315 case SP_ATTR_SHOWGRIDS:
316 if (!value) { // don't show grids if not specified, for backwards compatibility
317 nv->grids_visible = false;
318 } else {
319 nv->grids_visible = sp_str_to_bool(value);
320 }
321 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
322 break;
323 case SP_ATTR_GRIDTOLERANCE:
324 nv->gridtoleranceunit = &px;
325 nv->gridtolerance = DEFAULTTOLERANCE;
326 if (value) {
327 sp_nv_read_length(value, SP_UNIT_ABSOLUTE | SP_UNIT_DEVICE, &nv->gridtolerance, &nv->gridtoleranceunit);
328 }
329 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
330 break;
331 case SP_ATTR_GUIDETOLERANCE:
332 nv->guidetoleranceunit = &px;
333 nv->guidetolerance = DEFAULTTOLERANCE;
334 if (value) {
335 sp_nv_read_length(value, SP_UNIT_ABSOLUTE | SP_UNIT_DEVICE, &nv->guidetolerance, &nv->guidetoleranceunit);
336 }
337 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
338 break;
339 case SP_ATTR_OBJECTTOLERANCE:
340 nv->objecttoleranceunit = &px;
341 nv->objecttolerance = DEFAULTTOLERANCE;
342 if (value) {
343 sp_nv_read_length(value, SP_UNIT_ABSOLUTE | SP_UNIT_DEVICE, &nv->objecttolerance, &nv->objecttoleranceunit);
344 }
345 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
346 break;
347 case SP_ATTR_GUIDECOLOR:
348 nv->guidecolor = (nv->guidecolor & 0xff) | (DEFAULTGUIDECOLOR & 0xffffff00);
349 if (value) {
350 nv->guidecolor = (nv->guidecolor & 0xff) | sp_svg_read_color(value, nv->guidecolor);
351 }
352 for (GSList *l = nv->guides; l != NULL; l = l->next) {
353 g_object_set(G_OBJECT(l->data), "color", nv->guidecolor, NULL);
354 }
355 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
356 break;
357 case SP_ATTR_GUIDEOPACITY:
358 nv->guidecolor = (nv->guidecolor & 0xffffff00) | (DEFAULTGUIDECOLOR & 0xff);
359 sp_nv_read_opacity(value, &nv->guidecolor);
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_GUIDEHICOLOR:
366 nv->guidehicolor = (nv->guidehicolor & 0xff) | (DEFAULTGUIDEHICOLOR & 0xffffff00);
367 if (value) {
368 nv->guidehicolor = (nv->guidehicolor & 0xff) | sp_svg_read_color(value, nv->guidehicolor);
369 }
370 for (GSList *l = nv->guides; l != NULL; l = l->next) {
371 g_object_set(G_OBJECT(l->data), "hicolor", nv->guidehicolor, NULL);
372 }
373 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
374 break;
375 case SP_ATTR_GUIDEHIOPACITY:
376 nv->guidehicolor = (nv->guidehicolor & 0xffffff00) | (DEFAULTGUIDEHICOLOR & 0xff);
377 sp_nv_read_opacity(value, &nv->guidehicolor);
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_SHOWBORDER:
384 nv->showborder = (value) ? sp_str_to_bool (value) : TRUE;
385 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
386 break;
387 case SP_ATTR_BORDERLAYER:
388 nv->borderlayer = SP_BORDER_LAYER_BOTTOM;
389 if (value && !strcasecmp(value, "true")) nv->borderlayer = SP_BORDER_LAYER_TOP;
390 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
391 break;
392 case SP_ATTR_BORDERCOLOR:
393 nv->bordercolor = (nv->bordercolor & 0xff) | (DEFAULTBORDERCOLOR & 0xffffff00);
394 if (value) {
395 nv->bordercolor = (nv->bordercolor & 0xff) | sp_svg_read_color (value, nv->bordercolor);
396 }
397 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
398 break;
399 case SP_ATTR_BORDEROPACITY:
400 nv->bordercolor = (nv->bordercolor & 0xffffff00) | (DEFAULTBORDERCOLOR & 0xff);
401 sp_nv_read_opacity(value, &nv->bordercolor);
402 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
403 break;
404 case SP_ATTR_PAGECOLOR:
405 nv->pagecolor = (nv->pagecolor & 0xff) | (DEFAULTPAGECOLOR & 0xffffff00);
406 if (value) {
407 nv->pagecolor = (nv->pagecolor & 0xff) | sp_svg_read_color(value, nv->pagecolor);
408 }
409 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
410 break;
411 case SP_ATTR_INKSCAPE_PAGEOPACITY:
412 nv->pagecolor = (nv->pagecolor & 0xffffff00) | (DEFAULTPAGECOLOR & 0xff);
413 sp_nv_read_opacity(value, &nv->pagecolor);
414 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
415 break;
416 case SP_ATTR_INKSCAPE_PAGESHADOW:
417 nv->pageshadow = value? atoi(value) : 2; // 2 is the default
418 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
419 break;
420 case SP_ATTR_SHOWPAGESHADOW:
421 nv->showpageshadow = (value) ? sp_str_to_bool(value) : TRUE;
422 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
423 break;
424 case SP_ATTR_INKSCAPE_ZOOM:
425 nv->zoom = value ? g_ascii_strtod(value, NULL) : 0; // zero means not set
426 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
427 break;
428 case SP_ATTR_INKSCAPE_CX:
429 nv->cx = value ? g_ascii_strtod(value, NULL) : HUGE_VAL; // HUGE_VAL means not set
430 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
431 break;
432 case SP_ATTR_INKSCAPE_CY:
433 nv->cy = value ? g_ascii_strtod(value, NULL) : HUGE_VAL; // HUGE_VAL means not set
434 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
435 break;
436 case SP_ATTR_INKSCAPE_WINDOW_WIDTH:
437 nv->window_width = value? atoi(value) : -1; // -1 means not set
438 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
439 break;
440 case SP_ATTR_INKSCAPE_WINDOW_HEIGHT:
441 nv->window_height = value ? atoi(value) : -1; // -1 means not set
442 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
443 break;
444 case SP_ATTR_INKSCAPE_WINDOW_X:
445 nv->window_x = value ? atoi(value) : -1; // -1 means not set
446 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
447 break;
448 case SP_ATTR_INKSCAPE_WINDOW_Y:
449 nv->window_y = value ? atoi(value) : -1; // -1 means not set
450 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
451 break;
452 case SP_ATTR_INKSCAPE_SNAP_GLOBAL:
453 nv->snap_manager.setSnapEnabledGlobally(value ? sp_str_to_bool(value) : TRUE);
454 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
455 break;
456 case SP_ATTR_INKSCAPE_SNAP_BBOX:
457 nv->snap_manager.setSnapModeBBox(value ? sp_str_to_bool(value) : FALSE);
458 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
459 break;
460 case SP_ATTR_INKSCAPE_SNAP_NODES:
461 nv->snap_manager.setSnapModeNode(value ? sp_str_to_bool(value) : TRUE);
462 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
463 break;
464 case SP_ATTR_INKSCAPE_SNAP_CENTER:
465 nv->snap_manager.setIncludeItemCenter(value ? sp_str_to_bool(value) : FALSE);
466 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
467 break;
468 case SP_ATTR_INKSCAPE_SNAP_GUIDE:
469 nv->snap_manager.setSnapModeGuide(value ? sp_str_to_bool(value) : FALSE);
470 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
471 break;
472 case SP_ATTR_INKSCAPE_SNAP_INTERS_GRIDGUIDE:
473 nv->snap_manager.setSnapIntersectionGG(value ? sp_str_to_bool(value) : TRUE);
474 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
475 break;
476 case SP_ATTR_INKSCAPE_SNAP_INTERS_LINESEGM:
477 nv->snap_manager.setSnapIntersectionLS(value ? sp_str_to_bool(value) : FALSE);
478 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
479 break;
480 case SP_ATTR_INKSCAPE_OBJECT_PATHS:
481 nv->snap_manager.object.setSnapToItemPath(value ? sp_str_to_bool(value) : FALSE);
482 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
483 break;
484 case SP_ATTR_INKSCAPE_OBJECT_NODES:
485 nv->snap_manager.object.setSnapToItemNode(value ? sp_str_to_bool(value) : FALSE);
486 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
487 break;
488 case SP_ATTR_INKSCAPE_BBOX_PATHS:
489 nv->snap_manager.object.setSnapToBBoxPath(value ? sp_str_to_bool(value) : FALSE);
490 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
491 break;
492 case SP_ATTR_INKSCAPE_BBOX_NODES:
493 nv->snap_manager.object.setSnapToBBoxNode(value ? sp_str_to_bool(value) : FALSE);
494 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
495 break;
496 case SP_ATTR_INKSCAPE_CURRENT_LAYER:
497 nv->default_layer_id = value ? g_quark_from_string(value) : 0;
498 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
499 break;
500 case SP_ATTR_INKSCAPE_CONNECTOR_SPACING:
501 nv->connector_spacing = value ? g_ascii_strtod(value, NULL) :
502 defaultConnSpacing;
503 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
504 break;
505 case SP_ATTR_INKSCAPE_DOCUMENT_UNITS: {
506 /* The default unit if the document doesn't override this: e.g. for files saved as
507 * `plain SVG', or non-inkscape files, or files created by an inkscape 0.40 &
508 * earlier.
509 *
510 * Here we choose `px': useful for screen-destined SVGs, and fewer bug reports
511 * about "not the same numbers as what's in the SVG file" (at least for documents
512 * without a viewBox attribute on the root <svg> element). Similarly, it's also
513 * the most reliable unit (i.e. least likely to be wrong in different viewing
514 * conditions) for viewBox-less SVG files given that it's the unit that inkscape
515 * uses for all coordinates.
516 *
517 * For documents that do have a viewBox attribute on the root <svg> element, it
518 * might be better if we used either viewBox coordinates or if we used the unit of
519 * say the width attribute of the root <svg> element. However, these pose problems
520 * in that they aren't in general absolute units as currently required by
521 * doc_units.
522 */
523 SPUnit const *new_unit = &sp_unit_get_by_id(SP_UNIT_PX);
525 if (value) {
526 SPUnit const *const req_unit = sp_unit_get_by_abbreviation(value);
527 if ( req_unit == NULL ) {
528 g_warning("Unrecognized unit `%s'", value);
529 /* fixme: Document errors should be reported in the status bar or
530 * the like (e.g. as per
531 * http://www.w3.org/TR/SVG11/implnote.html#ErrorProcessing); g_log
532 * should be only for programmer errors. */
533 } else if ( req_unit->base == SP_UNIT_ABSOLUTE ||
534 req_unit->base == SP_UNIT_DEVICE ) {
535 new_unit = req_unit;
536 } else {
537 g_warning("Document units must be absolute like `mm', `pt' or `px', but found `%s'",
538 value);
539 /* fixme: Don't use g_log (see above). */
540 }
541 }
542 nv->doc_units = new_unit;
543 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
544 break;
545 }
546 default:
547 if (((SPObjectClass *) (parent_class))->set) {
548 ((SPObjectClass *) (parent_class))->set(object, key, value);
549 }
550 break;
551 }
552 }
554 /**
555 * 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,
556 * otherwise only add it to the specified desktop.
557 */
558 static Inkscape::CanvasGrid*
559 sp_namedview_add_grid(SPNamedView *nv, Inkscape::XML::Node *repr, SPDesktop *desktop) {
560 Inkscape::CanvasGrid* grid = NULL;
561 //check if namedview already has an object for this grid
562 for (GSList *l = nv->grids; l != NULL; l = l->next) {
563 Inkscape::CanvasGrid* g = (Inkscape::CanvasGrid*) l->data;
564 if (repr == g->repr) {
565 grid = g;
566 break;
567 }
568 }
570 if (!grid) {
571 //create grid object
572 Inkscape::GridType gridtype = Inkscape::CanvasGrid::getGridTypeFromSVGName(repr->attribute("type"));
573 SPDocument *doc = NULL;
574 if (desktop)
575 doc = sp_desktop_document(desktop);
576 else
577 doc = sp_desktop_document(static_cast<SPDesktop*>(nv->views->data));
578 grid = Inkscape::CanvasGrid::NewGrid(nv, repr, doc, gridtype);
579 nv->grids = g_slist_append(nv->grids, grid);
580 //Initialize the snapping parameters for the new grid
581 bool enabled_node = nv->snap_manager.getSnapModeNode();
582 bool enabled_bbox = nv->snap_manager.getSnapModeBBox();
583 grid->snapper->setSnapFrom(Inkscape::Snapper::SNAPPOINT_NODE, enabled_node);
584 grid->snapper->setSnapFrom(Inkscape::Snapper::SNAPPOINT_BBOX, enabled_bbox);
585 }
587 if (!desktop) {
588 //add canvasitem to all desktops
589 for (GSList *l = nv->views; l != NULL; l = l->next) {
590 SPDesktop *dt = static_cast<SPDesktop*>(l->data);
591 grid->createCanvasItem(dt);
592 }
593 } else {
594 //add canvasitem only for specified desktop
595 grid->createCanvasItem(desktop);
596 }
598 return grid;
599 }
601 static void sp_namedview_child_added(SPObject *object, Inkscape::XML::Node *child, Inkscape::XML::Node *ref)
602 {
603 SPNamedView *nv = (SPNamedView *) object;
605 if (((SPObjectClass *) (parent_class))->child_added) {
606 (* ((SPObjectClass *) (parent_class))->child_added)(object, child, ref);
607 }
609 if (!strcmp(child->name(), "inkscape:grid")) {
610 sp_namedview_add_grid(nv, child, NULL);
611 } else {
612 SPObject *no = object->document->getObjectByRepr(child);
613 if ( !SP_IS_OBJECT(no) )
614 return;
616 if (SP_IS_GUIDE(no)) {
617 SPGuide *g = (SPGuide *) no;
618 nv->guides = g_slist_prepend(nv->guides, g);
619 g_object_set(G_OBJECT(g), "color", nv->guidecolor, "hicolor", nv->guidehicolor, NULL);
620 if (nv->editable) {
621 for (GSList *l = nv->views; l != NULL; l = l->next) {
622 sp_guide_show(g, static_cast<SPDesktop*>(l->data)->guides, (GCallback) sp_dt_guide_event);
623 if (static_cast<SPDesktop*>(l->data)->guides_active)
624 sp_guide_sensitize(g,
625 sp_desktop_canvas(static_cast<SPDesktop*> (l->data)),
626 TRUE);
627 if (nv->showguides) {
628 for (GSList *v = SP_GUIDE(g)->views; v != NULL; v = v->next) {
629 sp_canvas_item_show(SP_CANVAS_ITEM(v->data));
630 }
631 } else {
632 for (GSList *v = SP_GUIDE(g)->views; v != NULL; v = v->next) {
633 sp_canvas_item_hide(SP_CANVAS_ITEM(v->data));
634 }
635 }
636 }
637 }
638 }
639 }
640 }
642 static void sp_namedview_remove_child(SPObject *object, Inkscape::XML::Node *child)
643 {
644 SPNamedView *nv = (SPNamedView *) object;
646 if (!strcmp(child->name(), "inkscape:grid")) {
647 for ( GSList *iter = nv->grids ; iter ; iter = iter->next ) {
648 Inkscape::CanvasGrid *gr = (Inkscape::CanvasGrid *)iter->data;
649 if ( gr->repr == child ) {
650 delete gr;
651 nv->grids = g_slist_remove_link(nv->grids, iter);
652 break;
653 }
654 }
655 } else {
656 GSList **ref = &nv->guides;
657 for ( GSList *iter = nv->guides ; iter ; iter = iter->next ) {
658 if ( SP_OBJECT_REPR((SPObject *)iter->data) == child ) {
659 *ref = iter->next;
660 iter->next = NULL;
661 g_slist_free_1(iter);
662 break;
663 }
664 ref = &iter->next;
665 }
666 }
668 if (((SPObjectClass *) (parent_class))->remove_child) {
669 (* ((SPObjectClass *) (parent_class))->remove_child)(object, child);
670 }
671 }
673 static Inkscape::XML::Node *sp_namedview_write(SPObject *object, Inkscape::XML::Node *repr, guint flags)
674 {
675 if ( ( flags & SP_OBJECT_WRITE_EXT ) &&
676 repr != SP_OBJECT_REPR(object) )
677 {
678 if (repr) {
679 repr->mergeFrom(SP_OBJECT_REPR(object), "id");
680 } else {
681 /// \todo FIXME: Plumb an appropriate XML::Document into this
682 repr = SP_OBJECT_REPR(object)->duplicate(NULL);
683 }
684 }
686 return repr;
687 }
689 void SPNamedView::show(SPDesktop *desktop)
690 {
691 for (GSList *l = guides; l != NULL; l = l->next) {
692 sp_guide_show(SP_GUIDE(l->data), desktop->guides, (GCallback) sp_dt_guide_event);
693 if (desktop->guides_active) {
694 sp_guide_sensitize(SP_GUIDE(l->data), sp_desktop_canvas(desktop), TRUE);
695 }
696 if (showguides) {
697 for (GSList *v = SP_GUIDE(l->data)->views; v != NULL; v = v->next) {
698 sp_canvas_item_show(SP_CANVAS_ITEM(v->data));
699 }
700 } else {
701 for (GSList *v = SP_GUIDE(l->data)->views; v != NULL; v = v->next) {
702 sp_canvas_item_hide(SP_CANVAS_ITEM(v->data));
703 }
704 }
705 }
707 views = g_slist_prepend(views, desktop);
709 // generate grids specified in SVG:
710 Inkscape::XML::Node *repr = SP_OBJECT_REPR(this);
711 if (repr) {
712 for (Inkscape::XML::Node * child = repr->firstChild() ; child != NULL; child = child->next() ) {
713 if (!strcmp(child->name(), "inkscape:grid")) {
714 sp_namedview_add_grid(this, child, desktop);
715 }
716 }
717 }
719 desktop->showGrids(grids_visible, false);
720 }
722 #define MIN_ONSCREEN_DISTANCE 50
724 /*
725 * Restores window geometry from the document settings or defaults in prefs
726 */
727 void sp_namedview_window_from_document(SPDesktop *desktop)
728 {
729 SPNamedView *nv = desktop->namedview;
730 gint geometry_from_file =
731 (1==prefs_get_int_attribute("options.savewindowgeometry", "value", 0));
733 // restore window size and position stored with the document
734 if (geometry_from_file) {
735 gint w = MIN(gdk_screen_width(), nv->window_width);
736 gint h = MIN(gdk_screen_height(), nv->window_height);
737 gint x = MIN(gdk_screen_width() - MIN_ONSCREEN_DISTANCE, nv->window_x);
738 gint y = MIN(gdk_screen_height() - MIN_ONSCREEN_DISTANCE, nv->window_y);
739 if (w>0 && h>0 && x>0 && y>0) {
740 x = MIN(gdk_screen_width() - w, x);
741 y = MIN(gdk_screen_height() - h, y);
742 }
743 if (w>0 && h>0) {
744 desktop->setWindowSize(w, h);
745 }
746 if (x>0 && y>0) {
747 desktop->setWindowPosition(NR::Point(x, y));
748 }
749 }
751 // restore zoom and view
752 if (nv->zoom != 0 && nv->zoom != HUGE_VAL && !isNaN(nv->zoom)
753 && nv->cx != HUGE_VAL && !isNaN(nv->cx)
754 && nv->cy != HUGE_VAL && !isNaN(nv->cy)) {
755 desktop->zoom_absolute(nv->cx, nv->cy, nv->zoom);
756 } else if (sp_desktop_document(desktop)) { // document without saved zoom, zoom to its page
757 desktop->zoom_page();
758 }
760 // cancel any history of zooms up to this point
761 if (desktop->zooms_past) {
762 g_list_free(desktop->zooms_past);
763 desktop->zooms_past = NULL;
764 }
765 }
767 void sp_namedview_update_layers_from_document (SPDesktop *desktop)
768 {
769 SPObject *layer = NULL;
770 SPDocument *document = desktop->doc();
771 SPNamedView *nv = desktop->namedview;
772 if ( nv->default_layer_id != 0 ) {
773 layer = document->getObjectById(g_quark_to_string(nv->default_layer_id));
774 }
775 // don't use that object if it's not at least group
776 if ( !layer || !SP_IS_GROUP(layer) ) {
777 layer = NULL;
778 }
779 // if that didn't work out, look for the topmost layer
780 if (!layer) {
781 SPObject *iter = sp_object_first_child(SP_DOCUMENT_ROOT(document));
782 for ( ; iter ; iter = SP_OBJECT_NEXT(iter) ) {
783 if (desktop->isLayer(iter)) {
784 layer = iter;
785 }
786 }
787 }
788 if (layer) {
789 desktop->setCurrentLayer(layer);
790 }
792 // FIXME: find a better place to do this
793 desktop->event_log->updateUndoVerbs();
794 }
796 void sp_namedview_document_from_window(SPDesktop *desktop)
797 {
798 gint save_geometry_in_file =
799 (1==prefs_get_int_attribute("options.savewindowgeometry", "value", 0));
800 Inkscape::XML::Node *view = SP_OBJECT_REPR(desktop->namedview);
801 NR::Rect const r = desktop->get_display_area();
803 // saving window geometry is not undoable
804 bool saved = sp_document_get_undo_sensitive(sp_desktop_document(desktop));
805 sp_document_set_undo_sensitive(sp_desktop_document(desktop), false);
807 sp_repr_set_svg_double(view, "inkscape:zoom", desktop->current_zoom());
808 sp_repr_set_svg_double(view, "inkscape:cx", r.midpoint()[NR::X]);
809 sp_repr_set_svg_double(view, "inkscape:cy", r.midpoint()[NR::Y]);
811 if (save_geometry_in_file) {
812 gint w, h, x, y;
813 desktop->getWindowGeometry(x, y, w, h);
814 sp_repr_set_int(view, "inkscape:window-width", w);
815 sp_repr_set_int(view, "inkscape:window-height", h);
816 sp_repr_set_int(view, "inkscape:window-x", x);
817 sp_repr_set_int(view, "inkscape:window-y", y);
818 }
820 view->setAttribute("inkscape:current-layer", SP_OBJECT_ID(desktop->currentLayer()));
822 // restore undoability
823 sp_document_set_undo_sensitive(sp_desktop_document(desktop), saved);
824 }
826 void SPNamedView::hide(SPDesktop const *desktop)
827 {
828 g_assert(desktop != NULL);
829 g_assert(g_slist_find(views, desktop));
831 for (GSList *l = guides; l != NULL; l = l->next) {
832 sp_guide_hide(SP_GUIDE(l->data), sp_desktop_canvas(desktop));
833 }
835 views = g_slist_remove(views, desktop);
837 // delete grids:
838 while ( grids ) {
839 Inkscape::CanvasGrid *gr = (Inkscape::CanvasGrid *)grids->data;
840 delete gr;
841 grids = g_slist_remove_link(grids, grids);
842 }
843 }
845 void SPNamedView::activateGuides(gpointer desktop, gboolean active)
846 {
847 g_assert(desktop != NULL);
848 g_assert(g_slist_find(views, desktop));
850 SPDesktop *dt = static_cast<SPDesktop*>(desktop);
852 for (GSList *l = guides; l != NULL; l = l->next) {
853 sp_guide_sensitize(SP_GUIDE(l->data), sp_desktop_canvas(dt), active);
854 }
855 }
857 static void sp_namedview_setup_guides(SPNamedView *nv)
858 {
859 for (GSList *l = nv->guides; l != NULL; l = l->next) {
860 if (nv->showguides) {
861 for (GSList *v = SP_GUIDE(l->data)->views; v != NULL; v = v->next) {
862 sp_canvas_item_show(SP_CANVAS_ITEM(v->data));
863 }
864 } else {
865 for (GSList *v = SP_GUIDE(l->data)->views; v != NULL; v = v->next) {
866 sp_canvas_item_hide(SP_CANVAS_ITEM(v->data));
867 }
868 }
869 }
870 }
872 void sp_namedview_toggle_guides(SPDocument *doc, Inkscape::XML::Node *repr)
873 {
874 unsigned int v;
875 unsigned int set = sp_repr_get_boolean(repr, "showguides", &v);
876 if (!set) { // hide guides if not specified, for backwards compatibility
877 v = FALSE;
878 } else {
879 v = !v;
880 }
882 bool saved = sp_document_get_undo_sensitive(doc);
883 sp_document_set_undo_sensitive(doc, false);
885 sp_repr_set_boolean(repr, "showguides", v);
887 doc->rroot->setAttribute("sodipodi:modified", "true");
888 sp_document_set_undo_sensitive(doc, saved);
889 }
891 void sp_namedview_show_grids(SPNamedView * namedview, bool show, bool dirty_document)
892 {
893 namedview->grids_visible = show;
895 SPDocument *doc = SP_OBJECT_DOCUMENT (namedview);
896 Inkscape::XML::Node *repr = SP_OBJECT_REPR(namedview);
898 bool saved = sp_document_get_undo_sensitive(doc);
899 sp_document_set_undo_sensitive(doc, false);
901 sp_repr_set_boolean(repr, "showgrid", namedview->grids_visible);
903 /* we don't want the document to get dirty on startup; that's when
904 we call this function with dirty_document = false */
905 if (dirty_document) {
906 doc->rroot->setAttribute("sodipodi:modified", "true");
907 }
908 sp_document_set_undo_sensitive(doc, saved);
909 }
911 gchar const *SPNamedView::getName() const
912 {
913 SPException ex;
914 SP_EXCEPTION_INIT(&ex);
915 return sp_object_getAttribute(SP_OBJECT(this), "id", &ex);
916 }
918 guint SPNamedView::getViewCount()
919 {
920 return ++viewcount;
921 }
923 GSList const *SPNamedView::getViewList() const
924 {
925 return views;
926 }
928 /* This should be moved somewhere */
930 static gboolean sp_str_to_bool(const gchar *str)
931 {
932 if (str) {
933 if (!g_strcasecmp(str, "true") ||
934 !g_strcasecmp(str, "yes") ||
935 !g_strcasecmp(str, "y") ||
936 (atoi(str) != 0)) {
937 return TRUE;
938 }
939 }
941 return FALSE;
942 }
944 /* fixme: Collect all these length parsing methods and think common sane API */
946 static gboolean sp_nv_read_length(const gchar *str, guint base, gdouble *val, const SPUnit **unit)
947 {
948 if (!str) {
949 return FALSE;
950 }
952 gchar *u;
953 gdouble v = g_ascii_strtod(str, &u);
954 if (!u) {
955 return FALSE;
956 }
957 while (isspace(*u)) {
958 u += 1;
959 }
961 if (!*u) {
962 /* No unit specified - keep default */
963 *val = v;
964 return TRUE;
965 }
967 if (base & SP_UNIT_DEVICE) {
968 if (u[0] && u[1] && !isalnum(u[2]) && !strncmp(u, "px", 2)) {
969 *unit = &sp_unit_get_by_id(SP_UNIT_PX);
970 *val = v;
971 return TRUE;
972 }
973 }
975 if (base & SP_UNIT_ABSOLUTE) {
976 if (!strncmp(u, "pt", 2)) {
977 *unit = &sp_unit_get_by_id(SP_UNIT_PT);
978 } else if (!strncmp(u, "mm", 2)) {
979 *unit = &sp_unit_get_by_id(SP_UNIT_MM);
980 } else if (!strncmp(u, "cm", 2)) {
981 *unit = &sp_unit_get_by_id(SP_UNIT_CM);
982 } else if (!strncmp(u, "m", 1)) {
983 *unit = &sp_unit_get_by_id(SP_UNIT_M);
984 } else if (!strncmp(u, "in", 2)) {
985 *unit = &sp_unit_get_by_id(SP_UNIT_IN);
986 } else {
987 return FALSE;
988 }
989 *val = v;
990 return TRUE;
991 }
993 return FALSE;
994 }
996 static gboolean sp_nv_read_opacity(const gchar *str, guint32 *color)
997 {
998 if (!str) {
999 return FALSE;
1000 }
1002 gchar *u;
1003 gdouble v = g_ascii_strtod(str, &u);
1004 if (!u) {
1005 return FALSE;
1006 }
1007 v = CLAMP(v, 0.0, 1.0);
1009 *color = (*color & 0xffffff00) | (guint32) floor(v * 255.9999);
1011 return TRUE;
1012 }
1014 SPNamedView *sp_document_namedview(SPDocument *document, const gchar *id)
1015 {
1016 g_return_val_if_fail(document != NULL, NULL);
1018 SPObject *nv = sp_item_group_get_child_by_name((SPGroup *) document->root, NULL, "sodipodi:namedview");
1019 g_assert(nv != NULL);
1021 if (id == NULL) {
1022 return (SPNamedView *) nv;
1023 }
1025 while (nv && strcmp(nv->id, id)) {
1026 nv = sp_item_group_get_child_by_name((SPGroup *) document->root, nv, "sodipodi:namedview");
1027 }
1029 return (SPNamedView *) nv;
1030 }
1032 /**
1033 * Returns namedview's default metric.
1034 */
1035 SPMetric SPNamedView::getDefaultMetric() const
1036 {
1037 if (doc_units) {
1038 return sp_unit_get_metric(doc_units);
1039 } else {
1040 return SP_PT;
1041 }
1042 }
1044 /**
1045 * Returns the first grid it could find that isEnabled(). Returns NULL, if none is enabled
1046 */
1047 Inkscape::CanvasGrid * sp_namedview_get_first_enabled_grid(SPNamedView *namedview)
1048 {
1049 for (GSList const * l = namedview->grids; l != NULL; l = l->next) {
1050 Inkscape::CanvasGrid * grid = (Inkscape::CanvasGrid*) l->data;
1051 if (grid->isEnabled())
1052 return grid;
1053 }
1055 return NULL;
1056 }
1059 /*
1060 Local Variables:
1061 mode:c++
1062 c-file-style:"stroustrup"
1063 c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
1064 indent-tabs-mode:nil
1065 fill-column:99
1066 End:
1067 */
1068 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=99 :