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"
18 #include <cstring>
19 #include <string>
21 #include "display/canvas-grid.h"
22 #include "helper/units.h"
23 #include "svg/svg-color.h"
24 #include "xml/repr.h"
25 #include "attributes.h"
26 #include "document.h"
27 #include "desktop-events.h"
28 #include "desktop-handles.h"
29 #include "event-log.h"
30 #include "sp-guide.h"
31 #include "sp-item-group.h"
32 #include "sp-namedview.h"
33 #include "prefs-utils.h"
34 #include "desktop.h"
35 #include "conn-avoid-ref.h" // for defaultConnSpacing.
37 #include "isnan.h" //temp fix for isnan(). include last
39 #define DEFAULTTOLERANCE 0.4
40 #define DEFAULTGRIDCOLOR 0x3f3fff25
41 #define DEFAULTGRIDEMPCOLOR 0x3f3fff60
42 #define DEFAULTGRIDEMPSPACING 5
43 #define DEFAULTGUIDECOLOR 0x0000ff7f
44 #define DEFAULTGUIDEHICOLOR 0xff00007f
45 #define DEFAULTBORDERCOLOR 0x000000ff
46 #define DEFAULTPAGECOLOR 0xffffff00
48 static void sp_namedview_class_init(SPNamedViewClass *klass);
49 static void sp_namedview_init(SPNamedView *namedview);
51 static void sp_namedview_build(SPObject *object, SPDocument *document, Inkscape::XML::Node *repr);
52 static void sp_namedview_release(SPObject *object);
53 static void sp_namedview_set(SPObject *object, unsigned int key, const gchar *value);
54 static void sp_namedview_child_added(SPObject *object, Inkscape::XML::Node *child, Inkscape::XML::Node *ref);
55 static void sp_namedview_remove_child(SPObject *object, Inkscape::XML::Node *child);
56 static Inkscape::XML::Node *sp_namedview_write(SPObject *object, Inkscape::XML::Node *repr, guint flags);
58 static void sp_namedview_setup_guides(SPNamedView * nv);
60 static gboolean sp_str_to_bool(const gchar *str);
61 static gboolean sp_nv_read_length(const gchar *str, guint base, gdouble *val, const SPUnit **unit);
62 static gboolean sp_nv_read_opacity(const gchar *str, guint32 *color);
64 static SPObjectGroupClass * parent_class;
66 GType
67 sp_namedview_get_type()
68 {
69 static GType namedview_type = 0;
70 if (!namedview_type) {
71 GTypeInfo namedview_info = {
72 sizeof(SPNamedViewClass),
73 NULL, /* base_init */
74 NULL, /* base_finalize */
75 (GClassInitFunc) sp_namedview_class_init,
76 NULL, /* class_finalize */
77 NULL, /* class_data */
78 sizeof(SPNamedView),
79 16, /* n_preallocs */
80 (GInstanceInitFunc) sp_namedview_init,
81 NULL, /* value_table */
82 };
83 namedview_type = g_type_register_static(SP_TYPE_OBJECTGROUP, "SPNamedView", &namedview_info, (GTypeFlags)0);
84 }
85 return namedview_type;
86 }
88 static void sp_namedview_class_init(SPNamedViewClass * klass)
89 {
90 GObjectClass * gobject_class;
91 SPObjectClass * sp_object_class;
93 gobject_class = (GObjectClass *) klass;
94 sp_object_class = (SPObjectClass *) klass;
96 parent_class = (SPObjectGroupClass*) g_type_class_ref(SP_TYPE_OBJECTGROUP);
98 sp_object_class->build = sp_namedview_build;
99 sp_object_class->release = sp_namedview_release;
100 sp_object_class->set = sp_namedview_set;
101 sp_object_class->child_added = sp_namedview_child_added;
102 sp_object_class->remove_child = sp_namedview_remove_child;
103 sp_object_class->write = sp_namedview_write;
104 }
106 static void sp_namedview_init(SPNamedView *nv)
107 {
108 nv->editable = TRUE;
109 nv->showguides = TRUE;
110 nv->grids_visible = false;
111 nv->showborder = TRUE;
112 nv->showpageshadow = TRUE;
114 nv->guides = NULL;
115 nv->viewcount = 0;
116 nv->grids = NULL;
118 nv->default_layer_id = 0;
120 nv->connector_spacing = defaultConnSpacing;
122 new (&nv->snap_manager) SnapManager(nv);
123 }
125 static void sp_namedview_generate_old_grid(SPNamedView * /*nv*/, SPDocument *document, Inkscape::XML::Node *repr) {
126 bool old_grid_settings_present = false;
128 // set old settings
129 const char* gridspacingx = "1px";
130 const char* gridspacingy = "1px";
131 const char* gridoriginy = "0px";
132 const char* gridoriginx = "0px";
133 const char* gridempspacing = "5";
134 const char* gridcolor = "#0000ff";
135 const char* gridempcolor = "#0000ff";
136 const char* gridopacity = "0.2";
137 const char* gridempopacity = "0.4";
139 const char* value = NULL;
140 if ((value = repr->attribute("gridoriginx"))) {
141 gridspacingx = value;
142 old_grid_settings_present = true;
143 }
144 if ((value = repr->attribute("gridoriginy"))) {
145 gridoriginy = value;
146 old_grid_settings_present = true;
147 }
148 if ((value = repr->attribute("gridspacingx"))) {
149 gridspacingx = value;
150 old_grid_settings_present = true;
151 }
152 if ((value = repr->attribute("gridspacingy"))) {
153 gridspacingy = value;
154 old_grid_settings_present = true;
155 }
156 if ((value = repr->attribute("gridcolor"))) {
157 gridcolor = value;
158 old_grid_settings_present = true;
159 }
160 if ((value = repr->attribute("gridempcolor"))) {
161 gridempcolor = value;
162 old_grid_settings_present = true;
163 }
164 if ((value = repr->attribute("gridempspacing"))) {
165 gridempspacing = value;
166 old_grid_settings_present = true;
167 }
168 if ((value = repr->attribute("gridopacity"))) {
169 gridopacity = value;
170 old_grid_settings_present = true;
171 }
172 if ((value = repr->attribute("gridempopacity"))) {
173 gridempopacity = value;
174 old_grid_settings_present = true;
175 }
177 if (old_grid_settings_present) {
178 // generate new xy grid with the correct settings
179 // 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.
181 Inkscape::XML::Document *xml_doc = sp_document_repr_doc(document);
182 Inkscape::XML::Node *newnode = xml_doc->createElement("inkscape:grid");
183 newnode->setAttribute("id", "GridFromPre046Settings");
184 newnode->setAttribute("type", Inkscape::CanvasGrid::getSVGName(Inkscape::GRID_RECTANGULAR));
185 newnode->setAttribute("originx", gridoriginx);
186 newnode->setAttribute("originy", gridoriginy);
187 newnode->setAttribute("spacingx", gridspacingx);
188 newnode->setAttribute("spacingy", gridspacingy);
189 newnode->setAttribute("color", gridcolor);
190 newnode->setAttribute("empcolor", gridempcolor);
191 newnode->setAttribute("opacity", gridopacity);
192 newnode->setAttribute("empopacity", gridempopacity);
193 newnode->setAttribute("empspacing", gridempspacing);
195 repr->appendChild(newnode);
196 Inkscape::GC::release(newnode);
198 // remove all old settings
199 repr->setAttribute("gridoriginx", NULL);
200 repr->setAttribute("gridoriginy", NULL);
201 repr->setAttribute("gridspacingx", NULL);
202 repr->setAttribute("gridspacingy", NULL);
203 repr->setAttribute("gridcolor", NULL);
204 repr->setAttribute("gridempcolor", NULL);
205 repr->setAttribute("gridopacity", NULL);
206 repr->setAttribute("gridempopacity", NULL);
207 repr->setAttribute("gridempspacing", NULL);
209 // sp_document_done(doc, SP_VERB_DIALOG_NAMEDVIEW, _("Create new grid from pre0.46 grid settings"));
210 }
211 }
213 static void sp_namedview_build(SPObject *object, SPDocument *document, Inkscape::XML::Node *repr)
214 {
215 SPNamedView *nv = (SPNamedView *) object;
216 SPObjectGroup *og = (SPObjectGroup *) object;
218 if (((SPObjectClass *) (parent_class))->build) {
219 (* ((SPObjectClass *) (parent_class))->build)(object, document, repr);
220 }
222 sp_object_read_attr(object, "inkscape:document-units");
223 sp_object_read_attr(object, "viewonly");
224 sp_object_read_attr(object, "showguides");
225 sp_object_read_attr(object, "showgrid");
226 sp_object_read_attr(object, "gridtolerance");
227 sp_object_read_attr(object, "guidetolerance");
228 sp_object_read_attr(object, "objecttolerance");
229 sp_object_read_attr(object, "guidecolor");
230 sp_object_read_attr(object, "guideopacity");
231 sp_object_read_attr(object, "guidehicolor");
232 sp_object_read_attr(object, "guidehiopacity");
233 sp_object_read_attr(object, "showborder");
234 sp_object_read_attr(object, "inkscape:showpageshadow");
235 sp_object_read_attr(object, "borderlayer");
236 sp_object_read_attr(object, "bordercolor");
237 sp_object_read_attr(object, "borderopacity");
238 sp_object_read_attr(object, "pagecolor");
239 sp_object_read_attr(object, "inkscape:pageopacity");
240 sp_object_read_attr(object, "inkscape:pageshadow");
241 sp_object_read_attr(object, "inkscape:zoom");
242 sp_object_read_attr(object, "inkscape:cx");
243 sp_object_read_attr(object, "inkscape:cy");
244 sp_object_read_attr(object, "inkscape:window-width");
245 sp_object_read_attr(object, "inkscape:window-height");
246 sp_object_read_attr(object, "inkscape:window-x");
247 sp_object_read_attr(object, "inkscape:window-y");
248 sp_object_read_attr(object, "inkscape:snap-global");
249 sp_object_read_attr(object, "inkscape:snap-bbox");
250 sp_object_read_attr(object, "inkscape:snap-nodes");
251 sp_object_read_attr(object, "inkscape:snap-guide");
252 sp_object_read_attr(object, "inkscape:snap-center");
253 sp_object_read_attr(object, "inkscape:snap-intersection-grid-guide");
254 sp_object_read_attr(object, "inkscape:snap-intersection-line-segments");
255 sp_object_read_attr(object, "inkscape:object-paths");
256 sp_object_read_attr(object, "inkscape:object-nodes");
257 sp_object_read_attr(object, "inkscape:bbox-paths");
258 sp_object_read_attr(object, "inkscape:bbox-nodes");
259 sp_object_read_attr(object, "inkscape:snap-page");
260 sp_object_read_attr(object, "inkscape:current-layer");
261 sp_object_read_attr(object, "inkscape:connector-spacing");
263 /* Construct guideline list */
264 for (SPObject *o = sp_object_first_child(SP_OBJECT(og)) ; o != NULL; o = SP_OBJECT_NEXT(o) ) {
265 if (SP_IS_GUIDE(o)) {
266 SPGuide * g = SP_GUIDE(o);
267 nv->guides = g_slist_prepend(nv->guides, g);
268 g_object_set(G_OBJECT(g), "color", nv->guidecolor, "hicolor", nv->guidehicolor, NULL);
269 }
270 }
272 // backwards compatibility with grid settings (pre 0.46)
273 sp_namedview_generate_old_grid(nv, document, repr);
274 }
276 static void sp_namedview_release(SPObject *object)
277 {
278 SPNamedView *namedview = (SPNamedView *) object;
280 if (namedview->guides) {
281 g_slist_free(namedview->guides);
282 namedview->guides = NULL;
283 }
285 // delete grids:
286 while ( namedview->grids ) {
287 Inkscape::CanvasGrid *gr = (Inkscape::CanvasGrid *)namedview->grids->data; // get first entry
288 delete gr;
289 namedview->grids = g_slist_remove_link(namedview->grids, namedview->grids); // deletes first entry
290 }
292 if (((SPObjectClass *) parent_class)->release) {
293 ((SPObjectClass *) parent_class)->release(object);
294 }
296 namedview->snap_manager.~SnapManager();
297 }
299 static void sp_namedview_set(SPObject *object, unsigned int key, const gchar *value)
300 {
301 SPNamedView *nv = SP_NAMEDVIEW(object);
302 SPUnit const &px = sp_unit_get_by_id(SP_UNIT_PX);
304 switch (key) {
305 case SP_ATTR_VIEWONLY:
306 nv->editable = (!value);
307 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
308 break;
309 case SP_ATTR_SHOWGUIDES:
310 if (!value) { // show guides if not specified, for backwards compatibility
311 nv->showguides = TRUE;
312 } else {
313 nv->showguides = sp_str_to_bool(value);
314 }
315 sp_namedview_setup_guides(nv);
316 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
317 break;
318 case SP_ATTR_SHOWGRIDS:
319 if (!value) { // don't show grids if not specified, for backwards compatibility
320 nv->grids_visible = false;
321 } else {
322 nv->grids_visible = sp_str_to_bool(value);
323 }
324 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
325 break;
326 case SP_ATTR_GRIDTOLERANCE:
327 nv->gridtoleranceunit = &px;
328 nv->gridtolerance = DEFAULTTOLERANCE;
329 if (value) {
330 sp_nv_read_length(value, SP_UNIT_ABSOLUTE | SP_UNIT_DEVICE, &nv->gridtolerance, &nv->gridtoleranceunit);
331 }
332 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
333 break;
334 case SP_ATTR_GUIDETOLERANCE:
335 nv->guidetoleranceunit = &px;
336 nv->guidetolerance = DEFAULTTOLERANCE;
337 if (value) {
338 sp_nv_read_length(value, SP_UNIT_ABSOLUTE | SP_UNIT_DEVICE, &nv->guidetolerance, &nv->guidetoleranceunit);
339 }
340 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
341 break;
342 case SP_ATTR_OBJECTTOLERANCE:
343 nv->objecttoleranceunit = &px;
344 nv->objecttolerance = DEFAULTTOLERANCE;
345 if (value) {
346 sp_nv_read_length(value, SP_UNIT_ABSOLUTE | SP_UNIT_DEVICE, &nv->objecttolerance, &nv->objecttoleranceunit);
347 }
348 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
349 break;
350 case SP_ATTR_GUIDECOLOR:
351 nv->guidecolor = (nv->guidecolor & 0xff) | (DEFAULTGUIDECOLOR & 0xffffff00);
352 if (value) {
353 nv->guidecolor = (nv->guidecolor & 0xff) | sp_svg_read_color(value, nv->guidecolor);
354 }
355 for (GSList *l = nv->guides; l != NULL; l = l->next) {
356 g_object_set(G_OBJECT(l->data), "color", nv->guidecolor, NULL);
357 }
358 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
359 break;
360 case SP_ATTR_GUIDEOPACITY:
361 nv->guidecolor = (nv->guidecolor & 0xffffff00) | (DEFAULTGUIDECOLOR & 0xff);
362 sp_nv_read_opacity(value, &nv->guidecolor);
363 for (GSList *l = nv->guides; l != NULL; l = l->next) {
364 g_object_set(G_OBJECT(l->data), "color", nv->guidecolor, NULL);
365 }
366 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
367 break;
368 case SP_ATTR_GUIDEHICOLOR:
369 nv->guidehicolor = (nv->guidehicolor & 0xff) | (DEFAULTGUIDEHICOLOR & 0xffffff00);
370 if (value) {
371 nv->guidehicolor = (nv->guidehicolor & 0xff) | sp_svg_read_color(value, nv->guidehicolor);
372 }
373 for (GSList *l = nv->guides; l != NULL; l = l->next) {
374 g_object_set(G_OBJECT(l->data), "hicolor", nv->guidehicolor, NULL);
375 }
376 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
377 break;
378 case SP_ATTR_GUIDEHIOPACITY:
379 nv->guidehicolor = (nv->guidehicolor & 0xffffff00) | (DEFAULTGUIDEHICOLOR & 0xff);
380 sp_nv_read_opacity(value, &nv->guidehicolor);
381 for (GSList *l = nv->guides; l != NULL; l = l->next) {
382 g_object_set(G_OBJECT(l->data), "hicolor", nv->guidehicolor, NULL);
383 }
384 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
385 break;
386 case SP_ATTR_SHOWBORDER:
387 nv->showborder = (value) ? sp_str_to_bool (value) : TRUE;
388 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
389 break;
390 case SP_ATTR_BORDERLAYER:
391 nv->borderlayer = SP_BORDER_LAYER_BOTTOM;
392 if (value && !strcasecmp(value, "true")) nv->borderlayer = SP_BORDER_LAYER_TOP;
393 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
394 break;
395 case SP_ATTR_BORDERCOLOR:
396 nv->bordercolor = (nv->bordercolor & 0xff) | (DEFAULTBORDERCOLOR & 0xffffff00);
397 if (value) {
398 nv->bordercolor = (nv->bordercolor & 0xff) | sp_svg_read_color (value, nv->bordercolor);
399 }
400 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
401 break;
402 case SP_ATTR_BORDEROPACITY:
403 nv->bordercolor = (nv->bordercolor & 0xffffff00) | (DEFAULTBORDERCOLOR & 0xff);
404 sp_nv_read_opacity(value, &nv->bordercolor);
405 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
406 break;
407 case SP_ATTR_PAGECOLOR:
408 nv->pagecolor = (nv->pagecolor & 0xff) | (DEFAULTPAGECOLOR & 0xffffff00);
409 if (value) {
410 nv->pagecolor = (nv->pagecolor & 0xff) | sp_svg_read_color(value, nv->pagecolor);
411 }
412 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
413 break;
414 case SP_ATTR_INKSCAPE_PAGEOPACITY:
415 nv->pagecolor = (nv->pagecolor & 0xffffff00) | (DEFAULTPAGECOLOR & 0xff);
416 sp_nv_read_opacity(value, &nv->pagecolor);
417 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
418 break;
419 case SP_ATTR_INKSCAPE_PAGESHADOW:
420 nv->pageshadow = value? atoi(value) : 2; // 2 is the default
421 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
422 break;
423 case SP_ATTR_SHOWPAGESHADOW:
424 nv->showpageshadow = (value) ? sp_str_to_bool(value) : TRUE;
425 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
426 break;
427 case SP_ATTR_INKSCAPE_ZOOM:
428 nv->zoom = value ? g_ascii_strtod(value, NULL) : 0; // zero means not set
429 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
430 break;
431 case SP_ATTR_INKSCAPE_CX:
432 nv->cx = value ? g_ascii_strtod(value, NULL) : HUGE_VAL; // HUGE_VAL means not set
433 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
434 break;
435 case SP_ATTR_INKSCAPE_CY:
436 nv->cy = value ? g_ascii_strtod(value, NULL) : HUGE_VAL; // HUGE_VAL means not set
437 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
438 break;
439 case SP_ATTR_INKSCAPE_WINDOW_WIDTH:
440 nv->window_width = value? atoi(value) : -1; // -1 means not set
441 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
442 break;
443 case SP_ATTR_INKSCAPE_WINDOW_HEIGHT:
444 nv->window_height = value ? atoi(value) : -1; // -1 means not set
445 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
446 break;
447 case SP_ATTR_INKSCAPE_WINDOW_X:
448 nv->window_x = value ? atoi(value) : -1; // -1 means not set
449 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
450 break;
451 case SP_ATTR_INKSCAPE_WINDOW_Y:
452 nv->window_y = value ? atoi(value) : -1; // -1 means not set
453 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
454 break;
455 case SP_ATTR_INKSCAPE_SNAP_GLOBAL:
456 nv->snap_manager.setSnapEnabledGlobally(value ? sp_str_to_bool(value) : TRUE);
457 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
458 break;
459 case SP_ATTR_INKSCAPE_SNAP_BBOX:
460 nv->snap_manager.setSnapModeBBox(value ? sp_str_to_bool(value) : FALSE);
461 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
462 break;
463 case SP_ATTR_INKSCAPE_SNAP_NODES:
464 nv->snap_manager.setSnapModeNode(value ? sp_str_to_bool(value) : TRUE);
465 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
466 break;
467 case SP_ATTR_INKSCAPE_SNAP_CENTER:
468 nv->snap_manager.setIncludeItemCenter(value ? sp_str_to_bool(value) : FALSE);
469 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
470 break;
471 case SP_ATTR_INKSCAPE_SNAP_GUIDE:
472 nv->snap_manager.setSnapModeGuide(value ? sp_str_to_bool(value) : FALSE);
473 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
474 break;
475 case SP_ATTR_INKSCAPE_SNAP_INTERS_GRIDGUIDE:
476 nv->snap_manager.setSnapIntersectionGG(value ? sp_str_to_bool(value) : TRUE);
477 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
478 break;
479 case SP_ATTR_INKSCAPE_SNAP_INTERS_LINESEGM:
480 nv->snap_manager.setSnapIntersectionLS(value ? sp_str_to_bool(value) : FALSE);
481 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
482 break;
483 case SP_ATTR_INKSCAPE_OBJECT_PATHS:
484 nv->snap_manager.object.setSnapToItemPath(value ? sp_str_to_bool(value) : FALSE);
485 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
486 break;
487 case SP_ATTR_INKSCAPE_OBJECT_NODES:
488 nv->snap_manager.object.setSnapToItemNode(value ? sp_str_to_bool(value) : FALSE);
489 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
490 break;
491 case SP_ATTR_INKSCAPE_BBOX_PATHS:
492 nv->snap_manager.object.setSnapToBBoxPath(value ? sp_str_to_bool(value) : FALSE);
493 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
494 break;
495 case SP_ATTR_INKSCAPE_BBOX_NODES:
496 nv->snap_manager.object.setSnapToBBoxNode(value ? sp_str_to_bool(value) : FALSE);
497 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
498 break;
499 case SP_ATTR_INKSCAPE_SNAP_PAGE:
500 nv->snap_manager.object.setSnapToPageBorder(value ? sp_str_to_bool(value) : FALSE);
501 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
502 break;
503 case SP_ATTR_INKSCAPE_CURRENT_LAYER:
504 nv->default_layer_id = value ? g_quark_from_string(value) : 0;
505 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
506 break;
507 case SP_ATTR_INKSCAPE_CONNECTOR_SPACING:
508 nv->connector_spacing = value ? g_ascii_strtod(value, NULL) :
509 defaultConnSpacing;
510 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
511 break;
512 case SP_ATTR_INKSCAPE_DOCUMENT_UNITS: {
513 /* The default unit if the document doesn't override this: e.g. for files saved as
514 * `plain SVG', or non-inkscape files, or files created by an inkscape 0.40 &
515 * earlier.
516 *
517 * Here we choose `px': useful for screen-destined SVGs, and fewer bug reports
518 * about "not the same numbers as what's in the SVG file" (at least for documents
519 * without a viewBox attribute on the root <svg> element). Similarly, it's also
520 * the most reliable unit (i.e. least likely to be wrong in different viewing
521 * conditions) for viewBox-less SVG files given that it's the unit that inkscape
522 * uses for all coordinates.
523 *
524 * For documents that do have a viewBox attribute on the root <svg> element, it
525 * might be better if we used either viewBox coordinates or if we used the unit of
526 * say the width attribute of the root <svg> element. However, these pose problems
527 * in that they aren't in general absolute units as currently required by
528 * doc_units.
529 */
530 SPUnit const *new_unit = &sp_unit_get_by_id(SP_UNIT_PX);
532 if (value) {
533 SPUnit const *const req_unit = sp_unit_get_by_abbreviation(value);
534 if ( req_unit == NULL ) {
535 g_warning("Unrecognized unit `%s'", value);
536 /* fixme: Document errors should be reported in the status bar or
537 * the like (e.g. as per
538 * http://www.w3.org/TR/SVG11/implnote.html#ErrorProcessing); g_log
539 * should be only for programmer errors. */
540 } else if ( req_unit->base == SP_UNIT_ABSOLUTE ||
541 req_unit->base == SP_UNIT_DEVICE ) {
542 new_unit = req_unit;
543 } else {
544 g_warning("Document units must be absolute like `mm', `pt' or `px', but found `%s'",
545 value);
546 /* fixme: Don't use g_log (see above). */
547 }
548 }
549 nv->doc_units = new_unit;
550 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
551 break;
552 }
553 default:
554 if (((SPObjectClass *) (parent_class))->set) {
555 ((SPObjectClass *) (parent_class))->set(object, key, value);
556 }
557 break;
558 }
559 }
561 /**
562 * 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,
563 * otherwise only add it to the specified desktop.
564 */
565 static Inkscape::CanvasGrid*
566 sp_namedview_add_grid(SPNamedView *nv, Inkscape::XML::Node *repr, SPDesktop *desktop) {
567 Inkscape::CanvasGrid* grid = NULL;
568 //check if namedview already has an object for this grid
569 for (GSList *l = nv->grids; l != NULL; l = l->next) {
570 Inkscape::CanvasGrid* g = (Inkscape::CanvasGrid*) l->data;
571 if (repr == g->repr) {
572 grid = g;
573 break;
574 }
575 }
577 if (!grid) {
578 //create grid object
579 Inkscape::GridType gridtype = Inkscape::CanvasGrid::getGridTypeFromSVGName(repr->attribute("type"));
580 SPDocument *doc = NULL;
581 if (desktop)
582 doc = sp_desktop_document(desktop);
583 else
584 doc = sp_desktop_document(static_cast<SPDesktop*>(nv->views->data));
585 if (!doc) {
586 g_warning("sp_namedview_add_grid - how come doc is null here?!");
587 return NULL;
588 }
589 grid = Inkscape::CanvasGrid::NewGrid(nv, repr, doc, gridtype);
590 nv->grids = g_slist_append(nv->grids, grid);
591 //Initialize the snapping parameters for the new grid
592 bool enabled_node = nv->snap_manager.getSnapModeNode();
593 bool enabled_bbox = nv->snap_manager.getSnapModeBBox();
594 grid->snapper->setSnapFrom(Inkscape::Snapper::SNAPPOINT_NODE, enabled_node);
595 grid->snapper->setSnapFrom(Inkscape::Snapper::SNAPPOINT_BBOX, enabled_bbox);
596 }
598 if (!desktop) {
599 //add canvasitem to all desktops
600 for (GSList *l = nv->views; l != NULL; l = l->next) {
601 SPDesktop *dt = static_cast<SPDesktop*>(l->data);
602 grid->createCanvasItem(dt);
603 }
604 } else {
605 //add canvasitem only for specified desktop
606 grid->createCanvasItem(desktop);
607 }
609 return grid;
610 }
612 static void sp_namedview_child_added(SPObject *object, Inkscape::XML::Node *child, Inkscape::XML::Node *ref)
613 {
614 SPNamedView *nv = (SPNamedView *) object;
616 if (((SPObjectClass *) (parent_class))->child_added) {
617 (* ((SPObjectClass *) (parent_class))->child_added)(object, child, ref);
618 }
620 if (!strcmp(child->name(), "inkscape:grid")) {
621 sp_namedview_add_grid(nv, child, NULL);
622 } else {
623 SPObject *no = object->document->getObjectByRepr(child);
624 if ( !SP_IS_OBJECT(no) )
625 return;
627 if (SP_IS_GUIDE(no)) {
628 SPGuide *g = (SPGuide *) no;
629 nv->guides = g_slist_prepend(nv->guides, g);
630 g_object_set(G_OBJECT(g), "color", nv->guidecolor, "hicolor", nv->guidehicolor, NULL);
631 if (nv->editable) {
632 for (GSList *l = nv->views; l != NULL; l = l->next) {
633 sp_guide_show(g, static_cast<SPDesktop*>(l->data)->guides, (GCallback) sp_dt_guide_event);
634 if (static_cast<SPDesktop*>(l->data)->guides_active)
635 sp_guide_sensitize(g,
636 sp_desktop_canvas(static_cast<SPDesktop*> (l->data)),
637 TRUE);
638 if (nv->showguides) {
639 for (GSList *v = SP_GUIDE(g)->views; v != NULL; v = v->next) {
640 sp_canvas_item_show(SP_CANVAS_ITEM(v->data));
641 }
642 } else {
643 for (GSList *v = SP_GUIDE(g)->views; v != NULL; v = v->next) {
644 sp_canvas_item_hide(SP_CANVAS_ITEM(v->data));
645 }
646 }
647 }
648 }
649 }
650 }
651 }
653 static void sp_namedview_remove_child(SPObject *object, Inkscape::XML::Node *child)
654 {
655 SPNamedView *nv = (SPNamedView *) object;
657 if (!strcmp(child->name(), "inkscape:grid")) {
658 for ( GSList *iter = nv->grids ; iter ; iter = iter->next ) {
659 Inkscape::CanvasGrid *gr = (Inkscape::CanvasGrid *)iter->data;
660 if ( gr->repr == child ) {
661 delete gr;
662 nv->grids = g_slist_remove_link(nv->grids, iter);
663 break;
664 }
665 }
666 } else {
667 GSList **ref = &nv->guides;
668 for ( GSList *iter = nv->guides ; iter ; iter = iter->next ) {
669 if ( SP_OBJECT_REPR((SPObject *)iter->data) == child ) {
670 *ref = iter->next;
671 iter->next = NULL;
672 g_slist_free_1(iter);
673 break;
674 }
675 ref = &iter->next;
676 }
677 }
679 if (((SPObjectClass *) (parent_class))->remove_child) {
680 (* ((SPObjectClass *) (parent_class))->remove_child)(object, child);
681 }
682 }
684 static Inkscape::XML::Node *sp_namedview_write(SPObject *object, Inkscape::XML::Node *repr, guint flags)
685 {
686 if ( ( flags & SP_OBJECT_WRITE_EXT ) &&
687 repr != SP_OBJECT_REPR(object) )
688 {
689 if (repr) {
690 repr->mergeFrom(SP_OBJECT_REPR(object), "id");
691 } else {
692 /// \todo FIXME: Plumb an appropriate XML::Document into this
693 repr = SP_OBJECT_REPR(object)->duplicate(NULL);
694 }
695 }
697 return repr;
698 }
700 void SPNamedView::show(SPDesktop *desktop)
701 {
702 for (GSList *l = guides; l != NULL; l = l->next) {
703 sp_guide_show(SP_GUIDE(l->data), desktop->guides, (GCallback) sp_dt_guide_event);
704 if (desktop->guides_active) {
705 sp_guide_sensitize(SP_GUIDE(l->data), sp_desktop_canvas(desktop), TRUE);
706 }
707 if (showguides) {
708 for (GSList *v = SP_GUIDE(l->data)->views; v != NULL; v = v->next) {
709 sp_canvas_item_show(SP_CANVAS_ITEM(v->data));
710 }
711 } else {
712 for (GSList *v = SP_GUIDE(l->data)->views; v != NULL; v = v->next) {
713 sp_canvas_item_hide(SP_CANVAS_ITEM(v->data));
714 }
715 }
716 }
718 views = g_slist_prepend(views, desktop);
720 // generate grids specified in SVG:
721 Inkscape::XML::Node *repr = SP_OBJECT_REPR(this);
722 if (repr) {
723 for (Inkscape::XML::Node * child = repr->firstChild() ; child != NULL; child = child->next() ) {
724 if (!strcmp(child->name(), "inkscape:grid")) {
725 sp_namedview_add_grid(this, child, desktop);
726 }
727 }
728 }
730 desktop->showGrids(grids_visible, false);
731 }
733 #define MIN_ONSCREEN_DISTANCE 50
735 /*
736 * Restores window geometry from the document settings or defaults in prefs
737 */
738 void sp_namedview_window_from_document(SPDesktop *desktop)
739 {
740 SPNamedView *nv = desktop->namedview;
741 gint geometry_from_file =
742 (1==prefs_get_int_attribute("options.savewindowgeometry", "value", 0));
744 // restore window size and position stored with the document
745 if (geometry_from_file) {
746 gint w = MIN(gdk_screen_width(), nv->window_width);
747 gint h = MIN(gdk_screen_height(), nv->window_height);
748 gint x = MIN(gdk_screen_width() - MIN_ONSCREEN_DISTANCE, nv->window_x);
749 gint y = MIN(gdk_screen_height() - MIN_ONSCREEN_DISTANCE, nv->window_y);
750 if (w>0 && h>0 && x>0 && y>0) {
751 x = MIN(gdk_screen_width() - w, x);
752 y = MIN(gdk_screen_height() - h, y);
753 }
754 if (w>0 && h>0) {
755 desktop->setWindowSize(w, h);
756 }
757 if (x>0 && y>0) {
758 desktop->setWindowPosition(NR::Point(x, y));
759 }
760 }
762 // restore zoom and view
763 if (nv->zoom != 0 && nv->zoom != HUGE_VAL && !isNaN(nv->zoom)
764 && nv->cx != HUGE_VAL && !isNaN(nv->cx)
765 && nv->cy != HUGE_VAL && !isNaN(nv->cy)) {
766 desktop->zoom_absolute(nv->cx, nv->cy, nv->zoom);
767 } else if (sp_desktop_document(desktop)) { // document without saved zoom, zoom to its page
768 desktop->zoom_page();
769 }
771 // cancel any history of zooms up to this point
772 if (desktop->zooms_past) {
773 g_list_free(desktop->zooms_past);
774 desktop->zooms_past = NULL;
775 }
776 }
778 void sp_namedview_update_layers_from_document (SPDesktop *desktop)
779 {
780 SPObject *layer = NULL;
781 SPDocument *document = desktop->doc();
782 SPNamedView *nv = desktop->namedview;
783 if ( nv->default_layer_id != 0 ) {
784 layer = document->getObjectById(g_quark_to_string(nv->default_layer_id));
785 }
786 // don't use that object if it's not at least group
787 if ( !layer || !SP_IS_GROUP(layer) ) {
788 layer = NULL;
789 }
790 // if that didn't work out, look for the topmost layer
791 if (!layer) {
792 SPObject *iter = sp_object_first_child(SP_DOCUMENT_ROOT(document));
793 for ( ; iter ; iter = SP_OBJECT_NEXT(iter) ) {
794 if (desktop->isLayer(iter)) {
795 layer = iter;
796 }
797 }
798 }
799 if (layer) {
800 desktop->setCurrentLayer(layer);
801 }
803 // FIXME: find a better place to do this
804 desktop->event_log->updateUndoVerbs();
805 }
807 void sp_namedview_document_from_window(SPDesktop *desktop)
808 {
809 gint save_geometry_in_file =
810 (1==prefs_get_int_attribute("options.savewindowgeometry", "value", 0));
811 Inkscape::XML::Node *view = SP_OBJECT_REPR(desktop->namedview);
812 NR::Rect const r = desktop->get_display_area();
814 // saving window geometry is not undoable
815 bool saved = sp_document_get_undo_sensitive(sp_desktop_document(desktop));
816 sp_document_set_undo_sensitive(sp_desktop_document(desktop), false);
818 sp_repr_set_svg_double(view, "inkscape:zoom", desktop->current_zoom());
819 sp_repr_set_svg_double(view, "inkscape:cx", r.midpoint()[NR::X]);
820 sp_repr_set_svg_double(view, "inkscape:cy", r.midpoint()[NR::Y]);
822 if (save_geometry_in_file) {
823 gint w, h, x, y;
824 desktop->getWindowGeometry(x, y, w, h);
825 sp_repr_set_int(view, "inkscape:window-width", w);
826 sp_repr_set_int(view, "inkscape:window-height", h);
827 sp_repr_set_int(view, "inkscape:window-x", x);
828 sp_repr_set_int(view, "inkscape:window-y", y);
829 }
831 view->setAttribute("inkscape:current-layer", SP_OBJECT_ID(desktop->currentLayer()));
833 // restore undoability
834 sp_document_set_undo_sensitive(sp_desktop_document(desktop), saved);
835 }
837 void SPNamedView::hide(SPDesktop const *desktop)
838 {
839 g_assert(desktop != NULL);
840 g_assert(g_slist_find(views, desktop));
842 for (GSList *l = guides; l != NULL; l = l->next) {
843 sp_guide_hide(SP_GUIDE(l->data), sp_desktop_canvas(desktop));
844 }
846 views = g_slist_remove(views, desktop);
847 }
849 void SPNamedView::activateGuides(gpointer desktop, gboolean active)
850 {
851 g_assert(desktop != NULL);
852 g_assert(g_slist_find(views, desktop));
854 SPDesktop *dt = static_cast<SPDesktop*>(desktop);
856 for (GSList *l = guides; l != NULL; l = l->next) {
857 sp_guide_sensitize(SP_GUIDE(l->data), sp_desktop_canvas(dt), active);
858 }
859 }
861 static void sp_namedview_setup_guides(SPNamedView *nv)
862 {
863 for (GSList *l = nv->guides; l != NULL; l = l->next) {
864 if (nv->showguides) {
865 for (GSList *v = SP_GUIDE(l->data)->views; v != NULL; v = v->next) {
866 sp_canvas_item_show(SP_CANVAS_ITEM(v->data));
867 }
868 } else {
869 for (GSList *v = SP_GUIDE(l->data)->views; v != NULL; v = v->next) {
870 sp_canvas_item_hide(SP_CANVAS_ITEM(v->data));
871 }
872 }
873 }
874 }
876 void sp_namedview_toggle_guides(SPDocument *doc, Inkscape::XML::Node *repr)
877 {
878 unsigned int v;
879 unsigned int set = sp_repr_get_boolean(repr, "showguides", &v);
880 if (!set) { // hide guides if not specified, for backwards compatibility
881 v = FALSE;
882 } else {
883 v = !v;
884 }
886 bool saved = sp_document_get_undo_sensitive(doc);
887 sp_document_set_undo_sensitive(doc, false);
888 sp_repr_set_boolean(repr, "showguides", v);
889 sp_document_set_undo_sensitive(doc, saved);
891 doc->setModifiedSinceSave();
892 }
894 void sp_namedview_show_grids(SPNamedView * namedview, bool show, bool dirty_document)
895 {
896 namedview->grids_visible = show;
898 SPDocument *doc = SP_OBJECT_DOCUMENT (namedview);
899 Inkscape::XML::Node *repr = SP_OBJECT_REPR(namedview);
901 bool saved = sp_document_get_undo_sensitive(doc);
902 sp_document_set_undo_sensitive(doc, false);
903 sp_repr_set_boolean(repr, "showgrid", namedview->grids_visible);
904 sp_document_set_undo_sensitive(doc, saved);
906 /* we don't want the document to get dirty on startup; that's when
907 we call this function with dirty_document = false */
908 if (dirty_document) {
909 doc->setModifiedSinceSave();
910 }
911 }
913 gchar const *SPNamedView::getName() const
914 {
915 SPException ex;
916 SP_EXCEPTION_INIT(&ex);
917 return sp_object_getAttribute(SP_OBJECT(this), "id", &ex);
918 }
920 guint SPNamedView::getViewCount()
921 {
922 return ++viewcount;
923 }
925 GSList const *SPNamedView::getViewList() const
926 {
927 return views;
928 }
930 /* This should be moved somewhere */
932 static gboolean sp_str_to_bool(const gchar *str)
933 {
934 if (str) {
935 if (!g_strcasecmp(str, "true") ||
936 !g_strcasecmp(str, "yes") ||
937 !g_strcasecmp(str, "y") ||
938 (atoi(str) != 0)) {
939 return TRUE;
940 }
941 }
943 return FALSE;
944 }
946 /* fixme: Collect all these length parsing methods and think common sane API */
948 static gboolean sp_nv_read_length(const gchar *str, guint base, gdouble *val, const SPUnit **unit)
949 {
950 if (!str) {
951 return FALSE;
952 }
954 gchar *u;
955 gdouble v = g_ascii_strtod(str, &u);
956 if (!u) {
957 return FALSE;
958 }
959 while (isspace(*u)) {
960 u += 1;
961 }
963 if (!*u) {
964 /* No unit specified - keep default */
965 *val = v;
966 return TRUE;
967 }
969 if (base & SP_UNIT_DEVICE) {
970 if (u[0] && u[1] && !isalnum(u[2]) && !strncmp(u, "px", 2)) {
971 *unit = &sp_unit_get_by_id(SP_UNIT_PX);
972 *val = v;
973 return TRUE;
974 }
975 }
977 if (base & SP_UNIT_ABSOLUTE) {
978 if (!strncmp(u, "pt", 2)) {
979 *unit = &sp_unit_get_by_id(SP_UNIT_PT);
980 } else if (!strncmp(u, "mm", 2)) {
981 *unit = &sp_unit_get_by_id(SP_UNIT_MM);
982 } else if (!strncmp(u, "cm", 2)) {
983 *unit = &sp_unit_get_by_id(SP_UNIT_CM);
984 } else if (!strncmp(u, "m", 1)) {
985 *unit = &sp_unit_get_by_id(SP_UNIT_M);
986 } else if (!strncmp(u, "in", 2)) {
987 *unit = &sp_unit_get_by_id(SP_UNIT_IN);
988 } else {
989 return FALSE;
990 }
991 *val = v;
992 return TRUE;
993 }
995 return FALSE;
996 }
998 static gboolean sp_nv_read_opacity(const gchar *str, guint32 *color)
999 {
1000 if (!str) {
1001 return FALSE;
1002 }
1004 gchar *u;
1005 gdouble v = g_ascii_strtod(str, &u);
1006 if (!u) {
1007 return FALSE;
1008 }
1009 v = CLAMP(v, 0.0, 1.0);
1011 *color = (*color & 0xffffff00) | (guint32) floor(v * 255.9999);
1013 return TRUE;
1014 }
1016 SPNamedView *sp_document_namedview(SPDocument *document, const gchar *id)
1017 {
1018 g_return_val_if_fail(document != NULL, NULL);
1020 SPObject *nv = sp_item_group_get_child_by_name((SPGroup *) document->root, NULL, "sodipodi:namedview");
1021 g_assert(nv != NULL);
1023 if (id == NULL) {
1024 return (SPNamedView *) nv;
1025 }
1027 while (nv && strcmp(nv->id, id)) {
1028 nv = sp_item_group_get_child_by_name((SPGroup *) document->root, nv, "sodipodi:namedview");
1029 }
1031 return (SPNamedView *) nv;
1032 }
1034 /**
1035 * Returns namedview's default metric.
1036 */
1037 SPMetric SPNamedView::getDefaultMetric() const
1038 {
1039 if (doc_units) {
1040 return sp_unit_get_metric(doc_units);
1041 } else {
1042 return SP_PT;
1043 }
1044 }
1046 /**
1047 * Returns the first grid it could find that isEnabled(). Returns NULL, if none is enabled
1048 */
1049 Inkscape::CanvasGrid * sp_namedview_get_first_enabled_grid(SPNamedView *namedview)
1050 {
1051 for (GSList const * l = namedview->grids; l != NULL; l = l->next) {
1052 Inkscape::CanvasGrid * grid = (Inkscape::CanvasGrid*) l->data;
1053 if (grid->isEnabled())
1054 return grid;
1055 }
1057 return NULL;
1058 }
1061 /*
1062 Local Variables:
1063 mode:c++
1064 c-file-style:"stroustrup"
1065 c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
1066 indent-tabs-mode:nil
1067 fill-column:99
1068 End:
1069 */
1070 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=99 :