cc7adeaa8250ed8ab1a2f089aa44dca94033bdf7
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:current-layer");
260 sp_object_read_attr(object, "inkscape:connector-spacing");
262 /* Construct guideline list */
263 for (SPObject *o = sp_object_first_child(SP_OBJECT(og)) ; o != NULL; o = SP_OBJECT_NEXT(o) ) {
264 if (SP_IS_GUIDE(o)) {
265 SPGuide * g = SP_GUIDE(o);
266 nv->guides = g_slist_prepend(nv->guides, g);
267 g_object_set(G_OBJECT(g), "color", nv->guidecolor, "hicolor", nv->guidehicolor, NULL);
268 }
269 }
271 // backwards compatibility with grid settings (pre 0.46)
272 sp_namedview_generate_old_grid(nv, document, repr);
273 }
275 static void sp_namedview_release(SPObject *object)
276 {
277 SPNamedView *namedview = (SPNamedView *) object;
279 if (namedview->guides) {
280 g_slist_free(namedview->guides);
281 namedview->guides = NULL;
282 }
284 // delete grids:
285 while ( namedview->grids ) {
286 Inkscape::CanvasGrid *gr = (Inkscape::CanvasGrid *)namedview->grids->data; // get first entry
287 delete gr;
288 namedview->grids = g_slist_remove_link(namedview->grids, namedview->grids); // deletes first entry
289 }
291 if (((SPObjectClass *) parent_class)->release) {
292 ((SPObjectClass *) parent_class)->release(object);
293 }
295 namedview->snap_manager.~SnapManager();
296 }
298 static void sp_namedview_set(SPObject *object, unsigned int key, const gchar *value)
299 {
300 SPNamedView *nv = SP_NAMEDVIEW(object);
301 SPUnit const &px = sp_unit_get_by_id(SP_UNIT_PX);
303 switch (key) {
304 case SP_ATTR_VIEWONLY:
305 nv->editable = (!value);
306 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
307 break;
308 case SP_ATTR_SHOWGUIDES:
309 if (!value) { // show guides if not specified, for backwards compatibility
310 nv->showguides = TRUE;
311 } else {
312 nv->showguides = sp_str_to_bool(value);
313 }
314 sp_namedview_setup_guides(nv);
315 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
316 break;
317 case SP_ATTR_SHOWGRIDS:
318 if (!value) { // don't show grids if not specified, for backwards compatibility
319 nv->grids_visible = false;
320 } else {
321 nv->grids_visible = sp_str_to_bool(value);
322 }
323 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
324 break;
325 case SP_ATTR_GRIDTOLERANCE:
326 nv->gridtoleranceunit = &px;
327 nv->gridtolerance = DEFAULTTOLERANCE;
328 if (value) {
329 sp_nv_read_length(value, SP_UNIT_ABSOLUTE | SP_UNIT_DEVICE, &nv->gridtolerance, &nv->gridtoleranceunit);
330 }
331 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
332 break;
333 case SP_ATTR_GUIDETOLERANCE:
334 nv->guidetoleranceunit = &px;
335 nv->guidetolerance = DEFAULTTOLERANCE;
336 if (value) {
337 sp_nv_read_length(value, SP_UNIT_ABSOLUTE | SP_UNIT_DEVICE, &nv->guidetolerance, &nv->guidetoleranceunit);
338 }
339 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
340 break;
341 case SP_ATTR_OBJECTTOLERANCE:
342 nv->objecttoleranceunit = &px;
343 nv->objecttolerance = DEFAULTTOLERANCE;
344 if (value) {
345 sp_nv_read_length(value, SP_UNIT_ABSOLUTE | SP_UNIT_DEVICE, &nv->objecttolerance, &nv->objecttoleranceunit);
346 }
347 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
348 break;
349 case SP_ATTR_GUIDECOLOR:
350 nv->guidecolor = (nv->guidecolor & 0xff) | (DEFAULTGUIDECOLOR & 0xffffff00);
351 if (value) {
352 nv->guidecolor = (nv->guidecolor & 0xff) | sp_svg_read_color(value, nv->guidecolor);
353 }
354 for (GSList *l = nv->guides; l != NULL; l = l->next) {
355 g_object_set(G_OBJECT(l->data), "color", nv->guidecolor, NULL);
356 }
357 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
358 break;
359 case SP_ATTR_GUIDEOPACITY:
360 nv->guidecolor = (nv->guidecolor & 0xffffff00) | (DEFAULTGUIDECOLOR & 0xff);
361 sp_nv_read_opacity(value, &nv->guidecolor);
362 for (GSList *l = nv->guides; l != NULL; l = l->next) {
363 g_object_set(G_OBJECT(l->data), "color", nv->guidecolor, NULL);
364 }
365 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
366 break;
367 case SP_ATTR_GUIDEHICOLOR:
368 nv->guidehicolor = (nv->guidehicolor & 0xff) | (DEFAULTGUIDEHICOLOR & 0xffffff00);
369 if (value) {
370 nv->guidehicolor = (nv->guidehicolor & 0xff) | sp_svg_read_color(value, nv->guidehicolor);
371 }
372 for (GSList *l = nv->guides; l != NULL; l = l->next) {
373 g_object_set(G_OBJECT(l->data), "hicolor", nv->guidehicolor, NULL);
374 }
375 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
376 break;
377 case SP_ATTR_GUIDEHIOPACITY:
378 nv->guidehicolor = (nv->guidehicolor & 0xffffff00) | (DEFAULTGUIDEHICOLOR & 0xff);
379 sp_nv_read_opacity(value, &nv->guidehicolor);
380 for (GSList *l = nv->guides; l != NULL; l = l->next) {
381 g_object_set(G_OBJECT(l->data), "hicolor", nv->guidehicolor, NULL);
382 }
383 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
384 break;
385 case SP_ATTR_SHOWBORDER:
386 nv->showborder = (value) ? sp_str_to_bool (value) : TRUE;
387 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
388 break;
389 case SP_ATTR_BORDERLAYER:
390 nv->borderlayer = SP_BORDER_LAYER_BOTTOM;
391 if (value && !strcasecmp(value, "true")) nv->borderlayer = SP_BORDER_LAYER_TOP;
392 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
393 break;
394 case SP_ATTR_BORDERCOLOR:
395 nv->bordercolor = (nv->bordercolor & 0xff) | (DEFAULTBORDERCOLOR & 0xffffff00);
396 if (value) {
397 nv->bordercolor = (nv->bordercolor & 0xff) | sp_svg_read_color (value, nv->bordercolor);
398 }
399 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
400 break;
401 case SP_ATTR_BORDEROPACITY:
402 nv->bordercolor = (nv->bordercolor & 0xffffff00) | (DEFAULTBORDERCOLOR & 0xff);
403 sp_nv_read_opacity(value, &nv->bordercolor);
404 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
405 break;
406 case SP_ATTR_PAGECOLOR:
407 nv->pagecolor = (nv->pagecolor & 0xff) | (DEFAULTPAGECOLOR & 0xffffff00);
408 if (value) {
409 nv->pagecolor = (nv->pagecolor & 0xff) | sp_svg_read_color(value, nv->pagecolor);
410 }
411 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
412 break;
413 case SP_ATTR_INKSCAPE_PAGEOPACITY:
414 nv->pagecolor = (nv->pagecolor & 0xffffff00) | (DEFAULTPAGECOLOR & 0xff);
415 sp_nv_read_opacity(value, &nv->pagecolor);
416 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
417 break;
418 case SP_ATTR_INKSCAPE_PAGESHADOW:
419 nv->pageshadow = value? atoi(value) : 2; // 2 is the default
420 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
421 break;
422 case SP_ATTR_SHOWPAGESHADOW:
423 nv->showpageshadow = (value) ? sp_str_to_bool(value) : TRUE;
424 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
425 break;
426 case SP_ATTR_INKSCAPE_ZOOM:
427 nv->zoom = value ? g_ascii_strtod(value, NULL) : 0; // zero means not set
428 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
429 break;
430 case SP_ATTR_INKSCAPE_CX:
431 nv->cx = value ? g_ascii_strtod(value, NULL) : HUGE_VAL; // HUGE_VAL means not set
432 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
433 break;
434 case SP_ATTR_INKSCAPE_CY:
435 nv->cy = value ? g_ascii_strtod(value, NULL) : HUGE_VAL; // HUGE_VAL means not set
436 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
437 break;
438 case SP_ATTR_INKSCAPE_WINDOW_WIDTH:
439 nv->window_width = value? atoi(value) : -1; // -1 means not set
440 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
441 break;
442 case SP_ATTR_INKSCAPE_WINDOW_HEIGHT:
443 nv->window_height = value ? atoi(value) : -1; // -1 means not set
444 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
445 break;
446 case SP_ATTR_INKSCAPE_WINDOW_X:
447 nv->window_x = value ? atoi(value) : -1; // -1 means not set
448 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
449 break;
450 case SP_ATTR_INKSCAPE_WINDOW_Y:
451 nv->window_y = value ? atoi(value) : -1; // -1 means not set
452 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
453 break;
454 case SP_ATTR_INKSCAPE_SNAP_GLOBAL:
455 nv->snap_manager.setSnapEnabledGlobally(value ? sp_str_to_bool(value) : TRUE);
456 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
457 break;
458 case SP_ATTR_INKSCAPE_SNAP_BBOX:
459 nv->snap_manager.setSnapModeBBox(value ? sp_str_to_bool(value) : FALSE);
460 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
461 break;
462 case SP_ATTR_INKSCAPE_SNAP_NODES:
463 nv->snap_manager.setSnapModeNode(value ? sp_str_to_bool(value) : TRUE);
464 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
465 break;
466 case SP_ATTR_INKSCAPE_SNAP_CENTER:
467 nv->snap_manager.setIncludeItemCenter(value ? sp_str_to_bool(value) : FALSE);
468 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
469 break;
470 case SP_ATTR_INKSCAPE_SNAP_GUIDE:
471 nv->snap_manager.setSnapModeGuide(value ? sp_str_to_bool(value) : FALSE);
472 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
473 break;
474 case SP_ATTR_INKSCAPE_SNAP_INTERS_GRIDGUIDE:
475 nv->snap_manager.setSnapIntersectionGG(value ? sp_str_to_bool(value) : TRUE);
476 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
477 break;
478 case SP_ATTR_INKSCAPE_SNAP_INTERS_LINESEGM:
479 nv->snap_manager.setSnapIntersectionLS(value ? sp_str_to_bool(value) : FALSE);
480 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
481 break;
482 case SP_ATTR_INKSCAPE_OBJECT_PATHS:
483 nv->snap_manager.object.setSnapToItemPath(value ? sp_str_to_bool(value) : FALSE);
484 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
485 break;
486 case SP_ATTR_INKSCAPE_OBJECT_NODES:
487 nv->snap_manager.object.setSnapToItemNode(value ? sp_str_to_bool(value) : FALSE);
488 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
489 break;
490 case SP_ATTR_INKSCAPE_BBOX_PATHS:
491 nv->snap_manager.object.setSnapToBBoxPath(value ? sp_str_to_bool(value) : FALSE);
492 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
493 break;
494 case SP_ATTR_INKSCAPE_BBOX_NODES:
495 nv->snap_manager.object.setSnapToBBoxNode(value ? sp_str_to_bool(value) : FALSE);
496 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
497 break;
498 case SP_ATTR_INKSCAPE_CURRENT_LAYER:
499 nv->default_layer_id = value ? g_quark_from_string(value) : 0;
500 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
501 break;
502 case SP_ATTR_INKSCAPE_CONNECTOR_SPACING:
503 nv->connector_spacing = value ? g_ascii_strtod(value, NULL) :
504 defaultConnSpacing;
505 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
506 break;
507 case SP_ATTR_INKSCAPE_DOCUMENT_UNITS: {
508 /* The default unit if the document doesn't override this: e.g. for files saved as
509 * `plain SVG', or non-inkscape files, or files created by an inkscape 0.40 &
510 * earlier.
511 *
512 * Here we choose `px': useful for screen-destined SVGs, and fewer bug reports
513 * about "not the same numbers as what's in the SVG file" (at least for documents
514 * without a viewBox attribute on the root <svg> element). Similarly, it's also
515 * the most reliable unit (i.e. least likely to be wrong in different viewing
516 * conditions) for viewBox-less SVG files given that it's the unit that inkscape
517 * uses for all coordinates.
518 *
519 * For documents that do have a viewBox attribute on the root <svg> element, it
520 * might be better if we used either viewBox coordinates or if we used the unit of
521 * say the width attribute of the root <svg> element. However, these pose problems
522 * in that they aren't in general absolute units as currently required by
523 * doc_units.
524 */
525 SPUnit const *new_unit = &sp_unit_get_by_id(SP_UNIT_PX);
527 if (value) {
528 SPUnit const *const req_unit = sp_unit_get_by_abbreviation(value);
529 if ( req_unit == NULL ) {
530 g_warning("Unrecognized unit `%s'", value);
531 /* fixme: Document errors should be reported in the status bar or
532 * the like (e.g. as per
533 * http://www.w3.org/TR/SVG11/implnote.html#ErrorProcessing); g_log
534 * should be only for programmer errors. */
535 } else if ( req_unit->base == SP_UNIT_ABSOLUTE ||
536 req_unit->base == SP_UNIT_DEVICE ) {
537 new_unit = req_unit;
538 } else {
539 g_warning("Document units must be absolute like `mm', `pt' or `px', but found `%s'",
540 value);
541 /* fixme: Don't use g_log (see above). */
542 }
543 }
544 nv->doc_units = new_unit;
545 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
546 break;
547 }
548 default:
549 if (((SPObjectClass *) (parent_class))->set) {
550 ((SPObjectClass *) (parent_class))->set(object, key, value);
551 }
552 break;
553 }
554 }
556 /**
557 * 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,
558 * otherwise only add it to the specified desktop.
559 */
560 static Inkscape::CanvasGrid*
561 sp_namedview_add_grid(SPNamedView *nv, Inkscape::XML::Node *repr, SPDesktop *desktop) {
562 Inkscape::CanvasGrid* grid = NULL;
563 //check if namedview already has an object for this grid
564 for (GSList *l = nv->grids; l != NULL; l = l->next) {
565 Inkscape::CanvasGrid* g = (Inkscape::CanvasGrid*) l->data;
566 if (repr == g->repr) {
567 grid = g;
568 break;
569 }
570 }
572 if (!grid) {
573 //create grid object
574 Inkscape::GridType gridtype = Inkscape::CanvasGrid::getGridTypeFromSVGName(repr->attribute("type"));
575 SPDocument *doc = NULL;
576 if (desktop)
577 doc = sp_desktop_document(desktop);
578 else
579 doc = sp_desktop_document(static_cast<SPDesktop*>(nv->views->data));
580 if (!doc) {
581 g_warning("sp_namedview_add_grid - how come doc is null here?!");
582 return NULL;
583 }
584 grid = Inkscape::CanvasGrid::NewGrid(nv, repr, doc, gridtype);
585 nv->grids = g_slist_append(nv->grids, grid);
586 //Initialize the snapping parameters for the new grid
587 bool enabled_node = nv->snap_manager.getSnapModeNode();
588 bool enabled_bbox = nv->snap_manager.getSnapModeBBox();
589 grid->snapper->setSnapFrom(Inkscape::Snapper::SNAPPOINT_NODE, enabled_node);
590 grid->snapper->setSnapFrom(Inkscape::Snapper::SNAPPOINT_BBOX, enabled_bbox);
591 }
593 if (!desktop) {
594 //add canvasitem to all desktops
595 for (GSList *l = nv->views; l != NULL; l = l->next) {
596 SPDesktop *dt = static_cast<SPDesktop*>(l->data);
597 grid->createCanvasItem(dt);
598 }
599 } else {
600 //add canvasitem only for specified desktop
601 grid->createCanvasItem(desktop);
602 }
604 return grid;
605 }
607 static void sp_namedview_child_added(SPObject *object, Inkscape::XML::Node *child, Inkscape::XML::Node *ref)
608 {
609 SPNamedView *nv = (SPNamedView *) object;
611 if (((SPObjectClass *) (parent_class))->child_added) {
612 (* ((SPObjectClass *) (parent_class))->child_added)(object, child, ref);
613 }
615 if (!strcmp(child->name(), "inkscape:grid")) {
616 sp_namedview_add_grid(nv, child, NULL);
617 } else {
618 SPObject *no = object->document->getObjectByRepr(child);
619 if ( !SP_IS_OBJECT(no) )
620 return;
622 if (SP_IS_GUIDE(no)) {
623 SPGuide *g = (SPGuide *) no;
624 nv->guides = g_slist_prepend(nv->guides, g);
625 g_object_set(G_OBJECT(g), "color", nv->guidecolor, "hicolor", nv->guidehicolor, NULL);
626 if (nv->editable) {
627 for (GSList *l = nv->views; l != NULL; l = l->next) {
628 sp_guide_show(g, static_cast<SPDesktop*>(l->data)->guides, (GCallback) sp_dt_guide_event);
629 if (static_cast<SPDesktop*>(l->data)->guides_active)
630 sp_guide_sensitize(g,
631 sp_desktop_canvas(static_cast<SPDesktop*> (l->data)),
632 TRUE);
633 if (nv->showguides) {
634 for (GSList *v = SP_GUIDE(g)->views; v != NULL; v = v->next) {
635 sp_canvas_item_show(SP_CANVAS_ITEM(v->data));
636 }
637 } else {
638 for (GSList *v = SP_GUIDE(g)->views; v != NULL; v = v->next) {
639 sp_canvas_item_hide(SP_CANVAS_ITEM(v->data));
640 }
641 }
642 }
643 }
644 }
645 }
646 }
648 static void sp_namedview_remove_child(SPObject *object, Inkscape::XML::Node *child)
649 {
650 SPNamedView *nv = (SPNamedView *) object;
652 if (!strcmp(child->name(), "inkscape:grid")) {
653 for ( GSList *iter = nv->grids ; iter ; iter = iter->next ) {
654 Inkscape::CanvasGrid *gr = (Inkscape::CanvasGrid *)iter->data;
655 if ( gr->repr == child ) {
656 delete gr;
657 nv->grids = g_slist_remove_link(nv->grids, iter);
658 break;
659 }
660 }
661 } else {
662 GSList **ref = &nv->guides;
663 for ( GSList *iter = nv->guides ; iter ; iter = iter->next ) {
664 if ( SP_OBJECT_REPR((SPObject *)iter->data) == child ) {
665 *ref = iter->next;
666 iter->next = NULL;
667 g_slist_free_1(iter);
668 break;
669 }
670 ref = &iter->next;
671 }
672 }
674 if (((SPObjectClass *) (parent_class))->remove_child) {
675 (* ((SPObjectClass *) (parent_class))->remove_child)(object, child);
676 }
677 }
679 static Inkscape::XML::Node *sp_namedview_write(SPObject *object, Inkscape::XML::Node *repr, guint flags)
680 {
681 if ( ( flags & SP_OBJECT_WRITE_EXT ) &&
682 repr != SP_OBJECT_REPR(object) )
683 {
684 if (repr) {
685 repr->mergeFrom(SP_OBJECT_REPR(object), "id");
686 } else {
687 /// \todo FIXME: Plumb an appropriate XML::Document into this
688 repr = SP_OBJECT_REPR(object)->duplicate(NULL);
689 }
690 }
692 return repr;
693 }
695 void SPNamedView::show(SPDesktop *desktop)
696 {
697 for (GSList *l = guides; l != NULL; l = l->next) {
698 sp_guide_show(SP_GUIDE(l->data), desktop->guides, (GCallback) sp_dt_guide_event);
699 if (desktop->guides_active) {
700 sp_guide_sensitize(SP_GUIDE(l->data), sp_desktop_canvas(desktop), TRUE);
701 }
702 if (showguides) {
703 for (GSList *v = SP_GUIDE(l->data)->views; v != NULL; v = v->next) {
704 sp_canvas_item_show(SP_CANVAS_ITEM(v->data));
705 }
706 } else {
707 for (GSList *v = SP_GUIDE(l->data)->views; v != NULL; v = v->next) {
708 sp_canvas_item_hide(SP_CANVAS_ITEM(v->data));
709 }
710 }
711 }
713 views = g_slist_prepend(views, desktop);
715 // generate grids specified in SVG:
716 Inkscape::XML::Node *repr = SP_OBJECT_REPR(this);
717 if (repr) {
718 for (Inkscape::XML::Node * child = repr->firstChild() ; child != NULL; child = child->next() ) {
719 if (!strcmp(child->name(), "inkscape:grid")) {
720 sp_namedview_add_grid(this, child, desktop);
721 }
722 }
723 }
725 desktop->showGrids(grids_visible, false);
726 }
728 #define MIN_ONSCREEN_DISTANCE 50
730 /*
731 * Restores window geometry from the document settings or defaults in prefs
732 */
733 void sp_namedview_window_from_document(SPDesktop *desktop)
734 {
735 SPNamedView *nv = desktop->namedview;
736 gint geometry_from_file =
737 (1==prefs_get_int_attribute("options.savewindowgeometry", "value", 0));
739 // restore window size and position stored with the document
740 if (geometry_from_file) {
741 gint w = MIN(gdk_screen_width(), nv->window_width);
742 gint h = MIN(gdk_screen_height(), nv->window_height);
743 gint x = MIN(gdk_screen_width() - MIN_ONSCREEN_DISTANCE, nv->window_x);
744 gint y = MIN(gdk_screen_height() - MIN_ONSCREEN_DISTANCE, nv->window_y);
745 if (w>0 && h>0 && x>0 && y>0) {
746 x = MIN(gdk_screen_width() - w, x);
747 y = MIN(gdk_screen_height() - h, y);
748 }
749 if (w>0 && h>0) {
750 desktop->setWindowSize(w, h);
751 }
752 if (x>0 && y>0) {
753 desktop->setWindowPosition(NR::Point(x, y));
754 }
755 }
757 // restore zoom and view
758 if (nv->zoom != 0 && nv->zoom != HUGE_VAL && !isNaN(nv->zoom)
759 && nv->cx != HUGE_VAL && !isNaN(nv->cx)
760 && nv->cy != HUGE_VAL && !isNaN(nv->cy)) {
761 desktop->zoom_absolute(nv->cx, nv->cy, nv->zoom);
762 } else if (sp_desktop_document(desktop)) { // document without saved zoom, zoom to its page
763 desktop->zoom_page();
764 }
766 // cancel any history of zooms up to this point
767 if (desktop->zooms_past) {
768 g_list_free(desktop->zooms_past);
769 desktop->zooms_past = NULL;
770 }
771 }
773 void sp_namedview_update_layers_from_document (SPDesktop *desktop)
774 {
775 SPObject *layer = NULL;
776 SPDocument *document = desktop->doc();
777 SPNamedView *nv = desktop->namedview;
778 if ( nv->default_layer_id != 0 ) {
779 layer = document->getObjectById(g_quark_to_string(nv->default_layer_id));
780 }
781 // don't use that object if it's not at least group
782 if ( !layer || !SP_IS_GROUP(layer) ) {
783 layer = NULL;
784 }
785 // if that didn't work out, look for the topmost layer
786 if (!layer) {
787 SPObject *iter = sp_object_first_child(SP_DOCUMENT_ROOT(document));
788 for ( ; iter ; iter = SP_OBJECT_NEXT(iter) ) {
789 if (desktop->isLayer(iter)) {
790 layer = iter;
791 }
792 }
793 }
794 if (layer) {
795 desktop->setCurrentLayer(layer);
796 }
798 // FIXME: find a better place to do this
799 desktop->event_log->updateUndoVerbs();
800 }
802 void sp_namedview_document_from_window(SPDesktop *desktop)
803 {
804 gint save_geometry_in_file =
805 (1==prefs_get_int_attribute("options.savewindowgeometry", "value", 0));
806 Inkscape::XML::Node *view = SP_OBJECT_REPR(desktop->namedview);
807 NR::Rect const r = desktop->get_display_area();
809 // saving window geometry is not undoable
810 bool saved = sp_document_get_undo_sensitive(sp_desktop_document(desktop));
811 sp_document_set_undo_sensitive(sp_desktop_document(desktop), false);
813 sp_repr_set_svg_double(view, "inkscape:zoom", desktop->current_zoom());
814 sp_repr_set_svg_double(view, "inkscape:cx", r.midpoint()[NR::X]);
815 sp_repr_set_svg_double(view, "inkscape:cy", r.midpoint()[NR::Y]);
817 if (save_geometry_in_file) {
818 gint w, h, x, y;
819 desktop->getWindowGeometry(x, y, w, h);
820 sp_repr_set_int(view, "inkscape:window-width", w);
821 sp_repr_set_int(view, "inkscape:window-height", h);
822 sp_repr_set_int(view, "inkscape:window-x", x);
823 sp_repr_set_int(view, "inkscape:window-y", y);
824 }
826 view->setAttribute("inkscape:current-layer", SP_OBJECT_ID(desktop->currentLayer()));
828 // restore undoability
829 sp_document_set_undo_sensitive(sp_desktop_document(desktop), saved);
830 }
832 void SPNamedView::hide(SPDesktop const *desktop)
833 {
834 g_assert(desktop != NULL);
835 g_assert(g_slist_find(views, desktop));
837 for (GSList *l = guides; l != NULL; l = l->next) {
838 sp_guide_hide(SP_GUIDE(l->data), sp_desktop_canvas(desktop));
839 }
841 views = g_slist_remove(views, desktop);
842 }
844 void SPNamedView::activateGuides(gpointer desktop, gboolean active)
845 {
846 g_assert(desktop != NULL);
847 g_assert(g_slist_find(views, desktop));
849 SPDesktop *dt = static_cast<SPDesktop*>(desktop);
851 for (GSList *l = guides; l != NULL; l = l->next) {
852 sp_guide_sensitize(SP_GUIDE(l->data), sp_desktop_canvas(dt), active);
853 }
854 }
856 static void sp_namedview_setup_guides(SPNamedView *nv)
857 {
858 for (GSList *l = nv->guides; l != NULL; l = l->next) {
859 if (nv->showguides) {
860 for (GSList *v = SP_GUIDE(l->data)->views; v != NULL; v = v->next) {
861 sp_canvas_item_show(SP_CANVAS_ITEM(v->data));
862 }
863 } else {
864 for (GSList *v = SP_GUIDE(l->data)->views; v != NULL; v = v->next) {
865 sp_canvas_item_hide(SP_CANVAS_ITEM(v->data));
866 }
867 }
868 }
869 }
871 void sp_namedview_toggle_guides(SPDocument *doc, Inkscape::XML::Node *repr)
872 {
873 unsigned int v;
874 unsigned int set = sp_repr_get_boolean(repr, "showguides", &v);
875 if (!set) { // hide guides if not specified, for backwards compatibility
876 v = FALSE;
877 } else {
878 v = !v;
879 }
881 bool saved = sp_document_get_undo_sensitive(doc);
882 sp_document_set_undo_sensitive(doc, false);
883 sp_repr_set_boolean(repr, "showguides", v);
884 sp_document_set_undo_sensitive(doc, saved);
886 doc->setModifiedSinceSave();
887 }
889 void sp_namedview_show_grids(SPNamedView * namedview, bool show, bool dirty_document)
890 {
891 namedview->grids_visible = show;
893 SPDocument *doc = SP_OBJECT_DOCUMENT (namedview);
894 Inkscape::XML::Node *repr = SP_OBJECT_REPR(namedview);
896 bool saved = sp_document_get_undo_sensitive(doc);
897 sp_document_set_undo_sensitive(doc, false);
898 sp_repr_set_boolean(repr, "showgrid", namedview->grids_visible);
899 sp_document_set_undo_sensitive(doc, saved);
901 /* we don't want the document to get dirty on startup; that's when
902 we call this function with dirty_document = false */
903 if (dirty_document) {
904 doc->setModifiedSinceSave();
905 }
906 }
908 gchar const *SPNamedView::getName() const
909 {
910 SPException ex;
911 SP_EXCEPTION_INIT(&ex);
912 return sp_object_getAttribute(SP_OBJECT(this), "id", &ex);
913 }
915 guint SPNamedView::getViewCount()
916 {
917 return ++viewcount;
918 }
920 GSList const *SPNamedView::getViewList() const
921 {
922 return views;
923 }
925 /* This should be moved somewhere */
927 static gboolean sp_str_to_bool(const gchar *str)
928 {
929 if (str) {
930 if (!g_strcasecmp(str, "true") ||
931 !g_strcasecmp(str, "yes") ||
932 !g_strcasecmp(str, "y") ||
933 (atoi(str) != 0)) {
934 return TRUE;
935 }
936 }
938 return FALSE;
939 }
941 /* fixme: Collect all these length parsing methods and think common sane API */
943 static gboolean sp_nv_read_length(const gchar *str, guint base, gdouble *val, const SPUnit **unit)
944 {
945 if (!str) {
946 return FALSE;
947 }
949 gchar *u;
950 gdouble v = g_ascii_strtod(str, &u);
951 if (!u) {
952 return FALSE;
953 }
954 while (isspace(*u)) {
955 u += 1;
956 }
958 if (!*u) {
959 /* No unit specified - keep default */
960 *val = v;
961 return TRUE;
962 }
964 if (base & SP_UNIT_DEVICE) {
965 if (u[0] && u[1] && !isalnum(u[2]) && !strncmp(u, "px", 2)) {
966 *unit = &sp_unit_get_by_id(SP_UNIT_PX);
967 *val = v;
968 return TRUE;
969 }
970 }
972 if (base & SP_UNIT_ABSOLUTE) {
973 if (!strncmp(u, "pt", 2)) {
974 *unit = &sp_unit_get_by_id(SP_UNIT_PT);
975 } else if (!strncmp(u, "mm", 2)) {
976 *unit = &sp_unit_get_by_id(SP_UNIT_MM);
977 } else if (!strncmp(u, "cm", 2)) {
978 *unit = &sp_unit_get_by_id(SP_UNIT_CM);
979 } else if (!strncmp(u, "m", 1)) {
980 *unit = &sp_unit_get_by_id(SP_UNIT_M);
981 } else if (!strncmp(u, "in", 2)) {
982 *unit = &sp_unit_get_by_id(SP_UNIT_IN);
983 } else {
984 return FALSE;
985 }
986 *val = v;
987 return TRUE;
988 }
990 return FALSE;
991 }
993 static gboolean sp_nv_read_opacity(const gchar *str, guint32 *color)
994 {
995 if (!str) {
996 return FALSE;
997 }
999 gchar *u;
1000 gdouble v = g_ascii_strtod(str, &u);
1001 if (!u) {
1002 return FALSE;
1003 }
1004 v = CLAMP(v, 0.0, 1.0);
1006 *color = (*color & 0xffffff00) | (guint32) floor(v * 255.9999);
1008 return TRUE;
1009 }
1011 SPNamedView *sp_document_namedview(SPDocument *document, const gchar *id)
1012 {
1013 g_return_val_if_fail(document != NULL, NULL);
1015 SPObject *nv = sp_item_group_get_child_by_name((SPGroup *) document->root, NULL, "sodipodi:namedview");
1016 g_assert(nv != NULL);
1018 if (id == NULL) {
1019 return (SPNamedView *) nv;
1020 }
1022 while (nv && strcmp(nv->id, id)) {
1023 nv = sp_item_group_get_child_by_name((SPGroup *) document->root, nv, "sodipodi:namedview");
1024 }
1026 return (SPNamedView *) nv;
1027 }
1029 /**
1030 * Returns namedview's default metric.
1031 */
1032 SPMetric SPNamedView::getDefaultMetric() const
1033 {
1034 if (doc_units) {
1035 return sp_unit_get_metric(doc_units);
1036 } else {
1037 return SP_PT;
1038 }
1039 }
1041 /**
1042 * Returns the first grid it could find that isEnabled(). Returns NULL, if none is enabled
1043 */
1044 Inkscape::CanvasGrid * sp_namedview_get_first_enabled_grid(SPNamedView *namedview)
1045 {
1046 for (GSList const * l = namedview->grids; l != NULL; l = l->next) {
1047 Inkscape::CanvasGrid * grid = (Inkscape::CanvasGrid*) l->data;
1048 if (grid->isEnabled())
1049 return grid;
1050 }
1052 return NULL;
1053 }
1056 /*
1057 Local Variables:
1058 mode:c++
1059 c-file-style:"stroustrup"
1060 c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
1061 indent-tabs-mode:nil
1062 fill-column:99
1063 End:
1064 */
1065 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=99 :