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) 1999-2008 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.
38 #define DEFAULTTOLERANCE 0.4
39 #define DEFAULTGRIDCOLOR 0x3f3fff25
40 #define DEFAULTGRIDEMPCOLOR 0x3f3fff60
41 #define DEFAULTGRIDEMPSPACING 5
42 #define DEFAULTGUIDECOLOR 0x0000ff7f
43 #define DEFAULTGUIDEHICOLOR 0xff00007f
44 #define DEFAULTBORDERCOLOR 0x000000ff
45 #define DEFAULTPAGECOLOR 0xffffff00
47 static void sp_namedview_class_init(SPNamedViewClass *klass);
48 static void sp_namedview_init(SPNamedView *namedview);
50 static void sp_namedview_build(SPObject *object, SPDocument *document, Inkscape::XML::Node *repr);
51 static void sp_namedview_release(SPObject *object);
52 static void sp_namedview_set(SPObject *object, unsigned int key, const gchar *value);
53 static void sp_namedview_child_added(SPObject *object, Inkscape::XML::Node *child, Inkscape::XML::Node *ref);
54 static void sp_namedview_remove_child(SPObject *object, Inkscape::XML::Node *child);
55 static Inkscape::XML::Node *sp_namedview_write(SPObject *object, Inkscape::XML::Document *doc, Inkscape::XML::Node *repr, guint flags);
57 static void sp_namedview_setup_guides(SPNamedView * nv);
59 static gboolean sp_str_to_bool(const gchar *str);
60 static gboolean sp_nv_read_length(const gchar *str, guint base, gdouble *val, const SPUnit **unit);
61 static gboolean sp_nv_read_opacity(const gchar *str, guint32 *color);
63 static SPObjectGroupClass * parent_class;
65 GType
66 sp_namedview_get_type()
67 {
68 static GType namedview_type = 0;
69 if (!namedview_type) {
70 GTypeInfo namedview_info = {
71 sizeof(SPNamedViewClass),
72 NULL, /* base_init */
73 NULL, /* base_finalize */
74 (GClassInitFunc) sp_namedview_class_init,
75 NULL, /* class_finalize */
76 NULL, /* class_data */
77 sizeof(SPNamedView),
78 16, /* n_preallocs */
79 (GInstanceInitFunc) sp_namedview_init,
80 NULL, /* value_table */
81 };
82 namedview_type = g_type_register_static(SP_TYPE_OBJECTGROUP, "SPNamedView", &namedview_info, (GTypeFlags)0);
83 }
84 return namedview_type;
85 }
87 static void sp_namedview_class_init(SPNamedViewClass * klass)
88 {
89 GObjectClass * gobject_class;
90 SPObjectClass * sp_object_class;
92 gobject_class = (GObjectClass *) klass;
93 sp_object_class = (SPObjectClass *) klass;
95 parent_class = (SPObjectGroupClass*) g_type_class_ref(SP_TYPE_OBJECTGROUP);
97 sp_object_class->build = sp_namedview_build;
98 sp_object_class->release = sp_namedview_release;
99 sp_object_class->set = sp_namedview_set;
100 sp_object_class->child_added = sp_namedview_child_added;
101 sp_object_class->remove_child = sp_namedview_remove_child;
102 sp_object_class->write = sp_namedview_write;
103 }
105 static void sp_namedview_init(SPNamedView *nv)
106 {
107 nv->editable = TRUE;
108 nv->showguides = TRUE;
109 nv->grids_visible = false;
110 nv->showborder = TRUE;
111 nv->showpageshadow = TRUE;
113 nv->guides = NULL;
114 nv->viewcount = 0;
115 nv->grids = NULL;
116 nv->snapindicator = false;
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-indicator");
250 sp_object_read_attr(object, "inkscape:snap-bbox");
251 sp_object_read_attr(object, "inkscape:snap-nodes");
252 sp_object_read_attr(object, "inkscape:snap-guide");
253 sp_object_read_attr(object, "inkscape:snap-center");
254 sp_object_read_attr(object, "inkscape:snap-intersection-grid-guide");
255 sp_object_read_attr(object, "inkscape:snap-intersection-line-segments");
256 sp_object_read_attr(object, "inkscape:object-paths");
257 sp_object_read_attr(object, "inkscape:object-nodes");
258 sp_object_read_attr(object, "inkscape:bbox-paths");
259 sp_object_read_attr(object, "inkscape:bbox-nodes");
260 sp_object_read_attr(object, "inkscape:snap-page");
261 sp_object_read_attr(object, "inkscape:current-layer");
262 sp_object_read_attr(object, "inkscape:connector-spacing");
264 /* Construct guideline list */
265 for (SPObject *o = sp_object_first_child(SP_OBJECT(og)) ; o != NULL; o = SP_OBJECT_NEXT(o) ) {
266 if (SP_IS_GUIDE(o)) {
267 SPGuide * g = SP_GUIDE(o);
268 nv->guides = g_slist_prepend(nv->guides, g);
269 g_object_set(G_OBJECT(g), "color", nv->guidecolor, "hicolor", nv->guidehicolor, NULL);
270 }
271 }
273 // backwards compatibility with grid settings (pre 0.46)
274 sp_namedview_generate_old_grid(nv, document, repr);
275 }
277 static void sp_namedview_release(SPObject *object)
278 {
279 SPNamedView *namedview = (SPNamedView *) object;
281 if (namedview->guides) {
282 g_slist_free(namedview->guides);
283 namedview->guides = NULL;
284 }
286 // delete grids:
287 while ( namedview->grids ) {
288 Inkscape::CanvasGrid *gr = (Inkscape::CanvasGrid *)namedview->grids->data; // get first entry
289 delete gr;
290 namedview->grids = g_slist_remove_link(namedview->grids, namedview->grids); // deletes first entry
291 }
293 if (((SPObjectClass *) parent_class)->release) {
294 ((SPObjectClass *) parent_class)->release(object);
295 }
297 namedview->snap_manager.~SnapManager();
298 }
300 static void sp_namedview_set(SPObject *object, unsigned int key, const gchar *value)
301 {
302 SPNamedView *nv = SP_NAMEDVIEW(object);
303 SPUnit const &px = sp_unit_get_by_id(SP_UNIT_PX);
305 switch (key) {
306 case SP_ATTR_VIEWONLY:
307 nv->editable = (!value);
308 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
309 break;
310 case SP_ATTR_SHOWGUIDES:
311 if (!value) { // show guides if not specified, for backwards compatibility
312 nv->showguides = TRUE;
313 } else {
314 nv->showguides = sp_str_to_bool(value);
315 }
316 sp_namedview_setup_guides(nv);
317 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
318 break;
319 case SP_ATTR_SHOWGRIDS:
320 if (!value) { // don't show grids if not specified, for backwards compatibility
321 nv->grids_visible = false;
322 } else {
323 nv->grids_visible = sp_str_to_bool(value);
324 }
325 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
326 break;
327 case SP_ATTR_GRIDTOLERANCE:
328 nv->gridtoleranceunit = &px;
329 nv->gridtolerance = DEFAULTTOLERANCE;
330 if (value) {
331 sp_nv_read_length(value, SP_UNIT_ABSOLUTE | SP_UNIT_DEVICE, &nv->gridtolerance, &nv->gridtoleranceunit);
332 }
333 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
334 break;
335 case SP_ATTR_GUIDETOLERANCE:
336 nv->guidetoleranceunit = &px;
337 nv->guidetolerance = DEFAULTTOLERANCE;
338 if (value) {
339 sp_nv_read_length(value, SP_UNIT_ABSOLUTE | SP_UNIT_DEVICE, &nv->guidetolerance, &nv->guidetoleranceunit);
340 }
341 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
342 break;
343 case SP_ATTR_OBJECTTOLERANCE:
344 nv->objecttoleranceunit = &px;
345 nv->objecttolerance = DEFAULTTOLERANCE;
346 if (value) {
347 sp_nv_read_length(value, SP_UNIT_ABSOLUTE | SP_UNIT_DEVICE, &nv->objecttolerance, &nv->objecttoleranceunit);
348 }
349 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
350 break;
351 case SP_ATTR_GUIDECOLOR:
352 nv->guidecolor = (nv->guidecolor & 0xff) | (DEFAULTGUIDECOLOR & 0xffffff00);
353 if (value) {
354 nv->guidecolor = (nv->guidecolor & 0xff) | sp_svg_read_color(value, nv->guidecolor);
355 }
356 for (GSList *l = nv->guides; l != NULL; l = l->next) {
357 g_object_set(G_OBJECT(l->data), "color", nv->guidecolor, NULL);
358 }
359 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
360 break;
361 case SP_ATTR_GUIDEOPACITY:
362 nv->guidecolor = (nv->guidecolor & 0xffffff00) | (DEFAULTGUIDECOLOR & 0xff);
363 sp_nv_read_opacity(value, &nv->guidecolor);
364 for (GSList *l = nv->guides; l != NULL; l = l->next) {
365 g_object_set(G_OBJECT(l->data), "color", nv->guidecolor, NULL);
366 }
367 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
368 break;
369 case SP_ATTR_GUIDEHICOLOR:
370 nv->guidehicolor = (nv->guidehicolor & 0xff) | (DEFAULTGUIDEHICOLOR & 0xffffff00);
371 if (value) {
372 nv->guidehicolor = (nv->guidehicolor & 0xff) | sp_svg_read_color(value, nv->guidehicolor);
373 }
374 for (GSList *l = nv->guides; l != NULL; l = l->next) {
375 g_object_set(G_OBJECT(l->data), "hicolor", nv->guidehicolor, NULL);
376 }
377 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
378 break;
379 case SP_ATTR_GUIDEHIOPACITY:
380 nv->guidehicolor = (nv->guidehicolor & 0xffffff00) | (DEFAULTGUIDEHICOLOR & 0xff);
381 sp_nv_read_opacity(value, &nv->guidehicolor);
382 for (GSList *l = nv->guides; l != NULL; l = l->next) {
383 g_object_set(G_OBJECT(l->data), "hicolor", nv->guidehicolor, NULL);
384 }
385 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
386 break;
387 case SP_ATTR_SHOWBORDER:
388 nv->showborder = (value) ? sp_str_to_bool (value) : TRUE;
389 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
390 break;
391 case SP_ATTR_BORDERLAYER:
392 nv->borderlayer = SP_BORDER_LAYER_BOTTOM;
393 if (value && !strcasecmp(value, "true")) nv->borderlayer = SP_BORDER_LAYER_TOP;
394 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
395 break;
396 case SP_ATTR_BORDERCOLOR:
397 nv->bordercolor = (nv->bordercolor & 0xff) | (DEFAULTBORDERCOLOR & 0xffffff00);
398 if (value) {
399 nv->bordercolor = (nv->bordercolor & 0xff) | sp_svg_read_color (value, nv->bordercolor);
400 }
401 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
402 break;
403 case SP_ATTR_BORDEROPACITY:
404 nv->bordercolor = (nv->bordercolor & 0xffffff00) | (DEFAULTBORDERCOLOR & 0xff);
405 sp_nv_read_opacity(value, &nv->bordercolor);
406 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
407 break;
408 case SP_ATTR_PAGECOLOR:
409 nv->pagecolor = (nv->pagecolor & 0xff) | (DEFAULTPAGECOLOR & 0xffffff00);
410 if (value) {
411 nv->pagecolor = (nv->pagecolor & 0xff) | sp_svg_read_color(value, nv->pagecolor);
412 }
413 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
414 break;
415 case SP_ATTR_INKSCAPE_PAGEOPACITY:
416 nv->pagecolor = (nv->pagecolor & 0xffffff00) | (DEFAULTPAGECOLOR & 0xff);
417 sp_nv_read_opacity(value, &nv->pagecolor);
418 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
419 break;
420 case SP_ATTR_INKSCAPE_PAGESHADOW:
421 nv->pageshadow = value? atoi(value) : 2; // 2 is the default
422 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
423 break;
424 case SP_ATTR_SHOWPAGESHADOW:
425 nv->showpageshadow = (value) ? sp_str_to_bool(value) : TRUE;
426 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
427 break;
428 case SP_ATTR_INKSCAPE_ZOOM:
429 nv->zoom = value ? g_ascii_strtod(value, NULL) : 0; // zero means not set
430 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
431 break;
432 case SP_ATTR_INKSCAPE_CX:
433 nv->cx = 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_CY:
437 nv->cy = value ? g_ascii_strtod(value, NULL) : HUGE_VAL; // HUGE_VAL means not set
438 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
439 break;
440 case SP_ATTR_INKSCAPE_WINDOW_WIDTH:
441 nv->window_width = value? atoi(value) : -1; // -1 means not set
442 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
443 break;
444 case SP_ATTR_INKSCAPE_WINDOW_HEIGHT:
445 nv->window_height = value ? atoi(value) : -1; // -1 means not set
446 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
447 break;
448 case SP_ATTR_INKSCAPE_WINDOW_X:
449 nv->window_x = value ? atoi(value) : -1; // -1 means not set
450 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
451 break;
452 case SP_ATTR_INKSCAPE_WINDOW_Y:
453 nv->window_y = value ? atoi(value) : -1; // -1 means not set
454 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
455 break;
456 case SP_ATTR_INKSCAPE_SNAP_GLOBAL:
457 nv->snap_manager.setSnapEnabledGlobally(value ? sp_str_to_bool(value) : TRUE);
458 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
459 break;
460 case SP_ATTR_INKSCAPE_SNAP_INDICATOR:
461 nv->snapindicator = (value) ? sp_str_to_bool (value) : TRUE;
462 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
463 break;
464 case SP_ATTR_INKSCAPE_SNAP_BBOX:
465 nv->snap_manager.setSnapModeBBox(value ? sp_str_to_bool(value) : FALSE);
466 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
467 break;
468 case SP_ATTR_INKSCAPE_SNAP_NODES:
469 nv->snap_manager.setSnapModeNode(value ? sp_str_to_bool(value) : TRUE);
470 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
471 break;
472 case SP_ATTR_INKSCAPE_SNAP_CENTER:
473 nv->snap_manager.setIncludeItemCenter(value ? sp_str_to_bool(value) : FALSE);
474 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
475 break;
476 case SP_ATTR_INKSCAPE_SNAP_GUIDE:
477 nv->snap_manager.setSnapModeGuide(value ? sp_str_to_bool(value) : FALSE);
478 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
479 break;
480 case SP_ATTR_INKSCAPE_SNAP_INTERS_GRIDGUIDE:
481 nv->snap_manager.setSnapIntersectionGG(value ? sp_str_to_bool(value) : TRUE);
482 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
483 break;
484 case SP_ATTR_INKSCAPE_SNAP_INTERS_LINESEGM:
485 nv->snap_manager.setSnapIntersectionLS(value ? sp_str_to_bool(value) : FALSE);
486 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
487 break;
488 case SP_ATTR_INKSCAPE_OBJECT_PATHS:
489 nv->snap_manager.object.setSnapToItemPath(value ? sp_str_to_bool(value) : FALSE);
490 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
491 break;
492 case SP_ATTR_INKSCAPE_OBJECT_NODES:
493 nv->snap_manager.object.setSnapToItemNode(value ? sp_str_to_bool(value) : FALSE);
494 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
495 break;
496 case SP_ATTR_INKSCAPE_BBOX_PATHS:
497 nv->snap_manager.object.setSnapToBBoxPath(value ? sp_str_to_bool(value) : FALSE);
498 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
499 break;
500 case SP_ATTR_INKSCAPE_BBOX_NODES:
501 nv->snap_manager.object.setSnapToBBoxNode(value ? sp_str_to_bool(value) : FALSE);
502 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
503 break;
504 case SP_ATTR_INKSCAPE_SNAP_PAGE:
505 nv->snap_manager.object.setSnapToPageBorder(value ? sp_str_to_bool(value) : FALSE);
506 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
507 break;
508 case SP_ATTR_INKSCAPE_CURRENT_LAYER:
509 nv->default_layer_id = value ? g_quark_from_string(value) : 0;
510 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
511 break;
512 case SP_ATTR_INKSCAPE_CONNECTOR_SPACING:
513 nv->connector_spacing = value ? g_ascii_strtod(value, NULL) :
514 defaultConnSpacing;
515 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
516 break;
517 case SP_ATTR_INKSCAPE_DOCUMENT_UNITS: {
518 /* The default unit if the document doesn't override this: e.g. for files saved as
519 * `plain SVG', or non-inkscape files, or files created by an inkscape 0.40 &
520 * earlier.
521 *
522 * Here we choose `px': useful for screen-destined SVGs, and fewer bug reports
523 * about "not the same numbers as what's in the SVG file" (at least for documents
524 * without a viewBox attribute on the root <svg> element). Similarly, it's also
525 * the most reliable unit (i.e. least likely to be wrong in different viewing
526 * conditions) for viewBox-less SVG files given that it's the unit that inkscape
527 * uses for all coordinates.
528 *
529 * For documents that do have a viewBox attribute on the root <svg> element, it
530 * might be better if we used either viewBox coordinates or if we used the unit of
531 * say the width attribute of the root <svg> element. However, these pose problems
532 * in that they aren't in general absolute units as currently required by
533 * doc_units.
534 */
535 SPUnit const *new_unit = &sp_unit_get_by_id(SP_UNIT_PX);
537 if (value) {
538 SPUnit const *const req_unit = sp_unit_get_by_abbreviation(value);
539 if ( req_unit == NULL ) {
540 g_warning("Unrecognized unit `%s'", value);
541 /* fixme: Document errors should be reported in the status bar or
542 * the like (e.g. as per
543 * http://www.w3.org/TR/SVG11/implnote.html#ErrorProcessing); g_log
544 * should be only for programmer errors. */
545 } else if ( req_unit->base == SP_UNIT_ABSOLUTE ||
546 req_unit->base == SP_UNIT_DEVICE ) {
547 new_unit = req_unit;
548 } else {
549 g_warning("Document units must be absolute like `mm', `pt' or `px', but found `%s'",
550 value);
551 /* fixme: Don't use g_log (see above). */
552 }
553 }
554 nv->doc_units = new_unit;
555 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
556 break;
557 }
558 default:
559 if (((SPObjectClass *) (parent_class))->set) {
560 ((SPObjectClass *) (parent_class))->set(object, key, value);
561 }
562 break;
563 }
564 }
566 /**
567 * 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,
568 * otherwise only add it to the specified desktop.
569 */
570 static Inkscape::CanvasGrid*
571 sp_namedview_add_grid(SPNamedView *nv, Inkscape::XML::Node *repr, SPDesktop *desktop) {
572 Inkscape::CanvasGrid* grid = NULL;
573 //check if namedview already has an object for this grid
574 for (GSList *l = nv->grids; l != NULL; l = l->next) {
575 Inkscape::CanvasGrid* g = (Inkscape::CanvasGrid*) l->data;
576 if (repr == g->repr) {
577 grid = g;
578 break;
579 }
580 }
582 if (!grid) {
583 //create grid object
584 Inkscape::GridType gridtype = Inkscape::CanvasGrid::getGridTypeFromSVGName(repr->attribute("type"));
585 SPDocument *doc = NULL;
586 if (desktop)
587 doc = sp_desktop_document(desktop);
588 else
589 doc = sp_desktop_document(static_cast<SPDesktop*>(nv->views->data));
590 if (!doc) {
591 g_warning("sp_namedview_add_grid - how come doc is null here?!");
592 return NULL;
593 }
594 grid = Inkscape::CanvasGrid::NewGrid(nv, repr, doc, gridtype);
595 nv->grids = g_slist_append(nv->grids, grid);
596 //Initialize the snapping parameters for the new grid
597 bool enabled_node = nv->snap_manager.getSnapModeNode();
598 bool enabled_bbox = nv->snap_manager.getSnapModeBBox();
599 grid->snapper->setSnapFrom(Inkscape::Snapper::SNAPPOINT_NODE, enabled_node);
600 grid->snapper->setSnapFrom(Inkscape::Snapper::SNAPPOINT_BBOX, enabled_bbox);
601 }
603 if (!desktop) {
604 //add canvasitem to all desktops
605 for (GSList *l = nv->views; l != NULL; l = l->next) {
606 SPDesktop *dt = static_cast<SPDesktop*>(l->data);
607 grid->createCanvasItem(dt);
608 }
609 } else {
610 //add canvasitem only for specified desktop
611 grid->createCanvasItem(desktop);
612 }
614 return grid;
615 }
617 static void sp_namedview_child_added(SPObject *object, Inkscape::XML::Node *child, Inkscape::XML::Node *ref)
618 {
619 SPNamedView *nv = (SPNamedView *) object;
621 if (((SPObjectClass *) (parent_class))->child_added) {
622 (* ((SPObjectClass *) (parent_class))->child_added)(object, child, ref);
623 }
625 if (!strcmp(child->name(), "inkscape:grid")) {
626 sp_namedview_add_grid(nv, child, NULL);
627 } else {
628 SPObject *no = object->document->getObjectByRepr(child);
629 if ( !SP_IS_OBJECT(no) )
630 return;
632 if (SP_IS_GUIDE(no)) {
633 SPGuide *g = (SPGuide *) no;
634 nv->guides = g_slist_prepend(nv->guides, g);
635 g_object_set(G_OBJECT(g), "color", nv->guidecolor, "hicolor", nv->guidehicolor, NULL);
636 if (nv->editable) {
637 for (GSList *l = nv->views; l != NULL; l = l->next) {
638 sp_guide_show(g, static_cast<SPDesktop*>(l->data)->guides, (GCallback) sp_dt_guide_event);
639 if (static_cast<SPDesktop*>(l->data)->guides_active)
640 sp_guide_sensitize(g,
641 sp_desktop_canvas(static_cast<SPDesktop*> (l->data)),
642 TRUE);
643 if (nv->showguides) {
644 for (GSList *v = SP_GUIDE(g)->views; v != NULL; v = v->next) {
645 sp_canvas_item_show(SP_CANVAS_ITEM(v->data));
646 }
647 } else {
648 for (GSList *v = SP_GUIDE(g)->views; v != NULL; v = v->next) {
649 sp_canvas_item_hide(SP_CANVAS_ITEM(v->data));
650 }
651 }
652 }
653 }
654 }
655 }
656 }
658 static void sp_namedview_remove_child(SPObject *object, Inkscape::XML::Node *child)
659 {
660 SPNamedView *nv = (SPNamedView *) object;
662 if (!strcmp(child->name(), "inkscape:grid")) {
663 for ( GSList *iter = nv->grids ; iter ; iter = iter->next ) {
664 Inkscape::CanvasGrid *gr = (Inkscape::CanvasGrid *)iter->data;
665 if ( gr->repr == child ) {
666 delete gr;
667 nv->grids = g_slist_remove_link(nv->grids, iter);
668 break;
669 }
670 }
671 } else {
672 GSList **ref = &nv->guides;
673 for ( GSList *iter = nv->guides ; iter ; iter = iter->next ) {
674 if ( SP_OBJECT_REPR((SPObject *)iter->data) == child ) {
675 *ref = iter->next;
676 iter->next = NULL;
677 g_slist_free_1(iter);
678 break;
679 }
680 ref = &iter->next;
681 }
682 }
684 if (((SPObjectClass *) (parent_class))->remove_child) {
685 (* ((SPObjectClass *) (parent_class))->remove_child)(object, child);
686 }
687 }
689 static Inkscape::XML::Node *sp_namedview_write(SPObject *object, Inkscape::XML::Document *doc, Inkscape::XML::Node *repr, guint flags)
690 {
691 if ( ( flags & SP_OBJECT_WRITE_EXT ) &&
692 repr != SP_OBJECT_REPR(object) )
693 {
694 if (repr) {
695 repr->mergeFrom(SP_OBJECT_REPR(object), "id");
696 } else {
697 repr = SP_OBJECT_REPR(object)->duplicate(doc);
698 }
699 }
701 return repr;
702 }
704 void SPNamedView::show(SPDesktop *desktop)
705 {
706 for (GSList *l = guides; l != NULL; l = l->next) {
707 sp_guide_show(SP_GUIDE(l->data), desktop->guides, (GCallback) sp_dt_guide_event);
708 if (desktop->guides_active) {
709 sp_guide_sensitize(SP_GUIDE(l->data), sp_desktop_canvas(desktop), TRUE);
710 }
711 if (showguides) {
712 for (GSList *v = SP_GUIDE(l->data)->views; v != NULL; v = v->next) {
713 sp_canvas_item_show(SP_CANVAS_ITEM(v->data));
714 }
715 } else {
716 for (GSList *v = SP_GUIDE(l->data)->views; v != NULL; v = v->next) {
717 sp_canvas_item_hide(SP_CANVAS_ITEM(v->data));
718 }
719 }
720 }
722 views = g_slist_prepend(views, desktop);
724 // generate grids specified in SVG:
725 Inkscape::XML::Node *repr = SP_OBJECT_REPR(this);
726 if (repr) {
727 for (Inkscape::XML::Node * child = repr->firstChild() ; child != NULL; child = child->next() ) {
728 if (!strcmp(child->name(), "inkscape:grid")) {
729 sp_namedview_add_grid(this, child, desktop);
730 }
731 }
732 }
734 desktop->showGrids(grids_visible, false);
735 }
737 #define MIN_ONSCREEN_DISTANCE 50
739 /*
740 * Restores window geometry from the document settings or defaults in prefs
741 */
742 void sp_namedview_window_from_document(SPDesktop *desktop)
743 {
744 SPNamedView *nv = desktop->namedview;
745 gint geometry_from_file =
746 (1==prefs_get_int_attribute("options.savewindowgeometry", "value", 0));
748 // restore window size and position stored with the document
749 if (geometry_from_file) {
750 gint w = MIN(gdk_screen_width(), nv->window_width);
751 gint h = MIN(gdk_screen_height(), nv->window_height);
752 gint x = MIN(gdk_screen_width() - MIN_ONSCREEN_DISTANCE, nv->window_x);
753 gint y = MIN(gdk_screen_height() - MIN_ONSCREEN_DISTANCE, nv->window_y);
754 if (w>0 && h>0 && x>0 && y>0) {
755 x = MIN(gdk_screen_width() - w, x);
756 y = MIN(gdk_screen_height() - h, y);
757 }
758 if (w>0 && h>0) {
759 desktop->setWindowSize(w, h);
760 }
761 if (x>0 && y>0) {
762 desktop->setWindowPosition(NR::Point(x, y));
763 }
764 }
766 // restore zoom and view
767 if (nv->zoom != 0 && nv->zoom != HUGE_VAL && !IS_NAN(nv->zoom)
768 && nv->cx != HUGE_VAL && !IS_NAN(nv->cx)
769 && nv->cy != HUGE_VAL && !IS_NAN(nv->cy)) {
770 desktop->zoom_absolute(nv->cx, nv->cy, nv->zoom);
771 } else if (sp_desktop_document(desktop)) { // document without saved zoom, zoom to its page
772 desktop->zoom_page();
773 }
775 // cancel any history of zooms up to this point
776 if (desktop->zooms_past) {
777 g_list_free(desktop->zooms_past);
778 desktop->zooms_past = NULL;
779 }
780 }
782 void sp_namedview_update_layers_from_document (SPDesktop *desktop)
783 {
784 SPObject *layer = NULL;
785 SPDocument *document = desktop->doc();
786 SPNamedView *nv = desktop->namedview;
787 if ( nv->default_layer_id != 0 ) {
788 layer = document->getObjectById(g_quark_to_string(nv->default_layer_id));
789 }
790 // don't use that object if it's not at least group
791 if ( !layer || !SP_IS_GROUP(layer) ) {
792 layer = NULL;
793 }
794 // if that didn't work out, look for the topmost layer
795 if (!layer) {
796 SPObject *iter = sp_object_first_child(SP_DOCUMENT_ROOT(document));
797 for ( ; iter ; iter = SP_OBJECT_NEXT(iter) ) {
798 if (desktop->isLayer(iter)) {
799 layer = iter;
800 }
801 }
802 }
803 if (layer) {
804 desktop->setCurrentLayer(layer);
805 }
807 // FIXME: find a better place to do this
808 desktop->event_log->updateUndoVerbs();
809 }
811 void sp_namedview_document_from_window(SPDesktop *desktop)
812 {
813 gint save_geometry_in_file =
814 (1==prefs_get_int_attribute("options.savewindowgeometry", "value", 0));
815 Inkscape::XML::Node *view = SP_OBJECT_REPR(desktop->namedview);
816 NR::Rect const r = desktop->get_display_area();
818 // saving window geometry is not undoable
819 bool saved = sp_document_get_undo_sensitive(sp_desktop_document(desktop));
820 sp_document_set_undo_sensitive(sp_desktop_document(desktop), false);
822 sp_repr_set_svg_double(view, "inkscape:zoom", desktop->current_zoom());
823 sp_repr_set_svg_double(view, "inkscape:cx", r.midpoint()[NR::X]);
824 sp_repr_set_svg_double(view, "inkscape:cy", r.midpoint()[NR::Y]);
826 if (save_geometry_in_file) {
827 gint w, h, x, y;
828 desktop->getWindowGeometry(x, y, w, h);
829 sp_repr_set_int(view, "inkscape:window-width", w);
830 sp_repr_set_int(view, "inkscape:window-height", h);
831 sp_repr_set_int(view, "inkscape:window-x", x);
832 sp_repr_set_int(view, "inkscape:window-y", y);
833 }
835 view->setAttribute("inkscape:current-layer", SP_OBJECT_ID(desktop->currentLayer()));
837 // restore undoability
838 sp_document_set_undo_sensitive(sp_desktop_document(desktop), saved);
839 }
841 void SPNamedView::hide(SPDesktop const *desktop)
842 {
843 g_assert(desktop != NULL);
844 g_assert(g_slist_find(views, desktop));
846 for (GSList *l = guides; l != NULL; l = l->next) {
847 sp_guide_hide(SP_GUIDE(l->data), sp_desktop_canvas(desktop));
848 }
850 views = g_slist_remove(views, desktop);
851 }
853 void SPNamedView::activateGuides(gpointer desktop, gboolean active)
854 {
855 g_assert(desktop != NULL);
856 g_assert(g_slist_find(views, desktop));
858 SPDesktop *dt = static_cast<SPDesktop*>(desktop);
860 for (GSList *l = guides; l != NULL; l = l->next) {
861 sp_guide_sensitize(SP_GUIDE(l->data), sp_desktop_canvas(dt), active);
862 }
863 }
865 static void sp_namedview_setup_guides(SPNamedView *nv)
866 {
867 for (GSList *l = nv->guides; l != NULL; l = l->next) {
868 if (nv->showguides) {
869 for (GSList *v = SP_GUIDE(l->data)->views; v != NULL; v = v->next) {
870 sp_canvas_item_show(SP_CANVAS_ITEM(v->data));
871 }
872 } else {
873 for (GSList *v = SP_GUIDE(l->data)->views; v != NULL; v = v->next) {
874 sp_canvas_item_hide(SP_CANVAS_ITEM(v->data));
875 }
876 }
877 }
878 }
880 void sp_namedview_toggle_guides(SPDocument *doc, Inkscape::XML::Node *repr)
881 {
882 unsigned int v;
883 unsigned int set = sp_repr_get_boolean(repr, "showguides", &v);
884 if (!set) { // hide guides if not specified, for backwards compatibility
885 v = FALSE;
886 } else {
887 v = !v;
888 }
890 bool saved = sp_document_get_undo_sensitive(doc);
891 sp_document_set_undo_sensitive(doc, false);
892 sp_repr_set_boolean(repr, "showguides", v);
893 sp_document_set_undo_sensitive(doc, saved);
895 doc->setModifiedSinceSave();
896 }
898 void sp_namedview_show_grids(SPNamedView * namedview, bool show, bool dirty_document)
899 {
900 namedview->grids_visible = show;
902 SPDocument *doc = SP_OBJECT_DOCUMENT (namedview);
903 Inkscape::XML::Node *repr = SP_OBJECT_REPR(namedview);
905 bool saved = sp_document_get_undo_sensitive(doc);
906 sp_document_set_undo_sensitive(doc, false);
907 sp_repr_set_boolean(repr, "showgrid", namedview->grids_visible);
908 sp_document_set_undo_sensitive(doc, saved);
910 /* we don't want the document to get dirty on startup; that's when
911 we call this function with dirty_document = false */
912 if (dirty_document) {
913 doc->setModifiedSinceSave();
914 }
915 }
917 gchar const *SPNamedView::getName() const
918 {
919 SPException ex;
920 SP_EXCEPTION_INIT(&ex);
921 return sp_object_getAttribute(SP_OBJECT(this), "id", &ex);
922 }
924 guint SPNamedView::getViewCount()
925 {
926 return ++viewcount;
927 }
929 GSList const *SPNamedView::getViewList() const
930 {
931 return views;
932 }
934 /* This should be moved somewhere */
936 static gboolean sp_str_to_bool(const gchar *str)
937 {
938 if (str) {
939 if (!g_strcasecmp(str, "true") ||
940 !g_strcasecmp(str, "yes") ||
941 !g_strcasecmp(str, "y") ||
942 (atoi(str) != 0)) {
943 return TRUE;
944 }
945 }
947 return FALSE;
948 }
950 /* fixme: Collect all these length parsing methods and think common sane API */
952 static gboolean sp_nv_read_length(const gchar *str, guint base, gdouble *val, const SPUnit **unit)
953 {
954 if (!str) {
955 return FALSE;
956 }
958 gchar *u;
959 gdouble v = g_ascii_strtod(str, &u);
960 if (!u) {
961 return FALSE;
962 }
963 while (isspace(*u)) {
964 u += 1;
965 }
967 if (!*u) {
968 /* No unit specified - keep default */
969 *val = v;
970 return TRUE;
971 }
973 if (base & SP_UNIT_DEVICE) {
974 if (u[0] && u[1] && !isalnum(u[2]) && !strncmp(u, "px", 2)) {
975 *unit = &sp_unit_get_by_id(SP_UNIT_PX);
976 *val = v;
977 return TRUE;
978 }
979 }
981 if (base & SP_UNIT_ABSOLUTE) {
982 if (!strncmp(u, "pt", 2)) {
983 *unit = &sp_unit_get_by_id(SP_UNIT_PT);
984 } else if (!strncmp(u, "mm", 2)) {
985 *unit = &sp_unit_get_by_id(SP_UNIT_MM);
986 } else if (!strncmp(u, "cm", 2)) {
987 *unit = &sp_unit_get_by_id(SP_UNIT_CM);
988 } else if (!strncmp(u, "m", 1)) {
989 *unit = &sp_unit_get_by_id(SP_UNIT_M);
990 } else if (!strncmp(u, "in", 2)) {
991 *unit = &sp_unit_get_by_id(SP_UNIT_IN);
992 } else {
993 return FALSE;
994 }
995 *val = v;
996 return TRUE;
997 }
999 return FALSE;
1000 }
1002 static gboolean sp_nv_read_opacity(const gchar *str, guint32 *color)
1003 {
1004 if (!str) {
1005 return FALSE;
1006 }
1008 gchar *u;
1009 gdouble v = g_ascii_strtod(str, &u);
1010 if (!u) {
1011 return FALSE;
1012 }
1013 v = CLAMP(v, 0.0, 1.0);
1015 *color = (*color & 0xffffff00) | (guint32) floor(v * 255.9999);
1017 return TRUE;
1018 }
1020 SPNamedView *sp_document_namedview(SPDocument *document, const gchar *id)
1021 {
1022 g_return_val_if_fail(document != NULL, NULL);
1024 SPObject *nv = sp_item_group_get_child_by_name((SPGroup *) document->root, NULL, "sodipodi:namedview");
1025 g_assert(nv != NULL);
1027 if (id == NULL) {
1028 return (SPNamedView *) nv;
1029 }
1031 while (nv && strcmp(nv->id, id)) {
1032 nv = sp_item_group_get_child_by_name((SPGroup *) document->root, nv, "sodipodi:namedview");
1033 }
1035 return (SPNamedView *) nv;
1036 }
1038 /**
1039 * Returns namedview's default metric.
1040 */
1041 SPMetric SPNamedView::getDefaultMetric() const
1042 {
1043 if (doc_units) {
1044 return sp_unit_get_metric(doc_units);
1045 } else {
1046 return SP_PT;
1047 }
1048 }
1050 /**
1051 * Returns the first grid it could find that isEnabled(). Returns NULL, if none is enabled
1052 */
1053 Inkscape::CanvasGrid * sp_namedview_get_first_enabled_grid(SPNamedView *namedview)
1054 {
1055 for (GSList const * l = namedview->grids; l != NULL; l = l->next) {
1056 Inkscape::CanvasGrid * grid = (Inkscape::CanvasGrid*) l->data;
1057 if (grid->isEnabled())
1058 return grid;
1059 }
1061 return NULL;
1062 }
1064 void SPNamedView::translateGuides(NR::translate const &tr) {
1065 for (GSList *l = guides; l != NULL; l = l->next) {
1066 SPGuide &guide = *SP_GUIDE(l->data);
1067 Geom::Point point_on_line = guide.point_on_line;
1068 point_on_line[0] += tr[0];
1069 point_on_line[1] += tr[1];
1070 sp_guide_moveto(guide, point_on_line, true);
1071 }
1072 }
1074 void SPNamedView::scrollAllDesktops(double dx, double dy, bool is_scrolling) {
1075 for(GSList *l = views; l; l = l->next) {
1076 SPDesktop *desktop = static_cast<SPDesktop *>(l->data);
1077 desktop->scroll_world_in_svg_coords(dx, dy, is_scrolling);
1078 }
1079 }
1082 /*
1083 Local Variables:
1084 mode:c++
1085 c-file-style:"stroustrup"
1086 c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
1087 indent-tabs-mode:nil
1088 fill-column:99
1089 End:
1090 */
1091 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=99 :