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 "preferences.h"
34 #include "desktop.h"
35 #include "conn-avoid-ref.h" // for defaultConnSpacing.
37 #define DEFAULTGRIDCOLOR 0x3f3fff25
38 #define DEFAULTGRIDEMPCOLOR 0x3f3fff60
39 #define DEFAULTGRIDEMPSPACING 5
40 #define DEFAULTGUIDECOLOR 0x0000ff7f
41 #define DEFAULTGUIDEHICOLOR 0xff00007f
42 #define DEFAULTBORDERCOLOR 0x000000ff
43 #define DEFAULTPAGECOLOR 0xffffff00
45 static void sp_namedview_class_init(SPNamedViewClass *klass);
46 static void sp_namedview_init(SPNamedView *namedview);
48 static void sp_namedview_build(SPObject *object, SPDocument *document, Inkscape::XML::Node *repr);
49 static void sp_namedview_release(SPObject *object);
50 static void sp_namedview_set(SPObject *object, unsigned int key, const gchar *value);
51 static void sp_namedview_child_added(SPObject *object, Inkscape::XML::Node *child, Inkscape::XML::Node *ref);
52 static void sp_namedview_remove_child(SPObject *object, Inkscape::XML::Node *child);
53 static Inkscape::XML::Node *sp_namedview_write(SPObject *object, Inkscape::XML::Document *doc, Inkscape::XML::Node *repr, guint flags);
55 static void sp_namedview_setup_guides(SPNamedView * nv);
57 static gboolean sp_str_to_bool(const gchar *str);
58 static gboolean sp_nv_read_length(const gchar *str, guint base, gdouble *val, const SPUnit **unit);
59 static gboolean sp_nv_read_opacity(const gchar *str, guint32 *color);
61 static SPObjectGroupClass * parent_class;
63 GType
64 sp_namedview_get_type()
65 {
66 static GType namedview_type = 0;
67 if (!namedview_type) {
68 GTypeInfo namedview_info = {
69 sizeof(SPNamedViewClass),
70 NULL, /* base_init */
71 NULL, /* base_finalize */
72 (GClassInitFunc) sp_namedview_class_init,
73 NULL, /* class_finalize */
74 NULL, /* class_data */
75 sizeof(SPNamedView),
76 16, /* n_preallocs */
77 (GInstanceInitFunc) sp_namedview_init,
78 NULL, /* value_table */
79 };
80 namedview_type = g_type_register_static(SP_TYPE_OBJECTGROUP, "SPNamedView", &namedview_info, (GTypeFlags)0);
81 }
82 return namedview_type;
83 }
85 static void sp_namedview_class_init(SPNamedViewClass * klass)
86 {
87 GObjectClass * gobject_class;
88 SPObjectClass * sp_object_class;
90 gobject_class = (GObjectClass *) klass;
91 sp_object_class = (SPObjectClass *) klass;
93 parent_class = (SPObjectGroupClass*) g_type_class_ref(SP_TYPE_OBJECTGROUP);
95 sp_object_class->build = sp_namedview_build;
96 sp_object_class->release = sp_namedview_release;
97 sp_object_class->set = sp_namedview_set;
98 sp_object_class->child_added = sp_namedview_child_added;
99 sp_object_class->remove_child = sp_namedview_remove_child;
100 sp_object_class->write = sp_namedview_write;
101 }
103 static void sp_namedview_init(SPNamedView *nv)
104 {
105 nv->editable = TRUE;
106 nv->showguides = TRUE;
107 nv->grids_visible = false;
108 nv->showborder = TRUE;
109 nv->showpageshadow = TRUE;
111 nv->guides = NULL;
112 nv->viewcount = 0;
113 nv->grids = NULL;
115 nv->default_layer_id = 0;
117 nv->connector_spacing = defaultConnSpacing;
119 new (&nv->snap_manager) SnapManager(nv);
120 }
122 static void sp_namedview_generate_old_grid(SPNamedView * /*nv*/, SPDocument *document, Inkscape::XML::Node *repr) {
123 bool old_grid_settings_present = false;
125 // set old settings
126 const char* gridspacingx = "1px";
127 const char* gridspacingy = "1px";
128 const char* gridoriginy = "0px";
129 const char* gridoriginx = "0px";
130 const char* gridempspacing = "5";
131 const char* gridcolor = "#0000ff";
132 const char* gridempcolor = "#0000ff";
133 const char* gridopacity = "0.2";
134 const char* gridempopacity = "0.4";
136 const char* value = NULL;
137 if ((value = repr->attribute("gridoriginx"))) {
138 gridspacingx = value;
139 old_grid_settings_present = true;
140 }
141 if ((value = repr->attribute("gridoriginy"))) {
142 gridoriginy = value;
143 old_grid_settings_present = true;
144 }
145 if ((value = repr->attribute("gridspacingx"))) {
146 gridspacingx = value;
147 old_grid_settings_present = true;
148 }
149 if ((value = repr->attribute("gridspacingy"))) {
150 gridspacingy = value;
151 old_grid_settings_present = true;
152 }
153 if ((value = repr->attribute("gridcolor"))) {
154 gridcolor = value;
155 old_grid_settings_present = true;
156 }
157 if ((value = repr->attribute("gridempcolor"))) {
158 gridempcolor = value;
159 old_grid_settings_present = true;
160 }
161 if ((value = repr->attribute("gridempspacing"))) {
162 gridempspacing = value;
163 old_grid_settings_present = true;
164 }
165 if ((value = repr->attribute("gridopacity"))) {
166 gridopacity = value;
167 old_grid_settings_present = true;
168 }
169 if ((value = repr->attribute("gridempopacity"))) {
170 gridempopacity = value;
171 old_grid_settings_present = true;
172 }
174 if (old_grid_settings_present) {
175 // generate new xy grid with the correct settings
176 // 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.
178 Inkscape::XML::Document *xml_doc = sp_document_repr_doc(document);
179 Inkscape::XML::Node *newnode = xml_doc->createElement("inkscape:grid");
180 newnode->setAttribute("id", "GridFromPre046Settings");
181 newnode->setAttribute("type", Inkscape::CanvasGrid::getSVGName(Inkscape::GRID_RECTANGULAR));
182 newnode->setAttribute("originx", gridoriginx);
183 newnode->setAttribute("originy", gridoriginy);
184 newnode->setAttribute("spacingx", gridspacingx);
185 newnode->setAttribute("spacingy", gridspacingy);
186 newnode->setAttribute("color", gridcolor);
187 newnode->setAttribute("empcolor", gridempcolor);
188 newnode->setAttribute("opacity", gridopacity);
189 newnode->setAttribute("empopacity", gridempopacity);
190 newnode->setAttribute("empspacing", gridempspacing);
192 repr->appendChild(newnode);
193 Inkscape::GC::release(newnode);
195 // remove all old settings
196 repr->setAttribute("gridoriginx", NULL);
197 repr->setAttribute("gridoriginy", NULL);
198 repr->setAttribute("gridspacingx", NULL);
199 repr->setAttribute("gridspacingy", NULL);
200 repr->setAttribute("gridcolor", NULL);
201 repr->setAttribute("gridempcolor", NULL);
202 repr->setAttribute("gridopacity", NULL);
203 repr->setAttribute("gridempopacity", NULL);
204 repr->setAttribute("gridempspacing", NULL);
206 // sp_document_done(doc, SP_VERB_DIALOG_NAMEDVIEW, _("Create new grid from pre0.46 grid settings"));
207 }
208 }
210 static void sp_namedview_build(SPObject *object, SPDocument *document, Inkscape::XML::Node *repr)
211 {
212 SPNamedView *nv = (SPNamedView *) object;
213 SPObjectGroup *og = (SPObjectGroup *) object;
215 if (((SPObjectClass *) (parent_class))->build) {
216 (* ((SPObjectClass *) (parent_class))->build)(object, document, repr);
217 }
219 sp_object_read_attr(object, "inkscape:document-units");
220 sp_object_read_attr(object, "viewonly");
221 sp_object_read_attr(object, "showguides");
222 sp_object_read_attr(object, "showgrid");
223 sp_object_read_attr(object, "gridtolerance");
224 sp_object_read_attr(object, "guidetolerance");
225 sp_object_read_attr(object, "objecttolerance");
226 sp_object_read_attr(object, "guidecolor");
227 sp_object_read_attr(object, "guideopacity");
228 sp_object_read_attr(object, "guidehicolor");
229 sp_object_read_attr(object, "guidehiopacity");
230 sp_object_read_attr(object, "showborder");
231 sp_object_read_attr(object, "inkscape:showpageshadow");
232 sp_object_read_attr(object, "borderlayer");
233 sp_object_read_attr(object, "bordercolor");
234 sp_object_read_attr(object, "borderopacity");
235 sp_object_read_attr(object, "pagecolor");
236 sp_object_read_attr(object, "inkscape:pageopacity");
237 sp_object_read_attr(object, "inkscape:pageshadow");
238 sp_object_read_attr(object, "inkscape:zoom");
239 sp_object_read_attr(object, "inkscape:cx");
240 sp_object_read_attr(object, "inkscape:cy");
241 sp_object_read_attr(object, "inkscape:window-width");
242 sp_object_read_attr(object, "inkscape:window-height");
243 sp_object_read_attr(object, "inkscape:window-x");
244 sp_object_read_attr(object, "inkscape:window-y");
245 sp_object_read_attr(object, "inkscape:snap-global");
246 sp_object_read_attr(object, "inkscape:snap-bbox");
247 sp_object_read_attr(object, "inkscape:snap-nodes");
248 sp_object_read_attr(object, "inkscape:snap-guide");
249 sp_object_read_attr(object, "inkscape:snap-center");
250 sp_object_read_attr(object, "inkscape:snap-smooth-nodes");
251 sp_object_read_attr(object, "inkscape:snap-intersection-grid-guide");
252 sp_object_read_attr(object, "inkscape:snap-intersection-paths");
253 sp_object_read_attr(object, "inkscape:object-paths");
254 sp_object_read_attr(object, "inkscape:object-nodes");
255 sp_object_read_attr(object, "inkscape:bbox-paths");
256 sp_object_read_attr(object, "inkscape:bbox-nodes");
257 sp_object_read_attr(object, "inkscape:snap-page");
258 sp_object_read_attr(object, "inkscape:current-layer");
259 sp_object_read_attr(object, "inkscape:connector-spacing");
261 /* Construct guideline list */
262 for (SPObject *o = sp_object_first_child(SP_OBJECT(og)) ; o != NULL; o = SP_OBJECT_NEXT(o) ) {
263 if (SP_IS_GUIDE(o)) {
264 SPGuide * g = SP_GUIDE(o);
265 nv->guides = g_slist_prepend(nv->guides, g);
266 g_object_set(G_OBJECT(g), "color", nv->guidecolor, "hicolor", nv->guidehicolor, NULL);
267 }
268 }
270 // backwards compatibility with grid settings (pre 0.46)
271 sp_namedview_generate_old_grid(nv, document, repr);
272 }
274 static void sp_namedview_release(SPObject *object)
275 {
276 SPNamedView *namedview = (SPNamedView *) object;
278 if (namedview->guides) {
279 g_slist_free(namedview->guides);
280 namedview->guides = NULL;
281 }
283 // delete grids:
284 while ( namedview->grids ) {
285 Inkscape::CanvasGrid *gr = (Inkscape::CanvasGrid *)namedview->grids->data; // get first entry
286 delete gr;
287 namedview->grids = g_slist_remove_link(namedview->grids, namedview->grids); // deletes first entry
288 }
290 if (((SPObjectClass *) parent_class)->release) {
291 ((SPObjectClass *) parent_class)->release(object);
292 }
294 namedview->snap_manager.~SnapManager();
295 }
297 static void sp_namedview_set(SPObject *object, unsigned int key, const gchar *value)
298 {
299 SPNamedView *nv = SP_NAMEDVIEW(object);
300 SPUnit const &px = sp_unit_get_by_id(SP_UNIT_PX);
302 switch (key) {
303 case SP_ATTR_VIEWONLY:
304 nv->editable = (!value);
305 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
306 break;
307 case SP_ATTR_SHOWGUIDES:
308 if (!value) { // show guides if not specified, for backwards compatibility
309 nv->showguides = TRUE;
310 } else {
311 nv->showguides = sp_str_to_bool(value);
312 }
313 sp_namedview_setup_guides(nv);
314 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
315 break;
316 case SP_ATTR_SHOWGRIDS:
317 if (!value) { // don't show grids if not specified, for backwards compatibility
318 nv->grids_visible = false;
319 } else {
320 nv->grids_visible = sp_str_to_bool(value);
321 }
322 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
323 break;
324 case SP_ATTR_GRIDTOLERANCE:
325 nv->gridtoleranceunit = &px;
326 nv->gridtolerance = 10000;
327 if (value) {
328 sp_nv_read_length(value, SP_UNIT_ABSOLUTE | SP_UNIT_DEVICE, &nv->gridtolerance, &nv->gridtoleranceunit);
329 }
330 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
331 break;
332 case SP_ATTR_GUIDETOLERANCE:
333 nv->guidetoleranceunit = &px;
334 nv->guidetolerance = 20;
335 if (value) {
336 sp_nv_read_length(value, SP_UNIT_ABSOLUTE | SP_UNIT_DEVICE, &nv->guidetolerance, &nv->guidetoleranceunit);
337 }
338 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
339 break;
340 case SP_ATTR_OBJECTTOLERANCE:
341 nv->objecttoleranceunit = &px;
342 nv->objecttolerance = 20;
343 if (value) {
344 sp_nv_read_length(value, SP_UNIT_ABSOLUTE | SP_UNIT_DEVICE, &nv->objecttolerance, &nv->objecttoleranceunit);
345 }
346 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
347 break;
348 case SP_ATTR_GUIDECOLOR:
349 nv->guidecolor = (nv->guidecolor & 0xff) | (DEFAULTGUIDECOLOR & 0xffffff00);
350 if (value) {
351 nv->guidecolor = (nv->guidecolor & 0xff) | sp_svg_read_color(value, nv->guidecolor);
352 }
353 for (GSList *l = nv->guides; l != NULL; l = l->next) {
354 g_object_set(G_OBJECT(l->data), "color", nv->guidecolor, NULL);
355 }
356 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
357 break;
358 case SP_ATTR_GUIDEOPACITY:
359 nv->guidecolor = (nv->guidecolor & 0xffffff00) | (DEFAULTGUIDECOLOR & 0xff);
360 sp_nv_read_opacity(value, &nv->guidecolor);
361 for (GSList *l = nv->guides; l != NULL; l = l->next) {
362 g_object_set(G_OBJECT(l->data), "color", nv->guidecolor, NULL);
363 }
364 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
365 break;
366 case SP_ATTR_GUIDEHICOLOR:
367 nv->guidehicolor = (nv->guidehicolor & 0xff) | (DEFAULTGUIDEHICOLOR & 0xffffff00);
368 if (value) {
369 nv->guidehicolor = (nv->guidehicolor & 0xff) | sp_svg_read_color(value, nv->guidehicolor);
370 }
371 for (GSList *l = nv->guides; l != NULL; l = l->next) {
372 g_object_set(G_OBJECT(l->data), "hicolor", nv->guidehicolor, NULL);
373 }
374 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
375 break;
376 case SP_ATTR_GUIDEHIOPACITY:
377 nv->guidehicolor = (nv->guidehicolor & 0xffffff00) | (DEFAULTGUIDEHICOLOR & 0xff);
378 sp_nv_read_opacity(value, &nv->guidehicolor);
379 for (GSList *l = nv->guides; l != NULL; l = l->next) {
380 g_object_set(G_OBJECT(l->data), "hicolor", nv->guidehicolor, NULL);
381 }
382 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
383 break;
384 case SP_ATTR_SHOWBORDER:
385 nv->showborder = (value) ? sp_str_to_bool (value) : TRUE;
386 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
387 break;
388 case SP_ATTR_BORDERLAYER:
389 nv->borderlayer = SP_BORDER_LAYER_BOTTOM;
390 if (value && !strcasecmp(value, "true")) nv->borderlayer = SP_BORDER_LAYER_TOP;
391 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
392 break;
393 case SP_ATTR_BORDERCOLOR:
394 nv->bordercolor = (nv->bordercolor & 0xff) | (DEFAULTBORDERCOLOR & 0xffffff00);
395 if (value) {
396 nv->bordercolor = (nv->bordercolor & 0xff) | sp_svg_read_color (value, nv->bordercolor);
397 }
398 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
399 break;
400 case SP_ATTR_BORDEROPACITY:
401 nv->bordercolor = (nv->bordercolor & 0xffffff00) | (DEFAULTBORDERCOLOR & 0xff);
402 sp_nv_read_opacity(value, &nv->bordercolor);
403 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
404 break;
405 case SP_ATTR_PAGECOLOR:
406 nv->pagecolor = (nv->pagecolor & 0xff) | (DEFAULTPAGECOLOR & 0xffffff00);
407 if (value) {
408 nv->pagecolor = (nv->pagecolor & 0xff) | sp_svg_read_color(value, nv->pagecolor);
409 }
410 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
411 break;
412 case SP_ATTR_INKSCAPE_PAGEOPACITY:
413 nv->pagecolor = (nv->pagecolor & 0xffffff00) | (DEFAULTPAGECOLOR & 0xff);
414 sp_nv_read_opacity(value, &nv->pagecolor);
415 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
416 break;
417 case SP_ATTR_INKSCAPE_PAGESHADOW:
418 nv->pageshadow = value? atoi(value) : 2; // 2 is the default
419 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
420 break;
421 case SP_ATTR_SHOWPAGESHADOW:
422 nv->showpageshadow = (value) ? sp_str_to_bool(value) : TRUE;
423 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
424 break;
425 case SP_ATTR_INKSCAPE_ZOOM:
426 nv->zoom = value ? g_ascii_strtod(value, NULL) : 0; // zero means not set
427 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
428 break;
429 case SP_ATTR_INKSCAPE_CX:
430 nv->cx = value ? g_ascii_strtod(value, NULL) : HUGE_VAL; // HUGE_VAL means not set
431 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
432 break;
433 case SP_ATTR_INKSCAPE_CY:
434 nv->cy = value ? g_ascii_strtod(value, NULL) : HUGE_VAL; // HUGE_VAL means not set
435 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
436 break;
437 case SP_ATTR_INKSCAPE_WINDOW_WIDTH:
438 nv->window_width = value? atoi(value) : -1; // -1 means not set
439 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
440 break;
441 case SP_ATTR_INKSCAPE_WINDOW_HEIGHT:
442 nv->window_height = value ? atoi(value) : -1; // -1 means not set
443 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
444 break;
445 case SP_ATTR_INKSCAPE_WINDOW_X:
446 nv->window_x = value ? atoi(value) : -1; // -1 means not set
447 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
448 break;
449 case SP_ATTR_INKSCAPE_WINDOW_Y:
450 nv->window_y = value ? atoi(value) : -1; // -1 means not set
451 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
452 break;
453 case SP_ATTR_INKSCAPE_SNAP_GLOBAL:
454 nv->snap_manager.snapprefs.setSnapEnabledGlobally(value ? sp_str_to_bool(value) : TRUE);
455 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
456 break;
457 case SP_ATTR_INKSCAPE_SNAP_BBOX:
458 nv->snap_manager.snapprefs.setSnapModeBBox(value ? sp_str_to_bool(value) : FALSE);
459 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
460 break;
461 case SP_ATTR_INKSCAPE_SNAP_NODES:
462 nv->snap_manager.snapprefs.setSnapModeNode(value ? sp_str_to_bool(value) : TRUE);
463 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
464 break;
465 case SP_ATTR_INKSCAPE_SNAP_CENTER:
466 nv->snap_manager.snapprefs.setIncludeItemCenter(value ? sp_str_to_bool(value) : FALSE);
467 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
468 break;
469 case SP_ATTR_INKSCAPE_SNAP_SMOOTH_NODES:
470 nv->snap_manager.snapprefs.setSnapSmoothNodes(value ? sp_str_to_bool(value) : FALSE);
471 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
472 break;
473 case SP_ATTR_INKSCAPE_SNAP_GUIDE:
474 nv->snap_manager.snapprefs.setSnapModeGuide(value ? sp_str_to_bool(value) : FALSE);
475 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
476 break;
477 case SP_ATTR_INKSCAPE_SNAP_INTERS_GRIDGUIDE:
478 nv->snap_manager.snapprefs.setSnapIntersectionGG(value ? sp_str_to_bool(value) : TRUE);
479 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
480 break;
481 case SP_ATTR_INKSCAPE_SNAP_INTERS_PATHS:
482 nv->snap_manager.snapprefs.setSnapIntersectionCS(value ? sp_str_to_bool(value) : FALSE);
483 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
484 break;
485 case SP_ATTR_INKSCAPE_OBJECT_PATHS:
486 nv->snap_manager.object.setSnapToItemPath(value ? sp_str_to_bool(value) : FALSE);
487 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
488 break;
489 case SP_ATTR_INKSCAPE_OBJECT_NODES:
490 nv->snap_manager.object.setSnapToItemNode(value ? sp_str_to_bool(value) : FALSE);
491 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
492 break;
493 case SP_ATTR_INKSCAPE_BBOX_PATHS:
494 nv->snap_manager.object.setSnapToBBoxPath(value ? sp_str_to_bool(value) : FALSE);
495 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
496 break;
497 case SP_ATTR_INKSCAPE_BBOX_NODES:
498 nv->snap_manager.object.setSnapToBBoxNode(value ? sp_str_to_bool(value) : FALSE);
499 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
500 break;
501 case SP_ATTR_INKSCAPE_SNAP_PAGE:
502 nv->snap_manager.object.setSnapToPageBorder(value ? sp_str_to_bool(value) : FALSE);
503 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
504 break;
505 case SP_ATTR_INKSCAPE_CURRENT_LAYER:
506 nv->default_layer_id = value ? g_quark_from_string(value) : 0;
507 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
508 break;
509 case SP_ATTR_INKSCAPE_CONNECTOR_SPACING:
510 nv->connector_spacing = value ? g_ascii_strtod(value, NULL) :
511 defaultConnSpacing;
512 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
513 break;
514 case SP_ATTR_INKSCAPE_DOCUMENT_UNITS: {
515 /* The default unit if the document doesn't override this: e.g. for files saved as
516 * `plain SVG', or non-inkscape files, or files created by an inkscape 0.40 &
517 * earlier.
518 *
519 * Here we choose `px': useful for screen-destined SVGs, and fewer bug reports
520 * about "not the same numbers as what's in the SVG file" (at least for documents
521 * without a viewBox attribute on the root <svg> element). Similarly, it's also
522 * the most reliable unit (i.e. least likely to be wrong in different viewing
523 * conditions) for viewBox-less SVG files given that it's the unit that inkscape
524 * uses for all coordinates.
525 *
526 * For documents that do have a viewBox attribute on the root <svg> element, it
527 * might be better if we used either viewBox coordinates or if we used the unit of
528 * say the width attribute of the root <svg> element. However, these pose problems
529 * in that they aren't in general absolute units as currently required by
530 * doc_units.
531 */
532 SPUnit const *new_unit = &sp_unit_get_by_id(SP_UNIT_PX);
534 if (value) {
535 SPUnit const *const req_unit = sp_unit_get_by_abbreviation(value);
536 if ( req_unit == NULL ) {
537 g_warning("Unrecognized unit `%s'", value);
538 /* fixme: Document errors should be reported in the status bar or
539 * the like (e.g. as per
540 * http://www.w3.org/TR/SVG11/implnote.html#ErrorProcessing); g_log
541 * should be only for programmer errors. */
542 } else if ( req_unit->base == SP_UNIT_ABSOLUTE ||
543 req_unit->base == SP_UNIT_DEVICE ) {
544 new_unit = req_unit;
545 } else {
546 g_warning("Document units must be absolute like `mm', `pt' or `px', but found `%s'",
547 value);
548 /* fixme: Don't use g_log (see above). */
549 }
550 }
551 nv->doc_units = new_unit;
552 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
553 break;
554 }
555 default:
556 if (((SPObjectClass *) (parent_class))->set) {
557 ((SPObjectClass *) (parent_class))->set(object, key, value);
558 }
559 break;
560 }
561 }
563 /**
564 * 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,
565 * otherwise only add it to the specified desktop.
566 */
567 static Inkscape::CanvasGrid*
568 sp_namedview_add_grid(SPNamedView *nv, Inkscape::XML::Node *repr, SPDesktop *desktop) {
569 Inkscape::CanvasGrid* grid = NULL;
570 //check if namedview already has an object for this grid
571 for (GSList *l = nv->grids; l != NULL; l = l->next) {
572 Inkscape::CanvasGrid* g = (Inkscape::CanvasGrid*) l->data;
573 if (repr == g->repr) {
574 grid = g;
575 break;
576 }
577 }
579 if (!grid) {
580 //create grid object
581 Inkscape::GridType gridtype = Inkscape::CanvasGrid::getGridTypeFromSVGName(repr->attribute("type"));
582 if (!nv->document) {
583 g_warning("sp_namedview_add_grid - how come doc is null here?!");
584 return NULL;
585 }
586 grid = Inkscape::CanvasGrid::NewGrid(nv, repr, nv->document, gridtype);
587 nv->grids = g_slist_append(nv->grids, grid);
588 }
590 if (!desktop) {
591 //add canvasitem to all desktops
592 for (GSList *l = nv->views; l != NULL; l = l->next) {
593 SPDesktop *dt = static_cast<SPDesktop*>(l->data);
594 grid->createCanvasItem(dt);
595 }
596 } else {
597 //add canvasitem only for specified desktop
598 grid->createCanvasItem(desktop);
599 }
601 return grid;
602 }
604 static void sp_namedview_child_added(SPObject *object, Inkscape::XML::Node *child, Inkscape::XML::Node *ref)
605 {
606 SPNamedView *nv = (SPNamedView *) object;
608 if (((SPObjectClass *) (parent_class))->child_added) {
609 (* ((SPObjectClass *) (parent_class))->child_added)(object, child, ref);
610 }
612 if (!strcmp(child->name(), "inkscape:grid")) {
613 sp_namedview_add_grid(nv, child, NULL);
614 } else {
615 SPObject *no = object->document->getObjectByRepr(child);
616 if ( !SP_IS_OBJECT(no) )
617 return;
619 if (SP_IS_GUIDE(no)) {
620 SPGuide *g = (SPGuide *) no;
621 nv->guides = g_slist_prepend(nv->guides, g);
622 g_object_set(G_OBJECT(g), "color", nv->guidecolor, "hicolor", nv->guidehicolor, NULL);
623 if (nv->editable) {
624 for (GSList *l = nv->views; l != NULL; l = l->next) {
625 sp_guide_show(g, static_cast<SPDesktop*>(l->data)->guides, (GCallback) sp_dt_guide_event);
626 if (static_cast<SPDesktop*>(l->data)->guides_active)
627 sp_guide_sensitize(g,
628 sp_desktop_canvas(static_cast<SPDesktop*> (l->data)),
629 TRUE);
630 if (nv->showguides) {
631 for (GSList *v = SP_GUIDE(g)->views; v != NULL; v = v->next) {
632 sp_canvas_item_show(SP_CANVAS_ITEM(v->data));
633 }
634 } else {
635 for (GSList *v = SP_GUIDE(g)->views; v != NULL; v = v->next) {
636 sp_canvas_item_hide(SP_CANVAS_ITEM(v->data));
637 }
638 }
639 }
640 }
641 }
642 }
643 }
645 static void sp_namedview_remove_child(SPObject *object, Inkscape::XML::Node *child)
646 {
647 SPNamedView *nv = (SPNamedView *) object;
649 if (!strcmp(child->name(), "inkscape:grid")) {
650 for ( GSList *iter = nv->grids ; iter ; iter = iter->next ) {
651 Inkscape::CanvasGrid *gr = (Inkscape::CanvasGrid *)iter->data;
652 if ( gr->repr == child ) {
653 delete gr;
654 nv->grids = g_slist_remove_link(nv->grids, iter);
655 break;
656 }
657 }
658 } else {
659 GSList **ref = &nv->guides;
660 for ( GSList *iter = nv->guides ; iter ; iter = iter->next ) {
661 if ( SP_OBJECT_REPR((SPObject *)iter->data) == child ) {
662 *ref = iter->next;
663 iter->next = NULL;
664 g_slist_free_1(iter);
665 break;
666 }
667 ref = &iter->next;
668 }
669 }
671 if (((SPObjectClass *) (parent_class))->remove_child) {
672 (* ((SPObjectClass *) (parent_class))->remove_child)(object, child);
673 }
674 }
676 static Inkscape::XML::Node *sp_namedview_write(SPObject *object, Inkscape::XML::Document *doc, Inkscape::XML::Node *repr, guint flags)
677 {
678 if ( ( flags & SP_OBJECT_WRITE_EXT ) &&
679 repr != SP_OBJECT_REPR(object) )
680 {
681 if (repr) {
682 repr->mergeFrom(SP_OBJECT_REPR(object), "id");
683 } else {
684 repr = SP_OBJECT_REPR(object)->duplicate(doc);
685 }
686 }
688 return repr;
689 }
691 void SPNamedView::show(SPDesktop *desktop)
692 {
693 for (GSList *l = guides; l != NULL; l = l->next) {
694 sp_guide_show(SP_GUIDE(l->data), desktop->guides, (GCallback) sp_dt_guide_event);
695 if (desktop->guides_active) {
696 sp_guide_sensitize(SP_GUIDE(l->data), sp_desktop_canvas(desktop), TRUE);
697 }
698 if (showguides) {
699 for (GSList *v = SP_GUIDE(l->data)->views; v != NULL; v = v->next) {
700 sp_canvas_item_show(SP_CANVAS_ITEM(v->data));
701 }
702 } else {
703 for (GSList *v = SP_GUIDE(l->data)->views; v != NULL; v = v->next) {
704 sp_canvas_item_hide(SP_CANVAS_ITEM(v->data));
705 }
706 }
707 }
709 views = g_slist_prepend(views, desktop);
711 // generate grids specified in SVG:
712 Inkscape::XML::Node *repr = SP_OBJECT_REPR(this);
713 if (repr) {
714 for (Inkscape::XML::Node * child = repr->firstChild() ; child != NULL; child = child->next() ) {
715 if (!strcmp(child->name(), "inkscape:grid")) {
716 sp_namedview_add_grid(this, child, desktop);
717 }
718 }
719 }
721 desktop->showGrids(grids_visible, false);
722 }
724 #define MIN_ONSCREEN_DISTANCE 50
726 /*
727 * Restores window geometry from the document settings or defaults in prefs
728 */
729 void sp_namedview_window_from_document(SPDesktop *desktop)
730 {
731 SPNamedView *nv = desktop->namedview;
732 Inkscape::Preferences *prefs = Inkscape::Preferences::get();
733 bool geometry_from_file = prefs->getBool("/options/savewindowgeometry/value");
735 // restore window size and position stored with the document
736 if (geometry_from_file) {
737 gint w = MIN(gdk_screen_width(), nv->window_width);
738 gint h = MIN(gdk_screen_height(), nv->window_height);
739 gint x = MIN(gdk_screen_width() - MIN_ONSCREEN_DISTANCE, nv->window_x);
740 gint y = MIN(gdk_screen_height() - MIN_ONSCREEN_DISTANCE, nv->window_y);
741 if (w>0 && h>0 && x>0 && y>0) {
742 x = MIN(gdk_screen_width() - w, x);
743 y = MIN(gdk_screen_height() - h, y);
744 }
745 if (w>0 && h>0) {
746 desktop->setWindowSize(w, h);
747 }
748 if (x>0 && y>0) {
749 desktop->setWindowPosition(Geom::Point(x, y));
750 }
751 }
753 // restore zoom and view
754 if (nv->zoom != 0 && nv->zoom != HUGE_VAL && !IS_NAN(nv->zoom)
755 && nv->cx != HUGE_VAL && !IS_NAN(nv->cx)
756 && nv->cy != HUGE_VAL && !IS_NAN(nv->cy)) {
757 desktop->zoom_absolute(nv->cx, nv->cy, nv->zoom);
758 } else if (sp_desktop_document(desktop)) { // document without saved zoom, zoom to its page
759 desktop->zoom_page();
760 }
762 // cancel any history of zooms up to this point
763 if (desktop->zooms_past) {
764 g_list_free(desktop->zooms_past);
765 desktop->zooms_past = NULL;
766 }
767 }
769 void sp_namedview_update_layers_from_document (SPDesktop *desktop)
770 {
771 SPObject *layer = NULL;
772 SPDocument *document = desktop->doc();
773 SPNamedView *nv = desktop->namedview;
774 if ( nv->default_layer_id != 0 ) {
775 layer = document->getObjectById(g_quark_to_string(nv->default_layer_id));
776 }
777 // don't use that object if it's not at least group
778 if ( !layer || !SP_IS_GROUP(layer) ) {
779 layer = NULL;
780 }
781 // if that didn't work out, look for the topmost layer
782 if (!layer) {
783 SPObject *iter = sp_object_first_child(SP_DOCUMENT_ROOT(document));
784 for ( ; iter ; iter = SP_OBJECT_NEXT(iter) ) {
785 if (desktop->isLayer(iter)) {
786 layer = iter;
787 }
788 }
789 }
790 if (layer) {
791 desktop->setCurrentLayer(layer);
792 }
794 // FIXME: find a better place to do this
795 desktop->event_log->updateUndoVerbs();
796 }
798 void sp_namedview_document_from_window(SPDesktop *desktop)
799 {
800 Inkscape::Preferences *prefs = Inkscape::Preferences::get();
801 bool save_geometry_in_file = prefs->getBool("/options/savewindowgeometry/value", 0);
802 Inkscape::XML::Node *view = SP_OBJECT_REPR(desktop->namedview);
803 Geom::Rect const r = desktop->get_display_area();
805 // saving window geometry is not undoable
806 bool saved = sp_document_get_undo_sensitive(sp_desktop_document(desktop));
807 sp_document_set_undo_sensitive(sp_desktop_document(desktop), false);
809 sp_repr_set_svg_double(view, "inkscape:zoom", desktop->current_zoom());
810 sp_repr_set_svg_double(view, "inkscape:cx", r.midpoint()[Geom::X]);
811 sp_repr_set_svg_double(view, "inkscape:cy", r.midpoint()[Geom::Y]);
813 if (save_geometry_in_file) {
814 gint w, h, x, y;
815 desktop->getWindowGeometry(x, y, w, h);
816 sp_repr_set_int(view, "inkscape:window-width", w);
817 sp_repr_set_int(view, "inkscape:window-height", h);
818 sp_repr_set_int(view, "inkscape:window-x", x);
819 sp_repr_set_int(view, "inkscape:window-y", y);
820 }
822 view->setAttribute("inkscape:current-layer", SP_OBJECT_ID(desktop->currentLayer()));
824 // restore undoability
825 sp_document_set_undo_sensitive(sp_desktop_document(desktop), saved);
826 }
828 void SPNamedView::hide(SPDesktop const *desktop)
829 {
830 g_assert(desktop != NULL);
831 g_assert(g_slist_find(views, desktop));
833 for (GSList *l = guides; l != NULL; l = l->next) {
834 sp_guide_hide(SP_GUIDE(l->data), sp_desktop_canvas(desktop));
835 }
837 views = g_slist_remove(views, desktop);
838 }
840 void SPNamedView::activateGuides(gpointer desktop, gboolean active)
841 {
842 g_assert(desktop != NULL);
843 g_assert(g_slist_find(views, desktop));
845 SPDesktop *dt = static_cast<SPDesktop*>(desktop);
847 for (GSList *l = guides; l != NULL; l = l->next) {
848 sp_guide_sensitize(SP_GUIDE(l->data), sp_desktop_canvas(dt), active);
849 }
850 }
852 static void sp_namedview_setup_guides(SPNamedView *nv)
853 {
854 for (GSList *l = nv->guides; l != NULL; l = l->next) {
855 if (nv->showguides) {
856 for (GSList *v = SP_GUIDE(l->data)->views; v != NULL; v = v->next) {
857 sp_canvas_item_show(SP_CANVAS_ITEM(v->data));
858 }
859 } else {
860 for (GSList *v = SP_GUIDE(l->data)->views; v != NULL; v = v->next) {
861 sp_canvas_item_hide(SP_CANVAS_ITEM(v->data));
862 }
863 }
864 }
865 }
867 void sp_namedview_toggle_guides(SPDocument *doc, Inkscape::XML::Node *repr)
868 {
869 unsigned int v;
870 unsigned int set = sp_repr_get_boolean(repr, "showguides", &v);
871 if (!set) { // hide guides if not specified, for backwards compatibility
872 v = FALSE;
873 } else {
874 v = !v;
875 }
877 bool saved = sp_document_get_undo_sensitive(doc);
878 sp_document_set_undo_sensitive(doc, false);
879 sp_repr_set_boolean(repr, "showguides", v);
880 sp_document_set_undo_sensitive(doc, saved);
882 doc->setModifiedSinceSave();
883 }
885 void sp_namedview_show_grids(SPNamedView * namedview, bool show, bool dirty_document)
886 {
887 namedview->grids_visible = show;
889 SPDocument *doc = SP_OBJECT_DOCUMENT (namedview);
890 Inkscape::XML::Node *repr = SP_OBJECT_REPR(namedview);
892 bool saved = sp_document_get_undo_sensitive(doc);
893 sp_document_set_undo_sensitive(doc, false);
894 sp_repr_set_boolean(repr, "showgrid", namedview->grids_visible);
895 sp_document_set_undo_sensitive(doc, saved);
897 /* we don't want the document to get dirty on startup; that's when
898 we call this function with dirty_document = false */
899 if (dirty_document) {
900 doc->setModifiedSinceSave();
901 }
902 }
904 gchar const *SPNamedView::getName() const
905 {
906 SPException ex;
907 SP_EXCEPTION_INIT(&ex);
908 return sp_object_getAttribute(SP_OBJECT(this), "id", &ex);
909 }
911 guint SPNamedView::getViewCount()
912 {
913 return ++viewcount;
914 }
916 GSList const *SPNamedView::getViewList() const
917 {
918 return views;
919 }
921 /* This should be moved somewhere */
923 static gboolean sp_str_to_bool(const gchar *str)
924 {
925 if (str) {
926 if (!g_strcasecmp(str, "true") ||
927 !g_strcasecmp(str, "yes") ||
928 !g_strcasecmp(str, "y") ||
929 (atoi(str) != 0)) {
930 return TRUE;
931 }
932 }
934 return FALSE;
935 }
937 /* fixme: Collect all these length parsing methods and think common sane API */
939 static gboolean sp_nv_read_length(const gchar *str, guint base, gdouble *val, const SPUnit **unit)
940 {
941 if (!str) {
942 return FALSE;
943 }
945 gchar *u;
946 gdouble v = g_ascii_strtod(str, &u);
947 if (!u) {
948 return FALSE;
949 }
950 while (isspace(*u)) {
951 u += 1;
952 }
954 if (!*u) {
955 /* No unit specified - keep default */
956 *val = v;
957 return TRUE;
958 }
960 if (base & SP_UNIT_DEVICE) {
961 if (u[0] && u[1] && !isalnum(u[2]) && !strncmp(u, "px", 2)) {
962 *unit = &sp_unit_get_by_id(SP_UNIT_PX);
963 *val = v;
964 return TRUE;
965 }
966 }
968 if (base & SP_UNIT_ABSOLUTE) {
969 if (!strncmp(u, "pt", 2)) {
970 *unit = &sp_unit_get_by_id(SP_UNIT_PT);
971 } else if (!strncmp(u, "mm", 2)) {
972 *unit = &sp_unit_get_by_id(SP_UNIT_MM);
973 } else if (!strncmp(u, "cm", 2)) {
974 *unit = &sp_unit_get_by_id(SP_UNIT_CM);
975 } else if (!strncmp(u, "m", 1)) {
976 *unit = &sp_unit_get_by_id(SP_UNIT_M);
977 } else if (!strncmp(u, "in", 2)) {
978 *unit = &sp_unit_get_by_id(SP_UNIT_IN);
979 } else {
980 return FALSE;
981 }
982 *val = v;
983 return TRUE;
984 }
986 return FALSE;
987 }
989 static gboolean sp_nv_read_opacity(const gchar *str, guint32 *color)
990 {
991 if (!str) {
992 return FALSE;
993 }
995 gchar *u;
996 gdouble v = g_ascii_strtod(str, &u);
997 if (!u) {
998 return FALSE;
999 }
1000 v = CLAMP(v, 0.0, 1.0);
1002 *color = (*color & 0xffffff00) | (guint32) floor(v * 255.9999);
1004 return TRUE;
1005 }
1007 SPNamedView *sp_document_namedview(SPDocument *document, const gchar *id)
1008 {
1009 g_return_val_if_fail(document != NULL, NULL);
1011 SPObject *nv = sp_item_group_get_child_by_name((SPGroup *) document->root, NULL, "sodipodi:namedview");
1012 g_assert(nv != NULL);
1014 if (id == NULL) {
1015 return (SPNamedView *) nv;
1016 }
1018 while (nv && strcmp(nv->id, id)) {
1019 nv = sp_item_group_get_child_by_name((SPGroup *) document->root, nv, "sodipodi:namedview");
1020 }
1022 return (SPNamedView *) nv;
1023 }
1025 /**
1026 * Returns namedview's default metric.
1027 */
1028 SPMetric SPNamedView::getDefaultMetric() const
1029 {
1030 if (doc_units) {
1031 return sp_unit_get_metric(doc_units);
1032 } else {
1033 return SP_PT;
1034 }
1035 }
1037 /**
1038 * Returns the first grid it could find that isEnabled(). Returns NULL, if none is enabled
1039 */
1040 Inkscape::CanvasGrid * sp_namedview_get_first_enabled_grid(SPNamedView *namedview)
1041 {
1042 for (GSList const * l = namedview->grids; l != NULL; l = l->next) {
1043 Inkscape::CanvasGrid * grid = (Inkscape::CanvasGrid*) l->data;
1044 if (grid->isEnabled())
1045 return grid;
1046 }
1048 return NULL;
1049 }
1051 void SPNamedView::translateGuides(Geom::Translate const &tr) {
1052 for (GSList *l = guides; l != NULL; l = l->next) {
1053 SPGuide &guide = *SP_GUIDE(l->data);
1054 Geom::Point point_on_line = guide.point_on_line;
1055 point_on_line[0] += tr[0];
1056 point_on_line[1] += tr[1];
1057 sp_guide_moveto(guide, point_on_line, true);
1058 }
1059 }
1061 void SPNamedView::scrollAllDesktops(double dx, double dy, bool is_scrolling) {
1062 for(GSList *l = views; l; l = l->next) {
1063 SPDesktop *desktop = static_cast<SPDesktop *>(l->data);
1064 desktop->scroll_world_in_svg_coords(dx, dy, is_scrolling);
1065 }
1066 }
1069 /*
1070 Local Variables:
1071 mode:c++
1072 c-file-style:"stroustrup"
1073 c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
1074 indent-tabs-mode:nil
1075 fill-column:99
1076 End:
1077 */
1078 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=99 :