a26d1ce0e0fbb47e912f51ed87fc51c1576b9a32
1 #define __SP_NAMEDVIEW_C__
3 /*
4 * <sodipodi:namedview> implementation
5 *
6 * Authors:
7 * Lauris Kaplinski <lauris@kaplinski.com>
8 * bulia byak <buliabyak@users.sf.net>
9 *
10 * Copyright (C) 2006 Johan Engelen <johan@shouraizou.nl>
11 * Copyright (C) 1999-2005 Authors
12 * Copyright (C) 2000-2001 Ximian, Inc.
13 *
14 * Released under GNU GPL, read the file 'COPYING' for more information
15 */
17 #include "config.h"
19 #include "display/canvas-grid.h"
20 #include "helper/units.h"
21 #include "svg/svg-color.h"
22 #include "xml/repr.h"
23 #include "attributes.h"
24 #include "document.h"
25 #include "desktop-events.h"
26 #include "desktop-handles.h"
27 #include "event-log.h"
28 #include "sp-guide.h"
29 #include "sp-item-group.h"
30 #include "sp-namedview.h"
31 #include "prefs-utils.h"
32 #include "desktop.h"
33 #include "conn-avoid-ref.h" // for defaultConnSpacing.
35 #include "isnan.h" //temp fix for isnan(). include last
37 #define DEFAULTTOLERANCE 0.4
38 #define DEFAULTGRIDCOLOR 0x3f3fff25
39 #define DEFAULTGRIDEMPCOLOR 0x3f3fff60
40 #define DEFAULTGRIDEMPSPACING 5
41 #define DEFAULTGUIDECOLOR 0x0000ff7f
42 #define DEFAULTGUIDEHICOLOR 0xff00007f
43 #define DEFAULTBORDERCOLOR 0x000000ff
44 #define DEFAULTPAGECOLOR 0xffffff00
46 static void sp_namedview_class_init(SPNamedViewClass *klass);
47 static void sp_namedview_init(SPNamedView *namedview);
49 static void sp_namedview_build(SPObject *object, SPDocument *document, Inkscape::XML::Node *repr);
50 static void sp_namedview_release(SPObject *object);
51 static void sp_namedview_set(SPObject *object, unsigned int key, const gchar *value);
52 static void sp_namedview_child_added(SPObject *object, Inkscape::XML::Node *child, Inkscape::XML::Node *ref);
53 static void sp_namedview_remove_child(SPObject *object, Inkscape::XML::Node *child);
54 static Inkscape::XML::Node *sp_namedview_write(SPObject *object, Inkscape::XML::Node *repr, guint flags);
56 static void sp_namedview_setup_guides(SPNamedView * nv);
58 static gboolean sp_str_to_bool(const gchar *str);
59 static gboolean sp_nv_read_length(const gchar *str, guint base, gdouble *val, const SPUnit **unit);
60 static gboolean sp_nv_read_opacity(const gchar *str, guint32 *color);
62 static SPObjectGroupClass * parent_class;
64 GType
65 sp_namedview_get_type()
66 {
67 static GType namedview_type = 0;
68 if (!namedview_type) {
69 GTypeInfo namedview_info = {
70 sizeof(SPNamedViewClass),
71 NULL, /* base_init */
72 NULL, /* base_finalize */
73 (GClassInitFunc) sp_namedview_class_init,
74 NULL, /* class_finalize */
75 NULL, /* class_data */
76 sizeof(SPNamedView),
77 16, /* n_preallocs */
78 (GInstanceInitFunc) sp_namedview_init,
79 NULL, /* value_table */
80 };
81 namedview_type = g_type_register_static(SP_TYPE_OBJECTGROUP, "SPNamedView", &namedview_info, (GTypeFlags)0);
82 }
83 return namedview_type;
84 }
86 static void sp_namedview_class_init(SPNamedViewClass * klass)
87 {
88 GObjectClass * gobject_class;
89 SPObjectClass * sp_object_class;
91 gobject_class = (GObjectClass *) klass;
92 sp_object_class = (SPObjectClass *) klass;
94 parent_class = (SPObjectGroupClass*) g_type_class_ref(SP_TYPE_OBJECTGROUP);
96 sp_object_class->build = sp_namedview_build;
97 sp_object_class->release = sp_namedview_release;
98 sp_object_class->set = sp_namedview_set;
99 sp_object_class->child_added = sp_namedview_child_added;
100 sp_object_class->remove_child = sp_namedview_remove_child;
101 sp_object_class->write = sp_namedview_write;
102 }
104 static void sp_namedview_init(SPNamedView *nv)
105 {
106 nv->editable = TRUE;
107 nv->showguides = TRUE;
108 nv->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_build(SPObject *object, SPDocument *document, Inkscape::XML::Node *repr)
123 {
124 SPNamedView *nv = (SPNamedView *) object;
125 SPObjectGroup *og = (SPObjectGroup *) object;
127 if (((SPObjectClass *) (parent_class))->build) {
128 (* ((SPObjectClass *) (parent_class))->build)(object, document, repr);
129 }
131 sp_object_read_attr(object, "inkscape:document-units");
132 sp_object_read_attr(object, "viewonly");
133 sp_object_read_attr(object, "showguides");
134 sp_object_read_attr(object, "showgrid");
135 sp_object_read_attr(object, "gridtolerance");
136 sp_object_read_attr(object, "guidetolerance");
137 sp_object_read_attr(object, "objecttolerance");
138 sp_object_read_attr(object, "guidecolor");
139 sp_object_read_attr(object, "guideopacity");
140 sp_object_read_attr(object, "guidehicolor");
141 sp_object_read_attr(object, "guidehiopacity");
142 sp_object_read_attr(object, "showborder");
143 sp_object_read_attr(object, "inkscape:showpageshadow");
144 sp_object_read_attr(object, "borderlayer");
145 sp_object_read_attr(object, "bordercolor");
146 sp_object_read_attr(object, "borderopacity");
147 sp_object_read_attr(object, "pagecolor");
148 sp_object_read_attr(object, "inkscape:pageopacity");
149 sp_object_read_attr(object, "inkscape:pageshadow");
150 sp_object_read_attr(object, "inkscape:zoom");
151 sp_object_read_attr(object, "inkscape:cx");
152 sp_object_read_attr(object, "inkscape:cy");
153 sp_object_read_attr(object, "inkscape:window-width");
154 sp_object_read_attr(object, "inkscape:window-height");
155 sp_object_read_attr(object, "inkscape:window-x");
156 sp_object_read_attr(object, "inkscape:window-y");
157 sp_object_read_attr(object, "inkscape:snap-bbox");
158 sp_object_read_attr(object, "inkscape:snap-nodes");
159 sp_object_read_attr(object, "inkscape:snap-guide");
160 sp_object_read_attr(object, "inkscape:snap-center");
161 sp_object_read_attr(object, "inkscape:snap-intersection-grid-guide");
162 sp_object_read_attr(object, "inkscape:snap-snap-intersection-line-segments");
163 sp_object_read_attr(object, "inkscape:object-paths");
164 sp_object_read_attr(object, "inkscape:object-nodes");
165 sp_object_read_attr(object, "inkscape:bbox-paths");
166 sp_object_read_attr(object, "inkscape:bbox-nodes");
167 sp_object_read_attr(object, "inkscape:current-layer");
168 sp_object_read_attr(object, "inkscape:connector-spacing");
170 /* Construct guideline list */
172 for (SPObject *o = sp_object_first_child(SP_OBJECT(og)) ; o != NULL; o = SP_OBJECT_NEXT(o) ) {
173 if (SP_IS_GUIDE(o)) {
174 SPGuide * g = SP_GUIDE(o);
175 nv->guides = g_slist_prepend(nv->guides, g);
176 g_object_set(G_OBJECT(g), "color", nv->guidecolor, "hicolor", nv->guidehicolor, NULL);
177 }
178 }
179 }
181 static void sp_namedview_release(SPObject *object)
182 {
183 SPNamedView *namedview = (SPNamedView *) object;
185 if (namedview->guides) {
186 g_slist_free(namedview->guides);
187 namedview->guides = NULL;
188 }
190 // delete grids:
191 while ( namedview->grids ) {
192 Inkscape::CanvasGrid *gr = (Inkscape::CanvasGrid *)namedview->grids->data;
193 delete gr;
194 namedview->grids = g_slist_remove_link(namedview->grids, namedview->grids);
195 }
197 if (((SPObjectClass *) parent_class)->release) {
198 ((SPObjectClass *) parent_class)->release(object);
199 }
201 namedview->snap_manager.~SnapManager();
202 }
204 static void sp_namedview_set(SPObject *object, unsigned int key, const gchar *value)
205 {
206 SPNamedView *nv = SP_NAMEDVIEW(object);
207 SPUnit const &px = sp_unit_get_by_id(SP_UNIT_PX);
209 switch (key) {
210 case SP_ATTR_VIEWONLY:
211 nv->editable = (!value);
212 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
213 break;
214 case SP_ATTR_SHOWGUIDES:
215 if (!value) { // show guides if not specified, for backwards compatibility
216 nv->showguides = TRUE;
217 } else {
218 nv->showguides = sp_str_to_bool(value);
219 }
220 sp_namedview_setup_guides(nv);
221 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
222 break;
223 case SP_ATTR_SHOWGRIDS:
224 if (!value) { // show grids if not specified, for backwards compatibility
225 nv->grids_visible = false;
226 } else {
227 nv->grids_visible = sp_str_to_bool(value);
228 }
229 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
230 break;
231 case SP_ATTR_GRIDTOLERANCE:
232 nv->gridtoleranceunit = &px;
233 nv->gridtolerance = DEFAULTTOLERANCE;
234 if (value) {
235 sp_nv_read_length(value, SP_UNIT_ABSOLUTE | SP_UNIT_DEVICE, &nv->gridtolerance, &nv->gridtoleranceunit);
236 }
237 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
238 break;
239 case SP_ATTR_GUIDETOLERANCE:
240 nv->guidetoleranceunit = &px;
241 nv->guidetolerance = DEFAULTTOLERANCE;
242 if (value) {
243 sp_nv_read_length(value, SP_UNIT_ABSOLUTE | SP_UNIT_DEVICE, &nv->guidetolerance, &nv->guidetoleranceunit);
244 }
245 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
246 break;
247 case SP_ATTR_OBJECTTOLERANCE:
248 nv->objecttoleranceunit = &px;
249 nv->objecttolerance = DEFAULTTOLERANCE;
250 if (value) {
251 sp_nv_read_length(value, SP_UNIT_ABSOLUTE | SP_UNIT_DEVICE, &nv->objecttolerance, &nv->objecttoleranceunit);
252 }
253 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
254 break;
255 case SP_ATTR_GUIDECOLOR:
256 nv->guidecolor = (nv->guidecolor & 0xff) | (DEFAULTGUIDECOLOR & 0xffffff00);
257 if (value) {
258 nv->guidecolor = (nv->guidecolor & 0xff) | sp_svg_read_color(value, nv->guidecolor);
259 }
260 for (GSList *l = nv->guides; l != NULL; l = l->next) {
261 g_object_set(G_OBJECT(l->data), "color", nv->guidecolor, NULL);
262 }
263 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
264 break;
265 case SP_ATTR_GUIDEOPACITY:
266 nv->guidecolor = (nv->guidecolor & 0xffffff00) | (DEFAULTGUIDECOLOR & 0xff);
267 sp_nv_read_opacity(value, &nv->guidecolor);
268 for (GSList *l = nv->guides; l != NULL; l = l->next) {
269 g_object_set(G_OBJECT(l->data), "color", nv->guidecolor, NULL);
270 }
271 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
272 break;
273 case SP_ATTR_GUIDEHICOLOR:
274 nv->guidehicolor = (nv->guidehicolor & 0xff) | (DEFAULTGUIDEHICOLOR & 0xffffff00);
275 if (value) {
276 nv->guidehicolor = (nv->guidehicolor & 0xff) | sp_svg_read_color(value, nv->guidehicolor);
277 }
278 for (GSList *l = nv->guides; l != NULL; l = l->next) {
279 g_object_set(G_OBJECT(l->data), "hicolor", nv->guidehicolor, NULL);
280 }
281 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
282 break;
283 case SP_ATTR_GUIDEHIOPACITY:
284 nv->guidehicolor = (nv->guidehicolor & 0xffffff00) | (DEFAULTGUIDEHICOLOR & 0xff);
285 sp_nv_read_opacity(value, &nv->guidehicolor);
286 for (GSList *l = nv->guides; l != NULL; l = l->next) {
287 g_object_set(G_OBJECT(l->data), "hicolor", nv->guidehicolor, NULL);
288 }
289 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
290 break;
291 case SP_ATTR_SHOWBORDER:
292 nv->showborder = (value) ? sp_str_to_bool (value) : TRUE;
293 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
294 break;
295 case SP_ATTR_BORDERLAYER:
296 nv->borderlayer = SP_BORDER_LAYER_BOTTOM;
297 if (value && !strcasecmp(value, "true")) nv->borderlayer = SP_BORDER_LAYER_TOP;
298 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
299 break;
300 case SP_ATTR_BORDERCOLOR:
301 nv->bordercolor = (nv->bordercolor & 0xff) | (DEFAULTBORDERCOLOR & 0xffffff00);
302 if (value) {
303 nv->bordercolor = (nv->bordercolor & 0xff) | sp_svg_read_color (value, nv->bordercolor);
304 }
305 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
306 break;
307 case SP_ATTR_BORDEROPACITY:
308 nv->bordercolor = (nv->bordercolor & 0xffffff00) | (DEFAULTBORDERCOLOR & 0xff);
309 sp_nv_read_opacity(value, &nv->bordercolor);
310 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
311 break;
312 case SP_ATTR_PAGECOLOR:
313 nv->pagecolor = (nv->pagecolor & 0xff) | (DEFAULTPAGECOLOR & 0xffffff00);
314 if (value) {
315 nv->pagecolor = (nv->pagecolor & 0xff) | sp_svg_read_color(value, nv->pagecolor);
316 }
317 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
318 break;
319 case SP_ATTR_INKSCAPE_PAGEOPACITY:
320 nv->pagecolor = (nv->pagecolor & 0xffffff00) | (DEFAULTPAGECOLOR & 0xff);
321 sp_nv_read_opacity(value, &nv->pagecolor);
322 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
323 break;
324 case SP_ATTR_INKSCAPE_PAGESHADOW:
325 nv->pageshadow = value? atoi(value) : 2; // 2 is the default
326 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
327 break;
328 case SP_ATTR_SHOWPAGESHADOW:
329 nv->showpageshadow = (value) ? sp_str_to_bool(value) : TRUE;
330 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
331 break;
332 case SP_ATTR_INKSCAPE_ZOOM:
333 nv->zoom = value ? g_ascii_strtod(value, NULL) : 0; // zero means not set
334 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
335 break;
336 case SP_ATTR_INKSCAPE_CX:
337 nv->cx = value ? g_ascii_strtod(value, NULL) : HUGE_VAL; // HUGE_VAL means not set
338 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
339 break;
340 case SP_ATTR_INKSCAPE_CY:
341 nv->cy = value ? g_ascii_strtod(value, NULL) : HUGE_VAL; // HUGE_VAL means not set
342 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
343 break;
344 case SP_ATTR_INKSCAPE_WINDOW_WIDTH:
345 nv->window_width = value? atoi(value) : -1; // -1 means not set
346 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
347 break;
348 case SP_ATTR_INKSCAPE_WINDOW_HEIGHT:
349 nv->window_height = value ? atoi(value) : -1; // -1 means not set
350 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
351 break;
352 case SP_ATTR_INKSCAPE_WINDOW_X:
353 nv->window_x = value ? atoi(value) : -1; // -1 means not set
354 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
355 break;
356 case SP_ATTR_INKSCAPE_WINDOW_Y:
357 nv->window_y = value ? atoi(value) : -1; // -1 means not set
358 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
359 break;
360 case SP_ATTR_INKSCAPE_SNAP_BBOX:
361 nv->snap_manager.setSnapModeBBox(value ? sp_str_to_bool(value) : FALSE);
362 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
363 break;
364 case SP_ATTR_INKSCAPE_SNAP_NODES:
365 nv->snap_manager.setSnapModeNode(value ? sp_str_to_bool(value) : TRUE);
366 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
367 break;
368 case SP_ATTR_INKSCAPE_SNAP_CENTER:
369 nv->snap_manager.setIncludeItemCenter(value ? sp_str_to_bool(value) : FALSE);
370 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
371 break;
372 case SP_ATTR_INKSCAPE_SNAP_GUIDE:
373 nv->snap_manager.setSnapModeGuide(value ? sp_str_to_bool(value) : FALSE);
374 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
375 break;
376 case SP_ATTR_INKSCAPE_SNAP_INTERS_GRIDGUIDE:
377 nv->snap_manager.setSnapIntersectionGG(value ? sp_str_to_bool(value) : FALSE);
378 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
379 break;
380 case SP_ATTR_INKSCAPE_SNAP_INTERS_LINESEGM:
381 nv->snap_manager.setSnapIntersectionLS(value ? sp_str_to_bool(value) : FALSE);
382 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
383 break;
384 case SP_ATTR_INKSCAPE_OBJECT_PATHS:
385 nv->snap_manager.object.setSnapToItemPath(value ? sp_str_to_bool(value) : FALSE);
386 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
387 break;
388 case SP_ATTR_INKSCAPE_OBJECT_NODES:
389 nv->snap_manager.object.setSnapToItemNode(value ? sp_str_to_bool(value) : FALSE);
390 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
391 break;
392 case SP_ATTR_INKSCAPE_BBOX_PATHS:
393 nv->snap_manager.object.setSnapToBBoxPath(value ? sp_str_to_bool(value) : FALSE);
394 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
395 break;
396 case SP_ATTR_INKSCAPE_BBOX_NODES:
397 nv->snap_manager.object.setSnapToBBoxNode(value ? sp_str_to_bool(value) : FALSE);
398 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
399 break;
400 case SP_ATTR_INKSCAPE_CURRENT_LAYER:
401 nv->default_layer_id = value ? g_quark_from_string(value) : 0;
402 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
403 break;
404 case SP_ATTR_INKSCAPE_CONNECTOR_SPACING:
405 nv->connector_spacing = value ? g_ascii_strtod(value, NULL) :
406 defaultConnSpacing;
407 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
408 break;
409 case SP_ATTR_INKSCAPE_DOCUMENT_UNITS: {
410 /* The default unit if the document doesn't override this: e.g. for files saved as
411 * `plain SVG', or non-inkscape files, or files created by an inkscape 0.40 &
412 * earlier.
413 *
414 * Here we choose `px': useful for screen-destined SVGs, and fewer bug reports
415 * about "not the same numbers as what's in the SVG file" (at least for documents
416 * without a viewBox attribute on the root <svg> element). Similarly, it's also
417 * the most reliable unit (i.e. least likely to be wrong in different viewing
418 * conditions) for viewBox-less SVG files given that it's the unit that inkscape
419 * uses for all coordinates.
420 *
421 * For documents that do have a viewBox attribute on the root <svg> element, it
422 * might be better if we used either viewBox coordinates or if we used the unit of
423 * say the width attribute of the root <svg> element. However, these pose problems
424 * in that they aren't in general absolute units as currently required by
425 * doc_units.
426 */
427 SPUnit const *new_unit = &sp_unit_get_by_id(SP_UNIT_PX);
429 if (value) {
430 SPUnit const *const req_unit = sp_unit_get_by_abbreviation(value);
431 if ( req_unit == NULL ) {
432 g_warning("Unrecognized unit `%s'", value);
433 /* fixme: Document errors should be reported in the status bar or
434 * the like (e.g. as per
435 * http://www.w3.org/TR/SVG11/implnote.html#ErrorProcessing); g_log
436 * should be only for programmer errors. */
437 } else if ( req_unit->base == SP_UNIT_ABSOLUTE ||
438 req_unit->base == SP_UNIT_DEVICE ) {
439 new_unit = req_unit;
440 } else {
441 g_warning("Document units must be absolute like `mm', `pt' or `px', but found `%s'",
442 value);
443 /* fixme: Don't use g_log (see above). */
444 }
445 }
446 nv->doc_units = new_unit;
447 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
448 break;
449 }
450 default:
451 if (((SPObjectClass *) (parent_class))->set) {
452 ((SPObjectClass *) (parent_class))->set(object, key, value);
453 }
454 break;
455 }
456 }
458 /**
459 * 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,
460 * otherwise only add it to the specified desktop.
461 */
462 static Inkscape::CanvasGrid*
463 sp_namedview_add_grid(SPNamedView *nv, Inkscape::XML::Node *repr, SPDesktop *desktop) {
464 Inkscape::CanvasGrid* grid = NULL;
465 //check if namedview already has an object for this grid
466 for (GSList *l = nv->grids; l != NULL; l = l->next) {
467 Inkscape::CanvasGrid* g = (Inkscape::CanvasGrid*) l->data;
468 if (repr == g->repr) {
469 grid = g;
470 break;
471 }
472 }
474 if (!grid) {
475 //create grid object
476 Inkscape::GridType gridtype = Inkscape::CanvasGrid::getGridTypeFromSVGName(repr->attribute("type"));
477 SPDocument *doc = NULL;
478 if (desktop)
479 doc = sp_desktop_document(desktop);
480 else
481 doc = sp_desktop_document(static_cast<SPDesktop*>(nv->views->data));
482 grid = Inkscape::CanvasGrid::NewGrid(nv, repr, doc, gridtype);
483 nv->grids = g_slist_append(nv->grids, grid);
484 //Initialize the snapping parameters for the new grid
485 bool enabled_node = nv->snap_manager.getSnapModeNode();
486 bool enabled_bbox = nv->snap_manager.getSnapModeBBox();
487 grid->snapper->setSnapFrom(Inkscape::Snapper::SNAPPOINT_NODE, enabled_node);
488 grid->snapper->setSnapFrom(Inkscape::Snapper::SNAPPOINT_BBOX, enabled_bbox);
489 }
491 if (!desktop) {
492 //add canvasitem to all desktops
493 for (GSList *l = nv->views; l != NULL; l = l->next) {
494 SPDesktop *dt = static_cast<SPDesktop*>(l->data);
495 grid->createCanvasItem(dt);
496 }
497 } else {
498 //add canvasitem only for specified desktop
499 grid->createCanvasItem(desktop);
500 }
502 return grid;
503 }
505 static void sp_namedview_child_added(SPObject *object, Inkscape::XML::Node *child, Inkscape::XML::Node *ref)
506 {
507 SPNamedView *nv = (SPNamedView *) object;
509 if (((SPObjectClass *) (parent_class))->child_added) {
510 (* ((SPObjectClass *) (parent_class))->child_added)(object, child, ref);
511 }
513 const gchar *id = child->attribute("id");
514 if (!strcmp(child->name(), "inkscape:grid")) {
515 sp_namedview_add_grid(nv, child, NULL);
516 } else if (id) {
517 SPObject *no = object->document->getObjectById(id);
518 if ( !SP_IS_OBJECT(no) )
519 return;
521 if (SP_IS_GUIDE(no)) {
522 SPGuide *g = (SPGuide *) no;
523 nv->guides = g_slist_prepend(nv->guides, g);
524 g_object_set(G_OBJECT(g), "color", nv->guidecolor, "hicolor", nv->guidehicolor, NULL);
525 if (nv->editable) {
526 for (GSList *l = nv->views; l != NULL; l = l->next) {
527 sp_guide_show(g, static_cast<SPDesktop*>(l->data)->guides, (GCallback) sp_dt_guide_event);
528 if (static_cast<SPDesktop*>(l->data)->guides_active)
529 sp_guide_sensitize(g,
530 sp_desktop_canvas(static_cast<SPDesktop*> (l->data)),
531 TRUE);
532 if (nv->showguides) {
533 for (GSList *v = SP_GUIDE(g)->views; v != NULL; v = v->next) {
534 sp_canvas_item_show(SP_CANVAS_ITEM(v->data));
535 }
536 } else {
537 for (GSList *v = SP_GUIDE(g)->views; v != NULL; v = v->next) {
538 sp_canvas_item_hide(SP_CANVAS_ITEM(v->data));
539 }
540 }
541 }
542 }
543 }
544 }
545 }
547 static void sp_namedview_remove_child(SPObject *object, Inkscape::XML::Node *child)
548 {
549 SPNamedView *nv = (SPNamedView *) object;
551 if (!strcmp(child->name(), "inkscape:grid")) {
552 for ( GSList *iter = nv->grids ; iter ; iter = iter->next ) {
553 Inkscape::CanvasGrid *gr = (Inkscape::CanvasGrid *)iter->data;
554 if ( gr->repr == child ) {
555 delete gr;
556 nv->grids = g_slist_remove_link(nv->grids, iter);
557 break;
558 }
559 }
560 } else {
561 GSList **ref = &nv->guides;
562 for ( GSList *iter = nv->guides ; iter ; iter = iter->next ) {
563 if ( SP_OBJECT_REPR((SPObject *)iter->data) == child ) {
564 *ref = iter->next;
565 iter->next = NULL;
566 g_slist_free_1(iter);
567 break;
568 }
569 ref = &iter->next;
570 }
571 }
573 if (((SPObjectClass *) (parent_class))->remove_child) {
574 (* ((SPObjectClass *) (parent_class))->remove_child)(object, child);
575 }
576 }
578 static Inkscape::XML::Node *sp_namedview_write(SPObject *object, Inkscape::XML::Node *repr, guint flags)
579 {
580 if ( ( flags & SP_OBJECT_WRITE_EXT ) &&
581 repr != SP_OBJECT_REPR(object) )
582 {
583 if (repr) {
584 repr->mergeFrom(SP_OBJECT_REPR(object), "id");
585 } else {
586 /// \todo FIXME: Plumb an appropriate XML::Document into this
587 repr = SP_OBJECT_REPR(object)->duplicate(NULL);
588 }
589 }
591 return repr;
592 }
594 void SPNamedView::show(SPDesktop *desktop)
595 {
596 for (GSList *l = guides; l != NULL; l = l->next) {
597 sp_guide_show(SP_GUIDE(l->data), desktop->guides, (GCallback) sp_dt_guide_event);
598 if (desktop->guides_active) {
599 sp_guide_sensitize(SP_GUIDE(l->data), sp_desktop_canvas(desktop), TRUE);
600 }
601 if (showguides) {
602 for (GSList *v = SP_GUIDE(l->data)->views; v != NULL; v = v->next) {
603 sp_canvas_item_show(SP_CANVAS_ITEM(v->data));
604 }
605 } else {
606 for (GSList *v = SP_GUIDE(l->data)->views; v != NULL; v = v->next) {
607 sp_canvas_item_hide(SP_CANVAS_ITEM(v->data));
608 }
609 }
610 }
612 views = g_slist_prepend(views, desktop);
614 // generate grids specified in SVG:
615 Inkscape::XML::Node *repr = SP_OBJECT_REPR(this);
616 if (repr) {
617 for (Inkscape::XML::Node * child = repr->firstChild() ; child != NULL; child = child->next() ) {
618 if (!strcmp(child->name(), "inkscape:grid")) {
619 sp_namedview_add_grid(this, child, desktop);
620 }
621 }
622 }
624 desktop->showGrids(grids_visible, false);
625 }
627 #define MIN_ONSCREEN_DISTANCE 50
629 /*
630 * Restores window geometry from the document settings or defaults in prefs
631 */
632 void sp_namedview_window_from_document(SPDesktop *desktop)
633 {
634 SPNamedView *nv = desktop->namedview;
635 gint geometry_from_file =
636 (1==prefs_get_int_attribute("options.savewindowgeometry", "value", 0));
638 // restore window size and position stored with the document
639 if (geometry_from_file) {
640 gint w = MIN(gdk_screen_width(), nv->window_width);
641 gint h = MIN(gdk_screen_height(), nv->window_height);
642 gint x = MIN(gdk_screen_width() - MIN_ONSCREEN_DISTANCE, nv->window_x);
643 gint y = MIN(gdk_screen_height() - MIN_ONSCREEN_DISTANCE, nv->window_y);
644 if (w>0 && h>0 && x>0 && y>0) {
645 x = MIN(gdk_screen_width() - w, x);
646 y = MIN(gdk_screen_height() - h, y);
647 }
648 if (w>0 && h>0) {
649 desktop->setWindowSize(w, h);
650 }
651 if (x>0 && y>0) {
652 desktop->setWindowPosition(NR::Point(x, y));
653 }
654 }
656 // restore zoom and view
657 if (nv->zoom != 0 && nv->zoom != HUGE_VAL && !isNaN(nv->zoom)
658 && nv->cx != HUGE_VAL && !isNaN(nv->cx)
659 && nv->cy != HUGE_VAL && !isNaN(nv->cy)) {
660 desktop->zoom_absolute(nv->cx, nv->cy, nv->zoom);
661 } else if (sp_desktop_document(desktop)) { // document without saved zoom, zoom to its page
662 desktop->zoom_page();
663 }
665 // cancel any history of zooms up to this point
666 if (desktop->zooms_past) {
667 g_list_free(desktop->zooms_past);
668 desktop->zooms_past = NULL;
669 }
670 }
672 void sp_namedview_update_layers_from_document (SPDesktop *desktop)
673 {
674 SPObject *layer = NULL;
675 SPDocument *document = desktop->doc();
676 SPNamedView *nv = desktop->namedview;
677 if ( nv->default_layer_id != 0 ) {
678 layer = document->getObjectById(g_quark_to_string(nv->default_layer_id));
679 }
680 // don't use that object if it's not at least group
681 if ( !layer || !SP_IS_GROUP(layer) ) {
682 layer = NULL;
683 }
684 // if that didn't work out, look for the topmost layer
685 if (!layer) {
686 SPObject *iter = sp_object_first_child(SP_DOCUMENT_ROOT(document));
687 for ( ; iter ; iter = SP_OBJECT_NEXT(iter) ) {
688 if (desktop->isLayer(iter)) {
689 layer = iter;
690 }
691 }
692 }
693 if (layer) {
694 desktop->setCurrentLayer(layer);
695 }
697 // FIXME: find a better place to do this
698 desktop->event_log->updateUndoVerbs();
699 }
701 void sp_namedview_document_from_window(SPDesktop *desktop)
702 {
703 gint save_geometry_in_file =
704 (1==prefs_get_int_attribute("options.savewindowgeometry", "value", 0));
705 Inkscape::XML::Node *view = SP_OBJECT_REPR(desktop->namedview);
706 NR::Rect const r = desktop->get_display_area();
708 // saving window geometry is not undoable
709 bool saved = sp_document_get_undo_sensitive(sp_desktop_document(desktop));
710 sp_document_set_undo_sensitive(sp_desktop_document(desktop), false);
712 sp_repr_set_svg_double(view, "inkscape:zoom", desktop->current_zoom());
713 sp_repr_set_svg_double(view, "inkscape:cx", r.midpoint()[NR::X]);
714 sp_repr_set_svg_double(view, "inkscape:cy", r.midpoint()[NR::Y]);
716 if (save_geometry_in_file) {
717 gint w, h, x, y;
718 desktop->getWindowGeometry(x, y, w, h);
719 sp_repr_set_int(view, "inkscape:window-width", w);
720 sp_repr_set_int(view, "inkscape:window-height", h);
721 sp_repr_set_int(view, "inkscape:window-x", x);
722 sp_repr_set_int(view, "inkscape:window-y", y);
723 }
725 view->setAttribute("inkscape:current-layer", SP_OBJECT_ID(desktop->currentLayer()));
727 // restore undoability
728 sp_document_set_undo_sensitive(sp_desktop_document(desktop), saved);
729 }
731 void SPNamedView::hide(SPDesktop const *desktop)
732 {
733 g_assert(desktop != NULL);
734 g_assert(g_slist_find(views, desktop));
736 for (GSList *l = guides; l != NULL; l = l->next) {
737 sp_guide_hide(SP_GUIDE(l->data), sp_desktop_canvas(desktop));
738 }
740 views = g_slist_remove(views, desktop);
742 // delete grids:
743 while ( grids ) {
744 Inkscape::CanvasGrid *gr = (Inkscape::CanvasGrid *)grids->data;
745 delete gr;
746 grids = g_slist_remove_link(grids, grids);
747 }
748 }
750 void SPNamedView::activateGuides(gpointer desktop, gboolean active)
751 {
752 g_assert(desktop != NULL);
753 g_assert(g_slist_find(views, desktop));
755 SPDesktop *dt = static_cast<SPDesktop*>(desktop);
757 for (GSList *l = guides; l != NULL; l = l->next) {
758 sp_guide_sensitize(SP_GUIDE(l->data), sp_desktop_canvas(dt), active);
759 }
760 }
762 static void sp_namedview_setup_guides(SPNamedView *nv)
763 {
764 for (GSList *l = nv->guides; l != NULL; l = l->next) {
765 if (nv->showguides) {
766 for (GSList *v = SP_GUIDE(l->data)->views; v != NULL; v = v->next) {
767 sp_canvas_item_show(SP_CANVAS_ITEM(v->data));
768 }
769 } else {
770 for (GSList *v = SP_GUIDE(l->data)->views; v != NULL; v = v->next) {
771 sp_canvas_item_hide(SP_CANVAS_ITEM(v->data));
772 }
773 }
774 }
775 }
777 void sp_namedview_toggle_guides(SPDocument *doc, Inkscape::XML::Node *repr)
778 {
779 unsigned int v;
780 unsigned int set = sp_repr_get_boolean(repr, "showguides", &v);
781 if (!set) { // hide guides if not specified, for backwards compatibility
782 v = FALSE;
783 } else {
784 v = !v;
785 }
787 bool saved = sp_document_get_undo_sensitive(doc);
788 sp_document_set_undo_sensitive(doc, false);
790 sp_repr_set_boolean(repr, "showguides", v);
792 doc->rroot->setAttribute("sodipodi:modified", "true");
793 sp_document_set_undo_sensitive(doc, saved);
794 }
796 void sp_namedview_show_grids(SPNamedView * namedview, bool show, bool dirty_document)
797 {
798 namedview->grids_visible = show;
800 SPDocument *doc = SP_OBJECT_DOCUMENT (namedview);
801 Inkscape::XML::Node *repr = SP_OBJECT_REPR(namedview);
803 bool saved = sp_document_get_undo_sensitive(doc);
804 sp_document_set_undo_sensitive(doc, false);
806 sp_repr_set_boolean(repr, "showgrid", namedview->grids_visible);
808 /* we don't want the document to get dirty on startup; that's when
809 we call this function with dirty_document = false */
810 if (dirty_document) {
811 doc->rroot->setAttribute("sodipodi:modified", "true");
812 }
813 sp_document_set_undo_sensitive(doc, saved);
814 }
816 gchar const *SPNamedView::getName() const
817 {
818 SPException ex;
819 SP_EXCEPTION_INIT(&ex);
820 return sp_object_getAttribute(SP_OBJECT(this), "id", &ex);
821 }
823 guint SPNamedView::getViewCount()
824 {
825 return ++viewcount;
826 }
828 GSList const *SPNamedView::getViewList() const
829 {
830 return views;
831 }
833 /* This should be moved somewhere */
835 static gboolean sp_str_to_bool(const gchar *str)
836 {
837 if (str) {
838 if (!g_strcasecmp(str, "true") ||
839 !g_strcasecmp(str, "yes") ||
840 !g_strcasecmp(str, "y") ||
841 (atoi(str) != 0)) {
842 return TRUE;
843 }
844 }
846 return FALSE;
847 }
849 /* fixme: Collect all these length parsing methods and think common sane API */
851 static gboolean sp_nv_read_length(const gchar *str, guint base, gdouble *val, const SPUnit **unit)
852 {
853 if (!str) {
854 return FALSE;
855 }
857 gchar *u;
858 gdouble v = g_ascii_strtod(str, &u);
859 if (!u) {
860 return FALSE;
861 }
862 while (isspace(*u)) {
863 u += 1;
864 }
866 if (!*u) {
867 /* No unit specified - keep default */
868 *val = v;
869 return TRUE;
870 }
872 if (base & SP_UNIT_DEVICE) {
873 if (u[0] && u[1] && !isalnum(u[2]) && !strncmp(u, "px", 2)) {
874 *unit = &sp_unit_get_by_id(SP_UNIT_PX);
875 *val = v;
876 return TRUE;
877 }
878 }
880 if (base & SP_UNIT_ABSOLUTE) {
881 if (!strncmp(u, "pt", 2)) {
882 *unit = &sp_unit_get_by_id(SP_UNIT_PT);
883 } else if (!strncmp(u, "mm", 2)) {
884 *unit = &sp_unit_get_by_id(SP_UNIT_MM);
885 } else if (!strncmp(u, "cm", 2)) {
886 *unit = &sp_unit_get_by_id(SP_UNIT_CM);
887 } else if (!strncmp(u, "m", 1)) {
888 *unit = &sp_unit_get_by_id(SP_UNIT_M);
889 } else if (!strncmp(u, "in", 2)) {
890 *unit = &sp_unit_get_by_id(SP_UNIT_IN);
891 } else {
892 return FALSE;
893 }
894 *val = v;
895 return TRUE;
896 }
898 return FALSE;
899 }
901 static gboolean sp_nv_read_opacity(const gchar *str, guint32 *color)
902 {
903 if (!str) {
904 return FALSE;
905 }
907 gchar *u;
908 gdouble v = g_ascii_strtod(str, &u);
909 if (!u) {
910 return FALSE;
911 }
912 v = CLAMP(v, 0.0, 1.0);
914 *color = (*color & 0xffffff00) | (guint32) floor(v * 255.9999);
916 return TRUE;
917 }
919 SPNamedView *sp_document_namedview(SPDocument *document, const gchar *id)
920 {
921 g_return_val_if_fail(document != NULL, NULL);
923 SPObject *nv = sp_item_group_get_child_by_name((SPGroup *) document->root, NULL, "sodipodi:namedview");
924 g_assert(nv != NULL);
926 if (id == NULL) {
927 return (SPNamedView *) nv;
928 }
930 while (nv && strcmp(nv->id, id)) {
931 nv = sp_item_group_get_child_by_name((SPGroup *) document->root, nv, "sodipodi:namedview");
932 }
934 return (SPNamedView *) nv;
935 }
937 /**
938 * Returns namedview's default metric.
939 */
940 SPMetric SPNamedView::getDefaultMetric() const
941 {
942 if (doc_units) {
943 return sp_unit_get_metric(doc_units);
944 } else {
945 return SP_PT;
946 }
947 }
950 /*
951 Local Variables:
952 mode:c++
953 c-file-style:"stroustrup"
954 c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
955 indent-tabs-mode:nil
956 fill-column:99
957 End:
958 */
959 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=99 :