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, "gridtolerance");
135 sp_object_read_attr(object, "guidetolerance");
136 sp_object_read_attr(object, "objecttolerance");
137 sp_object_read_attr(object, "guidecolor");
138 sp_object_read_attr(object, "guideopacity");
139 sp_object_read_attr(object, "guidehicolor");
140 sp_object_read_attr(object, "guidehiopacity");
141 sp_object_read_attr(object, "showborder");
142 sp_object_read_attr(object, "inkscape:showpageshadow");
143 sp_object_read_attr(object, "borderlayer");
144 sp_object_read_attr(object, "bordercolor");
145 sp_object_read_attr(object, "borderopacity");
146 sp_object_read_attr(object, "pagecolor");
147 sp_object_read_attr(object, "inkscape:pageopacity");
148 sp_object_read_attr(object, "inkscape:pageshadow");
149 sp_object_read_attr(object, "inkscape:zoom");
150 sp_object_read_attr(object, "inkscape:cx");
151 sp_object_read_attr(object, "inkscape:cy");
152 sp_object_read_attr(object, "inkscape:window-width");
153 sp_object_read_attr(object, "inkscape:window-height");
154 sp_object_read_attr(object, "inkscape:window-x");
155 sp_object_read_attr(object, "inkscape:window-y");
156 /* sp_object_read_attr(object, "inkscape:grid-bbox");
157 sp_object_read_attr(object, "inkscape:guide-bbox");
158 sp_object_read_attr(object, "inkscape:object-bbox");
159 sp_object_read_attr(object, "inkscape:grid-points");
160 sp_object_read_attr(object, "inkscape:guide-points");
161 sp_object_read_attr(object, "inkscape:object-points");*/
162 sp_object_read_attr(object, "inkscape:object-paths");
163 sp_object_read_attr(object, "inkscape:object-nodes");
164 sp_object_read_attr(object, "inkscape:current-layer");
165 sp_object_read_attr(object, "inkscape:connector-spacing");
167 /* Construct guideline list */
169 for (SPObject *o = sp_object_first_child(SP_OBJECT(og)) ; o != NULL; o = SP_OBJECT_NEXT(o) ) {
170 if (SP_IS_GUIDE(o)) {
171 SPGuide * g = SP_GUIDE(o);
172 nv->guides = g_slist_prepend(nv->guides, g);
173 g_object_set(G_OBJECT(g), "color", nv->guidecolor, "hicolor", nv->guidehicolor, NULL);
174 }
175 }
176 }
178 static void sp_namedview_release(SPObject *object)
179 {
180 SPNamedView *namedview = (SPNamedView *) object;
182 if (namedview->guides) {
183 g_slist_free(namedview->guides);
184 namedview->guides = NULL;
185 }
187 // delete grids:
188 while ( namedview->grids ) {
189 Inkscape::CanvasGrid *gr = (Inkscape::CanvasGrid *)namedview->grids->data;
190 delete gr;
191 namedview->grids = g_slist_remove_link(namedview->grids, namedview->grids);
192 }
194 if (((SPObjectClass *) parent_class)->release) {
195 ((SPObjectClass *) parent_class)->release(object);
196 }
198 namedview->snap_manager.~SnapManager();
199 }
201 static void sp_namedview_set(SPObject *object, unsigned int key, const gchar *value)
202 {
203 SPNamedView *nv = SP_NAMEDVIEW(object);
204 SPUnit const &px = sp_unit_get_by_id(SP_UNIT_PX);
206 switch (key) {
207 case SP_ATTR_VIEWONLY:
208 nv->editable = (!value);
209 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
210 break;
211 case SP_ATTR_SHOWGUIDES:
212 if (!value) { // show guides if not specified, for backwards compatibility
213 nv->showguides = TRUE;
214 } else {
215 nv->showguides = sp_str_to_bool(value);
216 }
217 sp_namedview_setup_guides(nv);
218 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
219 break;
220 case SP_ATTR_GRIDTOLERANCE:
221 nv->gridtoleranceunit = &px;
222 nv->gridtolerance = DEFAULTTOLERANCE;
223 if (value) {
224 sp_nv_read_length(value, SP_UNIT_ABSOLUTE | SP_UNIT_DEVICE, &nv->gridtolerance, &nv->gridtoleranceunit);
225 }
226 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
227 break;
228 case SP_ATTR_GUIDETOLERANCE:
229 nv->guidetoleranceunit = &px;
230 nv->guidetolerance = DEFAULTTOLERANCE;
231 if (value) {
232 sp_nv_read_length(value, SP_UNIT_ABSOLUTE | SP_UNIT_DEVICE, &nv->guidetolerance, &nv->guidetoleranceunit);
233 }
234 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
235 break;
236 case SP_ATTR_OBJECTTOLERANCE:
237 nv->objecttoleranceunit = &px;
238 nv->objecttolerance = DEFAULTTOLERANCE;
239 if (value) {
240 sp_nv_read_length(value, SP_UNIT_ABSOLUTE | SP_UNIT_DEVICE, &nv->objecttolerance, &nv->objecttoleranceunit);
241 }
242 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
243 break;
244 case SP_ATTR_GUIDECOLOR:
245 nv->guidecolor = (nv->guidecolor & 0xff) | (DEFAULTGUIDECOLOR & 0xffffff00);
246 if (value) {
247 nv->guidecolor = (nv->guidecolor & 0xff) | sp_svg_read_color(value, nv->guidecolor);
248 }
249 for (GSList *l = nv->guides; l != NULL; l = l->next) {
250 g_object_set(G_OBJECT(l->data), "color", nv->guidecolor, NULL);
251 }
252 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
253 break;
254 case SP_ATTR_GUIDEOPACITY:
255 nv->guidecolor = (nv->guidecolor & 0xffffff00) | (DEFAULTGUIDECOLOR & 0xff);
256 sp_nv_read_opacity(value, &nv->guidecolor);
257 for (GSList *l = nv->guides; l != NULL; l = l->next) {
258 g_object_set(G_OBJECT(l->data), "color", nv->guidecolor, NULL);
259 }
260 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
261 break;
262 case SP_ATTR_GUIDEHICOLOR:
263 nv->guidehicolor = (nv->guidehicolor & 0xff) | (DEFAULTGUIDEHICOLOR & 0xffffff00);
264 if (value) {
265 nv->guidehicolor = (nv->guidehicolor & 0xff) | sp_svg_read_color(value, nv->guidehicolor);
266 }
267 for (GSList *l = nv->guides; l != NULL; l = l->next) {
268 g_object_set(G_OBJECT(l->data), "hicolor", nv->guidehicolor, NULL);
269 }
270 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
271 break;
272 case SP_ATTR_GUIDEHIOPACITY:
273 nv->guidehicolor = (nv->guidehicolor & 0xffffff00) | (DEFAULTGUIDEHICOLOR & 0xff);
274 sp_nv_read_opacity(value, &nv->guidehicolor);
275 for (GSList *l = nv->guides; l != NULL; l = l->next) {
276 g_object_set(G_OBJECT(l->data), "hicolor", nv->guidehicolor, NULL);
277 }
278 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
279 break;
280 case SP_ATTR_SHOWBORDER:
281 nv->showborder = (value) ? sp_str_to_bool (value) : TRUE;
282 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
283 break;
284 case SP_ATTR_BORDERLAYER:
285 nv->borderlayer = SP_BORDER_LAYER_BOTTOM;
286 if (value && !strcasecmp(value, "true")) nv->borderlayer = SP_BORDER_LAYER_TOP;
287 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
288 break;
289 case SP_ATTR_BORDERCOLOR:
290 nv->bordercolor = (nv->bordercolor & 0xff) | (DEFAULTBORDERCOLOR & 0xffffff00);
291 if (value) {
292 nv->bordercolor = (nv->bordercolor & 0xff) | sp_svg_read_color (value, nv->bordercolor);
293 }
294 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
295 break;
296 case SP_ATTR_BORDEROPACITY:
297 nv->bordercolor = (nv->bordercolor & 0xffffff00) | (DEFAULTBORDERCOLOR & 0xff);
298 sp_nv_read_opacity(value, &nv->bordercolor);
299 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
300 break;
301 case SP_ATTR_PAGECOLOR:
302 nv->pagecolor = (nv->pagecolor & 0xff) | (DEFAULTPAGECOLOR & 0xffffff00);
303 if (value) {
304 nv->pagecolor = (nv->pagecolor & 0xff) | sp_svg_read_color(value, nv->pagecolor);
305 }
306 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
307 break;
308 case SP_ATTR_INKSCAPE_PAGEOPACITY:
309 nv->pagecolor = (nv->pagecolor & 0xffffff00) | (DEFAULTPAGECOLOR & 0xff);
310 sp_nv_read_opacity(value, &nv->pagecolor);
311 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
312 break;
313 case SP_ATTR_INKSCAPE_PAGESHADOW:
314 nv->pageshadow = value? atoi(value) : 2; // 2 is the default
315 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
316 break;
317 case SP_ATTR_SHOWPAGESHADOW:
318 nv->showpageshadow = (value) ? sp_str_to_bool(value) : TRUE;
319 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
320 break;
321 case SP_ATTR_INKSCAPE_ZOOM:
322 nv->zoom = value ? g_ascii_strtod(value, NULL) : 0; // zero means not set
323 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
324 break;
325 case SP_ATTR_INKSCAPE_CX:
326 nv->cx = value ? g_ascii_strtod(value, NULL) : HUGE_VAL; // HUGE_VAL means not set
327 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
328 break;
329 case SP_ATTR_INKSCAPE_CY:
330 nv->cy = value ? g_ascii_strtod(value, NULL) : HUGE_VAL; // HUGE_VAL means not set
331 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
332 break;
333 case SP_ATTR_INKSCAPE_WINDOW_WIDTH:
334 nv->window_width = value? atoi(value) : -1; // -1 means not set
335 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
336 break;
337 case SP_ATTR_INKSCAPE_WINDOW_HEIGHT:
338 nv->window_height = value ? atoi(value) : -1; // -1 means not set
339 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
340 break;
341 case SP_ATTR_INKSCAPE_WINDOW_X:
342 nv->window_x = value ? atoi(value) : -1; // -1 means not set
343 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
344 break;
345 case SP_ATTR_INKSCAPE_WINDOW_Y:
346 nv->window_y = value ? atoi(value) : -1; // -1 means not set
347 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
348 break;
349 case SP_ATTR_INKSCAPE_OBJECT_PATHS:
350 nv->snap_manager.object.setSnapToPaths(value ? sp_str_to_bool(value) : FALSE);
351 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
352 break;
353 case SP_ATTR_INKSCAPE_OBJECT_NODES:
354 nv->snap_manager.object.setSnapToNodes(value ? sp_str_to_bool(value) : FALSE);
355 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
356 break;
357 case SP_ATTR_INKSCAPE_CURRENT_LAYER:
358 nv->default_layer_id = value ? g_quark_from_string(value) : 0;
359 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
360 break;
361 case SP_ATTR_INKSCAPE_CONNECTOR_SPACING:
362 nv->connector_spacing = value ? g_ascii_strtod(value, NULL) :
363 defaultConnSpacing;
364 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
365 break;
366 case SP_ATTR_INKSCAPE_DOCUMENT_UNITS: {
367 /* The default unit if the document doesn't override this: e.g. for files saved as
368 * `plain SVG', or non-inkscape files, or files created by an inkscape 0.40 &
369 * earlier.
370 *
371 * Here we choose `px': useful for screen-destined SVGs, and fewer bug reports
372 * about "not the same numbers as what's in the SVG file" (at least for documents
373 * without a viewBox attribute on the root <svg> element). Similarly, it's also
374 * the most reliable unit (i.e. least likely to be wrong in different viewing
375 * conditions) for viewBox-less SVG files given that it's the unit that inkscape
376 * uses for all coordinates.
377 *
378 * For documents that do have a viewBox attribute on the root <svg> element, it
379 * might be better if we used either viewBox coordinates or if we used the unit of
380 * say the width attribute of the root <svg> element. However, these pose problems
381 * in that they aren't in general absolute units as currently required by
382 * doc_units.
383 */
384 SPUnit const *new_unit = &sp_unit_get_by_id(SP_UNIT_PX);
386 if (value) {
387 SPUnit const *const req_unit = sp_unit_get_by_abbreviation(value);
388 if ( req_unit == NULL ) {
389 g_warning("Unrecognized unit `%s'", value);
390 /* fixme: Document errors should be reported in the status bar or
391 * the like (e.g. as per
392 * http://www.w3.org/TR/SVG11/implnote.html#ErrorProcessing); g_log
393 * should be only for programmer errors. */
394 } else if ( req_unit->base == SP_UNIT_ABSOLUTE ||
395 req_unit->base == SP_UNIT_DEVICE ) {
396 new_unit = req_unit;
397 } else {
398 g_warning("Document units must be absolute like `mm', `pt' or `px', but found `%s'",
399 value);
400 /* fixme: Don't use g_log (see above). */
401 }
402 }
403 nv->doc_units = new_unit;
404 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
405 break;
406 }
407 default:
408 if (((SPObjectClass *) (parent_class))->set) {
409 ((SPObjectClass *) (parent_class))->set(object, key, value);
410 }
411 break;
412 }
413 }
415 /**
416 * 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,
417 * otherwise only add it to the specified desktop.
418 */
419 static Inkscape::CanvasGrid*
420 sp_namedview_add_grid(SPNamedView *nv, Inkscape::XML::Node *repr, SPDesktop *desktop) {
421 Inkscape::CanvasGrid* grid = NULL;
422 //check if namedview already has an object for this grid
423 for (GSList *l = nv->grids; l != NULL; l = l->next) {
424 Inkscape::CanvasGrid* g = (Inkscape::CanvasGrid*) l->data;
425 if (repr == g->repr) {
426 grid = g;
427 break;
428 }
429 }
431 if (!grid) {
432 //create grid object
433 Inkscape::GridType gridtype = Inkscape::CanvasGrid::getGridTypeFromSVGName(repr->attribute("type"));
434 grid = Inkscape::CanvasGrid::NewGrid(nv, repr, gridtype);
435 nv->grids = g_slist_append(nv->grids, grid);
436 }
438 if (!desktop) {
439 //add canvasitem to all desktops
440 for (GSList *l = nv->views; l != NULL; l = l->next) {
441 SPDesktop *dt = static_cast<SPDesktop*>(l->data);
442 grid->createCanvasItem(dt);
443 }
444 } else {
445 //add canvasitem only for specified desktop
446 grid->createCanvasItem(desktop);
447 }
449 return grid;
450 }
452 static void sp_namedview_child_added(SPObject *object, Inkscape::XML::Node *child, Inkscape::XML::Node *ref)
453 {
454 SPNamedView *nv = (SPNamedView *) object;
456 if (((SPObjectClass *) (parent_class))->child_added) {
457 (* ((SPObjectClass *) (parent_class))->child_added)(object, child, ref);
458 }
460 const gchar *id = child->attribute("id");
461 if (!strcmp(child->name(), "inkscape:grid")) {
462 sp_namedview_add_grid(nv, child, NULL);
463 } else {
464 SPObject *no = object->document->getObjectById(id);
465 g_assert(SP_IS_OBJECT(no));
467 if (SP_IS_GUIDE(no)) {
468 SPGuide *g = (SPGuide *) no;
469 nv->guides = g_slist_prepend(nv->guides, g);
470 g_object_set(G_OBJECT(g), "color", nv->guidecolor, "hicolor", nv->guidehicolor, NULL);
471 if (nv->editable) {
472 for (GSList *l = nv->views; l != NULL; l = l->next) {
473 sp_guide_show(g, static_cast<SPDesktop*>(l->data)->guides, (GCallback) sp_dt_guide_event);
474 if (static_cast<SPDesktop*>(l->data)->guides_active)
475 sp_guide_sensitize(g,
476 sp_desktop_canvas(static_cast<SPDesktop*> (l->data)),
477 TRUE);
478 if (nv->showguides) {
479 for (GSList *v = SP_GUIDE(g)->views; v != NULL; v = v->next) {
480 sp_canvas_item_show(SP_CANVAS_ITEM(v->data));
481 }
482 } else {
483 for (GSList *v = SP_GUIDE(g)->views; v != NULL; v = v->next) {
484 sp_canvas_item_hide(SP_CANVAS_ITEM(v->data));
485 }
486 }
487 }
488 }
489 }
490 }
491 }
493 static void sp_namedview_remove_child(SPObject *object, Inkscape::XML::Node *child)
494 {
495 SPNamedView *nv = (SPNamedView *) object;
497 if (!strcmp(child->name(), "inkscape:grid")) {
498 for ( GSList *iter = nv->grids ; iter ; iter = iter->next ) {
499 Inkscape::CanvasGrid *gr = (Inkscape::CanvasGrid *)iter->data;
500 if ( gr->repr == child ) {
501 delete gr;
502 nv->grids = g_slist_remove_link(nv->grids, iter);
503 break;
504 }
505 }
506 } else {
507 GSList **ref = &nv->guides;
508 for ( GSList *iter = nv->guides ; iter ; iter = iter->next ) {
509 if ( SP_OBJECT_REPR((SPObject *)iter->data) == child ) {
510 *ref = iter->next;
511 iter->next = NULL;
512 g_slist_free_1(iter);
513 break;
514 }
515 ref = &iter->next;
516 }
517 }
519 if (((SPObjectClass *) (parent_class))->remove_child) {
520 (* ((SPObjectClass *) (parent_class))->remove_child)(object, child);
521 }
522 }
524 static Inkscape::XML::Node *sp_namedview_write(SPObject *object, Inkscape::XML::Node *repr, guint flags)
525 {
526 if ( ( flags & SP_OBJECT_WRITE_EXT ) &&
527 repr != SP_OBJECT_REPR(object) )
528 {
529 if (repr) {
530 repr->mergeFrom(SP_OBJECT_REPR(object), "id");
531 } else {
532 /// \todo FIXME: Plumb an appropriate XML::Document into this
533 repr = SP_OBJECT_REPR(object)->duplicate(NULL);
534 }
535 }
537 return repr;
538 }
540 void SPNamedView::show(SPDesktop *desktop)
541 {
542 for (GSList *l = guides; l != NULL; l = l->next) {
543 sp_guide_show(SP_GUIDE(l->data), desktop->guides, (GCallback) sp_dt_guide_event);
544 if (desktop->guides_active) {
545 sp_guide_sensitize(SP_GUIDE(l->data), sp_desktop_canvas(desktop), TRUE);
546 }
547 if (showguides) {
548 for (GSList *v = SP_GUIDE(l->data)->views; v != NULL; v = v->next) {
549 sp_canvas_item_show(SP_CANVAS_ITEM(v->data));
550 }
551 } else {
552 for (GSList *v = SP_GUIDE(l->data)->views; v != NULL; v = v->next) {
553 sp_canvas_item_hide(SP_CANVAS_ITEM(v->data));
554 }
555 }
556 }
558 views = g_slist_prepend(views, desktop);
560 // generate grids specified in SVG:
561 Inkscape::XML::Node *repr = SP_OBJECT_REPR(this);
562 if (repr) {
563 for (Inkscape::XML::Node * child = repr->firstChild() ; child != NULL; child = child->next() ) {
564 if (!strcmp(child->name(), "inkscape:grid")) {
565 sp_namedview_add_grid(this, child, desktop);
566 }
567 }
568 }
569 }
571 #define MIN_ONSCREEN_DISTANCE 50
573 /*
574 * Restores window geometry from the document settings or defaults in prefs
575 */
576 void sp_namedview_window_from_document(SPDesktop *desktop)
577 {
578 SPNamedView *nv = desktop->namedview;
579 gint geometry_from_file =
580 (1==prefs_get_int_attribute("options.savewindowgeometry", "value", 0));
582 // restore window size and position stored with the document
583 if (geometry_from_file) {
584 gint w = MIN(gdk_screen_width(), nv->window_width);
585 gint h = MIN(gdk_screen_height(), nv->window_height);
586 gint x = MIN(gdk_screen_width() - MIN_ONSCREEN_DISTANCE, nv->window_x);
587 gint y = MIN(gdk_screen_height() - MIN_ONSCREEN_DISTANCE, nv->window_y);
588 if (w>0 && h>0 && x>0 && y>0) {
589 x = MIN(gdk_screen_width() - w, x);
590 y = MIN(gdk_screen_height() - h, y);
591 }
592 if (w>0 && h>0) {
593 desktop->setWindowSize(w, h);
594 }
595 if (x>0 && y>0) {
596 desktop->setWindowPosition(NR::Point(x, y));
597 }
598 }
600 // restore zoom and view
601 if (nv->zoom != 0 && nv->zoom != HUGE_VAL && !isNaN(nv->zoom)
602 && nv->cx != HUGE_VAL && !isNaN(nv->cx)
603 && nv->cy != HUGE_VAL && !isNaN(nv->cy)) {
604 desktop->zoom_absolute(nv->cx, nv->cy, nv->zoom);
605 } else if (sp_desktop_document(desktop)) { // document without saved zoom, zoom to its page
606 desktop->zoom_page();
607 }
609 // cancel any history of zooms up to this point
610 if (desktop->zooms_past) {
611 g_list_free(desktop->zooms_past);
612 desktop->zooms_past = NULL;
613 }
614 }
616 void sp_namedview_update_layers_from_document (SPDesktop *desktop)
617 {
618 SPObject *layer = NULL;
619 SPDocument *document = desktop->doc();
620 SPNamedView *nv = desktop->namedview;
621 if ( nv->default_layer_id != 0 ) {
622 layer = document->getObjectById(g_quark_to_string(nv->default_layer_id));
623 }
624 // don't use that object if it's not at least group
625 if ( !layer || !SP_IS_GROUP(layer) ) {
626 layer = NULL;
627 }
628 // if that didn't work out, look for the topmost layer
629 if (!layer) {
630 SPObject *iter = sp_object_first_child(SP_DOCUMENT_ROOT(document));
631 for ( ; iter ; iter = SP_OBJECT_NEXT(iter) ) {
632 if (desktop->isLayer(iter)) {
633 layer = iter;
634 }
635 }
636 }
637 if (layer) {
638 desktop->setCurrentLayer(layer);
639 }
641 // FIXME: find a better place to do this
642 desktop->event_log->updateUndoVerbs();
643 }
645 void sp_namedview_document_from_window(SPDesktop *desktop)
646 {
647 gint save_geometry_in_file =
648 (1==prefs_get_int_attribute("options.savewindowgeometry", "value", 0));
649 Inkscape::XML::Node *view = SP_OBJECT_REPR(desktop->namedview);
650 NR::Rect const r = desktop->get_display_area();
652 // saving window geometry is not undoable
653 bool saved = sp_document_get_undo_sensitive(sp_desktop_document(desktop));
654 sp_document_set_undo_sensitive(sp_desktop_document(desktop), false);
656 sp_repr_set_svg_double(view, "inkscape:zoom", desktop->current_zoom());
657 sp_repr_set_svg_double(view, "inkscape:cx", r.midpoint()[NR::X]);
658 sp_repr_set_svg_double(view, "inkscape:cy", r.midpoint()[NR::Y]);
660 if (save_geometry_in_file) {
661 gint w, h, x, y;
662 desktop->getWindowGeometry(x, y, w, h);
663 sp_repr_set_int(view, "inkscape:window-width", w);
664 sp_repr_set_int(view, "inkscape:window-height", h);
665 sp_repr_set_int(view, "inkscape:window-x", x);
666 sp_repr_set_int(view, "inkscape:window-y", y);
667 }
669 view->setAttribute("inkscape:current-layer", SP_OBJECT_ID(desktop->currentLayer()));
671 // restore undoability
672 sp_document_set_undo_sensitive(sp_desktop_document(desktop), saved);
673 }
675 void SPNamedView::hide(SPDesktop const *desktop)
676 {
677 g_assert(desktop != NULL);
678 g_assert(g_slist_find(views, desktop));
680 for (GSList *l = guides; l != NULL; l = l->next) {
681 sp_guide_hide(SP_GUIDE(l->data), sp_desktop_canvas(desktop));
682 }
684 views = g_slist_remove(views, desktop);
686 // delete grids:
687 while ( grids ) {
688 Inkscape::CanvasGrid *gr = (Inkscape::CanvasGrid *)grids->data;
689 delete gr;
690 grids = g_slist_remove_link(grids, grids);
691 }
692 }
694 void SPNamedView::activateGuides(gpointer desktop, gboolean active)
695 {
696 g_assert(desktop != NULL);
697 g_assert(g_slist_find(views, desktop));
699 SPDesktop *dt = static_cast<SPDesktop*>(desktop);
701 for (GSList *l = guides; l != NULL; l = l->next) {
702 sp_guide_sensitize(SP_GUIDE(l->data), sp_desktop_canvas(dt), active);
703 }
704 }
706 static void sp_namedview_setup_guides(SPNamedView *nv)
707 {
708 for (GSList *l = nv->guides; l != NULL; l = l->next) {
709 if (nv->showguides) {
710 for (GSList *v = SP_GUIDE(l->data)->views; v != NULL; v = v->next) {
711 sp_canvas_item_show(SP_CANVAS_ITEM(v->data));
712 }
713 } else {
714 for (GSList *v = SP_GUIDE(l->data)->views; v != NULL; v = v->next) {
715 sp_canvas_item_hide(SP_CANVAS_ITEM(v->data));
716 }
717 }
718 }
719 }
721 void sp_namedview_toggle_guides(SPDocument *doc, Inkscape::XML::Node *repr)
722 {
723 unsigned int v;
724 unsigned int set = sp_repr_get_boolean(repr, "showguides", &v);
725 if (!set) { // hide guides if not specified, for backwards compatibility
726 v = FALSE;
727 } else {
728 v = !v;
729 }
731 bool saved = sp_document_get_undo_sensitive(doc);
732 sp_document_set_undo_sensitive(doc, false);
734 sp_repr_set_boolean(repr, "showguides", v);
736 doc->rroot->setAttribute("sodipodi:modified", "true");
737 sp_document_set_undo_sensitive(doc, saved);
738 }
740 gchar const *SPNamedView::getName() const
741 {
742 SPException ex;
743 SP_EXCEPTION_INIT(&ex);
744 return sp_object_getAttribute(SP_OBJECT(this), "id", &ex);
745 }
747 guint SPNamedView::getViewCount()
748 {
749 return ++viewcount;
750 }
752 GSList const *SPNamedView::getViewList() const
753 {
754 return views;
755 }
757 /* This should be moved somewhere */
759 static gboolean sp_str_to_bool(const gchar *str)
760 {
761 if (str) {
762 if (!g_strcasecmp(str, "true") ||
763 !g_strcasecmp(str, "yes") ||
764 !g_strcasecmp(str, "y") ||
765 (atoi(str) != 0)) {
766 return TRUE;
767 }
768 }
770 return FALSE;
771 }
773 /* fixme: Collect all these length parsing methods and think common sane API */
775 static gboolean sp_nv_read_length(const gchar *str, guint base, gdouble *val, const SPUnit **unit)
776 {
777 if (!str) {
778 return FALSE;
779 }
781 gchar *u;
782 gdouble v = g_ascii_strtod(str, &u);
783 if (!u) {
784 return FALSE;
785 }
786 while (isspace(*u)) {
787 u += 1;
788 }
790 if (!*u) {
791 /* No unit specified - keep default */
792 *val = v;
793 return TRUE;
794 }
796 if (base & SP_UNIT_DEVICE) {
797 if (u[0] && u[1] && !isalnum(u[2]) && !strncmp(u, "px", 2)) {
798 *unit = &sp_unit_get_by_id(SP_UNIT_PX);
799 *val = v;
800 return TRUE;
801 }
802 }
804 if (base & SP_UNIT_ABSOLUTE) {
805 if (!strncmp(u, "pt", 2)) {
806 *unit = &sp_unit_get_by_id(SP_UNIT_PT);
807 } else if (!strncmp(u, "mm", 2)) {
808 *unit = &sp_unit_get_by_id(SP_UNIT_MM);
809 } else if (!strncmp(u, "cm", 2)) {
810 *unit = &sp_unit_get_by_id(SP_UNIT_CM);
811 } else if (!strncmp(u, "m", 1)) {
812 *unit = &sp_unit_get_by_id(SP_UNIT_M);
813 } else if (!strncmp(u, "in", 2)) {
814 *unit = &sp_unit_get_by_id(SP_UNIT_IN);
815 } else {
816 return FALSE;
817 }
818 *val = v;
819 return TRUE;
820 }
822 return FALSE;
823 }
825 static gboolean sp_nv_read_opacity(const gchar *str, guint32 *color)
826 {
827 if (!str) {
828 return FALSE;
829 }
831 gchar *u;
832 gdouble v = g_ascii_strtod(str, &u);
833 if (!u) {
834 return FALSE;
835 }
836 v = CLAMP(v, 0.0, 1.0);
838 *color = (*color & 0xffffff00) | (guint32) floor(v * 255.9999);
840 return TRUE;
841 }
843 SPNamedView *sp_document_namedview(SPDocument *document, const gchar *id)
844 {
845 g_return_val_if_fail(document != NULL, NULL);
847 SPObject *nv = sp_item_group_get_child_by_name((SPGroup *) document->root, NULL, "sodipodi:namedview");
848 g_assert(nv != NULL);
850 if (id == NULL) {
851 return (SPNamedView *) nv;
852 }
854 while (nv && strcmp(nv->id, id)) {
855 nv = sp_item_group_get_child_by_name((SPGroup *) document->root, nv, "sodipodi:namedview");
856 }
858 return (SPNamedView *) nv;
859 }
861 /**
862 * Returns namedview's default metric.
863 */
864 SPMetric SPNamedView::getDefaultMetric() const
865 {
866 if (doc_units) {
867 return sp_unit_get_metric(doc_units);
868 } else {
869 return SP_PT;
870 }
871 }
874 /*
875 Local Variables:
876 mode:c++
877 c-file-style:"stroustrup"
878 c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
879 indent-tabs-mode:nil
880 fill-column:99
881 End:
882 */
883 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=99 :