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:object-paths");
162 sp_object_read_attr(object, "inkscape:object-nodes");
163 sp_object_read_attr(object, "inkscape:bbox-paths");
164 sp_object_read_attr(object, "inkscape:bbox-nodes");
165 sp_object_read_attr(object, "inkscape:current-layer");
166 sp_object_read_attr(object, "inkscape:connector-spacing");
168 /* Construct guideline list */
170 for (SPObject *o = sp_object_first_child(SP_OBJECT(og)) ; o != NULL; o = SP_OBJECT_NEXT(o) ) {
171 if (SP_IS_GUIDE(o)) {
172 SPGuide * g = SP_GUIDE(o);
173 nv->guides = g_slist_prepend(nv->guides, g);
174 g_object_set(G_OBJECT(g), "color", nv->guidecolor, "hicolor", nv->guidehicolor, NULL);
175 }
176 }
177 }
179 static void sp_namedview_release(SPObject *object)
180 {
181 SPNamedView *namedview = (SPNamedView *) object;
183 if (namedview->guides) {
184 g_slist_free(namedview->guides);
185 namedview->guides = NULL;
186 }
188 // delete grids:
189 while ( namedview->grids ) {
190 Inkscape::CanvasGrid *gr = (Inkscape::CanvasGrid *)namedview->grids->data;
191 delete gr;
192 namedview->grids = g_slist_remove_link(namedview->grids, namedview->grids);
193 }
195 if (((SPObjectClass *) parent_class)->release) {
196 ((SPObjectClass *) parent_class)->release(object);
197 }
199 namedview->snap_manager.~SnapManager();
200 }
202 static void sp_namedview_set(SPObject *object, unsigned int key, const gchar *value)
203 {
204 SPNamedView *nv = SP_NAMEDVIEW(object);
205 SPUnit const &px = sp_unit_get_by_id(SP_UNIT_PX);
207 switch (key) {
208 case SP_ATTR_VIEWONLY:
209 nv->editable = (!value);
210 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
211 break;
212 case SP_ATTR_SHOWGUIDES:
213 if (!value) { // show guides if not specified, for backwards compatibility
214 nv->showguides = TRUE;
215 } else {
216 nv->showguides = sp_str_to_bool(value);
217 }
218 sp_namedview_setup_guides(nv);
219 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
220 break;
221 case SP_ATTR_SHOWGRIDS:
222 if (!value) { // show grids if not specified, for backwards compatibility
223 nv->grids_visible = false;
224 } else {
225 nv->grids_visible = sp_str_to_bool(value);
226 }
227 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
228 break;
229 case SP_ATTR_GRIDTOLERANCE:
230 nv->gridtoleranceunit = &px;
231 nv->gridtolerance = DEFAULTTOLERANCE;
232 if (value) {
233 sp_nv_read_length(value, SP_UNIT_ABSOLUTE | SP_UNIT_DEVICE, &nv->gridtolerance, &nv->gridtoleranceunit);
234 }
235 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
236 break;
237 case SP_ATTR_GUIDETOLERANCE:
238 nv->guidetoleranceunit = &px;
239 nv->guidetolerance = DEFAULTTOLERANCE;
240 if (value) {
241 sp_nv_read_length(value, SP_UNIT_ABSOLUTE | SP_UNIT_DEVICE, &nv->guidetolerance, &nv->guidetoleranceunit);
242 }
243 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
244 break;
245 case SP_ATTR_OBJECTTOLERANCE:
246 nv->objecttoleranceunit = &px;
247 nv->objecttolerance = DEFAULTTOLERANCE;
248 if (value) {
249 sp_nv_read_length(value, SP_UNIT_ABSOLUTE | SP_UNIT_DEVICE, &nv->objecttolerance, &nv->objecttoleranceunit);
250 }
251 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
252 break;
253 case SP_ATTR_GUIDECOLOR:
254 nv->guidecolor = (nv->guidecolor & 0xff) | (DEFAULTGUIDECOLOR & 0xffffff00);
255 if (value) {
256 nv->guidecolor = (nv->guidecolor & 0xff) | sp_svg_read_color(value, nv->guidecolor);
257 }
258 for (GSList *l = nv->guides; l != NULL; l = l->next) {
259 g_object_set(G_OBJECT(l->data), "color", nv->guidecolor, NULL);
260 }
261 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
262 break;
263 case SP_ATTR_GUIDEOPACITY:
264 nv->guidecolor = (nv->guidecolor & 0xffffff00) | (DEFAULTGUIDECOLOR & 0xff);
265 sp_nv_read_opacity(value, &nv->guidecolor);
266 for (GSList *l = nv->guides; l != NULL; l = l->next) {
267 g_object_set(G_OBJECT(l->data), "color", nv->guidecolor, NULL);
268 }
269 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
270 break;
271 case SP_ATTR_GUIDEHICOLOR:
272 nv->guidehicolor = (nv->guidehicolor & 0xff) | (DEFAULTGUIDEHICOLOR & 0xffffff00);
273 if (value) {
274 nv->guidehicolor = (nv->guidehicolor & 0xff) | sp_svg_read_color(value, nv->guidehicolor);
275 }
276 for (GSList *l = nv->guides; l != NULL; l = l->next) {
277 g_object_set(G_OBJECT(l->data), "hicolor", nv->guidehicolor, NULL);
278 }
279 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
280 break;
281 case SP_ATTR_GUIDEHIOPACITY:
282 nv->guidehicolor = (nv->guidehicolor & 0xffffff00) | (DEFAULTGUIDEHICOLOR & 0xff);
283 sp_nv_read_opacity(value, &nv->guidehicolor);
284 for (GSList *l = nv->guides; l != NULL; l = l->next) {
285 g_object_set(G_OBJECT(l->data), "hicolor", nv->guidehicolor, NULL);
286 }
287 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
288 break;
289 case SP_ATTR_SHOWBORDER:
290 nv->showborder = (value) ? sp_str_to_bool (value) : TRUE;
291 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
292 break;
293 case SP_ATTR_BORDERLAYER:
294 nv->borderlayer = SP_BORDER_LAYER_BOTTOM;
295 if (value && !strcasecmp(value, "true")) nv->borderlayer = SP_BORDER_LAYER_TOP;
296 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
297 break;
298 case SP_ATTR_BORDERCOLOR:
299 nv->bordercolor = (nv->bordercolor & 0xff) | (DEFAULTBORDERCOLOR & 0xffffff00);
300 if (value) {
301 nv->bordercolor = (nv->bordercolor & 0xff) | sp_svg_read_color (value, nv->bordercolor);
302 }
303 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
304 break;
305 case SP_ATTR_BORDEROPACITY:
306 nv->bordercolor = (nv->bordercolor & 0xffffff00) | (DEFAULTBORDERCOLOR & 0xff);
307 sp_nv_read_opacity(value, &nv->bordercolor);
308 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
309 break;
310 case SP_ATTR_PAGECOLOR:
311 nv->pagecolor = (nv->pagecolor & 0xff) | (DEFAULTPAGECOLOR & 0xffffff00);
312 if (value) {
313 nv->pagecolor = (nv->pagecolor & 0xff) | sp_svg_read_color(value, nv->pagecolor);
314 }
315 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
316 break;
317 case SP_ATTR_INKSCAPE_PAGEOPACITY:
318 nv->pagecolor = (nv->pagecolor & 0xffffff00) | (DEFAULTPAGECOLOR & 0xff);
319 sp_nv_read_opacity(value, &nv->pagecolor);
320 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
321 break;
322 case SP_ATTR_INKSCAPE_PAGESHADOW:
323 nv->pageshadow = value? atoi(value) : 2; // 2 is the default
324 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
325 break;
326 case SP_ATTR_SHOWPAGESHADOW:
327 nv->showpageshadow = (value) ? sp_str_to_bool(value) : TRUE;
328 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
329 break;
330 case SP_ATTR_INKSCAPE_ZOOM:
331 nv->zoom = value ? g_ascii_strtod(value, NULL) : 0; // zero means not set
332 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
333 break;
334 case SP_ATTR_INKSCAPE_CX:
335 nv->cx = value ? g_ascii_strtod(value, NULL) : HUGE_VAL; // HUGE_VAL means not set
336 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
337 break;
338 case SP_ATTR_INKSCAPE_CY:
339 nv->cy = value ? g_ascii_strtod(value, NULL) : HUGE_VAL; // HUGE_VAL means not set
340 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
341 break;
342 case SP_ATTR_INKSCAPE_WINDOW_WIDTH:
343 nv->window_width = value? atoi(value) : -1; // -1 means not set
344 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
345 break;
346 case SP_ATTR_INKSCAPE_WINDOW_HEIGHT:
347 nv->window_height = value ? atoi(value) : -1; // -1 means not set
348 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
349 break;
350 case SP_ATTR_INKSCAPE_WINDOW_X:
351 nv->window_x = value ? atoi(value) : -1; // -1 means not set
352 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
353 break;
354 case SP_ATTR_INKSCAPE_WINDOW_Y:
355 nv->window_y = value ? atoi(value) : -1; // -1 means not set
356 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
357 break;
358 case SP_ATTR_INKSCAPE_SNAP_BBOX:
359 nv->snap_manager.setSnapModeBBox(value ? sp_str_to_bool(value) : FALSE);
360 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
361 break;
362 case SP_ATTR_INKSCAPE_SNAP_NODES:
363 nv->snap_manager.setSnapModeNode(value ? sp_str_to_bool(value) : TRUE);
364 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
365 break;
366 case SP_ATTR_INKSCAPE_SNAP_CENTER:
367 nv->snap_manager.setIncludeItemCenter(value ? sp_str_to_bool(value) : FALSE);
368 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
369 break;
370 case SP_ATTR_INKSCAPE_SNAP_GUIDE:
371 nv->snap_manager.setSnapModeGuide(value ? sp_str_to_bool(value) : FALSE);
372 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
373 break;
374 case SP_ATTR_INKSCAPE_OBJECT_PATHS:
375 nv->snap_manager.object.setSnapToItemPath(value ? sp_str_to_bool(value) : FALSE);
376 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
377 break;
378 case SP_ATTR_INKSCAPE_OBJECT_NODES:
379 nv->snap_manager.object.setSnapToItemNode(value ? sp_str_to_bool(value) : FALSE);
380 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
381 break;
382 case SP_ATTR_INKSCAPE_BBOX_PATHS:
383 nv->snap_manager.object.setSnapToBBoxPath(value ? sp_str_to_bool(value) : FALSE);
384 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
385 break;
386 case SP_ATTR_INKSCAPE_BBOX_NODES:
387 nv->snap_manager.object.setSnapToBBoxNode(value ? sp_str_to_bool(value) : FALSE);
388 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
389 break;
390 case SP_ATTR_INKSCAPE_CURRENT_LAYER:
391 nv->default_layer_id = value ? g_quark_from_string(value) : 0;
392 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
393 break;
394 case SP_ATTR_INKSCAPE_CONNECTOR_SPACING:
395 nv->connector_spacing = value ? g_ascii_strtod(value, NULL) :
396 defaultConnSpacing;
397 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
398 break;
399 case SP_ATTR_INKSCAPE_DOCUMENT_UNITS: {
400 /* The default unit if the document doesn't override this: e.g. for files saved as
401 * `plain SVG', or non-inkscape files, or files created by an inkscape 0.40 &
402 * earlier.
403 *
404 * Here we choose `px': useful for screen-destined SVGs, and fewer bug reports
405 * about "not the same numbers as what's in the SVG file" (at least for documents
406 * without a viewBox attribute on the root <svg> element). Similarly, it's also
407 * the most reliable unit (i.e. least likely to be wrong in different viewing
408 * conditions) for viewBox-less SVG files given that it's the unit that inkscape
409 * uses for all coordinates.
410 *
411 * For documents that do have a viewBox attribute on the root <svg> element, it
412 * might be better if we used either viewBox coordinates or if we used the unit of
413 * say the width attribute of the root <svg> element. However, these pose problems
414 * in that they aren't in general absolute units as currently required by
415 * doc_units.
416 */
417 SPUnit const *new_unit = &sp_unit_get_by_id(SP_UNIT_PX);
419 if (value) {
420 SPUnit const *const req_unit = sp_unit_get_by_abbreviation(value);
421 if ( req_unit == NULL ) {
422 g_warning("Unrecognized unit `%s'", value);
423 /* fixme: Document errors should be reported in the status bar or
424 * the like (e.g. as per
425 * http://www.w3.org/TR/SVG11/implnote.html#ErrorProcessing); g_log
426 * should be only for programmer errors. */
427 } else if ( req_unit->base == SP_UNIT_ABSOLUTE ||
428 req_unit->base == SP_UNIT_DEVICE ) {
429 new_unit = req_unit;
430 } else {
431 g_warning("Document units must be absolute like `mm', `pt' or `px', but found `%s'",
432 value);
433 /* fixme: Don't use g_log (see above). */
434 }
435 }
436 nv->doc_units = new_unit;
437 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
438 break;
439 }
440 default:
441 if (((SPObjectClass *) (parent_class))->set) {
442 ((SPObjectClass *) (parent_class))->set(object, key, value);
443 }
444 break;
445 }
446 }
448 /**
449 * 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,
450 * otherwise only add it to the specified desktop.
451 */
452 static Inkscape::CanvasGrid*
453 sp_namedview_add_grid(SPNamedView *nv, Inkscape::XML::Node *repr, SPDesktop *desktop) {
454 Inkscape::CanvasGrid* grid = NULL;
455 //check if namedview already has an object for this grid
456 for (GSList *l = nv->grids; l != NULL; l = l->next) {
457 Inkscape::CanvasGrid* g = (Inkscape::CanvasGrid*) l->data;
458 if (repr == g->repr) {
459 grid = g;
460 break;
461 }
462 }
464 if (!grid) {
465 //create grid object
466 Inkscape::GridType gridtype = Inkscape::CanvasGrid::getGridTypeFromSVGName(repr->attribute("type"));
467 SPDocument *doc = NULL;
468 if (desktop)
469 doc = sp_desktop_document(desktop);
470 else
471 doc = sp_desktop_document(static_cast<SPDesktop*>(nv->views->data));
472 grid = Inkscape::CanvasGrid::NewGrid(nv, repr, doc, gridtype);
473 nv->grids = g_slist_append(nv->grids, grid);
474 //Initialize the snapping parameters for the new grid
475 bool enabled_node = nv->snap_manager.getSnapModeNode();
476 bool enabled_bbox = nv->snap_manager.getSnapModeBBox();
477 grid->snapper->setSnapFrom(Inkscape::Snapper::SNAPPOINT_NODE, enabled_node);
478 grid->snapper->setSnapFrom(Inkscape::Snapper::SNAPPOINT_BBOX, enabled_bbox);
479 }
481 if (!desktop) {
482 //add canvasitem to all desktops
483 for (GSList *l = nv->views; l != NULL; l = l->next) {
484 SPDesktop *dt = static_cast<SPDesktop*>(l->data);
485 grid->createCanvasItem(dt);
486 }
487 } else {
488 //add canvasitem only for specified desktop
489 grid->createCanvasItem(desktop);
490 }
492 return grid;
493 }
495 static void sp_namedview_child_added(SPObject *object, Inkscape::XML::Node *child, Inkscape::XML::Node *ref)
496 {
497 SPNamedView *nv = (SPNamedView *) object;
499 if (((SPObjectClass *) (parent_class))->child_added) {
500 (* ((SPObjectClass *) (parent_class))->child_added)(object, child, ref);
501 }
503 const gchar *id = child->attribute("id");
504 if (!strcmp(child->name(), "inkscape:grid")) {
505 sp_namedview_add_grid(nv, child, NULL);
506 } else {
507 SPObject *no = object->document->getObjectById(id);
508 g_assert(SP_IS_OBJECT(no));
510 if (SP_IS_GUIDE(no)) {
511 SPGuide *g = (SPGuide *) no;
512 nv->guides = g_slist_prepend(nv->guides, g);
513 g_object_set(G_OBJECT(g), "color", nv->guidecolor, "hicolor", nv->guidehicolor, NULL);
514 if (nv->editable) {
515 for (GSList *l = nv->views; l != NULL; l = l->next) {
516 sp_guide_show(g, static_cast<SPDesktop*>(l->data)->guides, (GCallback) sp_dt_guide_event);
517 if (static_cast<SPDesktop*>(l->data)->guides_active)
518 sp_guide_sensitize(g,
519 sp_desktop_canvas(static_cast<SPDesktop*> (l->data)),
520 TRUE);
521 if (nv->showguides) {
522 for (GSList *v = SP_GUIDE(g)->views; v != NULL; v = v->next) {
523 sp_canvas_item_show(SP_CANVAS_ITEM(v->data));
524 }
525 } else {
526 for (GSList *v = SP_GUIDE(g)->views; v != NULL; v = v->next) {
527 sp_canvas_item_hide(SP_CANVAS_ITEM(v->data));
528 }
529 }
530 }
531 }
532 }
533 }
534 }
536 static void sp_namedview_remove_child(SPObject *object, Inkscape::XML::Node *child)
537 {
538 SPNamedView *nv = (SPNamedView *) object;
540 if (!strcmp(child->name(), "inkscape:grid")) {
541 for ( GSList *iter = nv->grids ; iter ; iter = iter->next ) {
542 Inkscape::CanvasGrid *gr = (Inkscape::CanvasGrid *)iter->data;
543 if ( gr->repr == child ) {
544 delete gr;
545 nv->grids = g_slist_remove_link(nv->grids, iter);
546 break;
547 }
548 }
549 } else {
550 GSList **ref = &nv->guides;
551 for ( GSList *iter = nv->guides ; iter ; iter = iter->next ) {
552 if ( SP_OBJECT_REPR((SPObject *)iter->data) == child ) {
553 *ref = iter->next;
554 iter->next = NULL;
555 g_slist_free_1(iter);
556 break;
557 }
558 ref = &iter->next;
559 }
560 }
562 if (((SPObjectClass *) (parent_class))->remove_child) {
563 (* ((SPObjectClass *) (parent_class))->remove_child)(object, child);
564 }
565 }
567 static Inkscape::XML::Node *sp_namedview_write(SPObject *object, Inkscape::XML::Node *repr, guint flags)
568 {
569 if ( ( flags & SP_OBJECT_WRITE_EXT ) &&
570 repr != SP_OBJECT_REPR(object) )
571 {
572 if (repr) {
573 repr->mergeFrom(SP_OBJECT_REPR(object), "id");
574 } else {
575 /// \todo FIXME: Plumb an appropriate XML::Document into this
576 repr = SP_OBJECT_REPR(object)->duplicate(NULL);
577 }
578 }
580 return repr;
581 }
583 void SPNamedView::show(SPDesktop *desktop)
584 {
585 for (GSList *l = guides; l != NULL; l = l->next) {
586 sp_guide_show(SP_GUIDE(l->data), desktop->guides, (GCallback) sp_dt_guide_event);
587 if (desktop->guides_active) {
588 sp_guide_sensitize(SP_GUIDE(l->data), sp_desktop_canvas(desktop), TRUE);
589 }
590 if (showguides) {
591 for (GSList *v = SP_GUIDE(l->data)->views; v != NULL; v = v->next) {
592 sp_canvas_item_show(SP_CANVAS_ITEM(v->data));
593 }
594 } else {
595 for (GSList *v = SP_GUIDE(l->data)->views; v != NULL; v = v->next) {
596 sp_canvas_item_hide(SP_CANVAS_ITEM(v->data));
597 }
598 }
599 }
601 views = g_slist_prepend(views, desktop);
603 // generate grids specified in SVG:
604 Inkscape::XML::Node *repr = SP_OBJECT_REPR(this);
605 if (repr) {
606 for (Inkscape::XML::Node * child = repr->firstChild() ; child != NULL; child = child->next() ) {
607 if (!strcmp(child->name(), "inkscape:grid")) {
608 sp_namedview_add_grid(this, child, desktop);
609 }
610 }
611 }
613 desktop->showGrids(grids_visible);
614 }
616 #define MIN_ONSCREEN_DISTANCE 50
618 /*
619 * Restores window geometry from the document settings or defaults in prefs
620 */
621 void sp_namedview_window_from_document(SPDesktop *desktop)
622 {
623 SPNamedView *nv = desktop->namedview;
624 gint geometry_from_file =
625 (1==prefs_get_int_attribute("options.savewindowgeometry", "value", 0));
627 // restore window size and position stored with the document
628 if (geometry_from_file) {
629 gint w = MIN(gdk_screen_width(), nv->window_width);
630 gint h = MIN(gdk_screen_height(), nv->window_height);
631 gint x = MIN(gdk_screen_width() - MIN_ONSCREEN_DISTANCE, nv->window_x);
632 gint y = MIN(gdk_screen_height() - MIN_ONSCREEN_DISTANCE, nv->window_y);
633 if (w>0 && h>0 && x>0 && y>0) {
634 x = MIN(gdk_screen_width() - w, x);
635 y = MIN(gdk_screen_height() - h, y);
636 }
637 if (w>0 && h>0) {
638 desktop->setWindowSize(w, h);
639 }
640 if (x>0 && y>0) {
641 desktop->setWindowPosition(NR::Point(x, y));
642 }
643 }
645 // restore zoom and view
646 if (nv->zoom != 0 && nv->zoom != HUGE_VAL && !isNaN(nv->zoom)
647 && nv->cx != HUGE_VAL && !isNaN(nv->cx)
648 && nv->cy != HUGE_VAL && !isNaN(nv->cy)) {
649 desktop->zoom_absolute(nv->cx, nv->cy, nv->zoom);
650 } else if (sp_desktop_document(desktop)) { // document without saved zoom, zoom to its page
651 desktop->zoom_page();
652 }
654 // cancel any history of zooms up to this point
655 if (desktop->zooms_past) {
656 g_list_free(desktop->zooms_past);
657 desktop->zooms_past = NULL;
658 }
659 }
661 void sp_namedview_update_layers_from_document (SPDesktop *desktop)
662 {
663 SPObject *layer = NULL;
664 SPDocument *document = desktop->doc();
665 SPNamedView *nv = desktop->namedview;
666 if ( nv->default_layer_id != 0 ) {
667 layer = document->getObjectById(g_quark_to_string(nv->default_layer_id));
668 }
669 // don't use that object if it's not at least group
670 if ( !layer || !SP_IS_GROUP(layer) ) {
671 layer = NULL;
672 }
673 // if that didn't work out, look for the topmost layer
674 if (!layer) {
675 SPObject *iter = sp_object_first_child(SP_DOCUMENT_ROOT(document));
676 for ( ; iter ; iter = SP_OBJECT_NEXT(iter) ) {
677 if (desktop->isLayer(iter)) {
678 layer = iter;
679 }
680 }
681 }
682 if (layer) {
683 desktop->setCurrentLayer(layer);
684 }
686 // FIXME: find a better place to do this
687 desktop->event_log->updateUndoVerbs();
688 }
690 void sp_namedview_document_from_window(SPDesktop *desktop)
691 {
692 gint save_geometry_in_file =
693 (1==prefs_get_int_attribute("options.savewindowgeometry", "value", 0));
694 Inkscape::XML::Node *view = SP_OBJECT_REPR(desktop->namedview);
695 NR::Rect const r = desktop->get_display_area();
697 // saving window geometry is not undoable
698 bool saved = sp_document_get_undo_sensitive(sp_desktop_document(desktop));
699 sp_document_set_undo_sensitive(sp_desktop_document(desktop), false);
701 sp_repr_set_svg_double(view, "inkscape:zoom", desktop->current_zoom());
702 sp_repr_set_svg_double(view, "inkscape:cx", r.midpoint()[NR::X]);
703 sp_repr_set_svg_double(view, "inkscape:cy", r.midpoint()[NR::Y]);
705 if (save_geometry_in_file) {
706 gint w, h, x, y;
707 desktop->getWindowGeometry(x, y, w, h);
708 sp_repr_set_int(view, "inkscape:window-width", w);
709 sp_repr_set_int(view, "inkscape:window-height", h);
710 sp_repr_set_int(view, "inkscape:window-x", x);
711 sp_repr_set_int(view, "inkscape:window-y", y);
712 }
714 view->setAttribute("inkscape:current-layer", SP_OBJECT_ID(desktop->currentLayer()));
716 // restore undoability
717 sp_document_set_undo_sensitive(sp_desktop_document(desktop), saved);
718 }
720 void SPNamedView::hide(SPDesktop const *desktop)
721 {
722 g_assert(desktop != NULL);
723 g_assert(g_slist_find(views, desktop));
725 for (GSList *l = guides; l != NULL; l = l->next) {
726 sp_guide_hide(SP_GUIDE(l->data), sp_desktop_canvas(desktop));
727 }
729 views = g_slist_remove(views, desktop);
731 // delete grids:
732 while ( grids ) {
733 Inkscape::CanvasGrid *gr = (Inkscape::CanvasGrid *)grids->data;
734 delete gr;
735 grids = g_slist_remove_link(grids, grids);
736 }
737 }
739 void SPNamedView::activateGuides(gpointer desktop, gboolean active)
740 {
741 g_assert(desktop != NULL);
742 g_assert(g_slist_find(views, desktop));
744 SPDesktop *dt = static_cast<SPDesktop*>(desktop);
746 for (GSList *l = guides; l != NULL; l = l->next) {
747 sp_guide_sensitize(SP_GUIDE(l->data), sp_desktop_canvas(dt), active);
748 }
749 }
751 static void sp_namedview_setup_guides(SPNamedView *nv)
752 {
753 for (GSList *l = nv->guides; l != NULL; l = l->next) {
754 if (nv->showguides) {
755 for (GSList *v = SP_GUIDE(l->data)->views; v != NULL; v = v->next) {
756 sp_canvas_item_show(SP_CANVAS_ITEM(v->data));
757 }
758 } else {
759 for (GSList *v = SP_GUIDE(l->data)->views; v != NULL; v = v->next) {
760 sp_canvas_item_hide(SP_CANVAS_ITEM(v->data));
761 }
762 }
763 }
764 }
766 void sp_namedview_toggle_guides(SPDocument *doc, Inkscape::XML::Node *repr)
767 {
768 unsigned int v;
769 unsigned int set = sp_repr_get_boolean(repr, "showguides", &v);
770 if (!set) { // hide guides if not specified, for backwards compatibility
771 v = FALSE;
772 } else {
773 v = !v;
774 }
776 bool saved = sp_document_get_undo_sensitive(doc);
777 sp_document_set_undo_sensitive(doc, false);
779 sp_repr_set_boolean(repr, "showguides", v);
781 doc->rroot->setAttribute("sodipodi:modified", "true");
782 sp_document_set_undo_sensitive(doc, saved);
783 }
785 void sp_namedview_show_grids(SPNamedView * namedview, bool show)
786 {
787 namedview->grids_visible = show;
789 SPDocument *doc = SP_OBJECT_DOCUMENT (namedview);
790 Inkscape::XML::Node *repr = SP_OBJECT_REPR(namedview);
792 bool saved = sp_document_get_undo_sensitive(doc);
793 sp_document_set_undo_sensitive(doc, false);
795 sp_repr_set_boolean(repr, "showgrid", namedview->grids_visible);
797 doc->rroot->setAttribute("sodipodi:modified", "true");
798 sp_document_set_undo_sensitive(doc, saved);
799 }
801 gchar const *SPNamedView::getName() const
802 {
803 SPException ex;
804 SP_EXCEPTION_INIT(&ex);
805 return sp_object_getAttribute(SP_OBJECT(this), "id", &ex);
806 }
808 guint SPNamedView::getViewCount()
809 {
810 return ++viewcount;
811 }
813 GSList const *SPNamedView::getViewList() const
814 {
815 return views;
816 }
818 /* This should be moved somewhere */
820 static gboolean sp_str_to_bool(const gchar *str)
821 {
822 if (str) {
823 if (!g_strcasecmp(str, "true") ||
824 !g_strcasecmp(str, "yes") ||
825 !g_strcasecmp(str, "y") ||
826 (atoi(str) != 0)) {
827 return TRUE;
828 }
829 }
831 return FALSE;
832 }
834 /* fixme: Collect all these length parsing methods and think common sane API */
836 static gboolean sp_nv_read_length(const gchar *str, guint base, gdouble *val, const SPUnit **unit)
837 {
838 if (!str) {
839 return FALSE;
840 }
842 gchar *u;
843 gdouble v = g_ascii_strtod(str, &u);
844 if (!u) {
845 return FALSE;
846 }
847 while (isspace(*u)) {
848 u += 1;
849 }
851 if (!*u) {
852 /* No unit specified - keep default */
853 *val = v;
854 return TRUE;
855 }
857 if (base & SP_UNIT_DEVICE) {
858 if (u[0] && u[1] && !isalnum(u[2]) && !strncmp(u, "px", 2)) {
859 *unit = &sp_unit_get_by_id(SP_UNIT_PX);
860 *val = v;
861 return TRUE;
862 }
863 }
865 if (base & SP_UNIT_ABSOLUTE) {
866 if (!strncmp(u, "pt", 2)) {
867 *unit = &sp_unit_get_by_id(SP_UNIT_PT);
868 } else if (!strncmp(u, "mm", 2)) {
869 *unit = &sp_unit_get_by_id(SP_UNIT_MM);
870 } else if (!strncmp(u, "cm", 2)) {
871 *unit = &sp_unit_get_by_id(SP_UNIT_CM);
872 } else if (!strncmp(u, "m", 1)) {
873 *unit = &sp_unit_get_by_id(SP_UNIT_M);
874 } else if (!strncmp(u, "in", 2)) {
875 *unit = &sp_unit_get_by_id(SP_UNIT_IN);
876 } else {
877 return FALSE;
878 }
879 *val = v;
880 return TRUE;
881 }
883 return FALSE;
884 }
886 static gboolean sp_nv_read_opacity(const gchar *str, guint32 *color)
887 {
888 if (!str) {
889 return FALSE;
890 }
892 gchar *u;
893 gdouble v = g_ascii_strtod(str, &u);
894 if (!u) {
895 return FALSE;
896 }
897 v = CLAMP(v, 0.0, 1.0);
899 *color = (*color & 0xffffff00) | (guint32) floor(v * 255.9999);
901 return TRUE;
902 }
904 SPNamedView *sp_document_namedview(SPDocument *document, const gchar *id)
905 {
906 g_return_val_if_fail(document != NULL, NULL);
908 SPObject *nv = sp_item_group_get_child_by_name((SPGroup *) document->root, NULL, "sodipodi:namedview");
909 g_assert(nv != NULL);
911 if (id == NULL) {
912 return (SPNamedView *) nv;
913 }
915 while (nv && strcmp(nv->id, id)) {
916 nv = sp_item_group_get_child_by_name((SPGroup *) document->root, nv, "sodipodi:namedview");
917 }
919 return (SPNamedView *) nv;
920 }
922 /**
923 * Returns namedview's default metric.
924 */
925 SPMetric SPNamedView::getDefaultMetric() const
926 {
927 if (doc_units) {
928 return sp_unit_get_metric(doc_units);
929 } else {
930 return SP_PT;
931 }
932 }
935 /*
936 Local Variables:
937 mode:c++
938 c-file-style:"stroustrup"
939 c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
940 indent-tabs-mode:nil
941 fill-column:99
942 End:
943 */
944 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=99 :