129ef2c8c9a0128faa73bb6487e14fbd725f031a
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) 1999-2005 Authors
11 * Copyright (C) 2000-2001 Ximian, Inc.
12 *
13 * Released under GNU GPL, read the file 'COPYING' for more information
14 */
16 #include "config.h"
18 #include "display/canvas-grid.h"
19 #include "helper/units.h"
20 #include "svg/svg-color.h"
21 #include "xml/repr.h"
22 #include "attributes.h"
23 #include "document.h"
24 #include "desktop-events.h"
25 #include "desktop-handles.h"
26 #include "sp-guide.h"
27 #include "sp-item-group.h"
28 #include "sp-namedview.h"
29 #include "prefs-utils.h"
30 #include "desktop.h"
31 #include "conn-avoid-ref.h" // for defaultConnSpacing.
33 #include "isnan.h" //temp fix for isnan(). include last
35 #define DEFAULTTOLERANCE 0.4
36 #define DEFAULTGRIDCOLOR 0x3f3fff25
37 #define DEFAULTGRIDEMPCOLOR 0x3f3fff60
38 #define DEFAULTGRIDEMPSPACING 5
39 #define DEFAULTGUIDECOLOR 0x0000ff7f
40 #define DEFAULTGUIDEHICOLOR 0xff00007f
41 #define DEFAULTBORDERCOLOR 0x000000ff
42 #define DEFAULTPAGECOLOR 0xffffff00
44 static void sp_namedview_class_init(SPNamedViewClass *klass);
45 static void sp_namedview_init(SPNamedView *namedview);
47 static void sp_namedview_build(SPObject *object, SPDocument *document, Inkscape::XML::Node *repr);
48 static void sp_namedview_release(SPObject *object);
49 static void sp_namedview_set(SPObject *object, unsigned int key, const gchar *value);
50 static void sp_namedview_child_added(SPObject *object, Inkscape::XML::Node *child, Inkscape::XML::Node *ref);
51 static void sp_namedview_remove_child(SPObject *object, Inkscape::XML::Node *child);
52 static Inkscape::XML::Node *sp_namedview_write(SPObject *object, Inkscape::XML::Node *repr, guint flags);
54 static void sp_namedview_setup_guides(SPNamedView * nv);
56 static void sp_namedview_setup_grid(SPNamedView * nv);
57 static void sp_namedview_setup_grid_item(SPNamedView * nv, SPCanvasItem * item);
59 static gboolean sp_str_to_bool(const gchar *str);
60 static gboolean sp_nv_read_length(const gchar *str, guint base, gdouble *val, const SPUnit **unit);
61 static gboolean sp_nv_read_opacity(const gchar *str, guint32 *color);
63 static SPObjectGroupClass * parent_class;
65 GType
66 sp_namedview_get_type()
67 {
68 static GType namedview_type = 0;
69 if (!namedview_type) {
70 GTypeInfo namedview_info = {
71 sizeof(SPNamedViewClass),
72 NULL, /* base_init */
73 NULL, /* base_finalize */
74 (GClassInitFunc) sp_namedview_class_init,
75 NULL, /* class_finalize */
76 NULL, /* class_data */
77 sizeof(SPNamedView),
78 16, /* n_preallocs */
79 (GInstanceInitFunc) sp_namedview_init,
80 NULL, /* value_table */
81 };
82 namedview_type = g_type_register_static(SP_TYPE_OBJECTGROUP, "SPNamedView", &namedview_info, (GTypeFlags)0);
83 }
84 return namedview_type;
85 }
87 static void sp_namedview_class_init(SPNamedViewClass * klass)
88 {
89 GObjectClass * gobject_class;
90 SPObjectClass * sp_object_class;
92 gobject_class = (GObjectClass *) klass;
93 sp_object_class = (SPObjectClass *) klass;
95 parent_class = (SPObjectGroupClass*) g_type_class_ref(SP_TYPE_OBJECTGROUP);
97 sp_object_class->build = sp_namedview_build;
98 sp_object_class->release = sp_namedview_release;
99 sp_object_class->set = sp_namedview_set;
100 sp_object_class->child_added = sp_namedview_child_added;
101 sp_object_class->remove_child = sp_namedview_remove_child;
102 sp_object_class->write = sp_namedview_write;
103 }
105 static void sp_namedview_init(SPNamedView *nv)
106 {
107 nv->editable = TRUE;
108 nv->showgrid = FALSE;
109 nv->showguides = TRUE;
110 nv->showborder = TRUE;
111 nv->showpageshadow = TRUE;
113 nv->guides = NULL;
114 nv->viewcount = 0;
116 nv->default_layer_id = 0;
118 nv->connector_spacing = defaultConnSpacing;
120 new (&nv->snap_manager) SnapManager(nv);
121 }
123 static void sp_namedview_build(SPObject *object, SPDocument *document, Inkscape::XML::Node *repr)
124 {
125 SPNamedView *nv = (SPNamedView *) object;
126 SPObjectGroup *og = (SPObjectGroup *) object;
128 if (((SPObjectClass *) (parent_class))->build) {
129 (* ((SPObjectClass *) (parent_class))->build)(object, document, repr);
130 }
132 sp_object_read_attr(object, "inkscape:document-units");
133 sp_object_read_attr(object, "viewonly");
134 sp_object_read_attr(object, "showgrid");
135 sp_object_read_attr(object, "showguides");
136 sp_object_read_attr(object, "gridtolerance");
137 sp_object_read_attr(object, "guidetolerance");
138 sp_object_read_attr(object, "objecttolerance");
139 sp_object_read_attr(object, "inkscape:has_abs_tolerance");
140 sp_object_read_attr(object, "gridoriginx");
141 sp_object_read_attr(object, "gridoriginy");
142 sp_object_read_attr(object, "gridspacingx");
143 sp_object_read_attr(object, "gridspacingy");
144 sp_object_read_attr(object, "gridempspacing");
145 sp_object_read_attr(object, "gridcolor");
146 sp_object_read_attr(object, "gridempcolor");
147 sp_object_read_attr(object, "gridopacity");
148 sp_object_read_attr(object, "gridempopacity");
149 sp_object_read_attr(object, "guidecolor");
150 sp_object_read_attr(object, "guideopacity");
151 sp_object_read_attr(object, "guidehicolor");
152 sp_object_read_attr(object, "guidehiopacity");
153 sp_object_read_attr(object, "showborder");
154 sp_object_read_attr(object, "inkscape:showpageshadow");
155 sp_object_read_attr(object, "borderlayer");
156 sp_object_read_attr(object, "bordercolor");
157 sp_object_read_attr(object, "borderopacity");
158 sp_object_read_attr(object, "pagecolor");
159 sp_object_read_attr(object, "inkscape:pageopacity");
160 sp_object_read_attr(object, "inkscape:pageshadow");
161 sp_object_read_attr(object, "inkscape:zoom");
162 sp_object_read_attr(object, "inkscape:cx");
163 sp_object_read_attr(object, "inkscape:cy");
164 sp_object_read_attr(object, "inkscape:window-width");
165 sp_object_read_attr(object, "inkscape:window-height");
166 sp_object_read_attr(object, "inkscape:window-x");
167 sp_object_read_attr(object, "inkscape:window-y");
168 sp_object_read_attr(object, "inkscape:grid-bbox");
169 sp_object_read_attr(object, "inkscape:guide-bbox");
170 sp_object_read_attr(object, "inkscape:object-bbox");
171 sp_object_read_attr(object, "inkscape:grid-points");
172 sp_object_read_attr(object, "inkscape:guide-points");
173 sp_object_read_attr(object, "inkscape:object-points");
174 sp_object_read_attr(object, "inkscape:object-paths");
175 sp_object_read_attr(object, "inkscape:object-nodes");
176 sp_object_read_attr(object, "inkscape:current-layer");
177 sp_object_read_attr(object, "inkscape:connector-spacing");
179 /* Construct guideline list */
181 for (SPObject *o = sp_object_first_child(SP_OBJECT(og)) ; o != NULL; o = SP_OBJECT_NEXT(o) ) {
182 if (SP_IS_GUIDE(o)) {
183 SPGuide * g = SP_GUIDE(o);
184 nv->guides = g_slist_prepend(nv->guides, g);
185 g_object_set(G_OBJECT(g), "color", nv->guidecolor, "hicolor", nv->guidehicolor, NULL);
186 }
187 }
188 }
190 static void sp_namedview_release(SPObject *object)
191 {
192 SPNamedView *namedview = (SPNamedView *) object;
194 if (namedview->guides) {
195 g_slist_free(namedview->guides);
196 namedview->guides = NULL;
197 }
199 while (namedview->gridviews) {
200 gtk_object_unref(GTK_OBJECT(namedview->gridviews->data));
201 namedview->gridviews = g_slist_remove(namedview->gridviews, namedview->gridviews->data);
202 }
204 if (((SPObjectClass *) parent_class)->release) {
205 ((SPObjectClass *) parent_class)->release(object);
206 }
208 namedview->snap_manager.~SnapManager();
209 }
211 static void sp_namedview_set(SPObject *object, unsigned int key, const gchar *value)
212 {
213 SPNamedView *nv = SP_NAMEDVIEW(object);
214 SPUnit const &px = sp_unit_get_by_id(SP_UNIT_PX);
216 switch (key) {
217 case SP_ATTR_VIEWONLY:
218 nv->editable = (!value);
219 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
220 break;
221 case SP_ATTR_SHOWGRID:
222 nv->showgrid = sp_str_to_bool(value);
223 sp_namedview_setup_grid(nv);
224 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
225 break;
226 case SP_ATTR_SHOWGUIDES:
227 if (!value) { // show guides if not specified, for backwards compatibility
228 nv->showguides = TRUE;
229 } else {
230 nv->showguides = sp_str_to_bool(value);
231 }
232 sp_namedview_setup_guides(nv);
233 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
234 break;
235 case SP_ATTR_GRIDTOLERANCE:
236 nv->gridtoleranceunit = &px;
237 nv->gridtolerance = DEFAULTTOLERANCE;
238 if (value) {
239 sp_nv_read_length(value, SP_UNIT_ABSOLUTE | SP_UNIT_DEVICE, &nv->gridtolerance, &nv->gridtoleranceunit);
240 }
241 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
242 break;
243 case SP_ATTR_GUIDETOLERANCE:
244 nv->guidetoleranceunit = &px;
245 nv->guidetolerance = DEFAULTTOLERANCE;
246 if (value) {
247 sp_nv_read_length(value, SP_UNIT_ABSOLUTE | SP_UNIT_DEVICE, &nv->guidetolerance, &nv->guidetoleranceunit);
248 }
249 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
250 break;
251 case SP_ATTR_OBJECTTOLERANCE:
252 nv->objecttoleranceunit = &px;
253 nv->objecttolerance = DEFAULTTOLERANCE;
254 if (value) {
255 sp_nv_read_length(value, SP_UNIT_ABSOLUTE | SP_UNIT_DEVICE, &nv->objecttolerance, &nv->objecttoleranceunit);
256 }
257 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
258 break;
259 case SP_ATTR_ABS_TOLERANCE:
260 if (!value)
261 nv->has_abs_tolerance = true;
262 else
263 nv->has_abs_tolerance = (sp_str_to_bool (value) == TRUE);
264 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
265 break;
266 case SP_ATTR_GRIDORIGINX:
267 case SP_ATTR_GRIDORIGINY:
268 {
269 unsigned const d = (key == SP_ATTR_GRIDORIGINY);
270 nv->gridunit = nv->doc_units;
271 nv->gridorigin[d] = 0.0;
272 if (value) {
273 sp_nv_read_length(value, SP_UNIT_ABSOLUTE | SP_UNIT_DEVICE, &nv->gridorigin[d], &nv->gridunit);
274 }
275 nv->gridorigin[d] = sp_units_get_pixels(nv->gridorigin[d], *(nv->gridunit));
276 sp_namedview_setup_grid(nv);
277 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
278 break;
279 }
280 case SP_ATTR_GRIDSPACINGX:
281 case SP_ATTR_GRIDSPACINGY:
282 {
283 unsigned const d = (key == SP_ATTR_GRIDSPACINGY);
284 nv->gridunit = nv->doc_units;
285 nv->gridspacing[d] = 1.0;
286 if (value) {
287 sp_nv_read_length(value, SP_UNIT_ABSOLUTE | SP_UNIT_DEVICE, &nv->gridspacing[d], &nv->gridunit);
288 }
289 nv->gridspacing[d] = sp_units_get_pixels(nv->gridspacing[d], *(nv->gridunit));
290 sp_namedview_setup_grid(nv);
291 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
292 break;
293 }
294 case SP_ATTR_GRIDCOLOR:
295 nv->gridcolor = (nv->gridcolor & 0xff) | (DEFAULTGRIDCOLOR & 0xffffff00);
296 if (value) {
297 nv->gridcolor = (nv->gridcolor & 0xff) | sp_svg_read_color(value, nv->gridcolor);
298 }
299 sp_namedview_setup_grid(nv);
300 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
301 break;
302 case SP_ATTR_GRIDEMPCOLOR:
303 nv->gridempcolor = (nv->gridempcolor & 0xff) | (DEFAULTGRIDEMPCOLOR & 0xffffff00);
304 if (value) {
305 nv->gridempcolor = (nv->gridempcolor & 0xff) | sp_svg_read_color(value, nv->gridempcolor);
306 }
307 sp_namedview_setup_grid(nv);
308 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
309 break;
310 case SP_ATTR_GRIDOPACITY:
311 nv->gridcolor = (nv->gridcolor & 0xffffff00) | (DEFAULTGRIDCOLOR & 0xff);
312 sp_nv_read_opacity(value, &nv->gridcolor);
313 sp_namedview_setup_grid(nv);
314 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
315 break;
316 case SP_ATTR_GRIDEMPOPACITY:
317 nv->gridempcolor = (nv->gridempcolor & 0xffffff00) | (DEFAULTGRIDEMPCOLOR & 0xff);
318 sp_nv_read_opacity(value, &nv->gridempcolor);
319 sp_namedview_setup_grid(nv);
320 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
321 break;
322 case SP_ATTR_GRIDEMPSPACING:
323 nv->gridempspacing = DEFAULTGRIDEMPSPACING;
324 if (value != NULL)
325 nv->gridempspacing = atoi(value);
326 sp_namedview_setup_grid(nv);
327 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
328 break;
329 case SP_ATTR_GUIDECOLOR:
330 nv->guidecolor = (nv->guidecolor & 0xff) | (DEFAULTGUIDECOLOR & 0xffffff00);
331 if (value) {
332 nv->guidecolor = (nv->guidecolor & 0xff) | sp_svg_read_color(value, nv->guidecolor);
333 }
334 for (GSList *l = nv->guides; l != NULL; l = l->next) {
335 g_object_set(G_OBJECT(l->data), "color", nv->guidecolor, NULL);
336 }
337 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
338 break;
339 case SP_ATTR_GUIDEOPACITY:
340 nv->guidecolor = (nv->guidecolor & 0xffffff00) | (DEFAULTGUIDECOLOR & 0xff);
341 sp_nv_read_opacity(value, &nv->guidecolor);
342 for (GSList *l = nv->guides; l != NULL; l = l->next) {
343 g_object_set(G_OBJECT(l->data), "color", nv->guidecolor, NULL);
344 }
345 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
346 break;
347 case SP_ATTR_GUIDEHICOLOR:
348 nv->guidehicolor = (nv->guidehicolor & 0xff) | (DEFAULTGUIDEHICOLOR & 0xffffff00);
349 if (value) {
350 nv->guidehicolor = (nv->guidehicolor & 0xff) | sp_svg_read_color(value, nv->guidehicolor);
351 }
352 for (GSList *l = nv->guides; l != NULL; l = l->next) {
353 g_object_set(G_OBJECT(l->data), "hicolor", nv->guidehicolor, NULL);
354 }
355 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
356 break;
357 case SP_ATTR_GUIDEHIOPACITY:
358 nv->guidehicolor = (nv->guidehicolor & 0xffffff00) | (DEFAULTGUIDEHICOLOR & 0xff);
359 sp_nv_read_opacity(value, &nv->guidehicolor);
360 for (GSList *l = nv->guides; l != NULL; l = l->next) {
361 g_object_set(G_OBJECT(l->data), "hicolor", nv->guidehicolor, NULL);
362 }
363 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
364 break;
365 case SP_ATTR_SHOWBORDER:
366 nv->showborder = (value) ? sp_str_to_bool (value) : TRUE;
367 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
368 break;
369 case SP_ATTR_BORDERLAYER:
370 nv->borderlayer = SP_BORDER_LAYER_BOTTOM;
371 if (value && !strcasecmp(value, "true")) nv->borderlayer = SP_BORDER_LAYER_TOP;
372 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
373 break;
374 case SP_ATTR_BORDERCOLOR:
375 nv->bordercolor = (nv->bordercolor & 0xff) | (DEFAULTBORDERCOLOR & 0xffffff00);
376 if (value) {
377 nv->bordercolor = (nv->bordercolor & 0xff) | sp_svg_read_color (value, nv->bordercolor);
378 }
379 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
380 break;
381 case SP_ATTR_BORDEROPACITY:
382 nv->bordercolor = (nv->bordercolor & 0xffffff00) | (DEFAULTBORDERCOLOR & 0xff);
383 sp_nv_read_opacity(value, &nv->bordercolor);
384 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
385 break;
386 case SP_ATTR_PAGECOLOR:
387 nv->pagecolor = (nv->pagecolor & 0xff) | (DEFAULTPAGECOLOR & 0xffffff00);
388 if (value) {
389 nv->pagecolor = (nv->pagecolor & 0xff) | sp_svg_read_color(value, nv->pagecolor);
390 }
391 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
392 break;
393 case SP_ATTR_INKSCAPE_PAGEOPACITY:
394 nv->pagecolor = (nv->pagecolor & 0xffffff00) | (DEFAULTPAGECOLOR & 0xff);
395 sp_nv_read_opacity(value, &nv->pagecolor);
396 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
397 break;
398 case SP_ATTR_INKSCAPE_PAGESHADOW:
399 nv->pageshadow = value? atoi(value) : 2; // 2 is the default
400 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
401 break;
402 case SP_ATTR_SHOWPAGESHADOW:
403 nv->showpageshadow = (value) ? sp_str_to_bool(value) : TRUE;
404 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
405 break;
406 case SP_ATTR_INKSCAPE_ZOOM:
407 nv->zoom = value ? g_ascii_strtod(value, NULL) : 0; // zero means not set
408 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
409 break;
410 case SP_ATTR_INKSCAPE_CX:
411 nv->cx = value ? g_ascii_strtod(value, NULL) : HUGE_VAL; // HUGE_VAL means not set
412 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
413 break;
414 case SP_ATTR_INKSCAPE_CY:
415 nv->cy = value ? g_ascii_strtod(value, NULL) : HUGE_VAL; // HUGE_VAL means not set
416 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
417 break;
418 case SP_ATTR_INKSCAPE_WINDOW_WIDTH:
419 nv->window_width = value? atoi(value) : -1; // -1 means not set
420 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
421 break;
422 case SP_ATTR_INKSCAPE_WINDOW_HEIGHT:
423 nv->window_height = value ? atoi(value) : -1; // -1 means not set
424 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
425 break;
426 case SP_ATTR_INKSCAPE_WINDOW_X:
427 nv->window_x = value ? atoi(value) : -1; // -1 means not set
428 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
429 break;
430 case SP_ATTR_INKSCAPE_WINDOW_Y:
431 nv->window_y = value ? atoi(value) : -1; // -1 means not set
432 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
433 break;
434 case SP_ATTR_INKSCAPE_GRID_BBOX:
435 nv->snap_manager.grid.setSnapTo(Inkscape::Snapper::BBOX_POINT, value ? sp_str_to_bool(value) : TRUE);
436 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
437 break;
438 case SP_ATTR_INKSCAPE_GRID_POINTS:
439 nv->snap_manager.grid.setSnapTo(Inkscape::Snapper::SNAP_POINT, value ? sp_str_to_bool(value) : FALSE);
440 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
441 break;
442 case SP_ATTR_INKSCAPE_GUIDE_BBOX:
443 nv->snap_manager.guide.setSnapTo(Inkscape::Snapper::BBOX_POINT, value ? sp_str_to_bool(value) : TRUE);
444 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
445 break;
446 case SP_ATTR_INKSCAPE_GUIDE_POINTS:
447 nv->snap_manager.guide.setSnapTo(Inkscape::Snapper::SNAP_POINT, value ? sp_str_to_bool(value) : FALSE);
448 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
449 break;
450 case SP_ATTR_INKSCAPE_OBJECT_BBOX:
451 nv->snap_manager.object.setSnapTo(Inkscape::Snapper::BBOX_POINT, (value) ? sp_str_to_bool(value) : FALSE);
452 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
453 break;
454 case SP_ATTR_INKSCAPE_OBJECT_POINTS:
455 nv->snap_manager.object.setSnapTo(Inkscape::Snapper::SNAP_POINT, (value) ? sp_str_to_bool(value) : FALSE);
456 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
457 break;
458 case SP_ATTR_INKSCAPE_OBJECT_PATHS:
459 nv->snap_manager.object.setSnapToPaths(value ? sp_str_to_bool(value) : TRUE);
460 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
461 break;
462 case SP_ATTR_INKSCAPE_OBJECT_NODES:
463 nv->snap_manager.object.setSnapToNodes(value ? sp_str_to_bool(value) : TRUE);
464 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
465 break;
466 case SP_ATTR_INKSCAPE_CURRENT_LAYER:
467 nv->default_layer_id = value ? g_quark_from_string(value) : 0;
468 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
469 break;
470 case SP_ATTR_INKSCAPE_CONNECTOR_SPACING:
471 nv->connector_spacing = value ? g_ascii_strtod(value, NULL) :
472 defaultConnSpacing;
473 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
474 break;
475 case SP_ATTR_INKSCAPE_DOCUMENT_UNITS: {
476 /* The default unit if the document doesn't override this: e.g. for files saved as
477 * `plain SVG', or non-inkscape files, or files created by an inkscape 0.40 &
478 * earlier.
479 *
480 * Here we choose `px': useful for screen-destined SVGs, and fewer bug reports
481 * about "not the same numbers as what's in the SVG file" (at least for documents
482 * without a viewBox attribute on the root <svg> element). Similarly, it's also
483 * the most reliable unit (i.e. least likely to be wrong in different viewing
484 * conditions) for viewBox-less SVG files given that it's the unit that inkscape
485 * uses for all coordinates.
486 *
487 * For documents that do have a viewBox attribute on the root <svg> element, it
488 * might be better if we used either viewBox coordinates or if we used the unit of
489 * say the width attribute of the root <svg> element. However, these pose problems
490 * in that they aren't in general absolute units as currently required by
491 * doc_units.
492 */
493 SPUnit const *new_unit = &sp_unit_get_by_id(SP_UNIT_PX);
495 if (value) {
496 SPUnit const *const req_unit = sp_unit_get_by_abbreviation(value);
497 if ( req_unit == NULL ) {
498 g_warning("Unrecognized unit `%s'", value);
499 /* fixme: Document errors should be reported in the status bar or
500 * the like (e.g. as per
501 * http://www.w3.org/TR/SVG11/implnote.html#ErrorProcessing); g_log
502 * should be only for programmer errors. */
503 } else if ( req_unit->base == SP_UNIT_ABSOLUTE ||
504 req_unit->base == SP_UNIT_DEVICE ) {
505 new_unit = req_unit;
506 } else {
507 g_warning("Document units must be absolute like `mm', `pt' or `px', but found `%s'",
508 value);
509 /* fixme: Don't use g_log (see above). */
510 }
511 }
512 nv->doc_units = new_unit;
513 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
514 break;
515 }
516 default:
517 if (((SPObjectClass *) (parent_class))->set) {
518 ((SPObjectClass *) (parent_class))->set(object, key, value);
519 }
520 break;
521 }
522 }
524 static void sp_namedview_child_added(SPObject *object, Inkscape::XML::Node *child, Inkscape::XML::Node *ref)
525 {
526 SPNamedView *nv = (SPNamedView *) object;
528 if (((SPObjectClass *) (parent_class))->child_added) {
529 (* ((SPObjectClass *) (parent_class))->child_added)(object, child, ref);
530 }
532 const gchar *id = child->attribute("id");
533 SPObject *no = object->document->getObjectById(id);
534 g_assert(SP_IS_OBJECT(no));
536 if (SP_IS_GUIDE(no)) {
537 SPGuide *g = (SPGuide *) no;
538 nv->guides = g_slist_prepend(nv->guides, g);
539 g_object_set(G_OBJECT(g), "color", nv->guidecolor, "hicolor", nv->guidehicolor, NULL);
540 if (nv->editable) {
541 for (GSList *l = nv->views; l != NULL; l = l->next) {
542 sp_guide_show(g, static_cast<SPDesktop*>(l->data)->guides, (GCallback) sp_dt_guide_event);
543 if (static_cast<SPDesktop*>(l->data)->guides_active)
544 sp_guide_sensitize(g,
545 sp_desktop_canvas(static_cast<SPDesktop*> (l->data)),
546 TRUE);
547 if (nv->showguides) {
548 for (GSList *v = SP_GUIDE(g)->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(g)->views; v != NULL; v = v->next) {
553 sp_canvas_item_hide(SP_CANVAS_ITEM(v->data));
554 }
555 }
556 }
557 }
558 }
559 }
561 static void sp_namedview_remove_child(SPObject *object, Inkscape::XML::Node *child)
562 {
563 SPNamedView *nv = (SPNamedView *) object;
565 GSList **ref = &nv->guides;
566 for ( GSList *iter = nv->guides ; iter ; iter = iter->next ) {
567 if ( SP_OBJECT_REPR((SPObject *)iter->data) == child ) {
568 *ref = iter->next;
569 iter->next = NULL;
570 g_slist_free_1(iter);
571 break;
572 }
573 ref = &iter->next;
574 }
576 if (((SPObjectClass *) (parent_class))->remove_child) {
577 (* ((SPObjectClass *) (parent_class))->remove_child)(object, child);
578 }
579 }
581 static Inkscape::XML::Node *sp_namedview_write(SPObject *object, Inkscape::XML::Node *repr, guint flags)
582 {
583 if ( ( flags & SP_OBJECT_WRITE_EXT ) &&
584 repr != SP_OBJECT_REPR(object) )
585 {
586 if (repr) {
587 repr->mergeFrom(SP_OBJECT_REPR(object), "id");
588 } else {
589 repr = SP_OBJECT_REPR(object)->duplicate();
590 }
591 }
593 return repr;
594 }
596 void SPNamedView::show(SPDesktop *desktop)
597 {
598 for (GSList *l = guides; l != NULL; l = l->next) {
599 sp_guide_show(SP_GUIDE(l->data), desktop->guides, (GCallback) sp_dt_guide_event);
600 if (desktop->guides_active) {
601 sp_guide_sensitize(SP_GUIDE(l->data), sp_desktop_canvas(desktop), TRUE);
602 }
603 if (showguides) {
604 for (GSList *v = SP_GUIDE(l->data)->views; v != NULL; v = v->next) {
605 sp_canvas_item_show(SP_CANVAS_ITEM(v->data));
606 }
607 } else {
608 for (GSList *v = SP_GUIDE(l->data)->views; v != NULL; v = v->next) {
609 sp_canvas_item_hide(SP_CANVAS_ITEM(v->data));
610 }
611 }
612 }
614 views = g_slist_prepend(views, desktop);
616 SPCanvasItem *item = sp_canvas_item_new(sp_desktop_grid(desktop), SP_TYPE_CGRID, NULL);
617 // since we're keeping a copy, we need to bump up the ref count
618 gtk_object_ref(GTK_OBJECT(item));
619 gridviews = g_slist_prepend(gridviews, item);
620 sp_namedview_setup_grid_item(this, item);
621 }
623 /*
624 * Restores window geometry from the document settings
625 */
626 void sp_namedview_window_from_document(SPDesktop *desktop)
627 {
628 SPNamedView *nv = desktop->namedview;
629 gint save_geometry = prefs_get_int_attribute("options.savewindowgeometry", "value", 0);
631 // restore window size and position
632 if (save_geometry) {
633 if (nv->window_width != -1 && nv->window_height != -1)
634 desktop->setWindowSize(nv->window_width, nv->window_height);
635 if (nv->window_x != -1 && nv->window_y != -1)
636 desktop->setWindowPosition(NR::Point(nv->window_x, nv->window_y));
637 }
639 // restore zoom and view
640 if (nv->zoom != 0 && nv->zoom != HUGE_VAL && !isNaN(nv->zoom)
641 && nv->cx != HUGE_VAL && !isNaN(nv->cx)
642 && nv->cy != HUGE_VAL && !isNaN(nv->cy)) {
643 desktop->zoom_absolute(nv->cx, nv->cy, nv->zoom);
644 } else if (sp_desktop_document(desktop)) { // document without saved zoom, zoom to its page
645 desktop->zoom_page();
646 }
648 // cancel any history of zooms up to this point
649 if (desktop->zooms_past) {
650 g_list_free(desktop->zooms_past);
651 desktop->zooms_past = NULL;
652 }
654 SPObject *layer = NULL;
655 SPDocument *document = desktop->doc();
656 if ( nv->default_layer_id != 0 ) {
657 layer = document->getObjectById(g_quark_to_string(nv->default_layer_id));
658 }
659 // don't use that object if it's not at least group
660 if ( !layer || !SP_IS_GROUP(layer) ) {
661 layer = NULL;
662 }
663 // if that didn't work out, look for the topmost layer
664 if (!layer) {
665 SPObject *iter = sp_object_first_child(SP_DOCUMENT_ROOT(document));
666 for ( ; iter ; iter = SP_OBJECT_NEXT(iter) ) {
667 if (desktop->isLayer(iter)) {
668 layer = iter;
669 }
670 }
671 }
672 if (layer) {
673 desktop->setCurrentLayer(layer);
674 }
675 }
677 void sp_namedview_document_from_window(SPDesktop *desktop)
678 {
679 gint save_geometry = prefs_get_int_attribute("options.savewindowgeometry", "value", 0);
680 Inkscape::XML::Node *view = SP_OBJECT_REPR(desktop->namedview);
681 NR::Rect const r = desktop->get_display_area();
683 // saving window geometry is not undoable
684 gboolean saved = sp_document_get_undo_sensitive(sp_desktop_document(desktop));
685 sp_document_set_undo_sensitive(sp_desktop_document(desktop), FALSE);
687 sp_repr_set_svg_double(view, "inkscape:zoom", desktop->current_zoom());
688 sp_repr_set_svg_double(view, "inkscape:cx", r.midpoint()[NR::X]);
689 sp_repr_set_svg_double(view, "inkscape:cy", r.midpoint()[NR::Y]);
691 if (save_geometry) {
692 gint w, h, x, y;
693 desktop->getWindowGeometry(x, y, w, h);
694 sp_repr_set_int(view, "inkscape:window-width", w);
695 sp_repr_set_int(view, "inkscape:window-height", h);
696 sp_repr_set_int(view, "inkscape:window-x", x);
697 sp_repr_set_int(view, "inkscape:window-y", y);
698 }
700 view->setAttribute("inkscape:current-layer", SP_OBJECT_ID(desktop->currentLayer()));
702 // restore undoability
703 sp_document_set_undo_sensitive(sp_desktop_document(desktop), saved);
704 }
706 void SPNamedView::hide(SPDesktop const *desktop)
707 {
708 g_assert(desktop != NULL);
709 g_assert(g_slist_find(views, desktop));
711 for (GSList *l = guides; l != NULL; l = l->next) {
712 sp_guide_hide(SP_GUIDE(l->data), sp_desktop_canvas(desktop));
713 }
715 views = g_slist_remove(views, desktop);
717 GSList *l;
718 for (l = gridviews; l != NULL; l = l->next) {
719 if (SP_CANVAS_ITEM(l->data)->canvas == sp_desktop_canvas(desktop)) {
720 break;
721 }
722 }
724 g_assert(l);
726 sp_canvas_item_hide(SP_CANVAS_ITEM(l->data));
727 gtk_object_unref(GTK_OBJECT(l->data));
728 gridviews = g_slist_remove(gridviews, l->data);
729 }
731 void SPNamedView::activateGuides(gpointer desktop, gboolean active)
732 {
733 g_assert(desktop != NULL);
734 g_assert(g_slist_find(views, desktop));
736 SPDesktop *dt = static_cast<SPDesktop*>(desktop);
738 for (GSList *l = guides; l != NULL; l = l->next) {
739 sp_guide_sensitize(SP_GUIDE(l->data), sp_desktop_canvas(dt), active);
740 }
741 }
743 static void sp_namedview_setup_guides(SPNamedView *nv)
744 {
745 for (GSList *l = nv->guides; l != NULL; l = l->next) {
746 if (nv->showguides) {
747 for (GSList *v = SP_GUIDE(l->data)->views; v != NULL; v = v->next) {
748 sp_canvas_item_show(SP_CANVAS_ITEM(v->data));
749 }
750 } else {
751 for (GSList *v = SP_GUIDE(l->data)->views; v != NULL; v = v->next) {
752 sp_canvas_item_hide(SP_CANVAS_ITEM(v->data));
753 }
754 }
755 }
756 }
758 void sp_namedview_toggle_guides(SPDocument *doc, Inkscape::XML::Node *repr)
759 {
760 unsigned int v;
761 unsigned int set = sp_repr_get_boolean(repr, "showguides", &v);
762 if (!set) { // hide guides if not specified, for backwards compatibility
763 v = FALSE;
764 } else {
765 v = !v;
766 }
768 gboolean saved = sp_document_get_undo_sensitive(doc);
769 sp_document_set_undo_sensitive(doc, FALSE);
771 sp_repr_set_boolean(repr, "showguides", v);
773 doc->rroot->setAttribute("sodipodi:modified", "true");
774 sp_document_set_undo_sensitive(doc, saved);
775 }
777 void sp_namedview_toggle_grid(SPDocument *doc, Inkscape::XML::Node *repr)
778 {
779 unsigned int v;
780 sp_repr_get_boolean(repr, "showgrid", &v);
781 v = !v;
783 gboolean saved = sp_document_get_undo_sensitive(doc);
784 sp_document_set_undo_sensitive(doc, FALSE);
786 sp_repr_set_boolean(repr, "showgrid", v);
788 doc->rroot->setAttribute("sodipodi:modified", "true");
789 sp_document_set_undo_sensitive(doc, saved);
790 }
792 static void sp_namedview_setup_grid(SPNamedView *nv)
793 {
794 for (GSList *l = nv->gridviews; l != NULL; l = l->next) {
795 sp_namedview_setup_grid_item(nv, SP_CANVAS_ITEM(l->data));
796 }
797 }
799 static void sp_namedview_setup_grid_item(SPNamedView *nv, SPCanvasItem *item)
800 {
801 if (nv->showgrid) {
802 sp_canvas_item_show(item);
803 } else {
804 sp_canvas_item_hide(item);
805 }
807 sp_canvas_item_set((GtkObject *) item,
808 "color", nv->gridcolor,
809 "originx", nv->gridorigin[NR::X],
810 "originy", nv->gridorigin[NR::Y],
811 "spacingx", nv->gridspacing[NR::X],
812 "spacingy", nv->gridspacing[NR::Y],
813 "empcolor", nv->gridempcolor,
814 "empspacing", nv->gridempspacing,
815 NULL);
816 }
818 gchar const *SPNamedView::getName() const
819 {
820 SPException ex;
821 SP_EXCEPTION_INIT(&ex);
822 return sp_object_getAttribute(SP_OBJECT(this), "id", &ex);
823 }
825 guint SPNamedView::getViewCount()
826 {
827 return ++viewcount;
828 }
830 GSList const *SPNamedView::getViewList() const
831 {
832 return views;
833 }
835 /* This should be moved somewhere */
837 static gboolean sp_str_to_bool(const gchar *str)
838 {
839 if (str) {
840 if (!g_strcasecmp(str, "true") ||
841 !g_strcasecmp(str, "yes") ||
842 !g_strcasecmp(str, "y") ||
843 (atoi(str) != 0)) {
844 return TRUE;
845 }
846 }
848 return FALSE;
849 }
851 /* fixme: Collect all these length parsing methods and think common sane API */
853 static gboolean sp_nv_read_length(const gchar *str, guint base, gdouble *val, const SPUnit **unit)
854 {
855 if (!str) {
856 return FALSE;
857 }
859 gchar *u;
860 gdouble v = g_ascii_strtod(str, &u);
861 if (!u) {
862 return FALSE;
863 }
864 while (isspace(*u)) {
865 u += 1;
866 }
868 if (!*u) {
869 /* No unit specified - keep default */
870 *val = v;
871 return TRUE;
872 }
874 if (base & SP_UNIT_DEVICE) {
875 if (u[0] && u[1] && !isalnum(u[2]) && !strncmp(u, "px", 2)) {
876 *unit = &sp_unit_get_by_id(SP_UNIT_PX);
877 *val = v;
878 return TRUE;
879 }
880 }
882 if (base & SP_UNIT_ABSOLUTE) {
883 if (!strncmp(u, "pt", 2)) {
884 *unit = &sp_unit_get_by_id(SP_UNIT_PT);
885 } else if (!strncmp(u, "mm", 2)) {
886 *unit = &sp_unit_get_by_id(SP_UNIT_MM);
887 } else if (!strncmp(u, "cm", 2)) {
888 *unit = &sp_unit_get_by_id(SP_UNIT_CM);
889 } else if (!strncmp(u, "m", 1)) {
890 *unit = &sp_unit_get_by_id(SP_UNIT_M);
891 } else if (!strncmp(u, "in", 2)) {
892 *unit = &sp_unit_get_by_id(SP_UNIT_IN);
893 } else {
894 return FALSE;
895 }
896 *val = v;
897 return TRUE;
898 }
900 return FALSE;
901 }
903 static gboolean sp_nv_read_opacity(const gchar *str, guint32 *color)
904 {
905 if (!str) {
906 return FALSE;
907 }
909 gchar *u;
910 gdouble v = strtod(str, &u);
911 if (!u) {
912 return FALSE;
913 }
914 v = CLAMP(v, 0.0, 1.0);
916 *color = (*color & 0xffffff00) | (guint32) floor(v * 255.9999);
918 return TRUE;
919 }
921 SPNamedView *sp_document_namedview(SPDocument *document, const gchar *id)
922 {
923 g_return_val_if_fail(document != NULL, NULL);
925 SPObject *nv = sp_item_group_get_child_by_name((SPGroup *) document->root, NULL, "sodipodi:namedview");
926 g_assert(nv != NULL);
928 if (id == NULL) {
929 return (SPNamedView *) nv;
930 }
932 while (nv && strcmp(nv->id, id)) {
933 nv = sp_item_group_get_child_by_name((SPGroup *) document->root, nv, "sodipodi:namedview");
934 }
936 return (SPNamedView *) nv;
937 }
939 /**
940 * Returns namedview's default metric.
941 */
942 SPMetric SPNamedView::getDefaultMetric() const
943 {
944 if (doc_units) {
945 return sp_unit_get_metric(doc_units);
946 } else {
947 return SP_PT;
948 }
949 }
951 /*
952 Local Variables:
953 mode:c++
954 c-file-style:"stroustrup"
955 c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
956 indent-tabs-mode:nil
957 fill-column:99
958 End:
959 */
960 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4 :