1 /*
2 */
4 #ifdef HAVE_CONFIG_H
5 # include "config.h"
6 #endif
7 #include <glibmm/i18n.h>
9 #include "attributes.h"
10 #include "xml/repr.h"
11 #include "style.h"
12 #include "inkscape.h"
13 #include "document.h"
14 #include "selection.h"
15 #include "desktop-handles.h"
16 #include "desktop.h"
17 #include "desktop-affine.h"
19 #include "xml/repr.h"
21 #include "sp-flowdiv.h"
22 #include "sp-flowregion.h"
23 #include "sp-flowtext.h"
24 #include "sp-string.h"
25 #include "sp-use.h"
26 #include "sp-rect.h"
27 #include "text-tag-attributes.h"
30 #include "livarot/Shape.h"
32 #include "display/nr-arena-glyphs.h"
35 static void sp_flowtext_class_init(SPFlowtextClass *klass);
36 static void sp_flowtext_init(SPFlowtext *group);
37 static void sp_flowtext_dispose(GObject *object);
39 static void sp_flowtext_child_added(SPObject *object, Inkscape::XML::Node *child, Inkscape::XML::Node *ref);
40 static void sp_flowtext_remove_child(SPObject *object, Inkscape::XML::Node *child);
41 static void sp_flowtext_update(SPObject *object, SPCtx *ctx, guint flags);
42 static void sp_flowtext_modified(SPObject *object, guint flags);
43 static Inkscape::XML::Node *sp_flowtext_write(SPObject *object, Inkscape::XML::Node *repr, guint flags);
44 static void sp_flowtext_build(SPObject *object, SPDocument *document, Inkscape::XML::Node *repr);
45 static void sp_flowtext_set(SPObject *object, unsigned key, gchar const *value);
47 static void sp_flowtext_bbox(SPItem const *item, NRRect *bbox, NR::Matrix const &transform, unsigned const flags);
48 static void sp_flowtext_print(SPItem *item, SPPrintContext *ctx);
49 static gchar *sp_flowtext_description(SPItem *item);
50 static NRArenaItem *sp_flowtext_show(SPItem *item, NRArena *arena, unsigned key, unsigned flags);
51 static void sp_flowtext_hide(SPItem *item, unsigned key);
53 static SPItemClass *parent_class;
55 GType
56 sp_flowtext_get_type(void)
57 {
58 static GType group_type = 0;
59 if (!group_type) {
60 GTypeInfo group_info = {
61 sizeof(SPFlowtextClass),
62 NULL, /* base_init */
63 NULL, /* base_finalize */
64 (GClassInitFunc) sp_flowtext_class_init,
65 NULL, /* class_finalize */
66 NULL, /* class_data */
67 sizeof(SPFlowtext),
68 16, /* n_preallocs */
69 (GInstanceInitFunc) sp_flowtext_init,
70 NULL, /* value_table */
71 };
72 group_type = g_type_register_static(SP_TYPE_ITEM, "SPFlowtext", &group_info, (GTypeFlags)0);
73 }
74 return group_type;
75 }
77 static void
78 sp_flowtext_class_init(SPFlowtextClass *klass)
79 {
80 GObjectClass *object_class = (GObjectClass *) klass;
81 SPObjectClass *sp_object_class = (SPObjectClass *) klass;
82 SPItemClass *item_class = (SPItemClass *) klass;
84 parent_class = (SPItemClass *)g_type_class_ref(SP_TYPE_ITEM);
86 object_class->dispose = sp_flowtext_dispose;
88 sp_object_class->child_added = sp_flowtext_child_added;
89 sp_object_class->remove_child = sp_flowtext_remove_child;
90 sp_object_class->update = sp_flowtext_update;
91 sp_object_class->modified = sp_flowtext_modified;
92 sp_object_class->write = sp_flowtext_write;
93 sp_object_class->build = sp_flowtext_build;
94 sp_object_class->set = sp_flowtext_set;
96 item_class->bbox = sp_flowtext_bbox;
97 item_class->print = sp_flowtext_print;
98 item_class->description = sp_flowtext_description;
99 item_class->show = sp_flowtext_show;
100 item_class->hide = sp_flowtext_hide;
101 }
103 static void
104 sp_flowtext_init(SPFlowtext *group)
105 {
106 new (&group->layout) Inkscape::Text::Layout();
107 }
109 static void
110 sp_flowtext_dispose(GObject *object)
111 {
112 SPFlowtext *group = (SPFlowtext*)object;
114 group->layout.~Layout();
115 }
117 static void
118 sp_flowtext_child_added(SPObject *object, Inkscape::XML::Node *child, Inkscape::XML::Node *ref)
119 {
120 if (((SPObjectClass *) (parent_class))->child_added)
121 (* ((SPObjectClass *) (parent_class))->child_added)(object, child, ref);
123 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
124 }
126 /* fixme: hide (Lauris) */
128 static void
129 sp_flowtext_remove_child(SPObject *object, Inkscape::XML::Node *child)
130 {
131 if (((SPObjectClass *) (parent_class))->remove_child)
132 (* ((SPObjectClass *) (parent_class))->remove_child)(object, child);
134 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
135 }
137 static void
138 sp_flowtext_update(SPObject *object, SPCtx *ctx, unsigned flags)
139 {
140 SPFlowtext *group = SP_FLOWTEXT(object);
141 SPItemCtx *ictx = (SPItemCtx *) ctx;
142 SPItemCtx cctx = *ictx;
144 if (((SPObjectClass *) (parent_class))->update)
145 ((SPObjectClass *) (parent_class))->update(object, ctx, flags);
147 if (flags & SP_OBJECT_MODIFIED_FLAG) flags |= SP_OBJECT_PARENT_MODIFIED_FLAG;
148 flags &= SP_OBJECT_MODIFIED_CASCADE;
150 GSList *l = NULL;
151 for (SPObject *child = sp_object_first_child(object) ; child != NULL ; child = SP_OBJECT_NEXT(child) ) {
152 g_object_ref(G_OBJECT(child));
153 l = g_slist_prepend(l, child);
154 }
155 l = g_slist_reverse(l);
156 while (l) {
157 SPObject *child = SP_OBJECT(l->data);
158 l = g_slist_remove(l, child);
159 if (flags || (child->uflags & (SP_OBJECT_MODIFIED_FLAG | SP_OBJECT_CHILD_MODIFIED_FLAG))) {
160 if (SP_IS_ITEM(child)) {
161 SPItem const &chi = *SP_ITEM(child);
162 cctx.i2doc = chi.transform * ictx->i2doc;
163 cctx.i2vp = chi.transform * ictx->i2vp;
164 child->updateDisplay((SPCtx *)&cctx, flags);
165 } else {
166 child->updateDisplay(ctx, flags);
167 }
168 }
169 g_object_unref(G_OBJECT(child));
170 }
172 group->rebuildLayout();
174 // pass the bbox of the flowtext object as paintbox (used for paintserver fills)
175 NRRect paintbox;
176 sp_item_invoke_bbox(group, &paintbox, NR::identity(), TRUE);
177 for (SPItemView *v = group->display; v != NULL; v = v->next) {
178 group->_clearFlow(NR_ARENA_GROUP(v->arenaitem));
179 group->layout.show(NR_ARENA_GROUP(v->arenaitem), &paintbox);
180 }
181 }
183 static void
184 sp_flowtext_modified(SPObject *object, guint flags)
185 {
186 SPObject *ft = SP_FLOWTEXT (object);
187 SPObject *region = NULL;
189 if (flags & SP_OBJECT_MODIFIED_FLAG) flags |= SP_OBJECT_PARENT_MODIFIED_FLAG;
190 flags &= SP_OBJECT_MODIFIED_CASCADE;
192 for (SPObject *o = sp_object_first_child(SP_OBJECT(ft)) ; o != NULL ; o = SP_OBJECT_NEXT(o) ) {
193 if (SP_IS_FLOWREGION(o)) {
194 region = o;
195 break;
196 }
197 }
199 if (!region) return;
201 if (flags || (region->mflags & (SP_OBJECT_MODIFIED_FLAG | SP_OBJECT_CHILD_MODIFIED_FLAG))) {
202 region->emitModified(flags); // pass down to the region only
203 }
204 }
206 static void
207 sp_flowtext_build(SPObject *object, SPDocument *document, Inkscape::XML::Node *repr)
208 {
209 object->_requireSVGVersion(Inkscape::Version(1, 2));
211 if (((SPObjectClass *) (parent_class))->build) {
212 (* ((SPObjectClass *) (parent_class))->build)(object, document, repr);
213 }
215 sp_object_read_attr(object, "inkscape:layoutOptions"); // must happen after css has been read
216 }
218 static void
219 sp_flowtext_set(SPObject *object, unsigned key, gchar const *value)
220 {
221 SPFlowtext *group = (SPFlowtext *) object;
223 switch (key) {
224 case SP_ATTR_LAYOUT_OPTIONS: {
225 // deprecated attribute, read for backward compatibility only
226 SPCSSAttr *opts = sp_repr_css_attr((SP_OBJECT(group))->repr, "inkscape:layoutOptions");
227 {
228 gchar const *val = sp_repr_css_property(opts, "justification", NULL);
229 if (val != NULL && !object->style->text_align.set) {
230 if ( strcmp(val, "0") == 0 || strcmp(val, "false") == 0 ) {
231 object->style->text_align.value = SP_CSS_TEXT_ALIGN_LEFT;
232 } else {
233 object->style->text_align.value = SP_CSS_TEXT_ALIGN_JUSTIFY;
234 }
235 object->style->text_align.set = TRUE;
236 object->style->text_align.inherit = FALSE;
237 object->style->text_align.computed = object->style->text_align.value;
238 }
239 }
240 /* no equivalent css attribute for these two (yet)
241 {
242 gchar const *val = sp_repr_css_property(opts, "layoutAlgo", NULL);
243 if ( val == NULL ) {
244 group->algo = 0;
245 } else {
246 if ( strcmp(val, "better") == 0 ) { // knuth-plass, never worked for general cases
247 group->algo = 2;
248 } else if ( strcmp(val, "simple") == 0 ) { // greedy, but allowed lines to be compressed by up to 20% if it would make them fit
249 group->algo = 1;
250 } else if ( strcmp(val, "default") == 0 ) { // the same one we use, a standard greedy
251 group->algo = 0;
252 }
253 }
254 }
255 { // This would probably translate to padding-left, if SPStyle had it.
256 gchar const *val = sp_repr_css_property(opts, "par-indent", NULL);
257 if ( val == NULL ) {
258 group->par_indent = 0.0;
259 } else {
260 sp_repr_get_double((Inkscape::XML::Node*)opts, "par-indent", &group->par_indent);
261 }
262 }
263 */
264 sp_repr_css_attr_unref(opts);
265 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
266 break;
267 }
268 default:
269 if (((SPObjectClass *) (parent_class))->set) {
270 (* ((SPObjectClass *) (parent_class))->set)(object, key, value);
271 }
272 break;
273 }
274 }
276 static Inkscape::XML::Node *
277 sp_flowtext_write(SPObject *object, Inkscape::XML::Node *repr, guint flags)
278 {
279 if ( flags & SP_OBJECT_WRITE_BUILD ) {
280 if ( repr == NULL ) repr = sp_repr_new("svg:flowRoot");
281 GSList *l = NULL;
282 for (SPObject *child = sp_object_first_child(object) ; child != NULL ; child = SP_OBJECT_NEXT(child) ) {
283 Inkscape::XML::Node *c_repr = NULL;
284 if ( SP_IS_FLOWDIV(child) || SP_IS_FLOWPARA(child) || SP_IS_FLOWREGION(child) || SP_IS_FLOWREGIONEXCLUDE(child)) {
285 c_repr = child->updateRepr(NULL, flags);
286 }
287 if ( c_repr ) l = g_slist_prepend(l, c_repr);
288 }
289 while ( l ) {
290 repr->addChild((Inkscape::XML::Node *) l->data, NULL);
291 Inkscape::GC::release((Inkscape::XML::Node *) l->data);
292 l = g_slist_remove(l, l->data);
293 }
294 } else {
295 for (SPObject *child = sp_object_first_child(object) ; child != NULL ; child = SP_OBJECT_NEXT(child) ) {
296 if ( SP_IS_FLOWDIV(child) || SP_IS_FLOWPARA(child) || SP_IS_FLOWREGION(child) || SP_IS_FLOWREGIONEXCLUDE(child) ) {
297 child->updateRepr(flags);
298 }
299 }
300 }
302 if (((SPObjectClass *) (parent_class))->write)
303 ((SPObjectClass *) (parent_class))->write(object, repr, flags);
305 return repr;
306 }
308 static void
309 sp_flowtext_bbox(SPItem const *item, NRRect *bbox, NR::Matrix const &transform, unsigned const /*flags*/)
310 {
311 SPFlowtext *group = SP_FLOWTEXT(item);
312 group->layout.getBoundingBox(bbox, transform);
313 }
315 static void
316 sp_flowtext_print(SPItem *item, SPPrintContext *ctx)
317 {
318 SPFlowtext *group = SP_FLOWTEXT(item);
320 NRRect pbox;
321 sp_item_invoke_bbox(item, &pbox, NR::identity(), TRUE);
322 NRRect bbox;
323 sp_item_bbox_desktop(item, &bbox);
324 NRRect dbox;
325 dbox.x0 = 0.0;
326 dbox.y0 = 0.0;
327 dbox.x1 = sp_document_width(SP_OBJECT_DOCUMENT(item));
328 dbox.y1 = sp_document_height(SP_OBJECT_DOCUMENT(item));
329 NR::Matrix const ctm = sp_item_i2d_affine(item);
331 group->layout.print(ctx, &pbox, &dbox, &bbox, ctm);
332 }
335 static gchar *sp_flowtext_description(SPItem *item)
336 {
337 Inkscape::Text::Layout const &layout = SP_FLOWTEXT(item)->layout;
338 int const nChars = layout.iteratorToCharIndex(layout.end());
339 if (SP_FLOWTEXT(item)->has_internal_frame())
340 return g_strdup_printf(_("<b>Flowed text</b> (%d characters)"), nChars);
341 else
342 return g_strdup_printf(_("<b>Linked flowed text</b> (%d characters)"), nChars);
343 }
345 static NRArenaItem *
346 sp_flowtext_show(SPItem *item, NRArena *arena, unsigned/* key*/, unsigned /*flags*/)
347 {
348 SPFlowtext *group = (SPFlowtext *) item;
349 NRArenaGroup *flowed = NRArenaGroup::create(arena);
350 nr_arena_group_set_transparent(flowed, FALSE);
352 // pass the bbox of the flowtext object as paintbox (used for paintserver fills)
353 NRRect paintbox;
354 sp_item_invoke_bbox(item, &paintbox, NR::identity(), TRUE);
355 group->layout.show(flowed, &paintbox);
357 return flowed;
358 }
360 static void
361 sp_flowtext_hide(SPItem *item, unsigned int key)
362 {
363 if (((SPItemClass *) parent_class)->hide)
364 ((SPItemClass *) parent_class)->hide(item, key);
365 }
368 /*
369 *
370 */
372 void SPFlowtext::_buildLayoutInput(SPObject *root, Shape const *exclusion_shape, std::list<Shape> *shapes, SPObject **pending_line_break_object)
373 {
374 if (*pending_line_break_object) {
375 if (SP_IS_FLOWREGIONBREAK(*pending_line_break_object))
376 layout.appendControlCode(Inkscape::Text::Layout::SHAPE_BREAK, *pending_line_break_object);
377 else
378 layout.appendControlCode(Inkscape::Text::Layout::PARAGRAPH_BREAK, *pending_line_break_object);
379 *pending_line_break_object = NULL;
380 }
382 for (SPObject *child = sp_object_first_child(root) ; child != NULL ; child = SP_OBJECT_NEXT(child) ) {
383 if (SP_IS_STRING(child)) {
384 if (*pending_line_break_object) {
385 if (SP_IS_FLOWREGIONBREAK(*pending_line_break_object))
386 layout.appendControlCode(Inkscape::Text::Layout::SHAPE_BREAK, *pending_line_break_object);
387 else
388 layout.appendControlCode(Inkscape::Text::Layout::PARAGRAPH_BREAK, *pending_line_break_object);
389 *pending_line_break_object = NULL;
390 }
391 layout.appendText(SP_STRING(child)->string, root->style, child);
392 } else if (SP_IS_FLOWREGION(child)) {
393 std::vector<Shape*> const &computed = SP_FLOWREGION(child)->computed;
394 for (std::vector<Shape*>::const_iterator it = computed.begin() ; it != computed.end() ; it++) {
395 shapes->push_back(Shape());
396 if (exclusion_shape->hasEdges())
397 shapes->back().Booleen(*it, const_cast<Shape*>(exclusion_shape), bool_op_diff);
398 else
399 shapes->back().Copy(*it);
400 layout.appendWrapShape(&shapes->back());
401 }
402 }
403 else if (!SP_IS_FLOWREGIONEXCLUDE(child))
404 _buildLayoutInput(child, exclusion_shape, shapes, pending_line_break_object);
405 }
407 if (SP_IS_FLOWDIV(root) || SP_IS_FLOWPARA(root) || SP_IS_FLOWREGIONBREAK(root) || SP_IS_FLOWLINE(root)) {
408 if (!root->hasChildren())
409 layout.appendText("", root->style, root);
410 *pending_line_break_object = root;
411 }
412 }
414 Shape* SPFlowtext::_buildExclusionShape() const
415 {
416 Shape *shape = new Shape;
417 Shape *shape_temp = new Shape;
419 for (SPObject *child = children ; child != NULL ; child = SP_OBJECT_NEXT(child) ) {
420 // RH: is it right that this shouldn't be recursive?
421 if ( SP_IS_FLOWREGIONEXCLUDE(child) ) {
422 SPFlowregionExclude *c_child = SP_FLOWREGIONEXCLUDE(child);
423 if (c_child->computed == NULL || !c_child->computed->hasEdges())
424 continue;
425 if (shape->hasEdges()) {
426 shape_temp->Booleen(shape, c_child->computed, bool_op_union);
427 std::swap(shape, shape_temp);
428 } else
429 shape->Copy(c_child->computed);
430 }
431 }
432 delete shape_temp;
433 return shape;
434 }
436 void SPFlowtext::rebuildLayout()
437 {
438 std::list<Shape> shapes;
440 layout.clear();
441 Shape *exclusion_shape = _buildExclusionShape();
442 SPObject *pending_line_break_object = NULL;
443 _buildLayoutInput(this, exclusion_shape, &shapes, &pending_line_break_object);
444 delete exclusion_shape;
445 layout.calculateFlow();
446 //g_print(layout.dumpAsText().c_str());
447 }
449 void SPFlowtext::_clearFlow(NRArenaGroup *in_arena)
450 {
451 nr_arena_item_request_render(NR_ARENA_ITEM(in_arena));
452 for (NRArenaItem *child = in_arena->children; child != NULL; ) {
453 NRArenaItem *nchild = child->next;
455 nr_arena_glyphs_group_clear(NR_ARENA_GLYPHS_GROUP(child));
456 nr_arena_item_remove_child(NR_ARENA_ITEM(in_arena), child);
458 child = nchild;
459 }
460 }
462 void SPFlowtext::convert_to_text()
463 {
464 SPDesktop *desktop = SP_ACTIVE_DESKTOP;
465 Inkscape::Selection *selection = SP_DT_SELECTION(desktop);
466 SPItem *item = selection->singleItem();
467 if (!SP_IS_FLOWTEXT(item)) return;
469 SPFlowtext *group = SP_FLOWTEXT(item);
471 if (!group->layout.outputExists()) return;
473 Inkscape::XML::Node *repr = sp_repr_new("svg:text");
474 repr->setAttribute("xml:space", "preserve");
475 repr->setAttribute("style", SP_OBJECT_REPR(group)->attribute("style"));
476 NR::Point anchor_point = group->layout.characterAnchorPoint(group->layout.begin());
477 sp_repr_set_svg_double(repr, "x", anchor_point[NR::X]);
478 sp_repr_set_svg_double(repr, "y", anchor_point[NR::Y]);
480 for (Inkscape::Text::Layout::iterator it = group->layout.begin() ; it != group->layout.end() ; ) {
482 Inkscape::XML::Node *line_tspan = sp_repr_new("svg:tspan");
483 line_tspan->setAttribute("sodipodi:role", "line");
485 Inkscape::Text::Layout::iterator it_line_end = it;
486 it_line_end.nextStartOfLine();
487 while (it != it_line_end) {
489 Inkscape::XML::Node *span_tspan = sp_repr_new("svg:tspan");
490 NR::Point anchor_point = group->layout.characterAnchorPoint(it);
491 // use kerning to simulate justification and whatnot
492 Inkscape::Text::Layout::iterator it_span_end = it;
493 it_span_end.nextStartOfSpan();
494 Inkscape::Text::Layout::OptionalTextTagAttrs attrs;
495 group->layout.simulateLayoutUsingKerning(it, it_span_end, &attrs);
496 // set x,y attributes only when we need to
497 bool set_x = false;
498 bool set_y = false;
499 if (!item->transform.test_identity()) {
500 set_x = set_y = true;
501 } else {
502 Inkscape::Text::Layout::iterator it_chunk_start = it;
503 it_chunk_start.thisStartOfChunk();
504 if (it == it_chunk_start) {
505 set_x = true;
506 // don't set y so linespacing adjustments and things will still work
507 }
508 Inkscape::Text::Layout::iterator it_shape_start = it;
509 it_shape_start.thisStartOfShape();
510 if (it == it_shape_start)
511 set_y = true;
512 }
513 if (set_x && !attrs.dx.empty())
514 attrs.dx[0] = 0.0;
515 TextTagAttributes(attrs).writeTo(span_tspan);
516 if (set_x)
517 sp_repr_set_svg_double(span_tspan, "x", anchor_point[NR::X]); // FIXME: this will pick up the wrong end of counter-directional runs
518 if (set_y)
519 sp_repr_set_svg_double(span_tspan, "y", anchor_point[NR::Y]);
521 SPObject *source_obj;
522 Glib::ustring::iterator span_text_start_iter;
523 group->layout.getSourceOfCharacter(it, (void**)&source_obj, &span_text_start_iter);
524 gchar *style_text = sp_style_write_difference((SP_IS_STRING(source_obj) ? source_obj->parent : source_obj)->style, group->style);
525 if (style_text && *style_text) {
526 span_tspan->setAttribute("style", style_text);
527 g_free(style_text);
528 }
530 if (SP_IS_STRING(source_obj)) {
531 Glib::ustring *string = &SP_STRING(source_obj)->string;
532 SPObject *span_end_obj;
533 Glib::ustring::iterator span_text_end_iter;
534 group->layout.getSourceOfCharacter(it_span_end, (void**)&span_end_obj, &span_text_end_iter);
535 if (span_end_obj != source_obj) {
536 if (it_span_end == group->layout.end()) {
537 span_text_end_iter = span_text_start_iter;
538 for (int i = group->layout.iteratorToCharIndex(it_span_end) - group->layout.iteratorToCharIndex(it) ; i ; --i)
539 ++span_text_end_iter;
540 } else
541 span_text_end_iter = string->end(); // spans will never straddle a source boundary
542 }
544 if (span_text_start_iter != span_text_end_iter) {
545 Glib::ustring new_string;
546 while (span_text_start_iter != span_text_end_iter)
547 new_string += *span_text_start_iter++; // grr. no substr() with iterators
548 Inkscape::XML::Node *new_text = sp_repr_new_text(new_string.c_str());
549 span_tspan->appendChild(new_text);
550 Inkscape::GC::release(new_text);
551 }
552 }
553 it = it_span_end;
555 line_tspan->appendChild(span_tspan);
556 Inkscape::GC::release(span_tspan);
557 }
558 repr->appendChild(line_tspan);
559 Inkscape::GC::release(line_tspan);
560 }
562 Inkscape::XML::Node *parent = SP_OBJECT_REPR(item)->parent();
563 parent->appendChild(repr);
564 SPItem *new_item = (SPItem *) SP_DT_DOCUMENT(desktop)->getObjectByRepr(repr);
565 sp_item_write_transform(new_item, repr, item->transform);
566 SP_OBJECT(new_item)->updateRepr();
568 Inkscape::GC::release(repr);
569 selection->set(new_item);
570 item->deleteObject();
572 sp_document_done(SP_DT_DOCUMENT(desktop));
573 }
575 SPItem *SPFlowtext::get_frame(SPItem *after)
576 {
577 SPObject *ft = SP_OBJECT (this);
578 SPObject *region = NULL;
580 for (SPObject *o = sp_object_first_child(SP_OBJECT(ft)) ; o != NULL ; o = SP_OBJECT_NEXT(o) ) {
581 if (SP_IS_FLOWREGION(o)) {
582 region = o;
583 break;
584 }
585 }
587 if (!region) return NULL;
589 bool past = false;
590 SPItem *frame = NULL;
592 for (SPObject *o = sp_object_first_child(SP_OBJECT(region)) ; o != NULL ; o = SP_OBJECT_NEXT(o) ) {
593 if (SP_IS_ITEM(o)) {
594 if (after == NULL || past) {
595 frame = SP_ITEM(o);
596 } else {
597 if (SP_ITEM(o) == after) {
598 past = true;
599 }
600 }
601 }
602 }
604 if (!frame) return NULL;
606 if (SP_IS_USE (frame)) {
607 return sp_use_get_original(SP_USE(frame));
608 } else {
609 return frame;
610 }
611 }
613 bool SPFlowtext::has_internal_frame()
614 {
615 SPItem *frame = get_frame(NULL);
617 return (frame && SP_OBJECT(this)->isAncestorOf(SP_OBJECT(frame)) && SP_IS_RECT(frame));
618 }
621 SPItem *create_flowtext_with_internal_frame (SPDesktop *desktop, NR::Point p0, NR::Point p1)
622 {
623 SPDocument *doc = SP_DT_DOCUMENT (desktop);
625 Inkscape::XML::Node *root_repr = sp_repr_new("svg:flowRoot");
626 root_repr->setAttribute("xml:space", "preserve"); // we preserve spaces in the text objects we create
627 SPItem *ft_item = SP_ITEM(desktop->currentLayer()->appendChildRepr(root_repr));
628 SPObject *root_object = doc->getObjectByRepr(root_repr);
629 g_assert(SP_IS_FLOWTEXT(root_object));
631 Inkscape::XML::Node *region_repr = sp_repr_new("svg:flowRegion");
632 root_repr->appendChild(region_repr);
633 SPObject *region_object = doc->getObjectByRepr(region_repr);
634 g_assert(SP_IS_FLOWREGION(region_object));
636 Inkscape::XML::Node *rect_repr = sp_repr_new("svg:rect"); // FIXME: use path!!! after rects are converted to use path
637 region_repr->appendChild(rect_repr);
639 SPObject *rect = doc->getObjectByRepr(rect_repr);
641 p0 = sp_desktop_dt2root_xy_point(desktop, p0);
642 p1 = sp_desktop_dt2root_xy_point(desktop, p1);
643 using NR::X;
644 using NR::Y;
645 NR::Coord const x0 = MIN(p0[X], p1[X]);
646 NR::Coord const y0 = MIN(p0[Y], p1[Y]);
647 NR::Coord const x1 = MAX(p0[X], p1[X]);
648 NR::Coord const y1 = MAX(p0[Y], p1[Y]);
649 NR::Coord const w = x1 - x0;
650 NR::Coord const h = y1 - y0;
652 sp_rect_position_set(SP_RECT(rect), x0, y0, w, h);
653 SP_OBJECT(rect)->updateRepr();
655 Inkscape::XML::Node *para_repr = sp_repr_new("svg:flowPara");
656 root_repr->appendChild(para_repr);
657 SPObject *para_object = doc->getObjectByRepr(para_repr);
658 g_assert(SP_IS_FLOWPARA(para_object));
660 Inkscape::XML::Node *text = sp_repr_new_text("");
661 para_repr->appendChild(text);
663 Inkscape::GC::release(root_repr);
664 Inkscape::GC::release(region_repr);
665 Inkscape::GC::release(para_repr);
666 Inkscape::GC::release(rect_repr);
668 return ft_item;
669 }
672 /*
673 Local Variables:
674 mode:c++
675 c-file-style:"stroustrup"
676 c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
677 indent-tabs-mode:nil
678 fill-column:99
679 End:
680 */
681 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4 :