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"
28 #include "text-chemistry.h"
31 #include "livarot/Shape.h"
33 #include "display/nr-arena-glyphs.h"
36 static void sp_flowtext_class_init(SPFlowtextClass *klass);
37 static void sp_flowtext_init(SPFlowtext *group);
38 static void sp_flowtext_dispose(GObject *object);
40 static void sp_flowtext_child_added(SPObject *object, Inkscape::XML::Node *child, Inkscape::XML::Node *ref);
41 static void sp_flowtext_remove_child(SPObject *object, Inkscape::XML::Node *child);
42 static void sp_flowtext_update(SPObject *object, SPCtx *ctx, guint flags);
43 static void sp_flowtext_modified(SPObject *object, guint flags);
44 static Inkscape::XML::Node *sp_flowtext_write(SPObject *object, Inkscape::XML::Node *repr, guint flags);
45 static void sp_flowtext_build(SPObject *object, SPDocument *document, Inkscape::XML::Node *repr);
46 static void sp_flowtext_set(SPObject *object, unsigned key, gchar const *value);
48 static void sp_flowtext_bbox(SPItem const *item, NRRect *bbox, NR::Matrix const &transform, unsigned const flags);
49 static void sp_flowtext_print(SPItem *item, SPPrintContext *ctx);
50 static gchar *sp_flowtext_description(SPItem *item);
51 static NRArenaItem *sp_flowtext_show(SPItem *item, NRArena *arena, unsigned key, unsigned flags);
52 static void sp_flowtext_hide(SPItem *item, unsigned key);
54 static SPItemClass *parent_class;
56 GType
57 sp_flowtext_get_type(void)
58 {
59 static GType group_type = 0;
60 if (!group_type) {
61 GTypeInfo group_info = {
62 sizeof(SPFlowtextClass),
63 NULL, /* base_init */
64 NULL, /* base_finalize */
65 (GClassInitFunc) sp_flowtext_class_init,
66 NULL, /* class_finalize */
67 NULL, /* class_data */
68 sizeof(SPFlowtext),
69 16, /* n_preallocs */
70 (GInstanceInitFunc) sp_flowtext_init,
71 NULL, /* value_table */
72 };
73 group_type = g_type_register_static(SP_TYPE_ITEM, "SPFlowtext", &group_info, (GTypeFlags)0);
74 }
75 return group_type;
76 }
78 static void
79 sp_flowtext_class_init(SPFlowtextClass *klass)
80 {
81 GObjectClass *object_class = (GObjectClass *) klass;
82 SPObjectClass *sp_object_class = (SPObjectClass *) klass;
83 SPItemClass *item_class = (SPItemClass *) klass;
85 parent_class = (SPItemClass *)g_type_class_ref(SP_TYPE_ITEM);
87 object_class->dispose = sp_flowtext_dispose;
89 sp_object_class->child_added = sp_flowtext_child_added;
90 sp_object_class->remove_child = sp_flowtext_remove_child;
91 sp_object_class->update = sp_flowtext_update;
92 sp_object_class->modified = sp_flowtext_modified;
93 sp_object_class->write = sp_flowtext_write;
94 sp_object_class->build = sp_flowtext_build;
95 sp_object_class->set = sp_flowtext_set;
97 item_class->bbox = sp_flowtext_bbox;
98 item_class->print = sp_flowtext_print;
99 item_class->description = sp_flowtext_description;
100 item_class->show = sp_flowtext_show;
101 item_class->hide = sp_flowtext_hide;
102 }
104 static void
105 sp_flowtext_init(SPFlowtext *group)
106 {
107 group->par_indent = 0;
108 new (&group->layout) Inkscape::Text::Layout();
109 }
111 static void
112 sp_flowtext_dispose(GObject *object)
113 {
114 SPFlowtext *group = (SPFlowtext*)object;
116 group->layout.~Layout();
117 }
119 static void
120 sp_flowtext_child_added(SPObject *object, Inkscape::XML::Node *child, Inkscape::XML::Node *ref)
121 {
122 if (((SPObjectClass *) (parent_class))->child_added)
123 (* ((SPObjectClass *) (parent_class))->child_added)(object, child, ref);
125 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
126 }
128 /* fixme: hide (Lauris) */
130 static void
131 sp_flowtext_remove_child(SPObject *object, Inkscape::XML::Node *child)
132 {
133 if (((SPObjectClass *) (parent_class))->remove_child)
134 (* ((SPObjectClass *) (parent_class))->remove_child)(object, child);
136 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
137 }
139 static void
140 sp_flowtext_update(SPObject *object, SPCtx *ctx, unsigned flags)
141 {
142 SPFlowtext *group = SP_FLOWTEXT(object);
143 SPItemCtx *ictx = (SPItemCtx *) ctx;
144 SPItemCtx cctx = *ictx;
146 if (((SPObjectClass *) (parent_class))->update)
147 ((SPObjectClass *) (parent_class))->update(object, ctx, flags);
149 if (flags & SP_OBJECT_MODIFIED_FLAG) flags |= SP_OBJECT_PARENT_MODIFIED_FLAG;
150 flags &= SP_OBJECT_MODIFIED_CASCADE;
152 GSList *l = NULL;
153 for (SPObject *child = sp_object_first_child(object) ; child != NULL ; child = SP_OBJECT_NEXT(child) ) {
154 g_object_ref(G_OBJECT(child));
155 l = g_slist_prepend(l, child);
156 }
157 l = g_slist_reverse(l);
158 while (l) {
159 SPObject *child = SP_OBJECT(l->data);
160 l = g_slist_remove(l, child);
161 if (flags || (child->uflags & (SP_OBJECT_MODIFIED_FLAG | SP_OBJECT_CHILD_MODIFIED_FLAG))) {
162 if (SP_IS_ITEM(child)) {
163 SPItem const &chi = *SP_ITEM(child);
164 cctx.i2doc = chi.transform * ictx->i2doc;
165 cctx.i2vp = chi.transform * ictx->i2vp;
166 child->updateDisplay((SPCtx *)&cctx, flags);
167 } else {
168 child->updateDisplay(ctx, flags);
169 }
170 }
171 g_object_unref(G_OBJECT(child));
172 }
174 group->rebuildLayout();
176 // pass the bbox of the flowtext object as paintbox (used for paintserver fills)
177 NRRect paintbox;
178 sp_item_invoke_bbox(group, &paintbox, NR::identity(), TRUE);
179 for (SPItemView *v = group->display; v != NULL; v = v->next) {
180 group->_clearFlow(NR_ARENA_GROUP(v->arenaitem));
181 group->layout.show(NR_ARENA_GROUP(v->arenaitem), &paintbox);
182 }
183 }
185 static void
186 sp_flowtext_modified(SPObject *object, guint flags)
187 {
188 SPObject *ft = SP_FLOWTEXT (object);
189 SPObject *region = NULL;
191 if (flags & SP_OBJECT_MODIFIED_FLAG) flags |= SP_OBJECT_PARENT_MODIFIED_FLAG;
192 flags &= SP_OBJECT_MODIFIED_CASCADE;
194 // FIXME: the below stanza is copied over from sp_text_modified, consider factoring it out
195 if (flags & ( SP_OBJECT_STYLE_MODIFIED_FLAG )) {
196 SPFlowtext *text = SP_FLOWTEXT(object);
197 NRRect paintbox;
198 sp_item_invoke_bbox(text, &paintbox, NR::identity(), TRUE);
199 for (SPItemView* v = text->display; v != NULL; v = v->next) {
200 text->_clearFlow(NR_ARENA_GROUP(v->arenaitem));
201 nr_arena_group_set_style(NR_ARENA_GROUP(v->arenaitem), SP_OBJECT_STYLE(object));
202 text->layout.show(NR_ARENA_GROUP(v->arenaitem), &paintbox);
203 }
204 }
206 for (SPObject *o = sp_object_first_child(SP_OBJECT(ft)) ; o != NULL ; o = SP_OBJECT_NEXT(o) ) {
207 if (SP_IS_FLOWREGION(o)) {
208 region = o;
209 break;
210 }
211 }
213 if (!region) return;
215 if (flags || (region->mflags & (SP_OBJECT_MODIFIED_FLAG | SP_OBJECT_CHILD_MODIFIED_FLAG))) {
216 region->emitModified(flags); // pass down to the region only
217 }
218 }
220 static void
221 sp_flowtext_build(SPObject *object, SPDocument *document, Inkscape::XML::Node *repr)
222 {
223 object->_requireSVGVersion(Inkscape::Version(1, 2));
225 if (((SPObjectClass *) (parent_class))->build) {
226 (* ((SPObjectClass *) (parent_class))->build)(object, document, repr);
227 }
229 sp_object_read_attr(object, "inkscape:layoutOptions"); // must happen after css has been read
230 }
232 static void
233 sp_flowtext_set(SPObject *object, unsigned key, gchar const *value)
234 {
235 SPFlowtext *group = (SPFlowtext *) object;
237 switch (key) {
238 case SP_ATTR_LAYOUT_OPTIONS: {
239 // deprecated attribute, read for backward compatibility only
240 SPCSSAttr *opts = sp_repr_css_attr((SP_OBJECT(group))->repr, "inkscape:layoutOptions");
241 {
242 gchar const *val = sp_repr_css_property(opts, "justification", NULL);
243 if (val != NULL && !object->style->text_align.set) {
244 if ( strcmp(val, "0") == 0 || strcmp(val, "false") == 0 ) {
245 object->style->text_align.value = SP_CSS_TEXT_ALIGN_LEFT;
246 } else {
247 object->style->text_align.value = SP_CSS_TEXT_ALIGN_JUSTIFY;
248 }
249 object->style->text_align.set = TRUE;
250 object->style->text_align.inherit = FALSE;
251 object->style->text_align.computed = object->style->text_align.value;
252 }
253 }
254 /* no equivalent css attribute for these two (yet)
255 {
256 gchar const *val = sp_repr_css_property(opts, "layoutAlgo", NULL);
257 if ( val == NULL ) {
258 group->algo = 0;
259 } else {
260 if ( strcmp(val, "better") == 0 ) { // knuth-plass, never worked for general cases
261 group->algo = 2;
262 } else if ( strcmp(val, "simple") == 0 ) { // greedy, but allowed lines to be compressed by up to 20% if it would make them fit
263 group->algo = 1;
264 } else if ( strcmp(val, "default") == 0 ) { // the same one we use, a standard greedy
265 group->algo = 0;
266 }
267 }
268 }
269 */
270 { // This would probably translate to padding-left, if SPStyle had it.
271 gchar const *val = sp_repr_css_property(opts, "par-indent", NULL);
272 if ( val == NULL ) {
273 group->par_indent = 0.0;
274 } else {
275 sp_repr_get_double((Inkscape::XML::Node*)opts, "par-indent", &group->par_indent);
276 }
277 }
278 sp_repr_css_attr_unref(opts);
279 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
280 break;
281 }
282 default:
283 if (((SPObjectClass *) (parent_class))->set) {
284 (* ((SPObjectClass *) (parent_class))->set)(object, key, value);
285 }
286 break;
287 }
288 }
290 static Inkscape::XML::Node *
291 sp_flowtext_write(SPObject *object, Inkscape::XML::Node *repr, guint flags)
292 {
293 if ( flags & SP_OBJECT_WRITE_BUILD ) {
294 Inkscape::XML::Document *xml_doc = sp_document_repr_doc(SP_OBJECT_DOCUMENT(object));
295 if ( repr == NULL ) repr = xml_doc->createElement("svg:flowRoot");
296 GSList *l = NULL;
297 for (SPObject *child = sp_object_first_child(object) ; child != NULL ; child = SP_OBJECT_NEXT(child) ) {
298 Inkscape::XML::Node *c_repr = NULL;
299 if ( SP_IS_FLOWDIV(child) || SP_IS_FLOWPARA(child) || SP_IS_FLOWREGION(child) || SP_IS_FLOWREGIONEXCLUDE(child)) {
300 c_repr = child->updateRepr(NULL, flags);
301 }
302 if ( c_repr ) l = g_slist_prepend(l, c_repr);
303 }
304 while ( l ) {
305 repr->addChild((Inkscape::XML::Node *) l->data, NULL);
306 Inkscape::GC::release((Inkscape::XML::Node *) l->data);
307 l = g_slist_remove(l, l->data);
308 }
309 } else {
310 for (SPObject *child = sp_object_first_child(object) ; child != NULL ; child = SP_OBJECT_NEXT(child) ) {
311 if ( SP_IS_FLOWDIV(child) || SP_IS_FLOWPARA(child) || SP_IS_FLOWREGION(child) || SP_IS_FLOWREGIONEXCLUDE(child) ) {
312 child->updateRepr(flags);
313 }
314 }
315 }
317 if (((SPObjectClass *) (parent_class))->write)
318 ((SPObjectClass *) (parent_class))->write(object, repr, flags);
320 return repr;
321 }
323 static void
324 sp_flowtext_bbox(SPItem const *item, NRRect *bbox, NR::Matrix const &transform, unsigned const /*flags*/)
325 {
326 SPFlowtext *group = SP_FLOWTEXT(item);
327 group->layout.getBoundingBox(bbox, transform);
329 // Add stroke width
330 SPStyle* style=SP_OBJECT_STYLE (item);
331 if (style->stroke.type != SP_PAINT_TYPE_NONE) {
332 double const scale = expansion(transform);
333 if ( fabs(style->stroke_width.computed * scale) > 0.01 ) { // sinon c'est 0=oon veut pas de bord
334 double const width = MAX(0.125, style->stroke_width.computed * scale);
335 if ( fabs(bbox->x1 - bbox->x0) > -0.00001 && fabs(bbox->y1 - bbox->y0) > -0.00001 ) {
336 bbox->x0-=0.5*width;
337 bbox->x1+=0.5*width;
338 bbox->y0-=0.5*width;
339 bbox->y1+=0.5*width;
340 }
341 }
342 }
343 }
345 static void
346 sp_flowtext_print(SPItem *item, SPPrintContext *ctx)
347 {
348 SPFlowtext *group = SP_FLOWTEXT(item);
350 NRRect pbox;
351 sp_item_invoke_bbox(item, &pbox, NR::identity(), TRUE);
352 NRRect bbox;
353 sp_item_bbox_desktop(item, &bbox);
354 NRRect dbox;
355 dbox.x0 = 0.0;
356 dbox.y0 = 0.0;
357 dbox.x1 = sp_document_width(SP_OBJECT_DOCUMENT(item));
358 dbox.y1 = sp_document_height(SP_OBJECT_DOCUMENT(item));
359 NR::Matrix const ctm = sp_item_i2d_affine(item);
361 group->layout.print(ctx, &pbox, &dbox, &bbox, ctm);
362 }
365 static gchar *sp_flowtext_description(SPItem *item)
366 {
367 Inkscape::Text::Layout const &layout = SP_FLOWTEXT(item)->layout;
368 int const nChars = layout.iteratorToCharIndex(layout.end());
369 if (SP_FLOWTEXT(item)->has_internal_frame())
370 return g_strdup_printf(ngettext("<b>Flowed text</b> (%d character)", "<b>Flowed text</b> (%d characters)", nChars), nChars);
371 else
372 return g_strdup_printf(ngettext("<b>Linked flowed text</b> (%d character)", "<b>Linked flowed text</b> (%d characters)", nChars), nChars);
373 }
375 static NRArenaItem *
376 sp_flowtext_show(SPItem *item, NRArena *arena, unsigned/* key*/, unsigned /*flags*/)
377 {
378 SPFlowtext *group = (SPFlowtext *) item;
379 NRArenaGroup *flowed = NRArenaGroup::create(arena);
380 nr_arena_group_set_transparent(flowed, FALSE);
382 // pass the bbox of the flowtext object as paintbox (used for paintserver fills)
383 NRRect paintbox;
384 sp_item_invoke_bbox(item, &paintbox, NR::identity(), TRUE);
385 group->layout.show(flowed, &paintbox);
387 return flowed;
388 }
390 static void
391 sp_flowtext_hide(SPItem *item, unsigned int key)
392 {
393 if (((SPItemClass *) parent_class)->hide)
394 ((SPItemClass *) parent_class)->hide(item, key);
395 }
398 /*
399 *
400 */
402 void SPFlowtext::_buildLayoutInput(SPObject *root, Shape const *exclusion_shape, std::list<Shape> *shapes, SPObject **pending_line_break_object)
403 {
404 Inkscape::Text::Layout::OptionalTextTagAttrs pi;
405 bool with_indent = false;
407 if (SP_IS_FLOWPARA(root)) {
408 // emulate par-indent with the first char's kern
409 SPObject *t = root;
410 for ( ; t != NULL && !SP_IS_FLOWTEXT(t); t = SP_OBJECT_PARENT(t));
411 if (SP_IS_FLOWTEXT(t)) {
412 double indent = SP_FLOWTEXT(t)->par_indent;
413 if (indent != 0) {
414 with_indent = true;
415 SVGLength sl;
416 sl.value = sl.computed = indent;
417 sl._set = true;
418 pi.dx.push_back(sl);
419 }
420 }
421 }
423 if (*pending_line_break_object) {
424 if (SP_IS_FLOWREGIONBREAK(*pending_line_break_object)) {
425 layout.appendControlCode(Inkscape::Text::Layout::SHAPE_BREAK, *pending_line_break_object);
426 } else {
427 layout.appendControlCode(Inkscape::Text::Layout::PARAGRAPH_BREAK, *pending_line_break_object);
428 }
429 *pending_line_break_object = NULL;
430 }
432 for (SPObject *child = sp_object_first_child(root) ; child != NULL ; child = SP_OBJECT_NEXT(child) ) {
433 if (SP_IS_STRING(child)) {
434 if (*pending_line_break_object) {
435 if (SP_IS_FLOWREGIONBREAK(*pending_line_break_object))
436 layout.appendControlCode(Inkscape::Text::Layout::SHAPE_BREAK, *pending_line_break_object);
437 else {
438 layout.appendControlCode(Inkscape::Text::Layout::PARAGRAPH_BREAK, *pending_line_break_object);
439 }
440 *pending_line_break_object = NULL;
441 }
442 if (with_indent)
443 layout.appendText(SP_STRING(child)->string, root->style, child, &pi);
444 else
445 layout.appendText(SP_STRING(child)->string, root->style, child);
446 } else if (SP_IS_FLOWREGION(child)) {
447 std::vector<Shape*> const &computed = SP_FLOWREGION(child)->computed;
448 for (std::vector<Shape*>::const_iterator it = computed.begin() ; it != computed.end() ; it++) {
449 shapes->push_back(Shape());
450 if (exclusion_shape->hasEdges())
451 shapes->back().Booleen(*it, const_cast<Shape*>(exclusion_shape), bool_op_diff);
452 else
453 shapes->back().Copy(*it);
454 layout.appendWrapShape(&shapes->back());
455 }
456 }
457 else if (!SP_IS_FLOWREGIONEXCLUDE(child))
458 _buildLayoutInput(child, exclusion_shape, shapes, pending_line_break_object);
459 }
461 if (SP_IS_FLOWDIV(root) || SP_IS_FLOWPARA(root) || SP_IS_FLOWREGIONBREAK(root) || SP_IS_FLOWLINE(root)) {
462 if (!root->hasChildren())
463 layout.appendText("", root->style, root);
464 *pending_line_break_object = root;
465 }
466 }
468 Shape* SPFlowtext::_buildExclusionShape() const
469 {
470 Shape *shape = new Shape;
471 Shape *shape_temp = new Shape;
473 for (SPObject *child = children ; child != NULL ; child = SP_OBJECT_NEXT(child) ) {
474 // RH: is it right that this shouldn't be recursive?
475 if ( SP_IS_FLOWREGIONEXCLUDE(child) ) {
476 SPFlowregionExclude *c_child = SP_FLOWREGIONEXCLUDE(child);
477 if (c_child->computed == NULL || !c_child->computed->hasEdges())
478 continue;
479 if (shape->hasEdges()) {
480 shape_temp->Booleen(shape, c_child->computed, bool_op_union);
481 std::swap(shape, shape_temp);
482 } else
483 shape->Copy(c_child->computed);
484 }
485 }
486 delete shape_temp;
487 return shape;
488 }
490 void SPFlowtext::rebuildLayout()
491 {
492 std::list<Shape> shapes;
494 layout.clear();
495 Shape *exclusion_shape = _buildExclusionShape();
496 SPObject *pending_line_break_object = NULL;
497 _buildLayoutInput(this, exclusion_shape, &shapes, &pending_line_break_object);
498 delete exclusion_shape;
499 layout.calculateFlow();
500 //g_print(layout.dumpAsText().c_str());
501 }
503 void SPFlowtext::_clearFlow(NRArenaGroup *in_arena)
504 {
505 nr_arena_item_request_render(NR_ARENA_ITEM(in_arena));
506 for (NRArenaItem *child = in_arena->children; child != NULL; ) {
507 NRArenaItem *nchild = child->next;
509 nr_arena_glyphs_group_clear(NR_ARENA_GLYPHS_GROUP(child));
510 nr_arena_item_remove_child(NR_ARENA_ITEM(in_arena), child);
512 child = nchild;
513 }
514 }
516 Inkscape::XML::Node *
517 SPFlowtext::getAsText()
518 {
519 if (!this->layout.outputExists()) return NULL;
521 SPItem *item = SP_ITEM(this);
523 Inkscape::XML::Document *xml_doc = sp_document_repr_doc(SP_OBJECT_DOCUMENT(this));
524 Inkscape::XML::Node *repr = xml_doc->createElement("svg:text");
525 repr->setAttribute("xml:space", "preserve");
526 repr->setAttribute("style", SP_OBJECT_REPR(this)->attribute("style"));
527 NR::Point anchor_point = this->layout.characterAnchorPoint(this->layout.begin());
528 sp_repr_set_svg_double(repr, "x", anchor_point[NR::X]);
529 sp_repr_set_svg_double(repr, "y", anchor_point[NR::Y]);
531 for (Inkscape::Text::Layout::iterator it = this->layout.begin() ; it != this->layout.end() ; ) {
532 Inkscape::XML::Node *line_tspan = xml_doc->createElement("svg:tspan");
533 line_tspan->setAttribute("sodipodi:role", "line");
535 Inkscape::Text::Layout::iterator it_line_end = it;
536 it_line_end.nextStartOfLine();
538 while (it != it_line_end) {
540 Inkscape::XML::Node *span_tspan = xml_doc->createElement("svg:tspan");
541 NR::Point anchor_point = this->layout.characterAnchorPoint(it);
542 // use kerning to simulate justification and whatnot
543 Inkscape::Text::Layout::iterator it_span_end = it;
544 it_span_end.nextStartOfSpan();
545 Inkscape::Text::Layout::OptionalTextTagAttrs attrs;
546 this->layout.simulateLayoutUsingKerning(it, it_span_end, &attrs);
547 // set x,y attributes only when we need to
548 bool set_x = false;
549 bool set_y = false;
550 if (!item->transform.test_identity()) {
551 set_x = set_y = true;
552 } else {
553 Inkscape::Text::Layout::iterator it_chunk_start = it;
554 it_chunk_start.thisStartOfChunk();
555 if (it == it_chunk_start) {
556 set_x = true;
557 // don't set y so linespacing adjustments and things will still work
558 }
559 Inkscape::Text::Layout::iterator it_shape_start = it;
560 it_shape_start.thisStartOfShape();
561 if (it == it_shape_start)
562 set_y = true;
563 }
564 if (set_x && !attrs.dx.empty())
565 attrs.dx[0] = 0.0;
566 TextTagAttributes(attrs).writeTo(span_tspan);
567 if (set_x)
568 sp_repr_set_svg_double(span_tspan, "x", anchor_point[NR::X]); // FIXME: this will pick up the wrong end of counter-directional runs
569 if (set_y)
570 sp_repr_set_svg_double(span_tspan, "y", anchor_point[NR::Y]);
572 SPObject *source_obj = 0;
573 void *rawptr = 0;
574 Glib::ustring::iterator span_text_start_iter;
575 this->layout.getSourceOfCharacter(it, &rawptr, &span_text_start_iter);
576 source_obj = SP_OBJECT (rawptr);
577 gchar *style_text = sp_style_write_difference((SP_IS_STRING(source_obj) ? source_obj->parent : source_obj)->style, this->style);
578 if (style_text && *style_text) {
579 span_tspan->setAttribute("style", style_text);
580 g_free(style_text);
581 }
583 if (SP_IS_STRING(source_obj)) {
584 Glib::ustring *string = &SP_STRING(source_obj)->string;
585 SPObject *span_end_obj = 0;
586 void *rawptr = 0;
587 Glib::ustring::iterator span_text_end_iter;
588 this->layout.getSourceOfCharacter(it_span_end, &rawptr, &span_text_end_iter);
589 span_end_obj = SP_OBJECT(rawptr);
590 if (span_end_obj != source_obj) {
591 if (it_span_end == this->layout.end()) {
592 span_text_end_iter = span_text_start_iter;
593 for (int i = this->layout.iteratorToCharIndex(it_span_end) - this->layout.iteratorToCharIndex(it) ; i ; --i)
594 ++span_text_end_iter;
595 } else
596 span_text_end_iter = string->end(); // spans will never straddle a source boundary
597 }
599 if (span_text_start_iter != span_text_end_iter) {
600 Glib::ustring new_string;
601 while (span_text_start_iter != span_text_end_iter)
602 new_string += *span_text_start_iter++; // grr. no substr() with iterators
603 Inkscape::XML::Node *new_text = xml_doc->createTextNode(new_string.c_str());
604 span_tspan->appendChild(new_text);
605 Inkscape::GC::release(new_text);
606 }
607 }
608 it = it_span_end;
610 line_tspan->appendChild(span_tspan);
611 Inkscape::GC::release(span_tspan);
612 }
613 repr->appendChild(line_tspan);
614 Inkscape::GC::release(line_tspan);
615 }
617 return repr;
618 }
620 SPItem *SPFlowtext::get_frame(SPItem *after)
621 {
622 SPObject *ft = SP_OBJECT (this);
623 SPObject *region = NULL;
625 for (SPObject *o = sp_object_first_child(SP_OBJECT(ft)) ; o != NULL ; o = SP_OBJECT_NEXT(o) ) {
626 if (SP_IS_FLOWREGION(o)) {
627 region = o;
628 break;
629 }
630 }
632 if (!region) return NULL;
634 bool past = false;
635 SPItem *frame = NULL;
637 for (SPObject *o = sp_object_first_child(SP_OBJECT(region)) ; o != NULL ; o = SP_OBJECT_NEXT(o) ) {
638 if (SP_IS_ITEM(o)) {
639 if (after == NULL || past) {
640 frame = SP_ITEM(o);
641 } else {
642 if (SP_ITEM(o) == after) {
643 past = true;
644 }
645 }
646 }
647 }
649 if (!frame) return NULL;
651 if (SP_IS_USE (frame)) {
652 return sp_use_get_original(SP_USE(frame));
653 } else {
654 return frame;
655 }
656 }
658 bool SPFlowtext::has_internal_frame()
659 {
660 SPItem *frame = get_frame(NULL);
662 return (frame && SP_OBJECT(this)->isAncestorOf(SP_OBJECT(frame)) && SP_IS_RECT(frame));
663 }
666 SPItem *create_flowtext_with_internal_frame (SPDesktop *desktop, NR::Point p0, NR::Point p1)
667 {
668 SPDocument *doc = sp_desktop_document (desktop);
670 Inkscape::XML::Document *xml_doc = sp_document_repr_doc(doc);
671 Inkscape::XML::Node *root_repr = xml_doc->createElement("svg:flowRoot");
672 root_repr->setAttribute("xml:space", "preserve"); // we preserve spaces in the text objects we create
673 SPItem *ft_item = SP_ITEM(desktop->currentLayer()->appendChildRepr(root_repr));
674 SPObject *root_object = doc->getObjectByRepr(root_repr);
675 g_assert(SP_IS_FLOWTEXT(root_object));
677 Inkscape::XML::Node *region_repr = xml_doc->createElement("svg:flowRegion");
678 root_repr->appendChild(region_repr);
679 SPObject *region_object = doc->getObjectByRepr(region_repr);
680 g_assert(SP_IS_FLOWREGION(region_object));
682 Inkscape::XML::Node *rect_repr = xml_doc->createElement("svg:rect"); // FIXME: use path!!! after rects are converted to use path
683 region_repr->appendChild(rect_repr);
685 SPObject *rect = doc->getObjectByRepr(rect_repr);
687 p0 = sp_desktop_dt2root_xy_point(desktop, p0);
688 p1 = sp_desktop_dt2root_xy_point(desktop, p1);
689 using NR::X;
690 using NR::Y;
691 NR::Coord const x0 = MIN(p0[X], p1[X]);
692 NR::Coord const y0 = MIN(p0[Y], p1[Y]);
693 NR::Coord const x1 = MAX(p0[X], p1[X]);
694 NR::Coord const y1 = MAX(p0[Y], p1[Y]);
695 NR::Coord const w = x1 - x0;
696 NR::Coord const h = y1 - y0;
698 sp_rect_position_set(SP_RECT(rect), x0, y0, w, h);
699 SP_OBJECT(rect)->updateRepr();
701 Inkscape::XML::Node *para_repr = xml_doc->createElement("svg:flowPara");
702 root_repr->appendChild(para_repr);
703 SPObject *para_object = doc->getObjectByRepr(para_repr);
704 g_assert(SP_IS_FLOWPARA(para_object));
706 Inkscape::XML::Node *text = xml_doc->createTextNode("");
707 para_repr->appendChild(text);
709 Inkscape::GC::release(root_repr);
710 Inkscape::GC::release(region_repr);
711 Inkscape::GC::release(para_repr);
712 Inkscape::GC::release(rect_repr);
714 return ft_item;
715 }
718 /*
719 Local Variables:
720 mode:c++
721 c-file-style:"stroustrup"
722 c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
723 indent-tabs-mode:nil
724 fill-column:99
725 End:
726 */
727 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4 :