1 #define __NR_ARENA_GLYPHS_C__
3 /*
4 * RGBA display list system for inkscape
5 *
6 * Author:
7 * Lauris Kaplinski <lauris@kaplinski.com>
8 *
9 * Copyright (C) 2002 Lauris Kaplinski
10 *
11 * Released under GNU GPL
12 *
13 */
16 #ifdef HAVE_CONFIG_H
17 # include <config.h>
18 #endif
19 #include <libnr/nr-blit.h>
20 #include <libnr/nr-convert2geom.h>
21 #include <2geom/matrix.h>
22 #include "../style.h"
23 #include "nr-arena.h"
24 #include "nr-arena-glyphs.h"
25 #include <cairo.h>
26 #include "inkscape-cairo.h"
28 #ifdef test_glyph_liv
29 #include "../display/canvas-bpath.h"
30 #include <libnrtype/font-instance.h>
31 #include <libnrtype/raster-glyph.h>
32 #include <libnrtype/RasterFont.h>
34 // defined in nr-arena-shape.cpp
35 void nr_pixblock_render_shape_mask_or(NRPixBlock &m, Shape *theS);
36 #endif
38 #ifdef ENABLE_SVG_FONTS
39 #include "nr-svgfonts.h"
40 #endif //#ifdef ENABLE_SVG_FONTS
42 static void nr_arena_glyphs_class_init(NRArenaGlyphsClass *klass);
43 static void nr_arena_glyphs_init(NRArenaGlyphs *glyphs);
44 static void nr_arena_glyphs_finalize(NRObject *object);
46 static guint nr_arena_glyphs_update(NRArenaItem *item, NRRectL *area, NRGC *gc, guint state, guint reset);
47 static guint nr_arena_glyphs_clip(NRArenaItem *item, NRRectL *area, NRPixBlock *pb);
48 static NRArenaItem *nr_arena_glyphs_pick(NRArenaItem *item, Geom::Point p, double delta, unsigned int sticky);
50 static NRArenaItemClass *glyphs_parent_class;
52 NRType
53 nr_arena_glyphs_get_type(void)
54 {
55 static NRType type = 0;
56 if (!type) {
57 type = nr_object_register_type(NR_TYPE_ARENA_ITEM,
58 "NRArenaGlyphs",
59 sizeof(NRArenaGlyphsClass),
60 sizeof(NRArenaGlyphs),
61 (void (*)(NRObjectClass *)) nr_arena_glyphs_class_init,
62 (void (*)(NRObject *)) nr_arena_glyphs_init);
63 }
64 return type;
65 }
67 static void
68 nr_arena_glyphs_class_init(NRArenaGlyphsClass *klass)
69 {
70 NRObjectClass *object_class;
71 NRArenaItemClass *item_class;
73 object_class = (NRObjectClass *) klass;
74 item_class = (NRArenaItemClass *) klass;
76 glyphs_parent_class = (NRArenaItemClass *) ((NRObjectClass *) klass)->parent;
78 object_class->finalize = nr_arena_glyphs_finalize;
79 object_class->cpp_ctor = NRObject::invoke_ctor<NRArenaGlyphs>;
81 item_class->update = nr_arena_glyphs_update;
82 item_class->clip = nr_arena_glyphs_clip;
83 item_class->pick = nr_arena_glyphs_pick;
84 }
86 static void
87 nr_arena_glyphs_init(NRArenaGlyphs *glyphs)
88 {
89 glyphs->style = NULL;
90 glyphs->g_transform.setIdentity();
91 glyphs->font = NULL;
92 glyphs->glyph = 0;
94 glyphs->rfont = NULL;
95 glyphs->sfont = NULL;
96 glyphs->x = glyphs->y = 0.0;
97 }
99 static void
100 nr_arena_glyphs_finalize(NRObject *object)
101 {
102 NRArenaGlyphs *glyphs = static_cast<NRArenaGlyphs *>(object);
104 if (glyphs->rfont) {
105 glyphs->rfont->Unref();
106 glyphs->rfont=NULL;
107 }
108 if (glyphs->sfont) {
109 glyphs->sfont->Unref();
110 glyphs->sfont=NULL;
111 }
113 if (glyphs->font) {
114 glyphs->font->Unref();
115 glyphs->font=NULL;
116 }
118 if (glyphs->style) {
119 sp_style_unref(glyphs->style);
120 glyphs->style = NULL;
121 }
123 ((NRObjectClass *) glyphs_parent_class)->finalize(object);
124 }
126 static guint
127 nr_arena_glyphs_update(NRArenaItem *item, NRRectL */*area*/, NRGC *gc, guint /*state*/, guint /*reset*/)
128 {
129 NRArenaGlyphs *glyphs;
130 raster_font *rfont;
132 glyphs = NR_ARENA_GLYPHS(item);
134 if (!glyphs->font || !glyphs->style)
135 return NR_ARENA_ITEM_STATE_ALL;
136 if ((glyphs->style->fill.isNone()) && (glyphs->style->stroke.isNone()))
137 return NR_ARENA_ITEM_STATE_ALL;
139 NRRect bbox;
140 bbox.x0 = bbox.y0 = NR_HUGE;
141 bbox.x1 = bbox.y1 = -NR_HUGE;
143 float const scale = gc->transform.descrim();
145 if (!glyphs->style->fill.isNone()) {
146 Geom::Matrix t;
147 t = glyphs->g_transform * gc->transform;
148 glyphs->x = t[4];
149 glyphs->y = t[5];
150 t[4]=0;
151 t[5]=0;
152 rfont = glyphs->font->RasterFont(t, 0);
153 if (glyphs->rfont) glyphs->rfont->Unref();
154 glyphs->rfont = rfont;
156 if (glyphs->style->stroke.isNone() || fabs(glyphs->style->stroke_width.computed * scale) <= 0.01) { // Optimization: do fill bbox only if there's no stroke
157 NRRect narea;
158 if ( glyphs->rfont ) glyphs->rfont->BBox(glyphs->glyph, &narea);
159 bbox.x0 = narea.x0 + glyphs->x;
160 bbox.y0 = narea.y0 + glyphs->y;
161 bbox.x1 = narea.x1 + glyphs->x;
162 bbox.y1 = narea.y1 + glyphs->y;
163 }
164 }
166 if (!glyphs->style->stroke.isNone()) {
167 /* Build state data */
168 Geom::Matrix t;
169 t = glyphs->g_transform * gc->transform;
170 glyphs->x = t[4];
171 glyphs->y = t[5];
172 t[4]=0;
173 t[5]=0;
175 if ( fabs(glyphs->style->stroke_width.computed * scale) > 0.01 ) { // sinon c'est 0=oon veut pas de bord
176 font_style nstyl;
177 nstyl.transform = t;
178 nstyl.stroke_width=MAX(0.125, glyphs->style->stroke_width.computed * scale);
179 if ( glyphs->style->stroke_linecap.computed == SP_STROKE_LINECAP_BUTT ) nstyl.stroke_cap=butt_straight;
180 if ( glyphs->style->stroke_linecap.computed == SP_STROKE_LINECAP_ROUND ) nstyl.stroke_cap=butt_round;
181 if ( glyphs->style->stroke_linecap.computed == SP_STROKE_LINECAP_SQUARE ) nstyl.stroke_cap=butt_square;
182 if ( glyphs->style->stroke_linejoin.computed == SP_STROKE_LINEJOIN_MITER ) nstyl.stroke_join=join_pointy;
183 if ( glyphs->style->stroke_linejoin.computed == SP_STROKE_LINEJOIN_ROUND ) nstyl.stroke_join=join_round;
184 if ( glyphs->style->stroke_linejoin.computed == SP_STROKE_LINEJOIN_BEVEL ) nstyl.stroke_join=join_straight;
185 nstyl.stroke_miter_limit = glyphs->style->stroke_miterlimit.value;
186 nstyl.nbDash=0;
187 nstyl.dash_offset = 0;
188 nstyl.dashes=NULL;
189 if ( glyphs->style->stroke_dash.n_dash > 0 ) {
190 nstyl.dash_offset = glyphs->style->stroke_dash.offset * scale;
191 nstyl.nbDash=glyphs->style->stroke_dash.n_dash;
192 nstyl.dashes=(double*)malloc(nstyl.nbDash*sizeof(double));
193 for (int i = 0; i < nstyl.nbDash; i++) nstyl.dashes[i]= glyphs->style->stroke_dash.dash[i] * scale;
194 }
195 rfont = glyphs->font->RasterFont( nstyl);
196 if ( nstyl.dashes ) free(nstyl.dashes);
197 if (glyphs->sfont) glyphs->sfont->Unref();
198 glyphs->sfont = rfont;
200 NRRect narea;
201 if ( glyphs->sfont ) glyphs->sfont->BBox(glyphs->glyph, &narea);
202 narea.x0-=nstyl.stroke_width;
203 narea.y0-=nstyl.stroke_width;
204 narea.x1+=nstyl.stroke_width;
205 narea.y1+=nstyl.stroke_width;
206 bbox.x0 = narea.x0 + glyphs->x;
207 bbox.y0 = narea.y0 + glyphs->y;
208 bbox.x1 = narea.x1 + glyphs->x;
209 bbox.y1 = narea.y1 + glyphs->y;
210 }
211 }
212 if (nr_rect_d_test_empty(bbox)) return NR_ARENA_ITEM_STATE_ALL;
214 item->bbox.x0 = (gint32)(bbox.x0 - 1.0);
215 item->bbox.y0 = (gint32)(bbox.y0 - 1.0);
216 item->bbox.x1 = (gint32)(bbox.x1 + 1.0);
217 item->bbox.y1 = (gint32)(bbox.y1 + 1.0);
218 nr_arena_request_render_rect(item->arena, &item->bbox);
220 return NR_ARENA_ITEM_STATE_ALL;
221 }
223 static guint
224 nr_arena_glyphs_clip(NRArenaItem *item, NRRectL */*area*/, NRPixBlock */*pb*/)
225 {
226 NRArenaGlyphs *glyphs;
228 glyphs = NR_ARENA_GLYPHS(item);
230 if (!glyphs->font ) return item->state;
232 /* TODO : render to greyscale pixblock provided for clipping */
234 return item->state;
235 }
237 static NRArenaItem *
238 nr_arena_glyphs_pick(NRArenaItem *item, Geom::Point p, gdouble /*delta*/, unsigned int /*sticky*/)
239 {
240 NRArenaGlyphs *glyphs;
242 glyphs = NR_ARENA_GLYPHS(item);
244 if (!glyphs->font ) return NULL;
245 if (!glyphs->style) return NULL;
247 double const x = p[Geom::X];
248 double const y = p[Geom::Y];
249 /* With text we take a simple approach: pick if the point is in a characher bbox */
250 if ((x >= item->bbox.x0) && (y >= item->bbox.y0) && (x <= item->bbox.x1) && (y <= item->bbox.y1)) return item;
252 return NULL;
253 }
255 void
256 nr_arena_glyphs_set_path(NRArenaGlyphs *glyphs, SPCurve */*curve*/, unsigned int /*lieutenant*/, font_instance *font, gint glyph, Geom::Matrix const *transform)
257 {
258 nr_return_if_fail(glyphs != NULL);
259 nr_return_if_fail(NR_IS_ARENA_GLYPHS(glyphs));
261 nr_arena_item_request_render(NR_ARENA_ITEM(glyphs));
263 if (transform) {
264 glyphs->g_transform = *transform;
265 } else {
266 glyphs->g_transform.setIdentity();
267 }
269 if (font) font->Ref();
270 if (glyphs->font) glyphs->font->Unref();
271 glyphs->font=font;
272 glyphs->glyph = glyph;
274 nr_arena_item_request_update(NR_ARENA_ITEM(glyphs), NR_ARENA_ITEM_STATE_ALL, FALSE);
275 }
277 void
278 nr_arena_glyphs_set_style(NRArenaGlyphs *glyphs, SPStyle *style)
279 {
280 nr_return_if_fail(glyphs != NULL);
281 nr_return_if_fail(NR_IS_ARENA_GLYPHS(glyphs));
283 if (style) sp_style_ref(style);
284 if (glyphs->style) sp_style_unref(glyphs->style);
285 glyphs->style = style;
287 nr_arena_item_request_update(NR_ARENA_ITEM(glyphs), NR_ARENA_ITEM_STATE_ALL, FALSE);
288 }
290 static guint
291 nr_arena_glyphs_fill_mask(NRArenaGlyphs *glyphs, NRRectL *area, NRPixBlock *m)
292 {
293 /* fixme: area == m->area, so merge these */
295 NRArenaItem *item = NR_ARENA_ITEM(glyphs);
297 if (glyphs->rfont && nr_rect_l_test_intersect_ptr(area, &item->bbox)) {
298 raster_glyph *g = glyphs->rfont->GetGlyph(glyphs->glyph);
299 if ( g ) g->Blit(Geom::Point(glyphs->x, glyphs->y), *m);
300 }
302 return item->state;
303 }
305 static guint
306 nr_arena_glyphs_stroke_mask(NRArenaGlyphs *glyphs, NRRectL *area, NRPixBlock *m)
307 {
308 NRArenaItem *item = NR_ARENA_ITEM(glyphs);
309 if (glyphs->sfont && nr_rect_l_test_intersect_ptr(area, &item->bbox)) {
310 raster_glyph *g=glyphs->sfont->GetGlyph(glyphs->glyph);
311 if ( g ) g->Blit(Geom::Point(glyphs->x, glyphs->y),*m);
312 }
314 return item->state;
315 }
317 static void nr_arena_glyphs_group_class_init(NRArenaGlyphsGroupClass *klass);
318 static void nr_arena_glyphs_group_init(NRArenaGlyphsGroup *group);
319 static void nr_arena_glyphs_group_finalize(NRObject *object);
321 static guint nr_arena_glyphs_group_update(NRArenaItem *item, NRRectL *area, NRGC *gc, guint state, guint reset);
322 static unsigned int nr_arena_glyphs_group_render(cairo_t *ct, NRArenaItem *item, NRRectL *area, NRPixBlock *pb, unsigned int flags);
323 static unsigned int nr_arena_glyphs_group_clip(NRArenaItem *item, NRRectL *area, NRPixBlock *pb);
324 static NRArenaItem *nr_arena_glyphs_group_pick(NRArenaItem *item, Geom::Point p, gdouble delta, unsigned int sticky);
326 static NRArenaGroupClass *group_parent_class;
328 NRType
329 nr_arena_glyphs_group_get_type(void)
330 {
331 static NRType type = 0;
332 if (!type) {
333 type = nr_object_register_type(NR_TYPE_ARENA_GROUP,
334 "NRArenaGlyphsGroup",
335 sizeof(NRArenaGlyphsGroupClass),
336 sizeof(NRArenaGlyphsGroup),
337 (void (*)(NRObjectClass *)) nr_arena_glyphs_group_class_init,
338 (void (*)(NRObject *)) nr_arena_glyphs_group_init);
339 }
340 return type;
341 }
343 static void
344 nr_arena_glyphs_group_class_init(NRArenaGlyphsGroupClass *klass)
345 {
346 NRObjectClass *object_class;
347 NRArenaItemClass *item_class;
349 object_class = (NRObjectClass *) klass;
350 item_class = (NRArenaItemClass *) klass;
352 group_parent_class = (NRArenaGroupClass *) ((NRObjectClass *) klass)->parent;
354 object_class->finalize = nr_arena_glyphs_group_finalize;
355 object_class->cpp_ctor = NRObject::invoke_ctor<NRArenaGlyphsGroup>;
357 item_class->update = nr_arena_glyphs_group_update;
358 item_class->render = nr_arena_glyphs_group_render;
359 item_class->clip = nr_arena_glyphs_group_clip;
360 item_class->pick = nr_arena_glyphs_group_pick;
361 }
363 static void
364 nr_arena_glyphs_group_init(NRArenaGlyphsGroup *group)
365 {
366 group->style = NULL;
367 group->paintbox.x0 = group->paintbox.y0 = 0.0F;
368 group->paintbox.x1 = group->paintbox.y1 = 1.0F;
370 group->fill_painter = NULL;
371 group->stroke_painter = NULL;
372 }
374 static void
375 nr_arena_glyphs_group_finalize(NRObject *object)
376 {
377 NRArenaGlyphsGroup *group=static_cast<NRArenaGlyphsGroup *>(object);
379 if (group->fill_painter) {
380 sp_painter_free(group->fill_painter);
381 group->fill_painter = NULL;
382 }
384 if (group->stroke_painter) {
385 sp_painter_free(group->stroke_painter);
386 group->stroke_painter = NULL;
387 }
389 if (group->style) {
390 sp_style_unref(group->style);
391 group->style = NULL;
392 }
394 ((NRObjectClass *) group_parent_class)->finalize(object);
395 }
397 static guint
398 nr_arena_glyphs_group_update(NRArenaItem *item, NRRectL *area, NRGC *gc, guint state, guint reset)
399 {
400 NRArenaGlyphsGroup *group = NR_ARENA_GLYPHS_GROUP(item);
402 if (group->fill_painter) {
403 sp_painter_free(group->fill_painter);
404 group->fill_painter = NULL;
405 }
407 if (group->stroke_painter) {
408 sp_painter_free(group->stroke_painter);
409 group->stroke_painter = NULL;
410 }
412 item->render_opacity = TRUE;
413 if (group->style->fill.isPaintserver()) {
414 group->fill_painter = sp_paint_server_painter_new(SP_STYLE_FILL_SERVER(group->style),
415 gc->transform, gc->parent->transform,
416 &group->paintbox);
417 item->render_opacity = FALSE;
418 }
420 if (group->style->stroke.isPaintserver()) {
421 group->stroke_painter = sp_paint_server_painter_new(SP_STYLE_STROKE_SERVER(group->style),
422 gc->transform, gc->parent->transform,
423 &group->paintbox);
424 item->render_opacity = FALSE;
425 }
427 if ( item->render_opacity == TRUE && !group->style->stroke.isNone() && !group->style->fill.isNone() ) {
428 item->render_opacity=FALSE;
429 }
431 if (((NRArenaItemClass *) group_parent_class)->update)
432 return ((NRArenaItemClass *) group_parent_class)->update(item, area, gc, state, reset);
434 return NR_ARENA_ITEM_STATE_ALL;
435 }
438 static unsigned int
439 nr_arena_glyphs_group_render(cairo_t *ct, NRArenaItem *item, NRRectL *area, NRPixBlock *pb, unsigned int /*flags*/)
440 {
441 NRArenaItem *child;
443 NRArenaGroup *group = NR_ARENA_GROUP(item);
444 NRArenaGlyphsGroup *ggroup = NR_ARENA_GLYPHS_GROUP(item);
445 SPStyle const *style = ggroup->style;
447 guint ret = item->state;
449 if (item->arena->rendermode == Inkscape::RENDERMODE_OUTLINE) {
451 if (!ct)
452 return item->state;
454 guint32 rgba = item->arena->outlinecolor;
455 // FIXME: we use RGBA buffers but cairo writes BGRA (on i386), so we must cheat
456 // by setting color channels in the "wrong" order
457 cairo_set_source_rgba(ct, SP_RGBA32_B_F(rgba), SP_RGBA32_G_F(rgba), SP_RGBA32_R_F(rgba), SP_RGBA32_A_F(rgba));
458 cairo_set_tolerance(ct, 1.25); // low quality, but good enough for outline mode
460 for (child = group->children; child != NULL; child = child->next) {
461 NRArenaGlyphs *g = NR_ARENA_GLYPHS(child);
463 Geom::PathVector const * pathv = g->font->PathVector(g->glyph);
465 cairo_new_path(ct);
466 Geom::Matrix transform = g->g_transform * group->ctm;
467 feed_pathvector_to_cairo (ct, *pathv, transform, to_2geom((pb->area).upgrade()), false, 0);
468 cairo_fill(ct);
469 pb->empty = FALSE;
470 }
472 return ret;
473 }
477 /* Fill */
478 if (!style->fill.isNone() || item->arena->rendermode == Inkscape::RENDERMODE_OUTLINE) {
479 NRPixBlock m;
480 nr_pixblock_setup_fast(&m, NR_PIXBLOCK_MODE_A8, area->x0, area->y0, area->x1, area->y1, TRUE);
482 // if memory allocation failed, abort
483 if (m.size != NR_PIXBLOCK_SIZE_TINY && m.data.px == NULL) {
484 nr_pixblock_release (&m);
485 return (item->state);
486 }
488 m.visible_area = pb->visible_area;
490 /* Render children fill mask */
491 for (child = group->children; child != NULL; child = child->next) {
492 ret = nr_arena_glyphs_fill_mask(NR_ARENA_GLYPHS(child), area, &m);
493 if (!(ret & NR_ARENA_ITEM_STATE_RENDER)) {
494 nr_pixblock_release(&m);
495 return ret;
496 }
497 }
499 /* Composite into buffer */
500 if (style->fill.isPaintserver()) {
501 if (ggroup->fill_painter) {
502 nr_arena_render_paintserver_fill(pb, area, ggroup->fill_painter, SP_SCALE24_TO_FLOAT(style->fill_opacity.value), &m);
503 }
504 } else if (style->fill.isColor() || item->arena->rendermode == Inkscape::RENDERMODE_OUTLINE) {
505 guint32 rgba;
506 if (item->arena->rendermode == Inkscape::RENDERMODE_OUTLINE) {
507 // In outline mode, render fill only, using outlinecolor
508 rgba = item->arena->outlinecolor;
509 } else if ( item->render_opacity ) {
510 rgba = style->fill.value.color.toRGBA32( SP_SCALE24_TO_FLOAT(style->fill_opacity.value) *
511 SP_SCALE24_TO_FLOAT(style->opacity.value) );
512 } else {
513 rgba = style->fill.value.color.toRGBA32( SP_SCALE24_TO_FLOAT(style->fill_opacity.value) );
514 }
515 nr_blit_pixblock_mask_rgba32(pb, &m, rgba);
516 pb->empty = FALSE;
517 }
519 nr_pixblock_release(&m);
520 }
522 /* Stroke */
523 if (!style->stroke.isNone() && !(item->arena->rendermode == Inkscape::RENDERMODE_OUTLINE)) {
524 NRPixBlock m;
525 guint32 rgba;
526 nr_pixblock_setup_fast(&m, NR_PIXBLOCK_MODE_A8, area->x0, area->y0, area->x1, area->y1, TRUE);
528 // if memory allocation failed, abort
529 if (m.size != NR_PIXBLOCK_SIZE_TINY && m.data.px == NULL) {
530 nr_pixblock_release (&m);
531 return (item->state);
532 }
534 m.visible_area = pb->visible_area;
535 /* Render children stroke mask */
536 for (child = group->children; child != NULL; child = child->next) {
537 ret = nr_arena_glyphs_stroke_mask(NR_ARENA_GLYPHS(child), area, &m);
538 if (!(ret & NR_ARENA_ITEM_STATE_RENDER)) {
539 nr_pixblock_release(&m);
540 return ret;
541 }
542 }
543 /* Composite into buffer */
544 if (style->stroke.isPaintserver()) {
545 if (ggroup->stroke_painter) {
546 nr_arena_render_paintserver_fill(pb, area, ggroup->stroke_painter, SP_SCALE24_TO_FLOAT(style->stroke_opacity.value), &m);
547 }
548 } else if (style->stroke.isColor()) {
549 if ( item->render_opacity ) {
550 rgba = style->stroke.value.color.toRGBA32( SP_SCALE24_TO_FLOAT(style->stroke_opacity.value) *
551 SP_SCALE24_TO_FLOAT(style->opacity.value) );
552 } else {
553 rgba = style->stroke.value.color.toRGBA32( SP_SCALE24_TO_FLOAT(style->stroke_opacity.value) );
554 }
555 nr_blit_pixblock_mask_rgba32(pb, &m, rgba);
556 pb->empty = FALSE;
557 } else {
558 // nothing
559 }
560 nr_pixblock_release(&m);
561 }
563 return ret;
564 }
566 static unsigned int
567 nr_arena_glyphs_group_clip(NRArenaItem *item, NRRectL *area, NRPixBlock *pb)
568 {
569 NRArenaGroup *group = NR_ARENA_GROUP(item);
571 guint ret = item->state;
573 /* Render children fill mask */
574 for (NRArenaItem *child = group->children; child != NULL; child = child->next) {
575 ret = nr_arena_glyphs_fill_mask(NR_ARENA_GLYPHS(child), area, pb);
576 if (!(ret & NR_ARENA_ITEM_STATE_RENDER)) return ret;
577 }
579 return ret;
580 }
582 static NRArenaItem *
583 nr_arena_glyphs_group_pick(NRArenaItem *item, Geom::Point p, gdouble delta, unsigned int sticky)
584 {
585 NRArenaItem *picked = NULL;
587 if (((NRArenaItemClass *) group_parent_class)->pick)
588 picked = ((NRArenaItemClass *) group_parent_class)->pick(item, p, delta, sticky);
590 if (picked) picked = item;
592 return picked;
593 }
595 void
596 nr_arena_glyphs_group_clear(NRArenaGlyphsGroup *sg)
597 {
598 NRArenaGroup *group = NR_ARENA_GROUP(sg);
600 nr_arena_item_request_render(NR_ARENA_ITEM(group));
602 while (group->children) {
603 nr_arena_item_remove_child(NR_ARENA_ITEM(group), group->children);
604 }
605 }
607 void
608 nr_arena_glyphs_group_add_component(NRArenaGlyphsGroup *sg, font_instance *font, int glyph, Geom::Matrix const &transform)
609 {
610 NRArenaGroup *group;
612 group = NR_ARENA_GROUP(sg);
614 Geom::PathVector const * pathv = ( font
615 ? font->PathVector(glyph)
616 : NULL );
617 if ( pathv ) {
618 nr_arena_item_request_render(NR_ARENA_ITEM(group));
620 NRArenaItem *new_arena = NRArenaGlyphs::create(group->arena);
621 nr_arena_item_append_child(NR_ARENA_ITEM(group), new_arena);
622 nr_arena_item_unref(new_arena);
623 nr_arena_glyphs_set_path(NR_ARENA_GLYPHS(new_arena), NULL, FALSE, font, glyph, &transform);
624 nr_arena_glyphs_set_style(NR_ARENA_GLYPHS(new_arena), sg->style);
625 }
626 }
628 void
629 nr_arena_glyphs_group_set_style(NRArenaGlyphsGroup *sg, SPStyle *style)
630 {
631 nr_return_if_fail(sg != NULL);
632 nr_return_if_fail(NR_IS_ARENA_GLYPHS_GROUP(sg));
634 NRArenaGroup *group = NR_ARENA_GROUP(sg);
636 if (style) sp_style_ref(style);
637 if (sg->style) sp_style_unref(sg->style);
638 sg->style = style;
640 for (NRArenaItem *child = group->children; child != NULL; child = child->next) {
641 nr_return_if_fail(NR_IS_ARENA_GLYPHS(child));
642 nr_arena_glyphs_set_style(NR_ARENA_GLYPHS(child), sg->style);
643 }
645 nr_arena_item_request_update(NR_ARENA_ITEM(sg), NR_ARENA_ITEM_STATE_ALL, FALSE);
646 }
648 void
649 nr_arena_glyphs_group_set_paintbox(NRArenaGlyphsGroup *gg, NRRect const *pbox)
650 {
651 nr_return_if_fail(gg != NULL);
652 nr_return_if_fail(NR_IS_ARENA_GLYPHS_GROUP(gg));
653 nr_return_if_fail(pbox != NULL);
655 if ((pbox->x0 < pbox->x1) && (pbox->y0 < pbox->y1)) {
656 gg->paintbox.x0 = pbox->x0;
657 gg->paintbox.y0 = pbox->y0;
658 gg->paintbox.x1 = pbox->x1;
659 gg->paintbox.y1 = pbox->y1;
660 } else {
661 /* fixme: We kill warning, although not sure what to do here (Lauris) */
662 gg->paintbox.x0 = gg->paintbox.y0 = 0.0F;
663 gg->paintbox.x1 = gg->paintbox.y1 = 256.0F;
664 }
666 nr_arena_item_request_update(NR_ARENA_ITEM(gg), NR_ARENA_ITEM_STATE_ALL, FALSE);
667 }
670 /*
671 Local Variables:
672 mode:c++
673 c-file-style:"stroustrup"
674 c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
675 indent-tabs-mode:nil
676 fill-column:99
677 End:
678 */
679 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=99 :