1 #define __NR_ARENA_SHAPE_C__
3 /*
4 * RGBA display list system for inkscape
5 *
6 * Author:
7 * Lauris Kaplinski <lauris@kaplinski.com>
8 *
9 * Copyright (C) 2001-2002 Lauris Kaplinski
10 * Copyright (C) 2001 Ximian, Inc.
11 *
12 * Released under GNU GPL, read the file 'COPYING' for more information
13 */
17 #include <display/canvas-arena.h>
18 #include <display/nr-arena.h>
19 #include <display/nr-arena-shape.h>
20 #include "display/nr-filter.h"
21 #include "display/nr-filter-gaussian.h"
22 #include "display/nr-filter-types.h"
23 #include <libnr/n-art-bpath.h>
24 #include <libnr/nr-path.h>
25 #include <libnr/nr-pixops.h>
26 #include <libnr/nr-matrix-ops.h>
27 #include <libnr/nr-matrix-fns.h>
28 #include <libnr/nr-blit.h>
29 #include <livarot/Path.h>
30 #include <livarot/float-line.h>
31 #include <livarot/int-line.h>
32 #include <style.h>
33 #include "prefs-utils.h"
34 #include "sp-filter.h"
35 #include "sp-gaussian-blur.h"
36 #include "inkscape-cairo.h"
38 #include <cairo.h>
40 //int showRuns=0;
41 void nr_pixblock_render_shape_mask_or(NRPixBlock &m,Shape* theS);
43 static void nr_arena_shape_class_init(NRArenaShapeClass *klass);
44 static void nr_arena_shape_init(NRArenaShape *shape);
45 static void nr_arena_shape_finalize(NRObject *object);
47 static NRArenaItem *nr_arena_shape_children(NRArenaItem *item);
48 static void nr_arena_shape_add_child(NRArenaItem *item, NRArenaItem *child, NRArenaItem *ref);
49 static void nr_arena_shape_remove_child(NRArenaItem *item, NRArenaItem *child);
50 static void nr_arena_shape_set_child_position(NRArenaItem *item, NRArenaItem *child, NRArenaItem *ref);
52 static guint nr_arena_shape_update(NRArenaItem *item, NRRectL *area, NRGC *gc, guint state, guint reset);
53 static unsigned int nr_arena_shape_render(cairo_t *ct, NRArenaItem *item, NRRectL *area, NRPixBlock *pb, unsigned int flags);
54 static guint nr_arena_shape_clip(NRArenaItem *item, NRRectL *area, NRPixBlock *pb);
55 static NRArenaItem *nr_arena_shape_pick(NRArenaItem *item, NR::Point p, double delta, unsigned int sticky);
57 static NRArenaItemClass *shape_parent_class;
59 NRType
60 nr_arena_shape_get_type(void)
61 {
62 static NRType type = 0;
63 if (!type) {
64 type = nr_object_register_type(NR_TYPE_ARENA_ITEM,
65 "NRArenaShape",
66 sizeof(NRArenaShapeClass),
67 sizeof(NRArenaShape),
68 (void (*)(NRObjectClass *)) nr_arena_shape_class_init,
69 (void (*)(NRObject *)) nr_arena_shape_init);
70 }
71 return type;
72 }
74 static void
75 nr_arena_shape_class_init(NRArenaShapeClass *klass)
76 {
77 NRObjectClass *object_class;
78 NRArenaItemClass *item_class;
80 object_class = (NRObjectClass *) klass;
81 item_class = (NRArenaItemClass *) klass;
83 shape_parent_class = (NRArenaItemClass *) ((NRObjectClass *) klass)->parent;
85 object_class->finalize = nr_arena_shape_finalize;
86 object_class->cpp_ctor = NRObject::invoke_ctor<NRArenaShape>;
88 item_class->children = nr_arena_shape_children;
89 item_class->add_child = nr_arena_shape_add_child;
90 item_class->set_child_position = nr_arena_shape_set_child_position;
91 item_class->remove_child = nr_arena_shape_remove_child;
92 item_class->update = nr_arena_shape_update;
93 item_class->render = nr_arena_shape_render;
94 item_class->clip = nr_arena_shape_clip;
95 item_class->pick = nr_arena_shape_pick;
96 }
98 /**
99 * Initializes the arena shape, setting all parameters to null, 0, false,
100 * or other defaults
101 */
102 static void
103 nr_arena_shape_init(NRArenaShape *shape)
104 {
105 shape->curve = NULL;
106 shape->style = NULL;
107 shape->paintbox.x0 = shape->paintbox.y0 = 0.0F;
108 shape->paintbox.x1 = shape->paintbox.y1 = 256.0F;
110 nr_matrix_set_identity(&shape->ctm);
111 shape->fill_painter = NULL;
112 shape->stroke_painter = NULL;
113 shape->cached_fill = NULL;
114 shape->cached_stroke = NULL;
115 shape->cached_fpartialy = false;
116 shape->cached_spartialy = false;
117 shape->fill_shp = NULL;
118 shape->stroke_shp = NULL;
120 shape->delayed_shp = false;
122 shape->approx_bbox.x0 = shape->approx_bbox.y0 = 0;
123 shape->approx_bbox.x1 = shape->approx_bbox.y1 = 0;
124 nr_matrix_set_identity(&shape->cached_fctm);
125 nr_matrix_set_identity(&shape->cached_sctm);
127 shape->markers = NULL;
129 shape->last_pick = NULL;
130 shape->repick_after = 0;
131 }
133 static void
134 nr_arena_shape_finalize(NRObject *object)
135 {
136 NRArenaShape *shape = (NRArenaShape *) object;
138 if (shape->fill_shp) delete shape->fill_shp;
139 if (shape->stroke_shp) delete shape->stroke_shp;
140 if (shape->cached_fill) delete shape->cached_fill;
141 if (shape->cached_stroke) delete shape->cached_stroke;
142 if (shape->fill_painter) sp_painter_free(shape->fill_painter);
143 if (shape->stroke_painter) sp_painter_free(shape->stroke_painter);
145 if (shape->style) sp_style_unref(shape->style);
146 if (shape->curve) sp_curve_unref(shape->curve);
148 ((NRObjectClass *) shape_parent_class)->finalize(object);
149 }
151 /**
152 * Retrieves the markers from the item
153 */
154 static NRArenaItem *
155 nr_arena_shape_children(NRArenaItem *item)
156 {
157 NRArenaShape *shape = (NRArenaShape *) item;
159 return shape->markers;
160 }
162 /**
163 * Attaches child to item, and if ref is not NULL, sets it and ref->next as
164 * the prev and next items. If ref is NULL, then it sets the item's markers
165 * as the next items.
166 */
167 static void
168 nr_arena_shape_add_child(NRArenaItem *item, NRArenaItem *child, NRArenaItem *ref)
169 {
170 NRArenaShape *shape = (NRArenaShape *) item;
172 if (!ref) {
173 shape->markers = nr_arena_item_attach(item, child, NULL, shape->markers);
174 } else {
175 ref->next = nr_arena_item_attach(item, child, ref, ref->next);
176 }
178 nr_arena_item_request_update(item, NR_ARENA_ITEM_STATE_ALL, FALSE);
179 }
181 /**
182 * Removes child from the shape. If there are no prev items in
183 * the child, it sets items' markers to the next item in the child.
184 */
185 static void
186 nr_arena_shape_remove_child(NRArenaItem *item, NRArenaItem *child)
187 {
188 NRArenaShape *shape = (NRArenaShape *) item;
190 if (child->prev) {
191 nr_arena_item_detach(item, child);
192 } else {
193 shape->markers = nr_arena_item_detach(item, child);
194 }
196 nr_arena_item_request_update(item, NR_ARENA_ITEM_STATE_ALL, FALSE);
197 }
199 /**
200 * Detaches child from item, and if there are no previous items in child, it
201 * sets item's markers to the child. It then attaches the child back onto the item.
202 * If ref is null, it sets the markers to be the next item, otherwise it uses
203 * the next/prev items in ref.
204 */
205 static void
206 nr_arena_shape_set_child_position(NRArenaItem *item, NRArenaItem *child, NRArenaItem *ref)
207 {
208 NRArenaShape *shape = (NRArenaShape *) item;
210 if (child->prev) {
211 nr_arena_item_detach(item, child);
212 } else {
213 shape->markers = nr_arena_item_detach(item, child);
214 }
216 if (!ref) {
217 shape->markers = nr_arena_item_attach(item, child, NULL, shape->markers);
218 } else {
219 ref->next = nr_arena_item_attach(item, child, ref, ref->next);
220 }
222 nr_arena_item_request_render(child);
223 }
225 void nr_arena_shape_update_stroke(NRArenaShape *shape, NRGC* gc, NRRectL *area);
226 void nr_arena_shape_update_fill(NRArenaShape *shape, NRGC *gc, NRRectL *area, bool force_shape = false);
227 void nr_arena_shape_add_bboxes(NRArenaShape* shape,NRRect &bbox);
229 /**
230 * Updates the arena shape 'item' and all of its children, including the markers.
231 */
232 static guint
233 nr_arena_shape_update(NRArenaItem *item, NRRectL *area, NRGC *gc, guint state, guint reset)
234 {
235 NRRect bbox;
237 NRArenaShape *shape = NR_ARENA_SHAPE(item);
239 unsigned int beststate = NR_ARENA_ITEM_STATE_ALL;
241 unsigned int newstate;
242 for (NRArenaItem *child = shape->markers; child != NULL; child = child->next) {
243 newstate = nr_arena_item_invoke_update(child, area, gc, state, reset);
244 beststate = beststate & newstate;
245 }
247 if (!(state & NR_ARENA_ITEM_STATE_RENDER)) {
248 /* We do not have to create rendering structures */
249 shape->ctm = gc->transform;
250 if (state & NR_ARENA_ITEM_STATE_BBOX) {
251 if (shape->curve) {
252 NRBPath bp;
253 /* fixme: */
254 bbox.x0 = bbox.y0 = NR_HUGE;
255 bbox.x1 = bbox.y1 = -NR_HUGE;
256 bp.path = SP_CURVE_BPATH(shape->curve);
257 nr_path_matrix_bbox_union(&bp, gc->transform, &bbox);
258 item->bbox.x0 = (gint32)(bbox.x0 - 1.0F);
259 item->bbox.y0 = (gint32)(bbox.y0 - 1.0F);
260 item->bbox.x1 = (gint32)(bbox.x1 + 1.9999F);
261 item->bbox.y1 = (gint32)(bbox.y1 + 1.9999F);
262 }
263 if (beststate & NR_ARENA_ITEM_STATE_BBOX) {
264 for (NRArenaItem *child = shape->markers; child != NULL; child = child->next) {
265 nr_rect_l_union(&item->bbox, &item->bbox, &child->bbox);
266 }
267 }
268 }
269 return (state | item->state);
270 }
272 shape->delayed_shp=true;
273 shape->ctm = gc->transform;
274 bbox.x0 = bbox.y0 = NR_HUGE;
275 bbox.x1 = bbox.y1 = -NR_HUGE;
277 bool outline = (NR_ARENA_ITEM(shape)->arena->rendermode == RENDERMODE_OUTLINE);
279 if (shape->curve) {
280 NRBPath bp;
281 /* fixme: */
282 bbox.x0 = bbox.y0 = NR_HUGE;
283 bbox.x1 = bbox.y1 = -NR_HUGE;
284 bp.path = SP_CURVE_BPATH(shape->curve);
285 nr_path_matrix_bbox_union(&bp, gc->transform, &bbox);
286 if (shape->_stroke.paint.type() != NRArenaShape::Paint::NONE || outline) {
287 float width, scale;
288 scale = NR_MATRIX_DF_EXPANSION(&gc->transform);
289 width = MAX(0.125, shape->_stroke.width * scale);
290 if ( fabs(shape->_stroke.width * scale) > 0.01 ) { // sinon c'est 0=oon veut pas de bord
291 bbox.x0-=width;
292 bbox.x1+=width;
293 bbox.y0-=width;
294 bbox.y1+=width;
295 }
296 // those pesky miters, now
297 float miterMax=width*shape->_stroke.mitre_limit;
298 if ( miterMax > 0.01 ) {
299 // grunt mode. we should compute the various miters instead (one for each point on the curve)
300 bbox.x0-=miterMax;
301 bbox.x1+=miterMax;
302 bbox.y0-=miterMax;
303 bbox.y1+=miterMax;
304 }
305 }
306 } else {
307 }
308 shape->approx_bbox.x0 = (gint32)(bbox.x0 - 1.0F);
309 shape->approx_bbox.y0 = (gint32)(bbox.y0 - 1.0F);
310 shape->approx_bbox.x1 = (gint32)(bbox.x1 + 1.9999F);
311 shape->approx_bbox.y1 = (gint32)(bbox.y1 + 1.9999F);
312 if ( area && nr_rect_l_test_intersect(area, &shape->approx_bbox) ) shape->delayed_shp=false;
314 /* Release state data */
315 if (TRUE || !nr_matrix_test_transform_equal(&gc->transform, &shape->ctm, NR_EPSILON)) {
316 /* Concept test */
317 if (shape->fill_shp) {
318 delete shape->fill_shp;
319 shape->fill_shp = NULL;
320 }
321 }
322 if (shape->stroke_shp) {
323 delete shape->stroke_shp;
324 shape->stroke_shp = NULL;
325 }
326 if (shape->fill_painter) {
327 sp_painter_free(shape->fill_painter);
328 shape->fill_painter = NULL;
329 }
330 if (shape->stroke_painter) {
331 sp_painter_free(shape->stroke_painter);
332 shape->stroke_painter = NULL;
333 }
335 if (!shape->curve ||
336 !shape->style ||
337 sp_curve_is_empty(shape->curve) ||
338 (( shape->_fill.paint.type() == NRArenaShape::Paint::NONE ) &&
339 ( shape->_stroke.paint.type() == NRArenaShape::Paint::NONE && !outline) ))
340 {
341 item->bbox = shape->approx_bbox;
342 return NR_ARENA_ITEM_STATE_ALL;
343 }
345 /* Build state data */
346 if ( shape->delayed_shp ) {
347 item->bbox=shape->approx_bbox;
348 } else {
349 nr_arena_shape_update_stroke(shape, gc, area);
350 nr_arena_shape_update_fill(shape, gc, area);
352 bbox.x0 = bbox.y0 = bbox.x1 = bbox.y1 = 0.0;
353 nr_arena_shape_add_bboxes(shape,bbox);
355 shape->approx_bbox.x0 = (gint32)(bbox.x0 - 1.0F);
356 shape->approx_bbox.y0 = (gint32)(bbox.y0 - 1.0F);
357 shape->approx_bbox.x1 = (gint32)(bbox.x1 + 1.9999F);
358 shape->approx_bbox.y1 = (gint32)(bbox.y1 + 1.9999F);
359 }
361 if (nr_rect_d_test_empty(&bbox)) return NR_ARENA_ITEM_STATE_ALL;
363 item->bbox.x0 = (gint32)(bbox.x0 - 1.0F);
364 item->bbox.y0 = (gint32)(bbox.y0 - 1.0F);
365 item->bbox.x1 = (gint32)(bbox.x1 + 1.0F);
366 item->bbox.y1 = (gint32)(bbox.y1 + 1.0F);
367 nr_arena_request_render_rect(item->arena, &item->bbox);
369 item->render_opacity = TRUE;
370 if ( shape->_fill.paint.type() == NRArenaShape::Paint::SERVER ) {
371 if (gc && gc->parent) {
372 shape->fill_painter = sp_paint_server_painter_new(shape->_fill.paint.server(),
373 NR::Matrix(&gc->transform), NR::Matrix(&gc->parent->transform),
374 &shape->paintbox);
375 }
376 item->render_opacity = FALSE;
377 }
378 if ( shape->_stroke.paint.type() == NRArenaShape::Paint::SERVER ) {
379 if (gc && gc->parent) {
380 shape->stroke_painter = sp_paint_server_painter_new(shape->_stroke.paint.server(),
381 NR::Matrix(&gc->transform), NR::Matrix(&gc->parent->transform),
382 &shape->paintbox);
383 }
384 item->render_opacity = FALSE;
385 }
386 if ( (shape->_fill.paint.type() != NRArenaShape::Paint::NONE &&
387 shape->_stroke.paint.type() != NRArenaShape::Paint::NONE)
388 || (shape->markers)
389 )
390 {
391 // don't merge item opacity with paint opacity if there is a stroke on the fill, or markers on stroke
392 item->render_opacity = FALSE;
393 }
395 if (beststate & NR_ARENA_ITEM_STATE_BBOX) {
396 for (NRArenaItem *child = shape->markers; child != NULL; child = child->next) {
397 nr_rect_l_union(&item->bbox, &item->bbox, &child->bbox);
398 }
399 }
401 return NR_ARENA_ITEM_STATE_ALL;
402 }
404 int matrix_is_isometry(NR::Matrix p) {
405 NR::Matrix tp;
406 // transposition
407 tp[0]=p[0];
408 tp[1]=p[2];
409 tp[2]=p[1];
410 tp[3]=p[3];
411 for (int i = 4; i < 6; i++) // shut valgrind up :)
412 tp[i] = p[i] = 0;
413 NR::Matrix isom = tp*p; // A^T * A = adjunct?
414 // Is the adjunct nearly an identity function?
415 if (isom.is_translation(0.01)) {
416 // the transformation is an isometry -> no need to recompute
417 // the uncrossed polygon
418 if ( p.det() < 0 )
419 return -1;
420 else
421 return 1;
422 }
423 return 0;
424 }
426 static bool is_inner_area(NRRectL const &outer, NRRectL const &inner) {
427 return (outer.x0 <= inner.x0 && outer.y0 <= inner.y0 && outer.x1 >= inner.x1 && outer.y1 >= inner.y1);
428 }
430 /** force_shape is used for clipping paths, when we need the shape for clipping even if it's not filled */
431 void
432 nr_arena_shape_update_fill(NRArenaShape *shape, NRGC *gc, NRRectL *area, bool force_shape)
433 {
434 if ((shape->_fill.paint.type() != NRArenaShape::Paint::NONE || force_shape) &&
435 ((shape->curve->end > 2) || (SP_CURVE_BPATH(shape->curve)[1].code == NR_CURVETO)) ) {
436 if (TRUE || !shape->fill_shp) {
437 NR::Matrix cached_to_new = NR::identity();
438 int isometry = 0;
439 if ( shape->cached_fill ) {
440 if (shape->cached_fctm == gc->transform) {
441 isometry = 2; // identity
442 } else {
443 cached_to_new = shape->cached_fctm.inverse() * gc->transform;
444 isometry = matrix_is_isometry(cached_to_new);
445 }
446 if (0 != isometry && !is_inner_area(shape->cached_farea, *area))
447 isometry = 0;
448 }
449 if ( isometry == 0 ) {
450 if ( shape->cached_fill == NULL ) shape->cached_fill=new Shape;
451 shape->cached_fill->Reset();
453 Path* thePath=new Path;
454 Shape* theShape=new Shape;
455 {
456 NR::Matrix tempMat(gc->transform);
457 thePath->LoadArtBPath(SP_CURVE_BPATH(shape->curve),tempMat,true);
458 }
460 if (is_inner_area(*area, NR_ARENA_ITEM(shape)->bbox)) {
461 thePath->Convert(1.0);
462 shape->cached_fpartialy = false;
463 } else {
464 thePath->Convert(area, 1.0);
465 shape->cached_fpartialy = true;
466 }
468 thePath->Fill(theShape, 0);
470 if ( shape->_fill.rule == NRArenaShape::EVEN_ODD ) {
471 shape->cached_fill->ConvertToShape(theShape, fill_oddEven);
472 // alternatively, this speeds up rendering of oddeven shapes but disables AA :(
473 //shape->cached_fill->Copy(theShape);
474 } else {
475 shape->cached_fill->ConvertToShape(theShape, fill_nonZero);
476 }
477 shape->cached_fctm=gc->transform;
478 shape->cached_farea = *area;
479 delete theShape;
480 delete thePath;
481 if ( shape->fill_shp == NULL )
482 shape->fill_shp = new Shape;
484 shape->fill_shp->Copy(shape->cached_fill);
486 } else if ( 2 == isometry ) {
487 if ( shape->fill_shp == NULL ) {
488 shape->fill_shp = new Shape;
489 shape->fill_shp->Copy(shape->cached_fill);
490 }
491 } else {
493 if ( shape->fill_shp == NULL )
494 shape->fill_shp = new Shape;
496 shape->fill_shp->Reset(shape->cached_fill->numberOfPoints(),
497 shape->cached_fill->numberOfEdges());
498 for (int i = 0; i < shape->cached_fill->numberOfPoints(); i++)
499 shape->fill_shp->AddPoint(shape->cached_fill->getPoint(i).x * cached_to_new);
500 if ( isometry == 1 ) {
501 for (int i = 0; i < shape->cached_fill->numberOfEdges(); i++)
502 shape->fill_shp->AddEdge(shape->cached_fill->getEdge(i).st,
503 shape->cached_fill->getEdge(i).en);
504 } else if ( isometry == -1 ) { // need to flip poly.
505 for (int i = 0; i < shape->cached_fill->numberOfEdges(); i++)
506 shape->fill_shp->AddEdge(shape->cached_fill->getEdge(i).en,
507 shape->cached_fill->getEdge(i).st);
508 }
509 shape->fill_shp->ForceToPolygon();
510 shape->fill_shp->needPointsSorting();
511 shape->fill_shp->needEdgesSorting();
512 }
513 shape->delayed_shp |= shape->cached_fpartialy;
514 }
515 }
516 }
518 void
519 nr_arena_shape_update_stroke(NRArenaShape *shape,NRGC* gc, NRRectL *area)
520 {
521 SPStyle* style = shape->style;
523 float const scale = NR_MATRIX_DF_EXPANSION(&gc->transform);
525 bool outline = (NR_ARENA_ITEM(shape)->arena->rendermode == RENDERMODE_OUTLINE);
527 if (outline) {
528 // cairo does not need the livarot path for rendering
529 return;
530 }
532 // after switching normal stroke rendering to cairo too, optimize this: lower tolerance, disregard dashes
533 // (since it will only be used for picking, not for rendering)
535 if (outline ||
536 ((shape->_stroke.paint.type() != NRArenaShape::Paint::NONE) &&
537 ( fabs(shape->_stroke.width * scale) > 0.01 ))) { // sinon c'est 0=oon veut pas de bord
539 float style_width = MAX(0.125, shape->_stroke.width * scale);
540 float width;
541 if (outline) {
542 width = 0.5; // 1 pixel wide, independent of zoom
543 } else {
544 width = style_width;
545 }
547 NR::Matrix cached_to_new = NR::identity();
549 int isometry = 0;
550 if ( shape->cached_stroke ) {
551 if (shape->cached_sctm == gc->transform) {
552 isometry = 2; // identity
553 } else {
554 cached_to_new = shape->cached_sctm.inverse() * gc->transform;
555 isometry = matrix_is_isometry(cached_to_new);
556 }
557 if (0 != isometry && !is_inner_area(shape->cached_sarea, *area))
558 isometry = 0;
559 if (0 != isometry && width != shape->cached_width) {
560 // if this happens without setting style, we have just switched to outline or back
561 isometry = 0;
562 }
563 }
565 if ( isometry == 0 ) {
566 if ( shape->cached_stroke == NULL ) shape->cached_stroke=new Shape;
567 shape->cached_stroke->Reset();
568 Path* thePath = new Path;
569 Shape* theShape = new Shape;
570 {
571 NR::Matrix tempMat(gc->transform);
572 thePath->LoadArtBPath(SP_CURVE_BPATH(shape->curve), tempMat, true);
573 }
575 // add some padding to the rendering area, so clipped path does not go into a render area
576 NRRectL padded_area = *area;
577 padded_area.x0 -= (NR::ICoord)width;
578 padded_area.x1 += (NR::ICoord)width;
579 padded_area.y0 -= (NR::ICoord)width;
580 padded_area.y1 += (NR::ICoord)width;
581 if ((style->stroke_dash.n_dash && !outline) || is_inner_area(padded_area, NR_ARENA_ITEM(shape)->bbox)) {
582 thePath->Convert((outline) ? 4.0 : 1.0);
583 shape->cached_spartialy = false;
584 }
585 else {
586 thePath->Convert(&padded_area, (outline) ? 4.0 : 1.0);
587 shape->cached_spartialy = true;
588 }
590 if (style->stroke_dash.n_dash && !outline) {
591 thePath->DashPolylineFromStyle(style, scale, 1.0);
592 }
594 ButtType butt=butt_straight;
595 switch (shape->_stroke.cap) {
596 case NRArenaShape::BUTT_CAP:
597 butt = butt_straight;
598 break;
599 case NRArenaShape::ROUND_CAP:
600 butt = butt_round;
601 break;
602 case NRArenaShape::SQUARE_CAP:
603 butt = butt_square;
604 break;
605 }
606 JoinType join=join_straight;
607 switch (shape->_stroke.join) {
608 case NRArenaShape::MITRE_JOIN:
609 join = join_pointy;
610 break;
611 case NRArenaShape::ROUND_JOIN:
612 join = join_round;
613 break;
614 case NRArenaShape::BEVEL_JOIN:
615 join = join_straight;
616 break;
617 }
619 if (outline) {
620 butt = butt_straight;
621 join = join_straight;
622 }
624 thePath->Stroke(theShape, false, 0.5*width, join, butt,
625 0.5*width*shape->_stroke.mitre_limit);
628 if (outline) {
629 // speeds it up, but uses evenodd for the stroke shape (which does not matter for 1-pixel wide outline)
630 shape->cached_stroke->Copy(theShape);
631 } else {
632 shape->cached_stroke->ConvertToShape(theShape, fill_nonZero);
633 }
635 shape->cached_width = width;
637 shape->cached_sctm=gc->transform;
638 shape->cached_sarea = *area;
639 delete thePath;
640 delete theShape;
641 if ( shape->stroke_shp == NULL ) shape->stroke_shp=new Shape;
643 shape->stroke_shp->Copy(shape->cached_stroke);
645 } else if ( 2 == isometry ) {
646 if ( shape->stroke_shp == NULL ) {
647 shape->stroke_shp=new Shape;
648 shape->stroke_shp->Copy(shape->cached_stroke);
649 }
650 } else {
651 if ( shape->stroke_shp == NULL )
652 shape->stroke_shp=new Shape;
653 shape->stroke_shp->Reset(shape->cached_stroke->numberOfPoints(), shape->cached_stroke->numberOfEdges());
654 for (int i = 0; i < shape->cached_stroke->numberOfPoints(); i++)
655 shape->stroke_shp->AddPoint(shape->cached_stroke->getPoint(i).x * cached_to_new);
656 if ( isometry == 1 ) {
657 for (int i = 0; i < shape->cached_stroke->numberOfEdges(); i++)
658 shape->stroke_shp->AddEdge(shape->cached_stroke->getEdge(i).st,
659 shape->cached_stroke->getEdge(i).en);
660 } else if ( isometry == -1 ) {
661 for (int i = 0; i < shape->cached_stroke->numberOfEdges(); i++)
662 shape->stroke_shp->AddEdge(shape->cached_stroke->getEdge(i).en,
663 shape->cached_stroke->getEdge(i).st);
664 }
665 shape->stroke_shp->ForceToPolygon();
666 shape->stroke_shp->needPointsSorting();
667 shape->stroke_shp->needEdgesSorting();
668 }
669 shape->delayed_shp |= shape->cached_spartialy;
670 }
671 }
674 void
675 nr_arena_shape_add_bboxes(NRArenaShape* shape, NRRect &bbox)
676 {
677 if ( shape->stroke_shp ) {
678 shape->stroke_shp->CalcBBox();
679 shape->stroke_shp->leftX=floor(shape->stroke_shp->leftX);
680 shape->stroke_shp->rightX=ceil(shape->stroke_shp->rightX);
681 shape->stroke_shp->topY=floor(shape->stroke_shp->topY);
682 shape->stroke_shp->bottomY=ceil(shape->stroke_shp->bottomY);
683 if ( bbox.x0 >= bbox.x1 ) {
684 if ( shape->stroke_shp->leftX < shape->stroke_shp->rightX ) {
685 bbox.x0=shape->stroke_shp->leftX;
686 bbox.x1=shape->stroke_shp->rightX;
687 }
688 } else {
689 if ( shape->stroke_shp->leftX < bbox.x0 )
690 bbox.x0=shape->stroke_shp->leftX;
691 if ( shape->stroke_shp->rightX > bbox.x1 )
692 bbox.x1=shape->stroke_shp->rightX;
693 }
694 if ( bbox.y0 >= bbox.y1 ) {
695 if ( shape->stroke_shp->topY < shape->stroke_shp->bottomY ) {
696 bbox.y0=shape->stroke_shp->topY;
697 bbox.y1=shape->stroke_shp->bottomY;
698 }
699 } else {
700 if ( shape->stroke_shp->topY < bbox.y0 )
701 bbox.y0=shape->stroke_shp->topY;
702 if ( shape->stroke_shp->bottomY > bbox.y1 )
703 bbox.y1=shape->stroke_shp->bottomY;
704 }
705 }
706 if ( shape->fill_shp ) {
707 shape->fill_shp->CalcBBox();
708 shape->fill_shp->leftX=floor(shape->fill_shp->leftX);
709 shape->fill_shp->rightX=ceil(shape->fill_shp->rightX);
710 shape->fill_shp->topY=floor(shape->fill_shp->topY);
711 shape->fill_shp->bottomY=ceil(shape->fill_shp->bottomY);
712 if ( bbox.x0 >= bbox.x1 ) {
713 if ( shape->fill_shp->leftX < shape->fill_shp->rightX ) {
714 bbox.x0=shape->fill_shp->leftX;
715 bbox.x1=shape->fill_shp->rightX;
716 }
717 } else {
718 if ( shape->fill_shp->leftX < bbox.x0 ) bbox.x0=shape->fill_shp->leftX;
719 if ( shape->fill_shp->rightX > bbox.x1 ) bbox.x1=shape->fill_shp->rightX;
720 }
721 if ( bbox.y0 >= bbox.y1 ) {
722 if ( shape->fill_shp->topY < shape->fill_shp->bottomY ) {
723 bbox.y0=shape->fill_shp->topY;
724 bbox.y1=shape->fill_shp->bottomY;
725 }
726 } else {
727 if ( shape->fill_shp->topY < bbox.y0 ) bbox.y0=shape->fill_shp->topY;
728 if ( shape->fill_shp->bottomY > bbox.y1 ) bbox.y1=shape->fill_shp->bottomY;
729 }
730 }
731 }
733 // cairo outline rendering:
734 static unsigned int
735 cairo_arena_shape_render_outline(cairo_t *ct, NRArenaItem *item, NR::Maybe<NR::Rect> area)
736 {
737 NRArenaShape *shape = NR_ARENA_SHAPE(item);
739 if (!ct)
740 return item->state;
742 guint32 rgba = NR_ARENA_ITEM(shape)->arena->outlinecolor;
743 // FIXME: we use RGBA buffers but cairo writes BGRA (on i386), so we must cheat
744 // by setting color channels in the "wrong" order
745 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));
747 cairo_set_line_width(ct, 0.5);
748 cairo_set_tolerance(ct, 1.25); // low quality, but good enough for outline mode
749 cairo_new_path(ct);
751 feed_curve_to_cairo (ct, SP_CURVE_BPATH(shape->curve), NR::Matrix(shape->ctm), area, true, 0);
753 cairo_stroke(ct);
755 return item->state;
756 }
758 // cairo stroke rendering (flat color only so far!):
759 // works on canvas, but wrongs the colors in nonpremul buffers: icons and png export
760 // (need to switch them to premul before this can be enabled)
761 void
762 cairo_arena_shape_render_stroke(NRArenaItem *item, NRRectL *area, NRPixBlock *pb)
763 {
764 NRArenaShape *shape = NR_ARENA_SHAPE(item);
765 SPStyle const *style = shape->style;
767 float const scale = NR_MATRIX_DF_EXPANSION(shape->ctm);
769 if (fabs(shape->_stroke.width * scale) < 0.01)
770 return;
772 cairo_t *ct = nr_create_cairo_context (area, pb);
774 if (!ct)
775 return;
777 guint32 rgba;
778 if ( item->render_opacity ) {
779 rgba = sp_color_get_rgba32_falpha(&shape->_stroke.paint.color(),
780 shape->_stroke.opacity *
781 SP_SCALE24_TO_FLOAT(style->opacity.value));
782 } else {
783 rgba = sp_color_get_rgba32_falpha(&shape->_stroke.paint.color(),
784 shape->_stroke.opacity);
785 }
787 // FIXME: we use RGBA buffers but cairo writes BGRA (on i386), so we must cheat
788 // by setting color channels in the "wrong" order
789 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));
791 float style_width = MAX(0.125, shape->_stroke.width * scale);
792 cairo_set_line_width(ct, style_width);
794 switch (shape->_stroke.cap) {
795 case NRArenaShape::BUTT_CAP:
796 cairo_set_line_cap(ct, CAIRO_LINE_CAP_BUTT);
797 break;
798 case NRArenaShape::ROUND_CAP:
799 cairo_set_line_cap(ct, CAIRO_LINE_CAP_ROUND);
800 break;
801 case NRArenaShape::SQUARE_CAP:
802 cairo_set_line_cap(ct, CAIRO_LINE_CAP_SQUARE);
803 break;
804 }
805 switch (shape->_stroke.join) {
806 case NRArenaShape::MITRE_JOIN:
807 cairo_set_line_join(ct, CAIRO_LINE_JOIN_MITER);
808 break;
809 case NRArenaShape::ROUND_JOIN:
810 cairo_set_line_join(ct, CAIRO_LINE_JOIN_ROUND);
811 break;
812 case NRArenaShape::BEVEL_JOIN:
813 cairo_set_line_join(ct, CAIRO_LINE_JOIN_BEVEL);
814 break;
815 }
817 cairo_set_miter_limit (ct, style->stroke_miterlimit.value);
819 if (style->stroke_dash.n_dash) {
820 NRVpathDash dash;
821 dash.offset = style->stroke_dash.offset * scale;
822 dash.n_dash = style->stroke_dash.n_dash;
823 dash.dash = g_new(double, dash.n_dash);
824 for (int i = 0; i < dash.n_dash; i++) {
825 dash.dash[i] = style->stroke_dash.dash[i] * scale;
826 }
827 cairo_set_dash (ct, dash.dash, dash.n_dash, dash.offset);
828 g_free(dash.dash);
829 }
831 cairo_set_tolerance(ct, 0.1);
832 cairo_new_path(ct);
834 feed_curve_to_cairo (ct, SP_CURVE_BPATH(shape->curve), NR::Matrix(shape->ctm), area->upgrade(), true, style_width);
836 cairo_stroke(ct);
838 cairo_surface_t *cst = cairo_get_target(ct);
839 cairo_destroy (ct);
840 cairo_surface_finish (cst);
841 cairo_surface_destroy (cst);
843 pb->empty = FALSE;
844 }
847 /**
848 * Renders the item. Markers are just composed into the parent buffer.
849 */
850 static unsigned int
851 nr_arena_shape_render(cairo_t *ct, NRArenaItem *item, NRRectL *area, NRPixBlock *pb, unsigned int flags)
852 {
853 NRArenaShape *shape = NR_ARENA_SHAPE(item);
855 if (!shape->curve) return item->state;
856 if (!shape->style) return item->state;
858 bool outline = (NR_ARENA_ITEM(shape)->arena->rendermode == RENDERMODE_OUTLINE);
860 if (outline) { // cairo outline rendering
862 pb->empty = FALSE;
863 unsigned int ret = cairo_arena_shape_render_outline (ct, item, (&pb->area)->upgrade());
864 if (ret & NR_ARENA_ITEM_STATE_INVALID) return ret;
866 } else {
868 if ( shape->delayed_shp ) {
869 if ( nr_rect_l_test_intersect(area, &item->bbox) ) {
870 NRGC tempGC(NULL);
871 tempGC.transform=shape->ctm;
872 shape->delayed_shp = false;
873 nr_arena_shape_update_stroke(shape,&tempGC,&pb->visible_area);
874 nr_arena_shape_update_fill(shape,&tempGC,&pb->visible_area);
875 /* NRRect bbox;
876 bbox.x0 = bbox.y0 = bbox.x1 = bbox.y1 = 0.0;
877 nr_arena_shape_add_bboxes(shape,bbox);
878 item->bbox.x0 = (gint32)(bbox.x0 - 1.0F);
879 item->bbox.y0 = (gint32)(bbox.y0 - 1.0F);
880 item->bbox.x1 = (gint32)(bbox.x1 + 1.0F);
881 item->bbox.y1 = (gint32)(bbox.y1 + 1.0F);
882 shape->approx_bbox=item->bbox;*/
883 } else {
884 return item->state;
885 }
886 }
888 SPStyle const *style = shape->style;
889 if (shape->fill_shp) {
890 NRPixBlock m;
891 guint32 rgba;
893 nr_pixblock_setup_fast(&m, NR_PIXBLOCK_MODE_A8, area->x0, area->y0, area->x1, area->y1, TRUE);
895 // if memory allocation failed, abort render
896 if (m.size != NR_PIXBLOCK_SIZE_TINY && m.data.px == NULL) {
897 nr_pixblock_release (&m);
898 return (item->state);
899 }
901 m.visible_area = pb->visible_area;
902 nr_pixblock_render_shape_mask_or(m,shape->fill_shp);
903 m.empty = FALSE;
905 if (shape->_fill.paint.type() == NRArenaShape::Paint::NONE) {
906 // do not render fill in any way
907 } else if (shape->_fill.paint.type() == NRArenaShape::Paint::COLOR) {
908 if ( item->render_opacity ) {
909 rgba = sp_color_get_rgba32_falpha(&shape->_fill.paint.color(),
910 shape->_fill.opacity *
911 SP_SCALE24_TO_FLOAT(style->opacity.value));
912 } else {
913 rgba = sp_color_get_rgba32_falpha(&shape->_fill.paint.color(),
914 shape->_fill.opacity);
915 }
916 nr_blit_pixblock_mask_rgba32(pb, &m, rgba);
917 pb->empty = FALSE;
918 } else if (shape->_fill.paint.type() == NRArenaShape::Paint::SERVER) {
919 if (shape->fill_painter) {
920 nr_arena_render_paintserver_fill(pb, area, shape->fill_painter, shape->_fill.opacity, &m);
921 }
922 }
924 nr_pixblock_release(&m);
925 }
927 if (shape->stroke_shp && shape->_stroke.paint.type() == NRArenaShape::Paint::COLOR) {
929 // cairo_arena_shape_render_stroke(item, area, pb);
931 guint32 rgba;
932 NRPixBlock m;
934 nr_pixblock_setup_fast(&m, NR_PIXBLOCK_MODE_A8, area->x0, area->y0, area->x1, area->y1, TRUE);
936 // if memory allocation failed, abort render
937 if (m.size != NR_PIXBLOCK_SIZE_TINY && m.data.px == NULL) {
938 nr_pixblock_release (&m);
939 return (item->state);
940 }
942 m.visible_area = pb->visible_area;
943 nr_pixblock_render_shape_mask_or(m, shape->stroke_shp);
944 m.empty = FALSE;
946 if ( item->render_opacity ) {
947 rgba = sp_color_get_rgba32_falpha(&shape->_stroke.paint.color(),
948 shape->_stroke.opacity *
949 SP_SCALE24_TO_FLOAT(style->opacity.value));
950 } else {
951 rgba = sp_color_get_rgba32_falpha(&shape->_stroke.paint.color(),
952 shape->_stroke.opacity);
953 }
954 nr_blit_pixblock_mask_rgba32(pb, &m, rgba);
955 pb->empty = FALSE;
957 nr_pixblock_release(&m);
959 } else if (shape->stroke_shp && shape->_stroke.paint.type() == NRArenaShape::Paint::SERVER) {
961 NRPixBlock m;
963 nr_pixblock_setup_fast(&m, NR_PIXBLOCK_MODE_A8, area->x0, area->y0, area->x1, area->y1, TRUE);
965 // if memory allocation failed, abort render
966 if (m.size != NR_PIXBLOCK_SIZE_TINY && m.data.px == NULL) {
967 nr_pixblock_release (&m);
968 return (item->state);
969 }
971 m.visible_area = pb->visible_area;
972 nr_pixblock_render_shape_mask_or(m, shape->stroke_shp);
973 m.empty = FALSE;
975 if (shape->stroke_painter) {
976 nr_arena_render_paintserver_fill(pb, area, shape->stroke_painter, shape->_stroke.opacity, &m);
977 }
979 nr_pixblock_release(&m);
980 }
982 } // non-cairo non-outline branch
984 /* Render markers into parent buffer */
985 for (NRArenaItem *child = shape->markers; child != NULL; child = child->next) {
986 unsigned int ret = nr_arena_item_invoke_render(ct, child, area, pb, flags);
987 if (ret & NR_ARENA_ITEM_STATE_INVALID) return ret;
988 }
990 return item->state;
991 }
994 // cairo clipping: this basically works except for the stride-must-be-divisible-by-4 cairo bug;
995 // reenable this when the bug is fixed and remove the rest of this function
996 static guint
997 cairo_arena_shape_clip(NRArenaItem *item, NRRectL *area, NRPixBlock *pb)
998 {
999 NRArenaShape *shape = NR_ARENA_SHAPE(item);
1000 if (!shape->curve) return item->state;
1002 cairo_t *ct = nr_create_cairo_context (area, pb);
1004 if (!ct)
1005 return item->state;
1007 cairo_set_source_rgba(ct, 0, 0, 0, 1);
1009 cairo_new_path(ct);
1011 feed_curve_to_cairo (ct, SP_CURVE_BPATH(shape->curve), NR::Matrix(shape->ctm), (area)->upgrade(), false, 0);
1013 cairo_fill(ct);
1015 cairo_surface_t *cst = cairo_get_target(ct);
1016 cairo_destroy (ct);
1017 cairo_surface_finish (cst);
1018 cairo_surface_destroy (cst);
1020 pb->empty = FALSE;
1022 return item->state;
1023 }
1026 static guint
1027 nr_arena_shape_clip(NRArenaItem *item, NRRectL *area, NRPixBlock *pb)
1028 {
1029 //return cairo_arena_shape_clip(item, area, pb);
1031 NRArenaShape *shape = NR_ARENA_SHAPE(item);
1032 if (!shape->curve) return item->state;
1034 if ( shape->delayed_shp || shape->fill_shp == NULL) { // we need a fill shape no matter what
1035 if ( nr_rect_l_test_intersect(area, &item->bbox) ) {
1036 NRGC tempGC(NULL);
1037 tempGC.transform=shape->ctm;
1038 shape->delayed_shp = false;
1039 nr_arena_shape_update_fill(shape, &tempGC, &pb->visible_area, true);
1040 } else {
1041 return item->state;
1042 }
1043 }
1045 if ( shape->fill_shp ) {
1046 NRPixBlock m;
1048 /* fixme: We can OR in one step (Lauris) */
1049 nr_pixblock_setup_fast(&m, NR_PIXBLOCK_MODE_A8, area->x0, area->y0, area->x1, area->y1, TRUE);
1051 // if memory allocation failed, abort
1052 if (m.size != NR_PIXBLOCK_SIZE_TINY && m.data.px == NULL) {
1053 nr_pixblock_release (&m);
1054 return (item->state);
1055 }
1057 m.visible_area = pb->visible_area;
1058 nr_pixblock_render_shape_mask_or(m,shape->fill_shp);
1060 for (int y = area->y0; y < area->y1; y++) {
1061 unsigned char *s, *d;
1062 s = NR_PIXBLOCK_PX(&m) + (y - area->y0) * m.rs;
1063 d = NR_PIXBLOCK_PX(pb) + (y - area->y0) * pb->rs;
1064 for (int x = area->x0; x < area->x1; x++) {
1065 *d = NR_COMPOSEA_111(*s, *d);
1066 d ++;
1067 s ++;
1068 }
1069 }
1070 nr_pixblock_release(&m);
1071 pb->empty = FALSE;
1072 }
1074 return item->state;
1075 }
1077 static NRArenaItem *
1078 nr_arena_shape_pick(NRArenaItem *item, NR::Point p, double delta, unsigned int /*sticky*/)
1079 {
1080 NRArenaShape *shape = NR_ARENA_SHAPE(item);
1082 if (shape->repick_after > 0)
1083 shape->repick_after--;
1085 if (shape->repick_after > 0) // we are a slow, huge path. skip this pick, returning what was returned last time
1086 return shape->last_pick;
1088 if (!shape->curve) return NULL;
1089 if (!shape->style) return NULL;
1091 GTimeVal tstart, tfinish;
1092 g_get_current_time (&tstart);
1094 bool outline = (NR_ARENA_ITEM(shape)->arena->rendermode == RENDERMODE_OUTLINE);
1096 float const scale = NR_MATRIX_DF_EXPANSION(&shape->ctm);
1097 double width;
1098 if (outline) {
1099 width = 0.5;
1100 } else {
1101 width = MAX(0.125, shape->_stroke.width * scale) / 2;
1102 }
1104 NRBPath bp;
1105 bp.path = SP_CURVE_BPATH(shape->curve);
1106 double dist = NR_HUGE;
1107 int wind = 0;
1108 bool needfill = (shape->_fill.paint.type() != NRArenaShape::Paint::NONE && !outline);
1110 if (item->arena->canvasarena) {
1111 NR::Rect viewbox = item->arena->canvasarena->item.canvas->getViewbox();
1112 viewbox.growBy (width);
1113 nr_path_matrix_point_bbox_wind_distance(&bp, shape->ctm, p, NULL, needfill? &wind : NULL, &dist, 0.5, &viewbox);
1114 } else {
1115 nr_path_matrix_point_bbox_wind_distance(&bp, shape->ctm, p, NULL, needfill? &wind : NULL, &dist, 0.5, NULL);
1116 }
1118 g_get_current_time (&tfinish);
1119 glong this_pick = (tfinish.tv_sec - tstart.tv_sec) * 1000000 + (tfinish.tv_usec - tstart.tv_usec);
1120 //g_print ("pick time %lu\n", this_pick);
1122 if (this_pick > 10000) { // slow picking, remember to skip several new picks
1123 shape->repick_after = this_pick / 5000;
1124 }
1126 // pick fill
1127 if (needfill) {
1128 if (!shape->style->fill_rule.computed) {
1129 if (wind != 0) {
1130 shape->last_pick = item;
1131 return item;
1132 }
1133 } else {
1134 if (wind & 0x1) {
1135 shape->last_pick = item;
1136 return item;
1137 }
1138 }
1139 }
1141 // pick stroke
1142 if (shape->_stroke.paint.type() != NRArenaShape::Paint::NONE || outline) {
1143 // this ignores dashing (as if the stroke is solid) and always works as if caps are round
1144 if ((dist - width) < delta) {
1145 shape->last_pick = item;
1146 return item;
1147 }
1148 }
1150 // if not picked on the shape itself, try its markers
1151 for (NRArenaItem *child = shape->markers; child != NULL; child = child->next) {
1152 NRArenaItem *ret = nr_arena_item_invoke_pick(child, p, delta, 0);
1153 if (ret) {
1154 shape->last_pick = item;
1155 return item;
1156 }
1157 }
1159 shape->last_pick = NULL;
1160 return NULL;
1161 }
1163 /**
1164 *
1165 * Requests a render of the shape, then if the shape is already a curve it
1166 * unrefs the old curve; if the new curve is valid it creates a copy of the
1167 * curve and adds it to the shape. Finally, it requests an update of the
1168 * arena for the shape.
1169 */
1170 void nr_arena_shape_set_path(NRArenaShape *shape, SPCurve *curve,bool justTrans)
1171 {
1172 g_return_if_fail(shape != NULL);
1173 g_return_if_fail(NR_IS_ARENA_SHAPE(shape));
1175 if ( justTrans == false ) {
1176 // dirty cached versions
1177 if ( shape->cached_fill ) {
1178 delete shape->cached_fill;
1179 shape->cached_fill=NULL;
1180 }
1181 if ( shape->cached_stroke ) {
1182 delete shape->cached_stroke;
1183 shape->cached_stroke=NULL;
1184 }
1185 }
1187 nr_arena_item_request_render(NR_ARENA_ITEM(shape));
1189 if (shape->curve) {
1190 sp_curve_unref(shape->curve);
1191 shape->curve = NULL;
1192 }
1194 if (curve) {
1195 shape->curve = curve;
1196 sp_curve_ref(curve);
1197 }
1199 nr_arena_item_request_update(NR_ARENA_ITEM(shape), NR_ARENA_ITEM_STATE_ALL, FALSE);
1200 }
1202 void NRArenaShape::setFill(SPPaintServer *server) {
1203 _fill.paint.set(server);
1204 _invalidateCachedFill();
1205 }
1207 void NRArenaShape::setFill(SPColor const &color) {
1208 _fill.paint.set(color);
1209 _invalidateCachedFill();
1210 }
1212 void NRArenaShape::setFillOpacity(double opacity) {
1213 _fill.opacity = opacity;
1214 _invalidateCachedFill();
1215 }
1217 void NRArenaShape::setFillRule(NRArenaShape::FillRule rule) {
1218 _fill.rule = rule;
1219 _invalidateCachedFill();
1220 }
1222 void NRArenaShape::setStroke(SPPaintServer *server) {
1223 _stroke.paint.set(server);
1224 _invalidateCachedStroke();
1225 }
1227 void NRArenaShape::setStroke(SPColor const &color) {
1228 _stroke.paint.set(color);
1229 _invalidateCachedStroke();
1230 }
1232 void NRArenaShape::setStrokeOpacity(double opacity) {
1233 _stroke.opacity = opacity;
1234 _invalidateCachedStroke();
1235 }
1237 void NRArenaShape::setStrokeWidth(double width) {
1238 _stroke.width = width;
1239 _invalidateCachedStroke();
1240 }
1242 void NRArenaShape::setMitreLimit(double limit) {
1243 _stroke.mitre_limit = limit;
1244 _invalidateCachedStroke();
1245 }
1247 void NRArenaShape::setLineCap(NRArenaShape::CapType cap) {
1248 _stroke.cap = cap;
1249 _invalidateCachedStroke();
1250 }
1252 void NRArenaShape::setLineJoin(NRArenaShape::JoinType join) {
1253 _stroke.join = join;
1254 _invalidateCachedStroke();
1255 }
1257 /** nr_arena_shape_set_style
1258 *
1259 * Unrefs any existing style and ref's to the given one, then requests an update of the arena
1260 */
1261 void
1262 nr_arena_shape_set_style(NRArenaShape *shape, SPStyle *style)
1263 {
1264 g_return_if_fail(shape != NULL);
1265 g_return_if_fail(NR_IS_ARENA_SHAPE(shape));
1267 if (style) sp_style_ref(style);
1268 if (shape->style) sp_style_unref(shape->style);
1269 shape->style = style;
1271 switch (style->fill.type) {
1272 case SP_PAINT_TYPE_NONE: {
1273 shape->setFill(NULL);
1274 break;
1275 }
1276 case SP_PAINT_TYPE_COLOR: {
1277 shape->setFill(style->fill.value.color);
1278 break;
1279 }
1280 case SP_PAINT_TYPE_PAINTSERVER: {
1281 shape->setFill(style->fill.value.paint.server);
1282 break;
1283 }
1284 default: {
1285 g_assert_not_reached();
1286 }
1287 }
1288 shape->setFillOpacity(SP_SCALE24_TO_FLOAT(style->fill_opacity.value));
1289 switch (style->fill_rule.computed) {
1290 case SP_WIND_RULE_EVENODD: {
1291 shape->setFillRule(NRArenaShape::EVEN_ODD);
1292 break;
1293 }
1294 case SP_WIND_RULE_NONZERO: {
1295 shape->setFillRule(NRArenaShape::NONZERO);
1296 break;
1297 }
1298 default: {
1299 g_assert_not_reached();
1300 }
1301 }
1303 switch (style->stroke.type) {
1304 case SP_PAINT_TYPE_NONE: {
1305 shape->setStroke(NULL);
1306 break;
1307 }
1308 case SP_PAINT_TYPE_COLOR: {
1309 shape->setStroke(style->stroke.value.color);
1310 break;
1311 }
1312 case SP_PAINT_TYPE_PAINTSERVER: {
1313 shape->setStroke(style->stroke.value.paint.server);
1314 break;
1315 }
1316 default: {
1317 g_assert_not_reached();
1318 }
1319 }
1320 shape->setStrokeWidth(style->stroke_width.computed);
1321 shape->setStrokeOpacity(SP_SCALE24_TO_FLOAT(style->stroke_opacity.value));
1322 switch (style->stroke_linecap.computed) {
1323 case SP_STROKE_LINECAP_ROUND: {
1324 shape->setLineCap(NRArenaShape::ROUND_CAP);
1325 break;
1326 }
1327 case SP_STROKE_LINECAP_SQUARE: {
1328 shape->setLineCap(NRArenaShape::SQUARE_CAP);
1329 break;
1330 }
1331 case SP_STROKE_LINECAP_BUTT: {
1332 shape->setLineCap(NRArenaShape::BUTT_CAP);
1333 break;
1334 }
1335 default: {
1336 g_assert_not_reached();
1337 }
1338 }
1339 switch (style->stroke_linejoin.computed) {
1340 case SP_STROKE_LINEJOIN_ROUND: {
1341 shape->setLineJoin(NRArenaShape::ROUND_JOIN);
1342 break;
1343 }
1344 case SP_STROKE_LINEJOIN_BEVEL: {
1345 shape->setLineJoin(NRArenaShape::BEVEL_JOIN);
1346 break;
1347 }
1348 case SP_STROKE_LINEJOIN_MITER: {
1349 shape->setLineJoin(NRArenaShape::MITRE_JOIN);
1350 break;
1351 }
1352 default: {
1353 g_assert_not_reached();
1354 }
1355 }
1356 shape->setMitreLimit(style->stroke_miterlimit.value);
1358 //if shape has a filter
1359 if (style->filter.set && style->filter.filter)
1360 {
1361 shape->filter = new NR::Filter();
1362 shape->filter->set_x(style->filter.filter->x);
1363 shape->filter->set_y(style->filter.filter->y);
1364 shape->filter->set_width(style->filter.filter->width);
1365 shape->filter->set_height(style->filter.filter->height);
1367 //go through all SP filter primitives
1368 for(int i=0; i<style->filter.filter->_primitive_count; i++)
1369 {
1370 SPFilterPrimitive *primitive = style->filter.filter->_primitives[i];
1371 //if primitive is gaussianblur
1372 if(SP_IS_GAUSSIANBLUR(primitive)) {
1373 NR::FilterGaussian * gaussian = (NR::FilterGaussian *) shape->filter->add_primitive(NR::NR_FILTER_GAUSSIANBLUR);
1374 SPGaussianBlur * spblur = SP_GAUSSIANBLUR(primitive);
1375 float num = spblur->stdDeviation.getNumber();
1376 if( num>=0.0 )
1377 {
1378 float optnum = spblur->stdDeviation.getOptNumber();
1379 if( optnum>=0.0 )
1380 gaussian->set_deviation((double) num, (double) optnum);
1381 else
1382 gaussian->set_deviation((double) num);
1383 }
1384 }
1385 }
1386 }
1387 else
1388 {
1389 //no filter set for this shape
1390 shape->filter = NULL;
1391 }
1393 nr_arena_item_request_update(shape, NR_ARENA_ITEM_STATE_ALL, FALSE);
1394 }
1396 void
1397 nr_arena_shape_set_paintbox(NRArenaShape *shape, NRRect const *pbox)
1398 {
1399 g_return_if_fail(shape != NULL);
1400 g_return_if_fail(NR_IS_ARENA_SHAPE(shape));
1401 g_return_if_fail(pbox != NULL);
1403 if ((pbox->x0 < pbox->x1) && (pbox->y0 < pbox->y1)) {
1404 shape->paintbox = *pbox;
1405 } else {
1406 /* fixme: We kill warning, although not sure what to do here (Lauris) */
1407 shape->paintbox.x0 = shape->paintbox.y0 = 0.0F;
1408 shape->paintbox.x1 = shape->paintbox.y1 = 256.0F;
1409 }
1411 nr_arena_item_request_update(shape, NR_ARENA_ITEM_STATE_ALL, FALSE);
1412 }
1414 void NRArenaShape::setPaintBox(NR::Rect const &pbox)
1415 {
1416 paintbox.x0 = pbox.min()[NR::X];
1417 paintbox.y0 = pbox.min()[NR::Y];
1418 paintbox.x1 = pbox.max()[NR::X];
1419 paintbox.y1 = pbox.max()[NR::Y];
1421 nr_arena_item_request_update(this, NR_ARENA_ITEM_STATE_ALL, FALSE);
1422 }
1424 static void
1425 shape_run_A8_OR(raster_info &dest,void */*data*/,int st,float vst,int en,float ven)
1426 {
1427 if ( st >= en ) return;
1428 if ( vst < 0 ) vst=0;
1429 if ( vst > 1 ) vst=1;
1430 if ( ven < 0 ) ven=0;
1431 if ( ven > 1 ) ven=1;
1432 float sv=vst;
1433 float dv=ven-vst;
1434 int len=en-st;
1435 unsigned char* d=(unsigned char*)dest.buffer;
1436 d+=(st-dest.startPix);
1437 if ( fabs(dv) < 0.001 ) {
1438 if ( vst > 0.999 ) {
1439 /* Simple copy */
1440 while (len > 0) {
1441 d[0] = 255;
1442 d += 1;
1443 len -= 1;
1444 }
1445 } else {
1446 sv*=256;
1447 unsigned int c0_24=(int)sv;
1448 c0_24&=0xFF;
1449 while (len > 0) {
1450 /* Draw */
1451 d[0] = NR_COMPOSEA_111(c0_24,d[0]);
1452 d += 1;
1453 len -= 1;
1454 }
1455 }
1456 } else {
1457 if ( en <= st+1 ) {
1458 sv=0.5*(vst+ven);
1459 sv*=256;
1460 unsigned int c0_24=(int)sv;
1461 c0_24&=0xFF;
1462 /* Draw */
1463 d[0] = NR_COMPOSEA_111(c0_24,d[0]);
1464 } else {
1465 dv/=len;
1466 sv+=0.5*dv; // correction trapezoidale
1467 sv*=16777216;
1468 dv*=16777216;
1469 int c0_24 = static_cast<int>(CLAMP(sv, 0, 16777216));
1470 int s0_24 = static_cast<int>(dv);
1471 while (len > 0) {
1472 unsigned int ca;
1473 /* Draw */
1474 ca = c0_24 >> 16;
1475 if ( ca > 255 ) ca=255;
1476 d[0] = NR_COMPOSEA_111(ca,d[0]);
1477 d += 1;
1478 c0_24 += s0_24;
1479 c0_24 = CLAMP(c0_24, 0, 16777216);
1480 len -= 1;
1481 }
1482 }
1483 }
1484 }
1486 void nr_pixblock_render_shape_mask_or(NRPixBlock &m,Shape* theS)
1487 {
1488 theS->CalcBBox();
1489 float l = theS->leftX, r = theS->rightX, t = theS->topY, b = theS->bottomY;
1490 int il,ir,it,ib;
1491 il=(int)floor(l);
1492 ir=(int)ceil(r);
1493 it=(int)floor(t);
1494 ib=(int)ceil(b);
1496 if ( il >= m.area.x1 || ir <= m.area.x0 || it >= m.area.y1 || ib <= m.area.y0 ) return;
1497 if ( il < m.area.x0 ) il=m.area.x0;
1498 if ( it < m.area.y0 ) it=m.area.y0;
1499 if ( ir > m.area.x1 ) ir=m.area.x1;
1500 if ( ib > m.area.y1 ) ib=m.area.y1;
1502 /* This is the FloatLigne version. See svn (prior to Apr 2006) for versions using BitLigne or direct BitLigne. */
1503 int curPt;
1504 float curY;
1505 theS->BeginQuickRaster(curY, curPt);
1507 FloatLigne *theI = new FloatLigne();
1508 IntLigne *theIL = new IntLigne();
1510 theS->DirectQuickScan(curY, curPt, (float) it, true, 1.0);
1512 char *mdata = (char*)m.data.px;
1513 if ( m.size == NR_PIXBLOCK_SIZE_TINY ) mdata=(char*)m.data.p;
1514 uint32_t *ligStart = ((uint32_t*)(mdata + ((il - m.area.x0) + m.rs * (it - m.area.y0))));
1515 for (int y = it; y < ib; y++) {
1516 theI->Reset();
1517 theS->QuickScan(curY, curPt, ((float)(y+1)), theI, 1.0);
1518 theI->Flatten();
1519 theIL->Copy(theI);
1521 raster_info dest;
1522 dest.startPix=il;
1523 dest.endPix=ir;
1524 dest.sth=il;
1525 dest.stv=y;
1526 dest.buffer=ligStart;
1527 theIL->Raster(dest, NULL, shape_run_A8_OR);
1528 ligStart=((uint32_t*)(((char*)ligStart)+m.rs));
1529 }
1530 theS->EndQuickRaster();
1531 delete theI;
1532 delete theIL;
1533 }
1536 /*
1537 Local Variables:
1538 mode:c++
1539 c-file-style:"stroustrup"
1540 c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
1541 indent-tabs-mode:nil
1542 fill-column:99
1543 End:
1544 */
1545 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=99 :