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 <libnr/n-art-bpath.h>
21 #include <libnr/nr-path.h>
22 #include <libnr/nr-pixops.h>
23 #include <libnr/nr-matrix-ops.h>
24 #include <libnr/nr-matrix-fns.h>
25 #include <libnr/nr-blit.h>
26 #include <livarot/Path.h>
27 #include <livarot/float-line.h>
28 #include <livarot/int-line.h>
29 #include <style.h>
30 #include "prefs-utils.h"
31 #include "inkscape-cairo.h"
33 #include "sp-filter.h"
34 #include "display/nr-filter.h"
36 #include <cairo.h>
38 //int showRuns=0;
39 void nr_pixblock_render_shape_mask_or(NRPixBlock &m,Shape* theS);
41 static void nr_arena_shape_class_init(NRArenaShapeClass *klass);
42 static void nr_arena_shape_init(NRArenaShape *shape);
43 static void nr_arena_shape_finalize(NRObject *object);
45 static NRArenaItem *nr_arena_shape_children(NRArenaItem *item);
46 static void nr_arena_shape_add_child(NRArenaItem *item, NRArenaItem *child, NRArenaItem *ref);
47 static void nr_arena_shape_remove_child(NRArenaItem *item, NRArenaItem *child);
48 static void nr_arena_shape_set_child_position(NRArenaItem *item, NRArenaItem *child, NRArenaItem *ref);
50 static guint nr_arena_shape_update(NRArenaItem *item, NRRectL *area, NRGC *gc, guint state, guint reset);
51 static unsigned int nr_arena_shape_render(cairo_t *ct, NRArenaItem *item, NRRectL *area, NRPixBlock *pb, unsigned int flags);
52 static guint nr_arena_shape_clip(NRArenaItem *item, NRRectL *area, NRPixBlock *pb);
53 static NRArenaItem *nr_arena_shape_pick(NRArenaItem *item, NR::Point p, double delta, unsigned int sticky);
55 static NRArenaItemClass *shape_parent_class;
57 NRType
58 nr_arena_shape_get_type(void)
59 {
60 static NRType type = 0;
61 if (!type) {
62 type = nr_object_register_type(NR_TYPE_ARENA_ITEM,
63 "NRArenaShape",
64 sizeof(NRArenaShapeClass),
65 sizeof(NRArenaShape),
66 (void (*)(NRObjectClass *)) nr_arena_shape_class_init,
67 (void (*)(NRObject *)) nr_arena_shape_init);
68 }
69 return type;
70 }
72 static void
73 nr_arena_shape_class_init(NRArenaShapeClass *klass)
74 {
75 NRObjectClass *object_class;
76 NRArenaItemClass *item_class;
78 object_class = (NRObjectClass *) klass;
79 item_class = (NRArenaItemClass *) klass;
81 shape_parent_class = (NRArenaItemClass *) ((NRObjectClass *) klass)->parent;
83 object_class->finalize = nr_arena_shape_finalize;
84 object_class->cpp_ctor = NRObject::invoke_ctor<NRArenaShape>;
86 item_class->children = nr_arena_shape_children;
87 item_class->add_child = nr_arena_shape_add_child;
88 item_class->set_child_position = nr_arena_shape_set_child_position;
89 item_class->remove_child = nr_arena_shape_remove_child;
90 item_class->update = nr_arena_shape_update;
91 item_class->render = nr_arena_shape_render;
92 item_class->clip = nr_arena_shape_clip;
93 item_class->pick = nr_arena_shape_pick;
94 }
96 /**
97 * Initializes the arena shape, setting all parameters to null, 0, false,
98 * or other defaults
99 */
100 static void
101 nr_arena_shape_init(NRArenaShape *shape)
102 {
103 shape->curve = NULL;
104 shape->style = NULL;
105 shape->paintbox.x0 = shape->paintbox.y0 = 0.0F;
106 shape->paintbox.x1 = shape->paintbox.y1 = 256.0F;
108 nr_matrix_set_identity(&shape->ctm);
109 shape->fill_painter = NULL;
110 shape->stroke_painter = NULL;
111 shape->cached_fill = NULL;
112 shape->cached_stroke = NULL;
113 shape->cached_fpartialy = false;
114 shape->cached_spartialy = false;
115 shape->fill_shp = NULL;
116 shape->stroke_shp = NULL;
118 shape->delayed_shp = false;
120 shape->approx_bbox.x0 = shape->approx_bbox.y0 = 0;
121 shape->approx_bbox.x1 = shape->approx_bbox.y1 = 0;
122 nr_matrix_set_identity(&shape->cached_fctm);
123 nr_matrix_set_identity(&shape->cached_sctm);
125 shape->markers = NULL;
127 shape->last_pick = NULL;
128 shape->repick_after = 0;
129 }
131 static void
132 nr_arena_shape_finalize(NRObject *object)
133 {
134 NRArenaShape *shape = (NRArenaShape *) object;
136 if (shape->fill_shp) delete shape->fill_shp;
137 if (shape->stroke_shp) delete shape->stroke_shp;
138 if (shape->cached_fill) delete shape->cached_fill;
139 if (shape->cached_stroke) delete shape->cached_stroke;
140 if (shape->fill_painter) sp_painter_free(shape->fill_painter);
141 if (shape->stroke_painter) sp_painter_free(shape->stroke_painter);
143 if (shape->style) sp_style_unref(shape->style);
144 if (shape->curve) sp_curve_unref(shape->curve);
146 ((NRObjectClass *) shape_parent_class)->finalize(object);
147 }
149 /**
150 * Retrieves the markers from the item
151 */
152 static NRArenaItem *
153 nr_arena_shape_children(NRArenaItem *item)
154 {
155 NRArenaShape *shape = (NRArenaShape *) item;
157 return shape->markers;
158 }
160 /**
161 * Attaches child to item, and if ref is not NULL, sets it and ref->next as
162 * the prev and next items. If ref is NULL, then it sets the item's markers
163 * as the next items.
164 */
165 static void
166 nr_arena_shape_add_child(NRArenaItem *item, NRArenaItem *child, NRArenaItem *ref)
167 {
168 NRArenaShape *shape = (NRArenaShape *) item;
170 if (!ref) {
171 shape->markers = nr_arena_item_attach(item, child, NULL, shape->markers);
172 } else {
173 ref->next = nr_arena_item_attach(item, child, ref, ref->next);
174 }
176 nr_arena_item_request_update(item, NR_ARENA_ITEM_STATE_ALL, FALSE);
177 }
179 /**
180 * Removes child from the shape. If there are no prev items in
181 * the child, it sets items' markers to the next item in the child.
182 */
183 static void
184 nr_arena_shape_remove_child(NRArenaItem *item, NRArenaItem *child)
185 {
186 NRArenaShape *shape = (NRArenaShape *) item;
188 if (child->prev) {
189 nr_arena_item_detach(item, child);
190 } else {
191 shape->markers = nr_arena_item_detach(item, child);
192 }
194 nr_arena_item_request_update(item, NR_ARENA_ITEM_STATE_ALL, FALSE);
195 }
197 /**
198 * Detaches child from item, and if there are no previous items in child, it
199 * sets item's markers to the child. It then attaches the child back onto the item.
200 * If ref is null, it sets the markers to be the next item, otherwise it uses
201 * the next/prev items in ref.
202 */
203 static void
204 nr_arena_shape_set_child_position(NRArenaItem *item, NRArenaItem *child, NRArenaItem *ref)
205 {
206 NRArenaShape *shape = (NRArenaShape *) item;
208 if (child->prev) {
209 nr_arena_item_detach(item, child);
210 } else {
211 shape->markers = nr_arena_item_detach(item, child);
212 }
214 if (!ref) {
215 shape->markers = nr_arena_item_attach(item, child, NULL, shape->markers);
216 } else {
217 ref->next = nr_arena_item_attach(item, child, ref, ref->next);
218 }
220 nr_arena_item_request_render(child);
221 }
223 void nr_arena_shape_update_stroke(NRArenaShape *shape, NRGC* gc, NRRectL *area);
224 void nr_arena_shape_update_fill(NRArenaShape *shape, NRGC *gc, NRRectL *area, bool force_shape = false);
225 void nr_arena_shape_add_bboxes(NRArenaShape* shape,NRRect &bbox);
227 /**
228 * Updates the arena shape 'item' and all of its children, including the markers.
229 */
230 static guint
231 nr_arena_shape_update(NRArenaItem *item, NRRectL *area, NRGC *gc, guint state, guint reset)
232 {
233 NRRect bbox;
235 NRArenaShape *shape = NR_ARENA_SHAPE(item);
237 unsigned int beststate = NR_ARENA_ITEM_STATE_ALL;
239 unsigned int newstate;
240 for (NRArenaItem *child = shape->markers; child != NULL; child = child->next) {
241 newstate = nr_arena_item_invoke_update(child, area, gc, state, reset);
242 beststate = beststate & newstate;
243 }
245 if (!(state & NR_ARENA_ITEM_STATE_RENDER)) {
246 /* We do not have to create rendering structures */
247 shape->ctm = gc->transform;
248 if (state & NR_ARENA_ITEM_STATE_BBOX) {
249 if (shape->curve) {
250 NRBPath bp;
251 /* fixme: */
252 bbox.x0 = bbox.y0 = NR_HUGE;
253 bbox.x1 = bbox.y1 = -NR_HUGE;
254 bp.path = SP_CURVE_BPATH(shape->curve);
255 nr_path_matrix_bbox_union(&bp, gc->transform, &bbox);
256 item->bbox.x0 = (gint32)(bbox.x0 - 1.0F);
257 item->bbox.y0 = (gint32)(bbox.y0 - 1.0F);
258 item->bbox.x1 = (gint32)(bbox.x1 + 1.9999F);
259 item->bbox.y1 = (gint32)(bbox.y1 + 1.9999F);
260 }
261 if (beststate & NR_ARENA_ITEM_STATE_BBOX) {
262 for (NRArenaItem *child = shape->markers; child != NULL; child = child->next) {
263 nr_rect_l_union(&item->bbox, &item->bbox, &child->bbox);
264 }
265 }
266 }
267 return (state | item->state);
268 }
270 shape->delayed_shp=true;
271 shape->ctm = gc->transform;
272 bbox.x0 = bbox.y0 = NR_HUGE;
273 bbox.x1 = bbox.y1 = -NR_HUGE;
275 bool outline = (NR_ARENA_ITEM(shape)->arena->rendermode == RENDERMODE_OUTLINE);
277 if (shape->curve) {
278 NRBPath bp;
279 /* fixme: */
280 bbox.x0 = bbox.y0 = NR_HUGE;
281 bbox.x1 = bbox.y1 = -NR_HUGE;
282 bp.path = SP_CURVE_BPATH(shape->curve);
283 nr_path_matrix_bbox_union(&bp, gc->transform, &bbox);
284 if (shape->_stroke.paint.type() != NRArenaShape::Paint::NONE || outline) {
285 float width, scale;
286 scale = NR_MATRIX_DF_EXPANSION(&gc->transform);
287 width = MAX(0.125, shape->_stroke.width * scale);
288 if ( fabs(shape->_stroke.width * scale) > 0.01 ) { // sinon c'est 0=oon veut pas de bord
289 bbox.x0-=width;
290 bbox.x1+=width;
291 bbox.y0-=width;
292 bbox.y1+=width;
293 }
294 // those pesky miters, now
295 float miterMax=width*shape->_stroke.mitre_limit;
296 if ( miterMax > 0.01 ) {
297 // grunt mode. we should compute the various miters instead (one for each point on the curve)
298 bbox.x0-=miterMax;
299 bbox.x1+=miterMax;
300 bbox.y0-=miterMax;
301 bbox.y1+=miterMax;
302 }
303 }
304 } else {
305 }
306 shape->approx_bbox.x0 = (gint32)(bbox.x0 - 1.0F);
307 shape->approx_bbox.y0 = (gint32)(bbox.y0 - 1.0F);
308 shape->approx_bbox.x1 = (gint32)(bbox.x1 + 1.9999F);
309 shape->approx_bbox.y1 = (gint32)(bbox.y1 + 1.9999F);
310 if ( area && nr_rect_l_test_intersect(area, &shape->approx_bbox) ) shape->delayed_shp=false;
312 /* Release state data */
313 if (TRUE || !nr_matrix_test_transform_equal(&gc->transform, &shape->ctm, NR_EPSILON)) {
314 /* Concept test */
315 if (shape->fill_shp) {
316 delete shape->fill_shp;
317 shape->fill_shp = NULL;
318 }
319 }
320 if (shape->stroke_shp) {
321 delete shape->stroke_shp;
322 shape->stroke_shp = NULL;
323 }
324 if (shape->fill_painter) {
325 sp_painter_free(shape->fill_painter);
326 shape->fill_painter = NULL;
327 }
328 if (shape->stroke_painter) {
329 sp_painter_free(shape->stroke_painter);
330 shape->stroke_painter = NULL;
331 }
333 if (!shape->curve ||
334 !shape->style ||
335 sp_curve_is_empty(shape->curve) ||
336 (( shape->_fill.paint.type() == NRArenaShape::Paint::NONE ) &&
337 ( shape->_stroke.paint.type() == NRArenaShape::Paint::NONE && !outline) ))
338 {
339 item->bbox = shape->approx_bbox;
340 return NR_ARENA_ITEM_STATE_ALL;
341 }
343 /* Build state data */
344 if ( shape->delayed_shp ) {
345 item->bbox=shape->approx_bbox;
346 } else {
347 nr_arena_shape_update_stroke(shape, gc, area);
348 nr_arena_shape_update_fill(shape, gc, area);
350 bbox.x0 = bbox.y0 = bbox.x1 = bbox.y1 = 0.0;
351 nr_arena_shape_add_bboxes(shape,bbox);
353 shape->approx_bbox.x0 = (gint32)(bbox.x0 - 1.0F);
354 shape->approx_bbox.y0 = (gint32)(bbox.y0 - 1.0F);
355 shape->approx_bbox.x1 = (gint32)(bbox.x1 + 1.9999F);
356 shape->approx_bbox.y1 = (gint32)(bbox.y1 + 1.9999F);
357 }
359 if (nr_rect_d_test_empty(&bbox)) return NR_ARENA_ITEM_STATE_ALL;
361 item->bbox.x0 = (gint32)(bbox.x0 - 1.0F);
362 item->bbox.y0 = (gint32)(bbox.y0 - 1.0F);
363 item->bbox.x1 = (gint32)(bbox.x1 + 1.0F);
364 item->bbox.y1 = (gint32)(bbox.y1 + 1.0F);
365 nr_arena_request_render_rect(item->arena, &item->bbox);
367 item->render_opacity = TRUE;
368 if ( shape->_fill.paint.type() == NRArenaShape::Paint::SERVER ) {
369 if (gc && gc->parent) {
370 shape->fill_painter = sp_paint_server_painter_new(shape->_fill.paint.server(),
371 NR::Matrix(&gc->transform), NR::Matrix(&gc->parent->transform),
372 &shape->paintbox);
373 }
374 item->render_opacity = FALSE;
375 }
376 if ( shape->_stroke.paint.type() == NRArenaShape::Paint::SERVER ) {
377 if (gc && gc->parent) {
378 shape->stroke_painter = sp_paint_server_painter_new(shape->_stroke.paint.server(),
379 NR::Matrix(&gc->transform), NR::Matrix(&gc->parent->transform),
380 &shape->paintbox);
381 }
382 item->render_opacity = FALSE;
383 }
384 if ( (shape->_fill.paint.type() != NRArenaShape::Paint::NONE &&
385 shape->_stroke.paint.type() != NRArenaShape::Paint::NONE)
386 || (shape->markers)
387 )
388 {
389 // don't merge item opacity with paint opacity if there is a stroke on the fill, or markers on stroke
390 item->render_opacity = FALSE;
391 }
393 if (beststate & NR_ARENA_ITEM_STATE_BBOX) {
394 for (NRArenaItem *child = shape->markers; child != NULL; child = child->next) {
395 nr_rect_l_union(&item->bbox, &item->bbox, &child->bbox);
396 }
397 }
399 return NR_ARENA_ITEM_STATE_ALL;
400 }
402 int matrix_is_isometry(NR::Matrix p) {
403 NR::Matrix tp;
404 // transposition
405 tp[0]=p[0];
406 tp[1]=p[2];
407 tp[2]=p[1];
408 tp[3]=p[3];
409 for (int i = 4; i < 6; i++) // shut valgrind up :)
410 tp[i] = p[i] = 0;
411 NR::Matrix isom = tp*p; // A^T * A = adjunct?
412 // Is the adjunct nearly an identity function?
413 if (isom.is_translation(0.01)) {
414 // the transformation is an isometry -> no need to recompute
415 // the uncrossed polygon
416 if ( p.det() < 0 )
417 return -1;
418 else
419 return 1;
420 }
421 return 0;
422 }
424 static bool is_inner_area(NRRectL const &outer, NRRectL const &inner) {
425 return (outer.x0 <= inner.x0 && outer.y0 <= inner.y0 && outer.x1 >= inner.x1 && outer.y1 >= inner.y1);
426 }
428 /** force_shape is used for clipping paths, when we need the shape for clipping even if it's not filled */
429 void
430 nr_arena_shape_update_fill(NRArenaShape *shape, NRGC *gc, NRRectL *area, bool force_shape)
431 {
432 if ((shape->_fill.paint.type() != NRArenaShape::Paint::NONE || force_shape) &&
433 ((shape->curve->end > 2) || (SP_CURVE_BPATH(shape->curve)[1].code == NR_CURVETO)) ) {
434 if (TRUE || !shape->fill_shp) {
435 NR::Matrix cached_to_new = NR::identity();
436 int isometry = 0;
437 if ( shape->cached_fill ) {
438 if (shape->cached_fctm == gc->transform) {
439 isometry = 2; // identity
440 } else {
441 cached_to_new = shape->cached_fctm.inverse() * gc->transform;
442 isometry = matrix_is_isometry(cached_to_new);
443 }
444 if (0 != isometry && !is_inner_area(shape->cached_farea, *area))
445 isometry = 0;
446 }
447 if ( isometry == 0 ) {
448 if ( shape->cached_fill == NULL ) shape->cached_fill=new Shape;
449 shape->cached_fill->Reset();
451 Path* thePath=new Path;
452 Shape* theShape=new Shape;
453 {
454 NR::Matrix tempMat(gc->transform);
455 thePath->LoadArtBPath(SP_CURVE_BPATH(shape->curve),tempMat,true);
456 }
458 if (is_inner_area(*area, NR_ARENA_ITEM(shape)->bbox)) {
459 thePath->Convert(1.0);
460 shape->cached_fpartialy = false;
461 } else {
462 thePath->Convert(area, 1.0);
463 shape->cached_fpartialy = true;
464 }
466 thePath->Fill(theShape, 0);
468 if ( shape->_fill.rule == NRArenaShape::EVEN_ODD ) {
469 shape->cached_fill->ConvertToShape(theShape, fill_oddEven);
470 // alternatively, this speeds up rendering of oddeven shapes but disables AA :(
471 //shape->cached_fill->Copy(theShape);
472 } else {
473 shape->cached_fill->ConvertToShape(theShape, fill_nonZero);
474 }
475 shape->cached_fctm=gc->transform;
476 shape->cached_farea = *area;
477 delete theShape;
478 delete thePath;
479 if ( shape->fill_shp == NULL )
480 shape->fill_shp = new Shape;
482 shape->fill_shp->Copy(shape->cached_fill);
484 } else if ( 2 == isometry ) {
485 if ( shape->fill_shp == NULL ) {
486 shape->fill_shp = new Shape;
487 shape->fill_shp->Copy(shape->cached_fill);
488 }
489 } else {
491 if ( shape->fill_shp == NULL )
492 shape->fill_shp = new Shape;
494 shape->fill_shp->Reset(shape->cached_fill->numberOfPoints(),
495 shape->cached_fill->numberOfEdges());
496 for (int i = 0; i < shape->cached_fill->numberOfPoints(); i++)
497 shape->fill_shp->AddPoint(shape->cached_fill->getPoint(i).x * cached_to_new);
498 if ( isometry == 1 ) {
499 for (int i = 0; i < shape->cached_fill->numberOfEdges(); i++)
500 shape->fill_shp->AddEdge(shape->cached_fill->getEdge(i).st,
501 shape->cached_fill->getEdge(i).en);
502 } else if ( isometry == -1 ) { // need to flip poly.
503 for (int i = 0; i < shape->cached_fill->numberOfEdges(); i++)
504 shape->fill_shp->AddEdge(shape->cached_fill->getEdge(i).en,
505 shape->cached_fill->getEdge(i).st);
506 }
507 shape->fill_shp->ForceToPolygon();
508 shape->fill_shp->needPointsSorting();
509 shape->fill_shp->needEdgesSorting();
510 }
511 shape->delayed_shp |= shape->cached_fpartialy;
512 }
513 }
514 }
516 void
517 nr_arena_shape_update_stroke(NRArenaShape *shape,NRGC* gc, NRRectL *area)
518 {
519 SPStyle* style = shape->style;
521 float const scale = NR_MATRIX_DF_EXPANSION(&gc->transform);
523 bool outline = (NR_ARENA_ITEM(shape)->arena->rendermode == RENDERMODE_OUTLINE);
525 if (outline) {
526 // cairo does not need the livarot path for rendering
527 return;
528 }
530 // after switching normal stroke rendering to cairo too, optimize this: lower tolerance, disregard dashes
531 // (since it will only be used for picking, not for rendering)
533 if (outline ||
534 ((shape->_stroke.paint.type() != NRArenaShape::Paint::NONE) &&
535 ( fabs(shape->_stroke.width * scale) > 0.01 ))) { // sinon c'est 0=oon veut pas de bord
537 float style_width = MAX(0.125, shape->_stroke.width * scale);
538 float width;
539 if (outline) {
540 width = 0.5; // 1 pixel wide, independent of zoom
541 } else {
542 width = style_width;
543 }
545 NR::Matrix cached_to_new = NR::identity();
547 int isometry = 0;
548 if ( shape->cached_stroke ) {
549 if (shape->cached_sctm == gc->transform) {
550 isometry = 2; // identity
551 } else {
552 cached_to_new = shape->cached_sctm.inverse() * gc->transform;
553 isometry = matrix_is_isometry(cached_to_new);
554 }
555 if (0 != isometry && !is_inner_area(shape->cached_sarea, *area))
556 isometry = 0;
557 if (0 != isometry && width != shape->cached_width) {
558 // if this happens without setting style, we have just switched to outline or back
559 isometry = 0;
560 }
561 }
563 if ( isometry == 0 ) {
564 if ( shape->cached_stroke == NULL ) shape->cached_stroke=new Shape;
565 shape->cached_stroke->Reset();
566 Path* thePath = new Path;
567 Shape* theShape = new Shape;
568 {
569 NR::Matrix tempMat(gc->transform);
570 thePath->LoadArtBPath(SP_CURVE_BPATH(shape->curve), tempMat, true);
571 }
573 // add some padding to the rendering area, so clipped path does not go into a render area
574 NRRectL padded_area = *area;
575 padded_area.x0 -= (NR::ICoord)width;
576 padded_area.x1 += (NR::ICoord)width;
577 padded_area.y0 -= (NR::ICoord)width;
578 padded_area.y1 += (NR::ICoord)width;
579 if ((style->stroke_dash.n_dash && !outline) || is_inner_area(padded_area, NR_ARENA_ITEM(shape)->bbox)) {
580 thePath->Convert((outline) ? 4.0 : 1.0);
581 shape->cached_spartialy = false;
582 }
583 else {
584 thePath->Convert(&padded_area, (outline) ? 4.0 : 1.0);
585 shape->cached_spartialy = true;
586 }
588 if (style->stroke_dash.n_dash && !outline) {
589 thePath->DashPolylineFromStyle(style, scale, 1.0);
590 }
592 ButtType butt=butt_straight;
593 switch (shape->_stroke.cap) {
594 case NRArenaShape::BUTT_CAP:
595 butt = butt_straight;
596 break;
597 case NRArenaShape::ROUND_CAP:
598 butt = butt_round;
599 break;
600 case NRArenaShape::SQUARE_CAP:
601 butt = butt_square;
602 break;
603 }
604 JoinType join=join_straight;
605 switch (shape->_stroke.join) {
606 case NRArenaShape::MITRE_JOIN:
607 join = join_pointy;
608 break;
609 case NRArenaShape::ROUND_JOIN:
610 join = join_round;
611 break;
612 case NRArenaShape::BEVEL_JOIN:
613 join = join_straight;
614 break;
615 }
617 if (outline) {
618 butt = butt_straight;
619 join = join_straight;
620 }
622 thePath->Stroke(theShape, false, 0.5*width, join, butt,
623 0.5*width*shape->_stroke.mitre_limit);
626 if (outline) {
627 // speeds it up, but uses evenodd for the stroke shape (which does not matter for 1-pixel wide outline)
628 shape->cached_stroke->Copy(theShape);
629 } else {
630 shape->cached_stroke->ConvertToShape(theShape, fill_nonZero);
631 }
633 shape->cached_width = width;
635 shape->cached_sctm=gc->transform;
636 shape->cached_sarea = *area;
637 delete thePath;
638 delete theShape;
639 if ( shape->stroke_shp == NULL ) shape->stroke_shp=new Shape;
641 shape->stroke_shp->Copy(shape->cached_stroke);
643 } else if ( 2 == isometry ) {
644 if ( shape->stroke_shp == NULL ) {
645 shape->stroke_shp=new Shape;
646 shape->stroke_shp->Copy(shape->cached_stroke);
647 }
648 } else {
649 if ( shape->stroke_shp == NULL )
650 shape->stroke_shp=new Shape;
651 shape->stroke_shp->Reset(shape->cached_stroke->numberOfPoints(), shape->cached_stroke->numberOfEdges());
652 for (int i = 0; i < shape->cached_stroke->numberOfPoints(); i++)
653 shape->stroke_shp->AddPoint(shape->cached_stroke->getPoint(i).x * cached_to_new);
654 if ( isometry == 1 ) {
655 for (int i = 0; i < shape->cached_stroke->numberOfEdges(); i++)
656 shape->stroke_shp->AddEdge(shape->cached_stroke->getEdge(i).st,
657 shape->cached_stroke->getEdge(i).en);
658 } else if ( isometry == -1 ) {
659 for (int i = 0; i < shape->cached_stroke->numberOfEdges(); i++)
660 shape->stroke_shp->AddEdge(shape->cached_stroke->getEdge(i).en,
661 shape->cached_stroke->getEdge(i).st);
662 }
663 shape->stroke_shp->ForceToPolygon();
664 shape->stroke_shp->needPointsSorting();
665 shape->stroke_shp->needEdgesSorting();
666 }
667 shape->delayed_shp |= shape->cached_spartialy;
668 }
669 }
672 void
673 nr_arena_shape_add_bboxes(NRArenaShape* shape, NRRect &bbox)
674 {
675 if ( shape->stroke_shp ) {
676 shape->stroke_shp->CalcBBox();
677 shape->stroke_shp->leftX=floor(shape->stroke_shp->leftX);
678 shape->stroke_shp->rightX=ceil(shape->stroke_shp->rightX);
679 shape->stroke_shp->topY=floor(shape->stroke_shp->topY);
680 shape->stroke_shp->bottomY=ceil(shape->stroke_shp->bottomY);
681 if ( bbox.x0 >= bbox.x1 ) {
682 if ( shape->stroke_shp->leftX < shape->stroke_shp->rightX ) {
683 bbox.x0=shape->stroke_shp->leftX;
684 bbox.x1=shape->stroke_shp->rightX;
685 }
686 } else {
687 if ( shape->stroke_shp->leftX < bbox.x0 )
688 bbox.x0=shape->stroke_shp->leftX;
689 if ( shape->stroke_shp->rightX > bbox.x1 )
690 bbox.x1=shape->stroke_shp->rightX;
691 }
692 if ( bbox.y0 >= bbox.y1 ) {
693 if ( shape->stroke_shp->topY < shape->stroke_shp->bottomY ) {
694 bbox.y0=shape->stroke_shp->topY;
695 bbox.y1=shape->stroke_shp->bottomY;
696 }
697 } else {
698 if ( shape->stroke_shp->topY < bbox.y0 )
699 bbox.y0=shape->stroke_shp->topY;
700 if ( shape->stroke_shp->bottomY > bbox.y1 )
701 bbox.y1=shape->stroke_shp->bottomY;
702 }
703 }
704 if ( shape->fill_shp ) {
705 shape->fill_shp->CalcBBox();
706 shape->fill_shp->leftX=floor(shape->fill_shp->leftX);
707 shape->fill_shp->rightX=ceil(shape->fill_shp->rightX);
708 shape->fill_shp->topY=floor(shape->fill_shp->topY);
709 shape->fill_shp->bottomY=ceil(shape->fill_shp->bottomY);
710 if ( bbox.x0 >= bbox.x1 ) {
711 if ( shape->fill_shp->leftX < shape->fill_shp->rightX ) {
712 bbox.x0=shape->fill_shp->leftX;
713 bbox.x1=shape->fill_shp->rightX;
714 }
715 } else {
716 if ( shape->fill_shp->leftX < bbox.x0 ) bbox.x0=shape->fill_shp->leftX;
717 if ( shape->fill_shp->rightX > bbox.x1 ) bbox.x1=shape->fill_shp->rightX;
718 }
719 if ( bbox.y0 >= bbox.y1 ) {
720 if ( shape->fill_shp->topY < shape->fill_shp->bottomY ) {
721 bbox.y0=shape->fill_shp->topY;
722 bbox.y1=shape->fill_shp->bottomY;
723 }
724 } else {
725 if ( shape->fill_shp->topY < bbox.y0 ) bbox.y0=shape->fill_shp->topY;
726 if ( shape->fill_shp->bottomY > bbox.y1 ) bbox.y1=shape->fill_shp->bottomY;
727 }
728 }
729 }
731 // cairo outline rendering:
732 static unsigned int
733 cairo_arena_shape_render_outline(cairo_t *ct, NRArenaItem *item, NR::Maybe<NR::Rect> area)
734 {
735 NRArenaShape *shape = NR_ARENA_SHAPE(item);
737 if (!ct)
738 return item->state;
740 guint32 rgba = NR_ARENA_ITEM(shape)->arena->outlinecolor;
741 // FIXME: we use RGBA buffers but cairo writes BGRA (on i386), so we must cheat
742 // by setting color channels in the "wrong" order
743 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));
745 cairo_set_line_width(ct, 0.5);
746 cairo_set_tolerance(ct, 1.25); // low quality, but good enough for outline mode
747 cairo_new_path(ct);
749 feed_curve_to_cairo (ct, SP_CURVE_BPATH(shape->curve), NR::Matrix(shape->ctm), area, true, 0);
751 cairo_stroke(ct);
753 return item->state;
754 }
756 // cairo stroke rendering (flat color only so far!):
757 // works on canvas, but wrongs the colors in nonpremul buffers: icons and png export
758 // (need to switch them to premul before this can be enabled)
759 void
760 cairo_arena_shape_render_stroke(NRArenaItem *item, NRRectL *area, NRPixBlock *pb)
761 {
762 NRArenaShape *shape = NR_ARENA_SHAPE(item);
763 SPStyle const *style = shape->style;
765 float const scale = NR_MATRIX_DF_EXPANSION(shape->ctm);
767 if (fabs(shape->_stroke.width * scale) < 0.01)
768 return;
770 cairo_t *ct = nr_create_cairo_context (area, pb);
772 if (!ct)
773 return;
775 guint32 rgba;
776 if ( item->render_opacity ) {
777 rgba = sp_color_get_rgba32_falpha(&shape->_stroke.paint.color(),
778 shape->_stroke.opacity *
779 SP_SCALE24_TO_FLOAT(style->opacity.value));
780 } else {
781 rgba = sp_color_get_rgba32_falpha(&shape->_stroke.paint.color(),
782 shape->_stroke.opacity);
783 }
785 // FIXME: we use RGBA buffers but cairo writes BGRA (on i386), so we must cheat
786 // by setting color channels in the "wrong" order
787 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));
789 float style_width = MAX(0.125, shape->_stroke.width * scale);
790 cairo_set_line_width(ct, style_width);
792 switch (shape->_stroke.cap) {
793 case NRArenaShape::BUTT_CAP:
794 cairo_set_line_cap(ct, CAIRO_LINE_CAP_BUTT);
795 break;
796 case NRArenaShape::ROUND_CAP:
797 cairo_set_line_cap(ct, CAIRO_LINE_CAP_ROUND);
798 break;
799 case NRArenaShape::SQUARE_CAP:
800 cairo_set_line_cap(ct, CAIRO_LINE_CAP_SQUARE);
801 break;
802 }
803 switch (shape->_stroke.join) {
804 case NRArenaShape::MITRE_JOIN:
805 cairo_set_line_join(ct, CAIRO_LINE_JOIN_MITER);
806 break;
807 case NRArenaShape::ROUND_JOIN:
808 cairo_set_line_join(ct, CAIRO_LINE_JOIN_ROUND);
809 break;
810 case NRArenaShape::BEVEL_JOIN:
811 cairo_set_line_join(ct, CAIRO_LINE_JOIN_BEVEL);
812 break;
813 }
815 cairo_set_miter_limit (ct, style->stroke_miterlimit.value);
817 if (style->stroke_dash.n_dash) {
818 NRVpathDash dash;
819 dash.offset = style->stroke_dash.offset * scale;
820 dash.n_dash = style->stroke_dash.n_dash;
821 dash.dash = g_new(double, dash.n_dash);
822 for (int i = 0; i < dash.n_dash; i++) {
823 dash.dash[i] = style->stroke_dash.dash[i] * scale;
824 }
825 cairo_set_dash (ct, dash.dash, dash.n_dash, dash.offset);
826 g_free(dash.dash);
827 }
829 cairo_set_tolerance(ct, 0.1);
830 cairo_new_path(ct);
832 feed_curve_to_cairo (ct, SP_CURVE_BPATH(shape->curve), NR::Matrix(shape->ctm), area->upgrade(), true, style_width);
834 cairo_stroke(ct);
836 cairo_surface_t *cst = cairo_get_target(ct);
837 cairo_destroy (ct);
838 cairo_surface_finish (cst);
839 cairo_surface_destroy (cst);
841 pb->empty = FALSE;
842 }
845 /**
846 * Renders the item. Markers are just composed into the parent buffer.
847 */
848 static unsigned int
849 nr_arena_shape_render(cairo_t *ct, NRArenaItem *item, NRRectL *area, NRPixBlock *pb, unsigned int flags)
850 {
851 NRArenaShape *shape = NR_ARENA_SHAPE(item);
853 if (!shape->curve) return item->state;
854 if (!shape->style) return item->state;
856 bool outline = (NR_ARENA_ITEM(shape)->arena->rendermode == RENDERMODE_OUTLINE);
858 if (outline) { // cairo outline rendering
860 pb->empty = FALSE;
861 unsigned int ret = cairo_arena_shape_render_outline (ct, item, (&pb->area)->upgrade());
862 if (ret & NR_ARENA_ITEM_STATE_INVALID) return ret;
864 } else {
866 if ( shape->delayed_shp ) {
867 if ( nr_rect_l_test_intersect(area, &item->bbox) ) {
868 NRGC tempGC(NULL);
869 tempGC.transform=shape->ctm;
870 shape->delayed_shp = false;
871 nr_arena_shape_update_stroke(shape,&tempGC,&pb->visible_area);
872 nr_arena_shape_update_fill(shape,&tempGC,&pb->visible_area);
873 /* NRRect bbox;
874 bbox.x0 = bbox.y0 = bbox.x1 = bbox.y1 = 0.0;
875 nr_arena_shape_add_bboxes(shape,bbox);
876 item->bbox.x0 = (gint32)(bbox.x0 - 1.0F);
877 item->bbox.y0 = (gint32)(bbox.y0 - 1.0F);
878 item->bbox.x1 = (gint32)(bbox.x1 + 1.0F);
879 item->bbox.y1 = (gint32)(bbox.y1 + 1.0F);
880 shape->approx_bbox=item->bbox;*/
881 } else {
882 return item->state;
883 }
884 }
886 SPStyle const *style = shape->style;
887 if (shape->fill_shp) {
888 NRPixBlock m;
889 guint32 rgba;
891 nr_pixblock_setup_fast(&m, NR_PIXBLOCK_MODE_A8, area->x0, area->y0, area->x1, area->y1, TRUE);
893 // if memory allocation failed, abort render
894 if (m.size != NR_PIXBLOCK_SIZE_TINY && m.data.px == NULL) {
895 nr_pixblock_release (&m);
896 return (item->state);
897 }
899 m.visible_area = pb->visible_area;
900 nr_pixblock_render_shape_mask_or(m,shape->fill_shp);
901 m.empty = FALSE;
903 if (shape->_fill.paint.type() == NRArenaShape::Paint::NONE) {
904 // do not render fill in any way
905 } else if (shape->_fill.paint.type() == NRArenaShape::Paint::COLOR) {
906 if ( item->render_opacity ) {
907 rgba = sp_color_get_rgba32_falpha(&shape->_fill.paint.color(),
908 shape->_fill.opacity *
909 SP_SCALE24_TO_FLOAT(style->opacity.value));
910 } else {
911 rgba = sp_color_get_rgba32_falpha(&shape->_fill.paint.color(),
912 shape->_fill.opacity);
913 }
914 nr_blit_pixblock_mask_rgba32(pb, &m, rgba);
915 pb->empty = FALSE;
916 } else if (shape->_fill.paint.type() == NRArenaShape::Paint::SERVER) {
917 if (shape->fill_painter) {
918 nr_arena_render_paintserver_fill(pb, area, shape->fill_painter, shape->_fill.opacity, &m);
919 }
920 }
922 nr_pixblock_release(&m);
923 }
925 if (shape->stroke_shp && shape->_stroke.paint.type() == NRArenaShape::Paint::COLOR) {
927 // cairo_arena_shape_render_stroke(item, area, pb);
929 guint32 rgba;
930 NRPixBlock m;
932 nr_pixblock_setup_fast(&m, NR_PIXBLOCK_MODE_A8, area->x0, area->y0, area->x1, area->y1, TRUE);
934 // if memory allocation failed, abort render
935 if (m.size != NR_PIXBLOCK_SIZE_TINY && m.data.px == NULL) {
936 nr_pixblock_release (&m);
937 return (item->state);
938 }
940 m.visible_area = pb->visible_area;
941 nr_pixblock_render_shape_mask_or(m, shape->stroke_shp);
942 m.empty = FALSE;
944 if ( item->render_opacity ) {
945 rgba = sp_color_get_rgba32_falpha(&shape->_stroke.paint.color(),
946 shape->_stroke.opacity *
947 SP_SCALE24_TO_FLOAT(style->opacity.value));
948 } else {
949 rgba = sp_color_get_rgba32_falpha(&shape->_stroke.paint.color(),
950 shape->_stroke.opacity);
951 }
952 nr_blit_pixblock_mask_rgba32(pb, &m, rgba);
953 pb->empty = FALSE;
955 nr_pixblock_release(&m);
957 } else if (shape->stroke_shp && shape->_stroke.paint.type() == NRArenaShape::Paint::SERVER) {
959 NRPixBlock m;
961 nr_pixblock_setup_fast(&m, NR_PIXBLOCK_MODE_A8, area->x0, area->y0, area->x1, area->y1, TRUE);
963 // if memory allocation failed, abort render
964 if (m.size != NR_PIXBLOCK_SIZE_TINY && m.data.px == NULL) {
965 nr_pixblock_release (&m);
966 return (item->state);
967 }
969 m.visible_area = pb->visible_area;
970 nr_pixblock_render_shape_mask_or(m, shape->stroke_shp);
971 m.empty = FALSE;
973 if (shape->stroke_painter) {
974 nr_arena_render_paintserver_fill(pb, area, shape->stroke_painter, shape->_stroke.opacity, &m);
975 }
977 nr_pixblock_release(&m);
978 }
980 } // non-cairo non-outline branch
982 /* Render markers into parent buffer */
983 for (NRArenaItem *child = shape->markers; child != NULL; child = child->next) {
984 unsigned int ret = nr_arena_item_invoke_render(ct, child, area, pb, flags);
985 if (ret & NR_ARENA_ITEM_STATE_INVALID) return ret;
986 }
988 return item->state;
989 }
992 // cairo clipping: this basically works except for the stride-must-be-divisible-by-4 cairo bug;
993 // reenable this when the bug is fixed and remove the rest of this function
994 static guint
995 cairo_arena_shape_clip(NRArenaItem *item, NRRectL *area, NRPixBlock *pb)
996 {
997 NRArenaShape *shape = NR_ARENA_SHAPE(item);
998 if (!shape->curve) return item->state;
1000 cairo_t *ct = nr_create_cairo_context (area, pb);
1002 if (!ct)
1003 return item->state;
1005 cairo_set_source_rgba(ct, 0, 0, 0, 1);
1007 cairo_new_path(ct);
1009 feed_curve_to_cairo (ct, SP_CURVE_BPATH(shape->curve), NR::Matrix(shape->ctm), (area)->upgrade(), false, 0);
1011 cairo_fill(ct);
1013 cairo_surface_t *cst = cairo_get_target(ct);
1014 cairo_destroy (ct);
1015 cairo_surface_finish (cst);
1016 cairo_surface_destroy (cst);
1018 pb->empty = FALSE;
1020 return item->state;
1021 }
1024 static guint
1025 nr_arena_shape_clip(NRArenaItem *item, NRRectL *area, NRPixBlock *pb)
1026 {
1027 //return cairo_arena_shape_clip(item, area, pb);
1029 NRArenaShape *shape = NR_ARENA_SHAPE(item);
1030 if (!shape->curve) return item->state;
1032 if ( shape->delayed_shp || shape->fill_shp == NULL) { // we need a fill shape no matter what
1033 if ( nr_rect_l_test_intersect(area, &item->bbox) ) {
1034 NRGC tempGC(NULL);
1035 tempGC.transform=shape->ctm;
1036 shape->delayed_shp = false;
1037 nr_arena_shape_update_fill(shape, &tempGC, &pb->visible_area, true);
1038 } else {
1039 return item->state;
1040 }
1041 }
1043 if ( shape->fill_shp ) {
1044 NRPixBlock m;
1046 /* fixme: We can OR in one step (Lauris) */
1047 nr_pixblock_setup_fast(&m, NR_PIXBLOCK_MODE_A8, area->x0, area->y0, area->x1, area->y1, TRUE);
1049 // if memory allocation failed, abort
1050 if (m.size != NR_PIXBLOCK_SIZE_TINY && m.data.px == NULL) {
1051 nr_pixblock_release (&m);
1052 return (item->state);
1053 }
1055 m.visible_area = pb->visible_area;
1056 nr_pixblock_render_shape_mask_or(m,shape->fill_shp);
1058 for (int y = area->y0; y < area->y1; y++) {
1059 unsigned char *s, *d;
1060 s = NR_PIXBLOCK_PX(&m) + (y - area->y0) * m.rs;
1061 d = NR_PIXBLOCK_PX(pb) + (y - area->y0) * pb->rs;
1062 for (int x = area->x0; x < area->x1; x++) {
1063 *d = NR_COMPOSEA_111(*s, *d);
1064 d ++;
1065 s ++;
1066 }
1067 }
1068 nr_pixblock_release(&m);
1069 pb->empty = FALSE;
1070 }
1072 return item->state;
1073 }
1075 static NRArenaItem *
1076 nr_arena_shape_pick(NRArenaItem *item, NR::Point p, double delta, unsigned int /*sticky*/)
1077 {
1078 NRArenaShape *shape = NR_ARENA_SHAPE(item);
1080 if (shape->repick_after > 0)
1081 shape->repick_after--;
1083 if (shape->repick_after > 0) // we are a slow, huge path. skip this pick, returning what was returned last time
1084 return shape->last_pick;
1086 if (!shape->curve) return NULL;
1087 if (!shape->style) return NULL;
1088 if (SP_SCALE24_TO_FLOAT(shape->style->opacity.value) == 0) // fully transparent, no pick
1089 return NULL;
1091 GTimeVal tstart, tfinish;
1092 g_get_current_time (&tstart);
1094 bool outline = (NR_ARENA_ITEM(shape)->arena->rendermode == RENDERMODE_OUTLINE);
1096 double width;
1097 if (outline) {
1098 width = 0.5;
1099 } else if (shape->_stroke.paint.type() != NRArenaShape::Paint::NONE && shape->_stroke.opacity > 1e-3) {
1100 float const scale = NR_MATRIX_DF_EXPANSION(&shape->ctm);
1101 width = MAX(0.125, shape->_stroke.width * scale) / 2;
1102 } else {
1103 width = 0;
1104 }
1106 NRBPath bp;
1107 bp.path = SP_CURVE_BPATH(shape->curve);
1108 double dist = NR_HUGE;
1109 int wind = 0;
1110 bool needfill = (shape->_fill.paint.type() != NRArenaShape::Paint::NONE
1111 && shape->_fill.opacity > 1e-3 && !outline);
1113 if (item->arena->canvasarena) {
1114 NR::Rect viewbox = item->arena->canvasarena->item.canvas->getViewbox();
1115 viewbox.growBy (width);
1116 nr_path_matrix_point_bbox_wind_distance(&bp, shape->ctm, p, NULL, needfill? &wind : NULL, &dist, 0.5, &viewbox);
1117 } else {
1118 nr_path_matrix_point_bbox_wind_distance(&bp, shape->ctm, p, NULL, needfill? &wind : NULL, &dist, 0.5, NULL);
1119 }
1121 g_get_current_time (&tfinish);
1122 glong this_pick = (tfinish.tv_sec - tstart.tv_sec) * 1000000 + (tfinish.tv_usec - tstart.tv_usec);
1123 //g_print ("pick time %lu\n", this_pick);
1125 if (this_pick > 10000) { // slow picking, remember to skip several new picks
1126 shape->repick_after = this_pick / 5000;
1127 }
1129 // covered by fill?
1130 if (needfill) {
1131 if (!shape->style->fill_rule.computed) {
1132 if (wind != 0) {
1133 shape->last_pick = item;
1134 return item;
1135 }
1136 } else {
1137 if (wind & 0x1) {
1138 shape->last_pick = item;
1139 return item;
1140 }
1141 }
1142 }
1144 // close to the edge, as defined by strokewidth and delta?
1145 // this ignores dashing (as if the stroke is solid) and always works as if caps are round
1146 if (needfill || width > 0) { // if either fill or stroke visible,
1147 if ((dist - width) < delta) {
1148 shape->last_pick = item;
1149 return item;
1150 }
1151 }
1153 // if not picked on the shape itself, try its markers
1154 for (NRArenaItem *child = shape->markers; child != NULL; child = child->next) {
1155 NRArenaItem *ret = nr_arena_item_invoke_pick(child, p, delta, 0);
1156 if (ret) {
1157 shape->last_pick = item;
1158 return item;
1159 }
1160 }
1162 shape->last_pick = NULL;
1163 return NULL;
1164 }
1166 /**
1167 *
1168 * Requests a render of the shape, then if the shape is already a curve it
1169 * unrefs the old curve; if the new curve is valid it creates a copy of the
1170 * curve and adds it to the shape. Finally, it requests an update of the
1171 * arena for the shape.
1172 */
1173 void nr_arena_shape_set_path(NRArenaShape *shape, SPCurve *curve,bool justTrans)
1174 {
1175 g_return_if_fail(shape != NULL);
1176 g_return_if_fail(NR_IS_ARENA_SHAPE(shape));
1178 if ( justTrans == false ) {
1179 // dirty cached versions
1180 if ( shape->cached_fill ) {
1181 delete shape->cached_fill;
1182 shape->cached_fill=NULL;
1183 }
1184 if ( shape->cached_stroke ) {
1185 delete shape->cached_stroke;
1186 shape->cached_stroke=NULL;
1187 }
1188 }
1190 nr_arena_item_request_render(NR_ARENA_ITEM(shape));
1192 if (shape->curve) {
1193 sp_curve_unref(shape->curve);
1194 shape->curve = NULL;
1195 }
1197 if (curve) {
1198 shape->curve = curve;
1199 sp_curve_ref(curve);
1200 }
1202 nr_arena_item_request_update(NR_ARENA_ITEM(shape), NR_ARENA_ITEM_STATE_ALL, FALSE);
1203 }
1205 void NRArenaShape::setFill(SPPaintServer *server) {
1206 _fill.paint.set(server);
1207 _invalidateCachedFill();
1208 }
1210 void NRArenaShape::setFill(SPColor const &color) {
1211 _fill.paint.set(color);
1212 _invalidateCachedFill();
1213 }
1215 void NRArenaShape::setFillOpacity(double opacity) {
1216 _fill.opacity = opacity;
1217 _invalidateCachedFill();
1218 }
1220 void NRArenaShape::setFillRule(NRArenaShape::FillRule rule) {
1221 _fill.rule = rule;
1222 _invalidateCachedFill();
1223 }
1225 void NRArenaShape::setStroke(SPPaintServer *server) {
1226 _stroke.paint.set(server);
1227 _invalidateCachedStroke();
1228 }
1230 void NRArenaShape::setStroke(SPColor const &color) {
1231 _stroke.paint.set(color);
1232 _invalidateCachedStroke();
1233 }
1235 void NRArenaShape::setStrokeOpacity(double opacity) {
1236 _stroke.opacity = opacity;
1237 _invalidateCachedStroke();
1238 }
1240 void NRArenaShape::setStrokeWidth(double width) {
1241 _stroke.width = width;
1242 _invalidateCachedStroke();
1243 }
1245 void NRArenaShape::setMitreLimit(double limit) {
1246 _stroke.mitre_limit = limit;
1247 _invalidateCachedStroke();
1248 }
1250 void NRArenaShape::setLineCap(NRArenaShape::CapType cap) {
1251 _stroke.cap = cap;
1252 _invalidateCachedStroke();
1253 }
1255 void NRArenaShape::setLineJoin(NRArenaShape::JoinType join) {
1256 _stroke.join = join;
1257 _invalidateCachedStroke();
1258 }
1260 /** nr_arena_shape_set_style
1261 *
1262 * Unrefs any existing style and ref's to the given one, then requests an update of the arena
1263 */
1264 void
1265 nr_arena_shape_set_style(NRArenaShape *shape, SPStyle *style)
1266 {
1267 g_return_if_fail(shape != NULL);
1268 g_return_if_fail(NR_IS_ARENA_SHAPE(shape));
1270 if (style) sp_style_ref(style);
1271 if (shape->style) sp_style_unref(shape->style);
1272 shape->style = style;
1274 switch (style->fill.type) {
1275 case SP_PAINT_TYPE_NONE: {
1276 shape->setFill(NULL);
1277 break;
1278 }
1279 case SP_PAINT_TYPE_COLOR: {
1280 shape->setFill(style->fill.value.color);
1281 break;
1282 }
1283 case SP_PAINT_TYPE_PAINTSERVER: {
1284 shape->setFill(style->fill.value.paint.server);
1285 break;
1286 }
1287 default: {
1288 g_assert_not_reached();
1289 }
1290 }
1291 shape->setFillOpacity(SP_SCALE24_TO_FLOAT(style->fill_opacity.value));
1292 switch (style->fill_rule.computed) {
1293 case SP_WIND_RULE_EVENODD: {
1294 shape->setFillRule(NRArenaShape::EVEN_ODD);
1295 break;
1296 }
1297 case SP_WIND_RULE_NONZERO: {
1298 shape->setFillRule(NRArenaShape::NONZERO);
1299 break;
1300 }
1301 default: {
1302 g_assert_not_reached();
1303 }
1304 }
1306 switch (style->stroke.type) {
1307 case SP_PAINT_TYPE_NONE: {
1308 shape->setStroke(NULL);
1309 break;
1310 }
1311 case SP_PAINT_TYPE_COLOR: {
1312 shape->setStroke(style->stroke.value.color);
1313 break;
1314 }
1315 case SP_PAINT_TYPE_PAINTSERVER: {
1316 shape->setStroke(style->stroke.value.paint.server);
1317 break;
1318 }
1319 default: {
1320 g_assert_not_reached();
1321 }
1322 }
1323 shape->setStrokeWidth(style->stroke_width.computed);
1324 shape->setStrokeOpacity(SP_SCALE24_TO_FLOAT(style->stroke_opacity.value));
1325 switch (style->stroke_linecap.computed) {
1326 case SP_STROKE_LINECAP_ROUND: {
1327 shape->setLineCap(NRArenaShape::ROUND_CAP);
1328 break;
1329 }
1330 case SP_STROKE_LINECAP_SQUARE: {
1331 shape->setLineCap(NRArenaShape::SQUARE_CAP);
1332 break;
1333 }
1334 case SP_STROKE_LINECAP_BUTT: {
1335 shape->setLineCap(NRArenaShape::BUTT_CAP);
1336 break;
1337 }
1338 default: {
1339 g_assert_not_reached();
1340 }
1341 }
1342 switch (style->stroke_linejoin.computed) {
1343 case SP_STROKE_LINEJOIN_ROUND: {
1344 shape->setLineJoin(NRArenaShape::ROUND_JOIN);
1345 break;
1346 }
1347 case SP_STROKE_LINEJOIN_BEVEL: {
1348 shape->setLineJoin(NRArenaShape::BEVEL_JOIN);
1349 break;
1350 }
1351 case SP_STROKE_LINEJOIN_MITER: {
1352 shape->setLineJoin(NRArenaShape::MITRE_JOIN);
1353 break;
1354 }
1355 default: {
1356 g_assert_not_reached();
1357 }
1358 }
1359 shape->setMitreLimit(style->stroke_miterlimit.value);
1361 //if shape has a filter
1362 if (style->filter.set && style->filter.filter) {
1363 if (!shape->filter) {
1364 int primitives = sp_filter_primitive_count(style->filter.filter);
1365 shape->filter = new NR::Filter(primitives);
1366 }
1367 sp_filter_build_renderer(style->filter.filter, shape->filter);
1368 } else {
1369 //no filter set for this shape
1370 delete shape->filter;
1371 shape->filter = NULL;
1372 }
1374 nr_arena_item_request_update(shape, NR_ARENA_ITEM_STATE_ALL, FALSE);
1375 }
1377 void
1378 nr_arena_shape_set_paintbox(NRArenaShape *shape, NRRect const *pbox)
1379 {
1380 g_return_if_fail(shape != NULL);
1381 g_return_if_fail(NR_IS_ARENA_SHAPE(shape));
1382 g_return_if_fail(pbox != NULL);
1384 if ((pbox->x0 < pbox->x1) && (pbox->y0 < pbox->y1)) {
1385 shape->paintbox = *pbox;
1386 } else {
1387 /* fixme: We kill warning, although not sure what to do here (Lauris) */
1388 shape->paintbox.x0 = shape->paintbox.y0 = 0.0F;
1389 shape->paintbox.x1 = shape->paintbox.y1 = 256.0F;
1390 }
1392 nr_arena_item_request_update(shape, NR_ARENA_ITEM_STATE_ALL, FALSE);
1393 }
1395 void NRArenaShape::setPaintBox(NR::Rect const &pbox)
1396 {
1397 paintbox.x0 = pbox.min()[NR::X];
1398 paintbox.y0 = pbox.min()[NR::Y];
1399 paintbox.x1 = pbox.max()[NR::X];
1400 paintbox.y1 = pbox.max()[NR::Y];
1402 nr_arena_item_request_update(this, NR_ARENA_ITEM_STATE_ALL, FALSE);
1403 }
1405 static void
1406 shape_run_A8_OR(raster_info &dest,void */*data*/,int st,float vst,int en,float ven)
1407 {
1408 if ( st >= en ) return;
1409 if ( vst < 0 ) vst=0;
1410 if ( vst > 1 ) vst=1;
1411 if ( ven < 0 ) ven=0;
1412 if ( ven > 1 ) ven=1;
1413 float sv=vst;
1414 float dv=ven-vst;
1415 int len=en-st;
1416 unsigned char* d=(unsigned char*)dest.buffer;
1417 d+=(st-dest.startPix);
1418 if ( fabs(dv) < 0.001 ) {
1419 if ( vst > 0.999 ) {
1420 /* Simple copy */
1421 while (len > 0) {
1422 d[0] = 255;
1423 d += 1;
1424 len -= 1;
1425 }
1426 } else {
1427 sv*=256;
1428 unsigned int c0_24=(int)sv;
1429 c0_24&=0xFF;
1430 while (len > 0) {
1431 /* Draw */
1432 d[0] = NR_COMPOSEA_111(c0_24,d[0]);
1433 d += 1;
1434 len -= 1;
1435 }
1436 }
1437 } else {
1438 if ( en <= st+1 ) {
1439 sv=0.5*(vst+ven);
1440 sv*=256;
1441 unsigned int c0_24=(int)sv;
1442 c0_24&=0xFF;
1443 /* Draw */
1444 d[0] = NR_COMPOSEA_111(c0_24,d[0]);
1445 } else {
1446 dv/=len;
1447 sv+=0.5*dv; // correction trapezoidale
1448 sv*=16777216;
1449 dv*=16777216;
1450 int c0_24 = static_cast<int>(CLAMP(sv, 0, 16777216));
1451 int s0_24 = static_cast<int>(dv);
1452 while (len > 0) {
1453 unsigned int ca;
1454 /* Draw */
1455 ca = c0_24 >> 16;
1456 if ( ca > 255 ) ca=255;
1457 d[0] = NR_COMPOSEA_111(ca,d[0]);
1458 d += 1;
1459 c0_24 += s0_24;
1460 c0_24 = CLAMP(c0_24, 0, 16777216);
1461 len -= 1;
1462 }
1463 }
1464 }
1465 }
1467 void nr_pixblock_render_shape_mask_or(NRPixBlock &m,Shape* theS)
1468 {
1469 theS->CalcBBox();
1470 float l = theS->leftX, r = theS->rightX, t = theS->topY, b = theS->bottomY;
1471 int il,ir,it,ib;
1472 il=(int)floor(l);
1473 ir=(int)ceil(r);
1474 it=(int)floor(t);
1475 ib=(int)ceil(b);
1477 if ( il >= m.area.x1 || ir <= m.area.x0 || it >= m.area.y1 || ib <= m.area.y0 ) return;
1478 if ( il < m.area.x0 ) il=m.area.x0;
1479 if ( it < m.area.y0 ) it=m.area.y0;
1480 if ( ir > m.area.x1 ) ir=m.area.x1;
1481 if ( ib > m.area.y1 ) ib=m.area.y1;
1483 /* This is the FloatLigne version. See svn (prior to Apr 2006) for versions using BitLigne or direct BitLigne. */
1484 int curPt;
1485 float curY;
1486 theS->BeginQuickRaster(curY, curPt);
1488 FloatLigne *theI = new FloatLigne();
1489 IntLigne *theIL = new IntLigne();
1491 theS->DirectQuickScan(curY, curPt, (float) it, true, 1.0);
1493 char *mdata = (char*)m.data.px;
1494 if ( m.size == NR_PIXBLOCK_SIZE_TINY ) mdata=(char*)m.data.p;
1495 uint32_t *ligStart = ((uint32_t*)(mdata + ((il - m.area.x0) + m.rs * (it - m.area.y0))));
1496 for (int y = it; y < ib; y++) {
1497 theI->Reset();
1498 theS->QuickScan(curY, curPt, ((float)(y+1)), theI, 1.0);
1499 theI->Flatten();
1500 theIL->Copy(theI);
1502 raster_info dest;
1503 dest.startPix=il;
1504 dest.endPix=ir;
1505 dest.sth=il;
1506 dest.stv=y;
1507 dest.buffer=ligStart;
1508 theIL->Raster(dest, NULL, shape_run_A8_OR);
1509 ligStart=((uint32_t*)(((char*)ligStart)+m.rs));
1510 }
1511 theS->EndQuickRaster();
1512 delete theI;
1513 delete theIL;
1514 }
1517 /*
1518 Local Variables:
1519 mode:c++
1520 c-file-style:"stroustrup"
1521 c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
1522 indent-tabs-mode:nil
1523 fill-column:99
1524 End:
1525 */
1526 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=99 :