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 */
15 #include <2geom/svg-path.h>
16 #include <2geom/svg-path-parser.h>
17 #include <display/canvas-arena.h>
18 #include <display/nr-arena.h>
19 #include <display/nr-arena-shape.h>
20 #include "display/curve.h"
21 #include <libnr/nr-pixops.h>
22 #include <libnr/nr-blit.h>
23 #include <libnr/nr-convert2geom.h>
24 #include <2geom/pathvector.h>
25 #include <2geom/curves.h>
26 #include <livarot/Path.h>
27 #include <livarot/float-line.h>
28 #include <livarot/int-line.h>
29 #include <style.h>
30 #include "inkscape-cairo.h"
31 #include "helper/geom.h"
32 #include "helper/geom-curves.h"
33 #include "sp-filter.h"
34 #include "sp-filter-reference.h"
35 #include "display/nr-filter.h"
36 #include <typeinfo>
37 #include <cairo.h>
38 #include "preferences.h"
40 #include <glib.h>
41 #include "svg/svg.h"
42 #include <fenv.h>
44 //int showRuns=0;
45 void nr_pixblock_render_shape_mask_or(NRPixBlock &m,Shape* theS);
47 static void nr_arena_shape_class_init(NRArenaShapeClass *klass);
48 static void nr_arena_shape_init(NRArenaShape *shape);
49 static void nr_arena_shape_finalize(NRObject *object);
51 static NRArenaItem *nr_arena_shape_children(NRArenaItem *item);
52 static void nr_arena_shape_add_child(NRArenaItem *item, NRArenaItem *child, NRArenaItem *ref);
53 static void nr_arena_shape_remove_child(NRArenaItem *item, NRArenaItem *child);
54 static void nr_arena_shape_set_child_position(NRArenaItem *item, NRArenaItem *child, NRArenaItem *ref);
56 static guint nr_arena_shape_update(NRArenaItem *item, NRRectL *area, NRGC *gc, guint state, guint reset);
57 static unsigned int nr_arena_shape_render(cairo_t *ct, NRArenaItem *item, NRRectL *area, NRPixBlock *pb, unsigned int flags);
58 static guint nr_arena_shape_clip(NRArenaItem *item, NRRectL *area, NRPixBlock *pb);
59 static NRArenaItem *nr_arena_shape_pick(NRArenaItem *item, Geom::Point p, double delta, unsigned int sticky);
61 static NRArenaItemClass *shape_parent_class;
63 NRType
64 nr_arena_shape_get_type(void)
65 {
66 static NRType type = 0;
67 if (!type) {
68 type = nr_object_register_type(NR_TYPE_ARENA_ITEM,
69 "NRArenaShape",
70 sizeof(NRArenaShapeClass),
71 sizeof(NRArenaShape),
72 (void (*)(NRObjectClass *)) nr_arena_shape_class_init,
73 (void (*)(NRObject *)) nr_arena_shape_init);
74 }
75 return type;
76 }
78 static void
79 nr_arena_shape_class_init(NRArenaShapeClass *klass)
80 {
81 NRObjectClass *object_class;
82 NRArenaItemClass *item_class;
84 object_class = (NRObjectClass *) klass;
85 item_class = (NRArenaItemClass *) klass;
87 shape_parent_class = (NRArenaItemClass *) ((NRObjectClass *) klass)->parent;
89 object_class->finalize = nr_arena_shape_finalize;
90 object_class->cpp_ctor = NRObject::invoke_ctor<NRArenaShape>;
92 item_class->children = nr_arena_shape_children;
93 item_class->add_child = nr_arena_shape_add_child;
94 item_class->set_child_position = nr_arena_shape_set_child_position;
95 item_class->remove_child = nr_arena_shape_remove_child;
96 item_class->update = nr_arena_shape_update;
97 item_class->render = nr_arena_shape_render;
98 item_class->clip = nr_arena_shape_clip;
99 item_class->pick = nr_arena_shape_pick;
100 }
102 /**
103 * Initializes the arena shape, setting all parameters to null, 0, false,
104 * or other defaults
105 */
106 static void
107 nr_arena_shape_init(NRArenaShape *shape)
108 {
109 shape->curve = NULL;
110 shape->style = NULL;
111 shape->paintbox.x0 = shape->paintbox.y0 = 0.0F;
112 shape->paintbox.x1 = shape->paintbox.y1 = 256.0F;
114 shape->ctm.setIdentity();
115 shape->fill_painter = NULL;
116 shape->stroke_painter = NULL;
117 shape->cached_fill = NULL;
118 shape->cached_stroke = NULL;
119 shape->cached_fpartialy = false;
120 shape->cached_spartialy = false;
121 shape->fill_shp = NULL;
122 shape->stroke_shp = NULL;
124 shape->delayed_shp = false;
126 shape->approx_bbox.x0 = shape->approx_bbox.y0 = 0;
127 shape->approx_bbox.x1 = shape->approx_bbox.y1 = 0;
128 shape->cached_fctm.setIdentity();
129 shape->cached_sctm.setIdentity();
131 shape->markers = NULL;
133 shape->last_pick = NULL;
134 shape->repick_after = 0;
135 }
137 static void
138 nr_arena_shape_finalize(NRObject *object)
139 {
140 NRArenaShape *shape = (NRArenaShape *) object;
142 if (shape->fill_shp) delete shape->fill_shp;
143 if (shape->stroke_shp) delete shape->stroke_shp;
144 if (shape->cached_fill) delete shape->cached_fill;
145 if (shape->cached_stroke) delete shape->cached_stroke;
146 if (shape->fill_painter) sp_painter_free(shape->fill_painter);
147 if (shape->stroke_painter) sp_painter_free(shape->stroke_painter);
149 if (shape->style) sp_style_unref(shape->style);
150 if (shape->curve) shape->curve->unref();
152 ((NRObjectClass *) shape_parent_class)->finalize(object);
153 }
155 /**
156 * Retrieves the markers from the item
157 */
158 static NRArenaItem *
159 nr_arena_shape_children(NRArenaItem *item)
160 {
161 NRArenaShape *shape = (NRArenaShape *) item;
163 return shape->markers;
164 }
166 /**
167 * Attaches child to item, and if ref is not NULL, sets it and ref->next as
168 * the prev and next items. If ref is NULL, then it sets the item's markers
169 * as the next items.
170 */
171 static void
172 nr_arena_shape_add_child(NRArenaItem *item, NRArenaItem *child, NRArenaItem *ref)
173 {
174 NRArenaShape *shape = (NRArenaShape *) item;
176 if (!ref) {
177 shape->markers = nr_arena_item_attach(item, child, NULL, shape->markers);
178 } else {
179 ref->next = nr_arena_item_attach(item, child, ref, ref->next);
180 }
182 nr_arena_item_request_update(item, NR_ARENA_ITEM_STATE_ALL, FALSE);
183 }
185 /**
186 * Removes child from the shape. If there are no prev items in
187 * the child, it sets items' markers to the next item in the child.
188 */
189 static void
190 nr_arena_shape_remove_child(NRArenaItem *item, NRArenaItem *child)
191 {
192 NRArenaShape *shape = (NRArenaShape *) item;
194 if (child->prev) {
195 nr_arena_item_detach(item, child);
196 } else {
197 shape->markers = nr_arena_item_detach(item, child);
198 }
200 nr_arena_item_request_update(item, NR_ARENA_ITEM_STATE_ALL, FALSE);
201 }
203 /**
204 * Detaches child from item, and if there are no previous items in child, it
205 * sets item's markers to the child. It then attaches the child back onto the item.
206 * If ref is null, it sets the markers to be the next item, otherwise it uses
207 * the next/prev items in ref.
208 */
209 static void
210 nr_arena_shape_set_child_position(NRArenaItem *item, NRArenaItem *child, NRArenaItem *ref)
211 {
212 NRArenaShape *shape = (NRArenaShape *) item;
214 if (child->prev) {
215 nr_arena_item_detach(item, child);
216 } else {
217 shape->markers = nr_arena_item_detach(item, child);
218 }
220 if (!ref) {
221 shape->markers = nr_arena_item_attach(item, child, NULL, shape->markers);
222 } else {
223 ref->next = nr_arena_item_attach(item, child, ref, ref->next);
224 }
226 nr_arena_item_request_render(child);
227 }
229 void nr_arena_shape_update_stroke(NRArenaShape *shape, NRGC* gc, NRRectL *area);
230 void nr_arena_shape_update_fill(NRArenaShape *shape, NRGC *gc, NRRectL *area, bool force_shape = false);
231 void nr_arena_shape_add_bboxes(NRArenaShape* shape, Geom::OptRect &bbox);
233 /**
234 * Updates the arena shape 'item' and all of its children, including the markers.
235 */
236 static guint
237 nr_arena_shape_update(NRArenaItem *item, NRRectL *area, NRGC *gc, guint state, guint reset)
238 {
239 Geom::OptRect boundingbox;
241 NRArenaShape *shape = NR_ARENA_SHAPE(item);
243 unsigned int beststate = NR_ARENA_ITEM_STATE_ALL;
245 unsigned int newstate;
246 for (NRArenaItem *child = shape->markers; child != NULL; child = child->next) {
247 newstate = nr_arena_item_invoke_update(child, area, gc, state, reset);
248 beststate = beststate & newstate;
249 }
251 if (!(state & NR_ARENA_ITEM_STATE_RENDER)) {
252 /* We do not have to create rendering structures */
253 shape->ctm = gc->transform;
254 if (state & NR_ARENA_ITEM_STATE_BBOX) {
255 if (shape->curve) {
256 boundingbox = bounds_exact_transformed(shape->curve->get_pathvector(), gc->transform);
257 if (boundingbox) {
258 item->bbox.x0 = static_cast<NR::ICoord>(floor((*boundingbox)[0][0])); // Floor gives the coordinate in which the point resides
259 item->bbox.y0 = static_cast<NR::ICoord>(floor((*boundingbox)[1][0]));
260 item->bbox.x1 = static_cast<NR::ICoord>(ceil ((*boundingbox)[0][1])); // Ceil gives the first coordinate beyond the point
261 item->bbox.y1 = static_cast<NR::ICoord>(ceil ((*boundingbox)[1][1]));
262 } else {
263 item->bbox = NR_RECT_L_EMPTY;
264 }
265 }
266 if (beststate & NR_ARENA_ITEM_STATE_BBOX) {
267 for (NRArenaItem *child = shape->markers; child != NULL; child = child->next) {
268 nr_rect_l_union(&item->bbox, &item->bbox, &child->bbox);
269 }
270 }
271 }
272 return (state | item->state);
273 }
275 shape->delayed_shp=true;
276 shape->ctm = gc->transform;
277 boundingbox = Geom::OptRect();
279 bool outline = (NR_ARENA_ITEM(shape)->arena->rendermode == Inkscape::RENDERMODE_OUTLINE);
281 if (shape->curve) {
282 boundingbox = bounds_exact_transformed(shape->curve->get_pathvector(), gc->transform);
284 if (boundingbox && (shape->_stroke.paint.type() != NRArenaShape::Paint::NONE || outline)) {
285 float width, scale;
286 scale = gc->transform.descrim();
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 boundingbox->expandBy(width);
290 }
291 // those pesky miters, now
292 float miterMax=width*shape->_stroke.mitre_limit;
293 if ( miterMax > 0.01 ) {
294 // grunt mode. we should compute the various miters instead (one for each point on the curve)
295 boundingbox->expandBy(miterMax);
296 }
297 }
298 }
300 /// \todo just write item->bbox = boundingbox
301 if (boundingbox) {
302 shape->approx_bbox.x0 = static_cast<NR::ICoord>(floor((*boundingbox)[0][0]));
303 shape->approx_bbox.y0 = static_cast<NR::ICoord>(floor((*boundingbox)[1][0]));
304 shape->approx_bbox.x1 = static_cast<NR::ICoord>(ceil ((*boundingbox)[0][1]));
305 shape->approx_bbox.y1 = static_cast<NR::ICoord>(ceil ((*boundingbox)[1][1]));
306 } else {
307 shape->approx_bbox = NR_RECT_L_EMPTY;
308 }
309 if ( area && nr_rect_l_test_intersect_ptr(area, &shape->approx_bbox) ) shape->delayed_shp=false;
311 /* Release state data */
312 if (shape->fill_shp) {
313 delete shape->fill_shp;
314 shape->fill_shp = NULL;
315 }
316 if (shape->stroke_shp) {
317 delete shape->stroke_shp;
318 shape->stroke_shp = NULL;
319 }
320 if (shape->fill_painter) {
321 sp_painter_free(shape->fill_painter);
322 shape->fill_painter = NULL;
323 }
324 if (shape->stroke_painter) {
325 sp_painter_free(shape->stroke_painter);
326 shape->stroke_painter = NULL;
327 }
329 if (!shape->curve ||
330 !shape->style ||
331 shape->curve->is_empty() ||
332 (( shape->_fill.paint.type() == NRArenaShape::Paint::NONE ) &&
333 ( shape->_stroke.paint.type() == NRArenaShape::Paint::NONE && !outline) ))
334 {
335 item->bbox = shape->approx_bbox;
336 return NR_ARENA_ITEM_STATE_ALL;
337 }
339 /* Build state data */
340 if ( shape->delayed_shp ) {
341 item->bbox=shape->approx_bbox;
342 } else {
343 nr_arena_shape_update_stroke(shape, gc, area);
344 nr_arena_shape_update_fill(shape, gc, area);
346 boundingbox = Geom::OptRect();
347 nr_arena_shape_add_bboxes(shape, boundingbox);
349 /// \todo just write shape->approx_bbox = boundingbox
350 if (boundingbox) {
351 shape->approx_bbox.x0 = static_cast<NR::ICoord>(floor((*boundingbox)[0][0]));
352 shape->approx_bbox.y0 = static_cast<NR::ICoord>(floor((*boundingbox)[1][0]));
353 shape->approx_bbox.x1 = static_cast<NR::ICoord>(ceil ((*boundingbox)[0][1]));
354 shape->approx_bbox.y1 = static_cast<NR::ICoord>(ceil ((*boundingbox)[1][1]));
355 } else {
356 shape->approx_bbox = NR_RECT_L_EMPTY;
357 }
358 }
360 if (!boundingbox)
361 return NR_ARENA_ITEM_STATE_ALL;
363 /// \todo just write item->bbox = boundingbox
364 item->bbox.x0 = static_cast<NR::ICoord>(floor((*boundingbox)[0][0]));
365 item->bbox.y0 = static_cast<NR::ICoord>(floor((*boundingbox)[1][0]));
366 item->bbox.x1 = static_cast<NR::ICoord>(ceil ((*boundingbox)[0][1]));
367 item->bbox.y1 = static_cast<NR::ICoord>(ceil ((*boundingbox)[1][1]));
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 gc->transform, 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 gc->transform, 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(Geom::Matrix p) {
405 Geom::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 Geom::Matrix isom = tp*p; // A^T * A = adjunct?
414 // Is the adjunct nearly an identity function?
415 if (isom.isTranslation(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 /* returns true if the pathvector has a region that needs fill.
431 * is for optimizing purposes, so should be fast and can falsely return true.
432 * CANNOT falsely return false. */
433 static bool has_inner_area(Geom::PathVector const & pv) {
434 // return false for the cases where there is surely no region to be filled
435 if (pv.empty())
436 return false;
438 if ( (pv.size() == 1) && (pv.front().size() <= 1) ) {
439 // vector has only one path with only one segment, see if that's a non-curve segment: that would mean no internal region
440 if ( is_straight_curve(pv.front().front()) )
441 {
442 return false;
443 }
444 }
446 return true; //too costly to see if it has region to be filled, so return true.
447 }
449 /** force_shape is used for clipping paths, when we need the shape for clipping even if it's not filled */
450 void
451 nr_arena_shape_update_fill(NRArenaShape *shape, NRGC *gc, NRRectL *area, bool force_shape)
452 {
453 if ((shape->_fill.paint.type() != NRArenaShape::Paint::NONE || force_shape) &&
454 has_inner_area(shape->curve->get_pathvector()) ) {
456 Geom::Matrix cached_to_new = Geom::identity();
457 int isometry = 0;
458 if ( shape->cached_fill ) {
459 if (shape->cached_fctm == gc->transform) {
460 isometry = 2; // identity
461 } else {
462 cached_to_new = shape->cached_fctm.inverse() * gc->transform;
463 isometry = matrix_is_isometry(cached_to_new);
464 }
465 if (0 != isometry && !is_inner_area(shape->cached_farea, *area))
466 isometry = 0;
467 }
468 if ( isometry == 0 ) {
469 if ( shape->cached_fill == NULL ) shape->cached_fill=new Shape;
470 shape->cached_fill->Reset();
472 Path* thePath=new Path;
473 Shape* theShape=new Shape;
474 {
475 Geom::Matrix tempMat(gc->transform);
476 thePath->LoadPathVector(shape->curve->get_pathvector(), tempMat, true);
477 }
479 if (is_inner_area(*area, NR_ARENA_ITEM(shape)->bbox)) {
480 thePath->Convert(1.0);
481 shape->cached_fpartialy = false;
482 } else {
483 thePath->Convert(area, 1.0);
484 shape->cached_fpartialy = true;
485 }
487 thePath->Fill(theShape, 0);
489 if ( shape->_fill.rule == NRArenaShape::EVEN_ODD ) {
490 shape->cached_fill->ConvertToShape(theShape, fill_oddEven);
491 // alternatively, this speeds up rendering of oddeven shapes but disables AA :(
492 //shape->cached_fill->Copy(theShape);
493 } else {
494 shape->cached_fill->ConvertToShape(theShape, fill_nonZero);
495 }
496 shape->cached_fctm=gc->transform;
497 shape->cached_farea = *area;
498 delete theShape;
499 delete thePath;
500 if ( shape->fill_shp == NULL )
501 shape->fill_shp = new Shape;
503 shape->fill_shp->Copy(shape->cached_fill);
505 } else if ( 2 == isometry ) {
506 if ( shape->fill_shp == NULL ) {
507 shape->fill_shp = new Shape;
508 shape->fill_shp->Copy(shape->cached_fill);
509 }
510 } else {
512 if ( shape->fill_shp == NULL )
513 shape->fill_shp = new Shape;
515 shape->fill_shp->Reset(shape->cached_fill->numberOfPoints(),
516 shape->cached_fill->numberOfEdges());
517 for (int i = 0; i < shape->cached_fill->numberOfPoints(); i++)
518 shape->fill_shp->AddPoint(to_2geom(shape->cached_fill->getPoint(i).x) * cached_to_new);
519 if ( isometry == 1 ) {
520 for (int i = 0; i < shape->cached_fill->numberOfEdges(); i++)
521 shape->fill_shp->AddEdge(shape->cached_fill->getEdge(i).st,
522 shape->cached_fill->getEdge(i).en);
523 } else if ( isometry == -1 ) { // need to flip poly.
524 for (int i = 0; i < shape->cached_fill->numberOfEdges(); i++)
525 shape->fill_shp->AddEdge(shape->cached_fill->getEdge(i).en,
526 shape->cached_fill->getEdge(i).st);
527 }
528 shape->fill_shp->ForceToPolygon();
529 shape->fill_shp->needPointsSorting();
530 shape->fill_shp->needEdgesSorting();
531 }
532 shape->delayed_shp |= shape->cached_fpartialy;
533 }
534 }
536 void
537 nr_arena_shape_update_stroke(NRArenaShape *shape,NRGC* gc, NRRectL *area)
538 {
539 SPStyle* style = shape->style;
541 float const scale = gc->transform.descrim();
543 bool outline = (NR_ARENA_ITEM(shape)->arena->rendermode == Inkscape::RENDERMODE_OUTLINE);
545 if (outline) {
546 // cairo does not need the livarot path for rendering
547 return;
548 }
550 // after switching normal stroke rendering to cairo too, optimize this: lower tolerance, disregard dashes
551 // (since it will only be used for picking, not for rendering)
553 if (outline ||
554 ((shape->_stroke.paint.type() != NRArenaShape::Paint::NONE) &&
555 ( fabs(shape->_stroke.width * scale) > 0.01 ))) { // sinon c'est 0=oon veut pas de bord
557 float style_width = MAX(0.125, shape->_stroke.width * scale);
558 float width;
559 if (outline) {
560 width = 0.5; // 1 pixel wide, independent of zoom
561 } else {
562 width = style_width;
563 }
565 Geom::Matrix cached_to_new = Geom::identity();
567 int isometry = 0;
568 if ( shape->cached_stroke ) {
569 if (shape->cached_sctm == gc->transform) {
570 isometry = 2; // identity
571 } else {
572 cached_to_new = shape->cached_sctm.inverse() * gc->transform;
573 isometry = matrix_is_isometry(cached_to_new);
574 }
575 if (0 != isometry && !is_inner_area(shape->cached_sarea, *area))
576 isometry = 0;
577 if (0 != isometry && width != shape->cached_width) {
578 // if this happens without setting style, we have just switched to outline or back
579 isometry = 0;
580 }
581 }
583 if ( isometry == 0 ) {
584 if ( shape->cached_stroke == NULL ) shape->cached_stroke=new Shape;
585 shape->cached_stroke->Reset();
586 Path* thePath = new Path;
587 Shape* theShape = new Shape;
588 {
589 Geom::Matrix tempMat( gc->transform );
590 thePath->LoadPathVector(shape->curve->get_pathvector(), tempMat, true);
591 }
593 // add some padding to the rendering area, so clipped path does not go into a render area
594 NRRectL padded_area = *area;
595 padded_area.x0 -= (NR::ICoord)width;
596 padded_area.x1 += (NR::ICoord)width;
597 padded_area.y0 -= (NR::ICoord)width;
598 padded_area.y1 += (NR::ICoord)width;
599 if ((style->stroke_dash.n_dash && !outline) || is_inner_area(padded_area, NR_ARENA_ITEM(shape)->bbox)) {
600 thePath->Convert((outline) ? 4.0 : 1.0);
601 shape->cached_spartialy = false;
602 }
603 else {
604 thePath->Convert(&padded_area, (outline) ? 4.0 : 1.0);
605 shape->cached_spartialy = true;
606 }
608 if (style->stroke_dash.n_dash && !outline) {
609 thePath->DashPolylineFromStyle(style, scale, 1.0);
610 }
612 ButtType butt=butt_straight;
613 switch (shape->_stroke.cap) {
614 case NRArenaShape::BUTT_CAP:
615 butt = butt_straight;
616 break;
617 case NRArenaShape::ROUND_CAP:
618 butt = butt_round;
619 break;
620 case NRArenaShape::SQUARE_CAP:
621 butt = butt_square;
622 break;
623 }
624 JoinType join=join_straight;
625 switch (shape->_stroke.join) {
626 case NRArenaShape::MITRE_JOIN:
627 join = join_pointy;
628 break;
629 case NRArenaShape::ROUND_JOIN:
630 join = join_round;
631 break;
632 case NRArenaShape::BEVEL_JOIN:
633 join = join_straight;
634 break;
635 }
637 if (outline) {
638 butt = butt_straight;
639 join = join_straight;
640 }
642 thePath->Stroke(theShape, false, 0.5*width, join, butt,
643 0.5*width*shape->_stroke.mitre_limit);
646 if (outline) {
647 // speeds it up, but uses evenodd for the stroke shape (which does not matter for 1-pixel wide outline)
648 shape->cached_stroke->Copy(theShape);
649 } else {
650 shape->cached_stroke->ConvertToShape(theShape, fill_nonZero);
651 }
653 shape->cached_width = width;
655 shape->cached_sctm=gc->transform;
656 shape->cached_sarea = *area;
657 delete thePath;
658 delete theShape;
659 if ( shape->stroke_shp == NULL ) shape->stroke_shp=new Shape;
661 shape->stroke_shp->Copy(shape->cached_stroke);
663 } else if ( 2 == isometry ) {
664 if ( shape->stroke_shp == NULL ) {
665 shape->stroke_shp=new Shape;
666 shape->stroke_shp->Copy(shape->cached_stroke);
667 }
668 } else {
669 if ( shape->stroke_shp == NULL )
670 shape->stroke_shp=new Shape;
671 shape->stroke_shp->Reset(shape->cached_stroke->numberOfPoints(), shape->cached_stroke->numberOfEdges());
672 for (int i = 0; i < shape->cached_stroke->numberOfPoints(); i++)
673 shape->stroke_shp->AddPoint(to_2geom(shape->cached_stroke->getPoint(i).x) * cached_to_new);
674 if ( isometry == 1 ) {
675 for (int i = 0; i < shape->cached_stroke->numberOfEdges(); i++)
676 shape->stroke_shp->AddEdge(shape->cached_stroke->getEdge(i).st,
677 shape->cached_stroke->getEdge(i).en);
678 } else if ( isometry == -1 ) {
679 for (int i = 0; i < shape->cached_stroke->numberOfEdges(); i++)
680 shape->stroke_shp->AddEdge(shape->cached_stroke->getEdge(i).en,
681 shape->cached_stroke->getEdge(i).st);
682 }
683 shape->stroke_shp->ForceToPolygon();
684 shape->stroke_shp->needPointsSorting();
685 shape->stroke_shp->needEdgesSorting();
686 }
687 shape->delayed_shp |= shape->cached_spartialy;
688 }
689 }
692 void
693 nr_arena_shape_add_bboxes(NRArenaShape* shape, Geom::OptRect &bbox)
694 {
695 /* TODO: are these two if's mutually exclusive? ( i.e. "shape->stroke_shp <=> !shape->fill_shp" )
696 * if so, then this can be written much more compact ! */
698 if ( shape->stroke_shp ) {
699 Shape *larger = shape->stroke_shp;
700 larger->CalcBBox();
701 larger->leftX = floor(larger->leftX);
702 larger->rightX = ceil(larger->rightX);
703 larger->topY = floor(larger->topY);
704 larger->bottomY = ceil(larger->bottomY);
705 Geom::Rect stroke_bbox( Geom::Interval(larger->leftX, larger->rightX),
706 Geom::Interval(larger->topY, larger->bottomY) );
707 bbox.unionWith(stroke_bbox);
708 }
710 if ( shape->fill_shp ) {
711 Shape *larger = shape->fill_shp;
712 larger->CalcBBox();
713 larger->leftX = floor(larger->leftX);
714 larger->rightX = ceil(larger->rightX);
715 larger->topY = floor(larger->topY);
716 larger->bottomY = ceil(larger->bottomY);
717 Geom::Rect fill_bbox( Geom::Interval(larger->leftX, larger->rightX),
718 Geom::Interval(larger->topY, larger->bottomY) );
719 bbox.unionWith(fill_bbox);
720 }
721 }
723 // cairo outline rendering:
724 static unsigned int
725 cairo_arena_shape_render_outline(cairo_t *ct, NRArenaItem *item, Geom::OptRect area)
726 {
727 NRArenaShape *shape = NR_ARENA_SHAPE(item);
729 if (!ct)
730 return item->state;
732 guint32 rgba = NR_ARENA_ITEM(shape)->arena->outlinecolor;
733 // FIXME: we use RGBA buffers but cairo writes BGRA (on i386), so we must cheat
734 // by setting color channels in the "wrong" order
735 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));
737 cairo_set_line_width(ct, 0.5);
738 cairo_set_tolerance(ct, 1.25); // low quality, but good enough for outline mode
739 cairo_new_path(ct);
741 feed_pathvector_to_cairo (ct, shape->curve->get_pathvector(), shape->ctm, area, true, 0);
743 cairo_stroke(ct);
745 return item->state;
746 }
748 // cairo stroke rendering (flat color only so far!):
749 // works on canvas, but wrongs the colors in nonpremul buffers: icons and png export
750 // (need to switch them to premul before this can be enabled)
751 void
752 cairo_arena_shape_render_stroke(NRArenaItem *item, NRRectL *area, NRPixBlock *pb)
753 {
754 NRArenaShape *shape = NR_ARENA_SHAPE(item);
755 SPStyle const *style = shape->style;
757 float const scale = shape->ctm.descrim();
759 if (fabs(shape->_stroke.width * scale) < 0.01)
760 return;
762 cairo_t *ct = nr_create_cairo_context (area, pb);
764 if (!ct)
765 return;
767 guint32 rgba;
768 if ( item->render_opacity ) {
769 rgba = shape->_stroke.paint.color().toRGBA32( shape->_stroke.opacity *
770 SP_SCALE24_TO_FLOAT(style->opacity.value) );
771 } else {
772 rgba = shape->_stroke.paint.color().toRGBA32( shape->_stroke.opacity );
773 }
775 // FIXME: we use RGBA buffers but cairo writes BGRA (on i386), so we must cheat
776 // by setting color channels in the "wrong" order
777 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));
779 float style_width = MAX(0.125, shape->_stroke.width * scale);
780 cairo_set_line_width(ct, style_width);
782 switch (shape->_stroke.cap) {
783 case NRArenaShape::BUTT_CAP:
784 cairo_set_line_cap(ct, CAIRO_LINE_CAP_BUTT);
785 break;
786 case NRArenaShape::ROUND_CAP:
787 cairo_set_line_cap(ct, CAIRO_LINE_CAP_ROUND);
788 break;
789 case NRArenaShape::SQUARE_CAP:
790 cairo_set_line_cap(ct, CAIRO_LINE_CAP_SQUARE);
791 break;
792 }
793 switch (shape->_stroke.join) {
794 case NRArenaShape::MITRE_JOIN:
795 cairo_set_line_join(ct, CAIRO_LINE_JOIN_MITER);
796 break;
797 case NRArenaShape::ROUND_JOIN:
798 cairo_set_line_join(ct, CAIRO_LINE_JOIN_ROUND);
799 break;
800 case NRArenaShape::BEVEL_JOIN:
801 cairo_set_line_join(ct, CAIRO_LINE_JOIN_BEVEL);
802 break;
803 }
805 cairo_set_miter_limit (ct, style->stroke_miterlimit.value);
807 if (style->stroke_dash.n_dash) {
808 NRVpathDash dash;
809 dash.offset = style->stroke_dash.offset * scale;
810 dash.n_dash = style->stroke_dash.n_dash;
811 dash.dash = g_new(double, dash.n_dash);
812 for (int i = 0; i < dash.n_dash; i++) {
813 dash.dash[i] = style->stroke_dash.dash[i] * scale;
814 }
815 cairo_set_dash (ct, dash.dash, dash.n_dash, dash.offset);
816 g_free(dash.dash);
817 }
819 cairo_set_tolerance(ct, 0.1);
820 cairo_new_path(ct);
822 feed_pathvector_to_cairo (ct, shape->curve->get_pathvector(), shape->ctm, to_2geom(area->upgrade()), true, style_width);
824 cairo_stroke(ct);
826 cairo_surface_t *cst = cairo_get_target(ct);
827 cairo_destroy (ct);
828 cairo_surface_finish (cst);
829 cairo_surface_destroy (cst);
831 pb->empty = FALSE;
832 }
834 /**
835 * Renders the item. Markers are just composed into the parent buffer.
836 */
837 static unsigned int
838 nr_arena_shape_render(cairo_t *ct, NRArenaItem *item, NRRectL *area, NRPixBlock *pb, unsigned int flags)
839 {
840 NRArenaShape *shape = NR_ARENA_SHAPE(item);
842 if (!shape->curve) return item->state;
843 if (!shape->style) return item->state;
845 bool outline = (NR_ARENA_ITEM(shape)->arena->rendermode == Inkscape::RENDERMODE_OUTLINE);
846 bool print_colors_preview = (NR_ARENA_ITEM(shape)->arena->rendermode == Inkscape::RENDERMODE_PRINT_COLORS_PREVIEW);
848 if (outline) { // cairo outline rendering
850 pb->empty = FALSE;
851 unsigned int ret = cairo_arena_shape_render_outline (ct, item, to_2geom((&pb->area)->upgrade()));
852 if (ret & NR_ARENA_ITEM_STATE_INVALID) return ret;
854 } else {
856 if ( shape->delayed_shp ) {
857 if ( nr_rect_l_test_intersect_ptr(area, &item->bbox) ) {
858 NRGC tempGC(NULL);
859 tempGC.transform=shape->ctm;
860 shape->delayed_shp = false;
861 nr_arena_shape_update_stroke(shape,&tempGC,&pb->visible_area);
862 nr_arena_shape_update_fill(shape,&tempGC,&pb->visible_area);
863 /* NRRect bbox;
864 bbox.x0 = bbox.y0 = bbox.x1 = bbox.y1 = 0.0;
865 nr_arena_shape_add_bboxes(shape,bbox);
866 item->bbox.x0 = (gint32)(bbox.x0 - 1.0F);
867 item->bbox.y0 = (gint32)(bbox.y0 - 1.0F);
868 item->bbox.x1 = (gint32)(bbox.x1 + 1.0F);
869 item->bbox.y1 = (gint32)(bbox.y1 + 1.0F);
870 shape->approx_bbox=item->bbox;*/
871 } else {
872 return item->state;
873 }
874 }
876 SPStyle const *style = shape->style;
878 if (shape->fill_shp) {
879 NRPixBlock m;
880 guint32 rgba;
882 nr_pixblock_setup_fast(&m, NR_PIXBLOCK_MODE_A8, area->x0, area->y0, area->x1, area->y1, TRUE);
884 // if memory allocation failed, abort render
885 if (m.size != NR_PIXBLOCK_SIZE_TINY && m.data.px == NULL) {
886 nr_pixblock_release (&m);
887 return (item->state);
888 }
890 m.visible_area = pb->visible_area;
891 nr_pixblock_render_shape_mask_or(m,shape->fill_shp);
892 m.empty = FALSE;
894 if (shape->_fill.paint.type() == NRArenaShape::Paint::NONE) {
895 // do not render fill in any way
896 } else if (shape->_fill.paint.type() == NRArenaShape::Paint::COLOR) {
898 const SPColor* fill_color = &shape->_fill.paint.color();
899 if ( item->render_opacity ) {
900 rgba = fill_color->toRGBA32( shape->_fill.opacity *
901 SP_SCALE24_TO_FLOAT(style->opacity.value) );
902 } else {
903 rgba = fill_color->toRGBA32( shape->_fill.opacity );
904 }
906 if (print_colors_preview)
907 nr_arena_separate_color_plates(&rgba);
909 nr_blit_pixblock_mask_rgba32(pb, &m, rgba);
910 pb->empty = FALSE;
911 } else if (shape->_fill.paint.type() == NRArenaShape::Paint::SERVER) {
912 if (shape->fill_painter) {
913 nr_arena_render_paintserver_fill(pb, area, shape->fill_painter, shape->_fill.opacity, &m);
914 }
915 }
917 nr_pixblock_release(&m);
918 }
920 if (shape->stroke_shp && shape->_stroke.paint.type() == NRArenaShape::Paint::COLOR) {
922 // cairo_arena_shape_render_stroke(item, area, pb);
924 guint32 rgba;
925 NRPixBlock m;
927 nr_pixblock_setup_fast(&m, NR_PIXBLOCK_MODE_A8, area->x0, area->y0, area->x1, area->y1, TRUE);
929 // if memory allocation failed, abort render
930 if (m.size != NR_PIXBLOCK_SIZE_TINY && m.data.px == NULL) {
931 nr_pixblock_release (&m);
932 return (item->state);
933 }
935 m.visible_area = pb->visible_area;
936 nr_pixblock_render_shape_mask_or(m, shape->stroke_shp);
937 m.empty = FALSE;
939 const SPColor* stroke_color = &shape->_stroke.paint.color();
940 if ( item->render_opacity ) {
941 rgba = stroke_color->toRGBA32( shape->_stroke.opacity *
942 SP_SCALE24_TO_FLOAT(style->opacity.value) );
943 } else {
944 rgba = stroke_color->toRGBA32( shape->_stroke.opacity );
945 }
947 if (print_colors_preview)
948 nr_arena_separate_color_plates(&rgba);
950 nr_blit_pixblock_mask_rgba32(pb, &m, rgba);
951 pb->empty = FALSE;
953 nr_pixblock_release(&m);
955 } else if (shape->stroke_shp && shape->_stroke.paint.type() == NRArenaShape::Paint::SERVER) {
957 NRPixBlock m;
959 nr_pixblock_setup_fast(&m, NR_PIXBLOCK_MODE_A8, area->x0, area->y0, area->x1, area->y1, TRUE);
961 // if memory allocation failed, abort render
962 if (m.size != NR_PIXBLOCK_SIZE_TINY && m.data.px == NULL) {
963 nr_pixblock_release (&m);
964 return (item->state);
965 }
967 m.visible_area = pb->visible_area;
968 nr_pixblock_render_shape_mask_or(m, shape->stroke_shp);
969 m.empty = FALSE;
971 if (shape->stroke_painter) {
972 nr_arena_render_paintserver_fill(pb, area, shape->stroke_painter, shape->_stroke.opacity, &m);
973 }
975 nr_pixblock_release(&m);
976 }
978 } // non-cairo non-outline branch
980 /* Render markers into parent buffer */
981 for (NRArenaItem *child = shape->markers; child != NULL; child = child->next) {
982 unsigned int ret = nr_arena_item_invoke_render(ct, child, area, pb, flags);
983 if (ret & NR_ARENA_ITEM_STATE_INVALID) return ret;
984 }
986 return item->state;
987 }
990 // cairo clipping: this basically works except for the stride-must-be-divisible-by-4 cairo bug;
991 // reenable this when the bug is fixed and remove the rest of this function
992 // TODO
993 #if defined(DEADCODE) && !defined(DEADCODE)
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_pathvector_to_cairo (ct, shape->curve->get_pathvector(), 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 }
1022 #endif //defined(DEADCODE) && !defined(DEADCODE)
1025 static guint
1026 nr_arena_shape_clip(NRArenaItem *item, NRRectL *area, NRPixBlock *pb)
1027 {
1028 //return cairo_arena_shape_clip(item, area, pb);
1030 NRArenaShape *shape = NR_ARENA_SHAPE(item);
1031 if (!shape->curve) return item->state;
1033 if ( shape->delayed_shp || shape->fill_shp == NULL) { // we need a fill shape no matter what
1034 if ( nr_rect_l_test_intersect_ptr(area, &item->bbox) ) {
1035 NRGC tempGC(NULL);
1036 tempGC.transform=shape->ctm;
1037 shape->delayed_shp = false;
1038 nr_arena_shape_update_fill(shape, &tempGC, &pb->visible_area, true);
1039 } else {
1040 return item->state;
1041 }
1042 }
1044 if ( shape->fill_shp ) {
1045 NRPixBlock m;
1047 /* fixme: We can OR in one step (Lauris) */
1048 nr_pixblock_setup_fast(&m, NR_PIXBLOCK_MODE_A8, area->x0, area->y0, area->x1, area->y1, TRUE);
1050 // if memory allocation failed, abort
1051 if (m.size != NR_PIXBLOCK_SIZE_TINY && m.data.px == NULL) {
1052 nr_pixblock_release (&m);
1053 return (item->state);
1054 }
1056 m.visible_area = pb->visible_area;
1057 nr_pixblock_render_shape_mask_or(m,shape->fill_shp);
1059 for (int y = area->y0; y < area->y1; y++) {
1060 unsigned char *s, *d;
1061 s = NR_PIXBLOCK_PX(&m) + (y - area->y0) * m.rs;
1062 d = NR_PIXBLOCK_PX(pb) + (y - area->y0) * pb->rs;
1063 for (int x = area->x0; x < area->x1; x++) {
1064 *d = NR_COMPOSEA_111(*s, *d);
1065 d ++;
1066 s ++;
1067 }
1068 }
1069 nr_pixblock_release(&m);
1070 pb->empty = FALSE;
1071 }
1073 return item->state;
1074 }
1076 static NRArenaItem *
1077 nr_arena_shape_pick(NRArenaItem *item, Geom::Point p, double delta, unsigned int /*sticky*/)
1078 {
1079 NRArenaShape *shape = NR_ARENA_SHAPE(item);
1081 if (shape->repick_after > 0)
1082 shape->repick_after--;
1084 if (shape->repick_after > 0) // we are a slow, huge path. skip this pick, returning what was returned last time
1085 return shape->last_pick;
1087 if (!shape->curve) return NULL;
1088 if (!shape->style) return NULL;
1090 bool outline = (NR_ARENA_ITEM(shape)->arena->rendermode == Inkscape::RENDERMODE_OUTLINE);
1092 if (SP_SCALE24_TO_FLOAT(shape->style->opacity.value) == 0 && !outline)
1093 // fully transparent, no pick unless outline mode
1094 return NULL;
1096 GTimeVal tstart, tfinish;
1097 g_get_current_time (&tstart);
1099 double width;
1100 if (outline) {
1101 width = 0.5;
1102 } else if (shape->_stroke.paint.type() != NRArenaShape::Paint::NONE && shape->_stroke.opacity > 1e-3) {
1103 float const scale = shape->ctm.descrim();
1104 width = MAX(0.125, shape->_stroke.width * scale) / 2;
1105 } else {
1106 width = 0;
1107 }
1109 double dist = NR_HUGE;
1110 int wind = 0;
1111 bool needfill = (shape->_fill.paint.type() != NRArenaShape::Paint::NONE
1112 && shape->_fill.opacity > 1e-3 && !outline);
1114 if (item->arena->canvasarena) {
1115 Geom::Rect viewbox = item->arena->canvasarena->item.canvas->getViewbox();
1116 viewbox.expandBy (width);
1117 pathv_matrix_point_bbox_wind_distance(shape->curve->get_pathvector(), shape->ctm, p, NULL, needfill? &wind : NULL, &dist, 0.5, &viewbox);
1118 } else {
1119 pathv_matrix_point_bbox_wind_distance(shape->curve->get_pathvector(), shape->ctm, p, NULL, needfill? &wind : NULL, &dist, 0.5, NULL);
1120 }
1122 g_get_current_time (&tfinish);
1123 glong this_pick = (tfinish.tv_sec - tstart.tv_sec) * 1000000 + (tfinish.tv_usec - tstart.tv_usec);
1124 //g_print ("pick time %lu\n", this_pick);
1126 if (this_pick > 10000) { // slow picking, remember to skip several new picks
1127 shape->repick_after = this_pick / 5000;
1128 }
1130 // covered by fill?
1131 if (needfill) {
1132 if (!shape->style->fill_rule.computed) {
1133 if (wind != 0) {
1134 shape->last_pick = item;
1135 return item;
1136 }
1137 } else {
1138 if (wind & 0x1) {
1139 shape->last_pick = item;
1140 return item;
1141 }
1142 }
1143 }
1145 // close to the edge, as defined by strokewidth and delta?
1146 // this ignores dashing (as if the stroke is solid) and always works as if caps are round
1147 if (needfill || width > 0) { // if either fill or stroke visible,
1148 if ((dist - width) < delta) {
1149 shape->last_pick = item;
1150 return item;
1151 }
1152 }
1154 // if not picked on the shape itself, try its markers
1155 for (NRArenaItem *child = shape->markers; child != NULL; child = child->next) {
1156 NRArenaItem *ret = nr_arena_item_invoke_pick(child, p, delta, 0);
1157 if (ret) {
1158 shape->last_pick = item;
1159 return item;
1160 }
1161 }
1163 shape->last_pick = NULL;
1164 return NULL;
1165 }
1167 /**
1168 *
1169 * Requests a render of the shape, then if the shape is already a curve it
1170 * unrefs the old curve; if the new curve is valid it creates a copy of the
1171 * curve and adds it to the shape. Finally, it requests an update of the
1172 * arena for the shape.
1173 */
1174 void nr_arena_shape_set_path(NRArenaShape *shape, SPCurve *curve,bool justTrans)
1175 {
1176 g_return_if_fail(shape != NULL);
1177 g_return_if_fail(NR_IS_ARENA_SHAPE(shape));
1179 if ( justTrans == false ) {
1180 // dirty cached versions
1181 if ( shape->cached_fill ) {
1182 delete shape->cached_fill;
1183 shape->cached_fill=NULL;
1184 }
1185 if ( shape->cached_stroke ) {
1186 delete shape->cached_stroke;
1187 shape->cached_stroke=NULL;
1188 }
1189 }
1191 nr_arena_item_request_render(NR_ARENA_ITEM(shape));
1193 if (shape->curve) {
1194 shape->curve->unref();
1195 shape->curve = NULL;
1196 }
1198 if (curve) {
1199 shape->curve = curve;
1200 curve->ref();
1201 }
1203 nr_arena_item_request_update(NR_ARENA_ITEM(shape), NR_ARENA_ITEM_STATE_ALL, FALSE);
1204 }
1206 void NRArenaShape::setFill(SPPaintServer *server) {
1207 _fill.paint.set(server);
1208 _invalidateCachedFill();
1209 }
1211 void NRArenaShape::setFill(SPColor const &color) {
1212 _fill.paint.set(color);
1213 _invalidateCachedFill();
1214 }
1216 void NRArenaShape::setFillOpacity(double opacity) {
1217 _fill.opacity = opacity;
1218 _invalidateCachedFill();
1219 }
1221 void NRArenaShape::setFillRule(NRArenaShape::FillRule rule) {
1222 _fill.rule = rule;
1223 _invalidateCachedFill();
1224 }
1226 void NRArenaShape::setStroke(SPPaintServer *server) {
1227 _stroke.paint.set(server);
1228 _invalidateCachedStroke();
1229 }
1231 void NRArenaShape::setStroke(SPColor const &color) {
1232 _stroke.paint.set(color);
1233 _invalidateCachedStroke();
1234 }
1236 void NRArenaShape::setStrokeOpacity(double opacity) {
1237 _stroke.opacity = opacity;
1238 _invalidateCachedStroke();
1239 }
1241 void NRArenaShape::setStrokeWidth(double width) {
1242 _stroke.width = width;
1243 _invalidateCachedStroke();
1244 }
1246 void NRArenaShape::setMitreLimit(double limit) {
1247 _stroke.mitre_limit = limit;
1248 _invalidateCachedStroke();
1249 }
1251 void NRArenaShape::setLineCap(NRArenaShape::CapType cap) {
1252 _stroke.cap = cap;
1253 _invalidateCachedStroke();
1254 }
1256 void NRArenaShape::setLineJoin(NRArenaShape::JoinType join) {
1257 _stroke.join = join;
1258 _invalidateCachedStroke();
1259 }
1261 /** nr_arena_shape_set_style
1262 *
1263 * Unrefs any existing style and ref's to the given one, then requests an update of the arena
1264 */
1265 void
1266 nr_arena_shape_set_style(NRArenaShape *shape, SPStyle *style)
1267 {
1268 g_return_if_fail(shape != NULL);
1269 g_return_if_fail(NR_IS_ARENA_SHAPE(shape));
1271 if (style) sp_style_ref(style);
1272 if (shape->style) sp_style_unref(shape->style);
1273 shape->style = style;
1275 if ( style->fill.isPaintserver() ) {
1276 shape->setFill(style->getFillPaintServer());
1277 } else if ( style->fill.isColor() ) {
1278 shape->setFill(style->fill.value.color);
1279 } else if ( style->fill.isNone() ) {
1280 shape->setFill(NULL);
1281 } else {
1282 g_assert_not_reached();
1283 }
1284 shape->setFillOpacity(SP_SCALE24_TO_FLOAT(style->fill_opacity.value));
1285 switch (style->fill_rule.computed) {
1286 case SP_WIND_RULE_EVENODD: {
1287 shape->setFillRule(NRArenaShape::EVEN_ODD);
1288 break;
1289 }
1290 case SP_WIND_RULE_NONZERO: {
1291 shape->setFillRule(NRArenaShape::NONZERO);
1292 break;
1293 }
1294 default: {
1295 g_assert_not_reached();
1296 }
1297 }
1299 if ( style->stroke.isPaintserver() ) {
1300 shape->setStroke(style->getStrokePaintServer());
1301 } else if ( style->stroke.isColor() ) {
1302 shape->setStroke(style->stroke.value.color);
1303 } else if ( style->stroke.isNone() ) {
1304 shape->setStroke(NULL);
1305 } else {
1306 g_assert_not_reached();
1307 }
1308 shape->setStrokeWidth(style->stroke_width.computed);
1309 shape->setStrokeOpacity(SP_SCALE24_TO_FLOAT(style->stroke_opacity.value));
1310 switch (style->stroke_linecap.computed) {
1311 case SP_STROKE_LINECAP_ROUND: {
1312 shape->setLineCap(NRArenaShape::ROUND_CAP);
1313 break;
1314 }
1315 case SP_STROKE_LINECAP_SQUARE: {
1316 shape->setLineCap(NRArenaShape::SQUARE_CAP);
1317 break;
1318 }
1319 case SP_STROKE_LINECAP_BUTT: {
1320 shape->setLineCap(NRArenaShape::BUTT_CAP);
1321 break;
1322 }
1323 default: {
1324 g_assert_not_reached();
1325 }
1326 }
1327 switch (style->stroke_linejoin.computed) {
1328 case SP_STROKE_LINEJOIN_ROUND: {
1329 shape->setLineJoin(NRArenaShape::ROUND_JOIN);
1330 break;
1331 }
1332 case SP_STROKE_LINEJOIN_BEVEL: {
1333 shape->setLineJoin(NRArenaShape::BEVEL_JOIN);
1334 break;
1335 }
1336 case SP_STROKE_LINEJOIN_MITER: {
1337 shape->setLineJoin(NRArenaShape::MITRE_JOIN);
1338 break;
1339 }
1340 default: {
1341 g_assert_not_reached();
1342 }
1343 }
1344 shape->setMitreLimit(style->stroke_miterlimit.value);
1346 //if shape has a filter
1347 if (style->filter.set && style->getFilter()) {
1348 if (!shape->filter) {
1349 int primitives = sp_filter_primitive_count(SP_FILTER(style->getFilter()));
1350 shape->filter = new Inkscape::Filters::Filter(primitives);
1351 }
1352 sp_filter_build_renderer(SP_FILTER(style->getFilter()), shape->filter);
1353 } else {
1354 //no filter set for this shape
1355 delete shape->filter;
1356 shape->filter = NULL;
1357 }
1359 nr_arena_item_request_update(shape, NR_ARENA_ITEM_STATE_ALL, FALSE);
1360 }
1362 void
1363 nr_arena_shape_set_paintbox(NRArenaShape *shape, NRRect const *pbox)
1364 {
1365 g_return_if_fail(shape != NULL);
1366 g_return_if_fail(NR_IS_ARENA_SHAPE(shape));
1367 g_return_if_fail(pbox != NULL);
1369 if ((pbox->x0 < pbox->x1) && (pbox->y0 < pbox->y1)) {
1370 shape->paintbox = *pbox;
1371 } else {
1372 /* fixme: We kill warning, although not sure what to do here (Lauris) */
1373 shape->paintbox.x0 = shape->paintbox.y0 = 0.0F;
1374 shape->paintbox.x1 = shape->paintbox.y1 = 256.0F;
1375 }
1377 nr_arena_item_request_update(shape, NR_ARENA_ITEM_STATE_ALL, FALSE);
1378 }
1380 void NRArenaShape::setPaintBox(Geom::Rect const &pbox)
1381 {
1382 paintbox.x0 = pbox.min()[Geom::X];
1383 paintbox.y0 = pbox.min()[Geom::Y];
1384 paintbox.x1 = pbox.max()[Geom::X];
1385 paintbox.y1 = pbox.max()[Geom::Y];
1387 nr_arena_item_request_update(this, NR_ARENA_ITEM_STATE_ALL, FALSE);
1388 }
1390 static void
1391 shape_run_A8_OR(raster_info &dest,void */*data*/,int st,float vst,int en,float ven)
1392 {
1393 if ( st >= en ) return;
1394 if ( vst < 0 ) vst=0;
1395 if ( vst > 1 ) vst=1;
1396 if ( ven < 0 ) ven=0;
1397 if ( ven > 1 ) ven=1;
1398 float sv=vst;
1399 float dv=ven-vst;
1400 int len=en-st;
1401 unsigned char* d=(unsigned char*)dest.buffer;
1402 d+=(st-dest.startPix);
1403 if ( fabs(dv) < 0.001 ) {
1404 if ( vst > 0.999 ) {
1405 /* Simple copy */
1406 while (len > 0) {
1407 d[0] = 255;
1408 d += 1;
1409 len -= 1;
1410 }
1411 } else {
1412 sv*=256;
1413 unsigned int c0_24=(int)sv;
1414 c0_24&=0xFF;
1415 while (len > 0) {
1416 /* Draw */
1417 d[0] = NR_COMPOSEA_111(c0_24,d[0]);
1418 d += 1;
1419 len -= 1;
1420 }
1421 }
1422 } else {
1423 if ( en <= st+1 ) {
1424 sv=0.5*(vst+ven);
1425 sv*=256;
1426 unsigned int c0_24=(int)sv;
1427 c0_24&=0xFF;
1428 /* Draw */
1429 d[0] = NR_COMPOSEA_111(c0_24,d[0]);
1430 } else {
1431 dv/=len;
1432 sv+=0.5*dv; // correction trapezoidale
1433 sv*=16777216;
1434 dv*=16777216;
1435 int c0_24 = static_cast<int>(CLAMP(sv, 0, 16777216));
1436 int s0_24 = static_cast<int>(dv);
1437 while (len > 0) {
1438 unsigned int ca;
1439 /* Draw */
1440 ca = c0_24 >> 16;
1441 if ( ca > 255 ) ca=255;
1442 d[0] = NR_COMPOSEA_111(ca,d[0]);
1443 d += 1;
1444 c0_24 += s0_24;
1445 c0_24 = CLAMP(c0_24, 0, 16777216);
1446 len -= 1;
1447 }
1448 }
1449 }
1450 }
1452 void nr_pixblock_render_shape_mask_or(NRPixBlock &m,Shape* theS)
1453 {
1454 theS->CalcBBox();
1455 float l = theS->leftX, r = theS->rightX, t = theS->topY, b = theS->bottomY;
1456 int il,ir,it,ib;
1457 il=(int)floor(l);
1458 ir=(int)ceil(r);
1459 it=(int)floor(t);
1460 ib=(int)ceil(b);
1462 if ( il >= m.area.x1 || ir <= m.area.x0 || it >= m.area.y1 || ib <= m.area.y0 ) return;
1463 if ( il < m.area.x0 ) il=m.area.x0;
1464 if ( it < m.area.y0 ) it=m.area.y0;
1465 if ( ir > m.area.x1 ) ir=m.area.x1;
1466 if ( ib > m.area.y1 ) ib=m.area.y1;
1468 /* This is the FloatLigne version. See svn (prior to Apr 2006) for versions using BitLigne or direct BitLigne. */
1469 int curPt;
1470 float curY;
1471 theS->BeginQuickRaster(curY, curPt);
1473 FloatLigne *theI = new FloatLigne();
1474 IntLigne *theIL = new IntLigne();
1476 theS->DirectQuickScan(curY, curPt, (float) it, true, 1.0);
1478 char *mdata = (char*)m.data.px;
1479 if ( m.size == NR_PIXBLOCK_SIZE_TINY ) mdata=(char*)m.data.p;
1480 uint32_t *ligStart = ((uint32_t*)(mdata + ((il - m.area.x0) + m.rs * (it - m.area.y0))));
1481 for (int y = it; y < ib; y++) {
1482 theI->Reset();
1483 theS->QuickScan(curY, curPt, ((float)(y+1)), theI, 1.0);
1484 theI->Flatten();
1485 theIL->Copy(theI);
1487 raster_info dest;
1488 dest.startPix=il;
1489 dest.endPix=ir;
1490 dest.sth=il;
1491 dest.stv=y;
1492 dest.buffer=ligStart;
1493 theIL->Raster(dest, NULL, shape_run_A8_OR);
1494 ligStart=((uint32_t*)(((char*)ligStart)+m.rs));
1495 }
1496 theS->EndQuickRaster();
1497 delete theI;
1498 delete theIL;
1499 }
1502 /*
1503 Local Variables:
1504 mode:c++
1505 c-file-style:"stroustrup"
1506 c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
1507 indent-tabs-mode:nil
1508 fill-column:99
1509 End:
1510 */
1511 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=99 :