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>
39 #include <glib.h>
40 #include "svg/svg.h"
41 #include <fenv.h>
43 //int showRuns=0;
44 void nr_pixblock_render_shape_mask_or(NRPixBlock &m,Shape* theS);
46 static void nr_arena_shape_class_init(NRArenaShapeClass *klass);
47 static void nr_arena_shape_init(NRArenaShape *shape);
48 static void nr_arena_shape_finalize(NRObject *object);
50 static NRArenaItem *nr_arena_shape_children(NRArenaItem *item);
51 static void nr_arena_shape_add_child(NRArenaItem *item, NRArenaItem *child, NRArenaItem *ref);
52 static void nr_arena_shape_remove_child(NRArenaItem *item, NRArenaItem *child);
53 static void nr_arena_shape_set_child_position(NRArenaItem *item, NRArenaItem *child, NRArenaItem *ref);
55 static guint nr_arena_shape_update(NRArenaItem *item, NRRectL *area, NRGC *gc, guint state, guint reset);
56 static unsigned int nr_arena_shape_render(cairo_t *ct, NRArenaItem *item, NRRectL *area, NRPixBlock *pb, unsigned int flags);
57 static guint nr_arena_shape_clip(NRArenaItem *item, NRRectL *area, NRPixBlock *pb);
58 static NRArenaItem *nr_arena_shape_pick(NRArenaItem *item, Geom::Point p, double delta, unsigned int sticky);
60 static NRArenaItemClass *shape_parent_class;
62 NRType
63 nr_arena_shape_get_type(void)
64 {
65 static NRType type = 0;
66 if (!type) {
67 type = nr_object_register_type(NR_TYPE_ARENA_ITEM,
68 "NRArenaShape",
69 sizeof(NRArenaShapeClass),
70 sizeof(NRArenaShape),
71 (void (*)(NRObjectClass *)) nr_arena_shape_class_init,
72 (void (*)(NRObject *)) nr_arena_shape_init);
73 }
74 return type;
75 }
77 static void
78 nr_arena_shape_class_init(NRArenaShapeClass *klass)
79 {
80 NRObjectClass *object_class;
81 NRArenaItemClass *item_class;
83 object_class = (NRObjectClass *) klass;
84 item_class = (NRArenaItemClass *) klass;
86 shape_parent_class = (NRArenaItemClass *) ((NRObjectClass *) klass)->parent;
88 object_class->finalize = nr_arena_shape_finalize;
89 object_class->cpp_ctor = NRObject::invoke_ctor<NRArenaShape>;
91 item_class->children = nr_arena_shape_children;
92 item_class->add_child = nr_arena_shape_add_child;
93 item_class->set_child_position = nr_arena_shape_set_child_position;
94 item_class->remove_child = nr_arena_shape_remove_child;
95 item_class->update = nr_arena_shape_update;
96 item_class->render = nr_arena_shape_render;
97 item_class->clip = nr_arena_shape_clip;
98 item_class->pick = nr_arena_shape_pick;
99 }
101 /**
102 * Initializes the arena shape, setting all parameters to null, 0, false,
103 * or other defaults
104 */
105 static void
106 nr_arena_shape_init(NRArenaShape *shape)
107 {
108 shape->curve = NULL;
109 shape->style = NULL;
110 shape->paintbox.x0 = shape->paintbox.y0 = 0.0F;
111 shape->paintbox.x1 = shape->paintbox.y1 = 256.0F;
113 shape->ctm.setIdentity();
114 shape->fill_painter = NULL;
115 shape->stroke_painter = NULL;
116 shape->cached_fill = NULL;
117 shape->cached_stroke = NULL;
118 shape->cached_fpartialy = false;
119 shape->cached_spartialy = false;
120 shape->fill_shp = NULL;
121 shape->stroke_shp = NULL;
123 shape->delayed_shp = false;
125 shape->approx_bbox.x0 = shape->approx_bbox.y0 = 0;
126 shape->approx_bbox.x1 = shape->approx_bbox.y1 = 0;
127 shape->cached_fctm.setIdentity();
128 shape->cached_sctm.setIdentity();
130 shape->markers = NULL;
132 shape->last_pick = NULL;
133 shape->repick_after = 0;
134 }
136 static void
137 nr_arena_shape_finalize(NRObject *object)
138 {
139 NRArenaShape *shape = (NRArenaShape *) object;
141 if (shape->fill_shp) delete shape->fill_shp;
142 if (shape->stroke_shp) delete shape->stroke_shp;
143 if (shape->cached_fill) delete shape->cached_fill;
144 if (shape->cached_stroke) delete shape->cached_stroke;
145 if (shape->fill_painter) sp_painter_free(shape->fill_painter);
146 if (shape->stroke_painter) sp_painter_free(shape->stroke_painter);
148 if (shape->style) sp_style_unref(shape->style);
149 if (shape->curve) shape->curve->unref();
151 ((NRObjectClass *) shape_parent_class)->finalize(object);
152 }
154 /**
155 * Retrieves the markers from the item
156 */
157 static NRArenaItem *
158 nr_arena_shape_children(NRArenaItem *item)
159 {
160 NRArenaShape *shape = (NRArenaShape *) item;
162 return shape->markers;
163 }
165 /**
166 * Attaches child to item, and if ref is not NULL, sets it and ref->next as
167 * the prev and next items. If ref is NULL, then it sets the item's markers
168 * as the next items.
169 */
170 static void
171 nr_arena_shape_add_child(NRArenaItem *item, NRArenaItem *child, NRArenaItem *ref)
172 {
173 NRArenaShape *shape = (NRArenaShape *) item;
175 if (!ref) {
176 shape->markers = nr_arena_item_attach(item, child, NULL, shape->markers);
177 } else {
178 ref->next = nr_arena_item_attach(item, child, ref, ref->next);
179 }
181 nr_arena_item_request_update(item, NR_ARENA_ITEM_STATE_ALL, FALSE);
182 }
184 /**
185 * Removes child from the shape. If there are no prev items in
186 * the child, it sets items' markers to the next item in the child.
187 */
188 static void
189 nr_arena_shape_remove_child(NRArenaItem *item, NRArenaItem *child)
190 {
191 NRArenaShape *shape = (NRArenaShape *) item;
193 if (child->prev) {
194 nr_arena_item_detach(item, child);
195 } else {
196 shape->markers = nr_arena_item_detach(item, child);
197 }
199 nr_arena_item_request_update(item, NR_ARENA_ITEM_STATE_ALL, FALSE);
200 }
202 /**
203 * Detaches child from item, and if there are no previous items in child, it
204 * sets item's markers to the child. It then attaches the child back onto the item.
205 * If ref is null, it sets the markers to be the next item, otherwise it uses
206 * the next/prev items in ref.
207 */
208 static void
209 nr_arena_shape_set_child_position(NRArenaItem *item, NRArenaItem *child, NRArenaItem *ref)
210 {
211 NRArenaShape *shape = (NRArenaShape *) item;
213 if (child->prev) {
214 nr_arena_item_detach(item, child);
215 } else {
216 shape->markers = nr_arena_item_detach(item, child);
217 }
219 if (!ref) {
220 shape->markers = nr_arena_item_attach(item, child, NULL, shape->markers);
221 } else {
222 ref->next = nr_arena_item_attach(item, child, ref, ref->next);
223 }
225 nr_arena_item_request_render(child);
226 }
228 void nr_arena_shape_update_stroke(NRArenaShape *shape, NRGC* gc, NRRectL *area);
229 void nr_arena_shape_update_fill(NRArenaShape *shape, NRGC *gc, NRRectL *area, bool force_shape = false);
230 void nr_arena_shape_add_bboxes(NRArenaShape* shape, Geom::OptRect &bbox);
232 /**
233 * Updates the arena shape 'item' and all of its children, including the markers.
234 */
235 static guint
236 nr_arena_shape_update(NRArenaItem *item, NRRectL *area, NRGC *gc, guint state, guint reset)
237 {
238 Geom::OptRect boundingbox;
240 NRArenaShape *shape = NR_ARENA_SHAPE(item);
242 unsigned int beststate = NR_ARENA_ITEM_STATE_ALL;
244 unsigned int newstate;
245 for (NRArenaItem *child = shape->markers; child != NULL; child = child->next) {
246 newstate = nr_arena_item_invoke_update(child, area, gc, state, reset);
247 beststate = beststate & newstate;
248 }
250 if (!(state & NR_ARENA_ITEM_STATE_RENDER)) {
251 /* We do not have to create rendering structures */
252 shape->ctm = gc->transform;
253 if (state & NR_ARENA_ITEM_STATE_BBOX) {
254 if (shape->curve) {
255 boundingbox = bounds_exact_transformed(shape->curve->get_pathvector(), gc->transform);
256 /// \todo just write item->bbox = boundingbox
257 if (boundingbox) {
258 item->bbox.x0 = (gint32)((*boundingbox)[0][0] - 1.0F);
259 item->bbox.y0 = (gint32)((*boundingbox)[1][0] - 1.0F);
260 item->bbox.x1 = (gint32)((*boundingbox)[0][1] + 1.9999F);
261 item->bbox.y1 = (gint32)((*boundingbox)[1][1] + 1.9999F);
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 = (gint32)((*boundingbox)[0][0] - 1.0F);
303 shape->approx_bbox.y0 = (gint32)((*boundingbox)[1][0] - 1.0F);
304 shape->approx_bbox.x1 = (gint32)((*boundingbox)[0][1] + 1.9999F);
305 shape->approx_bbox.y1 = (gint32)((*boundingbox)[1][1] + 1.9999F);
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 = (gint32)((*boundingbox)[0][0] - 1.0F);
352 shape->approx_bbox.y0 = (gint32)((*boundingbox)[1][0] - 1.0F);
353 shape->approx_bbox.x1 = (gint32)((*boundingbox)[0][1] + 1.9999F);
354 shape->approx_bbox.y1 = (gint32)((*boundingbox)[1][1] + 1.9999F);
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 = (gint32)((*boundingbox)[0][0] - 1.0F);
365 item->bbox.y0 = (gint32)((*boundingbox)[1][0] - 1.0F);
366 item->bbox.x1 = (gint32)((*boundingbox)[0][1] + 1.0F);
367 item->bbox.y1 = (gint32)((*boundingbox)[1][1] + 1.0F);
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 }
835 /**
836 * Renders the item. Markers are just composed into the parent buffer.
837 */
838 static unsigned int
839 nr_arena_shape_render(cairo_t *ct, NRArenaItem *item, NRRectL *area, NRPixBlock *pb, unsigned int flags)
840 {
841 NRArenaShape *shape = NR_ARENA_SHAPE(item);
843 if (!shape->curve) return item->state;
844 if (!shape->style) return item->state;
846 bool outline = (NR_ARENA_ITEM(shape)->arena->rendermode == Inkscape::RENDERMODE_OUTLINE);
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;
877 if (shape->fill_shp) {
878 NRPixBlock m;
879 guint32 rgba;
881 nr_pixblock_setup_fast(&m, NR_PIXBLOCK_MODE_A8, area->x0, area->y0, area->x1, area->y1, TRUE);
883 // if memory allocation failed, abort render
884 if (m.size != NR_PIXBLOCK_SIZE_TINY && m.data.px == NULL) {
885 nr_pixblock_release (&m);
886 return (item->state);
887 }
889 m.visible_area = pb->visible_area;
890 nr_pixblock_render_shape_mask_or(m,shape->fill_shp);
891 m.empty = FALSE;
893 if (shape->_fill.paint.type() == NRArenaShape::Paint::NONE) {
894 // do not render fill in any way
895 } else if (shape->_fill.paint.type() == NRArenaShape::Paint::COLOR) {
896 if ( item->render_opacity ) {
897 rgba = shape->_fill.paint.color().toRGBA32( shape->_fill.opacity *
898 SP_SCALE24_TO_FLOAT(style->opacity.value) );
899 } else {
900 rgba = shape->_fill.paint.color().toRGBA32( shape->_fill.opacity );
901 }
902 nr_blit_pixblock_mask_rgba32(pb, &m, rgba);
903 pb->empty = FALSE;
904 } else if (shape->_fill.paint.type() == NRArenaShape::Paint::SERVER) {
905 if (shape->fill_painter) {
906 nr_arena_render_paintserver_fill(pb, area, shape->fill_painter, shape->_fill.opacity, &m);
907 }
908 }
910 nr_pixblock_release(&m);
911 }
913 if (shape->stroke_shp && shape->_stroke.paint.type() == NRArenaShape::Paint::COLOR) {
915 // cairo_arena_shape_render_stroke(item, area, pb);
917 guint32 rgba;
918 NRPixBlock m;
920 nr_pixblock_setup_fast(&m, NR_PIXBLOCK_MODE_A8, area->x0, area->y0, area->x1, area->y1, TRUE);
922 // if memory allocation failed, abort render
923 if (m.size != NR_PIXBLOCK_SIZE_TINY && m.data.px == NULL) {
924 nr_pixblock_release (&m);
925 return (item->state);
926 }
928 m.visible_area = pb->visible_area;
929 nr_pixblock_render_shape_mask_or(m, shape->stroke_shp);
930 m.empty = FALSE;
932 if ( item->render_opacity ) {
933 rgba = shape->_stroke.paint.color().toRGBA32( shape->_stroke.opacity *
934 SP_SCALE24_TO_FLOAT(style->opacity.value) );
935 } else {
936 rgba = shape->_stroke.paint.color().toRGBA32( shape->_stroke.opacity );
937 }
938 nr_blit_pixblock_mask_rgba32(pb, &m, rgba);
939 pb->empty = FALSE;
941 nr_pixblock_release(&m);
943 } else if (shape->stroke_shp && shape->_stroke.paint.type() == NRArenaShape::Paint::SERVER) {
945 NRPixBlock m;
947 nr_pixblock_setup_fast(&m, NR_PIXBLOCK_MODE_A8, area->x0, area->y0, area->x1, area->y1, TRUE);
949 // if memory allocation failed, abort render
950 if (m.size != NR_PIXBLOCK_SIZE_TINY && m.data.px == NULL) {
951 nr_pixblock_release (&m);
952 return (item->state);
953 }
955 m.visible_area = pb->visible_area;
956 nr_pixblock_render_shape_mask_or(m, shape->stroke_shp);
957 m.empty = FALSE;
959 if (shape->stroke_painter) {
960 nr_arena_render_paintserver_fill(pb, area, shape->stroke_painter, shape->_stroke.opacity, &m);
961 }
963 nr_pixblock_release(&m);
964 }
966 } // non-cairo non-outline branch
968 /* Render markers into parent buffer */
969 for (NRArenaItem *child = shape->markers; child != NULL; child = child->next) {
970 unsigned int ret = nr_arena_item_invoke_render(ct, child, area, pb, flags);
971 if (ret & NR_ARENA_ITEM_STATE_INVALID) return ret;
972 }
974 return item->state;
975 }
978 // cairo clipping: this basically works except for the stride-must-be-divisible-by-4 cairo bug;
979 // reenable this when the bug is fixed and remove the rest of this function
980 // TODO
981 #if defined(DEADCODE) && !defined(DEADCODE)
982 static guint
983 cairo_arena_shape_clip(NRArenaItem *item, NRRectL *area, NRPixBlock *pb)
984 {
985 NRArenaShape *shape = NR_ARENA_SHAPE(item);
986 if (!shape->curve) return item->state;
988 cairo_t *ct = nr_create_cairo_context (area, pb);
990 if (!ct)
991 return item->state;
993 cairo_set_source_rgba(ct, 0, 0, 0, 1);
995 cairo_new_path(ct);
997 feed_pathvector_to_cairo (ct, shape->curve->get_pathvector(), shape->ctm, (area)->upgrade(), false, 0);
999 cairo_fill(ct);
1001 cairo_surface_t *cst = cairo_get_target(ct);
1002 cairo_destroy (ct);
1003 cairo_surface_finish (cst);
1004 cairo_surface_destroy (cst);
1006 pb->empty = FALSE;
1008 return item->state;
1009 }
1010 #endif //defined(DEADCODE) && !defined(DEADCODE)
1013 static guint
1014 nr_arena_shape_clip(NRArenaItem *item, NRRectL *area, NRPixBlock *pb)
1015 {
1016 //return cairo_arena_shape_clip(item, area, pb);
1018 NRArenaShape *shape = NR_ARENA_SHAPE(item);
1019 if (!shape->curve) return item->state;
1021 if ( shape->delayed_shp || shape->fill_shp == NULL) { // we need a fill shape no matter what
1022 if ( nr_rect_l_test_intersect_ptr(area, &item->bbox) ) {
1023 NRGC tempGC(NULL);
1024 tempGC.transform=shape->ctm;
1025 shape->delayed_shp = false;
1026 nr_arena_shape_update_fill(shape, &tempGC, &pb->visible_area, true);
1027 } else {
1028 return item->state;
1029 }
1030 }
1032 if ( shape->fill_shp ) {
1033 NRPixBlock m;
1035 /* fixme: We can OR in one step (Lauris) */
1036 nr_pixblock_setup_fast(&m, NR_PIXBLOCK_MODE_A8, area->x0, area->y0, area->x1, area->y1, TRUE);
1038 // if memory allocation failed, abort
1039 if (m.size != NR_PIXBLOCK_SIZE_TINY && m.data.px == NULL) {
1040 nr_pixblock_release (&m);
1041 return (item->state);
1042 }
1044 m.visible_area = pb->visible_area;
1045 nr_pixblock_render_shape_mask_or(m,shape->fill_shp);
1047 for (int y = area->y0; y < area->y1; y++) {
1048 unsigned char *s, *d;
1049 s = NR_PIXBLOCK_PX(&m) + (y - area->y0) * m.rs;
1050 d = NR_PIXBLOCK_PX(pb) + (y - area->y0) * pb->rs;
1051 for (int x = area->x0; x < area->x1; x++) {
1052 *d = NR_COMPOSEA_111(*s, *d);
1053 d ++;
1054 s ++;
1055 }
1056 }
1057 nr_pixblock_release(&m);
1058 pb->empty = FALSE;
1059 }
1061 return item->state;
1062 }
1064 static NRArenaItem *
1065 nr_arena_shape_pick(NRArenaItem *item, Geom::Point p, double delta, unsigned int /*sticky*/)
1066 {
1067 NRArenaShape *shape = NR_ARENA_SHAPE(item);
1069 if (shape->repick_after > 0)
1070 shape->repick_after--;
1072 if (shape->repick_after > 0) // we are a slow, huge path. skip this pick, returning what was returned last time
1073 return shape->last_pick;
1075 if (!shape->curve) return NULL;
1076 if (!shape->style) return NULL;
1078 bool outline = (NR_ARENA_ITEM(shape)->arena->rendermode == Inkscape::RENDERMODE_OUTLINE);
1080 if (SP_SCALE24_TO_FLOAT(shape->style->opacity.value) == 0 && !outline)
1081 // fully transparent, no pick unless outline mode
1082 return NULL;
1084 GTimeVal tstart, tfinish;
1085 g_get_current_time (&tstart);
1087 double width;
1088 if (outline) {
1089 width = 0.5;
1090 } else if (shape->_stroke.paint.type() != NRArenaShape::Paint::NONE && shape->_stroke.opacity > 1e-3) {
1091 float const scale = shape->ctm.descrim();
1092 width = MAX(0.125, shape->_stroke.width * scale) / 2;
1093 } else {
1094 width = 0;
1095 }
1097 double dist = NR_HUGE;
1098 int wind = 0;
1099 bool needfill = (shape->_fill.paint.type() != NRArenaShape::Paint::NONE
1100 && shape->_fill.opacity > 1e-3 && !outline);
1102 if (item->arena->canvasarena) {
1103 Geom::Rect viewbox = item->arena->canvasarena->item.canvas->getViewbox();
1104 viewbox.expandBy (width);
1105 pathv_matrix_point_bbox_wind_distance(shape->curve->get_pathvector(), shape->ctm, p, NULL, needfill? &wind : NULL, &dist, 0.5, &viewbox);
1106 } else {
1107 pathv_matrix_point_bbox_wind_distance(shape->curve->get_pathvector(), shape->ctm, p, NULL, needfill? &wind : NULL, &dist, 0.5, NULL);
1108 }
1110 g_get_current_time (&tfinish);
1111 glong this_pick = (tfinish.tv_sec - tstart.tv_sec) * 1000000 + (tfinish.tv_usec - tstart.tv_usec);
1112 //g_print ("pick time %lu\n", this_pick);
1114 if (this_pick > 10000) { // slow picking, remember to skip several new picks
1115 shape->repick_after = this_pick / 5000;
1116 }
1118 // covered by fill?
1119 if (needfill) {
1120 if (!shape->style->fill_rule.computed) {
1121 if (wind != 0) {
1122 shape->last_pick = item;
1123 return item;
1124 }
1125 } else {
1126 if (wind & 0x1) {
1127 shape->last_pick = item;
1128 return item;
1129 }
1130 }
1131 }
1133 // close to the edge, as defined by strokewidth and delta?
1134 // this ignores dashing (as if the stroke is solid) and always works as if caps are round
1135 if (needfill || width > 0) { // if either fill or stroke visible,
1136 if ((dist - width) < delta) {
1137 shape->last_pick = item;
1138 return item;
1139 }
1140 }
1142 // if not picked on the shape itself, try its markers
1143 for (NRArenaItem *child = shape->markers; child != NULL; child = child->next) {
1144 NRArenaItem *ret = nr_arena_item_invoke_pick(child, p, delta, 0);
1145 if (ret) {
1146 shape->last_pick = item;
1147 return item;
1148 }
1149 }
1151 shape->last_pick = NULL;
1152 return NULL;
1153 }
1155 /**
1156 *
1157 * Requests a render of the shape, then if the shape is already a curve it
1158 * unrefs the old curve; if the new curve is valid it creates a copy of the
1159 * curve and adds it to the shape. Finally, it requests an update of the
1160 * arena for the shape.
1161 */
1162 void nr_arena_shape_set_path(NRArenaShape *shape, SPCurve *curve,bool justTrans)
1163 {
1164 g_return_if_fail(shape != NULL);
1165 g_return_if_fail(NR_IS_ARENA_SHAPE(shape));
1167 if ( justTrans == false ) {
1168 // dirty cached versions
1169 if ( shape->cached_fill ) {
1170 delete shape->cached_fill;
1171 shape->cached_fill=NULL;
1172 }
1173 if ( shape->cached_stroke ) {
1174 delete shape->cached_stroke;
1175 shape->cached_stroke=NULL;
1176 }
1177 }
1179 nr_arena_item_request_render(NR_ARENA_ITEM(shape));
1181 if (shape->curve) {
1182 shape->curve->unref();
1183 shape->curve = NULL;
1184 }
1186 if (curve) {
1187 shape->curve = curve;
1188 curve->ref();
1189 }
1191 nr_arena_item_request_update(NR_ARENA_ITEM(shape), NR_ARENA_ITEM_STATE_ALL, FALSE);
1192 }
1194 void NRArenaShape::setFill(SPPaintServer *server) {
1195 _fill.paint.set(server);
1196 _invalidateCachedFill();
1197 }
1199 void NRArenaShape::setFill(SPColor const &color) {
1200 _fill.paint.set(color);
1201 _invalidateCachedFill();
1202 }
1204 void NRArenaShape::setFillOpacity(double opacity) {
1205 _fill.opacity = opacity;
1206 _invalidateCachedFill();
1207 }
1209 void NRArenaShape::setFillRule(NRArenaShape::FillRule rule) {
1210 _fill.rule = rule;
1211 _invalidateCachedFill();
1212 }
1214 void NRArenaShape::setStroke(SPPaintServer *server) {
1215 _stroke.paint.set(server);
1216 _invalidateCachedStroke();
1217 }
1219 void NRArenaShape::setStroke(SPColor const &color) {
1220 _stroke.paint.set(color);
1221 _invalidateCachedStroke();
1222 }
1224 void NRArenaShape::setStrokeOpacity(double opacity) {
1225 _stroke.opacity = opacity;
1226 _invalidateCachedStroke();
1227 }
1229 void NRArenaShape::setStrokeWidth(double width) {
1230 _stroke.width = width;
1231 _invalidateCachedStroke();
1232 }
1234 void NRArenaShape::setMitreLimit(double limit) {
1235 _stroke.mitre_limit = limit;
1236 _invalidateCachedStroke();
1237 }
1239 void NRArenaShape::setLineCap(NRArenaShape::CapType cap) {
1240 _stroke.cap = cap;
1241 _invalidateCachedStroke();
1242 }
1244 void NRArenaShape::setLineJoin(NRArenaShape::JoinType join) {
1245 _stroke.join = join;
1246 _invalidateCachedStroke();
1247 }
1249 /** nr_arena_shape_set_style
1250 *
1251 * Unrefs any existing style and ref's to the given one, then requests an update of the arena
1252 */
1253 void
1254 nr_arena_shape_set_style(NRArenaShape *shape, SPStyle *style)
1255 {
1256 g_return_if_fail(shape != NULL);
1257 g_return_if_fail(NR_IS_ARENA_SHAPE(shape));
1259 if (style) sp_style_ref(style);
1260 if (shape->style) sp_style_unref(shape->style);
1261 shape->style = style;
1263 if ( style->fill.isPaintserver() ) {
1264 shape->setFill(style->getFillPaintServer());
1265 } else if ( style->fill.isColor() ) {
1266 shape->setFill(style->fill.value.color);
1267 } else if ( style->fill.isNone() ) {
1268 shape->setFill(NULL);
1269 } else {
1270 g_assert_not_reached();
1271 }
1272 shape->setFillOpacity(SP_SCALE24_TO_FLOAT(style->fill_opacity.value));
1273 switch (style->fill_rule.computed) {
1274 case SP_WIND_RULE_EVENODD: {
1275 shape->setFillRule(NRArenaShape::EVEN_ODD);
1276 break;
1277 }
1278 case SP_WIND_RULE_NONZERO: {
1279 shape->setFillRule(NRArenaShape::NONZERO);
1280 break;
1281 }
1282 default: {
1283 g_assert_not_reached();
1284 }
1285 }
1287 if ( style->stroke.isPaintserver() ) {
1288 shape->setStroke(style->getStrokePaintServer());
1289 } else if ( style->stroke.isColor() ) {
1290 shape->setStroke(style->stroke.value.color);
1291 } else if ( style->stroke.isNone() ) {
1292 shape->setStroke(NULL);
1293 } else {
1294 g_assert_not_reached();
1295 }
1296 shape->setStrokeWidth(style->stroke_width.computed);
1297 shape->setStrokeOpacity(SP_SCALE24_TO_FLOAT(style->stroke_opacity.value));
1298 switch (style->stroke_linecap.computed) {
1299 case SP_STROKE_LINECAP_ROUND: {
1300 shape->setLineCap(NRArenaShape::ROUND_CAP);
1301 break;
1302 }
1303 case SP_STROKE_LINECAP_SQUARE: {
1304 shape->setLineCap(NRArenaShape::SQUARE_CAP);
1305 break;
1306 }
1307 case SP_STROKE_LINECAP_BUTT: {
1308 shape->setLineCap(NRArenaShape::BUTT_CAP);
1309 break;
1310 }
1311 default: {
1312 g_assert_not_reached();
1313 }
1314 }
1315 switch (style->stroke_linejoin.computed) {
1316 case SP_STROKE_LINEJOIN_ROUND: {
1317 shape->setLineJoin(NRArenaShape::ROUND_JOIN);
1318 break;
1319 }
1320 case SP_STROKE_LINEJOIN_BEVEL: {
1321 shape->setLineJoin(NRArenaShape::BEVEL_JOIN);
1322 break;
1323 }
1324 case SP_STROKE_LINEJOIN_MITER: {
1325 shape->setLineJoin(NRArenaShape::MITRE_JOIN);
1326 break;
1327 }
1328 default: {
1329 g_assert_not_reached();
1330 }
1331 }
1332 shape->setMitreLimit(style->stroke_miterlimit.value);
1334 //if shape has a filter
1335 if (style->filter.set && style->getFilter()) {
1336 if (!shape->filter) {
1337 int primitives = sp_filter_primitive_count(SP_FILTER(style->getFilter()));
1338 shape->filter = new Inkscape::Filters::Filter(primitives);
1339 }
1340 sp_filter_build_renderer(SP_FILTER(style->getFilter()), shape->filter);
1341 } else {
1342 //no filter set for this shape
1343 delete shape->filter;
1344 shape->filter = NULL;
1345 }
1347 nr_arena_item_request_update(shape, NR_ARENA_ITEM_STATE_ALL, FALSE);
1348 }
1350 void
1351 nr_arena_shape_set_paintbox(NRArenaShape *shape, NRRect const *pbox)
1352 {
1353 g_return_if_fail(shape != NULL);
1354 g_return_if_fail(NR_IS_ARENA_SHAPE(shape));
1355 g_return_if_fail(pbox != NULL);
1357 if ((pbox->x0 < pbox->x1) && (pbox->y0 < pbox->y1)) {
1358 shape->paintbox = *pbox;
1359 } else {
1360 /* fixme: We kill warning, although not sure what to do here (Lauris) */
1361 shape->paintbox.x0 = shape->paintbox.y0 = 0.0F;
1362 shape->paintbox.x1 = shape->paintbox.y1 = 256.0F;
1363 }
1365 nr_arena_item_request_update(shape, NR_ARENA_ITEM_STATE_ALL, FALSE);
1366 }
1368 void NRArenaShape::setPaintBox(Geom::Rect const &pbox)
1369 {
1370 paintbox.x0 = pbox.min()[Geom::X];
1371 paintbox.y0 = pbox.min()[Geom::Y];
1372 paintbox.x1 = pbox.max()[Geom::X];
1373 paintbox.y1 = pbox.max()[Geom::Y];
1375 nr_arena_item_request_update(this, NR_ARENA_ITEM_STATE_ALL, FALSE);
1376 }
1378 static void
1379 shape_run_A8_OR(raster_info &dest,void */*data*/,int st,float vst,int en,float ven)
1380 {
1381 if ( st >= en ) return;
1382 if ( vst < 0 ) vst=0;
1383 if ( vst > 1 ) vst=1;
1384 if ( ven < 0 ) ven=0;
1385 if ( ven > 1 ) ven=1;
1386 float sv=vst;
1387 float dv=ven-vst;
1388 int len=en-st;
1389 unsigned char* d=(unsigned char*)dest.buffer;
1390 d+=(st-dest.startPix);
1391 if ( fabs(dv) < 0.001 ) {
1392 if ( vst > 0.999 ) {
1393 /* Simple copy */
1394 while (len > 0) {
1395 d[0] = 255;
1396 d += 1;
1397 len -= 1;
1398 }
1399 } else {
1400 sv*=256;
1401 unsigned int c0_24=(int)sv;
1402 c0_24&=0xFF;
1403 while (len > 0) {
1404 /* Draw */
1405 d[0] = NR_COMPOSEA_111(c0_24,d[0]);
1406 d += 1;
1407 len -= 1;
1408 }
1409 }
1410 } else {
1411 if ( en <= st+1 ) {
1412 sv=0.5*(vst+ven);
1413 sv*=256;
1414 unsigned int c0_24=(int)sv;
1415 c0_24&=0xFF;
1416 /* Draw */
1417 d[0] = NR_COMPOSEA_111(c0_24,d[0]);
1418 } else {
1419 dv/=len;
1420 sv+=0.5*dv; // correction trapezoidale
1421 sv*=16777216;
1422 dv*=16777216;
1423 int c0_24 = static_cast<int>(CLAMP(sv, 0, 16777216));
1424 int s0_24 = static_cast<int>(dv);
1425 while (len > 0) {
1426 unsigned int ca;
1427 /* Draw */
1428 ca = c0_24 >> 16;
1429 if ( ca > 255 ) ca=255;
1430 d[0] = NR_COMPOSEA_111(ca,d[0]);
1431 d += 1;
1432 c0_24 += s0_24;
1433 c0_24 = CLAMP(c0_24, 0, 16777216);
1434 len -= 1;
1435 }
1436 }
1437 }
1438 }
1440 void nr_pixblock_render_shape_mask_or(NRPixBlock &m,Shape* theS)
1441 {
1442 theS->CalcBBox();
1443 float l = theS->leftX, r = theS->rightX, t = theS->topY, b = theS->bottomY;
1444 int il,ir,it,ib;
1445 il=(int)floor(l);
1446 ir=(int)ceil(r);
1447 it=(int)floor(t);
1448 ib=(int)ceil(b);
1450 if ( il >= m.area.x1 || ir <= m.area.x0 || it >= m.area.y1 || ib <= m.area.y0 ) return;
1451 if ( il < m.area.x0 ) il=m.area.x0;
1452 if ( it < m.area.y0 ) it=m.area.y0;
1453 if ( ir > m.area.x1 ) ir=m.area.x1;
1454 if ( ib > m.area.y1 ) ib=m.area.y1;
1456 /* This is the FloatLigne version. See svn (prior to Apr 2006) for versions using BitLigne or direct BitLigne. */
1457 int curPt;
1458 float curY;
1459 theS->BeginQuickRaster(curY, curPt);
1461 FloatLigne *theI = new FloatLigne();
1462 IntLigne *theIL = new IntLigne();
1464 theS->DirectQuickScan(curY, curPt, (float) it, true, 1.0);
1466 char *mdata = (char*)m.data.px;
1467 if ( m.size == NR_PIXBLOCK_SIZE_TINY ) mdata=(char*)m.data.p;
1468 uint32_t *ligStart = ((uint32_t*)(mdata + ((il - m.area.x0) + m.rs * (it - m.area.y0))));
1469 for (int y = it; y < ib; y++) {
1470 theI->Reset();
1471 theS->QuickScan(curY, curPt, ((float)(y+1)), theI, 1.0);
1472 theI->Flatten();
1473 theIL->Copy(theI);
1475 raster_info dest;
1476 dest.startPix=il;
1477 dest.endPix=ir;
1478 dest.sth=il;
1479 dest.stv=y;
1480 dest.buffer=ligStart;
1481 theIL->Raster(dest, NULL, shape_run_A8_OR);
1482 ligStart=((uint32_t*)(((char*)ligStart)+m.rs));
1483 }
1484 theS->EndQuickRaster();
1485 delete theI;
1486 delete theIL;
1487 }
1490 /*
1491 Local Variables:
1492 mode:c++
1493 c-file-style:"stroustrup"
1494 c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
1495 indent-tabs-mode:nil
1496 fill-column:99
1497 End:
1498 */
1499 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=99 :