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-matrix-ops.h>
23 #include <libnr/nr-matrix-fns.h>
24 #include <libnr/nr-blit.h>
25 #include <libnr/nr-convert2geom.h>
26 #include <2geom/pathvector.h>
27 #include <2geom/curves.h>
28 #include <livarot/Path.h>
29 #include <livarot/float-line.h>
30 #include <livarot/int-line.h>
31 #include <style.h>
32 #include "prefs-utils.h"
33 #include "inkscape-cairo.h"
34 #include "helper/geom.h"
35 #include "sp-filter.h"
36 #include "sp-filter-reference.h"
37 #include "display/nr-filter.h"
38 #include <typeinfo>
39 #include <cairo.h>
41 #include <glib.h>
42 #include "svg/svg.h"
43 #include <fenv.h>
45 //int showRuns=0;
46 void nr_pixblock_render_shape_mask_or(NRPixBlock &m,Shape* theS);
48 static void nr_arena_shape_class_init(NRArenaShapeClass *klass);
49 static void nr_arena_shape_init(NRArenaShape *shape);
50 static void nr_arena_shape_finalize(NRObject *object);
52 static NRArenaItem *nr_arena_shape_children(NRArenaItem *item);
53 static void nr_arena_shape_add_child(NRArenaItem *item, NRArenaItem *child, NRArenaItem *ref);
54 static void nr_arena_shape_remove_child(NRArenaItem *item, NRArenaItem *child);
55 static void nr_arena_shape_set_child_position(NRArenaItem *item, NRArenaItem *child, NRArenaItem *ref);
57 static guint nr_arena_shape_update(NRArenaItem *item, NRRectL *area, NRGC *gc, guint state, guint reset);
58 static unsigned int nr_arena_shape_render(cairo_t *ct, NRArenaItem *item, NRRectL *area, NRPixBlock *pb, unsigned int flags);
59 static guint nr_arena_shape_clip(NRArenaItem *item, NRRectL *area, NRPixBlock *pb);
60 static NRArenaItem *nr_arena_shape_pick(NRArenaItem *item, NR::Point p, double delta, unsigned int sticky);
62 static NRArenaItemClass *shape_parent_class;
64 NRType
65 nr_arena_shape_get_type(void)
66 {
67 static NRType type = 0;
68 if (!type) {
69 type = nr_object_register_type(NR_TYPE_ARENA_ITEM,
70 "NRArenaShape",
71 sizeof(NRArenaShapeClass),
72 sizeof(NRArenaShape),
73 (void (*)(NRObjectClass *)) nr_arena_shape_class_init,
74 (void (*)(NRObject *)) nr_arena_shape_init);
75 }
76 return type;
77 }
79 static void
80 nr_arena_shape_class_init(NRArenaShapeClass *klass)
81 {
82 NRObjectClass *object_class;
83 NRArenaItemClass *item_class;
85 object_class = (NRObjectClass *) klass;
86 item_class = (NRArenaItemClass *) klass;
88 shape_parent_class = (NRArenaItemClass *) ((NRObjectClass *) klass)->parent;
90 object_class->finalize = nr_arena_shape_finalize;
91 object_class->cpp_ctor = NRObject::invoke_ctor<NRArenaShape>;
93 item_class->children = nr_arena_shape_children;
94 item_class->add_child = nr_arena_shape_add_child;
95 item_class->set_child_position = nr_arena_shape_set_child_position;
96 item_class->remove_child = nr_arena_shape_remove_child;
97 item_class->update = nr_arena_shape_update;
98 item_class->render = nr_arena_shape_render;
99 item_class->clip = nr_arena_shape_clip;
100 item_class->pick = nr_arena_shape_pick;
101 }
103 /**
104 * Initializes the arena shape, setting all parameters to null, 0, false,
105 * or other defaults
106 */
107 static void
108 nr_arena_shape_init(NRArenaShape *shape)
109 {
110 shape->curve = NULL;
111 shape->style = NULL;
112 shape->paintbox.x0 = shape->paintbox.y0 = 0.0F;
113 shape->paintbox.x1 = shape->paintbox.y1 = 256.0F;
115 shape->ctm.set_identity();
116 shape->fill_painter = NULL;
117 shape->stroke_painter = NULL;
118 shape->cached_fill = NULL;
119 shape->cached_stroke = NULL;
120 shape->cached_fpartialy = false;
121 shape->cached_spartialy = false;
122 shape->fill_shp = NULL;
123 shape->stroke_shp = NULL;
125 shape->delayed_shp = false;
127 shape->approx_bbox.x0 = shape->approx_bbox.y0 = 0;
128 shape->approx_bbox.x1 = shape->approx_bbox.y1 = 0;
129 shape->cached_fctm.set_identity();
130 shape->cached_sctm.set_identity();
132 shape->markers = NULL;
134 shape->last_pick = NULL;
135 shape->repick_after = 0;
136 }
138 static void
139 nr_arena_shape_finalize(NRObject *object)
140 {
141 NRArenaShape *shape = (NRArenaShape *) object;
143 if (shape->fill_shp) delete shape->fill_shp;
144 if (shape->stroke_shp) delete shape->stroke_shp;
145 if (shape->cached_fill) delete shape->cached_fill;
146 if (shape->cached_stroke) delete shape->cached_stroke;
147 if (shape->fill_painter) sp_painter_free(shape->fill_painter);
148 if (shape->stroke_painter) sp_painter_free(shape->stroke_painter);
150 if (shape->style) sp_style_unref(shape->style);
151 if (shape->curve) shape->curve->unref();
153 ((NRObjectClass *) shape_parent_class)->finalize(object);
154 }
156 /**
157 * Retrieves the markers from the item
158 */
159 static NRArenaItem *
160 nr_arena_shape_children(NRArenaItem *item)
161 {
162 NRArenaShape *shape = (NRArenaShape *) item;
164 return shape->markers;
165 }
167 /**
168 * Attaches child to item, and if ref is not NULL, sets it and ref->next as
169 * the prev and next items. If ref is NULL, then it sets the item's markers
170 * as the next items.
171 */
172 static void
173 nr_arena_shape_add_child(NRArenaItem *item, NRArenaItem *child, NRArenaItem *ref)
174 {
175 NRArenaShape *shape = (NRArenaShape *) item;
177 if (!ref) {
178 shape->markers = nr_arena_item_attach(item, child, NULL, shape->markers);
179 } else {
180 ref->next = nr_arena_item_attach(item, child, ref, ref->next);
181 }
183 nr_arena_item_request_update(item, NR_ARENA_ITEM_STATE_ALL, FALSE);
184 }
186 /**
187 * Removes child from the shape. If there are no prev items in
188 * the child, it sets items' markers to the next item in the child.
189 */
190 static void
191 nr_arena_shape_remove_child(NRArenaItem *item, NRArenaItem *child)
192 {
193 NRArenaShape *shape = (NRArenaShape *) item;
195 if (child->prev) {
196 nr_arena_item_detach(item, child);
197 } else {
198 shape->markers = nr_arena_item_detach(item, child);
199 }
201 nr_arena_item_request_update(item, NR_ARENA_ITEM_STATE_ALL, FALSE);
202 }
204 /**
205 * Detaches child from item, and if there are no previous items in child, it
206 * sets item's markers to the child. It then attaches the child back onto the item.
207 * If ref is null, it sets the markers to be the next item, otherwise it uses
208 * the next/prev items in ref.
209 */
210 static void
211 nr_arena_shape_set_child_position(NRArenaItem *item, NRArenaItem *child, NRArenaItem *ref)
212 {
213 NRArenaShape *shape = (NRArenaShape *) item;
215 if (child->prev) {
216 nr_arena_item_detach(item, child);
217 } else {
218 shape->markers = nr_arena_item_detach(item, child);
219 }
221 if (!ref) {
222 shape->markers = nr_arena_item_attach(item, child, NULL, shape->markers);
223 } else {
224 ref->next = nr_arena_item_attach(item, child, ref, ref->next);
225 }
227 nr_arena_item_request_render(child);
228 }
230 void nr_arena_shape_update_stroke(NRArenaShape *shape, NRGC* gc, NRRectL *area);
231 void nr_arena_shape_update_fill(NRArenaShape *shape, NRGC *gc, NRRectL *area, bool force_shape = false);
232 void nr_arena_shape_add_bboxes(NRArenaShape* shape, Geom::Rect &bbox);
234 /**
235 * Updates the arena shape 'item' and all of its children, including the markers.
236 */
237 static guint
238 nr_arena_shape_update(NRArenaItem *item, NRRectL *area, NRGC *gc, guint state, guint reset)
239 {
240 Geom::Rect boundingbox;
242 NRArenaShape *shape = NR_ARENA_SHAPE(item);
244 unsigned int beststate = NR_ARENA_ITEM_STATE_ALL;
246 unsigned int newstate;
247 for (NRArenaItem *child = shape->markers; child != NULL; child = child->next) {
248 newstate = nr_arena_item_invoke_update(child, area, gc, state, reset);
249 beststate = beststate & newstate;
250 }
252 if (!(state & NR_ARENA_ITEM_STATE_RENDER)) {
253 /* We do not have to create rendering structures */
254 shape->ctm = gc->transform;
255 if (state & NR_ARENA_ITEM_STATE_BBOX) {
256 if (shape->curve) {
257 boundingbox = bounds_exact_transformed(shape->curve->get_pathvector(), to_2geom(gc->transform));
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 }
263 if (beststate & NR_ARENA_ITEM_STATE_BBOX) {
264 for (NRArenaItem *child = shape->markers; child != NULL; child = child->next) {
265 nr_rect_l_union(&item->bbox, &item->bbox, &child->bbox);
266 }
267 }
268 }
269 return (state | item->state);
270 }
272 shape->delayed_shp=true;
273 shape->ctm = gc->transform;
274 boundingbox[0][0] = boundingbox[1][0] = NR_HUGE;
275 boundingbox[0][1] = boundingbox[1][1] = -NR_HUGE;
277 bool outline = (NR_ARENA_ITEM(shape)->arena->rendermode == Inkscape::RENDERMODE_OUTLINE);
279 if (shape->curve) {
280 boundingbox = bounds_exact_transformed(shape->curve->get_pathvector(), to_2geom(gc->transform));
282 if (shape->_stroke.paint.type() != NRArenaShape::Paint::NONE || outline) {
283 float width, scale;
284 scale = NR::expansion(gc->transform);
285 width = MAX(0.125, shape->_stroke.width * scale);
286 if ( fabs(shape->_stroke.width * scale) > 0.01 ) { // sinon c'est 0=oon veut pas de bord
287 boundingbox.expandBy(width);
288 }
289 // those pesky miters, now
290 float miterMax=width*shape->_stroke.mitre_limit;
291 if ( miterMax > 0.01 ) {
292 // grunt mode. we should compute the various miters instead (one for each point on the curve)
293 boundingbox.expandBy(miterMax);
294 }
295 }
296 } else {
297 }
298 shape->approx_bbox.x0 = (gint32)(boundingbox[0][0] - 1.0F);
299 shape->approx_bbox.y0 = (gint32)(boundingbox[1][0] - 1.0F);
300 shape->approx_bbox.x1 = (gint32)(boundingbox[0][1] + 1.9999F);
301 shape->approx_bbox.y1 = (gint32)(boundingbox[1][1] + 1.9999F);
302 if ( area && nr_rect_l_test_intersect_ptr(area, &shape->approx_bbox) ) shape->delayed_shp=false;
304 /* Release state data */
305 if (TRUE || !NR::transform_equalp(gc->transform, shape->ctm, NR_EPSILON)) {
306 /* Concept test */
307 if (shape->fill_shp) {
308 delete shape->fill_shp;
309 shape->fill_shp = NULL;
310 }
311 }
312 if (shape->stroke_shp) {
313 delete shape->stroke_shp;
314 shape->stroke_shp = NULL;
315 }
316 if (shape->fill_painter) {
317 sp_painter_free(shape->fill_painter);
318 shape->fill_painter = NULL;
319 }
320 if (shape->stroke_painter) {
321 sp_painter_free(shape->stroke_painter);
322 shape->stroke_painter = NULL;
323 }
325 if (!shape->curve ||
326 !shape->style ||
327 shape->curve->is_empty() ||
328 (( shape->_fill.paint.type() == NRArenaShape::Paint::NONE ) &&
329 ( shape->_stroke.paint.type() == NRArenaShape::Paint::NONE && !outline) ))
330 {
331 item->bbox = shape->approx_bbox;
332 return NR_ARENA_ITEM_STATE_ALL;
333 }
335 /* Build state data */
336 if ( shape->delayed_shp ) {
337 item->bbox=shape->approx_bbox;
338 } else {
339 nr_arena_shape_update_stroke(shape, gc, area);
340 nr_arena_shape_update_fill(shape, gc, area);
342 boundingbox[0][0] = boundingbox[0][1] = boundingbox[1][0] = boundingbox[1][1] = 0.0;
343 nr_arena_shape_add_bboxes(shape, boundingbox);
345 shape->approx_bbox.x0 = (gint32)(boundingbox[0][0] - 1.0F);
346 shape->approx_bbox.y0 = (gint32)(boundingbox[1][0] - 1.0F);
347 shape->approx_bbox.x1 = (gint32)(boundingbox[0][1] + 1.9999F);
348 shape->approx_bbox.y1 = (gint32)(boundingbox[1][1] + 1.9999F);
349 }
351 if (boundingbox.isEmpty())
352 return NR_ARENA_ITEM_STATE_ALL;
354 item->bbox.x0 = (gint32)(boundingbox[0][0] - 1.0F);
355 item->bbox.y0 = (gint32)(boundingbox[1][0] - 1.0F);
356 item->bbox.x1 = (gint32)(boundingbox[0][1] + 1.0F);
357 item->bbox.y1 = (gint32)(boundingbox[1][1] + 1.0F);
358 nr_arena_request_render_rect(item->arena, &item->bbox);
360 item->render_opacity = TRUE;
361 if ( shape->_fill.paint.type() == NRArenaShape::Paint::SERVER ) {
362 if (gc && gc->parent) {
363 shape->fill_painter = sp_paint_server_painter_new(shape->_fill.paint.server(),
364 gc->transform, gc->parent->transform,
365 &shape->paintbox);
366 }
367 item->render_opacity = FALSE;
368 }
369 if ( shape->_stroke.paint.type() == NRArenaShape::Paint::SERVER ) {
370 if (gc && gc->parent) {
371 shape->stroke_painter = sp_paint_server_painter_new(shape->_stroke.paint.server(),
372 gc->transform, gc->parent->transform,
373 &shape->paintbox);
374 }
375 item->render_opacity = FALSE;
376 }
377 if ( (shape->_fill.paint.type() != NRArenaShape::Paint::NONE &&
378 shape->_stroke.paint.type() != NRArenaShape::Paint::NONE)
379 || (shape->markers)
380 )
381 {
382 // don't merge item opacity with paint opacity if there is a stroke on the fill, or markers on stroke
383 item->render_opacity = FALSE;
384 }
386 if (beststate & NR_ARENA_ITEM_STATE_BBOX) {
387 for (NRArenaItem *child = shape->markers; child != NULL; child = child->next) {
388 nr_rect_l_union(&item->bbox, &item->bbox, &child->bbox);
389 }
390 }
392 return NR_ARENA_ITEM_STATE_ALL;
393 }
395 int matrix_is_isometry(NR::Matrix p) {
396 NR::Matrix tp;
397 // transposition
398 tp[0]=p[0];
399 tp[1]=p[2];
400 tp[2]=p[1];
401 tp[3]=p[3];
402 for (int i = 4; i < 6; i++) // shut valgrind up :)
403 tp[i] = p[i] = 0;
404 NR::Matrix isom = tp*p; // A^T * A = adjunct?
405 // Is the adjunct nearly an identity function?
406 if (isom.is_translation(0.01)) {
407 // the transformation is an isometry -> no need to recompute
408 // the uncrossed polygon
409 if ( p.det() < 0 )
410 return -1;
411 else
412 return 1;
413 }
414 return 0;
415 }
417 static bool is_inner_area(NRRectL const &outer, NRRectL const &inner) {
418 return (outer.x0 <= inner.x0 && outer.y0 <= inner.y0 && outer.x1 >= inner.x1 && outer.y1 >= inner.y1);
419 }
421 /* returns true if the pathvector has a region that needs fill.
422 * is for optimizing purposes, so should be fast and can falsely return true.
423 * CANNOT falsely return false. */
424 static bool has_inner_area(Geom::PathVector const & pv) {
425 // return false for the cases where there is surely no region to be filled
426 if (pv.empty())
427 return false;
429 if ( (pv.size() == 1) && (pv.front().size() <= 1) ) {
430 // vector has only one path with only one segment, see if that's a non-curve segment: that would mean no internal region
431 Geom::Curve const * c = & pv.front().front();
432 if ( dynamic_cast<Geom::LineSegment const*>(c) ||
433 dynamic_cast<Geom::HLineSegment const*>(c) ||
434 dynamic_cast<Geom::VLineSegment const*>(c) )
435 {
436 return false;
437 }
438 }
440 return true; //too costly to see if it has region to be filled, so return true.
441 }
443 /** force_shape is used for clipping paths, when we need the shape for clipping even if it's not filled */
444 void
445 nr_arena_shape_update_fill(NRArenaShape *shape, NRGC *gc, NRRectL *area, bool force_shape)
446 {
447 if ((shape->_fill.paint.type() != NRArenaShape::Paint::NONE || force_shape) &&
448 // ((shape->curve->get_length() > 2) || (SP_CURVE_BPATH(shape->curve)[1].code == NR_CURVETO)) ) { // <-- this used to be the old code, i think it has to determine that the path has a sort of 'internal region' where fill would occur
449 has_inner_area(shape->curve->get_pathvector()) ) {
450 if (TRUE || !shape->fill_shp) {
451 NR::Matrix cached_to_new = NR::identity();
452 int isometry = 0;
453 if ( shape->cached_fill ) {
454 if (shape->cached_fctm == gc->transform) {
455 isometry = 2; // identity
456 } else {
457 cached_to_new = shape->cached_fctm.inverse() * gc->transform;
458 isometry = matrix_is_isometry(cached_to_new);
459 }
460 if (0 != isometry && !is_inner_area(shape->cached_farea, *area))
461 isometry = 0;
462 }
463 if ( isometry == 0 ) {
464 if ( shape->cached_fill == NULL ) shape->cached_fill=new Shape;
465 shape->cached_fill->Reset();
467 Path* thePath=new Path;
468 Shape* theShape=new Shape;
469 {
470 Geom::Matrix tempMat(to_2geom(gc->transform));
471 thePath->LoadPathVector(shape->curve->get_pathvector(), tempMat, true);
472 }
474 if (is_inner_area(*area, NR_ARENA_ITEM(shape)->bbox)) {
475 thePath->Convert(1.0);
476 shape->cached_fpartialy = false;
477 } else {
478 thePath->Convert(area, 1.0);
479 shape->cached_fpartialy = true;
480 }
482 thePath->Fill(theShape, 0);
484 if ( shape->_fill.rule == NRArenaShape::EVEN_ODD ) {
485 shape->cached_fill->ConvertToShape(theShape, fill_oddEven);
486 // alternatively, this speeds up rendering of oddeven shapes but disables AA :(
487 //shape->cached_fill->Copy(theShape);
488 } else {
489 shape->cached_fill->ConvertToShape(theShape, fill_nonZero);
490 }
491 shape->cached_fctm=gc->transform;
492 shape->cached_farea = *area;
493 delete theShape;
494 delete thePath;
495 if ( shape->fill_shp == NULL )
496 shape->fill_shp = new Shape;
498 shape->fill_shp->Copy(shape->cached_fill);
500 } else if ( 2 == isometry ) {
501 if ( shape->fill_shp == NULL ) {
502 shape->fill_shp = new Shape;
503 shape->fill_shp->Copy(shape->cached_fill);
504 }
505 } else {
507 if ( shape->fill_shp == NULL )
508 shape->fill_shp = new Shape;
510 shape->fill_shp->Reset(shape->cached_fill->numberOfPoints(),
511 shape->cached_fill->numberOfEdges());
512 for (int i = 0; i < shape->cached_fill->numberOfPoints(); i++)
513 shape->fill_shp->AddPoint(shape->cached_fill->getPoint(i).x * cached_to_new);
514 if ( isometry == 1 ) {
515 for (int i = 0; i < shape->cached_fill->numberOfEdges(); i++)
516 shape->fill_shp->AddEdge(shape->cached_fill->getEdge(i).st,
517 shape->cached_fill->getEdge(i).en);
518 } else if ( isometry == -1 ) { // need to flip poly.
519 for (int i = 0; i < shape->cached_fill->numberOfEdges(); i++)
520 shape->fill_shp->AddEdge(shape->cached_fill->getEdge(i).en,
521 shape->cached_fill->getEdge(i).st);
522 }
523 shape->fill_shp->ForceToPolygon();
524 shape->fill_shp->needPointsSorting();
525 shape->fill_shp->needEdgesSorting();
526 }
527 shape->delayed_shp |= shape->cached_fpartialy;
528 }
529 }
530 }
532 void
533 nr_arena_shape_update_stroke(NRArenaShape *shape,NRGC* gc, NRRectL *area)
534 {
535 SPStyle* style = shape->style;
537 float const scale = NR::expansion(gc->transform);
539 bool outline = (NR_ARENA_ITEM(shape)->arena->rendermode == Inkscape::RENDERMODE_OUTLINE);
541 if (outline) {
542 // cairo does not need the livarot path for rendering
543 return;
544 }
546 // after switching normal stroke rendering to cairo too, optimize this: lower tolerance, disregard dashes
547 // (since it will only be used for picking, not for rendering)
549 if (outline ||
550 ((shape->_stroke.paint.type() != NRArenaShape::Paint::NONE) &&
551 ( fabs(shape->_stroke.width * scale) > 0.01 ))) { // sinon c'est 0=oon veut pas de bord
553 float style_width = MAX(0.125, shape->_stroke.width * scale);
554 float width;
555 if (outline) {
556 width = 0.5; // 1 pixel wide, independent of zoom
557 } else {
558 width = style_width;
559 }
561 NR::Matrix cached_to_new = NR::identity();
563 int isometry = 0;
564 if ( shape->cached_stroke ) {
565 if (shape->cached_sctm == gc->transform) {
566 isometry = 2; // identity
567 } else {
568 cached_to_new = shape->cached_sctm.inverse() * gc->transform;
569 isometry = matrix_is_isometry(cached_to_new);
570 }
571 if (0 != isometry && !is_inner_area(shape->cached_sarea, *area))
572 isometry = 0;
573 if (0 != isometry && width != shape->cached_width) {
574 // if this happens without setting style, we have just switched to outline or back
575 isometry = 0;
576 }
577 }
579 if ( isometry == 0 ) {
580 if ( shape->cached_stroke == NULL ) shape->cached_stroke=new Shape;
581 shape->cached_stroke->Reset();
582 Path* thePath = new Path;
583 Shape* theShape = new Shape;
584 {
585 Geom::Matrix tempMat( to_2geom(gc->transform) );
586 thePath->LoadPathVector(shape->curve->get_pathvector(), tempMat, true);
587 }
589 // add some padding to the rendering area, so clipped path does not go into a render area
590 NRRectL padded_area = *area;
591 padded_area.x0 -= (NR::ICoord)width;
592 padded_area.x1 += (NR::ICoord)width;
593 padded_area.y0 -= (NR::ICoord)width;
594 padded_area.y1 += (NR::ICoord)width;
595 if ((style->stroke_dash.n_dash && !outline) || is_inner_area(padded_area, NR_ARENA_ITEM(shape)->bbox)) {
596 thePath->Convert((outline) ? 4.0 : 1.0);
597 shape->cached_spartialy = false;
598 }
599 else {
600 thePath->Convert(&padded_area, (outline) ? 4.0 : 1.0);
601 shape->cached_spartialy = true;
602 }
604 if (style->stroke_dash.n_dash && !outline) {
605 thePath->DashPolylineFromStyle(style, scale, 1.0);
606 }
608 ButtType butt=butt_straight;
609 switch (shape->_stroke.cap) {
610 case NRArenaShape::BUTT_CAP:
611 butt = butt_straight;
612 break;
613 case NRArenaShape::ROUND_CAP:
614 butt = butt_round;
615 break;
616 case NRArenaShape::SQUARE_CAP:
617 butt = butt_square;
618 break;
619 }
620 JoinType join=join_straight;
621 switch (shape->_stroke.join) {
622 case NRArenaShape::MITRE_JOIN:
623 join = join_pointy;
624 break;
625 case NRArenaShape::ROUND_JOIN:
626 join = join_round;
627 break;
628 case NRArenaShape::BEVEL_JOIN:
629 join = join_straight;
630 break;
631 }
633 if (outline) {
634 butt = butt_straight;
635 join = join_straight;
636 }
638 thePath->Stroke(theShape, false, 0.5*width, join, butt,
639 0.5*width*shape->_stroke.mitre_limit);
642 if (outline) {
643 // speeds it up, but uses evenodd for the stroke shape (which does not matter for 1-pixel wide outline)
644 shape->cached_stroke->Copy(theShape);
645 } else {
646 shape->cached_stroke->ConvertToShape(theShape, fill_nonZero);
647 }
649 shape->cached_width = width;
651 shape->cached_sctm=gc->transform;
652 shape->cached_sarea = *area;
653 delete thePath;
654 delete theShape;
655 if ( shape->stroke_shp == NULL ) shape->stroke_shp=new Shape;
657 shape->stroke_shp->Copy(shape->cached_stroke);
659 } else if ( 2 == isometry ) {
660 if ( shape->stroke_shp == NULL ) {
661 shape->stroke_shp=new Shape;
662 shape->stroke_shp->Copy(shape->cached_stroke);
663 }
664 } else {
665 if ( shape->stroke_shp == NULL )
666 shape->stroke_shp=new Shape;
667 shape->stroke_shp->Reset(shape->cached_stroke->numberOfPoints(), shape->cached_stroke->numberOfEdges());
668 for (int i = 0; i < shape->cached_stroke->numberOfPoints(); i++)
669 shape->stroke_shp->AddPoint(shape->cached_stroke->getPoint(i).x * cached_to_new);
670 if ( isometry == 1 ) {
671 for (int i = 0; i < shape->cached_stroke->numberOfEdges(); i++)
672 shape->stroke_shp->AddEdge(shape->cached_stroke->getEdge(i).st,
673 shape->cached_stroke->getEdge(i).en);
674 } else if ( isometry == -1 ) {
675 for (int i = 0; i < shape->cached_stroke->numberOfEdges(); i++)
676 shape->stroke_shp->AddEdge(shape->cached_stroke->getEdge(i).en,
677 shape->cached_stroke->getEdge(i).st);
678 }
679 shape->stroke_shp->ForceToPolygon();
680 shape->stroke_shp->needPointsSorting();
681 shape->stroke_shp->needEdgesSorting();
682 }
683 shape->delayed_shp |= shape->cached_spartialy;
684 }
685 }
688 void
689 nr_arena_shape_add_bboxes(NRArenaShape* shape, Geom::Rect &bbox)
690 {
691 /* TODO: are these two if's mutually exclusive? ( i.e. "shape->stroke_shp <=> !shape->fill_shp" )
692 * if so, then this can be written much more compact ! */
694 if ( shape->stroke_shp ) {
695 Shape *larger = shape->stroke_shp;
696 larger->CalcBBox();
697 larger->leftX = floor(larger->leftX);
698 larger->rightX = ceil(larger->rightX);
699 larger->topY = floor(larger->topY);
700 larger->bottomY = ceil(larger->bottomY);
701 Geom::Rect stroke_bbox( Geom::Interval(larger->leftX, larger->rightX),
702 Geom::Interval(larger->topY, larger->bottomY) );
703 bbox.unionWith(stroke_bbox);
704 }
706 if ( shape->fill_shp ) {
707 Shape *larger = shape->fill_shp;
708 larger->CalcBBox();
709 larger->leftX = floor(larger->leftX);
710 larger->rightX = ceil(larger->rightX);
711 larger->topY = floor(larger->topY);
712 larger->bottomY = ceil(larger->bottomY);
713 Geom::Rect fill_bbox( Geom::Interval(larger->leftX, larger->rightX),
714 Geom::Interval(larger->topY, larger->bottomY) );
715 bbox.unionWith(fill_bbox);
716 }
717 }
719 // cairo outline rendering:
720 static unsigned int
721 cairo_arena_shape_render_outline(cairo_t *ct, NRArenaItem *item, NR::Maybe<NR::Rect> area)
722 {
723 NRArenaShape *shape = NR_ARENA_SHAPE(item);
725 if (!ct)
726 return item->state;
728 guint32 rgba = NR_ARENA_ITEM(shape)->arena->outlinecolor;
729 // FIXME: we use RGBA buffers but cairo writes BGRA (on i386), so we must cheat
730 // by setting color channels in the "wrong" order
731 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));
733 cairo_set_line_width(ct, 0.5);
734 cairo_set_tolerance(ct, 1.25); // low quality, but good enough for outline mode
735 cairo_new_path(ct);
737 feed_pathvector_to_cairo (ct, shape->curve->get_pathvector(), to_2geom(shape->ctm), area, true, 0);
739 cairo_stroke(ct);
741 return item->state;
742 }
744 // cairo stroke rendering (flat color only so far!):
745 // works on canvas, but wrongs the colors in nonpremul buffers: icons and png export
746 // (need to switch them to premul before this can be enabled)
747 void
748 cairo_arena_shape_render_stroke(NRArenaItem *item, NRRectL *area, NRPixBlock *pb)
749 {
750 NRArenaShape *shape = NR_ARENA_SHAPE(item);
751 SPStyle const *style = shape->style;
753 float const scale = NR::expansion(shape->ctm);
755 if (fabs(shape->_stroke.width * scale) < 0.01)
756 return;
758 cairo_t *ct = nr_create_cairo_context (area, pb);
760 if (!ct)
761 return;
763 guint32 rgba;
764 if ( item->render_opacity ) {
765 rgba = shape->_stroke.paint.color().toRGBA32( shape->_stroke.opacity *
766 SP_SCALE24_TO_FLOAT(style->opacity.value) );
767 } else {
768 rgba = shape->_stroke.paint.color().toRGBA32( shape->_stroke.opacity );
769 }
771 // FIXME: we use RGBA buffers but cairo writes BGRA (on i386), so we must cheat
772 // by setting color channels in the "wrong" order
773 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));
775 float style_width = MAX(0.125, shape->_stroke.width * scale);
776 cairo_set_line_width(ct, style_width);
778 switch (shape->_stroke.cap) {
779 case NRArenaShape::BUTT_CAP:
780 cairo_set_line_cap(ct, CAIRO_LINE_CAP_BUTT);
781 break;
782 case NRArenaShape::ROUND_CAP:
783 cairo_set_line_cap(ct, CAIRO_LINE_CAP_ROUND);
784 break;
785 case NRArenaShape::SQUARE_CAP:
786 cairo_set_line_cap(ct, CAIRO_LINE_CAP_SQUARE);
787 break;
788 }
789 switch (shape->_stroke.join) {
790 case NRArenaShape::MITRE_JOIN:
791 cairo_set_line_join(ct, CAIRO_LINE_JOIN_MITER);
792 break;
793 case NRArenaShape::ROUND_JOIN:
794 cairo_set_line_join(ct, CAIRO_LINE_JOIN_ROUND);
795 break;
796 case NRArenaShape::BEVEL_JOIN:
797 cairo_set_line_join(ct, CAIRO_LINE_JOIN_BEVEL);
798 break;
799 }
801 cairo_set_miter_limit (ct, style->stroke_miterlimit.value);
803 if (style->stroke_dash.n_dash) {
804 NRVpathDash dash;
805 dash.offset = style->stroke_dash.offset * scale;
806 dash.n_dash = style->stroke_dash.n_dash;
807 dash.dash = g_new(double, dash.n_dash);
808 for (int i = 0; i < dash.n_dash; i++) {
809 dash.dash[i] = style->stroke_dash.dash[i] * scale;
810 }
811 cairo_set_dash (ct, dash.dash, dash.n_dash, dash.offset);
812 g_free(dash.dash);
813 }
815 cairo_set_tolerance(ct, 0.1);
816 cairo_new_path(ct);
818 feed_pathvector_to_cairo (ct, shape->curve->get_pathvector(), to_2geom(shape->ctm), area->upgrade(), true, style_width);
820 cairo_stroke(ct);
822 cairo_surface_t *cst = cairo_get_target(ct);
823 cairo_destroy (ct);
824 cairo_surface_finish (cst);
825 cairo_surface_destroy (cst);
827 pb->empty = FALSE;
828 }
831 /**
832 * Renders the item. Markers are just composed into the parent buffer.
833 */
834 static unsigned int
835 nr_arena_shape_render(cairo_t *ct, NRArenaItem *item, NRRectL *area, NRPixBlock *pb, unsigned int flags)
836 {
837 NRArenaShape *shape = NR_ARENA_SHAPE(item);
839 if (!shape->curve) return item->state;
840 if (!shape->style) return item->state;
842 bool outline = (NR_ARENA_ITEM(shape)->arena->rendermode == Inkscape::RENDERMODE_OUTLINE);
844 if (outline) { // cairo outline rendering
846 pb->empty = FALSE;
847 unsigned int ret = cairo_arena_shape_render_outline (ct, item, (&pb->area)->upgrade());
848 if (ret & NR_ARENA_ITEM_STATE_INVALID) return ret;
850 } else {
852 if ( shape->delayed_shp ) {
853 if ( nr_rect_l_test_intersect_ptr(area, &item->bbox) ) {
854 NRGC tempGC(NULL);
855 tempGC.transform=shape->ctm;
856 shape->delayed_shp = false;
857 nr_arena_shape_update_stroke(shape,&tempGC,&pb->visible_area);
858 nr_arena_shape_update_fill(shape,&tempGC,&pb->visible_area);
859 /* NRRect bbox;
860 bbox.x0 = bbox.y0 = bbox.x1 = bbox.y1 = 0.0;
861 nr_arena_shape_add_bboxes(shape,bbox);
862 item->bbox.x0 = (gint32)(bbox.x0 - 1.0F);
863 item->bbox.y0 = (gint32)(bbox.y0 - 1.0F);
864 item->bbox.x1 = (gint32)(bbox.x1 + 1.0F);
865 item->bbox.y1 = (gint32)(bbox.y1 + 1.0F);
866 shape->approx_bbox=item->bbox;*/
867 } else {
868 return item->state;
869 }
870 }
872 SPStyle const *style = shape->style;
873 if (shape->fill_shp) {
874 NRPixBlock m;
875 guint32 rgba;
877 nr_pixblock_setup_fast(&m, NR_PIXBLOCK_MODE_A8, area->x0, area->y0, area->x1, area->y1, TRUE);
879 // if memory allocation failed, abort render
880 if (m.size != NR_PIXBLOCK_SIZE_TINY && m.data.px == NULL) {
881 nr_pixblock_release (&m);
882 return (item->state);
883 }
885 m.visible_area = pb->visible_area;
886 nr_pixblock_render_shape_mask_or(m,shape->fill_shp);
887 m.empty = FALSE;
889 if (shape->_fill.paint.type() == NRArenaShape::Paint::NONE) {
890 // do not render fill in any way
891 } else if (shape->_fill.paint.type() == NRArenaShape::Paint::COLOR) {
892 if ( item->render_opacity ) {
893 rgba = shape->_fill.paint.color().toRGBA32( shape->_fill.opacity *
894 SP_SCALE24_TO_FLOAT(style->opacity.value) );
895 } else {
896 rgba = shape->_fill.paint.color().toRGBA32( shape->_fill.opacity );
897 }
898 nr_blit_pixblock_mask_rgba32(pb, &m, rgba);
899 pb->empty = FALSE;
900 } else if (shape->_fill.paint.type() == NRArenaShape::Paint::SERVER) {
901 if (shape->fill_painter) {
902 nr_arena_render_paintserver_fill(pb, area, shape->fill_painter, shape->_fill.opacity, &m);
903 }
904 }
906 nr_pixblock_release(&m);
907 }
909 if (shape->stroke_shp && shape->_stroke.paint.type() == NRArenaShape::Paint::COLOR) {
911 // cairo_arena_shape_render_stroke(item, area, pb);
913 guint32 rgba;
914 NRPixBlock m;
916 nr_pixblock_setup_fast(&m, NR_PIXBLOCK_MODE_A8, area->x0, area->y0, area->x1, area->y1, TRUE);
918 // if memory allocation failed, abort render
919 if (m.size != NR_PIXBLOCK_SIZE_TINY && m.data.px == NULL) {
920 nr_pixblock_release (&m);
921 return (item->state);
922 }
924 m.visible_area = pb->visible_area;
925 nr_pixblock_render_shape_mask_or(m, shape->stroke_shp);
926 m.empty = FALSE;
928 if ( item->render_opacity ) {
929 rgba = shape->_stroke.paint.color().toRGBA32( shape->_stroke.opacity *
930 SP_SCALE24_TO_FLOAT(style->opacity.value) );
931 } else {
932 rgba = shape->_stroke.paint.color().toRGBA32( shape->_stroke.opacity );
933 }
934 nr_blit_pixblock_mask_rgba32(pb, &m, rgba);
935 pb->empty = FALSE;
937 nr_pixblock_release(&m);
939 } else if (shape->stroke_shp && shape->_stroke.paint.type() == NRArenaShape::Paint::SERVER) {
941 NRPixBlock m;
943 nr_pixblock_setup_fast(&m, NR_PIXBLOCK_MODE_A8, area->x0, area->y0, area->x1, area->y1, TRUE);
945 // if memory allocation failed, abort render
946 if (m.size != NR_PIXBLOCK_SIZE_TINY && m.data.px == NULL) {
947 nr_pixblock_release (&m);
948 return (item->state);
949 }
951 m.visible_area = pb->visible_area;
952 nr_pixblock_render_shape_mask_or(m, shape->stroke_shp);
953 m.empty = FALSE;
955 if (shape->stroke_painter) {
956 nr_arena_render_paintserver_fill(pb, area, shape->stroke_painter, shape->_stroke.opacity, &m);
957 }
959 nr_pixblock_release(&m);
960 }
962 } // non-cairo non-outline branch
964 /* Render markers into parent buffer */
965 for (NRArenaItem *child = shape->markers; child != NULL; child = child->next) {
966 unsigned int ret = nr_arena_item_invoke_render(ct, child, area, pb, flags);
967 if (ret & NR_ARENA_ITEM_STATE_INVALID) return ret;
968 }
970 return item->state;
971 }
974 // cairo clipping: this basically works except for the stride-must-be-divisible-by-4 cairo bug;
975 // reenable this when the bug is fixed and remove the rest of this function
976 // TODO
977 #if defined(DEADCODE) && !defined(DEADCODE)
978 static guint
979 cairo_arena_shape_clip(NRArenaItem *item, NRRectL *area, NRPixBlock *pb)
980 {
981 NRArenaShape *shape = NR_ARENA_SHAPE(item);
982 if (!shape->curve) return item->state;
984 cairo_t *ct = nr_create_cairo_context (area, pb);
986 if (!ct)
987 return item->state;
989 cairo_set_source_rgba(ct, 0, 0, 0, 1);
991 cairo_new_path(ct);
993 feed_pathvector_to_cairo (ct, shape->curve->get_pathvector(), to_2geom(shape->ctm), (area)->upgrade(), false, 0);
995 cairo_fill(ct);
997 cairo_surface_t *cst = cairo_get_target(ct);
998 cairo_destroy (ct);
999 cairo_surface_finish (cst);
1000 cairo_surface_destroy (cst);
1002 pb->empty = FALSE;
1004 return item->state;
1005 }
1006 #endif //defined(DEADCODE) && !defined(DEADCODE)
1009 static guint
1010 nr_arena_shape_clip(NRArenaItem *item, NRRectL *area, NRPixBlock *pb)
1011 {
1012 //return cairo_arena_shape_clip(item, area, pb);
1014 NRArenaShape *shape = NR_ARENA_SHAPE(item);
1015 if (!shape->curve) return item->state;
1017 if ( shape->delayed_shp || shape->fill_shp == NULL) { // we need a fill shape no matter what
1018 if ( nr_rect_l_test_intersect_ptr(area, &item->bbox) ) {
1019 NRGC tempGC(NULL);
1020 tempGC.transform=shape->ctm;
1021 shape->delayed_shp = false;
1022 nr_arena_shape_update_fill(shape, &tempGC, &pb->visible_area, true);
1023 } else {
1024 return item->state;
1025 }
1026 }
1028 if ( shape->fill_shp ) {
1029 NRPixBlock m;
1031 /* fixme: We can OR in one step (Lauris) */
1032 nr_pixblock_setup_fast(&m, NR_PIXBLOCK_MODE_A8, area->x0, area->y0, area->x1, area->y1, TRUE);
1034 // if memory allocation failed, abort
1035 if (m.size != NR_PIXBLOCK_SIZE_TINY && m.data.px == NULL) {
1036 nr_pixblock_release (&m);
1037 return (item->state);
1038 }
1040 m.visible_area = pb->visible_area;
1041 nr_pixblock_render_shape_mask_or(m,shape->fill_shp);
1043 for (int y = area->y0; y < area->y1; y++) {
1044 unsigned char *s, *d;
1045 s = NR_PIXBLOCK_PX(&m) + (y - area->y0) * m.rs;
1046 d = NR_PIXBLOCK_PX(pb) + (y - area->y0) * pb->rs;
1047 for (int x = area->x0; x < area->x1; x++) {
1048 *d = NR_COMPOSEA_111(*s, *d);
1049 d ++;
1050 s ++;
1051 }
1052 }
1053 nr_pixblock_release(&m);
1054 pb->empty = FALSE;
1055 }
1057 return item->state;
1058 }
1060 static NRArenaItem *
1061 nr_arena_shape_pick(NRArenaItem *item, NR::Point p, double delta, unsigned int /*sticky*/)
1062 {
1063 NRArenaShape *shape = NR_ARENA_SHAPE(item);
1065 if (shape->repick_after > 0)
1066 shape->repick_after--;
1068 if (shape->repick_after > 0) // we are a slow, huge path. skip this pick, returning what was returned last time
1069 return shape->last_pick;
1071 if (!shape->curve) return NULL;
1072 if (!shape->style) return NULL;
1074 bool outline = (NR_ARENA_ITEM(shape)->arena->rendermode == Inkscape::RENDERMODE_OUTLINE);
1076 if (SP_SCALE24_TO_FLOAT(shape->style->opacity.value) == 0 && !outline)
1077 // fully transparent, no pick unless outline mode
1078 return NULL;
1080 GTimeVal tstart, tfinish;
1081 g_get_current_time (&tstart);
1083 double width;
1084 if (outline) {
1085 width = 0.5;
1086 } else if (shape->_stroke.paint.type() != NRArenaShape::Paint::NONE && shape->_stroke.opacity > 1e-3) {
1087 float const scale = NR::expansion(shape->ctm);
1088 width = MAX(0.125, shape->_stroke.width * scale) / 2;
1089 } else {
1090 width = 0;
1091 }
1093 double dist = NR_HUGE;
1094 int wind = 0;
1095 bool needfill = (shape->_fill.paint.type() != NRArenaShape::Paint::NONE
1096 && shape->_fill.opacity > 1e-3 && !outline);
1098 if (item->arena->canvasarena) {
1099 Geom::Rect viewbox = to_2geom(item->arena->canvasarena->item.canvas->getViewbox());
1100 viewbox.expandBy (width);
1101 pathv_matrix_point_bbox_wind_distance(shape->curve->get_pathvector(), to_2geom(shape->ctm), to_2geom(p), NULL, needfill? &wind : NULL, &dist, 0.5, &viewbox);
1102 } else {
1103 pathv_matrix_point_bbox_wind_distance(shape->curve->get_pathvector(), to_2geom(shape->ctm), to_2geom(p), NULL, needfill? &wind : NULL, &dist, 0.5, NULL);
1104 }
1106 g_get_current_time (&tfinish);
1107 glong this_pick = (tfinish.tv_sec - tstart.tv_sec) * 1000000 + (tfinish.tv_usec - tstart.tv_usec);
1108 //g_print ("pick time %lu\n", this_pick);
1110 if (this_pick > 10000) { // slow picking, remember to skip several new picks
1111 shape->repick_after = this_pick / 5000;
1112 }
1114 // covered by fill?
1115 if (needfill) {
1116 if (!shape->style->fill_rule.computed) {
1117 if (wind != 0) {
1118 shape->last_pick = item;
1119 return item;
1120 }
1121 } else {
1122 if (wind & 0x1) {
1123 shape->last_pick = item;
1124 return item;
1125 }
1126 }
1127 }
1129 // close to the edge, as defined by strokewidth and delta?
1130 // this ignores dashing (as if the stroke is solid) and always works as if caps are round
1131 if (needfill || width > 0) { // if either fill or stroke visible,
1132 if ((dist - width) < delta) {
1133 shape->last_pick = item;
1134 return item;
1135 }
1136 }
1138 // if not picked on the shape itself, try its markers
1139 for (NRArenaItem *child = shape->markers; child != NULL; child = child->next) {
1140 NRArenaItem *ret = nr_arena_item_invoke_pick(child, p, delta, 0);
1141 if (ret) {
1142 shape->last_pick = item;
1143 return item;
1144 }
1145 }
1147 shape->last_pick = NULL;
1148 return NULL;
1149 }
1151 /**
1152 *
1153 * Requests a render of the shape, then if the shape is already a curve it
1154 * unrefs the old curve; if the new curve is valid it creates a copy of the
1155 * curve and adds it to the shape. Finally, it requests an update of the
1156 * arena for the shape.
1157 */
1158 void nr_arena_shape_set_path(NRArenaShape *shape, SPCurve *curve,bool justTrans)
1159 {
1160 g_return_if_fail(shape != NULL);
1161 g_return_if_fail(NR_IS_ARENA_SHAPE(shape));
1163 if ( justTrans == false ) {
1164 // dirty cached versions
1165 if ( shape->cached_fill ) {
1166 delete shape->cached_fill;
1167 shape->cached_fill=NULL;
1168 }
1169 if ( shape->cached_stroke ) {
1170 delete shape->cached_stroke;
1171 shape->cached_stroke=NULL;
1172 }
1173 }
1175 nr_arena_item_request_render(NR_ARENA_ITEM(shape));
1177 if (shape->curve) {
1178 shape->curve->unref();
1179 shape->curve = NULL;
1180 }
1182 if (curve) {
1183 shape->curve = curve;
1184 curve->ref();
1185 }
1187 nr_arena_item_request_update(NR_ARENA_ITEM(shape), NR_ARENA_ITEM_STATE_ALL, FALSE);
1188 }
1190 void NRArenaShape::setFill(SPPaintServer *server) {
1191 _fill.paint.set(server);
1192 _invalidateCachedFill();
1193 }
1195 void NRArenaShape::setFill(SPColor const &color) {
1196 _fill.paint.set(color);
1197 _invalidateCachedFill();
1198 }
1200 void NRArenaShape::setFillOpacity(double opacity) {
1201 _fill.opacity = opacity;
1202 _invalidateCachedFill();
1203 }
1205 void NRArenaShape::setFillRule(NRArenaShape::FillRule rule) {
1206 _fill.rule = rule;
1207 _invalidateCachedFill();
1208 }
1210 void NRArenaShape::setStroke(SPPaintServer *server) {
1211 _stroke.paint.set(server);
1212 _invalidateCachedStroke();
1213 }
1215 void NRArenaShape::setStroke(SPColor const &color) {
1216 _stroke.paint.set(color);
1217 _invalidateCachedStroke();
1218 }
1220 void NRArenaShape::setStrokeOpacity(double opacity) {
1221 _stroke.opacity = opacity;
1222 _invalidateCachedStroke();
1223 }
1225 void NRArenaShape::setStrokeWidth(double width) {
1226 _stroke.width = width;
1227 _invalidateCachedStroke();
1228 }
1230 void NRArenaShape::setMitreLimit(double limit) {
1231 _stroke.mitre_limit = limit;
1232 _invalidateCachedStroke();
1233 }
1235 void NRArenaShape::setLineCap(NRArenaShape::CapType cap) {
1236 _stroke.cap = cap;
1237 _invalidateCachedStroke();
1238 }
1240 void NRArenaShape::setLineJoin(NRArenaShape::JoinType join) {
1241 _stroke.join = join;
1242 _invalidateCachedStroke();
1243 }
1245 /** nr_arena_shape_set_style
1246 *
1247 * Unrefs any existing style and ref's to the given one, then requests an update of the arena
1248 */
1249 void
1250 nr_arena_shape_set_style(NRArenaShape *shape, SPStyle *style)
1251 {
1252 g_return_if_fail(shape != NULL);
1253 g_return_if_fail(NR_IS_ARENA_SHAPE(shape));
1255 if (style) sp_style_ref(style);
1256 if (shape->style) sp_style_unref(shape->style);
1257 shape->style = style;
1259 if ( style->fill.isPaintserver() ) {
1260 shape->setFill(style->getFillPaintServer());
1261 } else if ( style->fill.isColor() ) {
1262 shape->setFill(style->fill.value.color);
1263 } else if ( style->fill.isNone() ) {
1264 shape->setFill(NULL);
1265 } else {
1266 g_assert_not_reached();
1267 }
1268 shape->setFillOpacity(SP_SCALE24_TO_FLOAT(style->fill_opacity.value));
1269 switch (style->fill_rule.computed) {
1270 case SP_WIND_RULE_EVENODD: {
1271 shape->setFillRule(NRArenaShape::EVEN_ODD);
1272 break;
1273 }
1274 case SP_WIND_RULE_NONZERO: {
1275 shape->setFillRule(NRArenaShape::NONZERO);
1276 break;
1277 }
1278 default: {
1279 g_assert_not_reached();
1280 }
1281 }
1283 if ( style->stroke.isPaintserver() ) {
1284 shape->setStroke(style->getStrokePaintServer());
1285 } else if ( style->stroke.isColor() ) {
1286 shape->setStroke(style->stroke.value.color);
1287 } else if ( style->stroke.isNone() ) {
1288 shape->setStroke(NULL);
1289 } else {
1290 g_assert_not_reached();
1291 }
1292 shape->setStrokeWidth(style->stroke_width.computed);
1293 shape->setStrokeOpacity(SP_SCALE24_TO_FLOAT(style->stroke_opacity.value));
1294 switch (style->stroke_linecap.computed) {
1295 case SP_STROKE_LINECAP_ROUND: {
1296 shape->setLineCap(NRArenaShape::ROUND_CAP);
1297 break;
1298 }
1299 case SP_STROKE_LINECAP_SQUARE: {
1300 shape->setLineCap(NRArenaShape::SQUARE_CAP);
1301 break;
1302 }
1303 case SP_STROKE_LINECAP_BUTT: {
1304 shape->setLineCap(NRArenaShape::BUTT_CAP);
1305 break;
1306 }
1307 default: {
1308 g_assert_not_reached();
1309 }
1310 }
1311 switch (style->stroke_linejoin.computed) {
1312 case SP_STROKE_LINEJOIN_ROUND: {
1313 shape->setLineJoin(NRArenaShape::ROUND_JOIN);
1314 break;
1315 }
1316 case SP_STROKE_LINEJOIN_BEVEL: {
1317 shape->setLineJoin(NRArenaShape::BEVEL_JOIN);
1318 break;
1319 }
1320 case SP_STROKE_LINEJOIN_MITER: {
1321 shape->setLineJoin(NRArenaShape::MITRE_JOIN);
1322 break;
1323 }
1324 default: {
1325 g_assert_not_reached();
1326 }
1327 }
1328 shape->setMitreLimit(style->stroke_miterlimit.value);
1330 //if shape has a filter
1331 if (style->filter.set && style->getFilter()) {
1332 if (!shape->filter) {
1333 int primitives = sp_filter_primitive_count(SP_FILTER(style->getFilter()));
1334 shape->filter = new NR::Filter(primitives);
1335 }
1336 sp_filter_build_renderer(SP_FILTER(style->getFilter()), shape->filter);
1337 } else {
1338 //no filter set for this shape
1339 delete shape->filter;
1340 shape->filter = NULL;
1341 }
1343 nr_arena_item_request_update(shape, NR_ARENA_ITEM_STATE_ALL, FALSE);
1344 }
1346 void
1347 nr_arena_shape_set_paintbox(NRArenaShape *shape, NRRect const *pbox)
1348 {
1349 g_return_if_fail(shape != NULL);
1350 g_return_if_fail(NR_IS_ARENA_SHAPE(shape));
1351 g_return_if_fail(pbox != NULL);
1353 if ((pbox->x0 < pbox->x1) && (pbox->y0 < pbox->y1)) {
1354 shape->paintbox = *pbox;
1355 } else {
1356 /* fixme: We kill warning, although not sure what to do here (Lauris) */
1357 shape->paintbox.x0 = shape->paintbox.y0 = 0.0F;
1358 shape->paintbox.x1 = shape->paintbox.y1 = 256.0F;
1359 }
1361 nr_arena_item_request_update(shape, NR_ARENA_ITEM_STATE_ALL, FALSE);
1362 }
1364 void NRArenaShape::setPaintBox(NR::Rect const &pbox)
1365 {
1366 paintbox.x0 = pbox.min()[NR::X];
1367 paintbox.y0 = pbox.min()[NR::Y];
1368 paintbox.x1 = pbox.max()[NR::X];
1369 paintbox.y1 = pbox.max()[NR::Y];
1371 nr_arena_item_request_update(this, NR_ARENA_ITEM_STATE_ALL, FALSE);
1372 }
1374 static void
1375 shape_run_A8_OR(raster_info &dest,void */*data*/,int st,float vst,int en,float ven)
1376 {
1377 if ( st >= en ) return;
1378 if ( vst < 0 ) vst=0;
1379 if ( vst > 1 ) vst=1;
1380 if ( ven < 0 ) ven=0;
1381 if ( ven > 1 ) ven=1;
1382 float sv=vst;
1383 float dv=ven-vst;
1384 int len=en-st;
1385 unsigned char* d=(unsigned char*)dest.buffer;
1386 d+=(st-dest.startPix);
1387 if ( fabs(dv) < 0.001 ) {
1388 if ( vst > 0.999 ) {
1389 /* Simple copy */
1390 while (len > 0) {
1391 d[0] = 255;
1392 d += 1;
1393 len -= 1;
1394 }
1395 } else {
1396 sv*=256;
1397 unsigned int c0_24=(int)sv;
1398 c0_24&=0xFF;
1399 while (len > 0) {
1400 /* Draw */
1401 d[0] = NR_COMPOSEA_111(c0_24,d[0]);
1402 d += 1;
1403 len -= 1;
1404 }
1405 }
1406 } else {
1407 if ( en <= st+1 ) {
1408 sv=0.5*(vst+ven);
1409 sv*=256;
1410 unsigned int c0_24=(int)sv;
1411 c0_24&=0xFF;
1412 /* Draw */
1413 d[0] = NR_COMPOSEA_111(c0_24,d[0]);
1414 } else {
1415 dv/=len;
1416 sv+=0.5*dv; // correction trapezoidale
1417 sv*=16777216;
1418 dv*=16777216;
1419 int c0_24 = static_cast<int>(CLAMP(sv, 0, 16777216));
1420 int s0_24 = static_cast<int>(dv);
1421 while (len > 0) {
1422 unsigned int ca;
1423 /* Draw */
1424 ca = c0_24 >> 16;
1425 if ( ca > 255 ) ca=255;
1426 d[0] = NR_COMPOSEA_111(ca,d[0]);
1427 d += 1;
1428 c0_24 += s0_24;
1429 c0_24 = CLAMP(c0_24, 0, 16777216);
1430 len -= 1;
1431 }
1432 }
1433 }
1434 }
1436 void nr_pixblock_render_shape_mask_or(NRPixBlock &m,Shape* theS)
1437 {
1438 theS->CalcBBox();
1439 float l = theS->leftX, r = theS->rightX, t = theS->topY, b = theS->bottomY;
1440 int il,ir,it,ib;
1441 il=(int)floor(l);
1442 ir=(int)ceil(r);
1443 it=(int)floor(t);
1444 ib=(int)ceil(b);
1446 if ( il >= m.area.x1 || ir <= m.area.x0 || it >= m.area.y1 || ib <= m.area.y0 ) return;
1447 if ( il < m.area.x0 ) il=m.area.x0;
1448 if ( it < m.area.y0 ) it=m.area.y0;
1449 if ( ir > m.area.x1 ) ir=m.area.x1;
1450 if ( ib > m.area.y1 ) ib=m.area.y1;
1452 /* This is the FloatLigne version. See svn (prior to Apr 2006) for versions using BitLigne or direct BitLigne. */
1453 int curPt;
1454 float curY;
1455 theS->BeginQuickRaster(curY, curPt);
1457 FloatLigne *theI = new FloatLigne();
1458 IntLigne *theIL = new IntLigne();
1460 theS->DirectQuickScan(curY, curPt, (float) it, true, 1.0);
1462 char *mdata = (char*)m.data.px;
1463 if ( m.size == NR_PIXBLOCK_SIZE_TINY ) mdata=(char*)m.data.p;
1464 uint32_t *ligStart = ((uint32_t*)(mdata + ((il - m.area.x0) + m.rs * (it - m.area.y0))));
1465 for (int y = it; y < ib; y++) {
1466 theI->Reset();
1467 theS->QuickScan(curY, curPt, ((float)(y+1)), theI, 1.0);
1468 theI->Flatten();
1469 theIL->Copy(theI);
1471 raster_info dest;
1472 dest.startPix=il;
1473 dest.endPix=ir;
1474 dest.sth=il;
1475 dest.stv=y;
1476 dest.buffer=ligStart;
1477 theIL->Raster(dest, NULL, shape_run_A8_OR);
1478 ligStart=((uint32_t*)(((char*)ligStart)+m.rs));
1479 }
1480 theS->EndQuickRaster();
1481 delete theI;
1482 delete theIL;
1483 }
1486 /*
1487 Local Variables:
1488 mode:c++
1489 c-file-style:"stroustrup"
1490 c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
1491 indent-tabs-mode:nil
1492 fill-column:99
1493 End:
1494 */
1495 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=99 :