src/display/nr-arena-shape.cpp

   1 #define __NR_ARENA_SHAPE_C__
   2
   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  */
  14
  15
  16
  17 #include <display/nr-arena.h>
  18 #include <display/nr-arena-shape.h>
  19 #include "display/nr-filter.h"
  20 #include "display/nr-filter-gaussian.h"
  21 #include "display/nr-filter-types.h"
  22 #include <libnr/n-art-bpath.h>
  23 #include <libnr/nr-path.h>
  24 #include <libnr/nr-pixops.h>
  25 #include <libnr/nr-matrix-ops.h>
  26 #include <libnr/nr-matrix-fns.h>
  27 #include <libnr/nr-blit.h>
  28 #include <livarot/Path.h>
  29 #include <livarot/float-line.h>
  30 #include <livarot/int-line.h>
  31 #include <style.h>
  32 /* prefs-utils used for deciding, whether to run filtering test or not */
  33 #include "prefs-utils.h"
  34 #include "sp-filter.h"
  35 #include "sp-gaussian-blur.h"
  36
  37 //int  showRuns=0;
  38 void nr_pixblock_render_shape_mask_or(NRPixBlock &m,Shape* theS);
  39
  40 static void nr_arena_shape_class_init(NRArenaShapeClass *klass);
  41 static void nr_arena_shape_init(NRArenaShape *shape);
  42 static void nr_arena_shape_finalize(NRObject *object);
  43
  44 static NRArenaItem *nr_arena_shape_children(NRArenaItem *item);
  45 static void nr_arena_shape_add_child(NRArenaItem *item, NRArenaItem *child, NRArenaItem *ref);
  46 static void nr_arena_shape_remove_child(NRArenaItem *item, NRArenaItem *child);
  47 static void nr_arena_shape_set_child_position(NRArenaItem *item, NRArenaItem *child, NRArenaItem *ref);
  48
  49 static guint nr_arena_shape_update(NRArenaItem *item, NRRectL *area, NRGC *gc, guint state, guint reset);
  50 static unsigned int nr_arena_shape_render(NRArenaItem *item, NRRectL *area, NRPixBlock *pb, unsigned int flags);
  51 static guint nr_arena_shape_clip(NRArenaItem *item, NRRectL *area, NRPixBlock *pb);
  52 static NRArenaItem *nr_arena_shape_pick(NRArenaItem *item, NR::Point p, double delta, unsigned int sticky);
  53
  54 static NRArenaItemClass *shape_parent_class;
  55
  56 NRType
  57 nr_arena_shape_get_type(void)
  58 {
  59     static NRType type = 0;
  60     if (!type) {
  61         type = nr_object_register_type(NR_TYPE_ARENA_ITEM,
  62                                        "NRArenaShape",
  63                                        sizeof(NRArenaShapeClass),
  64                                        sizeof(NRArenaShape),
  65                                        (void (*)(NRObjectClass *)) nr_arena_shape_class_init,
  66                                        (void (*)(NRObject *)) nr_arena_shape_init);
  67     }
  68     return type;
  69 }
  70
  71 static void
  72 nr_arena_shape_class_init(NRArenaShapeClass *klass)
  73 {
  74     NRObjectClass *object_class;
  75     NRArenaItemClass *item_class;
  76
  77     object_class = (NRObjectClass *) klass;
  78     item_class = (NRArenaItemClass *) klass;
  79
  80     shape_parent_class = (NRArenaItemClass *)  ((NRObjectClass *) klass)->parent;
  81
  82     object_class->finalize = nr_arena_shape_finalize;
  83     object_class->cpp_ctor = NRObject::invoke_ctor<NRArenaShape>;
  84
  85     item_class->children = nr_arena_shape_children;
  86     item_class->add_child = nr_arena_shape_add_child;
  87     item_class->set_child_position = nr_arena_shape_set_child_position;
  88     item_class->remove_child = nr_arena_shape_remove_child;
  89     item_class->update = nr_arena_shape_update;
  90     item_class->render = nr_arena_shape_render;
  91     item_class->clip = nr_arena_shape_clip;
  92     item_class->pick = nr_arena_shape_pick;
  93 }
  94
  95 /**
  96  * Initializes the arena shape, setting all parameters to null, 0, false,
  97  * or other defaults
  98  */
  99 static void
 100 nr_arena_shape_init(NRArenaShape *shape)
 101 {
 102     shape->curve = NULL;
 103     shape->style = NULL;
 104     shape->paintbox.x0 = shape->paintbox.y0 = 0.0F;
 105     shape->paintbox.x1 = shape->paintbox.y1 = 256.0F;
 106
 107     nr_matrix_set_identity(&shape->ctm);
 108     shape->fill_painter = NULL;
 109     shape->stroke_painter = NULL;
 110     shape->cached_fill = NULL;
 111     shape->cached_stroke = NULL;
 112     shape->cached_fpartialy = false;
 113     shape->cached_spartialy = false;
 114     shape->fill_shp = NULL;
 115     shape->stroke_shp = NULL;
 116
 117     shape->delayed_shp = false;
 118
 119     shape->approx_bbox.x0 = shape->approx_bbox.y0 = 0;
 120     shape->approx_bbox.x1 = shape->approx_bbox.y1 = 0;
 121     nr_matrix_set_identity(&shape->cached_fctm);
 122     nr_matrix_set_identity(&shape->cached_sctm);
 123
 124     shape->markers = NULL;
 125 }
 126
 127 static void
 128 nr_arena_shape_finalize(NRObject *object)
 129 {
 130     NRArenaShape *shape = (NRArenaShape *) object;
 131
 132     if (shape->fill_shp) delete shape->fill_shp;
 133     if (shape->stroke_shp) delete shape->stroke_shp;
 134     if (shape->cached_fill) delete shape->cached_fill;
 135     if (shape->cached_stroke) delete shape->cached_stroke;
 136     if (shape->fill_painter) sp_painter_free(shape->fill_painter);
 137     if (shape->stroke_painter) sp_painter_free(shape->stroke_painter);
 138
 139     if (shape->style) sp_style_unref(shape->style);
 140     if (shape->curve) sp_curve_unref(shape->curve);
 141
 142     ((NRObjectClass *) shape_parent_class)->finalize(object);
 143 }
 144
 145 /**
 146  * Retrieves the markers from the item
 147  */
 148 static NRArenaItem *
 149 nr_arena_shape_children(NRArenaItem *item)
 150 {
 151     NRArenaShape *shape = (NRArenaShape *) item;
 152
 153     return shape->markers;
 154 }
 155
 156 /**
 157  * Attaches child to item, and if ref is not NULL, sets it and ref->next as
 158  * the prev and next items.  If ref is NULL, then it sets the item's markers
 159  * as the next items.
 160  */
 161 static void
 162 nr_arena_shape_add_child(NRArenaItem *item, NRArenaItem *child, NRArenaItem *ref)
 163 {
 164     NRArenaShape *shape = (NRArenaShape *) item;
 165
 166     if (!ref) {
 167         shape->markers = nr_arena_item_attach(item, child, NULL, shape->markers);
 168     } else {
 169         ref->next = nr_arena_item_attach(item, child, ref, ref->next);
 170     }
 171
 172     nr_arena_item_request_update(item, NR_ARENA_ITEM_STATE_ALL, FALSE);
 173 }
 174
 175 /**
 176  * Removes child from the shape.  If there are no prev items in
 177  * the child, it sets items' markers to the next item in the child.
 178  */
 179 static void
 180 nr_arena_shape_remove_child(NRArenaItem *item, NRArenaItem *child)
 181 {
 182     NRArenaShape *shape = (NRArenaShape *) item;
 183
 184     if (child->prev) {
 185         nr_arena_item_detach(item, child);
 186     } else {
 187         shape->markers = nr_arena_item_detach(item, child);
 188     }
 189
 190     nr_arena_item_request_update(item, NR_ARENA_ITEM_STATE_ALL, FALSE);
 191 }
 192
 193 /**
 194  * Detaches child from item, and if there are no previous items in child, it
 195  * sets item's markers to the child.  It then attaches the child back onto the item.
 196  * If ref is null, it sets the markers to be the next item, otherwise it uses
 197  * the next/prev items in ref.
 198  */
 199 static void
 200 nr_arena_shape_set_child_position(NRArenaItem *item, NRArenaItem *child, NRArenaItem *ref)
 201 {
 202     NRArenaShape *shape = (NRArenaShape *) item;
 203
 204     if (child->prev) {
 205         nr_arena_item_detach(item, child);
 206     } else {
 207         shape->markers = nr_arena_item_detach(item, child);
 208     }
 209
 210     if (!ref) {
 211         shape->markers = nr_arena_item_attach(item, child, NULL, shape->markers);
 212     } else {
 213         ref->next = nr_arena_item_attach(item, child, ref, ref->next);
 214     }
 215
 216     nr_arena_item_request_render(child);
 217 }
 218
 219 void nr_arena_shape_update_stroke(NRArenaShape *shape, NRGC* gc, NRRectL *area);
 220 void nr_arena_shape_update_fill(NRArenaShape *shape, NRGC *gc, NRRectL *area, bool force_shape = false);
 221 void nr_arena_shape_add_bboxes(NRArenaShape* shape,NRRect &bbox);
 222
 223 /**
 224  * Updates the arena shape 'item' and all of its children, including the markers.
 225  */
 226 static guint
 227 nr_arena_shape_update(NRArenaItem *item, NRRectL *area, NRGC *gc, guint state, guint reset)
 228 {
 229     NRRect bbox;
 230
 231     NRArenaShape *shape = NR_ARENA_SHAPE(item);
 232
 233     unsigned int beststate = NR_ARENA_ITEM_STATE_ALL;
 234
 235     unsigned int newstate;
 236     for (NRArenaItem *child = shape->markers; child != NULL; child = child->next) {
 237         newstate = nr_arena_item_invoke_update(child, area, gc, state, reset);
 238         beststate = beststate & newstate;
 239     }
 240
 241     if (!(state & NR_ARENA_ITEM_STATE_RENDER)) {
 242         /* We do not have to create rendering structures */
 243         shape->ctm = gc->transform;
 244         if (state & NR_ARENA_ITEM_STATE_BBOX) {
 245             if (shape->curve) {
 246                 NRBPath bp;
 247                 /* fixme: */
 248                 bbox.x0 = bbox.y0 = NR_HUGE;
 249                 bbox.x1 = bbox.y1 = -NR_HUGE;
 250                 bp.path = SP_CURVE_BPATH(shape->curve);
 251                 nr_path_matrix_bbox_union(&bp, gc->transform, &bbox);
 252                 item->bbox.x0 = (gint32)(bbox.x0 - 1.0F);
 253                 item->bbox.y0 = (gint32)(bbox.y0 - 1.0F);
 254                 item->bbox.x1 = (gint32)(bbox.x1 + 1.9999F);
 255                 item->bbox.y1 = (gint32)(bbox.y1 + 1.9999F);
 256             }
 257             if (beststate & NR_ARENA_ITEM_STATE_BBOX) {
 258                 for (NRArenaItem *child = shape->markers; child != NULL; child = child->next) {
 259                     nr_rect_l_union(&item->bbox, &item->bbox, &child->bbox);
 260                 }
 261             }
 262         }
 263         return (state | item->state);
 264     }
 265
 266     shape->delayed_shp=true;
 267     shape->ctm = gc->transform;
 268     bbox.x0 = bbox.y0 = NR_HUGE;
 269     bbox.x1 = bbox.y1 = -NR_HUGE;
 270
 271     bool outline = (NR_ARENA_ITEM(shape)->arena->rendermode == RENDERMODE_OUTLINE);
 272
 273     if (shape->curve) {
 274         NRBPath bp;
 275         /* fixme: */
 276         bbox.x0 = bbox.y0 = NR_HUGE;
 277         bbox.x1 = bbox.y1 = -NR_HUGE;
 278         bp.path = SP_CURVE_BPATH(shape->curve);
 279         nr_path_matrix_bbox_union(&bp, gc->transform, &bbox);
 280         if (shape->_stroke.paint.type() != NRArenaShape::Paint::NONE || outline) {
 281             float width, scale;
 282             scale = NR_MATRIX_DF_EXPANSION(&gc->transform);
 283             width = MAX(0.125, shape->_stroke.width * scale);
 284             if ( fabs(shape->_stroke.width * scale) > 0.01 ) { // sinon c'est 0=oon veut pas de bord
 285                 bbox.x0-=width;
 286                 bbox.x1+=width;
 287                 bbox.y0-=width;
 288                 bbox.y1+=width;
 289             }
 290             // those pesky miters, now
 291             float miterMax=width*shape->_stroke.mitre_limit;
 292             if ( miterMax > 0.01 ) {
 293                 // grunt mode. we should compute the various miters instead (one for each point on the curve)
 294                 bbox.x0-=miterMax;
 295                 bbox.x1+=miterMax;
 296                 bbox.y0-=miterMax;
 297                 bbox.y1+=miterMax;
 298             }
 299         }
 300     } else {
 301     }
 302     shape->approx_bbox.x0 = (gint32)(bbox.x0 - 1.0F);
 303     shape->approx_bbox.y0 = (gint32)(bbox.y0 - 1.0F);
 304     shape->approx_bbox.x1 = (gint32)(bbox.x1 + 1.9999F);
 305     shape->approx_bbox.y1 = (gint32)(bbox.y1 + 1.9999F);
 306     if ( area && nr_rect_l_test_intersect(area, &shape->approx_bbox) ) shape->delayed_shp=false;
 307
 308     /* Release state data */
 309     if (TRUE || !nr_matrix_test_transform_equal(&gc->transform, &shape->ctm, NR_EPSILON)) {
 310         /* Concept test */
 311         if (shape->fill_shp) {
 312             delete shape->fill_shp;
 313             shape->fill_shp = NULL;
 314         }
 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     }
 328
 329     if (!shape->curve ||
 330         !shape->style ||
 331         sp_curve_is_empty(shape->curve) ||
 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     }
 338
 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);
 345
 346         bbox.x0 = bbox.y0 = bbox.x1 = bbox.y1 = 0.0;
 347         nr_arena_shape_add_bboxes(shape,bbox);
 348
 349         shape->approx_bbox.x0 = (gint32)(bbox.x0 - 1.0F);
 350         shape->approx_bbox.y0 = (gint32)(bbox.y0 - 1.0F);
 351         shape->approx_bbox.x1 = (gint32)(bbox.x1 + 1.9999F);
 352         shape->approx_bbox.y1 = (gint32)(bbox.y1 + 1.9999F);
 353     }
 354
 355     if (nr_rect_d_test_empty(&bbox)) return NR_ARENA_ITEM_STATE_ALL;
 356
 357     item->bbox.x0 = (gint32)(bbox.x0 - 1.0F);
 358     item->bbox.y0 = (gint32)(bbox.y0 - 1.0F);
 359     item->bbox.x1 = (gint32)(bbox.x1 + 1.0F);
 360     item->bbox.y1 = (gint32)(bbox.y1 + 1.0F);
 361     nr_arena_request_render_rect(item->arena, &item->bbox);
 362
 363     item->render_opacity = TRUE;
 364     if ( shape->_fill.paint.type() == NRArenaShape::Paint::SERVER ) {
 365         if (gc && gc->parent) {
 366             shape->fill_painter = sp_paint_server_painter_new(shape->_fill.paint.server(),
 367                                                               NR::Matrix(&gc->transform), NR::Matrix(&gc->parent->transform),
 368                                                               &shape->paintbox);
 369         }
 370         item->render_opacity = FALSE;
 371     }
 372     if ( shape->_stroke.paint.type() == NRArenaShape::Paint::SERVER ) {
 373         if (gc && gc->parent) {
 374             shape->stroke_painter = sp_paint_server_painter_new(shape->_stroke.paint.server(),
 375                                                                 NR::Matrix(&gc->transform), NR::Matrix(&gc->parent->transform),
 376                                                                 &shape->paintbox);
 377         }
 378         item->render_opacity = FALSE;
 379     }
 380     if ( item->render_opacity == TRUE
 381          && shape->_fill.paint.type()   != NRArenaShape::Paint::NONE
 382          && shape->_stroke.paint.type() != NRArenaShape::Paint::NONE )
 383     {
 384         // don't merge item opacity with paint opacity if there is a stroke on the fill
 385         item->render_opacity = FALSE;
 386     }
 387
 388     if (beststate & NR_ARENA_ITEM_STATE_BBOX) {
 389         for (NRArenaItem *child = shape->markers; child != NULL; child = child->next) {
 390             nr_rect_l_union(&item->bbox, &item->bbox, &child->bbox);
 391         }
 392     }
 393
 394     return NR_ARENA_ITEM_STATE_ALL;
 395 }
 396
 397 int matrix_is_isometry(NR::Matrix p) {
 398     NR::Matrix   tp;
 399     // transposition
 400     tp[0]=p[0];
 401     tp[1]=p[2];
 402     tp[2]=p[1];
 403     tp[3]=p[3];
 404     for (int i = 4; i < 6; i++) // shut valgrind up :)
 405         tp[i] = p[i] = 0;
 406     NR::Matrix   isom = tp*p; // A^T * A = adjunct?
 407     // Is the adjunct nearly an identity function?
 408     if (isom.is_translation(0.01)) {
 409         // the transformation is an isometry -> no need to recompute
 410         // the uncrossed polygon
 411         if ( p.det() < 0 )
 412             return -1;
 413         else
 414             return 1;
 415     }
 416     return 0;
 417 }
 418
 419 static bool is_inner_area(NRRectL const &outer, NRRectL const &inner) {
 420     return (outer.x0 <= inner.x0 && outer.y0 <= inner.y0 && outer.x1 >= inner.x1 && outer.y1 >= inner.y1);
 421 }
 422
 423 /** force_shape is used for clipping paths, when we need the shape for clipping even if it's not filled */
 424 void
 425 nr_arena_shape_update_fill(NRArenaShape *shape, NRGC *gc, NRRectL *area, bool force_shape)
 426 {
 427     if ((shape->_fill.paint.type() != NRArenaShape::Paint::NONE || force_shape) &&
 428         ((shape->curve->end > 2) || (SP_CURVE_BPATH(shape->curve)[1].code == NR_CURVETO)) ) {
 429         if (TRUE || !shape->fill_shp) {
 430             NR::Matrix  cached_to_new = NR::identity();
 431             int isometry = 0;
 432             if ( shape->cached_fill ) {
 433                 if (shape->cached_fctm == gc->transform) {
 434                     isometry = 2; // identity
 435                 } else {
 436                     cached_to_new = shape->cached_fctm.inverse() * gc->transform;
 437                     isometry = matrix_is_isometry(cached_to_new);
 438                 }
 439                 if (0 != isometry && !is_inner_area(shape->cached_farea, *area))
 440                     isometry = 0;
 441             }
 442             if ( isometry == 0 ) {
 443                 if ( shape->cached_fill == NULL ) shape->cached_fill=new Shape;
 444                 shape->cached_fill->Reset();
 445
 446                 Path*  thePath=new Path;
 447                 Shape* theShape=new Shape;
 448                 {
 449                     NR::Matrix   tempMat(gc->transform);
 450                     thePath->LoadArtBPath(SP_CURVE_BPATH(shape->curve),tempMat,true);
 451                 }
 452
 453                 if (is_inner_area(*area, NR_ARENA_ITEM(shape)->bbox)) {
 454                     thePath->Convert(1.0);
 455                     shape->cached_fpartialy = false;
 456                 } else {
 457                     thePath->Convert(area, 1.0);
 458                     shape->cached_fpartialy = true;
 459                 }
 460
 461                 thePath->Fill(theShape, 0);
 462
 463                 if ( shape->_fill.rule == NRArenaShape::EVEN_ODD ) {
 464                     shape->cached_fill->ConvertToShape(theShape, fill_oddEven);
 465                     // alternatively, this speeds up rendering of oddeven shapes but disables AA :(
 466                     //shape->cached_fill->Copy(theShape);
 467                 } else {
 468                     shape->cached_fill->ConvertToShape(theShape, fill_nonZero);
 469                 }
 470                 shape->cached_fctm=gc->transform;
 471                 shape->cached_farea = *area;
 472                 delete theShape;
 473                 delete thePath;
 474                 if ( shape->fill_shp == NULL )
 475                     shape->fill_shp = new Shape;
 476
 477                 shape->fill_shp->Copy(shape->cached_fill);
 478
 479             } else if ( 2 == isometry ) {
 480                 if ( shape->fill_shp == NULL ) {
 481                     shape->fill_shp = new Shape;
 482                     shape->fill_shp->Copy(shape->cached_fill);
 483                 }
 484             } else {
 485
 486                 if ( shape->fill_shp == NULL )
 487                     shape->fill_shp = new Shape;
 488
 489                 shape->fill_shp->Reset(shape->cached_fill->numberOfPoints(),
 490                                        shape->cached_fill->numberOfEdges());
 491                 for (int i = 0; i < shape->cached_fill->numberOfPoints(); i++)
 492                     shape->fill_shp->AddPoint(shape->cached_fill->getPoint(i).x * cached_to_new);
 493                 if ( isometry == 1 ) {
 494                     for (int i = 0; i < shape->cached_fill->numberOfEdges(); i++)
 495                         shape->fill_shp->AddEdge(shape->cached_fill->getEdge(i).st,
 496                                                  shape->cached_fill->getEdge(i).en);
 497                 } else if ( isometry == -1 ) { // need to flip poly.
 498                     for (int i = 0; i < shape->cached_fill->numberOfEdges(); i++)
 499                         shape->fill_shp->AddEdge(shape->cached_fill->getEdge(i).en,
 500                                                  shape->cached_fill->getEdge(i).st);
 501                 }
 502                 shape->fill_shp->ForceToPolygon();
 503                 shape->fill_shp->needPointsSorting();
 504                 shape->fill_shp->needEdgesSorting();
 505             }
 506             shape->delayed_shp |= shape->cached_fpartialy;
 507         }
 508     }
 509 }
 510
 511 void
 512 nr_arena_shape_update_stroke(NRArenaShape *shape,NRGC* gc, NRRectL *area)
 513 {
 514     SPStyle* style = shape->style;
 515
 516     float const scale = NR_MATRIX_DF_EXPANSION(&gc->transform);
 517
 518     bool outline = (NR_ARENA_ITEM(shape)->arena->rendermode == RENDERMODE_OUTLINE);
 519
 520     if (outline ||
 521         ((shape->_stroke.paint.type() != NRArenaShape::Paint::NONE) &&
 522          ( fabs(shape->_stroke.width * scale) > 0.01 ))) { // sinon c'est 0=oon veut pas de bord
 523
 524         float style_width = MAX(0.125, shape->_stroke.width * scale);
 525         float width;
 526         if (outline) {
 527             width = 0.5; // 1 pixel wide, independent of zoom
 528         } else {
 529             width = style_width;
 530         }
 531
 532         NR::Matrix  cached_to_new = NR::identity();
 533
 534         int isometry = 0;
 535         if ( shape->cached_stroke ) {
 536             if (shape->cached_sctm == gc->transform) {
 537                 isometry = 2; // identity
 538             } else {
 539                 cached_to_new = shape->cached_sctm.inverse() * gc->transform;
 540                 isometry = matrix_is_isometry(cached_to_new);
 541             }
 542             if (0 != isometry && !is_inner_area(shape->cached_sarea, *area))
 543                 isometry = 0;
 544             if (0 != isometry && width != shape->cached_width) {
 545                 // if this happens without setting style, we have just switched to outline or back
 546                 isometry = 0;
 547             }
 548         }
 549
 550         if ( isometry == 0 ) {
 551             if ( shape->cached_stroke == NULL ) shape->cached_stroke=new Shape;
 552             shape->cached_stroke->Reset();
 553             Path*  thePath = new Path;
 554             Shape* theShape = new Shape;
 555             {
 556                 NR::Matrix   tempMat(gc->transform);
 557                 thePath->LoadArtBPath(SP_CURVE_BPATH(shape->curve), tempMat, true);
 558             }
 559
 560             // add some padding to the rendering area, so clipped path does not go into a render area
 561             NRRectL padded_area = *area;
 562             padded_area.x0 -= (NR::ICoord)width;
 563             padded_area.x1 += (NR::ICoord)width;
 564             padded_area.y0 -= (NR::ICoord)width;
 565             padded_area.y1 += (NR::ICoord)width;
 566             if ((style->stroke_dash.n_dash && !outline) || is_inner_area(padded_area, NR_ARENA_ITEM(shape)->bbox)) {
 567                 thePath->Convert((outline) ? 4.0 : 1.0);
 568                 shape->cached_spartialy = false;
 569             }
 570             else {
 571                 thePath->Convert(&padded_area, (outline) ? 4.0 : 1.0);
 572                 shape->cached_spartialy = true;
 573             }
 574
 575             if (style->stroke_dash.n_dash && !outline) {
 576                 thePath->DashPolylineFromStyle(style, scale, 1.0);
 577             }
 578
 579             ButtType butt=butt_straight;
 580             switch (shape->_stroke.cap) {
 581                 case NRArenaShape::BUTT_CAP:
 582                     butt = butt_straight;
 583                     break;
 584                 case NRArenaShape::ROUND_CAP:
 585                     butt = butt_round;
 586                     break;
 587                 case NRArenaShape::SQUARE_CAP:
 588                     butt = butt_square;
 589                     break;
 590             }
 591             JoinType join=join_straight;
 592             switch (shape->_stroke.join) {
 593                 case NRArenaShape::MITRE_JOIN:
 594                     join = join_pointy;
 595                     break;
 596                 case NRArenaShape::ROUND_JOIN:
 597                     join = join_round;
 598                     break;
 599                 case NRArenaShape::BEVEL_JOIN:
 600                     join = join_straight;
 601                     break;
 602             }
 603
 604             if (outline) {
 605                 butt = butt_straight;
 606                 join = join_straight;
 607             }
 608
 609             thePath->Stroke(theShape, false, 0.5*width, join, butt,
 610                             0.5*width*shape->_stroke.mitre_limit);
 611
 612
 613             if (outline) {
 614                 // speeds it up, but uses evenodd for the stroke shape (which does not matter for 1-pixel wide outline)
 615                 shape->cached_stroke->Copy(theShape);
 616             } else {
 617                 shape->cached_stroke->ConvertToShape(theShape, fill_nonZero);
 618             }
 619
 620             shape->cached_width = width;
 621
 622             shape->cached_sctm=gc->transform;
 623             shape->cached_sarea = *area;
 624             delete thePath;
 625             delete theShape;
 626             if ( shape->stroke_shp == NULL ) shape->stroke_shp=new Shape;
 627
 628             shape->stroke_shp->Copy(shape->cached_stroke);
 629
 630         } else if ( 2 == isometry ) {
 631             if ( shape->stroke_shp == NULL ) {
 632                 shape->stroke_shp=new Shape;
 633                 shape->stroke_shp->Copy(shape->cached_stroke);
 634             }
 635         } else {
 636             if ( shape->stroke_shp == NULL )
 637                 shape->stroke_shp=new Shape;
 638             shape->stroke_shp->Reset(shape->cached_stroke->numberOfPoints(), shape->cached_stroke->numberOfEdges());
 639             for (int i = 0; i < shape->cached_stroke->numberOfPoints(); i++)
 640                 shape->stroke_shp->AddPoint(shape->cached_stroke->getPoint(i).x * cached_to_new);
 641             if ( isometry == 1 ) {
 642                 for (int i = 0; i < shape->cached_stroke->numberOfEdges(); i++)
 643                     shape->stroke_shp->AddEdge(shape->cached_stroke->getEdge(i).st,
 644                                                shape->cached_stroke->getEdge(i).en);
 645             } else if ( isometry == -1 ) {
 646                 for (int i = 0; i < shape->cached_stroke->numberOfEdges(); i++)
 647                     shape->stroke_shp->AddEdge(shape->cached_stroke->getEdge(i).en,
 648                                                shape->cached_stroke->getEdge(i).st);
 649             }
 650             shape->stroke_shp->ForceToPolygon();
 651             shape->stroke_shp->needPointsSorting();
 652             shape->stroke_shp->needEdgesSorting();
 653         }
 654         shape->delayed_shp |= shape->cached_spartialy;
 655     }
 656 }
 657
 658
 659 void
 660 nr_arena_shape_add_bboxes(NRArenaShape* shape, NRRect &bbox)
 661 {
 662     if ( shape->stroke_shp ) {
 663         shape->stroke_shp->CalcBBox();
 664         shape->stroke_shp->leftX=floor(shape->stroke_shp->leftX);
 665         shape->stroke_shp->rightX=ceil(shape->stroke_shp->rightX);
 666         shape->stroke_shp->topY=floor(shape->stroke_shp->topY);
 667         shape->stroke_shp->bottomY=ceil(shape->stroke_shp->bottomY);
 668         if ( bbox.x0 >= bbox.x1 ) {
 669             if ( shape->stroke_shp->leftX < shape->stroke_shp->rightX ) {
 670                 bbox.x0=shape->stroke_shp->leftX;
 671                 bbox.x1=shape->stroke_shp->rightX;
 672             }
 673         } else {
 674             if ( shape->stroke_shp->leftX < bbox.x0 )
 675                 bbox.x0=shape->stroke_shp->leftX;
 676             if ( shape->stroke_shp->rightX > bbox.x1 )
 677                 bbox.x1=shape->stroke_shp->rightX;
 678         }
 679         if ( bbox.y0 >= bbox.y1 ) {
 680             if ( shape->stroke_shp->topY < shape->stroke_shp->bottomY ) {
 681                 bbox.y0=shape->stroke_shp->topY;
 682                 bbox.y1=shape->stroke_shp->bottomY;
 683             }
 684         } else {
 685             if ( shape->stroke_shp->topY < bbox.y0 )
 686                 bbox.y0=shape->stroke_shp->topY;
 687             if ( shape->stroke_shp->bottomY > bbox.y1 )
 688                 bbox.y1=shape->stroke_shp->bottomY;
 689         }
 690     }
 691     if ( shape->fill_shp ) {
 692         shape->fill_shp->CalcBBox();
 693         shape->fill_shp->leftX=floor(shape->fill_shp->leftX);
 694         shape->fill_shp->rightX=ceil(shape->fill_shp->rightX);
 695         shape->fill_shp->topY=floor(shape->fill_shp->topY);
 696         shape->fill_shp->bottomY=ceil(shape->fill_shp->bottomY);
 697         if ( bbox.x0 >= bbox.x1 ) {
 698             if ( shape->fill_shp->leftX < shape->fill_shp->rightX ) {
 699                 bbox.x0=shape->fill_shp->leftX;
 700                 bbox.x1=shape->fill_shp->rightX;
 701             }
 702         } else {
 703             if ( shape->fill_shp->leftX < bbox.x0 ) bbox.x0=shape->fill_shp->leftX;
 704             if ( shape->fill_shp->rightX > bbox.x1 ) bbox.x1=shape->fill_shp->rightX;
 705         }
 706         if ( bbox.y0 >= bbox.y1 ) {
 707             if ( shape->fill_shp->topY < shape->fill_shp->bottomY ) {
 708                 bbox.y0=shape->fill_shp->topY;
 709                 bbox.y1=shape->fill_shp->bottomY;
 710             }
 711         } else {
 712             if ( shape->fill_shp->topY < bbox.y0 ) bbox.y0=shape->fill_shp->topY;
 713             if ( shape->fill_shp->bottomY > bbox.y1 ) bbox.y1=shape->fill_shp->bottomY;
 714         }
 715     }
 716 }
 717
 718 /**
 719  * Renders the item.  Markers are just composed into the parent buffer.
 720  */
 721 static unsigned int
 722 nr_arena_shape_render(NRArenaItem *item, NRRectL *area, NRPixBlock *pb, unsigned int flags)
 723 {
 724     NRArenaShape *shape = NR_ARENA_SHAPE(item);
 725
 726     if (!shape->curve) return item->state;
 727     if (!shape->style) return item->state;
 728
 729     if ( shape->delayed_shp ) {
 730         if ( nr_rect_l_test_intersect(area, &item->bbox) ) {
 731             NRGC   tempGC(NULL);
 732             tempGC.transform=shape->ctm;
 733             shape->delayed_shp = false;
 734             nr_arena_shape_update_stroke(shape,&tempGC,&pb->visible_area);
 735             nr_arena_shape_update_fill(shape,&tempGC,&pb->visible_area);
 736 /*      NRRect bbox;
 737         bbox.x0 = bbox.y0 = bbox.x1 = bbox.y1 = 0.0;
 738         nr_arena_shape_add_bboxes(shape,bbox);
 739         item->bbox.x0 = (gint32)(bbox.x0 - 1.0F);
 740         item->bbox.y0 = (gint32)(bbox.y0 - 1.0F);
 741         item->bbox.x1 = (gint32)(bbox.x1 + 1.0F);
 742         item->bbox.y1 = (gint32)(bbox.y1 + 1.0F);
 743         shape->approx_bbox=item->bbox;*/
 744         } else {
 745             return item->state;
 746         }
 747     }
 748
 749     bool outline = (NR_ARENA_ITEM(shape)->arena->rendermode == RENDERMODE_OUTLINE);
 750
 751     SPStyle const *style = shape->style;
 752     if ( shape->fill_shp && !outline) {
 753         NRPixBlock m;
 754         guint32 rgba;
 755
 756         nr_pixblock_setup_fast(&m, NR_PIXBLOCK_MODE_A8, area->x0, area->y0, area->x1, area->y1, TRUE);
 757
 758         // if memory allocation failed, abort render
 759         if (m.data.px == NULL) {
 760             nr_pixblock_release (&m);
 761             return (item->state);
 762         }
 763
 764         m.visible_area = pb->visible_area;
 765         nr_pixblock_render_shape_mask_or(m,shape->fill_shp);
 766         m.empty = FALSE;
 767
 768         if (shape->_fill.paint.type() == NRArenaShape::Paint::NONE) {
 769             // do not render fill in any way
 770         } else if (shape->_fill.paint.type() == NRArenaShape::Paint::COLOR) {
 771             if ( item->render_opacity ) {
 772                 rgba = sp_color_get_rgba32_falpha(&shape->_fill.paint.color(),
 773                                                   shape->_fill.opacity *
 774                                                   SP_SCALE24_TO_FLOAT(style->opacity.value));
 775             } else {
 776                 rgba = sp_color_get_rgba32_falpha(&shape->_fill.paint.color(),
 777                                                   shape->_fill.opacity);
 778             }
 779             nr_blit_pixblock_mask_rgba32(pb, &m, rgba);
 780             pb->empty = FALSE;
 781         } else if (shape->_fill.paint.type() == NRArenaShape::Paint::SERVER) {
 782             if (shape->fill_painter) {
 783                 nr_arena_render_paintserver_fill(pb, area, shape->fill_painter, shape->_fill.opacity, &m);
 784             }
 785         }
 786
 787         nr_pixblock_release(&m);
 788     }
 789
 790     if ( shape->stroke_shp ) {
 791         NRPixBlock m;
 792         guint32 rgba;
 793
 794         nr_pixblock_setup_fast(&m, NR_PIXBLOCK_MODE_A8, area->x0, area->y0, area->x1, area->y1, TRUE);
 795
 796         // if memory allocation failed, abort render
 797         if (m.data.px == NULL) {
 798             nr_pixblock_release (&m);
 799             return (item->state);
 800         }
 801
 802         m.visible_area = pb->visible_area;
 803         nr_pixblock_render_shape_mask_or(m, shape->stroke_shp);
 804         m.empty = FALSE;
 805
 806         if (shape->_stroke.paint.type() == NRArenaShape::Paint::COLOR || outline) {
 807             if (outline) {
 808                 rgba = NR_ARENA_ITEM(shape)->arena->outlinecolor;
 809             } else if ( item->render_opacity ) {
 810                 rgba = sp_color_get_rgba32_falpha(&shape->_stroke.paint.color(),
 811                                                   shape->_stroke.opacity *
 812                                                   SP_SCALE24_TO_FLOAT(style->opacity.value));
 813             } else {
 814                 rgba = sp_color_get_rgba32_falpha(&shape->_stroke.paint.color(),
 815                                                   shape->_stroke.opacity);
 816             }
 817             nr_blit_pixblock_mask_rgba32(pb, &m, rgba);
 818             pb->empty = FALSE;
 819         } else if (shape->_stroke.paint.type() == NRArenaShape::Paint::SERVER) {
 820             if (shape->stroke_painter) {
 821                 nr_arena_render_paintserver_fill(pb, area, shape->stroke_painter, shape->_stroke.opacity, &m);
 822             }
 823         }
 824
 825         nr_pixblock_release(&m);
 826     }
 827
 828     /* Just compose children into parent buffer */
 829     for (NRArenaItem *child = shape->markers; child != NULL; child = child->next) {
 830         unsigned int ret;
 831         ret = nr_arena_item_invoke_render(child, area, pb, flags);
 832         if (ret & NR_ARENA_ITEM_STATE_INVALID) return ret;
 833     }
 834
 835     return item->state;
 836 }
 837
 838 static guint
 839 nr_arena_shape_clip(NRArenaItem *item, NRRectL *area, NRPixBlock *pb)
 840 {
 841     NRArenaShape *shape = NR_ARENA_SHAPE(item);
 842     if (!shape->curve) return item->state;
 843
 844     if ( shape->delayed_shp || shape->fill_shp == NULL) { // we need a fill shape no matter what
 845         if ( nr_rect_l_test_intersect(area, &item->bbox) ) {
 846             NRGC   tempGC(NULL);
 847             tempGC.transform=shape->ctm;
 848             shape->delayed_shp = false;
 849             nr_arena_shape_update_fill(shape, &tempGC, &pb->visible_area, true);
 850         } else {
 851             return item->state;
 852         }
 853     }
 854
 855     if ( shape->fill_shp ) {
 856         NRPixBlock m;
 857
 858         /* fixme: We can OR in one step (Lauris) */
 859         nr_pixblock_setup_fast(&m, NR_PIXBLOCK_MODE_A8, area->x0, area->y0, area->x1, area->y1, TRUE);
 860
 861         // if memory allocation failed, abort
 862         if (m.data.px == NULL) {
 863             nr_pixblock_release (&m);
 864             return (item->state);
 865         }
 866
 867         m.visible_area = pb->visible_area;
 868         nr_pixblock_render_shape_mask_or(m,shape->fill_shp);
 869
 870         for (int y = area->y0; y < area->y1; y++) {
 871             unsigned char *s, *d;
 872             s = NR_PIXBLOCK_PX(&m) + (y - area->y0) * m.rs;
 873             d = NR_PIXBLOCK_PX(pb) + (y - area->y0) * pb->rs;
 874             for (int x = area->x0; x < area->x1; x++) {
 875                 *d = NR_COMPOSEA_111(*s, *d);
 876                 d ++;
 877                 s ++;
 878             }
 879         }
 880         nr_pixblock_release(&m);
 881         pb->empty = FALSE;
 882     }
 883
 884     return item->state;
 885 }
 886
 887 static NRArenaItem *
 888 nr_arena_shape_pick(NRArenaItem *item, NR::Point p, double delta, unsigned int /*sticky*/)
 889 {
 890     NRArenaShape *shape = NR_ARENA_SHAPE(item);
 891
 892     if (!shape->curve) return NULL;
 893     if (!shape->style) return NULL;
 894     if ( shape->delayed_shp ) {
 895         NRRectL  area, updateArea;
 896         area.x0=(int)floor(p[NR::X]);
 897         area.x1=(int)ceil(p[NR::X]);
 898         area.y0=(int)floor(p[NR::Y]);
 899         area.y1=(int)ceil(p[NR::Y]);
 900         int idelta = (int)ceil(delta) + 1;
 901         // njh: inset rect
 902         area.x0-=idelta;
 903         area.x1+=idelta;
 904         area.y0-=idelta;
 905         area.y1+=idelta;
 906         if ( nr_rect_l_test_intersect(&area, &item->bbox) ) {
 907             NRGC   tempGC(NULL);
 908             tempGC.transform=shape->ctm;
 909             updateArea = item->bbox;
 910             if (shape->cached_stroke)
 911                 nr_rect_l_intersect (&updateArea, &updateArea, &shape->cached_sarea);
 912
 913             shape->delayed_shp = false;
 914             nr_arena_shape_update_stroke(shape, &tempGC, &updateArea);
 915             nr_arena_shape_update_fill(shape, &tempGC, &updateArea);
 916             /*      NRRect bbox;
 917                     bbox.x0 = bbox.y0 = bbox.x1 = bbox.y1 = 0.0;
 918                     nr_arena_shape_add_bboxes(shape,bbox);
 919                     item->bbox.x0 = (gint32)(bbox.x0 - 1.0F);
 920                     item->bbox.y0 = (gint32)(bbox.y0 - 1.0F);
 921                     item->bbox.x1 = (gint32)(bbox.x1 + 1.0F);
 922                     item->bbox.y1 = (gint32)(bbox.y1 + 1.0F);
 923                     shape->approx_bbox=item->bbox;*/
 924         }
 925     }
 926
 927     bool outline = (NR_ARENA_ITEM(shape)->arena->rendermode == RENDERMODE_OUTLINE);
 928
 929     if (item->state & NR_ARENA_ITEM_STATE_RENDER) {
 930         if (shape->fill_shp && (shape->_fill.paint.type() != NRArenaShape::Paint::NONE)) {
 931             if (shape->fill_shp->PtWinding(p) > 0 ) return item;
 932         }
 933         if (shape->stroke_shp && (shape->_stroke.paint.type() != NRArenaShape::Paint::NONE || outline)) {
 934             if (shape->stroke_shp->PtWinding(p) > 0 ) return item;
 935         }
 936         if (delta > 1e-3) {
 937             if (shape->fill_shp && (shape->_fill.paint.type() != NRArenaShape::Paint::NONE)) {
 938                 if (distanceLessThanOrEqual(shape->fill_shp, p, delta)) return item;
 939             }
 940             if (shape->stroke_shp && (shape->_stroke.paint.type() != NRArenaShape::Paint::NONE || outline)) {
 941                 if (distanceLessThanOrEqual(shape->stroke_shp, p, delta)) return item;
 942             }
 943         }
 944     } else {
 945         NRBPath bp;
 946         bp.path = SP_CURVE_BPATH(shape->curve);
 947         double dist = NR_HUGE;
 948         int wind = 0;
 949         nr_path_matrix_point_bbox_wind_distance(&bp, shape->ctm, p, NULL, &wind, &dist, NR_EPSILON);
 950         if (shape->_fill.paint.type() != NRArenaShape::Paint::NONE) {
 951             if (!shape->style->fill_rule.computed) {
 952                 if (wind != 0) return item;
 953             } else {
 954                 if (wind & 0x1) return item;
 955             }
 956         }
 957         if (shape->_stroke.paint.type() != NRArenaShape::Paint::NONE || outline) {
 958             /* fixme: We do not take stroke width into account here (Lauris) */
 959             if (dist < delta) return item;
 960         }
 961     }
 962
 963     return NULL;
 964 }
 965
 966 /**
 967  *
 968  *  Requests a render of the shape, then if the shape is already a curve it
 969  *  unrefs the old curve; if the new curve is valid it creates a copy of the
 970  *  curve and adds it to the shape.  Finally, it requests an update of the
 971  *  arena for the shape.
 972  */
 973 void nr_arena_shape_set_path(NRArenaShape *shape, SPCurve *curve,bool justTrans)
 974 {
 975     g_return_if_fail(shape != NULL);
 976     g_return_if_fail(NR_IS_ARENA_SHAPE(shape));
 977
 978     if ( justTrans == false ) {
 979         // dirty cached versions
 980         if ( shape->cached_fill ) {
 981             delete shape->cached_fill;
 982             shape->cached_fill=NULL;
 983         }
 984         if ( shape->cached_stroke ) {
 985             delete shape->cached_stroke;
 986             shape->cached_stroke=NULL;
 987         }
 988     }
 989
 990     nr_arena_item_request_render(NR_ARENA_ITEM(shape));
 991
 992     if (shape->curve) {
 993         sp_curve_unref(shape->curve);
 994         shape->curve = NULL;
 995     }
 996
 997     if (curve) {
 998         shape->curve = curve;
 999         sp_curve_ref(curve);
1000     }
1001
1002     nr_arena_item_request_update(NR_ARENA_ITEM(shape), NR_ARENA_ITEM_STATE_ALL, FALSE);
1003 }
1004
1005 void NRArenaShape::setFill(SPPaintServer *server) {
1006     _fill.paint.set(server);
1007     _invalidateCachedFill();
1008 }
1009
1010 void NRArenaShape::setFill(SPColor const &color) {
1011     _fill.paint.set(color);
1012     _invalidateCachedFill();
1013 }
1014
1015 void NRArenaShape::setFillOpacity(double opacity) {
1016     _fill.opacity = opacity;
1017     _invalidateCachedFill();
1018 }
1019
1020 void NRArenaShape::setFillRule(NRArenaShape::FillRule rule) {
1021     _fill.rule = rule;
1022     _invalidateCachedFill();
1023 }
1024
1025 void NRArenaShape::setStroke(SPPaintServer *server) {
1026     _stroke.paint.set(server);
1027     _invalidateCachedStroke();
1028 }
1029
1030 void NRArenaShape::setStroke(SPColor const &color) {
1031     _stroke.paint.set(color);
1032     _invalidateCachedStroke();
1033 }
1034
1035 void NRArenaShape::setStrokeOpacity(double opacity) {
1036     _stroke.opacity = opacity;
1037     _invalidateCachedStroke();
1038 }
1039
1040 void NRArenaShape::setStrokeWidth(double width) {
1041     _stroke.width = width;
1042     _invalidateCachedStroke();
1043 }
1044
1045 void NRArenaShape::setMitreLimit(double limit) {
1046     _stroke.mitre_limit = limit;
1047     _invalidateCachedStroke();
1048 }
1049
1050 void NRArenaShape::setLineCap(NRArenaShape::CapType cap) {
1051     _stroke.cap = cap;
1052     _invalidateCachedStroke();
1053 }
1054
1055 void NRArenaShape::setLineJoin(NRArenaShape::JoinType join) {
1056     _stroke.join = join;
1057     _invalidateCachedStroke();
1058 }
1059
1060 /** nr_arena_shape_set_style
1061  *
1062  * Unrefs any existing style and ref's to the given one, then requests an update of the arena
1063  */
1064 void
1065 nr_arena_shape_set_style(NRArenaShape *shape, SPStyle *style)
1066 {
1067     g_return_if_fail(shape != NULL);
1068     g_return_if_fail(NR_IS_ARENA_SHAPE(shape));
1069
1070     if (style) sp_style_ref(style);
1071     if (shape->style) sp_style_unref(shape->style);
1072     shape->style = style;
1073
1074     switch (style->fill.type) {
1075         case SP_PAINT_TYPE_NONE: {
1076             shape->setFill(NULL);
1077             break;
1078         }
1079         case SP_PAINT_TYPE_COLOR: {
1080             shape->setFill(style->fill.value.color);
1081             break;
1082         }
1083         case SP_PAINT_TYPE_PAINTSERVER: {
1084             shape->setFill(style->fill.value.paint.server);
1085             break;
1086         }
1087         default: {
1088             g_assert_not_reached();
1089         }
1090     }
1091     shape->setFillOpacity(SP_SCALE24_TO_FLOAT(style->fill_opacity.value));
1092     switch (style->fill_rule.computed) {
1093         case SP_WIND_RULE_EVENODD: {
1094             shape->setFillRule(NRArenaShape::EVEN_ODD);
1095             break;
1096         }
1097         case SP_WIND_RULE_NONZERO: {
1098             shape->setFillRule(NRArenaShape::NONZERO);
1099             break;
1100         }
1101         default: {
1102             g_assert_not_reached();
1103         }
1104     }
1105
1106     switch (style->stroke.type) {
1107         case SP_PAINT_TYPE_NONE: {
1108             shape->setStroke(NULL);
1109             break;
1110         }
1111         case SP_PAINT_TYPE_COLOR: {
1112             shape->setStroke(style->stroke.value.color);
1113             break;
1114         }
1115         case SP_PAINT_TYPE_PAINTSERVER: {
1116             shape->setStroke(style->stroke.value.paint.server);
1117             break;
1118         }
1119         default: {
1120             g_assert_not_reached();
1121         }
1122     }
1123     shape->setStrokeWidth(style->stroke_width.computed);
1124     shape->setStrokeOpacity(SP_SCALE24_TO_FLOAT(style->stroke_opacity.value));
1125     switch (style->stroke_linecap.computed) {
1126         case SP_STROKE_LINECAP_ROUND: {
1127             shape->setLineCap(NRArenaShape::ROUND_CAP);
1128             break;
1129         }
1130         case SP_STROKE_LINECAP_SQUARE: {
1131             shape->setLineCap(NRArenaShape::SQUARE_CAP);
1132             break;
1133         }
1134         case SP_STROKE_LINECAP_BUTT: {
1135             shape->setLineCap(NRArenaShape::BUTT_CAP);
1136             break;
1137         }
1138         default: {
1139             g_assert_not_reached();
1140         }
1141     }
1142     switch (style->stroke_linejoin.computed) {
1143         case SP_STROKE_LINEJOIN_ROUND: {
1144             shape->setLineJoin(NRArenaShape::ROUND_JOIN);
1145             break;
1146         }
1147         case SP_STROKE_LINEJOIN_BEVEL: {
1148             shape->setLineJoin(NRArenaShape::BEVEL_JOIN);
1149             break;
1150         }
1151         case SP_STROKE_LINEJOIN_MITER: {
1152             shape->setLineJoin(NRArenaShape::MITRE_JOIN);
1153             break;
1154         }
1155         default: {
1156             g_assert_not_reached();
1157         }
1158     }
1159     shape->setMitreLimit(style->stroke_miterlimit.value);
1160
1161     //if shape has a filter
1162     if (style->filter.set && style->filter.filter)
1163     {
1164         shape->filter = new NR::Filter();
1165         shape->filter->set_x(style->filter.filter->x);
1166         shape->filter->set_y(style->filter.filter->y);
1167         shape->filter->set_width(style->filter.filter->width);
1168         shape->filter->set_height(style->filter.filter->height);
1169
1170         //go through all SP filter primitives
1171         for(int i=0; i<style->filter.filter->_primitive_count; i++)
1172         {
1173             SPFilterPrimitive *primitive = style->filter.filter->_primitives[i];
1174             //if primitive is gaussianblur
1175 //            if(SP_IS_GAUSSIANBLUR(primitive))
1176             {
1177                 NR::FilterGaussian * gaussian = (NR::FilterGaussian *) shape->filter->add_primitive(NR::NR_FILTER_GAUSSIANBLUR);
1178                 SPGaussianBlur * spblur = SP_GAUSSIANBLUR(primitive);
1179                 float num = spblur->stdDeviation.getNumber();
1180                 if( num>=0.0 )
1181                 {
1182                     float optnum = spblur->stdDeviation.getOptNumber();
1183                     if( optnum>=0.0 )
1184                         gaussian->set_deviation((double) num, (double) optnum);
1185                     else
1186                         gaussian->set_deviation((double) num);
1187                 }
1188             }
1189         }
1190     }
1191     else
1192     {
1193         //no filter set for this shape
1194         shape->filter = NULL;
1195     }
1196
1197     nr_arena_item_request_update(shape, NR_ARENA_ITEM_STATE_ALL, FALSE);
1198 }
1199
1200 void
1201 nr_arena_shape_set_paintbox(NRArenaShape *shape, NRRect const *pbox)
1202 {
1203     g_return_if_fail(shape != NULL);
1204     g_return_if_fail(NR_IS_ARENA_SHAPE(shape));
1205     g_return_if_fail(pbox != NULL);
1206
1207     if ((pbox->x0 < pbox->x1) && (pbox->y0 < pbox->y1)) {
1208         shape->paintbox = *pbox;
1209     } else {
1210         /* fixme: We kill warning, although not sure what to do here (Lauris) */
1211         shape->paintbox.x0 = shape->paintbox.y0 = 0.0F;
1212         shape->paintbox.x1 = shape->paintbox.y1 = 256.0F;
1213     }
1214
1215     nr_arena_item_request_update(shape, NR_ARENA_ITEM_STATE_ALL, FALSE);
1216 }
1217
1218 void NRArenaShape::setPaintBox(NR::Rect const &pbox)
1219 {
1220     paintbox.x0 = pbox.min()[NR::X];
1221     paintbox.y0 = pbox.min()[NR::Y];
1222     paintbox.x1 = pbox.max()[NR::X];
1223     paintbox.y1 = pbox.max()[NR::Y];
1224
1225     nr_arena_item_request_update(this, NR_ARENA_ITEM_STATE_ALL, FALSE);
1226 }
1227
1228 static void
1229 shape_run_A8_OR(raster_info &dest,void */*data*/,int st,float vst,int en,float ven)
1230 {
1231     if ( st >= en ) return;
1232     if ( vst < 0 ) vst=0;
1233     if ( vst > 1 ) vst=1;
1234     if ( ven < 0 ) ven=0;
1235     if ( ven > 1 ) ven=1;
1236     float   sv=vst;
1237     float   dv=ven-vst;
1238     int     len=en-st;
1239     unsigned char*   d=(unsigned char*)dest.buffer;
1240     d+=(st-dest.startPix);
1241     if ( fabs(dv) < 0.001 ) {
1242         if ( vst > 0.999 ) {
1243             /* Simple copy */
1244             while (len > 0) {
1245                 d[0] = 255;
1246                 d += 1;
1247                 len -= 1;
1248             }
1249         } else {
1250             sv*=256;
1251             unsigned int c0_24=(int)sv;
1252             c0_24&=0xFF;
1253             while (len > 0) {
1254                 /* Draw */
1255                 d[0] = NR_COMPOSEA_111(c0_24,d[0]);
1256                 d += 1;
1257                 len -= 1;
1258             }
1259         }
1260     } else {
1261         if ( en <= st+1 ) {
1262             sv=0.5*(vst+ven);
1263             sv*=256;
1264             unsigned int c0_24=(int)sv;
1265             c0_24&=0xFF;
1266             /* Draw */
1267             d[0] = NR_COMPOSEA_111(c0_24,d[0]);
1268         } else {
1269             dv/=len;
1270             sv+=0.5*dv; // correction trapezoidale
1271             sv*=16777216;
1272             dv*=16777216;
1273             int c0_24 = static_cast<int>(CLAMP(sv, 0, 16777216));
1274             int s0_24 = static_cast<int>(dv);
1275             while (len > 0) {
1276                 unsigned int ca;
1277                 /* Draw */
1278                 ca = c0_24 >> 16;
1279                 if ( ca > 255 ) ca=255;
1280                 d[0] = NR_COMPOSEA_111(ca,d[0]);
1281                 d += 1;
1282                 c0_24 += s0_24;
1283                 c0_24 = CLAMP(c0_24, 0, 16777216);
1284                 len -= 1;
1285             }
1286         }
1287     }
1288 }
1289
1290 void nr_pixblock_render_shape_mask_or(NRPixBlock &m,Shape* theS)
1291 {
1292     theS->CalcBBox();
1293     float l = theS->leftX, r = theS->rightX, t = theS->topY, b = theS->bottomY;
1294     int    il,ir,it,ib;
1295     il=(int)floor(l);
1296     ir=(int)ceil(r);
1297     it=(int)floor(t);
1298     ib=(int)ceil(b);
1299
1300     if ( il >= m.area.x1 || ir <= m.area.x0 || it >= m.area.y1 || ib <= m.area.y0 ) return;
1301     if ( il < m.area.x0 ) il=m.area.x0;
1302     if ( it < m.area.y0 ) it=m.area.y0;
1303     if ( ir > m.area.x1 ) ir=m.area.x1;
1304     if ( ib > m.area.y1 ) ib=m.area.y1;
1305
1306     /* This is the FloatLigne version.  See svn (prior to Apr 2006) for versions using BitLigne or direct BitLigne. */
1307     int    curPt;
1308     float  curY;
1309     theS->BeginQuickRaster(curY, curPt);
1310
1311     FloatLigne *theI = new FloatLigne();
1312     IntLigne *theIL = new IntLigne();
1313
1314     theS->DirectQuickScan(curY, curPt, (float) it, true, 1.0);
1315
1316     char *mdata = (char*)m.data.px;
1317     if ( m.size == NR_PIXBLOCK_SIZE_TINY ) mdata=(char*)m.data.p;
1318     uint32_t *ligStart = ((uint32_t*)(mdata + ((il - m.area.x0) + m.rs * (it - m.area.y0))));
1319     for (int y = it; y < ib; y++) {
1320         theI->Reset();
1321         theS->QuickScan(curY, curPt, ((float)(y+1)), theI, 1.0);
1322         theI->Flatten();
1323         theIL->Copy(theI);
1324
1325         raster_info  dest;
1326         dest.startPix=il;
1327         dest.endPix=ir;
1328         dest.sth=il;
1329         dest.stv=y;
1330         dest.buffer=ligStart;
1331         theIL->Raster(dest, NULL, shape_run_A8_OR);
1332         ligStart=((uint32_t*)(((char*)ligStart)+m.rs));
1333     }
1334     theS->EndQuickRaster();
1335     delete theI;
1336     delete theIL;
1337 }
1338
1339
1340 /*
1341   Local Variables:
1342   mode:c++
1343   c-file-style:"stroustrup"
1344   c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
1345   indent-tabs-mode:nil
1346   fill-column:99
1347   End:
1348 */
1349 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=99 :