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 || !shape->style) return NR_ARENA_ITEM_STATE_ALL;
 330     if (sp_curve_is_empty(shape->curve)) return NR_ARENA_ITEM_STATE_ALL;
 331     if ( ( shape->_fill.paint.type() == NRArenaShape::Paint::NONE ) &&
 332          ( shape->_stroke.paint.type() == NRArenaShape::Paint::NONE && !outline) )
 333     {
 334         return NR_ARENA_ITEM_STATE_ALL;
 335     }
 336
 337     /* Build state data */
 338     if ( shape->delayed_shp ) {
 339         item->bbox=shape->approx_bbox;
 340     } else {
 341         nr_arena_shape_update_stroke(shape, gc, area);
 342         nr_arena_shape_update_fill(shape, gc, area);
 343
 344         bbox.x0 = bbox.y0 = bbox.x1 = bbox.y1 = 0.0;
 345         nr_arena_shape_add_bboxes(shape,bbox);
 346
 347         shape->approx_bbox.x0 = (gint32)(bbox.x0 - 1.0F);
 348         shape->approx_bbox.y0 = (gint32)(bbox.y0 - 1.0F);
 349         shape->approx_bbox.x1 = (gint32)(bbox.x1 + 1.9999F);
 350         shape->approx_bbox.y1 = (gint32)(bbox.y1 + 1.9999F);
 351     }
 352
 353     if (nr_rect_d_test_empty(&bbox)) return NR_ARENA_ITEM_STATE_ALL;
 354
 355     item->bbox.x0 = (gint32)(bbox.x0 - 1.0F);
 356     item->bbox.y0 = (gint32)(bbox.y0 - 1.0F);
 357     item->bbox.x1 = (gint32)(bbox.x1 + 1.0F);
 358     item->bbox.y1 = (gint32)(bbox.y1 + 1.0F);
 359     nr_arena_request_render_rect(item->arena, &item->bbox);
 360
 361     item->render_opacity = TRUE;
 362     if ( shape->_fill.paint.type() == NRArenaShape::Paint::SERVER ) {
 363         if (gc && gc->parent) {
 364             shape->fill_painter = sp_paint_server_painter_new(shape->_fill.paint.server(),
 365                                                               NR::Matrix(&gc->transform), NR::Matrix(&gc->parent->transform),
 366                                                               &shape->paintbox);
 367         }
 368         item->render_opacity = FALSE;
 369     }
 370     if ( shape->_stroke.paint.type() == NRArenaShape::Paint::SERVER ) {
 371         if (gc && gc->parent) {
 372             shape->stroke_painter = sp_paint_server_painter_new(shape->_stroke.paint.server(),
 373                                                                 NR::Matrix(&gc->transform), NR::Matrix(&gc->parent->transform),
 374                                                                 &shape->paintbox);
 375         }
 376         item->render_opacity = FALSE;
 377     }
 378     if ( item->render_opacity == TRUE
 379          && shape->_fill.paint.type()   != NRArenaShape::Paint::NONE
 380          && shape->_stroke.paint.type() != NRArenaShape::Paint::NONE )
 381     {
 382         // don't merge item opacity with paint opacity if there is a stroke on the fill
 383         item->render_opacity = FALSE;
 384     }
 385
 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     }
 391
 392     return NR_ARENA_ITEM_STATE_ALL;
 393 }
 394
 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 }
 416
 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 }
 420
 421 /** force_shape is used for clipping paths, when we need the shape for clipping even if it's not filled */
 422 void
 423 nr_arena_shape_update_fill(NRArenaShape *shape, NRGC *gc, NRRectL *area, bool force_shape)
 424 {
 425     if ((shape->_fill.paint.type() != NRArenaShape::Paint::NONE || force_shape) &&
 426         ((shape->curve->end > 2) || (SP_CURVE_BPATH(shape->curve)[1].code == NR_CURVETO)) ) {
 427         if (TRUE || !shape->fill_shp) {
 428             NR::Matrix  cached_to_new = NR::identity();
 429             int isometry = 0;
 430             if ( shape->cached_fill ) {
 431                 if (shape->cached_fctm == gc->transform) {
 432                     isometry = 2; // identity
 433                 } else {
 434                     cached_to_new = shape->cached_fctm.inverse() * gc->transform;
 435                     isometry = matrix_is_isometry(cached_to_new);
 436                 }
 437                 if (0 != isometry && !is_inner_area(shape->cached_farea, *area))
 438                     isometry = 0;
 439             }
 440             if ( isometry == 0 ) {
 441                 if ( shape->cached_fill == NULL ) shape->cached_fill=new Shape;
 442                 shape->cached_fill->Reset();
 443
 444                 Path*  thePath=new Path;
 445                 Shape* theShape=new Shape;
 446                 {
 447                     NR::Matrix   tempMat(gc->transform);
 448                     thePath->LoadArtBPath(SP_CURVE_BPATH(shape->curve),tempMat,true);
 449                 }
 450
 451                 if (is_inner_area(*area, NR_ARENA_ITEM(shape)->bbox)) {
 452                     thePath->Convert(1.0);
 453                     shape->cached_fpartialy = false;
 454                 } else {
 455                     thePath->Convert(area, 1.0);
 456                     shape->cached_fpartialy = true;
 457                 }
 458
 459                 thePath->Fill(theShape, 0);
 460
 461                 if ( shape->_fill.rule == NRArenaShape::EVEN_ODD ) {
 462                     shape->cached_fill->ConvertToShape(theShape, fill_oddEven);
 463                     // alternatively, this speeds up rendering of oddeven shapes but disables AA :(
 464                     //shape->cached_fill->Copy(theShape);
 465                 } else {
 466                     shape->cached_fill->ConvertToShape(theShape, fill_nonZero);
 467                 }
 468                 shape->cached_fctm=gc->transform;
 469                 shape->cached_farea = *area;
 470                 delete theShape;
 471                 delete thePath;
 472                 if ( shape->fill_shp == NULL )
 473                     shape->fill_shp = new Shape;
 474
 475                 shape->fill_shp->Copy(shape->cached_fill);
 476
 477             } else if ( 2 == isometry ) {
 478                 if ( shape->fill_shp == NULL ) {
 479                     shape->fill_shp = new Shape;
 480                     shape->fill_shp->Copy(shape->cached_fill);
 481                 }
 482             } else {
 483
 484                 if ( shape->fill_shp == NULL )
 485                     shape->fill_shp = new Shape;
 486
 487                 shape->fill_shp->Reset(shape->cached_fill->numberOfPoints(),
 488                                        shape->cached_fill->numberOfEdges());
 489                 for (int i = 0; i < shape->cached_fill->numberOfPoints(); i++)
 490                     shape->fill_shp->AddPoint(shape->cached_fill->getPoint(i).x * cached_to_new);
 491                 if ( isometry == 1 ) {
 492                     for (int i = 0; i < shape->cached_fill->numberOfEdges(); i++)
 493                         shape->fill_shp->AddEdge(shape->cached_fill->getEdge(i).st,
 494                                                  shape->cached_fill->getEdge(i).en);
 495                 } else if ( isometry == -1 ) { // need to flip poly.
 496                     for (int i = 0; i < shape->cached_fill->numberOfEdges(); i++)
 497                         shape->fill_shp->AddEdge(shape->cached_fill->getEdge(i).en,
 498                                                  shape->cached_fill->getEdge(i).st);
 499                 }
 500                 shape->fill_shp->ForceToPolygon();
 501                 shape->fill_shp->needPointsSorting();
 502                 shape->fill_shp->needEdgesSorting();
 503             }
 504             shape->delayed_shp |= shape->cached_fpartialy;
 505         }
 506     }
 507 }
 508
 509 void
 510 nr_arena_shape_update_stroke(NRArenaShape *shape,NRGC* gc, NRRectL *area)
 511 {
 512     SPStyle* style = shape->style;
 513
 514     float const scale = NR_MATRIX_DF_EXPANSION(&gc->transform);
 515
 516     bool outline = (NR_ARENA_ITEM(shape)->arena->rendermode == RENDERMODE_OUTLINE);
 517
 518     if (outline ||
 519         ((shape->_stroke.paint.type() != NRArenaShape::Paint::NONE) &&
 520          ( fabs(shape->_stroke.width * scale) > 0.01 ))) { // sinon c'est 0=oon veut pas de bord
 521
 522         float style_width = MAX(0.125, shape->_stroke.width * scale);
 523         float width;
 524         if (outline) {
 525             width = 0.5; // 1 pixel wide, independent of zoom
 526         } else {
 527             width = style_width;
 528         }
 529
 530         NR::Matrix  cached_to_new = NR::identity();
 531
 532         int isometry = 0;
 533         if ( shape->cached_stroke ) {
 534             if (shape->cached_sctm == gc->transform) {
 535                 isometry = 2; // identity
 536             } else {
 537                 cached_to_new = shape->cached_sctm.inverse() * gc->transform;
 538                 isometry = matrix_is_isometry(cached_to_new);
 539             }
 540             if (0 != isometry && !is_inner_area(shape->cached_sarea, *area))
 541                 isometry = 0;
 542             if (0 != isometry && width != shape->cached_width) {
 543                 // if this happens without setting style, we have just switched to outline or back
 544                 isometry = 0;
 545             }
 546         }
 547
 548         if ( isometry == 0 ) {
 549             if ( shape->cached_stroke == NULL ) shape->cached_stroke=new Shape;
 550             shape->cached_stroke->Reset();
 551             Path*  thePath = new Path;
 552             Shape* theShape = new Shape;
 553             {
 554                 NR::Matrix   tempMat(gc->transform);
 555                 thePath->LoadArtBPath(SP_CURVE_BPATH(shape->curve), tempMat, true);
 556             }
 557
 558             // add some padding to the rendering area, so clipped path does not go into a render area
 559             NRRectL padded_area = *area;
 560             padded_area.x0 -= (NR::ICoord)width;
 561             padded_area.x1 += (NR::ICoord)width;
 562             padded_area.y0 -= (NR::ICoord)width;
 563             padded_area.y1 += (NR::ICoord)width;
 564             if ((style->stroke_dash.n_dash && !outline) || is_inner_area(padded_area, NR_ARENA_ITEM(shape)->bbox)) {
 565                 thePath->Convert((outline) ? 4.0 : 1.0);
 566                 shape->cached_spartialy = false;
 567             }
 568             else {
 569                 thePath->Convert(&padded_area, (outline) ? 4.0 : 1.0);
 570                 shape->cached_spartialy = true;
 571             }
 572
 573             if (style->stroke_dash.n_dash && !outline) {
 574                 thePath->DashPolylineFromStyle(style, scale, 1.0);
 575             }
 576
 577             ButtType butt=butt_straight;
 578             switch (shape->_stroke.cap) {
 579                 case NRArenaShape::BUTT_CAP:
 580                     butt = butt_straight;
 581                     break;
 582                 case NRArenaShape::ROUND_CAP:
 583                     butt = butt_round;
 584                     break;
 585                 case NRArenaShape::SQUARE_CAP:
 586                     butt = butt_square;
 587                     break;
 588             }
 589             JoinType join=join_straight;
 590             switch (shape->_stroke.join) {
 591                 case NRArenaShape::MITRE_JOIN:
 592                     join = join_pointy;
 593                     break;
 594                 case NRArenaShape::ROUND_JOIN:
 595                     join = join_round;
 596                     break;
 597                 case NRArenaShape::BEVEL_JOIN:
 598                     join = join_straight;
 599                     break;
 600             }
 601
 602             if (outline) {
 603                 butt = butt_straight;
 604                 join = join_straight;
 605             }
 606
 607             thePath->Stroke(theShape, false, 0.5*width, join, butt,
 608                             0.5*width*shape->_stroke.mitre_limit);
 609
 610
 611             if (outline) {
 612                 // speeds it up, but uses evenodd for the stroke shape (which does not matter for 1-pixel wide outline)
 613                 shape->cached_stroke->Copy(theShape);
 614             } else {
 615                 shape->cached_stroke->ConvertToShape(theShape, fill_nonZero);
 616             }
 617
 618             shape->cached_width = width;
 619
 620             shape->cached_sctm=gc->transform;
 621             shape->cached_sarea = *area;
 622             delete thePath;
 623             delete theShape;
 624             if ( shape->stroke_shp == NULL ) shape->stroke_shp=new Shape;
 625
 626             shape->stroke_shp->Copy(shape->cached_stroke);
 627
 628         } else if ( 2 == isometry ) {
 629             if ( shape->stroke_shp == NULL ) {
 630                 shape->stroke_shp=new Shape;
 631                 shape->stroke_shp->Copy(shape->cached_stroke);
 632             }
 633         } else {
 634             if ( shape->stroke_shp == NULL )
 635                 shape->stroke_shp=new Shape;
 636             shape->stroke_shp->Reset(shape->cached_stroke->numberOfPoints(), shape->cached_stroke->numberOfEdges());
 637             for (int i = 0; i < shape->cached_stroke->numberOfPoints(); i++)
 638                 shape->stroke_shp->AddPoint(shape->cached_stroke->getPoint(i).x * cached_to_new);
 639             if ( isometry == 1 ) {
 640                 for (int i = 0; i < shape->cached_stroke->numberOfEdges(); i++)
 641                     shape->stroke_shp->AddEdge(shape->cached_stroke->getEdge(i).st,
 642                                                shape->cached_stroke->getEdge(i).en);
 643             } else if ( isometry == -1 ) {
 644                 for (int i = 0; i < shape->cached_stroke->numberOfEdges(); i++)
 645                     shape->stroke_shp->AddEdge(shape->cached_stroke->getEdge(i).en,
 646                                                shape->cached_stroke->getEdge(i).st);
 647             }
 648             shape->stroke_shp->ForceToPolygon();
 649             shape->stroke_shp->needPointsSorting();
 650             shape->stroke_shp->needEdgesSorting();
 651         }
 652         shape->delayed_shp |= shape->cached_spartialy;
 653     }
 654 }
 655
 656
 657 void
 658 nr_arena_shape_add_bboxes(NRArenaShape* shape, NRRect &bbox)
 659 {
 660     if ( shape->stroke_shp ) {
 661         shape->stroke_shp->CalcBBox();
 662         shape->stroke_shp->leftX=floor(shape->stroke_shp->leftX);
 663         shape->stroke_shp->rightX=ceil(shape->stroke_shp->rightX);
 664         shape->stroke_shp->topY=floor(shape->stroke_shp->topY);
 665         shape->stroke_shp->bottomY=ceil(shape->stroke_shp->bottomY);
 666         if ( bbox.x0 >= bbox.x1 ) {
 667             if ( shape->stroke_shp->leftX < shape->stroke_shp->rightX ) {
 668                 bbox.x0=shape->stroke_shp->leftX;
 669                 bbox.x1=shape->stroke_shp->rightX;
 670             }
 671         } else {
 672             if ( shape->stroke_shp->leftX < bbox.x0 )
 673                 bbox.x0=shape->stroke_shp->leftX;
 674             if ( shape->stroke_shp->rightX > bbox.x1 )
 675                 bbox.x1=shape->stroke_shp->rightX;
 676         }
 677         if ( bbox.y0 >= bbox.y1 ) {
 678             if ( shape->stroke_shp->topY < shape->stroke_shp->bottomY ) {
 679                 bbox.y0=shape->stroke_shp->topY;
 680                 bbox.y1=shape->stroke_shp->bottomY;
 681             }
 682         } else {
 683             if ( shape->stroke_shp->topY < bbox.y0 )
 684                 bbox.y0=shape->stroke_shp->topY;
 685             if ( shape->stroke_shp->bottomY > bbox.y1 )
 686                 bbox.y1=shape->stroke_shp->bottomY;
 687         }
 688     }
 689     if ( shape->fill_shp ) {
 690         shape->fill_shp->CalcBBox();
 691         shape->fill_shp->leftX=floor(shape->fill_shp->leftX);
 692         shape->fill_shp->rightX=ceil(shape->fill_shp->rightX);
 693         shape->fill_shp->topY=floor(shape->fill_shp->topY);
 694         shape->fill_shp->bottomY=ceil(shape->fill_shp->bottomY);
 695         if ( bbox.x0 >= bbox.x1 ) {
 696             if ( shape->fill_shp->leftX < shape->fill_shp->rightX ) {
 697                 bbox.x0=shape->fill_shp->leftX;
 698                 bbox.x1=shape->fill_shp->rightX;
 699             }
 700         } else {
 701             if ( shape->fill_shp->leftX < bbox.x0 ) bbox.x0=shape->fill_shp->leftX;
 702             if ( shape->fill_shp->rightX > bbox.x1 ) bbox.x1=shape->fill_shp->rightX;
 703         }
 704         if ( bbox.y0 >= bbox.y1 ) {
 705             if ( shape->fill_shp->topY < shape->fill_shp->bottomY ) {
 706                 bbox.y0=shape->fill_shp->topY;
 707                 bbox.y1=shape->fill_shp->bottomY;
 708             }
 709         } else {
 710             if ( shape->fill_shp->topY < bbox.y0 ) bbox.y0=shape->fill_shp->topY;
 711             if ( shape->fill_shp->bottomY > bbox.y1 ) bbox.y1=shape->fill_shp->bottomY;
 712         }
 713     }
 714 }
 715
 716 /**
 717  * Renders the item.  Markers are just composed into the parent buffer.
 718  */
 719 static unsigned int
 720 nr_arena_shape_render(NRArenaItem *item, NRRectL *area, NRPixBlock *pb, unsigned int flags)
 721 {
 722     NRArenaShape *shape = NR_ARENA_SHAPE(item);
 723
 724     if (!shape->curve) return item->state;
 725     if (!shape->style) return item->state;
 726
 727     if ( shape->delayed_shp ) {
 728         if ( nr_rect_l_test_intersect(area, &item->bbox) ) {
 729             NRGC   tempGC(NULL);
 730             tempGC.transform=shape->ctm;
 731             shape->delayed_shp = false;
 732             nr_arena_shape_update_stroke(shape,&tempGC,&pb->visible_area);
 733             nr_arena_shape_update_fill(shape,&tempGC,&pb->visible_area);
 734 /*      NRRect bbox;
 735         bbox.x0 = bbox.y0 = bbox.x1 = bbox.y1 = 0.0;
 736         nr_arena_shape_add_bboxes(shape,bbox);
 737         item->bbox.x0 = (gint32)(bbox.x0 - 1.0F);
 738         item->bbox.y0 = (gint32)(bbox.y0 - 1.0F);
 739         item->bbox.x1 = (gint32)(bbox.x1 + 1.0F);
 740         item->bbox.y1 = (gint32)(bbox.y1 + 1.0F);
 741         shape->approx_bbox=item->bbox;*/
 742         } else {
 743             return item->state;
 744         }
 745     }
 746
 747     bool outline = (NR_ARENA_ITEM(shape)->arena->rendermode == RENDERMODE_OUTLINE);
 748
 749     SPStyle const *style = shape->style;
 750     if ( shape->fill_shp && !outline) {
 751         NRPixBlock m;
 752         guint32 rgba;
 753
 754         nr_pixblock_setup_fast(&m, NR_PIXBLOCK_MODE_A8, area->x0, area->y0, area->x1, area->y1, TRUE);
 755
 756         // if memory allocation failed, abort render
 757         if (m.data.px == NULL) {
 758             nr_pixblock_release (&m);
 759             return (item->state);
 760         }
 761
 762         m.visible_area = pb->visible_area;
 763         nr_pixblock_render_shape_mask_or(m,shape->fill_shp);
 764         m.empty = FALSE;
 765
 766         if (shape->_fill.paint.type() == NRArenaShape::Paint::NONE) {
 767             // do not render fill in any way
 768         } else if (shape->_fill.paint.type() == NRArenaShape::Paint::COLOR) {
 769             if ( item->render_opacity ) {
 770                 rgba = sp_color_get_rgba32_falpha(&shape->_fill.paint.color(),
 771                                                   shape->_fill.opacity *
 772                                                   SP_SCALE24_TO_FLOAT(style->opacity.value));
 773             } else {
 774                 rgba = sp_color_get_rgba32_falpha(&shape->_fill.paint.color(),
 775                                                   shape->_fill.opacity);
 776             }
 777             nr_blit_pixblock_mask_rgba32(pb, &m, rgba);
 778             pb->empty = FALSE;
 779         } else if (shape->_fill.paint.type() == NRArenaShape::Paint::SERVER) {
 780             if (shape->fill_painter) {
 781                 nr_arena_render_paintserver_fill(pb, area, shape->fill_painter, shape->_fill.opacity, &m);
 782             }
 783         }
 784
 785         nr_pixblock_release(&m);
 786     }
 787
 788     if ( shape->stroke_shp ) {
 789         NRPixBlock m;
 790         guint32 rgba;
 791
 792         nr_pixblock_setup_fast(&m, NR_PIXBLOCK_MODE_A8, area->x0, area->y0, area->x1, area->y1, TRUE);
 793
 794         // if memory allocation failed, abort render
 795         if (m.data.px == NULL) {
 796             nr_pixblock_release (&m);
 797             return (item->state);
 798         }
 799
 800         m.visible_area = pb->visible_area;
 801         nr_pixblock_render_shape_mask_or(m, shape->stroke_shp);
 802         m.empty = FALSE;
 803
 804         if (shape->_stroke.paint.type() == NRArenaShape::Paint::COLOR || outline) {
 805             if (outline) {
 806                 rgba = NR_ARENA_ITEM(shape)->arena->outlinecolor;
 807             } else if ( item->render_opacity ) {
 808                 rgba = sp_color_get_rgba32_falpha(&shape->_stroke.paint.color(),
 809                                                   shape->_stroke.opacity *
 810                                                   SP_SCALE24_TO_FLOAT(style->opacity.value));
 811             } else {
 812                 rgba = sp_color_get_rgba32_falpha(&shape->_stroke.paint.color(),
 813                                                   shape->_stroke.opacity);
 814             }
 815             nr_blit_pixblock_mask_rgba32(pb, &m, rgba);
 816             pb->empty = FALSE;
 817         } else if (shape->_stroke.paint.type() == NRArenaShape::Paint::SERVER) {
 818             if (shape->stroke_painter) {
 819                 nr_arena_render_paintserver_fill(pb, area, shape->stroke_painter, shape->_stroke.opacity, &m);
 820             }
 821         }
 822
 823         nr_pixblock_release(&m);
 824     }
 825
 826     /* Just compose children into parent buffer */
 827     for (NRArenaItem *child = shape->markers; child != NULL; child = child->next) {
 828         unsigned int ret;
 829         ret = nr_arena_item_invoke_render(child, area, pb, flags);
 830         if (ret & NR_ARENA_ITEM_STATE_INVALID) return ret;
 831     }
 832
 833     return item->state;
 834 }
 835
 836 static guint
 837 nr_arena_shape_clip(NRArenaItem *item, NRRectL *area, NRPixBlock *pb)
 838 {
 839     NRArenaShape *shape = NR_ARENA_SHAPE(item);
 840     if (!shape->curve) return item->state;
 841
 842     if ( shape->delayed_shp || shape->fill_shp == NULL) { // we need a fill shape no matter what
 843         if ( nr_rect_l_test_intersect(area, &item->bbox) ) {
 844             NRGC   tempGC(NULL);
 845             tempGC.transform=shape->ctm;
 846             shape->delayed_shp = false;
 847             nr_arena_shape_update_fill(shape, &tempGC, &pb->visible_area, true);
 848         } else {
 849             return item->state;
 850         }
 851     }
 852
 853     if ( shape->fill_shp ) {
 854         NRPixBlock m;
 855
 856         /* fixme: We can OR in one step (Lauris) */
 857         nr_pixblock_setup_fast(&m, NR_PIXBLOCK_MODE_A8, area->x0, area->y0, area->x1, area->y1, TRUE);
 858
 859         // if memory allocation failed, abort
 860         if (m.data.px == NULL) {
 861             nr_pixblock_release (&m);
 862             return (item->state);
 863         }
 864
 865         m.visible_area = pb->visible_area;
 866         nr_pixblock_render_shape_mask_or(m,shape->fill_shp);
 867
 868         for (int y = area->y0; y < area->y1; y++) {
 869             unsigned char *s, *d;
 870             s = NR_PIXBLOCK_PX(&m) + (y - area->y0) * m.rs;
 871             d = NR_PIXBLOCK_PX(pb) + (y - area->y0) * pb->rs;
 872             for (int x = area->x0; x < area->x1; x++) {
 873                 *d = NR_COMPOSEA_111(*s, *d);
 874                 d ++;
 875                 s ++;
 876             }
 877         }
 878         nr_pixblock_release(&m);
 879         pb->empty = FALSE;
 880     }
 881
 882     return item->state;
 883 }
 884
 885 static NRArenaItem *
 886 nr_arena_shape_pick(NRArenaItem *item, NR::Point p, double delta, unsigned int /*sticky*/)
 887 {
 888     NRArenaShape *shape = NR_ARENA_SHAPE(item);
 889
 890     if (!shape->curve) return NULL;
 891     if (!shape->style) return NULL;
 892     if ( shape->delayed_shp ) {
 893         NRRectL  area, updateArea;
 894         area.x0=(int)floor(p[NR::X]);
 895         area.x1=(int)ceil(p[NR::X]);
 896         area.y0=(int)floor(p[NR::Y]);
 897         area.y1=(int)ceil(p[NR::Y]);
 898         int idelta = (int)ceil(delta) + 1;
 899         // njh: inset rect
 900         area.x0-=idelta;
 901         area.x1+=idelta;
 902         area.y0-=idelta;
 903         area.y1+=idelta;
 904         if ( nr_rect_l_test_intersect(&area, &item->bbox) ) {
 905             NRGC   tempGC(NULL);
 906             tempGC.transform=shape->ctm;
 907             updateArea = item->bbox;
 908             if (shape->cached_stroke)
 909                 nr_rect_l_intersect (&updateArea, &updateArea, &shape->cached_sarea);
 910
 911             shape->delayed_shp = false;
 912             nr_arena_shape_update_stroke(shape, &tempGC, &updateArea);
 913             nr_arena_shape_update_fill(shape, &tempGC, &updateArea);
 914             /*      NRRect bbox;
 915                     bbox.x0 = bbox.y0 = bbox.x1 = bbox.y1 = 0.0;
 916                     nr_arena_shape_add_bboxes(shape,bbox);
 917                     item->bbox.x0 = (gint32)(bbox.x0 - 1.0F);
 918                     item->bbox.y0 = (gint32)(bbox.y0 - 1.0F);
 919                     item->bbox.x1 = (gint32)(bbox.x1 + 1.0F);
 920                     item->bbox.y1 = (gint32)(bbox.y1 + 1.0F);
 921                     shape->approx_bbox=item->bbox;*/
 922         }
 923     }
 924
 925     bool outline = (NR_ARENA_ITEM(shape)->arena->rendermode == RENDERMODE_OUTLINE);
 926
 927     if (item->state & NR_ARENA_ITEM_STATE_RENDER) {
 928         if (shape->fill_shp && (shape->_fill.paint.type() != NRArenaShape::Paint::NONE)) {
 929             if (shape->fill_shp->PtWinding(p) > 0 ) return item;
 930         }
 931         if (shape->stroke_shp && (shape->_stroke.paint.type() != NRArenaShape::Paint::NONE || outline)) {
 932             if (shape->stroke_shp->PtWinding(p) > 0 ) return item;
 933         }
 934         if (delta > 1e-3) {
 935             if (shape->fill_shp && (shape->_fill.paint.type() != NRArenaShape::Paint::NONE)) {
 936                 if (distanceLessThanOrEqual(shape->fill_shp, p, delta)) return item;
 937             }
 938             if (shape->stroke_shp && (shape->_stroke.paint.type() != NRArenaShape::Paint::NONE || outline)) {
 939                 if (distanceLessThanOrEqual(shape->stroke_shp, p, delta)) return item;
 940             }
 941         }
 942     } else {
 943         NRBPath bp;
 944         bp.path = SP_CURVE_BPATH(shape->curve);
 945         double dist = NR_HUGE;
 946         int wind = 0;
 947         nr_path_matrix_point_bbox_wind_distance(&bp, shape->ctm, p, NULL, &wind, &dist, NR_EPSILON);
 948         if (shape->_fill.paint.type() != NRArenaShape::Paint::NONE) {
 949             if (!shape->style->fill_rule.computed) {
 950                 if (wind != 0) return item;
 951             } else {
 952                 if (wind & 0x1) return item;
 953             }
 954         }
 955         if (shape->_stroke.paint.type() != NRArenaShape::Paint::NONE || outline) {
 956             /* fixme: We do not take stroke width into account here (Lauris) */
 957             if (dist < delta) return item;
 958         }
 959     }
 960
 961     return NULL;
 962 }
 963
 964 /**
 965  *
 966  *  Requests a render of the shape, then if the shape is already a curve it
 967  *  unrefs the old curve; if the new curve is valid it creates a copy of the
 968  *  curve and adds it to the shape.  Finally, it requests an update of the
 969  *  arena for the shape.
 970  */
 971 void nr_arena_shape_set_path(NRArenaShape *shape, SPCurve *curve,bool justTrans)
 972 {
 973     g_return_if_fail(shape != NULL);
 974     g_return_if_fail(NR_IS_ARENA_SHAPE(shape));
 975
 976     if ( justTrans == false ) {
 977         // dirty cached versions
 978         if ( shape->cached_fill ) {
 979             delete shape->cached_fill;
 980             shape->cached_fill=NULL;
 981         }
 982         if ( shape->cached_stroke ) {
 983             delete shape->cached_stroke;
 984             shape->cached_stroke=NULL;
 985         }
 986     }
 987
 988     nr_arena_item_request_render(NR_ARENA_ITEM(shape));
 989
 990     if (shape->curve) {
 991         sp_curve_unref(shape->curve);
 992         shape->curve = NULL;
 993     }
 994
 995     if (curve) {
 996         shape->curve = curve;
 997         sp_curve_ref(curve);
 998     }
 999
1000     nr_arena_item_request_update(NR_ARENA_ITEM(shape), NR_ARENA_ITEM_STATE_ALL, FALSE);
1001 }
1002
1003 void NRArenaShape::setFill(SPPaintServer *server) {
1004     _fill.paint.set(server);
1005     _invalidateCachedFill();
1006 }
1007
1008 void NRArenaShape::setFill(SPColor const &color) {
1009     _fill.paint.set(color);
1010     _invalidateCachedFill();
1011 }
1012
1013 void NRArenaShape::setFillOpacity(double opacity) {
1014     _fill.opacity = opacity;
1015     _invalidateCachedFill();
1016 }
1017
1018 void NRArenaShape::setFillRule(NRArenaShape::FillRule rule) {
1019     _fill.rule = rule;
1020     _invalidateCachedFill();
1021 }
1022
1023 void NRArenaShape::setStroke(SPPaintServer *server) {
1024     _stroke.paint.set(server);
1025     _invalidateCachedStroke();
1026 }
1027
1028 void NRArenaShape::setStroke(SPColor const &color) {
1029     _stroke.paint.set(color);
1030     _invalidateCachedStroke();
1031 }
1032
1033 void NRArenaShape::setStrokeOpacity(double opacity) {
1034     _stroke.opacity = opacity;
1035     _invalidateCachedStroke();
1036 }
1037
1038 void NRArenaShape::setStrokeWidth(double width) {
1039     _stroke.width = width;
1040     _invalidateCachedStroke();
1041 }
1042
1043 void NRArenaShape::setMitreLimit(double limit) {
1044     _stroke.mitre_limit = limit;
1045     _invalidateCachedStroke();
1046 }
1047
1048 void NRArenaShape::setLineCap(NRArenaShape::CapType cap) {
1049     _stroke.cap = cap;
1050     _invalidateCachedStroke();
1051 }
1052
1053 void NRArenaShape::setLineJoin(NRArenaShape::JoinType join) {
1054     _stroke.join = join;
1055     _invalidateCachedStroke();
1056 }
1057
1058 /** nr_arena_shape_set_style
1059  *
1060  * Unrefs any existing style and ref's to the given one, then requests an update of the arena
1061  */
1062 void
1063 nr_arena_shape_set_style(NRArenaShape *shape, SPStyle *style)
1064 {
1065     g_return_if_fail(shape != NULL);
1066     g_return_if_fail(NR_IS_ARENA_SHAPE(shape));
1067
1068     if (style) sp_style_ref(style);
1069     if (shape->style) sp_style_unref(shape->style);
1070     shape->style = style;
1071
1072     switch (style->fill.type) {
1073         case SP_PAINT_TYPE_NONE: {
1074             shape->setFill(NULL);
1075             break;
1076         }
1077         case SP_PAINT_TYPE_COLOR: {
1078             shape->setFill(style->fill.value.color);
1079             break;
1080         }
1081         case SP_PAINT_TYPE_PAINTSERVER: {
1082             shape->setFill(style->fill.value.paint.server);
1083             break;
1084         }
1085         default: {
1086             g_assert_not_reached();
1087         }
1088     }
1089     shape->setFillOpacity(SP_SCALE24_TO_FLOAT(style->fill_opacity.value));
1090     switch (style->fill_rule.computed) {
1091         case SP_WIND_RULE_EVENODD: {
1092             shape->setFillRule(NRArenaShape::EVEN_ODD);
1093             break;
1094         }
1095         case SP_WIND_RULE_NONZERO: {
1096             shape->setFillRule(NRArenaShape::NONZERO);
1097             break;
1098         }
1099         default: {
1100             g_assert_not_reached();
1101         }
1102     }
1103
1104     switch (style->stroke.type) {
1105         case SP_PAINT_TYPE_NONE: {
1106             shape->setStroke(NULL);
1107             break;
1108         }
1109         case SP_PAINT_TYPE_COLOR: {
1110             shape->setStroke(style->stroke.value.color);
1111             break;
1112         }
1113         case SP_PAINT_TYPE_PAINTSERVER: {
1114             shape->setStroke(style->stroke.value.paint.server);
1115             break;
1116         }
1117         default: {
1118             g_assert_not_reached();
1119         }
1120     }
1121     shape->setStrokeWidth(style->stroke_width.computed);
1122     shape->setStrokeOpacity(SP_SCALE24_TO_FLOAT(style->stroke_opacity.value));
1123     switch (style->stroke_linecap.computed) {
1124         case SP_STROKE_LINECAP_ROUND: {
1125             shape->setLineCap(NRArenaShape::ROUND_CAP);
1126             break;
1127         }
1128         case SP_STROKE_LINECAP_SQUARE: {
1129             shape->setLineCap(NRArenaShape::SQUARE_CAP);
1130             break;
1131         }
1132         case SP_STROKE_LINECAP_BUTT: {
1133             shape->setLineCap(NRArenaShape::BUTT_CAP);
1134             break;
1135         }
1136         default: {
1137             g_assert_not_reached();
1138         }
1139     }
1140     switch (style->stroke_linejoin.computed) {
1141         case SP_STROKE_LINEJOIN_ROUND: {
1142             shape->setLineJoin(NRArenaShape::ROUND_JOIN);
1143             break;
1144         }
1145         case SP_STROKE_LINEJOIN_BEVEL: {
1146             shape->setLineJoin(NRArenaShape::BEVEL_JOIN);
1147             break;
1148         }
1149         case SP_STROKE_LINEJOIN_MITER: {
1150             shape->setLineJoin(NRArenaShape::MITRE_JOIN);
1151             break;
1152         }
1153         default: {
1154             g_assert_not_reached();
1155         }
1156     }
1157     shape->setMitreLimit(style->stroke_miterlimit.value);
1158
1159     //if shape has a filter
1160     if (style->filter.set && style->filter.filter)
1161     {
1162         shape->filter = new NR::Filter();
1163         shape->filter->set_x(style->filter.filter->x);
1164         shape->filter->set_y(style->filter.filter->y);
1165         shape->filter->set_width(style->filter.filter->width);
1166         shape->filter->set_height(style->filter.filter->height);
1167
1168         //go through all SP filter primitives
1169         for(int i=0; i<style->filter.filter->_primitive_count; i++)
1170         {
1171             SPFilterPrimitive *primitive = style->filter.filter->_primitives[i];
1172             //if primitive is gaussianblur
1173 //            if(SP_IS_GAUSSIANBLUR(primitive))
1174             {
1175                 NR::FilterGaussian * gaussian = (NR::FilterGaussian *) shape->filter->add_primitive(NR::NR_FILTER_GAUSSIANBLUR);
1176                 SPGaussianBlur * spblur = SP_GAUSSIANBLUR(primitive);
1177                 float num = spblur->stdDeviation.getNumber();
1178                 if( num>=0.0 )
1179                 {
1180                     float optnum = spblur->stdDeviation.getOptNumber();
1181                     if( optnum>=0.0 )
1182                         gaussian->set_deviation((double) num, (double) optnum);
1183                     else
1184                         gaussian->set_deviation((double) num);
1185                 }
1186             }
1187         }
1188     }
1189     else
1190     {
1191         //no filter set for this shape
1192         shape->filter = NULL;
1193     }
1194
1195     nr_arena_item_request_update(shape, NR_ARENA_ITEM_STATE_ALL, FALSE);
1196 }
1197
1198 void
1199 nr_arena_shape_set_paintbox(NRArenaShape *shape, NRRect const *pbox)
1200 {
1201     g_return_if_fail(shape != NULL);
1202     g_return_if_fail(NR_IS_ARENA_SHAPE(shape));
1203     g_return_if_fail(pbox != NULL);
1204
1205     if ((pbox->x0 < pbox->x1) && (pbox->y0 < pbox->y1)) {
1206         shape->paintbox = *pbox;
1207     } else {
1208         /* fixme: We kill warning, although not sure what to do here (Lauris) */
1209         shape->paintbox.x0 = shape->paintbox.y0 = 0.0F;
1210         shape->paintbox.x1 = shape->paintbox.y1 = 256.0F;
1211     }
1212
1213     nr_arena_item_request_update(shape, NR_ARENA_ITEM_STATE_ALL, FALSE);
1214 }
1215
1216 void NRArenaShape::setPaintBox(NR::Rect const &pbox)
1217 {
1218     paintbox.x0 = pbox.min()[NR::X];
1219     paintbox.y0 = pbox.min()[NR::Y];
1220     paintbox.x1 = pbox.max()[NR::X];
1221     paintbox.y1 = pbox.max()[NR::Y];
1222
1223     nr_arena_item_request_update(this, NR_ARENA_ITEM_STATE_ALL, FALSE);
1224 }
1225
1226 static void
1227 shape_run_A8_OR(raster_info &dest,void */*data*/,int st,float vst,int en,float ven)
1228 {
1229     if ( st >= en ) return;
1230     if ( vst < 0 ) vst=0;
1231     if ( vst > 1 ) vst=1;
1232     if ( ven < 0 ) ven=0;
1233     if ( ven > 1 ) ven=1;
1234     float   sv=vst;
1235     float   dv=ven-vst;
1236     int     len=en-st;
1237     unsigned char*   d=(unsigned char*)dest.buffer;
1238     d+=(st-dest.startPix);
1239     if ( fabs(dv) < 0.001 ) {
1240         if ( vst > 0.999 ) {
1241             /* Simple copy */
1242             while (len > 0) {
1243                 d[0] = 255;
1244                 d += 1;
1245                 len -= 1;
1246             }
1247         } else {
1248             sv*=256;
1249             unsigned int c0_24=(int)sv;
1250             c0_24&=0xFF;
1251             while (len > 0) {
1252                 /* Draw */
1253                 d[0] = NR_COMPOSEA_111(c0_24,d[0]);
1254                 d += 1;
1255                 len -= 1;
1256             }
1257         }
1258     } else {
1259         if ( en <= st+1 ) {
1260             sv=0.5*(vst+ven);
1261             sv*=256;
1262             unsigned int c0_24=(int)sv;
1263             c0_24&=0xFF;
1264             /* Draw */
1265             d[0] = NR_COMPOSEA_111(c0_24,d[0]);
1266         } else {
1267             dv/=len;
1268             sv+=0.5*dv; // correction trapezoidale
1269             sv*=16777216;
1270             dv*=16777216;
1271             int c0_24 = static_cast<int>(CLAMP(sv, 0, 16777216));
1272             int s0_24 = static_cast<int>(dv);
1273             while (len > 0) {
1274                 unsigned int ca;
1275                 /* Draw */
1276                 ca = c0_24 >> 16;
1277                 if ( ca > 255 ) ca=255;
1278                 d[0] = NR_COMPOSEA_111(ca,d[0]);
1279                 d += 1;
1280                 c0_24 += s0_24;
1281                 c0_24 = CLAMP(c0_24, 0, 16777216);
1282                 len -= 1;
1283             }
1284         }
1285     }
1286 }
1287
1288 void nr_pixblock_render_shape_mask_or(NRPixBlock &m,Shape* theS)
1289 {
1290     theS->CalcBBox();
1291     float l = theS->leftX, r = theS->rightX, t = theS->topY, b = theS->bottomY;
1292     int    il,ir,it,ib;
1293     il=(int)floor(l);
1294     ir=(int)ceil(r);
1295     it=(int)floor(t);
1296     ib=(int)ceil(b);
1297
1298     if ( il >= m.area.x1 || ir <= m.area.x0 || it >= m.area.y1 || ib <= m.area.y0 ) return;
1299     if ( il < m.area.x0 ) il=m.area.x0;
1300     if ( it < m.area.y0 ) it=m.area.y0;
1301     if ( ir > m.area.x1 ) ir=m.area.x1;
1302     if ( ib > m.area.y1 ) ib=m.area.y1;
1303
1304     /* This is the FloatLigne version.  See svn (prior to Apr 2006) for versions using BitLigne or direct BitLigne. */
1305     int    curPt;
1306     float  curY;
1307     theS->BeginQuickRaster(curY, curPt);
1308
1309     FloatLigne *theI = new FloatLigne();
1310     IntLigne *theIL = new IntLigne();
1311
1312     theS->DirectQuickScan(curY, curPt, (float) it, true, 1.0);
1313
1314     char *mdata = (char*)m.data.px;
1315     if ( m.size == NR_PIXBLOCK_SIZE_TINY ) mdata=(char*)m.data.p;
1316     uint32_t *ligStart = ((uint32_t*)(mdata + ((il - m.area.x0) + m.rs * (it - m.area.y0))));
1317     for (int y = it; y < ib; y++) {
1318         theI->Reset();
1319         theS->QuickScan(curY, curPt, ((float)(y+1)), theI, 1.0);
1320         theI->Flatten();
1321         theIL->Copy(theI);
1322
1323         raster_info  dest;
1324         dest.startPix=il;
1325         dest.endPix=ir;
1326         dest.sth=il;
1327         dest.stv=y;
1328         dest.buffer=ligStart;
1329         theIL->Raster(dest, NULL, shape_run_A8_OR);
1330         ligStart=((uint32_t*)(((char*)ligStart)+m.rs));
1331     }
1332     theS->EndQuickRaster();
1333     delete theI;
1334     delete theIL;
1335 }
1336
1337
1338 /*
1339   Local Variables:
1340   mode:c++
1341   c-file-style:"stroustrup"
1342   c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
1343   indent-tabs-mode:nil
1344   fill-column:99
1345   End:
1346 */
1347 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=99 :