src/display/nr-arena-glyphs.cpp

   1 #define __NR_ARENA_GLYPHS_C__
   2
   3 /*
   4  * RGBA display list system for inkscape
   5  *
   6  * Author:
   7  *   Lauris Kaplinski <lauris@kaplinski.com>
   8  *
   9  * Copyright (C) 2002 Lauris Kaplinski
  10  *
  11  * Released under GNU GPL
  12  *
  13  */
  14
  15
  16 #ifdef HAVE_CONFIG_H
  17 # include <config.h>
  18 #endif
  19 #include <libnr/nr-blit.h>
  20 #include <libnr/nr-path.h>
  21 #include "../style.h"
  22 #include "nr-arena.h"
  23 #include "nr-arena-glyphs.h"
  24
  25 #ifdef test_glyph_liv
  26 #include "../display/canvas-bpath.h"
  27 #include <libnrtype/font-instance.h>
  28 #include <libnrtype/raster-glyph.h>
  29 #include <libnrtype/RasterFont.h>
  30
  31 // defined in nr-arena-shape.cpp
  32 void nr_pixblock_render_shape_mask_or(NRPixBlock &m, Shape *theS);
  33 #endif
  34
  35 static void nr_arena_glyphs_class_init(NRArenaGlyphsClass *klass);
  36 static void nr_arena_glyphs_init(NRArenaGlyphs *glyphs);
  37 static void nr_arena_glyphs_finalize(NRObject *object);
  38
  39 static guint nr_arena_glyphs_update(NRArenaItem *item, NRRectL *area, NRGC *gc, guint state, guint reset);
  40 static guint nr_arena_glyphs_clip(NRArenaItem *item, NRRectL *area, NRPixBlock *pb);
  41 static NRArenaItem *nr_arena_glyphs_pick(NRArenaItem *item, NR::Point p, double delta, unsigned int sticky);
  42
  43 static NRArenaItemClass *glyphs_parent_class;
  44
  45 NRType
  46 nr_arena_glyphs_get_type(void)
  47 {
  48     static NRType type = 0;
  49     if (!type) {
  50         type = nr_object_register_type(NR_TYPE_ARENA_ITEM,
  51                                        "NRArenaGlyphs",
  52                                        sizeof(NRArenaGlyphsClass),
  53                                        sizeof(NRArenaGlyphs),
  54                                        (void (*)(NRObjectClass *)) nr_arena_glyphs_class_init,
  55                                        (void (*)(NRObject *)) nr_arena_glyphs_init);
  56     }
  57     return type;
  58 }
  59
  60 static void
  61 nr_arena_glyphs_class_init(NRArenaGlyphsClass *klass)
  62 {
  63     NRObjectClass *object_class;
  64     NRArenaItemClass *item_class;
  65
  66     object_class = (NRObjectClass *) klass;
  67     item_class = (NRArenaItemClass *) klass;
  68
  69     glyphs_parent_class = (NRArenaItemClass *) ((NRObjectClass *) klass)->parent;
  70
  71     object_class->finalize = nr_arena_glyphs_finalize;
  72     object_class->cpp_ctor = NRObject::invoke_ctor<NRArenaGlyphs>;
  73
  74     item_class->update = nr_arena_glyphs_update;
  75     item_class->clip = nr_arena_glyphs_clip;
  76     item_class->pick = nr_arena_glyphs_pick;
  77 }
  78
  79 static void
  80 nr_arena_glyphs_init(NRArenaGlyphs *glyphs)
  81 {
  82     glyphs->style = NULL;
  83     nr_matrix_set_identity(&glyphs->g_transform);
  84     glyphs->font = NULL;
  85     glyphs->glyph = 0;
  86
  87     glyphs->rfont = NULL;
  88     glyphs->sfont = NULL;
  89     glyphs->x = glyphs->y = 0.0;
  90 }
  91
  92 static void
  93 nr_arena_glyphs_finalize(NRObject *object)
  94 {
  95     NRArenaGlyphs *glyphs = static_cast<NRArenaGlyphs *>(object);
  96
  97     if (glyphs->rfont) {
  98         glyphs->rfont->Unref();
  99         glyphs->rfont=NULL;
 100     }
 101     if (glyphs->sfont) {
 102         glyphs->sfont->Unref();
 103         glyphs->sfont=NULL;
 104     }
 105
 106     if (glyphs->font) {
 107         glyphs->font->Unref();
 108         glyphs->font=NULL;
 109     }
 110
 111     if (glyphs->style) {
 112         sp_style_unref(glyphs->style);
 113         glyphs->style = NULL;
 114     }
 115
 116     ((NRObjectClass *) glyphs_parent_class)->finalize(object);
 117 }
 118
 119 static guint
 120 nr_arena_glyphs_update(NRArenaItem *item, NRRectL *area, NRGC *gc, guint state, guint reset)
 121 {
 122     NRArenaGlyphs *glyphs;
 123     raster_font *rfont;
 124
 125     glyphs = NR_ARENA_GLYPHS(item);
 126
 127     if (!glyphs->font || !glyphs->style) return NR_ARENA_ITEM_STATE_ALL;
 128     if ((glyphs->style->fill.type == SP_PAINT_TYPE_NONE) && (glyphs->style->stroke.type == SP_PAINT_TYPE_NONE)) return NR_ARENA_ITEM_STATE_ALL;
 129
 130     NRRect bbox;
 131     bbox.x0 = bbox.y0 = NR_HUGE;
 132     bbox.x1 = bbox.y1 = -NR_HUGE;
 133
 134     float const scale = NR_MATRIX_DF_EXPANSION(&gc->transform);
 135
 136     if (glyphs->style->fill.type != SP_PAINT_TYPE_NONE) {
 137         NRMatrix t;
 138         nr_matrix_multiply(&t, &glyphs->g_transform, &gc->transform);
 139         glyphs->x = t.c[4];
 140         glyphs->y = t.c[5];
 141         t.c[4]=0;
 142         t.c[5]=0;
 143         rfont = glyphs->font->RasterFont(t, 0);
 144         if (glyphs->rfont) glyphs->rfont->Unref();
 145         glyphs->rfont = rfont;
 146
 147         if (glyphs->style->stroke.type == SP_PAINT_TYPE_NONE || fabs(glyphs->style->stroke_width.computed * scale) <= 0.01) { // Optimization: do fill bbox only if there's no stroke
 148             NRRect narea;
 149             if ( glyphs->rfont ) glyphs->rfont->BBox(glyphs->glyph, &narea);
 150             bbox.x0 = narea.x0 + glyphs->x;
 151             bbox.y0 = narea.y0 + glyphs->y;
 152             bbox.x1 = narea.x1 + glyphs->x;
 153             bbox.y1 = narea.y1 + glyphs->y;
 154         }
 155     }
 156
 157     if (glyphs->style->stroke.type != SP_PAINT_TYPE_NONE) {
 158         /* Build state data */
 159         NRMatrix t;
 160         nr_matrix_multiply(&t, &glyphs->g_transform, &gc->transform);
 161         glyphs->x = t.c[4];
 162         glyphs->y = t.c[5];
 163         t.c[4]=0;
 164         t.c[5]=0;
 165
 166         if ( fabs(glyphs->style->stroke_width.computed * scale) > 0.01 ) { // sinon c'est 0=oon veut pas de bord
 167             font_style nstyl;
 168             nstyl.transform = t;
 169             nstyl.stroke_width=MAX(0.125, glyphs->style->stroke_width.computed * scale);
 170             if ( glyphs->style->stroke_linecap.computed == SP_STROKE_LINECAP_BUTT ) nstyl.stroke_cap=butt_straight;
 171             if ( glyphs->style->stroke_linecap.computed == SP_STROKE_LINECAP_ROUND ) nstyl.stroke_cap=butt_round;
 172             if ( glyphs->style->stroke_linecap.computed == SP_STROKE_LINECAP_SQUARE ) nstyl.stroke_cap=butt_square;
 173             if ( glyphs->style->stroke_linejoin.computed == SP_STROKE_LINEJOIN_MITER ) nstyl.stroke_join=join_pointy;
 174             if ( glyphs->style->stroke_linejoin.computed == SP_STROKE_LINEJOIN_ROUND ) nstyl.stroke_join=join_round;
 175             if ( glyphs->style->stroke_linejoin.computed == SP_STROKE_LINEJOIN_BEVEL ) nstyl.stroke_join=join_straight;
 176             nstyl.stroke_miter_limit = glyphs->style->stroke_miterlimit.value;
 177             nstyl.nbDash=0;
 178             nstyl.dashes=NULL;
 179             if ( glyphs->style->stroke_dash.n_dash > 0 ) {
 180                 nstyl.nbDash=glyphs->style->stroke_dash.n_dash;
 181                 nstyl.dashes=(double*)malloc(nstyl.nbDash*sizeof(double));
 182                 for (int i = 0; i < nstyl.nbDash; i++) nstyl.dashes[i]= glyphs->style->stroke_dash.dash[i] * scale;
 183             }
 184             rfont = glyphs->font->RasterFont( nstyl);
 185             if ( nstyl.dashes ) free(nstyl.dashes);
 186             if (glyphs->sfont) glyphs->sfont->Unref();
 187             glyphs->sfont = rfont;
 188
 189             NRRect narea;
 190             if ( glyphs->sfont ) glyphs->sfont->BBox(glyphs->glyph, &narea);
 191             narea.x0-=nstyl.stroke_width;
 192             narea.y0-=nstyl.stroke_width;
 193             narea.x1+=nstyl.stroke_width;
 194             narea.y1+=nstyl.stroke_width;
 195             bbox.x0 = narea.x0 + glyphs->x;
 196             bbox.y0 = narea.y0 + glyphs->y;
 197             bbox.x1 = narea.x1 + glyphs->x;
 198             bbox.y1 = narea.y1 + glyphs->y;
 199         }
 200     }
 201     if (nr_rect_d_test_empty(&bbox)) return NR_ARENA_ITEM_STATE_ALL;
 202
 203     item->bbox.x0 = (gint32)(bbox.x0 - 1.0);
 204     item->bbox.y0 = (gint32)(bbox.y0 - 1.0);
 205     item->bbox.x1 = (gint32)(bbox.x1 + 1.0);
 206     item->bbox.y1 = (gint32)(bbox.y1 + 1.0);
 207     nr_arena_request_render_rect(item->arena, &item->bbox);
 208
 209     return NR_ARENA_ITEM_STATE_ALL;
 210 }
 211
 212 static guint
 213 nr_arena_glyphs_clip(NRArenaItem *item, NRRectL *area, NRPixBlock *pb)
 214 {
 215     NRArenaGlyphs *glyphs;
 216
 217     glyphs = NR_ARENA_GLYPHS(item);
 218
 219     if (!glyphs->font ) return item->state;
 220
 221     /* TODO : render to greyscale pixblock provided for clipping */
 222
 223     return item->state;
 224 }
 225
 226 static NRArenaItem *
 227 nr_arena_glyphs_pick(NRArenaItem *item, NR::Point p, gdouble delta, unsigned int sticky)
 228 {
 229     NRArenaGlyphs *glyphs;
 230
 231     glyphs = NR_ARENA_GLYPHS(item);
 232
 233     if (!glyphs->font ) return NULL;
 234     if (!glyphs->style) return NULL;
 235
 236     double const x = p[NR::X];
 237     double const y = p[NR::Y];
 238     /* With text we take a simple approach: pick if the point is in a characher bbox */
 239     if ((x >= item->bbox.x0) && (y >= item->bbox.y0) && (x <= item->bbox.x1) && (y <= item->bbox.y1)) return item;
 240
 241     return NULL;
 242 }
 243
 244 void
 245 nr_arena_glyphs_set_path(NRArenaGlyphs *glyphs, SPCurve *curve, unsigned int lieutenant, font_instance *font, gint glyph, NRMatrix const *transform)
 246 {
 247     nr_return_if_fail(glyphs != NULL);
 248     nr_return_if_fail(NR_IS_ARENA_GLYPHS(glyphs));
 249
 250     nr_arena_item_request_render(NR_ARENA_ITEM(glyphs));
 251
 252     if (transform) {
 253         glyphs->g_transform = *transform;
 254     } else {
 255         nr_matrix_set_identity(&glyphs->g_transform);
 256     }
 257
 258     if (font) font->Ref();
 259     if (glyphs->font) glyphs->font->Unref();
 260     glyphs->font=font;
 261     glyphs->glyph = glyph;
 262
 263     nr_arena_item_request_update(NR_ARENA_ITEM(glyphs), NR_ARENA_ITEM_STATE_ALL, FALSE);
 264 }
 265
 266 void
 267 nr_arena_glyphs_set_style(NRArenaGlyphs *glyphs, SPStyle *style)
 268 {
 269     nr_return_if_fail(glyphs != NULL);
 270     nr_return_if_fail(NR_IS_ARENA_GLYPHS(glyphs));
 271
 272     if (style) sp_style_ref(style);
 273     if (glyphs->style) sp_style_unref(glyphs->style);
 274     glyphs->style = style;
 275
 276     nr_arena_item_request_update(NR_ARENA_ITEM(glyphs), NR_ARENA_ITEM_STATE_ALL, FALSE);
 277 }
 278
 279 static guint
 280 nr_arena_glyphs_fill_mask(NRArenaGlyphs *glyphs, NRRectL *area, NRPixBlock *m)
 281 {
 282     /* fixme: area == m->area, so merge these */
 283
 284     NRArenaItem *item = NR_ARENA_ITEM(glyphs);
 285
 286     if (glyphs->rfont && nr_rect_l_test_intersect(area, &item->bbox)) {
 287         raster_glyph *g = glyphs->rfont->GetGlyph(glyphs->glyph);
 288         if ( g ) g->Blit(NR::Point(glyphs->x, glyphs->y), *m);
 289     }
 290
 291     return item->state;
 292 }
 293
 294 static guint
 295 nr_arena_glyphs_stroke_mask(NRArenaGlyphs *glyphs, NRRectL *area, NRPixBlock *m)
 296 {
 297     NRArenaItem *item = NR_ARENA_ITEM(glyphs);
 298     if (glyphs->sfont && nr_rect_l_test_intersect(area, &item->bbox)) {
 299         raster_glyph *g=glyphs->sfont->GetGlyph(glyphs->glyph);
 300         if ( g ) g->Blit(NR::Point(glyphs->x, glyphs->y),*m);
 301     }
 302
 303     return item->state;
 304 }
 305
 306 static void nr_arena_glyphs_group_class_init(NRArenaGlyphsGroupClass *klass);
 307 static void nr_arena_glyphs_group_init(NRArenaGlyphsGroup *group);
 308 static void nr_arena_glyphs_group_finalize(NRObject *object);
 309
 310 static guint nr_arena_glyphs_group_update(NRArenaItem *item, NRRectL *area, NRGC *gc, guint state, guint reset);
 311 static unsigned int nr_arena_glyphs_group_render(NRArenaItem *item, NRRectL *area, NRPixBlock *pb, unsigned int flags);
 312 static unsigned int nr_arena_glyphs_group_clip(NRArenaItem *item, NRRectL *area, NRPixBlock *pb);
 313 static NRArenaItem *nr_arena_glyphs_group_pick(NRArenaItem *item, NR::Point p, gdouble delta, unsigned int sticky);
 314
 315 static NRArenaGroupClass *group_parent_class;
 316
 317 NRType
 318 nr_arena_glyphs_group_get_type(void)
 319 {
 320     static NRType type = 0;
 321     if (!type) {
 322         type = nr_object_register_type(NR_TYPE_ARENA_GROUP,
 323                                        "NRArenaGlyphsGroup",
 324                                        sizeof(NRArenaGlyphsGroupClass),
 325                                        sizeof(NRArenaGlyphsGroup),
 326                                        (void (*)(NRObjectClass *)) nr_arena_glyphs_group_class_init,
 327                                        (void (*)(NRObject *)) nr_arena_glyphs_group_init);
 328     }
 329     return type;
 330 }
 331
 332 static void
 333 nr_arena_glyphs_group_class_init(NRArenaGlyphsGroupClass *klass)
 334 {
 335     NRObjectClass *object_class;
 336     NRArenaItemClass *item_class;
 337
 338     object_class = (NRObjectClass *) klass;
 339     item_class = (NRArenaItemClass *) klass;
 340
 341     group_parent_class = (NRArenaGroupClass *) ((NRObjectClass *) klass)->parent;
 342
 343     object_class->finalize = nr_arena_glyphs_group_finalize;
 344     object_class->cpp_ctor = NRObject::invoke_ctor<NRArenaGlyphsGroup>;
 345
 346     item_class->update = nr_arena_glyphs_group_update;
 347     item_class->render = nr_arena_glyphs_group_render;
 348     item_class->clip = nr_arena_glyphs_group_clip;
 349     item_class->pick = nr_arena_glyphs_group_pick;
 350 }
 351
 352 static void
 353 nr_arena_glyphs_group_init(NRArenaGlyphsGroup *group)
 354 {
 355     group->style = NULL;
 356     group->paintbox.x0 = group->paintbox.y0 = 0.0F;
 357     group->paintbox.x1 = group->paintbox.y1 = 1.0F;
 358
 359     group->fill_painter = NULL;
 360     group->stroke_painter = NULL;
 361 }
 362
 363 static void
 364 nr_arena_glyphs_group_finalize(NRObject *object)
 365 {
 366     NRArenaGlyphsGroup *group=static_cast<NRArenaGlyphsGroup *>(object);
 367
 368     if (group->fill_painter) {
 369         sp_painter_free(group->fill_painter);
 370         group->fill_painter = NULL;
 371     }
 372
 373     if (group->stroke_painter) {
 374         sp_painter_free(group->stroke_painter);
 375         group->stroke_painter = NULL;
 376     }
 377
 378     if (group->style) {
 379         sp_style_unref(group->style);
 380         group->style = NULL;
 381     }
 382
 383     ((NRObjectClass *) group_parent_class)->finalize(object);
 384 }
 385
 386 static guint
 387 nr_arena_glyphs_group_update(NRArenaItem *item, NRRectL *area, NRGC *gc, guint state, guint reset)
 388 {
 389     NRArenaGlyphsGroup *group = NR_ARENA_GLYPHS_GROUP(item);
 390
 391     if (group->fill_painter) {
 392         sp_painter_free(group->fill_painter);
 393         group->fill_painter = NULL;
 394     }
 395
 396     if (group->stroke_painter) {
 397         sp_painter_free(group->stroke_painter);
 398         group->stroke_painter = NULL;
 399     }
 400
 401     item->render_opacity = TRUE;
 402     if (group->style->fill.type == SP_PAINT_TYPE_PAINTSERVER) {
 403         group->fill_painter = sp_paint_server_painter_new(SP_STYLE_FILL_SERVER(group->style),
 404                                                           NR::Matrix(&gc->transform), NR::Matrix(&gc->parent->transform),
 405                                                           &group->paintbox);
 406         item->render_opacity = FALSE;
 407     }
 408
 409     if (group->style->stroke.type == SP_PAINT_TYPE_PAINTSERVER) {
 410         group->stroke_painter = sp_paint_server_painter_new(SP_STYLE_STROKE_SERVER(group->style),
 411                                                             NR::Matrix(&gc->transform), NR::Matrix(&gc->parent->transform),
 412                                                             &group->paintbox);
 413         item->render_opacity = FALSE;
 414     }
 415
 416     if ( item->render_opacity == TRUE && group->style->stroke.type != SP_PAINT_TYPE_NONE && group->style->fill.type != SP_PAINT_TYPE_NONE ) {
 417         item->render_opacity=FALSE;
 418     }
 419
 420     if (((NRArenaItemClass *) group_parent_class)->update)
 421         return ((NRArenaItemClass *) group_parent_class)->update(item, area, gc, state, reset);
 422
 423     return NR_ARENA_ITEM_STATE_ALL;
 424 }
 425
 426 /* This sucks - as soon, as we have inheritable renderprops, do something with that opacity */
 427
 428 static unsigned int
 429 nr_arena_glyphs_group_render(NRArenaItem *item, NRRectL *area, NRPixBlock *pb, unsigned int flags)
 430 {
 431     NRArenaItem *child;
 432
 433     NRArenaGroup *group = NR_ARENA_GROUP(item);
 434     NRArenaGlyphsGroup *ggroup = NR_ARENA_GLYPHS_GROUP(item);
 435     SPStyle const *style = ggroup->style;
 436
 437     guint ret = item->state;
 438
 439     /* Fill */
 440     if (style->fill.type != SP_PAINT_TYPE_NONE || item->arena->rendermode == RENDERMODE_OUTLINE) {
 441         NRPixBlock m;
 442         nr_pixblock_setup_fast(&m, NR_PIXBLOCK_MODE_A8, area->x0, area->y0, area->x1, area->y1, TRUE);
 443
 444         // if memory allocation failed, abort
 445         if (m.size != NR_PIXBLOCK_SIZE_TINY && m.data.px == NULL) {
 446             nr_pixblock_release (&m);
 447             return (item->state);
 448         }
 449
 450         m.visible_area = pb->visible_area;
 451
 452         /* Render children fill mask */
 453         for (child = group->children; child != NULL; child = child->next) {
 454             ret = nr_arena_glyphs_fill_mask(NR_ARENA_GLYPHS(child), area, &m);
 455             if (!(ret & NR_ARENA_ITEM_STATE_RENDER)) {
 456                 nr_pixblock_release(&m);
 457                 return ret;
 458             }
 459         }
 460
 461         /* Composite into buffer */
 462         if (style->fill.type == SP_PAINT_TYPE_COLOR || item->arena->rendermode == RENDERMODE_OUTLINE) {
 463             guint32 rgba;
 464             if (item->arena->rendermode == RENDERMODE_OUTLINE) {
 465                 // In outline mode, render fill only, using outlinecolor
 466                 rgba = item->arena->outlinecolor;
 467             } else if ( item->render_opacity ) {
 468                 rgba = sp_color_get_rgba32_falpha(&style->fill.value.color,
 469                                                   SP_SCALE24_TO_FLOAT(style->fill_opacity.value) *
 470                                                   SP_SCALE24_TO_FLOAT(style->opacity.value));
 471             } else {
 472                 rgba = sp_color_get_rgba32_falpha(&style->fill.value.color, SP_SCALE24_TO_FLOAT(style->fill_opacity.value));
 473             }
 474             nr_blit_pixblock_mask_rgba32(pb, &m, rgba);
 475             pb->empty = FALSE;
 476         } else if (style->fill.type == SP_PAINT_TYPE_PAINTSERVER) {
 477             if (ggroup->fill_painter) {
 478                 nr_arena_render_paintserver_fill(pb, area, ggroup->fill_painter, SP_SCALE24_TO_FLOAT(style->fill_opacity.value), &m);
 479             }
 480         }
 481
 482         nr_pixblock_release(&m);
 483     }
 484
 485     /* Stroke */
 486     if (style->stroke.type != SP_PAINT_TYPE_NONE && !(item->arena->rendermode == RENDERMODE_OUTLINE)) {
 487         NRPixBlock m;
 488         guint32 rgba;
 489         nr_pixblock_setup_fast(&m, NR_PIXBLOCK_MODE_A8, area->x0, area->y0, area->x1, area->y1, TRUE);
 490
 491         // if memory allocation failed, abort
 492         if (m.size != NR_PIXBLOCK_SIZE_TINY && m.data.px == NULL) {
 493             nr_pixblock_release (&m);
 494             return (item->state);
 495         }
 496
 497         m.visible_area = pb->visible_area;
 498         /* Render children stroke mask */
 499         for (child = group->children; child != NULL; child = child->next) {
 500             ret = nr_arena_glyphs_stroke_mask(NR_ARENA_GLYPHS(child), area, &m);
 501             if (!(ret & NR_ARENA_ITEM_STATE_RENDER)) {
 502                 nr_pixblock_release(&m);
 503                 return ret;
 504             }
 505         }
 506         /* Composite into buffer */
 507         switch (style->stroke.type) {
 508             case SP_PAINT_TYPE_COLOR:
 509                 if ( item->render_opacity ) {
 510                     rgba = sp_color_get_rgba32_falpha(&style->stroke.value.color,
 511                                                       SP_SCALE24_TO_FLOAT(style->stroke_opacity.value) *
 512                                                       SP_SCALE24_TO_FLOAT(style->opacity.value));
 513                 } else {
 514                     rgba = sp_color_get_rgba32_falpha(&style->stroke.value.color,
 515                                                       SP_SCALE24_TO_FLOAT(style->stroke_opacity.value));
 516                 }
 517                 nr_blit_pixblock_mask_rgba32(pb, &m, rgba);
 518                 pb->empty = FALSE;
 519                 break;
 520             case SP_PAINT_TYPE_PAINTSERVER:
 521                 if (ggroup->stroke_painter) {
 522                     nr_arena_render_paintserver_fill(pb, area, ggroup->stroke_painter, SP_SCALE24_TO_FLOAT(style->stroke_opacity.value), &m);
 523                 }
 524                 break;
 525             default:
 526                 break;
 527         }
 528         nr_pixblock_release(&m);
 529     }
 530
 531     return ret;
 532 }
 533
 534 static unsigned int
 535 nr_arena_glyphs_group_clip(NRArenaItem *item, NRRectL *area, NRPixBlock *pb)
 536 {
 537     NRArenaGroup *group = NR_ARENA_GROUP(item);
 538
 539     guint ret = item->state;
 540
 541     /* Render children fill mask */
 542     for (NRArenaItem *child = group->children; child != NULL; child = child->next) {
 543         ret = nr_arena_glyphs_fill_mask(NR_ARENA_GLYPHS(child), area, pb);
 544         if (!(ret & NR_ARENA_ITEM_STATE_RENDER)) return ret;
 545     }
 546
 547     return ret;
 548 }
 549
 550 static NRArenaItem *
 551 nr_arena_glyphs_group_pick(NRArenaItem *item, NR::Point p, gdouble delta, unsigned int sticky)
 552 {
 553     NRArenaItem *picked = NULL;
 554
 555     if (((NRArenaItemClass *) group_parent_class)->pick)
 556         picked = ((NRArenaItemClass *) group_parent_class)->pick(item, p, delta, sticky);
 557
 558     if (picked) picked = item;
 559
 560     return picked;
 561 }
 562
 563 void
 564 nr_arena_glyphs_group_clear(NRArenaGlyphsGroup *sg)
 565 {
 566     NRArenaGroup *group = NR_ARENA_GROUP(sg);
 567
 568     nr_arena_item_request_render(NR_ARENA_ITEM(group));
 569
 570     while (group->children) {
 571         nr_arena_item_remove_child(NR_ARENA_ITEM(group), group->children);
 572     }
 573 }
 574
 575 void
 576 nr_arena_glyphs_group_add_component(NRArenaGlyphsGroup *sg, font_instance *font, int glyph, NRMatrix const *transform)
 577 {
 578     NRArenaGroup *group;
 579     NRBPath bpath;
 580
 581     group = NR_ARENA_GROUP(sg);
 582
 583     bpath.path = ( font
 584                    ? (NArtBpath *) font->ArtBPath(glyph)
 585                    : NULL );
 586     if ( bpath.path ) {
 587
 588         nr_arena_item_request_render(NR_ARENA_ITEM(group));
 589
 590         NRArenaItem *new_arena = NRArenaGlyphs::create(group->arena);
 591         nr_arena_item_append_child(NR_ARENA_ITEM(group), new_arena);
 592         nr_arena_item_unref(new_arena);
 593         nr_arena_glyphs_set_path(NR_ARENA_GLYPHS(new_arena), NULL, FALSE, font, glyph, transform);
 594         nr_arena_glyphs_set_style(NR_ARENA_GLYPHS(new_arena), sg->style);
 595     }
 596 }
 597
 598 void
 599 nr_arena_glyphs_group_set_style(NRArenaGlyphsGroup *sg, SPStyle *style)
 600 {
 601     nr_return_if_fail(sg != NULL);
 602     nr_return_if_fail(NR_IS_ARENA_GLYPHS_GROUP(sg));
 603
 604     NRArenaGroup *group = NR_ARENA_GROUP(sg);
 605
 606     if (style) sp_style_ref(style);
 607     if (sg->style) sp_style_unref(sg->style);
 608     sg->style = style;
 609
 610     for (NRArenaItem *child = group->children; child != NULL; child = child->next) {
 611         nr_return_if_fail(NR_IS_ARENA_GLYPHS(child));
 612         nr_arena_glyphs_set_style(NR_ARENA_GLYPHS(child), sg->style);
 613     }
 614
 615     nr_arena_item_request_update(NR_ARENA_ITEM(sg), NR_ARENA_ITEM_STATE_ALL, FALSE);
 616 }
 617
 618 void
 619 nr_arena_glyphs_group_set_paintbox(NRArenaGlyphsGroup *gg, NRRect const *pbox)
 620 {
 621     nr_return_if_fail(gg != NULL);
 622     nr_return_if_fail(NR_IS_ARENA_GLYPHS_GROUP(gg));
 623     nr_return_if_fail(pbox != NULL);
 624
 625     if ((pbox->x0 < pbox->x1) && (pbox->y0 < pbox->y1)) {
 626         gg->paintbox.x0 = pbox->x0;
 627         gg->paintbox.y0 = pbox->y0;
 628         gg->paintbox.x1 = pbox->x1;
 629         gg->paintbox.y1 = pbox->y1;
 630     } else {
 631         /* fixme: We kill warning, although not sure what to do here (Lauris) */
 632         gg->paintbox.x0 = gg->paintbox.y0 = 0.0F;
 633         gg->paintbox.x1 = gg->paintbox.y1 = 256.0F;
 634     }
 635
 636     nr_arena_item_request_update(NR_ARENA_ITEM(gg), NR_ARENA_ITEM_STATE_ALL, FALSE);
 637 }
 638
 639
 640 /*
 641   Local Variables:
 642   mode:c++
 643   c-file-style:"stroustrup"
 644   c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
 645   indent-tabs-mode:nil
 646   fill-column:99
 647   End:
 648 */
 649 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=99 :