gtk2_ardour/canvas-simplerect.c

   1 #include <stdio.h>
   2 #include <math.h>
   3 #include <libgnomecanvas/libgnomecanvas.h>
   4
   5 #include "canvas-simplerect.h"
   6 #include "rgb_macros.h"
   7 #include "gettext.h"
   8 #define _(Text)  dgettext (PACKAGE,Text)
   9
  10 enum {
  11         PROP_0,
  12         PROP_X1,
  13         PROP_Y1,
  14         PROP_X2,
  15         PROP_Y2,
  16         PROP_OUTLINE_PIXELS,
  17         PROP_OUTLINE_WHAT,
  18         PROP_FILL,
  19         PROP_FILL_COLOR_RGBA,
  20         PROP_OUTLINE_COLOR_RGBA,
  21         PROP_DRAW
  22
  23 };
  24
  25 static void   gnome_canvas_simplerect_class_init    (GnomeCanvasSimpleRectClass *class);
  26
  27 static void   gnome_canvas_simplerect_init          (GnomeCanvasSimpleRect      *simplerect);
  28
  29 static void   gnome_canvas_simplerect_destroy       (GtkObject                  *object);
  30
  31 static void   gnome_canvas_simplerect_set_property  (GObject        *object,
  32                                                      guint            prop_id,
  33                                                      const GValue   *value,
  34                                                      GParamSpec     *pspec);
  35
  36 static void   gnome_canvas_simplerect_get_property  (GObject        *object,
  37                                                      guint           prop_id,
  38                                                      GValue         *value,
  39                                                      GParamSpec     *pspec);
  40
  41 static void   gnome_canvas_simplerect_update        (GnomeCanvasItem *item,
  42                                                      double          *affine,
  43                                                      ArtSVP          *clip_path,
  44                                                      int              flags);
  45
  46 static void   gnome_canvas_simplerect_bounds        (GnomeCanvasItem *item,
  47                                                      double          *x1,
  48                                                      double          *y1,
  49                                                      double          *x2,
  50                                                      double          *y2);
  51
  52 static double gnome_canvas_simplerect_point         (GnomeCanvasItem *item, double x, double y, int cx, int cy, GnomeCanvasItem **actual_item);
  53
  54 static void   gnome_canvas_simplerect_render        (GnomeCanvasItem *item, GnomeCanvasBuf *buf);
  55
  56 static void   gnome_canvas_simplerect_draw          (GnomeCanvasItem *item, GdkDrawable *drawable, int x, int y, int w, int h);
  57
  58 static GnomeCanvasItemClass *parent_class;
  59
  60
  61 GType
  62 gnome_canvas_simplerect_get_type (void)
  63 {
  64         static GType simplerect_type;
  65
  66         if (!simplerect_type) {
  67                 static const GTypeInfo object_info = {
  68                         sizeof (GnomeCanvasSimpleRectClass),
  69                         (GBaseInitFunc) NULL,
  70                         (GBaseFinalizeFunc) NULL,
  71                         (GClassInitFunc) gnome_canvas_simplerect_class_init,
  72                         (GClassFinalizeFunc) NULL,
  73                         NULL,                   /* class_data */
  74                         sizeof (GnomeCanvasSimpleRect),
  75                         0,                      /* n_preallocs */
  76                         (GInstanceInitFunc) gnome_canvas_simplerect_init,
  77                         NULL                    /* value_table */
  78                 };
  79
  80                 simplerect_type = g_type_register_static (GNOME_TYPE_CANVAS_ITEM, "GnomeCanvasSimpleRect",
  81                                                           &object_info, 0);
  82         }
  83
  84         return simplerect_type;
  85 }
  86
  87 static void
  88 gnome_canvas_simplerect_class_init (GnomeCanvasSimpleRectClass *class)
  89 {
  90         GObjectClass *gobject_class;
  91         GtkObjectClass *object_class;
  92         GnomeCanvasItemClass *item_class;
  93
  94         gobject_class = (GObjectClass *) class;
  95         object_class = (GtkObjectClass *) class;
  96         item_class = (GnomeCanvasItemClass *) class;
  97
  98         parent_class = g_type_class_peek_parent (class);
  99
 100         gobject_class->set_property = gnome_canvas_simplerect_set_property;
 101         gobject_class->get_property = gnome_canvas_simplerect_get_property;
 102
 103         g_object_class_install_property (gobject_class,
 104                                          PROP_X1,
 105                                          g_param_spec_double ("x1",
 106                                                               _("x1"),
 107                                                               _("x coordinate of upper left corner of rect"),
 108                                                               -G_MAXDOUBLE,
 109                                                               G_MAXDOUBLE,
 110                                                               0.0,
 111                                                               G_PARAM_READWRITE));
 112
 113         g_object_class_install_property (gobject_class,
 114                                          PROP_Y1,
 115                                          g_param_spec_double ("y1",
 116                                                               _("y1"),
 117                                                               _("y coordinate of upper left corner of rect "),
 118                                                               -G_MAXDOUBLE,
 119                                                               G_MAXDOUBLE,
 120                                                               0.0,
 121                                                               G_PARAM_READWRITE));
 122
 123
 124         g_object_class_install_property (gobject_class,
 125                                          PROP_X2,
 126                                          g_param_spec_double ("x2",
 127                                                               _("x2"),
 128                                                               _("x coordinate of lower right corner of rect"),
 129                                                               -G_MAXDOUBLE,
 130                                                               G_MAXDOUBLE,
 131                                                               0.0,
 132                                                               G_PARAM_READWRITE));
 133
 134         g_object_class_install_property (gobject_class,
 135                                          PROP_Y2,
 136                                          g_param_spec_double ("y2",
 137                                                               _("y2"),
 138                                                               _("y coordinate of lower right corner of rect "),
 139                                                               -G_MAXDOUBLE,
 140                                                               G_MAXDOUBLE,
 141                                                               0.0,
 142                                                               G_PARAM_READWRITE));
 143
 144
 145         g_object_class_install_property (gobject_class,
 146                                          PROP_OUTLINE_PIXELS,
 147                                          g_param_spec_uint ("outline_pixels",
 148                                                               _("outline pixels"),
 149                                                               _("width in pixels of outline"),
 150                                                               0,
 151                                                               G_MAXUINT,
 152                                                               0,
 153                                                               G_PARAM_READWRITE));
 154
 155
 156         g_object_class_install_property (gobject_class,
 157                                          PROP_OUTLINE_WHAT,
 158                                          g_param_spec_uint ("outline_what",
 159                                                               _("outline what"),
 160                                                               _("which boundaries to outline (mask)"),
 161                                                               0,
 162                                                               G_MAXUINT,
 163                                                               0,
 164                                                               G_PARAM_READWRITE));
 165
 166
 167
 168         g_object_class_install_property (gobject_class,
 169                                          PROP_FILL,
 170                                          g_param_spec_boolean ("fill",
 171                                                                _("fill"),
 172                                                                _("fill rectangle"),
 173                                                                TRUE,
 174                                                                G_PARAM_READWRITE));
 175
 176         g_object_class_install_property (gobject_class,
 177                                          PROP_DRAW,
 178                                          g_param_spec_boolean ("draw",
 179                                                                _("draw"),
 180                                                                _("draw rectangle"),
 181                                                                TRUE,
 182                                                                G_PARAM_READWRITE));
 183
 184
 185         g_object_class_install_property (gobject_class,
 186                                          PROP_OUTLINE_COLOR_RGBA,
 187                                          g_param_spec_uint ("outline_color_rgba",
 188                                                             _("outline color rgba"),
 189                                                             _("color of outline"),
 190                                                             0,
 191                                                             G_MAXUINT,
 192                                                             0,
 193                                                             G_PARAM_READWRITE));
 194
 195
 196         g_object_class_install_property (gobject_class,
 197                                          PROP_FILL_COLOR_RGBA,
 198                                          g_param_spec_uint ("fill_color_rgba",
 199                                                             _("fill color rgba"),
 200                                                             _("color of fill"),
 201                                                             0,
 202                                                             G_MAXUINT,
 203                                                             0,
 204                                                             G_PARAM_READWRITE));
 205
 206         object_class->destroy = gnome_canvas_simplerect_destroy;
 207
 208         item_class->update = gnome_canvas_simplerect_update;
 209         item_class->draw = gnome_canvas_simplerect_draw;
 210         item_class->bounds = gnome_canvas_simplerect_bounds;
 211         item_class->point = gnome_canvas_simplerect_point;
 212         item_class->render = gnome_canvas_simplerect_render;
 213
 214 }
 215
 216 static void
 217 gnome_canvas_simplerect_init (GnomeCanvasSimpleRect *simplerect)
 218 {
 219         simplerect->x1 = 0.0;
 220         simplerect->y1 = 0.0;
 221         simplerect->x2 = 0.0;
 222         simplerect->y2 = 0.0;
 223         simplerect->fill = TRUE;
 224         simplerect->draw = TRUE;
 225         simplerect->full_draw_on_update = TRUE;
 226         simplerect->fill_color = 0;
 227         simplerect->outline_color = 0;
 228         simplerect->outline_pixels = 1;
 229         simplerect->outline_what = 0xf;
 230 }
 231
 232 static void
 233 gnome_canvas_simplerect_destroy (GtkObject *object)
 234 {
 235         GnomeCanvasSimpleRect *rect;
 236
 237         g_return_if_fail (object != NULL);
 238         g_return_if_fail (GNOME_IS_CANVAS_SIMPLERECT (object));
 239
 240         rect = GNOME_CANVAS_SIMPLERECT (object);
 241
 242         /* remember, destroy can be run multiple times! */
 243
 244         if (GTK_OBJECT_CLASS (parent_class)->destroy)
 245               (* GTK_OBJECT_CLASS (parent_class)->destroy) (object);
 246 }
 247
 248 static void
 249 gnome_canvas_simplerect_bounds (GnomeCanvasItem *item, double *x1, double *y1, double *x2, double *y2)
 250 {
 251         GnomeCanvasSimpleRect *simplerect = GNOME_CANVAS_SIMPLERECT (item);
 252
 253         *x1 = simplerect->x1;
 254         *y1 = simplerect->y1;
 255         *x2 = simplerect->x2 + 1;
 256         *y2 = simplerect->y2 + 1;
 257
 258 }
 259
 260 static void
 261 gnome_canvas_simplerect_reset_bounds (GnomeCanvasItem *item)
 262 {
 263         GnomeCanvasSimpleRect* simplerect;
 264         double x1, x2, y1, y2;
 265         double old_x1, old_x2, old_y1, old_y2;
 266         double a, b;
 267
 268         old_x1 = item->x1;
 269         old_y1 = item->y1;
 270         old_x2 = item->x2;
 271         old_y2 = item->y2;
 272
 273         gnome_canvas_simplerect_bounds (item, &x1, &y1, &x2, &y2);
 274         gnome_canvas_item_i2w (item, &x1, &y1);
 275         gnome_canvas_item_i2w (item, &x2, &y2);
 276
 277         item->x1 = x1;
 278         item->y1 = y1;
 279         item->x2 = x2;
 280         item->y2 = y2;
 281
 282         /* now compute bounding box in canvas units */
 283
 284         simplerect = GNOME_CANVAS_SIMPLERECT (item);
 285
 286         gnome_canvas_w2c (GNOME_CANVAS(item->canvas), x1, y1, &simplerect->bbox_ulx, &simplerect->bbox_uly);
 287         gnome_canvas_w2c (GNOME_CANVAS(item->canvas), x2, y2, &simplerect->bbox_lrx, &simplerect->bbox_lry);
 288
 289         /* now queue redraws for changed areas */
 290
 291         if (item->x1 != old_x1) {
 292
 293                 /* left edge changed. redraw the area that altered */
 294
 295                 a = MIN(item->x1, old_x1);
 296                 b = MAX(item->x1, old_x1);
 297                 gnome_canvas_request_redraw (item->canvas, a - 1, item->y1, b + 1, item->y2);
 298         }
 299
 300         if (item->x2 != old_x2) {
 301
 302                 /* right edge changed. redraw the area that altered */
 303
 304                 a = MIN(item->x2, old_x2);
 305                 b = MAX(item->x2, old_x2);
 306                 gnome_canvas_request_redraw (item->canvas, a - 1, item->y1, b + 1, item->y2);
 307         }
 308
 309         if (item->y1 != old_y1) {
 310
 311                 /* top edge changed. redraw the area that altered */
 312
 313                 a = MIN(item->y1, old_y1);
 314                 b = MAX(item->y1, old_y1);
 315                 gnome_canvas_request_redraw (item->canvas, item->x1, a - 1, item->x2, b + 1);
 316         }
 317
 318         if (item->y2 != old_y2) {
 319
 320                 /* lower edge changed. redraw the area that altered */
 321
 322                 a = MIN(item->y2, old_y2);
 323                 b = MAX(item->y2, old_y2);
 324                 gnome_canvas_request_redraw (item->canvas, item->x1, a - 1, item->x2, b + 1);
 325         }
 326 }
 327
 328 /*
 329  * CANVAS CALLBACKS
 330  */
 331
 332 static void
 333 gnome_canvas_simplerect_set_property (GObject      *object,
 334                                       guint         prop_id,
 335                                       const GValue *value,
 336                                       GParamSpec   *pspec)
 337
 338 {
 339         GnomeCanvasSimpleRect *simplerect;
 340         int update = FALSE;
 341         int bounds_changed = FALSE;
 342         g_return_if_fail (object != NULL);
 343         g_return_if_fail (GNOME_IS_CANVAS_SIMPLERECT (object));
 344
 345         simplerect = GNOME_CANVAS_SIMPLERECT (object);
 346
 347         switch (prop_id) {
 348         case PROP_X1:
 349                 if (simplerect->x1 != g_value_get_double (value)) {
 350                         simplerect->x1 = g_value_get_double (value);
 351                         bounds_changed = TRUE;
 352                 }
 353                 break;
 354
 355         case PROP_Y1:
 356                 if (simplerect->y1 != g_value_get_double (value)) {
 357                         simplerect->y1 = g_value_get_double (value);
 358                         bounds_changed = TRUE;
 359                 }
 360                 break;
 361
 362         case PROP_X2:
 363                 if (simplerect->x2 != g_value_get_double (value)) {
 364                         simplerect->x2 = g_value_get_double (value);
 365                         bounds_changed = TRUE;
 366                 }
 367                 break;
 368
 369         case PROP_Y2:
 370                 if (simplerect->y2 != g_value_get_double (value)) {
 371                         simplerect->y2 = g_value_get_double (value);
 372                         bounds_changed = TRUE;
 373                 }
 374                 break;
 375
 376         case PROP_DRAW:
 377                 if (simplerect->draw != g_value_get_boolean (value)) {
 378                         simplerect->draw = g_value_get_boolean (value);
 379                         update = TRUE;
 380                 }
 381                 break;
 382
 383
 384         case PROP_FILL:
 385                 if (simplerect->fill != g_value_get_boolean (value)) {
 386                         simplerect->fill = g_value_get_boolean (value);
 387                         update = TRUE;
 388                 }
 389                 break;
 390
 391         case PROP_FILL_COLOR_RGBA:
 392                 if (simplerect->fill_color != g_value_get_uint(value)) {
 393                         simplerect->fill_color = g_value_get_uint(value);
 394                         update = TRUE;
 395                 }
 396                 break;
 397
 398         case PROP_OUTLINE_COLOR_RGBA:
 399                 if (simplerect->outline_color != g_value_get_uint(value)) {
 400                         simplerect->outline_color = g_value_get_uint(value);
 401                         update = TRUE;
 402                 }
 403                 break;
 404
 405         case PROP_OUTLINE_PIXELS:
 406                 if (simplerect->outline_pixels != g_value_get_uint(value)) {
 407                         simplerect->outline_pixels = g_value_get_uint(value);
 408                         update = TRUE;
 409                 }
 410                 break;
 411
 412         case PROP_OUTLINE_WHAT:
 413                 if (simplerect->outline_what != g_value_get_uint(value)) {
 414                         simplerect->outline_what = g_value_get_uint(value);
 415                         update = TRUE;
 416                 }
 417                 break;
 418
 419         default:
 420                 break;
 421         }
 422
 423         simplerect->full_draw_on_update = update;
 424
 425         if (update || bounds_changed) {
 426                 gnome_canvas_item_request_update (GNOME_CANVAS_ITEM(object));
 427         }
 428 }
 429
 430 static void
 431 gnome_canvas_simplerect_get_property (GObject      *object,
 432                                       guint         prop_id,
 433                                       GValue       *value,
 434                                       GParamSpec   *pspec)
 435 {
 436         GnomeCanvasSimpleRect *rect = GNOME_CANVAS_SIMPLERECT (object);
 437
 438         g_return_if_fail (object != NULL);
 439         g_return_if_fail (GNOME_IS_CANVAS_SIMPLERECT (object));
 440
 441         switch (prop_id) {
 442         case PROP_X1:
 443                 g_value_set_double (value, rect->x1);
 444                 break;
 445         case PROP_X2:
 446                 g_value_set_double (value, rect->x2);
 447                 break;
 448         case PROP_Y1:
 449                 g_value_set_double (value, rect->y1);
 450                 break;
 451         case PROP_Y2:
 452                 g_value_set_double (value, rect->y2);
 453                 break;
 454         case PROP_OUTLINE_WHAT:
 455                 g_value_set_uint (value, rect->outline_what);
 456                 break;
 457         case PROP_FILL:
 458                 g_value_set_boolean (value, rect->fill);
 459                 break;
 460         case PROP_OUTLINE_PIXELS:
 461                 g_value_set_uint (value, rect->outline_pixels);
 462                 break;
 463         case PROP_FILL_COLOR_RGBA:
 464                 g_value_set_uint (value, rect->fill_color);
 465                 break;
 466         case PROP_OUTLINE_COLOR_RGBA:
 467                 g_value_set_uint (value, rect->outline_color);
 468                 break;
 469         case PROP_DRAW:
 470                 g_value_set_boolean (value, rect->draw);
 471                 break;
 472
 473         default:
 474                 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
 475                 break;
 476         }
 477 }
 478
 479
 480 static void
 481 gnome_canvas_simplerect_update (GnomeCanvasItem *item, double *affine, ArtSVP *clip_path, int flags)
 482 {
 483         GnomeCanvasSimpleRect *simplerect;
 484         unsigned char foo;
 485
 486         simplerect = GNOME_CANVAS_SIMPLERECT (item);
 487
 488         if (parent_class->update)
 489                 (* parent_class->update) (item, affine, clip_path, flags);
 490
 491         gnome_canvas_simplerect_reset_bounds (item);
 492
 493         if (simplerect->full_draw_on_update) {
 494                 gnome_canvas_request_redraw (item->canvas,
 495                                            simplerect->bbox_ulx,
 496                                            simplerect->bbox_uly,
 497                                            simplerect->bbox_lrx+1,
 498                                            simplerect->bbox_lry+1);
 499                 simplerect->full_draw_on_update = FALSE;
 500         }
 501
 502         UINT_TO_RGBA (simplerect->fill_color, &simplerect->fill_r, &simplerect->fill_g, &simplerect->fill_b, &simplerect->fill_a);
 503         UINT_TO_RGBA (simplerect->outline_color, &simplerect->outline_r, &simplerect->outline_g, &simplerect->outline_b, &foo);
 504 }
 505
 506 // this can be useful for debugging/understanding how the canvas redraws
 507 // stuff.
 508
 509 #undef HARLEQUIN_DEBUGGING
 510
 511 #undef SIMPLERECT_FAST_RENDERER
 512 #ifdef SIMPLERECT_FAST_RENDERER
 513
 514 static void
 515 gnome_canvas_simplerect_render (GnomeCanvasItem *item,
 516                               GnomeCanvasBuf *buf)
 517 {
 518         GnomeCanvasSimpleRect *simplerect;
 519         int end, begin;
 520         int ey, sy;
 521         unsigned int i;
 522         ArtIRect intersection;
 523         ArtIRect self;
 524
 525         simplerect = GNOME_CANVAS_SIMPLERECT (item);
 526
 527         if (parent_class->render) {
 528                 (*parent_class->render) (item, buf);
 529         }
 530
 531         if (buf->is_bg) {
 532
 533 #ifdef HARLEQUIN_DEBUGGING
 534                 gint randr, randg, randb;
 535                 randr = random() % 255;
 536                 randg = random() % 255;
 537                 randb = random() % 255;
 538                 PAINT_BOX(buf, randr, randg, randb, 255, buf->rect.x0, buf->rect.y0, buf->rect.x1, buf->rect.y1);
 539 #endif
 540                 gnome_canvas_buf_ensure_buf (buf);
 541                 buf->is_bg = FALSE;
 542         }
 543
 544         if (!simplerect->draw) {
 545                 return;
 546         }
 547
 548         self.x0 = simplerect->bbox_ulx;
 549         self.y0 = simplerect->bbox_uly;
 550         self.x1 = simplerect->bbox_lrx;
 551         self.y1 = simplerect->bbox_lry;
 552
 553         art_irect_intersect (&intersection, &self, &buf->rect);
 554
 555         begin = MAX(simplerect->bbox_ulx, buf->rect.x0);
 556         end = MIN((simplerect->bbox_lrx-1), buf->rect.x1);
 557
 558         sy = simplerect->bbox_uly;
 559         ey = simplerect->bbox_lry-1;
 560
 561         if (simplerect->fill) {
 562
 563                 // this can be useful for debugging/understanding how the canvas redraws
 564                 // stuff.
 565
 566 #ifdef HARLEQUIN_DEBUGGING
 567                 gint randr, randg, randb;
 568                 randr = random() % 255;
 569                 randg = random() % 255;
 570                 randb = random() % 255;
 571                 PAINT_BOX(buf, randr, randg, randb, simplerect->fill_a, begin, sy, end, ey);
 572 #else
 573                 PAINT_BOX (buf, simplerect->fill_r, simplerect->fill_g, simplerect->fill_b, simplerect->fill_a,
 574                            intersection.x0, intersection.y0,
 575                            intersection.x1, intersection.y1);
 576 #endif
 577
 578         }
 579
 580         for (i = 0; i < simplerect->outline_pixels; ++i) {
 581
 582                 if (simplerect->outline_what & 0x1) {
 583                         if (begin == simplerect->bbox_ulx) {
 584                                 PAINT_VERT(buf, simplerect->outline_r, simplerect->outline_g, simplerect->outline_b, begin + i, sy, ey);
 585                         }
 586                 }
 587
 588                 if (simplerect->outline_what & 0x2) {
 589                         if (end == (simplerect->bbox_lrx - 1)) {
 590                                 PAINT_VERT(buf, simplerect->outline_r, simplerect->outline_g, simplerect->outline_b, end - i, sy, ey + 1);
 591                         }
 592                 }
 593
 594                 if (simplerect->outline_what & 0x4) {
 595                         PAINT_HORIZ(buf, simplerect->outline_r, simplerect->outline_g, simplerect->outline_b, begin, end, sy+i);
 596                 }
 597
 598                 if (simplerect->outline_what & 0x8) {
 599                         PAINT_HORIZ(buf, simplerect->outline_r, simplerect->outline_g, simplerect->outline_b, begin, end + 1, ey-i);
 600                 }
 601         }
 602 }
 603
 604 #else /* SIMPLERECT_FAST_RENDERER */
 605
 606 static void
 607 gnome_canvas_simplerect_render (GnomeCanvasItem *item,
 608                               GnomeCanvasBuf *buf)
 609 {
 610         GnomeCanvasSimpleRect *simplerect;
 611         int end, begin;
 612         int ey, sy;
 613         unsigned int i;
 614
 615         simplerect = GNOME_CANVAS_SIMPLERECT (item);
 616
 617         if (parent_class->render) {
 618                 (*parent_class->render) (item, buf);
 619         }
 620
 621         if (buf->is_bg) {
 622
 623 #ifdef HARLEQUIN_DEBUGGING
 624                 gint randr, randg, randb;
 625                 randr = random() % 255;
 626                 randg = random() % 255;
 627                 randb = random() % 255;
 628                 PAINT_BOX(buf, randr, randg, randb, 255, buf->rect.x0, buf->rect.y0, buf->rect.x1, buf->rect.y1);
 629 #endif
 630                 gnome_canvas_buf_ensure_buf (buf);
 631                 buf->is_bg = FALSE;
 632         }
 633
 634         if (!simplerect->draw) {
 635                 return;
 636         }
 637
 638         begin = MAX(simplerect->bbox_ulx,buf->rect.x0);
 639         end = MIN((simplerect->bbox_lrx-1),buf->rect.x1);
 640
 641         sy = simplerect->bbox_uly;
 642         ey = simplerect->bbox_lry-1;
 643
 644         if (simplerect->fill) {
 645
 646 #ifdef HARLEQUIN_DEBUGGING
 647                 gint randr, randg, randb;
 648                 randr = random() % 255;
 649                 randg = random() % 255;
 650                 randb = random() % 255;
 651                 PAINT_BOX(buf, randr, randg, randb, simplerect->fill_a, begin, sy, end, ey);
 652 #else
 653                 PAINT_BOX(buf, simplerect->fill_r, simplerect->fill_g, simplerect->fill_b, simplerect->fill_a, begin, sy, end, ey);
 654 #endif
 655         }
 656
 657         for (i = 0; i < simplerect->outline_pixels; ++i) {
 658
 659                 if (simplerect->outline_what & 0x1) {
 660                         if (begin == simplerect->bbox_ulx) {
 661                                 PAINT_VERT(buf, simplerect->outline_r, simplerect->outline_g, simplerect->outline_b, begin + i, sy, ey);
 662                         }
 663                 }
 664
 665                 if (simplerect->outline_what & 0x2) {
 666                         if (end == (simplerect->bbox_lrx - 1)) {
 667                                 PAINT_VERT(buf, simplerect->outline_r, simplerect->outline_g, simplerect->outline_b, end - i, sy, ey + 1);
 668                         }
 669                 }
 670
 671                 if (simplerect->outline_what & 0x4) {
 672                         PAINT_HORIZ(buf, simplerect->outline_r, simplerect->outline_g, simplerect->outline_b, begin, end, sy+i);
 673                 }
 674
 675                 if (simplerect->outline_what & 0x8) {
 676                         PAINT_HORIZ(buf, simplerect->outline_r, simplerect->outline_g, simplerect->outline_b, begin, end + 1, ey-i);
 677                 }
 678         }
 679 }
 680 #endif /* SIMPLERECT_FAST_RENDERER */
 681
 682 static void
 683 gnome_canvas_simplerect_draw (GnomeCanvasItem *item,
 684                             GdkDrawable *drawable,
 685                             int x, int y,
 686                             int width, int height)
 687 {
 688         fprintf (stderr, "please don't use the CanvasSimpleRect item in a non-aa Canvas\n");
 689         abort ();
 690 }
 691
 692 static double
 693 gnome_canvas_simplerect_point (GnomeCanvasItem *item, double x, double y, int cx, int cy, GnomeCanvasItem **actual_item)
 694 {
 695         GnomeCanvasSimpleRect *simplerect;
 696         double x1, y1, x2, y2;
 697         double dx, dy;
 698
 699         simplerect = GNOME_CANVAS_SIMPLERECT (item);
 700
 701         *actual_item = item;
 702
 703         /* Find the bounds for the rectangle plus its outline width */
 704
 705         gnome_canvas_simplerect_bounds (item, &x1, &y1, &x2, &y2);
 706
 707         /* Is point inside rectangle */
 708
 709         if ((x >= x1) && (y >= y1) && (x <= x2) && (y <= y2)) {
 710                 return 0.0;
 711         }
 712
 713         /* Point is outside rectangle */
 714
 715         if (x < x1)
 716                 dx = x1 - x;
 717         else if (x > x2)
 718                 dx = x - x2;
 719         else
 720                 dx = 0.0;
 721
 722         if (y < y1)
 723                 dy = y1 - y;
 724         else if (y > y2)
 725                 dy = y - y2;
 726         else
 727                 dy = 0.0;
 728
 729         return sqrt (dx * dx + dy * dy);
 730 }