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         // GTK2FIX
 232         // GNOME_CANVAS_ITEM(simplerect)->object.flags |= GNOME_CANVAS_ITEM_NO_AUTO_REDRAW;
 233 }
 234
 235 static void
 236 gnome_canvas_simplerect_destroy (GtkObject *object)
 237 {
 238         GnomeCanvasSimpleRect *rect;
 239
 240         g_return_if_fail (object != NULL);
 241         g_return_if_fail (GNOME_IS_CANVAS_SIMPLERECT (object));
 242
 243         rect = GNOME_CANVAS_SIMPLERECT (object);
 244
 245         /* remember, destroy can be run multiple times! */
 246
 247         if (GTK_OBJECT_CLASS (parent_class)->destroy)
 248               (* GTK_OBJECT_CLASS (parent_class)->destroy) (object);
 249 }
 250
 251 static void
 252 gnome_canvas_simplerect_bounds (GnomeCanvasItem *item, double *x1, double *y1, double *x2, double *y2)
 253 {
 254         GnomeCanvasSimpleRect *simplerect = GNOME_CANVAS_SIMPLERECT (item);
 255
 256         *x1 = simplerect->x1;
 257         *y1 = simplerect->y1;
 258         *x2 = simplerect->x2 + 1;
 259         *y2 = simplerect->y2 + 1;
 260
 261 }
 262
 263 static void
 264 gnome_canvas_simplerect_reset_bounds (GnomeCanvasItem *item)
 265 {
 266         GnomeCanvasSimpleRect* simplerect;
 267         double x1, x2, y1, y2;
 268         double old_x1, old_x2, old_y1, old_y2;
 269         double a, b;
 270
 271         old_x1 = item->x1;
 272         old_y1 = item->y1;
 273         old_x2 = item->x2;
 274         old_y2 = item->y2;
 275
 276         gnome_canvas_simplerect_bounds (item, &x1, &y1, &x2, &y2);
 277         gnome_canvas_item_i2w (item, &x1, &y1);
 278         gnome_canvas_item_i2w (item, &x2, &y2);
 279
 280         item->x1 = x1;
 281         item->y1 = y1;
 282         item->x2 = x2;
 283         item->y2 = y2;
 284
 285         /* now compute bounding box in canvas units */
 286
 287         simplerect = GNOME_CANVAS_SIMPLERECT (item);
 288
 289         gnome_canvas_w2c (GNOME_CANVAS(item->canvas), x1, y1, &simplerect->bbox_ulx, &simplerect->bbox_uly);
 290         gnome_canvas_w2c (GNOME_CANVAS(item->canvas), x2, y2, &simplerect->bbox_lrx, &simplerect->bbox_lry);
 291
 292         /* now queue redraws for changed areas */
 293
 294         if (item->x1 != old_x1) {
 295
 296                 /* left edge changed. redraw the area that altered */
 297
 298                 a = MIN(item->x1, old_x1);
 299                 b = MAX(item->x1, old_x1);
 300                 gnome_canvas_request_redraw (item->canvas, a - 1, item->y1, b + 1, item->y2);
 301         }
 302
 303         if (item->x2 != old_x2) {
 304
 305                 /* right edge changed. redraw the area that altered */
 306
 307                 a = MIN(item->x2, old_x2);
 308                 b = MAX(item->x2, old_x2);
 309                 gnome_canvas_request_redraw (item->canvas, a - 1, item->y1, b + 1, item->y2);
 310         }
 311
 312         if (item->y1 != old_y1) {
 313
 314                 /* top edge changed. redraw the area that altered */
 315
 316                 a = MIN(item->y1, old_y1);
 317                 b = MAX(item->y1, old_y1);
 318                 gnome_canvas_request_redraw (item->canvas, item->x1, a - 1, item->x2, b + 1);
 319         }
 320
 321         if (item->y2 != old_y2) {
 322
 323                 /* lower edge changed. redraw the area that altered */
 324
 325                 a = MIN(item->y2, old_y2);
 326                 b = MAX(item->y2, old_y2);
 327                 gnome_canvas_request_redraw (item->canvas, item->x1, a - 1, item->x2, b + 1);
 328         }
 329 }
 330
 331 /*
 332  * CANVAS CALLBACKS
 333  */
 334
 335 static void
 336 gnome_canvas_simplerect_set_property (GObject      *object,
 337                                       guint         prop_id,
 338                                       const GValue *value,
 339                                       GParamSpec   *pspec)
 340
 341 {
 342         GnomeCanvasSimpleRect *simplerect;
 343         int update = FALSE;
 344         int bounds_changed = FALSE;
 345         g_return_if_fail (object != NULL);
 346         g_return_if_fail (GNOME_IS_CANVAS_SIMPLERECT (object));
 347
 348         simplerect = GNOME_CANVAS_SIMPLERECT (object);
 349
 350         switch (prop_id) {
 351         case PROP_X1:
 352                 if (simplerect->x1 != g_value_get_double (value)) {
 353                         simplerect->x1 = g_value_get_double (value);
 354                         bounds_changed = TRUE;
 355                 }
 356                 break;
 357
 358         case PROP_Y1:
 359                 if (simplerect->y1 != g_value_get_double (value)) {
 360                         simplerect->y1 = g_value_get_double (value);
 361                         bounds_changed = TRUE;
 362                 }
 363                 break;
 364
 365         case PROP_X2:
 366                 if (simplerect->x2 != g_value_get_double (value)) {
 367                         simplerect->x2 = g_value_get_double (value);
 368                         bounds_changed = TRUE;
 369                 }
 370                 break;
 371
 372         case PROP_Y2:
 373                 if (simplerect->y2 != g_value_get_double (value)) {
 374                         simplerect->y2 = g_value_get_double (value);
 375                         bounds_changed = TRUE;
 376                 }
 377                 break;
 378
 379         case PROP_DRAW:
 380                 if (simplerect->draw != g_value_get_boolean (value)) {
 381                         simplerect->draw = g_value_get_boolean (value);
 382                         update = TRUE;
 383                 }
 384                 break;
 385
 386
 387         case PROP_FILL:
 388                 if (simplerect->fill != g_value_get_boolean (value)) {
 389                         simplerect->fill = g_value_get_boolean (value);
 390                         update = TRUE;
 391                 }
 392                 break;
 393
 394         case PROP_FILL_COLOR_RGBA:
 395                 if (simplerect->fill_color != g_value_get_uint(value)) {
 396                         simplerect->fill_color = g_value_get_uint(value);
 397                         update = TRUE;
 398                 }
 399                 break;
 400
 401         case PROP_OUTLINE_COLOR_RGBA:
 402                 if (simplerect->outline_color != g_value_get_uint(value)) {
 403                         simplerect->outline_color = g_value_get_uint(value);
 404                         update = TRUE;
 405                 }
 406                 break;
 407
 408         case PROP_OUTLINE_PIXELS:
 409                 if (simplerect->outline_pixels != g_value_get_uint(value)) {
 410                         simplerect->outline_pixels = g_value_get_uint(value);
 411                         update = TRUE;
 412                 }
 413                 break;
 414
 415         case PROP_OUTLINE_WHAT:
 416                 if (simplerect->outline_what != g_value_get_uint(value)) {
 417                         simplerect->outline_what = g_value_get_uint(value);
 418                         update = TRUE;
 419                 }
 420                 break;
 421
 422         default:
 423                 break;
 424         }
 425
 426         simplerect->full_draw_on_update = update;
 427
 428         if (update || bounds_changed) {
 429                 gnome_canvas_item_request_update (GNOME_CANVAS_ITEM(object));
 430         }
 431 }
 432
 433 static void
 434 gnome_canvas_simplerect_get_property (GObject      *object,
 435                                       guint         prop_id,
 436                                       GValue       *value,
 437                                       GParamSpec   *pspec)
 438 {
 439         GnomeCanvasSimpleRect *rect = GNOME_CANVAS_SIMPLERECT (object);
 440
 441         g_return_if_fail (object != NULL);
 442         g_return_if_fail (GNOME_IS_CANVAS_SIMPLERECT (object));
 443
 444         switch (prop_id) {
 445         case PROP_X1:
 446                 g_value_set_double (value, rect->x1);
 447                 break;
 448         case PROP_X2:
 449                 g_value_set_double (value, rect->x2);
 450                 break;
 451         case PROP_Y1:
 452                 g_value_set_double (value, rect->y1);
 453                 break;
 454         case PROP_Y2:
 455                 g_value_set_double (value, rect->y2);
 456                 break;
 457         case PROP_OUTLINE_WHAT:
 458                 g_value_set_uint (value, rect->outline_what);
 459                 break;
 460         case PROP_FILL:
 461                 g_value_set_boolean (value, rect->fill);
 462                 break;
 463         case PROP_OUTLINE_PIXELS:
 464                 g_value_set_uint (value, rect->outline_pixels);
 465                 break;
 466         case PROP_FILL_COLOR_RGBA:
 467                 g_value_set_uint (value, rect->fill_color);
 468                 break;
 469         case PROP_OUTLINE_COLOR_RGBA:
 470                 g_value_set_uint (value, rect->outline_color);
 471                 break;
 472         case PROP_DRAW:
 473                 g_value_set_boolean (value, rect->draw);
 474                 break;
 475
 476         default:
 477                 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
 478                 break;
 479         }
 480 }
 481
 482
 483 static void
 484 gnome_canvas_simplerect_update (GnomeCanvasItem *item, double *affine, ArtSVP *clip_path, int flags)
 485 {
 486         GnomeCanvasSimpleRect *simplerect;
 487         unsigned char foo;
 488
 489         simplerect = GNOME_CANVAS_SIMPLERECT (item);
 490
 491         if (parent_class->update)
 492                 (* parent_class->update) (item, affine, clip_path, flags);
 493
 494         gnome_canvas_simplerect_reset_bounds (item);
 495
 496         if (simplerect->full_draw_on_update) {
 497                 gnome_canvas_request_redraw (item->canvas,
 498                                            simplerect->bbox_ulx,
 499                                            simplerect->bbox_uly,
 500                                            simplerect->bbox_lrx+1,
 501                                            simplerect->bbox_lry+1);
 502                 simplerect->full_draw_on_update = FALSE;
 503         }
 504
 505         UINT_TO_RGBA (simplerect->fill_color, &simplerect->fill_r, &simplerect->fill_g, &simplerect->fill_b, &simplerect->fill_a);
 506         UINT_TO_RGBA (simplerect->outline_color, &simplerect->outline_r, &simplerect->outline_g, &simplerect->outline_b, &foo);
 507 }
 508
 509 #define SIMPLERECT_FAST_RENDERER
 510 #ifdef SIMPLERECT_FAST_RENDERER
 511
 512 static void
 513 gnome_canvas_simplerect_render (GnomeCanvasItem *item,
 514                               GnomeCanvasBuf *buf)
 515 {
 516         GnomeCanvasSimpleRect *simplerect;
 517         int end, begin;
 518         int ey, sy;
 519         unsigned int i;
 520         ArtIRect intersection;
 521         ArtIRect self;
 522
 523         simplerect = GNOME_CANVAS_SIMPLERECT (item);
 524
 525         if (parent_class->render) {
 526                 (*parent_class->render) (item, buf);
 527         }
 528
 529         if (buf->is_bg) {
 530
 531                 // this can be useful for debugging/understanding how the canvas redraws
 532                 // stuff.
 533
 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
 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                 // gint randr, randg, randb;
 567                 // randr = random() % 255;
 568                 // randg = random() % 255;
 569                 // randb = random() % 255;
 570                 // PAINT_BOX(buf, randr, randg, randb, simplerect->fill_a, begin, sy, end, ey);
 571
 572                 FAST_PAINT_BOX (buf, simplerect->fill_r, simplerect->fill_g, simplerect->fill_b, simplerect->fill_a,
 573                                 intersection.x0, intersection.y0,
 574                                 intersection.x1, intersection.y1);
 575
 576         }
 577
 578         for (i = 0; i < simplerect->outline_pixels; ++i) {
 579
 580                 if (simplerect->outline_what & 0x1) {
 581                         if (begin == simplerect->bbox_ulx) {
 582                                 PAINT_VERT(buf, simplerect->outline_r, simplerect->outline_g, simplerect->outline_b, begin + i, sy, ey);
 583                         }
 584                 }
 585
 586                 if (simplerect->outline_what & 0x2) {
 587                         if (end == (simplerect->bbox_lrx - 1)) {
 588                                 PAINT_VERT(buf, simplerect->outline_r, simplerect->outline_g, simplerect->outline_b, end - i, sy, ey + 1);
 589                         }
 590                 }
 591
 592                 if (simplerect->outline_what & 0x4) {
 593                         PAINT_HORIZ(buf, simplerect->outline_r, simplerect->outline_g, simplerect->outline_b, begin, end, sy+i);
 594                 }
 595
 596                 if (simplerect->outline_what & 0x8) {
 597                         PAINT_HORIZ(buf, simplerect->outline_r, simplerect->outline_g, simplerect->outline_b, begin, end + 1, ey-i);
 598                 }
 599         }
 600 }
 601
 602 #else /* SIMPLERECT_FAST_RENDERER */
 603
 604 static void
 605 gnome_canvas_simplerect_render (GnomeCanvasItem *item,
 606                               GnomeCanvasBuf *buf)
 607 {
 608         GnomeCanvasSimpleRect *simplerect;
 609         int end, begin;
 610         int ey, sy;
 611         unsigned int i;
 612
 613         simplerect = GNOME_CANVAS_SIMPLERECT (item);
 614
 615         if (parent_class->render) {
 616                 (*parent_class->render) (item, buf);
 617         }
 618
 619         if (buf->is_bg) {
 620
 621                 // this can be useful for debugging/understanding how the canvas redraws
 622                 // stuff.
 623
 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
 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                 // this can be useful for debugging/understanding how the canvas redraws
 647                 // stuff.
 648
 649                 // gint randr, randg, randb;
 650                 // randr = random() % 255;
 651                 // randg = random() % 255;
 652                 // randb = random() % 255;
 653                 // PAINT_BOX(buf, randr, randg, randb, simplerect->fill_a, begin, sy, end, ey);
 654
 655                 PAINT_BOX(buf, simplerect->fill_r, simplerect->fill_g, simplerect->fill_b, simplerect->fill_a, begin, sy, end, ey);
 656         }
 657
 658         for (i = 0; i < simplerect->outline_pixels; ++i) {
 659
 660                 if (simplerect->outline_what & 0x1) {
 661                         if (begin == simplerect->bbox_ulx) {
 662                                 PAINT_VERT(buf, simplerect->outline_r, simplerect->outline_g, simplerect->outline_b, begin + i, sy, ey);
 663                         }
 664                 }
 665
 666                 if (simplerect->outline_what & 0x2) {
 667                         if (end == (simplerect->bbox_lrx - 1)) {
 668                                 PAINT_VERT(buf, simplerect->outline_r, simplerect->outline_g, simplerect->outline_b, end - i, sy, ey + 1);
 669                         }
 670                 }
 671
 672                 if (simplerect->outline_what & 0x4) {
 673                         PAINT_HORIZ(buf, simplerect->outline_r, simplerect->outline_g, simplerect->outline_b, begin, end, sy+i);
 674                 }
 675
 676                 if (simplerect->outline_what & 0x8) {
 677                         PAINT_HORIZ(buf, simplerect->outline_r, simplerect->outline_g, simplerect->outline_b, begin, end + 1, ey-i);
 678                 }
 679         }
 680 }
 681 #endif /* SIMPLERECT_FAST_RENDERER */
 682
 683 static void
 684 gnome_canvas_simplerect_draw (GnomeCanvasItem *item,
 685                             GdkDrawable *drawable,
 686                             int x, int y,
 687                             int width, int height)
 688 {
 689         fprintf (stderr, "please don't use the CanvasSimpleRect item in a non-aa Canvas\n");
 690         abort ();
 691 }
 692
 693 static double
 694 gnome_canvas_simplerect_point (GnomeCanvasItem *item, double x, double y, int cx, int cy, GnomeCanvasItem **actual_item)
 695 {
 696         GnomeCanvasSimpleRect *simplerect;
 697         double x1, y1, x2, y2;
 698         double dx, dy;
 699
 700         simplerect = GNOME_CANVAS_SIMPLERECT (item);
 701
 702         *actual_item = item;
 703
 704         /* Find the bounds for the rectangle plus its outline width */
 705
 706         gnome_canvas_simplerect_bounds (item, &x1, &y1, &x2, &y2);
 707
 708         /* Is point inside rectangle */
 709
 710         if ((x >= x1) && (y >= y1) && (x <= x2) && (y <= y2)) {
 711                 return 0.0;
 712         }
 713
 714         /* Point is outside rectangle */
 715
 716         if (x < x1)
 717                 dx = x1 - x;
 718         else if (x > x2)
 719                 dx = x - x2;
 720         else
 721                 dx = 0.0;
 722
 723         if (y < y1)
 724                 dy = y1 - y;
 725         else if (y > y2)
 726                 dy = y - y2;
 727         else
 728                 dy = 0.0;
 729
 730         return sqrt (dx * dx + dy * dy);
 731 }