gtk2_ardour/canvas-simplerect.c

   1 #include <stdio.h>
   2 #include <math.h>
   3 #include <cairo.h>
   4 #include <libgnomecanvas/libgnomecanvas.h>
   5
   6 #include "canvas-simplerect.h"
   7 #include "rgb_macros.h"
   8 #include "gettext.h"
   9 #define _(Text)  dgettext (PACKAGE,Text)
  10
  11 enum {
  12         PROP_0,
  13         PROP_X1,
  14         PROP_Y1,
  15         PROP_X2,
  16         PROP_Y2,
  17         PROP_OUTLINE_PIXELS,
  18         PROP_OUTLINE_WHAT,
  19         PROP_FILL,
  20         PROP_FILL_COLOR_RGBA,
  21         PROP_OUTLINE_COLOR_RGBA,
  22         PROP_DRAW
  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         g_return_if_fail (object != NULL);
 236         g_return_if_fail (GNOME_IS_CANVAS_SIMPLERECT (object));
 237
 238         /* remember, destroy can be run multiple times! */
 239
 240         if (GTK_OBJECT_CLASS (parent_class)->destroy)
 241               (* GTK_OBJECT_CLASS (parent_class)->destroy) (object);
 242 }
 243
 244 static void
 245 gnome_canvas_simplerect_bounds (GnomeCanvasItem *item, double *x1, double *y1, double *x2, double *y2)
 246 {
 247         GnomeCanvasSimpleRect *simplerect = GNOME_CANVAS_SIMPLERECT (item);
 248
 249         *x1 = simplerect->x1;
 250         *y1 = simplerect->y1;
 251         *x2 = simplerect->x2 + 1;
 252         *y2 = simplerect->y2 + 1;
 253 }
 254
 255
 256 static void
 257 gnome_canvas_simplerect_reset_bounds (GnomeCanvasItem *item)
 258 {
 259         GnomeCanvasSimpleRect* simplerect;
 260         double x1, x2, y1, y2;
 261         double old_x1, old_x2, old_y1, old_y2;
 262         ArtDRect unionrect, old, new;
 263
 264         old_x1 = item->x1;
 265         old_y1 = item->y1;
 266         old_x2 = item->x2;
 267         old_y2 = item->y2;
 268
 269         gnome_canvas_simplerect_bounds (item, &x1, &y1, &x2, &y2);
 270         gnome_canvas_item_i2w (item, &x1, &y1);
 271         gnome_canvas_item_i2w (item, &x2, &y2);
 272
 273         item->x1 = x1;
 274         item->y1 = y1;
 275         item->x2 = x2;
 276         item->y2 = y2;
 277
 278         /* now compute bounding box in canvas units */
 279
 280         simplerect = GNOME_CANVAS_SIMPLERECT (item);
 281
 282         gnome_canvas_w2c (GNOME_CANVAS(item->canvas), x1, y1, &simplerect->bbox_ulx, &simplerect->bbox_uly);
 283         gnome_canvas_w2c (GNOME_CANVAS(item->canvas), x2, y2, &simplerect->bbox_lrx, &simplerect->bbox_lry);
 284
 285         /* now queue redraws for changed areas */
 286
 287         if (item->x1 == old_x1 && item->x2 == old_x2) {
 288
 289                 /* no change in x-axis position */
 290
 291                 if (item->y1 == old_y1) {
 292                         /* top didn't change, so just draw bottom */
 293
 294                         double start_y = MIN (item->y2, old_y2);
 295                         double end_y = MAX (item->y2, old_y2);
 296
 297                         gnome_canvas_request_redraw (item->canvas, item->x1, start_y - 0.5, item->x2, end_y + 1.5);
 298                         return;
 299
 300                 } else if (item->y2 == old_y2) {
 301
 302                         /* bottom didn't change, just draw top */
 303
 304                         double start_y = MIN (item->y1, old_y1);
 305                         double end_y = MAX (item->y1, old_y1);
 306
 307                         gnome_canvas_request_redraw (item->canvas, item->x1, start_y - 0.5, item->x2, end_y + 1.5);
 308                         return;
 309
 310                 }
 311
 312         } else if (item->y1 == old_y1 && item->y2 == old_y2) {
 313
 314                 /* no change in y-axis position */
 315
 316                 if (item->x1 == old_x1) {
 317                         /* start didn't change, so just draw at the end */
 318
 319                         double start_x = MIN (item->x2, old_x2);
 320                         double end_x = MAX (item->x2, old_x2);
 321
 322                         gnome_canvas_request_redraw (item->canvas, start_x - 0.5, item->y1, end_x + 1.5, item->y2 + 0.5);
 323                         return;
 324
 325                 } else if (item->x2 == old_x2) {
 326
 327                         /* end didn't change, so just draw at the start */
 328
 329                         double start_x = MIN (item->x1, old_x1);
 330                         double end_x = MAX (item->x1, old_x1);
 331
 332                         gnome_canvas_request_redraw (item->canvas, start_x - 0.5, item->y1, end_x + 1.5, item->y2 + 0.5);
 333                         return;
 334
 335                 }
 336         }
 337
 338         new.x0 = x1;
 339         new.y0 = y1;
 340         new.x1 = x2;
 341         new.y1 = y2;
 342
 343         old.x0 = old_x1;
 344         old.y0 = old_y1;
 345         old.x1 = old_x2;
 346         old.y1 = old_y2;
 347
 348         art_drect_union (&unionrect, &old, &new);
 349         gnome_canvas_request_redraw (item->canvas,
 350                                      unionrect.x0 - 0.5,
 351                                      unionrect.y0 - 0.5,
 352                                      unionrect.x1 + 1.5,
 353                                      unionrect.y1 + 1.5);
 354 }
 355
 356 /*
 357  * CANVAS CALLBACKS
 358  */
 359
 360 static void
 361 gnome_canvas_simplerect_set_property (GObject      *object,
 362                                       guint         prop_id,
 363                                       const GValue *value,
 364                                       GParamSpec   *pspec)
 365
 366 {
 367         (void) pspec;
 368
 369         GnomeCanvasSimpleRect *simplerect;
 370         int update = FALSE;
 371         int bounds_changed = FALSE;
 372         g_return_if_fail (object != NULL);
 373         g_return_if_fail (GNOME_IS_CANVAS_SIMPLERECT (object));
 374
 375         simplerect = GNOME_CANVAS_SIMPLERECT (object);
 376
 377         switch (prop_id) {
 378         case PROP_X1:
 379                 if (simplerect->x1 != g_value_get_double (value)) {
 380                         simplerect->x1 = g_value_get_double (value);
 381                         bounds_changed = TRUE;
 382                 }
 383                 break;
 384
 385         case PROP_Y1:
 386                 if (simplerect->y1 != g_value_get_double (value)) {
 387                         simplerect->y1 = g_value_get_double (value);
 388                         bounds_changed = TRUE;
 389                 }
 390                 break;
 391
 392         case PROP_X2:
 393                 if (simplerect->x2 != g_value_get_double (value)) {
 394                         simplerect->x2 = g_value_get_double (value);
 395                         bounds_changed = TRUE;
 396                 }
 397                 break;
 398
 399         case PROP_Y2:
 400                 if (simplerect->y2 != g_value_get_double (value)) {
 401                         simplerect->y2 = g_value_get_double (value);
 402                         bounds_changed = TRUE;
 403                 }
 404                 break;
 405
 406         case PROP_DRAW:
 407                 if (simplerect->draw != g_value_get_boolean (value)) {
 408                         simplerect->draw = g_value_get_boolean (value);
 409                         update = TRUE;
 410                 }
 411                 break;
 412
 413
 414         case PROP_FILL:
 415                 if (simplerect->fill != g_value_get_boolean (value)) {
 416                         simplerect->fill = g_value_get_boolean (value);
 417                         update = TRUE;
 418                 }
 419                 break;
 420
 421         case PROP_FILL_COLOR_RGBA:
 422                 if (simplerect->fill_color != g_value_get_uint(value)) {
 423                         simplerect->fill_color = g_value_get_uint(value);
 424                         update = TRUE;
 425                 }
 426                 break;
 427
 428         case PROP_OUTLINE_COLOR_RGBA:
 429                 if (simplerect->outline_color != g_value_get_uint(value)) {
 430                         simplerect->outline_color = g_value_get_uint(value);
 431                         update = TRUE;
 432                 }
 433                 break;
 434
 435         case PROP_OUTLINE_PIXELS:
 436                 if (simplerect->outline_pixels != g_value_get_uint(value)) {
 437                         simplerect->outline_pixels = g_value_get_uint(value);
 438                         update = TRUE;
 439                 }
 440                 break;
 441
 442         case PROP_OUTLINE_WHAT:
 443                 if (simplerect->outline_what != g_value_get_uint(value)) {
 444                         simplerect->outline_what = g_value_get_uint(value);
 445                         update = TRUE;
 446                 }
 447                 break;
 448
 449         default:
 450                 break;
 451         }
 452
 453         if (!simplerect->full_draw_on_update) {
 454                 /* XXX: not sure about this;
 455                  *
 456                  * I changed the next line to be conditional, rather than always
 457                  * being executed.  Without the condition, the following bug occurs:
 458                  *
 459                  * caller sets a property (e.g. outline colour); this sets update = TRUE and hence full_draw_on_update = TRUE
 460                  * update is requested (and it is intended, I suppose, that during this update, full_draw_on_update is noted)
 461                  * ... update does not occur before ...
 462                  * caller sets the same property again to the same value; this sets update = FALSE and hence full_draw_on_update = FALSE
 463                  * update now occurs, but full_draw_on_update is FALSE, so the full redraw does not happen,
 464                  * which results in graphical glitches.
 465                  *
 466                  * (Carl, 2/1/2010)
 467                  */
 468                 simplerect->full_draw_on_update = update;
 469         }
 470
 471         if (update || bounds_changed) {
 472                 gnome_canvas_item_request_update (GNOME_CANVAS_ITEM(object));
 473         }
 474 }
 475
 476 static void
 477 gnome_canvas_simplerect_get_property (GObject      *object,
 478                                       guint         prop_id,
 479                                       GValue       *value,
 480                                       GParamSpec   *pspec)
 481 {
 482         GnomeCanvasSimpleRect *rect = GNOME_CANVAS_SIMPLERECT (object);
 483
 484         g_return_if_fail (object != NULL);
 485         g_return_if_fail (GNOME_IS_CANVAS_SIMPLERECT (object));
 486
 487         switch (prop_id) {
 488         case PROP_X1:
 489                 g_value_set_double (value, rect->x1);
 490                 break;
 491         case PROP_X2:
 492                 g_value_set_double (value, rect->x2);
 493                 break;
 494         case PROP_Y1:
 495                 g_value_set_double (value, rect->y1);
 496                 break;
 497         case PROP_Y2:
 498                 g_value_set_double (value, rect->y2);
 499                 break;
 500         case PROP_OUTLINE_WHAT:
 501                 g_value_set_uint (value, rect->outline_what);
 502                 break;
 503         case PROP_FILL:
 504                 g_value_set_boolean (value, rect->fill);
 505                 break;
 506         case PROP_OUTLINE_PIXELS:
 507                 g_value_set_uint (value, rect->outline_pixels);
 508                 break;
 509         case PROP_FILL_COLOR_RGBA:
 510                 g_value_set_uint (value, rect->fill_color);
 511                 break;
 512         case PROP_OUTLINE_COLOR_RGBA:
 513                 g_value_set_uint (value, rect->outline_color);
 514                 break;
 515         case PROP_DRAW:
 516                 g_value_set_boolean (value, rect->draw);
 517                 break;
 518
 519         default:
 520                 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
 521                 break;
 522         }
 523 }
 524
 525
 526 static void
 527 gnome_canvas_simplerect_update (GnomeCanvasItem *item, double *affine, ArtSVP *clip_path, int flags)
 528 {
 529         GnomeCanvasSimpleRect *simplerect;
 530
 531         simplerect = GNOME_CANVAS_SIMPLERECT (item);
 532
 533         if (parent_class->update)
 534                 (* parent_class->update) (item, affine, clip_path, flags);
 535
 536         gnome_canvas_simplerect_reset_bounds (item);
 537
 538         if (simplerect->full_draw_on_update) {
 539                 gnome_canvas_request_redraw (item->canvas,
 540                                              simplerect->bbox_ulx,
 541                                              simplerect->bbox_uly,
 542                                              simplerect->bbox_lrx+0.5,
 543                                              simplerect->bbox_lry+0.5);
 544                 simplerect->full_draw_on_update = FALSE;
 545         }
 546
 547         UINT_TO_RGBA (simplerect->fill_color, &simplerect->fill_r, &simplerect->fill_g, &simplerect->fill_b, &simplerect->fill_a);
 548         UINT_TO_RGBA (simplerect->outline_color, &simplerect->outline_r, &simplerect->outline_g, &simplerect->outline_b, &simplerect->outline_a);
 549 }
 550
 551 // this can be useful for debugging/understanding how the canvas redraws
 552 // stuff.
 553
 554 #undef HARLEQUIN_DEBUGGING
 555
 556 #undef SIMPLERECT_FAST_RENDERER
 557 #ifdef SIMPLERECT_FAST_RENDERER
 558
 559 static void
 560 gnome_canvas_simplerect_render (GnomeCanvasItem *item,
 561                               GnomeCanvasBuf *buf)
 562 {
 563         GnomeCanvasSimpleRect *simplerect;
 564         int end, begin;
 565         int ey, sy;
 566         unsigned int i;
 567         ArtIRect intersection;
 568         ArtIRect self;
 569
 570         simplerect = GNOME_CANVAS_SIMPLERECT (item);
 571
 572         if (parent_class->render) {
 573                 (*parent_class->render) (item, buf);
 574         }
 575
 576         if (buf->is_bg) {
 577
 578 #ifdef HARLEQUIN_DEBUGGING
 579                 gint randr, randg, randb;
 580                 randr = random() % 255;
 581                 randg = random() % 255;
 582                 randb = random() % 255;
 583                 PAINT_BOX(buf, randr, randg, randb, 255, buf->rect.x0, buf->rect.y0, buf->rect.x1, buf->rect.y1);
 584 #endif
 585                 gnome_canvas_buf_ensure_buf (buf);
 586                 buf->is_bg = FALSE;
 587         }
 588
 589         if (!simplerect->draw) {
 590                 return;
 591         }
 592
 593         self.x0 = simplerect->bbox_ulx;
 594         self.y0 = simplerect->bbox_uly;
 595         self.x1 = simplerect->bbox_lrx;
 596         self.y1 = simplerect->bbox_lry;
 597
 598         art_irect_intersect (&intersection, &self, &buf->rect);
 599
 600         begin = MAX(simplerect->bbox_ulx, buf->rect.x0);
 601         end = MIN((simplerect->bbox_lrx-1), buf->rect.x1);
 602
 603         sy = simplerect->bbox_uly;
 604         ey = simplerect->bbox_lry-1;
 605
 606         if (simplerect->fill) {
 607
 608                 // this can be useful for debugging/understanding how the canvas redraws
 609                 // stuff.
 610
 611 #ifdef HARLEQUIN_DEBUGGING
 612                 gint randr, randg, randb;
 613                 randr = random() % 255;
 614                 randg = random() % 255;
 615                 randb = random() % 255;
 616                 PAINT_BOX(buf, randr, randg, randb, simplerect->fill_a, begin, sy, end, ey);
 617 #else
 618                 PAINT_BOX (buf, simplerect->fill_r, simplerect->fill_g, simplerect->fill_b, simplerect->fill_a,
 619                            intersection.x0, intersection.y0,
 620                            intersection.x1, intersection.y1);
 621 #endif
 622
 623         }
 624
 625         if (simplerect->outline_a > 0) {
 626                 for (i = 0; i < simplerect->outline_pixels; ++i) {
 627
 628                         if (simplerect->outline_what & 0x1) {
 629                                 if (begin == simplerect->bbox_ulx) {
 630                                         PAINT_VERTA(buf, simplerect->outline_r, simplerect->outline_g, simplerect->outline_b, simplerect->outline_a, begin + i, sy, ey);
 631                                 }
 632                         }
 633
 634                         if (simplerect->outline_what & 0x2) {
 635                                 if (end == (simplerect->bbox_lrx - 1)) {
 636                                         PAINT_VERTA(buf, simplerect->outline_r, simplerect->outline_g, simplerect->outline_b, simplerect->outline_a, end - i, sy, ey + 1);
 637                                 }
 638                         }
 639
 640                         if (simplerect->outline_what & 0x4) {
 641                                 PAINT_HORIZA(buf, simplerect->outline_r, simplerect->outline_g, simplerect->outline_b, simplerect->outline_a, begin, end, sy+i);
 642                         }
 643
 644                         if (simplerect->outline_what & 0x8) {
 645                                 PAINT_HORIZA(buf, simplerect->outline_r, simplerect->outline_g, simplerect->outline_b, simplerect->outline_a, begin, end + 1, ey-i);
 646                         }
 647                 }
 648         }
 649 }
 650
 651 #else /* SIMPLERECT_FAST_RENDERER */
 652
 653 static void
 654 gnome_canvas_simplerect_render (GnomeCanvasItem *item,
 655                               GnomeCanvasBuf *buf)
 656 {
 657         GnomeCanvasSimpleRect *simplerect;
 658         int end, begin;
 659         int ey, sy;
 660         int i;
 661
 662         simplerect = GNOME_CANVAS_SIMPLERECT (item);
 663
 664         if (parent_class->render) {
 665                 (*parent_class->render) (item, buf);
 666         }
 667
 668         if (buf->is_bg) {
 669
 670 #ifdef HARLEQUIN_DEBUGGING
 671                 gint randr, randg, randb;
 672                 randr = random() % 255;
 673                 randg = random() % 255;
 674                 randb = random() % 255;
 675                 PAINT_BOX(buf, randr, randg, randb, 255, buf->rect.x0, buf->rect.y0, buf->rect.x1, buf->rect.y1);
 676 #endif
 677                 gnome_canvas_buf_ensure_buf (buf);
 678                 buf->is_bg = FALSE;
 679         }
 680
 681         if (!simplerect->draw) {
 682                 return;
 683         }
 684
 685         begin = MAX(simplerect->bbox_ulx,buf->rect.x0);
 686         end = MIN((simplerect->bbox_lrx-1),buf->rect.x1);
 687
 688         sy = simplerect->bbox_uly;
 689         ey = simplerect->bbox_lry-1;
 690
 691         if (simplerect->fill) {
 692
 693 #ifdef HARLEQUIN_DEBUGGING
 694                 gint randr, randg, randb;
 695                 randr = random() % 255;
 696                 randg = random() % 255;
 697                 randb = random() % 255;
 698                 PAINT_BOX(buf, randr, randg, randb, simplerect->fill_a, begin, sy, end, ey);
 699 #else
 700                 PAINT_BOX(buf, simplerect->fill_r, simplerect->fill_g, simplerect->fill_b, simplerect->fill_a, begin, sy, end, ey);
 701 #endif
 702         }
 703
 704         if (simplerect->outline_a) {
 705                 for (i = 0; i < (int) simplerect->outline_pixels; ++i) {
 706
 707                         if (simplerect->outline_what & 0x1) {
 708                                 if (begin == simplerect->bbox_ulx) {
 709                                         PAINT_VERTA(buf, simplerect->outline_r, simplerect->outline_g, simplerect->outline_b, simplerect->outline_a, begin + i, sy, ey);
 710                                 }
 711                         }
 712
 713                         if (simplerect->outline_what & 0x2) {
 714                                 if (end == (simplerect->bbox_lrx - 1)) {
 715                                         PAINT_VERTA(buf, simplerect->outline_r, simplerect->outline_g, simplerect->outline_b, simplerect->outline_a, end - i, sy, ey + 1);
 716                                 }
 717                         }
 718
 719                         if (simplerect->outline_what & 0x4) {
 720                                 PAINT_HORIZA(buf, simplerect->outline_r, simplerect->outline_g, simplerect->outline_b, simplerect->outline_a, begin, end, sy+i);
 721                         }
 722
 723                         if (simplerect->outline_what & 0x8) {
 724                                 PAINT_HORIZA(buf, simplerect->outline_r, simplerect->outline_g, simplerect->outline_b, simplerect->outline_a, begin, end + 1, ey-i);
 725                         }
 726                 }
 727         }
 728 }
 729 #endif /* SIMPLERECT_FAST_RENDERER */
 730
 731 static void
 732 gnome_canvas_simplerect_draw (GnomeCanvasItem *item,
 733                               GdkDrawable *drawable,
 734                               int x, int y,
 735                               int width, int height)
 736 {
 737         GnomeCanvasSimpleRect *simplerect;
 738         cairo_t* cr;
 739         double ulx;
 740         double uly;
 741         double lrx;
 742         double lry;
 743
 744         simplerect = GNOME_CANVAS_SIMPLERECT (item);
 745
 746         cr = gdk_cairo_create (drawable);
 747
 748         if (x > simplerect->bbox_ulx) {
 749                 ulx = x;
 750         } else {
 751                 ulx = simplerect->bbox_ulx;
 752         }
 753
 754         if (y > simplerect->bbox_uly) {
 755                 uly = y;
 756         } else {
 757                 uly = simplerect->bbox_uly;
 758         }
 759
 760         if (x + width > simplerect->bbox_lrx) {
 761                 lrx = simplerect->bbox_lrx;
 762         } else {
 763                 lrx = x + width;
 764         }
 765
 766         if (y + height > simplerect->bbox_lry) {
 767                 lry = simplerect->bbox_lry;
 768         } else {
 769                 lry = y + height;
 770         }
 771
 772         ulx -= x;
 773         uly -= y;
 774         lrx -= x;
 775         lry -= y;
 776
 777         cairo_rectangle (cr, ulx, uly, lrx - ulx, lry - uly);
 778
 779         if (simplerect->fill) {
 780                 cairo_set_source_rgba (cr,
 781                                        simplerect->fill_r/255.0,
 782                                        simplerect->fill_g/255.0,
 783                                        simplerect->fill_b/255.0,
 784                                        simplerect->fill_a/255.0);
 785                 cairo_fill (cr);
 786         }
 787
 788         if (simplerect->outline_what && simplerect->outline_pixels) {
 789
 790 #define x_in_range(a) (x <= (a) && (a) < x + width)
 791 #define y_in_range(a) (y <= (a) && (a) < y + height)
 792
 793                 cairo_set_line_width (cr, simplerect->outline_pixels);
 794
 795                 cairo_set_source_rgb (cr,
 796                                       simplerect->outline_r/255.0,
 797                                       simplerect->outline_g/255.0,
 798                                       simplerect->outline_b/255.0);
 799
 800                 if (simplerect->outline_what & 0x1) {
 801                         /* left edge, if visible */
 802                         if (x_in_range (simplerect->bbox_ulx)) {
 803                                 cairo_move_to (cr, ulx+0.5, uly+0.5);
 804                                 cairo_line_to (cr, ulx+0.5, lry+0.5);
 805                                 cairo_stroke (cr);
 806                         }
 807                 }
 808
 809                 if (simplerect->outline_what & 0x2) {
 810                         /* right edge, if visible */
 811                         if (x_in_range (simplerect->bbox_lrx)) {
 812                                 cairo_move_to (cr, lrx+0.5, uly+0.5);
 813                                 cairo_line_to (cr, lrx+0.5, lry+0.5);
 814                                 cairo_stroke (cr);
 815                         }
 816                 }
 817
 818                 if (simplerect->outline_what & 0x4) {
 819                         /* top edge */
 820                         if (y_in_range (simplerect->bbox_uly)) {
 821                                 cairo_move_to (cr, ulx+0.5, uly+0.5);
 822                                 cairo_line_to (cr, lrx+0.5, uly+0.5);
 823                                 cairo_stroke (cr);
 824                         }
 825                 }
 826
 827                 if (simplerect->outline_what & 0x8) {
 828                         /* bottom edge */
 829                         if (y_in_range (simplerect->bbox_lry)) {
 830                                 cairo_move_to (cr, ulx+0.5, lry+0.5);
 831                                 cairo_line_to (cr, lrx+0.5, lry+0.5);
 832                                 cairo_stroke (cr);
 833                         }
 834                 }
 835         }
 836
 837         cairo_destroy (cr);
 838 }
 839
 840 static double
 841 gnome_canvas_simplerect_point (GnomeCanvasItem *item, double x, double y, int cx, int cy, GnomeCanvasItem **actual_item)
 842 {
 843         (void) cx;
 844         (void) cy;
 845
 846         double x1, y1, x2, y2;
 847         double dx, dy;
 848
 849         *actual_item = item;
 850
 851         /* Find the bounds for the rectangle plus its outline width */
 852
 853         gnome_canvas_simplerect_bounds (item, &x1, &y1, &x2, &y2);
 854
 855         /* Is point inside rectangle */
 856
 857         if ((x >= x1) && (y >= y1) && (x <= x2) && (y <= y2)) {
 858                 return 0.0;
 859         }
 860
 861         /* Point is outside rectangle */
 862
 863         if (x < x1)
 864                 dx = x1 - x;
 865         else if (x > x2)
 866                 dx = x - x2;
 867         else
 868                 dx = 0.0;
 869
 870         if (y < y1)
 871                 dy = y1 - y;
 872         else if (y > y2)
 873                 dy = y - y2;
 874         else
 875                 dy = 0.0;
 876
 877         return sqrt (dx * dx + dy * dy);
 878 }