Pileus Git - ~andy/gtk/blob - gtk/gtkcellrendererpixbuf.c

   1 /* gtkcellrendererpixbuf.c
   2  * Copyright (C) 2000  Red Hat, Inc.,  Jonathan Blandford <jrb@redhat.com>
   3  *
   4  * This library is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Library General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2 of the License, or (at your option) any later version.
   8  *
   9  * This library is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * Library General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Library General Public
  15  * License along with this library; if not, write to the
  16  * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  17  * Boston, MA 02111-1307, USA.
  18  */
  19
  20 #include <config.h>
  21 #include <stdlib.h>
  22 #include "gtkcellrendererpixbuf.h"
  23 #include "gtkiconfactory.h"
  24 #include "gtkicontheme.h"
  25 #include "gtkintl.h"
  26 #include "gtkprivate.h"
  27 #include "gtkalias.h"
  28
  29 static void gtk_cell_renderer_pixbuf_get_property  (GObject                    *object,
  30                                                     guint                       param_id,
  31                                                     GValue                     *value,
  32                                                     GParamSpec                 *pspec);
  33 static void gtk_cell_renderer_pixbuf_set_property  (GObject                    *object,
  34                                                     guint                       param_id,
  35                                                     const GValue               *value,
  36                                                     GParamSpec                 *pspec);
  37 static void gtk_cell_renderer_pixbuf_finalize   (GObject                    *object);
  38 static void gtk_cell_renderer_pixbuf_create_stock_pixbuf (GtkCellRendererPixbuf *cellpixbuf,
  39                                                           GtkWidget             *widget);
  40 static void gtk_cell_renderer_pixbuf_create_named_icon_pixbuf (GtkCellRendererPixbuf *cellpixbuf,
  41                                                                GtkWidget             *widget);
  42 static void gtk_cell_renderer_pixbuf_get_size   (GtkCellRenderer            *cell,
  43                                                  GtkWidget                  *widget,
  44                                                  GdkRectangle               *rectangle,
  45                                                  gint                       *x_offset,
  46                                                  gint                       *y_offset,
  47                                                  gint                       *width,
  48                                                  gint                       *height);
  49 static void gtk_cell_renderer_pixbuf_render     (GtkCellRenderer            *cell,
  50                                                  GdkDrawable                *window,
  51                                                  GtkWidget                  *widget,
  52                                                  GdkRectangle               *background_area,
  53                                                  GdkRectangle               *cell_area,
  54                                                  GdkRectangle               *expose_area,
  55                                                  GtkCellRendererState        flags);
  56
  57
  58 enum {
  59         PROP_ZERO,
  60         PROP_PIXBUF,
  61         PROP_PIXBUF_EXPANDER_OPEN,
  62         PROP_PIXBUF_EXPANDER_CLOSED,
  63         PROP_STOCK_ID,
  64         PROP_STOCK_SIZE,
  65         PROP_STOCK_DETAIL,
  66         PROP_FOLLOW_STATE,
  67         PROP_ICON_NAME
  68 };
  69
  70
  71 #define GTK_CELL_RENDERER_PIXBUF_GET_PRIVATE(obj) (G_TYPE_INSTANCE_GET_PRIVATE ((obj), GTK_TYPE_CELL_RENDERER_PIXBUF, GtkCellRendererPixbufPrivate))
  72
  73 typedef struct _GtkCellRendererPixbufPrivate GtkCellRendererPixbufPrivate;
  74 struct _GtkCellRendererPixbufPrivate
  75 {
  76   gchar *stock_id;
  77   GtkIconSize stock_size;
  78   gchar *stock_detail;
  79   gboolean follow_state;
  80
  81   gchar *icon_name;
  82 };
  83
  84 G_DEFINE_TYPE (GtkCellRendererPixbuf, gtk_cell_renderer_pixbuf, GTK_TYPE_CELL_RENDERER)
  85
  86 static void
  87 gtk_cell_renderer_pixbuf_init (GtkCellRendererPixbuf *cellpixbuf)
  88 {
  89   GtkCellRendererPixbufPrivate *priv;
  90
  91   priv = GTK_CELL_RENDERER_PIXBUF_GET_PRIVATE (cellpixbuf);
  92   priv->stock_size = GTK_ICON_SIZE_MENU;
  93 }
  94
  95 static void
  96 gtk_cell_renderer_pixbuf_class_init (GtkCellRendererPixbufClass *class)
  97 {
  98   GObjectClass *object_class = G_OBJECT_CLASS (class);
  99   GtkCellRendererClass *cell_class = GTK_CELL_RENDERER_CLASS (class);
 100
 101   object_class->finalize = gtk_cell_renderer_pixbuf_finalize;
 102
 103   object_class->get_property = gtk_cell_renderer_pixbuf_get_property;
 104   object_class->set_property = gtk_cell_renderer_pixbuf_set_property;
 105
 106   cell_class->get_size = gtk_cell_renderer_pixbuf_get_size;
 107   cell_class->render = gtk_cell_renderer_pixbuf_render;
 108
 109   g_object_class_install_property (object_class,
 110                                    PROP_PIXBUF,
 111                                    g_param_spec_object ("pixbuf",
 112                                                         P_("Pixbuf Object"),
 113                                                         P_("The pixbuf to render"),
 114                                                         GDK_TYPE_PIXBUF,
 115                                                         GTK_PARAM_READWRITE));
 116
 117   g_object_class_install_property (object_class,
 118                                    PROP_PIXBUF_EXPANDER_OPEN,
 119                                    g_param_spec_object ("pixbuf-expander-open",
 120                                                         P_("Pixbuf Expander Open"),
 121                                                         P_("Pixbuf for open expander"),
 122                                                         GDK_TYPE_PIXBUF,
 123                                                         GTK_PARAM_READWRITE));
 124
 125   g_object_class_install_property (object_class,
 126                                    PROP_PIXBUF_EXPANDER_CLOSED,
 127                                    g_param_spec_object ("pixbuf-expander-closed",
 128                                                         P_("Pixbuf Expander Closed"),
 129                                                         P_("Pixbuf for closed expander"),
 130                                                         GDK_TYPE_PIXBUF,
 131                                                         GTK_PARAM_READWRITE));
 132
 133   g_object_class_install_property (object_class,
 134                                    PROP_STOCK_ID,
 135                                    g_param_spec_string ("stock-id",
 136                                                         P_("Stock ID"),
 137                                                         P_("The stock ID of the stock icon to render"),
 138                                                         NULL,
 139                                                         GTK_PARAM_READWRITE));
 140
 141   g_object_class_install_property (object_class,
 142                                    PROP_STOCK_SIZE,
 143                                    g_param_spec_uint ("stock-size",
 144                                                       P_("Size"),
 145                                                       P_("The GtkIconSize value that specifies the size of the rendered icon"),
 146                                                       0,
 147                                                       G_MAXUINT,
 148                                                       GTK_ICON_SIZE_MENU,
 149                                                       GTK_PARAM_READWRITE));
 150
 151   g_object_class_install_property (object_class,
 152                                    PROP_STOCK_DETAIL,
 153                                    g_param_spec_string ("stock-detail",
 154                                                         P_("Detail"),
 155                                                         P_("Render detail to pass to the theme engine"),
 156                                                         NULL,
 157                                                         GTK_PARAM_READWRITE));
 158
 159
 160   /**
 161    * GtkCellRendererPixbuf:icon-name:
 162    *
 163    * The name of the themed icon to display.
 164    * This property only has an effect if not overridden by "stock_id"
 165    * or "pixbuf" properties.
 166    *
 167    * Since: 2.8
 168    */
 169   g_object_class_install_property (object_class,
 170                                    PROP_ICON_NAME,
 171                                    g_param_spec_string ("icon-name",
 172                                                         P_("Icon Name"),
 173                                                         P_("The name of the icon from the icon theme"),
 174                                                         NULL,
 175                                                         GTK_PARAM_READWRITE));
 176
 177   /**
 178    * GtkCellRendererPixbuf:follow-state:
 179    *
 180    * Specifies whether the rendered pixbuf should be colorized
 181    * according to the #GtkCellRendererState.
 182    *
 183    * Since: 2.8
 184    */
 185   g_object_class_install_property (object_class,
 186                                    PROP_FOLLOW_STATE,
 187                                    g_param_spec_boolean ("follow-state",
 188                                                          P_("Follow State"),
 189                                                          P_("Whether the rendered pixbuf should be "
 190                                                             "colorized according to the state"),
 191                                                          FALSE,
 192                                                          GTK_PARAM_READWRITE));
 193
 194
 195   g_type_class_add_private (object_class, sizeof (GtkCellRendererPixbufPrivate));
 196 }
 197
 198 static void
 199 gtk_cell_renderer_pixbuf_finalize (GObject *object)
 200 {
 201   GtkCellRendererPixbuf *cellpixbuf = GTK_CELL_RENDERER_PIXBUF (object);
 202   GtkCellRendererPixbufPrivate *priv;
 203
 204   priv = GTK_CELL_RENDERER_PIXBUF_GET_PRIVATE (object);
 205
 206   if (cellpixbuf->pixbuf)
 207     g_object_unref (cellpixbuf->pixbuf);
 208   if (cellpixbuf->pixbuf_expander_open)
 209     g_object_unref (cellpixbuf->pixbuf_expander_open);
 210   if (cellpixbuf->pixbuf_expander_closed)
 211     g_object_unref (cellpixbuf->pixbuf_expander_closed);
 212
 213   g_free (priv->stock_id);
 214   g_free (priv->stock_detail);
 215   g_free (priv->icon_name);
 216
 217   (* G_OBJECT_CLASS (gtk_cell_renderer_pixbuf_parent_class)->finalize) (object);
 218 }
 219
 220 static void
 221 gtk_cell_renderer_pixbuf_get_property (GObject        *object,
 222                                        guint           param_id,
 223                                        GValue         *value,
 224                                        GParamSpec     *pspec)
 225 {
 226   GtkCellRendererPixbuf *cellpixbuf = GTK_CELL_RENDERER_PIXBUF (object);
 227   GtkCellRendererPixbufPrivate *priv;
 228
 229   priv = GTK_CELL_RENDERER_PIXBUF_GET_PRIVATE (object);
 230
 231   switch (param_id)
 232     {
 233     case PROP_PIXBUF:
 234       g_value_set_object (value, G_OBJECT (cellpixbuf->pixbuf));
 235       break;
 236     case PROP_PIXBUF_EXPANDER_OPEN:
 237       g_value_set_object (value, G_OBJECT (cellpixbuf->pixbuf_expander_open));
 238       break;
 239     case PROP_PIXBUF_EXPANDER_CLOSED:
 240       g_value_set_object (value, G_OBJECT (cellpixbuf->pixbuf_expander_closed));
 241       break;
 242     case PROP_STOCK_ID:
 243       g_value_set_string (value, priv->stock_id);
 244       break;
 245     case PROP_STOCK_SIZE:
 246       g_value_set_uint (value, priv->stock_size);
 247       break;
 248     case PROP_STOCK_DETAIL:
 249       g_value_set_string (value, priv->stock_detail);
 250       break;
 251     case PROP_FOLLOW_STATE:
 252       g_value_set_boolean (value, priv->follow_state);
 253       break;
 254     case PROP_ICON_NAME:
 255       g_value_set_string (value, priv->icon_name);
 256       break;
 257     default:
 258       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec);
 259       break;
 260     }
 261 }
 262
 263
 264 static void
 265 gtk_cell_renderer_pixbuf_set_property (GObject      *object,
 266                                        guint         param_id,
 267                                        const GValue *value,
 268                                        GParamSpec   *pspec)
 269 {
 270   GtkCellRendererPixbuf *cellpixbuf = GTK_CELL_RENDERER_PIXBUF (object);
 271   GtkCellRendererPixbufPrivate *priv;
 272
 273   priv = GTK_CELL_RENDERER_PIXBUF_GET_PRIVATE (object);
 274
 275   switch (param_id)
 276     {
 277     case PROP_PIXBUF:
 278       if (cellpixbuf->pixbuf)
 279         g_object_unref (cellpixbuf->pixbuf);
 280       cellpixbuf->pixbuf = (GdkPixbuf*) g_value_dup_object (value);
 281       if (cellpixbuf->pixbuf)
 282         {
 283           if (priv->stock_id)
 284             {
 285               g_free (priv->stock_id);
 286               priv->stock_id = NULL;
 287               g_object_notify (object, "stock-id");
 288             }
 289           if (priv->icon_name)
 290             {
 291               g_free (priv->icon_name);
 292               priv->icon_name = NULL;
 293               g_object_notify (object, "icon-name");
 294             }
 295         }
 296       break;
 297     case PROP_PIXBUF_EXPANDER_OPEN:
 298       if (cellpixbuf->pixbuf_expander_open)
 299         g_object_unref (cellpixbuf->pixbuf_expander_open);
 300       cellpixbuf->pixbuf_expander_open = (GdkPixbuf*) g_value_dup_object (value);
 301       break;
 302     case PROP_PIXBUF_EXPANDER_CLOSED:
 303       if (cellpixbuf->pixbuf_expander_closed)
 304         g_object_unref (cellpixbuf->pixbuf_expander_closed);
 305       cellpixbuf->pixbuf_expander_closed = (GdkPixbuf*) g_value_dup_object (value);
 306       break;
 307     case PROP_STOCK_ID:
 308       if (priv->stock_id)
 309         {
 310           if (cellpixbuf->pixbuf)
 311             {
 312               g_object_unref (cellpixbuf->pixbuf);
 313               cellpixbuf->pixbuf = NULL;
 314               g_object_notify (object, "pixbuf");
 315             }
 316           g_free (priv->stock_id);
 317         }
 318       priv->stock_id = g_value_dup_string (value);
 319       if (priv->stock_id)
 320         {
 321           if (cellpixbuf->pixbuf)
 322             {
 323               g_object_unref (cellpixbuf->pixbuf);
 324               cellpixbuf->pixbuf = NULL;
 325               g_object_notify (object, "pixbuf");
 326             }
 327           if (priv->icon_name)
 328             {
 329               g_free (priv->icon_name);
 330               priv->icon_name = NULL;
 331               g_object_notify (object, "icon-name");
 332             }
 333         }
 334       break;
 335     case PROP_STOCK_SIZE:
 336       priv->stock_size = g_value_get_uint (value);
 337       break;
 338     case PROP_STOCK_DETAIL:
 339       if (priv->stock_detail)
 340         g_free (priv->stock_detail);
 341       priv->stock_detail = g_value_dup_string (value);
 342       break;
 343     case PROP_ICON_NAME:
 344       if (priv->icon_name)
 345         {
 346           if (cellpixbuf->pixbuf)
 347             {
 348               g_object_unref (cellpixbuf->pixbuf);
 349               cellpixbuf->pixbuf = NULL;
 350               g_object_notify (object, "pixbuf");
 351             }
 352           g_free (priv->icon_name);
 353         }
 354       priv->icon_name = g_value_dup_string (value);
 355       if (priv->icon_name)
 356         {
 357           if (cellpixbuf->pixbuf)
 358             {
 359               g_object_unref (cellpixbuf->pixbuf);
 360               cellpixbuf->pixbuf = NULL;
 361               g_object_notify (object, "pixbuf");
 362             }
 363           if (priv->stock_id)
 364             {
 365               g_free (priv->stock_id);
 366               priv->stock_id = NULL;
 367               g_object_notify (object, "stock-id");
 368             }
 369         }
 370       break;
 371     case PROP_FOLLOW_STATE:
 372       priv->follow_state = g_value_get_boolean (value);
 373       break;
 374     default:
 375       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec);
 376       break;
 377     }
 378 }
 379
 380 /**
 381  * gtk_cell_renderer_pixbuf_new:
 382  *
 383  * Creates a new #GtkCellRendererPixbuf. Adjust rendering
 384  * parameters using object properties. Object properties can be set
 385  * globally (with g_object_set()). Also, with #GtkTreeViewColumn, you
 386  * can bind a property to a value in a #GtkTreeModel. For example, you
 387  * can bind the "pixbuf" property on the cell renderer to a pixbuf value
 388  * in the model, thus rendering a different image in each row of the
 389  * #GtkTreeView.
 390  *
 391  * Return value: the new cell renderer
 392  **/
 393 GtkCellRenderer *
 394 gtk_cell_renderer_pixbuf_new (void)
 395 {
 396   return g_object_new (GTK_TYPE_CELL_RENDERER_PIXBUF, NULL);
 397 }
 398
 399 static void
 400 gtk_cell_renderer_pixbuf_create_stock_pixbuf (GtkCellRendererPixbuf *cellpixbuf,
 401                                               GtkWidget             *widget)
 402 {
 403   GtkCellRendererPixbufPrivate *priv;
 404
 405   priv = GTK_CELL_RENDERER_PIXBUF_GET_PRIVATE (cellpixbuf);
 406
 407   if (cellpixbuf->pixbuf)
 408     g_object_unref (cellpixbuf->pixbuf);
 409
 410   cellpixbuf->pixbuf = gtk_widget_render_icon (widget,
 411                                                priv->stock_id,
 412                                                priv->stock_size,
 413                                                priv->stock_detail);
 414
 415   g_object_notify (G_OBJECT (cellpixbuf), "pixbuf");
 416 }
 417
 418 static void
 419 gtk_cell_renderer_pixbuf_create_named_icon_pixbuf (GtkCellRendererPixbuf *cellpixbuf,
 420                                                    GtkWidget             *widget)
 421 {
 422   GtkCellRendererPixbufPrivate *priv;
 423   GdkScreen *screen;
 424   GtkIconTheme *icon_theme;
 425   GtkSettings *settings;
 426   gint width, height;
 427   GError *error = NULL;
 428
 429   priv = GTK_CELL_RENDERER_PIXBUF_GET_PRIVATE (cellpixbuf);
 430
 431   if (cellpixbuf->pixbuf)
 432     g_object_unref (cellpixbuf->pixbuf);
 433
 434   screen = gtk_widget_get_screen (GTK_WIDGET (widget));
 435   icon_theme = gtk_icon_theme_get_for_screen (screen);
 436   settings = gtk_settings_get_for_screen (screen);
 437
 438   if (!gtk_icon_size_lookup_for_settings (settings,
 439                                           priv->stock_size,
 440                                           &width, &height))
 441     {
 442       g_warning ("Invalid icon size %u\n", priv->stock_size);
 443       width = height = 24;
 444     }
 445
 446   cellpixbuf->pixbuf =
 447     gtk_icon_theme_load_icon (icon_theme,
 448                               priv->icon_name,
 449                               MIN (width, height), 0, &error);
 450   if (!cellpixbuf->pixbuf)
 451     {
 452       g_warning ("could not load image: %s\n", error->message);
 453       g_error_free (error);
 454     }
 455
 456   g_object_notify (G_OBJECT (cellpixbuf), "pixbuf");
 457 }
 458
 459 static GdkPixbuf *
 460 create_colorized_pixbuf (GdkPixbuf *src,
 461                          GdkColor  *new_color)
 462 {
 463   gint i, j;
 464   gint width, height, has_alpha, src_row_stride, dst_row_stride;
 465   gint red_value, green_value, blue_value;
 466   guchar *target_pixels;
 467   guchar *original_pixels;
 468   guchar *pixsrc;
 469   guchar *pixdest;
 470   GdkPixbuf *dest;
 471
 472   red_value = new_color->red / 255.0;
 473   green_value = new_color->green / 255.0;
 474   blue_value = new_color->blue / 255.0;
 475
 476   dest = gdk_pixbuf_new (gdk_pixbuf_get_colorspace (src),
 477                          gdk_pixbuf_get_has_alpha (src),
 478                          gdk_pixbuf_get_bits_per_sample (src),
 479                          gdk_pixbuf_get_width (src),
 480                          gdk_pixbuf_get_height (src));
 481
 482   has_alpha = gdk_pixbuf_get_has_alpha (src);
 483   width = gdk_pixbuf_get_width (src);
 484   height = gdk_pixbuf_get_height (src);
 485   src_row_stride = gdk_pixbuf_get_rowstride (src);
 486   dst_row_stride = gdk_pixbuf_get_rowstride (dest);
 487   target_pixels = gdk_pixbuf_get_pixels (dest);
 488   original_pixels = gdk_pixbuf_get_pixels (src);
 489
 490   for (i = 0; i < height; i++) {
 491     pixdest = target_pixels + i*dst_row_stride;
 492     pixsrc = original_pixels + i*src_row_stride;
 493     for (j = 0; j < width; j++) {
 494       *pixdest++ = (*pixsrc++ * red_value) >> 8;
 495       *pixdest++ = (*pixsrc++ * green_value) >> 8;
 496       *pixdest++ = (*pixsrc++ * blue_value) >> 8;
 497       if (has_alpha) {
 498         *pixdest++ = *pixsrc++;
 499       }
 500     }
 501   }
 502   return dest;
 503 }
 504
 505
 506 static void
 507 gtk_cell_renderer_pixbuf_get_size (GtkCellRenderer *cell,
 508                                    GtkWidget       *widget,
 509                                    GdkRectangle    *cell_area,
 510                                    gint            *x_offset,
 511                                    gint            *y_offset,
 512                                    gint            *width,
 513                                    gint            *height)
 514 {
 515   GtkCellRendererPixbuf *cellpixbuf = (GtkCellRendererPixbuf *) cell;
 516   GtkCellRendererPixbufPrivate *priv;
 517   gint pixbuf_width  = 0;
 518   gint pixbuf_height = 0;
 519   gint calc_width;
 520   gint calc_height;
 521
 522   priv = GTK_CELL_RENDERER_PIXBUF_GET_PRIVATE (cell);
 523
 524   if (!cellpixbuf->pixbuf)
 525     {
 526       if (priv->stock_id)
 527         gtk_cell_renderer_pixbuf_create_stock_pixbuf (cellpixbuf, widget);
 528       else if (priv->icon_name)
 529         gtk_cell_renderer_pixbuf_create_named_icon_pixbuf (cellpixbuf, widget);
 530     }
 531
 532   if (cellpixbuf->pixbuf)
 533     {
 534       pixbuf_width  = gdk_pixbuf_get_width (cellpixbuf->pixbuf);
 535       pixbuf_height = gdk_pixbuf_get_height (cellpixbuf->pixbuf);
 536     }
 537   if (cellpixbuf->pixbuf_expander_open)
 538     {
 539       pixbuf_width  = MAX (pixbuf_width, gdk_pixbuf_get_width (cellpixbuf->pixbuf_expander_open));
 540       pixbuf_height = MAX (pixbuf_height, gdk_pixbuf_get_height (cellpixbuf->pixbuf_expander_open));
 541     }
 542   if (cellpixbuf->pixbuf_expander_closed)
 543     {
 544       pixbuf_width  = MAX (pixbuf_width, gdk_pixbuf_get_width (cellpixbuf->pixbuf_expander_closed));
 545       pixbuf_height = MAX (pixbuf_height, gdk_pixbuf_get_height (cellpixbuf->pixbuf_expander_closed));
 546     }
 547
 548   calc_width  = (gint) cell->xpad * 2 + pixbuf_width;
 549   calc_height = (gint) cell->ypad * 2 + pixbuf_height;
 550
 551   if (cell_area && pixbuf_width > 0 && pixbuf_height > 0)
 552     {
 553       if (x_offset)
 554         {
 555           *x_offset = (((gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL) ?
 556                         (1.0 - cell->xalign) : cell->xalign) *
 557                        (cell_area->width - calc_width));
 558           *x_offset = MAX (*x_offset, 0);
 559         }
 560       if (y_offset)
 561         {
 562           *y_offset = (cell->yalign *
 563                        (cell_area->height - calc_height));
 564           *y_offset = MAX (*y_offset, 0);
 565         }
 566     }
 567   else
 568     {
 569       if (x_offset) *x_offset = 0;
 570       if (y_offset) *y_offset = 0;
 571     }
 572
 573   if (width)
 574     *width = calc_width;
 575
 576   if (height)
 577     *height = calc_height;
 578 }
 579
 580 static void
 581 gtk_cell_renderer_pixbuf_render (GtkCellRenderer      *cell,
 582                                  GdkWindow            *window,
 583                                  GtkWidget            *widget,
 584                                  GdkRectangle         *background_area,
 585                                  GdkRectangle         *cell_area,
 586                                  GdkRectangle         *expose_area,
 587                                  GtkCellRendererState  flags)
 588
 589 {
 590   GtkCellRendererPixbuf *cellpixbuf = (GtkCellRendererPixbuf *) cell;
 591   GtkCellRendererPixbufPrivate *priv;
 592   GdkPixbuf *pixbuf;
 593   GdkPixbuf *invisible = NULL;
 594   GdkPixbuf *colorized = NULL;
 595   GdkRectangle pix_rect;
 596   GdkRectangle draw_rect;
 597   cairo_t *cr;
 598
 599   priv = GTK_CELL_RENDERER_PIXBUF_GET_PRIVATE (cell);
 600
 601   gtk_cell_renderer_pixbuf_get_size (cell, widget, cell_area,
 602                                      &pix_rect.x,
 603                                      &pix_rect.y,
 604                                      &pix_rect.width,
 605                                      &pix_rect.height);
 606
 607   pix_rect.x += cell_area->x + cell->xpad;
 608   pix_rect.y += cell_area->y + cell->ypad;
 609   pix_rect.width  -= cell->xpad * 2;
 610   pix_rect.height -= cell->ypad * 2;
 611
 612   if (!gdk_rectangle_intersect (cell_area, &pix_rect, &draw_rect) ||
 613       !gdk_rectangle_intersect (expose_area, &draw_rect, &draw_rect))
 614     return;
 615
 616   pixbuf = cellpixbuf->pixbuf;
 617
 618   if (cell->is_expander)
 619     {
 620       if (cell->is_expanded &&
 621           cellpixbuf->pixbuf_expander_open != NULL)
 622         pixbuf = cellpixbuf->pixbuf_expander_open;
 623       else if (!cell->is_expanded &&
 624                cellpixbuf->pixbuf_expander_closed != NULL)
 625         pixbuf = cellpixbuf->pixbuf_expander_closed;
 626     }
 627
 628   if (!pixbuf)
 629     return;
 630
 631   if (GTK_WIDGET_STATE (widget) == GTK_STATE_INSENSITIVE || !cell->sensitive)
 632     {
 633       GtkIconSource *source;
 634
 635       source = gtk_icon_source_new ();
 636       gtk_icon_source_set_pixbuf (source, pixbuf);
 637       /* The size here is arbitrary; since size isn't
 638        * wildcarded in the source, it isn't supposed to be
 639        * scaled by the engine function
 640        */
 641       gtk_icon_source_set_size (source, GTK_ICON_SIZE_SMALL_TOOLBAR);
 642       gtk_icon_source_set_size_wildcarded (source, FALSE);
 643
 644      invisible = gtk_style_render_icon (widget->style,
 645                                         source,
 646                                         gtk_widget_get_direction (widget),
 647                                         GTK_STATE_INSENSITIVE,
 648                                         /* arbitrary */
 649                                         (GtkIconSize)-1,
 650                                         widget,
 651                                         "gtkcellrendererpixbuf");
 652
 653      gtk_icon_source_free (source);
 654
 655      pixbuf = invisible;
 656     }
 657   else if (priv->follow_state &&
 658            (flags & (GTK_CELL_RENDERER_SELECTED|GTK_CELL_RENDERER_PRELIT)) != 0)
 659     {
 660       GtkStateType state;
 661
 662       if ((flags & GTK_CELL_RENDERER_SELECTED) != 0)
 663         {
 664           if (GTK_WIDGET_HAS_FOCUS (widget))
 665             state = GTK_STATE_SELECTED;
 666           else
 667             state = GTK_STATE_ACTIVE;
 668         }
 669       else
 670         state = GTK_STATE_PRELIGHT;
 671
 672       colorized = create_colorized_pixbuf (pixbuf,
 673                                            &widget->style->base[state]);
 674
 675       pixbuf = colorized;
 676     }
 677
 678   cr = gdk_cairo_create (window);
 679
 680   gdk_cairo_set_source_pixbuf (cr, pixbuf, pix_rect.x, pix_rect.y);
 681   gdk_cairo_rectangle (cr, &draw_rect);
 682   cairo_fill (cr);
 683
 684   cairo_destroy (cr);
 685
 686   if (invisible)
 687     g_object_unref (invisible);
 688
 689   if (colorized)
 690     g_object_unref (colorized);
 691 }
 692
 693 #define __GTK_CELL_RENDERER_PIXBUF_C__
 694 #include "gtkaliasdef.c"