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

   1 /* gtkellview.c
   2  * Copyright (C) 2002, 2003  Kristian Rietveld <kris@gtk.org>
   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 "gtkcellview.h"
  22 #include "gtkcelllayout.h"
  23 #include "gtkintl.h"
  24 #include "gtksignal.h"
  25 #include "gtkcellrenderertext.h"
  26 #include "gtkcellrendererpixbuf.h"
  27 #include "gtkprivate.h"
  28 #include <gobject/gmarshal.h>
  29 #include "gtkalias.h"
  30
  31 typedef struct _GtkCellViewCellInfo GtkCellViewCellInfo;
  32 struct _GtkCellViewCellInfo
  33 {
  34   GtkCellRenderer *cell;
  35
  36   gint requested_width;
  37   gint real_width;
  38   guint expand : 1;
  39   guint pack : 1;
  40
  41   GSList *attributes;
  42
  43   GtkCellLayoutDataFunc func;
  44   gpointer func_data;
  45   GDestroyNotify destroy;
  46 };
  47
  48 struct _GtkCellViewPrivate
  49 {
  50   GtkTreeModel *model;
  51   GtkTreeRowReference *displayed_row;
  52   GList *cell_list;
  53   gint spacing;
  54
  55   GdkColor background;
  56   gboolean background_set;
  57 };
  58
  59
  60 static void        gtk_cell_view_cell_layout_init         (GtkCellLayoutIface *iface);
  61 static void        gtk_cell_view_get_property             (GObject           *object,
  62                                                            guint             param_id,
  63                                                            GValue           *value,
  64                                                            GParamSpec       *pspec);
  65 static void        gtk_cell_view_set_property             (GObject          *object,
  66                                                            guint             param_id,
  67                                                            const GValue     *value,
  68                                                            GParamSpec       *pspec);
  69 static void        gtk_cell_view_finalize                 (GObject          *object);
  70 static void        gtk_cell_view_style_set                (GtkWidget        *widget,
  71                                                            GtkStyle         *previous_style);
  72 static void        gtk_cell_view_size_request             (GtkWidget        *widget,
  73                                                            GtkRequisition   *requisition);
  74 static void        gtk_cell_view_size_allocate            (GtkWidget        *widget,
  75                                                            GtkAllocation    *allocation);
  76 static gboolean    gtk_cell_view_expose                   (GtkWidget        *widget,
  77                                                            GdkEventExpose   *event);
  78 static void        gtk_cell_view_set_value                (GtkCellView     *cell_view,
  79                                                            GtkCellRenderer *renderer,
  80                                                            gchar           *property,
  81                                                            GValue          *value);
  82 static GtkCellViewCellInfo *gtk_cell_view_get_cell_info   (GtkCellView      *cellview,
  83                                                            GtkCellRenderer  *renderer);
  84 static void        gtk_cell_view_set_cell_data            (GtkCellView      *cell_view);
  85
  86
  87 static void        gtk_cell_view_cell_layout_pack_start        (GtkCellLayout         *layout,
  88                                                                 GtkCellRenderer       *renderer,
  89                                                                 gboolean               expand);
  90 static void        gtk_cell_view_cell_layout_pack_end          (GtkCellLayout         *layout,
  91                                                                 GtkCellRenderer       *renderer,
  92                                                                 gboolean               expand);
  93 static void        gtk_cell_view_cell_layout_add_attribute     (GtkCellLayout         *layout,
  94                                                                 GtkCellRenderer       *renderer,
  95                                                                 const gchar           *attribute,
  96                                                                 gint                   column);
  97 static void       gtk_cell_view_cell_layout_clear              (GtkCellLayout         *layout);
  98 static void       gtk_cell_view_cell_layout_clear_attributes   (GtkCellLayout         *layout,
  99                                                                 GtkCellRenderer       *renderer);
 100 static void       gtk_cell_view_cell_layout_set_cell_data_func (GtkCellLayout         *layout,
 101                                                                 GtkCellRenderer       *cell,
 102                                                                 GtkCellLayoutDataFunc  func,
 103                                                                 gpointer               func_data,
 104                                                                 GDestroyNotify         destroy);
 105 static void       gtk_cell_view_cell_layout_reorder            (GtkCellLayout         *layout,
 106                                                                 GtkCellRenderer       *cell,
 107                                                                 gint                   position);
 108
 109
 110 #define GTK_CELL_VIEW_GET_PRIVATE(obj)    (G_TYPE_INSTANCE_GET_PRIVATE ((obj), GTK_TYPE_CELL_VIEW, GtkCellViewPrivate))
 111
 112 enum
 113 {
 114   PROP_0,
 115   PROP_BACKGROUND,
 116   PROP_BACKGROUND_GDK,
 117   PROP_BACKGROUND_SET,
 118   PROP_MODEL
 119 };
 120
 121 G_DEFINE_TYPE_WITH_CODE (GtkCellView, gtk_cell_view, GTK_TYPE_WIDGET,
 122                          G_IMPLEMENT_INTERFACE (GTK_TYPE_CELL_LAYOUT,
 123                                                 gtk_cell_view_cell_layout_init))
 124
 125 static void
 126 gtk_cell_view_class_init (GtkCellViewClass *klass)
 127 {
 128   GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
 129   GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
 130
 131   gobject_class->get_property = gtk_cell_view_get_property;
 132   gobject_class->set_property = gtk_cell_view_set_property;
 133   gobject_class->finalize = gtk_cell_view_finalize;
 134
 135   widget_class->expose_event = gtk_cell_view_expose;
 136   widget_class->size_allocate = gtk_cell_view_size_allocate;
 137   widget_class->size_request = gtk_cell_view_size_request;
 138   widget_class->style_set = gtk_cell_view_style_set;
 139
 140   /* properties */
 141   g_object_class_install_property (gobject_class,
 142                                    PROP_BACKGROUND,
 143                                    g_param_spec_string ("background",
 144                                                         P_("Background color name"),
 145                                                         P_("Background color as a string"),
 146                                                         NULL,
 147                                                         GTK_PARAM_WRITABLE));
 148   g_object_class_install_property (gobject_class,
 149                                    PROP_BACKGROUND_GDK,
 150                                    g_param_spec_boxed ("background-gdk",
 151                                                       P_("Background color"),
 152                                                       P_("Background color as a GdkColor"),
 153                                                       GDK_TYPE_COLOR,
 154                                                       GTK_PARAM_READWRITE));
 155
 156   /**
 157    * GtkCellView:model
 158    *
 159    * The model for cell view
 160    *
 161    * since 2.10
 162    */
 163   g_object_class_install_property (gobject_class,
 164                                    PROP_MODEL,
 165                                    g_param_spec_object  ("model",
 166                                                          P_("CellView model"),
 167                                                          P_("The model for cell view"),
 168                                                          GTK_TYPE_TREE_MODEL,
 169                                                          GTK_PARAM_READWRITE));
 170
 171 #define ADD_SET_PROP(propname, propval, nick, blurb) g_object_class_install_property (gobject_class, propval, g_param_spec_boolean (propname, nick, blurb, FALSE, GTK_PARAM_READWRITE))
 172
 173   ADD_SET_PROP ("background-set", PROP_BACKGROUND_SET,
 174                 P_("Background set"),
 175                 P_("Whether this tag affects the background color"));
 176
 177   g_type_class_add_private (gobject_class, sizeof (GtkCellViewPrivate));
 178 }
 179
 180 static void
 181 gtk_cell_view_cell_layout_init (GtkCellLayoutIface *iface)
 182 {
 183   iface->pack_start = gtk_cell_view_cell_layout_pack_start;
 184   iface->pack_end = gtk_cell_view_cell_layout_pack_end;
 185   iface->clear = gtk_cell_view_cell_layout_clear;
 186   iface->add_attribute = gtk_cell_view_cell_layout_add_attribute;
 187   iface->set_cell_data_func = gtk_cell_view_cell_layout_set_cell_data_func;
 188   iface->clear_attributes = gtk_cell_view_cell_layout_clear_attributes;
 189   iface->reorder = gtk_cell_view_cell_layout_reorder;
 190 }
 191
 192 static void
 193 gtk_cell_view_get_property (GObject    *object,
 194                             guint       param_id,
 195                             GValue     *value,
 196                             GParamSpec *pspec)
 197 {
 198   GtkCellView *view = GTK_CELL_VIEW (object);
 199
 200   switch (param_id)
 201     {
 202       case PROP_BACKGROUND_GDK:
 203         {
 204           GdkColor color;
 205
 206           color = view->priv->background;
 207
 208           g_value_set_boxed (value, &color);
 209         }
 210         break;
 211       case PROP_BACKGROUND_SET:
 212         g_value_set_boolean (value, view->priv->background_set);
 213         break;
 214       case PROP_MODEL:
 215         g_value_set_object (value, view->priv->model);
 216         break;
 217       default:
 218         G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec);
 219         break;
 220     }
 221 }
 222
 223 static void
 224 gtk_cell_view_set_property (GObject      *object,
 225                             guint         param_id,
 226                             const GValue *value,
 227                             GParamSpec   *pspec)
 228 {
 229   GtkCellView *view = GTK_CELL_VIEW (object);
 230
 231   switch (param_id)
 232     {
 233       case PROP_BACKGROUND:
 234         {
 235           GdkColor color;
 236
 237           if (!g_value_get_string (value))
 238             gtk_cell_view_set_background_color (view, NULL);
 239           else if (gdk_color_parse (g_value_get_string (value), &color))
 240             gtk_cell_view_set_background_color (view, &color);
 241           else
 242             g_warning ("Don't know color `%s'", g_value_get_string (value));
 243
 244           g_object_notify (object, "background-gdk");
 245         }
 246         break;
 247       case PROP_BACKGROUND_GDK:
 248         gtk_cell_view_set_background_color (view, g_value_get_boxed (value));
 249         break;
 250       case PROP_BACKGROUND_SET:
 251         view->priv->background_set = g_value_get_boolean (value);
 252         break;
 253       case PROP_MODEL:
 254         gtk_cell_view_set_model (view, g_value_get_object (value));
 255         break;
 256     default:
 257         G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec);
 258         break;
 259     }
 260 }
 261
 262 static void
 263 gtk_cell_view_init (GtkCellView *cellview)
 264 {
 265   GTK_WIDGET_SET_FLAGS (cellview, GTK_NO_WINDOW);
 266
 267   cellview->priv = GTK_CELL_VIEW_GET_PRIVATE (cellview);
 268 }
 269
 270 static void
 271 gtk_cell_view_style_set (GtkWidget *widget,
 272                          GtkStyle  *previous_style)
 273 {
 274   if (previous_style && GTK_WIDGET_REALIZED (widget))
 275     gdk_window_set_background (widget->window,
 276                                &widget->style->base[GTK_WIDGET_STATE (widget)]);
 277 }
 278
 279 static void
 280 gtk_cell_view_finalize (GObject *object)
 281 {
 282   GtkCellView *cellview = GTK_CELL_VIEW (object);
 283
 284   gtk_cell_view_cell_layout_clear (GTK_CELL_LAYOUT (cellview));
 285
 286   if (cellview->priv->model)
 287      g_object_unref (cellview->priv->model);
 288
 289   if (cellview->priv->displayed_row)
 290      gtk_tree_row_reference_free (cellview->priv->displayed_row);
 291
 292   (* G_OBJECT_CLASS (gtk_cell_view_parent_class)->finalize) (object);
 293 }
 294
 295 static void
 296 gtk_cell_view_size_request (GtkWidget      *widget,
 297                             GtkRequisition *requisition)
 298 {
 299   GList *i;
 300   gboolean first_cell = TRUE;
 301   GtkCellView *cellview;
 302
 303   cellview = GTK_CELL_VIEW (widget);
 304
 305   requisition->width = 0;
 306   requisition->height = 0;
 307
 308   if (cellview->priv->displayed_row)
 309     gtk_cell_view_set_cell_data (cellview);
 310
 311   for (i = cellview->priv->cell_list; i; i = i->next)
 312     {
 313       gint width, height;
 314       GtkCellViewCellInfo *info = (GtkCellViewCellInfo *)i->data;
 315
 316       if (!info->cell->visible)
 317         continue;
 318
 319       if (!first_cell)
 320         requisition->width += cellview->priv->spacing;
 321
 322       gtk_cell_renderer_get_size (info->cell, widget, NULL, NULL, NULL,
 323                                   &width, &height);
 324
 325       info->requested_width = width;
 326       requisition->width += width;
 327       requisition->height = MAX (requisition->height, height);
 328
 329       first_cell = FALSE;
 330     }
 331 }
 332
 333 static void
 334 gtk_cell_view_size_allocate (GtkWidget     *widget,
 335                              GtkAllocation *allocation)
 336 {
 337   GList *i;
 338   gint expand_cell_count = 0;
 339   gint full_requested_width = 0;
 340   gint extra_space;
 341   GtkCellView *cellview;
 342
 343   widget->allocation = *allocation;
 344
 345   cellview = GTK_CELL_VIEW (widget);
 346
 347   /* checking how much extra space we have */
 348   for (i = cellview->priv->cell_list; i; i = i->next)
 349     {
 350       GtkCellViewCellInfo *info = (GtkCellViewCellInfo *)i->data;
 351
 352       if (!info->cell->visible)
 353         continue;
 354
 355       if (info->expand)
 356         expand_cell_count++;
 357
 358       full_requested_width += info->requested_width;
 359     }
 360
 361   extra_space = widget->allocation.width - full_requested_width;
 362   if (extra_space < 0)
 363     extra_space = 0;
 364   else if (extra_space > 0 && expand_cell_count > 0)
 365     extra_space /= expand_cell_count;
 366
 367   /* iterate list for PACK_START cells */
 368   for (i = cellview->priv->cell_list; i; i = i->next)
 369     {
 370       GtkCellViewCellInfo *info = (GtkCellViewCellInfo *)i->data;
 371
 372       if (info->pack == GTK_PACK_END)
 373         continue;
 374
 375       if (!info->cell->visible)
 376         continue;
 377
 378       info->real_width = info->requested_width + (info->expand?extra_space:0);
 379     }
 380
 381   /* iterate list for PACK_END cells */
 382   for (i = cellview->priv->cell_list; i; i = i->next)
 383     {
 384       GtkCellViewCellInfo *info = (GtkCellViewCellInfo *)i->data;
 385
 386       if (info->pack == GTK_PACK_START)
 387         continue;
 388
 389       if (!info->cell->visible)
 390         continue;
 391
 392       info->real_width = info->requested_width + (info->expand?extra_space:0);
 393     }
 394 }
 395
 396 static gboolean
 397 gtk_cell_view_expose (GtkWidget      *widget,
 398                       GdkEventExpose *event)
 399 {
 400   GList *i;
 401   GtkCellView *cellview;
 402   GdkRectangle area;
 403   GtkCellRendererState state;
 404   gboolean rtl = (gtk_widget_get_direction(widget) == GTK_TEXT_DIR_RTL);
 405
 406   cellview = GTK_CELL_VIEW (widget);
 407
 408   if (! GTK_WIDGET_DRAWABLE (widget))
 409     return FALSE;
 410
 411   /* "blank" background */
 412   if (cellview->priv->background_set)
 413     {
 414       cairo_t *cr = gdk_cairo_create (GTK_WIDGET (cellview)->window);
 415
 416       gdk_cairo_rectangle (cr, &widget->allocation);
 417       cairo_set_source_rgb (cr,
 418                             cellview->priv->background.red / 65535.,
 419                             cellview->priv->background.green / 65535.,
 420                             cellview->priv->background.blue / 65535.);
 421       cairo_fill (cr);
 422
 423       cairo_destroy (cr);
 424     }
 425
 426   /* set cell data (if available) */
 427   if (cellview->priv->displayed_row)
 428     gtk_cell_view_set_cell_data (cellview);
 429   else if (cellview->priv->model)
 430     return FALSE;
 431
 432   /* render cells */
 433   area = widget->allocation;
 434
 435   /* we draw on our very own window, initialize x and y to zero */
 436   area.x = widget->allocation.x + (rtl ? widget->allocation.width : 0);
 437   area.y = widget->allocation.y;
 438
 439   if (GTK_WIDGET_STATE (widget) == GTK_STATE_PRELIGHT)
 440     state = GTK_CELL_RENDERER_PRELIT;
 441   else
 442     state = 0;
 443
 444   /* PACK_START */
 445   for (i = cellview->priv->cell_list; i; i = i->next)
 446     {
 447       GtkCellViewCellInfo *info = (GtkCellViewCellInfo *)i->data;
 448
 449       if (info->pack == GTK_PACK_END)
 450         continue;
 451
 452       if (!info->cell->visible)
 453         continue;
 454
 455       area.width = info->real_width;
 456       if (rtl)
 457          area.x -= area.width;
 458
 459       gtk_cell_renderer_render (info->cell,
 460                                 event->window,
 461                                 widget,
 462                                 /* FIXME! */
 463                                 &area, &area, &event->area, state);
 464
 465       if (!rtl)
 466          area.x += info->real_width;
 467     }
 468
 469    area.x = rtl ? widget->allocation.x : (widget->allocation.x + widget->allocation.width);
 470
 471   /* PACK_END */
 472   for (i = cellview->priv->cell_list; i; i = i->next)
 473     {
 474       GtkCellViewCellInfo *info = (GtkCellViewCellInfo *)i->data;
 475
 476       if (info->pack == GTK_PACK_START)
 477         continue;
 478
 479       if (!info->cell->visible)
 480         continue;
 481
 482       area.width = info->real_width;
 483       if (!rtl)
 484          area.x -= area.width;
 485
 486       gtk_cell_renderer_render (info->cell,
 487                                 widget->window,
 488                                 widget,
 489                                 /* FIXME ! */
 490                                 &area, &area, &event->area, state);
 491       if (rtl)
 492          area.x += info->real_width;
 493     }
 494
 495   return FALSE;
 496 }
 497
 498 static GtkCellViewCellInfo *
 499 gtk_cell_view_get_cell_info (GtkCellView     *cellview,
 500                              GtkCellRenderer *renderer)
 501 {
 502   GList *i;
 503
 504   for (i = cellview->priv->cell_list; i; i = i->next)
 505     {
 506       GtkCellViewCellInfo *info = (GtkCellViewCellInfo *)i->data;
 507
 508       if (info->cell == renderer)
 509         return info;
 510     }
 511
 512   return NULL;
 513 }
 514
 515 static void
 516 gtk_cell_view_set_cell_data (GtkCellView *cell_view)
 517 {
 518   GList *i;
 519   GtkTreeIter iter;
 520   GtkTreePath *path;
 521
 522   g_return_if_fail (cell_view->priv->displayed_row != NULL);
 523
 524   path = gtk_tree_row_reference_get_path (cell_view->priv->displayed_row);
 525   if (!path)
 526     return;
 527
 528   gtk_tree_model_get_iter (cell_view->priv->model, &iter, path);
 529   gtk_tree_path_free (path);
 530
 531   for (i = cell_view->priv->cell_list; i; i = i->next)
 532     {
 533       GSList *j;
 534       GtkCellViewCellInfo *info = i->data;
 535
 536       g_object_freeze_notify (G_OBJECT (info->cell));
 537
 538       for (j = info->attributes; j && j->next; j = j->next->next)
 539         {
 540           gchar *property = j->data;
 541           gint column = GPOINTER_TO_INT (j->next->data);
 542           GValue value = {0, };
 543
 544           gtk_tree_model_get_value (cell_view->priv->model, &iter,
 545                                     column, &value);
 546           g_object_set_property (G_OBJECT (info->cell),
 547                                  property, &value);
 548           g_value_unset (&value);
 549         }
 550
 551       if (info->func)
 552         (* info->func) (GTK_CELL_LAYOUT (cell_view),
 553                         info->cell,
 554                         cell_view->priv->model,
 555                         &iter,
 556                         info->func_data);
 557
 558       g_object_thaw_notify (G_OBJECT (info->cell));
 559     }
 560 }
 561
 562 /* GtkCellLayout implementation */
 563 static void
 564 gtk_cell_view_cell_layout_pack_start (GtkCellLayout   *layout,
 565                                       GtkCellRenderer *renderer,
 566                                       gboolean         expand)
 567 {
 568   GtkCellViewCellInfo *info;
 569   GtkCellView *cellview = GTK_CELL_VIEW (layout);
 570
 571   g_return_if_fail (GTK_IS_CELL_VIEW (cellview));
 572   g_return_if_fail (GTK_IS_CELL_RENDERER (renderer));
 573   g_return_if_fail (!gtk_cell_view_get_cell_info (cellview, renderer));
 574
 575   g_object_ref_sink (renderer);
 576
 577   info = g_new0 (GtkCellViewCellInfo, 1);
 578   info->cell = renderer;
 579   info->expand = expand ? TRUE : FALSE;
 580   info->pack = GTK_PACK_START;
 581
 582   cellview->priv->cell_list = g_list_append (cellview->priv->cell_list, info);
 583 }
 584
 585 static void
 586 gtk_cell_view_cell_layout_pack_end (GtkCellLayout   *layout,
 587                                     GtkCellRenderer *renderer,
 588                                     gboolean         expand)
 589 {
 590   GtkCellViewCellInfo *info;
 591   GtkCellView *cellview = GTK_CELL_VIEW (layout);
 592
 593   g_return_if_fail (GTK_IS_CELL_VIEW (cellview));
 594   g_return_if_fail (GTK_IS_CELL_RENDERER (renderer));
 595   g_return_if_fail (!gtk_cell_view_get_cell_info (cellview, renderer));
 596
 597   g_object_ref_sink (renderer);
 598
 599   info = g_new0 (GtkCellViewCellInfo, 1);
 600   info->cell = renderer;
 601   info->expand = expand ? TRUE : FALSE;
 602   info->pack = GTK_PACK_END;
 603
 604   cellview->priv->cell_list = g_list_append (cellview->priv->cell_list, info);
 605 }
 606
 607 static void
 608 gtk_cell_view_cell_layout_add_attribute (GtkCellLayout   *layout,
 609                                          GtkCellRenderer *renderer,
 610                                          const gchar     *attribute,
 611                                          gint             column)
 612 {
 613   GtkCellViewCellInfo *info;
 614   GtkCellView *cellview = GTK_CELL_VIEW (layout);
 615
 616   g_return_if_fail (GTK_IS_CELL_VIEW (cellview));
 617   info = gtk_cell_view_get_cell_info (cellview, renderer);
 618   g_return_if_fail (info != NULL);
 619
 620   info->attributes = g_slist_prepend (info->attributes,
 621                                       GINT_TO_POINTER (column));
 622   info->attributes = g_slist_prepend (info->attributes,
 623                                       g_strdup (attribute));
 624 }
 625
 626 static void
 627 gtk_cell_view_cell_layout_clear (GtkCellLayout *layout)
 628 {
 629   GtkCellView *cellview = GTK_CELL_VIEW (layout);
 630
 631   g_return_if_fail (GTK_IS_CELL_VIEW (cellview));
 632
 633   while (cellview->priv->cell_list)
 634     {
 635       GtkCellViewCellInfo *info = (GtkCellViewCellInfo *)cellview->priv->cell_list->data;
 636
 637       gtk_cell_view_cell_layout_clear_attributes (layout, info->cell);
 638       g_object_unref (info->cell);
 639       g_free (info);
 640       cellview->priv->cell_list = g_list_delete_link (cellview->priv->cell_list,
 641                                                       cellview->priv->cell_list);
 642     }
 643 }
 644
 645 static void
 646 gtk_cell_view_cell_layout_set_cell_data_func (GtkCellLayout         *layout,
 647                                               GtkCellRenderer       *cell,
 648                                               GtkCellLayoutDataFunc  func,
 649                                               gpointer               func_data,
 650                                               GDestroyNotify         destroy)
 651 {
 652   GtkCellView *cellview = GTK_CELL_VIEW (layout);
 653   GtkCellViewCellInfo *info;
 654
 655   g_return_if_fail (GTK_IS_CELL_VIEW (cellview));
 656
 657   info = gtk_cell_view_get_cell_info (cellview, cell);
 658   g_return_if_fail (info != NULL);
 659
 660   if (info->destroy)
 661     {
 662       GDestroyNotify d = info->destroy;
 663
 664       info->destroy = NULL;
 665       d (info->func_data);
 666     }
 667
 668   info->func = func;
 669   info->func_data = func_data;
 670   info->destroy = destroy;
 671 }
 672
 673 static void
 674 gtk_cell_view_cell_layout_clear_attributes (GtkCellLayout   *layout,
 675                                             GtkCellRenderer *renderer)
 676 {
 677   GtkCellViewCellInfo *info;
 678   GtkCellView *cellview = GTK_CELL_VIEW (layout);
 679   GSList *list;
 680
 681   g_return_if_fail (GTK_IS_CELL_VIEW (cellview));
 682   g_return_if_fail (GTK_IS_CELL_RENDERER (renderer));
 683
 684   info = gtk_cell_view_get_cell_info (cellview, renderer);
 685   if (info != NULL)
 686     {
 687       list = info->attributes;
 688       while (list && list->next)
 689         {
 690           g_free (list->data);
 691           list = list->next->next;
 692         }
 693
 694       g_slist_free (info->attributes);
 695       info->attributes = NULL;
 696     }
 697 }
 698
 699 static void
 700 gtk_cell_view_cell_layout_reorder (GtkCellLayout   *layout,
 701                                    GtkCellRenderer *cell,
 702                                    gint             position)
 703 {
 704   GList *link;
 705   GtkCellViewCellInfo *info;
 706   GtkCellView *cellview = GTK_CELL_VIEW (layout);
 707
 708   g_return_if_fail (GTK_IS_CELL_VIEW (cellview));
 709   g_return_if_fail (GTK_IS_CELL_RENDERER (cell));
 710
 711   info = gtk_cell_view_get_cell_info (cellview, cell);
 712
 713   g_return_if_fail (info != NULL);
 714   g_return_if_fail (position >= 0);
 715
 716   link = g_list_find (cellview->priv->cell_list, info);
 717
 718   g_return_if_fail (link != NULL);
 719
 720   cellview->priv->cell_list = g_list_remove_link (cellview->priv->cell_list,
 721                                                   link);
 722   cellview->priv->cell_list = g_list_insert (cellview->priv->cell_list,
 723                                              info, position);
 724
 725   gtk_widget_queue_draw (GTK_WIDGET (cellview));
 726 }
 727
 728 /**
 729  * gtk_cell_view_new:
 730  *
 731  * Creates a new #GtkCellView widget.
 732  *
 733  * Return value: A newly created #GtkCellView widget.
 734  *
 735  * Since: 2.6
 736  */
 737 GtkWidget *
 738 gtk_cell_view_new (void)
 739 {
 740   GtkCellView *cellview;
 741
 742   cellview = g_object_new (gtk_cell_view_get_type (), NULL);
 743
 744   return GTK_WIDGET (cellview);
 745 }
 746
 747 /**
 748  * gtk_cell_view_new_with_text:
 749  * @text: the text to display in the cell view
 750  *
 751  * Creates a new #GtkCellView widget, adds a #GtkCellRendererText
 752  * to it, and makes its show @text.
 753  *
 754  * Return value: A newly created #GtkCellView widget.
 755  *
 756  * Since: 2.6
 757  */
 758 GtkWidget *
 759 gtk_cell_view_new_with_text (const gchar *text)
 760 {
 761   GtkCellView *cellview;
 762   GtkCellRenderer *renderer;
 763   GValue value = {0, };
 764
 765   cellview = GTK_CELL_VIEW (gtk_cell_view_new ());
 766
 767   renderer = gtk_cell_renderer_text_new ();
 768   gtk_cell_view_cell_layout_pack_start (GTK_CELL_LAYOUT (cellview),
 769                                         renderer, TRUE);
 770
 771   g_value_init (&value, G_TYPE_STRING);
 772   g_value_set_string (&value, text);
 773   gtk_cell_view_set_value (cellview, renderer, "text", &value);
 774   g_value_unset (&value);
 775
 776   return GTK_WIDGET (cellview);
 777 }
 778
 779 /**
 780  * gtk_cell_view_new_with_markup:
 781  * @markup: the text to display in the cell view
 782  *
 783  * Creates a new #GtkCellView widget, adds a #GtkCellRendererText
 784  * to it, and makes its show @markup. The text can text can be
 785  * marked up with the <link linkend="PangoMarkupFormat">Pango text
 786  * markup language</link>.
 787  *
 788  * Return value: A newly created #GtkCellView widget.
 789  *
 790  * Since: 2.6
 791  */
 792 GtkWidget *
 793 gtk_cell_view_new_with_markup (const gchar *markup)
 794 {
 795   GtkCellView *cellview;
 796   GtkCellRenderer *renderer;
 797   GValue value = {0, };
 798
 799   cellview = GTK_CELL_VIEW (gtk_cell_view_new ());
 800
 801   renderer = gtk_cell_renderer_text_new ();
 802   gtk_cell_view_cell_layout_pack_start (GTK_CELL_LAYOUT (cellview),
 803                                         renderer, TRUE);
 804
 805   g_value_init (&value, G_TYPE_STRING);
 806   g_value_set_string (&value, markup);
 807   gtk_cell_view_set_value (cellview, renderer, "markup", &value);
 808   g_value_unset (&value);
 809
 810   return GTK_WIDGET (cellview);
 811 }
 812
 813 /**
 814  * gtk_cell_view_new_with_pixbuf:
 815  * @pixbuf: the image to display in the cell view
 816  *
 817  * Creates a new #GtkCellView widget, adds a #GtkCellRendererPixbuf
 818  * to it, and makes its show @pixbuf.
 819  *
 820  * Return value: A newly created #GtkCellView widget.
 821  *
 822  * Since: 2.6
 823  */
 824 GtkWidget *
 825 gtk_cell_view_new_with_pixbuf (GdkPixbuf *pixbuf)
 826 {
 827   GtkCellView *cellview;
 828   GtkCellRenderer *renderer;
 829   GValue value = {0, };
 830
 831   cellview = GTK_CELL_VIEW (gtk_cell_view_new ());
 832
 833   renderer = gtk_cell_renderer_pixbuf_new ();
 834   gtk_cell_view_cell_layout_pack_start (GTK_CELL_LAYOUT (cellview),
 835                                         renderer, TRUE);
 836
 837   g_value_init (&value, GDK_TYPE_PIXBUF);
 838   g_value_set_object (&value, pixbuf);
 839   gtk_cell_view_set_value (cellview, renderer, "pixbuf", &value);
 840   g_value_unset (&value);
 841
 842   return GTK_WIDGET (cellview);
 843 }
 844
 845 /**
 846  * gtk_cell_view_set_value:
 847  * @cell_view: a #GtkCellView widget
 848  * @renderer: one of the renderers of @cell_view
 849  * @property: the name of the property of @renderer to set
 850  * @value: the new value to set the property to
 851  *
 852  * Sets a property of a cell renderer of @cell_view, and
 853  * makes sure the display of @cell_view is updated.
 854  *
 855  * Since: 2.6
 856  */
 857 static void
 858 gtk_cell_view_set_value (GtkCellView     *cell_view,
 859                          GtkCellRenderer *renderer,
 860                          gchar           *property,
 861                          GValue          *value)
 862 {
 863   g_return_if_fail (GTK_IS_CELL_VIEW (cell_view));
 864   g_return_if_fail (GTK_IS_CELL_RENDERER (renderer));
 865
 866   g_object_set_property (G_OBJECT (renderer), property, value);
 867
 868   /* force resize and redraw */
 869   gtk_widget_queue_resize (GTK_WIDGET (cell_view));
 870   gtk_widget_queue_draw (GTK_WIDGET (cell_view));
 871 }
 872
 873 /**
 874  * gtk_cell_view_set_model:
 875  * @cell_view: a #GtkCellView
 876  * @model: a #GtkTreeModel
 877  *
 878  * Sets the model for @cell_view.  If @cell_view already has a model
 879  * set, it will remove it before setting the new model.  If @model is
 880  * %NULL, then it will unset the old model.
 881  *
 882  * Since: 2.6
 883  */
 884 void
 885 gtk_cell_view_set_model (GtkCellView  *cell_view,
 886                          GtkTreeModel *model)
 887 {
 888   g_return_if_fail (GTK_IS_CELL_VIEW (cell_view));
 889   g_return_if_fail (GTK_IS_TREE_MODEL (model));
 890
 891   if (cell_view->priv->model)
 892     {
 893       if (cell_view->priv->displayed_row)
 894         gtk_tree_row_reference_free (cell_view->priv->displayed_row);
 895       cell_view->priv->displayed_row = NULL;
 896
 897       g_object_unref (cell_view->priv->model);
 898       cell_view->priv->model = NULL;
 899     }
 900
 901   cell_view->priv->model = model;
 902
 903   if (cell_view->priv->model)
 904     g_object_ref (cell_view->priv->model);
 905 }
 906
 907 /**
 908  * gtk_cell_view_set_displayed_row:
 909  * @cell_view: a #GtkCellView
 910  * @path: a #GtkTreePath or %NULL to unset.
 911  *
 912  * Sets the row of the model that is currently displayed
 913  * by the #GtkCellView. If the path is unset, then the
 914  * contents of the cellview "stick" at their last value;
 915  * this is not normally a desired result, but may be
 916  * a needed intermediate state if say, the model for
 917  * the #GtkCellView becomes temporarily empty.
 918  *
 919  * Since: 2.6
 920  **/
 921 void
 922 gtk_cell_view_set_displayed_row (GtkCellView *cell_view,
 923                                  GtkTreePath *path)
 924 {
 925   g_return_if_fail (GTK_IS_CELL_VIEW (cell_view));
 926   g_return_if_fail (GTK_IS_TREE_MODEL (cell_view->priv->model));
 927
 928   if (cell_view->priv->displayed_row)
 929     gtk_tree_row_reference_free (cell_view->priv->displayed_row);
 930
 931   if (path)
 932     {
 933       cell_view->priv->displayed_row =
 934         gtk_tree_row_reference_new (cell_view->priv->model, path);
 935     }
 936   else
 937     cell_view->priv->displayed_row = NULL;
 938
 939   /* force resize and redraw */
 940   gtk_widget_queue_resize (GTK_WIDGET (cell_view));
 941   gtk_widget_queue_draw (GTK_WIDGET (cell_view));
 942 }
 943
 944 /**
 945  * gtk_cell_view_get_displayed_row:
 946  * @cell_view: a #GtkCellView
 947  *
 948  * Returns a #GtkTreePath referring to the currently
 949  * displayed row. If no row is currently displayed,
 950  * %NULL is returned.
 951  *
 952  * Returns: the currently displayed row or %NULL
 953  *
 954  * Since: 2.6
 955  */
 956 GtkTreePath *
 957 gtk_cell_view_get_displayed_row (GtkCellView *cell_view)
 958 {
 959   g_return_val_if_fail (GTK_IS_CELL_VIEW (cell_view), NULL);
 960
 961   if (!cell_view->priv->displayed_row)
 962     return NULL;
 963
 964   return gtk_tree_row_reference_get_path (cell_view->priv->displayed_row);
 965 }
 966
 967 /**
 968  * gtk_cell_view_get_size_of_row:
 969  * @cell_view: a #GtkCellView
 970  * @path: a #GtkTreePath
 971  * @requisition: return location for the size
 972  *
 973  * Sets @requisition to the size needed by @cell_view to display
 974  * the model row pointed to by @path.
 975  *
 976  * Return value: %TRUE
 977  *
 978  * Since: 2.6
 979  */
 980 gboolean
 981 gtk_cell_view_get_size_of_row (GtkCellView    *cell_view,
 982                                GtkTreePath    *path,
 983                                GtkRequisition *requisition)
 984 {
 985   GtkTreeRowReference *tmp;
 986   GtkRequisition req;
 987
 988   g_return_val_if_fail (GTK_IS_CELL_VIEW (cell_view), FALSE);
 989   g_return_val_if_fail (path != NULL, FALSE);
 990   g_return_val_if_fail (requisition != NULL, FALSE);
 991
 992   tmp = cell_view->priv->displayed_row;
 993   cell_view->priv->displayed_row =
 994     gtk_tree_row_reference_new (cell_view->priv->model, path);
 995
 996   gtk_cell_view_size_request (GTK_WIDGET (cell_view), requisition);
 997
 998   gtk_tree_row_reference_free (cell_view->priv->displayed_row);
 999   cell_view->priv->displayed_row = tmp;
1000
1001   /* restore actual size info */
1002   gtk_cell_view_size_request (GTK_WIDGET (cell_view), &req);
1003
1004   return TRUE;
1005 }
1006
1007 /**
1008  * gtk_cell_view_set_background_color:
1009  * @cell_view: a #GtkCellView
1010  * @color: the new background color
1011  *
1012  * Sets the background color of @view.
1013  *
1014  * Since: 2.6
1015  */
1016 void
1017 gtk_cell_view_set_background_color (GtkCellView    *cell_view,
1018                                     const GdkColor *color)
1019 {
1020   g_return_if_fail (GTK_IS_CELL_VIEW (cell_view));
1021
1022   if (color)
1023     {
1024       if (!cell_view->priv->background_set)
1025         {
1026           cell_view->priv->background_set = TRUE;
1027           g_object_notify (G_OBJECT (cell_view), "background-set");
1028         }
1029
1030       cell_view->priv->background = *color;
1031     }
1032   else
1033     {
1034       if (cell_view->priv->background_set)
1035         {
1036           cell_view->priv->background_set = FALSE;
1037           g_object_notify (G_OBJECT (cell_view), "background-set");
1038         }
1039     }
1040
1041   gtk_widget_queue_draw (GTK_WIDGET (cell_view));
1042 }
1043
1044 /**
1045  * gtk_cell_view_get_cell_renderers:
1046  * @cell_view: a #GtkCellView
1047  *
1048  * Returns the cell renderers which have been added to @cell_view.
1049  *
1050  * Return value: a list of cell renderers. The list, but not the
1051  *   renderers has been newly allocated and should be freed with
1052  *   g_list_free() when no longer needed.
1053  *
1054  * Since: 2.6
1055  */
1056 GList *
1057 gtk_cell_view_get_cell_renderers (GtkCellView *cell_view)
1058 {
1059   GList *retval = NULL, *list;
1060
1061   g_return_val_if_fail (cell_view != NULL, NULL);
1062
1063   gtk_cell_view_set_cell_data (cell_view);
1064
1065   for (list = cell_view->priv->cell_list; list; list = list->next)
1066     {
1067       GtkCellViewCellInfo *info = (GtkCellViewCellInfo *)list->data;
1068
1069       retval = g_list_prepend (retval, info->cell);
1070     }
1071
1072   return g_list_reverse (retval);
1073 }
1074
1075 #define __GTK_CELL_VIEW_C__
1076 #include "gtkaliasdef.c"