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 <string.h>
  22 #include "gtkcellview.h"
  23 #include "gtkcelllayout.h"
  24 #include "gtkintl.h"
  25 #include "gtkcellrenderertext.h"
  26 #include "gtkcellrendererpixbuf.h"
  27 #include "gtkprivate.h"
  28 #include <gobject/gmarshal.h>
  29 #include "gtkbuildable.h"
  30 #include "gtkalias.h"
  31
  32 typedef struct _GtkCellViewCellInfo GtkCellViewCellInfo;
  33 struct _GtkCellViewCellInfo
  34 {
  35   GtkCellRenderer *cell;
  36
  37   gint requested_width;
  38   gint real_width;
  39   guint expand : 1;
  40   guint pack : 1;
  41
  42   GSList *attributes;
  43
  44   GtkCellLayoutDataFunc func;
  45   gpointer func_data;
  46   GDestroyNotify destroy;
  47 };
  48
  49 struct _GtkCellViewPrivate
  50 {
  51   GtkTreeModel *model;
  52   GtkTreeRowReference *displayed_row;
  53   GList *cell_list;
  54   gint spacing;
  55
  56   GdkColor background;
  57   gboolean background_set;
  58 };
  59
  60
  61 static void        gtk_cell_view_cell_layout_init         (GtkCellLayoutIface *iface);
  62 static void        gtk_cell_view_get_property             (GObject           *object,
  63                                                            guint             param_id,
  64                                                            GValue           *value,
  65                                                            GParamSpec       *pspec);
  66 static void        gtk_cell_view_set_property             (GObject          *object,
  67                                                            guint             param_id,
  68                                                            const GValue     *value,
  69                                                            GParamSpec       *pspec);
  70 static void        gtk_cell_view_finalize                 (GObject          *object);
  71 static void        gtk_cell_view_size_request             (GtkWidget        *widget,
  72                                                            GtkRequisition   *requisition);
  73 static void        gtk_cell_view_size_allocate            (GtkWidget        *widget,
  74                                                            GtkAllocation    *allocation);
  75 static gboolean    gtk_cell_view_expose                   (GtkWidget        *widget,
  76                                                            GdkEventExpose   *event);
  77 static void        gtk_cell_view_set_value                (GtkCellView     *cell_view,
  78                                                            GtkCellRenderer *renderer,
  79                                                            gchar           *property,
  80                                                            GValue          *value);
  81 static GtkCellViewCellInfo *gtk_cell_view_get_cell_info   (GtkCellView      *cellview,
  82                                                            GtkCellRenderer  *renderer);
  83 static void        gtk_cell_view_set_cell_data            (GtkCellView      *cell_view);
  84
  85
  86 static void        gtk_cell_view_cell_layout_pack_start        (GtkCellLayout         *layout,
  87                                                                 GtkCellRenderer       *renderer,
  88                                                                 gboolean               expand);
  89 static void        gtk_cell_view_cell_layout_pack_end          (GtkCellLayout         *layout,
  90                                                                 GtkCellRenderer       *renderer,
  91                                                                 gboolean               expand);
  92 static void        gtk_cell_view_cell_layout_add_attribute     (GtkCellLayout         *layout,
  93                                                                 GtkCellRenderer       *renderer,
  94                                                                 const gchar           *attribute,
  95                                                                 gint                   column);
  96 static void       gtk_cell_view_cell_layout_clear              (GtkCellLayout         *layout);
  97 static void       gtk_cell_view_cell_layout_clear_attributes   (GtkCellLayout         *layout,
  98                                                                 GtkCellRenderer       *renderer);
  99 static void       gtk_cell_view_cell_layout_set_cell_data_func (GtkCellLayout         *layout,
 100                                                                 GtkCellRenderer       *cell,
 101                                                                 GtkCellLayoutDataFunc  func,
 102                                                                 gpointer               func_data,
 103                                                                 GDestroyNotify         destroy);
 104 static void       gtk_cell_view_cell_layout_reorder            (GtkCellLayout         *layout,
 105                                                                 GtkCellRenderer       *cell,
 106                                                                 gint                   position);
 107 static GList *    gtk_cell_view_cell_layout_get_cells          (GtkCellLayout         *layout);
 108
 109 /* buildable */
 110 static void       gtk_cell_view_buildable_init                 (GtkBuildableIface     *iface);
 111 static gboolean   gtk_cell_view_buildable_custom_tag_start     (GtkBuildable          *buildable,
 112                                                                 GtkBuilder            *builder,
 113                                                                 GObject               *child,
 114                                                                 const gchar           *tagname,
 115                                                                 GMarkupParser         *parser,
 116                                                                 gpointer              *data);
 117 static void       gtk_cell_view_buildable_custom_tag_end       (GtkBuildable          *buildable,
 118                                                                 GtkBuilder            *builder,
 119                                                                 GObject               *child,
 120                                                                 const gchar           *tagname,
 121                                                                 gpointer              *data);
 122
 123 static GtkBuildableIface *parent_buildable_iface;
 124
 125 #define GTK_CELL_VIEW_GET_PRIVATE(obj)    (G_TYPE_INSTANCE_GET_PRIVATE ((obj), GTK_TYPE_CELL_VIEW, GtkCellViewPrivate))
 126
 127 enum
 128 {
 129   PROP_0,
 130   PROP_BACKGROUND,
 131   PROP_BACKGROUND_GDK,
 132   PROP_BACKGROUND_SET,
 133   PROP_MODEL
 134 };
 135
 136 G_DEFINE_TYPE_WITH_CODE (GtkCellView, gtk_cell_view, GTK_TYPE_WIDGET,
 137                          G_IMPLEMENT_INTERFACE (GTK_TYPE_CELL_LAYOUT,
 138                                                 gtk_cell_view_cell_layout_init)
 139                          G_IMPLEMENT_INTERFACE (GTK_TYPE_BUILDABLE,
 140                                                 gtk_cell_view_buildable_init))
 141
 142 static void
 143 gtk_cell_view_class_init (GtkCellViewClass *klass)
 144 {
 145   GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
 146   GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
 147
 148   gobject_class->get_property = gtk_cell_view_get_property;
 149   gobject_class->set_property = gtk_cell_view_set_property;
 150   gobject_class->finalize = gtk_cell_view_finalize;
 151
 152   widget_class->expose_event = gtk_cell_view_expose;
 153   widget_class->size_allocate = gtk_cell_view_size_allocate;
 154   widget_class->size_request = gtk_cell_view_size_request;
 155
 156   /* properties */
 157   g_object_class_install_property (gobject_class,
 158                                    PROP_BACKGROUND,
 159                                    g_param_spec_string ("background",
 160                                                         P_("Background color name"),
 161                                                         P_("Background color as a string"),
 162                                                         NULL,
 163                                                         GTK_PARAM_WRITABLE));
 164   g_object_class_install_property (gobject_class,
 165                                    PROP_BACKGROUND_GDK,
 166                                    g_param_spec_boxed ("background-gdk",
 167                                                       P_("Background color"),
 168                                                       P_("Background color as a GdkColor"),
 169                                                       GDK_TYPE_COLOR,
 170                                                       GTK_PARAM_READWRITE));
 171
 172   /**
 173    * GtkCellView:model
 174    *
 175    * The model for cell view
 176    *
 177    * since 2.10
 178    */
 179   g_object_class_install_property (gobject_class,
 180                                    PROP_MODEL,
 181                                    g_param_spec_object  ("model",
 182                                                          P_("CellView model"),
 183                                                          P_("The model for cell view"),
 184                                                          GTK_TYPE_TREE_MODEL,
 185                                                          GTK_PARAM_READWRITE));
 186
 187 #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))
 188
 189   ADD_SET_PROP ("background-set", PROP_BACKGROUND_SET,
 190                 P_("Background set"),
 191                 P_("Whether this tag affects the background color"));
 192
 193   g_type_class_add_private (gobject_class, sizeof (GtkCellViewPrivate));
 194 }
 195
 196 static void
 197 gtk_cell_view_buildable_init (GtkBuildableIface *iface)
 198 {
 199   parent_buildable_iface = g_type_interface_peek_parent (iface);
 200   iface->add_child = _gtk_cell_layout_buildable_add_child;
 201   iface->custom_tag_start = gtk_cell_view_buildable_custom_tag_start;
 202   iface->custom_tag_end = gtk_cell_view_buildable_custom_tag_end;
 203 }
 204
 205 static void
 206 gtk_cell_view_cell_layout_init (GtkCellLayoutIface *iface)
 207 {
 208   iface->pack_start = gtk_cell_view_cell_layout_pack_start;
 209   iface->pack_end = gtk_cell_view_cell_layout_pack_end;
 210   iface->clear = gtk_cell_view_cell_layout_clear;
 211   iface->add_attribute = gtk_cell_view_cell_layout_add_attribute;
 212   iface->set_cell_data_func = gtk_cell_view_cell_layout_set_cell_data_func;
 213   iface->clear_attributes = gtk_cell_view_cell_layout_clear_attributes;
 214   iface->reorder = gtk_cell_view_cell_layout_reorder;
 215   iface->get_cells = gtk_cell_view_cell_layout_get_cells;
 216 }
 217
 218 static void
 219 gtk_cell_view_get_property (GObject    *object,
 220                             guint       param_id,
 221                             GValue     *value,
 222                             GParamSpec *pspec)
 223 {
 224   GtkCellView *view = GTK_CELL_VIEW (object);
 225
 226   switch (param_id)
 227     {
 228       case PROP_BACKGROUND_GDK:
 229         {
 230           GdkColor color;
 231
 232           color = view->priv->background;
 233
 234           g_value_set_boxed (value, &color);
 235         }
 236         break;
 237       case PROP_BACKGROUND_SET:
 238         g_value_set_boolean (value, view->priv->background_set);
 239         break;
 240       case PROP_MODEL:
 241         g_value_set_object (value, view->priv->model);
 242         break;
 243       default:
 244         G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec);
 245         break;
 246     }
 247 }
 248
 249 static void
 250 gtk_cell_view_set_property (GObject      *object,
 251                             guint         param_id,
 252                             const GValue *value,
 253                             GParamSpec   *pspec)
 254 {
 255   GtkCellView *view = GTK_CELL_VIEW (object);
 256
 257   switch (param_id)
 258     {
 259       case PROP_BACKGROUND:
 260         {
 261           GdkColor color;
 262
 263           if (!g_value_get_string (value))
 264             gtk_cell_view_set_background_color (view, NULL);
 265           else if (gdk_color_parse (g_value_get_string (value), &color))
 266             gtk_cell_view_set_background_color (view, &color);
 267           else
 268             g_warning ("Don't know color `%s'", g_value_get_string (value));
 269
 270           g_object_notify (object, "background-gdk");
 271         }
 272         break;
 273       case PROP_BACKGROUND_GDK:
 274         gtk_cell_view_set_background_color (view, g_value_get_boxed (value));
 275         break;
 276       case PROP_BACKGROUND_SET:
 277         view->priv->background_set = g_value_get_boolean (value);
 278         break;
 279       case PROP_MODEL:
 280         gtk_cell_view_set_model (view, g_value_get_object (value));
 281         break;
 282     default:
 283         G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec);
 284         break;
 285     }
 286 }
 287
 288 static void
 289 gtk_cell_view_init (GtkCellView *cellview)
 290 {
 291   GTK_WIDGET_SET_FLAGS (cellview, GTK_NO_WINDOW);
 292
 293   cellview->priv = GTK_CELL_VIEW_GET_PRIVATE (cellview);
 294 }
 295
 296 static void
 297 gtk_cell_view_finalize (GObject *object)
 298 {
 299   GtkCellView *cellview = GTK_CELL_VIEW (object);
 300
 301   gtk_cell_view_cell_layout_clear (GTK_CELL_LAYOUT (cellview));
 302
 303   if (cellview->priv->model)
 304      g_object_unref (cellview->priv->model);
 305
 306   if (cellview->priv->displayed_row)
 307      gtk_tree_row_reference_free (cellview->priv->displayed_row);
 308
 309   (* G_OBJECT_CLASS (gtk_cell_view_parent_class)->finalize) (object);
 310 }
 311
 312 static void
 313 gtk_cell_view_size_request (GtkWidget      *widget,
 314                             GtkRequisition *requisition)
 315 {
 316   GList *i;
 317   gboolean first_cell = TRUE;
 318   GtkCellView *cellview;
 319
 320   cellview = GTK_CELL_VIEW (widget);
 321
 322   requisition->width = 0;
 323   requisition->height = 0;
 324
 325   if (cellview->priv->displayed_row)
 326     gtk_cell_view_set_cell_data (cellview);
 327
 328   for (i = cellview->priv->cell_list; i; i = i->next)
 329     {
 330       gint width, height;
 331       GtkCellViewCellInfo *info = (GtkCellViewCellInfo *)i->data;
 332
 333       if (!info->cell->visible)
 334         continue;
 335
 336       if (!first_cell)
 337         requisition->width += cellview->priv->spacing;
 338
 339       gtk_cell_renderer_get_size (info->cell, widget, NULL, NULL, NULL,
 340                                   &width, &height);
 341
 342       info->requested_width = width;
 343       requisition->width += width;
 344       requisition->height = MAX (requisition->height, height);
 345
 346       first_cell = FALSE;
 347     }
 348 }
 349
 350 static void
 351 gtk_cell_view_size_allocate (GtkWidget     *widget,
 352                              GtkAllocation *allocation)
 353 {
 354   GList *i;
 355   gint expand_cell_count = 0;
 356   gint full_requested_width = 0;
 357   gint extra_space;
 358   GtkCellView *cellview;
 359
 360   widget->allocation = *allocation;
 361
 362   cellview = GTK_CELL_VIEW (widget);
 363
 364   /* checking how much extra space we have */
 365   for (i = cellview->priv->cell_list; i; i = i->next)
 366     {
 367       GtkCellViewCellInfo *info = (GtkCellViewCellInfo *)i->data;
 368
 369       if (!info->cell->visible)
 370         continue;
 371
 372       if (info->expand)
 373         expand_cell_count++;
 374
 375       full_requested_width += info->requested_width;
 376     }
 377
 378   extra_space = widget->allocation.width - full_requested_width;
 379   if (extra_space < 0)
 380     extra_space = 0;
 381   else if (extra_space > 0 && expand_cell_count > 0)
 382     extra_space /= expand_cell_count;
 383
 384   /* iterate list for PACK_START cells */
 385   for (i = cellview->priv->cell_list; i; i = i->next)
 386     {
 387       GtkCellViewCellInfo *info = (GtkCellViewCellInfo *)i->data;
 388
 389       if (info->pack == GTK_PACK_END)
 390         continue;
 391
 392       if (!info->cell->visible)
 393         continue;
 394
 395       info->real_width = info->requested_width + (info->expand?extra_space:0);
 396     }
 397
 398   /* iterate list for PACK_END cells */
 399   for (i = cellview->priv->cell_list; i; i = i->next)
 400     {
 401       GtkCellViewCellInfo *info = (GtkCellViewCellInfo *)i->data;
 402
 403       if (info->pack == GTK_PACK_START)
 404         continue;
 405
 406       if (!info->cell->visible)
 407         continue;
 408
 409       info->real_width = info->requested_width + (info->expand?extra_space:0);
 410     }
 411 }
 412
 413 static gboolean
 414 gtk_cell_view_expose (GtkWidget      *widget,
 415                       GdkEventExpose *event)
 416 {
 417   GList *i;
 418   GtkCellView *cellview;
 419   GdkRectangle area;
 420   GtkCellRendererState state;
 421   gboolean rtl = (gtk_widget_get_direction(widget) == GTK_TEXT_DIR_RTL);
 422
 423   cellview = GTK_CELL_VIEW (widget);
 424
 425   if (! GTK_WIDGET_DRAWABLE (widget))
 426     return FALSE;
 427
 428   /* "blank" background */
 429   if (cellview->priv->background_set)
 430     {
 431       cairo_t *cr = gdk_cairo_create (GTK_WIDGET (cellview)->window);
 432
 433       gdk_cairo_rectangle (cr, &widget->allocation);
 434       cairo_set_source_rgb (cr,
 435                             cellview->priv->background.red / 65535.,
 436                             cellview->priv->background.green / 65535.,
 437                             cellview->priv->background.blue / 65535.);
 438       cairo_fill (cr);
 439
 440       cairo_destroy (cr);
 441     }
 442
 443   /* set cell data (if available) */
 444   if (cellview->priv->displayed_row)
 445     gtk_cell_view_set_cell_data (cellview);
 446   else if (cellview->priv->model)
 447     return FALSE;
 448
 449   /* render cells */
 450   area = widget->allocation;
 451
 452   /* we draw on our very own window, initialize x and y to zero */
 453   area.x = widget->allocation.x + (rtl ? widget->allocation.width : 0);
 454   area.y = widget->allocation.y;
 455
 456   if (GTK_WIDGET_STATE (widget) == GTK_STATE_PRELIGHT)
 457     state = GTK_CELL_RENDERER_PRELIT;
 458   else
 459     state = 0;
 460
 461   /* PACK_START */
 462   for (i = cellview->priv->cell_list; i; i = i->next)
 463     {
 464       GtkCellViewCellInfo *info = (GtkCellViewCellInfo *)i->data;
 465
 466       if (info->pack == GTK_PACK_END)
 467         continue;
 468
 469       if (!info->cell->visible)
 470         continue;
 471
 472       area.width = info->real_width;
 473       if (rtl)
 474          area.x -= area.width;
 475
 476       gtk_cell_renderer_render (info->cell,
 477                                 event->window,
 478                                 widget,
 479                                 /* FIXME! */
 480                                 &area, &area, &event->area, state);
 481
 482       if (!rtl)
 483          area.x += info->real_width;
 484     }
 485
 486    area.x = rtl ? widget->allocation.x : (widget->allocation.x + widget->allocation.width);
 487
 488   /* PACK_END */
 489   for (i = cellview->priv->cell_list; i; i = i->next)
 490     {
 491       GtkCellViewCellInfo *info = (GtkCellViewCellInfo *)i->data;
 492
 493       if (info->pack == GTK_PACK_START)
 494         continue;
 495
 496       if (!info->cell->visible)
 497         continue;
 498
 499       area.width = info->real_width;
 500       if (!rtl)
 501          area.x -= area.width;
 502
 503       gtk_cell_renderer_render (info->cell,
 504                                 widget->window,
 505                                 widget,
 506                                 /* FIXME ! */
 507                                 &area, &area, &event->area, state);
 508       if (rtl)
 509          area.x += info->real_width;
 510     }
 511
 512   return FALSE;
 513 }
 514
 515 static GtkCellViewCellInfo *
 516 gtk_cell_view_get_cell_info (GtkCellView     *cellview,
 517                              GtkCellRenderer *renderer)
 518 {
 519   GList *i;
 520
 521   for (i = cellview->priv->cell_list; i; i = i->next)
 522     {
 523       GtkCellViewCellInfo *info = (GtkCellViewCellInfo *)i->data;
 524
 525       if (info->cell == renderer)
 526         return info;
 527     }
 528
 529   return NULL;
 530 }
 531
 532 static void
 533 gtk_cell_view_set_cell_data (GtkCellView *cell_view)
 534 {
 535   GList *i;
 536   GtkTreeIter iter;
 537   GtkTreePath *path;
 538
 539   g_return_if_fail (cell_view->priv->displayed_row != NULL);
 540
 541   path = gtk_tree_row_reference_get_path (cell_view->priv->displayed_row);
 542   if (!path)
 543     return;
 544
 545   gtk_tree_model_get_iter (cell_view->priv->model, &iter, path);
 546   gtk_tree_path_free (path);
 547
 548   for (i = cell_view->priv->cell_list; i; i = i->next)
 549     {
 550       GSList *j;
 551       GtkCellViewCellInfo *info = i->data;
 552
 553       g_object_freeze_notify (G_OBJECT (info->cell));
 554
 555       for (j = info->attributes; j && j->next; j = j->next->next)
 556         {
 557           gchar *property = j->data;
 558           gint column = GPOINTER_TO_INT (j->next->data);
 559           GValue value = {0, };
 560
 561           gtk_tree_model_get_value (cell_view->priv->model, &iter,
 562                                     column, &value);
 563           g_object_set_property (G_OBJECT (info->cell),
 564                                  property, &value);
 565           g_value_unset (&value);
 566         }
 567
 568       if (info->func)
 569         (* info->func) (GTK_CELL_LAYOUT (cell_view),
 570                         info->cell,
 571                         cell_view->priv->model,
 572                         &iter,
 573                         info->func_data);
 574
 575       g_object_thaw_notify (G_OBJECT (info->cell));
 576     }
 577 }
 578
 579 /* GtkCellLayout implementation */
 580 static void
 581 gtk_cell_view_cell_layout_pack_start (GtkCellLayout   *layout,
 582                                       GtkCellRenderer *renderer,
 583                                       gboolean         expand)
 584 {
 585   GtkCellViewCellInfo *info;
 586   GtkCellView *cellview = GTK_CELL_VIEW (layout);
 587
 588   g_return_if_fail (!gtk_cell_view_get_cell_info (cellview, renderer));
 589
 590   g_object_ref_sink (renderer);
 591
 592   info = g_slice_new0 (GtkCellViewCellInfo);
 593   info->cell = renderer;
 594   info->expand = expand ? TRUE : FALSE;
 595   info->pack = GTK_PACK_START;
 596
 597   cellview->priv->cell_list = g_list_append (cellview->priv->cell_list, info);
 598 }
 599
 600 static void
 601 gtk_cell_view_cell_layout_pack_end (GtkCellLayout   *layout,
 602                                     GtkCellRenderer *renderer,
 603                                     gboolean         expand)
 604 {
 605   GtkCellViewCellInfo *info;
 606   GtkCellView *cellview = GTK_CELL_VIEW (layout);
 607
 608   g_return_if_fail (!gtk_cell_view_get_cell_info (cellview, renderer));
 609
 610   g_object_ref_sink (renderer);
 611
 612   info = g_slice_new0 (GtkCellViewCellInfo);
 613   info->cell = renderer;
 614   info->expand = expand ? TRUE : FALSE;
 615   info->pack = GTK_PACK_END;
 616
 617   cellview->priv->cell_list = g_list_append (cellview->priv->cell_list, info);
 618 }
 619
 620 static void
 621 gtk_cell_view_cell_layout_add_attribute (GtkCellLayout   *layout,
 622                                          GtkCellRenderer *renderer,
 623                                          const gchar     *attribute,
 624                                          gint             column)
 625 {
 626   GtkCellViewCellInfo *info;
 627   GtkCellView *cellview = GTK_CELL_VIEW (layout);
 628
 629   info = gtk_cell_view_get_cell_info (cellview, renderer);
 630   g_return_if_fail (info != NULL);
 631
 632   info->attributes = g_slist_prepend (info->attributes,
 633                                       GINT_TO_POINTER (column));
 634   info->attributes = g_slist_prepend (info->attributes,
 635                                       g_strdup (attribute));
 636 }
 637
 638 static void
 639 gtk_cell_view_cell_layout_clear (GtkCellLayout *layout)
 640 {
 641   GtkCellView *cellview = GTK_CELL_VIEW (layout);
 642
 643   while (cellview->priv->cell_list)
 644     {
 645       GtkCellViewCellInfo *info = (GtkCellViewCellInfo *)cellview->priv->cell_list->data;
 646
 647       gtk_cell_view_cell_layout_clear_attributes (layout, info->cell);
 648       g_object_unref (info->cell);
 649       g_slice_free (GtkCellViewCellInfo, info);
 650       cellview->priv->cell_list = g_list_delete_link (cellview->priv->cell_list,
 651                                                       cellview->priv->cell_list);
 652     }
 653 }
 654
 655 static void
 656 gtk_cell_view_cell_layout_set_cell_data_func (GtkCellLayout         *layout,
 657                                               GtkCellRenderer       *cell,
 658                                               GtkCellLayoutDataFunc  func,
 659                                               gpointer               func_data,
 660                                               GDestroyNotify         destroy)
 661 {
 662   GtkCellView *cellview = GTK_CELL_VIEW (layout);
 663   GtkCellViewCellInfo *info;
 664
 665   info = gtk_cell_view_get_cell_info (cellview, cell);
 666   g_return_if_fail (info != NULL);
 667
 668   if (info->destroy)
 669     {
 670       GDestroyNotify d = info->destroy;
 671
 672       info->destroy = NULL;
 673       d (info->func_data);
 674     }
 675
 676   info->func = func;
 677   info->func_data = func_data;
 678   info->destroy = destroy;
 679 }
 680
 681 static void
 682 gtk_cell_view_cell_layout_clear_attributes (GtkCellLayout   *layout,
 683                                             GtkCellRenderer *renderer)
 684 {
 685   GtkCellView *cellview = GTK_CELL_VIEW (layout);
 686   GtkCellViewCellInfo *info;
 687   GSList *list;
 688
 689   info = gtk_cell_view_get_cell_info (cellview, renderer);
 690   if (info != NULL)
 691     {
 692       list = info->attributes;
 693       while (list && list->next)
 694         {
 695           g_free (list->data);
 696           list = list->next->next;
 697         }
 698
 699       g_slist_free (info->attributes);
 700       info->attributes = NULL;
 701     }
 702 }
 703
 704 static void
 705 gtk_cell_view_cell_layout_reorder (GtkCellLayout   *layout,
 706                                    GtkCellRenderer *cell,
 707                                    gint             position)
 708 {
 709   GtkCellView *cellview = GTK_CELL_VIEW (layout);
 710   GtkCellViewCellInfo *info;
 711   GList *link;
 712
 713   info = gtk_cell_view_get_cell_info (cellview, cell);
 714
 715   g_return_if_fail (info != NULL);
 716   g_return_if_fail (position >= 0);
 717
 718   link = g_list_find (cellview->priv->cell_list, info);
 719
 720   g_return_if_fail (link != NULL);
 721
 722   cellview->priv->cell_list = g_list_delete_link (cellview->priv->cell_list,
 723                                                   link);
 724   cellview->priv->cell_list = g_list_insert (cellview->priv->cell_list,
 725                                              info, position);
 726
 727   gtk_widget_queue_draw (GTK_WIDGET (cellview));
 728 }
 729
 730 /**
 731  * gtk_cell_view_new:
 732  *
 733  * Creates a new #GtkCellView widget.
 734  *
 735  * Return value: A newly created #GtkCellView widget.
 736  *
 737  * Since: 2.6
 738  */
 739 GtkWidget *
 740 gtk_cell_view_new (void)
 741 {
 742   GtkCellView *cellview;
 743
 744   cellview = g_object_new (gtk_cell_view_get_type (), NULL);
 745
 746   return GTK_WIDGET (cellview);
 747 }
 748
 749 /**
 750  * gtk_cell_view_new_with_text:
 751  * @text: the text to display in the cell view
 752  *
 753  * Creates a new #GtkCellView widget, adds a #GtkCellRendererText
 754  * to it, and makes its show @text.
 755  *
 756  * Return value: A newly created #GtkCellView widget.
 757  *
 758  * Since: 2.6
 759  */
 760 GtkWidget *
 761 gtk_cell_view_new_with_text (const gchar *text)
 762 {
 763   GtkCellView *cellview;
 764   GtkCellRenderer *renderer;
 765   GValue value = {0, };
 766
 767   cellview = GTK_CELL_VIEW (gtk_cell_view_new ());
 768
 769   renderer = gtk_cell_renderer_text_new ();
 770   gtk_cell_view_cell_layout_pack_start (GTK_CELL_LAYOUT (cellview),
 771                                         renderer, TRUE);
 772
 773   g_value_init (&value, G_TYPE_STRING);
 774   g_value_set_string (&value, text);
 775   gtk_cell_view_set_value (cellview, renderer, "text", &value);
 776   g_value_unset (&value);
 777
 778   return GTK_WIDGET (cellview);
 779 }
 780
 781 /**
 782  * gtk_cell_view_new_with_markup:
 783  * @markup: the text to display in the cell view
 784  *
 785  * Creates a new #GtkCellView widget, adds a #GtkCellRendererText
 786  * to it, and makes its show @markup. The text can text can be
 787  * marked up with the <link linkend="PangoMarkupFormat">Pango text
 788  * markup language</link>.
 789  *
 790  * Return value: A newly created #GtkCellView widget.
 791  *
 792  * Since: 2.6
 793  */
 794 GtkWidget *
 795 gtk_cell_view_new_with_markup (const gchar *markup)
 796 {
 797   GtkCellView *cellview;
 798   GtkCellRenderer *renderer;
 799   GValue value = {0, };
 800
 801   cellview = GTK_CELL_VIEW (gtk_cell_view_new ());
 802
 803   renderer = gtk_cell_renderer_text_new ();
 804   gtk_cell_view_cell_layout_pack_start (GTK_CELL_LAYOUT (cellview),
 805                                         renderer, TRUE);
 806
 807   g_value_init (&value, G_TYPE_STRING);
 808   g_value_set_string (&value, markup);
 809   gtk_cell_view_set_value (cellview, renderer, "markup", &value);
 810   g_value_unset (&value);
 811
 812   return GTK_WIDGET (cellview);
 813 }
 814
 815 /**
 816  * gtk_cell_view_new_with_pixbuf:
 817  * @pixbuf: the image to display in the cell view
 818  *
 819  * Creates a new #GtkCellView widget, adds a #GtkCellRendererPixbuf
 820  * to it, and makes its show @pixbuf.
 821  *
 822  * Return value: A newly created #GtkCellView widget.
 823  *
 824  * Since: 2.6
 825  */
 826 GtkWidget *
 827 gtk_cell_view_new_with_pixbuf (GdkPixbuf *pixbuf)
 828 {
 829   GtkCellView *cellview;
 830   GtkCellRenderer *renderer;
 831   GValue value = {0, };
 832
 833   cellview = GTK_CELL_VIEW (gtk_cell_view_new ());
 834
 835   renderer = gtk_cell_renderer_pixbuf_new ();
 836   gtk_cell_view_cell_layout_pack_start (GTK_CELL_LAYOUT (cellview),
 837                                         renderer, TRUE);
 838
 839   g_value_init (&value, GDK_TYPE_PIXBUF);
 840   g_value_set_object (&value, pixbuf);
 841   gtk_cell_view_set_value (cellview, renderer, "pixbuf", &value);
 842   g_value_unset (&value);
 843
 844   return GTK_WIDGET (cellview);
 845 }
 846
 847 /**
 848  * gtk_cell_view_set_value:
 849  * @cell_view: a #GtkCellView widget
 850  * @renderer: one of the renderers of @cell_view
 851  * @property: the name of the property of @renderer to set
 852  * @value: the new value to set the property to
 853  *
 854  * Sets a property of a cell renderer of @cell_view, and
 855  * makes sure the display of @cell_view is updated.
 856  *
 857  * Since: 2.6
 858  */
 859 static void
 860 gtk_cell_view_set_value (GtkCellView     *cell_view,
 861                          GtkCellRenderer *renderer,
 862                          gchar           *property,
 863                          GValue          *value)
 864 {
 865   g_object_set_property (G_OBJECT (renderer), property, value);
 866
 867   /* force resize and redraw */
 868   gtk_widget_queue_resize (GTK_WIDGET (cell_view));
 869   gtk_widget_queue_draw (GTK_WIDGET (cell_view));
 870 }
 871
 872 /**
 873  * gtk_cell_view_set_model:
 874  * @cell_view: a #GtkCellView
 875  * @model: a #GtkTreeModel
 876  *
 877  * Sets the model for @cell_view.  If @cell_view already has a model
 878  * set, it will remove it before setting the new model.  If @model is
 879  * %NULL, then it will unset the old model.
 880  *
 881  * Since: 2.6
 882  */
 883 void
 884 gtk_cell_view_set_model (GtkCellView  *cell_view,
 885                          GtkTreeModel *model)
 886 {
 887   g_return_if_fail (GTK_IS_CELL_VIEW (cell_view));
 888   g_return_if_fail (model == NULL || GTK_IS_TREE_MODEL (model));
 889
 890   if (cell_view->priv->model)
 891     {
 892       if (cell_view->priv->displayed_row)
 893         gtk_tree_row_reference_free (cell_view->priv->displayed_row);
 894       cell_view->priv->displayed_row = NULL;
 895
 896       g_object_unref (cell_view->priv->model);
 897       cell_view->priv->model = NULL;
 898     }
 899
 900   cell_view->priv->model = model;
 901
 902   if (cell_view->priv->model)
 903     g_object_ref (cell_view->priv->model);
 904 }
 905
 906 /**
 907  * gtk_cell_view_set_displayed_row:
 908  * @cell_view: a #GtkCellView
 909  * @path: a #GtkTreePath or %NULL to unset.
 910  *
 911  * Sets the row of the model that is currently displayed
 912  * by the #GtkCellView. If the path is unset, then the
 913  * contents of the cellview "stick" at their last value;
 914  * this is not normally a desired result, but may be
 915  * a needed intermediate state if say, the model for
 916  * the #GtkCellView becomes temporarily empty.
 917  *
 918  * Since: 2.6
 919  **/
 920 void
 921 gtk_cell_view_set_displayed_row (GtkCellView *cell_view,
 922                                  GtkTreePath *path)
 923 {
 924   g_return_if_fail (GTK_IS_CELL_VIEW (cell_view));
 925   g_return_if_fail (GTK_IS_TREE_MODEL (cell_view->priv->model));
 926
 927   if (cell_view->priv->displayed_row)
 928     gtk_tree_row_reference_free (cell_view->priv->displayed_row);
 929
 930   if (path)
 931     {
 932       cell_view->priv->displayed_row =
 933         gtk_tree_row_reference_new (cell_view->priv->model, path);
 934     }
 935   else
 936     cell_view->priv->displayed_row = NULL;
 937
 938   /* force resize and redraw */
 939   gtk_widget_queue_resize (GTK_WIDGET (cell_view));
 940   gtk_widget_queue_draw (GTK_WIDGET (cell_view));
 941 }
 942
 943 /**
 944  * gtk_cell_view_get_displayed_row:
 945  * @cell_view: a #GtkCellView
 946  *
 947  * Returns a #GtkTreePath referring to the currently
 948  * displayed row. If no row is currently displayed,
 949  * %NULL is returned.
 950  *
 951  * Returns: the currently displayed row or %NULL
 952  *
 953  * Since: 2.6
 954  */
 955 GtkTreePath *
 956 gtk_cell_view_get_displayed_row (GtkCellView *cell_view)
 957 {
 958   g_return_val_if_fail (GTK_IS_CELL_VIEW (cell_view), NULL);
 959
 960   if (!cell_view->priv->displayed_row)
 961     return NULL;
 962
 963   return gtk_tree_row_reference_get_path (cell_view->priv->displayed_row);
 964 }
 965
 966 /**
 967  * gtk_cell_view_get_size_of_row:
 968  * @cell_view: a #GtkCellView
 969  * @path: a #GtkTreePath
 970  * @requisition: return location for the size
 971  *
 972  * Sets @requisition to the size needed by @cell_view to display
 973  * the model row pointed to by @path.
 974  *
 975  * Return value: %TRUE
 976  *
 977  * Since: 2.6
 978  */
 979 gboolean
 980 gtk_cell_view_get_size_of_row (GtkCellView    *cell_view,
 981                                GtkTreePath    *path,
 982                                GtkRequisition *requisition)
 983 {
 984   GtkTreeRowReference *tmp;
 985   GtkRequisition req;
 986
 987   g_return_val_if_fail (GTK_IS_CELL_VIEW (cell_view), FALSE);
 988   g_return_val_if_fail (path != NULL, FALSE);
 989   g_return_val_if_fail (requisition != NULL, FALSE);
 990
 991   tmp = cell_view->priv->displayed_row;
 992   cell_view->priv->displayed_row =
 993     gtk_tree_row_reference_new (cell_view->priv->model, path);
 994
 995   gtk_cell_view_size_request (GTK_WIDGET (cell_view), requisition);
 996
 997   gtk_tree_row_reference_free (cell_view->priv->displayed_row);
 998   cell_view->priv->displayed_row = tmp;
 999
1000   /* restore actual size info */
1001   gtk_cell_view_size_request (GTK_WIDGET (cell_view), &req);
1002
1003   return TRUE;
1004 }
1005
1006 /**
1007  * gtk_cell_view_set_background_color:
1008  * @cell_view: a #GtkCellView
1009  * @color: the new background color
1010  *
1011  * Sets the background color of @view.
1012  *
1013  * Since: 2.6
1014  */
1015 void
1016 gtk_cell_view_set_background_color (GtkCellView    *cell_view,
1017                                     const GdkColor *color)
1018 {
1019   g_return_if_fail (GTK_IS_CELL_VIEW (cell_view));
1020
1021   if (color)
1022     {
1023       if (!cell_view->priv->background_set)
1024         {
1025           cell_view->priv->background_set = TRUE;
1026           g_object_notify (G_OBJECT (cell_view), "background-set");
1027         }
1028
1029       cell_view->priv->background = *color;
1030     }
1031   else
1032     {
1033       if (cell_view->priv->background_set)
1034         {
1035           cell_view->priv->background_set = FALSE;
1036           g_object_notify (G_OBJECT (cell_view), "background-set");
1037         }
1038     }
1039
1040   gtk_widget_queue_draw (GTK_WIDGET (cell_view));
1041 }
1042
1043 /**
1044  * gtk_cell_view_get_cell_renderers:
1045  * @cell_view: a #GtkCellView
1046  *
1047  * Returns the cell renderers which have been added to @cell_view.
1048  *
1049  * Return value: a list of cell renderers. The list, but not the
1050  *   renderers has been newly allocated and should be freed with
1051  *   g_list_free() when no longer needed.
1052  *
1053  * Since: 2.6
1054  */
1055 GList *
1056 gtk_cell_view_get_cell_renderers (GtkCellView *cell_view)
1057 {
1058   GList *retval = NULL, *list;
1059
1060   g_return_val_if_fail (cell_view != NULL, NULL);
1061
1062   gtk_cell_view_set_cell_data (cell_view);
1063
1064   for (list = cell_view->priv->cell_list; list; list = list->next)
1065     {
1066       GtkCellViewCellInfo *info = (GtkCellViewCellInfo *)list->data;
1067
1068       retval = g_list_prepend (retval, info->cell);
1069     }
1070
1071   return g_list_reverse (retval);
1072 }
1073
1074 static GList *
1075 gtk_cell_view_cell_layout_get_cells (GtkCellLayout *layout)
1076 {
1077   return gtk_cell_view_get_cell_renderers (GTK_CELL_VIEW (layout));
1078 }
1079
1080
1081 static gboolean
1082 gtk_cell_view_buildable_custom_tag_start (GtkBuildable  *buildable,
1083                                           GtkBuilder    *builder,
1084                                           GObject       *child,
1085                                           const gchar   *tagname,
1086                                           GMarkupParser *parser,
1087                                           gpointer      *data)
1088 {
1089   if (parent_buildable_iface->custom_tag_start &&
1090       parent_buildable_iface->custom_tag_start (buildable, builder, child,
1091                                                 tagname, parser, data))
1092     return TRUE;
1093
1094   return _gtk_cell_layout_buildable_custom_tag_start (buildable, builder, child,
1095                                                       tagname, parser, data);
1096 }
1097
1098 static void
1099 gtk_cell_view_buildable_custom_tag_end (GtkBuildable *buildable,
1100                                         GtkBuilder   *builder,
1101                                         GObject      *child,
1102                                         const gchar  *tagname,
1103                                         gpointer     *data)
1104 {
1105   if (strcmp (tagname, "attributes") == 0)
1106     _gtk_cell_layout_buildable_custom_tag_end (buildable, builder, child, tagname,
1107                                                data);
1108   else if (parent_buildable_iface->custom_tag_end)
1109     parent_buildable_iface->custom_tag_end (buildable, builder, child, tagname,
1110                                             data);
1111 }
1112
1113
1114 #define __GTK_CELL_VIEW_C__
1115 #include "gtkaliasdef.c"