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_class_init               (GtkCellViewClass *klass);
  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_init                     (GtkCellView      *cellview);
  71 static void        gtk_cell_view_finalize                 (GObject          *object);
  72 static void        gtk_cell_view_style_set                (GtkWidget        *widget,
  73                                                            GtkStyle         *previous_style);
  74 static void        gtk_cell_view_size_request             (GtkWidget        *widget,
  75                                                            GtkRequisition   *requisition);
  76 static void        gtk_cell_view_size_allocate            (GtkWidget        *widget,
  77                                                            GtkAllocation    *allocation);
  78 static gboolean    gtk_cell_view_expose                   (GtkWidget        *widget,
  79                                                            GdkEventExpose   *event);
  80 static void        gtk_cell_view_set_value                (GtkCellView     *cell_view,
  81                                                            GtkCellRenderer *renderer,
  82                                                            gchar           *property,
  83                                                            GValue          *value);
  84 static GtkCellViewCellInfo *gtk_cell_view_get_cell_info   (GtkCellView      *cellview,
  85                                                            GtkCellRenderer  *renderer);
  86 static void        gtk_cell_view_set_cell_data            (GtkCellView      *cell_view);
  87
  88
  89 static void        gtk_cell_view_cell_layout_pack_start        (GtkCellLayout         *layout,
  90                                                                 GtkCellRenderer       *renderer,
  91                                                                 gboolean               expand);
  92 static void        gtk_cell_view_cell_layout_pack_end          (GtkCellLayout         *layout,
  93                                                                 GtkCellRenderer       *renderer,
  94                                                                 gboolean               expand);
  95 static void        gtk_cell_view_cell_layout_add_attribute     (GtkCellLayout         *layout,
  96                                                                 GtkCellRenderer       *renderer,
  97                                                                 const gchar           *attribute,
  98                                                                 gint                   column);
  99 static void       gtk_cell_view_cell_layout_clear              (GtkCellLayout         *layout);
 100 static void       gtk_cell_view_cell_layout_clear_attributes   (GtkCellLayout         *layout,
 101                                                                 GtkCellRenderer       *renderer);
 102 static void       gtk_cell_view_cell_layout_set_cell_data_func (GtkCellLayout         *layout,
 103                                                                 GtkCellRenderer       *cell,
 104                                                                 GtkCellLayoutDataFunc  func,
 105                                                                 gpointer               func_data,
 106                                                                 GDestroyNotify         destroy);
 107 static void       gtk_cell_view_cell_layout_reorder            (GtkCellLayout         *layout,
 108                                                                 GtkCellRenderer       *cell,
 109                                                                 gint                   position);
 110
 111
 112 #define GTK_CELL_VIEW_GET_PRIVATE(obj)    (G_TYPE_INSTANCE_GET_PRIVATE ((obj), GTK_TYPE_CELL_VIEW, GtkCellViewPrivate))
 113
 114 enum
 115 {
 116   PROP_0,
 117   PROP_BACKGROUND,
 118   PROP_BACKGROUND_GDK,
 119   PROP_BACKGROUND_SET
 120 };
 121
 122 static GtkObjectClass *parent_class = NULL;
 123
 124
 125 GType
 126 gtk_cell_view_get_type (void)
 127 {
 128   static GType cell_view_type = 0;
 129
 130   if (!cell_view_type)
 131     {
 132       static const GTypeInfo cell_view_info =
 133         {
 134           sizeof (GtkCellViewClass),
 135           NULL, /* base_init */
 136           NULL, /* base_finalize */
 137           (GClassInitFunc) gtk_cell_view_class_init,
 138           NULL, /* class_finalize */
 139           NULL, /* class_data */
 140           sizeof (GtkCellView),
 141           0,
 142           (GInstanceInitFunc) gtk_cell_view_init
 143         };
 144
 145       static const GInterfaceInfo cell_layout_info =
 146        {
 147          (GInterfaceInitFunc) gtk_cell_view_cell_layout_init,
 148          NULL,
 149          NULL
 150        };
 151
 152       cell_view_type = g_type_register_static (GTK_TYPE_WIDGET, g_intern_static_string ("GtkCellView"),
 153                                                &cell_view_info, 0);
 154
 155       g_type_add_interface_static (cell_view_type, GTK_TYPE_CELL_LAYOUT,
 156                                    &cell_layout_info);
 157     }
 158
 159   return cell_view_type;
 160 }
 161
 162 static void
 163 gtk_cell_view_class_init (GtkCellViewClass *klass)
 164 {
 165   GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
 166   GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
 167
 168   parent_class = g_type_class_peek_parent (klass);
 169
 170   gobject_class->get_property = gtk_cell_view_get_property;
 171   gobject_class->set_property = gtk_cell_view_set_property;
 172   gobject_class->finalize = gtk_cell_view_finalize;
 173
 174   widget_class->expose_event = gtk_cell_view_expose;
 175   widget_class->size_allocate = gtk_cell_view_size_allocate;
 176   widget_class->size_request = gtk_cell_view_size_request;
 177   widget_class->style_set = gtk_cell_view_style_set;
 178
 179   /* properties */
 180   g_object_class_install_property (gobject_class,
 181                                    PROP_BACKGROUND,
 182                                    g_param_spec_string ("background",
 183                                                         P_("Background color name"),
 184                                                         P_("Background color as a string"),
 185                                                         NULL,
 186                                                         GTK_PARAM_WRITABLE));
 187   g_object_class_install_property (gobject_class,
 188                                    PROP_BACKGROUND_GDK,
 189                                    g_param_spec_boxed ("background-gdk",
 190                                                       P_("Background color"),
 191                                                       P_("Background color as a GdkColor"),
 192                                                       GDK_TYPE_COLOR,
 193                                                       GTK_PARAM_READWRITE));
 194
 195 #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))
 196
 197   ADD_SET_PROP ("background-set", PROP_BACKGROUND_SET,
 198                 P_("Background set"),
 199                 P_("Whether this tag affects the background color"));
 200
 201   g_type_class_add_private (gobject_class, sizeof (GtkCellViewPrivate));
 202 }
 203
 204 static void
 205 gtk_cell_view_cell_layout_init (GtkCellLayoutIface *iface)
 206 {
 207   iface->pack_start = gtk_cell_view_cell_layout_pack_start;
 208   iface->pack_end = gtk_cell_view_cell_layout_pack_end;
 209   iface->clear = gtk_cell_view_cell_layout_clear;
 210   iface->add_attribute = gtk_cell_view_cell_layout_add_attribute;
 211   iface->set_cell_data_func = gtk_cell_view_cell_layout_set_cell_data_func;
 212   iface->clear_attributes = gtk_cell_view_cell_layout_clear_attributes;
 213   iface->reorder = gtk_cell_view_cell_layout_reorder;
 214 }
 215
 216 static void
 217 gtk_cell_view_get_property (GObject    *object,
 218                             guint       param_id,
 219                             GValue     *value,
 220                             GParamSpec *pspec)
 221 {
 222   GtkCellView *view = GTK_CELL_VIEW (object);
 223
 224   switch (param_id)
 225     {
 226       case PROP_BACKGROUND_GDK:
 227         {
 228           GdkColor color;
 229
 230           color = view->priv->background;
 231
 232           g_value_set_boxed (value, &color);
 233         }
 234         break;
 235       case PROP_BACKGROUND_SET:
 236         g_value_set_boolean (value, view->priv->background_set);
 237         break;
 238       default:
 239         G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec);
 240         break;
 241     }
 242 }
 243
 244 static void
 245 gtk_cell_view_set_property (GObject      *object,
 246                             guint         param_id,
 247                             const GValue *value,
 248                             GParamSpec   *pspec)
 249 {
 250   GtkCellView *view = GTK_CELL_VIEW (object);
 251
 252   switch (param_id)
 253     {
 254       case PROP_BACKGROUND:
 255         {
 256           GdkColor color;
 257
 258           if (!g_value_get_string (value))
 259             gtk_cell_view_set_background_color (view, NULL);
 260           else if (gdk_color_parse (g_value_get_string (value), &color))
 261             gtk_cell_view_set_background_color (view, &color);
 262           else
 263             g_warning ("Don't know color `%s'", g_value_get_string (value));
 264
 265           g_object_notify (object, "background-gdk");
 266         }
 267         break;
 268       case PROP_BACKGROUND_GDK:
 269         gtk_cell_view_set_background_color (view, g_value_get_boxed (value));
 270         break;
 271       case PROP_BACKGROUND_SET:
 272         view->priv->background_set = g_value_get_boolean (value);
 273         break;
 274       default:
 275         G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec);
 276         break;
 277     }
 278 }
 279
 280 static void
 281 gtk_cell_view_init (GtkCellView *cellview)
 282 {
 283   GTK_WIDGET_SET_FLAGS (cellview, GTK_NO_WINDOW);
 284
 285   cellview->priv = GTK_CELL_VIEW_GET_PRIVATE (cellview);
 286 }
 287
 288 static void
 289 gtk_cell_view_style_set (GtkWidget *widget,
 290                          GtkStyle  *previous_style)
 291 {
 292   if (previous_style && GTK_WIDGET_REALIZED (widget))
 293     gdk_window_set_background (widget->window,
 294                                &widget->style->base[GTK_WIDGET_STATE (widget)]);
 295 }
 296
 297 static void
 298 gtk_cell_view_finalize (GObject *object)
 299 {
 300   GtkCellView *cellview = GTK_CELL_VIEW (object);
 301
 302   gtk_cell_view_cell_layout_clear (GTK_CELL_LAYOUT (cellview));
 303
 304   if (cellview->priv->model)
 305      g_object_unref (cellview->priv->model);
 306
 307   if (cellview->priv->displayed_row)
 308      gtk_tree_row_reference_free (cellview->priv->displayed_row);
 309
 310   (* G_OBJECT_CLASS (parent_class)->finalize) (object);
 311 }
 312
 313 static void
 314 gtk_cell_view_size_request (GtkWidget      *widget,
 315                             GtkRequisition *requisition)
 316 {
 317   GList *i;
 318   gboolean first_cell = TRUE;
 319   GtkCellView *cellview;
 320
 321   cellview = GTK_CELL_VIEW (widget);
 322
 323   requisition->width = 0;
 324   requisition->height = 0;
 325
 326   if (cellview->priv->displayed_row)
 327     gtk_cell_view_set_cell_data (cellview);
 328
 329   for (i = cellview->priv->cell_list; i; i = i->next)
 330     {
 331       gint width, height;
 332       GtkCellViewCellInfo *info = (GtkCellViewCellInfo *)i->data;
 333
 334       if (!info->cell->visible)
 335         continue;
 336
 337       if (!first_cell)
 338         requisition->width += cellview->priv->spacing;
 339
 340       gtk_cell_renderer_get_size (info->cell, widget, NULL, NULL, NULL,
 341                                   &width, &height);
 342
 343       info->requested_width = width;
 344       requisition->width += width;
 345       requisition->height = MAX (requisition->height, height);
 346
 347       first_cell = FALSE;
 348     }
 349 }
 350
 351 static void
 352 gtk_cell_view_size_allocate (GtkWidget     *widget,
 353                              GtkAllocation *allocation)
 354 {
 355   GList *i;
 356   gint expand_cell_count = 0;
 357   gint full_requested_width = 0;
 358   gint extra_space;
 359   GtkCellView *cellview;
 360
 361   widget->allocation = *allocation;
 362
 363   cellview = GTK_CELL_VIEW (widget);
 364
 365   /* checking how much extra space we have */
 366   for (i = cellview->priv->cell_list; i; i = i->next)
 367     {
 368       GtkCellViewCellInfo *info = (GtkCellViewCellInfo *)i->data;
 369
 370       if (!info->cell->visible)
 371         continue;
 372
 373       if (info->expand)
 374         expand_cell_count++;
 375
 376       full_requested_width += info->requested_width;
 377     }
 378
 379   extra_space = widget->allocation.width - full_requested_width;
 380   if (extra_space < 0)
 381     extra_space = 0;
 382   else if (extra_space > 0 && expand_cell_count > 0)
 383     extra_space /= expand_cell_count;
 384
 385   /* iterate list for PACK_START cells */
 386   for (i = cellview->priv->cell_list; i; i = i->next)
 387     {
 388       GtkCellViewCellInfo *info = (GtkCellViewCellInfo *)i->data;
 389
 390       if (info->pack == GTK_PACK_END)
 391         continue;
 392
 393       if (!info->cell->visible)
 394         continue;
 395
 396       info->real_width = info->requested_width + (info->expand?extra_space:0);
 397     }
 398
 399   /* iterate list for PACK_END cells */
 400   for (i = cellview->priv->cell_list; i; i = i->next)
 401     {
 402       GtkCellViewCellInfo *info = (GtkCellViewCellInfo *)i->data;
 403
 404       if (info->pack == GTK_PACK_START)
 405         continue;
 406
 407       if (!info->cell->visible)
 408         continue;
 409
 410       info->real_width = info->requested_width + (info->expand?extra_space:0);
 411     }
 412 }
 413
 414 static gboolean
 415 gtk_cell_view_expose (GtkWidget      *widget,
 416                       GdkEventExpose *event)
 417 {
 418   GList *i;
 419   GtkCellView *cellview;
 420   GdkRectangle area;
 421   GtkCellRendererState state;
 422   gboolean rtl = (gtk_widget_get_direction(widget) == GTK_TEXT_DIR_RTL);
 423
 424   cellview = GTK_CELL_VIEW (widget);
 425
 426   if (! GTK_WIDGET_DRAWABLE (widget))
 427     return FALSE;
 428
 429   /* "blank" background */
 430   if (cellview->priv->background_set)
 431     {
 432       cairo_t *cr = gdk_cairo_create (GTK_WIDGET (cellview)->window);
 433
 434       gdk_cairo_rectangle (cr, &widget->allocation);
 435       cairo_set_source_rgb (cr,
 436                             cellview->priv->background.red / 65535.,
 437                             cellview->priv->background.green / 65535.,
 438                             cellview->priv->background.blue / 65535.);
 439       cairo_fill (cr);
 440
 441       cairo_destroy (cr);
 442     }
 443
 444   /* set cell data (if available) */
 445   if (cellview->priv->displayed_row)
 446     gtk_cell_view_set_cell_data (cellview);
 447   else if (cellview->priv->model)
 448     return FALSE;
 449
 450   /* render cells */
 451   area = widget->allocation;
 452
 453   /* we draw on our very own window, initialize x and y to zero */
 454   area.x = widget->allocation.x + (rtl ? widget->allocation.width : 0);
 455   area.y = widget->allocation.y;
 456
 457   if (GTK_WIDGET_STATE (widget) == GTK_STATE_PRELIGHT)
 458     state = GTK_CELL_RENDERER_PRELIT;
 459   else
 460     state = 0;
 461
 462   /* PACK_START */
 463   for (i = cellview->priv->cell_list; i; i = i->next)
 464     {
 465       GtkCellViewCellInfo *info = (GtkCellViewCellInfo *)i->data;
 466
 467       if (info->pack == GTK_PACK_END)
 468         continue;
 469
 470       if (!info->cell->visible)
 471         continue;
 472
 473       area.width = info->real_width;
 474       if (rtl)
 475          area.x -= area.width;
 476
 477       gtk_cell_renderer_render (info->cell,
 478                                 event->window,
 479                                 widget,
 480                                 /* FIXME! */
 481                                 &area, &area, &event->area, state);
 482
 483       if (!rtl)
 484          area.x += info->real_width;
 485     }
 486
 487    area.x = rtl ? widget->allocation.x : (widget->allocation.x + widget->allocation.width);
 488
 489   /* PACK_END */
 490   for (i = cellview->priv->cell_list; i; i = i->next)
 491     {
 492       GtkCellViewCellInfo *info = (GtkCellViewCellInfo *)i->data;
 493
 494       if (info->pack == GTK_PACK_START)
 495         continue;
 496
 497       if (!info->cell->visible)
 498         continue;
 499
 500       area.width = info->real_width;
 501       if (!rtl)
 502          area.x -= area.width;
 503
 504       gtk_cell_renderer_render (info->cell,
 505                                 widget->window,
 506                                 widget,
 507                                 /* FIXME ! */
 508                                 &area, &area, &event->area, state);
 509       if (rtl)
 510          area.x += info->real_width;
 511     }
 512
 513   return FALSE;
 514 }
 515
 516 static GtkCellViewCellInfo *
 517 gtk_cell_view_get_cell_info (GtkCellView     *cellview,
 518                              GtkCellRenderer *renderer)
 519 {
 520   GList *i;
 521
 522   for (i = cellview->priv->cell_list; i; i = i->next)
 523     {
 524       GtkCellViewCellInfo *info = (GtkCellViewCellInfo *)i->data;
 525
 526       if (info->cell == renderer)
 527         return info;
 528     }
 529
 530   return NULL;
 531 }
 532
 533 static void
 534 gtk_cell_view_set_cell_data (GtkCellView *cell_view)
 535 {
 536   GList *i;
 537   GtkTreeIter iter;
 538   GtkTreePath *path;
 539
 540   g_return_if_fail (cell_view->priv->displayed_row != NULL);
 541
 542   path = gtk_tree_row_reference_get_path (cell_view->priv->displayed_row);
 543   if (!path)
 544     return;
 545
 546   gtk_tree_model_get_iter (cell_view->priv->model, &iter, path);
 547   gtk_tree_path_free (path);
 548
 549   for (i = cell_view->priv->cell_list; i; i = i->next)
 550     {
 551       GSList *j;
 552       GtkCellViewCellInfo *info = i->data;
 553
 554       g_object_freeze_notify (G_OBJECT (info->cell));
 555
 556       for (j = info->attributes; j && j->next; j = j->next->next)
 557         {
 558           gchar *property = j->data;
 559           gint column = GPOINTER_TO_INT (j->next->data);
 560           GValue value = {0, };
 561
 562           gtk_tree_model_get_value (cell_view->priv->model, &iter,
 563                                     column, &value);
 564           g_object_set_property (G_OBJECT (info->cell),
 565                                  property, &value);
 566           g_value_unset (&value);
 567         }
 568
 569       if (info->func)
 570         (* info->func) (GTK_CELL_LAYOUT (cell_view),
 571                         info->cell,
 572                         cell_view->priv->model,
 573                         &iter,
 574                         info->func_data);
 575
 576       g_object_thaw_notify (G_OBJECT (info->cell));
 577     }
 578 }
 579
 580 /* GtkCellLayout implementation */
 581 static void
 582 gtk_cell_view_cell_layout_pack_start (GtkCellLayout   *layout,
 583                                       GtkCellRenderer *renderer,
 584                                       gboolean         expand)
 585 {
 586   GtkCellViewCellInfo *info;
 587   GtkCellView *cellview = GTK_CELL_VIEW (layout);
 588
 589   g_return_if_fail (GTK_IS_CELL_VIEW (cellview));
 590   g_return_if_fail (GTK_IS_CELL_RENDERER (renderer));
 591   g_return_if_fail (!gtk_cell_view_get_cell_info (cellview, renderer));
 592
 593   g_object_ref (renderer);
 594   gtk_object_sink (GTK_OBJECT (renderer));
 595
 596   info = g_new0 (GtkCellViewCellInfo, 1);
 597   info->cell = renderer;
 598   info->expand = expand ? TRUE : FALSE;
 599   info->pack = GTK_PACK_START;
 600
 601   cellview->priv->cell_list = g_list_append (cellview->priv->cell_list, info);
 602 }
 603
 604 static void
 605 gtk_cell_view_cell_layout_pack_end (GtkCellLayout   *layout,
 606                                     GtkCellRenderer *renderer,
 607                                     gboolean         expand)
 608 {
 609   GtkCellViewCellInfo *info;
 610   GtkCellView *cellview = GTK_CELL_VIEW (layout);
 611
 612   g_return_if_fail (GTK_IS_CELL_VIEW (cellview));
 613   g_return_if_fail (GTK_IS_CELL_RENDERER (renderer));
 614   g_return_if_fail (!gtk_cell_view_get_cell_info (cellview, renderer));
 615
 616   g_object_ref (renderer);
 617   gtk_object_sink (GTK_OBJECT (renderer));
 618
 619   info = g_new0 (GtkCellViewCellInfo, 1);
 620   info->cell = renderer;
 621   info->expand = expand ? TRUE : FALSE;
 622   info->pack = GTK_PACK_END;
 623
 624   cellview->priv->cell_list = g_list_append (cellview->priv->cell_list, info);
 625 }
 626
 627 static void
 628 gtk_cell_view_cell_layout_add_attribute (GtkCellLayout   *layout,
 629                                          GtkCellRenderer *renderer,
 630                                          const gchar     *attribute,
 631                                          gint             column)
 632 {
 633   GtkCellViewCellInfo *info;
 634   GtkCellView *cellview = GTK_CELL_VIEW (layout);
 635
 636   g_return_if_fail (GTK_IS_CELL_VIEW (cellview));
 637   info = gtk_cell_view_get_cell_info (cellview, renderer);
 638   g_return_if_fail (info != NULL);
 639
 640   info->attributes = g_slist_prepend (info->attributes,
 641                                       GINT_TO_POINTER (column));
 642   info->attributes = g_slist_prepend (info->attributes,
 643                                       g_strdup (attribute));
 644 }
 645
 646 static void
 647 gtk_cell_view_cell_layout_clear (GtkCellLayout *layout)
 648 {
 649   GtkCellView *cellview = GTK_CELL_VIEW (layout);
 650
 651   g_return_if_fail (GTK_IS_CELL_VIEW (cellview));
 652
 653   while (cellview->priv->cell_list)
 654     {
 655       GtkCellViewCellInfo *info = (GtkCellViewCellInfo *)cellview->priv->cell_list->data;
 656
 657       gtk_cell_view_cell_layout_clear_attributes (layout, info->cell);
 658       g_object_unref (info->cell);
 659       g_free (info);
 660       cellview->priv->cell_list = g_list_delete_link (cellview->priv->cell_list,
 661                                                       cellview->priv->cell_list);
 662     }
 663 }
 664
 665 static void
 666 gtk_cell_view_cell_layout_set_cell_data_func (GtkCellLayout         *layout,
 667                                               GtkCellRenderer       *cell,
 668                                               GtkCellLayoutDataFunc  func,
 669                                               gpointer               func_data,
 670                                               GDestroyNotify         destroy)
 671 {
 672   GtkCellView *cellview = GTK_CELL_VIEW (layout);
 673   GtkCellViewCellInfo *info;
 674
 675   g_return_if_fail (GTK_IS_CELL_VIEW (cellview));
 676
 677   info = gtk_cell_view_get_cell_info (cellview, cell);
 678   g_return_if_fail (info != NULL);
 679
 680   if (info->destroy)
 681     {
 682       GDestroyNotify d = info->destroy;
 683
 684       info->destroy = NULL;
 685       d (info->func_data);
 686     }
 687
 688   info->func = func;
 689   info->func_data = func_data;
 690   info->destroy = destroy;
 691 }
 692
 693 static void
 694 gtk_cell_view_cell_layout_clear_attributes (GtkCellLayout   *layout,
 695                                             GtkCellRenderer *renderer)
 696 {
 697   GtkCellViewCellInfo *info;
 698   GtkCellView *cellview = GTK_CELL_VIEW (layout);
 699   GSList *list;
 700
 701   g_return_if_fail (GTK_IS_CELL_VIEW (cellview));
 702   g_return_if_fail (GTK_IS_CELL_RENDERER (renderer));
 703
 704   info = gtk_cell_view_get_cell_info (cellview, renderer);
 705   if (info != NULL)
 706     {
 707       list = info->attributes;
 708       while (list && list->next)
 709         {
 710           g_free (list->data);
 711           list = list->next->next;
 712         }
 713
 714       g_slist_free (info->attributes);
 715       info->attributes = NULL;
 716     }
 717 }
 718
 719 static void
 720 gtk_cell_view_cell_layout_reorder (GtkCellLayout   *layout,
 721                                    GtkCellRenderer *cell,
 722                                    gint             position)
 723 {
 724   GList *link;
 725   GtkCellViewCellInfo *info;
 726   GtkCellView *cellview = GTK_CELL_VIEW (layout);
 727
 728   g_return_if_fail (GTK_IS_CELL_VIEW (cellview));
 729   g_return_if_fail (GTK_IS_CELL_RENDERER (cell));
 730
 731   info = gtk_cell_view_get_cell_info (cellview, cell);
 732
 733   g_return_if_fail (info != NULL);
 734   g_return_if_fail (position >= 0);
 735
 736   link = g_list_find (cellview->priv->cell_list, info);
 737
 738   g_return_if_fail (link != NULL);
 739
 740   cellview->priv->cell_list = g_list_remove_link (cellview->priv->cell_list,
 741                                                   link);
 742   cellview->priv->cell_list = g_list_insert (cellview->priv->cell_list,
 743                                              info, position);
 744
 745   gtk_widget_queue_draw (GTK_WIDGET (cellview));
 746 }
 747
 748 /**
 749  * gtk_cell_view_new:
 750  *
 751  * Creates a new #GtkCellView widget.
 752  *
 753  * Return value: A newly created #GtkCellView widget.
 754  *
 755  * Since: 2.6
 756  */
 757 GtkWidget *
 758 gtk_cell_view_new (void)
 759 {
 760   GtkCellView *cellview;
 761
 762   cellview = g_object_new (gtk_cell_view_get_type (), NULL);
 763
 764   return GTK_WIDGET (cellview);
 765 }
 766
 767 /**
 768  * gtk_cell_view_new_with_text:
 769  * @text: the text to display in the cell view
 770  *
 771  * Creates a new #GtkCellView widget, adds a #GtkCellRendererText
 772  * to it, and makes its show @text.
 773  *
 774  * Return value: A newly created #GtkCellView widget.
 775  *
 776  * Since: 2.6
 777  */
 778 GtkWidget *
 779 gtk_cell_view_new_with_text (const gchar *text)
 780 {
 781   GtkCellView *cellview;
 782   GtkCellRenderer *renderer;
 783   GValue value = {0, };
 784
 785   cellview = GTK_CELL_VIEW (gtk_cell_view_new ());
 786
 787   renderer = gtk_cell_renderer_text_new ();
 788   gtk_cell_view_cell_layout_pack_start (GTK_CELL_LAYOUT (cellview),
 789                                         renderer, TRUE);
 790
 791   g_value_init (&value, G_TYPE_STRING);
 792   g_value_set_string (&value, text);
 793   gtk_cell_view_set_value (cellview, renderer, "text", &value);
 794   g_value_unset (&value);
 795
 796   return GTK_WIDGET (cellview);
 797 }
 798
 799 /**
 800  * gtk_cell_view_new_with_markup:
 801  * @markup: the text to display in the cell view
 802  *
 803  * Creates a new #GtkCellView widget, adds a #GtkCellRendererText
 804  * to it, and makes its show @markup. The text can text can be
 805  * marked up with the <link linkend="PangoMarkupFormat">Pango text
 806  * markup language</link>.
 807  *
 808  * Return value: A newly created #GtkCellView widget.
 809  *
 810  * Since: 2.6
 811  */
 812 GtkWidget *
 813 gtk_cell_view_new_with_markup (const gchar *markup)
 814 {
 815   GtkCellView *cellview;
 816   GtkCellRenderer *renderer;
 817   GValue value = {0, };
 818
 819   cellview = GTK_CELL_VIEW (gtk_cell_view_new ());
 820
 821   renderer = gtk_cell_renderer_text_new ();
 822   gtk_cell_view_cell_layout_pack_start (GTK_CELL_LAYOUT (cellview),
 823                                         renderer, TRUE);
 824
 825   g_value_init (&value, G_TYPE_STRING);
 826   g_value_set_string (&value, markup);
 827   gtk_cell_view_set_value (cellview, renderer, "markup", &value);
 828   g_value_unset (&value);
 829
 830   return GTK_WIDGET (cellview);
 831 }
 832
 833 /**
 834  * gtk_cell_view_new_with_pixbuf:
 835  * @pixbuf: the image to display in the cell view
 836  *
 837  * Creates a new #GtkCellView widget, adds a #GtkCellRendererPixbuf
 838  * to it, and makes its show @pixbuf.
 839  *
 840  * Return value: A newly created #GtkCellView widget.
 841  *
 842  * Since: 2.6
 843  */
 844 GtkWidget *
 845 gtk_cell_view_new_with_pixbuf (GdkPixbuf *pixbuf)
 846 {
 847   GtkCellView *cellview;
 848   GtkCellRenderer *renderer;
 849   GValue value = {0, };
 850
 851   cellview = GTK_CELL_VIEW (gtk_cell_view_new ());
 852
 853   renderer = gtk_cell_renderer_pixbuf_new ();
 854   gtk_cell_view_cell_layout_pack_start (GTK_CELL_LAYOUT (cellview),
 855                                         renderer, TRUE);
 856
 857   g_value_init (&value, GDK_TYPE_PIXBUF);
 858   g_value_set_object (&value, pixbuf);
 859   gtk_cell_view_set_value (cellview, renderer, "pixbuf", &value);
 860   g_value_unset (&value);
 861
 862   return GTK_WIDGET (cellview);
 863 }
 864
 865 /**
 866  * gtk_cell_view_set_value:
 867  * @cell_view: a #GtkCellView widget
 868  * @renderer: one of the renderers of @cell_view
 869  * @property: the name of the property of @renderer to set
 870  * @value: the new value to set the property to
 871  *
 872  * Sets a property of a cell renderer of @cell_view, and
 873  * makes sure the display of @cell_view is updated.
 874  *
 875  * Since: 2.6
 876  */
 877 static void
 878 gtk_cell_view_set_value (GtkCellView     *cell_view,
 879                          GtkCellRenderer *renderer,
 880                          gchar           *property,
 881                          GValue          *value)
 882 {
 883   g_return_if_fail (GTK_IS_CELL_VIEW (cell_view));
 884   g_return_if_fail (GTK_IS_CELL_RENDERER (renderer));
 885
 886   g_object_set_property (G_OBJECT (renderer), property, value);
 887
 888   /* force resize and redraw */
 889   gtk_widget_queue_resize (GTK_WIDGET (cell_view));
 890   gtk_widget_queue_draw (GTK_WIDGET (cell_view));
 891 }
 892
 893 /**
 894  * gtk_cell_view_set_model:
 895  * @cell_view: a #GtkCellView
 896  * @model: a #GtkTreeModel
 897  *
 898  * Sets the model for @cell_view.  If @cell_view already has a model
 899  * set, it will remove it before setting the new model.  If @model is
 900  * %NULL, then it will unset the old model.
 901  *
 902  * Since: 2.6
 903  */
 904 void
 905 gtk_cell_view_set_model (GtkCellView  *cell_view,
 906                          GtkTreeModel *model)
 907 {
 908   g_return_if_fail (GTK_IS_CELL_VIEW (cell_view));
 909   g_return_if_fail (GTK_IS_TREE_MODEL (model));
 910
 911   if (cell_view->priv->model)
 912     {
 913       if (cell_view->priv->displayed_row)
 914         gtk_tree_row_reference_free (cell_view->priv->displayed_row);
 915       cell_view->priv->displayed_row = NULL;
 916
 917       g_object_unref (cell_view->priv->model);
 918       cell_view->priv->model = NULL;
 919     }
 920
 921   cell_view->priv->model = model;
 922
 923   if (cell_view->priv->model)
 924     g_object_ref (cell_view->priv->model);
 925 }
 926
 927 /**
 928  * gtk_cell_view_set_displayed_row:
 929  * @cell_view: a #GtkCellView
 930  * @path: a #GtkTreePath or %NULL to unset.
 931  *
 932  * Sets the row of the model that is currently displayed
 933  * by the #GtkCellView. If the path is unset, then the
 934  * contents of the cellview "stick" at their last value;
 935  * this is not normally a desired result, but may be
 936  * a needed intermediate state if say, the model for
 937  * the #GtkCellView becomes temporarily empty.
 938  *
 939  * Since: 2.6
 940  **/
 941 void
 942 gtk_cell_view_set_displayed_row (GtkCellView *cell_view,
 943                                  GtkTreePath *path)
 944 {
 945   g_return_if_fail (GTK_IS_CELL_VIEW (cell_view));
 946   g_return_if_fail (GTK_IS_TREE_MODEL (cell_view->priv->model));
 947
 948   if (cell_view->priv->displayed_row)
 949     gtk_tree_row_reference_free (cell_view->priv->displayed_row);
 950
 951   if (path)
 952     {
 953       cell_view->priv->displayed_row =
 954         gtk_tree_row_reference_new (cell_view->priv->model, path);
 955     }
 956   else
 957     cell_view->priv->displayed_row = NULL;
 958
 959   /* force resize and redraw */
 960   gtk_widget_queue_resize (GTK_WIDGET (cell_view));
 961   gtk_widget_queue_draw (GTK_WIDGET (cell_view));
 962 }
 963
 964 /**
 965  * gtk_cell_view_get_displayed_row:
 966  * @cell_view: a #GtkCellView
 967  *
 968  * Returns a #GtkTreePath referring to the currently
 969  * displayed row. If no row is currently displayed,
 970  * %NULL is returned.
 971  *
 972  * Returns: the currently displayed row or %NULL
 973  *
 974  * Since: 2.6
 975  */
 976 GtkTreePath *
 977 gtk_cell_view_get_displayed_row (GtkCellView *cell_view)
 978 {
 979   g_return_val_if_fail (GTK_IS_CELL_VIEW (cell_view), NULL);
 980
 981   if (!cell_view->priv->displayed_row)
 982     return NULL;
 983
 984   return gtk_tree_row_reference_get_path (cell_view->priv->displayed_row);
 985 }
 986
 987 /**
 988  * gtk_cell_view_get_size_of_row:
 989  * @cell_view: a #GtkCellView
 990  * @path: a #GtkTreePath
 991  * @requisition: return location for the size
 992  *
 993  * Sets @requisition to the size needed by @cell_view to display
 994  * the model row pointed to by @path.
 995  *
 996  * Return value: %TRUE
 997  *
 998  * Since: 2.6
 999  */
1000 gboolean
1001 gtk_cell_view_get_size_of_row (GtkCellView    *cell_view,
1002                                GtkTreePath    *path,
1003                                GtkRequisition *requisition)
1004 {
1005   GtkTreeRowReference *tmp;
1006   GtkRequisition req;
1007
1008   g_return_val_if_fail (GTK_IS_CELL_VIEW (cell_view), FALSE);
1009   g_return_val_if_fail (path != NULL, FALSE);
1010   g_return_val_if_fail (requisition != NULL, FALSE);
1011
1012   tmp = cell_view->priv->displayed_row;
1013   cell_view->priv->displayed_row =
1014     gtk_tree_row_reference_new (cell_view->priv->model, path);
1015
1016   gtk_cell_view_size_request (GTK_WIDGET (cell_view), requisition);
1017
1018   gtk_tree_row_reference_free (cell_view->priv->displayed_row);
1019   cell_view->priv->displayed_row = tmp;
1020
1021   /* restore actual size info */
1022   gtk_cell_view_size_request (GTK_WIDGET (cell_view), &req);
1023
1024   return TRUE;
1025 }
1026
1027 /**
1028  * gtk_cell_view_set_background_color:
1029  * @cell_view: a #GtkCellView
1030  * @color: the new background color
1031  *
1032  * Sets the background color of @view.
1033  *
1034  * Since: 2.6
1035  */
1036 void
1037 gtk_cell_view_set_background_color (GtkCellView    *cell_view,
1038                                     const GdkColor *color)
1039 {
1040   g_return_if_fail (GTK_IS_CELL_VIEW (cell_view));
1041
1042   if (color)
1043     {
1044       if (!cell_view->priv->background_set)
1045         {
1046           cell_view->priv->background_set = TRUE;
1047           g_object_notify (G_OBJECT (cell_view), "background-set");
1048         }
1049
1050       cell_view->priv->background = *color;
1051     }
1052   else
1053     {
1054       if (cell_view->priv->background_set)
1055         {
1056           cell_view->priv->background_set = FALSE;
1057           g_object_notify (G_OBJECT (cell_view), "background-set");
1058         }
1059     }
1060
1061   gtk_widget_queue_draw (GTK_WIDGET (cell_view));
1062 }
1063
1064 /**
1065  * gtk_cell_view_get_cell_renderers:
1066  * @cell_view: a #GtkCellView
1067  *
1068  * Returns the cell renderers which have been added to @cell_view.
1069  *
1070  * Return value: a list of cell renderers. The list, but not the
1071  *   renderers has been newly allocated and should be freed with
1072  *   g_list_free() when no longer needed.
1073  *
1074  * Since: 2.6
1075  */
1076 GList *
1077 gtk_cell_view_get_cell_renderers (GtkCellView *cell_view)
1078 {
1079   GList *retval = NULL, *list;
1080
1081   g_return_val_if_fail (cell_view != NULL, NULL);
1082
1083   gtk_cell_view_set_cell_data (cell_view);
1084
1085   for (list = cell_view->priv->cell_list; list; list = list->next)
1086     {
1087       GtkCellViewCellInfo *info = (GtkCellViewCellInfo *)list->data;
1088
1089       retval = g_list_prepend (retval, info->cell);
1090     }
1091
1092   return g_list_reverse (retval);
1093 }
1094
1095 #define __GTK_CELL_VIEW_C__
1096 #include "gtkaliasdef.c"