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, "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       GdkGC *gc;
 433
 434       gc = gdk_gc_new (GTK_WIDGET (cellview)->window);
 435       gdk_gc_set_rgb_fg_color (gc, &cellview->priv->background);
 436
 437       gdk_draw_rectangle (GTK_WIDGET (cellview)->window,
 438                           gc,
 439                           TRUE,
 440
 441                           /*0, 0,*/
 442                           widget->allocation.x,
 443                           widget->allocation.y,
 444
 445                           widget->allocation.width,
 446                           widget->allocation.height);
 447
 448       g_object_unref (gc);
 449     }
 450
 451   /* set cell data (if available) */
 452   if (cellview->priv->displayed_row)
 453     gtk_cell_view_set_cell_data (cellview);
 454   else if (cellview->priv->model)
 455     return FALSE;
 456
 457   /* render cells */
 458   area = widget->allocation;
 459
 460   /* we draw on our very own window, initialize x and y to zero */
 461   area.x = widget->allocation.x + (rtl ? widget->allocation.width : 0);
 462   area.y = widget->allocation.y;
 463
 464   if (GTK_WIDGET_STATE (widget) == GTK_STATE_PRELIGHT)
 465     state = GTK_CELL_RENDERER_PRELIT;
 466   else
 467     state = 0;
 468
 469   /* PACK_START */
 470   for (i = cellview->priv->cell_list; i; i = i->next)
 471     {
 472       GtkCellViewCellInfo *info = (GtkCellViewCellInfo *)i->data;
 473
 474       if (info->pack == GTK_PACK_END)
 475         continue;
 476
 477       if (!info->cell->visible)
 478         continue;
 479
 480       area.width = info->real_width;
 481       if (rtl)
 482          area.x -= area.width;
 483
 484       gtk_cell_renderer_render (info->cell,
 485                                 event->window,
 486                                 widget,
 487                                 /* FIXME! */
 488                                 &area, &area, &event->area, state);
 489
 490       if (!rtl)
 491          area.x += info->real_width;
 492     }
 493
 494    area.x = rtl ? widget->allocation.x : (widget->allocation.x + widget->allocation.width);
 495
 496   /* PACK_END */
 497   for (i = cellview->priv->cell_list; i; i = i->next)
 498     {
 499       GtkCellViewCellInfo *info = (GtkCellViewCellInfo *)i->data;
 500
 501       if (info->pack == GTK_PACK_START)
 502         continue;
 503
 504       if (!info->cell->visible)
 505         continue;
 506
 507       area.width = info->real_width;
 508       if (!rtl)
 509          area.x -= area.width;
 510
 511       gtk_cell_renderer_render (info->cell,
 512                                 widget->window,
 513                                 widget,
 514                                 /* FIXME ! */
 515                                 &area, &area, &event->area, state);
 516       if (rtl)
 517          area.x += info->real_width;
 518     }
 519
 520   return FALSE;
 521 }
 522
 523 static GtkCellViewCellInfo *
 524 gtk_cell_view_get_cell_info (GtkCellView     *cellview,
 525                              GtkCellRenderer *renderer)
 526 {
 527   GList *i;
 528
 529   for (i = cellview->priv->cell_list; i; i = i->next)
 530     {
 531       GtkCellViewCellInfo *info = (GtkCellViewCellInfo *)i->data;
 532
 533       if (info->cell == renderer)
 534         return info;
 535     }
 536
 537   return NULL;
 538 }
 539
 540 static void
 541 gtk_cell_view_set_cell_data (GtkCellView *cell_view)
 542 {
 543   GList *i;
 544   GtkTreeIter iter;
 545   GtkTreePath *path;
 546
 547   g_return_if_fail (cell_view->priv->displayed_row != NULL);
 548
 549   path = gtk_tree_row_reference_get_path (cell_view->priv->displayed_row);
 550   if (!path)
 551     return;
 552
 553   gtk_tree_model_get_iter (cell_view->priv->model, &iter, path);
 554   gtk_tree_path_free (path);
 555
 556   for (i = cell_view->priv->cell_list; i; i = i->next)
 557     {
 558       GSList *j;
 559       GtkCellViewCellInfo *info = i->data;
 560
 561       g_object_freeze_notify (G_OBJECT (info->cell));
 562
 563       for (j = info->attributes; j && j->next; j = j->next->next)
 564         {
 565           gchar *property = j->data;
 566           gint column = GPOINTER_TO_INT (j->next->data);
 567           GValue value = {0, };
 568
 569           gtk_tree_model_get_value (cell_view->priv->model, &iter,
 570                                     column, &value);
 571           g_object_set_property (G_OBJECT (info->cell),
 572                                  property, &value);
 573           g_value_unset (&value);
 574         }
 575
 576       if (info->func)
 577         (* info->func) (GTK_CELL_LAYOUT (cell_view),
 578                         info->cell,
 579                         cell_view->priv->model,
 580                         &iter,
 581                         info->func_data);
 582
 583       g_object_thaw_notify (G_OBJECT (info->cell));
 584     }
 585 }
 586
 587 /* GtkCellLayout implementation */
 588 static void
 589 gtk_cell_view_cell_layout_pack_start (GtkCellLayout   *layout,
 590                                       GtkCellRenderer *renderer,
 591                                       gboolean         expand)
 592 {
 593   GtkCellViewCellInfo *info;
 594   GtkCellView *cellview = GTK_CELL_VIEW (layout);
 595
 596   g_return_if_fail (GTK_IS_CELL_VIEW (cellview));
 597   g_return_if_fail (GTK_IS_CELL_RENDERER (renderer));
 598   g_return_if_fail (!gtk_cell_view_get_cell_info (cellview, renderer));
 599
 600   g_object_ref (renderer);
 601   gtk_object_sink (GTK_OBJECT (renderer));
 602
 603   info = g_new0 (GtkCellViewCellInfo, 1);
 604   info->cell = renderer;
 605   info->expand = expand ? TRUE : FALSE;
 606   info->pack = GTK_PACK_START;
 607
 608   cellview->priv->cell_list = g_list_append (cellview->priv->cell_list, info);
 609 }
 610
 611 static void
 612 gtk_cell_view_cell_layout_pack_end (GtkCellLayout   *layout,
 613                                     GtkCellRenderer *renderer,
 614                                     gboolean         expand)
 615 {
 616   GtkCellViewCellInfo *info;
 617   GtkCellView *cellview = GTK_CELL_VIEW (layout);
 618
 619   g_return_if_fail (GTK_IS_CELL_VIEW (cellview));
 620   g_return_if_fail (GTK_IS_CELL_RENDERER (renderer));
 621   g_return_if_fail (!gtk_cell_view_get_cell_info (cellview, renderer));
 622
 623   g_object_ref (renderer);
 624   gtk_object_sink (GTK_OBJECT (renderer));
 625
 626   info = g_new0 (GtkCellViewCellInfo, 1);
 627   info->cell = renderer;
 628   info->expand = expand ? TRUE : FALSE;
 629   info->pack = GTK_PACK_END;
 630
 631   cellview->priv->cell_list = g_list_append (cellview->priv->cell_list, info);
 632 }
 633
 634 static void
 635 gtk_cell_view_cell_layout_add_attribute (GtkCellLayout   *layout,
 636                                          GtkCellRenderer *renderer,
 637                                          const gchar     *attribute,
 638                                          gint             column)
 639 {
 640   GtkCellViewCellInfo *info;
 641   GtkCellView *cellview = GTK_CELL_VIEW (layout);
 642
 643   g_return_if_fail (GTK_IS_CELL_VIEW (cellview));
 644   info = gtk_cell_view_get_cell_info (cellview, renderer);
 645   g_return_if_fail (info != NULL);
 646
 647   info->attributes = g_slist_prepend (info->attributes,
 648                                       GINT_TO_POINTER (column));
 649   info->attributes = g_slist_prepend (info->attributes,
 650                                       g_strdup (attribute));
 651 }
 652
 653 static void
 654 gtk_cell_view_cell_layout_clear (GtkCellLayout *layout)
 655 {
 656   GtkCellView *cellview = GTK_CELL_VIEW (layout);
 657
 658   g_return_if_fail (GTK_IS_CELL_VIEW (cellview));
 659
 660   while (cellview->priv->cell_list)
 661     {
 662       GtkCellViewCellInfo *info = (GtkCellViewCellInfo *)cellview->priv->cell_list->data;
 663
 664       gtk_cell_view_cell_layout_clear_attributes (layout, info->cell);
 665       g_object_unref (info->cell);
 666       g_free (info);
 667       cellview->priv->cell_list = g_list_delete_link (cellview->priv->cell_list,
 668                                                       cellview->priv->cell_list);
 669     }
 670 }
 671
 672 static void
 673 gtk_cell_view_cell_layout_set_cell_data_func (GtkCellLayout         *layout,
 674                                               GtkCellRenderer       *cell,
 675                                               GtkCellLayoutDataFunc  func,
 676                                               gpointer               func_data,
 677                                               GDestroyNotify         destroy)
 678 {
 679   GtkCellView *cellview = GTK_CELL_VIEW (layout);
 680   GtkCellViewCellInfo *info;
 681
 682   g_return_if_fail (GTK_IS_CELL_VIEW (cellview));
 683
 684   info = gtk_cell_view_get_cell_info (cellview, cell);
 685   g_return_if_fail (info != NULL);
 686
 687   if (info->destroy)
 688     {
 689       GDestroyNotify d = info->destroy;
 690
 691       info->destroy = NULL;
 692       d (info->func_data);
 693     }
 694
 695   info->func = func;
 696   info->func_data = func_data;
 697   info->destroy = destroy;
 698 }
 699
 700 static void
 701 gtk_cell_view_cell_layout_clear_attributes (GtkCellLayout   *layout,
 702                                             GtkCellRenderer *renderer)
 703 {
 704   GtkCellViewCellInfo *info;
 705   GtkCellView *cellview = GTK_CELL_VIEW (layout);
 706   GSList *list;
 707
 708   g_return_if_fail (GTK_IS_CELL_VIEW (cellview));
 709   g_return_if_fail (GTK_IS_CELL_RENDERER (renderer));
 710
 711   info = gtk_cell_view_get_cell_info (cellview, renderer);
 712   if (info != NULL)
 713     {
 714       list = info->attributes;
 715       while (list && list->next)
 716         {
 717           g_free (list->data);
 718           list = list->next->next;
 719         }
 720
 721       g_slist_free (info->attributes);
 722       info->attributes = NULL;
 723     }
 724 }
 725
 726 static void
 727 gtk_cell_view_cell_layout_reorder (GtkCellLayout   *layout,
 728                                    GtkCellRenderer *cell,
 729                                    gint             position)
 730 {
 731   GList *link;
 732   GtkCellViewCellInfo *info;
 733   GtkCellView *cellview = GTK_CELL_VIEW (layout);
 734
 735   g_return_if_fail (GTK_IS_CELL_VIEW (cellview));
 736   g_return_if_fail (GTK_IS_CELL_RENDERER (cell));
 737
 738   info = gtk_cell_view_get_cell_info (cellview, cell);
 739
 740   g_return_if_fail (info != NULL);
 741   g_return_if_fail (position >= 0);
 742
 743   link = g_list_find (cellview->priv->cell_list, info);
 744
 745   g_return_if_fail (link != NULL);
 746
 747   cellview->priv->cell_list = g_list_remove_link (cellview->priv->cell_list,
 748                                                   link);
 749   cellview->priv->cell_list = g_list_insert (cellview->priv->cell_list,
 750                                              info, position);
 751
 752   gtk_widget_queue_draw (GTK_WIDGET (cellview));
 753 }
 754
 755 /**
 756  * gtk_cell_view_new:
 757  *
 758  * Creates a new #GtkCellView widget.
 759  *
 760  * Return value: A newly created #GtkCellView widget.
 761  *
 762  * Since: 2.6
 763  */
 764 GtkWidget *
 765 gtk_cell_view_new (void)
 766 {
 767   GtkCellView *cellview;
 768
 769   cellview = g_object_new (gtk_cell_view_get_type (), NULL);
 770
 771   return GTK_WIDGET (cellview);
 772 }
 773
 774 /**
 775  * gtk_cell_view_new_with_text:
 776  * @text: the text to display in the cell view
 777  *
 778  * Creates a new #GtkCellView widget, adds a #GtkCellRendererText
 779  * to it, and makes its show @text.
 780  *
 781  * Return value: A newly created #GtkCellView widget.
 782  *
 783  * Since: 2.6
 784  */
 785 GtkWidget *
 786 gtk_cell_view_new_with_text (const gchar *text)
 787 {
 788   GtkCellView *cellview;
 789   GtkCellRenderer *renderer;
 790   GValue value = {0, };
 791
 792   cellview = GTK_CELL_VIEW (gtk_cell_view_new ());
 793
 794   renderer = gtk_cell_renderer_text_new ();
 795   gtk_cell_view_cell_layout_pack_start (GTK_CELL_LAYOUT (cellview),
 796                                         renderer, TRUE);
 797
 798   g_value_init (&value, G_TYPE_STRING);
 799   g_value_set_string (&value, text);
 800   gtk_cell_view_set_value (cellview, renderer, "text", &value);
 801   g_value_unset (&value);
 802
 803   return GTK_WIDGET (cellview);
 804 }
 805
 806 /**
 807  * gtk_cell_view_new_with_markup:
 808  * @markup: the text to display in the cell view
 809  *
 810  * Creates a new #GtkCellView widget, adds a #GtkCellRendererText
 811  * to it, and makes its show @markup. The text can text can be
 812  * marked up with the <link linkend="PangoMarkupFormat">Pango text
 813  * markup language</link>.
 814  *
 815  * Return value: A newly created #GtkCellView widget.
 816  *
 817  * Since: 2.6
 818  */
 819 GtkWidget *
 820 gtk_cell_view_new_with_markup (const gchar *markup)
 821 {
 822   GtkCellView *cellview;
 823   GtkCellRenderer *renderer;
 824   GValue value = {0, };
 825
 826   cellview = GTK_CELL_VIEW (gtk_cell_view_new ());
 827
 828   renderer = gtk_cell_renderer_text_new ();
 829   gtk_cell_view_cell_layout_pack_start (GTK_CELL_LAYOUT (cellview),
 830                                         renderer, TRUE);
 831
 832   g_value_init (&value, G_TYPE_STRING);
 833   g_value_set_string (&value, markup);
 834   gtk_cell_view_set_value (cellview, renderer, "markup", &value);
 835   g_value_unset (&value);
 836
 837   return GTK_WIDGET (cellview);
 838 }
 839
 840 /**
 841  * gtk_cell_view_new_with_pixbuf:
 842  * @pixbuf: the image to display in the cell view
 843  *
 844  * Creates a new #GtkCellView widget, adds a #GtkCellRendererPixbuf
 845  * to it, and makes its show @pixbuf.
 846  *
 847  * Return value: A newly created #GtkCellView widget.
 848  *
 849  * Since: 2.6
 850  */
 851 GtkWidget *
 852 gtk_cell_view_new_with_pixbuf (GdkPixbuf *pixbuf)
 853 {
 854   GtkCellView *cellview;
 855   GtkCellRenderer *renderer;
 856   GValue value = {0, };
 857
 858   cellview = GTK_CELL_VIEW (gtk_cell_view_new ());
 859
 860   renderer = gtk_cell_renderer_pixbuf_new ();
 861   gtk_cell_view_cell_layout_pack_start (GTK_CELL_LAYOUT (cellview),
 862                                         renderer, TRUE);
 863
 864   g_value_init (&value, GDK_TYPE_PIXBUF);
 865   g_value_set_object (&value, pixbuf);
 866   gtk_cell_view_set_value (cellview, renderer, "pixbuf", &value);
 867   g_value_unset (&value);
 868
 869   return GTK_WIDGET (cellview);
 870 }
 871
 872 /**
 873  * gtk_cell_view_set_value:
 874  * @cell_view: a #GtkCellView widget
 875  * @renderer: one of the renderers of @cell_view
 876  * @property: the name of the property of @renderer to set
 877  * @value: the new value to set the property to
 878  *
 879  * Sets a property of a cell renderer of @cell_view, and
 880  * makes sure the display of @cell_view is updated.
 881  *
 882  * Since: 2.6
 883  */
 884 static void
 885 gtk_cell_view_set_value (GtkCellView     *cell_view,
 886                          GtkCellRenderer *renderer,
 887                          gchar           *property,
 888                          GValue          *value)
 889 {
 890   g_return_if_fail (GTK_IS_CELL_VIEW (cell_view));
 891   g_return_if_fail (GTK_IS_CELL_RENDERER (renderer));
 892
 893   g_object_set_property (G_OBJECT (renderer), property, value);
 894
 895   /* force resize and redraw */
 896   gtk_widget_queue_resize (GTK_WIDGET (cell_view));
 897   gtk_widget_queue_draw (GTK_WIDGET (cell_view));
 898 }
 899
 900 /**
 901  * gtk_cell_view_set_model:
 902  * @cell_view: a #GtkCellView
 903  * @model: a #GtkTreeModel
 904  *
 905  * Sets the model for @cell_view.  If @cell_view already has a model
 906  * set, it will remove it before setting the new model.  If @model is
 907  * %NULL, then it will unset the old model.
 908  *
 909  * Since: 2.6
 910  */
 911 void
 912 gtk_cell_view_set_model (GtkCellView  *cell_view,
 913                          GtkTreeModel *model)
 914 {
 915   g_return_if_fail (GTK_IS_CELL_VIEW (cell_view));
 916   g_return_if_fail (GTK_IS_TREE_MODEL (model));
 917
 918   if (cell_view->priv->model)
 919     {
 920       if (cell_view->priv->displayed_row)
 921         gtk_tree_row_reference_free (cell_view->priv->displayed_row);
 922       cell_view->priv->displayed_row = NULL;
 923
 924       g_object_unref (cell_view->priv->model);
 925       cell_view->priv->model = NULL;
 926     }
 927
 928   cell_view->priv->model = model;
 929
 930   if (cell_view->priv->model)
 931     g_object_ref (cell_view->priv->model);
 932 }
 933
 934 /**
 935  * gtk_cell_view_set_displayed_row:
 936  * @cell_view: a #GtkCellView
 937  * @path: a #GtkTreePath or %NULL to unset.
 938  *
 939  * Sets the row of the model that is currently displayed
 940  * by the #GtkCellView. If the path is unset, then the
 941  * contents of the cellview "stick" at their last value;
 942  * this is not normally a desired result, but may be
 943  * a needed intermediate state if say, the model for
 944  * the #GtkCellView becomes temporarily empty.
 945  *
 946  * Since: 2.6
 947  **/
 948 void
 949 gtk_cell_view_set_displayed_row (GtkCellView *cell_view,
 950                                  GtkTreePath *path)
 951 {
 952   g_return_if_fail (GTK_IS_CELL_VIEW (cell_view));
 953   g_return_if_fail (GTK_IS_TREE_MODEL (cell_view->priv->model));
 954
 955   if (cell_view->priv->displayed_row)
 956     gtk_tree_row_reference_free (cell_view->priv->displayed_row);
 957
 958   if (path)
 959     {
 960       cell_view->priv->displayed_row =
 961         gtk_tree_row_reference_new (cell_view->priv->model, path);
 962     }
 963   else
 964     cell_view->priv->displayed_row = NULL;
 965
 966   /* force resize and redraw */
 967   gtk_widget_queue_resize (GTK_WIDGET (cell_view));
 968   gtk_widget_queue_draw (GTK_WIDGET (cell_view));
 969 }
 970
 971 /**
 972  * gtk_cell_view_get_displayed_row:
 973  * @cell_view: a #GtkCellView
 974  *
 975  * Returns a #GtkTreePath referring to the currently
 976  * displayed row. If no row is currently displayed,
 977  * %NULL is returned.
 978  *
 979  * Returns: the currently displayed row or %NULL
 980  *
 981  * Since: 2.6
 982  */
 983 GtkTreePath *
 984 gtk_cell_view_get_displayed_row (GtkCellView *cell_view)
 985 {
 986   g_return_val_if_fail (GTK_IS_CELL_VIEW (cell_view), NULL);
 987
 988   if (!cell_view->priv->displayed_row)
 989     return NULL;
 990
 991   return gtk_tree_row_reference_get_path (cell_view->priv->displayed_row);
 992 }
 993
 994 /**
 995  * gtk_cell_view_get_size_of_row:
 996  * @cell_view: a #GtkCellView
 997  * @path: a #GtkTreePath
 998  * @requisition: return location for the size
 999  *
1000  * Sets @requisition to the size needed by @cell_view to display
1001  * the model row pointed to by @path.
1002  *
1003  * Return value: %TRUE
1004  *
1005  * Since: 2.6
1006  */
1007 gboolean
1008 gtk_cell_view_get_size_of_row (GtkCellView    *cell_view,
1009                                GtkTreePath    *path,
1010                                GtkRequisition *requisition)
1011 {
1012   GtkTreeRowReference *tmp;
1013   GtkRequisition req;
1014
1015   g_return_val_if_fail (GTK_IS_CELL_VIEW (cell_view), FALSE);
1016   g_return_val_if_fail (path != NULL, FALSE);
1017   g_return_val_if_fail (requisition != NULL, FALSE);
1018
1019   tmp = cell_view->priv->displayed_row;
1020   cell_view->priv->displayed_row =
1021     gtk_tree_row_reference_new (cell_view->priv->model, path);
1022
1023   gtk_cell_view_size_request (GTK_WIDGET (cell_view), requisition);
1024
1025   gtk_tree_row_reference_free (cell_view->priv->displayed_row);
1026   cell_view->priv->displayed_row = tmp;
1027
1028   /* restore actual size info */
1029   gtk_cell_view_size_request (GTK_WIDGET (cell_view), &req);
1030
1031   return TRUE;
1032 }
1033
1034 /**
1035  * gtk_cell_view_set_background_color:
1036  * @cell_view: a #GtkCellView
1037  * @color: the new background color
1038  *
1039  * Sets the background color of @view.
1040  *
1041  * Since: 2.6
1042  */
1043 void
1044 gtk_cell_view_set_background_color (GtkCellView    *cell_view,
1045                                     const GdkColor *color)
1046 {
1047   g_return_if_fail (GTK_IS_CELL_VIEW (cell_view));
1048
1049   if (color)
1050     {
1051       if (!cell_view->priv->background_set)
1052         {
1053           cell_view->priv->background_set = TRUE;
1054           g_object_notify (G_OBJECT (cell_view), "background_set");
1055         }
1056
1057       cell_view->priv->background = *color;
1058     }
1059   else
1060     {
1061       if (cell_view->priv->background_set)
1062         {
1063           cell_view->priv->background_set = FALSE;
1064           g_object_notify (G_OBJECT (cell_view), "background_set");
1065         }
1066     }
1067
1068   gtk_widget_queue_draw (GTK_WIDGET (cell_view));
1069 }
1070
1071 /**
1072  * gtk_cell_view_get_cell_renderers:
1073  * @cell_view: a #GtkCellView
1074  *
1075  * Returns the cell renderers which have been added to @cell_view.
1076  *
1077  * Return value: a list of cell renderers. The list, but not the
1078  *   renderers has been newly allocated and should be freed with
1079  *   g_list_free() when no longer needed.
1080  *
1081  * Since: 2.6
1082  */
1083 GList *
1084 gtk_cell_view_get_cell_renderers (GtkCellView *cell_view)
1085 {
1086   GList *retval = NULL, *list;
1087
1088   g_return_val_if_fail (cell_view != NULL, NULL);
1089
1090   gtk_cell_view_set_cell_data (cell_view);
1091
1092   for (list = cell_view->priv->cell_list; list; list = list->next)
1093     {
1094       GtkCellViewCellInfo *info = (GtkCellViewCellInfo *)list->data;
1095
1096       retval = g_list_prepend (retval, info->cell);
1097     }
1098
1099   return g_list_reverse (retval);
1100 }
1101
1102 #define __GTK_CELL_VIEW_C__
1103 #include "gtkaliasdef.c"