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 "gtkextendedlayout.h"
  28 #include "gtkextendedcell.h"
  29 #include "gtkprivate.h"
  30 #include <gobject/gmarshal.h>
  31 #include "gtkbuildable.h"
  32 #include "gtkalias.h"
  33
  34 typedef struct _GtkCellViewCellInfo GtkCellViewCellInfo;
  35 struct _GtkCellViewCellInfo
  36 {
  37   GtkCellRenderer *cell;
  38
  39   gint requested_width;
  40   gint natural_width;
  41   gint real_width;
  42   guint expand : 1;
  43   guint pack : 1;
  44
  45   GSList *attributes;
  46
  47   GtkCellLayoutDataFunc func;
  48   gpointer func_data;
  49   GDestroyNotify destroy;
  50 };
  51
  52 struct _GtkCellViewPrivate
  53 {
  54   GtkTreeModel *model;
  55   GtkTreeRowReference *displayed_row;
  56   GList *cell_list;
  57   gint spacing;
  58
  59   GdkColor background;
  60   gboolean background_set;
  61 };
  62
  63
  64 static void        gtk_cell_view_cell_layout_init         (GtkCellLayoutIface *iface);
  65 static void        gtk_cell_view_get_property             (GObject           *object,
  66                                                            guint             param_id,
  67                                                            GValue           *value,
  68                                                            GParamSpec       *pspec);
  69 static void        gtk_cell_view_set_property             (GObject          *object,
  70                                                            guint             param_id,
  71                                                            const GValue     *value,
  72                                                            GParamSpec       *pspec);
  73 static void        gtk_cell_view_finalize                 (GObject          *object);
  74 static void        gtk_cell_view_size_allocate            (GtkWidget        *widget,
  75                                                            GtkAllocation    *allocation);
  76 static gboolean    gtk_cell_view_expose                   (GtkWidget        *widget,
  77                                                            GdkEventExpose   *event);
  78 static void        gtk_cell_view_set_value                (GtkCellView     *cell_view,
  79                                                            GtkCellRenderer *renderer,
  80                                                            gchar           *property,
  81                                                            GValue          *value);
  82 static GtkCellViewCellInfo *gtk_cell_view_get_cell_info   (GtkCellView      *cellview,
  83                                                            GtkCellRenderer  *renderer);
  84 static void        gtk_cell_view_set_cell_data            (GtkCellView      *cell_view);
  85
  86
  87 static void        gtk_cell_view_cell_layout_pack_start        (GtkCellLayout         *layout,
  88                                                                 GtkCellRenderer       *renderer,
  89                                                                 gboolean               expand);
  90 static void        gtk_cell_view_cell_layout_pack_end          (GtkCellLayout         *layout,
  91                                                                 GtkCellRenderer       *renderer,
  92                                                                 gboolean               expand);
  93 static void        gtk_cell_view_cell_layout_add_attribute     (GtkCellLayout         *layout,
  94                                                                 GtkCellRenderer       *renderer,
  95                                                                 const gchar           *attribute,
  96                                                                 gint                   column);
  97 static void       gtk_cell_view_cell_layout_clear              (GtkCellLayout         *layout);
  98 static void       gtk_cell_view_cell_layout_clear_attributes   (GtkCellLayout         *layout,
  99                                                                 GtkCellRenderer       *renderer);
 100 static void       gtk_cell_view_cell_layout_set_cell_data_func (GtkCellLayout         *layout,
 101                                                                 GtkCellRenderer       *cell,
 102                                                                 GtkCellLayoutDataFunc  func,
 103                                                                 gpointer               func_data,
 104                                                                 GDestroyNotify         destroy);
 105 static void       gtk_cell_view_cell_layout_reorder            (GtkCellLayout         *layout,
 106                                                                 GtkCellRenderer       *cell,
 107                                                                 gint                   position);
 108 static GList *    gtk_cell_view_cell_layout_get_cells          (GtkCellLayout         *layout);
 109
 110 /* buildable */
 111 static void       gtk_cell_view_buildable_init                 (GtkBuildableIface     *iface);
 112 static gboolean   gtk_cell_view_buildable_custom_tag_start     (GtkBuildable          *buildable,
 113                                                                 GtkBuilder            *builder,
 114                                                                 GObject               *child,
 115                                                                 const gchar           *tagname,
 116                                                                 GMarkupParser         *parser,
 117                                                                 gpointer              *data);
 118 static void       gtk_cell_view_buildable_custom_tag_end       (GtkBuildable          *buildable,
 119                                                                 GtkBuilder            *builder,
 120                                                                 GObject               *child,
 121                                                                 const gchar           *tagname,
 122                                                                 gpointer              *data);
 123
 124 static void       gtk_cell_view_extended_layout_init             (GtkExtendedLayoutIface *iface);
 125 static void       gtk_cell_view_extended_layout_get_desired_size (GtkExtendedLayout *layout,
 126                                                                   GtkRequisition    *minimal_size,
 127                                                                   GtkRequisition    *natural_size);
 128
 129 static GtkBuildableIface *parent_buildable_iface;
 130
 131 #define GTK_CELL_VIEW_GET_PRIVATE(obj)    (G_TYPE_INSTANCE_GET_PRIVATE ((obj), GTK_TYPE_CELL_VIEW, GtkCellViewPrivate))
 132
 133 enum
 134 {
 135   PROP_0,
 136   PROP_BACKGROUND,
 137   PROP_BACKGROUND_GDK,
 138   PROP_BACKGROUND_SET,
 139   PROP_MODEL
 140 };
 141
 142 G_DEFINE_TYPE_WITH_CODE (GtkCellView, gtk_cell_view, GTK_TYPE_WIDGET,
 143                          G_IMPLEMENT_INTERFACE (GTK_TYPE_CELL_LAYOUT,
 144                                                 gtk_cell_view_cell_layout_init)
 145                          G_IMPLEMENT_INTERFACE (GTK_TYPE_BUILDABLE,
 146                                                 gtk_cell_view_buildable_init)
 147                          G_IMPLEMENT_INTERFACE (GTK_TYPE_EXTENDED_LAYOUT,
 148                                                 gtk_cell_view_extended_layout_init))
 149
 150
 151 static void
 152 gtk_cell_view_class_init (GtkCellViewClass *klass)
 153 {
 154   GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
 155   GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
 156
 157   gobject_class->get_property = gtk_cell_view_get_property;
 158   gobject_class->set_property = gtk_cell_view_set_property;
 159   gobject_class->finalize = gtk_cell_view_finalize;
 160
 161   widget_class->expose_event = gtk_cell_view_expose;
 162   widget_class->size_allocate = gtk_cell_view_size_allocate;
 163
 164   /* properties */
 165   g_object_class_install_property (gobject_class,
 166                                    PROP_BACKGROUND,
 167                                    g_param_spec_string ("background",
 168                                                         P_("Background color name"),
 169                                                         P_("Background color as a string"),
 170                                                         NULL,
 171                                                         GTK_PARAM_WRITABLE));
 172   g_object_class_install_property (gobject_class,
 173                                    PROP_BACKGROUND_GDK,
 174                                    g_param_spec_boxed ("background-gdk",
 175                                                       P_("Background color"),
 176                                                       P_("Background color as a GdkColor"),
 177                                                       GDK_TYPE_COLOR,
 178                                                       GTK_PARAM_READWRITE));
 179
 180   /**
 181    * GtkCellView:model
 182    *
 183    * The model for cell view
 184    *
 185    * since 2.10
 186    */
 187   g_object_class_install_property (gobject_class,
 188                                    PROP_MODEL,
 189                                    g_param_spec_object  ("model",
 190                                                          P_("CellView model"),
 191                                                          P_("The model for cell view"),
 192                                                          GTK_TYPE_TREE_MODEL,
 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_buildable_init (GtkBuildableIface *iface)
 206 {
 207   parent_buildable_iface = g_type_interface_peek_parent (iface);
 208   iface->add_child = _gtk_cell_layout_buildable_add_child;
 209   iface->custom_tag_start = gtk_cell_view_buildable_custom_tag_start;
 210   iface->custom_tag_end = gtk_cell_view_buildable_custom_tag_end;
 211 }
 212
 213 static void
 214 gtk_cell_view_cell_layout_init (GtkCellLayoutIface *iface)
 215 {
 216   iface->pack_start = gtk_cell_view_cell_layout_pack_start;
 217   iface->pack_end = gtk_cell_view_cell_layout_pack_end;
 218   iface->clear = gtk_cell_view_cell_layout_clear;
 219   iface->add_attribute = gtk_cell_view_cell_layout_add_attribute;
 220   iface->set_cell_data_func = gtk_cell_view_cell_layout_set_cell_data_func;
 221   iface->clear_attributes = gtk_cell_view_cell_layout_clear_attributes;
 222   iface->reorder = gtk_cell_view_cell_layout_reorder;
 223   iface->get_cells = gtk_cell_view_cell_layout_get_cells;
 224 }
 225
 226 static void
 227 gtk_cell_view_get_property (GObject    *object,
 228                             guint       param_id,
 229                             GValue     *value,
 230                             GParamSpec *pspec)
 231 {
 232   GtkCellView *view = GTK_CELL_VIEW (object);
 233
 234   switch (param_id)
 235     {
 236       case PROP_BACKGROUND_GDK:
 237         {
 238           GdkColor color;
 239
 240           color = view->priv->background;
 241
 242           g_value_set_boxed (value, &color);
 243         }
 244         break;
 245       case PROP_BACKGROUND_SET:
 246         g_value_set_boolean (value, view->priv->background_set);
 247         break;
 248       case PROP_MODEL:
 249         g_value_set_object (value, view->priv->model);
 250         break;
 251       default:
 252         G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec);
 253         break;
 254     }
 255 }
 256
 257 static void
 258 gtk_cell_view_set_property (GObject      *object,
 259                             guint         param_id,
 260                             const GValue *value,
 261                             GParamSpec   *pspec)
 262 {
 263   GtkCellView *view = GTK_CELL_VIEW (object);
 264
 265   switch (param_id)
 266     {
 267       case PROP_BACKGROUND:
 268         {
 269           GdkColor color;
 270
 271           if (!g_value_get_string (value))
 272             gtk_cell_view_set_background_color (view, NULL);
 273           else if (gdk_color_parse (g_value_get_string (value), &color))
 274             gtk_cell_view_set_background_color (view, &color);
 275           else
 276             g_warning ("Don't know color `%s'", g_value_get_string (value));
 277
 278           g_object_notify (object, "background-gdk");
 279         }
 280         break;
 281       case PROP_BACKGROUND_GDK:
 282         gtk_cell_view_set_background_color (view, g_value_get_boxed (value));
 283         break;
 284       case PROP_BACKGROUND_SET:
 285         view->priv->background_set = g_value_get_boolean (value);
 286         break;
 287       case PROP_MODEL:
 288         gtk_cell_view_set_model (view, g_value_get_object (value));
 289         break;
 290     default:
 291         G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec);
 292         break;
 293     }
 294 }
 295
 296 static void
 297 gtk_cell_view_init (GtkCellView *cellview)
 298 {
 299   gtk_widget_set_has_window (GTK_WIDGET (cellview), FALSE);
 300
 301   cellview->priv = GTK_CELL_VIEW_GET_PRIVATE (cellview);
 302 }
 303
 304 static void
 305 gtk_cell_view_finalize (GObject *object)
 306 {
 307   GtkCellView *cellview = GTK_CELL_VIEW (object);
 308
 309   gtk_cell_view_cell_layout_clear (GTK_CELL_LAYOUT (cellview));
 310
 311   if (cellview->priv->model)
 312      g_object_unref (cellview->priv->model);
 313
 314   if (cellview->priv->displayed_row)
 315      gtk_tree_row_reference_free (cellview->priv->displayed_row);
 316
 317   G_OBJECT_CLASS (gtk_cell_view_parent_class)->finalize (object);
 318 }
 319
 320 static void
 321 gtk_cell_view_size_allocate (GtkWidget     *widget,
 322                              GtkAllocation *allocation)
 323 {
 324   GtkCellView *cellview;
 325   GList *i;
 326   gint nexpand_cells = 0;
 327   gint requested_width = 0;
 328   gint natural_width = 0;
 329   gint available, natural, extra;
 330
 331   widget->allocation = *allocation;
 332
 333   cellview = GTK_CELL_VIEW (widget);
 334
 335   /* checking how much extra space we have */
 336   for (i = cellview->priv->cell_list; i; i = i->next)
 337     {
 338       GtkCellViewCellInfo *info = (GtkCellViewCellInfo *)i->data;
 339
 340       if (!info->cell->visible)
 341         continue;
 342
 343       if (info->expand)
 344         nexpand_cells++;
 345
 346       requested_width += info->requested_width;
 347       natural_width += info->natural_width - info->requested_width;
 348     }
 349
 350   available = MAX (0, widget->allocation.width - requested_width);
 351   natural = MIN (available, natural_width);
 352   available -= natural;
 353
 354   if (nexpand_cells > 0)
 355     extra = available / nexpand_cells;
 356   else
 357     extra = 0;
 358
 359   for (i = cellview->priv->cell_list; i; i = i->next)
 360     {
 361       GtkCellViewCellInfo *info = (GtkCellViewCellInfo *)i->data;
 362
 363       if (!info->cell->visible)
 364         continue;
 365
 366       info->real_width = info->requested_width;
 367
 368       if (natural_width > 0)
 369           info->real_width += natural * (info->natural_width - info->requested_width) / natural_width;
 370
 371       if (info->expand)
 372         {
 373           if (nexpand_cells == 1)
 374             info->real_width += available;
 375           else
 376             info->real_width += extra;
 377
 378          nexpand_cells -= 1;
 379          available -= extra;
 380        }
 381     }
 382 }
 383
 384 static gboolean
 385 gtk_cell_view_expose (GtkWidget      *widget,
 386                       GdkEventExpose *event)
 387 {
 388   GList *i;
 389   GtkCellView *cellview;
 390   GdkRectangle area;
 391   GtkCellRendererState state;
 392   gboolean rtl = (gtk_widget_get_direction(widget) == GTK_TEXT_DIR_RTL);
 393
 394   cellview = GTK_CELL_VIEW (widget);
 395
 396   if (!gtk_widget_is_drawable (widget))
 397     return FALSE;
 398
 399   /* "blank" background */
 400   if (cellview->priv->background_set)
 401     {
 402       cairo_t *cr = gdk_cairo_create (GTK_WIDGET (cellview)->window);
 403
 404       gdk_cairo_rectangle (cr, &widget->allocation);
 405       cairo_set_source_rgb (cr,
 406                             cellview->priv->background.red / 65535.,
 407                             cellview->priv->background.green / 65535.,
 408                             cellview->priv->background.blue / 65535.);
 409       cairo_fill (cr);
 410
 411       cairo_destroy (cr);
 412     }
 413
 414   /* set cell data (if available) */
 415   if (cellview->priv->displayed_row)
 416     gtk_cell_view_set_cell_data (cellview);
 417   else if (cellview->priv->model)
 418     return FALSE;
 419
 420   /* render cells */
 421   area = widget->allocation;
 422
 423   /* we draw on our very own window, initialize x and y to zero */
 424   area.x = widget->allocation.x + (rtl ? widget->allocation.width : 0);
 425   area.y = widget->allocation.y;
 426
 427   if (gtk_widget_get_state (widget) == GTK_STATE_PRELIGHT)
 428     state = GTK_CELL_RENDERER_PRELIT;
 429   else if (gtk_widget_get_state (widget) == GTK_STATE_INSENSITIVE)
 430     state = GTK_CELL_RENDERER_INSENSITIVE;
 431   else
 432     state = 0;
 433
 434   /* PACK_START */
 435   for (i = cellview->priv->cell_list; i; i = i->next)
 436     {
 437       GtkCellViewCellInfo *info = (GtkCellViewCellInfo *)i->data;
 438
 439       if (info->pack == GTK_PACK_END)
 440         continue;
 441
 442       if (!info->cell->visible)
 443         continue;
 444
 445       area.width = info->real_width;
 446       if (rtl)
 447          area.x -= area.width;
 448
 449       gtk_cell_renderer_render (info->cell,
 450                                 event->window,
 451                                 widget,
 452                                 /* FIXME! */
 453                                 &area, &area, &event->area, state);
 454
 455       if (!rtl)
 456          area.x += info->real_width;
 457     }
 458
 459    area.x = rtl ? widget->allocation.x : (widget->allocation.x + widget->allocation.width);
 460
 461   /* PACK_END */
 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_START)
 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                                 widget->window,
 478                                 widget,
 479                                 /* FIXME ! */
 480                                 &area, &area, &event->area, state);
 481       if (rtl)
 482          area.x += info->real_width;
 483     }
 484
 485   return FALSE;
 486 }
 487
 488 static GtkCellViewCellInfo *
 489 gtk_cell_view_get_cell_info (GtkCellView     *cellview,
 490                              GtkCellRenderer *renderer)
 491 {
 492   GList *i;
 493
 494   for (i = cellview->priv->cell_list; i; i = i->next)
 495     {
 496       GtkCellViewCellInfo *info = (GtkCellViewCellInfo *)i->data;
 497
 498       if (info->cell == renderer)
 499         return info;
 500     }
 501
 502   return NULL;
 503 }
 504
 505 static void
 506 gtk_cell_view_set_cell_data (GtkCellView *cell_view)
 507 {
 508   GList *i;
 509   GtkTreeIter iter;
 510   GtkTreePath *path;
 511
 512   g_return_if_fail (cell_view->priv->displayed_row != NULL);
 513
 514   path = gtk_tree_row_reference_get_path (cell_view->priv->displayed_row);
 515   if (!path)
 516     return;
 517
 518   gtk_tree_model_get_iter (cell_view->priv->model, &iter, path);
 519   gtk_tree_path_free (path);
 520
 521   for (i = cell_view->priv->cell_list; i; i = i->next)
 522     {
 523       GSList *j;
 524       GtkCellViewCellInfo *info = i->data;
 525
 526       g_object_freeze_notify (G_OBJECT (info->cell));
 527
 528       for (j = info->attributes; j && j->next; j = j->next->next)
 529         {
 530           gchar *property = j->data;
 531           gint column = GPOINTER_TO_INT (j->next->data);
 532           GValue value = {0, };
 533
 534           gtk_tree_model_get_value (cell_view->priv->model, &iter,
 535                                     column, &value);
 536           g_object_set_property (G_OBJECT (info->cell),
 537                                  property, &value);
 538           g_value_unset (&value);
 539         }
 540
 541       if (info->func)
 542         (* info->func) (GTK_CELL_LAYOUT (cell_view),
 543                         info->cell,
 544                         cell_view->priv->model,
 545                         &iter,
 546                         info->func_data);
 547
 548       g_object_thaw_notify (G_OBJECT (info->cell));
 549     }
 550 }
 551
 552 /* GtkCellLayout implementation */
 553 static void
 554 gtk_cell_view_cell_layout_pack_start (GtkCellLayout   *layout,
 555                                       GtkCellRenderer *renderer,
 556                                       gboolean         expand)
 557 {
 558   GtkCellViewCellInfo *info;
 559   GtkCellView *cellview = GTK_CELL_VIEW (layout);
 560
 561   g_return_if_fail (!gtk_cell_view_get_cell_info (cellview, renderer));
 562
 563   g_object_ref_sink (renderer);
 564
 565   info = g_slice_new0 (GtkCellViewCellInfo);
 566   info->cell = renderer;
 567   info->expand = expand ? TRUE : FALSE;
 568   info->pack = GTK_PACK_START;
 569
 570   cellview->priv->cell_list = g_list_append (cellview->priv->cell_list, info);
 571
 572   gtk_widget_queue_resize (cellview);
 573 }
 574
 575 static void
 576 gtk_cell_view_cell_layout_pack_end (GtkCellLayout   *layout,
 577                                     GtkCellRenderer *renderer,
 578                                     gboolean         expand)
 579 {
 580   GtkCellViewCellInfo *info;
 581   GtkCellView *cellview = GTK_CELL_VIEW (layout);
 582
 583   g_return_if_fail (!gtk_cell_view_get_cell_info (cellview, renderer));
 584
 585   g_object_ref_sink (renderer);
 586
 587   info = g_slice_new0 (GtkCellViewCellInfo);
 588   info->cell = renderer;
 589   info->expand = expand ? TRUE : FALSE;
 590   info->pack = GTK_PACK_END;
 591
 592   cellview->priv->cell_list = g_list_append (cellview->priv->cell_list, info);
 593
 594   gtk_widget_queue_resize (cellview);
 595 }
 596
 597 static void
 598 gtk_cell_view_cell_layout_add_attribute (GtkCellLayout   *layout,
 599                                          GtkCellRenderer *renderer,
 600                                          const gchar     *attribute,
 601                                          gint             column)
 602 {
 603   GtkCellViewCellInfo *info;
 604   GtkCellView *cellview = GTK_CELL_VIEW (layout);
 605
 606   info = gtk_cell_view_get_cell_info (cellview, renderer);
 607   g_return_if_fail (info != NULL);
 608
 609   info->attributes = g_slist_prepend (info->attributes,
 610                                       GINT_TO_POINTER (column));
 611   info->attributes = g_slist_prepend (info->attributes,
 612                                       g_strdup (attribute));
 613 }
 614
 615 static void
 616 gtk_cell_view_cell_layout_clear (GtkCellLayout *layout)
 617 {
 618   GtkCellView *cellview = GTK_CELL_VIEW (layout);
 619
 620   while (cellview->priv->cell_list)
 621     {
 622       GtkCellViewCellInfo *info = (GtkCellViewCellInfo *)cellview->priv->cell_list->data;
 623
 624       gtk_cell_view_cell_layout_clear_attributes (layout, info->cell);
 625       g_object_unref (info->cell);
 626       g_slice_free (GtkCellViewCellInfo, info);
 627       cellview->priv->cell_list = g_list_delete_link (cellview->priv->cell_list,
 628                                                       cellview->priv->cell_list);
 629     }
 630 }
 631
 632 static void
 633 gtk_cell_view_cell_layout_set_cell_data_func (GtkCellLayout         *layout,
 634                                               GtkCellRenderer       *cell,
 635                                               GtkCellLayoutDataFunc  func,
 636                                               gpointer               func_data,
 637                                               GDestroyNotify         destroy)
 638 {
 639   GtkCellView *cellview = GTK_CELL_VIEW (layout);
 640   GtkCellViewCellInfo *info;
 641
 642   info = gtk_cell_view_get_cell_info (cellview, cell);
 643   g_return_if_fail (info != NULL);
 644
 645   if (info->destroy)
 646     {
 647       GDestroyNotify d = info->destroy;
 648
 649       info->destroy = NULL;
 650       d (info->func_data);
 651     }
 652
 653   info->func = func;
 654   info->func_data = func_data;
 655   info->destroy = destroy;
 656 }
 657
 658 static void
 659 gtk_cell_view_cell_layout_clear_attributes (GtkCellLayout   *layout,
 660                                             GtkCellRenderer *renderer)
 661 {
 662   GtkCellView *cellview = GTK_CELL_VIEW (layout);
 663   GtkCellViewCellInfo *info;
 664   GSList *list;
 665
 666   info = gtk_cell_view_get_cell_info (cellview, renderer);
 667   if (info != NULL)
 668     {
 669       list = info->attributes;
 670       while (list && list->next)
 671         {
 672           g_free (list->data);
 673           list = list->next->next;
 674         }
 675
 676       g_slist_free (info->attributes);
 677       info->attributes = NULL;
 678     }
 679 }
 680
 681 static void
 682 gtk_cell_view_cell_layout_reorder (GtkCellLayout   *layout,
 683                                    GtkCellRenderer *cell,
 684                                    gint             position)
 685 {
 686   GtkCellView *cellview = GTK_CELL_VIEW (layout);
 687   GtkCellViewCellInfo *info;
 688   GList *link;
 689
 690   info = gtk_cell_view_get_cell_info (cellview, cell);
 691
 692   g_return_if_fail (info != NULL);
 693   g_return_if_fail (position >= 0);
 694
 695   link = g_list_find (cellview->priv->cell_list, info);
 696
 697   g_return_if_fail (link != NULL);
 698
 699   cellview->priv->cell_list = g_list_delete_link (cellview->priv->cell_list,
 700                                                   link);
 701   cellview->priv->cell_list = g_list_insert (cellview->priv->cell_list,
 702                                              info, position);
 703
 704   gtk_widget_queue_draw (GTK_WIDGET (cellview));
 705 }
 706
 707 /**
 708  * gtk_cell_view_new:
 709  *
 710  * Creates a new #GtkCellView widget.
 711  *
 712  * Return value: A newly created #GtkCellView widget.
 713  *
 714  * Since: 2.6
 715  */
 716 GtkWidget *
 717 gtk_cell_view_new (void)
 718 {
 719   GtkCellView *cellview;
 720
 721   cellview = g_object_new (gtk_cell_view_get_type (), NULL);
 722
 723   return GTK_WIDGET (cellview);
 724 }
 725
 726 /**
 727  * gtk_cell_view_new_with_text:
 728  * @text: the text to display in the cell view
 729  *
 730  * Creates a new #GtkCellView widget, adds a #GtkCellRendererText
 731  * to it, and makes its show @text.
 732  *
 733  * Return value: A newly created #GtkCellView widget.
 734  *
 735  * Since: 2.6
 736  */
 737 GtkWidget *
 738 gtk_cell_view_new_with_text (const gchar *text)
 739 {
 740   GtkCellView *cellview;
 741   GtkCellRenderer *renderer;
 742   GValue value = {0, };
 743
 744   cellview = GTK_CELL_VIEW (gtk_cell_view_new ());
 745
 746   renderer = gtk_cell_renderer_text_new ();
 747   gtk_cell_view_cell_layout_pack_start (GTK_CELL_LAYOUT (cellview),
 748                                         renderer, TRUE);
 749
 750   g_value_init (&value, G_TYPE_STRING);
 751   g_value_set_string (&value, text);
 752   gtk_cell_view_set_value (cellview, renderer, "text", &value);
 753   g_value_unset (&value);
 754
 755   return GTK_WIDGET (cellview);
 756 }
 757
 758 /**
 759  * gtk_cell_view_new_with_markup:
 760  * @markup: the text to display in the cell view
 761  *
 762  * Creates a new #GtkCellView widget, adds a #GtkCellRendererText
 763  * to it, and makes it show @markup. The text can be
 764  * marked up with the <link linkend="PangoMarkupFormat">Pango text
 765  * markup language</link>.
 766  *
 767  * Return value: A newly created #GtkCellView widget.
 768  *
 769  * Since: 2.6
 770  */
 771 GtkWidget *
 772 gtk_cell_view_new_with_markup (const gchar *markup)
 773 {
 774   GtkCellView *cellview;
 775   GtkCellRenderer *renderer;
 776   GValue value = {0, };
 777
 778   cellview = GTK_CELL_VIEW (gtk_cell_view_new ());
 779
 780   renderer = gtk_cell_renderer_text_new ();
 781   gtk_cell_view_cell_layout_pack_start (GTK_CELL_LAYOUT (cellview),
 782                                         renderer, TRUE);
 783
 784   g_value_init (&value, G_TYPE_STRING);
 785   g_value_set_string (&value, markup);
 786   gtk_cell_view_set_value (cellview, renderer, "markup", &value);
 787   g_value_unset (&value);
 788
 789   return GTK_WIDGET (cellview);
 790 }
 791
 792 /**
 793  * gtk_cell_view_new_with_pixbuf:
 794  * @pixbuf: the image to display in the cell view
 795  *
 796  * Creates a new #GtkCellView widget, adds a #GtkCellRendererPixbuf
 797  * to it, and makes its show @pixbuf.
 798  *
 799  * Return value: A newly created #GtkCellView widget.
 800  *
 801  * Since: 2.6
 802  */
 803 GtkWidget *
 804 gtk_cell_view_new_with_pixbuf (GdkPixbuf *pixbuf)
 805 {
 806   GtkCellView *cellview;
 807   GtkCellRenderer *renderer;
 808   GValue value = {0, };
 809
 810   cellview = GTK_CELL_VIEW (gtk_cell_view_new ());
 811
 812   renderer = gtk_cell_renderer_pixbuf_new ();
 813   gtk_cell_view_cell_layout_pack_start (GTK_CELL_LAYOUT (cellview),
 814                                         renderer, TRUE);
 815
 816   g_value_init (&value, GDK_TYPE_PIXBUF);
 817   g_value_set_object (&value, pixbuf);
 818   gtk_cell_view_set_value (cellview, renderer, "pixbuf", &value);
 819   g_value_unset (&value);
 820
 821   return GTK_WIDGET (cellview);
 822 }
 823
 824 /**
 825  * gtk_cell_view_set_value:
 826  * @cell_view: a #GtkCellView widget
 827  * @renderer: one of the renderers of @cell_view
 828  * @property: the name of the property of @renderer to set
 829  * @value: the new value to set the property to
 830  *
 831  * Sets a property of a cell renderer of @cell_view, and
 832  * makes sure the display of @cell_view is updated.
 833  *
 834  * Since: 2.6
 835  */
 836 static void
 837 gtk_cell_view_set_value (GtkCellView     *cell_view,
 838                          GtkCellRenderer *renderer,
 839                          gchar           *property,
 840                          GValue          *value)
 841 {
 842   g_object_set_property (G_OBJECT (renderer), property, value);
 843
 844   /* force resize and redraw */
 845   gtk_widget_queue_resize (GTK_WIDGET (cell_view));
 846   gtk_widget_queue_draw (GTK_WIDGET (cell_view));
 847 }
 848
 849 /**
 850  * gtk_cell_view_set_model:
 851  * @cell_view: a #GtkCellView
 852  * @model: (allow-none): a #GtkTreeModel
 853  *
 854  * Sets the model for @cell_view.  If @cell_view already has a model
 855  * set, it will remove it before setting the new model.  If @model is
 856  * %NULL, then it will unset the old model.
 857  *
 858  * Since: 2.6
 859  */
 860 void
 861 gtk_cell_view_set_model (GtkCellView  *cell_view,
 862                          GtkTreeModel *model)
 863 {
 864   g_return_if_fail (GTK_IS_CELL_VIEW (cell_view));
 865   g_return_if_fail (model == NULL || GTK_IS_TREE_MODEL (model));
 866
 867   if (cell_view->priv->model)
 868     {
 869       if (cell_view->priv->displayed_row)
 870         gtk_tree_row_reference_free (cell_view->priv->displayed_row);
 871       cell_view->priv->displayed_row = NULL;
 872
 873       g_object_unref (cell_view->priv->model);
 874       cell_view->priv->model = NULL;
 875     }
 876
 877   cell_view->priv->model = model;
 878
 879   if (cell_view->priv->model)
 880     g_object_ref (cell_view->priv->model);
 881 }
 882
 883 /**
 884  * gtk_cell_view_get_model:
 885  * @cell_view: a #GtkCellView
 886  *
 887  * Returns the model for @cell_view. If no model is used %NULL is
 888  * returned.
 889  *
 890  * Returns: a #GtkTreeModel used or %NULL
 891  *
 892  * Since: 2.16
 893  **/
 894 GtkTreeModel *
 895 gtk_cell_view_get_model (GtkCellView *cell_view)
 896 {
 897   g_return_val_if_fail (GTK_IS_CELL_VIEW (cell_view), NULL);
 898
 899   return cell_view->priv->model;
 900 }
 901
 902 /**
 903  * gtk_cell_view_set_displayed_row:
 904  * @cell_view: a #GtkCellView
 905  * @path: (allow-none): a #GtkTreePath or %NULL to unset.
 906  *
 907  * Sets the row of the model that is currently displayed
 908  * by the #GtkCellView. If the path is unset, then the
 909  * contents of the cellview "stick" at their last value;
 910  * this is not normally a desired result, but may be
 911  * a needed intermediate state if say, the model for
 912  * the #GtkCellView becomes temporarily empty.
 913  *
 914  * Since: 2.6
 915  **/
 916 void
 917 gtk_cell_view_set_displayed_row (GtkCellView *cell_view,
 918                                  GtkTreePath *path)
 919 {
 920   g_return_if_fail (GTK_IS_CELL_VIEW (cell_view));
 921   g_return_if_fail (GTK_IS_TREE_MODEL (cell_view->priv->model));
 922
 923   if (cell_view->priv->displayed_row)
 924     gtk_tree_row_reference_free (cell_view->priv->displayed_row);
 925
 926   if (path)
 927     {
 928       cell_view->priv->displayed_row =
 929         gtk_tree_row_reference_new (cell_view->priv->model, path);
 930     }
 931   else
 932     cell_view->priv->displayed_row = NULL;
 933
 934   /* force resize and redraw */
 935   gtk_widget_queue_resize (GTK_WIDGET (cell_view));
 936   gtk_widget_queue_draw (GTK_WIDGET (cell_view));
 937 }
 938
 939 /**
 940  * gtk_cell_view_get_displayed_row:
 941  * @cell_view: a #GtkCellView
 942  *
 943  * Returns a #GtkTreePath referring to the currently
 944  * displayed row. If no row is currently displayed,
 945  * %NULL is returned.
 946  *
 947  * Returns: the currently displayed row or %NULL
 948  *
 949  * Since: 2.6
 950  */
 951 GtkTreePath *
 952 gtk_cell_view_get_displayed_row (GtkCellView *cell_view)
 953 {
 954   g_return_val_if_fail (GTK_IS_CELL_VIEW (cell_view), NULL);
 955
 956   if (!cell_view->priv->displayed_row)
 957     return NULL;
 958
 959   return gtk_tree_row_reference_get_path (cell_view->priv->displayed_row);
 960 }
 961
 962 /**
 963  * gtk_cell_view_get_size_of_row:
 964  * @cell_view: a #GtkCellView
 965  * @path: a #GtkTreePath
 966  * @requisition: return location for the size
 967  *
 968  * Sets @requisition to the size needed by @cell_view to display
 969  * the model row pointed to by @path.
 970  *
 971  * Return value: %TRUE
 972  *
 973  * Since: 2.6
 974  *
 975  * Deprecated: 3.0: Use gtk_cell_view_get_desired_size_of_row() instead.
 976  */
 977 gboolean
 978 gtk_cell_view_get_size_of_row (GtkCellView    *cell_view,
 979                                GtkTreePath    *path,
 980                                GtkRequisition *requisition)
 981 {
 982   GtkRequisition req;
 983
 984   gtk_cell_view_get_desired_size_of_row (cell_view, path, requisition, &req);
 985
 986   return TRUE;
 987 }
 988
 989
 990 /**
 991  * gtk_cell_view_get_desired_size_of_row:
 992  * @cell_view: a #GtkCellView
 993  * @path: a #GtkTreePath
 994  * @minimum_size: return location for the minimum requested size
 995  * @natural_size: return location for the desired natural size
 996  *
 997  * Sets @minimum_size and @natural_size to the size desired by @cell_view
 998  * to display the model row pointed to by @path.
 999  *
1000  * Since: 3.0
1001  */
1002 void
1003 gtk_cell_view_get_desired_size_of_row (GtkCellView     *cell_view,
1004                                        GtkTreePath     *path,
1005                                        GtkRequisition  *minimum_size,
1006                                        GtkRequisition  *natural_size)
1007 {
1008   GtkTreeRowReference *tmp;
1009   GtkRequisition req, nat_req;
1010
1011   g_return_if_fail (GTK_IS_CELL_VIEW (cell_view));
1012   g_return_if_fail (path != NULL);
1013   g_return_if_fail (minimum_size != NULL || natural_size != NULL);
1014
1015   tmp = cell_view->priv->displayed_row;
1016   cell_view->priv->displayed_row =
1017     gtk_tree_row_reference_new (cell_view->priv->model, path);
1018
1019   gtk_cell_view_extended_layout_get_desired_size (GTK_EXTENDED_LAYOUT (cell_view),
1020                                                   minimum_size ? minimum_size : &req,
1021                                                   natural_size ? natural_size : &nat_req);
1022
1023   gtk_tree_row_reference_free (cell_view->priv->displayed_row);
1024   cell_view->priv->displayed_row = tmp;
1025
1026   /* Restore active size */
1027   gtk_cell_view_extended_layout_get_desired_size (GTK_EXTENDED_LAYOUT (cell_view),
1028                                                   &req, &nat_req);
1029 }
1030
1031 /**
1032  * gtk_cell_view_set_background_color:
1033  * @cell_view: a #GtkCellView
1034  * @color: the new background color
1035  *
1036  * Sets the background color of @view.
1037  *
1038  * Since: 2.6
1039  */
1040 void
1041 gtk_cell_view_set_background_color (GtkCellView    *cell_view,
1042                                     const GdkColor *color)
1043 {
1044   g_return_if_fail (GTK_IS_CELL_VIEW (cell_view));
1045
1046   if (color)
1047     {
1048       if (!cell_view->priv->background_set)
1049         {
1050           cell_view->priv->background_set = TRUE;
1051           g_object_notify (G_OBJECT (cell_view), "background-set");
1052         }
1053
1054       cell_view->priv->background = *color;
1055     }
1056   else
1057     {
1058       if (cell_view->priv->background_set)
1059         {
1060           cell_view->priv->background_set = FALSE;
1061           g_object_notify (G_OBJECT (cell_view), "background-set");
1062         }
1063     }
1064
1065   gtk_widget_queue_draw (GTK_WIDGET (cell_view));
1066 }
1067
1068 static GList *
1069 gtk_cell_view_cell_layout_get_cells (GtkCellLayout *layout)
1070 {
1071   GtkCellView *cell_view = GTK_CELL_VIEW (layout);
1072   GList *retval = NULL, *list;
1073
1074   g_return_val_if_fail (cell_view != NULL, NULL);
1075
1076   gtk_cell_view_set_cell_data (cell_view);
1077
1078   for (list = cell_view->priv->cell_list; list; list = list->next)
1079     {
1080       GtkCellViewCellInfo *info = (GtkCellViewCellInfo *)list->data;
1081
1082       retval = g_list_prepend (retval, info->cell);
1083     }
1084
1085   return g_list_reverse (retval);
1086 }
1087
1088 /**
1089  * gtk_cell_view_get_cell_renderers:
1090  * @cell_view: a #GtkCellView
1091  *
1092  * Returns the cell renderers which have been added to @cell_view.
1093  *
1094  * Return value: a list of cell renderers. The list, but not the
1095  *   renderers has been newly allocated and should be freed with
1096  *   g_list_free() when no longer needed.
1097  *
1098  * Since: 2.6
1099  *
1100  * Deprecated: 2.18: use gtk_cell_layout_get_cells() instead.
1101  **/
1102 GList *
1103 gtk_cell_view_get_cell_renderers (GtkCellView *cell_view)
1104 {
1105   return gtk_cell_view_cell_layout_get_cells (GTK_CELL_LAYOUT (cell_view));
1106 }
1107
1108 static gboolean
1109 gtk_cell_view_buildable_custom_tag_start (GtkBuildable  *buildable,
1110                                           GtkBuilder    *builder,
1111                                           GObject       *child,
1112                                           const gchar   *tagname,
1113                                           GMarkupParser *parser,
1114                                           gpointer      *data)
1115 {
1116   if (parent_buildable_iface->custom_tag_start &&
1117       parent_buildable_iface->custom_tag_start (buildable, builder, child,
1118                                                 tagname, parser, data))
1119     return TRUE;
1120
1121   return _gtk_cell_layout_buildable_custom_tag_start (buildable, builder, child,
1122                                                       tagname, parser, data);
1123 }
1124
1125 static void
1126 gtk_cell_view_buildable_custom_tag_end (GtkBuildable *buildable,
1127                                         GtkBuilder   *builder,
1128                                         GObject      *child,
1129                                         const gchar  *tagname,
1130                                         gpointer     *data)
1131 {
1132   if (strcmp (tagname, "attributes") == 0)
1133     _gtk_cell_layout_buildable_custom_tag_end (buildable, builder, child, tagname,
1134                                                data);
1135   else if (parent_buildable_iface->custom_tag_end)
1136     parent_buildable_iface->custom_tag_end (buildable, builder, child, tagname,
1137                                             data);
1138 }
1139
1140 static void
1141 gtk_cell_view_extended_layout_get_desired_size (GtkExtendedLayout *layout,
1142                                                 GtkRequisition    *minimal_size,
1143                                                 GtkRequisition    *natural_size)
1144 {
1145   GList *i;
1146   GtkRequisition cell_min, cell_nat;
1147   gboolean first_cell = TRUE;
1148   GtkCellView *cellview = GTK_CELL_VIEW (layout);
1149
1150   minimal_size->width  = 0;
1151   minimal_size->height = 0;
1152   natural_size->width  = 0;
1153   natural_size->height = 0;
1154
1155   if (cellview->priv->displayed_row)
1156     gtk_cell_view_set_cell_data (cellview);
1157
1158   for (i = cellview->priv->cell_list; i; i = i->next)
1159     {
1160       GtkCellViewCellInfo *info = (GtkCellViewCellInfo *)i->data;
1161
1162       if (info->cell->visible)
1163         {
1164
1165           if (!first_cell)
1166             {
1167               minimal_size->width += cellview->priv->spacing;
1168               natural_size->width += cellview->priv->spacing;
1169             }
1170
1171           gtk_extended_cell_get_desired_size (GTK_EXTENDED_CELL (info->cell),
1172                                               GTK_WIDGET (cellview), &cell_min, &cell_nat);
1173
1174
1175           info->requested_width = cell_min.width;
1176           info->natural_width   = cell_nat.width;
1177
1178           minimal_size->width += info->requested_width;
1179           natural_size->width += info->natural_width;
1180
1181           minimal_size->height = MAX (minimal_size->height, cell_min.height);
1182           natural_size->height = MAX (natural_size->height, cell_nat.height);
1183
1184           first_cell = FALSE;
1185         }
1186     }
1187 }
1188
1189 static void
1190 gtk_cell_view_extended_layout_init (GtkExtendedLayoutIface *iface)
1191 {
1192   iface->get_desired_size = gtk_cell_view_extended_layout_get_desired_size;
1193 }
1194
1195
1196 #define __GTK_CELL_VIEW_C__
1197 #include "gtkaliasdef.c"