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

   1 /* gtkellview.c
   2  * Copyright (C) 2002, 2003  Kristian Rietveld <kris@gtk.org>
   3  *
   4  * This library is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Library General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2 of the License, or (at your option) any later version.
   8  *
   9  * This library is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * Library General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Library General Public
  15  * License along with this library; if not, write to the
  16  * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  17  * Boston, MA 02111-1307, USA.
  18  */
  19
  20 #include "config.h"
  21 #include <string.h>
  22 #include "gtkcellview.h"
  23 #include "gtkcelllayout.h"
  24 #include "gtkintl.h"
  25 #include "gtkcellrenderertext.h"
  26 #include "gtkcellrendererpixbuf.h"
  27 #include "gtkprivate.h"
  28 #include <gobject/gmarshal.h>
  29 #include "gtkbuildable.h"
  30 #include "gtkalias.h"
  31
  32 typedef struct _GtkCellViewCellInfo GtkCellViewCellInfo;
  33 struct _GtkCellViewCellInfo
  34 {
  35   GtkCellRenderer *cell;
  36
  37   gint requested_width;
  38   gint real_width;
  39   guint expand : 1;
  40   guint pack : 1;
  41
  42   GSList *attributes;
  43
  44   GtkCellLayoutDataFunc func;
  45   gpointer func_data;
  46   GDestroyNotify destroy;
  47 };
  48
  49 struct _GtkCellViewPrivate
  50 {
  51   GtkTreeModel *model;
  52   GtkTreeRowReference *displayed_row;
  53   GList *cell_list;
  54   gint spacing;
  55
  56   GdkColor background;
  57   gboolean background_set;
  58 };
  59
  60
  61 static void        gtk_cell_view_cell_layout_init         (GtkCellLayoutIface *iface);
  62 static void        gtk_cell_view_get_property             (GObject           *object,
  63                                                            guint             param_id,
  64                                                            GValue           *value,
  65                                                            GParamSpec       *pspec);
  66 static void        gtk_cell_view_set_property             (GObject          *object,
  67                                                            guint             param_id,
  68                                                            const GValue     *value,
  69                                                            GParamSpec       *pspec);
  70 static void        gtk_cell_view_finalize                 (GObject          *object);
  71 static void        gtk_cell_view_size_request             (GtkWidget        *widget,
  72                                                            GtkRequisition   *requisition);
  73 static void        gtk_cell_view_size_allocate            (GtkWidget        *widget,
  74                                                            GtkAllocation    *allocation);
  75 static gboolean    gtk_cell_view_expose                   (GtkWidget        *widget,
  76                                                            GdkEventExpose   *event);
  77 static void        gtk_cell_view_set_value                (GtkCellView     *cell_view,
  78                                                            GtkCellRenderer *renderer,
  79                                                            gchar           *property,
  80                                                            GValue          *value);
  81 static GtkCellViewCellInfo *gtk_cell_view_get_cell_info   (GtkCellView      *cellview,
  82                                                            GtkCellRenderer  *renderer);
  83 static void        gtk_cell_view_set_cell_data            (GtkCellView      *cell_view);
  84
  85
  86 static void        gtk_cell_view_cell_layout_pack_start        (GtkCellLayout         *layout,
  87                                                                 GtkCellRenderer       *renderer,
  88                                                                 gboolean               expand);
  89 static void        gtk_cell_view_cell_layout_pack_end          (GtkCellLayout         *layout,
  90                                                                 GtkCellRenderer       *renderer,
  91                                                                 gboolean               expand);
  92 static void        gtk_cell_view_cell_layout_add_attribute     (GtkCellLayout         *layout,
  93                                                                 GtkCellRenderer       *renderer,
  94                                                                 const gchar           *attribute,
  95                                                                 gint                   column);
  96 static void       gtk_cell_view_cell_layout_clear              (GtkCellLayout         *layout);
  97 static void       gtk_cell_view_cell_layout_clear_attributes   (GtkCellLayout         *layout,
  98                                                                 GtkCellRenderer       *renderer);
  99 static void       gtk_cell_view_cell_layout_set_cell_data_func (GtkCellLayout         *layout,
 100                                                                 GtkCellRenderer       *cell,
 101                                                                 GtkCellLayoutDataFunc  func,
 102                                                                 gpointer               func_data,
 103                                                                 GDestroyNotify         destroy);
 104 static void       gtk_cell_view_cell_layout_reorder            (GtkCellLayout         *layout,
 105                                                                 GtkCellRenderer       *cell,
 106                                                                 gint                   position);
 107 static GList *    gtk_cell_view_cell_layout_get_cells          (GtkCellLayout         *layout);
 108
 109 /* buildable */
 110 static void       gtk_cell_view_buildable_init                 (GtkBuildableIface     *iface);
 111 static gboolean   gtk_cell_view_buildable_custom_tag_start     (GtkBuildable          *buildable,
 112                                                                 GtkBuilder            *builder,
 113                                                                 GObject               *child,
 114                                                                 const gchar           *tagname,
 115                                                                 GMarkupParser         *parser,
 116                                                                 gpointer              *data);
 117 static void       gtk_cell_view_buildable_custom_tag_end       (GtkBuildable          *buildable,
 118                                                                 GtkBuilder            *builder,
 119                                                                 GObject               *child,
 120                                                                 const gchar           *tagname,
 121                                                                 gpointer              *data);
 122
 123 static GtkBuildableIface *parent_buildable_iface;
 124
 125 #define GTK_CELL_VIEW_GET_PRIVATE(obj)    (G_TYPE_INSTANCE_GET_PRIVATE ((obj), GTK_TYPE_CELL_VIEW, GtkCellViewPrivate))
 126
 127 enum
 128 {
 129   PROP_0,
 130   PROP_BACKGROUND,
 131   PROP_BACKGROUND_GDK,
 132   PROP_BACKGROUND_SET,
 133   PROP_MODEL
 134 };
 135
 136 G_DEFINE_TYPE_WITH_CODE (GtkCellView, gtk_cell_view, GTK_TYPE_WIDGET,
 137                          G_IMPLEMENT_INTERFACE (GTK_TYPE_CELL_LAYOUT,
 138                                                 gtk_cell_view_cell_layout_init)
 139                          G_IMPLEMENT_INTERFACE (GTK_TYPE_BUILDABLE,
 140                                                 gtk_cell_view_buildable_init))
 141
 142 static void
 143 gtk_cell_view_class_init (GtkCellViewClass *klass)
 144 {
 145   GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
 146   GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
 147
 148   gobject_class->get_property = gtk_cell_view_get_property;
 149   gobject_class->set_property = gtk_cell_view_set_property;
 150   gobject_class->finalize = gtk_cell_view_finalize;
 151
 152   widget_class->expose_event = gtk_cell_view_expose;
 153   widget_class->size_allocate = gtk_cell_view_size_allocate;
 154   widget_class->size_request = gtk_cell_view_size_request;
 155
 156   /* properties */
 157   g_object_class_install_property (gobject_class,
 158                                    PROP_BACKGROUND,
 159                                    g_param_spec_string ("background",
 160                                                         P_("Background color name"),
 161                                                         P_("Background color as a string"),
 162                                                         NULL,
 163                                                         GTK_PARAM_WRITABLE));
 164   g_object_class_install_property (gobject_class,
 165                                    PROP_BACKGROUND_GDK,
 166                                    g_param_spec_boxed ("background-gdk",
 167                                                       P_("Background color"),
 168                                                       P_("Background color as a GdkColor"),
 169                                                       GDK_TYPE_COLOR,
 170                                                       GTK_PARAM_READWRITE));
 171
 172   /**
 173    * GtkCellView:model
 174    *
 175    * The model for cell view
 176    *
 177    * since 2.10
 178    */
 179   g_object_class_install_property (gobject_class,
 180                                    PROP_MODEL,
 181                                    g_param_spec_object  ("model",
 182                                                          P_("CellView model"),
 183                                                          P_("The model for cell view"),
 184                                                          GTK_TYPE_TREE_MODEL,
 185                                                          GTK_PARAM_READWRITE));
 186
 187 #define ADD_SET_PROP(propname, propval, nick, blurb) g_object_class_install_property (gobject_class, propval, g_param_spec_boolean (propname, nick, blurb, FALSE, GTK_PARAM_READWRITE))
 188
 189   ADD_SET_PROP ("background-set", PROP_BACKGROUND_SET,
 190                 P_("Background set"),
 191                 P_("Whether this tag affects the background color"));
 192
 193   g_type_class_add_private (gobject_class, sizeof (GtkCellViewPrivate));
 194 }
 195
 196 static void
 197 gtk_cell_view_buildable_init (GtkBuildableIface *iface)
 198 {
 199   parent_buildable_iface = g_type_interface_peek_parent (iface);
 200   iface->add_child = _gtk_cell_layout_buildable_add_child;
 201   iface->custom_tag_start = gtk_cell_view_buildable_custom_tag_start;
 202   iface->custom_tag_end = gtk_cell_view_buildable_custom_tag_end;
 203 }
 204
 205 static void
 206 gtk_cell_view_cell_layout_init (GtkCellLayoutIface *iface)
 207 {
 208   iface->pack_start = gtk_cell_view_cell_layout_pack_start;
 209   iface->pack_end = gtk_cell_view_cell_layout_pack_end;
 210   iface->clear = gtk_cell_view_cell_layout_clear;
 211   iface->add_attribute = gtk_cell_view_cell_layout_add_attribute;
 212   iface->set_cell_data_func = gtk_cell_view_cell_layout_set_cell_data_func;
 213   iface->clear_attributes = gtk_cell_view_cell_layout_clear_attributes;
 214   iface->reorder = gtk_cell_view_cell_layout_reorder;
 215   iface->get_cells = gtk_cell_view_cell_layout_get_cells;
 216 }
 217
 218 static void
 219 gtk_cell_view_get_property (GObject    *object,
 220                             guint       param_id,
 221                             GValue     *value,
 222                             GParamSpec *pspec)
 223 {
 224   GtkCellView *view = GTK_CELL_VIEW (object);
 225
 226   switch (param_id)
 227     {
 228       case PROP_BACKGROUND_GDK:
 229         {
 230           GdkColor color;
 231
 232           color = view->priv->background;
 233
 234           g_value_set_boxed (value, &color);
 235         }
 236         break;
 237       case PROP_BACKGROUND_SET:
 238         g_value_set_boolean (value, view->priv->background_set);
 239         break;
 240       case PROP_MODEL:
 241         g_value_set_object (value, view->priv->model);
 242         break;
 243       default:
 244         G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec);
 245         break;
 246     }
 247 }
 248
 249 static void
 250 gtk_cell_view_set_property (GObject      *object,
 251                             guint         param_id,
 252                             const GValue *value,
 253                             GParamSpec   *pspec)
 254 {
 255   GtkCellView *view = GTK_CELL_VIEW (object);
 256
 257   switch (param_id)
 258     {
 259       case PROP_BACKGROUND:
 260         {
 261           GdkColor color;
 262
 263           if (!g_value_get_string (value))
 264             gtk_cell_view_set_background_color (view, NULL);
 265           else if (gdk_color_parse (g_value_get_string (value), &color))
 266             gtk_cell_view_set_background_color (view, &color);
 267           else
 268             g_warning ("Don't know color `%s'", g_value_get_string (value));
 269
 270           g_object_notify (object, "background-gdk");
 271         }
 272         break;
 273       case PROP_BACKGROUND_GDK:
 274         gtk_cell_view_set_background_color (view, g_value_get_boxed (value));
 275         break;
 276       case PROP_BACKGROUND_SET:
 277         view->priv->background_set = g_value_get_boolean (value);
 278         break;
 279       case PROP_MODEL:
 280         gtk_cell_view_set_model (view, g_value_get_object (value));
 281         break;
 282     default:
 283         G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec);
 284         break;
 285     }
 286 }
 287
 288 static void
 289 gtk_cell_view_init (GtkCellView *cellview)
 290 {
 291   GTK_WIDGET_SET_FLAGS (cellview, GTK_NO_WINDOW);
 292
 293   cellview->priv = GTK_CELL_VIEW_GET_PRIVATE (cellview);
 294 }
 295
 296 static void
 297 gtk_cell_view_finalize (GObject *object)
 298 {
 299   GtkCellView *cellview = GTK_CELL_VIEW (object);
 300
 301   gtk_cell_view_cell_layout_clear (GTK_CELL_LAYOUT (cellview));
 302
 303   if (cellview->priv->model)
 304      g_object_unref (cellview->priv->model);
 305
 306   if (cellview->priv->displayed_row)
 307      gtk_tree_row_reference_free (cellview->priv->displayed_row);
 308
 309   G_OBJECT_CLASS (gtk_cell_view_parent_class)->finalize (object);
 310 }
 311
 312 static void
 313 gtk_cell_view_size_request (GtkWidget      *widget,
 314                             GtkRequisition *requisition)
 315 {
 316   GList *i;
 317   gboolean first_cell = TRUE;
 318   GtkCellView *cellview;
 319
 320   cellview = GTK_CELL_VIEW (widget);
 321
 322   requisition->width = 0;
 323   requisition->height = 0;
 324
 325   if (cellview->priv->displayed_row)
 326     gtk_cell_view_set_cell_data (cellview);
 327
 328   for (i = cellview->priv->cell_list; i; i = i->next)
 329     {
 330       gint width, height;
 331       GtkCellViewCellInfo *info = (GtkCellViewCellInfo *)i->data;
 332
 333       if (!info->cell->visible)
 334         continue;
 335
 336       if (!first_cell)
 337         requisition->width += cellview->priv->spacing;
 338
 339       gtk_cell_renderer_get_size (info->cell, widget, NULL, NULL, NULL,
 340                                   &width, &height);
 341
 342       info->requested_width = width;
 343       requisition->width += width;
 344       requisition->height = MAX (requisition->height, height);
 345
 346       first_cell = FALSE;
 347     }
 348 }
 349
 350 static void
 351 gtk_cell_view_size_allocate (GtkWidget     *widget,
 352                              GtkAllocation *allocation)
 353 {
 354   GList *i;
 355   gint expand_cell_count = 0;
 356   gint full_requested_width = 0;
 357   gint extra_space;
 358   GtkCellView *cellview;
 359
 360   widget->allocation = *allocation;
 361
 362   cellview = GTK_CELL_VIEW (widget);
 363
 364   /* checking how much extra space we have */
 365   for (i = cellview->priv->cell_list; i; i = i->next)
 366     {
 367       GtkCellViewCellInfo *info = (GtkCellViewCellInfo *)i->data;
 368
 369       if (!info->cell->visible)
 370         continue;
 371
 372       if (info->expand)
 373         expand_cell_count++;
 374
 375       full_requested_width += info->requested_width;
 376     }
 377
 378   extra_space = widget->allocation.width - full_requested_width;
 379   if (extra_space < 0)
 380     extra_space = 0;
 381   else if (extra_space > 0 && expand_cell_count > 0)
 382     extra_space /= expand_cell_count;
 383
 384   for (i = cellview->priv->cell_list; i; i = i->next)
 385     {
 386       GtkCellViewCellInfo *info = (GtkCellViewCellInfo *)i->data;
 387
 388       if (!info->cell->visible)
 389         continue;
 390
 391       info->real_width = info->requested_width +
 392         (info->expand ? extra_space : 0);
 393     }
 394 }
 395
 396 static gboolean
 397 gtk_cell_view_expose (GtkWidget      *widget,
 398                       GdkEventExpose *event)
 399 {
 400   GList *i;
 401   GtkCellView *cellview;
 402   GdkRectangle area;
 403   GtkCellRendererState state;
 404   gboolean rtl = (gtk_widget_get_direction(widget) == GTK_TEXT_DIR_RTL);
 405
 406   cellview = GTK_CELL_VIEW (widget);
 407
 408   if (! GTK_WIDGET_DRAWABLE (widget))
 409     return FALSE;
 410
 411   /* "blank" background */
 412   if (cellview->priv->background_set)
 413     {
 414       cairo_t *cr = gdk_cairo_create (GTK_WIDGET (cellview)->window);
 415
 416       gdk_cairo_rectangle (cr, &widget->allocation);
 417       cairo_set_source_rgb (cr,
 418                             cellview->priv->background.red / 65535.,
 419                             cellview->priv->background.green / 65535.,
 420                             cellview->priv->background.blue / 65535.);
 421       cairo_fill (cr);
 422
 423       cairo_destroy (cr);
 424     }
 425
 426   /* set cell data (if available) */
 427   if (cellview->priv->displayed_row)
 428     gtk_cell_view_set_cell_data (cellview);
 429   else if (cellview->priv->model)
 430     return FALSE;
 431
 432   /* render cells */
 433   area = widget->allocation;
 434
 435   /* we draw on our very own window, initialize x and y to zero */
 436   area.x = widget->allocation.x + (rtl ? widget->allocation.width : 0);
 437   area.y = widget->allocation.y;
 438
 439   if (GTK_WIDGET_STATE (widget) == GTK_STATE_PRELIGHT)
 440     state = GTK_CELL_RENDERER_PRELIT;
 441   else
 442     state = 0;
 443
 444   /* PACK_START */
 445   for (i = cellview->priv->cell_list; i; i = i->next)
 446     {
 447       GtkCellViewCellInfo *info = (GtkCellViewCellInfo *)i->data;
 448
 449       if (info->pack == GTK_PACK_END)
 450         continue;
 451
 452       if (!info->cell->visible)
 453         continue;
 454
 455       area.width = info->real_width;
 456       if (rtl)
 457          area.x -= area.width;
 458
 459       gtk_cell_renderer_render (info->cell,
 460                                 event->window,
 461                                 widget,
 462                                 /* FIXME! */
 463                                 &area, &area, &event->area, state);
 464
 465       if (!rtl)
 466          area.x += info->real_width;
 467     }
 468
 469    area.x = rtl ? widget->allocation.x : (widget->allocation.x + widget->allocation.width);
 470
 471   /* PACK_END */
 472   for (i = cellview->priv->cell_list; i; i = i->next)
 473     {
 474       GtkCellViewCellInfo *info = (GtkCellViewCellInfo *)i->data;
 475
 476       if (info->pack == GTK_PACK_START)
 477         continue;
 478
 479       if (!info->cell->visible)
 480         continue;
 481
 482       area.width = info->real_width;
 483       if (!rtl)
 484          area.x -= area.width;
 485
 486       gtk_cell_renderer_render (info->cell,
 487                                 widget->window,
 488                                 widget,
 489                                 /* FIXME ! */
 490                                 &area, &area, &event->area, state);
 491       if (rtl)
 492          area.x += info->real_width;
 493     }
 494
 495   return FALSE;
 496 }
 497
 498 static GtkCellViewCellInfo *
 499 gtk_cell_view_get_cell_info (GtkCellView     *cellview,
 500                              GtkCellRenderer *renderer)
 501 {
 502   GList *i;
 503
 504   for (i = cellview->priv->cell_list; i; i = i->next)
 505     {
 506       GtkCellViewCellInfo *info = (GtkCellViewCellInfo *)i->data;
 507
 508       if (info->cell == renderer)
 509         return info;
 510     }
 511
 512   return NULL;
 513 }
 514
 515 static void
 516 gtk_cell_view_set_cell_data (GtkCellView *cell_view)
 517 {
 518   GList *i;
 519   GtkTreeIter iter;
 520   GtkTreePath *path;
 521
 522   g_return_if_fail (cell_view->priv->displayed_row != NULL);
 523
 524   path = gtk_tree_row_reference_get_path (cell_view->priv->displayed_row);
 525   if (!path)
 526     return;
 527
 528   gtk_tree_model_get_iter (cell_view->priv->model, &iter, path);
 529   gtk_tree_path_free (path);
 530
 531   for (i = cell_view->priv->cell_list; i; i = i->next)
 532     {
 533       GSList *j;
 534       GtkCellViewCellInfo *info = i->data;
 535
 536       g_object_freeze_notify (G_OBJECT (info->cell));
 537
 538       for (j = info->attributes; j && j->next; j = j->next->next)
 539         {
 540           gchar *property = j->data;
 541           gint column = GPOINTER_TO_INT (j->next->data);
 542           GValue value = {0, };
 543
 544           gtk_tree_model_get_value (cell_view->priv->model, &iter,
 545                                     column, &value);
 546           g_object_set_property (G_OBJECT (info->cell),
 547                                  property, &value);
 548           g_value_unset (&value);
 549         }
 550
 551       if (info->func)
 552         (* info->func) (GTK_CELL_LAYOUT (cell_view),
 553                         info->cell,
 554                         cell_view->priv->model,
 555                         &iter,
 556                         info->func_data);
 557
 558       g_object_thaw_notify (G_OBJECT (info->cell));
 559     }
 560 }
 561
 562 /* GtkCellLayout implementation */
 563 static void
 564 gtk_cell_view_cell_layout_pack_start (GtkCellLayout   *layout,
 565                                       GtkCellRenderer *renderer,
 566                                       gboolean         expand)
 567 {
 568   GtkCellViewCellInfo *info;
 569   GtkCellView *cellview = GTK_CELL_VIEW (layout);
 570
 571   g_return_if_fail (!gtk_cell_view_get_cell_info (cellview, renderer));
 572
 573   g_object_ref_sink (renderer);
 574
 575   info = g_slice_new0 (GtkCellViewCellInfo);
 576   info->cell = renderer;
 577   info->expand = expand ? TRUE : FALSE;
 578   info->pack = GTK_PACK_START;
 579
 580   cellview->priv->cell_list = g_list_append (cellview->priv->cell_list, info);
 581 }
 582
 583 static void
 584 gtk_cell_view_cell_layout_pack_end (GtkCellLayout   *layout,
 585                                     GtkCellRenderer *renderer,
 586                                     gboolean         expand)
 587 {
 588   GtkCellViewCellInfo *info;
 589   GtkCellView *cellview = GTK_CELL_VIEW (layout);
 590
 591   g_return_if_fail (!gtk_cell_view_get_cell_info (cellview, renderer));
 592
 593   g_object_ref_sink (renderer);
 594
 595   info = g_slice_new0 (GtkCellViewCellInfo);
 596   info->cell = renderer;
 597   info->expand = expand ? TRUE : FALSE;
 598   info->pack = GTK_PACK_END;
 599
 600   cellview->priv->cell_list = g_list_append (cellview->priv->cell_list, info);
 601 }
 602
 603 static void
 604 gtk_cell_view_cell_layout_add_attribute (GtkCellLayout   *layout,
 605                                          GtkCellRenderer *renderer,
 606                                          const gchar     *attribute,
 607                                          gint             column)
 608 {
 609   GtkCellViewCellInfo *info;
 610   GtkCellView *cellview = GTK_CELL_VIEW (layout);
 611
 612   info = gtk_cell_view_get_cell_info (cellview, renderer);
 613   g_return_if_fail (info != NULL);
 614
 615   info->attributes = g_slist_prepend (info->attributes,
 616                                       GINT_TO_POINTER (column));
 617   info->attributes = g_slist_prepend (info->attributes,
 618                                       g_strdup (attribute));
 619 }
 620
 621 static void
 622 gtk_cell_view_cell_layout_clear (GtkCellLayout *layout)
 623 {
 624   GtkCellView *cellview = GTK_CELL_VIEW (layout);
 625
 626   while (cellview->priv->cell_list)
 627     {
 628       GtkCellViewCellInfo *info = (GtkCellViewCellInfo *)cellview->priv->cell_list->data;
 629
 630       gtk_cell_view_cell_layout_clear_attributes (layout, info->cell);
 631       g_object_unref (info->cell);
 632       g_slice_free (GtkCellViewCellInfo, info);
 633       cellview->priv->cell_list = g_list_delete_link (cellview->priv->cell_list,
 634                                                       cellview->priv->cell_list);
 635     }
 636 }
 637
 638 static void
 639 gtk_cell_view_cell_layout_set_cell_data_func (GtkCellLayout         *layout,
 640                                               GtkCellRenderer       *cell,
 641                                               GtkCellLayoutDataFunc  func,
 642                                               gpointer               func_data,
 643                                               GDestroyNotify         destroy)
 644 {
 645   GtkCellView *cellview = GTK_CELL_VIEW (layout);
 646   GtkCellViewCellInfo *info;
 647
 648   info = gtk_cell_view_get_cell_info (cellview, cell);
 649   g_return_if_fail (info != NULL);
 650
 651   if (info->destroy)
 652     {
 653       GDestroyNotify d = info->destroy;
 654
 655       info->destroy = NULL;
 656       d (info->func_data);
 657     }
 658
 659   info->func = func;
 660   info->func_data = func_data;
 661   info->destroy = destroy;
 662 }
 663
 664 static void
 665 gtk_cell_view_cell_layout_clear_attributes (GtkCellLayout   *layout,
 666                                             GtkCellRenderer *renderer)
 667 {
 668   GtkCellView *cellview = GTK_CELL_VIEW (layout);
 669   GtkCellViewCellInfo *info;
 670   GSList *list;
 671
 672   info = gtk_cell_view_get_cell_info (cellview, renderer);
 673   if (info != NULL)
 674     {
 675       list = info->attributes;
 676       while (list && list->next)
 677         {
 678           g_free (list->data);
 679           list = list->next->next;
 680         }
 681
 682       g_slist_free (info->attributes);
 683       info->attributes = NULL;
 684     }
 685 }
 686
 687 static void
 688 gtk_cell_view_cell_layout_reorder (GtkCellLayout   *layout,
 689                                    GtkCellRenderer *cell,
 690                                    gint             position)
 691 {
 692   GtkCellView *cellview = GTK_CELL_VIEW (layout);
 693   GtkCellViewCellInfo *info;
 694   GList *link;
 695
 696   info = gtk_cell_view_get_cell_info (cellview, cell);
 697
 698   g_return_if_fail (info != NULL);
 699   g_return_if_fail (position >= 0);
 700
 701   link = g_list_find (cellview->priv->cell_list, info);
 702
 703   g_return_if_fail (link != NULL);
 704
 705   cellview->priv->cell_list = g_list_delete_link (cellview->priv->cell_list,
 706                                                   link);
 707   cellview->priv->cell_list = g_list_insert (cellview->priv->cell_list,
 708                                              info, position);
 709
 710   gtk_widget_queue_draw (GTK_WIDGET (cellview));
 711 }
 712
 713 /**
 714  * gtk_cell_view_new:
 715  *
 716  * Creates a new #GtkCellView widget.
 717  *
 718  * Return value: A newly created #GtkCellView widget.
 719  *
 720  * Since: 2.6
 721  */
 722 GtkWidget *
 723 gtk_cell_view_new (void)
 724 {
 725   GtkCellView *cellview;
 726
 727   cellview = g_object_new (gtk_cell_view_get_type (), NULL);
 728
 729   return GTK_WIDGET (cellview);
 730 }
 731
 732 /**
 733  * gtk_cell_view_new_with_text:
 734  * @text: the text to display in the cell view
 735  *
 736  * Creates a new #GtkCellView widget, adds a #GtkCellRendererText
 737  * to it, and makes its show @text.
 738  *
 739  * Return value: A newly created #GtkCellView widget.
 740  *
 741  * Since: 2.6
 742  */
 743 GtkWidget *
 744 gtk_cell_view_new_with_text (const gchar *text)
 745 {
 746   GtkCellView *cellview;
 747   GtkCellRenderer *renderer;
 748   GValue value = {0, };
 749
 750   cellview = GTK_CELL_VIEW (gtk_cell_view_new ());
 751
 752   renderer = gtk_cell_renderer_text_new ();
 753   gtk_cell_view_cell_layout_pack_start (GTK_CELL_LAYOUT (cellview),
 754                                         renderer, TRUE);
 755
 756   g_value_init (&value, G_TYPE_STRING);
 757   g_value_set_string (&value, text);
 758   gtk_cell_view_set_value (cellview, renderer, "text", &value);
 759   g_value_unset (&value);
 760
 761   return GTK_WIDGET (cellview);
 762 }
 763
 764 /**
 765  * gtk_cell_view_new_with_markup:
 766  * @markup: the text to display in the cell view
 767  *
 768  * Creates a new #GtkCellView widget, adds a #GtkCellRendererText
 769  * to it, and makes its show @markup. The text can text can be
 770  * marked up with the <link linkend="PangoMarkupFormat">Pango text
 771  * markup language</link>.
 772  *
 773  * Return value: A newly created #GtkCellView widget.
 774  *
 775  * Since: 2.6
 776  */
 777 GtkWidget *
 778 gtk_cell_view_new_with_markup (const gchar *markup)
 779 {
 780   GtkCellView *cellview;
 781   GtkCellRenderer *renderer;
 782   GValue value = {0, };
 783
 784   cellview = GTK_CELL_VIEW (gtk_cell_view_new ());
 785
 786   renderer = gtk_cell_renderer_text_new ();
 787   gtk_cell_view_cell_layout_pack_start (GTK_CELL_LAYOUT (cellview),
 788                                         renderer, TRUE);
 789
 790   g_value_init (&value, G_TYPE_STRING);
 791   g_value_set_string (&value, markup);
 792   gtk_cell_view_set_value (cellview, renderer, "markup", &value);
 793   g_value_unset (&value);
 794
 795   return GTK_WIDGET (cellview);
 796 }
 797
 798 /**
 799  * gtk_cell_view_new_with_pixbuf:
 800  * @pixbuf: the image to display in the cell view
 801  *
 802  * Creates a new #GtkCellView widget, adds a #GtkCellRendererPixbuf
 803  * to it, and makes its show @pixbuf.
 804  *
 805  * Return value: A newly created #GtkCellView widget.
 806  *
 807  * Since: 2.6
 808  */
 809 GtkWidget *
 810 gtk_cell_view_new_with_pixbuf (GdkPixbuf *pixbuf)
 811 {
 812   GtkCellView *cellview;
 813   GtkCellRenderer *renderer;
 814   GValue value = {0, };
 815
 816   cellview = GTK_CELL_VIEW (gtk_cell_view_new ());
 817
 818   renderer = gtk_cell_renderer_pixbuf_new ();
 819   gtk_cell_view_cell_layout_pack_start (GTK_CELL_LAYOUT (cellview),
 820                                         renderer, TRUE);
 821
 822   g_value_init (&value, GDK_TYPE_PIXBUF);
 823   g_value_set_object (&value, pixbuf);
 824   gtk_cell_view_set_value (cellview, renderer, "pixbuf", &value);
 825   g_value_unset (&value);
 826
 827   return GTK_WIDGET (cellview);
 828 }
 829
 830 /**
 831  * gtk_cell_view_set_value:
 832  * @cell_view: a #GtkCellView widget
 833  * @renderer: one of the renderers of @cell_view
 834  * @property: the name of the property of @renderer to set
 835  * @value: the new value to set the property to
 836  *
 837  * Sets a property of a cell renderer of @cell_view, and
 838  * makes sure the display of @cell_view is updated.
 839  *
 840  * Since: 2.6
 841  */
 842 static void
 843 gtk_cell_view_set_value (GtkCellView     *cell_view,
 844                          GtkCellRenderer *renderer,
 845                          gchar           *property,
 846                          GValue          *value)
 847 {
 848   g_object_set_property (G_OBJECT (renderer), property, value);
 849
 850   /* force resize and redraw */
 851   gtk_widget_queue_resize (GTK_WIDGET (cell_view));
 852   gtk_widget_queue_draw (GTK_WIDGET (cell_view));
 853 }
 854
 855 /**
 856  * gtk_cell_view_set_model:
 857  * @cell_view: a #GtkCellView
 858  * @model: a #GtkTreeModel
 859  *
 860  * Sets the model for @cell_view.  If @cell_view already has a model
 861  * set, it will remove it before setting the new model.  If @model is
 862  * %NULL, then it will unset the old model.
 863  *
 864  * Since: 2.6
 865  */
 866 void
 867 gtk_cell_view_set_model (GtkCellView  *cell_view,
 868                          GtkTreeModel *model)
 869 {
 870   g_return_if_fail (GTK_IS_CELL_VIEW (cell_view));
 871   g_return_if_fail (model == NULL || GTK_IS_TREE_MODEL (model));
 872
 873   if (cell_view->priv->model)
 874     {
 875       if (cell_view->priv->displayed_row)
 876         gtk_tree_row_reference_free (cell_view->priv->displayed_row);
 877       cell_view->priv->displayed_row = NULL;
 878
 879       g_object_unref (cell_view->priv->model);
 880       cell_view->priv->model = NULL;
 881     }
 882
 883   cell_view->priv->model = model;
 884
 885   if (cell_view->priv->model)
 886     g_object_ref (cell_view->priv->model);
 887 }
 888
 889 /**
 890  * gtk_cell_view_get_model:
 891  * @cell_view: a #GtkCellView
 892  *
 893  * Returns the model for @cell_view. If no model is used %NULL is
 894  * returned.
 895  *
 896  * Returns: a #GtkTreeModel used or %NULL
 897  *
 898  * Since: 2.16
 899  **/
 900 GtkTreeModel *
 901 gtk_cell_view_get_model (GtkCellView *cell_view)
 902 {
 903   g_return_val_if_fail (GTK_IS_CELL_VIEW (cell_view), NULL);
 904
 905   return cell_view->priv->model;
 906 }
 907
 908 /**
 909  * gtk_cell_view_set_displayed_row:
 910  * @cell_view: a #GtkCellView
 911  * @path: a #GtkTreePath or %NULL to unset.
 912  *
 913  * Sets the row of the model that is currently displayed
 914  * by the #GtkCellView. If the path is unset, then the
 915  * contents of the cellview "stick" at their last value;
 916  * this is not normally a desired result, but may be
 917  * a needed intermediate state if say, the model for
 918  * the #GtkCellView becomes temporarily empty.
 919  *
 920  * Since: 2.6
 921  **/
 922 void
 923 gtk_cell_view_set_displayed_row (GtkCellView *cell_view,
 924                                  GtkTreePath *path)
 925 {
 926   g_return_if_fail (GTK_IS_CELL_VIEW (cell_view));
 927   g_return_if_fail (GTK_IS_TREE_MODEL (cell_view->priv->model));
 928
 929   if (cell_view->priv->displayed_row)
 930     gtk_tree_row_reference_free (cell_view->priv->displayed_row);
 931
 932   if (path)
 933     {
 934       cell_view->priv->displayed_row =
 935         gtk_tree_row_reference_new (cell_view->priv->model, path);
 936     }
 937   else
 938     cell_view->priv->displayed_row = NULL;
 939
 940   /* force resize and redraw */
 941   gtk_widget_queue_resize (GTK_WIDGET (cell_view));
 942   gtk_widget_queue_draw (GTK_WIDGET (cell_view));
 943 }
 944
 945 /**
 946  * gtk_cell_view_get_displayed_row:
 947  * @cell_view: a #GtkCellView
 948  *
 949  * Returns a #GtkTreePath referring to the currently
 950  * displayed row. If no row is currently displayed,
 951  * %NULL is returned.
 952  *
 953  * Returns: the currently displayed row or %NULL
 954  *
 955  * Since: 2.6
 956  */
 957 GtkTreePath *
 958 gtk_cell_view_get_displayed_row (GtkCellView *cell_view)
 959 {
 960   g_return_val_if_fail (GTK_IS_CELL_VIEW (cell_view), NULL);
 961
 962   if (!cell_view->priv->displayed_row)
 963     return NULL;
 964
 965   return gtk_tree_row_reference_get_path (cell_view->priv->displayed_row);
 966 }
 967
 968 /**
 969  * gtk_cell_view_get_size_of_row:
 970  * @cell_view: a #GtkCellView
 971  * @path: a #GtkTreePath
 972  * @requisition: return location for the size
 973  *
 974  * Sets @requisition to the size needed by @cell_view to display
 975  * the model row pointed to by @path.
 976  *
 977  * Return value: %TRUE
 978  *
 979  * Since: 2.6
 980  */
 981 gboolean
 982 gtk_cell_view_get_size_of_row (GtkCellView    *cell_view,
 983                                GtkTreePath    *path,
 984                                GtkRequisition *requisition)
 985 {
 986   GtkTreeRowReference *tmp;
 987   GtkRequisition req;
 988
 989   g_return_val_if_fail (GTK_IS_CELL_VIEW (cell_view), FALSE);
 990   g_return_val_if_fail (path != NULL, FALSE);
 991   g_return_val_if_fail (requisition != NULL, FALSE);
 992
 993   tmp = cell_view->priv->displayed_row;
 994   cell_view->priv->displayed_row =
 995     gtk_tree_row_reference_new (cell_view->priv->model, path);
 996
 997   gtk_cell_view_size_request (GTK_WIDGET (cell_view), requisition);
 998
 999   gtk_tree_row_reference_free (cell_view->priv->displayed_row);
1000   cell_view->priv->displayed_row = tmp;
1001
1002   /* restore actual size info */
1003   gtk_cell_view_size_request (GTK_WIDGET (cell_view), &req);
1004
1005   return TRUE;
1006 }
1007
1008 /**
1009  * gtk_cell_view_set_background_color:
1010  * @cell_view: a #GtkCellView
1011  * @color: the new background color
1012  *
1013  * Sets the background color of @view.
1014  *
1015  * Since: 2.6
1016  */
1017 void
1018 gtk_cell_view_set_background_color (GtkCellView    *cell_view,
1019                                     const GdkColor *color)
1020 {
1021   g_return_if_fail (GTK_IS_CELL_VIEW (cell_view));
1022
1023   if (color)
1024     {
1025       if (!cell_view->priv->background_set)
1026         {
1027           cell_view->priv->background_set = TRUE;
1028           g_object_notify (G_OBJECT (cell_view), "background-set");
1029         }
1030
1031       cell_view->priv->background = *color;
1032     }
1033   else
1034     {
1035       if (cell_view->priv->background_set)
1036         {
1037           cell_view->priv->background_set = FALSE;
1038           g_object_notify (G_OBJECT (cell_view), "background-set");
1039         }
1040     }
1041
1042   gtk_widget_queue_draw (GTK_WIDGET (cell_view));
1043 }
1044
1045 /**
1046  * gtk_cell_view_get_cell_renderers:
1047  * @cell_view: a #GtkCellView
1048  *
1049  * Returns the cell renderers which have been added to @cell_view.
1050  *
1051  * Return value: a list of cell renderers. The list, but not the
1052  *   renderers has been newly allocated and should be freed with
1053  *   g_list_free() when no longer needed.
1054  *
1055  * Since: 2.6
1056  *
1057  * Deprecated: 2.18: use gtk_cell_layout_get_cells() instead.
1058  **/
1059 GList *
1060 gtk_cell_view_get_cell_renderers (GtkCellView *cell_view)
1061 {
1062   GList *retval = NULL, *list;
1063
1064   g_return_val_if_fail (cell_view != NULL, NULL);
1065
1066   gtk_cell_view_set_cell_data (cell_view);
1067
1068   for (list = cell_view->priv->cell_list; list; list = list->next)
1069     {
1070       GtkCellViewCellInfo *info = (GtkCellViewCellInfo *)list->data;
1071
1072       retval = g_list_prepend (retval, info->cell);
1073     }
1074
1075   return g_list_reverse (retval);
1076 }
1077
1078 static GList *
1079 gtk_cell_view_cell_layout_get_cells (GtkCellLayout *layout)
1080 {
1081   return gtk_cell_view_get_cell_renderers (GTK_CELL_VIEW (layout));
1082 }
1083
1084
1085 static gboolean
1086 gtk_cell_view_buildable_custom_tag_start (GtkBuildable  *buildable,
1087                                           GtkBuilder    *builder,
1088                                           GObject       *child,
1089                                           const gchar   *tagname,
1090                                           GMarkupParser *parser,
1091                                           gpointer      *data)
1092 {
1093   if (parent_buildable_iface->custom_tag_start &&
1094       parent_buildable_iface->custom_tag_start (buildable, builder, child,
1095                                                 tagname, parser, data))
1096     return TRUE;
1097
1098   return _gtk_cell_layout_buildable_custom_tag_start (buildable, builder, child,
1099                                                       tagname, parser, data);
1100 }
1101
1102 static void
1103 gtk_cell_view_buildable_custom_tag_end (GtkBuildable *buildable,
1104                                         GtkBuilder   *builder,
1105                                         GObject      *child,
1106                                         const gchar  *tagname,
1107                                         gpointer     *data)
1108 {
1109   if (strcmp (tagname, "attributes") == 0)
1110     _gtk_cell_layout_buildable_custom_tag_end (buildable, builder, child, tagname,
1111                                                data);
1112   else if (parent_buildable_iface->custom_tag_end)
1113     parent_buildable_iface->custom_tag_end (buildable, builder, child, tagname,
1114                                             data);
1115 }
1116
1117
1118 #define __GTK_CELL_VIEW_C__
1119 #include "gtkaliasdef.c"