forked from AuroraMiddleware/gtk
289 lines
7.4 KiB
C
289 lines
7.4 KiB
C
/* gtktreedatalist.c
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* Copyright (C) 2000 Red Hat, Inc., Jonathan Blandford <jrb@redhat.com>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#include "gtktreedatalist.h"
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#include "gobject/gboxed.h"
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#include "gobject/gvalue.h"
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#include "gobject/gvaluetypes.h"
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/* node allocation
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*/
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struct _GAllocator /* from gmem.c */
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{
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gchar *name;
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guint16 n_preallocs;
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guint is_unused : 1;
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guint type : 4;
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GAllocator *last;
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GMemChunk *mem_chunk;
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GtkTreeDataList *free_nodes;
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};
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G_LOCK_DEFINE_STATIC (current_allocator);
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static GAllocator *current_allocator = NULL;
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/* HOLDS: current_allocator_lock */
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static void
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gtk_tree_data_list_validate_allocator (GAllocator *allocator)
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{
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g_return_if_fail (allocator != NULL);
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g_return_if_fail (allocator->is_unused == TRUE);
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if (allocator->type != G_ALLOCATOR_NODE)
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{
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allocator->type = G_ALLOCATOR_NODE;
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if (allocator->mem_chunk)
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{
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g_mem_chunk_destroy (allocator->mem_chunk);
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allocator->mem_chunk = NULL;
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}
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}
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if (!allocator->mem_chunk)
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{
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allocator->mem_chunk = g_mem_chunk_new (allocator->name,
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sizeof (GtkTreeDataList),
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sizeof (GtkTreeDataList) * allocator->n_preallocs,
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G_ALLOC_ONLY);
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allocator->free_nodes = NULL;
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}
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allocator->is_unused = FALSE;
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}
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void
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_gtk_tree_data_list_push_allocator (GAllocator *allocator)
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{
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G_LOCK (current_allocator);
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gtk_tree_data_list_validate_allocator ( allocator );
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allocator->last = current_allocator;
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current_allocator = allocator;
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G_UNLOCK (current_allocator);
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}
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void
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_gtk_tree_data_list_pop_allocator (void)
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{
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G_LOCK (current_allocator);
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if (current_allocator)
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{
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GAllocator *allocator;
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allocator = current_allocator;
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current_allocator = allocator->last;
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allocator->last = NULL;
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allocator->is_unused = TRUE;
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}
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G_UNLOCK (current_allocator);
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}
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GtkTreeDataList *
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_gtk_tree_data_list_alloc (void)
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{
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GtkTreeDataList *list;
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G_LOCK (current_allocator);
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if (!current_allocator)
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{
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GAllocator *allocator = g_allocator_new ("GTK+ default GtkTreeDataList allocator",
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128);
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gtk_tree_data_list_validate_allocator (allocator);
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allocator->last = NULL;
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current_allocator = allocator;
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}
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if (!current_allocator->free_nodes)
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list = g_chunk_new (GtkTreeDataList, current_allocator->mem_chunk);
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else
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{
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list = current_allocator->free_nodes;
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current_allocator->free_nodes = list->next;
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}
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G_UNLOCK (current_allocator);
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return list;
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}
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void
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_gtk_tree_data_list_free (GtkTreeDataList *list,
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GType *column_headers)
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{
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GtkTreeDataList *tmp;
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gint i = 0;
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for (tmp = list; tmp; tmp = tmp->next)
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{
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switch (column_headers [i])
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{
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case G_TYPE_STRING:
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g_free ((gchar *) tmp->data.v_pointer);
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break;
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case G_TYPE_OBJECT:
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g_object_unref (G_OBJECT (tmp->data.v_pointer));
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break;
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default:
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break;
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}
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i++;
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}
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G_LOCK (current_allocator);
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list->next = current_allocator->free_nodes;
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current_allocator->free_nodes = list;
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G_UNLOCK (current_allocator);
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}
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void
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_gtk_tree_data_list_node_to_value (GtkTreeDataList *list,
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GType type,
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GValue *value)
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{
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g_value_init (value, type);
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switch (type)
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{
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case G_TYPE_BOOLEAN:
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g_value_set_boolean (value, (gboolean) list->data.v_int);
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break;
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case G_TYPE_CHAR:
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g_value_set_char (value, list->data.v_char);
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break;
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case G_TYPE_UCHAR:
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g_value_set_uchar (value, list->data.v_uchar);
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break;
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case G_TYPE_INT:
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g_value_set_int (value, list->data.v_int);
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break;
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case G_TYPE_UINT:
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g_value_set_uint (value, list->data.v_uint);
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break;
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case G_TYPE_POINTER:
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g_value_set_pointer (value, (gpointer) list->data.v_pointer);
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break;
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case G_TYPE_FLOAT:
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g_value_set_float (value, list->data.v_float);
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break;
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case G_TYPE_STRING:
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g_value_set_string (value, (gchar *) list->data.v_pointer);
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break;
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default:
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if (g_type_is_a (type, G_TYPE_OBJECT))
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g_value_set_object (value, (GObject *) list->data.v_pointer);
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else if (g_type_is_a (type, G_TYPE_BOXED))
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g_value_set_boxed (value, (GObject *) list->data.v_pointer);
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else
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g_warning ("Unsupported type (%s) retrieved.", g_type_name (value->g_type));
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break;
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}
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}
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void
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_gtk_tree_data_list_value_to_node (GtkTreeDataList *list,
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GValue *value)
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{
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switch (value->g_type)
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{
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case G_TYPE_BOOLEAN:
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list->data.v_int = g_value_get_boolean (value);
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break;
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case G_TYPE_CHAR:
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list->data.v_char = g_value_get_char (value);
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break;
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case G_TYPE_UCHAR:
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list->data.v_uchar = g_value_get_uchar (value);
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break;
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case G_TYPE_INT:
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list->data.v_int = g_value_get_int (value);
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break;
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case G_TYPE_UINT:
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list->data.v_uint = g_value_get_uint (value);
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break;
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case G_TYPE_POINTER:
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list->data.v_pointer = g_value_get_pointer (value);
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break;
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case G_TYPE_FLOAT:
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list->data.v_float = g_value_get_float (value);
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break;
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case G_TYPE_STRING:
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list->data.v_pointer = g_value_dup_string (value);
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break;
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default:
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if (g_type_is_a (G_VALUE_TYPE (value), G_TYPE_OBJECT))
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list->data.v_pointer = g_value_dup_object (value);
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else if (g_type_is_a (G_VALUE_TYPE (value), G_TYPE_BOXED))
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list->data.v_pointer = g_value_dup_boxed (value);
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else
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g_warning ("Unsupported type (%s) stored.", g_type_name (value->g_type));
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break;
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}
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}
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GtkTreeDataList*
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_gtk_tree_data_list_node_copy (GtkTreeDataList *list,
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GType type)
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{
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GtkTreeDataList *new_list;
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g_return_val_if_fail (list != NULL, NULL);
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new_list = _gtk_tree_data_list_alloc ();
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new_list->next = NULL;
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switch (type)
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{
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case G_TYPE_UINT:
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case G_TYPE_INT:
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case G_TYPE_UCHAR:
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case G_TYPE_CHAR:
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case G_TYPE_BOOLEAN:
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case G_TYPE_POINTER:
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case G_TYPE_FLOAT:
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new_list->data = list->data;
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break;
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case G_TYPE_STRING:
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new_list->data.v_pointer = g_strdup (list->data.v_pointer);
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break;
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default:
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if (g_type_is_a (type, G_TYPE_OBJECT))
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{
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new_list->data.v_pointer = list->data.v_pointer;
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if (new_list->data.v_pointer)
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g_object_ref (G_OBJECT (new_list->data.v_pointer));
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}
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else if (g_type_is_a (type, G_TYPE_BOXED))
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{
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if (list->data.v_pointer)
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new_list->data.v_pointer = g_boxed_copy (type, list->data.v_pointer);
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else
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new_list->data.v_pointer = NULL;
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}
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else
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g_warning ("Unsupported node type (%s) copied.", g_type_name (type));
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break;
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}
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return new_list;
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}
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