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162 lines
3.8 KiB
C
162 lines
3.8 KiB
C
/* -*- Mode: C; indent-tabs-mode: t; c-basic-offset: 8; tab-width: 8 -*- */
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/* gnome-icon-layout.c
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Copyright (C) 1999 Free Software Foundation
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The Gnome 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 License as
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published by the Free Software Foundation; either version 2 of the
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License, or (at your option) any later version.
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The Gnome 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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You should have received a copy of the GNU Library General Public
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License along with the Gnome Library; see the file COPYING.LIB. If not,
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write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA.
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Author: Ettore Perazzoli <ettore@gnu.org>
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*/
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#include <glib.h>
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#include "gnome-icon-container.h"
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#include "gnome-icon-container-private.h"
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#include "gnome-icon-container-layout.h"
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struct _IconLayoutInfo {
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gchar *text;
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gint x, y;
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};
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typedef struct _IconLayoutInfo IconLayoutInfo;
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struct _GnomeIconContainerLayout {
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GHashTable *name_to_layout;
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};
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GnomeIconContainerLayout *
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gnome_icon_container_layout_new (void)
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{
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GnomeIconContainerLayout *new;
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new = g_new (GnomeIconContainerLayout, 1);
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new->name_to_layout = g_hash_table_new (g_str_hash, g_str_equal);
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return new;
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}
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static void
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hash_foreach_destroy (gpointer key,
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gpointer value,
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gpointer data)
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{
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IconLayoutInfo *info;
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info = (IconLayoutInfo *) value;
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g_free (info->text);
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g_free (info);
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}
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void
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gnome_icon_container_layout_free (GnomeIconContainerLayout *layout)
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{
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g_return_if_fail (layout != NULL);
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g_hash_table_foreach (layout->name_to_layout,
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hash_foreach_destroy, NULL);
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g_hash_table_destroy (layout->name_to_layout);
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g_free (layout);
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}
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void
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gnome_icon_container_layout_add (GnomeIconContainerLayout *layout,
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const gchar *icon_text,
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gint x,
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gint y)
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{
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IconLayoutInfo *info;
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g_return_if_fail (layout != NULL);
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g_return_if_fail (icon_text != NULL);
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info = g_new (IconLayoutInfo, 1);
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info->text = g_strdup (icon_text);
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info->x = x;
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info->y = y;
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g_hash_table_remove (layout->name_to_layout, info->text);
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g_hash_table_insert (layout->name_to_layout, info->text, info);
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}
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gboolean
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gnome_icon_container_layout_get_position (const GnomeIconContainerLayout *layout,
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const gchar *icon_text,
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gint *x_return,
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gint *y_return)
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{
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IconLayoutInfo *info;
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g_return_val_if_fail (layout != NULL, FALSE);
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g_return_val_if_fail (icon_text != NULL, FALSE);
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info = g_hash_table_lookup (layout->name_to_layout, icon_text);
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if (info == NULL)
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return FALSE;
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*x_return = info->x;
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*y_return = info->y;
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return TRUE;
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}
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struct _ForeachData {
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GnomeIconContainerLayout *layout;
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GnomeIconContainerLayoutForeachFunc callback;
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gpointer callback_data;
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};
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typedef struct _ForeachData ForeachData;
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static void
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foreach_helper (gpointer key,
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gpointer value,
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gpointer user_data)
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{
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IconLayoutInfo *info;
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ForeachData *data;
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info = (IconLayoutInfo *) value;
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data = (ForeachData *) user_data;
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(* data->callback) (data->layout, info->text, info->x, info->y,
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data->callback_data);
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}
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void
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gnome_icon_container_layout_foreach (GnomeIconContainerLayout *layout,
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GnomeIconContainerLayoutForeachFunc callback,
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gpointer callback_data)
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{
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ForeachData *data;
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g_return_if_fail (layout != NULL);
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g_return_if_fail (callback != NULL);
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data = g_new (ForeachData, 1);
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data->layout = layout;
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data->callback = callback;
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data->callback_data = callback_data;
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g_hash_table_foreach (layout->name_to_layout, foreach_helper, data);
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g_free (data);
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}
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