mirror of https://github.com/GNOME/gimp.git
366 lines
8.1 KiB
C
366 lines
8.1 KiB
C
/* The GIMP -- an image manipulation program
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* Copyright (C) 1999 Manish Singh
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program 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
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#include "config.h"
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#include <string.h>
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#include <gmodule.h>
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#include "libgimpbase/gimpbase.h"
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#include "apptypes.h"
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#include "gdisplay_color.h"
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#include "gdisplay.h"
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#include "gimpimageP.h"
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#include "gimpui.h"
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#include <gtk/gtk.h>
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typedef struct _ColorDisplayInfo ColorDisplayInfo;
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struct _ColorDisplayInfo
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{
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gchar *name;
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GimpColorDisplayMethods methods;
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GSList *refs;
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};
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static GHashTable *color_display_table = NULL;
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static void color_display_foreach_real (gpointer key,
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gpointer value,
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gpointer user_data);
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static void gdisplay_color_detach_real (GDisplay *gdisp,
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ColorDisplayNode *node,
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gboolean unref);
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static gint node_name_compare (ColorDisplayNode *node,
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const gchar *name);
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void
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color_display_init (void)
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{
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}
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G_MODULE_EXPORT gboolean
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gimp_color_display_register (const gchar *name,
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GimpColorDisplayMethods *methods)
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{
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ColorDisplayInfo *info;
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info = g_new (ColorDisplayInfo, 1);
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info->name = g_strdup (name);
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info->methods = *methods;
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info->refs = NULL;
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if (!color_display_table)
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color_display_table = g_hash_table_new (g_str_hash, g_str_equal);
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if (g_hash_table_lookup (color_display_table, name))
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return FALSE;
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if (!methods->convert)
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return FALSE;
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g_hash_table_insert (color_display_table, info->name, info);
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return TRUE;
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}
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G_MODULE_EXPORT gboolean
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gimp_color_display_unregister (const gchar *name)
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{
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ColorDisplayInfo *info;
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GDisplay *gdisp;
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GList *node;
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if ((info = g_hash_table_lookup (color_display_table, name)))
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{
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GSList *refs = info->refs;
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while (refs)
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{
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gdisp = (GDisplay *) refs->data;
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node = g_list_find_custom (gdisp->cd_list, (gpointer) name,
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(GCompareFunc) node_name_compare);
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gdisp->cd_list = g_list_remove_link (gdisp->cd_list, node);
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gdisplay_color_detach_real (gdisp, node->data, FALSE);
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g_list_free_1 (node);
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refs = refs->next;
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}
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g_slist_free (info->refs);
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g_hash_table_remove (color_display_table, name);
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g_free (info->name);
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g_free (info);
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}
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return TRUE;
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}
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typedef struct _DisplayForeachData DisplayForeachData;
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struct _DisplayForeachData
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{
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GimpCDFunc func;
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gpointer user_data;
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};
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void
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color_display_foreach (GimpCDFunc func,
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gpointer user_data)
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{
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DisplayForeachData data;
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data.func = func;
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data.user_data = user_data;
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g_hash_table_foreach (color_display_table, color_display_foreach_real, &data);
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}
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static void
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color_display_foreach_real (gpointer key,
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gpointer value,
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gpointer user_data)
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{
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DisplayForeachData *data = (DisplayForeachData *) user_data;
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data->func (key, data->user_data);
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}
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ColorDisplayNode *
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gdisplay_color_attach (GDisplay *gdisp,
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const gchar *name)
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{
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ColorDisplayInfo *info;
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ColorDisplayNode *node;
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g_return_val_if_fail (gdisp != NULL, NULL);
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if ((info = g_hash_table_lookup (color_display_table, name)))
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{
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node = g_new (ColorDisplayNode, 1);
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node->cd_name = g_strdup (name);
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node->cd_ID = NULL;
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if (!info->refs && info->methods.init)
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info->methods.init ();
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info->refs = g_slist_append (info->refs, gdisp);
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if (info->methods.new)
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node->cd_ID = info->methods.new (gdisp->gimage->base_type);
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node->cd_convert = info->methods.convert;
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gdisp->cd_list = g_list_append (gdisp->cd_list, node);
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return node;
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}
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else
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g_warning ("Tried to attach a nonexistant color display");
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return NULL;
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}
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ColorDisplayNode *
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gdisplay_color_attach_clone (GDisplay *gdisp,
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ColorDisplayNode *node)
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{
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ColorDisplayInfo *info;
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ColorDisplayNode *clone;
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g_return_val_if_fail (gdisp != NULL, NULL);
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g_return_val_if_fail (node != NULL, NULL);
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if ((info = g_hash_table_lookup (color_display_table, node->cd_name)))
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{
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clone = g_new (ColorDisplayNode, 1);
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clone->cd_name = g_strdup (node->cd_name);
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clone->cd_ID = NULL;
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info->refs = g_slist_append (info->refs, gdisp);
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if (info->methods.clone)
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node->cd_ID = info->methods.clone (node->cd_ID);
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node->cd_convert = info->methods.convert;
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gdisp->cd_list = g_list_append (gdisp->cd_list, node);
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return node;
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}
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else
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g_warning ("Tried to clone a nonexistant color display");
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return NULL;
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}
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void
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gdisplay_color_detach (GDisplay *gdisp,
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ColorDisplayNode *node)
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{
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g_return_if_fail (gdisp != NULL);
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gdisp->cd_list = g_list_remove (gdisp->cd_list, node);
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}
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void
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gdisplay_color_detach_destroy (GDisplay *gdisp,
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ColorDisplayNode *node)
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{
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g_return_if_fail (gdisp != NULL);
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gdisplay_color_detach_real (gdisp, node, TRUE);
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gdisp->cd_list = g_list_remove (gdisp->cd_list, node);
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}
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void
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gdisplay_color_detach_all (GDisplay *gdisp)
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{
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GList *list;
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g_return_if_fail (gdisp != NULL);
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list = gdisp->cd_list;
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while (list)
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{
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gdisplay_color_detach_real (gdisp, list->data, TRUE);
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list = list->next;
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}
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g_list_free (gdisp->cd_list);
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gdisp->cd_list = NULL;
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}
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static void
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gdisplay_color_detach_real (GDisplay *gdisp,
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ColorDisplayNode *node,
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gboolean unref)
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{
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ColorDisplayInfo *info;
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g_return_if_fail (gdisp != NULL);
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g_return_if_fail (node != NULL);
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if ((info = g_hash_table_lookup (color_display_table, node->cd_name)))
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{
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if (info->methods.destroy)
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info->methods.destroy (node->cd_ID);
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if (unref)
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info->refs = g_slist_remove (info->refs, gdisp);
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if (!info->refs && info->methods.finalize)
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info->methods.finalize ();
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}
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g_free (node->cd_name);
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g_free (node);
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}
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void
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gdisplay_color_reorder_up (GDisplay *gdisp,
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ColorDisplayNode *node)
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{
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GList *node_list;
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node_list = g_list_find (gdisp->cd_list, node);
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if (node_list->prev)
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{
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node_list->data = node_list->prev->data;
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node_list->prev->data = node;
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}
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}
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void
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gdisplay_color_reorder_down (GDisplay *gdisp,
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ColorDisplayNode *node)
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{
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GList *node_list;
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g_return_if_fail (gdisp != NULL);
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node_list = g_list_find (gdisp->cd_list, node);
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if (node_list->next)
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{
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node_list->data = node_list->next->data;
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node_list->next->data = node;
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}
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}
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static gint
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node_name_compare (ColorDisplayNode *node,
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const char *name)
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{
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return strcmp (node->cd_name, name);
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}
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void
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gdisplay_color_configure (ColorDisplayNode *node,
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GFunc ok_func,
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gpointer ok_data,
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GFunc cancel_func,
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gpointer cancel_data)
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{
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ColorDisplayInfo *info;
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g_return_if_fail (node != NULL);
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if ((info = g_hash_table_lookup (color_display_table, node->cd_name)))
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{
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if (info->methods.configure)
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info->methods.configure (node->cd_ID,
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ok_func, ok_data,
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cancel_func, cancel_data);
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}
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else
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g_warning ("Tried to configure a nonexistant color display");
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return;
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}
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void
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gdisplay_color_configure_cancel (ColorDisplayNode *node)
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{
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ColorDisplayInfo *info;
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g_return_if_fail (node != NULL);
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if ((info = g_hash_table_lookup (color_display_table, node->cd_name)))
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{
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if (info->methods.cancel)
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info->methods.cancel (node->cd_ID);
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}
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else
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g_warning ("Tried to configure cancel a nonexistant color display");
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return;
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}
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