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Viewing changes to app/display/gimpdisplayshell-filter.c

  • Committer: Bazaar Package Importer
  • Author(s): Sebastien Bacher
  • Date: 2005-04-04 14:51:23 UTC
  • Revision ID: james.westby@ubuntu.com-20050404145123-9py049eeelfymur8
Tags: upstream-2.2.2
Import upstream version 2.2.2

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app/display/gimpdisplayshell-filter.c
 
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/* 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 <gtk/gtk.h>
 
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#include "libgimpwidgets/gimpwidgets.h"
 
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#include "display-types.h"
 
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#include "gimpdisplayshell.h"
 
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#include "gimpdisplayshell-filter.h"
 
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/*  local function prototypes  */
 
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static void   gimp_display_shell_filter_changed (GimpColorDisplayStack *stack,
 
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                                                 GimpDisplayShell      *shell);
 
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/*  public functions  */
 
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void
 
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gimp_display_shell_filter_set (GimpDisplayShell      *shell,
 
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                               GimpColorDisplayStack *stack)
 
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{
 
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  g_return_if_fail (GIMP_IS_DISPLAY_SHELL (shell));
 
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  g_return_if_fail (stack == NULL || GIMP_IS_COLOR_DISPLAY_STACK (stack));
 
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  if (stack == shell->filter_stack)
 
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    return;
 
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  if (shell->filter_stack)
 
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    {
 
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      g_signal_handlers_disconnect_by_func (shell->filter_stack,
 
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                                            gimp_display_shell_filter_changed,
 
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                                            shell);
 
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      g_object_unref (shell->filter_stack);
 
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    }
 
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  shell->filter_stack = stack;
 
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  if (shell->filter_stack)
 
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    {
 
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      g_object_ref (shell->filter_stack);
 
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      g_signal_connect (shell->filter_stack, "changed",
 
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                        G_CALLBACK (gimp_display_shell_filter_changed),
 
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                        shell);
 
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    }
 
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  gimp_display_shell_filter_changed (NULL, shell);
 
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}
 
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/*  private functions  */
 
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static gboolean
 
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gimp_display_shell_filter_changed_idle (gpointer data)
 
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{
 
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  GimpDisplayShell *shell = data;
 
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  gimp_display_shell_expose_full (shell);
 
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  shell->filter_idle_id = 0;
 
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  return FALSE;
 
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}
 
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static void
 
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gimp_display_shell_filter_changed (GimpColorDisplayStack *stack,
 
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                                   GimpDisplayShell      *shell)
 
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{
 
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  if (shell->filter_idle_id)
 
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    g_source_remove (shell->filter_idle_id);
 
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  shell->filter_idle_id =
 
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    g_idle_add_full (G_PRIORITY_LOW,
 
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                     gimp_display_shell_filter_changed_idle,
 
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                     shell, NULL);
 
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}