aseprite/src/commands/cmd_undo.cpp
2010-02-01 21:25:40 +00:00

75 lines
2.0 KiB
C++

/* ASE - Allegro Sprite Editor
* Copyright (C) 2001-2010 David Capello
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "config.h"
#include "commands/command.h"
#include "app.h"
#include "modules/gui.h"
#include "raster/sprite.h"
#include "raster/undo.h"
#include "widgets/statebar.h"
#include "sprite_wrappers.h"
class UndoCommand : public Command
{
public:
UndoCommand();
Command* clone() { return new UndoCommand(*this); }
protected:
bool enabled(Context* context);
void execute(Context* context);
};
UndoCommand::UndoCommand()
: Command("undo",
"Undo",
CmdUIOnlyFlag)
{
}
bool UndoCommand::enabled(Context* context)
{
const CurrentSpriteReader sprite(context);
return
sprite != NULL &&
undo_can_undo(sprite->undo);
}
void UndoCommand::execute(Context* context)
{
CurrentSpriteWriter sprite(context);
statusbar_show_tip(app_get_statusbar(), 1000,
_("Undid %s"),
undo_get_next_undo_label(sprite->undo));
undo_do_undo(sprite->undo);
sprite_generate_mask_boundaries(sprite);
update_screen_for_sprite(sprite);
}
//////////////////////////////////////////////////////////////////////
// CommandFactory
Command* CommandFactory::create_undo_command()
{
return new UndoCommand;
}