Matthew Wilber
7598450e4f
git-svn-id: file:///srv/svn/repos/haiku/trunk/current@5693 a95241bf-73f2-0310-859d-f6bbb57e9c96
80 lines
2.5 KiB
C++
80 lines
2.5 KiB
C++
/*****************************************************************************/
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// ShowImageUndo
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// Written by Michael Wilber
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//
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// ShowImageUndo.h
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//
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//
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// Copyright (c) 2003 OpenBeOS Project
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//
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// Permission is hereby granted, free of charge, to any person obtaining a
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// copy of this software and associated documentation files (the "Software"),
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// to deal in the Software without restriction, including without limitation
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// the rights to use, copy, modify, merge, publish, distribute, sublicense,
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// and/or sell copies of the Software, and to permit persons to whom the
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// Software is furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included
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// in all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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// DEALINGS IN THE SOFTWARE.
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/*****************************************************************************/
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#ifndef _ShowImageUndo_h
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#define _ShowImageUndo_h
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#include <Rect.h>
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#include <Bitmap.h>
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#include <Window.h>
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#include <Message.h>
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#include <Messenger.h>
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#include "ShowImageConstants.h"
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// for Undo
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#define UNDO_UNDO 1
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#define UNDO_REDO 2
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class ShowImageUndo {
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public:
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ShowImageUndo();
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~ShowImageUndo();
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void SetWindow(BWindow *win) { fWindow = win; }
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void Clear();
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// NOTE: THESE TWO FUNCTIONS DO NOT MAKE COPIES OF THE
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// BITMAPS PASSED TO THEM
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void SetTo(BRect rect, BBitmap *restore, BBitmap *selection);
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void Undo(BRect rect, BBitmap *restore, BBitmap *selection);
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int32 GetType() { return fUndoType; }
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BRect GetRect() { return fRect; }
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BBitmap *GetRestoreBitmap() { return fRestore; }
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BBitmap *GetSelectionBitmap() { return fSelection; }
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private:
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void InternalClear();
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void SendUndoStateMessage(bool bCanUndo);
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BWindow *fWindow;
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// Window to which notification messages are sent
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int32 fUndoType;
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// Nothing, Undo or Redo
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BRect fRect;
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// Area of background bitmap where change took place
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BBitmap *fRestore;
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// Changed portion of background bitmap, before change took place
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BBitmap *fSelection;
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// Selection present before change took place
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};
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#endif /* _ShowImageUndo_h */
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