PreviewDifferenceTool.h

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// -*- c-basic-offset: 4 -*-
#ifndef _PREVIEWDIFFERENCETOOL_H
#define _PREVIEWDIFFERENCETOOL_H

#include "Tool.h"

class PreviewDifferenceTool : public Tool
{
public:
    explicit PreviewDifferenceTool(ToolHelper *helper);
    static bool CheckOpenGLCanDifference();
    void Activate();
    void ImagesUnderMouseChangedEvent();
    void AfterDrawImagesEvent();
    void BeforeDrawImagesEvent();
    bool BeforeDrawImageEvent(unsigned int image);
private:
    unsigned int image_number;
    bool over_image;
};

#endif