- Your Widget Set For OpenGL

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ugl_image.hpp

/***************************************************************************
    LibUFO - UI For OpenGL
    copyright         : (C) 2001-2005 by Johannes Schmidt
    email             : schmidtjf at users.sourceforge.net
                             -------------------

    file              : include/ufo/gl/ugl_image.hpp
    begin             : Sat Oct 18 2003
    $Id: ugl_image.hpp,v 1.5 2005/05/21 15:18:46 schmidtjf Exp $
 ***************************************************************************/

/***************************************************************************
 *  This library is free software; you can redistribute it and/or          *
 * modify it under the terms of the GNU Lesser General Public              *
 * License as published by the Free Software Foundation; either            *
 * version 2.1 of the License, or (at your option) any later version.      *
 *                                                                         *
 * This library 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       *
 * Lesser General Public License for more details.                         *
 *                                                                         *
 * You should have received a copy of the GNU Lesser General Public        *
 * License along with this library; if not, write to the Free Software     *
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA *
 ***************************************************************************/

#ifndef UGL_IMAGE_HPP
#define UGL_IMAGE_HPP

#include "../image/uimage.hpp"

// we need some opengl specific types
#include "../ufo_gl.hpp"
#include "../image/uimageio.hpp"

#include "../util/udimension.hpp"
#include "../util/urectangle.hpp"

namespace ufo {

class UFO_EXPORT UGL_Image : public UImage {
    UFO_DECLARE_DYNAMIC_CLASS(UGL_Image)
public: // constructors
    UGL_Image(const std::string & fileName, bool lazy = true, bool autoRefresh = true,
        GLenum imageFormat = 0, GLenum internalFormat = 0);

    UGL_Image(UImageIO * imageIO, bool lazy = true, bool autoRefresh = true,
        GLenum imageFormat = 0, GLenum internalFormat = 0);

    virtual ~UGL_Image();

public: // Implements UImage
    virtual UDimension getImageSize() const;
    virtual int getImageComponents() const;
    virtual unsigned long handle() const;

public: // Public methods
    UDimension getSize() const;

    void paint(UGraphics * g);

    void paint(UGraphics * g, const UPoint & location);
    void paint(UGraphics * g, const URectangle & rect);

    void paintSubImage(UGraphics * g, const URectangle & rect,
        const UPoint & dest);
    void paintSubImage(UGraphics * g, const URectangle & rect,
        const URectangle & dest);

    void dispose();
    void disposeGL();

    void refresh();

    void setQuality(int quality);
    int getQuality() const;

protected:  // Protected methods
    virtual bool createGLTexture(GLubyte * dataA, int componentsA,
                     GLenum imageFormatA, GLenum internalFormatA);

    void ensureImage();
    int round2(int n);

private:  // Private attributes
    GLuint m_index;
    GLenum m_imageFormat;
    GLenum m_internalFormat;
    UDimension m_size;
    int m_imageComponents : 4;
    int m_quality : 4;
    int m_isValid : 1;
    int m_isLazy : 1;
    int m_autoRefresh : 1;

    std::string m_fileName;
    UImageIO * m_imageData;
};

} // namespace ufo

#endif // UGL_IMAGE_HPP

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