win32_graphics.hpp

video linux conference

/*****************************************************************************
 * win32_graphics.hpp
 *****************************************************************************
 * Copyright (C) 2003 VideoLAN
 * $Id: win32_graphics.hpp 10861 2005-05-01 13:19:04Z asmax $
 *
 * Authors: Cyril Deguet     <[e-mail]>
 *          Olivier Teuli鑢e <[e-mail]>
 *
 * 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, USA.
 *****************************************************************************/

#ifndef WIN32_GRAPHICS_HPP
#define WIN32_GRAPHICS_HPP

#include "../src/os_graphics.hpp"
#include <windows.h>


class GenericBitmap;

/// Win32 implementation of OSGraphics
class Win32Graphics: public OSGraphics
{
    public:
        Win32Graphics( intf_thread_t *pIntf, int width, int height );
        virtual ~Win32Graphics();

        /// Clear the graphics
        virtual void clear();

        /// Render a bitmap on this graphics
        virtual void drawBitmap( const GenericBitmap &rBitmap, int xSrc = 0,
                                 int ySrc = 0, int xDest = 0, int yDest = 0,
                                 int width = -1, int height = -1,
                                 bool blend = false );

        /// Draw another graphics on this one
        virtual void drawGraphics( const OSGraphics &rGraphics, int xSrc = 0,
                                   int ySrc = 0, int xDest = 0, int yDest = 0,
                                   int width = -1, int height = -1 );

        /// Draw an empty rectangle on the grahics (color is #RRGGBB)
        virtual void drawRect( int left, int top, int width, int height,
                               uint32_t color );


        /// Draw a filled rectangle on the grahics (color is #RRGGBB)
        virtual void fillRect( int left, int top, int width, int height,
                               uint32_t color );

        /// Set the shape of a window with the mask of this graphics.
        virtual void applyMaskToWindow( OSWindow &rWindow );

        /// Copy the graphics on a window
        virtual void copyToWindow( OSWindow &rWindow, int xSrc,
                                   int ySrc, int width, int height,
                                   int xDest, int yDest );

        /// Tell whether the pixel at the given position is visible
        virtual bool hit( int x, int y ) const;

        /// Getters for the size
        virtual int getWidth() const { return m_width; }
        virtual int getHeight() const { return m_height; }

        /// Get the device context handler
        virtual HDC getDC() const { return m_hDC; }

        /// Get the mask
        virtual HRGN getMask() const { return m_mask; }

    private:
        /// Size of the image
        int m_width, m_height;

        /// Device context
        HDC m_hDC;

        /// Transparency mask
        HRGN m_mask;

        /// Add a segment in a region
        void addSegmentInRegion( HRGN &rMask, int start, int end, int line );
};


#endif