xref: /trunk/main/vcl/inc/unx/salbmp.h (revision 5d328669834268fa077da8fd0d9b44cc5ce2793b)

/**************************************************************
 *
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
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#ifndef _SV_SALBMP_H
#define _SV_SALBMP_H

#include <unx/salstd.hxx>
#ifndef _SV_SALGTYPE
#include <vcl/salgtype.hxx>
#endif
#include <unx/saldisp.hxx>
#include <salbmp.hxx>
#include <vclpluginapi.h>

struct  BitmapBuffer;
class   BitmapPalette;
class   SalGraphics;
class   ImplSalDDB;
class   ImplSalBitmapCache;

// -------------
// - SalBitmap -
// -------------

class VCLPLUG_GEN_PUBLIC X11SalBitmap : public SalBitmap
{
private:

    static BitmapBuffer*        ImplCreateDIB( const Size& rSize,
                                               sal_uInt16 nBitCount,
                                               const BitmapPalette& rPal );
    static BitmapBuffer*        ImplCreateDIB( Drawable aDrawable,
                                               int nScreen,
                                               long nDrawableDepth,
                                               long nX, long nY,
                                               long nWidth, long nHeight );

public:

    static ImplSalBitmapCache*  mpCache;
    static sal_uIntPtr              mnCacheInstCount;

    static void                 ImplCreateCache();
    static void                 ImplDestroyCache();
    void                        ImplRemovedFromCache();

    bool                        SnapShot (Display* pDisplay, XLIB_Window hWindow);
    bool                        ImplCreateFromXImage( Display* pDisplay,
                                                      XLIB_Window hWindow,
                                                      int nScreen,
                                                      XImage* pImage);
private:


    BitmapBuffer*   mpDIB;
    ImplSalDDB*     mpDDB;

public:

    SAL_DLLPRIVATE bool    ImplCreateFromDrawable( Drawable aDrawable,
                                                  int nScreen,
                                                  long nDrawableDepth,
                                                  long nX, long nY,
                                                  long nWidth, long nHeight );

    SAL_DLLPRIVATE XImage* ImplCreateXImage( SalDisplay* pSalDisp,
                                            int nScreen, long nDepth,
                                            const SalTwoRect& rTwoRect ) const;

    SAL_DLLPRIVATE ImplSalDDB* ImplGetDDB( Drawable, int nScreen, long nDrawableDepth,
                                           const SalTwoRect& ) const;
    void    ImplDraw( Drawable aDrawable, int nScreen, long nDrawableDepth,
                      const SalTwoRect& rTwoRect, const GC& rGC ) const;

public:

    X11SalBitmap();
    virtual ~X11SalBitmap();

    // overload pure virtual methods
    virtual bool            Create( const Size& rSize,
                            sal_uInt16 nBitCount,
                            const BitmapPalette& rPal );
    virtual bool            Create( const SalBitmap& rSalBmp );
    virtual bool            Create( const SalBitmap& rSalBmp,
                                    SalGraphics* pGraphics );
    virtual bool            Create( const SalBitmap& rSalBmp,
                                    sal_uInt16 nNewBitCount );

    virtual void            Destroy();

    virtual Size            GetSize() const;
    virtual sal_uInt16          GetBitCount() const;

    virtual BitmapBuffer*   AcquireBuffer( bool bReadOnly );
    virtual void            ReleaseBuffer( BitmapBuffer* pBuffer, bool bReadOnly );
    virtual bool            GetSystemData( BitmapSystemData& rData );
};

// --------------
// - ImplSalDDB -
// --------------

class ImplSalDDB
{
private:

    Pixmap          maPixmap;
    SalTwoRect      maTwoRect;
    long            mnDepth;
    int             mnScreen;

                    ImplSalDDB() {}

    static void ImplDraw( Drawable aSrcDrawable, long nSrcDrawableDepth,
                          Drawable aDstDrawable, long nDstDrawableDepth,
                          long nSrcX, long nSrcY,
                          long nDestWidth, long nDestHeight,
                          long nDestX, long nDestY, const GC& rGC );

public:

                    ImplSalDDB( XImage* pImage,
                                Drawable aDrawable, int nScreen,
                                const SalTwoRect& rTwoRect );
                    ImplSalDDB( Drawable aDrawable,
                                int nScreen,
                                long nDrawableDepth,
                                long nX, long nY, long nWidth, long nHeight );
                    ImplSalDDB( Display* pDisplay,
                                XLIB_Window hWindow,
                                int nScreen,
                                XImage* pImage);
                    ~ImplSalDDB();

    Pixmap          ImplGetPixmap() const { return maPixmap; }
    long            ImplGetWidth() const { return maTwoRect.mnDestWidth; }
    long            ImplGetHeight() const { return maTwoRect.mnDestHeight; }
    long            ImplGetDepth() const { return mnDepth; }
    sal_uIntPtr         ImplGetMemSize() const { return( ( maTwoRect.mnDestWidth * maTwoRect.mnDestHeight * mnDepth ) >> 3 ); }
    int             ImplGetScreen() const { return mnScreen; }

    bool            ImplMatches( int nScreen, long nDepth, const SalTwoRect& rTwoRect ) const;
    void            ImplDraw( Drawable aDrawable, long nDrawableDepth,
                              const SalTwoRect& rTwoRect, const GC& rGC ) const;
};

// ----------------------
// - ImplSalBitmapCache -
// ----------------------

class ImplSalBitmapCache
{
private:

    List            maBmpList;
    sal_uIntPtr         mnTotalSize;

public:

                    ImplSalBitmapCache();
                    ~ImplSalBitmapCache();

    void            ImplAdd( X11SalBitmap* pBmp, sal_uIntPtr nMemSize = 0UL, sal_uIntPtr nFlags = 0UL );
    void            ImplRemove( X11SalBitmap* pBmp );
    void            ImplClear();
};

#endif // _SV_SALBMP_HXX