pixels.h

windows mobile phone source code

/*
 * pixels.h
 *
 * Pixel images.
 *
 * Portable Windows Library
 *
 * Copyright (c) 1993-1998 Equivalence Pty. Ltd.
 *
 * The contents of this file are subject to the Mozilla Public License
 * Version 1.0 (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.mozilla.org/MPL/
 *
 * Software distributed under the License is distributed on an "AS IS"
 * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
 * the License for the specific language governing rights and limitations
 * under the License.
 *
 * The Original Code is Portable Windows Library.
 *
 * The Initial Developer of the Original Code is Equivalence Pty. Ltd.
 *
 * Portions are Copyright (C) 1993 Free Software Foundation, Inc.
 * All Rights Reserved.
 *
 * Contributor(s): ______________________________________.
 *
 * $Log: pixels.h,v $
 * Revision 1.10  2001/05/22 12:49:33  robertj
 * Did some seriously wierd rewrite of platform headers to eliminate the
 *   stupid GNU compiler warning about braces not matching.
 *
 * Revision 1.9  1998/11/30 03:00:15  robertj
 * New directory structure
 *
 * Revision 1.8  1998/09/24 03:41:08  robertj
 * Added open software license.
 *
 * Revision 1.7  1996/08/08 10:10:17  robertj
 * Directory structure changes for common files.
 *
 * Revision 1.6  1995/03/12 05:00:15  robertj
 * Re-organisation of DOS/WIN16 and WIN32 platforms to maximise common code.
 * Used built-in equate for WIN32 API (_WIN32).
 *
 * Revision 1.5  1995/02/05  00:54:22  robertj
 * Removed redundent class declaration.
 *
 * Revision 1.4  1994/12/05  11:34:29  robertj
 * Major rewrite of images, pictures and pixmaps.
 * Renamed PPict, PPixels and PImage to make sure all uses are found.
 *
 * Revision 1.3  1994/10/23  05:50:06  robertj
 * Split pixels into subclasses for each pixel size.
 * Moved large slabs to common.
 *
 * Revision 1.2  1994/04/20  12:17:44  robertj
 * assert changes
 *
 * Revision 1.1  1994/04/12  08:21:52  robertj
 * Initial revision
 *
 */

#ifndef _PPIXELS

class PCanvas;

#if defined(_WIN32)
typedef unsigned char * PPixelDataPtr;
#else
typedef unsigned char __huge * PPixelDataPtr;
#endif


///////////////////////////////////////////////////////////////////////////////
// PPixels

#define _PPIXELS_PLATFORM_INCLUDE
#include "../../pixels.h"

#endif
#ifdef _PPIXELS_PLATFORM_INCLUDE
#undef _PPIXELS_PLATFORM_INCLUDE

  public:
    static PPixelImage CreateBitmap(HBITMAP hBm);
      // Create a pixels object from the MS-Windows Device Dependent Bitmap

    virtual HDC CreateImageDC();
    virtual void CloseImageDC(HDC hDC);
      // Support for PMemoryCanvas

    HBITMAP GetHBITMAP(HDC hDC) const;
      // Get the bitmap as an MS-Windows Device Dependent Bitmap

    class DIBInfo {
      public:
        DIBInfo(const PPixelBase & pix, HPALETTE hPal);
        // Create a BITMAPINFO data pointer.
        ~DIBInfo() { free(info); }
        int Width() const { return (int)info->bmiHeader.biWidth; }
        int Height() const { return (int)info->bmiHeader.biHeight; }
        UINT Usage() const { return colourUse; }
        operator BITMAPINFO *() const { return info; }
        operator BITMAPINFOHEADER *() const { return &info->bmiHeader; }
      private:
        BITMAPINFO * info;
        UINT         colourUse;
    };
    friend class DIBInfo;
      

  protected:
    // Member variables
    BITMAPINFOHEADER info;
      // MS-Windows Device Independent Bitmap header info

    HBITMAP hBitmap;
      // MS-Windows Device Dependent Bitmap for interaction with PMemoryCanvas.

#endif


// End Of File ///////////////////////////////////////////////////////////////