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/********************************************************************************
* *
* I m a g e O b j e c t *
* *
*********************************************************************************
* Copyright (C) 1997,2002 by Jeroen van der Zijp. All Rights Reserved. *
*********************************************************************************
* 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. *
*********************************************************************************
* $Id: FXImage.h,v 1.32 2002/01/18 22:42:53 jeroen Exp $ *
********************************************************************************/
#ifndef FXIMAGE_H
#define FXIMAGE_H
#ifndef FXDRAWABLE_H
#include "FXDrawable.h"
#endif
/// Image rendering hints
enum {
IMAGE_KEEP = 0x00000001, /// Keep pixel data in client
IMAGE_OWNED = 0x00000002, /// Pixel data is owned by image
IMAGE_DITHER = 0, /// Dither image to look better
IMAGE_NEAREST = 0x00000004, /// Turn off dithering and map to nearest color
IMAGE_ALPHA = 0x00000008, /// Data has alpha channel
IMAGE_OPAQUE = 0x00000010, /// Force opaque background
IMAGE_ALPHACOLOR = 0x00000020, /// Override transparancy color
IMAGE_SHMI = 0x00000040, /// Using shared memory image
IMAGE_SHMP = 0x00000080, /// Using shared memory pixmap
IMAGE_ALPHAGUESS = 0x00000100 /// Guess transparency color from corners
};
class FXDC;
class FXDCWindow;
class FXDrawable;
class FXTopWindow;
/// Image class
class FXAPI FXImage : public FXDrawable {
FXDECLARE(FXImage)
friend class FXDC;
friend class FXDCWindow;
friend class FXDrawable;
friend class FXTopWindow;
private:
#ifdef WIN32
virtual FXID GetDC() const;
virtual int ReleaseDC(FXID) const;
#endif
protected:
FXuchar *data; // Pixel data
FXuint options; // Options
FXuint channels; // Number of channels 3 or 4
protected:
FXImage();
#ifndef WIN32
void render_true_32(void *xim,FXuchar *img);
void render_true_24(void *xim,FXuchar *img);
void render_true_16_fast(void *xim,FXuchar *img);
void render_true_16_dither(void *xim,FXuchar *img);
void render_true_8_fast(void *xim,FXuchar *img);
void render_true_8_dither(void *xim,FXuchar *img);
void render_true_N_fast(void *xim,FXuchar *img);
void render_true_N_dither(void *xim,FXuchar *img);
void render_index_4_fast(void *xim,FXuchar *img);
void render_index_4_dither(void *xim,FXuchar *img);
void render_index_8_fast(void *xim,FXuchar *img);
void render_index_8_dither(void *xim,FXuchar *img);
void render_index_N_fast(void *xim,FXuchar *img);
void render_index_N_dither(void *xim,FXuchar *img);
void render_gray_8_fast(void *xim,FXuchar *img);
void render_gray_8_dither(void *xim,FXuchar *img);
void render_gray_N_fast(void *xim,FXuchar *img);
void render_gray_N_dither(void *xim,FXuchar *img);
void render_mono_1_fast(void *xim,FXuchar *img);
void render_mono_1_dither(void *xim,FXuchar *img);
#endif
private:
FXImage(const FXImage&);
FXImage &operator=(const FXImage&);
public:
/// Create an image
FXImage(FXApp* a,const void *pix=NULL,FXuint opts=0,FXint w=1,FXint h=1);
/// To get to the pixel data
FXuchar* getData() const { return data; }
/// To get to the option flags
FXuint getOptions() const { return options; }
/// Change options
void setOptions(FXuint opts);
/// Return number of channels, RGB or RGBA
FXint getChannels() const { return channels; }
/// Get pixel at x,y
FXColor getPixel(FXint x,FXint y) const;
/// Change pixel at x,y
void setPixel(FXint x,FXint y,FXColor color);
/// Create image resource
virtual void create();
/// Detach image resource
virtual void detach();
/// Destroy image resource
virtual void destroy();
/// Restore client-side pixel buffer from image
virtual void restore();
/// Render the image from client-side pixel buffer
virtual void render();
/// Resize pixmap to the specified width and height
virtual void resize(FXint w,FXint h);
/// Rescale pixels image to the specified width and height
virtual void scale(FXint w,FXint h);
/// Mirror image horizontally and/or vertically
virtual void mirror(FXbool horizontal,FXbool vertical);
/// Rotate image by degrees ccw
virtual void rotate(FXint degrees);
/// Crop image to given rectangle
virtual void crop(FXint x,FXint y,FXint w,FXint h);
/// Save object to stream
virtual void save(FXStream& store) const;
/// Load object from stream
virtual void load(FXStream& store);
/// Save pixel data only
virtual void savePixels(FXStream& store) const;
/// Load pixel data only
virtual void loadPixels(FXStream& store);
/// Destructor
virtual ~FXImage();
};
#endif
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