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/********************************************************************************
* *
* V i s u a l C l a s s *
* *
*********************************************************************************
* Copyright (C) 1999,2002 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: FXVisual.h,v 1.23 2002/01/18 22:42:55 jeroen Exp $ *
********************************************************************************/
#ifndef FXVISUAL_H
#define FXVISUAL_H
#ifndef FXID_H
#include "FXId.h"
#endif
/// Construction options for FXVisual class
enum FXVisualOptions {
VISUAL_DEFAULT = 0, /// Default visual
VISUAL_MONOCHROME = 1, /// Must be monochrome visual
VISUAL_BEST = 2, /// Best (deepest) visual
VISUAL_INDEXCOLOR = 4, /// Palette visual
VISUAL_GRAYSCALE = 8, /// Gray scale visual
VISUAL_TRUECOLOR = 16, /// Must be true color visual
VISUAL_OWNCOLORMAP = 32, /// Allocate private colormap
VISUAL_DOUBLEBUFFER = 64, /// Double-buffered [FXGLVisual]
VISUAL_STEREO = 128, /// Stereo [FXGLVisual]
VISUAL_NOACCEL = 256 /// No hardware acceleration [for broken h/w]
};
/// Visual type
enum FXVisualType {
VISUALTYPE_UNKNOWN, /// Undetermined visual type
VISUALTYPE_MONO, /// Visual for drawing into 1-bpp surfaces
VISUALTYPE_TRUE, /// True color
VISUALTYPE_INDEX, /// Index [palette] color
VISUALTYPE_GRAY /// Gray scale
};
class FXApp;
class FXWindow;
class FXGLContext;
class FXGLCanvas;
class FXImage;
class FXIcon;
class FXBitmap;
class FXDCWindow;
/// Visual describes pixel format of a drawable
class FXAPI FXVisual : public FXId {
FXDECLARE(FXVisual)
friend class FXApp;
friend class FXWindow;
friend class FXGLContext;
friend class FXGLCanvas;
friend class FXImage;
friend class FXIcon;
friend class FXBitmap;
friend class FXDCWindow;
protected:
FXuint flags; // Visual flags
FXuint hint; // Depth Hint
FXuint depth; // Visual depth, bits/pixel
FXuint numred; // Number of reds
FXuint numgreen; // Number of greens
FXuint numblue; // Number of blues
FXuint numcolors; // Total number of colors
FXuint maxcolors; // Maximum number of colors
FXVisualType type; // Visual type
#ifndef WIN32
protected:
void *visual; // Application visual [Visual]
void *info; // XVisualInfo, if any
FXID colormap; // Color map, if any
void* gc; // Drawing GC
void* scrollgc; // Scrolling GC
FXPixel rpix[16][256]; // Mapping from red -> pixel
FXPixel gpix[16][256]; // Mapping from green -> pixel
FXPixel bpix[16][256]; // Mapping from blue -> pixel
FXPixel lut[256]; // Color lookup table
FXbool freemap; // We allocated the map
protected:
void* makegc(FXbool gex);
void setuptruecolor();
void setupdirectcolor();
void setuppseudocolor();
void setupstaticcolor();
void setupgrayscale();
void setupstaticgray();
void setuppixmapmono();
void setupcolormap();
#else
protected:
FXID hPalette; // Palette, if any
void *info; // PIXELFORMATDESCRIPTOR, if any
int pixelformat; // PIXELFORMAT number
protected:
FXID createAllPurposePalette();
#endif
protected:
FXVisual();
public:
/// Construct default visual
FXVisual(FXApp* a,FXuint flgs,FXuint d=32);
/// Create visual
virtual void create();
/// Detach visual
virtual void detach();
/// Destroy visual
virtual void destroy();
/// Get flags (see FXVisualOptions)
FXuint getFlags() const { return flags; }
/// Get depth
FXuint getDepth() const { return depth; }
/// Get number of colors
FXuint getNumColors() const { return numcolors; }
/// Get number of reds
FXuint getNumRed() const { return numred; }
/// Get number of greens
FXuint getNumGreen() const { return numred; }
/// Get number of blues
FXuint getNumBlue() const { return numred; }
/// Get device pixel value for color
FXPixel getPixel(FXColor clr);
/// Get color value for device pixel value
FXColor getColor(FXPixel pix);
/// Set maximum number of colors to allocate
void setMaxColors(FXuint maxcols);
/// Get maximum number of colors
FXuint getMaxColors() const { return maxcolors; }
/// Get visual type
FXVisualType getType() const { return type; }
/// Save visual information to a stream
virtual void save(FXStream& store) const;
/// Load visual information from a stream
virtual void load(FXStream& store);
/// Destructor
virtual ~FXVisual();
};
#endif
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