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// Image.hh adapted for use in bbtools 03-1999 by John Kennis
//
//
// Original notice:
//
// Image.hh for Blackbox - an X11 Window manager
// Copyright (c) 1997 - 1999 by Brad Hughes, bhughes@tcac.net
//
// 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., 675 Mass Ave, Cambridge, MA 02139, USA.
//
// (See the included file COPYING / GPL-2.0)
//
#ifndef __Image_hh
#define __Image_hh
#include <X11/Xlib.h>
#include <X11/Xutil.h>
// forward declarations
class Basewindow;
class BImage;
class BImageControl;
typedef struct BColor {
int allocated;
unsigned char red, green, blue;
unsigned long pixel;
};
typedef struct BTexture {
BColor color, colorTo, hiColor, loColor;
unsigned long texture;
};
#include "LinkedList.hh"
// bevel options
#define BImage_Flat (1<<1)
#define BImage_Sunken (1<<2)
#define BImage_Raised (1<<3)
// textures
#define BImage_Solid (1<<4)
#define BImage_Gradient (1<<5)
// gradients
#define BImage_Horizontal (1<<6)
#define BImage_Vertical (1<<7)
#define BImage_Diagonal (1<<8)
// bevel types
#define BImage_Bevel1 (1<<9)
#define BImage_Bevel2 (1<<10)
// inverted image
#define BImage_Invert (1<<11)
class BImage {
private:
BImageControl *control;
XColor *colors;
BColor from, to;
int roff, goff, boff, ncolors, cpc, cpccpc;
unsigned char *red, *green, *blue;
unsigned int width, height;
unsigned short *tr, *tg, *tb;
protected:
Pixmap renderPixmap(void);
XImage *renderXImage(void);
void invert(void);
void bevel1(void);
void bevel2(void);
void dgradient(void);
void hgradient(void);
void vgradient(void);
public:
BImage(BImageControl *, unsigned int, unsigned int);
~BImage(void);
Pixmap render(const BTexture * /* texture */);
Pixmap render_solid(const BTexture * /* texture */);
Pixmap render_gradient(const BTexture * /* texture */);
};
class BImageControl {
private:
Basewindow *blackbox;
Colormap root_colormap;
Display *display;
Window window;
XColor *colors;
int colors_per_channel, ncolors, screen_number, screen_depth,
bits_per_pixel, red_offset, green_offset, blue_offset;
unsigned short rmask_table[256], gmask_table[256], bmask_table[256],
rerr_table[256], gerr_table[256], berr_table[256];
unsigned int dither_buf_width;
short *red_err, *green_err, *blue_err, *next_red_err, *next_green_err,
*next_blue_err;
typedef struct Cache {
Pixmap pixmap;
unsigned int count, width, height;
unsigned long pixel1, pixel2, texture;
} Cache;
LinkedList<Cache> *cache;
protected:
Pixmap searchCache(unsigned int, unsigned int, unsigned long, const BColor &,
const BColor &);
public:
BImageControl(Basewindow *);
~BImageControl(void);
Bool doDither(void);
int getScreenNumber(void) { return screen_number; }
Colormap getColormap(void) { return root_colormap; }
Display *getDisplay(void) { return display; }
Pixmap renderImage(unsigned int, unsigned int, const BTexture *);
Visual *getVisual(void);
Window getDrawable(void) { return window; }
int getBitsPerPixel(void) { return bits_per_pixel; }
int getDepth(void) { return screen_depth; }
int getColorsPerChannel(void) { return colors_per_channel; }
unsigned long getColor(const char *);
unsigned long getColor(const char *, unsigned char *, unsigned char *,
unsigned char *);
void installRootColormap(void);
void removeImage(Pixmap);
void getDitherBuffers(unsigned int,
short **, short **, short **,
short **, short **, short **,
unsigned short **, unsigned short **,
unsigned short **);
void getMaskTables(unsigned short **, unsigned short **, unsigned short **,
int *, int *, int *);
void getColorTable(XColor **, int *);
};
#endif // __Image_hh
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