76 lines
2.1 KiB
C
76 lines
2.1 KiB
C
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/* SLiM - Simple Login Manager
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Copyright (C) 2004-06 Simone Rota <sip@varlock.com>
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Copyright (C) 2004-06 Johannes Winkelmann <jw@tks6.net>
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Copyright (C) 2012 Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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The following code has been adapted and extended from
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xplanet 1.0.1, Copyright (C) 2002-04 Hari Nair <hari@alumni.caltech.edu>
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*/
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#ifndef _IMAGE_H_
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#define _IMAGE_H_
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#include <X11/Xlib.h>
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#include <X11/Xmu/WinUtil.h>
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class Image
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{
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public:
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Image();
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Image(const int w, const int h, const unsigned char *rgb,
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const unsigned char *alpha);
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~Image();
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const unsigned char *getPNGAlpha() const {
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return(png_alpha);
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}
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const unsigned char *getRGBData() const {
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return(rgb_data);
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}
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void getPixel(double px, double py, unsigned char *pixel);
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void getPixel(double px, double py, unsigned char *pixel,
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unsigned char *alpha);
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int Width() const {
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return(width);
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}
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int Height() const {
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return(height);
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}
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bool Read(const char *filename);
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void Reduce(const int factor);
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void Resize(const int w, const int h);
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void Merge ( const Image *background, const int x, const int y );
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void Merge_non_crop(Image* background, const int x, const int y);
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void Crop(const int x, const int y, const int w, const int h);
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void Tile(const int w, const int h);
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void Center(const int w, const int h, const char *hex);
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void Plain(const int w, const int h, const char *hex);
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void computeShift(unsigned long mask, unsigned char &left_shift,
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unsigned char &right_shift);
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Pixmap createPixmap(Display *dpy, int scr, Window win);
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private:
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int width, height, area;
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unsigned char *rgb_data;
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unsigned char *png_alpha;
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int readJpeg(const char *filename, int *width, int *height,
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unsigned char **rgb);
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int readPng(const char *filename, int *width, int *height,
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unsigned char **rgb, unsigned char **alpha);
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};
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#endif /* _IMAGE_H_ */
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