128 lines
4.2 KiB
C++
128 lines
4.2 KiB
C++
// -*- mode: C++; indent-tabs-mode: nil; c-basic-offset: 2; -*-
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// Color.hh for Blackbox - an X11 Window manager
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// Copyright (c) 2001 - 2002 Sean 'Shaleh' Perry <shaleh at debian.org>
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// Copyright (c) 1997 - 2000, 2002 Bradley T Hughes <bhughes at trolltech.com>
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//
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// Permission is hereby granted, free of charge, to any person obtaining a
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// copy of this software and associated documentation files (the "Software"),
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// to deal in the Software without restriction, including without limitation
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// the rights to use, copy, modify, merge, publish, distribute, sublicense,
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// and/or sell copies of the Software, and to permit persons to whom the
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// Software is furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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// DEALINGS IN THE SOFTWARE.
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#ifndef COLOR_HH
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#define COLOR_HH
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extern "C" {
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#include <X11/Xlib.h>
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}
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#include <map>
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#include <string>
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class BaseDisplay;
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class BColor {
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public:
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BColor(const BaseDisplay * const _display = 0, unsigned int _screen = ~(0u));
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BColor(int _r, int _g, int _b,
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const BaseDisplay * const _display, unsigned int _screen = ~(0u));
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BColor(const std::string &_name,
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const BaseDisplay * const _display, unsigned int _screen = ~(0u));
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~BColor(void);
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inline const std::string &name(void) const { return colorname; }
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inline int red(void) const { return r; }
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inline int green(void) const { return g; }
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inline int blue(void) const { return b; }
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void setRGB(int _r, int _g, int _b) {
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deallocate();
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r = _r;
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g = _g;
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b = _b;
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}
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inline const BaseDisplay *display(void) const { return dpy; }
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inline unsigned int screen(void) const { return scrn; }
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void setDisplay(const BaseDisplay * const _display,
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unsigned int _screen = ~(0u));
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inline bool isAllocated(void) const { return allocated; }
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inline bool isValid(void) const { return r != -1 && g != -1 && b != -1; }
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unsigned long pixel(void) const;
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// operators
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BColor &operator=(const BColor &c);
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inline bool operator==(const BColor &c) const
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{ return (r == c.r && b == c.b && b == c.b); }
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inline bool operator!=(const BColor &c) const
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{ return (! operator==(c)); }
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static void cleanupColorCache(void);
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private:
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void parseColorName(void);
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void allocate(void);
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void deallocate(void);
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bool allocated;
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int r, g, b;
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unsigned long p;
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const BaseDisplay *dpy;
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unsigned int scrn;
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std::string colorname;
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// global color allocator/deallocator
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struct RGB {
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const BaseDisplay* const display;
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const unsigned int screen;
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const int r, g, b;
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RGB(void) : display(0), screen(~(0u)), r(-1), g(-1), b(-1) { }
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RGB(const BaseDisplay * const a, const unsigned int b,
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const int x, const int y, const int z)
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: display(a), screen(b), r(x), g(y), b(z) {}
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RGB(const RGB &x)
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: display(x.display), screen(x.screen), r(x.r), g(x.g), b(x.b) {}
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inline bool operator==(const RGB &x) const {
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return display == x.display &&
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screen == x.screen &&
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r == x.r && g == x.g && b == x.b;
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}
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inline bool operator<(const RGB &x) const {
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unsigned long p1, p2;
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p1 = (screen << 24 | r << 16 | g << 8 | b) & 0x00ffffff;
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p2 = (x.screen << 24 | x.r << 16 | x.g << 8 | x.b) & 0x00ffffff;
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return p1 < p2;
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}
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};
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struct PixelRef {
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const unsigned long p;
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unsigned int count;
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inline PixelRef(void) : p(0), count(0) { }
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inline PixelRef(const unsigned long x) : p(x), count(1) { }
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};
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typedef std::map<RGB,PixelRef> ColorCache;
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typedef ColorCache::value_type ColorCacheItem;
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static ColorCache colorcache;
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static bool cleancache;
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static void doCacheCleanup(void);
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};
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#endif // COLOR_HH
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