106 lines
3.6 KiB
C++
106 lines
3.6 KiB
C++
/*
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Open Tracker License
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Terms and Conditions
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Copyright (c) 1991-2000, Be Incorporated. All rights reserved.
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Permission is hereby granted, free of charge, to any person obtaining a copy of
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this software and associated documentation files (the "Software"), to deal in
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the Software without restriction, including without limitation the rights to
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use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
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of the Software, and to permit persons to whom the Software is furnished to do
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so, subject to the following conditions:
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The above copyright notice and this permission notice applies to all licensees
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and shall be included in all copies or substantial portions of the Software.
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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 TITLE, MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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BE INCORPORATED BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
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AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF, OR IN CONNECTION
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WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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Except as contained in this notice, the name of Be Incorporated shall not be
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used in advertising or otherwise to promote the sale, use or other dealings in
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this Software without prior written authorization from Be Incorporated.
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Tracker(TM), Be(R), BeOS(R), and BeIA(TM) are trademarks or registered trademarks
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of Be Incorporated in the United States and other countries. Other brand product
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names are registered trademarks or trademarks of their respective holders.
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All rights reserved.
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*/
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/*******************************************************************************
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/
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/ File: ColorTools.h
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/
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/ Description: Additional experimental color manipulation functions.
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/
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/ Copyright 2000, Be Incorporated, All Rights Reserved
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/
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*******************************************************************************/
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#ifndef _COLOR_TOOLS_H
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#define _COLOR_TOOLS_H
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#include <GraphicsDefs.h>
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#if B_BEOS_VERSION <= B_BEOS_VERSION_5
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namespace BExperimental {
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// Comparison operators.
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inline bool operator==(const rgb_color c1, const rgb_color c2)
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{
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return (*((uint32*)&c1)) == (*((uint32*)&c2));
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}
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inline bool operator!=(const rgb_color c1, const rgb_color c2)
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{
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return (*((uint32*)&c1)) != (*((uint32*)&c2));
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}
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#ifndef __HAIKU__
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// Color creation.
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inline rgb_color make_color(uint8 red, uint8 green, uint8 blue, uint8 alpha=255)
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{
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rgb_color c;
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c.red = red;
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c.green = green;
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c.blue = blue;
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c.alpha = alpha;
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return c;
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}
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#endif
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// Mix two colors together, ignoring their relative alpha channels.
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// If amount is 0, the result is color1; if 255, the result is color2;
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// if another value, it is somewhere in-between. The resulting alpha
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// channel is mixed exactly like the other color channels.
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rgb_color mix_color(rgb_color color1, rgb_color color2, uint8 amount);
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// Blend two colors together, weighting by their relative alpha channels.
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// The resulting color is the same as mix_color(), except that the amount
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// used from color1 and color2's color channels is dependent on that color's
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// alpha channel. For example, if color1.alpha is 0 and color2.alpha is
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// 255, the resulting red, green, and blue values will be the same as those
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// in color2, regardless of 'amount'.
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rgb_color blend_color(rgb_color color1, rgb_color color2, uint8 amount);
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// Return a color that is the disabled representation of 'color' when drawn
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// on a solid color 'background'.
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rgb_color disable_color(rgb_color color, rgb_color background);
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} // namespace BExperimental
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using namespace BExperimental;
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#endif
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#endif
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