1/* 2Open Tracker License 3 4Terms and Conditions 5 6Copyright (c) 1991-2000, Be Incorporated. All rights reserved. 7 8Permission is hereby granted, free of charge, to any person obtaining a copy of 9this software and associated documentation files (the "Software"), to deal in 10the Software without restriction, including without limitation the rights to 11use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies 12of the Software, and to permit persons to whom the Software is furnished to do 13so, subject to the following conditions: 14 15The above copyright notice and this permission notice applies to all licensees 16and shall be included in all copies or substantial portions of the Software. 17 18THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 19IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF TITLE, MERCHANTABILITY, 20FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 21BE INCORPORATED BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN 22AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF, OR IN CONNECTION 23WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 24 25Except as contained in this notice, the name of Be Incorporated shall not be 26used in advertising or otherwise to promote the sale, use or other dealings in 27this Software without prior written authorization from Be Incorporated. 28 29Tracker(TM), Be(R), BeOS(R), and BeIA(TM) are trademarks or registered trademarks 30of Be Incorporated in the United States and other countries. Other brand product 31names are registered trademarks or trademarks of their respective holders. 32All rights reserved. 33*/ 34 35/******************************************************************************* 36/ 37/ File: ColorTools.h 38/ 39/ Description: Additional experimental color manipulation functions. 40/ 41/ Copyright 2000, Be Incorporated, All Rights Reserved 42/ 43*******************************************************************************/ 44 45 46#ifndef _COLOR_TOOLS_H 47#define _COLOR_TOOLS_H 48 49#include <GraphicsDefs.h> 50 51#if B_BEOS_VERSION <= B_BEOS_VERSION_5 52 53namespace BExperimental { 54 55// Comparison operators. 56 57inline bool operator==(const rgb_color c1, const rgb_color c2) 58{ 59 return (*((uint32*)&c1)) == (*((uint32*)&c2)); 60} 61 62inline bool operator!=(const rgb_color c1, const rgb_color c2) 63{ 64 return (*((uint32*)&c1)) != (*((uint32*)&c2)); 65} 66 67#ifndef __HAIKU__ 68// Color creation. 69 70inline rgb_color make_color(uint8 red, uint8 green, uint8 blue, uint8 alpha=255) 71{ 72 rgb_color c; 73 c.red = red; 74 c.green = green; 75 c.blue = blue; 76 c.alpha = alpha; 77 return c; 78} 79#endif 80 81// Mix two colors together, ignoring their relative alpha channels. 82// If amount is 0, the result is color1; if 255, the result is color2; 83// if another value, it is somewhere in-between. The resulting alpha 84// channel is mixed exactly like the other color channels. 85rgb_color mix_color(rgb_color color1, rgb_color color2, uint8 amount); 86 87// Blend two colors together, weighting by their relative alpha channels. 88// The resulting color is the same as mix_color(), except that the amount 89// used from color1 and color2's color channels is dependent on that color's 90// alpha channel. For example, if color1.alpha is 0 and color2.alpha is 91// 255, the resulting red, green, and blue values will be the same as those 92// in color2, regardless of 'amount'. 93rgb_color blend_color(rgb_color color1, rgb_color color2, uint8 amount); 94 95// Return a color that is the disabled representation of 'color' when drawn 96// on a solid color 'background'. 97rgb_color disable_color(rgb_color color, rgb_color background); 98 99} // namespace BExperimental 100 101using namespace BExperimental; 102 103#endif 104 105#endif 106