/* * Copyright (C) 2003, 2004, 2005, 2006 Apple Computer, Inc. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #import "config.h" #import "ColorMac.h" #import <wtf/RetainPtr.h> #import <wtf/StdLibExtras.h> namespace WebCore { // NSColor calls don't throw, so no need to block Cocoa exceptions in this file static bool useOldAquaFocusRingColor; RGBA32 oldAquaFocusRingColor() { return 0xFF7DADD9; } void setUsesTestModeFocusRingColor(bool newValue) { useOldAquaFocusRingColor = newValue; } bool usesTestModeFocusRingColor() { return useOldAquaFocusRingColor; } static RGBA32 makeRGBAFromNSColor(NSColor *c) { CGFloat redComponent; CGFloat greenComponent; CGFloat blueComponent; CGFloat alpha; [c getRed:&redComponent green:&greenComponent blue:&blueComponent alpha:&alpha]; return makeRGBA(255 * redComponent, 255 * greenComponent, 255 * blueComponent, 255 * alpha); } Color colorFromNSColor(NSColor *c) { return Color(makeRGBAFromNSColor(c)); } NSColor *nsColor(const Color& color) { RGBA32 c = color.rgb(); switch (c) { case 0: { // Need this to avoid returning nil because cachedRGBAValues will default to 0. DEFINE_STATIC_LOCAL(RetainPtr<NSColor>, clearColor, ([NSColor colorWithDeviceRed:0 green:0 blue:0 alpha:0])); return clearColor.get(); } case Color::black: { DEFINE_STATIC_LOCAL(RetainPtr<NSColor>, blackColor, ([NSColor colorWithDeviceRed:0 green:0 blue:0 alpha:1])); return blackColor.get(); } case Color::white: { DEFINE_STATIC_LOCAL(RetainPtr<NSColor>, whiteColor, ([NSColor colorWithDeviceRed:1 green:1 blue:1 alpha:1])); return whiteColor.get(); } default: { const int cacheSize = 32; static unsigned cachedRGBAValues[cacheSize]; static RetainPtr<NSColor>* cachedColors = new RetainPtr<NSColor>[cacheSize]; for (int i = 0; i != cacheSize; ++i) if (cachedRGBAValues[i] == c) return cachedColors[i].get(); NSColor *result = [NSColor colorWithDeviceRed:static_cast<CGFloat>(color.red()) / 255 green:static_cast<CGFloat>(color.green()) / 255 blue:static_cast<CGFloat>(color.blue()) / 255 alpha:static_cast<CGFloat>(color.alpha()) /255]; static int cursor; cachedRGBAValues[cursor] = c; cachedColors[cursor] = result; if (++cursor == cacheSize) cursor = 0; return result; } } } static CGColorRef CGColorFromNSColor(NSColor *color) { // This needs to always use device colorspace so it can de-calibrate the color for // CGColor to possibly recalibrate it. CGFloat components[4]; NSColor *deviceColor = [color colorUsingColorSpaceName:NSDeviceRGBColorSpace]; [deviceColor getRed:&components[0] green:&components[1] blue:&components[2] alpha:&components[3]]; static CGColorSpaceRef deviceRGBColorSpace = CGColorSpaceCreateDeviceRGB(); CGColorRef cgColor = CGColorCreate(deviceRGBColorSpace, components); return cgColor; } CGColorRef createCGColor(const Color& c) { // We could directly create a CGColor here, but that would // skip any RGB caching the nsColor method does. A direct // creation could be investigated for a possible performance win. return CGColorFromNSColor(nsColor(c)); } } // namespace WebCore