/* * Copyright (C) 2006, 2008 Apple Inc. All rights reserved. * Copyright (C) 2008, 2010 Nokia Corporation and/or its subsidiary(-ies) * Copyright (C) 2007 Alp Toker * Copyright (C) 2008 Eric Seidel * * 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. */ #include "config.h" #include "CanvasStyle.h" #include "CSSParser.h" #include "CanvasGradient.h" #include "CanvasPattern.h" #include "GraphicsContext.h" #include #include #if PLATFORM(CG) #include #endif #if PLATFORM(QT) #include #include #include #include #endif namespace WebCore { CanvasStyle::CanvasStyle(RGBA32 rgba) : m_type(RGBA) , m_rgba(rgba) { } CanvasStyle::CanvasStyle(float grayLevel) : m_type(RGBA) , m_rgba(makeRGBA32FromFloats(grayLevel, grayLevel, grayLevel, 1.0f)) { } CanvasStyle::CanvasStyle(float grayLevel, float alpha) : m_type(RGBA) , m_rgba(makeRGBA32FromFloats(grayLevel, grayLevel, grayLevel, alpha)) { } CanvasStyle::CanvasStyle(float r, float g, float b, float a) : m_type(RGBA) , m_rgba(makeRGBA32FromFloats(r, g, b, a)) { } CanvasStyle::CanvasStyle(float c, float m, float y, float k, float a) : m_type(CMYKA) , m_rgba(makeRGBAFromCMYKA(c, m, y, k, a)) , m_cmyka(c, m, y, k, a) { } CanvasStyle::CanvasStyle(PassRefPtr gradient) : m_type(Gradient) , m_gradient(gradient) { } CanvasStyle::CanvasStyle(PassRefPtr pattern) : m_type(ImagePattern) , m_pattern(pattern) { } PassRefPtr CanvasStyle::create(const String& color) { RGBA32 rgba; if (!CSSParser::parseColor(rgba, color)) return 0; return adoptRef(new CanvasStyle(rgba)); } PassRefPtr CanvasStyle::create(const String& color, float alpha) { RGBA32 rgba; if (!CSSParser::parseColor(rgba, color)) return 0; return adoptRef(new CanvasStyle(colorWithOverrideAlpha(rgba, alpha))); } PassRefPtr CanvasStyle::create(PassRefPtr gradient) { if (!gradient) return 0; return adoptRef(new CanvasStyle(gradient)); } PassRefPtr CanvasStyle::create(PassRefPtr pattern) { if (!pattern) return 0; return adoptRef(new CanvasStyle(pattern)); } bool CanvasStyle::isEquivalentColor(const CanvasStyle& other) const { if (m_type != other.m_type) return false; switch (m_type) { case CanvasStyle::RGBA: return m_rgba == other.m_rgba; case CanvasStyle::CMYKA: return m_cmyka.c == other.m_cmyka.c && m_cmyka.m == other.m_cmyka.m && m_cmyka.y == other.m_cmyka.y && m_cmyka.k == other.m_cmyka.k && m_cmyka.a == other.m_cmyka.a; case CanvasStyle::Gradient: case CanvasStyle::ImagePattern: return false; } ASSERT_NOT_REACHED(); return false; } void CanvasStyle::applyStrokeColor(GraphicsContext* context) { if (!context) return; switch (m_type) { case RGBA: context->setStrokeColor(m_rgba, DeviceColorSpace); break; case CMYKA: { // FIXME: Do this through platform-independent GraphicsContext API. // We'll need a fancier Color abstraction to support CMYKA correctly #if PLATFORM(CG) CGContextSetCMYKStrokeColor(context->platformContext(), m_cmyka.c, m_cmyka.m, m_cmyka.y, m_cmyka.k, m_cmyka.a); #elif PLATFORM(QT) QPen currentPen = context->platformContext()->pen(); QColor clr; clr.setCmykF(m_cmyka.c, m_cmyka.m, m_cmyka.y, m_cmyka.k, m_cmyka.a); currentPen.setColor(clr); context->platformContext()->setPen(currentPen); #else context->setStrokeColor(m_rgba, DeviceColorSpace); #endif break; } case Gradient: context->setStrokeGradient(canvasGradient()->gradient()); break; case ImagePattern: context->setStrokePattern(canvasPattern()->pattern()); break; } } void CanvasStyle::applyFillColor(GraphicsContext* context) { if (!context) return; switch (m_type) { case RGBA: context->setFillColor(m_rgba, DeviceColorSpace); break; case CMYKA: { // FIXME: Do this through platform-independent GraphicsContext API. // We'll need a fancier Color abstraction to support CMYKA correctly #if PLATFORM(CG) CGContextSetCMYKFillColor(context->platformContext(), m_cmyka.c, m_cmyka.m, m_cmyka.y, m_cmyka.k, m_cmyka.a); #elif PLATFORM(QT) QBrush currentBrush = context->platformContext()->brush(); QColor clr; clr.setCmykF(m_cmyka.c, m_cmyka.m, m_cmyka.y, m_cmyka.k, m_cmyka.a); currentBrush.setColor(clr); context->platformContext()->setBrush(currentBrush); #else context->setFillColor(m_rgba, DeviceColorSpace); #endif break; } case Gradient: context->setFillGradient(canvasGradient()->gradient()); break; case ImagePattern: context->setFillPattern(canvasPattern()->pattern()); break; } } }