/* * Copyright (C) 2011 Igalia S.L. * * 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 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 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. */ #ifndef PlatformContextCairo_h #define PlatformContextCairo_h #if USE(CAIRO) #include "GraphicsContext.h" #include "RefPtrCairo.h" namespace WebCore { class GraphicsContextPlatformPrivate; struct GraphicsContextState; namespace Cairo { struct FillSource; struct StrokeSource; struct ShadowState; } // Much like PlatformContextSkia in the Skia port, this class holds information that // would normally be private to GraphicsContext, except that we want to allow access // to it in Font and Image code. This allows us to separate the concerns of Cairo-specific // code from the platform-independent GraphicsContext. class PlatformContextCairo { WTF_MAKE_NONCOPYABLE(PlatformContextCairo); public: PlatformContextCairo(cairo_t*); ~PlatformContextCairo(); cairo_t* cr() { return m_cr.get(); } void setCr(cairo_t* cr) { m_cr = cr; } GraphicsContextPlatformPrivate* graphicsContextPrivate() { return m_graphicsContextPrivate; } void setGraphicsContextPrivate(GraphicsContextPlatformPrivate* graphicsContextPrivate) { m_graphicsContextPrivate = graphicsContextPrivate; } Vector<float>& layers() { return m_layers; } void save(); void restore(); void pushImageMask(cairo_surface_t*, const FloatRect&); private: RefPtr<cairo_t> m_cr; // Keeping a pointer to GraphicsContextPlatformPrivate here enables calling // Windows-specific methods from CairoOperations (where only PlatformContextCairo // can be leveraged). GraphicsContextPlatformPrivate* m_graphicsContextPrivate { nullptr }; class State; State* m_state; WTF::Vector<State> m_stateStack; // Transparency layers. Vector<float> m_layers; }; } // namespace WebCore #endif // USE(CAIRO) #endif // PlatformContextCairo_h