| /* |
| * Copyright (C) 2020-2021 Apple 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 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. |
| */ |
| |
| #pragma once |
| |
| #include "AffineTransform.h" |
| #include "Color.h" |
| #include "Gradient.h" |
| #include "GraphicsContext.h" |
| #include "Pattern.h" |
| #include "TextFlags.h" |
| #include <wtf/UniqueRef.h> |
| |
| #if USE(CORE_TEXT) |
| #include <CoreGraphics/CoreGraphics.h> |
| #include <CoreText/CoreText.h> |
| #if PLATFORM(WIN) |
| #include <pal/spi/win/CoreTextSPIWin.h> |
| #else |
| #include <pal/spi/cf/CoreTextSPI.h> |
| #endif |
| #include <pal/spi/cg/CoreGraphicsSPI.h> |
| #endif |
| |
| namespace WebCore { |
| |
| class FloatPoint; |
| class Font; |
| class GlyphBuffer; |
| class GraphicsContext; |
| |
| class DrawGlyphsRecorder { |
| public: |
| enum class DeconstructDrawGlyphs : bool { No, Yes }; |
| enum class DeriveFontFromContext : bool { No, Yes }; |
| explicit DrawGlyphsRecorder(GraphicsContext&, DeconstructDrawGlyphs = DeconstructDrawGlyphs::No, DeriveFontFromContext = DeriveFontFromContext::No); |
| |
| void drawGlyphs(const Font&, const GlyphBufferGlyph*, const GlyphBufferAdvance*, unsigned numGlyphs, const FloatPoint& anchorPoint, FontSmoothingMode); |
| |
| #if USE(CORE_TEXT) && !PLATFORM(WIN) |
| void drawNativeText(CTFontRef, CGFloat fontSize, CTLineRef, CGRect lineRect); |
| |
| void recordBeginLayer(CGRenderingStateRef, CGGStateRef, CGRect); |
| void recordEndLayer(CGRenderingStateRef, CGGStateRef); |
| void recordDrawGlyphs(CGRenderingStateRef, CGGStateRef, const CGAffineTransform*, const CGGlyph[], const CGPoint positions[], size_t count); |
| void recordDrawImage(CGRenderingStateRef, CGGStateRef, CGRect, CGImageRef); |
| #endif |
| |
| DeconstructDrawGlyphs deconstructDrawGlyphs() const { return m_deconstructDrawGlyphs; } |
| |
| private: |
| #if USE(CORE_TEXT) && !PLATFORM(WIN) |
| UniqueRef<GraphicsContext> createInternalContext(); |
| #endif |
| |
| void populateInternalState(const GraphicsContextState&); |
| void populateInternalContext(const GraphicsContextState&); |
| void prepareInternalContext(const Font&, FontSmoothingMode); |
| void concludeInternalContext(); |
| |
| void updateFillColor(const Color&, Gradient* = nullptr, Pattern* = nullptr); |
| void updateStrokeColor(const Color&, Gradient* = nullptr, Pattern* = nullptr); |
| void updateCTM(const AffineTransform&); |
| enum class ShadowsIgnoreTransforms { |
| Unspecified, |
| Yes, |
| No |
| }; |
| void updateShadow(const FloatSize& shadowOffset, float shadowBlur, const Color& shadowColor, ShadowsIgnoreTransforms); |
| |
| #if USE(CORE_TEXT) && !PLATFORM(WIN) |
| void updateShadow(CGStyleRef); |
| #endif |
| |
| GraphicsContext& m_owner; |
| DeconstructDrawGlyphs m_deconstructDrawGlyphs; |
| DeriveFontFromContext m_deriveFontFromContext; |
| |
| #if USE(CORE_TEXT) && !PLATFORM(WIN) |
| UniqueRef<GraphicsContext> m_internalContext; |
| #endif |
| |
| const Font* m_originalFont { nullptr }; |
| FontSmoothingMode m_smoothingMode { FontSmoothingMode::AutoSmoothing }; |
| AffineTransform m_originalTextMatrix; |
| |
| struct State { |
| struct Style { |
| Color color; |
| RefPtr<Gradient> gradient; |
| AffineTransform gradientSpaceTransform; |
| RefPtr<Pattern> pattern; |
| }; |
| Style fillStyle; |
| Style strokeStyle; |
| |
| AffineTransform ctm; |
| |
| struct ShadowState { |
| FloatSize offset; |
| float blur { 0 }; |
| Color color; |
| bool ignoreTransforms { false }; |
| }; |
| ShadowState shadow; |
| }; |
| State m_originalState; |
| State m_currentState; |
| }; |
| |
| } // namespace WebCore |