WebCore/GraphicsContextPrivate.h

   1 /*
   2  * Copyright (C) 2003, 2004, 2005, 2006 Apple Computer, Inc.  All rights reserved.
   3  *
   4  * Redistribution and use in source and binary forms, with or without
   5  * modification, are permitted provided that the following conditions
   6  * are met:
   7  * 1. Redistributions of source code must retain the above copyright
   8  *    notice, this list of conditions and the following disclaimer.
   9  * 2. Redistributions in binary form must reproduce the above copyright
  10  *    notice, this list of conditions and the following disclaimer in the
  11  *    documentation and/or other materials provided with the distribution.
  12  *
  13  * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
  14  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  15  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  16  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
  17  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
  18  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  19  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
  20  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
  21  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  22  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  23  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  24  */
  25
  26 #ifndef GraphicsContextPrivate_h
  27 #define GraphicsContextPrivate_h
  28
  29 #include "TransformationMatrix.h"
  30 #include "Gradient.h"
  31 #include "GraphicsContext.h"
  32 #include "Pattern.h"
  33
  34 namespace WebCore {
  35
  36 // FIXME: This is a place-holder until we decide to add
  37 // real color space support to WebCore.  At that time, ColorSpace will be a
  38 // class and instances will be held  off of Colors.   There will be
  39 // special singleton Gradient and Pattern color spaces to mark when
  40 // a fill or stroke is using a gradient or pattern instead of a solid color.
  41 // https://bugs.webkit.org/show_bug.cgi?id=20558
  42     enum ColorSpace {
  43         SolidColorSpace,
  44         PatternColorSpace,
  45         GradientColorSpace
  46     };
  47
  48     struct GraphicsContextState {
  49         GraphicsContextState()
  50             : textDrawingMode(cTextFill)
  51             , strokeStyle(SolidStroke)
  52             , strokeThickness(0)
  53 #if PLATFORM(CAIRO)
  54             , globalAlpha(1.0f)
  55 #endif
  56             , strokeColorSpace(SolidColorSpace)
  57             , strokeColor(Color::black)
  58             , fillRule(RULE_NONZERO)
  59             , fillColorSpace(SolidColorSpace)
  60             , fillColor(Color::black)
  61             , shouldAntialias(true)
  62             , paintingDisabled(false)
  63             , shadowBlur(0)
  64             , shadowsIgnoreTransforms(false)
  65             , emojiDrawingEnabled(true)
  66         {
  67         }
  68
  69         int textDrawingMode;
  70
  71         StrokeStyle strokeStyle;
  72         float strokeThickness;
  73 #if PLATFORM(CAIRO)
  74         float globalAlpha;
  75 #elif PLATFORM(QT)
  76         TransformationMatrix pathTransform;
  77 #endif
  78         ColorSpace strokeColorSpace;
  79         Color strokeColor;
  80         RefPtr<Gradient> strokeGradient;
  81         RefPtr<Pattern> strokePattern;
  82
  83         WindRule fillRule;
  84         GradientSpreadMethod spreadMethod;
  85         ColorSpace fillColorSpace;
  86         Color fillColor;
  87         RefPtr<Gradient> fillGradient;
  88         RefPtr<Pattern> fillPattern;
  89
  90         bool shouldAntialias;
  91
  92         bool paintingDisabled;
  93
  94         IntSize shadowSize;
  95         unsigned shadowBlur;
  96         Color shadowColor;
  97
  98         bool shadowsIgnoreTransforms;
  99
 100         bool emojiDrawingEnabled;
 101     };
 102
 103     class GraphicsContextPrivate {
 104     public:
 105         GraphicsContextPrivate()
 106             : m_focusRingWidth(0)
 107             , m_focusRingOffset(0)
 108             , m_updatingControlTints(false)
 109         {
 110         }
 111
 112         GraphicsContextState state;
 113         Vector<GraphicsContextState> stack;
 114         Vector<IntRect> m_focusRingRects;
 115         int m_focusRingWidth;
 116         int m_focusRingOffset;
 117         bool m_updatingControlTints;
 118     };
 119
 120 } // namespace WebCore
 121
 122 #endif // GraphicsContextPrivate_h