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      1 /*
      2  * Copyright (C) 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 GraphicsTypes_h
     27 #define GraphicsTypes_h
     28 
     29 #include "platform/PlatformExport.h"
     30 #include "public/platform/WebBlendMode.h"
     31 #include "third_party/skia/include/core/SkPaint.h"
     32 #include "third_party/skia/include/core/SkPath.h"
     33 #include "wtf/Forward.h"
     34 
     35 namespace blink {
     36 
     37 enum StrokeStyle {
     38     NoStroke,
     39     SolidStroke,
     40     DottedStroke,
     41     DashedStroke,
     42     DoubleStroke,
     43     WavyStroke,
     44 };
     45 
     46 enum InterpolationQuality {
     47     InterpolationNone = SkPaint::kNone_FilterLevel,
     48     InterpolationLow = SkPaint::kLow_FilterLevel,
     49     InterpolationMedium = SkPaint::kMedium_FilterLevel,
     50     InterpolationHigh = SkPaint::kHigh_FilterLevel,
     51 #if USE(LOW_QUALITY_IMAGE_INTERPOLATION)
     52     InterpolationDefault = InterpolationLow,
     53 #else
     54     InterpolationDefault = InterpolationHigh,
     55 #endif
     56 };
     57 
     58 enum CompositeOperator {
     59     CompositeClear,
     60     CompositeCopy,
     61     CompositeSourceOver,
     62     CompositeSourceIn,
     63     CompositeSourceOut,
     64     CompositeSourceAtop,
     65     CompositeDestinationOver,
     66     CompositeDestinationIn,
     67     CompositeDestinationOut,
     68     CompositeDestinationAtop,
     69     CompositeXOR,
     70     CompositePlusDarker,
     71     CompositePlusLighter,
     72     CompositeDifference
     73 };
     74 
     75 enum GradientSpreadMethod {
     76     SpreadMethodPad,
     77     SpreadMethodReflect,
     78     SpreadMethodRepeat
     79 };
     80 
     81 enum LineCap {
     82     ButtCap = SkPaint::kButt_Cap,
     83     RoundCap = SkPaint::kRound_Cap,
     84     SquareCap = SkPaint::kSquare_Cap
     85 };
     86 
     87 enum LineJoin {
     88     MiterJoin = SkPaint::kMiter_Join,
     89     RoundJoin = SkPaint::kRound_Join,
     90     BevelJoin = SkPaint::kBevel_Join
     91 };
     92 
     93 enum HorizontalAlignment { AlignLeft, AlignRight, AlignHCenter };
     94 
     95 enum TextBaseline { AlphabeticTextBaseline, TopTextBaseline, MiddleTextBaseline, BottomTextBaseline, IdeographicTextBaseline, HangingTextBaseline };
     96 
     97 enum TextAlign { StartTextAlign, EndTextAlign, LeftTextAlign, CenterTextAlign, RightTextAlign };
     98 
     99 enum TextDrawingMode {
    100     TextModeFill      = 1 << 0,
    101     TextModeStroke    = 1 << 1,
    102 };
    103 typedef unsigned TextDrawingModeFlags;
    104 
    105 enum ColorFilter {
    106     ColorFilterNone,
    107     ColorFilterLuminanceToAlpha,
    108     ColorFilterSRGBToLinearRGB,
    109     ColorFilterLinearRGBToSRGB
    110 };
    111 
    112 enum WindRule {
    113     RULE_NONZERO = SkPath::kWinding_FillType,
    114     RULE_EVENODD = SkPath::kEvenOdd_FillType
    115 };
    116 
    117 PLATFORM_EXPORT String compositeOperatorName(CompositeOperator, WebBlendMode);
    118 PLATFORM_EXPORT bool parseCompositeAndBlendOperator(const String&, CompositeOperator&, WebBlendMode&);
    119 
    120 PLATFORM_EXPORT String lineCapName(LineCap);
    121 PLATFORM_EXPORT bool parseLineCap(const String&, LineCap&);
    122 
    123 PLATFORM_EXPORT String lineJoinName(LineJoin);
    124 PLATFORM_EXPORT bool parseLineJoin(const String&, LineJoin&);
    125 
    126 PLATFORM_EXPORT String textAlignName(TextAlign);
    127 PLATFORM_EXPORT bool parseTextAlign(const String&, TextAlign&);
    128 
    129 PLATFORM_EXPORT String textBaselineName(TextBaseline);
    130 PLATFORM_EXPORT bool parseTextBaseline(const String&, TextBaseline&);
    131 
    132 } // namespace blink
    133 
    134 #endif
    135