/*
 * Copyright (C) 2004, 2005, 2006 Apple Computer, 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 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.
 */

#ifndef GraphicsTypes_h
#define GraphicsTypes_h

#include "platform/PlatformExport.h"
#include "public/platform/WebBlendMode.h"
#include "third_party/skia/include/core/SkFilterQuality.h"
#include "third_party/skia/include/core/SkPaint.h"
#include "third_party/skia/include/core/SkPath.h"
#include "wtf/Forward.h"
#include "wtf/build_config.h"

namespace blink {

enum StrokeStyle {
    NoStroke,
    SolidStroke,
    DottedStroke,
    DashedStroke,
    DoubleStroke,
    WavyStroke,
};

enum InterpolationQuality {
    InterpolationNone = kNone_SkFilterQuality,
    InterpolationLow = kLow_SkFilterQuality,
    InterpolationMedium = kMedium_SkFilterQuality,
    InterpolationHigh = kHigh_SkFilterQuality,
#if USE(LOW_QUALITY_IMAGE_INTERPOLATION)
    InterpolationDefault = InterpolationLow,
#else
    InterpolationDefault = InterpolationHigh,
#endif
};

enum CompositeOperator {
    CompositeClear,
    CompositeCopy,
    CompositeSourceOver,
    CompositeSourceIn,
    CompositeSourceOut,
    CompositeSourceAtop,
    CompositeDestinationOver,
    CompositeDestinationIn,
    CompositeDestinationOut,
    CompositeDestinationAtop,
    CompositeXOR,
    CompositePlusLighter
};

enum OpacityMode {
    NonOpaque,
    Opaque,
};

enum AccelerationHint {
    PreferAcceleration,
    // The PreferAccelerationAfterVisibilityChange hint suggests we should switch back to acceleration
    // in the context of the canvas becoming visible again.
    PreferAccelerationAfterVisibilityChange,
    PreferNoAcceleration,
};

enum SnapshotReason {
    SnapshotReasonUnknown,
    SnapshotReasonGetImageData,
    SnapshotReasonCopyToWebGLTexture,
    SnapshotReasonPaint,
    SnapshotReasonToDataURL,
    SnapshotReasonToBlob,
    SnapshotReasonCanvasListenerCapture,
    SnapshotReasonDrawImage,
    SnapshotReasonCreatePattern,
};

// Note: enum used directly for histogram, values must not change
enum DisableDeferralReason {
    DisableDeferralReasonUnknown = 0, // Should not appear in production histograms
    DisableDeferralReasonExpensiveOverdrawHeuristic = 1,
    DisableDeferralReasonUsingTextureBackedPattern = 2,
    DisableDeferralReasonDrawImageOfVideo = 3,
    DisableDeferralReasonDrawImageOfAnimated2dCanvas = 4,
    DisableDeferralReasonSubPixelTextAntiAliasingSupport = 5,
    DisableDeferralReasonCount,
};

enum FlushReason {
    FlushReasonUnknown,
    FlushReasonInitialClear,
    FlushReasonDrawImageOfWebGL,
};

enum ImageInitializationMode {
    InitializeImagePixels,
    DoNotInitializeImagePixels,
};

// TODO(junov): crbug.com/453113 relocate ShadowMode to CanvasRenderingContext2DState.h once
// GraphicsContext no longer uses it.
enum ShadowMode {
    DrawShadowAndForeground,
    DrawShadowOnly,
    DrawForegroundOnly
};

enum AntiAliasingMode {
    NotAntiAliased,
    AntiAliased
};

enum GradientSpreadMethod {
    SpreadMethodPad,
    SpreadMethodReflect,
    SpreadMethodRepeat
};

enum LineCap {
    ButtCap = SkPaint::kButt_Cap,
    RoundCap = SkPaint::kRound_Cap,
    SquareCap = SkPaint::kSquare_Cap
};

enum LineJoin {
    MiterJoin = SkPaint::kMiter_Join,
    RoundJoin = SkPaint::kRound_Join,
    BevelJoin = SkPaint::kBevel_Join
};

enum HorizontalAlignment { AlignLeft, AlignRight, AlignHCenter };

enum TextBaseline { AlphabeticTextBaseline, TopTextBaseline, MiddleTextBaseline, BottomTextBaseline, IdeographicTextBaseline, HangingTextBaseline };

enum TextAlign { StartTextAlign, EndTextAlign, LeftTextAlign, CenterTextAlign, RightTextAlign };

enum TextDrawingMode {
    TextModeFill      = 1 << 0,
    TextModeStroke    = 1 << 1,
};
typedef unsigned TextDrawingModeFlags;

enum ColorFilter {
    ColorFilterNone,
    ColorFilterLuminanceToAlpha,
    ColorFilterSRGBToLinearRGB,
    ColorFilterLinearRGBToSRGB
};

enum WindRule {
    RULE_NONZERO = SkPath::kWinding_FillType,
    RULE_EVENODD = SkPath::kEvenOdd_FillType
};

PLATFORM_EXPORT String compositeOperatorName(CompositeOperator, WebBlendMode);
PLATFORM_EXPORT bool parseCompositeAndBlendOperator(const String&, CompositeOperator&, WebBlendMode&);

PLATFORM_EXPORT String lineCapName(LineCap);
PLATFORM_EXPORT bool parseLineCap(const String&, LineCap&);

PLATFORM_EXPORT String lineJoinName(LineJoin);
PLATFORM_EXPORT bool parseLineJoin(const String&, LineJoin&);

PLATFORM_EXPORT String textAlignName(TextAlign);
PLATFORM_EXPORT bool parseTextAlign(const String&, TextAlign&);

PLATFORM_EXPORT String textBaselineName(TextBaseline);
PLATFORM_EXPORT bool parseTextBaseline(const String&, TextBaseline&);

} // namespace blink

#endif