1/*
2 * Copyright (C) 2013 Apple 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 INC. AND ITS CONTRIBUTORS ``AS IS''
14 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
15 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
17 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
18 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
19 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
20 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
21 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
22 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
23 * THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26#pragma once
27
28#include "Color.h"
29#include "GraphicsTypes.h"
30#include "RenderStyleConstants.h"
31
32namespace WebCore {
33
34class Frame;
35class GraphicsContext;
36class RenderText;
37class RenderStyle;
38class ShadowData;
39struct PaintInfo;
40
41struct TextPaintStyle {
42 TextPaintStyle() { }
43 TextPaintStyle(const Color&);
44
45 bool operator==(const TextPaintStyle&) const;
46 bool operator!=(const TextPaintStyle& other) const { return !(*this == other); }
47
48 Color fillColor;
49 Color strokeColor;
50 Color emphasisMarkColor;
51 float strokeWidth { 0 };
52#if ENABLE(LETTERPRESS)
53 bool useLetterpressEffect { false };
54#endif
55 PaintOrder paintOrder { PaintOrder::Normal };
56 LineJoin lineJoin { MiterJoin };
57 LineCap lineCap { ButtCap };
58 float miterLimit { defaultMiterLimit };
59};
60
61bool textColorIsLegibleAgainstBackgroundColor(const Color& textColor, const Color& backgroundColor);
62TextPaintStyle computeTextPaintStyle(const Frame&, const RenderStyle&, const PaintInfo&);
63TextPaintStyle computeTextSelectionPaintStyle(const TextPaintStyle&, const RenderText&, const RenderStyle&, const PaintInfo&, Optional<ShadowData>& selectionShadow);
64
65enum FillColorType { UseNormalFillColor, UseEmphasisMarkColor };
66void updateGraphicsContext(GraphicsContext&, const TextPaintStyle&, FillColorType = UseNormalFillColor);
67
68} // namespace WebCore
69