1 | /* |
2 | * Copyright (C) 2006 Oliver Hunt <ojh16@student.canterbury.ac.nz> |
3 | * Copyright (C) 2006, 2008 Apple Inc. All rights reserved. |
4 | * Copyright (C) 2008 Rob Buis <buis@kde.org> |
5 | * |
6 | * This library is free software; you can redistribute it and/or |
7 | * modify it under the terms of the GNU Library General Public |
8 | * License as published by the Free Software Foundation; either |
9 | * version 2 of the License, or (at your option) any later version. |
10 | * |
11 | * This library is distributed in the hope that it will be useful, |
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
14 | * Library General Public License for more details. |
15 | * |
16 | * You should have received a copy of the GNU Library General Public License |
17 | * along with this library; see the file COPYING.LIB. If not, write to |
18 | * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
19 | * Boston, MA 02110-1301, USA. |
20 | */ |
21 | |
22 | #pragma once |
23 | |
24 | #include "FontCascade.h" |
25 | #include "RenderText.h" |
26 | #include "SVGTextLayoutAttributes.h" |
27 | #include "Text.h" |
28 | |
29 | namespace WebCore { |
30 | |
31 | class SVGInlineTextBox; |
32 | |
33 | class RenderSVGInlineText final : public RenderText { |
34 | WTF_MAKE_ISO_ALLOCATED(RenderSVGInlineText); |
35 | public: |
36 | RenderSVGInlineText(Text&, const String&); |
37 | |
38 | Text& textNode() const { return downcast<Text>(nodeForNonAnonymous()); } |
39 | |
40 | bool characterStartsNewTextChunk(int position) const; |
41 | SVGTextLayoutAttributes* layoutAttributes() { return &m_layoutAttributes; } |
42 | |
43 | float scalingFactor() const { return m_scalingFactor; } |
44 | const FontCascade& scaledFont() const { return m_scaledFont; } |
45 | void updateScaledFont(); |
46 | static void computeNewScaledFontForStyle(const RenderObject&, const RenderStyle&, float& scalingFactor, FontCascade& scaledFont); |
47 | |
48 | // Preserves floating point precision for the use in DRT. It knows how to round and does a better job than enclosingIntRect. |
49 | FloatRect floatLinesBoundingBox() const; |
50 | |
51 | private: |
52 | const char* renderName() const override { return "RenderSVGInlineText" ; } |
53 | |
54 | String originalText() const override; |
55 | void setRenderedText(const String&) override; |
56 | void styleDidChange(StyleDifference, const RenderStyle*) override; |
57 | |
58 | FloatRect objectBoundingBox() const override { return floatLinesBoundingBox(); } |
59 | |
60 | bool isSVGInlineText() const override { return true; } |
61 | |
62 | VisiblePosition positionForPoint(const LayoutPoint&, const RenderFragmentContainer*) override; |
63 | LayoutRect localCaretRect(InlineBox*, unsigned caretOffset, LayoutUnit* = 0) override; |
64 | IntRect linesBoundingBox() const override; |
65 | std::unique_ptr<InlineTextBox> createTextBox() override; |
66 | |
67 | float m_scalingFactor; |
68 | FontCascade m_scaledFont; |
69 | SVGTextLayoutAttributes m_layoutAttributes; |
70 | }; |
71 | |
72 | } // namespace WebCore |
73 | |
74 | SPECIALIZE_TYPE_TRAITS_RENDER_OBJECT(RenderSVGInlineText, isSVGInlineText()) |
75 | |