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1 /* | |
2 * Copyright (C) 2000 Lars Knoll (knoll@kde.org) | |
3 * (C) 2000 Antti Koivisto (koivisto@kde.org) | |
4 * (C) 2000 Dirk Mueller (mueller@kde.org) | |
5 * Copyright (C) 2003, 2005, 2006, 2007, 2008 Apple Inc. All rights reserved. | |
6 * | |
7 * This library is free software; you can redistribute it and/or | |
8 * modify it under the terms of the GNU Library General Public | |
9 * License as published by the Free Software Foundation; either | |
10 * version 2 of the License, or (at your option) any later version. | |
11 * | |
12 * This library is distributed in the hope that it will be useful, | |
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
15 * Library General Public License for more details. | |
16 * | |
17 * You should have received a copy of the GNU Library General Public License | |
18 * along with this library; see the file COPYING.LIB. If not, write to | |
19 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, | |
20 * Boston, MA 02110-1301, USA. | |
21 * | |
22 */ | |
23 | |
24 #include "config.h" | |
25 #include "core/layout/style/StyleGeneratedImage.h" | |
26 | |
27 #include "core/css/CSSImageGeneratorValue.h" | |
28 #include "core/css/resolver/StyleResolver.h" | |
29 #include "core/layout/LayoutObject.h" | |
30 | |
31 namespace blink { | |
32 | |
33 StyleGeneratedImage::StyleGeneratedImage(PassRefPtrWillBeRawPtr<CSSImageGenerato
rValue> value) | |
34 : m_imageGeneratorValue(value) | |
35 , m_fixedSize(m_imageGeneratorValue->isFixedSize()) | |
36 { | |
37 m_isGeneratedImage = true; | |
38 } | |
39 | |
40 PassRefPtrWillBeRawPtr<CSSValue> StyleGeneratedImage::cssValue() const | |
41 { | |
42 return m_imageGeneratorValue.get(); | |
43 } | |
44 | |
45 LayoutSize StyleGeneratedImage::imageSize(const LayoutObject* layoutObject, floa
t multiplier) const | |
46 { | |
47 if (m_fixedSize) { | |
48 LayoutSize fixedSize(m_imageGeneratorValue->fixedSize(layoutObject)); | |
49 if (multiplier == 1.0f) | |
50 return fixedSize; | |
51 | |
52 LayoutUnit width = fixedSize.width() * multiplier; | |
53 LayoutUnit height = fixedSize.height() * multiplier; | |
54 | |
55 // Don't let images that have a width/height >= 1 shrink below 1 when zo
omed. | |
56 if (fixedSize.width() > 0) | |
57 width = max<LayoutUnit>(1, width); | |
58 | |
59 if (fixedSize.height() > 0) | |
60 height = max<LayoutUnit>(1, height); | |
61 | |
62 return LayoutSize(width, height); | |
63 } | |
64 | |
65 return LayoutSize(m_containerSize); | |
66 } | |
67 | |
68 void StyleGeneratedImage::computeIntrinsicDimensions(const LayoutObject* layoutO
bject, Length& intrinsicWidth, Length& intrinsicHeight, FloatSize& intrinsicRati
o) | |
69 { | |
70 // At a zoom level of 1 the image is guaranteed to have an integer size. | |
71 IntSize size = flooredIntSize(imageSize(layoutObject, 1)); | |
72 intrinsicWidth = Length(size.width(), Fixed); | |
73 intrinsicHeight = Length(size.height(), Fixed); | |
74 intrinsicRatio = size; | |
75 } | |
76 | |
77 void StyleGeneratedImage::addClient(LayoutObject* layoutObject) | |
78 { | |
79 m_imageGeneratorValue->addClient(layoutObject, IntSize()); | |
80 } | |
81 | |
82 void StyleGeneratedImage::removeClient(LayoutObject* layoutObject) | |
83 { | |
84 m_imageGeneratorValue->removeClient(layoutObject); | |
85 } | |
86 | |
87 PassRefPtr<Image> StyleGeneratedImage::image(LayoutObject* layoutObject, const I
ntSize& size) const | |
88 { | |
89 return m_imageGeneratorValue->image(layoutObject, size); | |
90 } | |
91 | |
92 bool StyleGeneratedImage::knownToBeOpaque(const LayoutObject* layoutObject) cons
t | |
93 { | |
94 return m_imageGeneratorValue->knownToBeOpaque(layoutObject); | |
95 } | |
96 | |
97 } | |
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