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Side by Side Diff: Source/core/css/CSSToLengthConversionData.cpp

Issue 1033943002: Rename LayoutStyle to papayawhip (Closed) Base URL: svn://svn.chromium.org/blink/trunk
Patch Set: ensureComputedStyle Created 5 years, 8 months ago
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1 /* 1 /*
2 * Copyright (C) 2013 Google Inc. All rights reserved. 2 * Copyright (C) 2013 Google Inc. All rights reserved.
3 * 3 *
4 * Redistribution and use in source and binary forms, with or without 4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions are 5 * modification, are permitted provided that the following conditions are
6 * met: 6 * met:
7 * 7 *
8 * * Redistributions of source code must retain the above copyright 8 * * Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer. 9 * notice, this list of conditions and the following disclaimer.
10 * * Redistributions in binary form must reproduce the above 10 * * Redistributions in binary form must reproduce the above
(...skipping 14 matching lines...) Expand all
25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 */ 29 */
30 30
31 #include "config.h" 31 #include "config.h"
32 #include "core/css/CSSToLengthConversionData.h" 32 #include "core/css/CSSToLengthConversionData.h"
33 33
34 #include "core/layout/LayoutView.h" 34 #include "core/layout/LayoutView.h"
35 #include "core/layout/style/LayoutStyle.h" 35 #include "core/layout/style/ComputedStyle.h"
36 36
37 namespace blink { 37 namespace blink {
38 38
39 CSSToLengthConversionData::FontSizes::FontSizes(float em, float rem, const Font* font) 39 CSSToLengthConversionData::FontSizes::FontSizes(float em, float rem, const Font* font)
40 : m_em(em) 40 : m_em(em)
41 , m_rem(rem) 41 , m_rem(rem)
42 , m_font(font) 42 , m_font(font)
43 { 43 {
44 // FIXME: Improve RAII of StyleResolverState to use const Font&. 44 // FIXME: Improve RAII of StyleResolverState to use const Font&.
45 ASSERT(m_font); 45 ASSERT(m_font);
46 } 46 }
47 47
48 CSSToLengthConversionData::FontSizes::FontSizes(const LayoutStyle* style, const LayoutStyle* rootStyle) 48 CSSToLengthConversionData::FontSizes::FontSizes(const ComputedStyle* style, cons t ComputedStyle* rootStyle)
49 : FontSizes(style->computedFontSize(), rootStyle ? rootStyle->computedFontSi ze() : 1.0f, &style->font()) 49 : FontSizes(style->computedFontSize(), rootStyle ? rootStyle->computedFontSi ze() : 1.0f, &style->font())
50 { 50 {
51 } 51 }
52 52
53 float CSSToLengthConversionData::FontSizes::ex() const 53 float CSSToLengthConversionData::FontSizes::ex() const
54 { 54 {
55 ASSERT(m_font); 55 ASSERT(m_font);
56 // FIXME: We have a bug right now where the zoom will be applied twice to EX units. 56 // FIXME: We have a bug right now where the zoom will be applied twice to EX units.
57 // We really need to compute EX using fontMetrics for the original specified Size and not use 57 // We really need to compute EX using fontMetrics for the original specified Size and not use
58 // our actual constructed rendering font. 58 // our actual constructed rendering font.
59 if (!m_font->fontMetrics().hasXHeight()) 59 if (!m_font->fontMetrics().hasXHeight())
60 return m_em / 2.0f; 60 return m_em / 2.0f;
61 return m_font->fontMetrics().xHeight(); 61 return m_font->fontMetrics().xHeight();
62 } 62 }
63 63
64 float CSSToLengthConversionData::FontSizes::ch() const 64 float CSSToLengthConversionData::FontSizes::ch() const
65 { 65 {
66 ASSERT(m_font); 66 ASSERT(m_font);
67 return m_font->fontMetrics().zeroWidth(); 67 return m_font->fontMetrics().zeroWidth();
68 } 68 }
69 69
70 CSSToLengthConversionData::ViewportSize::ViewportSize(const LayoutView* layoutVi ew) 70 CSSToLengthConversionData::ViewportSize::ViewportSize(const LayoutView* layoutVi ew)
71 : m_width(layoutView ? layoutView->layoutViewportWidth() : 0) 71 : m_width(layoutView ? layoutView->layoutViewportWidth() : 0)
72 , m_height(layoutView ? layoutView->layoutViewportHeight() : 0) 72 , m_height(layoutView ? layoutView->layoutViewportHeight() : 0)
73 { 73 {
74 } 74 }
75 75
76 CSSToLengthConversionData::CSSToLengthConversionData(const LayoutStyle* style, c onst FontSizes& fontSizes, const ViewportSize& viewportSize, float zoom) 76 CSSToLengthConversionData::CSSToLengthConversionData(const ComputedStyle* style, const FontSizes& fontSizes, const ViewportSize& viewportSize, float zoom)
77 : m_style(style) 77 : m_style(style)
78 , m_fontSizes(fontSizes) 78 , m_fontSizes(fontSizes)
79 , m_viewportSize(viewportSize) 79 , m_viewportSize(viewportSize)
80 , m_zoom(clampTo<float>(zoom, std::numeric_limits<float>::denorm_min())) 80 , m_zoom(clampTo<float>(zoom, std::numeric_limits<float>::denorm_min()))
81 { 81 {
82 ASSERT(m_style); 82 ASSERT(m_style);
83 } 83 }
84 84
85 CSSToLengthConversionData::CSSToLengthConversionData(const LayoutStyle* style, c onst LayoutStyle* rootStyle, const LayoutView* layoutView, float zoom) 85 CSSToLengthConversionData::CSSToLengthConversionData(const ComputedStyle* style, const ComputedStyle* rootStyle, const LayoutView* layoutView, float zoom)
86 : CSSToLengthConversionData(style, FontSizes(style, rootStyle), ViewportSize (layoutView), zoom) 86 : CSSToLengthConversionData(style, FontSizes(style, rootStyle), ViewportSize (layoutView), zoom)
87 { 87 {
88 } 88 }
89 89
90 double CSSToLengthConversionData::viewportWidthPercent() const 90 double CSSToLengthConversionData::viewportWidthPercent() const
91 { 91 {
92 m_style->setHasViewportUnits(); 92 m_style->setHasViewportUnits();
93 return m_viewportSize.width() / 100; 93 return m_viewportSize.width() / 100;
94 } 94 }
95 double CSSToLengthConversionData::viewportHeightPercent() const 95 double CSSToLengthConversionData::viewportHeightPercent() const
96 { 96 {
97 m_style->setHasViewportUnits(); 97 m_style->setHasViewportUnits();
98 return m_viewportSize.height() / 100; 98 return m_viewportSize.height() / 100;
99 } 99 }
100 double CSSToLengthConversionData::viewportMinPercent() const 100 double CSSToLengthConversionData::viewportMinPercent() const
101 { 101 {
102 m_style->setHasViewportUnits(); 102 m_style->setHasViewportUnits();
103 return std::min(m_viewportSize.width(), m_viewportSize.height()) / 100; 103 return std::min(m_viewportSize.width(), m_viewportSize.height()) / 100;
104 } 104 }
105 double CSSToLengthConversionData::viewportMaxPercent() const 105 double CSSToLengthConversionData::viewportMaxPercent() const
106 { 106 {
107 m_style->setHasViewportUnits(); 107 m_style->setHasViewportUnits();
108 return std::max(m_viewportSize.width(), m_viewportSize.height()) / 100; 108 return std::max(m_viewportSize.width(), m_viewportSize.height()) / 100;
109 } 109 }
110 110
111 } // namespace blink 111 } // namespace blink
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