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1 /* | 1 /* |
2 * Copyright (C) 2009 Google Inc. All rights reserved. | 2 * Copyright (C) 2009 Google Inc. All rights reserved. |
3 * Copyright (C) 2011 Apple Inc. All rights reserved. | 3 * Copyright (C) 2011 Apple Inc. All rights reserved. |
4 * | 4 * |
5 * Redistribution and use in source and binary forms, with or without | 5 * Redistribution and use in source and binary forms, with or without |
6 * modification, are permitted provided that the following conditions are | 6 * modification, are permitted provided that the following conditions are |
7 * met: | 7 * met: |
8 * | 8 * |
9 * * Redistributions of source code must retain the above copyright | 9 * * Redistributions of source code must retain the above copyright |
10 * notice, this list of conditions and the following disclaimer. | 10 * notice, this list of conditions and the following disclaimer. |
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37 | 37 |
38 LayoutRubyText::LayoutRubyText(Element* element) | 38 LayoutRubyText::LayoutRubyText(Element* element) |
39 : LayoutBlockFlow(element) | 39 : LayoutBlockFlow(element) |
40 { | 40 { |
41 } | 41 } |
42 | 42 |
43 LayoutRubyText::~LayoutRubyText() | 43 LayoutRubyText::~LayoutRubyText() |
44 { | 44 { |
45 } | 45 } |
46 | 46 |
47 bool LayoutRubyText::isChildAllowed(LayoutObject* child, const LayoutStyle&) con
st | 47 bool LayoutRubyText::isChildAllowed(LayoutObject* child, const ComputedStyle&) c
onst |
48 { | 48 { |
49 return child->isInline(); | 49 return child->isInline(); |
50 } | 50 } |
51 | 51 |
52 ETextAlign LayoutRubyText::textAlignmentForLine(bool endsWithSoftBreak) const | 52 ETextAlign LayoutRubyText::textAlignmentForLine(bool endsWithSoftBreak) const |
53 { | 53 { |
54 ETextAlign textAlign = style()->textAlign(); | 54 ETextAlign textAlign = style()->textAlign(); |
55 // FIXME: This check is bogus since user can set the initial value. | 55 // FIXME: This check is bogus since user can set the initial value. |
56 if (textAlign != LayoutStyle::initialTextAlign()) | 56 if (textAlign != ComputedStyle::initialTextAlign()) |
57 return LayoutBlockFlow::textAlignmentForLine(endsWithSoftBreak); | 57 return LayoutBlockFlow::textAlignmentForLine(endsWithSoftBreak); |
58 | 58 |
59 // The default behavior is to allow ruby text to expand if it is shorter tha
n the ruby base. | 59 // The default behavior is to allow ruby text to expand if it is shorter tha
n the ruby base. |
60 return JUSTIFY; | 60 return JUSTIFY; |
61 } | 61 } |
62 | 62 |
63 void LayoutRubyText::adjustInlineDirectionLineBounds(unsigned expansionOpportuni
tyCount, float& logicalLeft, float& logicalWidth) const | 63 void LayoutRubyText::adjustInlineDirectionLineBounds(unsigned expansionOpportuni
tyCount, float& logicalLeft, float& logicalWidth) const |
64 { | 64 { |
65 ETextAlign textAlign = style()->textAlign(); | 65 ETextAlign textAlign = style()->textAlign(); |
66 // FIXME: This check is bogus since user can set the initial value. | 66 // FIXME: This check is bogus since user can set the initial value. |
67 if (textAlign != LayoutStyle::initialTextAlign()) | 67 if (textAlign != ComputedStyle::initialTextAlign()) |
68 return LayoutBlockFlow::adjustInlineDirectionLineBounds(expansionOpportu
nityCount, logicalLeft, logicalWidth); | 68 return LayoutBlockFlow::adjustInlineDirectionLineBounds(expansionOpportu
nityCount, logicalLeft, logicalWidth); |
69 | 69 |
70 int maxPreferredLogicalWidth = this->maxPreferredLogicalWidth(); | 70 int maxPreferredLogicalWidth = this->maxPreferredLogicalWidth(); |
71 if (maxPreferredLogicalWidth >= logicalWidth) | 71 if (maxPreferredLogicalWidth >= logicalWidth) |
72 return; | 72 return; |
73 | 73 |
74 // Inset the ruby text by half the inter-ideograph expansion amount, but no
more than a full-width | 74 // Inset the ruby text by half the inter-ideograph expansion amount, but no
more than a full-width |
75 // ruby character on each side. | 75 // ruby character on each side. |
76 float inset = (logicalWidth - maxPreferredLogicalWidth) / (expansionOpportun
ityCount + 1); | 76 float inset = (logicalWidth - maxPreferredLogicalWidth) / (expansionOpportun
ityCount + 1); |
77 if (expansionOpportunityCount) | 77 if (expansionOpportunityCount) |
78 inset = std::min<float>(2 * style()->fontSize(), inset); | 78 inset = std::min<float>(2 * style()->fontSize(), inset); |
79 | 79 |
80 logicalLeft += inset / 2; | 80 logicalLeft += inset / 2; |
81 logicalWidth -= inset; | 81 logicalWidth -= inset; |
82 } | 82 } |
83 | 83 |
84 bool LayoutRubyText::avoidsFloats() const | 84 bool LayoutRubyText::avoidsFloats() const |
85 { | 85 { |
86 return true; | 86 return true; |
87 } | 87 } |
88 | 88 |
89 } // namespace blink | 89 } // namespace blink |
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