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1 // Copyright 2015 The Chromium Authors. All rights reserved. | 1 // Copyright 2015 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #ifndef LineLayoutSVGInlineText_h | 5 #ifndef LineLayoutSVGInlineText_h |
6 #define LineLayoutSVGInlineText_h | 6 #define LineLayoutSVGInlineText_h |
7 | 7 |
8 #include "core/layout/api/LineLayoutText.h" | 8 #include "core/layout/api/LineLayoutText.h" |
9 #include "core/layout/svg/LayoutSVGInlineText.h" | 9 #include "core/layout/svg/LayoutSVGInlineText.h" |
10 | 10 |
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55 | 55 |
56 public: | 56 public: |
57 SVGInlineTextMetricsIterator() { reset(LineLayoutSVGInlineText()); } | 57 SVGInlineTextMetricsIterator() { reset(LineLayoutSVGInlineText()); } |
58 explicit SVGInlineTextMetricsIterator( | 58 explicit SVGInlineTextMetricsIterator( |
59 LineLayoutSVGInlineText textLineLayout) { | 59 LineLayoutSVGInlineText textLineLayout) { |
60 reset(textLineLayout); | 60 reset(textLineLayout); |
61 } | 61 } |
62 | 62 |
63 void advanceToTextStart(LineLayoutSVGInlineText textLineLayout, | 63 void advanceToTextStart(LineLayoutSVGInlineText textLineLayout, |
64 unsigned startCharacterOffset) { | 64 unsigned startCharacterOffset) { |
65 ASSERT(textLineLayout); | 65 DCHECK(textLineLayout); |
66 if (!m_textLineLayout || m_textLineLayout != textLineLayout) { | 66 if (!m_textLineLayout || m_textLineLayout != textLineLayout) { |
67 reset(textLineLayout); | 67 reset(textLineLayout); |
68 ASSERT(!metricsList().isEmpty()); | 68 DCHECK(!metricsList().isEmpty()); |
69 } | 69 } |
70 | 70 |
71 if (m_characterOffset == startCharacterOffset) | 71 if (m_characterOffset == startCharacterOffset) |
72 return; | 72 return; |
73 | 73 |
74 // TODO(fs): We could walk backwards through the metrics list in these | 74 // TODO(fs): We could walk backwards through the metrics list in these |
75 // cases. | 75 // cases. |
76 if (m_characterOffset > startCharacterOffset) | 76 if (m_characterOffset > startCharacterOffset) |
77 reset(textLineLayout); | 77 reset(textLineLayout); |
78 | 78 |
79 while (m_characterOffset < startCharacterOffset) | 79 while (m_characterOffset < startCharacterOffset) |
80 next(); | 80 next(); |
81 ASSERT(m_characterOffset == startCharacterOffset); | 81 DCHECK_EQ(m_characterOffset, startCharacterOffset); |
82 } | 82 } |
83 | 83 |
84 void next() { | 84 void next() { |
85 m_characterOffset += metrics().length(); | 85 m_characterOffset += metrics().length(); |
86 ASSERT(m_characterOffset <= m_textLineLayout.length()); | 86 DCHECK_LE(m_characterOffset, m_textLineLayout.length()); |
87 ASSERT(m_metricsListOffset < metricsList().size()); | 87 DCHECK_LT(m_metricsListOffset, metricsList().size()); |
88 ++m_metricsListOffset; | 88 ++m_metricsListOffset; |
89 } | 89 } |
90 | 90 |
91 const SVGTextMetrics& metrics() const { | 91 const SVGTextMetrics& metrics() const { |
92 ASSERT(m_textLineLayout && m_metricsListOffset < metricsList().size()); | 92 DCHECK(m_textLineLayout); |
| 93 DCHECK_LT(m_metricsListOffset, metricsList().size()); |
93 return metricsList()[m_metricsListOffset]; | 94 return metricsList()[m_metricsListOffset]; |
94 } | 95 } |
95 const Vector<SVGTextMetrics>& metricsList() const { | 96 const Vector<SVGTextMetrics>& metricsList() const { |
96 return m_textLineLayout.metricsList(); | 97 return m_textLineLayout.metricsList(); |
97 } | 98 } |
98 unsigned metricsListOffset() const { return m_metricsListOffset; } | 99 unsigned metricsListOffset() const { return m_metricsListOffset; } |
99 unsigned characterOffset() const { return m_characterOffset; } | 100 unsigned characterOffset() const { return m_characterOffset; } |
100 bool isAtEnd() const { return m_metricsListOffset == metricsList().size(); } | 101 bool isAtEnd() const { return m_metricsListOffset == metricsList().size(); } |
101 | 102 |
102 private: | 103 private: |
103 void reset(LineLayoutSVGInlineText textLineLayout) { | 104 void reset(LineLayoutSVGInlineText textLineLayout) { |
104 m_textLineLayout = textLineLayout; | 105 m_textLineLayout = textLineLayout; |
105 m_characterOffset = 0; | 106 m_characterOffset = 0; |
106 m_metricsListOffset = 0; | 107 m_metricsListOffset = 0; |
107 } | 108 } |
108 | 109 |
109 LineLayoutSVGInlineText m_textLineLayout; | 110 LineLayoutSVGInlineText m_textLineLayout; |
110 unsigned m_metricsListOffset; | 111 unsigned m_metricsListOffset; |
111 unsigned m_characterOffset; | 112 unsigned m_characterOffset; |
112 }; | 113 }; |
113 | 114 |
114 } // namespace blink | 115 } // namespace blink |
115 | 116 |
116 #endif // LineLayoutSVGInlineText_h | 117 #endif // LineLayoutSVGInlineText_h |
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