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33 #include "platform/LayoutUnit.h"
40 class RenderBlockFlow;
42 enum IndentTextOrNot { DoNotIndentText, IndentText };
43 enum WhitespaceTreatment { ExcludeWhitespace, IncludeWhitespace };
47 LineWidth(RenderBlockFlow&, bool isFirstLine, IndentTextOrNot shouldIndentText);
49 bool fitsOnLine() const { return currentWidth() <= (m_availableWidth + LayoutUnit::epsilon()); }
50 bool fitsOnLine(float extra) const { return currentWidth() + extra <= (m_availableWidth + LayoutUnit::epsilon()); }
51 bool fitsOnLine(float extra, WhitespaceTreatment whitespaceTreatment) const
53 return currentWidth() - (whitespaceTreatment == ExcludeWhitespace ? trailingWhitespaceWidth() : 0) + extra <= (m_availableWidth + LayoutUnit::epsilon());
56 float currentWidth() const { return m_committedWidth + m_uncommittedWidth; }
57 // FIXME: We should eventually replace these three functions by ones that work on a higher abstraction.
58 float uncommittedWidth() const { return m_uncommittedWidth; }
59 float committedWidth() const { return m_committedWidth; }
60 float availableWidth() const { return m_availableWidth; }
61 float trailingWhitespaceWidth() const { return m_trailingWhitespaceWidth; }
63 void updateAvailableWidth(LayoutUnit minimumHeight = 0);
64 void shrinkAvailableWidthForNewFloatIfNeeded(FloatingObject*);
65 void addUncommittedWidth(float delta) { m_uncommittedWidth += delta; }
67 void applyOverhang(RenderRubyRun*, RenderObject* startRenderer, RenderObject* endRenderer);
68 void fitBelowFloats(bool isFirstLine = false);
69 void setTrailingWhitespaceWidth(float width) { m_trailingWhitespaceWidth = width; }
71 bool shouldIndentText() const { return m_shouldIndentText == IndentText; }
74 void computeAvailableWidthFromLeftAndRight();
75 void updateLineDimension(LayoutUnit newLineTop, LayoutUnit newLineWidth, const float& newLineLeft, const float& newLineRight);
76 void wrapNextToShapeOutside(bool isFirstLine);
78 RenderBlockFlow& m_block;
79 float m_uncommittedWidth;
80 float m_committedWidth;
81 float m_overhangWidth; // The amount by which |m_availableWidth| has been inflated to account for possible contraction due to ruby overhang.
82 float m_trailingWhitespaceWidth;
85 float m_availableWidth;
87 IndentTextOrNot m_shouldIndentText;