Changeset 199548 in webkit

Timestamp:

Apr 14, 2016 11:27:51 AM (8 years ago)

Author:

fred.wang@free.fr

Message:

RenderMathMLOperator: Add helper function to retrieve italic correction
​https://bugs.webkit.org/show_bug.cgi?id=156572

Reviewed by Darin Adler.

No new tests, the helper function will only be used in bug 153918.

• rendering/mathml/RenderMathMLOperator.cpp:

(WebCore::RenderMathMLOperator::italicCorrection): Return the italic correction from the MATH table if it's a large operator.

• rendering/mathml/RenderMathMLOperator.h: Declare italicCorrection.

Location:

trunk/Source/WebCore

Files:

• ChangeLog (modified) (1 diff)
• rendering/mathml/RenderMathMLOperator.cpp (modified) (1 diff)
• rendering/mathml/RenderMathMLOperator.h (modified) (1 diff)

trunk/Source/WebCore/ChangeLog

@@ +1 @@
+2016-04-14  Frederic Wang  <fred.wang@free.fr>
+
+        RenderMathMLOperator: Add helper function to retrieve italic correction
+        https://bugs.webkit.org/show_bug.cgi?id=156572
+
+        Reviewed by Darin Adler.
+
+        No new tests, the helper function will only be used in bug 153918.
+
+        * rendering/mathml/RenderMathMLOperator.cpp:
+        (WebCore::RenderMathMLOperator::italicCorrection): Return the italic correction from the MATH table if it's a large operator.
+        * rendering/mathml/RenderMathMLOperator.h: Declare italicCorrection.
+
 2016-04-14  Frederic Wang  <fwang@igalia.com>
 

trunk/Source/WebCore/rendering/mathml/RenderMathMLOperator.cpp

@@ -203 +203 @@
 }
 
+LayoutUnit RenderMathMLOperator::italicCorrection() const
+{
+    if (isLargeOperatorInDisplayStyle()) {
+        const auto& primaryFont = style().fontCascade().primaryFont();
+        if (auto* mathData = primaryFont.mathData()) {
+            StretchyData largeOperator = getDisplayStyleLargeOperator(m_textContent);
+            return mathData->getItalicCorrection(primaryFont, largeOperator.variant().glyph);
+        }
+    }
+    return 0;
+}
+
 void RenderMathMLOperator::stretchTo(LayoutUnit heightAboveBaseline, LayoutUnit depthBelowBaseline)
 {

trunk/Source/WebCore/rendering/mathml/RenderMathMLOperator.h

@@ -52 +52 @@
     bool isLargeOperatorInDisplayStyle() const { return !hasOperatorFlag(MathMLOperatorDictionary::Stretchy) && hasOperatorFlag(MathMLOperatorDictionary::LargeOp); }
     bool isVertical() const { return m_isVertical; }
+    LayoutUnit italicCorrection() const;
 
     void styleDidChange(StyleDifference, const RenderStyle* oldStyle) final;