Font metrics, version 1

Source/core/html/TextMetrics.h

 /*
  * Copyright (C) 2008 Apple Inc. All Rights Reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 21 matching lines @@
 
 namespace WebCore {
 
 class TextMetrics : public RefCounted<TextMetrics>, public ScriptWrappable {
 public:
     static PassRefPtr<TextMetrics> create() { return adoptRef(new TextMetrics); }
 
     float width() const { return m_width; }
     void setWidth(float w) { m_width = w; }
 
+    float actualBoundingBoxLeft() const { return m_actualBoundingBoxLeft; }

[eseidel, 2014/01/31 22:03:31]

So strange.  Don't we have a more sophisitcated object to return instead of
having 4 versions of the same method just for left right bottom top?

+    void setActualBoundingBoxLeft(float abbl) { m_actualBoundingBoxLeft = abbl; }
+
+    float actualBoundingBoxRight() const { return m_actualBoundingBoxRight; }
+    void setActualBoundingBoxRight(float abbr) { m_actualBoundingBoxRight = abbr; }
+
+    float fontBoundingBoxAscent() const { return m_fontBoundingBoxAscent; }
+    void setFontBoundingBoxAscent(float fbba) { m_fontBoundingBoxAscent = fbba; }
+
+    float fontBoundingBoxDescent() const { return m_fontBoundingBoxDescent; }
+    void setFontBoundingBoxDescent(float fbbd) { m_fontBoundingBoxDescent = fbbd; }
+
+    float actualBoundingBoxAscent() const { return m_actualBoundingBoxAscent; }
+    void setActualBoundingBoxAscent(float abba) { m_actualBoundingBoxAscent = abba; }
+
+    float actualBoundingBoxDescent() const { return m_actualBoundingBoxDescent; }
+    void setActualBoundingBoxDescent(float abbd) { m_actualBoundingBoxDescent = abbd; }
+
+    float emHeightAscent() const { return m_emHeightAscent; }
+    void setEmHeightAscent(float eha) { m_emHeightAscent = eha; }
+
+    float emHeightDescent() const { return m_emHeightDescent; }
+    void setEmHeightDescent(float ehd) { m_emHeightDescent = ehd; }
+
+    float hangingBaseline() const { return m_hangingBaseline; }
+    void setHangingBaseline(float hb) { m_hangingBaseline = hb; }
+
+    float alphabeticBaseline() const { return m_alphabeticBaseline; }
+    void setAlphabeticBaseline(float ab) { m_alphabeticBaseline = ab; }
+
+    float ideographicBaseline() const { return m_ideographicBaseline; }
+    void setIdeographicBaseline(float ib) { m_ideographicBaseline = ib; }
+
 private:
     TextMetrics()
         : m_width(0)
+        , m_actualBoundingBoxLeft(0)
+        , m_actualBoundingBoxRight(0)
+        , m_fontBoundingBoxAscent(0)
+        , m_fontBoundingBoxDescent(0)
+        , m_actualBoundingBoxAscent(0)
+        , m_actualBoundingBoxDescent(0)
+        , m_emHeightAscent(0)
+        , m_emHeightDescent(0)
+        , m_hangingBaseline(0)
+        , m_alphabeticBaseline(0)
+        , m_ideographicBaseline(0)
     {
         ScriptWrappable::init(this);
     }
 
+    // x-direction
     float m_width;
+    float m_actualBoundingBoxLeft;
+    float m_actualBoundingBoxRight;
+
+    // y-direction
+    float m_fontBoundingBoxAscent;
+    float m_fontBoundingBoxDescent;
+    float m_actualBoundingBoxAscent;
+    float m_actualBoundingBoxDescent;
+    float m_emHeightAscent;
+    float m_emHeightDescent;
+    float m_hangingBaseline;
+    float m_alphabeticBaseline;
+    float m_ideographicBaseline;
 };
 
 } // namespace WebCore
 
 #endif // TextMetrics_h