third_party/WebKit/Source/core/layout/LayoutThemeFontProvider.cpp

   1 /*
   2  * Copyright (C) 2012 Google Inc.  All rights reserved.
   3  *
   4  * Redistribution and use in source and binary forms, with or without
   5  * modification, are permitted provided that the following conditions
   6  * are met:
   7  * 1. Redistributions of source code must retain the above copyright
   8  *    notice, this list of conditions and the following disclaimer.
   9  * 2. Redistributions in binary form must reproduce the above copyright
  10  *    notice, this list of conditions and the following disclaimer in the
  11  *    documentation and/or other materials provided with the distribution.
  12  *
  13  * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
  14  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  15  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  16  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
  17  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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  19  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
  20  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
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  22  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  23  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  24  */
  25
  26 #include "config.h"
  27 #include "core/layout/LayoutThemeFontProvider.h"
  28
  29 #include "wtf/StdLibExtras.h"
  30 #include "wtf/text/WTFString.h"
  31
  32 namespace blink {
  33
  34 // The default variable-width font size. We use this as the default font
  35 // size for the "system font", and as a base size (which we then shrink) for
  36 // form control fonts.
  37 // static
  38 float LayoutThemeFontProvider::s_defaultFontSize = 16.0;
  39
  40 // We aim to match IE here.
  41 // -IE uses a font based on the encoding as the default font for form controls.
  42 // -Gecko uses MS Shell Dlg (actually calls GetStockObject(DEFAULT_GUI_FONT),
  43 // which returns MS Shell Dlg)
  44 // -Safari uses Lucida Grande.
  45 //
  46 // FIXME: The only case where we know we don't match IE is for ANSI encodings.
  47 // IE uses MS Shell Dlg there, which we render incorrectly at certain pixel
  48 // sizes (e.g. 15px). So, for now we just use Arial.
  49 const AtomicString& LayoutThemeFontProvider::defaultGUIFont()
  50 {
  51     DEFINE_STATIC_LOCAL(const AtomicString, fontFace, ("Arial", AtomicString::ConstructFromLiteral));
  52     return fontFace;
  53 }
  54
  55 } // namespace blink