WebCore/CSSFontFaceSource.h

   1 /*
   2  * Copyright (C) 2007, 2008 Apple 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,
  18  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  19  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
  20  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
  21  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  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 #ifndef CSSFontFaceSource_h
  27 #define CSSFontFaceSource_h
  28
  29 #include "AtomicString.h"
  30 #include "CachedResourceClient.h"
  31 #include "CachedResourceHandle.h"
  32 #include <wtf/HashMap.h>
  33
  34 #if ENABLE(SVG_FONTS)
  35 #include "SVGFontFaceElement.h"
  36 #endif
  37
  38 namespace WebCore {
  39
  40 class CachedFont;
  41 class CSSFontFace;
  42 class CSSFontSelector;
  43 class FontDescription;
  44 class SimpleFontData;
  45
  46 class CSSFontFaceSource : public CachedResourceClient {
  47 public:
  48     CSSFontFaceSource(const String&, CachedFont* = 0);
  49     virtual ~CSSFontFaceSource();
  50
  51     bool isLoaded() const;
  52     bool isValid() const;
  53
  54     const AtomicString& string() const { return m_string; }
  55
  56     void setFontFace(CSSFontFace* face) { m_face = face; }
  57
  58     virtual void fontLoaded(CachedFont*);
  59
  60     SimpleFontData* getFontData(const FontDescription&, bool syntheticBold, bool syntheticItalic, CSSFontSelector*);
  61
  62     void pruneTable();
  63
  64 #if ENABLE(SVG_FONTS)
  65     SVGFontFaceElement* svgFontFaceElement() const { return m_svgFontFaceElement; }
  66     void setSVGFontFaceElement(SVGFontFaceElement* element) { m_svgFontFaceElement = element; }
  67 #endif
  68
  69 private:
  70     AtomicString m_string; // URI for remote, built-in font name for local.
  71     CachedResourceHandle<CachedFont> m_font; // For remote fonts, a pointer to our cached resource.
  72     CSSFontFace* m_face; // Our owning font face.
  73     HashMap<unsigned, SimpleFontData*> m_fontDataTable; // The hash key is composed of size synthetic styles.
  74
  75 #if ENABLE(SVG_FONTS)
  76     SVGFontFaceElement* m_svgFontFaceElement;
  77     RefPtr<SVGFontElement> m_externalSVGFontElement;
  78 #endif
  79 };
  80
  81 }
  82
  83 #endif