1 /* 2 * Copyright (C) 2010 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 are 6 * met: 7 * 8 * * Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * * Redistributions in binary form must reproduce the above 11 * copyright notice, this list of conditions and the following disclaimer 12 * in the documentation and/or other materials provided with the 13 * distribution. 14 * * Neither the name of Google Inc. nor the names of its 15 * contributors may be used to endorse or promote products derived from 16 * this software without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29 */ 30 31 #ifndef WebFontImpl_h 32 #define WebFontImpl_h 33 34 #include "Font.h" 35 #include "WebFont.h" 36 37 namespace WebCore { class FontDescription; } 38 39 namespace WebKit { 40 41 class WebFontImpl : public WebFont { 42 public: 43 WebFontImpl(const WebCore::FontDescription&, short letterSpacing, short wordSpacing); 44 45 virtual WebFontDescription fontDescription() const; 46 47 virtual int ascent() const; 48 virtual int descent() const; 49 virtual int height() const; 50 virtual int lineSpacing() const; 51 virtual float xHeight() const; 52 53 virtual void drawText(WebCanvas*, const WebTextRun&, const WebFloatPoint& leftBaseline, WebColor, 54 const WebRect& clip, bool canvasIsOpaque, int from = 0, int to = -1) const; 55 virtual int calculateWidth(const WebTextRun&) const; 56 virtual int offsetForPosition(const WebTextRun&, float position) const; 57 virtual WebFloatRect selectionRectForText(const WebTextRun&, const WebFloatPoint& leftBaseline, 58 int height, int from = 0, int to = -1) const; 59 60 private: 61 WebCore::Font m_font; 62 }; 63 64 } // namespace WebKit 65 66 #endif 67