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      1 /*
      2  * Copyright (C) 2009 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 WebFontInfo_h
     32 #define WebFontInfo_h
     33 
     34 #include "../WebCString.h"
     35 #include "WebFontFamily.h"
     36 #include "WebFontRenderStyle.h"
     37 
     38 #include <string.h>
     39 #include <unistd.h>
     40 
     41 namespace blink {
     42 
     43 class WebFontInfo {
     44 public:
     45     // Set a global preference describing whether renderStyleForStrike() should
     46     // enable subpixel positioning or not. FontConfig doesn't currently provide
     47     // a parameter for controlling this.
     48     BLINK_EXPORT static void setSubpixelPositioning(bool);
     49 
     50     // Return a font family which provides a glyph for the Unicode code point
     51     // specified by character.
     52     //   character: a UTF-32 code point
     53     //   preferredLocale: preferred locale identifier for the |characters|
     54     //                    (e.g. "en", "ja", "zh-CN")
     55     //
     56     // Returns: the font family or an empty string if the request could not be satisfied.
     57     // Returns: the font family instance. The instance has an empty font name if the request could not be satisfied.
     58     BLINK_EXPORT static void familyForChar(const WebUChar32 character, const char* preferredLocale, WebFontFamily*);
     59 
     60     // Fill out the given WebFontRenderStyle with the user's preferences for
     61     // rendering the given font at the given size (in pixels).
     62     //   family: i.e. "Times New Roman"
     63     //   sizeAndStyle:
     64     //      3322222222221111111111
     65     //      10987654321098765432109876543210
     66     //     +--------------------------------+
     67     //     |..............Size............IB|
     68     //     +--------------------------------+
     69     //     I: italic flag
     70     //     B: bold flag
     71     BLINK_EXPORT static void renderStyleForStrike(const char* family, int sizeAndStyle, WebFontRenderStyle* result);
     72 };
     73 
     74 } // namespace blink
     75 
     76 #endif
     77