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      1 /*
      2  * Copyright (C) 2011 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 INC. AND ITS CONTRIBUTORS ``AS IS''
     14  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
     15  * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     16  * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
     17  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     18  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     19  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     20  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     21  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     22  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
     23  * THE POSSIBILITY OF SUCH DAMAGE.
     24  */
     25 
     26 #include "config.h"
     27 #include "platform/text/TextRun.h"
     28 
     29 namespace WebCore {
     30 
     31 struct ExpectedTextRunSize {
     32     const void* pointer;
     33     int integers[2];
     34     float float1;
     35     float float2;
     36     float float3;
     37     uint32_t bitfields : 10;
     38     unsigned anUnsigned;
     39     RefPtr<TextRun::RenderingContext> renderingContext;
     40 };
     41 
     42 COMPILE_ASSERT(sizeof(TextRun) == sizeof(ExpectedTextRunSize), TextRun_is_not_of_expected_size);
     43 
     44 bool TextRun::s_allowsRoundingHacks = false;
     45 
     46 void TextRun::setAllowsRoundingHacks(bool allowsRoundingHacks)
     47 {
     48     s_allowsRoundingHacks = allowsRoundingHacks;
     49 }
     50 
     51 void TextRun::setText(const String& string)
     52 {
     53     m_len = string.length();
     54     if (!m_len) {
     55         m_data.characters8 = 0;
     56         m_is8Bit = true;
     57         return;
     58     }
     59     m_is8Bit = string.is8Bit();
     60     if (m_is8Bit)
     61         m_data.characters8 = string.characters8();
     62     else
     63         m_data.characters16 = string.characters16();
     64 }
     65 
     66 bool TextRun::allowsRoundingHacks()
     67 {
     68     return s_allowsRoundingHacks;
     69 }
     70 
     71 }
     72