dali-toolkit/internal/text/markup-processor-paragraph.cpp

   1 /*
   2  * Copyright (c) 2022 Samsung Electronics Co., Ltd.
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License");
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at
   7  *
   8  * http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an "AS IS" BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  *
  16  */
  17
  18 // FILE HEADER
  19 #include <dali-toolkit/internal/text/markup-processor-paragraph.h>
  20
  21 // EXTERNAL INCLUDES
  22 #include <dali/public-api/common/dali-vector.h>
  23
  24 // INTERNAL INCLUDES
  25 #include <dali-toolkit/internal/text/bounded-paragraph-run.h>
  26 #include <dali-toolkit/internal/text/markup-processor-helper-functions.h>
  27
  28 namespace Dali
  29 {
  30 namespace Toolkit
  31 {
  32 namespace Text
  33 {
  34 namespace
  35 {
  36 const std::string XHTML_ALIGN_ATTRIBUTE("align");
  37 const std::string XHTML_RELATIVE_LINE_HEIGHT_ATTRIBUTE("rel-line-height");
  38 } // namespace
  39
  40 void ProcessHorizontalAlignment(const Attribute& attribute, BoundedParagraphRun& boundedParagraphRun)
  41 {
  42   boundedParagraphRun.horizontalAlignmentDefined = HorizontalAlignmentTypeStringToTypeValue(attribute.valueBuffer,
  43                                                                                             attribute.valueLength,
  44                                                                                             boundedParagraphRun.horizontalAlignment);
  45 }
  46
  47 void ProcessRelativeLineHeight(const Attribute& attribute, BoundedParagraphRun& boundedParagraphRun)
  48 {
  49   boundedParagraphRun.relativeLineSize        = StringToFloat(attribute.valueBuffer);
  50   boundedParagraphRun.relativeLineSizeDefined = true;
  51 }
  52
  53 void ProcessAttributesOfParagraphTag(const Tag& tag, BoundedParagraphRun& boundedParagraphRun)
  54 {
  55   // By default the align attribute is not defined until it's parsed.
  56   boundedParagraphRun.horizontalAlignmentDefined = false;
  57
  58   for(Vector<Attribute>::ConstIterator it    = tag.attributes.Begin(),
  59                                        endIt = tag.attributes.End();
  60       it != endIt;
  61       ++it)
  62   {
  63     const Attribute& attribute(*it);
  64     if(TokenComparison(XHTML_ALIGN_ATTRIBUTE, attribute.nameBuffer, attribute.nameLength))
  65     {
  66       ProcessHorizontalAlignment(attribute, boundedParagraphRun);
  67     }
  68     else if(TokenComparison(XHTML_RELATIVE_LINE_HEIGHT_ATTRIBUTE, attribute.nameBuffer, attribute.nameLength))
  69     {
  70       ProcessRelativeLineHeight(attribute, boundedParagraphRun);
  71     }
  72   }
  73 }
  74 } // namespace Text
  75
  76 } // namespace Toolkit
  77
  78 } // namespace Dali