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 #include <dali-toolkit/internal/text/markup-tags-and-attributes.h>
  28
  29 namespace Dali
  30 {
  31 namespace Toolkit
  32 {
  33 namespace Text
  34 {
  35 void ProcessHorizontalAlignment(const Attribute& attribute, BoundedParagraphRun& boundedParagraphRun)
  36 {
  37   boundedParagraphRun.horizontalAlignmentDefined = HorizontalAlignmentTypeStringToTypeValue(attribute.valueBuffer,
  38                                                                                             attribute.valueLength,
  39                                                                                             boundedParagraphRun.horizontalAlignment);
  40 }
  41
  42 void ProcessRelativeLineHeight(const Attribute& attribute, BoundedParagraphRun& boundedParagraphRun)
  43 {
  44   boundedParagraphRun.relativeLineSize        = StringToFloat(attribute.valueBuffer);
  45   boundedParagraphRun.relativeLineSizeDefined = true;
  46 }
  47
  48 void ProcessAttributesOfParagraphTag(const Tag& tag, BoundedParagraphRun& boundedParagraphRun)
  49 {
  50   // By default the align attribute is not defined until it's parsed.
  51   boundedParagraphRun.horizontalAlignmentDefined = false;
  52
  53   for(Vector<Attribute>::ConstIterator it    = tag.attributes.Begin(),
  54                                        endIt = tag.attributes.End();
  55       it != endIt;
  56       ++it)
  57   {
  58     const Attribute& attribute(*it);
  59     if(TokenComparison(MARKUP::PARAGRAPH_ATTRIBUTES::ALIGN, attribute.nameBuffer, attribute.nameLength))
  60     {
  61       ProcessHorizontalAlignment(attribute, boundedParagraphRun);
  62     }
  63     else if(TokenComparison(MARKUP::PARAGRAPH_ATTRIBUTES::RELATIVE_LINE_HEIGHT, attribute.nameBuffer, attribute.nameLength))
  64     {
  65       ProcessRelativeLineHeight(attribute, boundedParagraphRun);
  66     }
  67   }
  68 }
  69 } // namespace Text
  70
  71 } // namespace Toolkit
  72
  73 } // namespace Dali