dali-toolkit/internal/text/markup-processor-underline.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-underline.h>
  20
  21 // EXTERNAL INCLUDES
  22 #include <dali/public-api/common/dali-vector.h>
  23
  24 // INTERNAL INCLUDES
  25 #include <dali-toolkit/internal/text/markup-processor-attribute-helper-functions.h>
  26 #include <dali-toolkit/internal/text/markup-processor-helper-functions.h>
  27 #include <dali-toolkit/internal/text/text-effects-style.h>
  28 #include <dali-toolkit/internal/text/underlined-character-run.h>
  29
  30 namespace Dali
  31 {
  32 namespace Toolkit
  33 {
  34 namespace Text
  35 {
  36 namespace
  37 {
  38 const std::string XHTML_COLOR_ATTRIBUTE("color");
  39 const std::string XHTML_HEIGHT_ATTRIBUTE("height");
  40 const std::string XHTML_TYPE_ATTRIBUTE("type");
  41 const std::string XHTML_DASH_GAP_ATTRIBUTE("dash-gap");
  42 const std::string XHTML_DASH_WIDTH_ATTRIBUTE("dash-width");
  43
  44 const unsigned int MAX_TYPE_ATTRIBUTE_SIZE = 7u; ///< The maximum length of any of the possible 'type' values.
  45
  46 } // namespace
  47
  48 void ProcessTypeAttribute(const Attribute& attribute, UnderlinedCharacterRun& underlinedCharacterRun)
  49 {
  50   underlinedCharacterRun.properties.typeDefined = ProcessEnumerationAttribute<Text::Underline::Type>(attribute,
  51                                                                                                      MAX_TYPE_ATTRIBUTE_SIZE,
  52                                                                                                      &StringToUnderlineType,
  53                                                                                                      underlinedCharacterRun.properties.type);
  54 }
  55
  56 void ProcessDashGapAttribute(const Attribute& attribute, UnderlinedCharacterRun& underlinedCharacterRun)
  57 {
  58   underlinedCharacterRun.properties.dashGap        = ProcessFloatAttribute(attribute);
  59   underlinedCharacterRun.properties.dashGapDefined = true;
  60 }
  61
  62 void ProcessDashWidthAttribute(const Attribute& attribute, UnderlinedCharacterRun& underlinedCharacterRun)
  63 {
  64   underlinedCharacterRun.properties.dashWidth        = ProcessFloatAttribute(attribute);
  65   underlinedCharacterRun.properties.dashWidthDefined = true;
  66 }
  67 void ProcessHeightAttribute(const Attribute& attribute, UnderlinedCharacterRun& underlinedCharacterRun)
  68 {
  69   underlinedCharacterRun.properties.height        = ProcessFloatAttribute(attribute);
  70   underlinedCharacterRun.properties.heightDefined = true;
  71 }
  72
  73 void ProcessColorAttribute(const Attribute& attribute, UnderlinedCharacterRun& underlinedCharacterRun)
  74 {
  75   ColorStringToVector4(attribute.valueBuffer, attribute.valueLength, underlinedCharacterRun.properties.color);
  76   underlinedCharacterRun.properties.colorDefined = true;
  77 }
  78
  79 void ProcessUnderlineTag(const Tag& tag, UnderlinedCharacterRun& underlinedCharacterRun)
  80 {
  81   for(Vector<Attribute>::ConstIterator it    = tag.attributes.Begin(),
  82                                        endIt = tag.attributes.End();
  83       it != endIt;
  84       ++it)
  85   {
  86     const Attribute& attribute(*it);
  87
  88     if(TokenComparison(XHTML_COLOR_ATTRIBUTE, attribute.nameBuffer, attribute.nameLength))
  89     {
  90       ProcessColorAttribute(attribute, underlinedCharacterRun);
  91     }
  92     else if(TokenComparison(XHTML_HEIGHT_ATTRIBUTE, attribute.nameBuffer, attribute.nameLength))
  93     {
  94       ProcessHeightAttribute(attribute, underlinedCharacterRun);
  95     }
  96     else if(TokenComparison(XHTML_TYPE_ATTRIBUTE, attribute.nameBuffer, attribute.nameLength))
  97     {
  98       ProcessTypeAttribute(attribute, underlinedCharacterRun);
  99     }
 100     else if(TokenComparison(XHTML_DASH_GAP_ATTRIBUTE, attribute.nameBuffer, attribute.nameLength))
 101     {
 102       ProcessDashGapAttribute(attribute, underlinedCharacterRun);
 103     }
 104     else if(TokenComparison(XHTML_DASH_WIDTH_ATTRIBUTE, attribute.nameBuffer, attribute.nameLength))
 105     {
 106       ProcessDashWidthAttribute(attribute, underlinedCharacterRun);
 107     }
 108   }
 109 }
 110
 111 } // namespace Text
 112
 113 } // namespace Toolkit
 114
 115 } // namespace Dali