2 * Copyright (c) 2021 Samsung Electronics Co., Ltd.
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
8 * http://www.apache.org/licenses/LICENSE-2.0
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.
19 #include <dali-toolkit/internal/text/markup-processor-font.h>
22 #include <dali/public-api/common/dali-vector.h>
26 #include <dali-toolkit/internal/text/font-description-run.h>
27 #include <dali-toolkit/internal/text/markup-processor-attribute-helper-functions.h>
28 #include <dali-toolkit/internal/text/markup-processor-helper-functions.h>
29 #include <dali-toolkit/internal/text/text-font-style.h>
39 const std::string XHTML_FAMILY_ATTRIBUTE("family");
40 const std::string XHTML_SIZE_ATTRIBUTE("size");
41 const std::string XHTML_WEIGHT_ATTRIBUTE("weight");
42 const std::string XHTML_WIDTH_ATTRIBUTE("width");
43 const std::string XHTML_SLANT_ATTRIBUTE("slant");
45 const std::string FONT_PREFIX("font-");
46 const unsigned int FONT_PREFIX_LENGTH = 5u;
47 const unsigned int MIN_FONT_ATTRIBUTE_SIZE = 4u; ///< The minimum length of any of the possible 'weight', 'width' , 'slant' or 'size' values.
48 const unsigned int MAX_FONT_ATTRIBUTE_SIZE = 15u; ///< The maximum length of any of the possible 'weight', 'width' or 'slant' values.
49 const float PIXEL_FORMAT_64_FACTOR = 64.f; ///< 64.f is used to convert from point size to 26.6 pixel format.
52 void processFontAttributeValue(char value[], const Attribute& attribute)
54 // The StringToWeight() uses the Scripting::GetEnumeration() function which requires the input string to end with a '\0' char.
55 const Length length = attribute.valueLength > MAX_FONT_ATTRIBUTE_SIZE ? MAX_FONT_ATTRIBUTE_SIZE : attribute.valueLength;
56 memcpy(value, attribute.valueBuffer, length);
60 void ProcessFontFamily(const Attribute& attribute, FontDescriptionRun& fontRun)
62 fontRun.familyDefined = true;
63 fontRun.familyLength = attribute.valueLength;
64 fontRun.familyName = new char[fontRun.familyLength];
65 memcpy(fontRun.familyName, attribute.valueBuffer, fontRun.familyLength);
66 // The memory is freed when the font run is removed from the logical model.
69 void ProcessFontSize(const Attribute& attribute, FontDescriptionRun& fontRun)
71 // 64.f is used to convert from point size to 26.6 pixel format.
72 fontRun.size = static_cast<PointSize26Dot6>(ProcessFloatAttribute(attribute) * PIXEL_FORMAT_64_FACTOR);
73 fontRun.sizeDefined = true;
76 void ProcessFontWeight(const Attribute& attribute, FontDescriptionRun& fontRun)
78 fontRun.weightDefined = ProcessEnumerationAttribute<FontWeight>(attribute, MAX_FONT_ATTRIBUTE_SIZE, &StringToWeight, fontRun.weight);
81 void ProcessFontWidth(const Attribute& attribute, FontDescriptionRun& fontRun)
83 fontRun.widthDefined = ProcessEnumerationAttribute<FontWidth>(attribute, MAX_FONT_ATTRIBUTE_SIZE, &StringToWidth, fontRun.width);
86 void ProcessFontSlant(const Attribute& attribute, FontDescriptionRun& fontRun)
88 fontRun.slantDefined = ProcessEnumerationAttribute<FontSlant>(attribute, MAX_FONT_ATTRIBUTE_SIZE, &StringToSlant, fontRun.slant);
91 void ProcessFontTag(const Tag& tag, FontDescriptionRun& fontRun)
93 for(Vector<Attribute>::ConstIterator it = tag.attributes.Begin(),
94 endIt = tag.attributes.End();
98 const Attribute& attribute(*it);
100 if(TokenComparison(XHTML_FAMILY_ATTRIBUTE, attribute.nameBuffer, attribute.nameLength))
102 ProcessFontFamily(attribute, fontRun);
104 else if(TokenComparison(XHTML_SIZE_ATTRIBUTE, attribute.nameBuffer, attribute.nameLength))
106 ProcessFontSize(attribute, fontRun);
108 else if(TokenComparison(XHTML_WEIGHT_ATTRIBUTE, attribute.nameBuffer, attribute.nameLength))
110 ProcessFontWeight(attribute, fontRun);
112 else if(TokenComparison(XHTML_WIDTH_ATTRIBUTE, attribute.nameBuffer, attribute.nameLength))
114 ProcessFontWidth(attribute, fontRun);
116 else if(TokenComparison(XHTML_SLANT_ATTRIBUTE, attribute.nameBuffer, attribute.nameLength))
118 ProcessFontSlant(attribute, fontRun);
125 } // namespace Toolkit