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/markup-tags-and-attributes.h>
30 #include <dali-toolkit/internal/text/text-font-style.h>
40 const std::string FONT_PREFIX("font-");
41 const unsigned int FONT_PREFIX_LENGTH = 5u;
42 const unsigned int MIN_FONT_ATTRIBUTE_SIZE = 4u; ///< The minimum length of any of the possible 'weight', 'width' , 'slant' or 'size' values.
43 const unsigned int MAX_FONT_ATTRIBUTE_SIZE = 15u; ///< The maximum length of any of the possible 'weight', 'width' or 'slant' values.
44 const float PIXEL_FORMAT_64_FACTOR = 64.f; ///< 64.f is used to convert from point size to 26.6 pixel format.
47 void processFontAttributeValue(char value[], const Attribute& attribute)
49 // The StringToWeight() uses the Scripting::GetEnumeration() function which requires the input string to end with a '\0' char.
50 const Length length = attribute.valueLength > MAX_FONT_ATTRIBUTE_SIZE ? MAX_FONT_ATTRIBUTE_SIZE : attribute.valueLength;
51 memcpy(value, attribute.valueBuffer, length);
55 void ProcessFontFamily(const Attribute& attribute, FontDescriptionRun& fontRun)
57 fontRun.familyDefined = true;
58 fontRun.familyLength = attribute.valueLength;
59 fontRun.familyName = new char[fontRun.familyLength];
60 memcpy(fontRun.familyName, attribute.valueBuffer, fontRun.familyLength);
61 // The memory is freed when the font run is removed from the logical model.
64 void ProcessFontSize(const Attribute& attribute, FontDescriptionRun& fontRun)
66 // 64.f is used to convert from point size to 26.6 pixel format.
67 fontRun.size = static_cast<PointSize26Dot6>(ProcessFloatAttribute(attribute) * PIXEL_FORMAT_64_FACTOR);
68 fontRun.sizeDefined = true;
71 void ProcessFontWeight(const Attribute& attribute, FontDescriptionRun& fontRun)
73 fontRun.weightDefined = ProcessEnumerationAttribute<FontWeight>(attribute, MAX_FONT_ATTRIBUTE_SIZE, &StringToWeight, fontRun.weight);
76 void ProcessFontWidth(const Attribute& attribute, FontDescriptionRun& fontRun)
78 fontRun.widthDefined = ProcessEnumerationAttribute<FontWidth>(attribute, MAX_FONT_ATTRIBUTE_SIZE, &StringToWidth, fontRun.width);
81 void ProcessFontSlant(const Attribute& attribute, FontDescriptionRun& fontRun)
83 fontRun.slantDefined = ProcessEnumerationAttribute<FontSlant>(attribute, MAX_FONT_ATTRIBUTE_SIZE, &StringToSlant, fontRun.slant);
86 void ProcessFontTag(const Tag& tag, FontDescriptionRun& fontRun)
88 for(Vector<Attribute>::ConstIterator it = tag.attributes.Begin(),
89 endIt = tag.attributes.End();
93 const Attribute& attribute(*it);
95 if(TokenComparison(MARKUP::FONT_ATTRIBUTES::FAMILY, attribute.nameBuffer, attribute.nameLength))
97 ProcessFontFamily(attribute, fontRun);
99 else if(TokenComparison(MARKUP::FONT_ATTRIBUTES::SIZE, attribute.nameBuffer, attribute.nameLength))
101 ProcessFontSize(attribute, fontRun);
103 else if(TokenComparison(MARKUP::FONT_ATTRIBUTES::WEIGHT, attribute.nameBuffer, attribute.nameLength))
105 ProcessFontWeight(attribute, fontRun);
107 else if(TokenComparison(MARKUP::FONT_ATTRIBUTES::WIDTH, attribute.nameBuffer, attribute.nameLength))
109 ProcessFontWidth(attribute, fontRun);
111 else if(TokenComparison(MARKUP::FONT_ATTRIBUTES::SLANT, attribute.nameBuffer, attribute.nameLength))
113 ProcessFontSlant(attribute, fontRun);
120 } // namespace Toolkit