1 /**************************************************************
2 *
3 * Licensed to the Apache Software Foundation (ASF) under one
4 * or more contributor license agreements. See the NOTICE file
5 * distributed with this work for additional information
6 * regarding copyright ownership. The ASF licenses this file
7 * to you under the Apache License, Version 2.0 (the
8 * "License"); you may not use this file except in compliance
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11 * http://www.apache.org/licenses/LICENSE-2.0
12 *
13 * Unless required by applicable law or agreed to in writing,
14 * software distributed under the License is distributed on an
15 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
16 * KIND, either express or implied. See the License for the
17 * specific language governing permissions and limitations
18 * under the License.
19 *
20 *************************************************************/
21
22
23
24 #include "oox/vml/vmltextboxcontext.hxx"
25
26 namespace oox {
27 namespace vml {
28
29 // ============================================================================
30
31 using ::oox::core::ContextHandler2;
32 using ::oox::core::ContextHandler2Helper;
33 using ::oox::core::ContextHandlerRef;
34 using ::rtl::OUString;
35
36 // ============================================================================
37
TextPortionContext(ContextHandler2Helper & rParent,TextBox & rTextBox,const TextFontModel & rParentFont,sal_Int32 nElement,const AttributeList & rAttribs)38 TextPortionContext::TextPortionContext( ContextHandler2Helper& rParent,
39 TextBox& rTextBox, const TextFontModel& rParentFont,
40 sal_Int32 nElement, const AttributeList& rAttribs ) :
41 ContextHandler2( rParent ),
42 mrTextBox( rTextBox ),
43 maFont( rParentFont ),
44 mnInitialPortions( rTextBox.getPortionCount() )
45 {
46 switch( nElement )
47 {
48 case XML_font:
49 maFont.moName = rAttribs.getXString( XML_face );
50 maFont.moColor = rAttribs.getXString( XML_color );
51 maFont.monSize = rAttribs.getInteger( XML_size );
52 break;
53 case XML_u:
54 OSL_ENSURE( !maFont.monUnderline, "TextPortionContext::TextPortionContext - nested <u> elements" );
55 maFont.monUnderline = (rAttribs.getToken( XML_class, XML_TOKEN_INVALID ) == XML_font4) ? XML_double : XML_single;
56 break;
57 case XML_sub:
58 case XML_sup:
59 OSL_ENSURE( !maFont.monEscapement, "TextPortionContext::TextPortionContext - nested <sub> or <sup> elements" );
60 maFont.monEscapement = nElement;
61 break;
62 case XML_b:
63 OSL_ENSURE( !maFont.mobBold, "TextPortionContext::TextPortionContext - nested <b> elements" );
64 maFont.mobBold = true;
65 break;
66 case XML_i:
67 OSL_ENSURE( !maFont.mobItalic, "TextPortionContext::TextPortionContext - nested <i> elements" );
68 maFont.mobItalic = true;
69 break;
70 case XML_s:
71 OSL_ENSURE( !maFont.mobStrikeout, "TextPortionContext::TextPortionContext - nested <s> elements" );
72 maFont.mobStrikeout = true;
73 break;
74 case XML_span:
75 break;
76 default:
77 OSL_ENSURE( false, "TextPortionContext::TextPortionContext - unknown element" );
78 }
79 }
80
onCreateContext(sal_Int32 nElement,const AttributeList & rAttribs)81 ContextHandlerRef TextPortionContext::onCreateContext( sal_Int32 nElement, const AttributeList& rAttribs )
82 {
83 OSL_ENSURE( nElement != XML_font, "TextPortionContext::onCreateContext - nested <font> elements" );
84 return new TextPortionContext( *this, mrTextBox, maFont, nElement, rAttribs );
85 }
86
onCharacters(const OUString & rChars)87 void TextPortionContext::onCharacters( const OUString& rChars )
88 {
89 switch( getCurrentElement() )
90 {
91 case XML_span:
92 // replace all NBSP characters with SP
93 mrTextBox.appendPortion( maFont, rChars.replace( 0xA0, ' ' ) );
94 break;
95 default:
96 mrTextBox.appendPortion( maFont, rChars );
97 }
98 }
99
onEndElement()100 void TextPortionContext::onEndElement()
101 {
102 /* A child element without own child elements may contain a single space
103 character, for example:
104
105 <div>
106 <font><i>abc</i></font>
107 <font> </font>
108 <font><b>def</b></font>
109 </div>
110
111 represents the italic text 'abc', an unformatted space character, and
112 the bold text 'def'. Unfortunately, the XML parser skips the space
113 character without issuing a 'characters' event. The class member
114 'mnInitialPortions' contains the number of text portions existing when
115 this context has been constructed. If no text has been added in the
116 meantime, the space character has to be added manually.
117 */
118 if( mrTextBox.getPortionCount() == mnInitialPortions )
119 mrTextBox.appendPortion( maFont, OUString( sal_Unicode( ' ' ) ) );
120 }
121
122 // ============================================================================
123
TextBoxContext(ContextHandler2Helper & rParent,TextBox & rTextBox,const AttributeList &)124 TextBoxContext::TextBoxContext( ContextHandler2Helper& rParent, TextBox& rTextBox, const AttributeList& /*rAttribs*/ ) :
125 ContextHandler2( rParent ),
126 mrTextBox( rTextBox )
127 {
128 }
129
onCreateContext(sal_Int32 nElement,const AttributeList & rAttribs)130 ContextHandlerRef TextBoxContext::onCreateContext( sal_Int32 nElement, const AttributeList& rAttribs )
131 {
132 switch( getCurrentElement() )
133 {
134 case VML_TOKEN( textbox ):
135 if( nElement == XML_div ) return this;
136 break;
137 case XML_div:
138 if( nElement == XML_font ) return new TextPortionContext( *this, mrTextBox, TextFontModel(), nElement, rAttribs );
139 break;
140 }
141 return 0;
142 }
143
144 // ============================================================================
145
146 } // namespace vml
147 } // namespace oox
148