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1
16
17 package org.apache.poi.hssf.record;
18
19 import org.apache.poi.hssf.usermodel.HSSFRichTextString;
20 import org.apache.poi.util.StringUtil;
21 import org.apache.poi.util.LittleEndian;
22 import org.apache.poi.util.HexDump;
23 import java.io.UnsupportedEncodingException  ;
24
25 public class TextObjectRecord
26 extends TextObjectBaseRecord
27 {
28 HSSFRichTextString str = new HSSFRichTextString( "" );
29 int continueRecordCount = 0;
31 public TextObjectRecord()
32 {
33 }
34
35 public TextObjectRecord( short id, short size, byte[] data )
36 {
37 super( id, size, data );
38 }
39
40 public TextObjectRecord( short id, short size, byte[] data, int offset )
41 {
42 super( id, size, data, offset );
43 }
44
45 public int getRecordSize()
46 {
47 int continue1Size = 0;
48 int continue2Size = 0;
49 if (str.length() != 0)
50 {
51 continue1Size = str.length() * 2 + 1 + 4;
52 continue2Size = (str.numFormattingRuns() + 1) * 8 + 4;
53 }
54 return super.getRecordSize() + continue1Size + continue2Size;
55 }
56
57 public int serialize( int offset, byte[] data )
58 {
59 HSSFRichTextString temp = str;
61 str = new HSSFRichTextString("");
62 int bytesWritten1 = super.serialize( offset, data );
63 str = temp;
64
65 int pos = offset + bytesWritten1;
66 if ( str.toString().equals( "" ) == false )
67 {
68 ContinueRecord c1 = createContinue1();
69 ContinueRecord c2 = createContinue2();
70 int bytesWritten2 = c1.serialize( pos, data );
71 pos += bytesWritten2;
72 int bytesWritten3 = c2.serialize( pos, data );
73 pos += bytesWritten3;
74
75 int size = bytesWritten1 + bytesWritten2 + bytesWritten3;
76 if ( size != getRecordSize() )
77 throw new RecordFormatException(size + " bytes written but getRecordSize() reports " + getRecordSize());
78 return size;
79 }
80 if ( bytesWritten1 != getRecordSize() )
81 throw new RecordFormatException(bytesWritten1 + " bytes written but getRecordSize() reports " + getRecordSize());
82 return bytesWritten1;
83 }
84
85 private ContinueRecord createContinue1()
86 {
87 ContinueRecord c1 = new ContinueRecord();
88 byte[] c1Data = new byte[str.length() * 2 + 1];
89 try
90 {
91 c1Data[0] = 1;
92 System.arraycopy( str.toString().getBytes( "UTF-16LE" ), 0, c1Data, 1, str.length() * 2 );
93 }
94 catch ( UnsupportedEncodingException e )
95 {
96 throw new RuntimeException ( e.getMessage() );
97 }
98 c1.setData( c1Data );
99 return c1;
100 }
101
102 private ContinueRecord createContinue2()
103 {
104 ContinueRecord c2 = new ContinueRecord();
105 byte[] c2Data = new byte[str.numFormattingRuns() * 8 + 8];
106 int pos = 0;
107 for ( int i = 0; i < str.numFormattingRuns(); i++ )
108 {
109 LittleEndian.putShort( c2Data, pos, (short) str.getIndexOfFormattingRun( i ) );
110 pos += 2;
111 LittleEndian.putShort( c2Data, pos, str.getFontOfFormattingRun( i ) == str.NO_FONT ? 0 : str.getFontOfFormattingRun( i ) );
112 pos += 2;
113 pos += 4; }
115 LittleEndian.putShort( c2Data, pos, (short) str.length() );
116 pos += 2;
117 LittleEndian.putShort( c2Data, pos, (short) 0 );
118 pos += 2;
119 pos += 4;
121 c2.setData( c2Data );
122
123 return c2;
124 }
125
126 public void processContinueRecord( byte[] data )
127 {
128 if ( continueRecordCount == 0 )
129 processRawString( data );
130 else
131 processFontRuns( data );
132 continueRecordCount++;
133 }
134
135 private void processFontRuns( byte[] data )
136 {
137 int pos = 0;
138 do
139 {
140 short index = LittleEndian.getShort( data, pos );
141 pos += 2;
142 short iFont = LittleEndian.getShort( data, pos );
143 pos += 2;
144 pos += 4;
146 if ( index >= str.length() )
147 break;
148 str.applyFont( index, str.length(), iFont );
149 }
150 while ( true );
151 }
152
153 private void processRawString( byte[] data )
154 {
155 String s;
156 int pos = 0;
157 byte compressByte = data[pos++];
158 boolean isCompressed = compressByte == 0;
159 try
160 {
161 if ( isCompressed )
162 {
163 s = new String ( data, pos, getTextLength(), StringUtil.getPreferredEncoding() );
164 }
165 else
166 {
167 s = new String ( data, pos, getTextLength() * 2, "UTF-16LE" );
168 }
169 }
170 catch ( UnsupportedEncodingException e )
171 {
172 throw new RuntimeException ( e.getMessage() );
173 }
174 str = new HSSFRichTextString( s );
175 }
176
177 public HSSFRichTextString getStr()
178 {
179 return str;
180 }
181
182 public void setStr( HSSFRichTextString str )
183 {
184 this.str = str;
185 }
186
187 public String toString()
188 {
189 StringBuffer buffer = new StringBuffer ();
190
191 buffer.append( "[TXO]\n" );
192 buffer.append( " .options = " )
193 .append( "0x" ).append( HexDump.toHex( getOptions() ) )
194 .append( " (" ).append( getOptions() ).append( " )" );
195 buffer.append( System.getProperty( "line.separator" ) );
196 buffer.append( " .reserved1 = " ).append( isReserved1() ).append( '\n' );
197 buffer.append( " .HorizontalTextAlignment = " ).append( getHorizontalTextAlignment() ).append( '\n' );
198 buffer.append( " .VerticalTextAlignment = " ).append( getVerticalTextAlignment() ).append( '\n' );
199 buffer.append( " .reserved2 = " ).append( getReserved2() ).append( '\n' );
200 buffer.append( " .textLocked = " ).append( isTextLocked() ).append( '\n' );
201 buffer.append( " .reserved3 = " ).append( getReserved3() ).append( '\n' );
202 buffer.append( " .textOrientation = " )
203 .append( "0x" ).append( HexDump.toHex( getTextOrientation() ) )
204 .append( " (" ).append( getTextOrientation() ).append( " )" );
205 buffer.append( System.getProperty( "line.separator" ) );
206 buffer.append( " .reserved4 = " )
207 .append( "0x" ).append( HexDump.toHex( getReserved4() ) )
208 .append( " (" ).append( getReserved4() ).append( " )" );
209 buffer.append( System.getProperty( "line.separator" ) );
210 buffer.append( " .reserved5 = " )
211 .append( "0x" ).append( HexDump.toHex( getReserved5() ) )
212 .append( " (" ).append( getReserved5() ).append( " )" );
213 buffer.append( System.getProperty( "line.separator" ) );
214 buffer.append( " .reserved6 = " )
215 .append( "0x" ).append( HexDump.toHex( getReserved6() ) )
216 .append( " (" ).append( getReserved6() ).append( " )" );
217 buffer.append( System.getProperty( "line.separator" ) );
218 buffer.append( " .textLength = " )
219 .append( "0x" ).append( HexDump.toHex( getTextLength() ) )
220 .append( " (" ).append( getTextLength() ).append( " )" );
221 buffer.append( System.getProperty( "line.separator" ) );
222 buffer.append( " .reserved7 = " )
223 .append( "0x" ).append( HexDump.toHex( getReserved7() ) )
224 .append( " (" ).append( getReserved7() ).append( " )" );
225 buffer.append( System.getProperty( "line.separator" ) );
226
227 buffer.append( " .string = " ).append(str).append('\n');
228
229 buffer.append( "[/TXO]\n" );
230 return buffer.toString();
231 }
232 }
233 |
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