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NCB: Updated documentation on StyleTextPropAtom

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git-svn-id: https://svn.apache.org/repos/asf/jakarta/poi/trunk@353783 13f79535-47bb-0310-9956-ffa450edef68
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Nick Burch 2005-09-04 20:09:11 +00:00
parent 66eba605c6
commit 08276ffe43
1 changed files with 74 additions and 39 deletions
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src/documentation/content/xdocs/hslf/ppt-file-format.xml
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@ -219,57 +219,92 @@ BE15 0000 5566 Sheet (1+4)=5 starts at offset 5566
be one of these records. be one of these records.
</p> </p>
<p> <p>
Firstly, this contains the number of characters it applies to, This record is made up of two lists of lists. Firstly,
stored in a 2 byte little endian number. there's a list of paragraph stylings - each made up of the
Normally, this will be the same as the number of characters number of characters it applies two, followed by the matching
in the text record. Then there are two values which encode styling elements. Following that is the equivalent for
paragraph properties (alignment, text spacing etc), both 4 character stylings.
byte little endian numbers.
</p> </p>
<p> <p>
Following this is one block of information for each subsequent Each styling list (in either list) starts with the number
bit of text with a different styling. (If your text was of characters it applies to, stored in a 2 byte little
10 characters in blue, then 10 in red, you would have two blocks). endian number. If it is a paragraph styling, it will be
Firstly is the number of characters it applies to, or 0 if it followed by a 2 byte number (of unknown use). After this is
applies to all remaining text. (This is a 2 byte little endian a four byte number, which is a mask indicating which stylings
number). Then there is a number (4 byte little endian) that will follow. You then have an entry for each of the stylings
encodes if the text is bold/italic/underlined. If that number indicated in the mask. Finally, you move onto the next set
was non zero, it is followed by another 4 byte number, that of stylings.
encodes further text styling information. If it was zero,
then it's followed by a 2 byte number.
</p> </p>
<p> <p>
In the character styling block, the first number after the Each styling has a specific mask flag to indicate its
character count indicated the bold/italic/underlined status presence. (The list may be found towards the top of
of the text. If you binary AND it with 0x00010000 (65536) and org.apache.poi.hslf.record.StyleTextPropAtom.java, and is
get that value back, it is in bold. If you binary AND it with too long to sensibly include here). For each styling entry
0x00020000 (131072) and get that value back, it is in italic. will occur in the order of its mask value (so one with mask
If you binary AND it with 0x00040000 (262144) and get that 1 will come first, followed by the next higest mask value).
value back, it is underlined. Depending on the styling, it is either made up of a 2 byte
or 4 byte numeric value. The meaning of the value will
depend on the styling (eg for font.size, it is the font
size in points).
</p>
<p>
Some stylings are actually mask stylings. For these, the
value will be a 4 byte number. This is then processed as
mask, to indicate a number of different sub-stylings.
The styling for bold/italic/underline is one such example.
</p> </p>
<source> <source>
hex on disk decimal description hex on disk decimal description
----------- ------- ----------- ----------- ------- -----------
0000 0 No options 0000 0 No options
A10F 4001 Record type is 4001 A10F 4001 Record type is 4001
2E00 0000 46 Length of data is 46 bytes 8000 0000 128 Length of data is 128 bytes
5300 83 The paragraph stylings apply to 83 characters 1E00 0000 30 The paragraph styling applies to 30 characters
0000 0000 0 Paragraph stylings 1 - as per the master 0000 0 Paragraph options are 0
0000 0000 0 Paragraph stylings 2 - as per the master 0018 0000 6144 0x0800=Text Alignment, 0x1000=Line Spacing
0000 0 Text Alignment = Left
5000 80 Line Spacing = 80
1E00 30 These character properties apply to 30 characters 1C00 0000 28 The paragraph styling applies to 28 characters
0000 0100 65536 Bold 0000 0 Paragraph options are 0
0000 0100 65536 ?? 0010 0000 4096 0x1000=Line Spacing
1C00 28 These character properties apply to 28 characters 5000 80 Line Spacing = 80
0000 0200 131072 Italic
0400 0200 131076 ??
0000 0 These character properties apply to the remaining characters
0005 1900 1639680 Bold
0000 0000 0 ??
0400 4 ?? 1900 0000 25 The paragraph styling applies to 25 characters
FF33 13311 ?? 0000 0 Paragraph options are 0
00FE 65024 ?? 0018 0000 6144 0x0800=Text Alignment, 0x1000=Line Spacing
0200 0 Text Alignment = Right
5000 80 Line Spacing = 80
6100 0000 61 The paragraph styling applies to 61 characters
(includes final CR)
0000 0 Paragraph options are 0
0018 0000 6144 0x0800=Text Alignment, 0x1000=Line Spacing
0000 0 Text Alignment = Left
5000 80 Line Spacing = 80
1E00 0000 30 The character styling applies to 30 characters
0100 0200 131073 0x0001=Char Props Mask, 0x20000=Font Size
0100 1 Char Props 0x0001=Bold
1400 20 Font Size = 20
1C00 0000 28 The character styling applies to 28 characters
0200 0600 393218 0x0002=Char Props Mask, 0x20000=Font Size, 0x40000=Font Color
0200 2 Char Props 0x0002=Italic
1400 20 Font Size = 20
0000 0005 83886080 Blue
1900 0000 25 The character styling applies to 25 characters
0000 0600 393216 0x20000=Font Size, 0x40000=Font Color
1400 20 Font Size = 20
FF33 00FE 4261426175 Red
6000 0000 96 The character styling applies to 96 characters
0400 0300 196612 0x0004=Char Props Mask, 0x10000=Font Index, 0x20000=Font Size
0400 4 Char Props 0x0004=Underlined
0100 1 Font Index = 1 (2nd Font in table)
1800 24 Font Size = 24
</source> </source>
</section> </section>
</body> </body>