Hi Drew,
Thats pretty helpful and useful information. Do you think you could
reformat it into an xml, create a zip containing it, create a patch
against a book.xml and submit it through bugzilla with [PATCH] in the
subject? Then we can get it up on the website and ensure its saved
elsewhere other than the mail archive.
look in jakarta-poi/src/documentation/xdocs for details. To create a
patch just do "cvs diff -u" against your local copy.
To zip it just get into the jakarta-poi directory and save the relative
directories with your favorite zip program.
Thanks,
-Andy
On Sun, 2002-04-28 at 15:50, Drew Varner wrote:
> Attached is a rough HTML file I wrote that describes the structure of the byte
> [] returned by SummaryInformation's getThumbnailMethod() when it is implemented
> like this (simply remove the Exception it currently throws):
>
> /**
> * <p>Returns the stream's thumbnail (or <code>null</code>)</p>
> */
> public byte[] getThumbnail()
> {
> return (byte[]) getProperty(PropertyIDMap.PID_THUMBNAIL);
> }
>
> Assumptions:
> + A Windows machine saved the info
> + the info is saved in the recommended METAFILE format (Clipboard metafile)
>
> The standard WMF file byte array begins at position 24 of the array (beginning
> of WindowsMetaHeader struct) and ends with the end of the array.
> The first 24 bytes are Cliboard specific headers. (VT_CF - Variant Type
> Clipboard Format)
>
> - Drew
> ___________________
> Drew Varner
> [EMAIL PROTECTED]
> ----
>
byte[]
returned by SummaryInformation.getThumbnail()
Sample
Data
71
20660
-1
3
8
?
?
0
1
9
Description
VT_CF
Variant Type - Clipbard Format
VT_CF==17
Pointer to a CLIPDATA structure
Clipboard Size
cbSize
is the
size
of the
buffer
pointed to by pClipData, plus sizeof(ulClipFmt)
cbSize
cftag
Clipboard Format Tag
* -1L
a
built-in Windows� clipboard format value.
* -2L
Macintosh clipboard format value.
* -3L
A GUID
containing a format identifier (FMTID).
* 0L
No
data
(rarely used)
Format
ID
If
cftag
is -1
then
this
is a
DWord
descibring the image format
* 3
CF_METAFILEPICT (Windows Metafile) (recommended)
* 8
CF_DIB
(Device Independent Bitmap)
Note:
These
formats are specific to Clipboard, and Clipboard-specific headers will
follow
mm
Mapping Mode
Value
Mapping Mode
1
Text
2
Low
Metric
3
High
Metric
4
Low
English
5
High
English
6
Twips
7
Isotropic
8
Anisotropic
Table
from
GFF
Format
Summary http://www.wvware.com/caolan/ora-wmf.html
Width
Width
of the
Metafile
Height
Height
of the
Metafile
Handle
Handle
to the
Metafile in Memory
FileType
*
0=memory
*
1=disk
HeaderSize
HeaderSize contains the size of the metafile header in 16-bit WORDs.
This value is always 9.
Width
DWord
Unsigned Long
DWord
(Long)
DWord
Word
Word
Word
Word
Word
Word
CLIPDATA Struct
Clipboard16MetaHeader
WindowsMetaHeader
Infomation taken from http://msdn.microsoft.com and
http://www.wvware.com/caolan/ora-wmf.html
--
http://www.superlinksoftware.com
http://jakarta.apache.org/poi - port of Excel/Word/OLE 2 Compound
Document
format to java
http://developer.java.sun.com/developer/bugParade/bugs/4487555.html
- fix java generics!
The avalanche has already started. It is too late for the pebbles to
vote.
-Ambassador Kosh
