Hi,
how can I add an image to a spreadsheet cell in such a way that when the
mouse pointer is over the image, a larger version of the image is displayed?
The larger, original version of the image resides on a web server. The
scaled down image is inserted into the spreadsheet with the
'insert_image()' method provided by 'Excel::Writer::XLSX'[1] because
it's impossible to use an URL for this.
Every image is scaled down before inserting it into the spreadsheet
because using the original image and setting a scale of the image in the
spreadsheet makes things unusably slow. The scaled down version is too
small to be useful when zoomed, hence the original image needs to be
used for the large display.
When the image is zoomed, it may cover neighbouring rows and cells, i.
e. the size of the cell the image is in doesn't need to change.
Ideas for both LO and M$ Excel are welcome, especially since LO is
rather buggy and slow with displaying the images anyway, whereas Excel
performs nicely.
These spreadsheets have a few thousand images.
[1]: see
http://search.cpan.org/~jmcnamara/Excel-Writer-XLSX-0.84/lib/Excel/Writer/XLSX.pm
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