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| author | Adrian Johnson <ajohnson@redneon.com> | 2017-08-26 09:58:48 +0930 |
|---|---|---|
| committer | Adrian Johnson <ajohnson@redneon.com> | 2017-08-26 16:26:12 +0930 |
| commit | df37baf7895ef9acc71f3627b22e7368c8af3ea1 (patch) | |
| tree | 31a859c66d5b9ab393599d261900012c470cbf9d /src/cairo.c | |
| parent | 74c6e3ae1d356e8bb4c7043cb9d3897c45cc0f79 (diff) | |
| download | cairo-df37baf7895ef9acc71f3627b22e7368c8af3ea1.tar.gz | |
pdf: fix link positions
Converting the link position from cairo to pdf coordinates requires
the page height. Since the link may point to a different page, build
an array of the height of each page and use the target page height for
the conversion.
Don't default to a [0,0] position if "pos" is not specified. PDF
allows a null destination position to be specified which means don't
change the position if the page is already displayed or show top left
if switching to a different page. This is more useful default
particularly for external files where the coordinates (which must be
in PDF coordinates as we don't know the page height) of the top left
corner may not be known.
Diffstat (limited to 'src/cairo.c')
| -rw-r--r-- | src/cairo.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/src/cairo.c b/src/cairo.c index eb863efdb..49cdbcf60 100644 --- a/src/cairo.c +++ b/src/cairo.c @@ -193,7 +193,7 @@ * @page: An integer specifying the page number in the PDF file to link to. * * @pos: [optional] An array of two floats specifying the x,y position - * on the page. Default is 0,0. + * on the page. * * An example of the link attributes to link to a page and x,y position: * <programlisting> @@ -227,8 +227,9 @@ * * @page: An integer specifying the page number in the PDF file. * - * @pos: [optional] An array of two floats specifying the x,y position - * on the page. Default is 0,0. + * @pos: [optional] An array of two floats specifying the x,y + * position on the page. Position coordinates in external files are in PDF + * coordinates (0,0 at bottom left). * * An example of the link attributes to PDF file: * <programlisting> |