Christof Lutz writes:
> yes, that's true and it's a pity that there is no way :-) So what
> do you suggest:
>
> I want to mark particular points in one or more images and use the
> marked coordinates in my plugin-dialog. Do you think it's the best to
> create picture-buttons with more or less small thumbnails of the images
> and read the coordinates of the corresponding GDK_BUTTON_PRESS? The
> smaller the thumbnail, the more unprecise the coordinates I get. Is this
> way possible actually? How can I get reasonable results in respect to
> the precision of the corrdinates?
My apologies for misunderstanding the question. I am doing something
very much like this in gfig, using the following code (simplified
a little bit):
if (! back_pixbuf)
back_pixbuf = gimp_image_get_thumbnail (image_id,
preview_width, preview_height,
GIMP_PIXBUF_LARGE_CHECKS);
if (back_pixbuf)
gdk_draw_pixbuf (preview->window,
preview->style->fg_gc[GTK_STATE_NORMAL],
back_pixbuf, 0, 0,
0, 0,
gdk_pixbuf_get_width (back_pixbuf),
gdk_pixbuf_get_height (back_pixbuf),
GDK_RGB_DITHER_NONE, 0, 0);
Here "preview" is a GtkDrawingArea. You can create a thumbnail up
to 512 x 512 in this way. (Incidentally, thanks to Sven for improving
the code I originally wrote to do this.)
Best,
-- Bill
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