[cairo] new pattern interface bug
vladimir at pobox.com
Mon Apr 5 23:16:37 PDT 2004
I have some code that creates a surface from data (image data), and then
renders the image like so:
cairo_t *ct = ...;
cairo_set_pattern (ct, image_surface);
cairo_move_to (ct, x, y);
cairo_rectangle (ct, x, y, width, height);
With the pattern patch, I changed this to:
cairo_pattern_t *image_pattern = cairo_pattern_create_for_surface
cairo_set_pattern (ct, image_pattern);
... /* as above */
However, in the second case, the surface is always rendered at 0,0; or
rather, it tries to be rendered there, but is clipped to the rect.
(Note: I just noticed that the move_to is redundant, but I can't easily
re-test this without the move_to atm :) So, if the image is 100 pixels
wide, and I render at x = 50, in the first case, the image is rendered
from 50 to 150; in the second case, I only see the second "half" of the
image, at x=50 to 100.
Am I doing something wrong with the (propsed) pattern interface?
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