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quartz: Fix y glyph advance

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The advances must be transformed by the "quartz inverse scale",
i.e. (scale_inverse * scale(1,-1)).

Fixes show-glyph-advance.
This commit is contained in:
Andrea Canciani 2011-03-16 17:12:59 +01:00
parent aaf87a65a8
commit b4466bc914
1 changed files with 8 additions and 1 deletions
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9
src/cairo-quartz-surface.c
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@ -2579,12 +2579,19 @@ _cairo_quartz_surface_show_glyphs_cg (void *abstract_surface,
}
}
/* scale(1,-1) * scaled_font->scale */
textTransform = CGAffineTransformMake (scaled_font->scale.xx,
scaled_font->scale.yx,
-scaled_font->scale.xy,
-scaled_font->scale.yy,
0, 0);
_cairo_quartz_cairo_matrix_to_quartz (&scaled_font->scale_inverse, &invTextTransform);
/* scaled_font->scale_inverse * scale(1,-1) */
invTextTransform = CGAffineTransformMake (scaled_font->scale_inverse.xx,
-scaled_font->scale_inverse.yx,
scaled_font->scale_inverse.xy,
-scaled_font->scale_inverse.yy,
0.0, 0.0);
CGContextSetTextMatrix (surface->cgContext, CGAffineTransformIdentity);