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correct implementation for Rectangle::vertical_fraction()

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Paul Davis 2014-11-24 13:30:58 +02:00
parent 5ffa87b8ad
commit 4911ce6db0
1 changed files with 4 additions and 1 deletions
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5
libs/canvas/rectangle.cc
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@ -243,5 +243,8 @@ Rectangle::vertical_fraction (double y) const
return 0;
}
return (i.y - bbox.y0) / bbox.height();
/* convert to fit Cairo origin model (origin at upper left)
*/
return 1.0 - ((i.y - bbox.y0) / bbox.height());
}