Rotate in the same sense as xdvi et al.

[lyx.git] / src / graphics / GraphicsImageXPM.C

diff --git a/src/graphics/GraphicsImageXPM.C b/src/graphics/GraphicsImageXPM.C
index de34ab9ba0bdfc03b6c61003026a85c200eb4b77..642c81c1de8a550cce0044a166f85bffb584263f 100644 (file)
--- a/src/graphics/GraphicsImageXPM.C
+++ b/src/graphics/GraphicsImageXPM.C
@@ -282,7 +282,8 @@ void GImageXPM::rotate(GParams const & params)
        // Ascertain the bounding box of the rotated image
        // Rotate about the bottom-left corner
        static double const pi = 3.14159265358979323846;
-       double const angle = double(params.angle) * pi / 180.0;
+       // The minus sign is needed to rotate in the same sense as xdvi et al.
+       double const angle = -double(params.angle) * pi / 180.0;
        double const cos_a = cos(angle);
        double const sin_a = sin(angle);