[gnumeric] Write only non-negative gradient angles.

[Andreas J. Guelzow <guelzow src gnome org>]

commit ff2cfcf6927c0dec82bd37941d46b5e6fc0d97a8
Author: Andreas J. Guelzow <aguelzow pyrshep ca>
Date:   Thu Feb 19 20:16:44 2015 -0700

    Write only non-negative gradient angles.
    
    2015-02-19  Andreas J. Guelzow <aguelzow pyrshep ca>
    
        * openoffice-write.c (odf_write_gradient_info): use positive angles

 plugins/openoffice/ChangeLog          |    4 ++++
 plugins/openoffice/openoffice-write.c |   12 ++++++------
 2 files changed, 10 insertions(+), 6 deletions(-)
---
diff --git a/plugins/openoffice/ChangeLog b/plugins/openoffice/ChangeLog
index 1e8174d..fee3a85 100644
--- a/plugins/openoffice/ChangeLog
+++ b/plugins/openoffice/ChangeLog
@@ -1,3 +1,7 @@
+2015-02-19  Andreas J. Guelzow <aguelzow pyrshep ca>
+
+       * openoffice-write.c (odf_write_gradient_info): use positive angles
+
 2015-02-17  Morten Welinder  <terra gnome org>
 
        * openoffice-write.c (odf_write_regression_curve): Plug leak.
diff --git a/plugins/openoffice/openoffice-write.c b/plugins/openoffice/openoffice-write.c
index 123b449..e705997 100644
--- a/plugins/openoffice/openoffice-write.c
+++ b/plugins/openoffice/openoffice-write.c
@@ -5749,17 +5749,17 @@ odf_write_gradient_info (GOStyle const *style, char const *name, GnmOOExport *st
                {GO_GRADIENT_S_TO_N, "linear", 0},
                {GO_GRADIENT_N_TO_S_MIRRORED, "axial", 180},
                {GO_GRADIENT_S_TO_N_MIRRORED, "axial", 0},
-               {GO_GRADIENT_W_TO_E, "linear", -90},
+               {GO_GRADIENT_W_TO_E, "linear", 270},
                {GO_GRADIENT_E_TO_W, "linear", 90},
-               {GO_GRADIENT_W_TO_E_MIRRORED, "axial", -90},
+               {GO_GRADIENT_W_TO_E_MIRRORED, "axial", 270},
                {GO_GRADIENT_E_TO_W_MIRRORED, "axial", 90},
-               {GO_GRADIENT_NW_TO_SE, "linear", -135},
+               {GO_GRADIENT_NW_TO_SE, "linear", 225},
                {GO_GRADIENT_SE_TO_NW, "linear", 45},
-               {GO_GRADIENT_NW_TO_SE_MIRRORED, "axial", -135 },
+               {GO_GRADIENT_NW_TO_SE_MIRRORED, "axial", 225},
                {GO_GRADIENT_SE_TO_NW_MIRRORED, "axial", 45},
                {GO_GRADIENT_NE_TO_SW, "linear", 135},
-               {GO_GRADIENT_SW_TO_NE, "linear", -45},
-               {GO_GRADIENT_SW_TO_NE_MIRRORED, "axial", -45},
+               {GO_GRADIENT_SW_TO_NE, "linear", 315},
+               {GO_GRADIENT_SW_TO_NE_MIRRORED, "axial", 315},
                {GO_GRADIENT_NE_TO_SW_MIRRORED, "axial", 135},
        };
        int i;