Better pixelization of dashed lines for screen rendering.

Now the dashed lines are evenly placed on screen.  For now, horizontal lines
only.  I'll work on vertical lines later.

Change-Id: I474e9c8214e5f079ea2cfca12b35381d8fcf2ae1

1 files changed, 10 insertions, 0 deletions

diff --git a/svtools/source/control/ctrlbox.cxx b/svtools/source/control/ctrlbox.cxx
index b77b737037ea..47012cd7a79c 100644
--- a/svtools/source/control/ctrlbox.cxx
+++ b/svtools/source/control/ctrlbox.cxx
@@ -586,6 +586,9 @@ void lclDrawPolygon( OutputDevice& rDev, const basegfx::B2DPolygon& rPolygon, lo
 
 namespace svtools {
 
+/**
+ * Dashing array must start with a line width and end with a blank width.
+ */
 std::vector<double> GetDashing( sal_uInt16 nDashing )
 {
     std::vector<double> aPattern;
@@ -625,6 +628,13 @@ public:
 
 }
 
+std::vector<double> GetLineDashing( sal_uInt16 nDashing, double fScale )
+{
+    std::vector<double> aPattern = GetDashing(nDashing);
+    std::for_each(aPattern.begin(), aPattern.end(), ApplyScale(fScale));
+    return aPattern;
+}
+
 basegfx::B2DPolyPolygon ApplyLineDashing( const basegfx::B2DPolygon& rPolygon, sal_uInt16 nDashing, double fScale )
 {
     std::vector<double> aPattern = GetDashing(nDashing);