fdo#75260: Correctly draw double lines for both Writer and Calc.

Fix all sorts of incorrect double line handling in drawinglayer in order to
draw thick-thin double line types correctly.  Also change handling of border
lines in writer tables. There are still some outstanding issues but it's
much better than how it was before.

Also realized that Word and Excel handle simple thin double lines differently;
Word varies widths of all of the lines and the gap whereas Excel only has one
fixed size for its double line.  For this reason I decided to add a separate
double line type (DOUBLE_THIN) to handle Excel's double line.

(cherry picked from commit 2c62596cf264ef10749d8bfdb2bb2ebef2d98fbc)

Conflicts:
cui/source/tabpages/border.cxx
sc/qa/unit/subsequent_export-test.cxx
sc/source/ui/view/tabvwsha.cxx
sw/source/core/layout/paintfrm.cxx
xmloff/source/style/bordrhdl.cxx

Conflicts:
cui/source/tabpages/border.cxx
sw/source/core/layout/paintfrm.cxx
xmloff/source/style/bordrhdl.cxx

Change-Id: Iaaa353b6e4f998b524262bea59260b4333e0cdb4

1 files changed, 8 insertions, 2 deletions

diff --git a/offapi/com/sun/star/table/BorderLineStyle.idl b/offapi/com/sun/star/table/BorderLineStyle.idl
index 4108bcdb26de..0ea6fa1a9fcc 100644
--- a/offapi/com/sun/star/table/BorderLineStyle.idl
+++ b/offapi/com/sun/star/table/BorderLineStyle.idl
@@ -41,7 +41,8 @@ constants BorderLineStyle
      */
     const short DASHED = 2;
 
-    /** Double border line.
+    /** Double border line. Widths of the lines and the gap are all equal,
+        and vary equally with the total width.
      */
     const short DOUBLE = 3;
 
@@ -95,9 +96,14 @@ constants BorderLineStyle
      */
     const short FINE_DASHED = 14;
 
+    /** Double border line consisting of two fixed thin lines separated by a
+        variable gap.
+     */
+    const short DOUBLE_THIN = 15;
+
     /** Maximum valid border line style value.
      */
-    const short BORDER_LINE_STYLE_MAX = 14;
+    const short BORDER_LINE_STYLE_MAX = 15;
 };