tdf#124155 change "gradient tab page" - increment & angle slider

Remove slider for increments as the increments should better be
left to "auto" and rarely modified (setting a value means it will
use a limitied amount of increments, but auto effectively means
as much as it is needed and can use the native backend for
drawing).

OTOH use a slider for setting the "angle" as it is already present
in hatch tab page. Angle needs a slider as it is usually one of
the main properties of a gradient (especially linear).

Increase the tab pages a bit (10px on every side) to have a bit of
breating space for all the widgets.

Reviewed-on: https://gerrit.libreoffice.org/70175
Tested-by: Jenkins
Reviewed-by: Tomaž Vajngerl <quikee@gmail.com>
(cherry picked from commit 994b41a6c69d20637dcb95894c385f5c0102d600)

Change-Id: I66167fe2c97b53bc3627237279332bdd59fb03d7

1 files changed, 6 insertions, 0 deletions

diff --git a/include/tools/gen.hxx b/include/tools/gen.hxx
index c4dd2e6fd02b..77e90a266245 100644
--- a/include/tools/gen.hxx
+++ b/include/tools/gen.hxx
@@ -195,6 +195,12 @@ public:
     long            getHeight() const { return Height(); }
     void            setWidth(long nWidth)  { Width() = nWidth; }
     void            setHeight(long nHeight)  { Height() = nHeight; }
+
+    void extendBy(long x, long y)
+    {
+        nA += x;
+        nB += y;
+    }
 };
 
 inline bool operator ==(Size const & s1, Size const & s2)