tdf#127964 PPTX import: fix shape fill handling: style vs slide background

Regression from commit 943a534ac7cb3df513583e226c986dafd8ba246b
(tdf#123684 PPTX import: fix wrong background color for <p:sp
useBgFill="1">, 2019-04-23), the problem was that we didn't handle the
case when a shape had an XML fragment like this:

<p:sp useBgFill="1">
<p:style>
<a:fillRef idx="1">
<a:schemeClr val="accent1"/>
</a:fillRef>
</p:style>
</p:sp>

i.e. the shape both wants to use background fill and it has a style
declaring how to fill it as well. We gave the style a priority, while
PowerPoint gives the background fill a priority.

Fix the problem by not setting the fill from the style in case the
background fill is already set.

Change-Id: Ie1b56e5615219138a5b7ddd7a2b25295b991bc05
Reviewed-on: https://gerrit.libreoffice.org/80804
Tested-by: Jenkins
Reviewed-by: Miklos Vajna <vmiklos@collabora.com>
(cherry picked from commit 46d630f98f1c07ec2048da35d1a4804181148ac5)
Reviewed-on: https://gerrit.libreoffice.org/80807
Reviewed-by: Xisco Faulí <xiscofauli@libreoffice.org>

1 files changed, 5 insertions, 0 deletions

diff --git a/include/oox/drawingml/shape.hxx b/include/oox/drawingml/shape.hxx
index 5aa6f00318a8..4abf973d8cb7 100644
--- a/include/oox/drawingml/shape.hxx
+++ b/include/oox/drawingml/shape.hxx
@@ -228,6 +228,8 @@ public:
     void setVerticalShapesCount(sal_Int32 nVerticalShapesCount) { mnVerticalShapesCount = nVerticalShapesCount; }
     sal_Int32 getVerticalShapesCount() const { return mnVerticalShapesCount; }
 
+    void setUseBgFill(bool bUseBgFill) { mbUseBgFill = bUseBgFill; }
+
     /// Changes reference semantics to value semantics for fill properties.
     void cloneFillProperties();
 
@@ -367,6 +369,9 @@ private:
 
     /// Number of child shapes to be layouted vertically inside org chart in-diagram shape.
     sal_Int32 mnVerticalShapesCount = 0;
+
+    /// The shape fill should be set to that of the slide background surface.
+    bool mbUseBgFill = false;
 };
 
 } }