Removed usage of NaN in SVG gradients.

Since there is no way to find out if gradient stops have been added to a
gradient, a gradient stop at NaN was earlier used in the SVG module to
mark the gradient as empty. This could cause floating point exceptions.
The usage of NaN has now been replaced by a boolean in
QSvgGradientStyle.

Duplicate entry "qxmlpatterns" was removed from auto.pro in the auto
test directory.

Task-number: 250146
Reviewed-by: Samuel

1 files changed, 11 insertions, 0 deletions

diff --git a/src/svg/qsvgstyle_p.h b/src/svg/qsvgstyle_p.h
index ff4058b..058ba35 100644
--- a/src/svg/qsvgstyle_p.h
+++ b/src/svg/qsvgstyle_p.h
@@ -376,6 +376,16 @@ public:
     }
 
     void addResolve(qreal offset);
+
+    bool gradientStopsSet() const
+    {
+        return m_gradientStopsSet;
+    }
+
+    void setGradientStopsSet(bool set)
+    {
+        m_gradientStopsSet = set;
+    }
 private:
     QGradient      *m_gradient;
     QList<qreal>  m_resolvePoints;
@@ -386,6 +396,7 @@ private:
 
     QSvgTinyDocument *m_doc;
     QString           m_link;
+    bool m_gradientStopsSet;
 };
 
 class QSvgTransformStyle : public QSvgStyleProperty