Add support for horizontal gradients in Rectangle

[ChangeLog][QtQuick] Added support for horizontal gradients in
Rectangle.

Change-Id: I4feee8ec93d9fe75a9f91a7afbe33c8d4756cedb
Reviewed-by: Mitch Curtis <mitch.curtis@qt.io>
Reviewed-by: Robin Burchell <robin.burchell@crimson.no>

2 files changed, 12 insertions, 4 deletions

diff --git a/src/plugins/scenegraph/openvg/qsgopenvginternalrectanglenode.cpp b/src/plugins/scenegraph/openvg/qsgopenvginternalrectanglenode.cpp
index 0bd51cbf46..d728686248 100644
--- a/src/plugins/scenegraph/openvg/qsgopenvginternalrectanglenode.cpp
+++ b/src/plugins/scenegraph/openvg/qsgopenvginternalrectanglenode.cpp
@@ -176,6 +176,12 @@ void QSGOpenVGInternalRectangleNode::setGradientStops(const QGradientStops &stop
     m_fillDirty = true;
 }
 
+void QSGOpenVGInternalRectangleNode::setGradientVertical(bool vertical)
+{
+    m_vertical = vertical;
+    m_fillDirty = true;
+}
+
 void QSGOpenVGInternalRectangleNode::setRadius(qreal radius)
 {
     m_radius = radius;
@@ -242,13 +248,13 @@ void QSGOpenVGInternalRectangleNode::render()
         } else {
             // Linear Gradient
             vgSetParameteri(m_rectanglePaint, VG_PAINT_TYPE, VG_PAINT_TYPE_LINEAR_GRADIENT);
-            const VGfloat verticalLinearGradient[] = {
-                0.0f,
+            const VGfloat linearGradient[] = {
                 0.0f,
                 0.0f,
-                static_cast<VGfloat>(m_rect.height())
+                m_vertical ? 0.0f : static_cast<VGfloat>(m_rect.width()),
+                m_vertical ? static_cast<VGfloat>(m_rect.height()) : 0.0f
             };
-            vgSetParameterfv(m_rectanglePaint, VG_PAINT_LINEAR_GRADIENT, 4, verticalLinearGradient);
+            vgSetParameterfv(m_rectanglePaint, VG_PAINT_LINEAR_GRADIENT, 4, linearGradient);
             vgSetParameteri(m_rectanglePaint, VG_PAINT_COLOR_RAMP_SPREAD_MODE, VG_COLOR_RAMP_SPREAD_PAD);
             vgSetParameteri(m_rectanglePaint, VG_PAINT_COLOR_RAMP_PREMULTIPLIED, false);
 
diff --git a/src/plugins/scenegraph/openvg/qsgopenvginternalrectanglenode.h b/src/plugins/scenegraph/openvg/qsgopenvginternalrectanglenode.h
index e8d25c94f8..86d2c3318c 100644
--- a/src/plugins/scenegraph/openvg/qsgopenvginternalrectanglenode.h
+++ b/src/plugins/scenegraph/openvg/qsgopenvginternalrectanglenode.h
@@ -59,6 +59,7 @@ public:
     void setPenColor(const QColor &color) override;
     void setPenWidth(qreal width) override;
     void setGradientStops(const QGradientStops &stops) override;
+    void setGradientVertical(bool vertical) override;
     void setRadius(qreal radius) override;
     void setAligned(bool aligned) override;
     void update() override;
@@ -85,6 +86,7 @@ private:
     qreal m_penWidth = 0.0;
     qreal m_radius = 0.0;
     bool m_aligned = false;
+    bool m_vertical = true;
     QGradientStops m_gradientStops;
 
     VGPath m_rectanglePath;