4 files changed, 42 insertions, 3 deletions
diff --git a/src/plugins/qmldesigner/components/curveeditor/detail/curveitem.cpp b/src/plugins/qmldesigner/components/curveeditor/detail/curveitem.cpp
index 86aae0b2cc..90818be74b 100644
--- a/src/plugins/qmldesigner/components/curveeditor/detail/curveitem.cpp
+++ b/src/plugins/qmldesigner/components/curveeditor/detail/curveitem.cpp
@@ -87,6 +87,16 @@ QRectF CurveItem::boundingRect() const
     for (auto *item : m_keyframes)
         bbox(bounds, item->keyframe());
 
+    if (auto *s = qobject_cast<GraphicsScene *>(scene())) {
+        bounds.setLeft(s->animationRangeMin());
+        bounds.setRight(s->animationRangeMax());
+    }
+
+    if (qFuzzyCompare(bounds.height(), 0.0)) {
+        auto tmp = CurveEditorStyle::defaultValueRange() / 2.0;
+        bounds.adjust(0.0, -tmp, 0.0, tmp);
+    }
+
     return m_transform.mapRect(bounds);
 }
 
diff --git a/src/plugins/qmldesigner/components/curveeditor/detail/graphicsscene.cpp b/src/plugins/qmldesigner/components/curveeditor/detail/graphicsscene.cpp
index aca41b4d6d..e9f9050f62 100644
--- a/src/plugins/qmldesigner/components/curveeditor/detail/graphicsscene.cpp
+++ b/src/plugins/qmldesigner/components/curveeditor/detail/graphicsscene.cpp
@@ -114,9 +114,29 @@ double GraphicsScene::maximumValue() const
     return limits().top();
 }
 
+double GraphicsScene::animationRangeMin() const
+{
+    if (GraphicsView *gview = graphicsView())
+        return gview->minimumTime();
+
+    return minimumTime();
+}
+
+double GraphicsScene::animationRangeMax() const
+{
+    if (GraphicsView *gview = graphicsView())
+        return gview->maximumTime();
+
+    return maximumTime();
+}
+
 QRectF GraphicsScene::rect() const
 {
-    return sceneRect();
+    QRectF rect;
+    for (auto *curve : curves())
+        rect |= curve->boundingRect();
+
+    return rect;
 }
 
 QVector<CurveItem *> GraphicsScene::curves() const
@@ -410,6 +430,11 @@ QRectF GraphicsScene::limits() const
         }
 
         m_limits = QRectF(QPointF(min.x(), max.y()), QPointF(max.x(), min.y()));
+        if (qFuzzyCompare(m_limits.height(), 0.0)) {
+            auto tmp = CurveEditorStyle::defaultValueRange() / 2.0;
+            m_limits.adjust(0.0, tmp, 0.0, -tmp);
+        }
+
         m_dirty = false;
     }
     return m_limits;
diff --git a/src/plugins/qmldesigner/components/curveeditor/detail/graphicsscene.h b/src/plugins/qmldesigner/components/curveeditor/detail/graphicsscene.h
index 9443130b3e..c19f72b130 100644
--- a/src/plugins/qmldesigner/components/curveeditor/detail/graphicsscene.h
+++ b/src/plugins/qmldesigner/components/curveeditor/detail/graphicsscene.h
@@ -67,6 +67,10 @@ public:
 
     double maximumValue() const;
 
+    double animationRangeMin() const;
+
+    double animationRangeMax() const;
+
     QRectF rect() const;
 
     QVector<CurveItem *> curves() const;
diff --git a/src/plugins/qmldesigner/components/curveeditor/detail/graphicsview.cpp b/src/plugins/qmldesigner/components/curveeditor/detail/graphicsview.cpp
index 9fec8b2fc5..c162b5fd90 100644
--- a/src/plugins/qmldesigner/components/curveeditor/detail/graphicsview.cpp
+++ b/src/plugins/qmldesigner/components/curveeditor/detail/graphicsview.cpp
@@ -126,12 +126,12 @@ double GraphicsView::maximumTime() const
 
 double GraphicsView::minimumValue() const
 {
-    return m_scene->empty() ? -1.0 : m_scene->minimumValue();
+    return m_scene->empty() ? CurveEditorStyle::defaultValueMin : m_scene->minimumValue();
 }
 
 double GraphicsView::maximumValue() const
 {
-    return m_scene->empty() ? 1.0 : m_scene->maximumValue();
+    return m_scene->empty() ? CurveEditorStyle::defaultValueMax : m_scene->maximumValue();
 }
 
 double GraphicsView::zoomX() const