Block moving a spline by dragging if a formula was used.

--HG--
branch : feature

src/libs/vtools/tools/drawTools/toolcurve/vtoolspline.cpp

@@ -32,6 +32,7 @@
 #include "../../../undocommands/movespline.h"
 #include "../../../visualization/vistoolspline.h"
 #include "../vwidgets/vcontrolpointspline.h"
+#include "../qmuparser/qmutokenparser.h"
 
 #if QT_VERSION < QT_VERSION_CHECK(5, 1, 0)
 #   include "../vmisc/vmath.h"
@@ -334,12 +335,20 @@ void VToolSpline::mousePressEvent(QGraphicsSceneMouseEvent *event)
     if (flags() & QGraphicsItem::ItemIsMovable)
     {
         if (event->button() == Qt::LeftButton && event->type() != QEvent::GraphicsSceneMouseDoubleClick)
+        {
+            const auto spline = VAbstractTool::data.GeometricObject<VSpline>(id);
+
+            if (qmu::QmuTokenParser::IsSingle(spline->GetStartAngleFormula()) &&
+                qmu::QmuTokenParser::IsSingle(spline->GetEndAngleFormula()) &&
+                qmu::QmuTokenParser::IsSingle(spline->GetC1LengthFormula()) &&
+                qmu::QmuTokenParser::IsSingle(spline->GetC2LengthFormula()))
             {
                 SetOverrideCursor(cursorArrowCloseHand, 1, 1);
                 oldPosition = event->scenePos();
                 event->accept();
             }
         }
+    }
     VAbstractSpline::mousePressEvent(event);
 }
 
@@ -349,17 +358,32 @@ void VToolSpline::mouseReleaseEvent(QGraphicsSceneMouseEvent *event)
     if (flags() & QGraphicsItem::ItemIsMovable)
     {
         if (event->button() == Qt::LeftButton && event->type() != QEvent::GraphicsSceneMouseDoubleClick)
+        {
+            const auto spline = VAbstractTool::data.GeometricObject<VSpline>(id);
+
+            if (qmu::QmuTokenParser::IsSingle(spline->GetStartAngleFormula()) &&
+                qmu::QmuTokenParser::IsSingle(spline->GetEndAngleFormula()) &&
+                qmu::QmuTokenParser::IsSingle(spline->GetC1LengthFormula()) &&
+                qmu::QmuTokenParser::IsSingle(spline->GetC2LengthFormula()))
             {
                 //Disable cursor-arrow-closehand
                 RestoreOverrideCursor(cursorArrowCloseHand);
             }
         }
+    }
     VAbstractSpline::mouseReleaseEvent(event);
 }
 
 //---------------------------------------------------------------------------------------------------------------------
 void VToolSpline::mouseMoveEvent(QGraphicsSceneMouseEvent *event)
 {
+    const auto spline = VAbstractTool::data.GeometricObject<VSpline>(id);
+
+    if (qmu::QmuTokenParser::IsSingle(spline->GetStartAngleFormula()) &&
+        qmu::QmuTokenParser::IsSingle(spline->GetEndAngleFormula()) &&
+        qmu::QmuTokenParser::IsSingle(spline->GetC1LengthFormula()) &&
+        qmu::QmuTokenParser::IsSingle(spline->GetC2LengthFormula()))
+    {
         // Don't need check if left mouse button was pressed. According to the Qt documentation "If you do receive this
         // event, you can be certain that this item also received a mouse press event, and that this item is the current
         // mouse grabber.".
@@ -368,7 +392,6 @@ void VToolSpline::mouseMoveEvent(QGraphicsSceneMouseEvent *event)
         // "weight" describes how the influence of the drag should be distributed
         // among the handles; 0 = front handle only, 1 = back handle only.
 
-    const QSharedPointer<VSpline> spline = VAbstractTool::data.GeometricObject<VSpline>(id);
         const qreal t = spline->ParamT(oldPosition);
 
         if (qFloor(t) == -1)
@@ -429,15 +452,24 @@ void VToolSpline::mouseMoveEvent(QGraphicsSceneMouseEvent *event)
            }
            changeFinished = true;
         }
+    }
 }
 
 //---------------------------------------------------------------------------------------------------------------------
 void VToolSpline::hoverEnterEvent(QGraphicsSceneHoverEvent *event)
 {
     if (flags() & QGraphicsItem::ItemIsMovable)
+    {
+        const auto spline = VAbstractTool::data.GeometricObject<VSpline>(id);
+
+        if (qmu::QmuTokenParser::IsSingle(spline->GetStartAngleFormula()) &&
+            qmu::QmuTokenParser::IsSingle(spline->GetEndAngleFormula()) &&
+            qmu::QmuTokenParser::IsSingle(spline->GetC1LengthFormula()) &&
+            qmu::QmuTokenParser::IsSingle(spline->GetC2LengthFormula()))
         {
             SetOverrideCursor(cursorArrowOpenHand, 1, 1);
         }
+    }
 
     VAbstractSpline::hoverEnterEvent(event);
 }
@@ -446,10 +478,18 @@ void VToolSpline::hoverEnterEvent(QGraphicsSceneHoverEvent *event)
 void VToolSpline::hoverLeaveEvent(QGraphicsSceneHoverEvent *event)
 {
     if (flags() & QGraphicsItem::ItemIsMovable)
+    {
+        const auto spline = VAbstractTool::data.GeometricObject<VSpline>(id);
+
+        if (qmu::QmuTokenParser::IsSingle(spline->GetStartAngleFormula()) &&
+            qmu::QmuTokenParser::IsSingle(spline->GetEndAngleFormula()) &&
+            qmu::QmuTokenParser::IsSingle(spline->GetC1LengthFormula()) &&
+            qmu::QmuTokenParser::IsSingle(spline->GetC2LengthFormula()))
         {
             //Disable cursor-arrow-openhand
             RestoreOverrideCursor(cursorArrowOpenHand);
         }
+    }
 
     VAbstractSpline::hoverLeaveEvent(event);
 }
@@ -527,6 +567,8 @@ void VToolSpline::RefreshGeometry()
 //---------------------------------------------------------------------------------------------------------------------
 void VToolSpline::SetSplineAttributes(QDomElement &domElement, const VSpline &spl)
 {
+    SCASSERT(doc != nullptr);
+
     if (domElement.attribute(AttrType) == OldToolType)
     {
         doc->SetAttribute(domElement, AttrType, ToolType);

src/test/ValentinaTest/tst_qmutokenparser.cpp

@@ -52,6 +52,12 @@ void TST_QmuTokenParser::IsSingle_data()
     QTest::newRow("Empty string") << "" << false;
     QTest::newRow("Several spaces") << "   " << false;
     QTest::newRow("Invalid formula") << "2*)))" << false;
+    QTest::newRow("Incorrect thousand separator 15 500") << "15 500" << false;
+    QTest::newRow("Correct C locale 15500") << "15500" << true;
+    QTest::newRow("Correct C locale 15,500") << "15,500" << true;
+    QTest::newRow("Correct C locale 15,500.1") << "15,500.1" << true;
+    QTest::newRow("Not C locale 15,5") << "15,5" << false;
+    QTest::newRow("Not C locale 15.500,1") << "15.500,1" << false;
 }
 
 //---------------------------------------------------------------------------------------------------------------------