QmlDesigner.propertyEditor: avoiding warnings

I added more checks for undefined - there should be no warnings left

share/qtcreator/qmldesigner/propertyeditor/Qt/CheckBox.qml

@@ -7,10 +7,10 @@ QCheckBox { //This is a special CheckBox that does color coding for states
    property var baseStateFlag;
 
    checkable: true;
-   checked: backendValue === undefined ? false : backendValue.value;
-     onToggled: {
-         backendValue.value = checked;
-     }
+   checked: (backendValue === undefined || backendValue === null) ? false : backendValue.value;
+   onToggled: {
+       backendValue.value = checked;
+   }
 
    onBaseStateFlagChanged: {
        evaluate();

share/qtcreator/qmldesigner/propertyeditor/Qt/DoubleSpinBox.qml

@@ -10,7 +10,7 @@ QWidget { //This is a special DoubleSpinBox that does color coding for states
     property alias minimum: box.minimum
     property alias maximum: box.maximum
     property alias text: label.text
-    property bool enabled
+    property bool enabled: true
 
     minimumHeight: 22;
 
@@ -57,6 +57,7 @@ QWidget { //This is a special DoubleSpinBox that does color coding for states
             font.bold: true;
             alignment: "Qt::AlignRight | Qt::AlignVCenter"
             maximumWidth: 80
+            visible: DoubleSpinBox.text != "";
         }
 
         QDoubleSpinBox {
@@ -65,11 +66,11 @@ QWidget { //This is a special DoubleSpinBox that does color coding for states
             keyboardTracking: false;
             enabled: (DoubleSpinBox.backendValue === undefined ||
                       DoubleSpinBox.backendValue === null)
-            ? false : !backendValue.isBound && DoubleSpinBox.enabled;
+            ? true : !backendValue.isBound && DoubleSpinBox.enabled;
 
             property bool readingFromBackend: false;
             property real valueFromBackend: (DoubleSpinBox.backendValue === undefined ||
-                                             DoubleSpinBox.backendValue === null)
+                                             DoubleSpinBox.backendValue === null || DoubleSpinBox.backendValue.value === undefined)
             ? .0 : DoubleSpinBox.backendValue.value;
             
             onValueFromBackendChanged: {
@@ -86,9 +87,7 @@ QWidget { //This is a special DoubleSpinBox that does color coding for states
             onMouseOverChanged: {
 
             }
-
         }
-
     }
 
     ExtendedFunctionButton {

share/qtcreator/qmldesigner/propertyeditor/Qt/Extended.qml

@@ -30,22 +30,18 @@ layout: VerticalLayout{
                      "DropShadow"
                  ] }
 
-                 onCurrentTextChanged: {
-				      
-					  print("currentTextChanged before dirty");
+                 onCurrentTextChanged: {				      
 					  
                       if (dirty) //avoid recursion;
                          return;
-						 
-						 print("currentTextChanged");
+
 						 
                       if (backendValues.effect.complexNode.exists)
                              backendValues.effect.complexNode.remove();
                      if (currentText == "None") {
-					     print("none");
                          ;
                      } else if (backendValues.effect.complexNode != null) {
-					     print("add");
+
                          backendValues.effect.complexNode.add("Qt/" + currentText);
                      }
                  }

share/qtcreator/qmldesigner/propertyeditor/Qt/LineEdit.qml

@@ -18,7 +18,6 @@ QWidget {
         text: backendValue.value
 
         onTextEdited: {
-            print("text edited")
             backendValue.value = text
         }
 

share/qtcreator/qmldesigner/propertyeditor/Qt/SpinBox.qml

@@ -47,7 +47,8 @@ QWidget { //This is a special SpinBox that does color coding for states
             id: box;
             enabled: backendValue === undefined || backendValue.isBound === undefined || backendValue.isBound === null ? false : !backendValue.isBound
             property bool readingFromBackend: false;
-            property int valueFromBackend: SpinBox.backendValue == null ? .0 : SpinBox.backendValue.value;
+            property int valueFromBackend: (SpinBox.backendValue === undefined || SpinBox.backendValue == null)
+            ? .0 : SpinBox.backendValue.value;
 
             onValueFromBackendChanged: {
                 readingFromBackend = true;