Utils: Allow programmatically change of IntegerAspect

Using setValue() on an IntegerAspect only had a visual effect
if it happened before adding it to a layout.
If the aspect had been added already the value silently got
changed (internally) but this was never reflected on the
respective SpinBox.

Change-Id: I60297d9d38835842b3b02a36787c0a2001477427
Reviewed-by: David Schulz <david.schulz@qt.io>

src/libs/utils/aspects.cpp

@@ -1825,7 +1825,15 @@ qint64 IntegerAspect::value() const
 
 void IntegerAspect::setValue(qint64 value)
 {
-    BaseAspect::setValue(value);
+    if (BaseAspect::setValueQuietly(value)) {
+        if (d->m_spinBox)
+            d->m_spinBox->setValue(value);
+        //qDebug() << "SetValue: Changing" << labelText() << " to " << value;
+        emit changed();
+        //QTC_CHECK(!labelText().isEmpty());
+        emit valueChanged(value);
+        //qDebug() << "SetValue: Changed" << labelText() << " to " << value;
+    }
 }
 
 void IntegerAspect::setRange(qint64 min, qint64 max)

src/libs/utils/aspects.h

@@ -448,6 +448,9 @@ public:
 
     struct Data : BaseAspect::Data { qint64 value = 0; };
 
+signals:
+    void valueChanged(int newValue);
+
 private:
     std::unique_ptr<Internal::IntegerAspectPrivate> d;
 };