Disable gizmo mode actions when the selected nodes don't allow them

UI/CBasicViewport.cpp

@@ -255,7 +255,8 @@ void CBasicViewport::ProcessInput()
     }
 
     if (IsKeyboardInputActive())
-        mCamera.ProcessKeyInput((EKeyInputs) mKeysPressed, DeltaTime);
+        if ((mKeysPressed & eCtrlKey) == 0)
+            mCamera.ProcessKeyInput((EKeyInputs) mKeysPressed, DeltaTime);
 
     // Update view info
     const CMatrix4f& View = mCamera.ViewMatrix();

UI/CWorldEditor.cpp

@@ -149,6 +149,26 @@ CGameArea* CWorldEditor::ActiveArea()
 }
 
 // ************ UPDATE UI ************
+void CWorldEditor::UpdateStatusBar()
+{
+    // Would be cool to do more frequent status bar updates with more info. Unfortunately, this causes lag.
+    QString StatusText = "";
+
+    if (!mGizmoHovering)
+    {
+        if (ui->MainViewport->underMouse())
+        {
+            CSceneNode *pHoverNode = ui->MainViewport->HoverNode();
+
+            if (pHoverNode && (pHoverNode->NodeType() != eStaticNode))
+                StatusText = TO_QSTRING(pHoverNode->Name());
+        }
+    }
+
+    if (ui->statusbar->currentMessage() != StatusText)
+        ui->statusbar->showMessage(StatusText);
+}
+
 void CWorldEditor::UpdateGizmoUI()
 {
     // Update transform XYZ spin boxes
@@ -224,26 +244,6 @@ void CWorldEditor::UpdateSelectionUI()
     UpdateGizmoUI();
 }
 
-void CWorldEditor::UpdateStatusBar()
-{
-    // Would be cool to do more frequent status bar updates with more info. Unfortunately, this causes lag.
-    QString StatusText = "";
-
-    if (!mGizmoHovering)
-    {
-        if (ui->MainViewport->underMouse())
-        {
-            CSceneNode *pHoverNode = ui->MainViewport->HoverNode();
-
-            if (pHoverNode && (pHoverNode->NodeType() != eStaticNode))
-                StatusText = TO_QSTRING(pHoverNode->Name());
-        }
-    }
-
-    if (ui->statusbar->currentMessage() != StatusText)
-        ui->statusbar->showMessage(StatusText);
-}
-
 // ************ PROTECTED ************
 void CWorldEditor::GizmoModeChanged(CGizmo::EGizmoMode mode)
 {

UI/CWorldEditor.h

@@ -44,9 +44,11 @@ public:
     CGameArea* ActiveArea();
 
     // Update UI
+    void UpdateStatusBar();
+
+public slots:
     void UpdateGizmoUI();
     void UpdateSelectionUI();
-    void UpdateStatusBar();
 
 protected:
     void GizmoModeChanged(CGizmo::EGizmoMode mode);

UI/INodeEditor.cpp

@@ -49,6 +49,7 @@ INodeEditor::INodeEditor(QWidget *pParent)
     connect(mGizmoActions[2], SIGNAL(triggered()), this, SLOT(OnRotateTriggered()));
     connect(mGizmoActions[3], SIGNAL(triggered()), this, SLOT(OnScaleTriggered()));
     connect(mpTransformCombo, SIGNAL(currentIndexChanged(int)), this, SLOT(OnTransformSpaceChanged(int)));
+    connect(this, SIGNAL(SelectionModified()), this, SLOT(OnSelectionModified()));
 }
 
 INodeEditor::~INodeEditor()
@@ -134,24 +135,18 @@ void INodeEditor::SelectNode(CSceneNode *pNode)
 {
     if (!pNode->IsSelected())
         mUndoStack.push(new CSelectNodeCommand(this, pNode, mSelection));
-
-    emit SelectionModified();
 }
 
 void INodeEditor::DeselectNode(CSceneNode *pNode)
 {
     if (pNode->IsSelected())
         mUndoStack.push(new CDeselectNodeCommand(this, pNode, mSelection));
-
-    emit SelectionModified();
 }
 
 void INodeEditor::ClearSelection()
 {
     if (!mSelection.empty())
         mUndoStack.push(new CClearSelectionCommand(this, mSelection));
-
-    emit SelectionModified();
 }
 
 void INodeEditor::ClearAndSelectNode(CSceneNode *pNode)
@@ -169,8 +164,6 @@ void INodeEditor::ClearAndSelectNode(CSceneNode *pNode)
         mUndoStack.push(new CSelectNodeCommand(this, pNode, mSelection));
         mUndoStack.endMacro();
     }
-
-    emit SelectionModified();
 }
 
 // ************ PUBLIC SLOTS ************
@@ -204,6 +197,31 @@ void INodeEditor::OnGizmoMoved()
     UpdateGizmoUI();
 }
 
+// ************ PRIVATE ************
+void INodeEditor::UpdateTransformActionsEnabled()
+{
+    bool AllowTranslate = true, AllowRotate = true, AllowScale = true;
+    bool SelectedModeWasEnabled = mpGizmoGroup->checkedAction()->isEnabled();
+
+    for (auto it = mSelection.begin(); it != mSelection.end(); it++)
+    {
+        if (!(*it)->AllowsTranslate()) AllowTranslate = false;
+        if (!(*it)->AllowsRotate()) AllowRotate = false;
+        if (!(*it)->AllowsScale()) AllowScale = false;
+    }
+
+    mGizmoActions[1]->setEnabled(AllowTranslate);
+    mGizmoActions[2]->setEnabled(AllowRotate);
+    mGizmoActions[3]->setEnabled(AllowScale);
+
+    bool SelectedModeIsEnabled = mpGizmoGroup->checkedAction()->isEnabled();
+
+    if (SelectedModeWasEnabled && !SelectedModeIsEnabled)
+        OnSelectObjectsTriggered();
+    else if (SelectedModeIsEnabled && !SelectedModeWasEnabled)
+        mpGizmoGroup->checkedAction()->trigger();
+}
+
 // ************ PRIVATE SLOTS ************
 void INodeEditor::OnSelectObjectsTriggered()
 {
@@ -278,3 +296,9 @@ void INodeEditor::OnTransformSpaceChanged(int spaceIndex)
 
     mGizmo.SetTransformSpace(space);
 }
+
+void INodeEditor::OnSelectionModified()
+{
+    UpdateTransformActionsEnabled();
+    UpdateSelectionUI();
+}

UI/INodeEditor.h

@@ -57,25 +57,28 @@ public:
     void ClearSelection();
     void ClearAndSelectNode(CSceneNode *pNode);
 
-    virtual void UpdateGizmoUI() = 0;
-    virtual void UpdateSelectionUI() = 0;
-
 signals:
     void SelectionModified();
     void SelectionTransformed();
 
 public slots:
     void OnGizmoMoved();
+    virtual void UpdateGizmoUI() = 0;
+    virtual void UpdateSelectionUI() = 0;
 
 protected:
     virtual void GizmoModeChanged(CGizmo::EGizmoMode /*mode*/) {}
 
+private:
+    void UpdateTransformActionsEnabled();
+
 private slots:
     void OnSelectObjectsTriggered();
     void OnTranslateTriggered();
     void OnRotateTriggered();
     void OnScaleTriggered();
     void OnTransformSpaceChanged(int spaceIndex);
+    void OnSelectionModified();
 };
 
 #endif // INODEEDITOR_H

UI/undo/CClearSelectionCommand.cpp

@@ -27,7 +27,7 @@ void CClearSelectionCommand::undo()
     }
 
     mpEditor->RecalculateSelectionBounds();
-    mpEditor->UpdateSelectionUI();
+    mpEditor->SelectionModified();
 }
 
 void CClearSelectionCommand::redo()
@@ -38,5 +38,5 @@ void CClearSelectionCommand::redo()
 
     mpSelection->clear();
     mpEditor->RecalculateSelectionBounds();
-    mpEditor->UpdateSelectionUI();
+    mpEditor->SelectionModified();
 }

UI/undo/CDeselectNodeCommand.cpp

@@ -18,7 +18,7 @@ void CDeselectNodeCommand::undo()
     }
 
     mpEditor->ExpandSelectionBounds(mpNode);
-    mpEditor->UpdateSelectionUI();
+    mpEditor->SelectionModified();
 }
 
 void CDeselectNodeCommand::redo()
@@ -38,5 +38,5 @@ void CDeselectNodeCommand::redo()
     }
 
     mpEditor->RecalculateSelectionBounds();
-    mpEditor->UpdateSelectionUI();
+    mpEditor->SelectionModified();
 }

UI/undo/CSelectNodeCommand.cpp

@@ -26,7 +26,7 @@ void CSelectNodeCommand::undo()
     }
 
     mpEditor->RecalculateSelectionBounds();
-    mpEditor->UpdateSelectionUI();
+    mpEditor->SelectionModified();
 }
 
 void CSelectNodeCommand::redo()
@@ -38,5 +38,5 @@ void CSelectNodeCommand::redo()
     }
 
     mpEditor->ExpandSelectionBounds(mpNode);
-    mpEditor->UpdateSelectionUI();
+    mpEditor->SelectionModified();
 }