Changeset 2655 for trunk/sources/HeuristicLab.Core.Views/3.3/VariableView.cs

Timestamp:

01/20/10 05:04:31 (14 years ago)

Author:

swagner

Message:

Committing first results of the refactoring of HeuristicLab.Core and related plugins (#95)

File:

• trunk/sources/HeuristicLab.Core.Views/3.3/VariableView.cs (modified) (4 diffs)

trunk/sources/HeuristicLab.Core.Views/3.3/VariableView.cs

@@ -31 +31 @@
 namespace HeuristicLab.Core.Views {
   /// <summary>
-  /// The visual representation of an <see cref="IVariable"/>.
+  /// The visual representation of a <see cref="Variable"/>.
   /// </summary>
   [Content(typeof(Variable), true)]
-  public partial class VariableView : ItemViewBase {
-    private ChooseItemDialog chooseItemDialog;
+  public partial class VariableView : NamedItemBaseView {
+    private TypeSelectorDialog typeSelectorDialog;
 
     /// <summary>
@@ -42 +42 @@
     /// <remarks>Uses property <see cref="ViewBase.Item"/> of base class <see cref="ViewBase"/>.
     /// No own data storage present.</remarks>
-    public IVariable Variable {
-      get { return (IVariable)Item; }
+    public Variable Variable {
+      get { return (Variable)Item; }
       set { base.Item = value; }
     }
@@ -59 +59 @@
     /// <remarks>Calls <see cref="VariableView()"/>.</remarks>
     /// <param name="variable">The variable to represent visually.</param>
-    public VariableView(IVariable variable)
+    public VariableView(Variable variable)
       : this() {
       Variable = variable;
@@ -68 +68 @@
     /// </summary>
     /// <remarks>Calls <see cref="ViewBase.RemoveItemEvents"/> of base class <see cref="ViewBase"/>.</remarks>
-    protected override void RemoveItemEvents() {
-      Variable.NameChanged -= new EventHandler(Variable_NameChanged);
+    protected override void DeregisterObjectEvents() {
       Variable.ValueChanged -= new EventHandler(Variable_ValueChanged);
-      base.RemoveItemEvents();
+      base.DeregisterObjectEvents();
     }
+
     /// <summary>
     /// Adds eventhandlers to the underlying <see cref="IVariable"/>.
     /// </summary>
     /// <remarks>Calls <see cref="ViewBase.AddItemEvents"/> of base class <see cref="ViewBase"/>.</remarks>
-    protected override void AddItemEvents() {
-      base.AddItemEvents();
-      Variable.NameChanged += new EventHandler(Variable_NameChanged);
+    protected override void RegisterObjectEvents() {
+      base.RegisterObjectEvents();
       Variable.ValueChanged += new EventHandler(Variable_ValueChanged);
     }
 
-    /// <summary>
-    /// Updates all controls with the latest data of the model.
-    /// </summary>
-    /// <remarks>Calls <see cref="ViewBase.UpdateControls"/> of base class <see cref="ViewBase"/>.</remarks>
-    protected override void UpdateControls() {
-      base.UpdateControls();
-      valueTextBox.Text = "-";
-      valueTextBox.Enabled = false;
-      editorGroupBox.Controls.Clear();
-      editorGroupBox.Enabled = false;
+    protected override void OnObjectChanged() {
+      base.OnObjectChanged();
       if (Variable == null) {
         Caption = "Variable";
-        nameTextBox.Enabled = false;
+        dataTypeTextBox.Text = "-";
+        dataTypeTextBox.Enabled = false;
+        setValueButton.Enabled = false;
+        clearValueButton.Enabled = false;
+        valueGroupBox.Enabled = false;
+        viewHost.Object = null;
       } else {
         Caption = Variable.Name + " (" + Variable.GetType().Name + ")";
-        nameTextBox.Text = Variable.Name;
-        nameTextBox.Enabled = true;
-        if (Variable.Value != null) {
-          valueTextBox.Text = Variable.Value.GetType().FullName;
-          valueTextBox.Enabled = true;
-          Control editor = (Control)MainFormManager.CreateDefaultView(Variable.Value);
-          if (editor != null) {
-            editorGroupBox.Controls.Add(editor);
-            editor.Dock = DockStyle.Fill;
-            editorGroupBox.Enabled = true;
-          }
-        }
+        dataTypeTextBox.Text = Variable.Value == null ? "-" : Variable.Value.GetType().FullName;
+        dataTypeTextBox.Enabled = Variable.Value != null;
+        setValueButton.Enabled = Variable.Value == null;
+        clearValueButton.Enabled = Variable.Value != null;
+        valueGroupBox.Enabled = true;
+        viewHost.Object = Variable.Value;
       }
     }
 
-    private void Variable_NameChanged(object sender, EventArgs e) {
-      UpdateText();
-    }
-    private void UpdateText() {
+    private void Variable_ValueChanged(object sender, EventArgs e) {
       if (InvokeRequired)
-        Invoke(new MethodInvoker(UpdateText));
-      else
-        nameTextBox.Text = Variable.Name;
-    }
-    private void Variable_ValueChanged(object sender, EventArgs e) {
-      Refresh();
+        Invoke(new EventHandler(Variable_ValueChanged), sender, e);
+      else {
+        dataTypeTextBox.Text = Variable.Value == null ? "-" : Variable.Value.GetType().FullName;
+        dataTypeTextBox.Enabled = Variable.Value != null;
+        setValueButton.Enabled = Variable.Value == null;
+        clearValueButton.Enabled = Variable.Value != null;
+        viewHost.Object = Variable.Value;
+      }
     }
 
-    private void nameTextBox_Validating(object sender, CancelEventArgs e) {
-      Variable.Name = nameTextBox.Text;
-
-      // check if variable name was set successfully
-      e.Cancel = Variable.Name != nameTextBox.Text;
+    private void setValueButton_Click(object sender, EventArgs e) {
+      if (typeSelectorDialog == null) {
+        typeSelectorDialog = new TypeSelectorDialog();
+        typeSelectorDialog.Caption = "Select Value Type";
+        typeSelectorDialog.TypeSelector.Configure(typeof(IItem), false, false);
+      }
+      if (typeSelectorDialog.ShowDialog(this) == DialogResult.OK) {
+        Variable.Value = (IItem)typeSelectorDialog.TypeSelector.CreateInstanceOfSelectedType();
+      }
     }
-
-    private void setVariableValueButton_Click(object sender, EventArgs e) {
-      if (chooseItemDialog == null) {
-        chooseItemDialog = new ChooseItemDialog();
-        chooseItemDialog.Caption = "Set Value";
+    private void clearValueButton_Click(object sender, EventArgs e) {
+      Variable.Value = null;
+    }
+    private void valuePanel_DragEnterOver(object sender, DragEventArgs e) {
+      e.Effect = DragDropEffects.None;
+      Type type = e.Data.GetData("Type") as Type;
+      if ((type != null) && (typeof(IItem).IsAssignableFrom(type))) {
+        if ((e.KeyState & 8) == 8) e.Effect = DragDropEffects.Copy;  // CTRL key
+        else if ((e.KeyState & 32) == 32) e.Effect = DragDropEffects.Move;  // ALT key
+        else e.Effect = DragDropEffects.Link;
       }
-      if (chooseItemDialog.ShowDialog(this) == DialogResult.OK)
-        Variable.Value = chooseItemDialog.Item;
+    }
+    private void valuePanel_DragDrop(object sender, DragEventArgs e) {
+      if (e.Effect != DragDropEffects.None) {
+        IItem item = e.Data.GetData("Value") as IItem;
+        if ((e.Effect & DragDropEffects.Copy) == DragDropEffects.Copy) item = (IItem)item.Clone();
+        Variable.Value = item;
+      }
     }
   }