1 files changed, 153 insertions, 0 deletions
diff --git a/propertysheet/src/org/eclipse/wb/internal/core/model/property/editor/AbstractComboPropertyEditor.java b/propertysheet/src/org/eclipse/wb/internal/core/model/property/editor/AbstractComboPropertyEditor.java
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index 0000000..a225f45
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+++ b/propertysheet/src/org/eclipse/wb/internal/core/model/property/editor/AbstractComboPropertyEditor.java
@@ -0,0 +1,153 @@
+/*******************************************************************************
+ * Copyright (c) 2011 Google, Inc.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *    Google, Inc. - initial API and implementation
+ *******************************************************************************/
+package org.eclipse.wb.internal.core.model.property.editor;
+
+import org.eclipse.wb.core.controls.CCombo3;
+import org.eclipse.wb.internal.core.model.property.Property;
+import org.eclipse.wb.internal.core.model.property.table.PropertyTable;
+
+import org.eclipse.swt.SWT;
+import org.eclipse.swt.events.FocusAdapter;
+import org.eclipse.swt.events.FocusEvent;
+import org.eclipse.swt.events.MouseAdapter;
+import org.eclipse.swt.events.MouseEvent;
+import org.eclipse.swt.events.SelectionAdapter;
+import org.eclipse.swt.events.SelectionEvent;
+import org.eclipse.swt.graphics.Point;
+import org.eclipse.swt.graphics.Rectangle;
+import org.eclipse.swt.widgets.Event;
+import org.eclipse.swt.widgets.Listener;
+
+/**
+ * The {@link PropertyEditor} for selecting single value using {@link CCombo3}.
+ * 
+ * @author scheglov_ke
+ * @coverage core.model.property.editor
+ */
+public abstract class AbstractComboPropertyEditor extends TextDisplayPropertyEditor {
+  ////////////////////////////////////////////////////////////////////////////
+  //
+  // Editing
+  //
+  ////////////////////////////////////////////////////////////////////////////
+  private CCombo3 m_combo;
+  private boolean m_doDropDown;
+
+  @Override
+  public boolean activate(final PropertyTable propertyTable, final Property property, Point location)
+      throws Exception {
+    // create combo
+    {
+      m_combo = new CCombo3(propertyTable, SWT.NONE);
+      m_doDropDown = true;
+      // add items
+      addItems(property, m_combo);
+      // select item
+      selectItem(property, m_combo);
+    }
+    // add listeners
+    m_combo.addFocusListener(new FocusAdapter() {
+      @Override
+      public void focusLost(FocusEvent e) {
+        propertyTable.deactivateEditor(true);
+      }
+    });
+    m_combo.addSelectionListener(new SelectionAdapter() {
+      @Override
+      public void widgetSelected(SelectionEvent e) {
+        int index = m_combo.getSelectionIndex();
+        toProperty(propertyTable, property, index);
+      }
+    });
+    m_combo.addListener(SWT.KeyDown, new Listener() {
+      public void handleEvent(Event event) {
+        switch (event.keyCode) {
+          case SWT.ESC :
+            propertyTable.deactivateEditor(false);
+            break;
+          case SWT.DEL :
+            try {
+              property.setValue(Property.UNKNOWN_VALUE);
+              event.doit = false;
+              selectItem(property, m_combo);
+            } catch (Throwable e) {
+              propertyTable.handleException(e);
+              propertyTable.deactivateEditor(false);
+            }
+            m_combo.doDropDown(false);
+            break;
+        }
+      }
+    });
+    m_combo.addMouseListener(new MouseAdapter() {
+      @Override
+      public void mouseDoubleClick(MouseEvent e) {
+        int index = (m_combo.getSelectionIndex() + 1) % m_combo.getItemCount();
+        toProperty(propertyTable, property, index);
+      }
+    });
+    // keep editor active
+    return true;
+  }
+
+  @Override
+  public final void setBounds(Rectangle bounds) {
+    m_combo.setBounds(bounds);
+    // editor created without bounds, so activate it after first setBounds()
+    if (m_doDropDown) {
+      m_doDropDown = false;
+      m_combo.setFocus();
+      m_combo.doDropDown(true);
+      m_combo.startDrag();
+    }
+  }
+
+  @Override
+  public final void deactivate(PropertyTable propertyTable, Property property, boolean save) {
+    if (m_combo != null) {
+      m_combo.dispose();
+      m_combo = null;
+    }
+  }
+
+  ////////////////////////////////////////////////////////////////////////////
+  //
+  // Abstract methods
+  //
+  ////////////////////////////////////////////////////////////////////////////
+  /**
+   * Adds items to given {@link CCombo3}.
+   */
+  protected abstract void addItems(Property property, CCombo3 combo) throws Exception;
+
+  /**
+   * Selects current item in given {@link CCombo3}.
+   */
+  protected abstract void selectItem(Property property, CCombo3 combo) throws Exception;
+
+  /**
+   * Transfers data from widget to {@link Property}.
+   */
+  protected abstract void toPropertyEx(Property property, CCombo3 combo, int index)
+      throws Exception;
+
+  /**
+   * Transfers data from widget to {@link Property}.
+   */
+  private void toProperty(PropertyTable propertyTable, Property property, int index) {
+    try {
+      toPropertyEx(property, m_combo, index);
+    } catch (Throwable e) {
+      propertyTable.handleException(e);
+    }
+    propertyTable.deactivateEditor(false);
+  }
+}