original

[gb-231r1-is01/GB_2.3_IS01.git] / sdk / ddms / app / src / com / android / ddms / DropdownSelectionListener.java

diff --git a/sdk/ddms/app/src/com/android/ddms/DropdownSelectionListener.java b/sdk/ddms/app/src/com/android/ddms/DropdownSelectionListener.java
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+++ b/sdk/ddms/app/src/com/android/ddms/DropdownSelectionListener.java
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+/* //device/tools/ddms/src/com/android/ddms/DropdownSelectionListener.java
+**
+** Copyright 2007, The Android Open Source Project
+**
+** Licensed under the Apache License, Version 2.0 (the "License");
+** you may not use this file except in compliance with the License.
+** You may obtain a copy of the License at
+**
+**     http://www.apache.org/licenses/LICENSE-2.0
+**
+** Unless required by applicable law or agreed to in writing, software
+** distributed under the License is distributed on an "AS IS" BASIS,
+** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+** See the License for the specific language governing permissions and
+** limitations under the License.
+*/
+
+package com.android.ddms;
+
+import com.android.ddmlib.Log;
+
+import org.eclipse.swt.SWT;
+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.Menu;
+import org.eclipse.swt.widgets.MenuItem;
+import org.eclipse.swt.widgets.ToolItem;
+
+/**
+ * Helper class for drop-down menus in toolbars.
+ */
+public class DropdownSelectionListener extends SelectionAdapter {
+    private Menu mMenu;
+    private ToolItem mDropdown;
+
+    /**
+     * Basic constructor.  Creates an empty Menu to hold items.
+     */
+    public DropdownSelectionListener(ToolItem item) {
+        mDropdown = item;
+        mMenu = new Menu(item.getParent().getShell(), SWT.POP_UP);
+    }
+
+    /**
+     * Add an item to the dropdown menu.
+     */
+    public void add(String label) {
+        MenuItem item = new MenuItem(mMenu, SWT.NONE);
+        item.setText(label);
+        item.addSelectionListener(new SelectionAdapter() {
+            @Override
+            public void widgetSelected(SelectionEvent e) {
+                // update the dropdown's text to match the selection
+                MenuItem sel = (MenuItem) e.widget;
+                mDropdown.setText(sel.getText());
+            }
+        });
+    }
+
+    /**
+     * Invoked when dropdown or neighboring arrow is clicked.
+     */
+    @Override
+    public void widgetSelected(SelectionEvent e) {
+        if (e.detail == SWT.ARROW) {
+            // arrow clicked, show menu
+            ToolItem item = (ToolItem) e.widget;
+            Rectangle rect = item.getBounds();
+            Point pt = item.getParent().toDisplay(new Point(rect.x, rect.y));
+            mMenu.setLocation(pt.x, pt.y + rect.height);
+            mMenu.setVisible(true);
+        } else {
+            // button clicked
+            Log.d("ddms", mDropdown.getText() + " Pressed");
+        }
+    }
+}
+