Add WindowBuilder propertysheet code. See README.txt for details.

This reverts commit b33fa4c8ce6b3d2c10eaa92c5c26019d7326bd4c.

Change-Id: I763357c42f933a52eda9b52988b785e092eac424

1 files changed, 221 insertions, 0 deletions

diff --git a/propertysheet/src/org/eclipse/wb/internal/core/utils/ui/dialogs/ResizableDialog.java b/propertysheet/src/org/eclipse/wb/internal/core/utils/ui/dialogs/ResizableDialog.java
new file mode 100644
index 0000000..307c2f6
--- /dev/null
+++ b/propertysheet/src/org/eclipse/wb/internal/core/utils/ui/dialogs/ResizableDialog.java
@@ -0,0 +1,221 @@
+/*******************************************************************************
+ * 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.utils.ui.dialogs;
+
+import org.eclipse.jface.dialogs.Dialog;
+import org.eclipse.jface.dialogs.IDialogSettings;
+import org.eclipse.swt.SWT;
+import org.eclipse.swt.events.ControlEvent;
+import org.eclipse.swt.events.ControlListener;
+import org.eclipse.swt.graphics.Point;
+import org.eclipse.swt.graphics.Rectangle;
+import org.eclipse.swt.widgets.Shell;
+import org.eclipse.ui.plugin.AbstractUIPlugin;
+
+/**
+ * {@link Dialog} that remembers location/size between usage sessions.
+ * 
+ * @author scheglov_ke
+ * @coverage core.ui
+ */
+public abstract class ResizableDialog extends Dialog {
+  /**
+   * Key for accessing {@link Dialog} from its {@link Shell}.
+   */
+  public static final String KEY_DIALOG = "KEY_DIALOG";
+  ////////////////////////////////////////////////////////////////////////////
+  //
+  // Internal constants
+  //
+  ////////////////////////////////////////////////////////////////////////////
+  private static final String X = "x";
+  private static final String Y = "y";
+  private static final String WIDTH = "width";
+  private static final String HEIGHT = "height";
+  ////////////////////////////////////////////////////////////////////////////
+  //
+  // Instance fields
+  //
+  ////////////////////////////////////////////////////////////////////////////
+  private final AbstractUIPlugin m_plugin;
+
+  ////////////////////////////////////////////////////////////////////////////
+  //
+  // Constructor
+  //
+  ////////////////////////////////////////////////////////////////////////////
+  public ResizableDialog(Shell parentShell, AbstractUIPlugin plugin) {
+    super(parentShell);
+    m_plugin = plugin;
+    setShellStyle(getShellStyle() | SWT.RESIZE | SWT.MAX);
+  }
+
+  ////////////////////////////////////////////////////////////////////////////
+  //
+  // Size
+  //
+  ////////////////////////////////////////////////////////////////////////////
+  @Override
+  protected Point getInitialSize() {
+    // track the current dialog bounds
+    installDialogBoundsTracker();
+    // answer the size from the previous incarnation
+    Point defaultSize = getDefaultSize();
+    if ((getShellStyle() & SWT.RESIZE) != 0) {
+      Rectangle oldBounds = loadBounds();
+      if (oldBounds != null) {
+        Rectangle displayBounds = getShell().getDisplay().getBounds();
+        int width = Math.min(displayBounds.width, Math.max(oldBounds.width, defaultSize.x));
+        int height = Math.min(displayBounds.height, Math.max(oldBounds.height, defaultSize.y));
+        return new Point(width, height);
+      }
+    }
+    // use default size
+    return defaultSize;
+  }
+
+  /**
+   * @return the default size of dialog.
+   */
+  protected Point getDefaultSize() {
+    return super.getInitialSize();
+  }
+
+  ////////////////////////////////////////////////////////////////////////////
+  //
+  // Location
+  //
+  ////////////////////////////////////////////////////////////////////////////
+  @Override
+  protected Point getInitialLocation(Point initialSize) {
+    Rectangle windowBounds;
+    {
+      Shell windowShell = m_plugin.getWorkbench().getActiveWorkbenchWindow().getShell();
+      windowBounds = windowShell.getBounds();
+    }
+    // answer the location from the previous incarnation
+    Rectangle bounds = loadBounds();
+    if (bounds != null) {
+      int x = bounds.x;
+      int y = bounds.y;
+      int maxX = windowBounds.x + windowBounds.width - initialSize.x;
+      int maxY = windowBounds.y + windowBounds.height - initialSize.y;
+      if (x > maxX) {
+        x = maxX;
+      }
+      if (y > maxY) {
+        y = maxY;
+      }
+      if (x < windowBounds.x) {
+        x = windowBounds.x;
+      }
+      if (y < windowBounds.y) {
+        y = windowBounds.y;
+      }
+      return new Point(x, y);
+    }
+    // default location - centered on workbench window
+    int x = windowBounds.x + (windowBounds.width - initialSize.x) / 2;
+    int y = windowBounds.y + (windowBounds.height - initialSize.y) / 2;
+    return new Point(x, y);
+  }
+
+  ////////////////////////////////////////////////////////////////////////////
+  //
+  // Bounds
+  //
+  ////////////////////////////////////////////////////////////////////////////
+  /**
+   * Loads bounds from {@link IDialogSettings}.
+   */
+  private Rectangle loadBounds() {
+    IDialogSettings settings = getDialogSettings();
+    try {
+      return new Rectangle(settings.getInt(X),
+          settings.getInt(Y),
+          settings.getInt(WIDTH),
+          settings.getInt(HEIGHT));
+    } catch (NumberFormatException e) {
+      return null;
+    }
+  }
+
+  /**
+   * Saves bounds to {@link IDialogSettings}.
+   */
+  private void saveBounds(Rectangle bounds) {
+    IDialogSettings settings = getDialogSettings();
+    settings.put(X, bounds.x);
+    settings.put(Y, bounds.y);
+    settings.put(WIDTH, bounds.width);
+    settings.put(HEIGHT, bounds.height);
+  }
+
+  /**
+   * @return the {@link IDialogSettings} for this dialog with this type.
+   */
+  protected IDialogSettings getDialogSettings() {
+    IDialogSettings settings = m_plugin.getDialogSettings();
+    String sectionName = getDialogSettingsSectionName();
+    if (settings.getSection(sectionName) == null) {
+      return settings.addNewSection(sectionName);
+    }
+    return settings.getSection(sectionName);
+  }
+
+  /**
+   * @return the name of section for dialog specific bounds. By default uses name of {@link Class},
+   *         but if same dialog is used for displaying different content, then may be overridden.
+   */
+  protected String getDialogSettingsSectionName() {
+    return getClass().getName();
+  }
+
+  ////////////////////////////////////////////////////////////////////////////
+  //
+  // Size tracking
+  //
+  ////////////////////////////////////////////////////////////////////////////
+  protected Rectangle cachedBounds;
+
+  private void installDialogBoundsTracker() {
+    getShell().addControlListener(new ControlListener() {
+      public void controlMoved(ControlEvent e) {
+        cachedBounds = getShell().getBounds();
+      }
+
+      public void controlResized(ControlEvent e) {
+        cachedBounds = getShell().getBounds();
+      }
+    });
+  }
+
+  @Override
+  public boolean close() {
+    boolean shellMaximized = getShell().getMaximized();
+    boolean closed = super.close();
+    if (closed && !shellMaximized && cachedBounds != null) {
+      saveBounds(cachedBounds);
+    }
+    return closed;
+  }
+
+  ////////////////////////////////////////////////////////////////////////////
+  //
+  // Shell
+  //
+  ////////////////////////////////////////////////////////////////////////////
+  @Override
+  protected void configureShell(Shell newShell) {
+    super.configureShell(newShell);
+    newShell.setData(KEY_DIALOG, this);
+  }
+}