X-Git-Url: http://secure.phpeclipse.com

diff --git a/net.sourceforge.phpeclipse/src/net/sourceforge/phpdt/internal/ui/util/SWTUtil.java b/net.sourceforge.phpeclipse/src/net/sourceforge/phpdt/internal/ui/util/SWTUtil.java
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+/*******************************************************************************
+ * Copyright (c) 2000, 2004 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials 
+ * are made available under the terms of the Common Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/cpl-v10.html
+ * 
+ * Contributors:
+ *     IBM Corporation - initial API and implementation
+ *******************************************************************************/
+package net.sourceforge.phpdt.internal.ui.util;
+
+import org.eclipse.jface.dialogs.IDialogConstants;
+import org.eclipse.jface.resource.JFaceResources;
+//incastrix
+//import org.eclipse.jface.text.Assert;
+import org.eclipse.core.runtime.Assert;
+import org.eclipse.swt.SWT;
+import org.eclipse.swt.dnd.DragSource;
+import org.eclipse.swt.dnd.DropTarget;
+import org.eclipse.swt.layout.GridData;
+import org.eclipse.swt.widgets.Button;
+import org.eclipse.swt.widgets.Caret;
+import org.eclipse.swt.widgets.Control;
+import org.eclipse.swt.widgets.Display;
+import org.eclipse.swt.widgets.Menu;
+import org.eclipse.swt.widgets.ScrollBar;
+import org.eclipse.swt.widgets.Shell;
+import org.eclipse.swt.widgets.Table;
+import org.eclipse.swt.widgets.Widget;
+
+/**
+ * Utility class to simplify access to some SWT resources.
+ */
+public class SWTUtil {
+
+	/**
+	 * Returns the standard display to be used. The method first checks, if the
+	 * thread calling this method has an associated disaply. If so, this display
+	 * is returned. Otherwise the method returns the default display.
+	 */
+	public static Display getStandardDisplay() {
+		Display display;
+		display = Display.getCurrent();
+		if (display == null)
+			display = Display.getDefault();
+		return display;
+	}
+
+	/**
+	 * Returns the shell for the given widget. If the widget doesn't represent a
+	 * SWT object that manage a shell, <code>null</code> is returned.
+	 * 
+	 * @return the shell for the given widget
+	 */
+	public static Shell getShell(Widget widget) {
+		if (widget instanceof Control)
+			return ((Control) widget).getShell();
+		if (widget instanceof Caret)
+			return ((Caret) widget).getParent().getShell();
+		if (widget instanceof DragSource)
+			return ((DragSource) widget).getControl().getShell();
+		if (widget instanceof DropTarget)
+			return ((DropTarget) widget).getControl().getShell();
+		if (widget instanceof Menu)
+			return ((Menu) widget).getParent().getShell();
+		if (widget instanceof ScrollBar)
+			return ((ScrollBar) widget).getParent().getShell();
+
+		return null;
+	}
+
+	/**
+	 * Returns a width hint for a button control.
+	 */
+	public static int getButtonWidthHint(Button button) {
+		button.setFont(JFaceResources.getDialogFont());
+		PixelConverter converter = new PixelConverter(button);
+		int widthHint = converter
+				.convertHorizontalDLUsToPixels(IDialogConstants.BUTTON_WIDTH);
+		return Math.max(widthHint, button.computeSize(SWT.DEFAULT, SWT.DEFAULT,
+				true).x);
+	}
+
+	/**
+	 * Returns a height hint for a button control.
+	 */
+	public static int getButtonHeightHint(Button button) {
+		button.setFont(JFaceResources.getDialogFont());
+		PixelConverter converter = new PixelConverter(button);
+		return converter
+				.convertVerticalDLUsToPixels(IDialogConstants.BUTTON_HEIGHT);
+	}
+
+	/**
+	 * Sets width and height hint for the button control. <b>Note:</b> This is
+	 * a NOP if the button's layout data is not an instance of
+	 * <code>GridData</code>.
+	 * 
+	 * @param button
+	 *            the button for which to set the dimension hint
+	 */
+	public static void setButtonDimensionHint(Button button) {
+		Assert.isNotNull(button);
+		Object gd = button.getLayoutData();
+		if (gd instanceof GridData) {
+			((GridData) gd).heightHint = getButtonHeightHint(button);
+			((GridData) gd).widthHint = getButtonWidthHint(button);
+			((GridData) gd).horizontalAlignment = GridData.FILL;
+		}
+	}
+
+	public static int getTableHeightHint(Table table, int rows) {
+		if (table.getFont().equals(JFaceResources.getDefaultFont()))
+			table.setFont(JFaceResources.getDialogFont());
+		int result = table.getItemHeight() * rows + table.getHeaderHeight();
+		if (table.getLinesVisible())
+			result += table.getGridLineWidth() * (rows - 1);
+		return result;
+	}
+
+}