new custom draw snippets for Table

1 files changed, 86 insertions, 0 deletions

diff --git a/examples/org.eclipse.swt.snippets/src/org/eclipse/swt/snippets/Snippet230.java b/examples/org.eclipse.swt.snippets/src/org/eclipse/swt/snippets/Snippet230.java
new file mode 100644
index 0000000000..ee062dbbcd
--- /dev/null
+++ b/examples/org.eclipse.swt.snippets/src/org/eclipse/swt/snippets/Snippet230.java
@@ -0,0 +1,86 @@
+/*******************************************************************************
+ * Copyright (c) 2000, 2006 IBM Corporation and others.
+ * 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:
+ *     IBM Corporation - initial API and implementation
+ *******************************************************************************/
+package org.eclipse.swt.snippets;
+
+/* 
+ * Table example snippet: Images on the right hand side of a TableItem
+ *
+ * For a list of all SWT example snippets see
+ * http://www.eclipse.org/swt/snippets/
+ * 
+ * @since 3.2
+ */
+
+import org.eclipse.swt.*;
+import org.eclipse.swt.graphics.*;
+import org.eclipse.swt.layout.*;
+import org.eclipse.swt.widgets.*;
+
+public class Snippet230 {
+	
+public static void main(String [] args) {
+	Display display = new Display();
+	final Image image = display.getSystemImage(SWT.ICON_INFORMATION);
+	Shell shell = new Shell(display);
+	shell.setText("Images on the right side of the TableItem");
+	shell.setLayout(new FillLayout ());
+	Table table = new Table(shell, SWT.MULTI | SWT.FULL_SELECTION);
+	table.setHeaderVisible(true);
+	table.setLinesVisible(true);			
+	int columnCount = 3;
+	for (int i=0; i<columnCount; i++) {
+		TableColumn column = new TableColumn(table, SWT.NONE);
+		column.setText("Column " + i);	
+	}
+	int itemCount = 8;
+	for(int i = 0; i < itemCount; i++) {
+		TableItem item = new TableItem(table, SWT.NONE);
+		item.setText(new String[] {"item "+i+" a", "item "+i+" b", "item "+i+" c"});
+	}
+	/*
+	 * NOTE: MeasureItem, PaintItem and EraseItem are called repeatedly.
+	 * Therefore, it is critical for performance that these methods be
+	 * as efficient as possible.
+	 */
+	Listener paintListener = new Listener() {
+		public void handleEvent(Event event) {		
+			switch(event.type) {
+				case SWT.MeasureItem: {
+					Rectangle rect = image.getBounds();
+					event.width += rect.width;
+					event.height = Math.max(event.height, rect.height + 2);
+					break;
+				}
+				case SWT.PaintItem: {
+					int x = event.x + event.width;
+					Rectangle rect = image.getBounds();
+					int offset = Math.max(0, (event.height - rect.height) / 2);
+					event.gc.drawImage(image, x, event.y + offset);
+					break;
+				}
+			}
+		}
+	};		
+	table.addListener(SWT.MeasureItem, paintListener);
+	table.addListener(SWT.PaintItem, paintListener);		
+
+	for(int i = 0; i < columnCount; i++) {
+		table.getColumn(i).pack();
+	}	
+	shell.setSize(500, 200);
+	shell.open();
+	while(!shell.isDisposed ()) {
+		if(!display.readAndDispatch()) display.sleep();
+	}
+	if(image != null) image.dispose();
+	display.dispose();
+}
+}