| /******************************************************************************* |
| * Copyright (c) 2007, 2016 IBM Corporation and others. |
| * |
| * This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License 2.0 |
| * which accompanies this distribution, and is available at |
| * https://www.eclipse.org/legal/epl-2.0/ |
| * |
| * SPDX-License-Identifier: EPL-2.0 |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.swt.snippets; |
| |
| /* |
| * Table example snippet: Draw left aligned icon, text and selection |
| * |
| * For more info on custom-drawing TableItem and TreeItem content see |
| * http://www.eclipse.org/articles/article.php?file=Article-CustomDrawingTableAndTreeItems/index.html |
| * |
| * For a list of all SWT example snippets see |
| * http://www.eclipse.org/swt/snippets/ |
| */ |
| |
| import org.eclipse.swt.*; |
| import org.eclipse.swt.graphics.*; |
| import org.eclipse.swt.layout.*; |
| import org.eclipse.swt.widgets.*; |
| |
| public class Snippet283 { |
| public static void main(String[] args) { |
| Display display = new Display(); |
| Image image = new Image (display, Snippet283.class.getResourceAsStream("eclipse.png")); |
| Shell shell = new Shell(display); |
| shell.setText("Snippet 283"); |
| shell.setLayout(new FillLayout()); |
| final Table table = new Table(shell, SWT.FULL_SELECTION); |
| for (int i = 0; i < 8; i++) { |
| TableItem item = new TableItem(table, SWT.NONE); |
| item.setText ("Item " + i + " with long text that scrolls."); |
| if (i % 2 == 1) item.setImage (image); |
| } |
| table.addListener(SWT.MouseDown, event -> { |
| Rectangle rect = table.getClientArea (); |
| Point point = new Point (event.x, event.y); |
| if (table.getItem(point) != null) return; |
| for (int i=table.getTopIndex (); i<table.getItemCount(); i++) { |
| TableItem item = table.getItem (i); |
| Rectangle itemRect = item.getBounds (); |
| if (!itemRect.intersects (rect)) return; |
| itemRect.x = rect.x; |
| itemRect.width = rect.width; |
| if (itemRect.contains (point)) { |
| table.setSelection (item); |
| Event selectionEvent = new Event (); |
| selectionEvent.item = item; |
| table.notifyListeners(SWT.Selection, selectionEvent); |
| return; |
| } |
| } |
| }); |
| /* |
| * NOTE: MeasureItem, PaintItem and EraseItem are called repeatedly. |
| * Therefore, it is critical for performance that these methods be |
| * as efficient as possible. |
| */ |
| table.addListener(SWT.EraseItem, event -> { |
| event.detail &= ~SWT.FOREGROUND; |
| String osName = System.getProperty("os.name"); |
| if (osName != null && osName.contains ("Windows")) { |
| if (osName.contains ("Vista") || osName.contains ("unknown")) { |
| return; |
| } |
| } |
| event.detail &= ~(SWT.FOREGROUND | SWT.SELECTED | SWT.HOT | SWT.FOCUSED); |
| GC gc = event.gc; |
| TableItem item = (TableItem)event.item; |
| Rectangle rect = table.getClientArea (); |
| Rectangle itemRect = item.getBounds (); |
| itemRect.x = rect.x; |
| itemRect.width = rect.width; |
| gc.setClipping ((Rectangle) null); |
| gc.fillRectangle (itemRect); |
| }); |
| table.addListener(SWT.PaintItem, event -> { |
| TableItem item = (TableItem)event.item; |
| GC gc = event.gc; |
| Image image1 = item.getImage (0); |
| String text = item.getText (0); |
| Point textExtent = gc.stringExtent (text); |
| Rectangle imageRect = item.getImageBounds(0); |
| Rectangle textRect = item.getTextBounds (0); |
| int textY = textRect.y + Math.max (0, (textRect.height - textExtent.y) / 2); |
| if (image1 == null) { |
| gc.drawString(text, imageRect.x, textY, true); |
| } else { |
| Rectangle imageExtent = image1.getBounds (); |
| int imageY = imageRect.y + Math.max (0, (imageRect.height - imageExtent.height) / 2); |
| gc.drawImage (image1, imageRect.x, imageY); |
| gc.drawString (text, textRect.x, textY, true); |
| } |
| }); |
| shell.pack(); |
| shell.open(); |
| while (!shell.isDisposed()) { |
| if (!display.readAndDispatch()) display.sleep(); |
| } |
| display.dispose(); |
| } |
| } |