| /******************************************************************************* |
| * Copyright (c) 2018 Red Hat 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: |
| * Red Hat - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.swt.tests.gtk.snippets; |
| |
| |
| import org.eclipse.swt.SWT; |
| import org.eclipse.swt.custom.ControlEditor; |
| import org.eclipse.swt.custom.TableCursor; |
| import org.eclipse.swt.events.KeyAdapter; |
| import org.eclipse.swt.events.KeyEvent; |
| import org.eclipse.swt.events.SelectionAdapter; |
| import org.eclipse.swt.events.SelectionEvent; |
| import org.eclipse.swt.events.SelectionListener; |
| import org.eclipse.swt.graphics.Font; |
| import org.eclipse.swt.layout.GridData; |
| import org.eclipse.swt.layout.GridLayout; |
| import org.eclipse.swt.widgets.Display; |
| import org.eclipse.swt.widgets.ScrollBar; |
| import org.eclipse.swt.widgets.Shell; |
| import org.eclipse.swt.widgets.Table; |
| import org.eclipse.swt.widgets.TableColumn; |
| import org.eclipse.swt.widgets.TableItem; |
| import org.eclipse.swt.widgets.Text; |
| |
| /* |
| * Created on Sep 22, 2004 |
| * |
| * TODO To change the template for this generated file go to |
| * Window - Preferences - Java - Code Style - Code Templates |
| */ |
| |
| /** |
| * @author jcalder |
| * |
| * TODO To change the template for this generated type comment go to |
| * Window - Preferences - Java - Code Style - Code Templates |
| */ |
| public class Bug74739_TableTopIndex { |
| |
| public static void main(String[] args) { |
| Display display = new Display(); |
| Shell shell = new Shell(display); |
| shell.setLayout(new GridLayout()); |
| |
| Font font = new Font(display, "Courier", 10, SWT.NORMAL); |
| |
| // create a a widget.table with 3 columns and fill with data |
| final Table table = new Table(shell, SWT.BORDER | SWT.MULTI | SWT.FULL_SELECTION); |
| |
| table.setFont(font); |
| |
| table.setLayoutData(new GridData(GridData.FILL_BOTH)); |
| TableColumn column1 = new TableColumn(table, SWT.NONE); |
| TableColumn column2 = new TableColumn(table, SWT.NONE); |
| TableColumn column3 = new TableColumn(table, SWT.NONE); |
| for (int i = 0; i < 500; i++) { |
| TableItem item = new TableItem(table, SWT.NONE); |
| item.setText(new String[] { "cell "+i+" 0", "cell "+i+" 1", "cell "+i+" 2"}); |
| } |
| column1.pack(); |
| column2.pack(); |
| column3.pack(); |
| |
| // create a TableCursor to navigate around the widget.table |
| final TableCursor cursor = new TableCursor(table, SWT.NONE); |
| // create an editor to edit the cell when the user hits "ENTER" |
| // while over a cell in the widget.table |
| final ControlEditor editor = new ControlEditor(cursor); |
| editor.grabHorizontal = true; |
| editor.grabVertical = true; |
| |
| cursor.addSelectionListener(new SelectionAdapter() { |
| // when the TableEditor is over a cell, select the corresponding row in |
| // the widget.table |
| @Override |
| public void widgetSelected(SelectionEvent e) { |
| table.setSelection(new TableItem[] {cursor.getRow()}); |
| } |
| // when the user hits "ENTER" in the TableCursor, pop up a widget.text editor so that |
| // they can change the widget.text of the cell |
| @Override |
| public void widgetDefaultSelected(SelectionEvent e){ |
| final Text text = new Text(cursor, SWT.NONE); |
| TableItem row = cursor.getRow(); |
| int column = cursor.getColumn(); |
| text.setText(row.getText(column)); |
| text.addKeyListener(new KeyAdapter() { |
| @Override |
| public void keyPressed(KeyEvent e) { |
| // close the widget.text editor and copy the data over |
| // when the user hits "ENTER" |
| if (e.character == SWT.CR) { |
| TableItem row = cursor.getRow(); |
| int column = cursor.getColumn(); |
| row.setText(column, text.getText()); |
| text.dispose(); |
| } |
| // close the widget.text editor when the user hits "ESC" |
| if (e.character == SWT.ESC) { |
| text.dispose(); |
| } |
| } |
| }); |
| editor.setEditor(text); |
| text.setFocus(); |
| } |
| }); |
| // Hide the TableCursor when the user hits the "MOD1" or "MOD2" key. |
| // This alows the user to select multiple items in the widget.table. |
| cursor.addKeyListener(new KeyAdapter() { |
| @Override |
| public void keyPressed(KeyEvent e) { |
| if (e.keyCode == SWT.MOD1 || |
| e.keyCode == SWT.MOD2 || |
| (e.stateMask & SWT.MOD1) != 0 || |
| (e.stateMask & SWT.MOD2) != 0) { |
| cursor.setVisible(false); |
| } |
| } |
| }); |
| // Show the TableCursor when the user releases the "MOD2" or "MOD1" key. |
| // This signals the end of the multiple selection task. |
| table.addKeyListener(new KeyAdapter() { |
| @Override |
| public void keyReleased(KeyEvent e) { |
| if (e.keyCode == SWT.MOD1 && (e.stateMask & SWT.MOD2) != 0) return; |
| if (e.keyCode == SWT.MOD2 && (e.stateMask & SWT.MOD1) != 0) return; |
| if (e.keyCode != SWT.MOD1 && (e.stateMask & SWT.MOD1) != 0) return; |
| if (e.keyCode != SWT.MOD2 && (e.stateMask & SWT.MOD2) != 0) return; |
| |
| TableItem[] selection = table.getSelection(); |
| TableItem row = (selection.length == 0) ? table.getItem(table.getTopIndex()) : selection[0]; |
| table.showItem(row); |
| cursor.setSelection(row, 0); |
| cursor.setVisible(true); |
| cursor.setFocus(); |
| } |
| }); |
| |
| |
| ScrollBar scrollBar = table.getVerticalBar(); |
| scrollBar.addSelectionListener(new SelectionListener(){ |
| |
| @Override |
| public void widgetSelected(SelectionEvent e) { |
| int tableIndex = table.getTopIndex(); |
| System.out.println("widget.table index is: " + tableIndex); |
| |
| } |
| |
| @Override |
| public void widgetDefaultSelected(SelectionEvent e) { |
| // TODO Auto-generated method stub |
| |
| }}); |
| |
| table.setTopIndex(20); |
| System.out.println("getTopIndex: " + table.getTopIndex()); |
| |
| shell.open(); |
| while (!shell.isDisposed()) { |
| if (!display.readAndDispatch()) |
| display.sleep(); |
| } |
| font.dispose(); |
| display.dispose(); |
| } |
| |
| |
| |
| |
| } |