examples/org.eclipse.swt.snippets/src/org/eclipse/swt/snippets/Snippet373.java - platform/eclipse.platform.swt - Git at Google

 package org.eclipse.swt.snippets;

 /*******************************************************************************
  * Copyright (c) 2018 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
  *******************************************************************************/

 import org.eclipse.swt.*;
 import org.eclipse.swt.custom.*;
 import org.eclipse.swt.events.*;
 /*
  * Snippet to display/refresh Monitor DPI dynamically if supported by OS.
  *
  * For a list of all SWT example snippets see
  * http://www.eclipse.org/swt/snippets/
  *
  * @since 3.0
  */
 import org.eclipse.swt.graphics.*;
 import org.eclipse.swt.internal.*;
 import org.eclipse.swt.layout.*;
 import org.eclipse.swt.widgets.*;

 /**
  * Dynamic DPI with restart example snippet Display current monitors zoom
  *
  * For a list of all SWT example snippets see
  * http://www.eclipse.org/swt/snippets/
  */
 public class Snippet373 {
 	private static final String IMAGE_100 = "eclipse16.png";
 	private static final String IMAGE_150 = "eclipse24.png";
 	private static final String IMAGE_200 = "eclipse32.png";

 	private static final String IMAGES_ROOT = "bin/org/eclipse/swt/snippets/";

 	private static final String IMAGE_PATH_100 = IMAGES_ROOT + IMAGE_100;
 	private static final String IMAGE_PATH_150 = IMAGES_ROOT + IMAGE_150;
 	private static final String IMAGE_PATH_200 = IMAGES_ROOT + IMAGE_200;
 	static final ImageFileNameProvider filenameProvider = zoom -> {
 		String path = null;
 		switch (zoom) {
 		case 150:
 			path = IMAGE_PATH_150;
 			break;
 		case 200:
 			path = IMAGE_PATH_200;
 			break;
 		default:
 			path = IMAGE_PATH_100;
 		}
 		return path;
 	};

 	@SuppressWarnings("restriction")
 	public static void main(String[] args) {
 		System.setProperty("swt.autoScale", "quarter");
 		Display display = new Display();
 		final Image eclipse = new Image(display, filenameProvider);
 		final Image eclipseToolBar1 = new Image(display, filenameProvider);
 		final Image eclipseToolBar2 = new Image(display, filenameProvider);
 		final Image eclipseTableHeader = new Image(display, filenameProvider);
 		final Image eclipseTableItem = new Image(display, filenameProvider);
 		final Image eclipseTree1 = new Image(display, filenameProvider);
 		final Image eclipseTree2 = new Image(display, filenameProvider);
 		final Image eclipseCTab1 = new Image(display, filenameProvider);
 		final Image eclipseCTab2 = new Image(display, filenameProvider);

 		Shell shell = new Shell(display);
 		shell.setText("Snippet 373");
 		shell.setImage(eclipse);
 		shell.setText("DynamicDPI @ " + DPIUtil.getDeviceZoom());
 		shell.setLayout(new RowLayout(SWT.VERTICAL));
 		shell.setLocation(100, 100);
 		shell.setSize(500, 600);
 		shell.addListener(SWT.ZoomChanged, new Listener() {
 			@Override
 			public void handleEvent(Event e) {
 				if (display.getPrimaryMonitor().equals(shell.getMonitor())) {
 					MessageBox box = new MessageBox(shell, SWT.PRIMARY_MODAL | SWT.OK | SWT.CANCEL);
 					box.setText(shell.getText());
 					box.setMessage("DPI changed, do you want to exit & restart ?");
 					e.doit = (box.open() == SWT.OK);
 					if (e.doit) {
 						shell.close();
 						System.out.println("Program exit.");
 					}
 				}
 			}
 		});

 		// Menu
 		Menu bar = new Menu(shell, SWT.BAR);
 		shell.setMenuBar(bar);
 		MenuItem fileItem = new MenuItem(bar, SWT.CASCADE);
 		fileItem.setText("&File");
 		fileItem.setImage(eclipse);
 		Menu submenu = new Menu(shell, SWT.DROP_DOWN);
 		fileItem.setMenu(submenu);
 		MenuItem subItem = new MenuItem(submenu, SWT.PUSH);
 		subItem.addListener(SWT.Selection, e -> System.out.println("Select All"));
 		subItem.setText("Select &All\tCtrl+A");
 		subItem.setAccelerator(SWT.MOD1 + 'A');
 		subItem.setImage(eclipse);

 		// CTabFolder
 		CTabFolder folder = new CTabFolder(shell, SWT.BORDER);
 		for (int i = 0; i < 2; i++) {
 			CTabItem cTabItem = new CTabItem(folder, i % 2 == 0 ? SWT.CLOSE : SWT.NONE);
 			cTabItem.setText("Item " + i);
 			Text textMsg = new Text(folder, SWT.MULTI);
 			textMsg.setText("Content for Item " + i);
 			cTabItem.setControl(textMsg);
 			cTabItem.setImage((i % 2 == 1) ? eclipseCTab1 : eclipseCTab2);
 		}

 		// PerMonitorV2 setting
 //		Label label = new Label (shell, SWT.BORDER);
 //		label.setText("PerMonitorV2 value before:after:Error");
 //		Text text = new Text(shell, SWT.BORDER);
 //		text.setText(DPIUtil.BEFORE + ":" + DPIUtil.AFTER + ":" + DPIUtil.RESULT);

 		// Composite for Label, Button, Tool-bar
 		Composite composite = new Composite(shell, SWT.BORDER);
 		composite.setLayout(new RowLayout(SWT.HORIZONTAL));

 		// Label with Image
 		Label label1 = new Label(composite, SWT.BORDER);
 		label1.setImage(eclipse);

 		// Label with text only
 		Label label2 = new Label(composite, SWT.BORDER);
 		label2.setText("No Image");

 		// Button with text + Old Image Constructor
 		Button oldButton1 = new Button(composite, SWT.PUSH);
 		oldButton1.setText("Old Img");
 		oldButton1.setImage(new Image(display, IMAGE_PATH_100));

 		// Button with Old Image Constructor
 //		Button oldButton2 = new Button(composite, SWT.PUSH);
 //		oldButton2.setImage(new Image(display, filenameProvider.getImagePath(100)));

 		// Button with Image
 		Button createDialog = new Button(composite, SWT.PUSH);
 		createDialog.setText("Child Dialog");
 		createDialog.setImage(eclipse);
 		createDialog.addSelectionListener(new SelectionAdapter() {

 			@Override
 			public void widgetSelected(SelectionEvent event) {
 				final Shell dialog = new Shell(shell, SWT.DIALOG_TRIM | SWT.RESIZE);
 				dialog.setText("Child Dialog");
 				RowLayout rowLayout = new RowLayout(SWT.VERTICAL);
 				dialog.setLayout(rowLayout);
 				Label label = new Label(dialog, SWT.BORDER);
 				label.setImage(eclipse);
 				Point location = shell.getLocation();
 				dialog.setLocation(location.x + 250, location.y + 50);
 				dialog.pack();
 				dialog.open();
 			}
 		});

 		// Toolbar with Image
 		ToolBar toolBar = new ToolBar(composite, SWT.FLAT | SWT.BORDER);
 		Rectangle clientArea = shell.getClientArea();
 		toolBar.setLocation(clientArea.x, clientArea.y);
 		for (int i = 0; i < 2; i++) {
 			int style = i % 2 == 1 ? SWT.DROP_DOWN : SWT.PUSH;
 			ToolItem toolItem = new ToolItem(toolBar, style);
 			toolItem.setImage((i % 2 == 0) ? eclipseToolBar1 : eclipseToolBar2);
 			toolItem.setEnabled(i % 2 == 0);
 		}
 		toolBar.pack();

 		Button button = new Button(shell, SWT.PUSH);
 		button.setText("Refresh-Current Monitor : Zoom");
 		Text text1 = new Text(shell, SWT.BORDER);
 		Monitor monitor = button.getMonitor();
 		text1.setText("" + monitor.getZoom());
 		button.addMouseListener(new MouseAdapter() {
 			@Override
 			public void mouseDown(MouseEvent e) {
 				Monitor monitor = button.getMonitor();
 				text1.setText("" + monitor.getZoom());
 			}
 		});
 		Button button2 = new Button(shell, SWT.PUSH);
 		button2.setText("Refresh-Both Monitors : Zoom");
 		Text text2 = new Text(shell, SWT.BORDER);
 		Monitor[] monitors = display.getMonitors();
 		StringBuilder text2String = new StringBuilder();
 		for (int i = 0; i < monitors.length; i++) {
 			text2String.append(monitors[i].getZoom() + (i < (monitors.length - 1) ? " - " : ""));
 		}
 		text2.setText(text2String.toString());
 		button2.addMouseListener(new MouseAdapter() {
 			@Override
 			public void mouseDown(MouseEvent e) {
 				Monitor[] monitors = display.getMonitors();
 				StringBuilder text2String = new StringBuilder();
 				for (int i = 0; i < monitors.length; i++) {
 					text2String.append(monitors[i].getZoom() + (i < (monitors.length - 1) ? " - " : ""));
 				}
 				text2.setText(text2String.toString());
 			}
 		});

 		// Table
 		Table table = new Table(shell, SWT.MULTI | SWT.BORDER | SWT.FULL_SELECTION);
 		table.setLinesVisible(true);
 		table.setHeaderVisible(true);
 		String titles[] = { "Title 1" };
 		for (int i = 0; i < titles.length; i++) {
 			TableColumn column = new TableColumn(table, SWT.NONE);
 			column.setText(titles[i]);
 			column.setImage(eclipseTableHeader);
 		}
 		for (int i = 0; i < 1; i++) {
 			TableItem item = new TableItem(table, SWT.NONE);
 			item.setText(0, "Data " + i);
 			item.setImage(0, eclipseTableItem);
 		}
 		for (int i = 0; i < titles.length; i++) {
 			table.getColumn(i).pack();
 		}

 		// Tree
 		final Tree tree = new Tree(shell, SWT.BORDER);
 		for (int i = 0; i < 1; i++) {
 			TreeItem iItem = new TreeItem(tree, 0);
 			iItem.setText("TreeItem (0) -" + i);
 			iItem.setImage(eclipseTree1);
 			TreeItem jItem = null;
 			for (int j = 0; j < 1; j++) {
 				jItem = new TreeItem(iItem, 0);
 				jItem.setText("TreeItem (1) -" + j);
 				jItem.setImage(eclipseTree2);
 				jItem.setExpanded(true);
 			}
 			tree.select(jItem);
 		}

 		// Shell Location
 		Monitor primary = display.getPrimaryMonitor();
 		Rectangle bounds = primary.getBounds();
 		Rectangle rect = shell.getBounds();
 		int x = bounds.x + (bounds.width - rect.width) / 2;
 		int y = bounds.y + (bounds.height - rect.height) / 2;
 		shell.setLocation(x, y);
 		shell.open();
 		while (!shell.isDisposed()) {
 			if (!display.readAndDispatch())
 				display.sleep();
 		}
 		display.dispose();
 	}
 }
	package org.eclipse.swt.snippets;

	/*******************************************************************************
	* Copyright (c) 2018 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
	*******************************************************************************/

	import org.eclipse.swt.*;
	import org.eclipse.swt.custom.*;
	import org.eclipse.swt.events.*;
	/*
	* Snippet to display/refresh Monitor DPI dynamically if supported by OS.
	*
	* For a list of all SWT example snippets see
	* http://www.eclipse.org/swt/snippets/
	*
	* @since 3.0
	*/
	import org.eclipse.swt.graphics.*;
	import org.eclipse.swt.internal.*;
	import org.eclipse.swt.layout.*;
	import org.eclipse.swt.widgets.*;

	/**
	* Dynamic DPI with restart example snippet Display current monitors zoom
	*
	* For a list of all SWT example snippets see
	* http://www.eclipse.org/swt/snippets/
	*/
	public class Snippet373 {
	private static final String IMAGE_100 = "eclipse16.png";
	private static final String IMAGE_150 = "eclipse24.png";
	private static final String IMAGE_200 = "eclipse32.png";

	private static final String IMAGES_ROOT = "bin/org/eclipse/swt/snippets/";

	private static final String IMAGE_PATH_100 = IMAGES_ROOT + IMAGE_100;
	private static final String IMAGE_PATH_150 = IMAGES_ROOT + IMAGE_150;
	private static final String IMAGE_PATH_200 = IMAGES_ROOT + IMAGE_200;
	static final ImageFileNameProvider filenameProvider = zoom -> {
	String path = null;
	switch (zoom) {
	case 150:
	path = IMAGE_PATH_150;
	break;
	case 200:
	path = IMAGE_PATH_200;
	break;
	default:
	path = IMAGE_PATH_100;
	}
	return path;
	};

	@SuppressWarnings("restriction")
	public static void main(String[] args) {
	System.setProperty("swt.autoScale", "quarter");
	Display display = new Display();
	final Image eclipse = new Image(display, filenameProvider);
	final Image eclipseToolBar1 = new Image(display, filenameProvider);
	final Image eclipseToolBar2 = new Image(display, filenameProvider);
	final Image eclipseTableHeader = new Image(display, filenameProvider);
	final Image eclipseTableItem = new Image(display, filenameProvider);
	final Image eclipseTree1 = new Image(display, filenameProvider);
	final Image eclipseTree2 = new Image(display, filenameProvider);
	final Image eclipseCTab1 = new Image(display, filenameProvider);
	final Image eclipseCTab2 = new Image(display, filenameProvider);

	Shell shell = new Shell(display);
	shell.setText("Snippet 373");
	shell.setImage(eclipse);
	shell.setText("DynamicDPI @ " + DPIUtil.getDeviceZoom());
	shell.setLayout(new RowLayout(SWT.VERTICAL));
	shell.setLocation(100, 100);
	shell.setSize(500, 600);
	shell.addListener(SWT.ZoomChanged, new Listener() {
	@Override
	public void handleEvent(Event e) {
	if (display.getPrimaryMonitor().equals(shell.getMonitor())) {
	MessageBox box = new MessageBox(shell, SWT.PRIMARY_MODAL \| SWT.OK \| SWT.CANCEL);
	box.setText(shell.getText());
	box.setMessage("DPI changed, do you want to exit & restart ?");
	e.doit = (box.open() == SWT.OK);
	if (e.doit) {
	shell.close();
	System.out.println("Program exit.");
	}
	}
	}
	});

	// Menu
	Menu bar = new Menu(shell, SWT.BAR);
	shell.setMenuBar(bar);
	MenuItem fileItem = new MenuItem(bar, SWT.CASCADE);
	fileItem.setText("&File");
	fileItem.setImage(eclipse);
	Menu submenu = new Menu(shell, SWT.DROP_DOWN);
	fileItem.setMenu(submenu);
	MenuItem subItem = new MenuItem(submenu, SWT.PUSH);
	subItem.addListener(SWT.Selection, e -> System.out.println("Select All"));
	subItem.setText("Select &All\tCtrl+A");
	subItem.setAccelerator(SWT.MOD1 + 'A');
	subItem.setImage(eclipse);

	// CTabFolder
	CTabFolder folder = new CTabFolder(shell, SWT.BORDER);
	for (int i = 0; i < 2; i++) {
	CTabItem cTabItem = new CTabItem(folder, i % 2 == 0 ? SWT.CLOSE : SWT.NONE);
	cTabItem.setText("Item " + i);
	Text textMsg = new Text(folder, SWT.MULTI);
	textMsg.setText("Content for Item " + i);
	cTabItem.setControl(textMsg);
	cTabItem.setImage((i % 2 == 1) ? eclipseCTab1 : eclipseCTab2);
	}

	// PerMonitorV2 setting
	// Label label = new Label (shell, SWT.BORDER);
	// label.setText("PerMonitorV2 value before:after:Error");
	// Text text = new Text(shell, SWT.BORDER);
	// text.setText(DPIUtil.BEFORE + ":" + DPIUtil.AFTER + ":" + DPIUtil.RESULT);

	// Composite for Label, Button, Tool-bar
	Composite composite = new Composite(shell, SWT.BORDER);
	composite.setLayout(new RowLayout(SWT.HORIZONTAL));

	// Label with Image
	Label label1 = new Label(composite, SWT.BORDER);
	label1.setImage(eclipse);

	// Label with text only
	Label label2 = new Label(composite, SWT.BORDER);
	label2.setText("No Image");

	// Button with text + Old Image Constructor
	Button oldButton1 = new Button(composite, SWT.PUSH);
	oldButton1.setText("Old Img");
	oldButton1.setImage(new Image(display, IMAGE_PATH_100));

	// Button with Old Image Constructor
	// Button oldButton2 = new Button(composite, SWT.PUSH);
	// oldButton2.setImage(new Image(display, filenameProvider.getImagePath(100)));

	// Button with Image
	Button createDialog = new Button(composite, SWT.PUSH);
	createDialog.setText("Child Dialog");
	createDialog.setImage(eclipse);
	createDialog.addSelectionListener(new SelectionAdapter() {

	@Override
	public void widgetSelected(SelectionEvent event) {
	final Shell dialog = new Shell(shell, SWT.DIALOG_TRIM \| SWT.RESIZE);
	dialog.setText("Child Dialog");
	RowLayout rowLayout = new RowLayout(SWT.VERTICAL);
	dialog.setLayout(rowLayout);
	Label label = new Label(dialog, SWT.BORDER);
	label.setImage(eclipse);
	Point location = shell.getLocation();
	dialog.setLocation(location.x + 250, location.y + 50);
	dialog.pack();
	dialog.open();
	}
	});

	// Toolbar with Image
	ToolBar toolBar = new ToolBar(composite, SWT.FLAT \| SWT.BORDER);
	Rectangle clientArea = shell.getClientArea();
	toolBar.setLocation(clientArea.x, clientArea.y);
	for (int i = 0; i < 2; i++) {
	int style = i % 2 == 1 ? SWT.DROP_DOWN : SWT.PUSH;
	ToolItem toolItem = new ToolItem(toolBar, style);
	toolItem.setImage((i % 2 == 0) ? eclipseToolBar1 : eclipseToolBar2);
	toolItem.setEnabled(i % 2 == 0);
	}
	toolBar.pack();

	Button button = new Button(shell, SWT.PUSH);
	button.setText("Refresh-Current Monitor : Zoom");
	Text text1 = new Text(shell, SWT.BORDER);
	Monitor monitor = button.getMonitor();
	text1.setText("" + monitor.getZoom());
	button.addMouseListener(new MouseAdapter() {
	@Override
	public void mouseDown(MouseEvent e) {
	Monitor monitor = button.getMonitor();
	text1.setText("" + monitor.getZoom());
	}
	});
	Button button2 = new Button(shell, SWT.PUSH);
	button2.setText("Refresh-Both Monitors : Zoom");
	Text text2 = new Text(shell, SWT.BORDER);
	Monitor[] monitors = display.getMonitors();
	StringBuilder text2String = new StringBuilder();
	for (int i = 0; i < monitors.length; i++) {
	text2String.append(monitors[i].getZoom() + (i < (monitors.length - 1) ? " - " : ""));
	}
	text2.setText(text2String.toString());
	button2.addMouseListener(new MouseAdapter() {
	@Override
	public void mouseDown(MouseEvent e) {
	Monitor[] monitors = display.getMonitors();
	StringBuilder text2String = new StringBuilder();
	for (int i = 0; i < monitors.length; i++) {
	text2String.append(monitors[i].getZoom() + (i < (monitors.length - 1) ? " - " : ""));
	}
	text2.setText(text2String.toString());
	}
	});

	// Table
	Table table = new Table(shell, SWT.MULTI \| SWT.BORDER \| SWT.FULL_SELECTION);
	table.setLinesVisible(true);
	table.setHeaderVisible(true);
	String titles[] = { "Title 1" };
	for (int i = 0; i < titles.length; i++) {
	TableColumn column = new TableColumn(table, SWT.NONE);
	column.setText(titles[i]);
	column.setImage(eclipseTableHeader);
	}
	for (int i = 0; i < 1; i++) {
	TableItem item = new TableItem(table, SWT.NONE);
	item.setText(0, "Data " + i);
	item.setImage(0, eclipseTableItem);
	}
	for (int i = 0; i < titles.length; i++) {
	table.getColumn(i).pack();
	}

	// Tree
	final Tree tree = new Tree(shell, SWT.BORDER);
	for (int i = 0; i < 1; i++) {
	TreeItem iItem = new TreeItem(tree, 0);
	iItem.setText("TreeItem (0) -" + i);
	iItem.setImage(eclipseTree1);
	TreeItem jItem = null;
	for (int j = 0; j < 1; j++) {
	jItem = new TreeItem(iItem, 0);
	jItem.setText("TreeItem (1) -" + j);
	jItem.setImage(eclipseTree2);
	jItem.setExpanded(true);
	}
	tree.select(jItem);
	}

	// Shell Location
	Monitor primary = display.getPrimaryMonitor();
	Rectangle bounds = primary.getBounds();
	Rectangle rect = shell.getBounds();
	int x = bounds.x + (bounds.width - rect.width) / 2;
	int y = bounds.y + (bounds.height - rect.height) / 2;
	shell.setLocation(x, y);
	shell.open();
	while (!shell.isDisposed()) {
	if (!display.readAndDispatch())
	display.sleep();
	}
	display.dispose();
	}
	}