Attachment 279474 Details for Bug 549644 – MenuItemSnippet

MenuItemSnippet

SnippetMenuItemDispose.java (text/x-java), 2.41 KB, created by Patrick Tasse

on 2019-08-01 15:32:46 EDT

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Filename:

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Creator: Patrick Tasse

Created: 2019-08-01 15:32:46 EDT

Size: 2.41 KB

patch

obsolete

>
>import java.util.Arrays;
>
>import org.eclipse.swt.SWT;
>import org.eclipse.swt.layout.FillLayout;
>import org.eclipse.swt.widgets.Composite;
>import org.eclipse.swt.widgets.Display;
>import org.eclipse.swt.widgets.Group;
>import org.eclipse.swt.widgets.Menu;
>import org.eclipse.swt.widgets.MenuItem;
>import org.eclipse.swt.widgets.Shell;
>import org.eclipse.swt.widgets.TabFolder;
>import org.eclipse.swt.widgets.TabItem;
>
>public class SnippetMenuItemDispose {
>
>	private static final int NUM_ITERATIONS = 100;
>	private static final int NUM_TABS = 100;
>	private static final int NUM_MENU_ITEMS = 40;
>
>	public static void main(String[] args) {
>		Display display = new Display();
>		System.out.println("gtk version: " + System.getProperty("org.eclipse.swt.internal.gtk.version"));
>		System.out.println("SWT version: " + SWT.getVersion());
>		System.out.println();
>
>		for (int numTabs : Arrays.asList(0, NUM_TABS)) {
>			for (int numMenuItems : Arrays.asList(0, numTabs == 0 ? NUM_TABS * NUM_MENU_ITEMS : NUM_MENU_ITEMS)) {
>				for (int i = 1; i <= NUM_ITERATIONS; i++) {
>					final Shell shell = new Shell(display, SWT.SHELL_TRIM);
>					shell.setLayout(new FillLayout());
>					long t1 = System.currentTimeMillis();
>					Menu popup = new Menu(shell);
>					if (numTabs == 0) {
>						shell.setMenu(popup);
>						for (int k = 0; k < numMenuItems; k++) {
>							new MenuItem(popup, SWT.PUSH);
>						}
>					} else {
>						TabFolder tabFolder = new TabFolder(shell, SWT.NONE);
>						for (int j = 0; j < numTabs; j++) {
>							TabItem item = new TabItem(tabFolder, SWT.NONE);
>							item.setText(Integer.toString(j));
>							Composite composite = new Composite(tabFolder, SWT.NONE);
>							Group group = new Group(composite, SWT.NONE);
>							group.setMenu(popup);
>							for (int k = 0; k < numMenuItems; k++) {
>								new MenuItem(popup, SWT.PUSH);
>							}
>							item.setControl(composite);
>						}
>					}
>					long t2 = System.currentTimeMillis();
>					System.out.print(String.format("Shell%s with popup Menu with %d MenuItem [%3d]\tcreate %4d ms\t", numTabs == 0 ? "" : " with " + numTabs + " TabItem", numMenuItems, i, (t2-t1)));
>					long t3 = System.currentTimeMillis();
>					shell.dispose();
>					long t4 = System.currentTimeMillis();
>					System.out.print(String.format("dispose %4d ms\t", (t4-t3)));
>					for (int n = 0; n < (t4-t3); n+=10) {
>						System.out.print("=");
>					}
>					System.out.println();
>				}
>				System.out.println();
>			}
>		}
>		display.dispose();
>	}
>}

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Attachments on bug 549644: 279428 | 279462 | 279474