Attachment 285019 Details for Bug 569233 – Fixed snippet for perf testing

Fixed snippet for perf testing

Snippet367.java (text/plain), 9.04 KB, created by Alexandr Miloslavskiy

on 2020-12-10 20:31:19 EST

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Creator: Alexandr Miloslavskiy

Created: 2020-12-10 20:31:19 EST

Size: 9.04 KB

patch

obsolete

>import org.eclipse.swt.SWT;
>import org.eclipse.swt.graphics.Font;
>import org.eclipse.swt.graphics.FontData;
>import org.eclipse.swt.graphics.GC;
>import org.eclipse.swt.graphics.Image;
>import org.eclipse.swt.graphics.ImageData;
>import org.eclipse.swt.graphics.ImageDataProvider;
>import org.eclipse.swt.graphics.ImageFileNameProvider;
>import org.eclipse.swt.graphics.Point;
>import org.eclipse.swt.layout.GridData;
>import org.eclipse.swt.layout.GridLayout;
>import org.eclipse.swt.widgets.Button;
>import org.eclipse.swt.widgets.Canvas;
>import org.eclipse.swt.widgets.Composite;
>import org.eclipse.swt.widgets.Display;
>import org.eclipse.swt.widgets.Label;
>import org.eclipse.swt.widgets.Menu;
>import org.eclipse.swt.widgets.MenuItem;
>import org.eclipse.swt.widgets.Shell;
>
>import java.util.ArrayList;
>
>/**
> * Snippet to test the use of the DPI-aware Image constructors.
> * Work in progress in https://bugs.eclipse.org/399786
> * <p>
> * For a list of all SWT example snippets see
> * http://www.eclipse.org/swt/snippets/
> */
>public class Snippet367 {
>	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;
>
>	public static void main (String [] args) {
>
>		final ImageFileNameProvider filenameProvider = zoom -> {
>			switch (zoom) {
>			case 100:
>				return IMAGE_PATH_100;
>			case 150:
>				return IMAGE_PATH_150;
>			case 200:
>				return IMAGE_PATH_200;
>			default:
>				return null;
>			}
>		};
>		final ImageDataProvider imageDataProvider = zoom -> {
>			switch (zoom) {
>			case 100:
>				return new ImageData (IMAGE_PATH_100);
>			case 150:
>				return new ImageData (IMAGE_PATH_150);
>			case 200:
>				return new ImageData (IMAGE_PATH_200);
>			default:
>				return null;
>			}
>		};
>
>		final Display display = new Display ();
>
>		int numWarmupIters = 10;
>		int numIters = numWarmupIters + 200;
>		int totalTests = 0;
>		double totalElapsed = 0;
>
>		for (int iIter = 0; iIter < numIters; iIter++) {
>			long start = System.nanoTime ();
>			final Shell shell = new Shell (display, SWT.TOOL);
>			shell.setText("Snippet367");
>			shell.setLayout (new GridLayout (3, false));
>
>			Menu menuBar = new Menu(shell, SWT.BAR);
>			shell.setMenuBar(menuBar);
>			MenuItem fileItem = new MenuItem(menuBar, SWT.CASCADE);
>			fileItem.setText("&File");
>			Menu fileMenu = new Menu(menuBar);
>			fileItem.setMenu(fileMenu);
>			MenuItem exitItem = new MenuItem(fileMenu, SWT.PUSH);
>			exitItem.setText("&Exit");
>			exitItem.addListener(SWT.Selection, e -> shell.close());
>
>			new Label (shell, SWT.NONE).setText (IMAGE_200 + ":");
>			new Label (shell, SWT.NONE).setImage (trackImage(new Image (display, IMAGE_PATH_200)));
>			new Button(shell, SWT.PUSH).setImage (trackImage(new Image (display, IMAGE_PATH_200)));
>
>			new Label (shell, SWT.NONE).setText (IMAGE_150 + ":");
>			new Label (shell, SWT.NONE).setImage (trackImage(new Image (display, IMAGE_PATH_150)));
>			new Button(shell, SWT.NONE).setImage (trackImage(new Image (display, IMAGE_PATH_150)));
>
>			new Label (shell, SWT.NONE).setText (IMAGE_100 + ":");
>			new Label (shell, SWT.NONE).setImage (trackImage(new Image (display, IMAGE_PATH_100)));
>			new Button(shell, SWT.NONE).setImage (trackImage(new Image (display, IMAGE_PATH_100)));
>
>			createSeparator(shell);
>
>			new Label (shell, SWT.NONE).setText ("ImageFileNameProvider:");
>			new Label (shell, SWT.NONE).setImage (trackImage(new Image (display, filenameProvider)));
>			new Button(shell, SWT.NONE).setImage (trackImage(new Image (display, filenameProvider)));
>
>			new Label (shell, SWT.NONE).setText ("ImageDataProvider:");
>			new Label (shell, SWT.NONE).setImage (trackImage(new Image (display, imageDataProvider)));
>			new Button(shell, SWT.NONE).setImage (trackImage(new Image (display, imageDataProvider)));
>
>			createSeparator(shell);
>
>			new Label (shell, SWT.NONE).setText ("1. Canvas\n(PaintListener)");
>			final Point size = new Point (550, 40);
>			final Canvas canvas = new Canvas (shell, SWT.NONE);
>			canvas.addPaintListener (e -> {
>				Point size1 = canvas.getSize ();
>				paintImage (e.gc, size1);
>			});
>			GridData gridData = new GridData (size.x, size.y);
>			gridData.horizontalSpan = 2;
>			canvas.setLayoutData (gridData);
>
>			createSeparator(shell);
>
>			new Label (shell, SWT.NONE).setText ("2. Painted image\n (default resolution)");
>			Image image = trackImage(new Image (display, size.x, size.y));
>			GC gc = new GC (image);
>			try {
>				paintImage (gc, size);
>			} finally {
>				gc.dispose ();
>			}
>			Label imageLabel = new Label (shell, SWT.NONE);
>			imageLabel.setImage (image);
>			imageLabel.setLayoutData (new GridData (SWT.BEGINNING, SWT.BEGINNING, false, false, 2, 1));
>
>			createSeparator(shell);
>
>			new Label (shell, SWT.NONE).setText ("3. Painted image\n(multi-res, unzoomed paint)");
>			imageLabel = new Label (shell, SWT.NONE);
>			imageLabel.setImage (trackImage(new Image (display, (ImageDataProvider) zoom -> {
>				Image temp = new Image (display, size.x * zoom / 100, size.y * zoom / 100);
>				GC gc1 = new GC (temp);
>				try {
>					paintImage (gc1, size);
>					return temp.getImageData ();
>				} finally {
>					gc1.dispose ();
>					temp.dispose ();
>				}
>			})));
>			imageLabel.setLayoutData (new GridData (SWT.BEGINNING, SWT.BEGINNING, false, false, 2, 1));
>
>			createSeparator(shell);
>
>			new Label (shell, SWT.NONE).setText ("4. Painted image\n(multi-res, zoomed paint)");
>			imageLabel = new Label (shell, SWT.NONE);
>			imageLabel.setImage (trackImage(new Image (display, (ImageDataProvider) zoom -> {
>				Image temp = new Image (display, size.x * zoom / 100, size.y * zoom / 100);
>				GC gc1 = new GC (temp);
>				try {
>					paintImage2 (gc1, new Point (size.x * zoom / 100, size.y * zoom / 100), zoom / 100);
>					return temp.getImageData ();
>				} finally {
>					gc1.dispose ();
>					temp.dispose ();
>				}
>			})));
>			imageLabel.setLayoutData (new GridData (SWT.BEGINNING, SWT.BEGINNING, false, false, 2, 1));
>
>			createSeparator(shell);
>
>			new Label (shell, SWT.NONE).setText ("5. 50x50 box\n(Display#getDPI(): " + display.getDPI().x + ")");
>			Label box= new Label (shell, SWT.NONE);
>			box.setBackground(display.getSystemColor(SWT.COLOR_WIDGET_DARK_SHADOW));
>			box.setLayoutData (new GridData (50, 50));
>
>			shell.pack ();
>			shell.open ();
>
>			long end = System.nanoTime ();
>			double elapsed = (end - start) / 1000000000.0;
>
>			if (iIter < numWarmupIters)
>				System.out.format ("#*** Time=%.2fsec Avg=(warming up)%n", elapsed);
>			else {
>				totalElapsed += elapsed;
>				totalTests++;
>				System.out.format ("#%03d Time=%.2fsec Avg=%.2f%n", totalTests, elapsed, totalElapsed / totalTests);
>			}
>
>			shell.dispose ();
>			disposeAllImages();
>			System.gc();
>		}
>
>		display.dispose();
>	}
>
>	private static ArrayList<Image> trackedImages = new ArrayList<>();
>	private static Image trackImage(Image image) {
>		trackedImages.add (image);
>		return image;
>	}
>
>	private static void disposeAllImages() {
>		for (Image image : trackedImages) {
>			image.dispose ();
>		}
>
>		trackedImages.clear ();
>	}
>
>	private static void createSeparator(Composite shell) {
>		new Label (shell, SWT.SEPARATOR | SWT.HORIZONTAL).setLayoutData (new GridData (SWT.FILL, SWT.FILL, true, false, 3, 1));
>	}
>
>	private static void paintImage (GC gc, Point size) {
>		gc.setBackground (gc.getDevice ().getSystemColor (SWT.COLOR_WIDGET_BACKGROUND));
>		gc.fillRectangle (0, 0, size.x, size.y);
>
>		gc.setBackground (gc.getDevice ().getSystemColor (SWT.COLOR_LIST_SELECTION));
>		gc.fillRoundRectangle (0, 0, size.x - 1, size.y - 1, 10, 10);
>
>		gc.setBackground (gc.getDevice ().getSystemColor (SWT.COLOR_WIDGET_BACKGROUND));
>		gc.drawRoundRectangle (0, 0, size.x - 1, size.y - 1, 10, 10);
>		gc.drawText (gc.getFont ().getFontData ()[0].toString (), 10, 10, true);
>	}
>
>	private static void paintImage2 (GC gc, Point size, int f) {
>		gc.setBackground (gc.getDevice ().getSystemColor (SWT.COLOR_WIDGET_BACKGROUND));
>		gc.fillRectangle (0, 0, size.x, size.y);
>
>		// Scale line width, corner roundness, and font size.
>		// Caveat: line width expands in all directions, so the origin also has to move.
>
>		gc.setBackground (gc.getDevice ().getSystemColor (SWT.COLOR_LIST_SELECTION));
>		gc.fillRoundRectangle (f/2, f/2, size.x - f, size.y - f, 10*f, 10*f);
>
>		gc.setBackground (gc.getDevice ().getSystemColor (SWT.COLOR_WIDGET_BACKGROUND));
>		gc.setLineWidth (f);
>		gc.drawRoundRectangle (f/2, f/2, size.x - f, size.y - f, 10*f, 10*f);
>		FontData fontData = gc.getFont ().getFontData ()[0];
>		fontData.setHeight (fontData.getHeight ()*f);
>		Font font = new Font (gc.getDevice (), fontData);
>		try {
>			gc.setFont (font);
>			gc.drawText (fontData.toString (), 10*f, 10*f, true);
>		} finally {
>			font.dispose ();
>		}
>	}
>}
>

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Attachments on bug 569233: 284917 | 285012 | 285019