diff options
| -rw-r--r-- | tests/org.eclipse.swt.tests.gtk/ManualTests/org/eclipse/swt/tests/gtk/snippets/Bug552215_TreeFlickering_getClientArea.java | 118 |
1 files changed, 59 insertions, 59 deletions
diff --git a/tests/org.eclipse.swt.tests.gtk/ManualTests/org/eclipse/swt/tests/gtk/snippets/Bug552215_TreeFlickering_getClientArea.java b/tests/org.eclipse.swt.tests.gtk/ManualTests/org/eclipse/swt/tests/gtk/snippets/Bug552215_TreeFlickering_getClientArea.java index 2122490a01..12b93f6cdb 100644 --- a/tests/org.eclipse.swt.tests.gtk/ManualTests/org/eclipse/swt/tests/gtk/snippets/Bug552215_TreeFlickering_getClientArea.java +++ b/tests/org.eclipse.swt.tests.gtk/ManualTests/org/eclipse/swt/tests/gtk/snippets/Bug552215_TreeFlickering_getClientArea.java @@ -1,59 +1,59 @@ -/*******************************************************************************
- * Copyright (c) 2019 Syntevo 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:
- * Syntevo - initial API and implementation
- *******************************************************************************/
-package org.eclipse.swt.tests.gtk.snippets;
-
-import org.eclipse.swt.*;
-import org.eclipse.swt.layout.*;
-import org.eclipse.swt.widgets.*;
-
-public class Bug552215_TreeFlickering_getClientArea {
- public static void main(String[] args) {
- final Display display = new Display();
- final Shell shell = new Shell(display);
- shell.setLayout(new GridLayout());
-
- Label lblHint = new Label(shell, 0);
- lblHint.setText("Bug: Move mouse over Tree items => flickering");
-
- Tree tree = new Tree(shell, SWT.NONE);
- tree.setLayoutData(new GridData(GridData.FILL_HORIZONTAL | GridData.FILL_VERTICAL));
-
- // Countermeasures for Bug 550606
- tree.setHeaderVisible(true);
-
- // This is what causes flickering
- tree.addListener(SWT.EraseItem, event -> {
- tree.getClientArea();
- });
-
- // First paint must be with no items to trigger 'Tree.gtk_draw' code from Bug 541427
- display.timerExec(1000, () -> {
- for (int i = 0; i < 20; i++) {
- final TreeItem rootNode = new TreeItem(tree, SWT.NONE);
- rootNode.setText("node " + i);
- }
- });
-
- shell.setSize(400, 600);
- shell.open();
-
- while (!shell.isDisposed()) {
- if (!display.readAndDispatch()) {
- display.sleep();
- }
- }
-
- display.dispose();
- }
-}
+/******************************************************************************* + * Copyright (c) 2019 Syntevo 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: + * Syntevo - initial API and implementation + *******************************************************************************/ +package org.eclipse.swt.tests.gtk.snippets; + +import org.eclipse.swt.*; +import org.eclipse.swt.layout.*; +import org.eclipse.swt.widgets.*; + +public class Bug552215_TreeFlickering_getClientArea { + public static void main(String[] args) { + final Display display = new Display(); + final Shell shell = new Shell(display); + shell.setLayout(new GridLayout()); + + Label lblHint = new Label(shell, 0); + lblHint.setText("Bug: Move mouse over Tree items => flickering"); + + Tree tree = new Tree(shell, SWT.NONE); + tree.setLayoutData(new GridData(GridData.FILL_HORIZONTAL | GridData.FILL_VERTICAL)); + + // Countermeasures for Bug 550606 + tree.setHeaderVisible(true); + + // This is what causes flickering + tree.addListener(SWT.EraseItem, event -> { + tree.getClientArea(); + }); + + // First paint must be with no items to trigger 'Tree.gtk_draw' code from Bug 541427 + display.timerExec(1000, () -> { + for (int i = 0; i < 20; i++) { + final TreeItem rootNode = new TreeItem(tree, SWT.NONE); + rootNode.setText("node " + i); + } + }); + + shell.setSize(400, 600); + shell.open(); + + while (!shell.isDisposed()) { + if (!display.readAndDispatch()) { + display.sleep(); + } + } + + display.dispose(); + } +} |