Bug 529126: [Wayland][GTK3] Tree does not notify SWT.MouseDown listeners
Added bug snippet to reproduce the issue.
Change-Id: Ib4bfdab5fb2230ea7a33898af7db069704548216
Signed-off-by: Eric Williams <ericwill@redhat.com>
diff --git a/tests/org.eclipse.swt.tests.gtk/Bug Snippets/org/eclipse/swt/tests/gtk/snippets/Bug529126_TreeMouseDown.java b/tests/org.eclipse.swt.tests.gtk/Bug Snippets/org/eclipse/swt/tests/gtk/snippets/Bug529126_TreeMouseDown.java
new file mode 100644
index 0000000..dece34c
--- /dev/null
+++ b/tests/org.eclipse.swt.tests.gtk/Bug Snippets/org/eclipse/swt/tests/gtk/snippets/Bug529126_TreeMouseDown.java
@@ -0,0 +1,134 @@
+package org.eclipse.swt.tests.gtk.snippets;
+
+import org.eclipse.swt.SWT;
+import org.eclipse.swt.graphics.Color;
+import org.eclipse.swt.graphics.GC;
+import org.eclipse.swt.graphics.Rectangle;
+import org.eclipse.swt.graphics.Region;
+import org.eclipse.swt.layout.FillLayout;
+import org.eclipse.swt.widgets.Display;
+import org.eclipse.swt.widgets.Shell;
+import org.eclipse.swt.widgets.Tree;
+import org.eclipse.swt.widgets.TreeColumn;
+import org.eclipse.swt.widgets.TreeItem;
+
+/*
+ * Title: Bug 529126: [Wayland][GTK3] Tree does not notify SWT.MouseDown listeners
+ * How to run: launch snippet and click on TreeItems
+ * Bug description: No output is printed to the console
+ * Expected results: Output with event info should be printed to the console for each
+ * mouse down.
+ * GTK Version(s): GTK3 (Wayland only)
+ */
+public class Bug529126_TreeMouseDown {
+
+ // Static =================================================================
+
+ public static void main(String[] args) {
+ final Display display = new Display();
+ final Shell shell = new Shell(display);
+ shell.setText("Custom gradient selection for Tree");
+ shell.setLayout(new FillLayout());
+ final Tree tree = new Tree(shell, SWT.MULTI | SWT.FULL_SELECTION | SWT.VIRTUAL);
+ tree.setHeaderVisible(true);
+ tree.setLinesVisible(true);
+ final int columnCount = 4;
+ for (int i = 0; i < columnCount; i++) {
+ final TreeColumn column = new TreeColumn(tree, SWT.NONE);
+ column.setText("Column " + i);
+ }
+
+ final int itemCount = 5;
+ for (int i = 0; i < itemCount; i++) {
+ final TreeItem item1 = new TreeItem(tree, SWT.NONE);
+
+ for (int j = 0; j < i; j++) {
+ final TreeItem item2 = new TreeItem(item1, SWT.NONE);
+
+ for (int k = 0; k < j; k++) {
+ new TreeItem(item2, SWT.NONE);
+ }
+ }
+ }
+
+ tree.addListener(SWT.SetData, event -> {
+ final TreeItem item = (TreeItem)event.item;
+
+ final TreeItem parentItem = item.getParentItem();
+ final String text;
+
+ if (parentItem != null) {
+ final String parentText = (String)parentItem.getData();
+ text = parentText + event.index + "/";
+ }
+ else {
+ text = "/";
+ }
+
+ item.setData(text);
+ });
+
+ tree.addListener(SWT.PaintItem, event -> {
+ final TreeItem item = (TreeItem)event.item;
+ final String text = (String)item.getData();
+ event.gc.drawText(text + " [" + event.index + "]", event.x, event.y, true);
+ });
+
+ /*
+ * NOTE: MeasureItem, PaintItem and EraseItem are called repeatedly.
+ * Therefore, it is critical for performance that these methods be
+ * as efficient as possible.
+ */
+ tree.addListener(SWT.EraseItem, event -> {
+ event.detail &= ~SWT.HOT;
+ if ((event.detail & SWT.SELECTED) != 0) {
+ final GC gc = event.gc;
+ final Rectangle area = tree.getClientArea();
+ /*
+ * If you wish to paint the selection beyond the end of
+ * last column, you must change the clipping region.
+ */
+ final int columnCount1 = tree.getColumnCount();
+ if (event.index == columnCount1 - 1 || columnCount1 == 0) {
+ final int width = area.x + area.width - event.x;
+ if (width > 0) {
+ final Region region = new Region();
+ gc.getClipping(region);
+ region.add(event.x, event.y, width, event.height);
+ gc.setClipping(region);
+ region.dispose();
+ }
+ }
+ gc.setAdvanced(true);
+ if (gc.getAdvanced()) {
+ gc.setAlpha(127);
+ }
+ final Rectangle rect = event.getBounds();
+ final Color foreground = gc.getForeground();
+ final Color background = gc.getBackground();
+ gc.setForeground(display.getSystemColor(SWT.COLOR_RED));
+ gc.setBackground(display.getSystemColor(SWT.COLOR_LIST_BACKGROUND));
+ gc.fillGradientRectangle(0, rect.y, 500, rect.height, false);
+ // restore colors for subsequent drawing
+ gc.setForeground(foreground);
+ gc.setBackground(background);
+ event.detail &= ~SWT.SELECTED;
+ }
+ });
+ tree.getColumn(0).setWidth(200);
+ for (int i = 1; i < columnCount; i++) {
+ tree.getColumn(i).pack();
+ }
+ tree.setSelection(tree.getItem(0));
+
+ tree.addListener(SWT.MouseDown, event -> System.out.println("event = " + event));
+ shell.setSize(500, 500);
+ shell.open();
+ while (!shell.isDisposed()) {
+ if (!display.readAndDispatch()) {
+ display.sleep();
+ }
+ }
+ display.dispose();
+ }
+}
