public static void runInUI(@Nullable Shell shell, @NotNull Runnable runnable) {
final Display display =
shell == null || shell.isDisposed() ? Display.getDefault() : shell.getDisplay();
if (display.getThread() != Thread.currentThread()) {
display.syncExec(runnable);
} else {
runnable.run();
}
}
public static void main(String[] args) {
final Display display = new Display();
final Image image = new Image(display, 16, 16);
GC gc = new GC(image);
gc.setBackground(display.getSystemColor(SWT.COLOR_RED));
gc.fillRectangle(image.getBounds());
gc.dispose();
final Shell shell = new Shell(display);
shell.setText("Lazy Table");
shell.setLayout(new FillLayout());
final Table table = new Table(shell, SWT.BORDER | SWT.MULTI);
table.setSize(200, 200);
Thread thread =
new Thread() {
@Override
public void run() {
for (int i = 0; i < 20000; i++) {
if (table.isDisposed()) return;
final int[] index = new int[] {i};
display.syncExec(
() -> {
if (table.isDisposed()) return;
TableItem item = new TableItem(table, SWT.NONE);
item.setText("Table Item " + index[0]);
item.setImage(image);
});
}
}
};
thread.start();
shell.setSize(200, 200);
shell.open();
while (!shell.isDisposed()) {
if (!display.readAndDispatch()) display.sleep();
}
image.dispose();
display.dispose();
}
