Examples with MouseTrackAdapter org.eclipse.swt.events.MouseTrackAdapter used on opensource projects

Example 16 with MouseTrackAdapter

use of org.eclipse.swt.events.MouseTrackAdapter in project archi by archimatetool.

the class EditPartTipHelper method hookShellListeners.

@Override
protected void hookShellListeners() {
    /*
         * If the cursor leaves the tip window, hide the tooltip and dispose of
         * its shell
         */
    getShell().addMouseTrackListener(new MouseTrackAdapter() {

        @Override
        public void mouseExit(MouseEvent e) {
            getShell().setCapture(false);
            dispose();
        }
    });
    /*
         * If the mouseExit listener does not get called, dispose of the shell
         * if the cursor is no longer in the tooltip. This occurs in the rare
         * case that a mouseEnter is not received on the tooltip when it
         * appears.
         */
    getShell().addMouseMoveListener(new MouseMoveListener() {

        @Override
        public void mouseMove(MouseEvent e) {
            Point eventPoint = getShell().toDisplay(new Point(e.x, e.y));
            if (!getShell().getBounds().contains(eventPoint)) {
                if (isShowing())
                    getShell().setCapture(false);
                dispose();
            }
        }
    });
    // window.
    if (shellListener == null) {
        shellListener = new ShellAdapter() {

            @Override
            public void shellDeactivated(ShellEvent event) {
                Display.getCurrent().asyncExec(new Runnable() {

                    @Override
                    public void run() {
                        Shell active = Display.getCurrent().getActiveShell();
                        if (getShell() == active || control.getShell() == active || getShell().isDisposed())
                            return;
                        if (isShowing())
                            getShell().setCapture(false);
                        dispose();
                    }
                });
            }
        };
        control.getShell().addShellListener(shellListener);
        getShell().addShellListener(shellListener);
    }
    /*
         * Workaround for GTK Bug - Control.setCapture(boolean) not implemented:
         * If the cursor is not over the shell when it is first painted, hide
         * the tooltip and dispose of the shell.
         */
    if (SWT.getPlatform().equals("gtk")) {
        // $NON-NLS-1$
        getShell().addPaintListener(new PaintListener() {

            @Override
            public void paintControl(PaintEvent event) {
                Point cursorLoc = Display.getCurrent().getCursorLocation();
                if (!getShell().getBounds().contains(cursorLoc)) {
                    // This must be run asynchronously. If not, other paint
                    // listeners may attempt to paint on a disposed control.
                    Display.getCurrent().asyncExec(new Runnable() {

                        @Override
                        public void run() {
                            if (isShowing())
                                getShell().setCapture(false);
                            dispose();
                        }
                    });
                }
            }
        });
    }
}