Examples with X11GraphicsEnvironment sun.awt.X11GraphicsEnvironment used on opensource projects

Example 1 with X11GraphicsEnvironment

use of sun.awt.X11GraphicsEnvironment in project jdk8u_jdk by JetBrains.

the class XWindowPeer method collectJavaToplevels.

/*
     * Returns a Vector of all Java top-level windows,
     * sorted by their current Z-order
     */
static Vector<XWindowPeer> collectJavaToplevels() {
    Vector<XWindowPeer> javaToplevels = new Vector<XWindowPeer>();
    Vector<Long> v = new Vector<Long>();
    X11GraphicsEnvironment ge = (X11GraphicsEnvironment) GraphicsEnvironment.getLocalGraphicsEnvironment();
    GraphicsDevice[] gds = ge.getScreenDevices();
    if (!ge.runningXinerama() && (gds.length > 1)) {
        for (GraphicsDevice gd : gds) {
            int screen = ((X11GraphicsDevice) gd).getScreen();
            long rootWindow = XlibWrapper.RootWindow(XToolkit.getDisplay(), screen);
            v.add(rootWindow);
        }
    } else {
        v.add(XToolkit.getDefaultRootWindow());
    }
    final int windowsCount = windows.size();
    while ((v.size() > 0) && (javaToplevels.size() < windowsCount)) {
        long win = v.remove(0);
        XQueryTree qt = new XQueryTree(win);
        try {
            if (qt.execute() != 0) {
                int nchildren = qt.get_nchildren();
                long children = qt.get_children();
                // XQueryTree returns window children ordered by z-order
                for (int i = 0; i < nchildren; i++) {
                    long child = Native.getWindow(children, i);
                    XBaseWindow childWindow = XToolkit.windowToXWindow(child);
                    // filter out Java non-toplevels
                    if ((childWindow != null) && !(childWindow instanceof XWindowPeer)) {
                        continue;
                    } else {
                        v.add(child);
                    }
                    if (childWindow instanceof XWindowPeer) {
                        XWindowPeer np = (XWindowPeer) childWindow;
                        javaToplevels.add(np);
                        // XQueryTree returns windows sorted by their z-order. However,
                        // if WM has not handled transient for hint for a child window,
                        // it may appear in javaToplevels before its owner. Move such
                        // children after their owners.
                        int k = 0;
                        XWindowPeer toCheck = javaToplevels.get(k);
                        while (toCheck != np) {
                            XWindowPeer toCheckOwnerPeer = toCheck.getOwnerPeer();
                            if (toCheckOwnerPeer == np) {
                                javaToplevels.remove(k);
                                javaToplevels.add(toCheck);
                            } else {
                                k++;
                            }
                            toCheck = javaToplevels.get(k);
                        }
                    }
                }
            }
        } finally {
            qt.dispose();
        }
    }
    return javaToplevels;
}