/// <summary> Initialize local ressources for all constructors. </summary>
/// <param name="assignedPosition"> The position of the top left top corner assigned by the window manager (for shell widgets) or geometry management (by non-shell widgets). Passed as reference to avoid structure copy constructor calls. <see cref="TPoint"/> </param>
public void InitializeTransientShellResources(ref TPoint offset)
{
/* Get the colors black and white. */
TPixel black = X11lib.XBlackPixel(_display, _screenNumber); /* get color black */
TPixel white = X11lib.XWhitePixel(_display, _screenNumber); /* get color white */
/* Once the display is initialized, create the window.
* It will have the foreground white and background black */
_window = X11lib.XCreateSimpleWindow(_display, X11lib.XDefaultRootWindow(_display), (TInt)offset.X, (TInt)offset.Y, (TUint)_assignedSize.Width, (TUint)_assignedSize.Height, 0, 0, black);
if (_window == IntPtr.Zero)
{
Console.WriteLine(CLASS_NAME + "::InitializeTransientShellResources () ERROR. Can not create transient shell.");
return;
}
X11lib.XSelectInput(_display, _window,
EventMask.StructureNotifyMask | EventMask.ExposureMask |
EventMask.ButtonPressMask | EventMask.ButtonReleaseMask |
EventMask.EnterWindowMask | EventMask.LeaveWindowMask |
EventMask.PointerMotionMask | EventMask.FocusChangeMask |
EventMask.KeyPressMask | EventMask.KeyReleaseMask |
EventMask.SubstructureNotifyMask);
_hasOwnWindow = true;
/* Hook the closing event from windows manager. */
_wmDeleteMessage = X11lib.XInternAtom(_display, "WM_DELETE_WINDOW", false);
if (X11lib.XSetWMProtocols(_display, _window, ref _wmDeleteMessage, (X11.TInt) 1) == 0)
{
Console.WriteLine(CLASS_NAME + "::InitializeTransientShellResources () WARNING: Failed to register 'WM_DELETE_WINDOW' event.");
}
X11lib.XSetTransientForHint(_display, _window, Parent.Window);
/* Recreate the foreground Graphics Context with. */
if (_gc != IntPtr.Zero)
{
if (XrwApplicationSettings.VERBOSE_OUTPUT_TO_CONSOLE)
{
Console.WriteLine(CLASS_NAME + "::InitializeTransientShellResources () Replace the foreground GC.");
}
X11lib.XFreeGC(_display, _gc);
_gc = IntPtr.Zero;
}
_gc = X11lib.XCreateGC(_display, _window, 0, IntPtr.Zero);
X11lib.XSetForeground(_display, _gc, white);
}
/// <summary> Initialize an *** own *** window. </summary>
/// <remarks> Use thei initialization from XrwCore +++ inheridet +++ classes, that should act as a widget, not as a gadget. </remarks>
protected void InitializeOwnWindow()
{
// Create a *** own *** window and exchange the *** parent *** window against it.
_window = X11lib.XCreateSimpleWindow(_display, _window, (TInt)_assignedPosition.X, (TInt)_assignedPosition.Y, (TUint)_fixedSize.Width, (TUint)_fixedSize.Height, 0, 0, _backgroundColorPixel);
if (_window == IntPtr.Zero)
{
Console.WriteLine(CLASS_NAME + "::InitializeOwnWindow () ERROR. Can not create transient shell.");
throw new OperationCanceledException("Failed to create own window.");
}
X11lib.XSelectInput(_display, _window,
EventMask.ExposureMask | EventMask.ButtonPressMask | EventMask.ButtonReleaseMask |
EventMask.EnterWindowMask | EventMask.LeaveWindowMask | EventMask.PointerMotionMask |
EventMask.FocusChangeMask | EventMask.KeyPressMask |
EventMask.KeyReleaseMask | EventMask.SubstructureNotifyMask);
_hasOwnWindow = true;
}