// ###############################################################################
// ### M E T H O D S
// ###############################################################################
#region Methods
/// <summary> Alloc a color from the default colormap of the display's default screen. </summary>
/// <param name="colorname"> The color to alloc. <see cref="System.String"/> </param>
/// <returns> The color pixel on success, or the white pixel otherwise. <see cref="X11.TColor"/> </returns>
public TColor AllocColorFromDefaultColormap(string colorname)
{
IntPtr display = Xtlib.XtDisplay(_shell);
if (display == IntPtr.Zero)
{
return(TColor.FallbackWhite);
}
TInt scrnID = X11lib.XDefaultScreen(display);
return(X11lib.XAllocClosestNamedColor(display, X11lib.XDefaultColormap(display, scrnID), colorname));
}
// ###############################################################################
// ### M E T H O D S
// ###############################################################################
#region Methods
/// <summary> Load the icon from indicated path and set it as shell icon. </summary>
/// <returns> <c>true</c>, if icon was set, <c>false</c> otherwise. </returns>
/// <param name='iconPath'> The icon path. </param>
public bool SetShellIcon(string iconPath)
{
bool result = false;
if (_shell == IntPtr.Zero)
{
Console.WriteLine(CLASS_NAME + "::SetShellIcon() ERROR: Member attribute '_shell' null.");
return(result);
}
if (string.IsNullOrEmpty(iconPath))
{
Console.WriteLine(CLASS_NAME + "::SetShellIcon() ERROR: Paramerter 'iconPath' null or empty.");
return(result);
}
IntPtr display = Xtlib.XtDisplay(_shell);
IntPtr window = Xtlib.XtWindow(_shell);
TInt screenNumber = Xtlib.XDefaultScreen(display);
using (X11Graphic appIcon = new X11Graphic(display, (int)screenNumber, IntPtr.Zero, X11lib.XDefaultDepth(display, screenNumber), iconPath))
{
_appIconPixMap = appIcon.CreateIndependentGraphicPixmap(display, window);
_appMaskPixMap = appIcon.CreateIndependentMaskPixmap(display, window);
if (_appIconPixMap != IntPtr.Zero && _appMaskPixMap != IntPtr.Zero)
{
X11lib.XWMHints wmHints = new X11lib.XWMHints();
IntPtr wmAddr = X11lib.XAllocWMHints(ref wmHints);
wmHints.flags = X11lib.XWMHintMask.IconPixmapHint |
X11lib.XWMHintMask.IconPositionHint |
X11lib.XWMHintMask.IconMaskHint;
wmHints.icon_pixmap = _appIconPixMap;
wmHints.icon_mask = _appMaskPixMap;
wmHints.icon_x = 0;
wmHints.icon_y = 0;
X11lib.XSetWMHints(display, window, ref wmHints);
X11lib.XFree(wmAddr);
result = true;
}
else
{
Console.WriteLine(CLASS_NAME + "::SetShellIcon () ERROR: Can not create application icon.");
}
}
return(result);
}
/// <summary> Register a "delete window action" to application context, translate the "delete
/// window action", add/overwrite the shell widget's translation table and set windows manager
/// protocol hook for the shell widget. </summary>
/// <param name="appContext"> The application's context to register the action to.
/// <see cref="System.IntPtr"/> </param>
/// <param name="deleteWindowAction"> The action to register to the application's context.
/// <see cref="XtActionProc"/> </param>
/// <remarks> This must be done *** AFTER *** XtRealizeWidget (). </remarks>
public void RegisterDeleteWindowAction(IntPtr appContext, XtActionProc deleteWindowAction)
{
try
{
// Register (instance method) action procedure to runtime action marshaller
// and let it map the signal to the (global static) action procedure.
IntPtr deleteWindowActionPtr = ActionMarshaler.Add(_shell,
X11.XEventName.ClientMessage, deleteWindowAction);
// Create an actions record, to provide the application's context
// with a "action-name" to "action-procedure" translation.
XtActionsRec[] actionProcs = new XtActionsRec[] {
new XtActionsRec(X11Utils.StringToSByteArray(XtWmShell.DELETE_WINDOW_ACTION_NAME + "\0"),
deleteWindowActionPtr)
};
// Register the actions record to the application's context.
Xtlib.XtAppAddActions(appContext, actionProcs, (XCardinal)1);
// Create a compiled translation table, to provide the widget with
// a "message" to "action-name" translation.
IntPtr translationTable = Xtlib.XtParseTranslationTable("<Message>WM_PROTOCOLS: " +
XtWmShell.DELETE_WINDOW_ACTION_NAME + "()");
// Merge new translations to the widget, overriding existing ones.
Xtlib.XtOverrideTranslations(_shell, translationTable);
/// The delete message from the windows manager. Closing an app via window
/// title functionality doesn't generate a window message - it only generates a
/// window manager message, thot must be routed to the window (message loop).
IntPtr wmDeleteMessage = IntPtr.Zero;
// Hook the closing event from windows manager.
// Must be done *** AFTER *** XtRealizeWidget () to determine display and window!
wmDeleteMessage = X11lib.XInternAtom(Xtlib.XtDisplay(_shell), "WM_DELETE_WINDOW", false);
if (X11lib.XSetWMProtocols(Xtlib.XtDisplay(_shell), Xtlib.XtWindow(_shell),
ref wmDeleteMessage, (X11.TInt) 1) == 0)
{
Console.WriteLine(CLASS_NAME + "::RegisterDeleteWindowAction () " +
"WARNING: Failed to register 'WM_DELETE_WINDOW' event.");
}
}
catch (Exception e)
{
Console.WriteLine(e.Message);
Console.WriteLine(e.StackTrace);
}
}
// ###############################################################################
// ### A T T R I B U T E S
// ###############################################################################
#region Attributes
#endregion
// ###############################################################################
// ### C O N S T R U C T I O N A N D I N I T I A L I Z A T I O N
// ###############################################################################
#region Construction
/// <summary> The initializing constructor. </summary>
/// <param name="toplevelShell"> The toplevel shell that owns the underlaying transient popup shell of this dialog. <see cref="XtApplicationShell"/> </param>
/// <param name="toplevelShell"> The shell caption. <see cref="System.String"/> </param>
public XtGrabExclusiveAthenaDialog(XtApplicationShell toplevelShell, string caption)
: base(toplevelShell, caption)
{
if (toplevelShell == null)
{
throw new ArgumentNullException("toplevelShell");
}
// The dialog widget needs the final size of all child widgets during layout calculation to prevent child widget overlapping. Or in other words:
// Child widget overlapping will happen, if XtNicon is set after dialog widget's layout calculation, because XtMakeResizeRequest () can't be called.
// Currently the dialog widget isn't realized and therefor it hasn't a window. That's why we use the toplevel shell's window instead.
IntPtr logo = IntPtr.Zero;
if (!(Xtlib.XtIsRealized(toplevelShell.Shell) == (TBoolean)0))
{
IntPtr display = Xtlib.XtDisplay(toplevelShell.Shell);
IntPtr window = Xtlib.XtWindow(toplevelShell.Shell);
logo = X11lib.XCreateBitmapFromData(display, window, XtResources.BIG_EXCLAMATION_ICON_BITS,
XtResources.BIG_ICON_WIDTH, XtResources.BIG_ICON_HEIGHT);
}
Arg[] formArgs = { new Arg(XtNames.XtNlabel, X11.X11Utils.StringToSByteArray("Enter data string:\0")),
new Arg(XtNames.XtNvalue, X11.X11Utils.StringToSByteArray("\0")),
new Arg(XtNames.XtNicon, (XtArgVal)logo) };
_dialogForm = Xtlib.XtCreateManagedWidget(DIALOG_RESOURCE_NAME,
Xtlib.XawDialogWidgetClass(), _shell,
formArgs, (XCardinal)3);
Arg[] okArgs = { new Arg(XtNames.XtNlabel, X11.X11Utils.StringToSByteArray("OK\0")) };
_okCommand = Xtlib.XtCreateManagedWidget(_okCmdName,
Xtlib.XawCommandWidgetClass(), _dialogForm,
okArgs, (XCardinal)1);
Xtlib.XtAddCallback(_okCommand, XtNames.XtNcallback, CallBackMarshaler.Add(_okCommand, this.DialogOk), IntPtr.Zero);
Arg[] cancelArgs = { new Arg(XtNames.XtNlabel, X11.X11Utils.StringToSByteArray("Cancel\0")) };
_cancelCommand = Xtlib.XtCreateManagedWidget(_cancelCmdName,
Xtlib.XawCommandWidgetClass(), _dialogForm,
cancelArgs, (XCardinal)1);
Xtlib.XtAddCallback(_cancelCommand, XtNames.XtNcallback, CallBackMarshaler.Add(_cancelCommand, this.DialogCancel), IntPtr.Zero);
}
/// <summary> Dispose by parent. </summary>
public virtual void DisposeByParent()
{
// Memory and resources, that are assigned to underlaying Athena widget's
// instance structure (and thereby owned there) are destroyed by XtDestroyWidget ().
// This typically inclused the GCs, pixmaps and local copies of strings.
// They are typically assigned during XtCreateWidget () or XtSetValues ().
if (_shell != IntPtr.Zero)
{
IntPtr display = Xtlib.XtDisplay(_shell);
if (_appIconPixMap != IntPtr.Zero)
{
X11lib.XFreePixmap(display, _appIconPixMap);
}
if (_appMaskPixMap != IntPtr.Zero)
{
X11lib.XFreePixmap(display, _appMaskPixMap);
}
Xtlib.XtDestroyWidget(_shell);
_shell = IntPtr.Zero;
}
}
// ###############################################################################
// ### A T T R I B U T E S
// ###############################################################################
#region Attributes
#endregion
// ###############################################################################
// ### C O N S T R U C T I O N A N D I N I T I A L I Z A T I O N
// ###############################################################################
#region Construction
public XtGrabExclusiveMessageBox(XtApplicationShell toplevelShell, string message, string caption, DialogIcon icontype)
: base(toplevelShell, caption)
{
if (toplevelShell == null)
{
throw new ArgumentNullException("toplevelShell");
}
Arg[] formArgs = { new Arg(XtNames.XtNbackground, (XtArgVal)toplevelShell.AllocColorFromDefaultColormap(X11ColorNames.Gray80).P) };
_dialogForm = Xtlib.XtCreateManagedWidget(DIALOG_RESOURCE_NAME,
Xtlib.XawFormWidgetClass(), _shell,
formArgs, (XCardinal)1);
// The dialog widget needs the final size of all child widgets during layout calculation to prevent child widget overlapping. Or in other words:
// Child widget overlapping will happen, if XtNicon is set after dialog widget's layout calculation, because XtMakeResizeRequest () can't be called.
// Currently the dialog widget isn't realized and therefor it hasn't a window. That's why we use the toplevel shell's window instead.
IntPtr logo = IntPtr.Zero;
if (!(Xtlib.XtIsRealized(toplevelShell.Shell) == (TBoolean)0) && icontype != XtDialog.DialogIcon.None)
{
IntPtr display = Xtlib.XtDisplay(toplevelShell.Shell);
IntPtr window = Xtlib.XtWindow(toplevelShell.Shell);
if (icontype == DialogIcon.Information)
{
logo = X11lib.XCreateBitmapFromData(display, window, XtResources.BIG_INFORMATION_ICON_BITS,
XtResources.BIG_ICON_WIDTH, XtResources.BIG_ICON_HEIGHT);
}
else if (icontype == DialogIcon.Question)
{
logo = X11lib.XCreateBitmapFromData(display, window, XtResources.BIG_QUESTION_ICON_BITS,
XtResources.BIG_ICON_WIDTH, XtResources.BIG_ICON_HEIGHT);
}
else if (icontype == DialogIcon.Exclamation)
{
logo = X11lib.XCreateBitmapFromData(display, window, XtResources.BIG_EXCLAMATION_ICON_BITS,
XtResources.BIG_ICON_WIDTH, XtResources.BIG_ICON_HEIGHT);
}
else // if (icontype == DialogIcon.Stop)
{
logo = X11lib.XCreateBitmapFromData(display, window, XtResources.BIG_STOP_ICON_BITS,
XtResources.BIG_ICON_WIDTH, XtResources.BIG_ICON_HEIGHT);
}
}
Arg[] msgArgs = { new Arg(XtNames.XtNlabel, X11.X11Utils.StringToSByteArray(message + "\0")),
new Arg(XtNames.XtNbackground, (XtArgVal)toplevelShell.AllocColorFromDefaultColormap(X11ColorNames.Gray80).P),
new Arg(XtNames.XtNborderWidth, (XtArgVal)0),
new Arg(XtNames.XtNleftBitmap, (XtArgVal)logo) };
_messageLabel = Xtlib.XtCreateManagedWidget(_msgLblName,
Xtlib.XawLabelWidgetClass(), _dialogForm,
msgArgs, (XCardinal)4);
Arg[] okArgs = { new Arg(XtNames.XtNlabel, X11.X11Utils.StringToSByteArray("Yes\0")),
new Arg(XtNames.XtNfromVert, _messageLabel) };
_okCommand = Xtlib.XtCreateManagedWidget(_okCmdName,
Xtlib.XawCommandWidgetClass(), _dialogForm,
okArgs, (XCardinal)2);
Xtlib.XtAddCallback(_okCommand, XtNames.XtNcallback, CallBackMarshaler.Add(_okCommand, this.DialogOk), IntPtr.Zero);
Arg[] cancelArgs = { new Arg(XtNames.XtNlabel, X11.X11Utils.StringToSByteArray("No\0")),
new Arg(XtNames.XtNfromVert, _messageLabel),
new Arg(XtNames.XtNfromHoriz, _okCommand) };
_cancelCommand = Xtlib.XtCreateManagedWidget(_cancelCmdName,
Xtlib.XawCommandWidgetClass(), _dialogForm,
cancelArgs, (XCardinal)3);
Xtlib.XtAddCallback(_cancelCommand, XtNames.XtNcallback, CallBackMarshaler.Add(_cancelCommand, this.DialogCancel), IntPtr.Zero);
}
