114 lines
3.4 KiB
C++
114 lines
3.4 KiB
C++
/*
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*+SNOTICE
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*
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* $TOG: UIComponent.h /main/6 1998/01/29 15:18:31 mgreess $
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*
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* RESTRICTED CONFIDENTIAL INFORMATION:
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*
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* The information in this document is subject to special
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* restrictions in a confidential disclosure agreement between
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* HP, IBM, Sun, USL, SCO and Univel. Do not distribute this
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* document outside HP, IBM, Sun, USL, SCO, or Univel without
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* Sun's specific written approval. This document and all copies
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* and derivative works thereof must be returned or destroyed at
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* Sun's request.
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*
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* Copyright 1993 Sun Microsystems, Inc. All rights reserved.
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*
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*+ENOTICE
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*/
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///////////////////////////////////////////////////////////////////////////////
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//////////////////////////////////////////////////////////////////////////////
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// This example code is from the book:
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//
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// Object-Oriented Programming with C++ and OSF/Motif
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// by
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// Douglas Young
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// Prentice Hall, 1992
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// ISBN 0-13-630252-1
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//
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// Copyright 1991 by Prentice Hall
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// All Rights Reserved
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//
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// Permission to use, copy, modify, and distribute this software for
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// any purpose except publication and without fee is hereby granted, provided
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// that the above copyright notice appear in all copies of the software.
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///////////////////////////////////////////////////////////////////////////////
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//////////////////////////////////////////////////////////////////////////////
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///////////////////////////////////////////////////////////////
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// UIComponent.h: Base class for all C++/Motif UI components
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///////////////////////////////////////////////////////////////
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#ifndef UICOMPONENT_H
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#define UICOMPONENT_H
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#ifndef I_HAVE_NO_IDENT
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#endif
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#include <Xm/Xm.h>
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#include "BasicComponent.h"
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class UIComponent : public BasicComponent {
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private:
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// Interface between XmNdestroyCallback and this class
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static void widgetDestroyedCallback ( Widget,
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XtPointer,
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XtPointer );
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protected:
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//
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// Number of pending tasks.
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// UIComponents with pending tasks should not be terminated.
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// Used in Application and MainWindow classes to block termination.
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//
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int _numPendingTasks;
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// Protect constructor to prevent direct instantiation
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UIComponent ( const char * );
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void installDestroyHandler(); // Easy hook for derived classes
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// Called by widgetDestroyedCallback() if base widget is destroyed
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virtual void widgetDestroyed();
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#ifdef DEAD_WOOD
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// Loads component's default resources into database
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void setDefaultResources ( const Widget , const String *);
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#endif /* DEAD_WOOD */
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// Retrieve resources for this clsss from the resource manager
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void getResources ( const XtResourceList, const int );
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public:
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virtual ~UIComponent();
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// Manage the entire widget subtree represented
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// by this component. Overrides BasicComponent method
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virtual void manage();
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virtual void displayInCurrentWorkspace();
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virtual void displayInCurrentWorkspace(Widget);
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// Public access functions
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#ifdef CAN_INLINE_VIRTUALS
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virtual const char *const className() { return "UIComponent"; }
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#else
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virtual const char *const className();
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#endif
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//
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// Functions for registering and unregistering tasks
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// which will block termination.
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//
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void registerPendingTask() { _numPendingTasks++; }
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void unregisterPendingTask() { _numPendingTasks--; }
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};
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#endif
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