/*************************************************************************
 *
 *  $RCSfile: XModel.idl,v $
 *
 *  $Revision: 1.4.18.2 $
 *
 *  last change: $Author: mi $ $Date: 2003/01/21 17:44:07 $
 *
 *  The Contents of this file are made available subject to the terms of
 *  either of the following licenses
 *
 *         - GNU Lesser General Public License Version 2.1
 *         - Sun Industry Standards Source License Version 1.1
 *
 *  Sun Microsystems Inc., October, 2000
 *
 *  GNU Lesser General Public License Version 2.1
 *  =============================================
 *  Copyright 2000 by Sun Microsystems, Inc.
 *  901 San Antonio Road, Palo Alto, CA 94303, USA
 *
 *  This library is free software; you can redistribute it and/or
 *  modify it under the terms of the GNU Lesser General Public
 *  License version 2.1, as published by the Free Software Foundation.
 *
 *  This library is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 *  Lesser General Public License for more details.
 *
 *  You should have received a copy of the GNU Lesser General Public
 *  License along with this library; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston,
 *  MA  02111-1307  USA
 *
 *
 *  Sun Industry Standards Source License Version 1.1
 *  =================================================
 *  The contents of this file are subject to the Sun Industry Standards
 *  Source License Version 1.1 (the "License"); You may not use this file
 *  except in compliance with the License. You may obtain a copy of the
 *  License at http://www.openoffice.org/license.html.
 *
 *  Software provided under this License is provided on an "AS IS" basis,
 *  WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING,
 *  WITHOUT LIMITATION, WARRANTIES THAT THE SOFTWARE IS FREE OF DEFECTS,
 *  MERCHANTABLE, FIT FOR A PARTICULAR PURPOSE, OR NON-INFRINGING.
 *  See the License for the specific provisions governing your rights and
 *  obligations concerning the Software.
 *
 *  The Initial Developer of the Original Code is: Sun Microsystems, Inc.
 *
 *  Copyright: 2000 by Sun Microsystems, Inc.
 *
 *  All Rights Reserved.
 *
 *  Contributor(s): _______________________________________
 *
 *
 ************************************************************************/
#ifndef __com_sun_star_frame_XModel_idl__
#define __com_sun_star_frame_XModel_idl__

#ifndef __com_sun_star_lang_XComponent_idl__
#include <com/sun/star/lang/XComponent.idl>
#endif

#ifndef __com_sun_star_beans_PropertyValue_idl__
#include <com/sun/star/beans/PropertyValue.idl>
#endif

#ifndef __com_sun_star_frame_XController_idl__
#include <com/sun/star/frame/XController.idl>
#endif

#ifndef __com_sun_star_container_NoSuchElementException_idl__
#include <com/sun/star/container/NoSuchElementException.idl>
#endif

#ifndef __com_sun_star_uno_XInterface_idl__
#include <com/sun/star/uno/XInterface.idl>
#endif


//=============================================================================

 module com {  module sun {  module star {  module frame {

//=============================================================================
/** represents a component which is created from an URL and arguments.

    <p>
    It is a representation of a resource in the sense that it was
    created/loaded from the resource. The arguments are passed to the loader
    to modify its behavior. An example for such an argument is "AsTemplate",
    which loads the resource as a template for a new document.
    (see <type scope="com::sun::star::document">MediaDescriptor</type> for further details)
    </p>

    <p>
    Models can be controlled by controller components, which are usually
    views of the model.
    (see <type>Controller</type> for further details)
    </p>

    <p>
    If there is at least one controller, there is by definition a
    current controller. And if that controller supports the interface
    <type scope="com::sun::star::view">XSelectionSupplier</type>, it has a current selection too.
    </p>

    @see com::sun::star::document::MediaDescriptor
    @see Controller
    @see com::sun::star::view::XSelectionSupplier
 */
interface XModel: com::sun::star::lang::XComponent
{
	//-------------------------------------------------------------------------
	/** informs a model about its resource description.

        @param URL
            specifies the ressource

        @param Arguments
            are optional arguments for that ressource
            (see <type scope="com::sun::star::document">MediaDescriptor</type>)

        @return
            <TRUE/> for success
            <br>
            <FALSE/> otherwise
	 */
    boolean attachResource(
        [in] string URL,
        [in] sequence<com::sun::star::beans::PropertyValue> Arguments);

	//-------------------------------------------------------------------------
    /** provides information about the location of this model

        @returns
            the URL of the resource which is represented by this model.

        @see XStorable::getLocation()
	 */
	string getURL();

	//-------------------------------------------------------------------------
    /** provides read acces on currently representation of the
        <type scope="com::sun::star::document">MediaDescriptor</type>
        of this model which describes the model and his state

        @returns
            the arguments with which the model was originally created or
            stored the last time.
	 */
    sequence< com::sun::star::beans::PropertyValue > getArgs();

	//-------------------------------------------------------------------------
	/** is called whenever a new controller is created for this model.

        <p>
        The <type scope="com::sun::star::lang">XComponent</type> interface
        of the controller must be used to recognize when it is deleted.
        </p>

        @param Controller
            a new controller for this model

        @see XModel::disconnectController()
	 */
    [oneway] void connectController( [in] XController Controller );

	//-------------------------------------------------------------------------
    /** is called whenever an existing controller should be deregistered at this model.

        <p>
        The <type scope="com::sun::star::lang">XComponent</type> interface
        of the controller must be used to recognize when it is deleted.
        </p>

        @param Controller
            the existing controller which should be deregistered

        @see XModel::connectController()
	 */
    [oneway] void disconnectController( [in] XController Controller );

	//-------------------------------------------------------------------------
	/** suspends some notifications to the controllers which are used
		for display updates.

        <p>
        The calls to <member>XModel::lockControllers()</member> and
        <member>XModel::unlockControllers()</member> may be
		nested and even overlapping, but they must be in pairs. While
		there is at least one lock remaining, some notifications
        for display updates are not broadcasted.
        </p>
     */
	[oneway] void lockControllers();

	//-------------------------------------------------------------------------
	/** resumes the notifications which were suspended by
        <member>XModel::lockControllers()</member>.

        <p>
        The calls to <member>XModel::lockControllers()</member> and
        <member>XModel::unlockControllers()</member> may be
		nested and even overlapping, but they must be in pairs. While
		there is at least one lock remaining, some notifications for
		display updates are not broadcasted.
        </p>
	*/
	[oneway] void unlockControllers();

	//-------------------------------------------------------------------------
	/** determines if there is at least one lock remaining.

        <p>
        While there is at least one lock remaining, some notifications
        for display updates are not broadcasted to the controllers.
        </p>

        @return
            <TRUE/> if any lock exist
            <br>
            <FALSE/> otherwise
	 */
	boolean hasControllersLocked();

	//-------------------------------------------------------------------------
    /** provides access to the controller which currently controls this model

        @returns
            If the controller which is active is a controller of this model,
            it will be returned. If not, the controller which was the last
            active of this model is returned. If no controller of this model
            ever was active, the controller first registered is returned. If no
            controller is registered for this model, <NULL/> is returned.
	 */
    XController getCurrentController();

	//-------------------------------------------------------------------------
	/** sets a registered controller as the current controller.

        @param Controller
            reference to an already existing connected controller, which should be
            the new active one

        @throws com::sun::star::container::NoSuchElementException
            if <var>xController</var> isn't an already connected controller on this model
	 */
    void setCurrentController( [in] XController Controller )
			raises( com::sun::star::container::NoSuchElementException );

	//-------------------------------------------------------------------------
    /** provides read access on current selection on controller

        @returns
            the current selection in the current controller.
            If there is no current controller, it returns <NULL/>.
	 */
	com::sun::star::uno::XInterface getCurrentSelection();
};

//=============================================================================

}; }; }; };

#endif
