#ifndef __com_sun_star_awt_XLayoutContainer_idl__
#define __com_sun_star_awt_XLayoutContainer_idl__

#ifndef __com_sun_star_awt_XLayoutConstrains_idl__
#include <com/sun/star/awt/XLayoutConstrains.idl>
#endif
#ifndef __com_sun_star_awt_Rectangle_idl__
#include <com/sun/star/awt/Rectangle.idl>
#endif
#ifndef __com_sun_star_beans_XPropertySet_idl__
#include <com/sun/star/beans/XPropertySet.idl>
#endif
#ifndef __com_sun_star_container_XChild_idl__
#include <com/sun/star/container/XChild.idl>
#endif
#ifndef __com_sun_star_awt_MaxChildrenException_idl__
#include <com/sun/star/awt/MaxChildrenException.idl>
#endif
#ifndef __com_sun_star_awt_XLayoutUnit_idl__
#include <com/sun/star/awt/XLayoutUnit.idl>
#endif

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

module com {  module sun {  module star {  module awt {

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

interface XLayoutUnit;

/** specifies the layout constraints for a surrounding container.

    @since OOo 3.0
 */
interface XLayoutContainer: com::sun::star::container::XChild
{
    /** Adds a child. Some containers provide an interface for
       adding children which you should use. */
    void addChild( [in] com::sun::star::awt::XLayoutConstrains Child )
        raises( com::sun::star::awt::MaxChildrenException );

    /** Remove a child. Some containers provide an interface for
       adding children which you should use.
    */
    void removeChild( [in] com::sun::star::awt::XLayoutConstrains Child );

    /** Returns a sequence of the children of this container. */
    sequence< com::sun::star::awt::XLayoutConstrains > getChildren();

    /** Read/modify some child layout properties. XPropertySet provides a
       rich API that allows, e.g., for introspection.
       Should rarely be a need to use; containers shall provide an interface
       for setting properties more confortably. */
    com::sun::star::beans::XPropertySet getChildProperties(
        [in] com::sun::star::awt::XLayoutConstrains Child );

    /** Set at initialization, this object should be notified when a containers state
       changes, that may affect its size, to queue a layout re-calculation. */
    void setLayoutUnit( [in] com::sun::star::awt::XLayoutUnit Unit );

    // TEMP: no need for this...
    com::sun::star::awt::XLayoutUnit getLayoutUnit();

    /** To be used by the parent for the purpose of layout management.
       For widgets, use XWindow::setPosSize() */
    void allocateArea( [in] com::sun::star::awt::Rectangle NewArea );

    /** Used by the layouting unit to evaluate size damage, and force a
       re-allocation. */
    com::sun::star::awt::Size getRequestedSize();

    /** Used by the layouting unit to evaluate size damage, and force a
       re-allocation. */
    com::sun::star::awt::Rectangle getAllocatedArea();

    /** For flow layouting (e.g. wrap-able labels). TODO: We might want to
       re-design this approach -- check XLayoutConstrains::calcAdjustedSize(). */
    long getHeightForWidth( [in] long Width );

    /** For flow layouting (e.g. wrap-able labels). TODO: We might want to
       re-design this approach -- check XLayoutConstrains::calcAdjustedSize(). */
    boolean hasHeightForWidth();
};

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

}; }; }; };

#endif
