xref: /trunk/main/offapi/com/sun/star/chart2/data/XDataProvider.idl (revision cdf0e10c)

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#ifndef com_sun_star_chart2_data_XDataProvider_idl
#define com_sun_star_chart2_data_XDataProvider_idl

#include <com/sun/star/uno/XInterface.idl>
#include <com/sun/star/lang/IllegalArgumentException.idl>

#include <com/sun/star/chart2/data/XDataSource.idl>

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

#include <com/sun/star/sheet/XRangeSelection.idl>

module com
{
module sun
{
module star
{
module chart2
{
module data
{

/** An application that provides data for a chart must implement this
    interface.
 */
interface XDataProvider  : ::com::sun::star::uno::XInterface
{
    /** If <TRUE/> is returned, a call to createDataSource with the
        same arguments must return a valid XDataSequence object.  If
        <FALSE/> is returned, createDataSource throws an exception.
     */
    boolean createDataSourcePossible( [in] sequence< com::sun::star::beans::PropertyValue > aArguments );

    /** Creates a data source object that matches the given range
        representation string.

        <p>This can be used for creating the necessary data for a new
        chart out of a previously selected range of cells in a
        spreadsheet.</p>

        @param aArguments
            Arguments that tell the data provider how to slice the
            given range.  The properties should be defined in a
            separate service.

            <p>For spreadsheets and textdocument tables there exists a
            service <type>TabularDataProviderArguments</type>
            describing valid values for this list.</p>

        @return
            a data source containing <type>DataSequence</type>s that
            span the entire region given in <code>aArguments</code>.

        @throws ::com::sun::star::lang::IllegalArgumentException
            may be raised by the <type>XDataProvider</type> if it is
            unable to interpret the arguments passed in
	 		<code>aArguments</code> appropriately.
     */
    XDataSource createDataSource(
        [in] sequence< com::sun::star::beans::PropertyValue > aArguments )
        raises( com::sun::star::lang::IllegalArgumentException );

    /** Tries to find out with what parameters the passed
        <type>DataSource</type> most probably was created.

        <p>if xDataSource is a data source that was created with
        <member>createDataSource</member>, the arguments returned here
	 	should be the same than the ones passed to the function.
	 	Of course, this cannot be guaranteed.  However, if detection
	 	is ambiguous, the returned arguments should be empty. </p>

        <p>This method may merge representation strings together if
        adjacent ranges appear successively in the range identifiers.
        E.g., if the first range refers to "$Sheet1.$A$1:$A$8" and the
        second range refers to "$Sheet1.$B$1:$B$8", those should be
        merged together to "$Sheet1.$A$1:$B$8".</p>

        @param xDataSource
            A data source containing all data used in a chart.

        @return
            Arguments that when being passed to
            <member>createDataSource</member> should in an ideal case
            return the same data source as <code>xDataSource</code>.
     */
    sequence< com::sun::star::beans::PropertyValue > detectArguments(
        [in] XDataSource xDataSource );

    /** If <TRUE/> is returned, a call to
        createDataSequenceByRangeRepresentation with the same argument must
        return a valid XDataSequence object.  If <FALSE/> is returned,
        createDataSequenceByRangeRepresentation throws an exception.
     */
    boolean createDataSequenceByRangeRepresentationPossible( [in] string aRangeRepresentation );

    /** creates a single data sequence for the given data range.

        @param aRangeRepresentation
            is a string that can be interpreted by the component that
	 		implements this interface.  The representation string is
	 		of a form that may be used in the user interface.

        @see createDataSource

        @throws com::sun::star::lang::IllegalArgumentException
            if the given range does not contain a valid range
            representation for a one-dimensional range of data.
     */
    XDataSequence createDataSequenceByRangeRepresentation(
        [in] string aRangeRepresentation )
        raises( com::sun::star::lang::IllegalArgumentException );

    /** Returns a component that is able to change a given range
        representation to another one.  This usually is a
        controller-component that uses the GUI to allow a user to
        select a new range.

        <p>This method may return nothing, if it does not support
        range selection or if there is no current controller available
        that offers the functionality.</p>

        @return
            The component for selecting a new range.  It must support
            <type>XComponent</type>, in order to inform the receiver
            about its lifetime.</p>
     */
    com::sun::star::sheet::XRangeSelection getRangeSelection();
};

} ; // data
} ; // chart2
} ; // com
} ; // sun
} ; // star


#endif