xref: /aoo41x/main/offapi/com/sun/star/rendering/RenderState.idl (revision d695a2a0)

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 * Licensed to the Apache Software Foundation (ASF) under one
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 * to you under the Apache License, Version 2.0 (the
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#ifndef __com_sun_star_rendering_RenderState_idl__
#define __com_sun_star_rendering_RenderState_idl__

#ifndef __com_sun_star_geometry_AffineMatrix2D_idl__
#include <com/sun/star/geometry/AffineMatrix2D.idl>
#endif
#ifndef __com_sun_star_rendering_XColorSpace_idl__
#include <com/sun/star/rendering/XColorSpace.idl>
#endif

module com { module sun { module star { module rendering {

published interface XPolyPolygon2D;

/** This structure contains information passed to each
    <type>XCanvas</type> render operation.<p>

    This structure contains information considered as the render
    state, i.e. the common setup required to render each individual
    <type>XCanvas</type> primitive.<p>

    @since OpenOffice 2.0
 */
published struct RenderState
{
    /** The affine transform associated with this render
        operation.<p>

        This is used to transform coordinates of canvas primitives
        from user space to view space (from which they are
        subsequently transformed to device space by the view
        transform).<p>
     */
    ::com::sun::star::geometry::AffineMatrix2D	AffineTransform;

    //-------------------------------------------------------------------------

    /** The clipping area associated with this render operation.<p>

        This clipping is interpreted in the user coordinate system,
        i.e. subject to the render state transform followed by the
        view transform before mapped to device coordinate space.<p>

        Specifying an empty interface denotes no clipping,
        i.e. everything rendered to the canvas will be visible
        (subject to device-dependent constraints, of
        course). Specifying an empty XPolyPolygon2D, i.e. a
        poly-polygon containing zero polygons, or an XPolyPolygon2D
        with any number of empty sub-polygons, denotes the NULL
        clip. That means, nothing rendered to the canvas will be
        visible.<p>
     */
    XPolyPolygon2D										Clip;

    //-------------------------------------------------------------------------

    /** The device color associated with this render operation.<p>

        Note that this need not be RGB here, but depends on the active
        device color space.<p>

        @see XGraphicDevice
        @see XColorSpace
     */
    sequence<ColorComponent>							DeviceColor;

    //-------------------------------------------------------------------------

    /** The composition mode associated with this render
        operation.<p>

        The composite mode determines in which way the primitive and
        possibly existing background is combined. The permissible
        values must be one out of the <type>CompositeOperation</type>
        constants.<p>
     */
    byte												CompositeOperation;
};

}; }; }; };

#endif