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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
 * This file is part of the LibreOffice project.
 *
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
 *
 * This file incorporates work covered by the following license notice:
 *
 *   Licensed to the Apache Software Foundation (ASF) under one or more
 *   contributor license agreements. See the NOTICE file distributed
 *   with this work for additional information regarding copyright
 *   ownership. The ASF licenses this file to you under the Apache
 *   License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0 .
 */
#ifndef __com_sun_star_rendering_XIeeeFloatReadOnlyBitmap_idl__
#define __com_sun_star_rendering_XIeeeFloatReadOnlyBitmap_idl__

#include <com/sun/star/lang/IllegalArgumentException.idl>
#include <com/sun/star/lang/IndexOutOfBoundsException.idl>
#include <com/sun/star/rendering/FloatingPointBitmapLayout.idl>
#include <com/sun/star/geometry/IntegerPoint2D.idl>
#include <com/sun/star/geometry/IntegerRectangle2D.idl>
#include <com/sun/star/rendering/XBitmap.idl>
#include <com/sun/star/rendering/VolatileContentDestroyedException.idl>


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

/** Specialized interface for bitmaps containing IEEE floats as their
    color components. In contrast to <type>XIeeeFloatBitmap</type>,
    this interface only permits read-only access.<p>

    Use this interface for e.g. bitmaps that are calculated
    on-the-fly, or that are pure functional, and thus cannot be
    modified.<p>

    If you get passed an instance of
    <type>XHalfFloatReadOnlyBitmap</type> that also supports the
    <type>XVolatileBitmap</type> interface, things become a bit more
    complicated. When reading data, one has to check for both
    <type>VolatileContentDestroyedException</type> and mismatching
    <type>FloatingPointBitmapLayout</type> return values. If either of them
    occurs, the whole bitmap read operation should be repeated.<p>
 */
interface XIeeeFloatReadOnlyBitmap : XBitmap
{
    /** Query the raw data of this bitmap.<p>

        Query the raw data of this bitmap, in the format as defined by
        getMemoryLayout(). With the given rectangle, a subset of the
        whole bitmap can be queried. When querying subsets of the
        bitmap, the same scanline padding takes place as when the
        whole bitmap is requested.<p>

        Note that the bitmap memory layout might change for volatile
        bitmaps.<p>

        @param bitmapLayout
        The memory layout the returned data is in.

        @param rect
        A rectangle, within the bounds of the bitmap, to retrieve the
        consent from.

        @throws <type>VolatileContentDestroyedException</type>
        if the bitmap is volatile, and the content has been destroyed by the system.

        @throws <type>com::sun::star::lang::IndexOutOfBoundsException</type>
        if parts of the given rectangle are outside the permissible
        bitmap area.
     */
    sequence<float>             getData( [out] FloatingPointBitmapLayout bitmapLayout, [in] ::com::sun::star::geometry::IntegerRectangle2D rect )
        raises (com::sun::star::lang::IndexOutOfBoundsException,
                VolatileContentDestroyedException);


    /** Get a single pixel of the bitmap, returning its color
        value.<p>

        Note that the bitmap memory layout might change for volatile
        bitmaps.<p>

        @param bitmapLayout
        The memory layout the returned data is in.

        @param pos
        A position, within the bounds of the bitmap, to retrieve the
        color from.

        @throws <type>VolatileContentDestroyedException</type>
        if the bitmap is volatile, and the content has been destroyed by the system.

        @throws <type>com::sun::star::lang::IndexOutOfBoundsException</type>
        if the given position is outside the permissible bitmap area.
     */
    sequence<float>             getPixel( [out] FloatingPointBitmapLayout bitmapLayout, [in] ::com::sun::star::geometry::IntegerPoint2D pos )
        raises (com::sun::star::lang::IndexOutOfBoundsException,
                VolatileContentDestroyedException);


    /** Query the memory layout for this bitmap.<p>

        Please note that for volatile bitmaps, the memory layout might
        change between subsequent calls.<p>
     */
    FloatingPointBitmapLayout   getMemoryLayout();
};

}; }; }; };

#endif

/* vim:set shiftwidth=4 softtabstop=4 expandtab: */