126 lines
5.1 KiB
Text
126 lines
5.1 KiB
Text
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*
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* This file is part of the LibreOffice project.
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*
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* This file incorporates work covered by the following license notice:
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed
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* with this work for additional information regarding copyright
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* ownership. The ASF licenses this file to you under the Apache
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* License, Version 2.0 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.apache.org/licenses/LICENSE-2.0 .
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*/
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module com { module sun { module star { module rendering {
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interface XBitmapPalette;
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/** This is a specialized interface for bitmaps having integer color
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channels. In contrast to XIntegerBitmap, this
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interface only permits read-only access.<p>
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Use this interface for e.g. bitmaps that are calculated
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on-the-fly, or that are pure functional, and thus cannot be
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modified.<p>
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If you get passed an instance of
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XIntegerReadOnlyBitmap that also supports the
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XVolatileBitmap interface, things become a bit more
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complicated. When reading data, one has to check for both
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VolatileContentDestroyedException and mismatching
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IntegerBitmapLayout return values. If either of them
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occurs, the whole bitmap read operation should be repeated, if you
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need consistent information.<p>
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*/
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interface XIntegerReadOnlyBitmap : XBitmap
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{
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/** Query the raw data of this bitmap.<p>
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Query the raw data of this bitmap, in the format as defined by
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getMemoryLayout(). With the given rectangle, a subset of the
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whole bitmap can be queried. If the internal data format's
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pixel are not integer multiples of bytes (i.e. if one pixel
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occupies less than a byte), the leftover content of the bytes
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at the right of each scanline is filled with zeros. The
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details of the scanline padding are to be retrieved from the
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passed bitmap layout.<p>
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Note that the bitmap memory layout might change over time for
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volatile bitmaps.<p>
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@param bitmapLayout
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The memory layout the returned data is in. Note that the color
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space returned therein needs to always match the current color
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space as would have been returned by getMemoryLayout(). This
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is necessary to ensure correct operation under changing
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XVolatileBitmap.
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@param rect
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A rectangle, within the bounds of the bitmap, to retrieve the
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consent from.
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@throws VolatileContentDestroyedException
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if the bitmap is volatile, and the content has been destroyed by the system.
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@throws com::sun::star::lang::IndexOutOfBoundsException
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if parts of the given rectangle are outside the permissible
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bitmap area.
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*/
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sequence<byte> getData( [out] IntegerBitmapLayout bitmapLayout, [in] ::com::sun::star::geometry::IntegerRectangle2D rect )
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raises (com::sun::star::lang::IndexOutOfBoundsException,
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VolatileContentDestroyedException);
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/** Get a single pixel of the bitmap, returning its color
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value.<p>
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If the internal data format's pixel are not integer multiples
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of bytes (i.e. if one pixel occupies less than a byte - the
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case of more than one byte per pixel is not specified), the
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color value is returned in the least significant bits of the
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single byte returned as the color. The details of the returned
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pixel data are to be retrieved from the passed bitmap layout.<p>
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Note that the bitmap memory layout might change for volatile
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bitmaps.<p>
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@param bitmapLayout
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The memory layout the returned data is in. Note that the color
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space returned therein needs to always match the current color
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space as would have been returned by getMemoryLayout(). This
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is necessary to ensure correct operation under changing
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XVolatileBitmap.
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@param pos
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A position, within the bounds of the bitmap, to retrieve the
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color from.
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@throws VolatileContentDestroyedException
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if the bitmap is volatile, and the content has been destroyed by the system.
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@throws com::sun::star::lang::IndexOutOfBoundsException
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if the given position is outside the permissible bitmap area.
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*/
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sequence<byte> getPixel( [out] IntegerBitmapLayout bitmapLayout, [in] ::com::sun::star::geometry::IntegerPoint2D pos )
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raises (com::sun::star::lang::IndexOutOfBoundsException,
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VolatileContentDestroyedException);
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/** Query the memory layout for this bitmap.<p>
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Please note that for volatile bitmaps, the memory layout might
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change between subsequent calls.<p>
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*/
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IntegerBitmapLayout getMemoryLayout();
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};
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}; }; }; };
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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