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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*************************************************************************
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* Copyright 2000, 2010 Oracle and/or its affiliates.
*
* OpenOffice.org - a multi-platform office productivity suite
*
* This file is part of OpenOffice.org.
*
* OpenOffice.org is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License version 3
* only, as published by the Free Software Foundation.
*
* OpenOffice.org is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License version 3 for more details
* (a copy is included in the LICENSE file that accompanied this code).
*
* You should have received a copy of the GNU Lesser General Public License
* version 3 along with OpenOffice.org. If not, see
* <http://www.openoffice.org/license.html>
* for a copy of the LGPLv3 License.
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************************************************************************/
#ifndef __com_sun_star_drawing_XSlideRenderer_idl__
#define __com_sun_star_drawing_XSlideRenderer_idl__
#include <com/sun/star/awt/XBitmap.idl>
#include <com/sun/star/drawing/XDrawPage.idl>
#include <com/sun/star/rendering/XBitmap.idl>
#include <com/sun/star/rendering/XSpriteCanvas.idl>
module com { module sun { module star { module drawing {
/** Create preview bitmaps for single slides.
*/
interface XSlideRenderer
{
/** Create a preview for the given slide that has the same aspect ratio
as the page and is as large as possible but not larger than the
specified size.
The reason for not using the given size directly as preview size and
thus possibly changing the aspect ratio is that
a) a different aspect ratio is not used often, and
b) leaving the adaption of the actual preview size (according to the
aspect ratio of the slide) to the slide renderer is more convenient
to the caller than having to this himself.
@param xSlide
The slide for which a preview will be created.
@param aMaximumPreviewPixelSize
The maximum size of the preview measured in pixels. When the
aspect ratios of this size and of the given slide differ, then
resulting preview will either have the width or the height of
this size.
@param nSuperSampleFactor
When larger than the default 1 then internally a larger preview
is created which, before it is returned, is scaled down to the
requested size. The intermediate size is nSuperSampleFactor
times the original size. Values larger than 1 result in higher
memory consumption and longer runtime.
This value is an attempt to provide some antialiasing and so to
provide more readable slide previews. May become obsolete in
the future when true antialiasing support will be integrated.
*/
com::sun::star::awt::XBitmap createPreview (
[in] XDrawPage xSlide,
[in] com::sun::star::awt::Size aMaximumPreviewPixelSize,
[in] short nSuperSampleFactor);
/** Exactly the same functionality as <member>createPreview()</member>,
only a different return type:
<type>com::sun::star::rendering::XBitmap</type> instead
of <type>com::sun::star::awt::XBitmap</type>.
@see createPreview
@param xCanvas
This canvas is used create a canvas specific bitmap.
*/
com::sun::star::rendering::XBitmap createPreviewForCanvas (
[in] XDrawPage xSlide,
[in] com::sun::star::awt::Size aMaximumPreviewPixelSize,
[in] short nSuperSampleFactor,
[in] com::sun::star::rendering::XCanvas xCanvas);
/** Return a size that has the given aspect ratio and shares either the
width or the height with the given maximum size.
@param nSlideAspectRatio
The aspect ratio must not be 0.
@param aMaximumPreviewPixelSize
The maximum size of the returned preview size.
*/
com::sun::star::awt::Size calculatePreviewSize (
[in] double nSlideAspectRatio,
[in] com::sun::star::awt::Size aMaximumPreviewPixelSize);
};
}; }; }; }; // ::com::sun::star::drawing
#endif
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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