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// -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
// Copyright 2012 LibreOffice contributors.
//
// This Source Code Form is subject to the terms of the Mozilla Public
// License 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/.
#ifndef org_libreoffice_touch_XDocumentRenderCallback_idl
#define org_libreoffice_touch_XDocumentRenderCallback_idl
#include <com/sun/star/uno/XInterface.idl>
module org { module libreoffice { module touch {
interface XDocument;
interface XDocumentRenderCallback: com::sun::star::uno::XInterface
{
// Return false from any of the callbacks if the render result isn't
// wanted after all and the rendering should stop
// pageWidth and pageHeight are in [1..squareSide] where squareSide is
// the side of the render target square implied by the size of the
// buffer passed to render().
// This always called at the start of rendering one page
boolean start( [in] long pageWidth,
[in] long pageHeight );
// Called with unspecified frequency during the rendering, possibly
// even not at all, but the intent is to call this with "reasonable"
// frquency if the rendering takes a "long" time. Maybe around ten
// times a second?
// There is no guarantee in which order the bitmap is being rendered
// fraction is in [0..1] and is an approximation of unknown exactness
// If the rendering code doesn't even bother guessing, it can pass
// zero all the time. The fraction in subsequent calls never
// decreases.
boolean progress( [in] float fraction );
// There is no callback when the rendering finishes; render() just
// returns.
};
}; }; };
#endif
// vim:set shiftwidth=4 softtabstop=4 expandtab:
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