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92 lines
3.5 KiB
92 lines
3.5 KiB
/***************************************************************************
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* Copyright (C) 2005 by Stefan Kebekus *
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* kebekus@kde.org *
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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* This program is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* GNU General Public License for more details. *
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* *
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* You should have received a copy of the GNU General Public License *
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* along with this program; if not, write to the *
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* Free Software Foundation, Inc., *
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. *
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***************************************************************************/
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#ifndef _FAXRENDERER_H_
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#define _FAXRENDERER_H_
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#include "documentRenderer.h"
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#include "kfaximage.h"
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class documentPage;
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/*! \brief Well-documented minimal implementation of a documentRenderer for reading FAX files
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This class provides a well-documented reference implementation of a
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documentRenderer, suitable as a starting point for a real-world
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implementation. This class is responsible for document loading and
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rendering. Apart from the constructor and the descructor, it
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implements only the necessary methods setFile() and drawPage().
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*/
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class FaxRenderer : public DocumentRenderer
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{
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Q_OBJECT
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public:
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/** Default constructor
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This constructor simply prints a message (if debugging is
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enabled) and calls the default constructor.
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*/
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FaxRenderer(TQWidget* parent);
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/** Destructor
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The destructor simpley prints a message if debugging is
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enabled. It uses the mutex to ensure that this class is not
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destructed while another thread is currently using it.
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*/
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~FaxRenderer();
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/** Opening a file
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This implementation does the necessary consistency checks and
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complains, e.g. if the file does not exist. It then uses the
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member 'fax' to load the fax file and initializes the
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appropriate data structures. The code for loading and rendering
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is contained in the class "KFaxImage", to keep this reference
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implementation short.
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@param fname the name of the file that should be opened.
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*/
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virtual bool setFile(const TQString& fname, const KURL &);
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/** Rendering a page
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This implementation first checks if the arguments are in a
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reasonable range, and error messages are printed if this is not
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so. Secondly, the page is rendered by the KFaxImage class and
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the drawn.
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@param res resolution at which drawing should take place
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@param page pointer to a page structur on which we should draw
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*/
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void drawPage(double res, RenderedDocumentPage* page);
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private:
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/** This class holds the fax file */
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KFaxImage fax;
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};
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#endif
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