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authortoma <toma@283d02a7-25f6-0310-bc7c-ecb5cbfe19da>2009-11-25 17:56:58 +0000
committertoma <toma@283d02a7-25f6-0310-bc7c-ecb5cbfe19da>2009-11-25 17:56:58 +0000
commit47d455dd55be855e4cc691c32f687f723d9247ee (patch)
tree52e236aaa2576bdb3840ebede26619692fed6d7d /kpovmodeler/pmiomanager.h
downloadtdegraphics-47d455dd55be855e4cc691c32f687f723d9247ee.tar.gz
tdegraphics-47d455dd55be855e4cc691c32f687f723d9247ee.zip
Copy the KDE 3.5 branch to branches/trinity for new KDE 3.5 features.
BUG:215923 git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/kdegraphics@1054174 283d02a7-25f6-0310-bc7c-ecb5cbfe19da
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+/*
+**************************************************************************
+ description
+ --------------------
+ copyright : (C) 2003 by Andreas Zehender
+ email : zehender@kde.org
+**************************************************************************
+
+**************************************************************************
+* *
+* This program is free software; you can redistribute it and/or modify *
+* it under the terms of the GNU General Public License as published by *
+* the Free Software Foundation; either version 2 of the License, or *
+* (at your option) any later version. *
+* *
+**************************************************************************/
+
+#ifndef PMIOMANAGER
+#define PMIOMANAGER
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <qstring.h>
+#include <qstringlist.h>
+#include <qptrlist.h>
+#include <qdict.h>
+
+class PMParser;
+class PMSerializer;
+class PMRenderer;
+class PMPart;
+
+class QIODevice;
+
+/**
+ * Description class for input and output formats.
+ *
+ * A format may provide the following services:
+ *
+ * Import: The class can provide a parser to load and import data
+ *
+ * Export: The class can provide a output device to export and save data
+ *
+ * Renderer: A renderer exists to render the exported data
+ *
+ * The class @ref PMIOManager stores a list of instances
+ * of this class
+ */
+class PMIOFormat
+{
+public:
+ /**
+ * Format type enum
+ */
+ enum Services { Import = 1, Export = 2, Renderer = 4,
+ AllServices = Import | Export | Renderer };
+ /**
+ * Default constructor
+ */
+ PMIOFormat( );
+ /**
+ * Destructor
+ */
+ virtual ~PMIOFormat( );
+
+ /**
+ * Returns an unique name of this format.
+ */
+ virtual QString name( ) const = 0;
+ /**
+ * Returns a translated description of this format
+ */
+ virtual QString description( ) const = 0;
+ /**
+ * Returns the supported services
+ * (a bitwise combination of the Services enum values)
+ */
+ virtual int services( ) const = 0;
+ /**
+ * Returns a parser to parse the io device.
+ *
+ * The caller is responsible to delete the returned parser.
+ */
+ virtual PMParser* newParser( PMPart*, QIODevice* ) const
+ {
+ return 0;
+ };
+ /**
+ * Returns a parser to parse the byte array.
+ *
+ * The caller is responsible to delete the returned parser.
+ */
+ virtual PMParser* newParser( PMPart*, const QByteArray& ) const
+ {
+ return 0;
+ };
+ /**
+ * Returns an output device to export objects or the complete
+ * scene to the given io device.
+ *
+ * The caller is responsible to delete the returned device
+ */
+ virtual PMSerializer* newSerializer( QIODevice* )
+ {
+ return 0;
+ }
+ /**
+ * Returns a new renderer
+ */
+ virtual PMRenderer* newRenderer( PMPart* ) const
+ {
+ return 0;
+ }
+ /**
+ * Returns the mime type for this format
+ */
+ virtual QString mimeType( ) const
+ {
+ return QString::null;
+ }
+ /**
+ * Returns a list of patterns for the import file dialog
+ */
+ virtual QStringList importPatterns( ) const
+ {
+ return QStringList( );
+ }
+ /**
+ * Returns a list of patterns for the export file dialog
+ */
+ virtual QStringList exportPatterns( ) const
+ {
+ return QStringList( );
+ }
+};
+
+/**
+ * Manager class that handles all available input and output formats
+ * as well as renderers for one part
+ */
+class PMIOManager
+{
+public:
+ /**
+ * Creates an io manager for the part
+ */
+ PMIOManager( PMPart* part );
+ /**
+ * Deletes the io manager
+ */
+ ~PMIOManager( );
+
+ /**
+ * Adds a new format
+ */
+ void addFormat( PMIOFormat* format );
+ /**
+ * Removes a format by name
+ */
+ void removeFormat( const QString& name );
+
+ /**
+ * Returns the list of registered io formats
+ */
+ const QPtrList<PMIOFormat>& formats( ) const { return m_formats; }
+ /**
+ * Returns a view type by name
+ */
+ PMIOFormat* format( const QString& name ) const;
+ /**
+ * Returns the first io format that can handle the mime type
+ * or 0 if there is none
+ */
+ PMIOFormat* formatForMimeType( const QString& mime ) const;
+
+private:
+ QPtrList<PMIOFormat> m_formats;
+ QDict<PMIOFormat> m_dict;
+ PMPart* m_pPart;
+};
+
+#endif