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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
commite2de64d6f1beb9e492daf5b886e19933c1fa41dd (patch)
tree9047cf9e6b5c43878d5bf82660adae77ceee097a /juk/filehandleproperties.h
downloadtdemultimedia-e2de64d6f1beb9e492daf5b886e19933c1fa41dd.tar.gz
tdemultimedia-e2de64d6f1beb9e492daf5b886e19933c1fa41dd.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/kdemultimedia@1054174 283d02a7-25f6-0310-bc7c-ecb5cbfe19da
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+/***************************************************************************
+ Copyright (C) 2004 by Scott Wheeler <wheeler@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 FILEHANDLEPROPERTIES_H
+#define FILEHANDLEPROPERTIES_H
+
+#include <qmap.h>
+
+/*
+ * These ugly macros make possible a property registration system that makes it
+ * easy to add properties to the FileHandle that can be accessed via the DCOP
+ * interface.
+ *
+ * Properties should actually be added to the filehandle.cpp file. This file
+ * is just here to separate out some of the macro-related ugliness.
+ */
+
+#define AddProperty(name, method) \
+ namespace FileHandleProperties \
+ { \
+ struct name##Property : public Property \
+ { \
+ virtual QString value(const FileHandle &f) const \
+ { \
+ return f.method; \
+ } \
+ static const int dummy; \
+ }; \
+ static name##Property name##Instance; \
+ const int name##Property::dummy = addToPropertyMap(#name, &name##Instance); \
+ }
+
+#define AddNumberProperty(name, method) \
+ namespace FileHandleProperties \
+ { \
+ struct name##Property : public Property \
+ { \
+ virtual QString value(const FileHandle &f) const \
+ { \
+ return QString::number(f.method); \
+ } \
+ static const int dummy; \
+ }; \
+ static name##Property name##Instance; \
+ const int name##Property::dummy = addToPropertyMap(#name, &name##Instance); \
+ }
+
+namespace FileHandleProperties
+{
+ struct Property
+ {
+ virtual QString value(const FileHandle &) const
+ {
+ return QString::null;
+ }
+ };
+
+ static QMap<QCString, const Property *> propertyMap;
+
+ static int addToPropertyMap(const QCString &name, Property *property)
+ {
+ propertyMap[name] = property;
+ return 0;
+ }
+
+ static QString property(const FileHandle &file, const QCString &key)
+ {
+ return propertyMap.contains(key) ? propertyMap[key]->value(file) : QString::null;
+ }
+
+ static QStringList properties()
+ {
+ static QStringList l;
+
+ if(l.isEmpty()) {
+ QMap<QCString, const Property *>::ConstIterator it = propertyMap.begin();
+ for(; it != propertyMap.end(); ++it)
+ l.append(QString(it.key()));
+ }
+ return l;
+ }
+}
+
+#endif