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

1 files changed, 94 insertions, 0 deletions

diff --git a/juk/filehandleproperties.h b/juk/filehandleproperties.h
new file mode 100644
index 00000000..b0b708bc
--- /dev/null
+++ b/juk/filehandleproperties.h
@@ -0,0 +1,94 @@
+/***************************************************************************
+  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