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+/*
+ * kmail: KDE mail client
+ * Copyright (c) 1996-1998 Stefan Taferner <taferner@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.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ */
+#ifndef kmmsglist_h
+#define kmmsglist_h
+
+#include "kmmsgbase.h"
+
+#include <qmemarray.h>
+
+/**
+ * @short An abstraction of an array of pointers to messages.
+ *
+ * This class represents an array of pointers to message objects. It
+ * autoresizes and can load a KMMsgDict object from its contents. It's
+ * a pure implementation detail of KMFolderIndex and should not be used by
+ * the layers above that.
+ *
+ * @author Stefan Taferner <taferner@kde.org>
+ */
+class KMMsgList: public QMemArray<KMMsgBase*>
+{
+public:
+
+ /** Constructor with optional initial size. */
+ KMMsgList(int initialSize=32);
+
+ /** Destructor also deletes all messages in the list. */
+ ~KMMsgList();
+
+ /** Remove message at given index without deleting it.
+ Also removes from message dictionary. */
+ void remove(unsigned int idx);
+
+ /** Returns message at given index and removes it from the list.
+ Also removes from message dictionary. */
+ KMMsgBase* take(unsigned int idx);
+
+ /** Insert message at given index. Resizes the array if necessary.
+ If @p syncDict, also updates message dictionary. */
+ void insert(unsigned int idx, KMMsgBase* msg, bool syncDict = true);
+
+ /** Append given message after the last used message. Resizes the
+ array if necessary. Returns index of new position.
+ If @p syncDict, also updates message dictionary. */
+ unsigned int append(KMMsgBase* msg, bool syncDict = true);
+
+ /** Clear messages. If autoDelete is set (default) the messages are
+ deleted. The array is not resized. If @p syncDict, also updates
+ the message dictionary. */
+ void clear(bool autoDelete=TRUE, bool syncDict = false);
+
+ /** Resize array and initialize new elements if any. Returns
+ FALSE if memory cannot be allocated. */
+ bool resize(unsigned int size);
+
+ /** Clear the array and resize it to given size. Returns FALSE
+ if memory cannot be allocated. */
+ bool reset(unsigned int size);
+
+ /** Set message at given index. The array is resized if necessary. If
+ there is already a message at the given index this message is *not*
+ deleted. Does not sync the message dictionary. */
+ void set(unsigned int idx, KMMsgBase* msg);
+
+ /** Returns first unused index (index of last message plus one). */
+ unsigned int high() const { return mHigh; }
+
+ /** Number of messages in the array. */
+ unsigned int count() const { return mCount; }
+
+protected:
+ /** Set mHigh to proper value */
+ void rethinkHigh();
+
+ unsigned int mHigh, mCount;
+};
+
+
+#endif /*kmmsglist_h*/