From fe452e3ac96699d51d47ecdc43c58778b512d72a Mon Sep 17 00:00:00 2001
From: Andrew <forkk@forkk.net>
Date: Wed, 13 Feb 2013 10:46:39 -0600
Subject: Added SigList class.
---
data/siglist.h | 130 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 130 insertions(+)
create mode 100644 data/siglist.h
(limited to 'data/siglist.h')
diff --git a/data/siglist.h b/data/siglist.h
new file mode 100644
index 00000000..b6432b6e
--- /dev/null
+++ b/data/siglist.h
@@ -0,0 +1,130 @@
+/* Copyright 2013 MultiMC Contributors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef SIGLIST_H
+#define SIGLIST_H
+
+#include <QObject>
+#include <QList>
+
+// A QList that allows emitting signals when the list changes.
+// Since QObject doesn't support templates, to use this class with a
+// certain type, you should create a class deriving from SigList<T> and then
+// call the DEFINE_SIGLIST_SIGNALS(T) and SETUP_SIGLIST_SIGNALS(T) macros.
+template <typename T>
+class SigList : public QList<T>
+{
+
+public:
+ explicit SigList() : QList<T>() {}
+
+ virtual void append(const T &value);
+ virtual void append(const QList<T> &other);
+
+ virtual void clear();
+
+ virtual void erase(iterator pos);
+ virtual void erase(iterator first, iterator last);
+
+ virtual void insert(int i, const T &t);
+ virtual void insert(iterator before, const T &t);
+
+ virtual void move(int from, int to);
+
+ virtual void pop_back() { takeLast(); }
+ virtual void pop_front() { takeFirst(); }
+
+ virtual void push_back(const T &t) { append(t); }
+ virtual void push_front(const T &t) { prepend(t); }
+
+ virtual void prepend(const T &t);
+
+ virtual int removeAll(const T &t);
+ virtual bool removeOne(const T &t);
+
+ virtual void removeAt(int i) { takeAt(i); }
+ virtual void removeFirst() { takeFirst(); }
+ virtual void removeLast() { takeLast(); }
+
+ virtual void swap(QList<T> &other);
+ virtual void swap(int i, int j);
+
+ virtual T takeAt(int i);
+ virtual T takeFirst();
+ virtual T takeLast();
+
+ virtual QList<T> &operator +=(const QList<T> &other) { append(other); return *this; }
+ virtual QList<T> &operator +=(const T &value) { append(value); return *this; }
+ virtual QList<T> &operator <<(const QList<T> &other) { append(other); return *this; }
+ virtual QList<T> &operator <<(const T &value) { append(value); return *this; }
+
+ virtual QList<T> &operator =(const QList<T> &other);
+
+
+ // Signal emitted after an item is added to the list.
+ // Contains a reference to item and the item's new index.
+ virtual void onItemAdded(const T &item, int index) = 0;
+
+ // Signal emitted after multiple items are added to the list at once.
+ // The items parameter is a const reference to a QList of the items that
+ // were added.
+ // The firstIndex parameter is the new index of the first item added.
+ virtual void onItemsAdded(const QList<T> &items, int firstIndex) = 0;
+
+ // Signal emitted after an item is removed to the list.
+ // Contains a reference to the item and the item's old index.
+ virtual void onItemRemoved(const T &item, int index) = 0;
+
+ // Signal emitted after multiple items are removed from the list at once.
+ // The items parameter is a const reference to a QList of the items that
+ // were added.
+ // The firstIndex parameter is the new index of the first item added.
+ virtual void onItemsRemoved(const QList<T> &items, int firstIndex) = 0;
+
+ // Signal emitted after an item is moved to another index.
+ // Contains the item, the old index, and the new index.
+ virtual void onItemMoved(const T &item, int oldIndex, int newIndex) = 0;
+
+ // Signal emitted after an operation that changes the whole list occurs.
+ // This signal should be treated as if all data in the entire list was cleared
+ // and new data added in its place.
+ virtual void onInvalidated() = 0;
+};
+
+// Defines the signals for a SigList
+#define DEFINE_SIGLIST_SIGNALS(TYPE) \
+ Q_SIGNAL void itemAdded(TYPE const &item, int index);\
+ Q_SIGNAL void itemsAdded(const QList<TYPE> &items, int firstIndex);\
+ Q_SIGNAL void itemRemoved(TYPE const &item, int index);\
+ Q_SIGNAL void itemsRemoved(const QList<TYPE> &items, int firstIndex);\
+ Q_SIGNAL void itemMoved(TYPE const &item, int oldIndex, int newIndex);\
+ Q_SIGNAL void invalidated();
+
+// Overrides the onItem* functions and causes them to emit their corresponding
+// signals.
+#define SETUP_SIGLIST_SIGNALS(TYPE) \
+ virtual void onItemAdded(TYPE const &item, int index)\
+ { emit itemAdded(item, index); }\
+ virtual void onItemsAdded(const QList<TYPE> &items, int firstIndex)\
+ { emit itemsAdded(items, firstIndex); }\
+ virtual void onItemRemoved(TYPE const &item, int index)\
+ { emit itemRemoved(item, index); }\
+ virtual void onItemsRemoved(const QList<TYPE> &items, int firstIndex)\
+ { emit itemsRemoved(items, firstIndex); }\
+ virtual void onItemMoved(TYPE const &item, int oldIndex, int newIndex)\
+ { emit itemMoved(item, oldIndex, newIndex); }\
+ virtual void onInvalidated() { emit invalidated(); }
+
+#endif // SIGLIST_H
--
cgit