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-rw-r--r--data/siglist.h130
-rw-r--r--data/siglist_imp.h156
2 files changed, 286 insertions, 0 deletions
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
diff --git a/data/siglist_imp.h b/data/siglist_imp.h
new file mode 100644
index 00000000..16ddd9b0
--- /dev/null
+++ b/data/siglist_imp.h
@@ -0,0 +1,156 @@
+/* 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.
+ */
+
+#include "siglist.h"
+
+template <typename T>
+void SigList<T>::append(const T &value)
+{
+ QList<T>::append(value);
+ onItemAdded(value, length() - 1);
+}
+
+template <typename T>
+void SigList<T>::prepend(const T &value)
+{
+ QList<T>::prepend(value);
+ onItemAdded(value, 0);
+}
+
+template <typename T>
+void SigList<T>::append(const QList<T> &other)
+{
+ int index = length();
+ QList<T>::append(other);
+ onItemsAdded(other, index);
+}
+
+template <typename T>
+void SigList<T>::clear()
+{
+ QList<T>::clear();
+ onInvalidated();
+}
+
+template <typename T>
+void SigList<T>::erase(QList<T>::iterator pos)
+{
+ T value = *pos;
+ int index = indexOf(*pos);
+ QList<T>::erase(pos);
+ onItemRemoved(value, index);
+}
+
+template <typename T>
+void SigList<T>::erase(QList<T>::iterator first, QList<T>::iterator last)
+{
+ QList<T> removedValues;
+ int firstIndex = indexOf(*first);
+
+ for (QList<T>::iterator iter = first; iter < last; iter++)
+ {
+ removedValues << *iter;
+ QList<T>::erase(iter);
+ }
+
+ onItemsRemoved(removedValues, firstIndex);
+}
+
+template <typename T>
+void SigList<T>::insert(int i, const T &t)
+{
+ QList<T>::insert(i, t);
+ onItemAdded(t, i);
+}
+
+template <typename T>
+void SigList<T>::insert(QList<T>::iterator before, const T &t)
+{
+ QList<T>::insert(before, t);
+ onItemAdded(t, indexOf(t));
+}
+
+template <typename T>
+void SigList<T>::move(int from, int to)
+{
+ const T &item = at(from);
+ QList<T>::move(from, to);
+ onItemMoved(item, from, to);
+}
+
+template <typename T>
+int SigList<T>::removeAll(const T &t)
+{
+ int retVal = QList<T>::removeAll(t);
+ onInvalidated();
+ return retVal;
+}
+
+template <typename T>
+bool SigList<T>::removeOne(const T &t)
+{
+ int index = indexOf(t);
+ if (QList<T>::removeOne(t))
+ {
+ onItemRemoved(t, index);
+ return true;
+ }
+ return false;
+}
+
+template <typename T>
+void SigList<T>::swap(QList<T> &other)
+{
+ QList<T>::swap(other);
+ onInvalidated();
+}
+
+template <typename T>
+void SigList<T>::swap(int i, int j)
+{
+ const T &item1 = at(i);
+ const T &item2 = at(j);
+ QList<T>::swap(i, j);
+ onItemMoved(item1, i, j);
+ onItemMoved(item2, j, i);
+}
+
+template <typename T>
+T SigList<T>::takeAt(int i)
+{
+ T val = QList<T>::takeAt(i);
+ onItemRemoved(val, i);
+ return val;
+}
+
+template <typename T>
+T SigList<T>::takeFirst()
+{
+ return takeAt(0);
+}
+
+template <typename T>
+T SigList<T>::takeLast()
+{
+ return takeAt(length() - 1);
+}
+
+template <typename T>
+QList<T> &SigList<T>::operator =(const QList<T> &other)
+{
+ QList<T>::operator =(other);
+ onInvalidated();
+ return *this;
+}