Refactored gesture api

Rewritten the api almost from scratch, making it simplier and more
flexible at the same time.

The current implementation will not have complex gseturemanager class
inside Qt, but the QGesture base class, which represents both a
gesture recognizer and a gesture itself with a set of properties. A
set of common gestures that can use used in third-party applications
(and in Qt itself internally) is supposed to be found in
qstandardgestures.h, and a base class for user-defined gestures is in
qgesture.h

Gesture implementation for Pan on Windows7 has also been added as a
reference implementation for platform gestures.

1 files changed, 102 insertions, 0 deletions

diff --git a/src/gui/kernel/qstandardgestures.h b/src/gui/kernel/qstandardgestures.h
new file mode 100644
index 0000000..db96ef6
--- /dev/null
+++ b/src/gui/kernel/qstandardgestures.h
@@ -0,0 +1,102 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the QtGui module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain
+** additional rights. These rights are described in the Nokia Qt LGPL
+** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at http://www.qtsoftware.com/contact.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QSTANDARDGESTURES_H
+#define QSTANDARDGESTURES_H
+
+#include "qevent.h"
+#include "qbasictimer.h"
+#include "qdebug.h"
+
+#include "qgesture.h"
+
+QT_BEGIN_HEADER
+
+QT_BEGIN_NAMESPACE
+
+QT_MODULE(Gui)
+
+class QPanGesturePrivate;
+class Q_GUI_EXPORT QPanGesture : public QGesture
+{
+    Q_OBJECT
+    Q_DECLARE_PRIVATE(QPanGesture)
+
+    Q_PROPERTY(QSize totalOffset READ totalOffset)
+    Q_PROPERTY(QSize lastOffset READ lastOffset)
+
+public:
+    QPanGesture(QWidget *parent);
+
+    bool filterEvent(QEvent *event);
+    void reset();
+
+    QSize totalOffset() const;
+    QSize lastOffset() const;
+
+protected:
+    bool event(QEvent *event);
+
+private:
+    friend class QWidget;
+};
+
+class QTapAndHoldGesturePrivate;
+class Q_GUI_EXPORT QTapAndHoldGesture : public QGesture
+{
+    Q_OBJECT
+    Q_DECLARE_PRIVATE(QTapAndHoldGesture)
+
+public:
+    QTapAndHoldGesture(QWidget *parent);
+
+    bool filterEvent(QEvent *event);
+    void reset();
+
+protected:
+    void timerEvent(QTimerEvent *event);
+};
+
+QT_END_NAMESPACE
+
+QT_END_HEADER
+
+#endif // QSTANDARDGESTURES_H