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Diffstat (limited to 'weather/src/gesturebox_p.h')
| -rw-r--r-- | weather/src/gesturebox_p.h | 120 |
1 files changed, 120 insertions, 0 deletions
diff --git a/weather/src/gesturebox_p.h b/weather/src/gesturebox_p.h new file mode 100644 index 0000000..0daa89e --- /dev/null +++ b/weather/src/gesturebox_p.h @@ -0,0 +1,120 @@ +/**************************************************************************** +** +** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: openBossa - INdT (renato.chencarek@openbossa.org) +** +** $QT_BEGIN_LICENSE:LGPL$ +** 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 Technology Preview License Agreement accompanying +** this package. +** +** 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 1.1, included in the file LGPL_EXCEPTION.txt in this package. +** +** If you have questions regarding the use of this file, please contact +** the openBossa stream from INdT (renato.chencarek@openbossa.org). +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef GESTUREBOX_P_H +#define GESTUREBOX_P_H + +#include <QObject> +#include <QPointer> +#include <QTime> +#include <QPoint> +#include <QPointF> +#include <QGraphicsView> + +#include "gesturebox.h" + +class GestureData : public QObject +{ +public: + inline GestureData(QPoint pos, const QList<GestureBox*> &boxes, QGraphicsView *view, + QList<QEvent*> &ignoreList, bool sendClickEvents); + + inline void release(QPoint pos); + inline void move(QPoint pos); + inline bool ended() const { return m_state == Ended; } + +private: + enum State {Pressed, Moving, Ended}; + State m_state; + QGraphicsView * const m_view; + const QPoint m_pressPos; + const QPointF m_scenePressPos; + const QList<GestureBox*> m_boxes; + QList<QEvent*> &m_ignoreList; + QTime m_time; + QPointF m_currentScenePos; + QPointF m_speed; + bool m_sendClickEvents; + + void sendClick(); +}; + +class ViewData +{ +public: + ViewData(QGraphicsView *view) : m_view(view), m_gesture(0), m_widget(view->viewport()) {} + inline ~ViewData(); + + inline bool press(QPoint pos); + inline bool release(QPoint pos); + inline bool move(QPoint pos); + + QGraphicsView *view() { return m_view; } + QWidget *widget() { return m_widget; } + inline bool ignoreEvent(QEvent *event); + + QList<GestureBox*> m_boxes; + +private: + QGraphicsView *const m_view; + QPointer<GestureData> m_gesture; + QList<QEvent*> m_ignored; + QWidget * const m_widget; + + inline QList<GestureBox*> getBoxList(QPoint pos); + inline bool startGesture(GestureBox *box, QPointF scenePos, bool &sendClick); +}; + +class GestureObserver : public QObject +{ + Q_OBJECT +public: + static inline GestureObserver *instance(); + inline void addBox(GestureBox *box); + inline void removeBox(GestureBox *box); + +protected: + bool eventFilter(QObject *object, QEvent *event); + +private: + QHash<QWidget*, ViewData*> m_views; + QHash<GestureBox*, ViewData*> m_boxes; + + GestureObserver() {} + ~GestureObserver() {} + ViewData *getViewData(QGraphicsView *view); + +private slots: + void viewDestroyed(); + +}; + +#endif // GESTUREBOX_P_H |
