Unity 8
MousePointer.h
1 /*
2  * Copyright (C) 2015-2016 Canonical, Ltd.
3  *
4  * This program is free software: you can redistribute it and/or modify it under
5  * the terms of the GNU Lesser General Public License version 3, as published by
6  * the Free Software Foundation.
7  *
8  * This program is distributed in the hope that it will be useful, but WITHOUT
9  * ANY WARRANTY; without even the implied warranties of MERCHANTABILITY,
10  * SATISFACTORY QUALITY, or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
11  * Lesser General Public License for more details.
12  *
13  * You should have received a copy of the GNU Lesser General Public License
14  * along with this program. If not, see <http://www.gnu.org/licenses/>.
15  */
16 
17 #ifndef MOUSEPOINTER_H
18 #define MOUSEPOINTER_H
19 
20 // Qt
21 #include <QPointer>
22 #include <QWindow>
23 #include <QScreen>
24 
25 // Unity API
26 #include <unity/shell/application/MirMousePointerInterface.h>
27 
28 class MousePointer : public MirMousePointerInterface {
29  Q_OBJECT
30 public:
31  MousePointer(QQuickItem *parent = nullptr);
32 
33  void setCursorName(const QString &qtCursorName) override;
34  QString cursorName() const override { return m_cursorName; }
35 
36  void setThemeName(const QString &themeName) override;
37  QString themeName() const override { return m_themeName; }
38 
39  void setCustomCursor(const QCursor &) override;
40 
41 public Q_SLOTS:
42  void handleMouseEvent(ulong timestamp, QPointF movement, Qt::MouseButtons buttons,
43  Qt::KeyboardModifiers modifiers) override;
44  void handleWheelEvent(ulong timestamp, QPoint angleDelta, Qt::KeyboardModifiers modifiers) override;
45 
46 Q_SIGNALS:
47  void pushedLeftBoundary(qreal amount, Qt::MouseButtons buttons);
48  void pushedRightBoundary(qreal amount, Qt::MouseButtons buttons);
49  void mouseMoved();
50 
51 protected:
52  void itemChange(ItemChange change, const ItemChangeData &value) override;
53 
54 private Q_SLOTS:
55  void registerScreen(QScreen *screen);
56 
57 private:
58  void registerWindow(QWindow *window);
59 
60  QPointer<QWindow> m_registeredWindow;
61  QPointer<QScreen> m_registeredScreen;
62  QString m_cursorName;
63  QString m_themeName;
64 
65  // Accumulated, unapplied, mouse movement.
66  QPointF m_accumulatedMovement;
67 };
68 
69 #endif // MOUSEPOINTER_H