aboutsummaryrefslogtreecommitdiffstats
path: root/tools/qmleasing/splineeditor.h
blob: 52e81402f2aa426e3bb1bab7b55af1e128844e8c (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
/****************************************************************************
**
** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the tools applications of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Digia.  For licensing terms and
** conditions see http://qt.digia.com/licensing.  For further information
** use the contact form at http://qt.digia.com/contact-us.
**
** 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, Digia gives you certain additional
** rights.  These rights are described in the Digia Qt LGPL Exception
** version 1.1, 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.
**
**
** $QT_END_LICENSE$
**
****************************************************************************/

#ifndef SPLINEEDITOR_H
#define SPLINEEDITOR_H

#include <QWidget>
#include <QMenu>
#include <QAction>
#include <QScrollArea>

#include <QEasingCurve>
#include <QHash>

class SegmentProperties;

class SplineEditor : public QWidget
{
    Q_OBJECT

     Q_PROPERTY(QEasingCurve easingCurve READ easingCurve WRITE setEasingCurve NOTIFY easingCurveChanged);

public:
    explicit SplineEditor(QWidget *parent = 0);
    QString generateCode();
    QStringList presetNames() const;
    QWidget *pointListWidget();

    void setControlPoint(int index, const QPointF &point)
    {
        m_controlPoints[index] = point;
        update();
    }

    void setSmooth(int index, bool smooth)
    {
        m_smoothAction->setChecked(smooth);
        smoothPoint(index * 3 + 2);
        //update();
    }

signals:
    void easingCurveChanged();
    void easingCurveCodeChanged(const QString &code);


public slots:
    void setEasingCurve(const QEasingCurve &easingCurve);
    void setPreset(const QString &name);
    void setEasingCurve(const QString &code);

protected:
    void paintEvent(QPaintEvent *);
    void mousePressEvent(QMouseEvent *);
    void mouseMoveEvent(QMouseEvent *);
    void mouseReleaseEvent(QMouseEvent *);
    void contextMenuEvent(QContextMenuEvent *);

    void invalidate();
    void invalidateSmoothList();
    void invalidateSegmentProperties();

    QEasingCurve easingCurve() const
    { return m_easingCurve; }

    QHash<QString, QEasingCurve> presets() const;

private:
    int findControlPoint(const QPoint &point);
    bool isSmooth(int i) const;

    void smoothPoint( int index);
    void cornerPoint( int index);
    void deletePoint(int index);
    void addPoint(const QPointF point);

    void initPresets();

    void setupPointListWidget();

    bool isControlPointSmooth(int i) const;

    QEasingCurve m_easingCurve;
    QVector<QPointF> m_controlPoints;
    QVector<bool> m_smoothList;
    int m_numberOfSegments;
    int m_activeControlPoint;
    bool m_mouseDrag;
    QPoint m_mousePress;
    QHash<QString, QEasingCurve> m_presets;

    QMenu *m_pointContextMenu;
    QMenu *m_curveContextMenu;
    QAction *m_deleteAction;
    QAction *m_smoothAction;
    QAction *m_cornerAction;
    QAction *m_addPoint;

    QScrollArea *m_pointListWidget;

    QList<SegmentProperties*> m_segmentProperties;
    bool m_block;
};

#endif // SPLINEEDITOR_H