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
144
145
146
147
148
149
150
151
|
/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the QtDeclarative 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 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
** Nokia at qt-info@nokia.com.
**
**
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QFXPATHVIEW_P_H
#define QFXPATHVIEW_P_H
//
// W A R N I N G
// -------------
//
// This file is not part of the Qt API. It exists purely as an
// implementation detail. This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
//
#include "qdatetime.h"
#include "qfxpathview.h"
#include "qfxitem_p.h"
#include "qfxvisualitemmodel.h"
#include "qml.h"
#include "private/qmlanimation_p.h"
QT_BEGIN_NAMESPACE
typedef struct PathViewItem{
int index;
QFxItem* item;
}PathViewItem;
class QFxPathViewPrivate : public QFxItemPrivate
{
Q_DECLARE_PUBLIC(QFxPathView)
public:
QFxPathViewPrivate()
: path(0), currentIndex(0), startPc(0), lastDist(0)
, lastElapsed(0), stealMouse(false), ownModel(false), activeItem(0)
, snapPos(0), dragMargin(0), moveOffset(this, &QFxPathViewPrivate::setOffset)
, firstIndex(0), pathItems(-1), pathOffset(0), requestedIndex(-1), model(0)
, moveReason(Other)
{
fixupOffsetEvent = QmlTimeLineEvent::timeLineEvent<QFxPathViewPrivate, &QFxPathViewPrivate::fixOffset>(&moveOffset, this);
}
void init()
{
Q_Q(QFxPathView);
_offset = 0;
q->setAcceptedMouseButtons(Qt::LeftButton);
q->setFlag(QGraphicsItem::ItemIsFocusScope);
q->setFiltersChildEvents(true);
q->connect(&tl, SIGNAL(updated()), q, SLOT(ticked()));
}
QFxItem *getItem(int modelIndex) {
Q_Q(QFxPathView);
requestedIndex = modelIndex;
QFxItem *item = model->item(modelIndex);
if (item)
item->setParentItem(q);
requestedIndex = -1;
return item;
}
void releaseItem(QFxItem *item) {
model->release(item);
}
bool isValid() const {
return model && model->count() > 0 && model->isValid() && path;
}
int calcCurrentIndex();
void updateCurrent();
void fixOffset();
void setOffset(qreal offset);
void regenerate();
void updateItem(QFxItem *, qreal);
void snapToCurrent();
QPointF pointNear(const QPointF &point, qreal *nearPercent=0) const;
QFxPath *path;
int currentIndex;
qreal startPc;
QPointF startPoint;
qreal lastDist;
int lastElapsed;
qreal _offset;
bool stealMouse : 1;
bool ownModel : 1;
QTime lastPosTime;
QPointF lastPos;
QFxItem *activeItem;
qreal snapPos;
qreal dragMargin;
QmlTimeLine tl;
QmlTimeLineValueProxy<QFxPathViewPrivate> moveOffset;
QmlTimeLineEvent fixupOffsetEvent;
int firstIndex;
int pathItems;
int pathOffset;
int requestedIndex;
QList<QFxItem *> items;
QFxVisualModel *model;
QVariant modelVariant;
enum MovementReason { Other, Key, Mouse };
MovementReason moveReason;
};
QT_END_NAMESPACE
#endif
|
