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
|
/****************************************************************************
**
** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: http://www.qt-project.org/
**
** This file is part of the Qt Designer of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** GNU Lesser General Public License Usage
** 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.
**
** 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.
**
** Other Usage
** Alternatively, this file may be used in accordance with the terms and
** conditions contained in a signed written agreement between you and Nokia.
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
//
// W A R N I N G
// -------------
//
// This file is not part of the Qt API. It exists for the convenience
// of Qt Designer. This header
// file may change from version to version without notice, or even be removed.
//
// We mean it.
//
#ifndef QDESIGNER_DNDITEM_H
#define QDESIGNER_DNDITEM_H
#include "shared_global_p.h"
#include <QtDesigner/abstractdnditem.h>
#include <QtCore/QPoint>
#include <QtCore/QList>
#include <QtCore/QMimeData>
QT_BEGIN_NAMESPACE
class QDrag;
class QImage;
class QDropEvent;
namespace qdesigner_internal {
class QDESIGNER_SHARED_EXPORT QDesignerDnDItem: public QDesignerDnDItemInterface
{
public:
explicit QDesignerDnDItem(DropType type, QWidget *source = 0);
virtual ~QDesignerDnDItem();
virtual DomUI *domUi() const;
virtual QWidget *decoration() const;
virtual QWidget *widget() const;
virtual QPoint hotSpot() const;
virtual QWidget *source() const;
virtual DropType type() const;
protected:
void setDomUi(DomUI *dom_ui);
void init(DomUI *ui, QWidget *widget, QWidget *decoration, const QPoint &global_mouse_pos);
private:
QWidget *m_source;
const DropType m_type;
const QPoint m_globalStartPos;
DomUI *m_dom_ui;
QWidget *m_widget;
QWidget *m_decoration;
QPoint m_hot_spot;
Q_DISABLE_COPY(QDesignerDnDItem)
};
// Mime data for use with designer drag and drop operations.
class QDESIGNER_SHARED_EXPORT QDesignerMimeData : public QMimeData {
Q_OBJECT
public:
typedef QList<QDesignerDnDItemInterface *> QDesignerDnDItems;
virtual ~QDesignerMimeData();
const QDesignerDnDItems &items() const { return m_items; }
// Execute a drag and drop operation.
static Qt::DropAction execDrag(const QDesignerDnDItems &items, QWidget * dragSource);
QPoint hotSpot() const { return m_hotSpot; }
// Move the decoration. Required for drops over form windows as the position
// is derived from the decoration position.
void moveDecoration(const QPoint &globalPos) const;
// For a move operation, create the undo command sequence to remove
// the widgets from the source form.
static void removeMovedWidgetsFromSourceForm(const QDesignerDnDItems &items);
// Accept an event with the proper action.
void acceptEvent(QDropEvent *e) const;
// Helper to accept an event with the desired action.
static void acceptEventWithAction(Qt::DropAction desiredAction, QDropEvent *e);
private:
QDesignerMimeData(const QDesignerDnDItems &items, QDrag *drag);
Qt::DropAction proposedDropAction() const;
static void setImageTransparency(QImage &image, int alpha);
const QDesignerDnDItems m_items;
QPoint m_globalStartPos;
QPoint m_hotSpot;
};
} // namespace qdesigner_internal
QT_END_NAMESPACE
#endif // QDESIGNER_DNDITEM_H
|
