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
|
/****************************************************************************
**
** 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 Qt Designer 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 WIDGETSELECTION_H
#define WIDGETSELECTION_H
#include "formeditor_global.h"
#include <invisible_widget_p.h>
#include <QtCore/QHash>
#include <QtCore/QPointer>
QT_BEGIN_NAMESPACE
class QDesignerFormEditorInterface;
class QMouseEvent;
class QPaintEvent;
namespace qdesigner_internal {
class FormWindow;
class WidgetSelection;
class QT_FORMEDITOR_EXPORT WidgetHandle: public InvisibleWidget
{
Q_OBJECT
public:
enum Type
{
LeftTop,
Top,
RightTop,
Right,
RightBottom,
Bottom,
LeftBottom,
Left,
TypeCount
};
WidgetHandle(FormWindow *parent, Type t, WidgetSelection *s);
void setWidget(QWidget *w);
void setActive(bool a);
void updateCursor();
void setEnabled(bool) {}
QDesignerFormEditorInterface *core() const;
protected:
void paintEvent(QPaintEvent *e);
void mousePressEvent(QMouseEvent *e);
void mouseMoveEvent(QMouseEvent *e);
void mouseReleaseEvent(QMouseEvent *e);
private:
void changeGridLayoutItemSpan();
void changeFormLayoutItemSpan();
void trySetGeometry(QWidget *w, int x, int y, int width, int height);
void tryResize(QWidget *w, int width, int height);
private:
QWidget *m_widget;
const Type m_type;
QPoint m_origPressPos;
FormWindow *m_formWindow;
WidgetSelection *m_sel;
QRect m_geom, m_origGeom;
bool m_active;
};
class QT_FORMEDITOR_EXPORT WidgetSelection: public QObject
{
Q_OBJECT
public:
WidgetSelection(FormWindow *parent);
void setWidget(QWidget *w);
bool isUsed() const;
void updateActive();
void updateGeometry();
void hide();
void show();
void update();
QWidget *widget() const;
QDesignerFormEditorInterface *core() const;
virtual bool eventFilter(QObject *object, QEvent *event);
enum WidgetState { UnlaidOut, LaidOut, ManagedGridLayout, ManagedFormLayout };
static WidgetState widgetState(const QDesignerFormEditorInterface *core, QWidget *w);
private:
WidgetHandle *m_handles[WidgetHandle::TypeCount];
QPointer<QWidget> m_widget;
FormWindow *m_formWindow;
};
} // namespace qdesigner_internal
QT_END_NAMESPACE
#endif // WIDGETSELECTION_H
|
