summaryrefslogtreecommitdiffstats
path: root/tools/designer/src/lib/shared/layout_p.h
blob: c683a5e27253b834f9c99574af398166e6d11899 (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
144
145
146
147
148
149
150
151
152
/****************************************************************************
**
** Copyright (C) 2010 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.
**
**
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/

//
//  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 LAYOUT_H
#define LAYOUT_H

#include "shared_global_p.h"
#include "layoutinfo_p.h"

#include <QtCore/QPointer>
#include <QtCore/QObject>
#include <QtCore/QMap>
#include <QtCore/QHash>

#include <QtGui/QLayout>
#include <QtGui/QGridLayout>
#include <QtGui/QWidget>

QT_BEGIN_NAMESPACE

class QDesignerFormWindowInterface;

namespace qdesigner_internal {
class QDESIGNER_SHARED_EXPORT Layout : public QObject
{
    Q_OBJECT
    Q_DISABLE_COPY(Layout)
protected:
    Layout(const QWidgetList &wl, QWidget *p, QDesignerFormWindowInterface *fw, QWidget *lb, LayoutInfo::Type layoutType);

public:
    static  Layout* createLayout(const QWidgetList &widgets,  QWidget *parentWidget,
                                 QDesignerFormWindowInterface *fw,
                                 QWidget *layoutBase, LayoutInfo::Type layoutType);

    virtual ~Layout();

    virtual void sort() = 0;
    virtual void doLayout() = 0;

    virtual void setup();
    virtual void undoLayout();
    virtual void breakLayout();

    const QWidgetList &widgets() const { return m_widgets; }
    QWidget *parentWidget() const      { return m_parentWidget; }
    QWidget *layoutBaseWidget() const  { return m_layoutBase; }

    /* Determines whether instances of QLayoutWidget are unmanaged/hidden
     * after breaking a layout. Default is true. Can be turned off when
      * morphing */
    bool reparentLayoutWidget() const  { return m_reparentLayoutWidget; }
    void setReparentLayoutWidget(bool v) {  m_reparentLayoutWidget = v; }

protected:
    virtual void finishLayout(bool needMove, QLayout *layout = 0);
    virtual bool prepareLayout(bool &needMove, bool &needReparent);

    void setWidgets(const  QWidgetList &widgets) { m_widgets = widgets; }
    QLayout *createLayout(int type);
    void reparentToLayoutBase(QWidget *w);

private slots:
    void widgetDestroyed();

private:
    QWidgetList m_widgets;
    QWidget *m_parentWidget;
    typedef QHash<QWidget *, QRect> WidgetGeometryHash;
    WidgetGeometryHash m_geometries;
    QWidget *m_layoutBase;
    QDesignerFormWindowInterface *m_formWindow;
    const LayoutInfo::Type m_layoutType;
    QPoint m_startPoint;
    QRect m_oldGeometry;

    bool m_reparentLayoutWidget;
    const bool m_isBreak;
};

namespace Utils
{

inline int indexOfWidget(QLayout *layout, QWidget *widget)
{
    int index = 0;
    while (QLayoutItem *item = layout->itemAt(index)) {
        if (item->widget() == widget)
            return index;

        ++index;
    }

    return -1;
}

} // namespace Utils

} // namespace qdesigner_internal

QT_END_NAMESPACE

#endif // LAYOUT_H