1
/****************************************************************************
3
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
4
** All rights reserved.
5
** Contact: Nokia Corporation (qt-info@nokia.com)
7
** This file is part of the QtGui module of the Qt Toolkit.
9
** $QT_BEGIN_LICENSE:LGPL$
10
** No Commercial Usage
11
** This file contains pre-release code and may not be distributed.
12
** You may use this file in accordance with the terms and conditions
13
** contained in the Technology Preview License Agreement accompanying
16
** GNU Lesser General Public License Usage
17
** Alternatively, this file may be used under the terms of the GNU Lesser
18
** General Public License version 2.1 as published by the Free Software
19
** Foundation and appearing in the file LICENSE.LGPL included in the
20
** packaging of this file. Please review the following information to
21
** ensure the GNU Lesser General Public License version 2.1 requirements
22
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
24
** In addition, as a special exception, Nokia gives you certain additional
25
** rights. These rights are described in the Nokia Qt LGPL Exception
26
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
28
** If you have questions regarding the use of this file, please contact
29
** Nokia at qt-info@nokia.com.
40
****************************************************************************/
42
#import <Cocoa/Cocoa.h>
43
#import <private/qcocoaview_mac_p.h>
44
#include "qmacnativewidget_mac.h"
45
#include <private/qwidget_p.h>
48
\class QMacNativeWidget
50
\brief The QMacNativeWidget class provides a widget for Mac OS X that provides a way to put Qt widgets into Carbon
51
or Cocoa hierarchies depending on how Qt was configured.
55
On Mac OS X, there is a difference between a window and view;
56
normally expressed as widgets in Qt. Qt makes assumptions about its
57
parent-child hierarchy that make it complex to put an arbitrary Qt widget
58
into a hierarchy of "normal" views from Apple frameworks. QMacNativeWidget
59
bridges the gap between views and windows and makes it possible to put a
60
hierarchy of Qt widgets into a non-Qt window or view.
62
QMacNativeWidget pretends it is a window (i.e. isWindow() will return true),
63
but it cannot be shown on its own. It needs to be put into a window
64
when it is created or later through a native call.
66
QMacNativeWidget works for either Carbon or Cocoa depending on how Qt was configured. If Qt is
67
using Carbon, QMacNativeWidget will embed into Carbon hierarchies. If Qt is
68
using Cocoa, QMacNativeWidget embeds into Cocoa hierarchies.
70
Here is an example of putting a QPushButton into a NSWindow:
72
\snippet doc/src/snippets/qmacnativewidget/main.mm 0
74
On Carbon, this would do the equivalent:
76
\snippet doc/src/snippets/qmacnativewidget/main.mm 1
78
Note that QMacNativeWidget requires knowledge of Carbon or Cocoa. All it
79
does is get the Qt hierarchy into a window not owned by Qt. It is then up
80
to the programmer to ensure it is placed correctly in the window and
81
responds correctly to events.
86
class QMacNativeWidgetPrivate : public QWidgetPrivate
90
extern OSViewRef qt_mac_create_widget(QWidget *widget, QWidgetPrivate *widgetPrivate, OSViewRef parent);
94
Create a QMacNativeWidget with \a parentView as its "superview" (i.e.,
95
parent). The \a parentView is either an HIViewRef if Qt is using Carbon or
96
a NSView pointer if Qt is using Cocoa.
98
QMacNativeWidget::QMacNativeWidget(void *parentView)
99
: QWidget(*new QMacNativeWidgetPrivate, 0, Qt::Window)
101
Q_D(QMacNativeWidget);
102
OSViewRef myView = qt_mac_create_widget(this, d, OSViewRef(parentView));
104
d->topData()->embedded = true;
105
create(WId(myView), false, false);
106
setPalette(QPalette(Qt::transparent));
107
setAttribute(Qt::WA_SetPalette, false);
108
setAttribute(Qt::WA_LayoutUsesWidgetRect);
112
Destroy the QMacNativeWidget.
114
QMacNativeWidget::~QMacNativeWidget()
121
QSize QMacNativeWidget::sizeHint() const
123
return QSize(200, 200);
128
bool QMacNativeWidget::event(QEvent *ev)
130
return QWidget::event(ev);