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1 /**************************************************************************** |
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2 ** |
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3 ** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). |
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4 ** All rights reserved. |
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5 ** Contact: Nokia Corporation (qt-info@nokia.com) |
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6 ** |
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7 ** This file is part of the QtGui module of the Qt Toolkit. |
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8 ** |
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9 ** $QT_BEGIN_LICENSE:LGPL$ |
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10 ** No Commercial Usage |
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11 ** This file contains pre-release code and may not be distributed. |
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12 ** You may use this file in accordance with the terms and conditions |
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13 ** contained in the Technology Preview License Agreement accompanying |
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14 ** this package. |
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15 ** |
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16 ** GNU Lesser General Public License Usage |
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17 ** Alternatively, this file may be used under the terms of the GNU Lesser |
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18 ** General Public License version 2.1 as published by the Free Software |
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19 ** Foundation and appearing in the file LICENSE.LGPL included in the |
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20 ** packaging of this file. Please review the following information to |
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21 ** ensure the GNU Lesser General Public License version 2.1 requirements |
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22 ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. |
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23 ** |
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24 ** In addition, as a special exception, Nokia gives you certain additional |
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25 ** rights. These rights are described in the Nokia Qt LGPL Exception |
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26 ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. |
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27 ** |
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28 ** If you have questions regarding the use of this file, please contact |
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29 ** Nokia at qt-info@nokia.com. |
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30 ** |
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31 ** |
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32 ** |
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33 ** |
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34 ** |
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35 ** |
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36 ** |
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37 ** |
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38 ** $QT_END_LICENSE$ |
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39 ** |
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40 ****************************************************************************/ |
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41 |
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42 #import <Cocoa/Cocoa.h> |
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43 #import <private/qcocoaview_mac_p.h> |
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44 #include "qmacnativewidget_mac.h" |
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45 #include <private/qwidget_p.h> |
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46 |
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47 /*! |
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48 \class QMacNativeWidget |
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49 \since 4.5 |
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50 \brief The QMacNativeWidget class provides a widget for Mac OS X that provides a way to put Qt widgets into Carbon |
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51 or Cocoa hierarchies depending on how Qt was configured. |
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52 |
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53 \ingroup advanced |
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54 |
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55 On Mac OS X, there is a difference between a window and view; |
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56 normally expressed as widgets in Qt. Qt makes assumptions about its |
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57 parent-child hierarchy that make it complex to put an arbitrary Qt widget |
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58 into a hierarchy of "normal" views from Apple frameworks. QMacNativeWidget |
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59 bridges the gap between views and windows and makes it possible to put a |
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60 hierarchy of Qt widgets into a non-Qt window or view. |
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61 |
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62 QMacNativeWidget pretends it is a window (i.e. isWindow() will return true), |
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63 but it cannot be shown on its own. It needs to be put into a window |
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64 when it is created or later through a native call. |
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65 |
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66 QMacNativeWidget works for either Carbon or Cocoa depending on how Qt was configured. If Qt is |
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67 using Carbon, QMacNativeWidget will embed into Carbon hierarchies. If Qt is |
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68 using Cocoa, QMacNativeWidget embeds into Cocoa hierarchies. |
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69 |
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70 Here is an example of putting a QPushButton into a NSWindow: |
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71 |
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72 \snippet doc/src/snippets/qmacnativewidget/main.mm 0 |
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73 |
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74 On Carbon, this would do the equivalent: |
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75 |
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76 \snippet doc/src/snippets/qmacnativewidget/main.mm 1 |
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77 |
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78 Note that QMacNativeWidget requires knowledge of Carbon or Cocoa. All it |
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79 does is get the Qt hierarchy into a window not owned by Qt. It is then up |
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80 to the programmer to ensure it is placed correctly in the window and |
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81 responds correctly to events. |
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82 */ |
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83 |
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84 QT_BEGIN_NAMESPACE |
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85 |
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86 class QMacNativeWidgetPrivate : public QWidgetPrivate |
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87 { |
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88 }; |
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89 |
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90 extern OSViewRef qt_mac_create_widget(QWidget *widget, QWidgetPrivate *widgetPrivate, OSViewRef parent); |
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91 |
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92 |
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93 /*! |
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94 Create a QMacNativeWidget with \a parentView as its "superview" (i.e., |
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95 parent). The \a parentView is either an HIViewRef if Qt is using Carbon or |
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96 a NSView pointer if Qt is using Cocoa. |
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97 */ |
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98 QMacNativeWidget::QMacNativeWidget(void *parentView) |
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99 : QWidget(*new QMacNativeWidgetPrivate, 0, Qt::Window) |
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100 { |
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101 Q_D(QMacNativeWidget); |
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102 OSViewRef myView = qt_mac_create_widget(this, d, OSViewRef(parentView)); |
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103 |
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104 d->topData()->embedded = true; |
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105 create(WId(myView), false, false); |
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106 setPalette(QPalette(Qt::transparent)); |
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107 setAttribute(Qt::WA_SetPalette, false); |
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108 setAttribute(Qt::WA_LayoutUsesWidgetRect); |
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109 } |
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110 |
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111 /*! |
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112 Destroy the QMacNativeWidget. |
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113 */ |
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114 QMacNativeWidget::~QMacNativeWidget() |
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115 { |
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116 } |
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117 |
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118 /*! |
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119 \reimp |
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120 */ |
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121 QSize QMacNativeWidget::sizeHint() const |
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122 { |
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123 return QSize(200, 200); |
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124 } |
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125 /*! |
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126 \reimp |
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127 */ |
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128 bool QMacNativeWidget::event(QEvent *ev) |
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129 { |
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130 return QWidget::event(ev); |
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131 } |
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132 |
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133 QT_END_NAMESPACE |