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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 Qt3Support 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 #include "q3hbox.h" |
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43 #include "qlayout.h" |
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44 #include "qapplication.h" |
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45 |
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46 QT_BEGIN_NAMESPACE |
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47 |
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48 /*! |
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49 \class Q3HBox |
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50 \brief The Q3HBox widget provides horizontal geometry management |
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51 for its child widgets. |
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52 |
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53 \compat |
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54 |
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55 All the horizontal box's child widgets will be placed alongside |
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56 each other and sized according to their sizeHint()s. |
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57 |
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58 Use setMargin() to add space around the edges, and use |
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59 setSpacing() to add space between the widgets. Use |
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60 setStretchFactor() if you want the widgets to be different sizes |
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61 in proportion to one another. (See \link layout.html |
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62 Layouts\endlink for more information on stretch factors.) |
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63 |
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64 \img qhbox-m.png Q3HBox |
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65 |
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66 \sa QHBoxLayout Q3VBox Q3Grid |
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67 */ |
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68 |
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69 |
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70 /*! |
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71 Constructs an hbox widget with parent \a parent, called \a name. |
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72 The parent, name and widget flags, \a f, are passed to the Q3Frame |
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73 constructor. |
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74 */ |
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75 Q3HBox::Q3HBox(QWidget *parent, const char *name, Qt::WindowFlags f) |
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76 :Q3Frame(parent, name, f) |
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77 { |
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78 (new QHBoxLayout(this, frameWidth(), frameWidth(), name))->setAutoAdd(true); |
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79 } |
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80 |
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81 |
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82 /*! |
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83 Constructs a horizontal hbox if \a horizontal is TRUE, otherwise |
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84 constructs a vertical hbox (also known as a vbox). |
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85 |
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86 This constructor is provided for the QVBox class. You should never |
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87 need to use it directly. |
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88 |
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89 The \a parent, \a name and widget flags, \a f, are passed to the |
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90 Q3Frame constructor. |
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91 */ |
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92 |
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93 Q3HBox::Q3HBox(bool horizontal, QWidget *parent , const char *name, Qt::WindowFlags f) |
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94 :Q3Frame(parent, name, f) |
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95 { |
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96 (new QBoxLayout(this, horizontal ? QBoxLayout::LeftToRight : QBoxLayout::Down, |
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97 frameWidth(), frameWidth(), name))->setAutoAdd(true); |
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98 } |
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99 |
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100 /*!\reimp |
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101 */ |
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102 void Q3HBox::frameChanged() |
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103 { |
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104 if (layout()) |
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105 layout()->setMargin(frameWidth()); |
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106 } |
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107 |
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108 |
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109 /*! |
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110 Sets the spacing between the child widgets to \a space. |
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111 */ |
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112 |
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113 void Q3HBox::setSpacing(int space) |
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114 { |
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115 if (layout()) |
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116 layout()->setSpacing(space); |
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117 } |
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118 |
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119 |
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120 /*! |
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121 \reimp |
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122 */ |
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123 |
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124 QSize Q3HBox::sizeHint() const |
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125 { |
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126 QWidget *mThis = (QWidget*)this; |
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127 QApplication::sendPostedEvents(mThis, QEvent::ChildInserted); |
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128 return Q3Frame::sizeHint(); |
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129 } |
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130 |
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131 /*! |
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132 Sets the stretch factor of widget \a w to \a stretch. Returns true if |
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133 \a w is found. Otherwise returns false. |
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134 |
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135 \sa QBoxLayout::setStretchFactor() \link layout.html Layouts\endlink |
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136 */ |
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137 bool Q3HBox::setStretchFactor(QWidget* w, int stretch) |
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138 { |
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139 QApplication::sendPostedEvents(this, QEvent::ChildInserted); |
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140 if (QBoxLayout *lay = qobject_cast<QBoxLayout *>(layout())) |
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141 return lay->setStretchFactor(w, stretch); |
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142 return false; |
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143 } |
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144 |
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145 QT_END_NAMESPACE |