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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 "q3tabdialog.h" |
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43 |
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44 #include "qtabbar.h" |
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45 #include "qtabwidget.h" |
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46 #include "qpushbutton.h" |
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47 #include "qpainter.h" |
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48 #include "qpixmap.h" |
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49 #include "qapplication.h" |
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50 #include "q3widgetstack.h" |
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51 #include "qlayout.h" |
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52 #include "qevent.h" |
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53 |
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54 QT_BEGIN_NAMESPACE |
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55 |
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56 using namespace Qt; |
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57 |
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58 /*! |
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59 \class Q3TabDialog |
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60 \compat |
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61 \brief The Q3TabDialog class provides a stack of tabbed widgets. |
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62 |
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63 A tabbed dialog is one in which several "tab pages" are available. |
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64 By clicking on a tab page's tab or by pressing the indicated |
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65 Alt+\e{letter} key combination, the user can select which tab page |
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66 they want to use. |
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67 |
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68 Q3TabDialog provides a tab bar consisting of single row of tabs at |
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69 the top; each tab has an associated widget which is that tab's |
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70 tab page. In addition, Q3TabDialog provides an OK button and the |
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71 following optional buttons: Apply, Cancel, Defaults and Help. |
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72 |
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73 The normal way to use Q3TabDialog is to do the following in the |
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74 constructor: |
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75 \list 1 |
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76 \i Create a Q3TabDialog. |
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77 \i Create a QWidget for each of the pages in the tab dialog, insert |
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78 children into it, set up geometry management for it, and use |
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79 addTab() (or insertTab()) to set up a tab and keyboard accelerator |
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80 for it. |
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81 \i Set up the buttons for the tab dialog using setOkButton(), |
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82 setApplyButton(), setDefaultsButton(), setCancelButton() and |
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83 setHelpButton(). |
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84 \i Connect to the signals and slots. |
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85 \endlist |
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86 |
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87 If you don't call addTab() the page you have created will not be |
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88 visible. Don't confuse the object name you supply to the |
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89 QWidget constructor and the tab label you supply to addTab(); |
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90 addTab() takes user-visible name that appears on the widget's tab |
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91 and may identify an accelerator, whereas the widget name is used |
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92 primarily for debugging. |
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93 |
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94 Almost all applications have to connect the applyButtonPressed() |
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95 signal to something. applyButtonPressed() is emitted when either OK |
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96 or Apply is clicked, and your slot must copy the dialog's state into |
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97 the application. |
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98 |
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99 There are also several other signals which may be useful: |
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100 \list |
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101 \i cancelButtonPressed() is emitted when the user clicks Cancel. |
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102 \i defaultButtonPressed() is emitted when the user clicks Defaults; |
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103 the slot it is connected to should reset the state of the dialog to |
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104 the application defaults. |
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105 \i helpButtonPressed() is emitted when the user clicks Help. |
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106 \i aboutToShow() is emitted at the start of show(); if there is any |
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107 chance that the state of the application may change between the |
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108 creation of the tab dialog and the time show() is called, you must |
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109 connect this signal to a slot that resets the state of the dialog. |
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110 \i currentChanged() is emitted when the user selects a page. |
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111 \endlist |
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112 |
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113 Each tab is either enabled or disabled at any given time (see |
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114 setTabEnabled()). If a tab is enabled the tab text is drawn in |
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115 black and the user can select that tab. If it is disabled the tab |
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116 is drawn in a different way and the user cannot select that tab. |
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117 Note that even if a tab is disabled, the page can still be visible; |
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118 for example, if all of the tabs happen to be disabled. |
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119 |
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120 You can change a tab's label and iconset using changeTab(). A tab |
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121 page can be removed with removePage() and shown with showPage(). The |
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122 current page is given by currentPage(). |
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123 |
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124 Q3TabDialog does not support tabs on the sides or bottom, nor can |
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125 you set or retrieve the visible page. If you need more functionality |
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126 than Q3TabDialog provides, consider creating a QDialog and using a |
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127 QTabBar with QTabWidgets. |
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128 |
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129 Most of the functionality in Q3TabDialog is provided by a QTabWidget. |
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130 */ |
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131 |
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132 /*! |
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133 \fn void Q3TabDialog::selected(const QString &name) |
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134 |
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135 This signal is emitted whenever a tab is selected (raised), |
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136 including during the first show(). \a name is the name of the |
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137 selected tab. |
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138 |
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139 \sa raise() |
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140 */ |
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141 |
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142 /*! \fn void Q3TabDialog::currentChanged(QWidget *widget) |
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143 |
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144 This signal is emitted whenever the current page changes. \a widget |
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145 is the new current page. |
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146 |
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147 \sa currentPage(), showPage(), tabLabel() |
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148 */ |
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149 |
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150 class Q3TabDialogPrivate |
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151 { |
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152 public: |
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153 Q3TabDialogPrivate(); |
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154 |
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155 QTabWidget* tw; |
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156 |
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157 QPushButton * ok; |
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158 QPushButton * cb; |
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159 QPushButton * db; |
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160 QPushButton * hb; |
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161 QPushButton * ab; |
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162 |
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163 QBoxLayout * tll; |
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164 }; |
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165 |
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166 Q3TabDialogPrivate::Q3TabDialogPrivate() |
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167 : tw(0), |
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168 ok(0), cb(0), db(0), hb(0), ab(0), |
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169 tll(0) |
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170 { } |
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171 |
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172 /*! |
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173 Constructs a Q3TabDialog with only an OK button. |
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174 The \a parent, \a name, \a modal and widget flag, \a f, arguments |
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175 are passed on to the QDialog constructor. |
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176 */ |
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177 |
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178 Q3TabDialog::Q3TabDialog(QWidget *parent, const char *name, bool modal, Qt::WindowFlags f) |
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179 : QDialog(parent, name, modal, f) |
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180 { |
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181 d = new Q3TabDialogPrivate; |
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182 Q_CHECK_PTR(d); |
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183 |
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184 d->tw = new QTabWidget(this, "tab widget"); |
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185 connect (d->tw, SIGNAL (selected(QString)), this, SIGNAL(selected(QString))); |
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186 connect (d->tw, SIGNAL (currentChanged(QWidget*)), this, SIGNAL(currentChanged(QWidget*))); |
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187 |
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188 d->ok = new QPushButton(this, "ok"); |
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189 Q_CHECK_PTR(d->ok); |
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190 d->ok->setText(tr("OK")); |
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191 d->ok->setDefault(true); |
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192 connect(d->ok, SIGNAL(clicked()), |
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193 this, SIGNAL(applyButtonPressed())); |
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194 connect(d->ok, SIGNAL(clicked()), |
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195 this, SLOT(accept())); |
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196 } |
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197 |
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198 |
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199 /*! |
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200 Destroys the tab dialog. |
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201 */ |
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202 |
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203 Q3TabDialog::~Q3TabDialog() |
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204 { |
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205 delete d; |
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206 } |
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207 |
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208 |
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209 /*! |
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210 Sets the font for the tabs to \a font. |
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211 |
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212 If the widget is visible, the display is updated with the new font |
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213 immediately. There may be some geometry changes, depending on the |
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214 size of the old and new fonts. |
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215 */ |
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216 |
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217 void Q3TabDialog::setFont(const QFont & font) |
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218 { |
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219 QDialog::setFont(font); |
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220 setSizes(); |
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221 } |
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222 |
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223 |
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224 /*! |
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225 \fn void Q3TabDialog::applyButtonPressed(); |
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226 |
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227 This signal is emitted when either the Apply or OK button is clicked. |
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228 |
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229 It should be connected to a slot (or several slots) that change the |
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230 application's state according to the state of the dialog. |
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231 |
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232 \sa cancelButtonPressed() defaultButtonPressed() setApplyButton() |
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233 */ |
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234 |
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235 |
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236 /*! |
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237 Returns true if the tab dialog has a Defaults button; otherwise |
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238 returns false. |
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239 |
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240 \sa setDefaultButton() defaultButtonPressed() hasApplyButton() |
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241 hasCancelButton() |
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242 */ |
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243 |
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244 bool Q3TabDialog::hasDefaultButton() const |
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245 { |
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246 return d->db != 0; |
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247 } |
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248 |
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249 |
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250 /*! |
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251 Returns true if the tab dialog has a Help button; otherwise returns |
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252 false. |
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253 |
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254 \sa setHelpButton() helpButtonPressed() hasApplyButton() |
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255 hasCancelButton() |
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256 */ |
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257 |
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258 bool Q3TabDialog::hasHelpButton() const |
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259 { |
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260 return d->hb != 0; |
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261 } |
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262 |
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263 |
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264 /*! |
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265 \fn void Q3TabDialog::cancelButtonPressed(); |
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266 |
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267 This signal is emitted when the Cancel button is clicked. It is |
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268 automatically connected to QDialog::reject(), which will hide the |
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269 dialog. |
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270 |
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271 The Cancel button should not change the application's state at all, |
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272 so you should generally not need to connect it to any slot. |
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273 |
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274 \sa applyButtonPressed() defaultButtonPressed() setCancelButton() |
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275 */ |
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276 |
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277 |
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278 /*! |
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279 Returns true if the tab dialog has a Cancel button; otherwise |
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280 returns false. |
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281 |
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282 \sa setCancelButton() cancelButtonPressed() hasApplyButton() |
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283 hasDefaultButton() |
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284 */ |
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285 |
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286 bool Q3TabDialog::hasCancelButton() const |
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287 { |
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288 return d->cb != 0; |
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289 } |
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290 |
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291 |
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292 /*! |
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293 \fn void Q3TabDialog::defaultButtonPressed(); |
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294 |
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295 This signal is emitted when the Defaults button is pressed. It |
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296 should reset the dialog (but not the application) to the "factory |
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297 defaults". |
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298 |
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299 The application's state should not be changed until the user clicks |
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300 Apply or OK. |
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301 |
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302 \sa applyButtonPressed() cancelButtonPressed() setDefaultButton() |
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303 */ |
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304 |
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305 |
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306 /*! |
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307 \fn void Q3TabDialog::helpButtonPressed(); |
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308 |
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309 This signal is emitted when the Help button is pressed. It |
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310 could be used to present information about how to use the dialog. |
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311 |
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312 \sa applyButtonPressed() cancelButtonPressed() setHelpButton() |
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313 */ |
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314 |
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315 |
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316 /*! |
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317 Returns true if the tab dialog has an Apply button; otherwise |
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318 returns false. |
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319 |
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320 \sa setApplyButton() applyButtonPressed() hasCancelButton() |
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321 hasDefaultButton() |
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322 */ |
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323 |
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324 bool Q3TabDialog::hasApplyButton() const |
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325 { |
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326 return d->ab != 0; |
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327 } |
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328 |
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329 |
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330 /*! |
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331 Returns true if the tab dialog has an OK button; otherwise returns |
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332 false. |
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333 |
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334 \sa setOkButton() hasApplyButton() hasCancelButton() |
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335 hasDefaultButton() |
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336 */ |
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337 |
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338 bool Q3TabDialog::hasOkButton() const |
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339 { |
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340 return d->ok != 0; |
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341 } |
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342 |
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343 |
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344 /*! |
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345 \fn void Q3TabDialog::aboutToShow() |
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346 |
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347 This signal is emitted by show() when it is time to set the state of |
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348 the dialog's contents. The dialog should reflect the current state |
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349 of the application when it appears; if there is any possibility that |
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350 the state of the application may change between the time you call |
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351 Q3TabDialog() and show(), you should set the |
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352 dialog's state in a slot and connect this signal to it. |
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353 |
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354 This applies mainly to Q3TabDialog objects that are kept around |
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355 hidden, rather than being created, shown, and deleted afterwards. |
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356 |
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357 \sa applyButtonPressed(), QWidget::show(), cancelButtonPressed() |
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358 */ |
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359 |
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360 |
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361 /*! |
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362 \internal |
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363 |
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364 Implemented to delay show()'ing of every page. |
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365 */ |
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366 void Q3TabDialog::show() |
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367 { |
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368 // Reimplemented in order to delay show()'ing of every page |
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369 // except the initially visible one, and in order to emit the |
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370 // aboutToShow() signal. |
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371 if (window() == this) |
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372 d->tw->setFocus(); |
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373 emit aboutToShow(); |
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374 setSizes(); |
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375 setUpLayout(); |
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376 QDialog::show(); |
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377 } |
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378 |
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379 |
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380 |
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381 /*! |
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382 Adds another tab and page to the tab view. |
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383 |
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384 The new page is \a child; the tab's label is \a label. |
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385 Note the difference between the widget name (which you supply to |
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386 widget constructors and to setTabEnabled(), for example) and the tab |
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387 label. The name is internal to the program and invariant, whereas |
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388 the label is shown on-screen and may vary according to language and |
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389 other factors. |
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390 |
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391 If the tab's \a label contains an ampersand, the letter following |
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392 the ampersand is used as an accelerator for the tab, e.g. if the |
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393 label is "Bro&wse" then Alt+W becomes an accelerator which will |
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394 move the focus to this tab. |
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395 |
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396 If you call addTab() after show() the screen will flicker and the |
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397 user may be confused. |
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398 |
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399 \sa insertTab() |
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400 */ |
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401 |
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402 void Q3TabDialog::addTab(QWidget * child, const QString &label) |
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403 { |
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404 d->tw->addTab(child, label); |
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405 } |
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406 |
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407 |
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408 |
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409 /*! \overload |
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410 |
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411 This version of the function shows the \a iconset as well as the \a |
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412 label on the tab of \a child. |
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413 */ |
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414 void Q3TabDialog::addTab(QWidget *child, const QIcon& iconset, const QString &label) |
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415 { |
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416 d->tw->addTab(child, iconset, label); |
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417 } |
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418 |
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419 |
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420 /*! |
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421 Inserts another tab and page to the tab view. |
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422 |
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423 The new page is \a child; the tab's label is \a label. |
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424 Note the difference between the widget name (which you supply to |
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425 widget constructors and to setTabEnabled(), for example) and the tab |
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426 label. The name is internal to the program and invariant, whereas |
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427 the label is shown on-screen and may vary according to language and |
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428 other factors. |
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429 |
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430 If the tab's \a label contains an ampersand, the letter following |
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431 the ampersand is used as an accelerator for the tab, e.g. if the |
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432 label is "Bro&wse" then Alt+W becomes an accelerator which will |
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433 move the focus to this tab. |
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434 |
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435 If \a index is not specified, the tab is simply added. Otherwise |
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436 it is inserted at the specified position. |
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437 |
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438 If you call insertTab() after show(), the screen will flicker and the |
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439 user may be confused. |
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440 |
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441 \sa addTab() |
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442 */ |
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443 |
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444 void Q3TabDialog::insertTab(QWidget * child, const QString &label, int index) |
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445 { |
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446 d->tw->insertTab(child, label, index); |
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447 } |
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448 |
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449 |
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450 /*! \overload |
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451 |
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452 This version of the function shows the \a iconset as well as the \a |
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453 label on the tab of \a child. |
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454 */ |
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455 void Q3TabDialog::insertTab(QWidget *child, const QIcon& iconset, const QString &label, int index) |
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456 { |
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457 d->tw->insertTab(child, iconset, label, index); |
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458 } |
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459 |
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460 /*! |
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461 Replaces the QTabBar heading the dialog by the given tab bar, \a tb. |
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462 Note that this must be called \e before any tabs have been added, |
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463 or the behavior is undefined. |
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464 \sa tabBar() |
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465 */ |
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466 void Q3TabDialog::setTabBar(QTabBar* tb) |
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467 { |
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468 if (tb == 0){ |
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469 qWarning("Q3TabDialog::setTabBar() called with null QTabBar pointer"); |
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470 return; |
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471 } |
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472 |
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473 d->tw->setTabBar(tb); |
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474 setUpLayout(); |
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475 } |
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476 |
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477 /*! |
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478 Returns the currently set QTabBar. |
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479 \sa setTabBar() |
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480 */ |
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481 QTabBar* Q3TabDialog::tabBar() const |
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482 { |
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483 return d->tw->tabBar(); |
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484 } |
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485 |
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486 /*! Ensures that widget \a w is shown. This is mainly useful for accelerators. |
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487 |
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488 \warning If used carelessly, this function can easily surprise or |
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489 confuse the user. |
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490 |
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491 \sa QTabBar::setCurrentTab() |
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492 */ |
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493 |
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494 void Q3TabDialog::showPage(QWidget * w) |
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495 { |
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496 d->tw->showPage(w); |
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497 } |
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498 |
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499 |
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500 /*! \obsolete |
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501 Returns true if the page with object name \a name is enabled and |
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502 false if it is disabled. |
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503 |
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504 If \a name is 0 or not the name of any of the pages, isTabEnabled() |
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505 returns false. |
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506 |
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507 \sa setTabEnabled(), QWidget::isEnabled() |
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508 */ |
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509 |
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510 bool Q3TabDialog::isTabEnabled(const char* name) const |
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511 { |
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512 if (!name) |
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513 return false; |
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514 QObjectList l = this->queryList("QWidget", name, false, true); |
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515 if (!l.isEmpty()) { |
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516 for (int i = 0; i < l.size(); ++i) { |
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517 QObject *o = l.at(i); |
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518 if (!o->isWidgetType()) |
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519 continue; |
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520 QWidget *w = static_cast<QWidget *>(o); |
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521 return d->tw->isTabEnabled(w); |
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522 } |
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523 } |
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524 return false; |
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525 } |
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526 |
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527 |
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528 /*!\obsolete |
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529 |
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530 Finds the page with object name \a name, enables/disables it |
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531 according to the value of \a enable and redraws the page's tab |
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532 appropriately. |
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533 |
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534 Q3TabDialog uses QWidget::setEnabled() internally, rather than keeping a |
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535 separate flag. |
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536 |
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537 Note that even a disabled tab/page may be visible. If the page is |
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538 already visible Q3TabDialog will not hide it; if all the pages |
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539 are disabled Q3TabDialog will show one of them. |
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540 |
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541 The object name is used (rather than the tab label) because the tab |
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542 text may not be invariant in multi-language applications. |
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543 |
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544 \sa isTabEnabled(), QWidget::setEnabled() |
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545 */ |
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546 |
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547 void Q3TabDialog::setTabEnabled(const char* name, bool enable) |
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548 { |
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549 if (!name) |
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550 return; |
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551 QObjectList l = this->queryList("QWidget", name, false, true); |
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552 if (!l.isEmpty()) { |
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553 for (int i = 0; i < l.size(); ++i) { |
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554 QObject *o = l.at(i); |
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555 if(o->isWidgetType()) |
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556 d->tw->setTabEnabled(static_cast<QWidget*>(o), enable); |
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557 } |
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558 } |
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559 } |
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560 |
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561 |
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562 /* ### SHOULD THIS BE HERE? |
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563 Adds an Apply button to the dialog. The button's text is set to \e |
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564 text (and defaults to "Apply"). |
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565 |
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566 The Apply button should apply the current settings in the dialog box |
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567 to the application, while keeping the dialog visible. |
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568 |
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569 When Apply is clicked, the applyButtonPressed() signal is emitted. |
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570 |
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571 If \a text is an empty string, no button is shown. |
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572 |
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573 \sa setCancelButton() setDefaultButton() applyButtonPressed() |
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574 */ |
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575 |
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576 |
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577 /*! |
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578 Returns true if the page \a w is enabled; otherwise returns false. |
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579 |
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580 \sa setTabEnabled(), QWidget::isEnabled() |
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581 */ |
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582 |
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583 bool Q3TabDialog::isTabEnabled(QWidget* w) const |
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584 { |
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585 return d->tw->isTabEnabled(w); |
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586 } |
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587 |
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588 /*! |
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589 If \a enable is true the page \a w is enabled; otherwise \a w is |
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590 disabled. The page's tab is redrawn appropriately. |
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591 |
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592 QTabWidget uses QWidget::setEnabled() internally, rather than keeping a |
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593 separate flag. |
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594 |
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595 Note that even a disabled tab and tab page may be visible. If the |
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596 page is already visible QTabWidget will not hide it; if all the |
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597 pages are disabled QTabWidget will show one of them. |
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598 |
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599 \sa isTabEnabled(), QWidget::setEnabled() |
|
600 */ |
|
601 |
|
602 void Q3TabDialog::setTabEnabled(QWidget* w, bool enable) |
|
603 { |
|
604 d->tw->setTabEnabled(w, enable); |
|
605 } |
|
606 |
|
607 |
|
608 /*! |
|
609 Adds an Apply button to the dialog. The button's text is set to \a |
|
610 text. |
|
611 |
|
612 The Apply button should apply the current settings in the dialog box |
|
613 to the application while keeping the dialog visible. |
|
614 |
|
615 When Apply is clicked, the applyButtonPressed() signal is emitted. |
|
616 |
|
617 If \a text is an empty string, no button is shown. |
|
618 |
|
619 \sa setCancelButton() setDefaultButton() applyButtonPressed() |
|
620 */ |
|
621 void Q3TabDialog::setApplyButton(const QString &text) |
|
622 { |
|
623 if (text.isEmpty() && d->ab) { |
|
624 delete d->ab; |
|
625 d->ab = 0; |
|
626 setSizes(); |
|
627 } else { |
|
628 if (!d->ab) { |
|
629 d->ab = new QPushButton(this, "apply settings"); |
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630 connect(d->ab, SIGNAL(clicked()), |
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631 this, SIGNAL(applyButtonPressed())); |
|
632 setUpLayout(); |
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633 } |
|
634 d->ab->setText(text); |
|
635 setSizes(); |
|
636 //d->ab->show(); |
|
637 } |
|
638 } |
|
639 |
|
640 /*! |
|
641 \overload |
|
642 |
|
643 Adds an Apply button to the dialog. The button's text is set to |
|
644 a localizable "Apply". |
|
645 */ |
|
646 void Q3TabDialog::setApplyButton() |
|
647 { |
|
648 setApplyButton(tr("Apply")); |
|
649 } |
|
650 |
|
651 |
|
652 /*! |
|
653 Adds a Help button to the dialog. The button's text is set to \a |
|
654 text. |
|
655 |
|
656 When Help is clicked, the helpButtonPressed() signal is emitted. |
|
657 |
|
658 If \a text is an empty string, no button is shown. |
|
659 |
|
660 \sa setApplyButton() setCancelButton() helpButtonPressed() |
|
661 */ |
|
662 |
|
663 void Q3TabDialog::setHelpButton(const QString &text) |
|
664 { |
|
665 if (text.isEmpty()) { |
|
666 delete d->hb; |
|
667 d->hb = 0; |
|
668 setSizes(); |
|
669 } else { |
|
670 if (!d->hb) { |
|
671 d->hb = new QPushButton(this, "give help"); |
|
672 connect(d->hb, SIGNAL(clicked()), |
|
673 this, SIGNAL(helpButtonPressed())); |
|
674 setUpLayout(); |
|
675 } |
|
676 d->hb->setText(text); |
|
677 setSizes(); |
|
678 //d->hb->show(); |
|
679 } |
|
680 } |
|
681 |
|
682 |
|
683 /*! |
|
684 \overload |
|
685 |
|
686 Adds a Help button to the dialog. The button's text is set to |
|
687 a localizable "Help". |
|
688 */ |
|
689 void Q3TabDialog::setHelpButton() |
|
690 { |
|
691 setHelpButton(tr("Help")); |
|
692 } |
|
693 |
|
694 /*! |
|
695 Adds a Defaults button to the dialog. The button's text is set to \a |
|
696 text. |
|
697 |
|
698 The Defaults button should set the dialog (but not the application) |
|
699 back to the application defaults. |
|
700 |
|
701 When Defaults is clicked, the defaultButtonPressed() signal is emitted. |
|
702 |
|
703 If \a text is an empty string, no button is shown. |
|
704 |
|
705 \sa setApplyButton() setCancelButton() defaultButtonPressed() |
|
706 */ |
|
707 |
|
708 void Q3TabDialog::setDefaultButton(const QString &text) |
|
709 { |
|
710 if (text.isEmpty()) { |
|
711 delete d->db; |
|
712 d->db = 0; |
|
713 setSizes(); |
|
714 } else { |
|
715 if (!d->db) { |
|
716 d->db = new QPushButton(this, "back to default"); |
|
717 connect(d->db, SIGNAL(clicked()), |
|
718 this, SIGNAL(defaultButtonPressed())); |
|
719 setUpLayout(); |
|
720 } |
|
721 d->db->setText(text); |
|
722 setSizes(); |
|
723 //d->db->show(); |
|
724 } |
|
725 } |
|
726 |
|
727 |
|
728 /*! |
|
729 \overload |
|
730 |
|
731 Adds a Defaults button to the dialog. The button's text is set to |
|
732 a localizable "Defaults". |
|
733 */ |
|
734 void Q3TabDialog::setDefaultButton() |
|
735 { |
|
736 setDefaultButton(tr("Defaults")); |
|
737 } |
|
738 |
|
739 /*! |
|
740 Adds a Cancel button to the dialog. The button's text is set to \a |
|
741 text. |
|
742 |
|
743 The cancel button should always return the application to the state |
|
744 it was in before the tab view popped up, or if the user has clicked |
|
745 Apply, back to the state immediately after the last Apply. |
|
746 |
|
747 When Cancel is clicked, the cancelButtonPressed() signal is emitted. |
|
748 The dialog is closed at the same time. |
|
749 |
|
750 If \a text is an empty string, no button is shown. |
|
751 |
|
752 \sa setApplyButton() setDefaultButton() cancelButtonPressed() |
|
753 */ |
|
754 |
|
755 void Q3TabDialog::setCancelButton(const QString &text) |
|
756 { |
|
757 if (text.isEmpty()) { |
|
758 delete d->cb; |
|
759 d->cb = 0; |
|
760 setSizes(); |
|
761 } else { |
|
762 if (!d->cb) { |
|
763 d->cb = new QPushButton(this, "cancel dialog"); |
|
764 connect(d->cb, SIGNAL(clicked()), |
|
765 this, SIGNAL(cancelButtonPressed())); |
|
766 connect(d->cb, SIGNAL(clicked()), |
|
767 this, SLOT(reject())); |
|
768 setUpLayout(); |
|
769 } |
|
770 d->cb->setText(text); |
|
771 setSizes(); |
|
772 //d->cb->show(); |
|
773 } |
|
774 } |
|
775 |
|
776 |
|
777 /*! |
|
778 \overload |
|
779 |
|
780 Adds a Cancel button to the dialog. The button's text is set to |
|
781 a localizable "Cancel". |
|
782 */ |
|
783 |
|
784 void Q3TabDialog::setCancelButton() |
|
785 { |
|
786 setCancelButton(tr("Cancel")); |
|
787 } |
|
788 |
|
789 /*! Sets up the layout manager for the tab dialog. |
|
790 |
|
791 \sa setSizes() setApplyButton() setCancelButton() setDefaultButton() |
|
792 */ |
|
793 |
|
794 void Q3TabDialog::setUpLayout() |
|
795 { |
|
796 // the next four are probably the same, really? |
|
797 const int topMargin = 6; |
|
798 const int leftMargin = 6; |
|
799 const int rightMargin = 6; |
|
800 const int bottomMargin = 6; |
|
801 const int betweenButtonsMargin = 7; |
|
802 const int aboveButtonsMargin = 8; |
|
803 |
|
804 delete d->tll; |
|
805 d->tll = new QBoxLayout(this, QBoxLayout::Down); |
|
806 |
|
807 // top margin |
|
808 d->tll->addSpacing(topMargin); |
|
809 |
|
810 QBoxLayout * tmp = new QHBoxLayout(); |
|
811 d->tll->addLayout(tmp, 1); |
|
812 tmp->addSpacing(leftMargin); |
|
813 tmp->addWidget(d->tw, 1); |
|
814 tmp->addSpacing(rightMargin + 2); |
|
815 |
|
816 d->tll->addSpacing(aboveButtonsMargin + 2); |
|
817 QBoxLayout * buttonRow = new QBoxLayout(QBoxLayout::RightToLeft); |
|
818 d->tll->addLayout(buttonRow, 0); |
|
819 d->tll->addSpacing(bottomMargin); |
|
820 |
|
821 buttonRow->addSpacing(rightMargin); |
|
822 if (d->cb) { |
|
823 buttonRow->addWidget(d->cb, 0); |
|
824 buttonRow->addSpacing(betweenButtonsMargin); |
|
825 d->cb->raise(); |
|
826 } |
|
827 |
|
828 if (d->ab) { |
|
829 buttonRow->addWidget(d->ab, 0); |
|
830 buttonRow->addSpacing(betweenButtonsMargin); |
|
831 d->ab->raise(); |
|
832 } |
|
833 |
|
834 if (d->db) { |
|
835 buttonRow->addWidget(d->db, 0); |
|
836 buttonRow->addSpacing(betweenButtonsMargin); |
|
837 d->db->raise(); |
|
838 } |
|
839 |
|
840 if (d->hb) { |
|
841 buttonRow->addWidget(d->hb, 0); |
|
842 buttonRow->addSpacing(betweenButtonsMargin); |
|
843 d->hb->raise(); |
|
844 } |
|
845 |
|
846 if (d->ok) { |
|
847 buttonRow->addWidget(d->ok, 0); |
|
848 buttonRow->addSpacing(betweenButtonsMargin); |
|
849 d->ok->raise(); |
|
850 } |
|
851 |
|
852 // add one custom widget here |
|
853 buttonRow->addStretch(1); |
|
854 // add another custom widget here |
|
855 |
|
856 d->tll->activate(); |
|
857 } |
|
858 |
|
859 |
|
860 /*! Sets up the minimum and maximum sizes for each child widget. |
|
861 |
|
862 \sa setUpLayout() setFont() |
|
863 */ |
|
864 |
|
865 void Q3TabDialog::setSizes() |
|
866 { |
|
867 // compute largest button size |
|
868 QSize s(0, 0); |
|
869 int bw = s.width(); |
|
870 int bh = s.height(); |
|
871 |
|
872 if (d->ok) { |
|
873 s = d->ok->sizeHint(); |
|
874 if (s.width() > bw) |
|
875 bw = s.width(); |
|
876 if (s.height() > bh) |
|
877 bh = s.height(); |
|
878 } |
|
879 |
|
880 if (d->ab) { |
|
881 s = d->ab->sizeHint(); |
|
882 if (s.width() > bw) |
|
883 bw = s.width(); |
|
884 if (s.height() > bh) |
|
885 bh = s.height(); |
|
886 } |
|
887 |
|
888 if (d->db) { |
|
889 s = d->db->sizeHint(); |
|
890 if (s.width() > bw) |
|
891 bw = s.width(); |
|
892 if (s.height() > bh) |
|
893 bh = s.height(); |
|
894 } |
|
895 |
|
896 if (d->hb) { |
|
897 s = d->hb->sizeHint(); |
|
898 if (s.width() > bw) |
|
899 bw = s.width(); |
|
900 if (s.height() > bh) |
|
901 bh = s.height(); |
|
902 } |
|
903 |
|
904 if (d->cb) { |
|
905 s = d->cb->sizeHint(); |
|
906 if (s.width() > bw) |
|
907 bw = s.width(); |
|
908 if (s.height() > bh) |
|
909 bh = s.height(); |
|
910 } |
|
911 |
|
912 // and set all the buttons to that size |
|
913 if (d->ok) |
|
914 d->ok->setFixedSize(bw, bh); |
|
915 if (d->ab) |
|
916 d->ab->setFixedSize(bw, bh); |
|
917 if (d->db) |
|
918 d->db->setFixedSize(bw, bh); |
|
919 if (d->hb) |
|
920 d->hb->setFixedSize(bw, bh); |
|
921 if (d->cb) |
|
922 d->cb->setFixedSize(bw, bh); |
|
923 |
|
924 // fiddle the tab chain so the buttons are in their natural order |
|
925 QWidget * w = d->ok; |
|
926 |
|
927 if (d->hb) { |
|
928 if (w) |
|
929 setTabOrder(w, d->hb); |
|
930 w = d->hb; |
|
931 } |
|
932 if (d->db) { |
|
933 if (w) |
|
934 setTabOrder(w, d->db); |
|
935 w = d->db; |
|
936 } |
|
937 if (d->ab) { |
|
938 if (w) |
|
939 setTabOrder(w, d->ab); |
|
940 w = d->ab; |
|
941 } |
|
942 if (d->cb) { |
|
943 if (w) |
|
944 setTabOrder(w, d->cb); |
|
945 w = d->cb; |
|
946 } |
|
947 setTabOrder(w, d->tw); |
|
948 } |
|
949 |
|
950 /*!\reimp |
|
951 */ |
|
952 void Q3TabDialog::resizeEvent(QResizeEvent * e) |
|
953 { |
|
954 QDialog::resizeEvent(e); |
|
955 } |
|
956 |
|
957 |
|
958 /*!\reimp |
|
959 */ |
|
960 void Q3TabDialog::paintEvent(QPaintEvent *) |
|
961 { |
|
962 } |
|
963 |
|
964 |
|
965 /*!\reimp |
|
966 */ |
|
967 void Q3TabDialog::showEvent(QShowEvent *e) |
|
968 { |
|
969 if (!e->spontaneous()) |
|
970 show(); |
|
971 QDialog::showEvent(e); |
|
972 } |
|
973 |
|
974 |
|
975 /*! |
|
976 Adds an OK button to the dialog and sets the button's text to \a text. |
|
977 |
|
978 When the OK button is clicked, the applyButtonPressed() signal is emitted, |
|
979 and the current settings in the dialog box should be applied to |
|
980 the application. The dialog then closes. |
|
981 |
|
982 If \a text is an empty string, no button is shown. |
|
983 |
|
984 \sa setCancelButton() setDefaultButton() applyButtonPressed() |
|
985 */ |
|
986 |
|
987 void Q3TabDialog::setOkButton(const QString &text) |
|
988 { |
|
989 if (text.isEmpty()) { |
|
990 delete d->ok; |
|
991 d->ok = 0; |
|
992 setSizes(); |
|
993 } else { |
|
994 if (!d->ok) { |
|
995 d->ok = new QPushButton(this, "ok"); |
|
996 connect(d->ok, SIGNAL(clicked()), |
|
997 this, SIGNAL(applyButtonPressed())); |
|
998 setUpLayout(); |
|
999 } |
|
1000 d->ok->setText(text); |
|
1001 setSizes(); |
|
1002 //d->ok->show(); |
|
1003 } |
|
1004 } |
|
1005 /*! |
|
1006 \overload |
|
1007 |
|
1008 Adds an OK button to the dialog. The button's text is set to |
|
1009 a localizable "OK". |
|
1010 */ |
|
1011 |
|
1012 void Q3TabDialog::setOkButton() |
|
1013 { |
|
1014 setOkButton(tr("OK")); |
|
1015 } |
|
1016 |
|
1017 |
|
1018 /* |
|
1019 \overload |
|
1020 Old version of setOkButton(), provided for backward compatibility. |
|
1021 */ |
|
1022 void Q3TabDialog::setOKButton(const QString &text) |
|
1023 { |
|
1024 // Ugly workaround for original "OK" default argument |
|
1025 QString newText(text); |
|
1026 if (text.isNull()) |
|
1027 newText = QString::fromLatin1("OK"); |
|
1028 setOkButton(newText); |
|
1029 } |
|
1030 |
|
1031 |
|
1032 /*! Returns the text in the tab for page \a w. |
|
1033 */ |
|
1034 |
|
1035 QString Q3TabDialog::tabLabel(QWidget * w) |
|
1036 { |
|
1037 return d->tw->tabLabel(w); |
|
1038 } |
|
1039 |
|
1040 |
|
1041 /*! \internal |
|
1042 */ |
|
1043 void Q3TabDialog::styleChange(QStyle& s) |
|
1044 { |
|
1045 QDialog::styleChange(s); |
|
1046 setSizes(); |
|
1047 } |
|
1048 |
|
1049 |
|
1050 /*! Returns a pointer to the page currently being displayed by the |
|
1051 tab dialog. The tab dialog does its best to make sure that this value |
|
1052 is never 0 (but if you try hard enough, it can be). |
|
1053 */ |
|
1054 |
|
1055 QWidget * Q3TabDialog::currentPage() const |
|
1056 { |
|
1057 return d->tw->currentPage(); |
|
1058 } |
|
1059 |
|
1060 /*! |
|
1061 \overload |
|
1062 Defines a new \a label for the tab of page \a w |
|
1063 */ |
|
1064 void Q3TabDialog::changeTab(QWidget *w, const QString &label) |
|
1065 { |
|
1066 d->tw->changeTab(w, label); |
|
1067 } |
|
1068 |
|
1069 /*! |
|
1070 Changes tab page \a w's iconset to \a iconset and label to \a label. |
|
1071 |
|
1072 */ |
|
1073 void Q3TabDialog::changeTab(QWidget *w, const QIcon& iconset, const QString &label) |
|
1074 { |
|
1075 d->tw->changeTab(w, iconset, label); |
|
1076 } |
|
1077 |
|
1078 /*! Removes page \a w from this stack of widgets. Does not |
|
1079 delete \a w. |
|
1080 \sa showPage(), QTabWidget::removePage() |
|
1081 */ |
|
1082 void Q3TabDialog::removePage(QWidget * w) |
|
1083 { |
|
1084 d->tw->removePage(w); |
|
1085 } |
|
1086 |
|
1087 QT_END_NAMESPACE |