qradiobutton.cpp

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32****************************************************************************/-
33-
34#include "qradiobutton.h"-
35#include "qapplication.h"-
36#include "qbitmap.h"-
37#include "qbuttongroup.h"-
38#include "qstylepainter.h"-
39#include "qstyle.h"-
40#include "qstyleoption.h"-
41#include "qevent.h"-
42-
43#include "private/qabstractbutton_p.h"-
44-
45QT_BEGIN_NAMESPACE-
46-
47class QRadioButtonPrivate : public QAbstractButtonPrivate-
48{-
49 Q_DECLARE_PUBLIC(QRadioButton)-
50-
51public:-
52 QRadioButtonPrivate() : QAbstractButtonPrivate(QSizePolicy::RadioButton), hovering(true) {}
never executed: end of block
0
53 void init();-
54 uint hovering : 1;-
55};-
56-
57/*-
58 Initializes the radio button.-
59*/-
60void QRadioButtonPrivate::init()-
61{-
62 Q_Q(QRadioButton);-
63 q->setCheckable(true);-
64 q->setAutoExclusive(true);-
65 q->setMouseTracking(true);-
66 q->setForegroundRole(QPalette::WindowText);-
67 setLayoutItemMargins(QStyle::SE_RadioButtonLayoutItem);-
68}
never executed: end of block
0
69-
70/*!-
71 \class QRadioButton-
72 \brief The QRadioButton widget provides a radio button with a text label.-
73-
74 \ingroup basicwidgets-
75 \inmodule QtWidgets-
76-
77 A QRadioButton is an option button that can be switched on (checked) or-
78 off (unchecked). Radio buttons typically present the user with a "one-
79 of many" choice. In a group of radio buttons, only one radio button at-
80 a time can be checked; if the user selects another button, the-
81 previously selected button is switched off.-
82-
83 Radio buttons are autoExclusive by default. If auto-exclusive is-
84 enabled, radio buttons that belong to the same parent widget-
85 behave as if they were part of the same exclusive button group. If-
86 you need multiple exclusive button groups for radio buttons that-
87 belong to the same parent widget, put them into a QButtonGroup.-
88-
89 Whenever a button is switched on or off, it emits the toggled() signal.-
90 Connect to this signal if you want to trigger an action each time the-
91 button changes state. Use isChecked() to see if a particular button is-
92 selected.-
93-
94 Just like QPushButton, a radio button displays text, and-
95 optionally a small icon. The icon is set with setIcon(). The text-
96 can be set in the constructor or with setText(). A shortcut key-
97 can be specified by preceding the preferred character with an-
98 ampersand in the text. For example:-
99-
100 \snippet code/src_gui_widgets_qradiobutton.cpp 0-
101-
102 In this example the shortcut is \e{Alt+c}. See the \l-
103 {QShortcut#mnemonic}{QShortcut} documentation for details. To-
104 display an actual ampersand, use '&&'.-
105-
106 Important inherited members: text(), setText(), text(),-
107 setDown(), isDown(), autoRepeat(), group(), setAutoRepeat(),-
108 toggle(), pressed(), released(), clicked(), and toggled().-
109-
110 \table 100%-
111 \row \li \inlineimage fusion-radiobutton.png Screenshot of a Fusion radio button-
112 \li A radio button shown in the \l{Fusion Style Widget Gallery}{Fusion widget style}.-
113 \row \li \inlineimage windowsvista-radiobutton.png Screenshot of a Windows Vista radio button-
114 \li A radio button shown in the \l{Windows Vista Style Widget Gallery}{Windows Vista widget style}.-
115 \row \li \inlineimage macintosh-radiobutton.png Screenshot of a Macintosh radio button-
116 \li A radio button shown in the \l{Macintosh Style Widget Gallery}{Macintosh widget style}.-
117 \endtable-
118-
119 \sa QPushButton, QToolButton, QCheckBox, {fowler}{GUI Design Handbook: Radio Button},-
120 {Group Box Example}-
121*/-
122-
123-
124/*!-
125 Constructs a radio button with the given \a parent, but with no text or-
126 pixmap.-
127-
128 The \a parent argument is passed on to the QAbstractButton constructor.-
129*/-
130-
131QRadioButton::QRadioButton(QWidget *parent)-
132 : QAbstractButton(*new QRadioButtonPrivate, parent)-
133{-
134 Q_D(QRadioButton);-
135 d->init();-
136}
never executed: end of block
0
137-
138/*!-
139 Destructor.-
140*/-
141QRadioButton::~QRadioButton()-
142{-
143}-
144-
145/*!-
146 Constructs a radio button with the given \a parent and \a text string.-
147-
148 The \a parent argument is passed on to the QAbstractButton constructor.-
149*/-
150-
151QRadioButton::QRadioButton(const QString &text, QWidget *parent)-
152 : QAbstractButton(*new QRadioButtonPrivate, parent)-
153{-
154 Q_D(QRadioButton);-
155 d->init();-
156 setText(text);-
157}
never executed: end of block
0
158-
159/*!-
160 Initialize \a option with the values from this QRadioButton. This method is useful-
161 for subclasses when they need a QStyleOptionButton, but don't want to fill-
162 in all the information themselves.-
163-
164 \sa QStyleOption::initFrom()-
165*/-
166void QRadioButton::initStyleOption(QStyleOptionButton *option) const-
167{-
168 if (!option)
!optionDescription
TRUEnever evaluated
FALSEnever evaluated
0
169 return;
never executed: return;
0
170 Q_D(const QRadioButton);-
171 option->initFrom(this);-
172 option->text = d->text;-
173 option->icon = d->icon;-
174 option->iconSize = iconSize();-
175 if (d->down)
d->downDescription
TRUEnever evaluated
FALSEnever evaluated
0
176 option->state |= QStyle::State_Sunken;
never executed: option->state |= QStyle::State_Sunken;
0
177 option->state |= (d->checked) ? QStyle::State_On : QStyle::State_Off;
(d->checked)Description
TRUEnever evaluated
FALSEnever evaluated
0
178 if (testAttribute(Qt::WA_Hover) && underMouse()) {
testAttribute(Qt::WA_Hover)Description
TRUEnever evaluated
FALSEnever evaluated
underMouse()Description
TRUEnever evaluated
FALSEnever evaluated
0
179 if (d->hovering)
d->hoveringDescription
TRUEnever evaluated
FALSEnever evaluated
0
180 option->state |= QStyle::State_MouseOver;
never executed: option->state |= QStyle::State_MouseOver;
0
181 else-
182 option->state &= ~QStyle::State_MouseOver;
never executed: option->state &= ~QStyle::State_MouseOver;
0
183 }-
184}
never executed: end of block
0
185-
186/*!-
187 \reimp-
188*/-
189QSize QRadioButton::sizeHint() const-
190{-
191 Q_D(const QRadioButton);-
192 if (d->sizeHint.isValid())
d->sizeHint.isValid()Description
TRUEnever evaluated
FALSEnever evaluated
0
193 return d->sizeHint;
never executed: return d->sizeHint;
0
194 ensurePolished();-
195 QStyleOptionButton opt;-
196 initStyleOption(&opt);-
197 QSize sz = style()->itemTextRect(fontMetrics(), QRect(), Qt::TextShowMnemonic,-
198 false, text()).size();-
199 if (!opt.icon.isNull())
!opt.icon.isNull()Description
TRUEnever evaluated
FALSEnever evaluated
0
200 sz = QSize(sz.width() + opt.iconSize.width() + 4, qMax(sz.height(), opt.iconSize.height()));
never executed: sz = QSize(sz.width() + opt.iconSize.width() + 4, qMax(sz.height(), opt.iconSize.height()));
0
201 d->sizeHint = (style()->sizeFromContents(QStyle::CT_RadioButton, &opt, sz, this).-
202 expandedTo(QApplication::globalStrut()));-
203 return d->sizeHint;
never executed: return d->sizeHint;
0
204}-
205-
206/*!-
207 \reimp-
208*/-
209QSize QRadioButton::minimumSizeHint() const-
210{-
211 return sizeHint();
never executed: return sizeHint();
0
212}-
213-
214/*!-
215 \reimp-
216*/-
217bool QRadioButton::hitButton(const QPoint &pos) const-
218{-
219 QStyleOptionButton opt;-
220 initStyleOption(&opt);-
221 return style()->subElementRect(QStyle::SE_RadioButtonClickRect, &opt, this).contains(pos);
never executed: return style()->subElementRect(QStyle::SE_RadioButtonClickRect, &opt, this).contains(pos);
0
222}-
223-
224/*!-
225 \reimp-
226*/-
227void QRadioButton::mouseMoveEvent(QMouseEvent *e)-
228{-
229 Q_D(QRadioButton);-
230 if (testAttribute(Qt::WA_Hover)) {
testAttribute(Qt::WA_Hover)Description
TRUEnever evaluated
FALSEnever evaluated
0
231 bool hit = false;-
232 if (underMouse())
underMouse()Description
TRUEnever evaluated
FALSEnever evaluated
0
233 hit = hitButton(e->pos());
never executed: hit = hitButton(e->pos());
0
234-
235 if (hit != d->hovering) {
hit != d->hoveringDescription
TRUEnever evaluated
FALSEnever evaluated
0
236 update();-
237 d->hovering = hit;-
238 }
never executed: end of block
0
239 }
never executed: end of block
0
240-
241 QAbstractButton::mouseMoveEvent(e);-
242}
never executed: end of block
0
243-
244/*!\reimp-
245 */-
246void QRadioButton::paintEvent(QPaintEvent *)-
247{-
248 QStylePainter p(this);-
249 QStyleOptionButton opt;-
250 initStyleOption(&opt);-
251 p.drawControl(QStyle::CE_RadioButton, opt);-
252}
never executed: end of block
0
253-
254/*! \reimp */-
255bool QRadioButton::event(QEvent *e)-
256{-
257 Q_D(QRadioButton);-
258 if (e->type() == QEvent::StyleChange
e->type() == Q...t::StyleChangeDescription
TRUEnever evaluated
FALSEnever evaluated
0
259#ifdef Q_OS_MAC-
260 || e->type() == QEvent::MacSizeChange-
261#endif-
262 )-
263 d->setLayoutItemMargins(QStyle::SE_RadioButtonLayoutItem);
never executed: d->setLayoutItemMargins(QStyle::SE_RadioButtonLayoutItem);
0
264 return QAbstractButton::event(e);
never executed: return QAbstractButton::event(e);
0
265}-
266-
267-
268QT_END_NAMESPACE-
269-
270#include "moc_qradiobutton.cpp"-
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