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39
40#include "qtoolbarextension_p.h"
41#include <qevent.h>
42#include <qstyle.h>
43#include <qstylepainter.h>
44#include <qstyleoption.h>
45
46QT_BEGIN_NAMESPACE
47
48QToolBarExtension::QToolBarExtension(QWidget *parent)
49 : QToolButton(parent)
50 , m_orientation(Qt::Horizontal)
51{
52 setObjectName(QLatin1String("qt_toolbar_ext_button"));
53 setAutoRaise(true);
54 setOrientation(m_orientation);
55 setSizePolicy(hor: QSizePolicy::Minimum, ver: QSizePolicy::Minimum);
56 setCheckable(true);
57}
58
59void QToolBarExtension::setOrientation(Qt::Orientation o)
60{
61 QStyleOption opt;
62 opt.init(w: this);
63 if (o == Qt::Horizontal) {
64 setIcon(style()->standardIcon(standardIcon: QStyle::SP_ToolBarHorizontalExtensionButton, option: &opt));
65 } else {
66 setIcon(style()->standardIcon(standardIcon: QStyle::SP_ToolBarVerticalExtensionButton, option: &opt));
67 }
68 m_orientation = o;
69}
70
71void QToolBarExtension::paintEvent(QPaintEvent *)
72{
73 QStylePainter p(this);
74 QStyleOptionToolButton opt;
75 initStyleOption(option: &opt);
76 // We do not need to draw both extension arrows
77 opt.features &= ~QStyleOptionToolButton::HasMenu;
78 p.drawComplexControl(cc: QStyle::CC_ToolButton, opt);
79}
80
81
82QSize QToolBarExtension::sizeHint() const
83{
84 QStyleOption opt;
85 opt.initFrom(w: this);
86 const int ext = style()->pixelMetric(metric: QStyle::PM_ToolBarExtensionExtent, option: &opt);
87 return QSize(ext, ext);
88}
89
90bool QToolBarExtension::event(QEvent *event)
91{
92 switch (event->type()) {
93 case QEvent::LayoutDirectionChange:
94 setOrientation(m_orientation);
95 break;
96 default:
97 break;
98 }
99 return QToolButton::event(e: event);
100}
101
102QT_END_NAMESPACE
103
104#include "moc_qtoolbarextension_p.cpp"
105

source code of qtbase/src/widgets/widgets/qtoolbarextension.cpp