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39
40 #include "qgraphicslayoutstyleinfo_p.h"
41
42 #include "qgraphicslayout_p.h"
43 #include "qgraphicswidget.h"
44 #include <QtWidgets/qstyle.h>
45 #include <QtWidgets/qwidget.h>
46 #include <QtWidgets/qapplication.h>
47
48 QT_BEGIN_NAMESPACE
49
QGraphicsLayoutStyleInfo(const QGraphicsLayoutPrivate * layout)50 QGraphicsLayoutStyleInfo::QGraphicsLayoutStyleInfo(const QGraphicsLayoutPrivate *layout)
51 : m_layout(layout), m_style(nullptr)
52 {
53 m_widget.reset(new QWidget); // pixelMetric might need a widget ptr
54 m_styleOption.initFrom(m_widget.get());
55 m_isWindow = m_styleOption.state & QStyle::State_Window;
56 }
57
~QGraphicsLayoutStyleInfo()58 QGraphicsLayoutStyleInfo::~QGraphicsLayoutStyleInfo()
59 {
60 }
61
combinedLayoutSpacing(QLayoutPolicy::ControlTypes controls1,QLayoutPolicy::ControlTypes controls2,Qt::Orientation orientation) const62 qreal QGraphicsLayoutStyleInfo::combinedLayoutSpacing(QLayoutPolicy::ControlTypes controls1,
63 QLayoutPolicy::ControlTypes controls2,
64 Qt::Orientation orientation) const
65 {
66 Q_ASSERT(style());
67 return style()->combinedLayoutSpacing(QSizePolicy::ControlTypes(int(controls1)), QSizePolicy::ControlTypes(int(controls2)),
68 orientation, const_cast<QStyleOption*>(&m_styleOption), widget());
69 }
70
perItemSpacing(QLayoutPolicy::ControlType control1,QLayoutPolicy::ControlType control2,Qt::Orientation orientation) const71 qreal QGraphicsLayoutStyleInfo::perItemSpacing(QLayoutPolicy::ControlType control1,
72 QLayoutPolicy::ControlType control2,
73 Qt::Orientation orientation) const
74 {
75 Q_ASSERT(style());
76 return style()->layoutSpacing(QSizePolicy::ControlType(control1), QSizePolicy::ControlType(control2),
77 orientation, const_cast<QStyleOption*>(&m_styleOption), widget());
78 }
79
spacing(Qt::Orientation orientation) const80 qreal QGraphicsLayoutStyleInfo::spacing(Qt::Orientation orientation) const
81 {
82 Q_ASSERT(style());
83 return style()->pixelMetric(orientation == Qt::Horizontal
84 ? QStyle::PM_LayoutHorizontalSpacing : QStyle::PM_LayoutVerticalSpacing,
85 &m_styleOption);
86 }
87
windowMargin(Qt::Orientation orientation) const88 qreal QGraphicsLayoutStyleInfo::windowMargin(Qt::Orientation orientation) const
89 {
90 return style()->pixelMetric(orientation == Qt::Vertical
91 ? QStyle::PM_LayoutBottomMargin
92 : QStyle::PM_LayoutRightMargin,
93 const_cast<QStyleOption*>(&m_styleOption), widget());
94 }
95
widget() const96 QWidget *QGraphicsLayoutStyleInfo::widget() const { return m_widget.get(); }
97
style() const98 QStyle *QGraphicsLayoutStyleInfo::style() const
99 {
100 if (!m_style) {
101 Q_ASSERT(m_layout);
102 QGraphicsItem *item = m_layout->parentItem();
103 m_style = (item && item->isWidget()) ? static_cast<QGraphicsWidget*>(item)->style() : QApplication::style();
104 }
105 return m_style;
106 }
107
108 QT_END_NAMESPACE
109