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39
40 #include "qgraphicsgridlayoutengine_p.h"
41
42 #include "qgraphicslayoutitem_p.h"
43 #include "qgraphicslayout_p.h"
44 #include "qgraphicswidget.h"
45 #include <private/qgraphicswidget_p.h>
46
47 QT_BEGIN_NAMESPACE
48
isHidden() const49 bool QGraphicsGridLayoutEngineItem::isHidden() const
50 {
51 if (QGraphicsItem *item = q_layoutItem->graphicsItem())
52 return QGraphicsItemPrivate::get(item)->explicitlyHidden;
53 return false;
54 }
55
56 /*!
57 \internal
58
59 If this returns true, the layout will arrange just as if the item was never added to the layout.
60 (Note that this shouldn't lead to a "double spacing" where the item was hidden)
61 ### Qt6: Move to QGraphicsLayoutItem and make virtual
62 */
isIgnored() const63 bool QGraphicsGridLayoutEngineItem::isIgnored() const
64 {
65 return isHidden() && !q_layoutItem->sizePolicy().retainSizeWhenHidden();
66 }
67
68 /*
69 returns \c true if the size policy returns \c true for either hasHeightForWidth()
70 or hasWidthForHeight()
71 */
hasDynamicConstraint() const72 bool QGraphicsGridLayoutEngineItem::hasDynamicConstraint() const
73 {
74 return QGraphicsLayoutItemPrivate::get(q_layoutItem)->hasHeightForWidth()
75 || QGraphicsLayoutItemPrivate::get(q_layoutItem)->hasWidthForHeight();
76 }
77
dynamicConstraintOrientation() const78 Qt::Orientation QGraphicsGridLayoutEngineItem::dynamicConstraintOrientation() const
79 {
80 if (QGraphicsLayoutItemPrivate::get(q_layoutItem)->hasHeightForWidth())
81 return Qt::Vertical;
82 else //if (QGraphicsLayoutItemPrivate::get(q_layoutItem)->hasWidthForHeight())
83 return Qt::Horizontal;
84 }
85
86
setAlignment(QGraphicsLayoutItem * graphicsLayoutItem,Qt::Alignment alignment)87 void QGraphicsGridLayoutEngine::setAlignment(QGraphicsLayoutItem *graphicsLayoutItem, Qt::Alignment alignment)
88 {
89 if (QGraphicsGridLayoutEngineItem *gridEngineItem = findLayoutItem(graphicsLayoutItem)) {
90 gridEngineItem->setAlignment(alignment);
91 invalidate();
92 }
93 }
94
alignment(QGraphicsLayoutItem * graphicsLayoutItem) const95 Qt::Alignment QGraphicsGridLayoutEngine::alignment(QGraphicsLayoutItem *graphicsLayoutItem) const
96 {
97 if (QGraphicsGridLayoutEngineItem *gridEngineItem = findLayoutItem(graphicsLayoutItem))
98 return gridEngineItem->alignment();
99 return { };
100 }
101
102
setStretchFactor(QGraphicsLayoutItem * layoutItem,int stretch,Qt::Orientation orientation)103 void QGraphicsGridLayoutEngine::setStretchFactor(QGraphicsLayoutItem *layoutItem, int stretch,
104 Qt::Orientation orientation)
105 {
106 Q_ASSERT(stretch >= 0);
107
108 if (QGraphicsGridLayoutEngineItem *item = findLayoutItem(layoutItem))
109 item->setStretchFactor(stretch, orientation);
110 }
111
stretchFactor(QGraphicsLayoutItem * layoutItem,Qt::Orientation orientation) const112 int QGraphicsGridLayoutEngine::stretchFactor(QGraphicsLayoutItem *layoutItem, Qt::Orientation orientation) const
113 {
114 if (QGraphicsGridLayoutEngineItem *item = findLayoutItem(layoutItem))
115 return item->stretchFactor(orientation);
116 return 0;
117 }
118
119 QT_END_NAMESPACE
120