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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
46QT_BEGIN_NAMESPACE
47
48/*
49 returns \c true if the size policy returns \c true for either hasHeightForWidth()
50 or hasWidthForHeight()
51 */
52bool QGraphicsGridLayoutEngineItem::hasDynamicConstraint() const
53{
54 return QGraphicsLayoutItemPrivate::get(q_layoutItem)->hasHeightForWidth()
55 || QGraphicsLayoutItemPrivate::get(q_layoutItem)->hasWidthForHeight();
56}
57
58Qt::Orientation QGraphicsGridLayoutEngineItem::dynamicConstraintOrientation() const
59{
60 if (QGraphicsLayoutItemPrivate::get(q_layoutItem)->hasHeightForWidth())
61 return Qt::Vertical;
62 else //if (QGraphicsLayoutItemPrivate::get(q_layoutItem)->hasWidthForHeight())
63 return Qt::Horizontal;
64}
65
66/*!
67 \internal
68
69 If this returns true, the layout will arrange just as if the item was never added to the layout.
70 (Note that this shouldn't lead to a "double spacing" where the item was hidden)
71*/
72bool QGraphicsGridLayoutEngineItem::isEmpty() const
73{
74 return q_layoutItem->isEmpty();
75}
76
77void QGraphicsGridLayoutEngine::setAlignment(QGraphicsLayoutItem *graphicsLayoutItem, Qt::Alignment alignment)
78{
79 if (QGraphicsGridLayoutEngineItem *gridEngineItem = findLayoutItem(graphicsLayoutItem)) {
80 gridEngineItem->setAlignment(alignment);
81 invalidate();
82 }
83}
84
85Qt::Alignment QGraphicsGridLayoutEngine::alignment(QGraphicsLayoutItem *graphicsLayoutItem) const
86{
87 if (QGraphicsGridLayoutEngineItem *gridEngineItem = findLayoutItem(graphicsLayoutItem))
88 return gridEngineItem->alignment();
89 return { };
90}
91
92
93void QGraphicsGridLayoutEngine::setStretchFactor(QGraphicsLayoutItem *layoutItem, int stretch,
94 Qt::Orientation orientation)
95{
96 Q_ASSERT(stretch >= 0);
97
98 if (QGraphicsGridLayoutEngineItem *item = findLayoutItem(layoutItem))
99 item->setStretchFactor(stretch, orientation);
100}
101
102int QGraphicsGridLayoutEngine::stretchFactor(QGraphicsLayoutItem *layoutItem, Qt::Orientation orientation) const
103{
104 if (QGraphicsGridLayoutEngineItem *item = findLayoutItem(layoutItem))
105 return item->stretchFactor(orientation);
106 return 0;
107}
108
109QT_END_NAMESPACE
110