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We need this change in order to bypass some of the QVariant itemChange
notifications from QGraphicsItem::setParentItem. All this is internal
stuff and we know what we do, so I don't consider the change too ugly.
Task-number: QTBUG-6877
Reviewed-by: alexis
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Reviewed-by: Trust Me
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This function is moved to graphicsitem private because it is needed by
multi-touch event handling and is not specific to bsptreeindex.
Reviewed-by: bnilsen
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Inverted all references of Qt::AscendingiOrder <-> Qt::DescendingOrder
to make the order parameter consistent with the stacking order, as stated in
the docs. The graphics scene index was using the wrong ordering convention.
Reviewed-by: andreas
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Reviewed-by: Trust Me
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Reviewed-by: Trust Me
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Reviewed-by: Trust Me
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Some QT_{BEGIN,END}_HEADER macros had been missing or misplaced.
Reviewed-by: thiago
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New method: QGraphicsSceneIndex::estimateTopLevelItems.
QGraphicsSceneIndex::estimateItems returns *all* items within the rect,
but we are only interested in the top-levels (those that are within the
rect themselves or have descendants within the rect) when doing
recursive drawing/item-lookup.
All auto-tests pass. Demos/examples/manualtests run fine.
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We don't have to do a stable sort anymore because the lessThan operator
now accounts for the insertion order. This also means we don't have to
sort all top-level items to preserve the insertion order in
QGraphicsScenePrivate::topLevelItemsInStackingOrder.
Reviewed-by: Andreas
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Ensure the index of indexed items are reset to -1.
Makes tst_QGraphicsScene::itemIndexMethod happy.
(this test passed before we actually started using the BSP from
the items() functions, see 6ee3fb750377eeedf161d96fef02c5fa336810e9)
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Mostly re-factoring of QGraphicsSceneIndexPrivate::recursive_items_helper
so it can re-use code from the scene (topLevelItemsInStackingOrder). That also
means we'll use the bsp tree in case of NoIndex instead of always looping
through the top-levels. This function is now almost identical to
QGraphicsScenePrivate::drawSubtreeRecursive, so it might be worth
looking into how we can abstract it even more and have one common
recursive function.
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Reviewed-by: Andreas
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This patch adds better support for untransformable items and removes
some redundant code.
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We'll keep this as private API for now.
Reviewed-by: Alexis
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This change removes all code that handles ItemIgnoresTransformations
from QGraphicsView, and changes the APIs of the scene index intersectors.
Reviewed-by: Alexis
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A few minor modifications only, marked some things as ### obsolete,
removed the public get/set for the index (it's internal anyway).
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Now the QGraphicsScene has no idea how works the index. So we can
improve it separatly, add new ones and benchmarks existing ones.
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Usefull for the POV of the scene and let the BSP update its internal
structure before the next event loop reentrancy.
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This basically move some logic from the scene to the index base class.
Lot of work need to be done in order to benefits from the device
transform. The sorting needs to be move in the BSP tree.
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We basically add a new index that implement the old BSP logic but in a
separate class instead of living into the QGraphicsScene. It will be
much more easier to add a new index method or for people to use their
own
Conflicts:
src/gui/graphicsview/qgraphicsitem.cpp
src/gui/graphicsview/qgraphicssceneindex.h
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