68 lines
2.0 KiB
Plaintext
68 lines
2.0 KiB
Plaintext
|
/*!
|
||
|
|
\headerfile QskQuickItem.h
|
||
|
|
\brief what a quick item
|
||
|
|
*/
|
||
|
|
|
||
|
|
class QskQuickItem
|
||
|
|
{
|
||
|
|
public:
|
||
|
|
|
||
|
|
/*!
|
||
|
|
\enum Flag
|
||
|
|
|
||
|
|
QQuick classes have a tendency to update items too early
|
||
|
|
and too often. To avoid processing of unwanted operations
|
||
|
|
QskControl implements a couple of modifications, that
|
||
|
|
can be en/disabled individually.
|
||
|
|
|
||
|
|
The default setting enables all attributes.
|
||
|
|
|
||
|
|
\var DeferredUpdate
|
||
|
|
|
||
|
|
Creating of paint nodes is blocked for all invisible nodes
|
||
|
|
( QQuickItem::isVisible() ).
|
||
|
|
|
||
|
|
\note Some more advanced algorithms have not yet been implemented,
|
||
|
|
such as viewport frustrum culling (i.e. hiding items outside of the
|
||
|
|
window geometry).
|
||
|
|
|
||
|
|
\var DeferredPolish
|
||
|
|
|
||
|
|
Calculation of layouts ( updateLayout() ) is blocked for all invisible
|
||
|
|
nodes ( QQuickItem::isVisible() ).
|
||
|
|
|
||
|
|
\var DeferredLayout
|
||
|
|
|
||
|
|
Updates of the implicit size is blocked until effectiveConstraint() or sizeHint()
|
||
|
|
is explicitly called. When being enabled the implicit size is not recalculated before
|
||
|
|
being requested - usually by a QskLayout.
|
||
|
|
|
||
|
|
\var CleanupOnVisibility
|
||
|
|
|
||
|
|
Delete scene graph nodes, when the item becomes hidden ( QQuickItem::isVisible() ).
|
||
|
|
Enabling this mode will reduce the memory footprint, but comes at the cost
|
||
|
|
of having to recreate nodes later.
|
||
|
|
|
||
|
|
\var PreferRasterForTextures
|
||
|
|
|
||
|
|
When creating textures from QskGraphic, prefer the raster paint
|
||
|
|
engine over the OpenGL paint engine.
|
||
|
|
|
||
|
|
\var DebugForceBackground
|
||
|
|
|
||
|
|
Always fill the background of thecontrol with a random color.
|
||
|
|
\note This flag is useful when analyzing layouts.
|
||
|
|
*/
|
||
|
|
|
||
|
|
/*!
|
||
|
|
\fn void setControlFlag( Flag, bool on = true );
|
||
|
|
*/
|
||
|
|
|
||
|
|
/*!
|
||
|
|
\fn void resetControlFlag( Flag );
|
||
|
|
*/
|
||
|
|
|
||
|
|
/*!
|
||
|
|
\fn bool testControlFlag( Flag ) const;
|
||
|
|
*/
|