KWindowShadow Class Reference

#include <kwindowshadow.h>

Inheritance diagram for KWindowShadow:

Public Member Functions
	KWindowShadow (QObject *parent=nullptr)
KWindowShadowTile::Ptr	bottomLeftTile () const
KWindowShadowTile::Ptr	bottomRightTile () const
KWindowShadowTile::Ptr	bottomTile () const
bool	create ()
void	destroy ()
bool	isCreated () const
KWindowShadowTile::Ptr	leftTile () const
QMargins	padding () const
KWindowShadowTile::Ptr	rightTile () const
void	setBottomLeftTile (KWindowShadowTile::Ptr tile)
void	setBottomRightTile (KWindowShadowTile::Ptr tile)
void	setBottomTile (KWindowShadowTile::Ptr tile)
void	setLeftTile (KWindowShadowTile::Ptr tile)
void	setPadding (const QMargins &padding)
void	setRightTile (KWindowShadowTile::Ptr tile)
void	setTopLeftTile (KWindowShadowTile::Ptr tile)
void	setTopRightTile (KWindowShadowTile::Ptr tile)
void	setTopTile (KWindowShadowTile::Ptr tile)
void	setWindow (QWindow *window)
KWindowShadowTile::Ptr	topLeftTile () const
KWindowShadowTile::Ptr	topRightTile () const
KWindowShadowTile::Ptr	topTile () const
QWindow *	window () const
Public Member Functions inherited from QObject
	QObject (QObject *parent)
QBindable< QString >	bindableObjectName ()
bool	blockSignals (bool block)
const QObjectList &	children () const const
QMetaObject::Connection	connect (const QObject *sender, const char *signal, const char *method, Qt::ConnectionType type) const const
void	deleteLater ()
void	destroyed (QObject *obj)
bool	disconnect (const char *signal, const QObject *receiver, const char *method) const const
bool	disconnect (const QObject *receiver, const char *method) const const
void	dumpObjectInfo () const const
void	dumpObjectTree () const const
QList< QByteArray >	dynamicPropertyNames () const const
virtual bool	event (QEvent *e)
virtual bool	eventFilter (QObject *watched, QEvent *event)
T	findChild (const QString &name, Qt::FindChildOptions options) const const
QList< T >	findChildren (const QRegularExpression &re, Qt::FindChildOptions options) const const
QList< T >	findChildren (const QString &name, Qt::FindChildOptions options) const const
QList< T >	findChildren (Qt::FindChildOptions options) const const
bool	inherits (const char *className) const const
void	installEventFilter (QObject *filterObj)
bool	isQuickItemType () const const
bool	isWidgetType () const const
bool	isWindowType () const const
void	killTimer (int id)
virtual const QMetaObject *	metaObject () const const
void	moveToThread (QThread *targetThread)
QString	objectName () const const
void	objectNameChanged (const QString &objectName)
QObject *	parent () const const
QVariant	property (const char *name) const const
	Q_CLASSINFO (Name, Value)
	Q_EMIT Q_EMIT
	Q_ENUM (...)
	Q_ENUM_NS (...)
	Q_ENUMS (...)
	Q_FLAG (...)
	Q_FLAG_NS (...)
	Q_FLAGS (...)
	Q_GADGET Q_GADGET
	Q_GADGET_EXPORT (EXPORT_MACRO)
	Q_INTERFACES (...)
	Q_INVOKABLE Q_INVOKABLE
	Q_MOC_INCLUDE Q_MOC_INCLUDE
	Q_NAMESPACE Q_NAMESPACE
	Q_NAMESPACE_EXPORT (EXPORT_MACRO)
	Q_OBJECT Q_OBJECT
	Q_PROPERTY (...)
	Q_REVISION Q_REVISION
	Q_SET_OBJECT_NAME (Object)
	Q_SIGNAL Q_SIGNAL
	Q_SIGNALS Q_SIGNALS
	Q_SLOT Q_SLOT
	Q_SLOTS Q_SLOTS
T	qobject_cast (const QObject *object)
T	qobject_cast (QObject *object)
	QT_NO_NARROWING_CONVERSIONS_IN_CONNECT QT_NO_NARROWING_CONVERSIONS_IN_CONNECT
void	removeEventFilter (QObject *obj)
void	setObjectName (const QString &name)
void	setObjectName (QAnyStringView name)
void	setParent (QObject *parent)
bool	setProperty (const char *name, const QVariant &value)
bool	setProperty (const char *name, QVariant &&value)
bool	signalsBlocked () const const
int	startTimer (int interval, Qt::TimerType timerType)
int	startTimer (std::chrono::milliseconds interval, Qt::TimerType timerType)
QThread *	thread () const const

Additional Inherited Members
Public Types inherited from QObject
typedef	QObjectList
Properties inherited from QObject
	objectName
Static Public Member Functions inherited from QObject
QMetaObject::Connection	connect (const QObject *sender, const char *signal, const QObject *receiver, const char *method, Qt::ConnectionType type)
QMetaObject::Connection	connect (const QObject *sender, const QMetaMethod &signal, const QObject *receiver, const QMetaMethod &method, Qt::ConnectionType type)
QMetaObject::Connection	connect (const QObject *sender, PointerToMemberFunction signal, const QObject *context, Functor functor, Qt::ConnectionType type)
QMetaObject::Connection	connect (const QObject *sender, PointerToMemberFunction signal, const QObject *receiver, PointerToMemberFunction method, Qt::ConnectionType type)
QMetaObject::Connection	connect (const QObject *sender, PointerToMemberFunction signal, Functor functor)
bool	disconnect (const QMetaObject::Connection &connection)
bool	disconnect (const QObject *sender, const char *signal, const QObject *receiver, const char *method)
bool	disconnect (const QObject *sender, const QMetaMethod &signal, const QObject *receiver, const QMetaMethod &method)
bool	disconnect (const QObject *sender, PointerToMemberFunction signal, const QObject *receiver, PointerToMemberFunction method)
QString	tr (const char *sourceText, const char *disambiguation, int n)
Protected Member Functions inherited from QObject
virtual void	childEvent (QChildEvent *event)
virtual void	connectNotify (const QMetaMethod &signal)
virtual void	customEvent (QEvent *event)
virtual void	disconnectNotify (const QMetaMethod &signal)
bool	isSignalConnected (const QMetaMethod &signal) const const
int	receivers (const char *signal) const const
QObject *	sender () const const
int	senderSignalIndex () const const
virtual void	timerEvent (QTimerEvent *event)

Detailed Description

The KWindowShadow class represents a drop-shadow that is drawn by the compositor.

The KWindowShadow is composed of multiple tiles. The top left tile, the top right tile, the bottom left tile, and the bottom right tile are rendered as they are. The top tile and the bottom tile are stretched in x direction; the left tile and the right tile are stretched in y direction. Several KWindowShadow objects can share shadow tiles to reduce memory usage. You have to specify padding() along the shadow tiles. The padding values indicate how much the KWindowShadow sticks outside the decorated window.

Once the KWindowShadow is created, you're not allowed to attach or detach any shadow tiles, change padding(), or change window(). In order to do so, you have to destroy() the shadow first, update relevant properties, and create() the shadow again.

Definition at line 79 of file kwindowshadow.h.

Constructor & Destructor Documentation

KWindowShadow()

KWindowShadow::KWindowShadow ( QObject * parent = nullptr )

explicit

Definition at line 57 of file kwindowshadow.cpp.

~KWindowShadow()

KWindowShadow::~KWindowShadow ( )

override

Definition at line 63 of file kwindowshadow.cpp.

Member Function Documentation

bottomLeftTile()

KWindowShadowTile::Ptr KWindowShadow::bottomLeftTile

(

)

const

Returns the bottom-left tile attached to the KWindowShadow.

Definition at line 187 of file kwindowshadow.cpp.

bottomRightTile()

KWindowShadowTile::Ptr KWindowShadow::bottomRightTile

(

)

const

Returns the bottom-right tile attached to the KWindowShadow.

Definition at line 153 of file kwindowshadow.cpp.

bottomTile()

KWindowShadowTile::Ptr KWindowShadow::bottomTile

(

)

const

Returns the bottom tile attached to the KWindowShadow.

Definition at line 170 of file kwindowshadow.cpp.

create()

bool KWindowShadow::create

(

)

Allocates the platform resources associated with the KWindowShadow.

Once the native platform resources have been allocated, you're not allowed to attach or detach shadow tiles, change the padding or the target window. If you want to do so, you must destroy() the shadow, change relevant attributes and call create() again.

Returns true if the creation succeeded, otherwise returns false.

Definition at line 243 of file kwindowshadow.cpp.

destroy()

void KWindowShadow::destroy

(

)

Releases the platform resources associated with the KWindowShadow.

Calling destroy() after window() had been destroyed will result in a no-op.

Definition at line 261 of file kwindowshadow.cpp.

isCreated()

bool KWindowShadow::isCreated

(

)

const

Returns true if the platform resources associated with the shadow have been allocated.

Definition at line 238 of file kwindowshadow.cpp.

leftTile()

KWindowShadowTile::Ptr KWindowShadow::leftTile

(

)

const

Returns the left tile attached to the KWindowShadow.

Definition at line 68 of file kwindowshadow.cpp.

padding()

QMargins KWindowShadow::padding

(

)

const

Returns the padding of the KWindowShadow.

The padding values specify the visible extents of the shadow. The top left tile is rendered with an offset of -padding().left() and -padding().top().

Definition at line 204 of file kwindowshadow.cpp.

rightTile()

KWindowShadowTile::Ptr KWindowShadow::rightTile

(

)

const

Returns the right tile attached to the KWindowShadow.

Definition at line 136 of file kwindowshadow.cpp.

setBottomLeftTile()

void KWindowShadow::setBottomLeftTile

(

KWindowShadowTile::Ptr

tile

)

Attaches the bottom-left tile to the KWindowShadow.

Definition at line 192 of file kwindowshadow.cpp.

setBottomRightTile()

void KWindowShadow::setBottomRightTile

(

KWindowShadowTile::Ptr

tile

)

Attaches the bottom-right tile to the KWindowShadow.

Definition at line 158 of file kwindowshadow.cpp.

setBottomTile()

void KWindowShadow::setBottomTile

(

KWindowShadowTile::Ptr

tile

)

Attaches the bottom tile to the KWindowShadow.

Definition at line 175 of file kwindowshadow.cpp.

setLeftTile()

void KWindowShadow::setLeftTile

(

KWindowShadowTile::Ptr

tile

)

Attaches the left tile to the KWindowShadow.

Definition at line 73 of file kwindowshadow.cpp.

setPadding()

void KWindowShadow::setPadding

(

const QMargins &

padding

)

Sets the padding on the KWindowShadow.

If the padding values are smaller than the sizes of the shadow tiles, then the shadow will overlap with the window() and will be rendered behind window(). E.g. if all padding values are set to 0, then the shadow will be completely occluded by the window().

Definition at line 209 of file kwindowshadow.cpp.

setRightTile()

void KWindowShadow::setRightTile

(

KWindowShadowTile::Ptr

tile

)

Attaches the right tile to the KWindowShadow.

Definition at line 141 of file kwindowshadow.cpp.

setTopLeftTile()

void KWindowShadow::setTopLeftTile

(

KWindowShadowTile::Ptr

tile

)

Attaches the top-left tile to the KWindowShadow.

Definition at line 90 of file kwindowshadow.cpp.

setTopRightTile()

void KWindowShadow::setTopRightTile

(

KWindowShadowTile::Ptr

tile

)

Attaches the top-right tile to the KWindowShadow.

Definition at line 124 of file kwindowshadow.cpp.

setTopTile()

void KWindowShadow::setTopTile

(

KWindowShadowTile::Ptr

tile

)

Attaches the top tile to the KWindowShadow.

Definition at line 107 of file kwindowshadow.cpp.

setWindow()

void KWindowShadow::setWindow

(

QWindow *

window

)

Sets the window behind which the KWindowShadow will be rendered.

Note that the KWindowShadow does not track the platform surface. If for whatever reason the native platform surface is deleted and then created, you must to destroy() the shadow and create() it again yourself.

Definition at line 226 of file kwindowshadow.cpp.

topLeftTile()

KWindowShadowTile::Ptr KWindowShadow::topLeftTile

(

)

const

Returns the top-left tile attached to the KWindowShadow.

Definition at line 85 of file kwindowshadow.cpp.

topRightTile()

KWindowShadowTile::Ptr KWindowShadow::topRightTile

(

)

const

Returns the top-right tile attached to the KWindowShadow.

Definition at line 119 of file kwindowshadow.cpp.

topTile()

KWindowShadowTile::Ptr KWindowShadow::topTile

(

)

const

Returns the top tile attached to the KWindowShadow.

Definition at line 102 of file kwindowshadow.cpp.

window()

QWindow * KWindowShadow::window

(

)

const

Returns the window behind which the KWindowShadow will be rendered.

Definition at line 221 of file kwindowshadow.cpp.

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The documentation for this class was generated from the following files:

• kwindowshadow.h
• kwindowshadow.cpp