The QGLShader class allows OpenGL shaders to be compiled. More...

Inheritance diagram for QGLShader:

Public Typedefs
using	ShaderType = QFlags< ShaderTypeBit >

Public Types
enum	ShaderTypeBit

Public Methods
	QGLShader (QGLShader::ShaderType type, const QGLContext context, QObject parent=nullptr)

	QGLShader (QGLShader::ShaderType type, QObject *parent=nullptr)

virtual	~QGLShader ()

bool	compileSourceCode (const char *source)

bool	compileSourceCode (const QByteArray &source)

bool	compileSourceCode (const QString &source)

bool	compileSourceFile (const QString &fileName)

bool	isCompiled () const

QString	log () const

GLuint	shaderId () const

QGLShader::ShaderType	shaderType () const

QByteArray	sourceCode () const

Public Methods inherited from QObject
	QObject (QObject *parent=nullptr)

	~QObject ()

bool	blockSignals (bool block)

const QList< QObject * > &	children () const

bool	connect (const QObject *sender, const QString &signalMethod, const QString &location, const QString &slotMethod, Qt::ConnectionType type=Qt::AutoConnection)

bool	connect (const QObject *sender, const QString &signalMethod, const QString &slotMethod, Qt::ConnectionType type=Qt::AutoConnection)

bool	disconnect (const QObject *receiver, const QString &slotMethod=QString ()) const

bool	disconnect (const QString &signalMethod, const QString &location, const QObject *receiver=nullptr, const QString &slotMethod=QString ()) const

bool	disconnect (const QString &signalMethod=QString (), const QObject *receiver=nullptr, const QString &slotMethod=QString ()) const

void	dumpObjectInfo ()

void	dumpObjectTree ()

QList< QString >	dynamicPropertyNames () const

virtual bool	event (QEvent *event)

virtual bool	eventFilter (QObject watched, QEvent event)

template<typename T >
T	findChild (const QString &childName=QString ()) const

template<class T >
QList< T >	findChildren (const QRegularExpression &regExp, Qt::FindChildOptions options=Qt::FindChildrenRecursively) const

template<class T >
QList< T >	findChildren (const QString &childName=QString (), Qt::FindChildOptions options=Qt::FindChildrenRecursively) const

bool	inherits (const QString &className) const

void	installEventFilter (QObject *filterObj)

bool	isWidgetType () const

bool	isWindowType () const

void	killTimer (int id)

const QMetaObject *	metaObject () const

void	moveToThread (QThread *targetThread)

QString	objectName () const

QObject *	parent () const

template<class T = QVariant>
T	property (const QString &name) const

void	removeEventFilter (QObject *obj)

void	setObjectName (const QString &name)

void	setParent (QObject *parent)

bool	setProperty (const QString &name, const QVariant &value)

bool	signalsBlocked () const

int	startTimer (int interval, Qt::TimerType timerType=Qt::CoarseTimer)

QThread *	thread () const

Static Public Methods
static bool	hasOpenGLShaders (ShaderType type, const QGLContext *context=nullptr)

Static Public Methods inherited from QObject
static bool	connect (const QObject sender, const QMetaMethod &signalMethod, const QObject receiver, const QMetaMethod &slotMethod, Qt::ConnectionType type=Qt::AutoConnection)

static bool	connect (const QObject sender, const QString &signalMethod, const QObject receiver, const QString &slotMethod, Qt::ConnectionType type=Qt::AutoConnection, const QString &location=QString ())

static bool	connect (const QObject sender, const QString &signalMethod, const QString &location, const QObject receiver, const QString &slotMethod, Qt::ConnectionType type=Qt::AutoConnection)

template<class Sender , class SignalClass , class... SignalArgs, class Receiver , class SlotClass , class... SlotArgs, class SlotReturn >
static bool	connect (const Sender sender, void (SignalClass::signalMethod)(SignalArgs...), const Receiver receiver, SlotReturn (SlotClass::slotMethod)(SlotArgs...), Qt::ConnectionType type=Qt::AutoConnection)

template<class Sender , class SignalClass , class... SignalArgs, class Receiver , class T >
static bool	connect (const Sender sender, void (SignalClass::signalMethod)(SignalArgs...), const Receiver *receiver, T slotLambda, Qt::ConnectionType type=Qt::AutoConnection)

static bool	disconnect (const QObject sender, const QMetaMethod &signalMethod, const QObject receiver, const QMetaMethod &slotMethod)

static bool	disconnect (const QObject sender, const QString &signalMethod, const QObject receiver, const QString &slotMethod)

static bool	disconnect (const QObject sender, const QString &signalMethod, const QString &location, const QObject receiver, const QString &slotMethod)

static bool	disconnect (const QObject sender, std::nullptr_t, const QObject receiver, std::nullptr_t)

template<class Sender , class SignalClass , class... SignalArgs, class Receiver , class SlotClass , class... SlotArgs, class SlotReturn >
static bool	disconnect (const Sender sender, void (SignalClass::signalMethod)(SignalArgs...), const Receiver receiver, SlotReturn (SlotClass::slotMethod)(SlotArgs...))

template<class Sender , class SignalClass , class... SignalArgs, class Receiver >
static bool	disconnect (const Sender sender, void (SignalClass::signalMethod)(SignalArgs...), const Receiver *receiver, std::nullptr_t slotMethod=nullptr)

template<class Sender , class SignalClass , class... SignalArgs, class Receiver , class T >
static bool	disconnect (const Sender sender, void (SignalClass::signalMethod)(SignalArgs...), const Receiver *receiver, T slotMethod)

static QMetaObject &	staticMetaObject ()

static QString	tr (const char text, const char comment=nullptr, std::optional< int > numArg=std::optional< int >())

Friends
class	QGLShaderProgram

Additional Inherited Members
Public Signals inherited from QObject
void	destroyed (QObject *obj=nullptr)

void	objectNameChanged (const QString &objectName)

Public Slots inherited from QObject
void	deleteLater ()

Protected Methods inherited from QObject
virtual void	childEvent (QChildEvent *event)

virtual void	connectNotify (const QMetaMethod &signalMethod) const

virtual void	customEvent (QEvent *event)

virtual void	disconnectNotify (const QMetaMethod &signalMethod) const

bool	isSignalConnected (const QMetaMethod &signalMethod) const

int	receivers (const QString &signal) const

QObject *	sender () const

int	senderSignalIndex () const

virtual void	timerEvent (QTimerEvent *event)

Properties inherited from QObject
	objectName

Related Functions inherited from QObject
T	qobject_cast (QObject *object)

	QObjectList

Detailed Description

The QGLShader class allows OpenGL shaders to be compiled.

This class supports shaders written in the OpenGL Shading Language (GLSL) and in the OpenGL/ES Shading Language (GLSL/ES).

QGLShader and QGLShaderProgram shelter the programmer from the details of compiling and linking vertex and fragment shaders.

See also: QGLShaderProgram

Member Typedef Documentation

QGLShader::ShaderType

Typedef for QFlags<ShaderTypeBit>. Refer to QGLShader::ShaderTypeBit for documentation.

Member Enumeration Documentation

enum QGLShader::ShaderTypeBit

This enum specifies the type of QGLShader that is being created.

Constant	Value	Description
`QGLShader::Vertex`	`0x0001`	Vertex shader written in the OpenGL Shading Language (GLSL).
`QGLShader::Fragment`	`0x0002`	Fragment shader written in the OpenGL Shading Language (GLSL).
`QGLShader::Geometry`	`0x0004`	Geometry shaders written in the OpenGL Shading Language (GLSL), based on the GL_EXT_geometry_shader4 extension.

Constructor & Destructor Documentation

QGLShader::QGLShader	(	QGLShader::ShaderType	type,
		QObject *	parent = `nullptr`
	)

explicit

Constructs a new QGLShader object of the specified type and attaches it to parent. If shader programs are not supported, QGLShaderProgram::hasOpenGLShaderPrograms() will return false.

This constructor is normally followed by a call to compileSourceCode() or compileSourceFile().

The shader will be associated with the current QGLContext.

See also: compileSourceCode(), compileSourceFile()

QGLShader::QGLShader	(	QGLShader::ShaderType	type,
		const QGLContext *	context,
		QObject *	parent = `nullptr`
	)

Constructs a new QGLShader object of the specified type and attaches it to parent. If shader programs are not supported, then QGLShaderProgram::hasOpenGLShaderPrograms() will return false.

This constructor is normally followed by a call to compileSourceCode() or compileSourceFile().

The shader will be associated with context.

See also: compileSourceCode(), compileSourceFile()

QGLShader::~QGLShader ( )

virtual

Deletes this shader. If the shader has been attached to a QGLShaderProgram object, then the actual shader will stay around until the QGLShaderProgram is destroyed.

Method Documentation

bool QGLShader::compileSourceCode ( const char * source )

Sets the source code for this shader and compiles it. Returns true if the source was successfully compiled, false otherwise.

See also: compileSourceFile()

bool QGLShader::compileSourceCode ( const QByteArray & source )

Sets the source code for this shader and compiles it. Returns true if the source was successfully compiled, false otherwise.

See also: compileSourceFile()

bool QGLShader::compileSourceCode ( const QString & source )

Sets the source code for this shader and compiles it. Returns true if the source was successfully compiled, false otherwise.

See also: compileSourceFile()

bool QGLShader::compileSourceFile ( const QString & fileName )

Sets the source code for this shader to the contents of fileName and compiles it. Returns true if the file could be opened and the source compiled, false otherwise.

See also: compileSourceCode()

bool QGLShader::hasOpenGLShaders	(	ShaderType	type,
		const QGLContext *	context = `nullptr`
	)

static

Returns true if shader programs of the given type are supported on this system; false otherwise. The context is used to resolve the GLSL extensions. If context is a nullptr then QGLContext::currentContext() is used.

bool QGLShader::isCompiled ( ) const

Returns true if this shader has been compiled; false otherwise.