QGraphicsColorizeEffect Class

The QGraphicsColorizeEffect class provides a colorize effect. More...

Header: #include <QGraphicsColorizeEffect>
qmake: QT += widgets
Since: Qt 4.6
Inherits: QGraphicsEffect

This class was introduced in Qt 4.6.

Properties

Public Functions

QGraphicsColorizeEffect(QObject *parent = nullptr)
virtual ~QGraphicsColorizeEffect()
QColor color() const
qreal strength() const

Public Slots

void setColor(const QColor &c)
void setStrength(qreal strength)

Signals

void colorChanged(const QColor &color)
void strengthChanged(qreal strength)

Reimplemented Protected Functions

virtual void draw(QPainter *painter) override

Detailed Description

A colorize effect renders the source with a tint of its color(). The color can be modified using the setColor() function.

By default, the color is light blue (QColor(0, 0, 192)).

See also QGraphicsDropShadowEffect, QGraphicsBlurEffect, and QGraphicsOpacityEffect.

Property Documentation

color : QColor

This property holds the color of the effect.

By default, the color is light blue (QColor(0, 0, 192)).

Access functions:

QColor color() const
void setColor(const QColor &c)

Notifier signal:

void colorChanged(const QColor &color)

strength : qreal

This property holds the strength of the effect.

By default, the strength is 1.0. A strength 0.0 equals to no effect, while 1.0 means full colorization.

Access functions:

qreal strength() const
void setStrength(qreal strength)

Notifier signal:

void strengthChanged(qreal strength)

Member Function Documentation

QGraphicsColorizeEffect::QGraphicsColorizeEffect(QObject *parent = nullptr)

Constructs a new QGraphicsColorizeEffect instance. The parent parameter is passed to QGraphicsEffect's constructor.

[signal] void QGraphicsColorizeEffect::colorChanged(const QColor &color)

This signal is emitted whenever the effect's color changes. The color parameter holds the effect's new color.

Note: Notifier signal for property color.

[signal] void QGraphicsColorizeEffect::strengthChanged(qreal strength)

This signal is emitted whenever setStrength() changes the colorize strength property. strength contains the new strength value of the colorize effect.

Note: Notifier signal for property strength.

[virtual] QGraphicsColorizeEffect::~QGraphicsColorizeEffect()

Destroys the effect.

[override virtual protected] void QGraphicsColorizeEffect::draw(QPainter *painter)

Reimplements: QGraphicsEffect::draw(QPainter *painter).

© The Qt Company Ltd
Licensed under the GNU Free Documentation License, Version 1.3.
https://doc.qt.io/qt-5.14/qgraphicscolorizeeffect.html