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).