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-rw-r--r--examples/effects/fademessage/fademessage.cpp28
1 files changed, 17 insertions, 11 deletions
diff --git a/examples/effects/fademessage/fademessage.cpp b/examples/effects/fademessage/fademessage.cpp
index 818d00f..4128a59 100644
--- a/examples/effects/fademessage/fademessage.cpp
+++ b/examples/effects/fademessage/fademessage.cpp
@@ -43,7 +43,7 @@
#include <QtGui>
-FadeMessage::FadeMessage(QWidget *parent): QGraphicsView(parent), m_index(0.0)
+FadeMessage::FadeMessage(QWidget *parent): QGraphicsView(parent)
{
setScene(&m_scene);
setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
@@ -51,9 +51,12 @@ FadeMessage::FadeMessage(QWidget *parent): QGraphicsView(parent), m_index(0.0)
setupScene();
- m_timeLine = new QTimeLine(500, this);
- m_timeLine->setCurveShape(QTimeLine::EaseInOutCurve);
- connect(m_timeLine, SIGNAL(valueChanged(qreal)), m_effect, SLOT(setStrength(qreal)));
+ m_animation = new QPropertyAnimation(m_effect, "strength", this);
+ m_animation->setDuration(500);
+ m_animation->setEasingCurve(QEasingCurve::InOutSine);
+ m_animation->setStartValue(0);
+ m_animation->setEndValue(1);
+
setRenderHint(QPainter::Antialiasing, true);
setFrameStyle(QFrame::NoFrame);
@@ -63,13 +66,12 @@ void FadeMessage::togglePopup()
{
if (m_message->isVisible()) {
m_message->setVisible(false);
- m_timeLine->setDirection(QTimeLine::Backward);
- m_timeLine->start();
+ m_animation->setDirection(QAbstractAnimation::Backward);
} else {
m_message->setVisible(true);
- m_timeLine->setDirection(QTimeLine::Forward);
- m_timeLine->start();
+ m_animation->setDirection(QAbstractAnimation::Forward);
}
+ m_animation->start();
}
void FadeMessage::setupScene()
@@ -94,13 +96,17 @@ void FadeMessage::setupScene()
QFont font;
font.setPointSize(font.pointSize() * 2);
font.setBold(true);
- int fh = QFontMetrics(font).height();
+ QFontMetrics fontMetrics(font);
+ int fh = fontMetrics.height();
+
+ QString sceneText = "Qt Everywhere!";
+ int sceneTextWidth = fontMetrics.width(sceneText);
- QGraphicsRectItem *block = m_scene.addRect(50, 300, 300, fh + 3);
+ QGraphicsRectItem *block = m_scene.addRect(50, 300, sceneTextWidth, fh + 3);
block->setPen(Qt::NoPen);
block->setBrush(QColor(102, 153, 51));
- QGraphicsTextItem *text = m_scene.addText("Qt Everywhere!", font);
+ QGraphicsTextItem *text = m_scene.addText(sceneText, font);
text->setDefaultTextColor(Qt::white);
text->setPos(50, 300);
block->setZValue(2);