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Code Issues Releases Activity

Performance update, the previous version kept reloading the svg files and was a bit stupid, sorry. Now only updates when the value is changed.

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git-svn-id: svn://svn.openpilot.org/OpenPilot/trunk@497 ebee16cc-31ac-478f-84a7-5cbb03baadba
This commit is contained in:
edouard 2010-04-13 21:22:32 +00:00 committed by edouard
parent 15e8f69a0e
commit dbecc014b7
1 changed files with 21 additions and 21 deletions
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42
ground/src/experimental/DialTest/basicsvgdial.cpp
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@ -24,27 +24,6 @@ void BasicSvgDial::setRenderer(RendererType type)
void BasicSvgDial::paintEvent(QPaintEvent *event) { void BasicSvgDial::paintEvent(QPaintEvent *event) {
qDebug() << "in painEvent()"; qDebug() << "in painEvent()";
QGraphicsScene *s = scene();
s->clear();
m_backgroundItem = new QGraphicsSvgItem(backgroundFile);
m_backgroundItem->setZValue(-1);
m_needleItem = new QGraphicsSvgItem(needleFile);
QRectF rect = m_needleItem->boundingRect();
m_needleItem->translate(rect.width()/2,rect.height()/2);
m_needleItem->rotate(angle);
m_needleItem->translate(-rect.width()/2,-rect.height()/2);
m_needleItem->setZValue(0);
m_foregroundItem = new QGraphicsSvgItem(foregroundFile);
m_foregroundItem->setZValue(1);
s->addItem(m_backgroundItem);
s->addItem(m_needleItem);
s->addItem(m_foregroundItem);
s->setSceneRect(m_backgroundItem->boundingRect());
QGraphicsView::paintEvent(event); QGraphicsView::paintEvent(event);
qDebug() << "out paintEvent()"; qDebug() << "out paintEvent()";
@ -58,6 +37,7 @@ void BasicSvgDial::paintEvent(QPaintEvent *event) {
void BasicSvgDial::setAngle(int i) { void BasicSvgDial::setAngle(int i) {
qDebug() << "BasicDial::setAngle()"; qDebug() << "BasicDial::setAngle()";
angle = value2angle(i); angle = value2angle(i);
update(); update();
} }
@ -79,6 +59,26 @@ qreal BasicSvgDial::value2angle(qreal value) {
void BasicSvgDial::setValue(qreal value) { void BasicSvgDial::setValue(qreal value) {
angle = value2angle(value); angle = value2angle(value);
currentValue = value; currentValue = value;
QGraphicsScene *s = scene();
s->clear();
m_backgroundItem = new QGraphicsSvgItem(backgroundFile);
m_backgroundItem->setZValue(-1);
m_needleItem = new QGraphicsSvgItem(needleFile);
QRectF rect = m_needleItem->boundingRect();
m_needleItem->translate(rect.width()/2,rect.height()/2);
m_needleItem->rotate(angle);
m_needleItem->translate(-rect.width()/2,-rect.height()/2);
m_needleItem->setZValue(0);
m_foregroundItem = new QGraphicsSvgItem(foregroundFile);
m_foregroundItem->setZValue(1);
s->addItem(m_backgroundItem);
s->addItem(m_needleItem);
s->addItem(m_foregroundItem);
s->setSceneRect(m_backgroundItem->boundingRect());
update(); update();
} }