void IconDelegate::_PaintBlue( QPainter *painter, const QStyleOptionViewItem &option, const QModelIndex & index ) const
{
QColor itemColor(Qt::blue);//Qt::GlobalColor
QPen penLine;
//setSybol rect
QRect rectForSybol = _GetSybolRectForGray(option);
penLine.setColor(itemColor);
painter->setPen(penLine);
painter->setBrush(itemColor);//设置画刷颜色
painter->drawEllipse(rectForSybol);
}
void IconDelegate::_PaintRed( QPainter *painter, const QStyleOptionViewItem &option, const QModelIndex & index ) const
{
QColor itemColor(Qt::red);//Qt::GlobalColor
QPen penLine;
//setSybol rect
QRect rectForSybol = _GetSybolRectForGreenRed(option);
QPolygon sybolQPolygon = _GetSybolQPolygonForRed(rectForSybol);
penLine.setColor(itemColor);
painter->setPen(penLine);
painter->setBrush(itemColor);//设置画刷颜色
painter->drawPolygon(sybolQPolygon);
}
void
GraphicsMovieItem::paintRect( QPainter* painter, const QStyleOptionGraphicsItem* option )
{
QRectF drawRect;
bool drawRound;
// Disable the matrix transformations
painter->setWorldMatrixEnabled( false );
painter->setRenderHint( QPainter::Antialiasing );
// Get the transformations required to map the text on the viewport
QTransform viewPortTransform = Timeline::getInstance()->tracksView()->viewportTransform();
// Determine if a drawing optimization can be used
if ( option->exposedRect.left() > AbstractGraphicsItem::RounderRectRadius &&
option->exposedRect.right() < boundingRect().right() - AbstractGraphicsItem::RounderRectRadius )
{
// Optimized: paint only the exposed (horizontal) area
drawRect = QRectF( option->exposedRect.left(),
boundingRect().top(),
option->exposedRect.right(),
boundingRect().bottom() );
drawRound = false;
}
else
{
// Unoptimized: the item must be fully repaint
drawRect = boundingRect();
drawRound = true;
}
// Do the transformation
QRectF mapped = deviceTransform( viewPortTransform ).mapRect( drawRect );
QLinearGradient gradient( mapped.topLeft(), mapped.bottomLeft() );
gradient.setColorAt( 0, QColor::fromRgb( 78, 78, 78 ) );
gradient.setColorAt( 0.4, QColor::fromRgb( 72, 72, 72 ) );
gradient.setColorAt( 0.4, QColor::fromRgb( 50, 50, 50 ) );
gradient.setColorAt( 1, QColor::fromRgb( 45, 45, 45 ) );
painter->setPen( Qt::NoPen );
painter->setBrush( QBrush( gradient ) );
if ( drawRound )
painter->drawRoundedRect( mapped, AbstractGraphicsItem::RounderRectRadius,
AbstractGraphicsItem::RounderRectRadius );
else
painter->drawRect( mapped );
if ( itemColor().isValid() )
{
QRectF mediaColorRect = mapped.adjusted( 3, 2, -3, -2 );
painter->setPen( QPen( itemColor(), 2 ) );
painter->drawLine( mediaColorRect.topLeft(), mediaColorRect.topRight() );
}
if ( isSelected() )
{
setZValue( zSelected() );
painter->setPen( Qt::yellow );
painter->setBrush( Qt::NoBrush );
mapped.adjust( 0, 0, 0, -1 );
if ( drawRound )
painter->drawRoundedRect( mapped, AbstractGraphicsItem::RounderRectRadius,
AbstractGraphicsItem::RounderRectRadius);
else
painter->drawRect( mapped );
}
else
setZValue( zNotSelected() );
}
