void EditorMagnifierItem::paint(QPainter * painter,
const QStyleOptionGraphicsItem *option,
QWidget * widget)
{
Q_UNUSED(option);
Q_UNUSED(widget);
if ( !scene() )
return;
QRectF rect = getRect();
EditorScene *scn = qobject_cast<EditorScene *>( scene() );
if (rect.isValid() && m_valid && scn)
{
updateMask();
painter->save(); // because clipping is active !!
QPainterPath clipPath;
clipPath.addEllipse(getRect().center(), getRect().width() / 2,getRect().width() / 2);
painter->setClipPath(clipPath);
painter->setClipping(true);
// TODO add extracted image to a cache !!!
QRectF extractRect( rect.translated( pos() - scn->getUnderlayOffset() ) );
int extractWidth = extractRect.width() / m_magnifyingFactor;
extractRect.adjust(extractWidth,extractWidth,-extractWidth,-extractWidth);
QRectF bgRect = scn->getUnderlayImage().rect();
QRectF croppedRect = extractRect.intersected(bgRect);
if ( !croppedRect.isNull() )
{
QImage background = scn->getUnderlayImage().copy( croppedRect.toRect() );
QImage mag = background.scaled(rect.size().toSize(),Qt::KeepAspectRatio,Qt::SmoothTransformation);
painter->drawImage(rect,mag);
}
painter->drawPixmap(rect.topLeft(), m_imgMask);
painter->restore();
}
// draw a box if selected
if( isSelected() )
{
painter->save();
QPen pen;
pen.setCosmetic(true);
pen.setColor(Qt::black);
pen.setWidth(1);
pen.setStyle(Qt::DotLine);
painter->setPen(pen);
painter->drawRect(rect);
painter->restore();
}
}
void EditorBlurItem::paint(QPainter * painter,
const QStyleOptionGraphicsItem *option,
QWidget * widget)
{
Q_UNUSED(option);
Q_UNUSED(widget);
if ( !scene() )
return;
QRectF rect( boundingRect() );
EditorScene *scn = qobject_cast<EditorScene *>( scene() );
if (rect.isValid() && m_valid && scn)
{
QImage background = scn->getUnderlayImage().copy( rect.translated( pos() - scn->getUnderlayOffset() ).toRect() );
QImage blur = background.scaled(background.size() / 4,Qt::KeepAspectRatio,Qt::SmoothTransformation);
painter->drawImage(rect,blur);
}
// draw a box if selected
if( isSelected() )
{
painter->save();
QPen pen;
pen.setCosmetic(true);
pen.setColor(Qt::black);
pen.setWidth(1);
pen.setStyle(Qt::DotLine);
painter->setPen(pen);
painter->drawRect(rect);
painter->restore();
}
}
