void KisScratchPad::paintEvent ( QPaintEvent * event ) {
if(!m_paintLayer) return;
QRectF imageRect = widgetToDocument().mapRect(QRectF(event->rect()));
QRect alignedImageRect =
imageRect.adjusted(-m_scaleBorderWidth, -m_scaleBorderWidth,
m_scaleBorderWidth, m_scaleBorderWidth).toAlignedRect();
QPointF offset = alignedImageRect.topLeft();
m_paintLayer->updateProjection(alignedImageRect);
KisPaintDeviceSP projection = m_paintLayer->projection();
QImage image = projection->convertToQImage(m_displayProfile,
alignedImageRect.x(),
alignedImageRect.y(),
alignedImageRect.width(),
alignedImageRect.height(),
KoColorConversionTransformation::IntentPerceptual,
KoColorConversionTransformation::BlackpointCompensation);
QPainter gc(this);
gc.fillRect(event->rect(), m_checkBrush);
gc.setRenderHints(QPainter::SmoothPixmapTransform);
gc.drawImage(QRectF(event->rect()), image, imageRect.translated(-offset));
QBrush brush(Qt::lightGray);
QPen pen(brush, 1, Qt::DotLine);
gc.setPen(pen);
if (m_cutoutOverlay.isValid()) {
gc.drawRect(m_cutoutOverlay);
}
if(!isEnabled()) {
QColor color(Qt::lightGray);
color.setAlphaF(0.5);
QBrush disabledBrush(color);
gc.fillRect(event->rect(), disabledBrush);
}
gc.end();
}
void QgsResidualPlotItem::paint( QPainter *painter, const QStyleOptionGraphicsItem *itemStyle, QWidget *pWidget )
{
Q_UNUSED( itemStyle );
Q_UNUSED( pWidget );
if ( mGCPList.size() < 1 || !painter )
{
return;
}
double widthMM = rect().width();
double heightMM = rect().height();
QPen enabledPen( QColor( 255, 0, 0, 255 ), 0.3, Qt::SolidLine, Qt::FlatCap, Qt::MiterJoin );
QPen disabledPen( QColor( 255, 0, 0, 85 ), 0.2, Qt::SolidLine, Qt::FlatCap, Qt::MiterJoin );
QBrush enabledBrush( QColor( 255, 255, 255, 255 ) );
QBrush disabledBrush( QColor( 255, 255, 255, 127 ) );
//draw all points and collect minimal mm/pixel ratio
double minMMPixelRatio = DBL_MAX;
double mmPixelRatio = 1;
painter->setRenderHint( QPainter::Antialiasing, true );
QgsGCPList::const_iterator gcpIt = mGCPList.constBegin();
for ( ; gcpIt != mGCPList.constEnd(); ++gcpIt )
{
QgsPointXY gcpCoords = ( *gcpIt )->pixelCoords();
double gcpItemMMX = ( gcpCoords.x() - mExtent.xMinimum() ) / mExtent.width() * widthMM;
double gcpItemMMY = ( 1 - ( gcpCoords.y() - mExtent.yMinimum() ) / mExtent.height() ) * heightMM;
if ( ( *gcpIt )->isEnabled() )
{
painter->setPen( enabledPen );
painter->setBrush( enabledBrush );
}
else
{
painter->setPen( disabledPen );
painter->setBrush( disabledBrush );
}
painter->drawRect( QRectF( gcpItemMMX - 0.5, gcpItemMMY - 0.5, 1, 1 ) );
QgsComposerUtils::drawText( painter, QPointF( gcpItemMMX + 2, gcpItemMMY + 2 ), QString::number( ( *gcpIt )->id() ), QFont() );
mmPixelRatio = maxMMToPixelRatioForGCP( *gcpIt, gcpItemMMX, gcpItemMMY );
if ( mmPixelRatio < minMMPixelRatio )
{
minMMPixelRatio = mmPixelRatio;
}
}
//draw residual arrows
gcpIt = mGCPList.constBegin();
for ( ; gcpIt != mGCPList.constEnd(); ++gcpIt )
{
QgsPointXY gcpCoords = ( *gcpIt )->pixelCoords();
double gcpItemMMX = ( gcpCoords.x() - mExtent.xMinimum() ) / mExtent.width() * widthMM;
double gcpItemMMY = ( 1 - ( gcpCoords.y() - mExtent.yMinimum() ) / mExtent.height() ) * heightMM;
if ( ( *gcpIt )->isEnabled() )
{
painter->setPen( enabledPen );
}
else
{
painter->setPen( disabledPen );
}
QPointF p1( gcpItemMMX, gcpItemMMY );
QPointF p2( gcpItemMMX + ( *gcpIt )->residual().x() * minMMPixelRatio, gcpItemMMY + ( *gcpIt )->residual().y() * minMMPixelRatio );
painter->drawLine( p1, p2 );
painter->setBrush( QBrush( painter->pen().color() ) );
QgsComposerUtils::drawArrowHead( painter, p2.x(), p2.y(), QgsComposerUtils::angle( p1, p2 ), 1 );
}
//draw scale bar
double initialScaleBarWidth = rect().width() / 5;
double scaleBarWidthUnits = rect().width() / 5 / minMMPixelRatio;
//a simple method to round to next nice number
int nDecPlaces;
if ( scaleBarWidthUnits < 1 )
{
nDecPlaces = -floor( log10( scaleBarWidthUnits ) );
scaleBarWidthUnits *= pow( 10.0, nDecPlaces );
scaleBarWidthUnits = ( int )( scaleBarWidthUnits + 0.5 );
scaleBarWidthUnits /= pow( 10.0, nDecPlaces );
}
else
{
nDecPlaces = ( int )log10( scaleBarWidthUnits );
scaleBarWidthUnits /= pow( 10.0, nDecPlaces );
scaleBarWidthUnits = ( int )( scaleBarWidthUnits + 0.5 );
scaleBarWidthUnits *= pow( 10.0, nDecPlaces );
}
initialScaleBarWidth = scaleBarWidthUnits * minMMPixelRatio;
painter->setPen( QColor( 0, 0, 0 ) );
painter->drawLine( QPointF( 5, rect().height() - 5 ), QPointF( 5 + initialScaleBarWidth, rect().height() - 5 ) );
painter->drawLine( QPointF( 5, rect().height() - 5 ), QPointF( 5, rect().height() - 7 ) );
painter->drawLine( QPointF( 5 + initialScaleBarWidth, rect().height() - 5 ), QPointF( 5 + initialScaleBarWidth, rect().height() - 7 ) );
QFont scaleBarFont;
scaleBarFont.setPointSize( 9 );
if ( mConvertScaleToMapUnits )
{
QgsComposerUtils::drawText( painter, QPointF( 5, rect().height() - 4 + QgsComposerUtils::fontAscentMM( scaleBarFont ) ), QStringLiteral( "%1 map units" ).arg( scaleBarWidthUnits ), QFont() );
}
else
{
QgsComposerUtils::drawText( painter, QPointF( 5, rect().height() - 4 + QgsComposerUtils::fontAscentMM( scaleBarFont ) ), QStringLiteral( "%1 pixels" ).arg( scaleBarWidthUnits ), QFont() );
}
drawFrame( painter );
if ( isSelected() )
{
drawSelectionBoxes( painter );
}
}
