void WinBarDelegate::paint(QPainter * painter, const QStyleOptionViewItem & option, const QModelIndex & index) const
{
if(index.isValid() && index.data(ChannelData).isValid()){
painter->save();
painter->setRenderHint(QPainter::Antialiasing);
/**************配置*****************/
QRectF rect(option.rect.marginsAdded(margins));
if(option.state & QStyle::State_Sunken && option.state & QStyle::State_HasFocus){
rect.moveTo(rect.x() + 1, rect.y() + 1);
}
QRectF topRect(rect);
topRect.setHeight(rect.height()/6);
QFont font = option.font;
font.setFamily(font.defaultFamily());
/*****************色卡*****************/
QRectF colorRect(topRect);
colorRect.setHeight(topRect.height()/5 * 3);
painter->setPen(QColor(0,0,0,0));
painter->setBrush(QColor(index.data(ChannelColor).value<QColor>()));
painter->drawRoundedRect(colorRect,5,5);
/****************头部背景色**************/
QRectF headRect(topRect);
headRect.setTop(colorRect.center().y());
painter->setBrush(QBrush(QColor(240,240,240)));
painter->drawRect(headRect);
/******************底部背景色*******************/
QRectF bottomRect(rect);
bottomRect.setTop(topRect.bottom() + 2);
painter->setPen(QColor(0,0,0,0));
painter->setBrush(QBrush(QColor(240,240,240)));
painter->drawRect(bottomRect);
/******************色柱********************/
QRectF barRect(bottomRect);
quint8 base = index.data(ChannelBarBase).toUInt();
qreal mesureVal = index.data(ChannelData).toDouble();
qreal rangeUpper = index.data(ChannelDispUpper).toDouble();
qreal rangeDowner = index.data(ChannelDispDowner).toDouble();
if(mesureVal >= 0){
barRect.setTop(barRect.top() + barRect.height()/2 * (1 - mesureVal/rangeUpper));
}else if(mesureVal < 0){
barRect.setTop(barRect.top() + barRect.height()/2 * (1 + mesureVal/rangeDowner));
}
if(base == 1){
barRect.setBottom(bottomRect.center().y());
}else if(base == 2){
barRect.setBottom(bottomRect.top());
}
painter->setPen(QColor(0,0,0,0));
painter->setBrush(QColor(index.data(ChannelColor).value<QColor>()));
painter->drawRect(barRect);
/****************光泽效果*****************/
QLinearGradient skinColor(rect.topLeft(),rect.topRight());
skinColor.setColorAt(0,QColor(255,255,255,0));
skinColor.setColorAt(0.09,QColor(255,255,255,0));
skinColor.setColorAt(0.1,QColor(255,255,255,200));
skinColor.setColorAt(0.13,QColor(255,255,255,200));
skinColor.setColorAt(0.14,QColor(255,255,255,80));
skinColor.setColorAt(0.50,QColor(0,0,0,20));
skinColor.setColorAt(0.75,QColor(0,0,0,10));
skinColor.setColorAt(0.76,QColor(255,255,255,30));
skinColor.setColorAt(0.95,QColor(255,255,255,150));
skinColor.setColorAt(0.96,QColor(255,255,255,0));
skinColor.setColorAt(1,QColor(255,255,255,0));
painter->setPen(QPen(QColor(200,230,255,0)));
painter->setBrush(skinColor);
painter->drawRect(rect);
/*****************刻度*********************/
qreal baseX = bottomRect.right();
qreal baseY = bottomRect.top();
qreal len = bottomRect.width()/8;
quint8 count = index.data(ChannelBarDiv).toUInt();
qreal span = bottomRect.height()/count;
painter->setPen(Qt::black);
painter->setBrush(QBrush(QColor(0,0,0,0)));
for(quint8 i=1; i<count; ++i){
painter->drawLine(baseX - len, baseY + i*span, baseX, baseY + i*span);
}
/**************量程*****************/
QRectF valRect(bottomRect);
valRect.setHeight(span);
font.setPixelSize(valRect.height()/2);
painter->setFont(font);
painter->setPen(QPen(Qt::black,1));
painter->drawText(valRect,QString::number(rangeUpper,'f',4));
valRect.moveBottom(bottomRect.bottom());
painter->drawText(valRect,Qt::AlignBottom,QString::number(rangeDowner,'f',4));
/**************测量值*********************/
valRect.moveBottom(barRect.top());
if(valRect.top() < baseY + span){
valRect.moveTop(baseY + span);
}else if(valRect.bottom() > bottomRect.bottom() - 2 * span){
valRect.moveBottom(bottomRect.bottom() - 2 * span);
}
painter->drawText(valRect,Qt::AlignBottom|Qt::AlignHCenter,QString::number(mesureVal,'f',4));
/*******************单位***********************/
valRect.moveTop(valRect.bottom());
valRect.setRight(baseX - len);
//painter->setPen(QColor(100,100,100));
painter->drawText(valRect,Qt::AlignRight|Qt::AlignTop,index.data(ChannelUnit).toString());
/****************标记********************/
font.setPixelSize(headRect.height()/2);
painter->setFont(font);
painter->setPen(QColor(100,100,100));
painter->drawText(headRect,Qt::AlignCenter,index.data(ChannelTag).toString());
/*****************擦除头尾连接**********************/
painter->setBrush(QBrush(QColor(0,0,0,0)));
painter->setPen(QPen(Qt::black,1));
painter->drawRect(bottomRect);
painter->eraseRect(QRectF(topRect.bottomLeft(), bottomRect.topRight()));
/*********************按压效果*************************/
if(option.state & QStyle::State_Sunken && option.state & QStyle::State_HasFocus){
painter->setPen(QPen(QColor(0,0,255,100),3));
painter->setBrush(QBrush(QColor(180,180,180,50)));
painter->drawRoundedRect(rect,6,6);
}
painter->restore();
}
}
// -------------------------------------------------------------------------
void ctkQImageView::update( bool zoomChanged,
bool sizeChanged )
{
Q_D( ctkQImageView );
if( d->SliceNumber >= 0 && d->SliceNumber < d->ImageList.size() )
{
const QImage * img = & ( d->ImageList[ d->SliceNumber ] );
if( zoomChanged || sizeChanged )
{
if( this->width() > 0 && this->height() > 0
&& d->TmpXMax > d->TmpXMin && d->TmpYMax > d->TmpYMin)
{
int tmpXRange = d->TmpXMax - d->TmpXMin;
int tmpYRange = d->TmpYMax - d->TmpYMin;
double tmpAspectRatio = static_cast<double>(tmpYRange) / tmpXRange;
double screenAspectRatio = static_cast<double>(this->height())
/ this->width();
if( screenAspectRatio > tmpAspectRatio )
{
int extraTmpYAbove = d->TmpYMin;
int extraTmpYBelow = img->height() - d->TmpYMax;
int extraTmpYNeeded = tmpXRange * screenAspectRatio
- tmpYRange;
int minExtra = extraTmpYAbove;
if( extraTmpYBelow < minExtra )
{
minExtra = extraTmpYBelow;
}
if(2 * minExtra >= extraTmpYNeeded)
{
int minNeeded = extraTmpYNeeded / 2.0;
int maxNeeded = extraTmpYNeeded - minNeeded;
d->TmpYMin -= minNeeded;
d->TmpYMax += maxNeeded;
}
else if(extraTmpYAbove + extraTmpYBelow >= extraTmpYNeeded)
{
if(extraTmpYAbove < extraTmpYBelow)
{
d->TmpYMin = 0;
d->TmpYMax += extraTmpYNeeded - extraTmpYAbove;
}
else
{
d->TmpYMax = img->height();
d->TmpYMin -= extraTmpYNeeded - extraTmpYBelow;
}
}
else
{
d->TmpYMin = 0;
d->TmpYMax = img->height();
}
d->TmpImage = QPixmap( this->width(),
static_cast<unsigned int>(
static_cast<double>(d->TmpYMax - d->TmpYMin)
/ (d->TmpXMax - d->TmpXMin)
* this->width() + 0.5 ) );
}
else if(screenAspectRatio < tmpAspectRatio)
{
int extraTmpXLeft = d->TmpXMin;
int extraTmpXRight = img->width() - d->TmpXMax;
int extraTmpXNeeded = static_cast<double>(tmpYRange)
/ screenAspectRatio - tmpXRange;
int minExtra = extraTmpXLeft;
if( extraTmpXRight < minExtra )
{
minExtra = extraTmpXRight;
}
if(2 * minExtra >= extraTmpXNeeded)
{
int minNeeded = extraTmpXNeeded / 2.0;
int maxNeeded = extraTmpXNeeded - minNeeded;
d->TmpXMin -= minNeeded;
d->TmpXMax += maxNeeded;
}
else if(extraTmpXLeft + extraTmpXRight >= extraTmpXNeeded)
{
if(extraTmpXLeft < extraTmpXRight)
{
d->TmpXMin = 0;
d->TmpXMax += extraTmpXNeeded - extraTmpXLeft;
}
else
{
d->TmpXMax = img->width();
d->TmpXMin -= extraTmpXNeeded - extraTmpXRight;
}
}
else
{
d->TmpXMin = 0;
d->TmpXMax = img->width();
}
d->TmpImage = QPixmap( static_cast<unsigned int>( this->height()
/ ( static_cast<double>(d->TmpYMax - d->TmpYMin)
/ (d->TmpXMax - d->TmpXMin) )
+ 0.5 ), this->height() );
}
else
{
d->TmpImage = QPixmap( this->width(), this->height() );
}
}
}
if( d->TmpImage.width() > 0 && d->TmpImage.height() > 0)
{
QRectF target( 0, 0, d->TmpImage.width(), d->TmpImage.height() );
double sourceX = d->TmpXMin;
double sourceY = d->TmpYMin;
double sourceW = d->TmpXMax - d->TmpXMin;
double sourceH = d->TmpYMax - d->TmpYMin;
QPainter painter( &(d->TmpImage) );
QImage tmpI = *img;
if( d->InvertImage )
{
tmpI.invertPixels();
}
if( d->FlipXAxis || d->FlipYAxis )
{
tmpI = tmpI.mirrored( d->FlipXAxis, d->FlipYAxis );
if( d->FlipXAxis )
{
sourceX = tmpI.width() - (d->TmpXMax - d->TmpXMin) - d->TmpXMin;
}
if( d->FlipYAxis )
{
sourceY = tmpI.height() - (d->TmpYMax - d->TmpYMin) - d->TmpYMin;
}
}
QRectF source( sourceX, sourceY, sourceW, sourceH );
painter.drawPixmap( target, QPixmap::fromImage( tmpI ), source );
//if( ! sizeChanged )
{
int maxNumCharsPerLine = 50;
int fontPointSize = 12;
if( fontPointSize * maxNumCharsPerLine > this->width() )
{
fontPointSize = this->width() / maxNumCharsPerLine;
}
if( fontPointSize > 7 )
{
QString fontFamily( "Helvetica" );
QFont textFont( fontFamily, fontPointSize );
painter.setFont( textFont );
QColor textColor;
textColor.setNamedColor( "lime" );
textColor.setAlpha( 128 );
painter.setPen( textColor );
int textFlags = Qt::AlignLeft | Qt::TextDontClip;
QRectF pointRect( 0, 0, 1, 1 );
QRectF spaceBound = painter.boundingRect( pointRect, textFlags,
"X" );
if( img->isGrayscale() )
{
QString intString = "Intensity Range = ";
intString.append( QString::number( d->IntensityMin,
'f', 3 ) );
intString.append( " - " );
intString.append( QString::number( d->IntensityMax,
'f', 3 ) );
QRectF intBound = painter.boundingRect( pointRect, textFlags,
intString );
QRectF intRect(
spaceBound.width()/2,
spaceBound.height()/8,
intBound.width(), intBound.height() );
painter.drawText( intRect, textFlags, intString,
&intBound );
QString wlString = "W / L = ";
wlString.append( QString::number( this->intensityWindow(),
'f', 3 ) );
wlString.append( " / " );
wlString.append( QString::number( this->intensityLevel(),
'f', 3 ) );
QRectF wlBound = painter.boundingRect( pointRect, textFlags,
wlString );
QRectF wlRect(
spaceBound.width()/2,
intRect.y() + intRect.height() + spaceBound.height()/8,
wlBound.width(), wlBound.height() );
painter.drawText( wlRect, textFlags, wlString,
&wlBound );
}
QString spacingString = "Spacing = ";
spacingString.append( QString::number( this->xSpacing(),
'f', 3 ) );
spacingString.append( ", " );
spacingString.append( QString::number( this->ySpacing(),
'f', 3 ) );
spacingString.append( ", " );
spacingString.append( QString::number( this->sliceThickness(),
'f', 3 ) );
QRectF spacingBound = painter.boundingRect( pointRect, textFlags,
spacingString );
QRectF spacingRect(
this->width() - spacingBound.width() - spaceBound.width()/2,
this->height() - spacingBound.height() - spaceBound.height()/8,
spacingBound.width(), spacingBound.height() );
painter.drawText( spacingRect, textFlags, spacingString,
&spacingBound );
QString dimString = "Size = ";
dimString.append(
QString::number( d->ImageList[ d->SliceNumber ].width() ) );
dimString.append( ", " );
dimString.append(
QString::number( d->ImageList[ d->SliceNumber ].height() ) );
dimString.append( ", " );
dimString.append(
QString::number( d->ImageList.size() ) );
QRectF dimBound = painter.boundingRect( pointRect, textFlags,
dimString );
QRectF dimRect(
this->width() - dimBound.width() - spaceBound.width()/2,
spacingBound.y() - dimBound.height() - spaceBound.height()/8,
dimBound.width(), dimBound.height() );
painter.drawText( dimRect, textFlags, dimString, &dimBound );
QString rasString = "RAS = ";
rasString.append( QString::number(
this->xPosition() * this->xSpacing(), 'f', 3 ) );
rasString.append( ", " );
rasString.append( QString::number(
this->yPosition() * this->ySpacing(), 'f', 3 ) );
rasString.append( ", " );
rasString.append( QString::number(
this->slicePosition() * this->sliceSpacing(), 'f', 3 ) );
QRectF rasBound = painter.boundingRect( pointRect, textFlags,
rasString );
QRectF rasRect(
spaceBound.width()/2,
this->height() - rasBound.height() - spaceBound.height()/8,
rasBound.width(), rasBound.height() );
painter.drawText( rasRect, textFlags, rasString,
&rasBound );
QString ijkString = "IJK = ";
ijkString.append( QString::number( this->xPosition() ) );
ijkString.append( ", " );
ijkString.append( QString::number( this->yPosition() ) );
ijkString.append( ", " );
ijkString.append( QString::number( this->slicePosition() ) );
QRectF ijkBound = painter.boundingRect( pointRect, textFlags,
ijkString );
QRectF ijkRect(
spaceBound.width()/2,
rasBound.y() - ijkBound.height() - spaceBound.height()/8,
ijkBound.width(), ijkBound.height() );
painter.drawText( ijkRect, textFlags, ijkString, &ijkBound );
QString valString = "Value = ";
valString.append( QString::number( this->positionValue(),
'f', 3 ) );
QRectF valBound = painter.boundingRect( pointRect, textFlags,
valString );
QRectF valRect(
spaceBound.width()/2,
ijkBound.y() - valBound.height() - spaceBound.height()/8,
valBound.width(), valBound.height() );
painter.drawText( valRect, textFlags, valString, &valBound );
}
QColor lineColor;
lineColor.setNamedColor( "red" );
lineColor.setAlpha( 128 );
painter.setPen( lineColor );
double x = ( this->xPosition() - d->TmpXMin )
/ (d->TmpXMax - d->TmpXMin) * this->width();
double y = ( this->yPosition() - d->TmpYMin )
/ (d->TmpYMax - d->TmpYMin) * this->height();
if( d->FlipXAxis )
{
x = this->width() - x;
}
if( d->FlipYAxis )
{
y = this->height() - y;
}
QLine lineX( x, 0, x, this->height() );
painter.drawLine( lineX );
QLine lineY( 0, y, this->width(), y );
painter.drawLine( lineY );
}
}
d->Window->setPixmap( d->TmpImage );
}
else
{
d->Window->setText( "No Image Loaded." );
}
}