void QgsComposerPicture::paint( QPainter* painter, const QStyleOptionGraphicsItem* itemStyle, QWidget* pWidget )
{
Q_UNUSED( itemStyle );
Q_UNUSED( pWidget );
if ( !painter )
{
return;
}
if ( !shouldDrawItem() )
{
return;
}
drawBackground( painter );
//int newDpi = ( painter->device()->logicalDpiX() + painter->device()->logicalDpiY() ) / 2;
//picture resizing
if ( mMode != Unknown )
{
double boundRectWidthMM;
double boundRectHeightMM;
QRect imageRect;
if ( mResizeMode == QgsComposerPicture::Zoom || mResizeMode == QgsComposerPicture::ZoomResizeFrame )
{
boundRectWidthMM = mPictureWidth;
boundRectHeightMM = mPictureHeight;
imageRect = QRect( 0, 0, mImage.width(), mImage.height() );
}
else if ( mResizeMode == QgsComposerPicture::Stretch )
{
boundRectWidthMM = rect().width();
boundRectHeightMM = rect().height();
imageRect = QRect( 0, 0, mImage.width(), mImage.height() );
}
else if ( mResizeMode == QgsComposerPicture::Clip )
{
boundRectWidthMM = rect().width();
boundRectHeightMM = rect().height();
int imageRectWidthPixels = mImage.width();
int imageRectHeightPixels = mImage.height();
imageRect = clippedImageRect( boundRectWidthMM, boundRectHeightMM,
QSize( imageRectWidthPixels, imageRectHeightPixels ) );
}
else
{
boundRectWidthMM = rect().width();
boundRectHeightMM = rect().height();
imageRect = QRect( 0, 0, rect().width() * mComposition->printResolution() / 25.4,
rect().height() * mComposition->printResolution() / 25.4 );
}
painter->save();
//antialiasing on
painter->setRenderHint( QPainter::Antialiasing, true );
//zoom mode - calculate anchor point and rotation
if ( mResizeMode == Zoom )
{
//TODO - allow placement modes with rotation set. for now, setting a rotation
//always places picture in center of frame
if ( !qgsDoubleNear( mPictureRotation, 0.0 ) )
{
painter->translate( rect().width() / 2.0, rect().height() / 2.0 );
painter->rotate( mPictureRotation );
painter->translate( -boundRectWidthMM / 2.0, -boundRectHeightMM / 2.0 );
}
else
{
//shift painter to edge/middle of frame depending on placement
double diffX = rect().width() - boundRectWidthMM;
double diffY = rect().height() - boundRectHeightMM;
double dX = 0;
double dY = 0;
switch ( mPictureAnchor )
{
case UpperLeft:
case MiddleLeft:
case LowerLeft:
//nothing to do
break;
case UpperMiddle:
case Middle:
case LowerMiddle:
dX = diffX / 2.0;
break;
case UpperRight:
case MiddleRight:
case LowerRight:
dX = diffX;
break;
}
switch ( mPictureAnchor )
{
case UpperLeft:
case UpperMiddle:
case UpperRight:
//nothing to do
break;
case MiddleLeft:
case Middle:
case MiddleRight:
dY = diffY / 2.0;
break;
case LowerLeft:
case LowerMiddle:
case LowerRight:
dY = diffY;
break;
}
painter->translate( dX, dY );
}
}
else if ( mResizeMode == ZoomResizeFrame )
{
if ( !qgsDoubleNear( mPictureRotation, 0.0 ) )
{
painter->translate( rect().width() / 2.0, rect().height() / 2.0 );
painter->rotate( mPictureRotation );
painter->translate( -boundRectWidthMM / 2.0, -boundRectHeightMM / 2.0 );
}
}
if ( mMode == SVG )
{
mSVG.render( painter, QRectF( 0, 0, boundRectWidthMM, boundRectHeightMM ) );
}
else if ( mMode == RASTER )
{
painter->drawImage( QRectF( 0, 0, boundRectWidthMM, boundRectHeightMM ), mImage, imageRect );
}
painter->restore();
}
//frame and selection boxes
drawFrame( painter );
if ( isSelected() )
{
drawSelectionBoxes( painter );
}
}
void QgsLayoutItemPicture::draw( QgsRenderContext &context, const QStyleOptionGraphicsItem * )
{
QPainter *painter = context.painter();
painter->save();
// painter is scaled to dots, so scale back to layout units
painter->scale( context.scaleFactor(), context.scaleFactor() );
//picture resizing
if ( mMode != FormatUnknown )
{
double boundRectWidthMM;
double boundRectHeightMM;
QRect imageRect;
if ( mResizeMode == QgsLayoutItemPicture::Zoom || mResizeMode == QgsLayoutItemPicture::ZoomResizeFrame )
{
boundRectWidthMM = mPictureWidth;
boundRectHeightMM = mPictureHeight;
imageRect = QRect( 0, 0, mImage.width(), mImage.height() );
}
else if ( mResizeMode == QgsLayoutItemPicture::Stretch )
{
boundRectWidthMM = rect().width();
boundRectHeightMM = rect().height();
imageRect = QRect( 0, 0, mImage.width(), mImage.height() );
}
else if ( mResizeMode == QgsLayoutItemPicture::Clip )
{
boundRectWidthMM = rect().width();
boundRectHeightMM = rect().height();
int imageRectWidthPixels = mImage.width();
int imageRectHeightPixels = mImage.height();
imageRect = clippedImageRect( boundRectWidthMM, boundRectHeightMM,
QSize( imageRectWidthPixels, imageRectHeightPixels ) );
}
else
{
boundRectWidthMM = rect().width();
boundRectHeightMM = rect().height();
imageRect = QRect( 0, 0, mLayout->convertFromLayoutUnits( rect().width(), QgsUnitTypes::LayoutMillimeters ).length() * mLayout->context().dpi() / 25.4,
mLayout->convertFromLayoutUnits( rect().height(), QgsUnitTypes::LayoutMillimeters ).length() * mLayout->context().dpi() / 25.4 );
}
//zoom mode - calculate anchor point and rotation
if ( mResizeMode == Zoom )
{
//TODO - allow placement modes with rotation set. for now, setting a rotation
//always places picture in center of frame
if ( !qgsDoubleNear( mPictureRotation, 0.0 ) )
{
painter->translate( rect().width() / 2.0, rect().height() / 2.0 );
painter->rotate( mPictureRotation );
painter->translate( -boundRectWidthMM / 2.0, -boundRectHeightMM / 2.0 );
}
else
{
//shift painter to edge/middle of frame depending on placement
double diffX = rect().width() - boundRectWidthMM;
double diffY = rect().height() - boundRectHeightMM;
double dX = 0;
double dY = 0;
switch ( mPictureAnchor )
{
case UpperLeft:
case MiddleLeft:
case LowerLeft:
//nothing to do
break;
case UpperMiddle:
case Middle:
case LowerMiddle:
dX = diffX / 2.0;
break;
case UpperRight:
case MiddleRight:
case LowerRight:
dX = diffX;
break;
}
switch ( mPictureAnchor )
{
case UpperLeft:
case UpperMiddle:
case UpperRight:
//nothing to do
break;
case MiddleLeft:
case Middle:
case MiddleRight:
dY = diffY / 2.0;
break;
case LowerLeft:
case LowerMiddle:
case LowerRight:
dY = diffY;
break;
}
painter->translate( dX, dY );
}
}
else if ( mResizeMode == ZoomResizeFrame )
{
if ( !qgsDoubleNear( mPictureRotation, 0.0 ) )
{
painter->translate( rect().width() / 2.0, rect().height() / 2.0 );
painter->rotate( mPictureRotation );
painter->translate( -boundRectWidthMM / 2.0, -boundRectHeightMM / 2.0 );
}
}
if ( mMode == FormatSVG )
{
mSVG.render( painter, QRectF( 0, 0, boundRectWidthMM, boundRectHeightMM ) );
}
else if ( mMode == FormatRaster )
{
painter->drawImage( QRectF( 0, 0, boundRectWidthMM, boundRectHeightMM ), mImage, imageRect );
}
}
painter->restore();
}
