QgsExtentGroupBox::QgsExtentGroupBox( QWidget* parent )
: QgsCollapsibleGroupBox( parent )
, mTitleBase( tr( "Extent" ) )
, mExtentState( OriginalExtent )
{
setupUi( this );
mXMinLineEdit->setValidator( new QDoubleValidator( this ) );
mXMaxLineEdit->setValidator( new QDoubleValidator( this ) );
mYMinLineEdit->setValidator( new QDoubleValidator( this ) );
mYMaxLineEdit->setValidator( new QDoubleValidator( this ) );
connect( mCurrentExtentButton, SIGNAL( clicked() ), this, SLOT( setOutputExtentFromCurrent() ) );
connect( mOriginalExtentButton, SIGNAL( clicked() ), this, SLOT( setOutputExtentFromOriginal() ) );
connect( this, SIGNAL( clicked( bool ) ), this, SLOT( groupBoxClicked() ) );
}
void QgsExtentGroupBox::setOutputCrs( const QgsCoordinateReferenceSystem &outputCrs )
{
if ( mOutputCrs != outputCrs )
{
switch ( mExtentState )
{
case CurrentExtent:
mOutputCrs = outputCrs;
setOutputExtentFromCurrent();
break;
case OriginalExtent:
mOutputCrs = outputCrs;
setOutputExtentFromOriginal();
break;
case ProjectLayerExtent:
mOutputCrs = outputCrs;
setOutputExtentFromLayer( mExtentLayer.data() );
break;
case DrawOnCanvas:
mOutputCrs = outputCrs;
extentDrawn( outputExtent() );
break;
case UserExtent:
try
{
QgsCoordinateTransform ct( mOutputCrs, outputCrs );
QgsRectangle extent = ct.transformBoundingBox( outputExtent() );
mOutputCrs = outputCrs;
setOutputExtentFromUser( extent, outputCrs );
}
catch ( QgsCsException & )
{
// can't reproject
mOutputCrs = outputCrs;
}
break;
}
}
}