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qgsattributeformlegacyinterface.cpp
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qgsattributeformlegacyinterface.cpp
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/***************************************************************************
qgsattributeformlegacyinterface.cpp
--------------------------------------
Date : 13.5.2014
Copyright : (C) 2014 Matthias Kuhn
Email : matthias dot kuhn at gmx dot ch
***************************************************************************
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
***************************************************************************/
#include "qgsattributeformlegacyinterface.h"
#include "qgspythonrunner.h"
#include "qgsattributeform.h"
#include <QString>
#include <QDateTime>
QgsAttributeFormLegacyInterface::QgsAttributeFormLegacyInterface( const QString& function, const QString& pyFormName, QgsAttributeForm* form )
: QgsAttributeFormInterface( form )
, mPyFunctionName( function )
, mPyFormVarName( pyFormName )
{
mPyLayerVarName = QString( "_qgis_layer_%1" ).arg( form->layer()->id() );
QString initLayer = QString( "%1 = sip.wrapinstance( %2, qgis.core.QgsVectorLayer )" )
.arg( mPyLayerVarName )
.arg(( unsigned long ) form->layer() );
QgsPythonRunner::run( initLayer );
}
QgsAttributeFormLegacyInterface::~QgsAttributeFormLegacyInterface()
{
QString delLayer = QString( "del %1" ).arg( mPyLayerVarName );
QgsPythonRunner::run( delLayer );
}
void QgsAttributeFormLegacyInterface::featureChanged()
{
QDialogButtonBox* buttonBox = form()->findChild<QDialogButtonBox*>();
if ( buttonBox )
{
// If the init function did not call disconnect, we do it here before reconnecting
// If it did call disconnect, then the call will just do nothing
QObject::disconnect( buttonBox, SIGNAL( accepted() ), form(), SLOT( accept() ) );
QObject::connect( buttonBox, SIGNAL( accepted() ), form(), SLOT( accept() ) );
}
// Generate the unique ID of this feature. We used to use feature ID but some providers
// return a ID that is an invalid python variable when we have new unsaved features.
QDateTime dt = QDateTime::currentDateTime();
QString pyFeatureVarName = QString( "_qgis_feature_%1" ).arg( dt.toString( "yyyyMMddhhmmsszzz" ) );
QString initFeature = QString( "%1 = sip.wrapinstance( %2, qgis.core.QgsFeature )" )
.arg( pyFeatureVarName )
.arg(( unsigned long ) & form()->feature() );
QgsPythonRunner::run( initFeature );
QString expr = QString( "%1( %2, %3, %4)" )
.arg( mPyFunctionName )
.arg( mPyFormVarName )
.arg( mPyLayerVarName )
.arg( pyFeatureVarName );
QgsPythonRunner::run( expr );
QString delFeature = QString( "del %1" ).arg( pyFeatureVarName );
QgsPythonRunner::run( delFeature );
}