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qgsattributetabledelegate.cpp
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qgsattributetabledelegate.cpp
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/***************************************************************************
QgsAttributeTableDelegate.cpp
--------------------------------------
Date : Feb 2009
Copyright : (C) 2009 Vita Cizek
Email : weetya (at) gmail.com
***************************************************************************
* *
* 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 <QItemDelegate>
#include <QLineEdit>
#include <QComboBox>
#include <QPainter>
#include <QToolButton>
#include "qgsattributeeditor.h"
#include "qgsattributetabledelegate.h"
#include "qgsattributetablefiltermodel.h"
#include "qgsattributetablemodel.h"
#include "qgsattributetableview.h"
#include "qgseditorwidgetregistry.h"
#include "qgsfeatureselectionmodel.h"
#include "qgslogger.h"
#include "qgsvectordataprovider.h"
#include "qgsactionmanager.h"
QgsVectorLayer* QgsAttributeTableDelegate::layer( const QAbstractItemModel *model )
{
const QgsAttributeTableModel *tm = qobject_cast<const QgsAttributeTableModel *>( model );
if ( tm )
return tm->layer();
const QgsAttributeTableFilterModel *fm = dynamic_cast<const QgsAttributeTableFilterModel *>( model );
if ( fm )
return fm->layer();
return nullptr;
}
const QgsAttributeTableModel* QgsAttributeTableDelegate::masterModel( const QAbstractItemModel* model )
{
const QgsAttributeTableModel *tm = qobject_cast<const QgsAttributeTableModel *>( model );
if ( tm )
return tm;
const QgsAttributeTableFilterModel *fm = dynamic_cast<const QgsAttributeTableFilterModel *>( model );
if ( fm )
return fm->masterModel();
return nullptr;
}
QWidget* QgsAttributeTableDelegate::createEditor( QWidget *parent, const QStyleOptionViewItem &option, const QModelIndex &index ) const
{
Q_UNUSED( option );
QgsVectorLayer *vl = layer( index.model() );
if ( !vl )
return nullptr;
int fieldIdx = index.model()->data( index, QgsAttributeTableModel::FieldIndexRole ).toInt();
QString widgetType = vl->editFormConfig()->widgetType( fieldIdx );
QgsEditorWidgetConfig cfg = vl->editFormConfig()->widgetConfig( fieldIdx );
QgsAttributeEditorContext context( masterModel( index.model() )->editorContext(), QgsAttributeEditorContext::Popup );
QgsEditorWidgetWrapper* eww = QgsEditorWidgetRegistry::instance()->create( widgetType, vl, fieldIdx, cfg, nullptr, parent, context );
QWidget* w = eww->widget();
w->setAutoFillBackground( true );
eww->setEnabled( !vl->editFormConfig()->readOnly( fieldIdx ) );
return w;
}
void QgsAttributeTableDelegate::setModelData( QWidget *editor, QAbstractItemModel *model, const QModelIndex &index ) const
{
QgsVectorLayer *vl = layer( model );
if ( !vl )
return;
int fieldIdx = model->data( index, QgsAttributeTableModel::FieldIndexRole ).toInt();
QgsFeatureId fid = model->data( index, QgsAttributeTableModel::FeatureIdRole ).toLongLong();
QVariant oldValue = model->data( index, Qt::EditRole );
QVariant newValue;
QgsEditorWidgetWrapper* eww = QgsEditorWidgetWrapper::fromWidget( editor );
if ( !eww )
return;
newValue = eww->value();
if (( oldValue != newValue && newValue.isValid() ) || oldValue.isNull() != newValue.isNull() )
{
// This fixes https://issues.qgis.org/issues/16492
QgsFeatureRequest request( fid );
request.setFlags( QgsFeatureRequest::NoGeometry );
request.setSubsetOfAttributes( QgsAttributeList( ) );
QgsFeature feature;
vl->getFeatures( request ).nextFeature( feature );
if ( feature.isValid( ) )
{
vl->beginEditCommand( tr( "Attribute changed" ) );
vl->changeAttributeValue( fid, fieldIdx, newValue, oldValue );
vl->endEditCommand();
}
}
}
void QgsAttributeTableDelegate::setEditorData( QWidget *editor, const QModelIndex &index ) const
{
QgsEditorWidgetWrapper* eww = QgsEditorWidgetWrapper::fromWidget( editor );
if ( !eww )
return;
eww->setValue( index.model()->data( index, Qt::EditRole ) );
}
void QgsAttributeTableDelegate::setFeatureSelectionModel( QgsFeatureSelectionModel *featureSelectionModel )
{
mFeatureSelectionModel = featureSelectionModel;
}
void QgsAttributeTableDelegate::paint( QPainter* painter, const QStyleOptionViewItem& option, const QModelIndex& index ) const
{
QgsAttributeTableFilterModel::ColumnType columnType = static_cast<QgsAttributeTableFilterModel::ColumnType>( index.model()->data( index, QgsAttributeTableFilterModel::TypeRole ).toInt() );
if ( columnType == QgsAttributeTableFilterModel::ColumnTypeActionButton )
{
emit actionColumnItemPainted( index );
}
else
{
QgsFeatureId fid = index.model()->data( index, QgsAttributeTableModel::FeatureIdRole ).toLongLong();
QStyleOptionViewItem myOpt = option;
if ( index.model()->data( index, Qt::EditRole ).isNull() )
{
myOpt.font.setItalic( true );
myOpt.palette.setColor( QPalette::Text, QColor( "gray" ) );
}
if ( mFeatureSelectionModel && mFeatureSelectionModel->isSelected( fid ) )
myOpt.state |= QStyle::State_Selected;
QItemDelegate::paint( painter, myOpt, index );
if ( option.state & QStyle::State_HasFocus )
{
QRect r = option.rect.adjusted( 1, 1, -1, -1 );
QPen p( QBrush( QColor( 0, 255, 127 ) ), 2 );
painter->save();
painter->setPen( p );
painter->drawRect( r );
painter->restore();
}
}
}