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qgsselectbyformdialog.cpp
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qgsselectbyformdialog.cpp
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/***************************************************************************
qgsselectbyformdialog.cpp
------------------------
Date : June 2016
Copyright : (C) 2016 nyall Dawson
Email : nyall dot dawson at gmail dot 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 <QLayout>
#include "qgsselectbyformdialog.h"
#include "qgsattributeform.h"
#include "qgsmapcanvas.h"
#include "qgssettings.h"
#include "qgsmessagebar.h"
#include "qgsexpressioncontextutils.h"
#include "qgsgui.h"
#include "qgsmapcanvasutils.h"
QgsSelectByFormDialog::QgsSelectByFormDialog( QgsVectorLayer *layer, const QgsAttributeEditorContext &context, QWidget *parent, Qt::WindowFlags fl )
: QDialog( parent, fl )
, mLayer( layer )
{
QgsAttributeEditorContext dlgContext = context;
dlgContext.setFormMode( QgsAttributeEditorContext::StandaloneDialog );
dlgContext.setAllowCustomUi( false );
mForm = new QgsAttributeForm( layer, QgsFeature(), dlgContext, this );
mForm->setMode( QgsAttributeEditorContext::SearchMode );
QVBoxLayout *vLayout = new QVBoxLayout();
vLayout->setContentsMargins( 0, 0, 0, 0 );
setLayout( vLayout );
vLayout->addWidget( mForm );
connect( mForm, &QgsAttributeForm::closed, this, &QWidget::close );
QgsGui::enableAutoGeometryRestore( this );
setWindowTitle( tr( "%1 — Select Features" ).arg( layer->name() ) );
connect( mLayer, &QgsVectorLayer::willBeDeleted, this, &QgsSelectByFormDialog::close );
}
void QgsSelectByFormDialog::setMessageBar( QgsMessageBar *messageBar )
{
mMessageBar = messageBar;
mForm->setMessageBar( messageBar );
}
void QgsSelectByFormDialog::setMapCanvas( QgsMapCanvas *canvas )
{
mMapCanvas = canvas;
connect( mForm, &QgsAttributeForm::zoomToFeatures, this, &QgsSelectByFormDialog::zoomToFeatures );
connect( mForm, &QgsAttributeForm::flashFeatures, this, &QgsSelectByFormDialog::flashFeatures );
}
void QgsSelectByFormDialog::zoomToFeatures( const QString &filter )
{
const long featureCount = QgsMapCanvasUtils::zoomToMatchingFeatures( mMapCanvas, mLayer, filter );
QgsSettings settings;
int timeout = settings.value( QStringLiteral( "qgis/messageTimeout" ), 5 ).toInt();
if ( featureCount > 0 )
{
if ( mMessageBar )
{
mMessageBar->pushMessage( QString(),
tr( "Zoomed to %n matching feature(s)", "number of matching features", featureCount ),
Qgis::Info,
timeout );
}
}
else if ( mMessageBar )
{
mMessageBar->pushMessage( QString(),
tr( "No matching features found" ),
Qgis::Info,
timeout );
}
}
void QgsSelectByFormDialog::flashFeatures( const QString &filter )
{
const long featureCount = QgsMapCanvasUtils::flashMatchingFeatures( mMapCanvas, mLayer, filter );
QgsSettings settings;
int timeout = settings.value( QStringLiteral( "qgis/messageTimeout" ), 5 ).toInt();
if ( featureCount == 0 && mMessageBar )
{
mMessageBar->pushMessage( QString(),
tr( "No matching features found" ),
Qgis::Info,
timeout );
}
}