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qgssensorthingssubseteditor.cpp
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qgssensorthingssubseteditor.cpp
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/***************************************************************************
qgssensorthingssubseteditor.cpp
--------------------------------------
Date : February 2024
Copyright : (C) 2024 by 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 "qgssensorthingssubseteditor.h"
#include "qgsvectorlayer.h"
#include "qgscodeeditor.h"
#include "qgsfieldproxymodel.h"
#include "qgsfieldmodel.h"
#include <QHBoxLayout>
#include <QLabel>
#include <QStandardItemModel>
#include <QPushButton>
///@cond PRIVATE
QgsSensorThingsSubsetEditor::QgsSensorThingsSubsetEditor( QgsVectorLayer *layer, const QgsFields &fields, QWidget *parent, Qt::WindowFlags fl )
: QgsSubsetStringEditorInterface( parent, fl )
, mLayer( layer )
, mFields( ( layer && fields.isEmpty() ) ? layer->fields() : fields )
{
setupUi( this );
mSubsetEditor = new QgsCodeEditor();
mSubsetEditor->setWrapMode( QsciScintilla::WrapWord );
QVBoxLayout *vl = new QVBoxLayout();
vl->addWidget( mSubsetEditor );
mEditorGroupBox->setLayout( vl );
mModelFields = new QgsFieldProxyModel();
mModelFields->setFilters( QgsFieldProxyModel::Filter::AllTypes | QgsFieldProxyModel::Filter::OriginProvider );
mModelFields->sourceFieldModel()->setFields( mFields );
lstFields->setModel( mModelFields );
lstFields->setViewMode( QListView::ListMode );
lstFields->setUniformItemSizes( true );
lstFields->setAlternatingRowColors( true );
lstFields->setSelectionBehavior( QAbstractItemView::SelectRows );
QFont boldFont = font();
boldFont.setBold( true );
mLabelComparisons->setFont( boldFont );
mLabelLogical->setFont( boldFont );
mLabelArithmetic->setFont( boldFont );
mButtonEq->setToolTip( tr( "Equal" ) );
mButtonEq->setProperty( "expression", " eq " );
mButtonNe->setToolTip( tr( "Not equal" ) );
mButtonNe->setProperty( "expression", " ne " );
mButtonGt->setToolTip( tr( "Greater than" ) );
mButtonGt->setProperty( "expression", " gt " );
mButtonGe->setToolTip( tr( "Greater than or equal" ) );
mButtonGe->setProperty( "expression", " ge " );
mButtonLt->setToolTip( tr( "Less than" ) );
mButtonLt->setProperty( "expression", " lt " );
mButtonLe->setToolTip( tr( "Less than or equal" ) );
mButtonLe->setProperty( "expression", " le " );
mButtonAnd->setToolTip( tr( "Logical and" ) );
mButtonAnd->setProperty( "expression", " and " );
mButtonOr->setToolTip( tr( "Logical or" ) );
mButtonOr->setProperty( "expression", " or " );
mButtonNot->setToolTip( tr( "Logical negation" ) );
mButtonNot->setProperty( "expression", " not " );
mButtonAdd->setToolTip( tr( "Addition" ) );
mButtonAdd->setProperty( "expression", " add " );
mButtonSub->setToolTip( tr( "Subtraction" ) );
mButtonSub->setProperty( "expression", " sub " );
mButtonMul->setToolTip( tr( "Multiplication" ) );
mButtonMul->setProperty( "expression", " mul " );
mButtonDiv->setToolTip( tr( "Division" ) );
mButtonDiv->setProperty( "expression", " div " );
mButtonMod->setToolTip( tr( "Modulo" ) );
mButtonMod->setProperty( "expression", " mod " );
mButtonNow->setToolTip( tr( "Current datetime" ) );
mButtonNow->setProperty( "expression", " now() " );
if ( mLayer )
lblDataUri->setText( tr( "Set filter on %1" ).arg( mLayer->name() ) );
else
lblDataUri->setText( tr( "Set filter for layer" ) );
connect( mButtonBox->button( QDialogButtonBox::Reset ), &QPushButton::clicked, this, &QgsSensorThingsSubsetEditor::reset );
connect( mButtonBox, &QDialogButtonBox::accepted, this, &QgsSensorThingsSubsetEditor::accept );
connect( mButtonBox, &QDialogButtonBox::rejected, this, &QgsSensorThingsSubsetEditor::reject );
connect( lstFields, &QListView::doubleClicked, this, &QgsSensorThingsSubsetEditor::lstFieldsDoubleClicked );
for ( QPushButton *button :
{
mButtonEq,
mButtonNe,
mButtonGt,
mButtonGe,
mButtonLt,
mButtonLe,
mButtonAnd,
mButtonOr,
mButtonNot,
mButtonAdd,
mButtonSub,
mButtonMul,
mButtonDiv,
mButtonMod,
mButtonNow
} )
{
connect( button, &QPushButton::clicked, this, [this, button]
{
mSubsetEditor->insertText( button->property( "expression" ).toString() );
mSubsetEditor->setFocus();
} );
}
}
QString QgsSensorThingsSubsetEditor::subsetString() const
{
return mSubsetEditor->text();
}
void QgsSensorThingsSubsetEditor::setSubsetString( const QString &subsetString )
{
mSubsetEditor->setText( subsetString );
}
void QgsSensorThingsSubsetEditor::accept()
{
if ( mLayer )
{
mLayer->setSubsetString( subsetString() );
}
QDialog::accept();
}
void QgsSensorThingsSubsetEditor::reset()
{
mSubsetEditor->clear();
}
void QgsSensorThingsSubsetEditor::lstFieldsDoubleClicked( const QModelIndex &index )
{
mSubsetEditor->insertText( mModelFields->data( index, static_cast< int >( QgsFieldModel::CustomRole::FieldName ) ).toString() );
mSubsetEditor->setFocus();
}
///@endcond