23#include "qgspointcloudexpression.h"
33QgsProcessingPointCloudExpressionLineEdit::QgsProcessingPointCloudExpressionLineEdit( QWidget *parent )
37 mLineEdit->setSizePolicy( QSizePolicy::Expanding, QSizePolicy::Minimum );
39 mButton =
new QToolButton();
40 mButton->setSizePolicy( QSizePolicy::Minimum, QSizePolicy::Minimum );
42 connect( mButton, &QAbstractButton::clicked,
this, &QgsProcessingPointCloudExpressionLineEdit::editExpression );
44 QHBoxLayout *layout =
new QHBoxLayout();
45 layout->setContentsMargins( 0, 0, 0, 0 );
46 layout->addWidget( mLineEdit );
47 layout->addWidget( mButton );
50 setSizePolicy( QSizePolicy::Expanding, QSizePolicy::Minimum );
51 setFocusProxy( mLineEdit );
52 connect( mLineEdit, &QLineEdit::textChanged,
this,
static_cast < void ( QgsProcessingPointCloudExpressionLineEdit::* )(
const QString & )
> ( &QgsProcessingPointCloudExpressionLineEdit::expressionEdited ) );
54 setExpression( expression() );
57QgsProcessingPointCloudExpressionLineEdit::~QgsProcessingPointCloudExpressionLineEdit() =
default;
69QString QgsProcessingPointCloudExpressionLineEdit::expression()
const
72 return mLineEdit->text();
77void QgsProcessingPointCloudExpressionLineEdit::setExpression(
const QString &newExpression )
80 mLineEdit->setText( newExpression );
83void QgsProcessingPointCloudExpressionLineEdit::editExpression()
85 const QString currentExpression = expression();
86 QgsProcessingPointCloudExpressionDialog dlg( mLayer );
87 dlg.setExpression( currentExpression );
91 const QString newExpression = dlg.expression();
92 setExpression( newExpression );
96void QgsProcessingPointCloudExpressionLineEdit::expressionEdited()
98 emit expressionChanged( expression() );
101void QgsProcessingPointCloudExpressionLineEdit::expressionEdited(
const QString &expression )
103 emit expressionChanged( expression );
107QgsProcessingPointCloudExpressionDialog::QgsProcessingPointCloudExpressionDialog(
QgsPointCloudLayer *layer,
const QString &startExpression, QWidget *parent )
110 , mInitialText( startExpression )
115 mModelAttributes =
new QStandardItemModel();
116 mModelValues =
new QStandardItemModel();
117 lstAttributes->setModel( mModelAttributes );
118 lstValues->setModel( mModelValues );
120 populateAttributes();
122 connect( lstAttributes->selectionModel(), &QItemSelectionModel::currentChanged,
this, &QgsProcessingPointCloudExpressionDialog::lstAttributes_currentChanged );
123 connect( lstAttributes, &QListView::doubleClicked,
this, &QgsProcessingPointCloudExpressionDialog::lstAttributes_doubleClicked );
124 connect( lstValues, &QListView::doubleClicked,
this, &QgsProcessingPointCloudExpressionDialog::lstValues_doubleClicked );
125 connect( btnEqual, &QPushButton::clicked,
this, &QgsProcessingPointCloudExpressionDialog::btnEqual_clicked );
126 connect( btnLessThan, &QPushButton::clicked,
this, &QgsProcessingPointCloudExpressionDialog::btnLessThan_clicked );
127 connect( btnGreaterThan, &QPushButton::clicked,
this, &QgsProcessingPointCloudExpressionDialog::btnGreaterThan_clicked );
128 connect( btnIn, &QPushButton::clicked,
this, &QgsProcessingPointCloudExpressionDialog::btnIn_clicked );
129 connect( btnNotIn, &QPushButton::clicked,
this, &QgsProcessingPointCloudExpressionDialog::btnNotIn_clicked );
130 connect( btnLessEqual, &QPushButton::clicked,
this, &QgsProcessingPointCloudExpressionDialog::btnLessEqual_clicked );
131 connect( btnGreaterEqual, &QPushButton::clicked,
this, &QgsProcessingPointCloudExpressionDialog::btnGreaterEqual_clicked );
132 connect( btnNotEqual, &QPushButton::clicked,
this, &QgsProcessingPointCloudExpressionDialog::btnNotEqual_clicked );
133 connect( btnAnd, &QPushButton::clicked,
this, &QgsProcessingPointCloudExpressionDialog::btnAnd_clicked );
134 connect( btnOr, &QPushButton::clicked,
this, &QgsProcessingPointCloudExpressionDialog::btnOr_clicked );
136 QPushButton *pbn =
new QPushButton( tr(
"&Test" ) );
137 buttonBox->addButton( pbn, QDialogButtonBox::ActionRole );
138 connect( pbn, &QAbstractButton::clicked,
this, &QgsProcessingPointCloudExpressionDialog::test );
140 pbn =
new QPushButton( tr(
"&Clear" ) );
141 buttonBox->addButton( pbn, QDialogButtonBox::ActionRole );
142 connect( pbn, &QAbstractButton::clicked,
this, &QgsProcessingPointCloudExpressionDialog::clear );
144 mTxtSql->setText( mInitialText );
147void QgsProcessingPointCloudExpressionDialog::setExpression(
const QString &text )
149 mTxtSql->setText( text );
152QString QgsProcessingPointCloudExpressionDialog::expression()
154 return mTxtSql->text();
157void QgsProcessingPointCloudExpressionDialog::populateAttributes()
164 const QgsFields &fields = mLayer->dataProvider()->attributes().toFields();
165 mTxtSql->setFields( fields );
166 for (
int idx = 0; idx < fields.
count(); ++idx )
169 mModelAttributes->insertRow( mModelAttributes->rowCount(), myItem );
173void QgsProcessingPointCloudExpressionDialog::lstAttributes_currentChanged(
const QModelIndex ¤t,
const QModelIndex &previous )
177 mModelValues->clear();
178 const QString attribute = current.data().toString();
179 if ( attribute.compare( QLatin1String(
"Classification" ), Qt::CaseInsensitive ) == 0 )
182 for (
int i = 0; i <= 18; ++i )
184 QStandardItem *item =
new QStandardItem( QString(
"%1: %2" ).arg( i ).arg( codes.value( i ) ) );
185 item->setData( i, Qt::UserRole );
186 mModelValues->insertRow( mModelValues->rowCount(), item );
192 double value = stats.
minimum( attribute );
193 QString valueString = std::isnan( value ) ? tr(
"n/a" ) : QString::number( value );
194 QStandardItem *item =
new QStandardItem( tr(
"Minimum: %1" ).arg( valueString ) );
195 item->setData( value, Qt::UserRole );
196 mModelValues->insertRow( mModelValues->rowCount(), item );
198 value = stats.
maximum( attribute );
199 valueString = std::isnan( value ) ? tr(
"n/a" ) : QString::number( value );
200 item =
new QStandardItem( tr(
"Maximum: %1" ).arg( valueString ) );
201 item->setData( value, Qt::UserRole );
202 mModelValues->insertRow( mModelValues->rowCount(), item );
204 value = stats.
mean( attribute );
205 valueString = std::isnan( value ) ? tr(
"n/a" ) : QString::number( value );
206 item =
new QStandardItem( tr(
"Mean: %1" ).arg( valueString ) );
207 item->setData( value, Qt::UserRole );
208 mModelValues->insertRow( mModelValues->rowCount(), item );
210 value = stats.
stDev( attribute );
211 valueString = std::isnan( value ) ? tr(
"n/a" ) : QString::number( value );
212 item =
new QStandardItem( tr(
"StdDev: %1" ).arg( valueString ) );
213 item->setData( value, Qt::UserRole );
214 mModelValues->insertRow( mModelValues->rowCount(), item );
218void QgsProcessingPointCloudExpressionDialog::lstAttributes_doubleClicked(
const QModelIndex &index )
220 mTxtSql->insertText( QStringLiteral(
"%1 " ).arg( mModelAttributes->data( index ).toString() ) );
224void QgsProcessingPointCloudExpressionDialog::lstValues_doubleClicked(
const QModelIndex &index )
226 mTxtSql->insertText( QStringLiteral(
"%1 " ).arg( mModelValues->data( index, Qt::UserRole ).toString() ) );
230void QgsProcessingPointCloudExpressionDialog::btnEqual_clicked()
232 mTxtSql->insertText( QStringLiteral(
"= " ) );
236void QgsProcessingPointCloudExpressionDialog::btnLessThan_clicked()
238 mTxtSql->insertText( QStringLiteral(
"< " ) );
242void QgsProcessingPointCloudExpressionDialog::btnGreaterThan_clicked()
244 mTxtSql->insertText( QStringLiteral(
"> " ) );
248void QgsProcessingPointCloudExpressionDialog::btnIn_clicked()
250 mTxtSql->insertText( QStringLiteral(
"IN () " ) );
252 mTxtSql->getCursorPosition( &i, &j );
253 mTxtSql->setCursorPosition( i, j - 2 );
257void QgsProcessingPointCloudExpressionDialog::btnNotIn_clicked()
259 mTxtSql->insertText( QStringLiteral(
"NOT IN () " ) );
261 mTxtSql->getCursorPosition( &i, &j );
262 mTxtSql->setCursorPosition( i, j - 2 );
266void QgsProcessingPointCloudExpressionDialog::btnLessEqual_clicked()
268 mTxtSql->insertText( QStringLiteral(
"<= " ) );
272void QgsProcessingPointCloudExpressionDialog::btnGreaterEqual_clicked()
274 mTxtSql->insertText( QStringLiteral(
">= " ) );
278void QgsProcessingPointCloudExpressionDialog::btnNotEqual_clicked()
280 mTxtSql->insertText( QStringLiteral(
"!= " ) );
284void QgsProcessingPointCloudExpressionDialog::btnAnd_clicked()
286 mTxtSql->insertText( QStringLiteral(
"AND " ) );
290void QgsProcessingPointCloudExpressionDialog::btnOr_clicked()
292 mTxtSql->insertText( QStringLiteral(
"OR " ) );
296void QgsProcessingPointCloudExpressionDialog::test()
298 QgsPointCloudExpression expression( mTxtSql->text() );
300 if ( !expression.isValid() && !mTxtSql->text().isEmpty() )
302 QMessageBox::warning(
this,
303 tr(
"Query Result" ),
304 tr(
"An error occurred while parsing the expression:\n%1" ).arg( expression.parserErrorString() ) );
308 const QSet<QString> attributes = expression.referencedAttributes();
310 for (
const auto &attribute : attributes )
312 if ( mLayer && mLayer->dataProvider() &&
313 !mLayer->dataProvider()->attributes().find( attribute, offset ) )
315 QMessageBox::warning(
this,
316 tr(
"Query Result" ),
317 tr(
"\"%1\" not recognized as an available attribute." ).arg( attribute ) );
321 QMessageBox::information(
this,
322 tr(
"Query Result" ),
323 tr(
"The expression was successfully parsed." ) );
327void QgsProcessingPointCloudExpressionDialog::clear()
static QIcon getThemeIcon(const QString &name, const QColor &fillColor=QColor(), const QColor &strokeColor=QColor())
Helper to get a theme icon.
QString displayNameWithAlias() const
Returns the name to use when displaying this field and adds the alias in parenthesis if it is defined...
Container of fields for a vector layer.
QgsField at(int i) const
Returns the field at particular index (must be in range 0..N-1).
QLineEdit subclass with built in support for clearing the widget's value and handling custom null val...
static void enableAutoGeometryRestore(QWidget *widget, const QString &key=QString())
Register the widget to allow its position to be automatically saved and restored when open and closed...
static QMap< int, QString > translatedLasClassificationCodes()
Returns the map of LAS classification code to translated string value, corresponding to the ASPRS Sta...
Represents a map layer supporting display of point clouds.
Class used to store statistics of a point cloud dataset.
double maximum(const QString &attribute) const
Returns the maximum value for the attribute attribute If no matching statistic is available then NaN ...
double stDev(const QString &attribute) const
Returns the standard deviation value for the attribute attribute If no matching statistic is availabl...
double mean(const QString &attribute) const
Returns the mean value for the attribute attribute If no matching statistic is available then NaN wil...
double minimum(const QString &attribute) const
Returns the minimum value for the attribute attribute If no matching statistic is available then NaN ...