C++ (Cpp) clearExpression Exemples

Exemple #1

Fichier : qgsvaluerelationsearchwidgetwrapper.cpp Projet : Antoviscomi/QGIS

void QgsValueRelationSearchWidgetWrapper::valueChanged()
{
  QVariant vl = value();
  if ( !vl.isValid() )
  {
    clearExpression();
  }
  else
  {
    QSettings settings;
    setExpression( vl.isNull() ? settings.value( "qgis/nullValue", "NULL" ).toString() : vl.toString() );
  }
  emit expressionChanged( mExpression );
}

Exemple #2

Fichier : qgsrelationreferencesearchwidgetwrapper.cpp Projet : 3liz/Quantum-GIS

void QgsRelationReferenceSearchWidgetWrapper::onValueChanged( const QVariant& value )
{
  if ( !value.isValid() )
  {
    clearExpression();
    emit valueCleared();
  }
  else
  {
    QSettings settings;
    setExpression( value.isNull() ? settings.value( QStringLiteral( "qgis/nullValue" ), "NULL" ).toString() : value.toString() );
    emit valueChanged();
  }
  emit expressionChanged( mExpression );
}

Exemple #3

Fichier : qgsvaluerelationsearchwidgetwrapper.cpp Projet : jonnyforestGIS/QGIS

void QgsValueRelationSearchWidgetWrapper::onValueChanged()
{
  QVariant vl = value();
  if ( !vl.isValid() )
  {
    clearExpression();
    emit valueCleared();
  }
  else
  {
    setExpression( vl.isNull() ? QgsApplication::nullRepresentation() : vl.toString() );
    emit valueChanged();
  }
  emit expressionChanged( mExpression );
}

Exemple #4

Fichier : qgsvaluemapsearchwidgetwrapper.cpp Projet : Antoviscomi/QGIS

void QgsValueMapSearchWidgetWrapper::comboBoxIndexChanged( int idx )
{
  if ( mComboBox )
  {
    if ( idx == 0 )
    {
      clearExpression();
    }
    else
    {
      setExpression( mComboBox->itemData( idx ).toString() );
    }
    emit expressionChanged( mExpression );
  }
}

Exemple #5

Fichier : qgsrelationreferencesearchwidgetwrapper.cpp Projet : alexbruy/QGIS

void QgsRelationReferenceSearchWidgetWrapper::onValueChanged( const QVariant &value )
{
  if ( !value.isValid() )
  {
    clearExpression();
    emit valueCleared();
  }
  else
  {
    QgsSettings settings;
    setExpression( value.isNull() ? QgsApplication::nullRepresentation() : value.toString() );
    emit valueChanged();
  }
  emit expressionChanged( mExpression );
}

Exemple #6

Fichier : calculator.cpp Projet : VeselovAlex/SecondTerm

Calculator::Calculator(QWidget *parent) :
    QWidget(parent),
    ui(new Ui::Calculator), memory(0), result(0), currOperand(0), currOper("")
{
    ui->setupUi(this);

    QSignalMapper *numberPressed = new QSignalMapper(this);

    {
    QObject::connect(ui->n0Button, SIGNAL(clicked()), numberPressed, SLOT(map()));
    QObject::connect(ui->n1Button, SIGNAL(clicked()), numberPressed, SLOT(map()));
    QObject::connect(ui->n2Button, SIGNAL(clicked()), numberPressed, SLOT(map()));
    QObject::connect(ui->n3Button, SIGNAL(clicked()), numberPressed, SLOT(map()));
    QObject::connect(ui->n4Button, SIGNAL(clicked()), numberPressed, SLOT(map()));
    QObject::connect(ui->n5Button, SIGNAL(clicked()), numberPressed, SLOT(map()));
    QObject::connect(ui->n6Button, SIGNAL(clicked()), numberPressed, SLOT(map()));
    QObject::connect(ui->n7Button, SIGNAL(clicked()), numberPressed, SLOT(map()));
    QObject::connect(ui->n8Button, SIGNAL(clicked()), numberPressed, SLOT(map()));
    QObject::connect(ui->n9Button, SIGNAL(clicked()), numberPressed, SLOT(map()));
    QObject::connect(ui->nDotButton, SIGNAL(clicked()), numberPressed, SLOT(map()));
    }

    {
    numberPressed->setMapping(ui->n0Button, "0");
    numberPressed->setMapping(ui->n1Button, "1");
    numberPressed->setMapping(ui->n2Button, "2");
    numberPressed->setMapping(ui->n3Button, "3");
    numberPressed->setMapping(ui->n4Button, "4");
    numberPressed->setMapping(ui->n5Button, "5");
    numberPressed->setMapping(ui->n6Button, "6");
    numberPressed->setMapping(ui->n7Button, "7");
    numberPressed->setMapping(ui->n8Button, "8");
    numberPressed->setMapping(ui->n9Button, "9");
    numberPressed->setMapping(ui->nDotButton, ".");
    }
    QObject::connect(numberPressed, SIGNAL(mapped(QString)), this, SLOT(appendToDisplayString(QString)));
    QObject::connect(this, SIGNAL(displayStringChanged(QString)), ui->lineEdit, SLOT(setText(QString)));

    QObject::connect(ui->cClearButton, SIGNAL(clicked()), this, SLOT(clearDisplayString()));
    QObject::connect(ui->cCEButton, SIGNAL(clicked()), this, SLOT(clearExpression()));
    QObject::connect(ui->cACButton, SIGNAL(clicked()), this, SLOT(clearAll()));
    QObject::connect(ui->cBackSpaceButton, SIGNAL(clicked()), this, SLOT(backSpace()));

    QSignalMapper *operatorPressed = new QSignalMapper;

    QObject::connect(ui->oDivButton, SIGNAL(clicked()), operatorPressed, SLOT(map()));
    QObject::connect(ui->oMultButton, SIGNAL(clicked()), operatorPressed, SLOT(map()));
    QObject::connect(ui->oPlusButton, SIGNAL(clicked()), operatorPressed, SLOT(map()));
    QObject::connect(ui->oMinusButton, SIGNAL(clicked()), operatorPressed, SLOT(map()));
    QObject::connect(ui->oEqButton, SIGNAL(clicked()), operatorPressed, SLOT(map()));

    operatorPressed->setMapping(ui->oDivButton, "/");
    operatorPressed->setMapping(ui->oMultButton, "*");
    operatorPressed->setMapping(ui->oPlusButton, "+");
    operatorPressed->setMapping(ui->oMinusButton, "-");
    operatorPressed->setMapping(ui->oEqButton, "=");

    QObject::connect(operatorPressed, SIGNAL(mapped(QString)), this, SLOT(operButtonPressed(QString)));

    QObject::connect(ui->nDotButton, SIGNAL(clicked(bool)), ui->nDotButton, SLOT(setEnabled(bool)));

    QObject::connect(ui->mClearButton, SIGNAL(clicked()), this, SLOT(clearMemory()));
    QObject::connect(ui->mReadButton, SIGNAL(clicked()), this, SLOT(memoryRead()));
    QObject::connect(ui->mPlusButton, SIGNAL(clicked()), this, SLOT(memoryAdd()));
    QObject::connect(ui->mMinusButton, SIGNAL(clicked()), this, SLOT(memoryDec()));

}

Exemple #7

Fichier : calculator.cpp Projet : VeselovAlex/SecondTerm

void Calculator::clearAll()
{
    clearDisplayString();
    clearExpression();
    clearMemory();
}