text: /*
   * Copyright (C) 2005-2019 Centre National d'Etudes Spatiales (CNES)
   *
   * This file is part of Orfeo Toolbox
   *
   *     https://www.orfeo-toolbox.org/
   *
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   *
   *     http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  
  #include "otbWrapperQtWidgetStringParameter.h"
  
  namespace otb
  {
  namespace Wrapper
  {
  
  QtWidgetStringParameter::QtWidgetStringParameter(StringParameter* param, QtWidgetModel* m, QWidget* parent)
    : QtWidgetParameterBase(param, m, parent), m_StringParam(param)
  {
  }
  
  QtWidgetStringParameter::~QtWidgetStringParameter()
  {
  }
  
  void QtWidgetStringParameter::DoUpdateGUI()
  {
    m_Input->setToolTip(QString::fromStdString(m_StringParam->GetDescription()));
  
    // Update the lineEdit only if there is a change and that's not empty or whitespaces
    QString text(m_StringParam->GetValue().c_str());
    if (!text.trimmed().isEmpty() && text != m_Input->text())
    {
      m_Input->setText(text);
    }
  }
  
  void QtWidgetStringParameter::DoCreateWidget()
  {
    // Set up input text edit
    m_HLayout = new QHBoxLayout;
    m_HLayout->setSpacing(0);
    m_HLayout->setContentsMargins(0, 0, 0, 0);
  
    m_Input = new QLineEdit(this);
    m_Input->setToolTip(QString::fromStdString(m_StringParam->GetDescription()));
    m_HLayout->addWidget(m_Input);
  
    connect(m_Input, &QLineEdit::textChanged, this, &QtWidgetStringParameter::SetValue);
    connect(m_Input, &QLineEdit::textChanged, GetModel(), &QtWidgetModel::NotifyUpdate);
  
    this->setLayout(m_HLayout);
  
    if (m_StringParam->GetRole() == Role_Output)
    {
      m_Input->setEnabled(false);
    }
  }
  
  void QtWidgetStringParameter::SetValue(const QString& value)
  {
    m_StringParam->SetValue(value.toLatin1().constData());
    // notify of value change
    QString key(m_StringParam->GetKey());
    emit    ParameterChanged(key);
  }
  }
  }
  