ComboSelectorDialog.cpp

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//  ************************************************************************************************
//
//  BornAgain: simulate and fit reflection and scattering
//
//! @file      GUI/View/Info/ComboSelectorDialog.cpp
//! @brief     Implements class ComboSelectorDialog
//!
//! @homepage  http://www.bornagainproject.org
//! @license   GNU General Public License v3 or higher (see COPYING)
//! @copyright Forschungszentrum Jülich GmbH 2018
//! @authors   Scientific Computing Group at MLZ (see CITATION, AUTHORS)
//
//  ************************************************************************************************
 
#include "GUI/View/Info/ComboSelectorDialog.h"
#include <QApplication> // qApp
#include <QComboBox>
#include <QLabel>
#include <QMessageBox>
#include <QPushButton>
#include <QVBoxLayout>
 
ComboSelectorDialog::ComboSelectorDialog(QWidget* parent)
    : QDialog(parent)
    , m_topLabel(new QLabel)
    , m_comboSelector(new QComboBox)
    , m_bottomLabel(new QLabel)
{
    QColor bgColor(240, 240, 240, 255);
    QPalette palette;
    palette.setColor(QPalette::Window, bgColor);
    setAutoFillBackground(true);
    setPalette(palette);
 
    setFixedSize(500, 250);
    setWindowTitle("Please make a selection");
    setWindowFlags(Qt::Dialog);
 
    auto* topLayout = new QHBoxLayout;
    topLayout->addLayout(createLogoLayout(), 0);
    topLayout->addLayout(createInfoLayout(), 1);
 
    auto* mainLayout = new QVBoxLayout;
    mainLayout->addLayout(topLayout);
    mainLayout->addLayout(createButtonLayout());
 
    setLayout(mainLayout);
}
 
void ComboSelectorDialog::addItems(const QStringList& selection, const QString& currentItem)
{
    m_comboSelector->addItems(selection);
 
    if (selection.contains(currentItem))
        m_comboSelector->setCurrentIndex(selection.indexOf(currentItem));
}
 
void ComboSelectorDialog::setTextTop(const QString& text)
{
    m_topLabel->setText(text);
}
 
void ComboSelectorDialog::setTextBottom(const QString& text)
{
    m_bottomLabel->setText(text);
}
 
QString ComboSelectorDialog::currentText() const
{
    return m_comboSelector->currentText();
}
 
//! Returns layout with icon for left part of the widget.
 
QBoxLayout* ComboSelectorDialog::createLogoLayout()
{
    auto* result = new QVBoxLayout;
 
    QIcon icon = qApp->style()->standardIcon(QStyle::SP_MessageBoxQuestion);
 
    auto* label = new QLabel;
    label->setPixmap(icon.pixmap(100));
 
    result->addWidget(label);
    result->addStretch(1);
    result->setContentsMargins(0, 5, 0, 5);
 
    return result;
}
 
//! Creates right layout with text and QComboBox selection.
 
QBoxLayout* ComboSelectorDialog::createInfoLayout()
{
    auto* result = new QVBoxLayout;
 
    m_topLabel->setWordWrap(true);
    m_bottomLabel->setWordWrap(true);
 
    result->addWidget(m_topLabel);
    result->addStretch(1);
    result->addWidget(m_comboSelector);
    result->addStretch(1);
    result->addWidget(m_bottomLabel);
    result->addStretch(1);
    result->setContentsMargins(0, 5, 5, 5);
 
    return result;
}
 
//! Creates button layout with buttons.
 
QBoxLayout* ComboSelectorDialog::createButtonLayout()
{
    auto* result = new QHBoxLayout;
 
    auto* cancelButton = new QPushButton("Cancel");
    connect(cancelButton, &QPushButton::clicked, this, &ComboSelectorDialog::reject);
 
    auto* okButton = new QPushButton("Try current selection");
    connect(okButton, &QPushButton::clicked, this, &ComboSelectorDialog::accept);
 
    result->addStretch(1);
    result->addWidget(okButton);
    result->addWidget(cancelButton);
 
    return result;
}