TextEditor.cpp

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// This file is part of DynExp.
 
#include "stdafx.h"
#include "moc_TextEditor.cpp"
#include "ui_TextEditor.h"
#include "TextEditor.h"
 
TextEditor::TextEditor(QWidget* parent, const std::filesystem::path& Filename)
    : QWidget(parent, Qt::Window | Qt::CustomizeWindowHint | Qt::WindowTitleHint | Qt::WindowMinMaxButtonsHint | Qt::WindowCloseButtonHint),
    ui(std::make_unique<Ui::TextEditor>()),
    Filename(Filename)
{
    ui->setupUi(this);
 
    setWindowTitle(QString("Edit \"") + QString::fromStdString(Filename.string()) + "\"");
 
    if (this->Filename.extension().string() == ".py")
    {
        SyntaxHighlighter = new PythonSyntaxHighlighter(ui->TEText);
    }
}
 
void TextEditor::showEvent(QShowEvent* event)
{
    // Not just retoring from minimization...
    if (!event->spontaneous())
    {
        std::string Text;
 
        try
        {
            Text = Util::ReadFromFile(Filename.string());
        }
        catch (const Util::FileIOErrorException& e)
        {
            QMessageBox::warning(this, "DynExp - Error", e.what());
 
            QMetaObject::invokeMethod(this, "close", Qt::QueuedConnection);
 
            return;
        }
 
        ui->TEText->setPlainText(QString::fromStdString(Text));
    }
 
    event->accept();
}
 
void TextEditor::closeEvent(QCloseEvent* event)
{
    std::string Text;
 
    try
    {
        Text = Util::ReadFromFile(Filename.string());
    }
    catch ([[maybe_unused]] const Util::FileIOErrorException& e)
    {
        QWidget::closeEvent(event);
    }
 
    if (ui->TEText->toPlainText().toStdString() != Text)
    {
        auto Reply = QMessageBox::question(this, "DynExp - Save changes?",
            QString::fromStdString("The file \"" + Filename.string() + "\" has been edited. Save the changes?"),
            QMessageBox::StandardButton::Yes | QMessageBox::StandardButton::No | QMessageBox::StandardButton::Abort,
            QMessageBox::StandardButton::Abort);
 
        if (Reply == QMessageBox::StandardButton::Abort)
        {
            event->ignore();
 
            return;
        }
        else if (Reply == QMessageBox::StandardButton::Yes)
        {
            if (!DoSave())
            {
                event->ignore();
 
                return;
            }
        }
    }
 
    QWidget::closeEvent(event);
}
 
bool TextEditor::DoSave()
{
    if (!Util::SaveToFile(QString::fromStdString(Filename.string()), ui->TEText->toPlainText().toStdString()))
    {
        QMessageBox::warning(this, "DynExp - Error", "Error writing data to file.");
 
        return false;
    }
 
    return true;
}
 
void TextEditor::OnSave()
{
    DoSave();
}
 
void TextEditor::OnClose()
{
    close();
}