intro.h

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// Copyright (c) 2011-2021 The Bitcoin Core developers
// Distributed under the MIT software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
#ifndef BITCOIN_QT_INTRO_H
#define BITCOIN_QT_INTRO_H
 
#include <QDialog>
#include <QMutex>
#include <QThread>
 
static const bool DEFAULT_CHOOSE_DATADIR = false;
 
class FreespaceChecker;
 
namespace interfaces {
    class Node;
}
 
namespace Ui {
    class Intro;
}
 
class Intro : public QDialog
{
    Q_OBJECT
 
public:
    explicit Intro(QWidget *parent = nullptr,
                   int64_t blockchain_size_gb = 0, int64_t chain_state_size_gb = 0);
    ~Intro();
 
    QString getDataDirectory();
    void setDataDirectory(const QString &dataDir);
    int64_t getPruneMiB() const;
 
    static bool showIfNeeded(bool& did_show_intro, int64_t& prune_MiB);
 
Q_SIGNALS:
    void requestCheck();
 
public Q_SLOTS:
    void setStatus(int status, const QString &message, quint64 bytesAvailable);
 
private Q_SLOTS:
    void on_dataDirectory_textChanged(const QString &arg1);
    void on_ellipsisButton_clicked();
    void on_dataDirDefault_clicked();
    void on_dataDirCustom_clicked();
 
private:
    Ui::Intro *ui;
    bool m_prune_checkbox_is_default{true};
    QThread* thread{nullptr};
    QMutex mutex;
    bool signalled{false};
    QString pathToCheck;
    const int64_t m_blockchain_size_gb;
    const int64_t m_chain_state_size_gb;
    int64_t m_required_space_gb{0};
    uint64_t m_bytes_available{0};
    int64_t m_prune_target_gb;
 
    void startThread();
    void checkPath(const QString &dataDir);
    QString getPathToCheck();
    void UpdatePruneLabels(bool prune_checked);
    void UpdateFreeSpaceLabel();
 
    friend class FreespaceChecker;
};
 
#endif // BITCOIN_QT_INTRO_H