src/qt/intro.h

   1 // Copyright (c) 2011-2016 The Bitcoin Core developers
   2 // Distributed under the MIT software license, see the accompanying
   3 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
   4
   5 #ifndef BITCOIN_QT_INTRO_H
   6 #define BITCOIN_QT_INTRO_H
   7
   8 #include <QDialog>
   9 #include <QMutex>
  10 #include <QThread>
  11
  12 static const bool DEFAULT_CHOOSE_DATADIR = false;
  13
  14 class FreespaceChecker;
  15
  16 namespace Ui {
  17     class Intro;
  18 }
  19
  20 /** Introduction screen (pre-GUI startup).
  21   Allows the user to choose a data directory,
  22   in which the wallet and block chain will be stored.
  23  */
  24 class Intro : public QDialog
  25 {
  26     Q_OBJECT
  27
  28 public:
  29     explicit Intro(QWidget *parent = 0);
  30     ~Intro();
  31
  32     QString getDataDirectory();
  33     void setDataDirectory(const QString &dataDir);
  34
  35     /**
  36      * Determine data directory. Let the user choose if the current one doesn't exist.
  37      *
  38      * @returns true if a data directory was selected, false if the user cancelled the selection
  39      * dialog.
  40      *
  41      * @note do NOT call global GetDataDir() before calling this function, this
  42      * will cause the wrong path to be cached.
  43      */
  44     static bool pickDataDirectory();
  45
  46     /**
  47      * Determine default data directory for operating system.
  48      */
  49     static QString getDefaultDataDirectory();
  50
  51 Q_SIGNALS:
  52     void requestCheck();
  53     void stopThread();
  54
  55 public Q_SLOTS:
  56     void setStatus(int status, const QString &message, quint64 bytesAvailable);
  57
  58 private Q_SLOTS:
  59     void on_dataDirectory_textChanged(const QString &arg1);
  60     void on_ellipsisButton_clicked();
  61     void on_dataDirDefault_clicked();
  62     void on_dataDirCustom_clicked();
  63
  64 private:
  65     Ui::Intro *ui;
  66     QThread *thread;
  67     QMutex mutex;
  68     bool signalled;
  69     QString pathToCheck;
  70
  71     void startThread();
  72     void checkPath(const QString &dataDir);
  73     QString getPathToCheck();
  74
  75     friend class FreespaceChecker;
  76 };
  77
  78 #endif // BITCOIN_QT_INTRO_H