Inside Bitcoin

1// Copyright (c) 2011-present 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_SPLASHSCREEN_H
6#define BITCOIN_QT_SPLASHSCREEN_H
7
8#include <QWidget>
9
10#include <memory>
11
12class NetworkStyle;
13
14namespace interfaces {
15class Handler;
16class Node;
17class Wallet;
18};
19
20/** Class for the splashscreen with information of the running client.
21 *
22 * @note this is intentionally not a QSplashScreen. Bitcoin Core initialization
23 * can take a long time, and in that case a progress window that cannot be
24 * moved around and minimized has turned out to be frustrating to the user.
25 */
26class SplashScreen : public QWidget
27{
28    Q_OBJECT
29
30public:
31    explicit SplashScreen(const NetworkStyle *networkStyle);
32    ~SplashScreen();
33    void setNode(interfaces::Node& node);
34
35protected:
36    void paintEvent(QPaintEvent *event) override;
37    void closeEvent(QCloseEvent *event) override;
38
39public Q_SLOTS:
40    /** Show message and progress */
41    void showMessage(const QString &message, int alignment, const QColor &color);
42
43    /** Handle wallet load notifications. */
44    void handleLoadWallet();
45
46protected:
47    bool eventFilter(QObject * obj, QEvent * ev) override;
48
49private:
50    /** Connect core signals to splash screen */
51    void subscribeToCoreSignals();
52    /** Disconnect core signals to splash screen */
53    void unsubscribeFromCoreSignals();
54    /** Initiate shutdown */
55    void shutdown();
56
57    QPixmap pixmap;
58    QString curMessage;
59    QColor curColor;
60    int curAlignment{0};
61
62    interfaces::Node* m_node = nullptr;
63    bool m_shutdown = false;
64    std::unique_ptr<interfaces::Handler> m_handler_init_message;
65    std::unique_ptr<interfaces::Handler> m_handler_show_progress;
66    std::unique_ptr<interfaces::Handler> m_handler_init_wallet;
67    std::unique_ptr<interfaces::Handler> m_handler_load_wallet;
68    std::list<std::unique_ptr<interfaces::Wallet>> m_connected_wallets;
69    std::list<std::unique_ptr<interfaces::Handler>> m_connected_wallet_handlers;
70};
71
72#endif // BITCOIN_QT_SPLASHSCREEN_H
73