guiutil.h

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// Copyright (c) 2011-2016 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_GUIUTIL_H
#define BITCOIN_QT_GUIUTIL_H
 
#include <consensus/amount.h>
#include <netaddress.h>
#include <util/fs.h>
 
#include <QEvent>
#include <QHeaderView>
#include <QItemDelegate>
#include <QLabel>
#include <QMessageBox>
#include <QObject>
#include <QProgressBar>
#include <QString>
#include <QTableView>
 
#include <chrono>
 
class QValidatedLineEdit;
class SendCoinsRecipient;
class CChainParams;
class Config;
 
namespace interfaces {
class Node;
}
 
QT_BEGIN_NAMESPACE
class QAbstractItemView;
class QAction;
class QDateTime;
class QDialog;
class QFont;
class QLineEdit;
class QMenu;
class QPoint;
class QProgressDialog;
class QUrl;
class QWidget;
QT_END_NAMESPACE
 
namespace GUIUtil {
 
// Create human-readable string from date
QString dateTimeStr(const QDateTime &datetime);
QString dateTimeStr(qint64 nTime);
 
// Return a monospace font
QFont fixedPitchFont();
 
// Generate an invalid, but convincing address.
std::string DummyAddress(const CChainParams &params);
 
// Convert any address into cashaddr
QString convertToCashAddr(const CChainParams &params, const QString &addr);
 
// Set up widget for address
void setupAddressWidget(QValidatedLineEdit *widget, QWidget *parent);
 
// Parse "bitcoincash:" URI into recipient object, return true on successful
// parsing
bool parseBitcoinURI(const QString &scheme, const QUrl &uri,
                     SendCoinsRecipient *out);
bool parseBitcoinURI(const QString &scheme, QString uri,
                     SendCoinsRecipient *out);
QString formatBitcoinURI(const SendCoinsRecipient &info);
QString formatBitcoinURI(const CChainParams &params,
                         const SendCoinsRecipient &info);
 
// Returns true if given address+amount meets "dust" definition
bool isDust(interfaces::Node &node, const QString &address, const Amount amount,
            const CChainParams &chainParams);
 
// HTML escaping for rich text controls
QString HtmlEscape(const QString &str, bool fMultiLine = false);
QString HtmlEscape(const std::string &str, bool fMultiLine = false);
 
void copyEntryData(const QAbstractItemView *view, int column,
                   int role = Qt::EditRole);
 
QList<QModelIndex> getEntryData(const QAbstractItemView *view, int column);
 
bool hasEntryData(const QAbstractItemView *view, int column, int role);
 
void setClipboard(const QString &str);
 
QString getDefaultDataDirectory();
 
QString ExtractFirstSuffixFromFilter(const QString &filter);
 
QString getSaveFileName(QWidget *parent, const QString &caption,
                        const QString &dir, const QString &filter,
                        QString *selectedSuffixOut);
 
QString getOpenFileName(QWidget *parent, const QString &caption,
                        const QString &dir, const QString &filter,
                        QString *selectedSuffixOut);
 
Qt::ConnectionType blockingGUIThreadConnection();
 
// Determine whether a widget is hidden behind other windows
bool isObscured(QWidget *w);
 
// Activate, show and raise the widget
void bringToFront(QWidget *w);
 
// Set shortcut to close window
void handleCloseWindowShortcut(QWidget *w);
 
// Open debug.log
void openDebugLogfile();
 
// Open the config file
bool openBitcoinConf();
 
// Split a QString using given separator, skipping the empty parts
QStringList splitSkipEmptyParts(const QString &s, const QString &separator);
 
class ToolTipToRichTextFilter : public QObject {
    Q_OBJECT
 
public:
    explicit ToolTipToRichTextFilter(int size_threshold, QObject *parent = 0);
 
protected:
    bool eventFilter(QObject *obj, QEvent *evt) override;
 
private:
    int size_threshold;
};
 
class LabelOutOfFocusEventFilter : public QObject {
    Q_OBJECT
 
public:
    explicit LabelOutOfFocusEventFilter(QObject *parent);
    bool eventFilter(QObject *watched, QEvent *event) override;
};
 
class TableViewLastColumnResizingFixer : public QObject {
    Q_OBJECT
 
public:
    TableViewLastColumnResizingFixer(QTableView *table, int lastColMinimumWidth,
                                     int allColsMinimumWidth, QObject *parent);
    void stretchColumnWidth(int column);
 
private:
    QTableView *tableView;
    int lastColumnMinimumWidth;
    int allColumnsMinimumWidth;
    int lastColumnIndex;
    int columnCount;
    int secondToLastColumnIndex;
 
    void adjustTableColumnsWidth();
    int getAvailableWidthForColumn(int column);
    int getColumnsWidth();
    void connectViewHeadersSignals();
    void disconnectViewHeadersSignals();
    void setViewHeaderResizeMode(int logicalIndex,
                                 QHeaderView::ResizeMode resizeMode);
    void resizeColumn(int nColumnIndex, int width);
 
private Q_SLOTS:
    void on_sectionResized(int logicalIndex, int oldSize, int newSize);
    void on_geometriesChanged();
};
 
bool GetStartOnSystemStartup();
bool SetStartOnSystemStartup(bool fAutoStart);
 
fs::path qstringToBoostPath(const QString &path);
 
QString boostPathToQString(const fs::path &path);
 
QString NetworkToQString(Network net);
 
QString formatDurationStr(std::chrono::seconds dur);
 
QString formatServicesStr(quint64 mask);
 
QString formatPingTime(std::chrono::microseconds ping_time);
 
QString formatTimeOffset(int64_t nTimeOffset);
 
QString formatNiceTimeOffset(qint64 secs);
 
QString formatBytes(uint64_t bytes);
 
qreal calculateIdealFontSize(int width, const QString &text, QFont font,
                             qreal minPointSize = 4, qreal startPointSize = 14);
 
class ClickableLabel : public QLabel {
    Q_OBJECT
 
public:
    bool hasPixmap() const;
 
Q_SIGNALS:
    void clicked(const QPoint &point);
 
protected:
    void mouseReleaseEvent(QMouseEvent *event) override;
};
 
class ClickableProgressBar : public QProgressBar {
    Q_OBJECT
 
Q_SIGNALS:
    void clicked(const QPoint &point);
 
protected:
    void mouseReleaseEvent(QMouseEvent *event) override;
};
 
typedef ClickableProgressBar ProgressBar;
 
class ItemDelegate : public QItemDelegate {
    Q_OBJECT
public:
    ItemDelegate(QObject *parent) : QItemDelegate(parent) {}
 
Q_SIGNALS:
    void keyEscapePressed();
 
private:
    bool eventFilter(QObject *object, QEvent *event) override;
};
 
int TextWidth(const QFontMetrics &fm, const QString &text);
 
void LogQtInfo();
 
void PopupMenu(QMenu *menu, const QPoint &point, QAction *at_action = nullptr);
 
// Fix known bugs in QProgressDialog class.
void PolishProgressDialog(QProgressDialog *dialog);
 
void ShowModalDialogAsynchronously(QDialog *dialog);
} // namespace GUIUtil
 
#endif // BITCOIN_QT_GUIUTIL_H