1 // Copyright (c) 2011-2013 The Bitcoin developers
2 // Distributed under the MIT/X11 software license, see the accompanying
3 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
5 #ifndef BITCOIN_QT_GUIUTIL_H
6 #define BITCOIN_QT_GUIUTIL_H
11 #include <QHeaderView>
12 #include <QMessageBox>
14 #include <QProgressBar>
18 #include <boost/filesystem.hpp>
20 class QValidatedLineEdit;
21 class SendCoinsRecipient;
24 class QAbstractItemView;
32 /** Utility functions used by the Bitcoin Qt UI.
36 // Create human-readable string from date
37 QString dateTimeStr(const QDateTime &datetime);
38 QString dateTimeStr(qint64 nTime);
40 // Render Bitcoin addresses in monospace font
41 QFont bitcoinAddressFont();
43 // Set up widgets for address and amounts
44 void setupAddressWidget(QValidatedLineEdit *widget, QWidget *parent);
45 void setupAmountWidget(QLineEdit *widget, QWidget *parent);
47 // Parse "bitcoin:" URI into recipient object, return true on successful parsing
48 bool parseBitcoinURI(const QUrl &uri, SendCoinsRecipient *out);
49 bool parseBitcoinURI(QString uri, SendCoinsRecipient *out);
50 QString formatBitcoinURI(const SendCoinsRecipient &info);
52 // Returns true if given address+amount meets "dust" definition
53 bool isDust(const QString& address, const CAmount& amount);
55 // HTML escaping for rich text controls
56 QString HtmlEscape(const QString& str, bool fMultiLine=false);
57 QString HtmlEscape(const std::string& str, bool fMultiLine=false);
59 /** Copy a field of the currently selected entry of a view to the clipboard. Does nothing if nothing
61 @param[in] column Data column to extract from the model
62 @param[in] role Data role to extract from the model
63 @see TransactionView::copyLabel, TransactionView::copyAmount, TransactionView::copyAddress
65 void copyEntryData(QAbstractItemView *view, int column, int role=Qt::EditRole);
67 void setClipboard(const QString& str);
69 /** Get save filename, mimics QFileDialog::getSaveFileName, except that it appends a default suffix
70 when no suffix is provided by the user.
72 @param[in] parent Parent window (or 0)
73 @param[in] caption Window caption (or empty, for default)
74 @param[in] dir Starting directory (or empty, to default to documents directory)
75 @param[in] filter Filter specification such as "Comma Separated Files (*.csv)"
76 @param[out] selectedSuffixOut Pointer to return the suffix (file type) that was selected (or 0).
77 Can be useful when choosing the save file format based on suffix.
79 QString getSaveFileName(QWidget *parent, const QString &caption, const QString &dir,
80 const QString &filter,
81 QString *selectedSuffixOut);
83 /** Get open filename, convenience wrapper for QFileDialog::getOpenFileName.
85 @param[in] parent Parent window (or 0)
86 @param[in] caption Window caption (or empty, for default)
87 @param[in] dir Starting directory (or empty, to default to documents directory)
88 @param[in] filter Filter specification such as "Comma Separated Files (*.csv)"
89 @param[out] selectedSuffixOut Pointer to return the suffix (file type) that was selected (or 0).
90 Can be useful when choosing the save file format based on suffix.
92 QString getOpenFileName(QWidget *parent, const QString &caption, const QString &dir,
93 const QString &filter,
94 QString *selectedSuffixOut);
96 /** Get connection type to call object slot in GUI thread with invokeMethod. The call will be blocking.
98 @returns If called from the GUI thread, return a Qt::DirectConnection.
99 If called from another thread, return a Qt::BlockingQueuedConnection.
101 Qt::ConnectionType blockingGUIThreadConnection();
103 // Determine whether a widget is hidden behind other windows
104 bool isObscured(QWidget *w);
107 void openDebugLogfile();
109 // Replace invalid default fonts with known good ones
110 void SubstituteFonts();
112 /** Qt event filter that intercepts ToolTipChange events, and replaces the tooltip with a rich text
113 representation if needed. This assures that Qt can word-wrap long tooltip messages.
114 Tooltips longer than the provided size threshold (in characters) are wrapped.
116 class ToolTipToRichTextFilter : public QObject
121 explicit ToolTipToRichTextFilter(int size_threshold, QObject *parent = 0);
124 bool eventFilter(QObject *obj, QEvent *evt);
131 * Makes a QTableView last column feel as if it was being resized from its left border.
132 * Also makes sure the column widths are never larger than the table's viewport.
133 * In Qt, all columns are resizable from the right, but it's not intuitive resizing the last column from the right.
134 * Usually our second to last columns behave as if stretched, and when on strech mode, columns aren't resizable
135 * interactively or programatically.
137 * This helper object takes care of this issue.
140 class TableViewLastColumnResizingFixer: public QObject
145 TableViewLastColumnResizingFixer(QTableView* table, int lastColMinimumWidth, int allColsMinimumWidth);
146 void stretchColumnWidth(int column);
149 QTableView* tableView;
150 int lastColumnMinimumWidth;
151 int allColumnsMinimumWidth;
154 int secondToLastColumnIndex;
156 void adjustTableColumnsWidth();
157 int getAvailableWidthForColumn(int column);
158 int getColumnsWidth();
159 void connectViewHeadersSignals();
160 void disconnectViewHeadersSignals();
161 void setViewHeaderResizeMode(int logicalIndex, QHeaderView::ResizeMode resizeMode);
162 void resizeColumn(int nColumnIndex, int width);
165 void on_sectionResized(int logicalIndex, int oldSize, int newSize);
166 void on_geometriesChanged();
169 bool GetStartOnSystemStartup();
170 bool SetStartOnSystemStartup(bool fAutoStart);
172 /** Save window size and position */
173 void saveWindowGeometry(const QString& strSetting, QWidget *parent);
174 /** Restore window size and position */
175 void restoreWindowGeometry(const QString& strSetting, const QSize &defaultSizeIn, QWidget *parent);
177 /* Convert QString to OS specific boost path through UTF-8 */
178 boost::filesystem::path qstringToBoostPath(const QString &path);
180 /* Convert OS specific boost path to QString through UTF-8 */
181 QString boostPathToQString(const boost::filesystem::path &path);
183 /* Convert seconds into a QString with days, hours, mins, secs */
184 QString formatDurationStr(int secs);
186 /* Format CNodeStats.nServices bitmask into a user-readable string */
187 QString formatServicesStr(quint64 mask);
189 /* Format a CNodeCombinedStats.dPingTime into a user-readable string or display N/A, if 0*/
190 QString formatPingTime(double dPingTime);
192 #if defined(Q_OS_MAC) && QT_VERSION >= 0x050000
193 // workaround for Qt OSX Bug:
194 // https://bugreports.qt-project.org/browse/QTBUG-15631
195 // QProgressBar uses around 10% CPU even when app is in background
196 class ProgressBar : public QProgressBar
198 bool event(QEvent *e) {
199 return (e->type() != QEvent::StyleAnimationUpdate) ? QProgressBar::event(e) : false;
203 typedef QProgressBar ProgressBar;
206 } // namespace GUIUtil
208 #endif // BITCOIN_QT_GUIUTIL_H