text: #ifndef GUIUTIL_H
  #define GUIUTIL_H
  
  #include <QString>
  #include <QObject>
  #include <QMessageBox>
  
  class SendCoinsRecipient;
  
  QT_BEGIN_NAMESPACE
  class QFont;
  class QLineEdit;
  class QWidget;
  class QDateTime;
  class QUrl;
  class QAbstractItemView;
  QT_END_NAMESPACE
  
  /** Utility functions used by the EBanker Qt UI.
   */
  namespace GUIUtil
  {
      // Create human-readable string from date
      QString dateTimeStr(const QDateTime &datetime);
      QString dateTimeStr(qint64 nTime);
  
      // Render EBanker addresses in monospace font
      QFont bitcoinAddressFont();
  
      // Set up widgets for address and amounts
      void setupAddressWidget(QLineEdit *widget, QWidget *parent);
      void setupAmountWidget(QLineEdit *widget, QWidget *parent);
  
      // Parse "bitcoin:" URI into recipient object, return true on successful parsing
      // See EBanker URI definition discussion here: https://bitcointalk.org/index.php?topic=33490.0
      bool parseBitcoinURI(const QUrl &uri, SendCoinsRecipient *out);
      bool parseBitcoinURI(QString uri, SendCoinsRecipient *out);
  
      // HTML escaping for rich text controls
      QString HtmlEscape(const QString& str, bool fMultiLine=false);
      QString HtmlEscape(const std::string& str, bool fMultiLine=false);
  
      /** Copy a field of the currently selected entry of a view to the clipboard. Does nothing if nothing
          is selected.
         @param[in] column  Data column to extract from the model
         @param[in] role    Data role to extract from the model
         @see  TransactionView::copyLabel, TransactionView::copyAmount, TransactionView::copyAddress
       */
      void copyEntryData(QAbstractItemView *view, int column, int role=Qt::EditRole);
  
      /** Get save filename, mimics QFileDialog::getSaveFileName, except that it appends a default suffix
          when no suffix is provided by the user.
  
        @param[in] parent  Parent window (or 0)
        @param[in] caption Window caption (or empty, for default)
        @param[in] dir     Starting directory (or empty, to default to documents directory)
        @param[in] filter  Filter specification such as "Comma Separated Files (*.csv)"
        @param[out] selectedSuffixOut  Pointer to return the suffix (file type) that was selected (or 0).
                    Can be useful when choosing the save file format based on suffix.
       */
      QString getSaveFileName(QWidget *parent=0, const QString &caption=QString(),
                                     const QString &dir=QString(), const QString &filter=QString(),
                                     QString *selectedSuffixOut=0);
  
      /** Get connection type to call object slot in GUI thread with invokeMethod. The call will be blocking.
  
         @returns If called from the GUI thread, return a Qt::DirectConnection.
                  If called from another thread, return a Qt::BlockingQueuedConnection.
      */
      Qt::ConnectionType blockingGUIThreadConnection();
  
      // Determine whether a widget is hidden behind other windows
      bool isObscured(QWidget *w);
  
      // Open debug.log
      void openDebugLogfile();
  
      /** Qt event filter that intercepts ToolTipChange events, and replaces the tooltip with a rich text
        representation if needed. This assures that Qt can word-wrap long tooltip messages.
        Tooltips longer than the provided size threshold (in characters) are wrapped.
       */
      class ToolTipToRichTextFilter : public QObject
      {
          Q_OBJECT
  
      public:
          explicit ToolTipToRichTextFilter(int size_threshold, QObject *parent = 0);
  
      protected:
          bool eventFilter(QObject *obj, QEvent *evt);
  
      private:
          int size_threshold;
      };
  
      bool GetStartOnSystemStartup();
      bool SetStartOnSystemStartup(bool fAutoStart);
  
      /** Save window size and position */
      void saveWindowGeometry(const QString& strSetting, QWidget *parent);
      /** Restore window size and position */
      void restoreWindowGeometry(const QString& strSetting, const QSize &defaultSizeIn, QWidget *parent);
  
      /** Help message for EBanker-Qt, shown with --help. */
      class HelpMessageBox : public QMessageBox
      {
          Q_OBJECT
  
      public:
          HelpMessageBox(QWidget *parent = 0);
  
          /** Show message box or print help message to standard output, based on operating system. */
          void showOrPrint();
  
          /** Print help message to console */
          void printToConsole();
  
      private:
          QString header;
          QString coreOptions;
          QString uiOptions;
      };
  
  } // namespace GUIUtil
  
  #endif // GUIUTIL_H
  