src/qt/bitcoinamountfield.h

   1 #ifndef BITCOINFIELD_H
   2 #define BITCOINFIELD_H
   3
   4 #include <QWidget>
   5
   6 QT_BEGIN_NAMESPACE
   7 class QDoubleSpinBox;
   8 class QValueComboBox;
   9 QT_END_NAMESPACE
  10
  11 /** Widget for entering bitcoin amounts.
  12   */
  13 class BitcoinAmountField: public QWidget
  14 {
  15     Q_OBJECT
  16     Q_PROPERTY(qint64 value READ value WRITE setValue NOTIFY textChanged USER true)
  17 public:
  18     explicit BitcoinAmountField(QWidget *parent = 0);
  19
  20     qint64 value(bool *valid=0) const;
  21     void setValue(qint64 value);
  22
  23     /** Mark current value as invalid in UI. */
  24     void setValid(bool valid);
  25     /** Perform input validation, mark field as invalid if entered value is not valid. */
  26     bool validate();
  27
  28     /** Change unit used to display amount. */
  29     void setDisplayUnit(int unit);
  30
  31     /** Make field empty and ready for new input. */
  32     void clear();
  33
  34     /** Qt messes up the tab chain by default in some cases (issue https://bugreports.qt-project.org/browse/QTBUG-10907),
  35         in these cases we have to set it up manually.
  36     */
  37     QWidget *setupTabChain(QWidget *prev);
  38
  39 signals:
  40     void textChanged();
  41
  42 protected:
  43     /** Intercept focus-in event and ',' key presses */
  44     bool eventFilter(QObject *object, QEvent *event);
  45
  46 private:
  47     QDoubleSpinBox *amount;
  48     QValueComboBox *unit;
  49     int currentUnit;
  50
  51     void setText(const QString &text);
  52     QString text() const;
  53
  54 private slots:
  55     void unitChanged(int idx);
  56
  57 };
  58
  59
  60 #endif // BITCOINFIELD_H