Initial Commit

2018-02-08 21:28:33 -05:00
commit 678c1d3966
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+#ifndef LIVE_FREQUENCY_VALIDATOR_HPP__
+#define LIVE_FREQUENCY_VALIDATOR_HPP__
+
+#include <QObject>
+#include <QRegExpValidator>
+
+#include "Radio.hpp"
+
+class Bands;
+class FrequencyList;
+class QComboBox;
+class QWidget;
+
+//
+// Class LiveFrequencyValidator
+//
+//	QLineEdit validator that controls input to an editable
+//	QComboBox where the user can enter a valid band or a valid
+//	frequency in megahetz.
+//
+// Collabrations
+//
+//	Implements the QRegExpValidator interface. Validates input
+//	from the supplied QComboBox as either a valid frequency in
+//	megahertz or a valid band as defined by the supplied column of
+//	the supplied QAbstractItemModel.
+//
+class LiveFrequencyValidator final
+  : public QRegExpValidator
+{
+  Q_OBJECT;
+
+public:
+  using Frequency = Radio::Frequency;
+
+  LiveFrequencyValidator (QComboBox * combo_box // associated combo box
+                          , Bands const * bands // bands model
+                          , FrequencyList const * frequencies // working
+                                                              // frequencies
+                                                              // model
+                          , Frequency const * nominal_frequency
+                          , QWidget * parent = nullptr);
+
+  State validate (QString& input, int& pos) const override;
+  void fixup (QString& input) const override;
+
+  Q_SIGNAL void valid (Frequency) const;
+
+private:
+  Bands const * bands_;
+  FrequencyList const * frequencies_;
+  Frequency const * nominal_frequency_;
+  QComboBox * combo_box_;
+};
+
+#endif