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#pragma once
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#ifndef DOUBLEFIELD_H
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#define DOUBLEFIELD_H
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#include "tcommon.h"
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#include "toonzqt/intfield.h"
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#undef DVAPI
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#undef DVVAR
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#ifdef TOONZQT_EXPORTS
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#define DVAPI DV_EXPORT_API
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#define DVVAR DV_EXPORT_VAR
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#else
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#define DVAPI DV_IMPORT_API
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#define DVVAR DV_IMPORT_VAR
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#endif
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// forward declaration
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class QDoubleValidator;
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class QSlider;
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class TMeasuredValue;
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//=============================================================================
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namespace DVGui {
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//=============================================================================
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/*! \brief The DoubleValueLineEdit is abstract class.
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                Inherits \b LineEdit.
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*/
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class DVAPI DoubleValueLineEdit : public LineEdit {
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  Q_OBJECT
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public:
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  DoubleValueLineEdit(QWidget *parent = 0) : LineEdit(parent) {}
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  ~DoubleValueLineEdit() {}
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  virtual void setValue(double value) = 0;
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  virtual double getValue()           = 0;
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  virtual void setRange(double minValue, double maxValue)   = 0;
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  virtual void getRange(double &minValue, double &maxValue) = 0;
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  virtual int getDecimals() { return 2; }
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protected:
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  /*! If focus is lost and current value is out of range emit signal \b
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   * lostFocus. */
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  void focusOutEvent(QFocusEvent *) override;
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signals:
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  /*! To emit when value change. */
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  void valueChanged();
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};
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//=============================================================================
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/*! \brief The DoubleValueField class provides to view an object to manage a
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                                         generic double parameter, with two
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cipher after decimal point.
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                Inherits \b QWidget.
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                The class is composed of an horizontal layout which contains two
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object,
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                \li a vertical layout with a text field \b PrimaryDoubleLineEdit
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and a roller
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                \li an horizontal slider QSlider.
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                This objects are connected, so if you change one the other
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automatically change.
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                It's possible to set current value getValue(), minimum and max
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value, getRange(),
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                using setValue(), setRange() or setValues(); by default value =
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0, minimum
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                value = -100.0 and maximum value = 100.0.
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\n	Maximum height object is fixed to \b DVGui::WidgetHeight, while width
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depend
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                on parent width.
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                To know when double parameter value change class provides a
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signal, valueChanged();
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                class emit signal when slider value change or when editing text
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field is
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                finished and current value is changed. Editing text field
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finished may occur
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                if focus is lost or enter key is pressed. See SLOT:
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onSliderChanged(int value),
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                onEditingFinished().
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*/
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class DVAPI DoubleValueField : public QWidget {
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  Q_OBJECT
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protected:
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  RollerField *m_roller;
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  DoubleValueLineEdit *m_lineEdit;
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  QSlider *m_slider;
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  QWidget *m_spaceWidget;
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public:
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  DoubleValueField(QWidget *parent, DoubleValueLineEdit *lineEdit);
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  ~DoubleValueField() {}
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  void getRange(double &minValue, double &maxValue);
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  void setRange(double minValue = 0, double maxValue = 0);
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  void setValue(double value);
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  double getValue();
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  /*! This is provided for convenience.
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                  Set to \b value current value DoubleField; set to \b minValue
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     and \b maxValue
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                  slider and text field range.
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                  \sa getValue() */
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  void setValues(double value, double minValue = 0, double maxValue = 0);
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  /*! If \b enable is false set slider disable and hide it. */
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  void enableSlider(bool enable);
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  bool isSliderEnabled();
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  /*! If \b enable is false set roller disable and hide it. */
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  void enableRoller(bool enable);
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  bool isRollerEnabled();
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protected slots:
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  /*! Set to value the text field and roller. If text field value is different
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     from \b value
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                  emit signal valueChanged(int value). */
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  void onSliderChanged(int value);
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  void onSliderReleased() { emit valueChanged(false); }
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  /*! Set slider and roller value to current value in text field.
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                  This protected slot is called when text editing is finished.
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                  If slider value is different from text field value emit signal
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     valueChanged(). */
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  void onLineEditValueChanged();
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  /*! Set text field and slider to roller current value.
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  \n	If slider and text field value are different from roller value
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                  emit signal valueChanged(). */
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  void onRollerValueChanged(bool isDragging);
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signals:
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  /*!	This signal is emitted when DoubleFiel, slider, roller or text field,
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     value change;
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                  if slider position change or text field editing is finished.
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                  \sa onEditingFinished() and onSliderChanged(int value). */
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  void valueChanged(bool);
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  /*! This signal is emitted only when users edited the value by hand
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*/
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  void valueEditedByHand();
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};
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//=============================================================================
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/*! \brief The DoubleLineEdit class provides to view an object to manage a
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   double field.
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                Inherits \b LineEdit, set a double validator \b
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   QDoubleValidator.
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                You can pass to constructor current value, getValue(), minimum
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   and max value
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                field, getRange(), and number of decimals, getDecimals() or you
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   can set this
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                value using setValue(), setRange() and setDecimals().
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*/
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class DVAPI DoubleLineEdit : public DoubleValueLineEdit {
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  Q_OBJECT
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  QDoubleValidator *m_validator;
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public:
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  DoubleLineEdit(QWidget *parent = 0, double value = 1);
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  ~DoubleLineEdit() {}
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  /*! Set text field value to double value \b value. */
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  void setValue(double value) override;
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  /*! Return a double with field value. */
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  double getValue() override;
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  /*! Set the range of field from \b minValue to \b maxValue;
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                  set validator value. */
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  void setRange(double minValue, double maxValue) override;
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  /*! Set \b minValue an \b maxValue to current range; to current
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                  validator minimum and maximum value. */
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  void getRange(double &minValue, double &maxValue) override;
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  /*! Set lenght of field value decimal part to \b decimals. */
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  void setDecimals(int decimals);
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  /*! Return lenght of field value decimal part. */
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  int getDecimals() override;
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};
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//=============================================================================
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/*! \brief The DoubleField class provides a DoubleValueField with a
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   DoubleLineEdit.
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                Inherits \b DoubleValueField.
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*/
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class DVAPI DoubleField : public DoubleValueField {
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public:
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  DoubleField(QWidget *parent = 0, bool isRollerHide = true, int decimals = 2);
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  ~DoubleField() {}
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};
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//=============================================================================
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/*! \brief The MeasuredDoubleLineEdit class provides to view an object to manage
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            a double lineEdit with its misure.
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*/
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class DVAPI MeasuredDoubleLineEdit : public DoubleValueLineEdit {
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  Q_OBJECT
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  TMeasuredValue *m_value;
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  double m_minValue;
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  double m_maxValue;
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  bool m_modified;
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  double m_errorHighlighting;
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  int m_errorHighlightingTimerId;
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  int m_decimals;
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public:
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  MeasuredDoubleLineEdit(QWidget *parent = 0);
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  ~MeasuredDoubleLineEdit();
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  void setValue(double value) override;
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  double getValue() override;
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  void setRange(double minValue, double maxValue) override;
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  void getRange(double &minValue, double &maxValue) override;
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  void setMeasure(std::string measureName);
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  void setDecimals(int decimals);
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  int getDecimals() override;
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  // called after setText()
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  void postSetText() { onEditingFinished(); }
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private:
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  void valueToText();
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protected:
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  void timerEvent(QTimerEvent *e) override;
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protected slots:
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  void onEditingFinished();
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  void onTextChanged(const QString &);
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};
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//=============================================================================
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/*! \brief The MeasuredDoubleField class provides a DoubleValueField with a
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   ValueLineEdit.
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                Inherits \b PrimaryDoubleField.
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*/
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class DVAPI MeasuredDoubleField : public DoubleValueField {
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  Q_OBJECT
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public:
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  MeasuredDoubleField(QWidget *parent = 0, bool isRollerHide = true);
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  ~MeasuredDoubleField() {}
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  void setMeasure(std::string measureName);
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  void setDecimals(int decimals);
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};
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//-----------------------------------------------------------------------------
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}  // namespace DVGui
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//-----------------------------------------------------------------------------
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#endif  // DOUBLEFIELD_H