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#pragma once
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#ifndef INTPAIRFIELD_H
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#define INTPAIRFIELD_H
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#include "toonzqt/intfield.h"
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#include "tcommon.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 QSlider;
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class QLabel;
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//=============================================================================
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namespace DVGui {
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//=============================================================================
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/*! \brief The IntPairField class provides to view an object to manage a pair
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                                         of int parameter.
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                Inherits \b QWidget.
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                The object is composed of an horizontal layout \b QHBoxLayout
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   which contains
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                two pair [label, text field] and a slider with two grab, one for
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   each int
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                value to manage. [label, text field] are a \b QLabel and a \b
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   IntLineEdit.
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                Objects are inserted in the following order: a label and
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   respective text field,
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                the slider and the other pair [lebel,text field].
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                Object size width is not fixed, while height is equal to
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   DVGui::WidgetHeight, 20;
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                labels width depend from its text length, text fields has fixed
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   size, while
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                slider width change in according with widget size.
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                Objects contained in this widget are connected, so if you change
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   one value the
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                other automatically change, if it is necessary. You can set
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   current value,
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                getValues(), minimum and max value, getRange(), using
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   setValues(), setRange().
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                To know when one of two int parameter value change class
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   provides a signal,
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                valuesChanged(); class emit signal when a grab slider position
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   change or when
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                editing text field, left or right is finished and current value
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   is changed.
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                Editing text field finished may occur if focus is lost or enter
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   key is pressed.
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                See SLOT: onLeftEditingFinished() and onRightEditingFinished().
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                \b Example:
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                \code
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                        IntPairField* intPairFieldExample = new
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   IntPairField(this);
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                        intPairFieldExample->setLeftText(tr("Left Value:"));
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                        intPairFieldExample->setRightText(tr("Right Value:"));
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                        intPairFieldExample->setRange(0,10);
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                        intPairFieldExample->setValues(std::make_pair(3,8));
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                \endcode
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                \b Result:
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                        \image html DoublePairField.jpg
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*/
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class DVAPI IntPairField : public QWidget {
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  Q_OBJECT
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  QPixmap m_handleLeftPixmap, m_handleRightPixmap, m_handleLeftGrayPixmap,
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      m_handleRightGrayPixmap;
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  Q_PROPERTY(QPixmap HandleLeftPixmap READ getHandleLeftPixmap WRITE
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                 setHandleLeftPixmap);
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  Q_PROPERTY(QPixmap HandleRightPixmap READ getHandleRightPixmap WRITE
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                 setHandleRightPixmap);
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  Q_PROPERTY(QPixmap HandleLeftGrayPixmap READ getHandleLeftGrayPixmap WRITE
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                 setHandleLeftGrayPixmap);
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  Q_PROPERTY(QPixmap HandleRightGrayPixmap READ getHandleRightGrayPixmap WRITE
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                 setHandleRightGrayPixmap);
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  IntLineEdit *m_leftLineEdit;
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  IntLineEdit *m_rightLineEdit;
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  QColor m_lightLineColor; /*-- スライダ溝の明るい色(白) --*/
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  QColor m_darkLineColor; /*-- スライダ溝の暗い色(128,128,128) --*/
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  QColor m_middleLineColor;
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  QColor m_lightLineEdgeColor;
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  Q_PROPERTY(
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      QColor LightLineColor READ getLightLineColor WRITE setLightLineColor);
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  Q_PROPERTY(QColor DarkLineColor READ getDarkLineColor WRITE setDarkLineColor);
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  Q_PROPERTY(
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      QColor MiddleLineColor READ getMiddleLineColor WRITE setMiddleLineColor);
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  Q_PROPERTY(QColor LightLineEdgeColor READ getLightLineEdgeColor WRITE
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                 setLightLineEdgeColor);
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  QLabel *m_leftLabel, *m_rightLabel;
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  std::pair<int, int=""> m_values;</int,>
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  int m_minValue, m_maxValue;
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  int m_grabOffset, m_grabIndex;
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  int m_leftMargin, m_rightMargin;
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  bool m_isMaxRangeLimited;
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  bool m_isLinear;
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public:
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  IntPairField(QWidget *parent = 0, bool isMaxRangeLimited = true);
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  ~IntPairField() {}
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  /*! Set current values to \b values. */
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  void setValues(const std::pair<int, int=""> &values);</int,>
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  /*!	Return a pair containing current values. */
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  std::pair<int, int=""> getValues() const { return m_values; }</int,>
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  /*! Set left label string to \b QString \b text. Recompute left margin adding
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                  label width. */
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  void setLeftText(const QString &text);
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  /*! Set right label string to \b QString \b text. Recompute right margin
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     adding
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                  label width. */
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  void setRightText(const QString &text);
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  void setLabelsEnabled(bool enable);
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  /*! Set range of \b IntPairField to \b minValue, \b maxValue. */
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  void setRange(int minValue, int maxValue);
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  /*! Set \b minValue and \b maxValue to IntPairField range. */
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  void getRange(int &minValue, int &maxValue);
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  QPixmap getHandleLeftPixmap() const { return m_handleLeftPixmap; }
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  void setHandleLeftPixmap(const QPixmap &pixmap) {
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    m_handleLeftPixmap = pixmap;
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  }
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  QPixmap getHandleRightPixmap() const { return m_handleRightPixmap; }
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  void setHandleRightPixmap(const QPixmap &pixmap) {
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    m_handleRightPixmap = pixmap;
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  }
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  QPixmap getHandleLeftGrayPixmap() const { return m_handleLeftGrayPixmap; }
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  void setHandleLeftGrayPixmap(const QPixmap &pixmap) {
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    m_handleLeftGrayPixmap = pixmap;
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  }
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  QPixmap getHandleRightGrayPixmap() const { return m_handleRightGrayPixmap; }
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  void setHandleRightGrayPixmap(const QPixmap &pixmap) {
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    m_handleRightGrayPixmap = pixmap;
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  }
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  void setLightLineColor(const QColor &color) { m_lightLineColor = color; }
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  QColor getLightLineColor() const { return m_lightLineColor; }
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  void setDarkLineColor(const QColor &color) { m_darkLineColor = color; }
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  QColor getDarkLineColor() const { return m_darkLineColor; }
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  void setMiddleLineColor(const QColor &color) { m_middleLineColor = color; }
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  QColor getMiddleLineColor() const { return m_middleLineColor; }
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  void setLightLineEdgeColor(const QColor &color) {
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    m_lightLineEdgeColor = color;
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  }
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  QColor getLightLineEdgeColor() const { return m_lightLineEdgeColor; }
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protected:
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  /*! Return value corresponding \b x position. */
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  int pos2value(int x) const;
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  /*! Return x position corresponding \b value. */
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  int value2pos(int v) const;
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  /*! Set current value to \b value.
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                  Set left or right value, or both, to value depending on
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     current slider
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                  grab edited and \b value. */
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  void setValue(int v);
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  void paintEvent(QPaintEvent *) override;
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  void mousePressEvent(QMouseEvent *event) override;
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  void mouseMoveEvent(QMouseEvent *event) override;
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  void mouseReleaseEvent(QMouseEvent *event) override;
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  void setLinearSlider(bool linear) { m_isLinear = linear; }
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protected slots:
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  /*! Set current left value to value in left text field; if necessary, if left
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                  value is greater than right, change also current right value.
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  \n	This protected slot is called when text editing is finished.
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  \n	Emit valuesChanged().
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  \n	If current left value is equal to left text field value, return and do
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  nothing. */
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  void onLeftEditingFinished();
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  /*! Set current right value to value in right text field; if necessary, if
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  right
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                  value is lower than left, change also current left value.
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  \n	This protected slot is called when text editing is finished.
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  \n	Emit valuesChanged().
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  \n	If current right value is equal to right text field value return and
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  do nothing. */
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  void onRightEditingFinished();
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signals:
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  /*!	This signal is emitted when change one of two IntField value;
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                  if one slider grab position change or if one text field
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     editing is finished. */
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  void valuesChanged(bool isDragging);
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};
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//-----------------------------------------------------------------------------
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}  // namespace DVGui
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//-----------------------------------------------------------------------------
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#endif  // INTPAIRFIELD_H