{

DECLARE_CLASS_SIMPLE( Slider, Panel );

public:

Slider(Panel *parent, const char *panelName);

virtual ~Slider() {}

// interface

virtual void SetValue(int value, bool bTriggerChangeMessage = true);

virtual int GetValue();

virtual void SetRange(int min, int max); // set to max and min range of rows to display

virtual void GetRange(int &min, int &max);

virtual void GetNobPos(int &min, int &max); // get current Slider position

virtual void SetButtonOffset(int buttonOffset);

virtual void OnCursorMoved(int x, int y);

virtual void OnMousePressed(MouseCode code);

virtual void OnMouseDoublePressed(MouseCode code);

virtual void OnMouseReleased(MouseCode code);

virtual void SetTickCaptions(const wchar_t *left, const wchar_t *right);

virtual void SetTickCaptions(const char *left, const char *right);

virtual void SetNumTicks(int ticks);

virtual void SetThumbWidth( int width );

virtual int EstimateValueAtPos( int localMouseX, int localMouseY );

virtual void SetInverted( bool bInverted );

// If you click on the slider outside of the nob, the nob jumps

// to the click position, and if this setting is enabled, the nob

// is then draggable from the new position until the mouse is released

virtual void SetDragOnRepositionNob( bool state );

virtual bool IsDragOnRepositionNob() const;

// Get if the slider nob is being dragged by user, usually the application

// should refuse from forcefully setting slider value if it is being dragged

// by user since the next frame the nob will pop back to mouse position

virtual bool IsDragged( void ) const;

// This allows the slider to behave like it's larger than what's actually being drawn

virtual void SetSliderThumbSubRange( bool bEnable, int nMin = 0, int nMax = 100 );

protected:

virtual void OnSizeChanged(int wide, int tall);

virtual void Paint();

virtual void PaintBackground();

virtual void PerformLayout();

virtual void ApplySchemeSettings(IScheme *pScheme);

virtual void GetSettings(KeyValues *outResourceData);

virtual void ApplySettings(KeyValues *inResourceData);

virtual const char *GetDescription();

#ifdef _X360

virtual void OnKeyCodePressed(KeyCode code);

#endif

virtual void OnKeyCodeTyped(KeyCode code);

virtual void DrawNob();

virtual void DrawTicks();

virtual void DrawTickLabels();

virtual void GetTrackRect( int &x, int &y, int &w, int &h );

protected:

virtual void RecomputeNobPosFromValue();

virtual void RecomputeValueFromNobPos();

virtual void SendSliderMovedMessage();

virtual void SendSliderDragStartMessage();

virtual void SendSliderDragEndMessage();

void ClampRange();

bool _dragging;

int _nobPos[2];

int _nobDragStartPos[2];

int _dragStartPos[2];

int _range[2];

int _subrange[ 2 ];

int _value; // the position of the Slider, in coordinates as specified by SetRange/SetRangeWindow

int _buttonOffset;

IBorder *_sliderBorder;

IBorder *_insetBorder;

float _nobSize;

TextImage *_leftCaption;

TextImage *_rightCaption;

Color m_TickColor;

Color m_TrackColor;

Color m_DisabledTextColor1;

Color m_DisabledTextColor2;

#ifdef _X360

Color m_DepressedBgColor;

#endif

int m_nNumTicks;

bool m_bIsDragOnRepositionNob : 1;

bool m_bUseSubRange : 1;

bool m_bInverted : 1;