Team Fortress 2 Source Code as on 22/4/2020
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//========= Copyright Valve Corporation, All rights reserved. ============//
//
// Purpose:
//
// $NoKeywords: $
//=============================================================================//
#ifndef SLIDER_H
#define SLIDER_H
#ifdef _WIN32
#pragma once
#endif
#include <vgui/VGUI.h>
#include <vgui_controls/Panel.h>
namespace vgui
{
//-----------------------------------------------------------------------------
// Labeled horizontal slider
//-----------------------------------------------------------------------------
class Slider : public Panel
{
DECLARE_CLASS_SIMPLE( Slider, Panel );
public:
Slider(Panel *parent, const char *panelName);
// 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;
};
}
#endif // SLIDER_H