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//========= Copyright Valve Corporation, All rights reserved. ============//
//
// Purpose:
//
// $NoKeywords: $
//=============================================================================//
#ifndef SCROLLBAR_H
#define SCROLLBAR_H
#ifdef _WIN32
#pragma once
#endif
#include <vgui/VGUI.h>
#include <vgui_controls/Panel.h>
namespace vgui
{
class Button;
class ScrollBarSlider;
//-----------------------------------------------------------------------------
// Purpose: Generic scrollbar
// Uses Buttons & SliderBars for the main functionality
//-----------------------------------------------------------------------------
class ScrollBar : public Panel
{
DECLARE_CLASS_SIMPLE( ScrollBar, Panel );
public:
ScrollBar(Panel *parent, const char *panelName, bool vertical);
// Set the value of the scroll bar slider.
virtual void SetValue(int value);
// Get the value of the scroll bar slider.
virtual int GetValue();
// Set the rangeof numbers the slider can scroll through
virtual void SetRange(int min,int max);
virtual void GetRange(int &min, int &max);
// Set how many lines are displayed at one time
// in the window the scroll bar is attached to.
virtual void SetRangeWindow(int rangeWindow);
// Get how many lines are displayed at one time
// in the window the scroll bar is attached to.
virtual int GetRangeWindow();
// Check if the scrollbar is vertical or horizontal
virtual bool IsVertical();
// Purpose: Check if the slider can move through one or more pixels per
// unit of its range.
virtual bool HasFullRange();
// Setup the indexed scroll bar button with the input params.
virtual void SetButton(Button* button,int index);
// Return the indexed scroll bar button
virtual Button *GetButton(int index);
// Set up the slider.
virtual void SetSlider(ScrollBarSlider* slider);
// Return a pointer to the slider.
virtual ScrollBarSlider *GetSlider();
// Set how far the scroll bar slider moves
// when a scroll bar button is pressed
virtual void SetButtonPressedScrollValue(int value);
virtual void Validate();
// Update and look for clicks when mouse is in the scroll bar window.
virtual void OnMouseFocusTicked();
// Set the slider's Paint border enabled.
virtual void SetPaintBorderEnabled(bool state);
// Set the slider's Paint background enabled.
virtual void SetPaintBackgroundEnabled(bool state);
// Set the slider's Paint enabled.
virtual void SetPaintEnabled(bool state);
// Sets the scrollbar buttons visible or not
virtual void SetScrollbarButtonsVisible(bool visible);
void SetAutohideButtons( bool bAutohide ) { m_bAutoHideButtons = bAutohide; }
void UseImages( const char *pszUpArrow, const char *pszDownArrow, const char *pszLine, const char *pszBox );
/* MESSAGES SENT:
"ScrollBarSliderMoved"
"position" - new value of the slider
*/
void SetOverriddenButtons( Button *pB1, Button *pB2 ) { m_pOverriddenButtons[0] = pB1; m_pOverriddenButtons[1] = pB2; }
virtual void ApplySettings( KeyValues *pInResourceData );
protected:
virtual void PerformLayout();
virtual void SendSliderMoveMessage(int value);
virtual void ApplySchemeSettings(IScheme *pScheme);
virtual void OnSizeChanged(int wide, int tall);
MESSAGE_FUNC_INT( OnSliderMoved, "ScrollBarSliderMoved", position );
virtual void RespondToScrollArrow(int const direction);
virtual void UpdateButtonsForImages( void );
virtual void UpdateSliderImages( void );
Button *GetDepressedButton( int iIndex );
private:
Button* _button[2];
ScrollBarSlider* _slider;
int _buttonPressedScrollValue;
int _scrollDelay; // used to control delays in scrolling
bool _respond;
bool m_bNoButtons;
CPanelAnimationVar( bool, m_bAutoHideButtons, "autohide_buttons", "0" );
vgui::ImagePanel *m_pUpArrow;
vgui::ImagePanel *m_pLine;
vgui::ImagePanel *m_pDownArrow;
vgui::ImagePanel *m_pBox;
Button *m_pOverriddenButtons[2];
};
}
#endif // SCROLLBAR_H
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