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game/client/cstrike15/gameui/cvarnegatecheckbutton.cpp

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+//========= Copyright <20> 1996-2005, Valve Corporation, All rights reserved. ============//
+//
+// Purpose: 
+//
+// $NoKeywords: $
+//
+//=============================================================================//
+#include "cvarnegatecheckbutton.h"
+#include "engineinterface.h"
+#include <vgui/IVGui.h>
+#include "IGameUIFuncs.h"
+#include "tier1/keyvalues.h"
+#include "tier1/convar.h"
+
+// memdbgon must be the last include file in a .cpp file!!!
+#include <tier0/memdbgon.h>
+
+using namespace vgui;
+
+CCvarNegateCheckButton::CCvarNegateCheckButton( Panel *parent, const char *panelName, const char *text, 
+	const char *cvarname )
+ : CheckButton( parent, panelName, text )
+{
+	m_pszCvarName = cvarname ? strdup( cvarname ) : NULL;
+	Reset();
+	AddActionSignalTarget( this );
+}
+
+CCvarNegateCheckButton::~CCvarNegateCheckButton()
+{
+	free( m_pszCvarName );
+}
+
+//-----------------------------------------------------------------------------
+// Purpose: 
+//-----------------------------------------------------------------------------
+void CCvarNegateCheckButton::Paint()
+{
+	if ( !m_pszCvarName )
+	{
+		BaseClass::Paint();
+		return;
+	}
+
+	// Look up current value
+//	float value = engine->pfnGetCvarFloat( m_pszCvarName );
+	ConVarRef var( m_pszCvarName );
+	if ( !var.IsValid() )
+		return;
+
+	float value = var.GetFloat();
+		
+	if ( value < 0 )
+	{
+		if ( !m_bStartState )
+		{
+			SetSelected( true );
+			m_bStartState = true;
+		}
+	}
+	else
+	{
+		if ( m_bStartState )
+		{
+			SetSelected( false );
+			m_bStartState = false;
+		}
+	}
+	BaseClass::Paint();
+}
+
+void CCvarNegateCheckButton::Reset()
+{
+	// Look up current value
+//	float value = engine->pfnGetCvarFloat( m_pszCvarName );
+	ConVarRef var( m_pszCvarName );
+	if ( !var.IsValid() )
+		return;
+
+	float value = var.GetFloat();
+		
+	if ( value < 0 )
+	{
+		m_bStartState = true;
+	}
+	else
+	{
+		m_bStartState = false;
+	}
+	SetSelected(m_bStartState);
+}
+
+bool CCvarNegateCheckButton::HasBeenModified()
+{
+	return IsSelected() != m_bStartState;
+}
+
+//-----------------------------------------------------------------------------
+// Purpose: 
+// Input  : *panel - 
+//-----------------------------------------------------------------------------
+void CCvarNegateCheckButton::SetSelected( bool state )
+{
+	BaseClass::SetSelected( state );
+}
+
+void CCvarNegateCheckButton::ApplyChanges()
+{
+	if ( !m_pszCvarName || !m_pszCvarName[ 0 ] ) 
+		return;
+
+	ConVarRef var( m_pszCvarName );
+	float value = var.GetFloat();
+	
+	value = (float)fabs( value );
+	if (value < 0.00001)
+	{
+		// correct the value if it's not set
+		value = 0.022f;
+	}
+
+	m_bStartState = IsSelected();
+	value = -value;
+
+	float ans = m_bStartState ? value : -value;
+	var.SetValue( ans );
+}
+
+
+void CCvarNegateCheckButton::OnButtonChecked()
+{
+	if (HasBeenModified())
+	{
+		PostActionSignal(new KeyValues("ControlModified"));
+	}
+}