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game/client/vgui_bitmapbutton.cpp

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+//========= Copyright Valve Corporation, All rights reserved. ============//
+//
+// Purpose: This is a panel which is rendered image on top of an entity
+//
+// $Revision: $
+// $NoKeywords: $
+//=============================================================================//
+#include "cbase.h"
+#pragma warning (disable: 4514)
+
+#include "vgui_bitmapimage.h"
+#include "vgui_bitmapbutton.h"
+#include <KeyValues.h>
+
+// memdbgon must be the last include file in a .cpp file!!!
+#include "tier0/memdbgon.h"
+
+//-----------------------------------------------------------------------------
+// Constructor
+//-----------------------------------------------------------------------------
+CBitmapButton::CBitmapButton( vgui::Panel *pParent, const char *pName, const char *pText ) : 
+	BaseClass( pParent, pName, pText )
+{
+	SetPaintBackgroundEnabled( false );
+	for ( int i = 0; i < BUTTON_STATE_COUNT; ++i )
+	{
+		m_bImageLoaded[i] = false;
+	}
+}
+
+CBitmapButton::~CBitmapButton()
+{
+}
+
+
+//-----------------------------------------------------------------------------
+// initialization
+//-----------------------------------------------------------------------------
+bool CBitmapButton::Init( KeyValues* pInitData )
+{
+	// Unimplemented
+	Assert( 0 );
+	return true;
+}
+
+
+//-----------------------------------------------------------------------------
+// initialization from build-mode dialog style .res files
+//-----------------------------------------------------------------------------
+void CBitmapButton::ApplySettings(KeyValues *pInitData)
+{
+	BaseClass::ApplySettings(pInitData);
+
+	COMPILE_TIME_ASSERT( BUTTON_STATE_COUNT == 4 );
+	const char *pSectionName[BUTTON_STATE_COUNT] = 
+	{
+		"enabledImage",
+		"mouseOverImage",
+		"pressedImage",
+		"disabledImage"
+	};
+
+	for ( int i = 0; i < BUTTON_STATE_COUNT; ++i )
+	{
+		m_bImageLoaded[i] = InitializeImage(pInitData, pSectionName[i], this, &m_pImage[i] );
+	}
+}
+
+
+//-----------------------------------------------------------------------------
+// Sets the image
+//-----------------------------------------------------------------------------
+void CBitmapButton::SetImage( ButtonImageType_t type, const char *pMaterialName, color32 color )
+{
+	m_bImageLoaded[type] = m_pImage[type].Init( GetVPanel(), pMaterialName );
+	if (m_bImageLoaded[type])
+	{
+		Color vcol( color.r, color.g, color.b, color.a );
+		m_pImage[type].SetColor( vcol );
+	}
+}
+
+bool CBitmapButton::IsImageLoaded( ButtonImageType_t type ) const
+{
+	return m_bImageLoaded[type];
+}
+
+
+//-----------------------------------------------------------------------------
+// Draws the puppy
+//-----------------------------------------------------------------------------
+void CBitmapButton::Paint( void )
+{
+	// Determine the image to use based on the state
+	int nCurrentImage = BUTTON_ENABLED;
+	if (IsArmed())
+	{
+		if (IsDepressed())
+		{
+			nCurrentImage = BUTTON_PRESSED;
+		}
+		else
+		{
+			nCurrentImage = BUTTON_ENABLED_MOUSE_OVER;
+		}
+	}
+	else if (!IsEnabled())
+	{
+		nCurrentImage = BUTTON_DISABLED;
+	}
+
+	if (m_bImageLoaded[nCurrentImage])
+	{
+		m_pImage[nCurrentImage].DoPaint( GetVPanel() );
+	}
+
+	BaseClass::Paint();
+}
+
+