initial

game/client/cstrike15/gameui/bitmapimagepanel.cpp

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+//========= Copyright <20> 1996-2005, Valve Corporation, All rights reserved. ============//
+//
+// Purpose: 
+//
+// $NoKeywords: $
+//=============================================================================//
+
+#include "bitmapimagepanel.h"
+#include <vgui/ISurface.h>
+
+// memdbgon must be the last include file in a .cpp file!!!
+#include "tier0/memdbgon.h"
+
+using namespace vgui;
+
+CBitmapImagePanel::CBitmapImagePanel( Panel *parent, char const *panelName, 
+	char const *filename /*= NULL*/ ) : Panel( parent, panelName )
+{
+	m_szTexture[ 0 ] = 0;
+	m_bUploaded = false;
+	m_nTextureId = -1;
+
+	SetBounds( 0, 0, 100, 100 );
+
+	if ( filename && filename[ 0 ] )
+	{
+		Q_strncpy( m_szTexture, filename, sizeof( m_szTexture ) );
+	}
+}
+
+void CBitmapImagePanel::PaintBackground()
+{
+	if (!m_szTexture[0])
+		return;
+
+	if ( !m_bUploaded )
+		forceUpload();
+
+	int w, h;
+	GetSize( w, h );
+	surface()->DrawSetColor( Color( 255, 255, 255, 255 ) );
+	surface()->DrawSetTexture( m_nTextureId );
+	surface()->DrawTexturedRect( 0, 0, w, h );
+}
+
+void CBitmapImagePanel::setTexture( char const *filename )
+{
+	Q_strncpy( m_szTexture, filename, sizeof( m_szTexture ) );
+
+	if ( m_bUploaded )
+	{
+		forceReload();
+	}
+	else
+	{
+		forceUpload();
+	}
+}
+
+void CBitmapImagePanel::forceUpload()
+{
+	if ( !m_szTexture[ 0 ] )
+		return;
+
+	m_bUploaded = true;
+
+	m_nTextureId = surface()->CreateNewTextureID();
+	surface()->DrawSetTextureFile( m_nTextureId, m_szTexture, false, true);
+}
+
+void CBitmapImagePanel::forceReload( void )
+{
+	if ( !m_bUploaded )
+		return;
+
+	// Force texture to re-upload to video card
+	surface()->DrawSetTextureFile( m_nTextureId, m_szTexture, false, true);
+}