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vgui2/matsys_controls/tgapreviewpanel.cpp

@@ -0,0 +1,72 @@
+//========= Copyright Valve Corporation, All rights reserved. ============//
+//
+// Purpose: 
+//
+//===========================================================================//
+
+#include "matsys_controls/tgapreviewpanel.h"
+#include "bitmap/tgaloader.h"
+#include "tier1/utlbuffer.h"
+#include "filesystem.h"
+
+using namespace vgui;
+
+
+//-----------------------------------------------------------------------------
+//
+// TGA Preview panel
+//
+//-----------------------------------------------------------------------------
+
+
+//-----------------------------------------------------------------------------
+// constructor
+//-----------------------------------------------------------------------------
+CTGAPreviewPanel::CTGAPreviewPanel( vgui::Panel *pParent, const char *pName ) :
+	BaseClass( pParent, pName )
+{
+}
+
+
+//-----------------------------------------------------------------------------
+// Sets the current TGA
+//-----------------------------------------------------------------------------
+void CTGAPreviewPanel::SetTGA( const char *pFullPath )
+{
+	int nWidth, nHeight;
+	ImageFormat format;
+	float flGamma;
+
+	CUtlBuffer buf;
+	if ( !g_pFullFileSystem->ReadFile( pFullPath, NULL, buf ) )
+	{
+		Warning( "Can't open TGA file: %s\n", pFullPath );
+		return;
+	}
+
+	TGALoader::GetInfo( buf, &nWidth, &nHeight, &format, &flGamma );
+
+	Shutdown();
+	Init( nWidth, nHeight, true );
+	m_TGAName = pFullPath;
+
+	buf.SeekGet( CUtlBuffer::SEEK_HEAD, 0 );
+	if ( !TGALoader::Load( (unsigned char*)GetImageBuffer(), buf, 
+		  nWidth, nHeight, IMAGE_FORMAT_BGRA8888, flGamma, false ) )
+	{
+		Shutdown();
+	}
+	else
+	{
+		DownloadTexture();
+	}
+}
+
+
+//-----------------------------------------------------------------------------
+// Gets the current TGA
+//-----------------------------------------------------------------------------
+const char *CTGAPreviewPanel::GetTGA() const
+{
+	return m_TGAName;
+}