From 39ed87570bdb2f86969d4be821c94b722dc71179 Mon Sep 17 00:00:00 2001
From: Joe Ludwig <joe@valvesoftware.com>
Date: Wed, 26 Jun 2013 15:22:04 -0700
Subject: First version of the SOurce SDK 2013

---
 mp/src/vgui2/vgui_controls/subrectimage.cpp | 212 ++++++++++++++++++++++++++++
 1 file changed, 212 insertions(+)
 create mode 100644 mp/src/vgui2/vgui_controls/subrectimage.cpp

(limited to 'mp/src/vgui2/vgui_controls/subrectimage.cpp')

diff --git a/mp/src/vgui2/vgui_controls/subrectimage.cpp b/mp/src/vgui2/vgui_controls/subrectimage.cpp
new file mode 100644
index 00000000..e7405049
--- /dev/null
+++ b/mp/src/vgui2/vgui_controls/subrectimage.cpp
@@ -0,0 +1,212 @@
+//========= Copyright Valve Corporation, All rights reserved. ============//
+//
+// Purpose: 
+//
+//=============================================================================
+
+#include "vgui_controls/subrectimage.h"
+#include "tier0/dbg.h"
+#include "vgui/ISurface.h"
+#include "vgui_controls/Controls.h"
+
+// NOTE: This has to be the last file included!
+#include "tier0/memdbgon.h"
+
+
+using namespace vgui;
+
+// Officially the invalid texture ID is zero, but -1 is used in many
+// places, and changing it carries some risk. Adding a named constant
+// for this file avoids warnings and makes future changes easier.
+const HTexture SUBRECT_INVALID_TEXTURE = (HTexture)-1;
+
+//-----------------------------------------------------------------------------
+// Constructor, destructor
+//-----------------------------------------------------------------------------
+CSubRectImage::CSubRectImage( const char *filename, bool hardwareFiltered, int subx, int suby, int subw, int subh )
+{
+	SetSize( subw, subh );
+	sub[ 0 ] = subx;
+	sub[ 1 ] = suby;
+	sub[ 2 ] = subw;
+	sub[ 3 ] = subh;
+
+	_filtered = hardwareFiltered;
+	// HACKHACK - force VGUI materials to be in the vgui/ directory
+	//			 This needs to be revisited once GoldSRC is grandfathered off.
+	//!! need to make this work with goldsrc
+	int size = strlen(filename) + 1 + strlen("vgui/");
+	_filename = (char *)malloc( size );
+	Assert( _filename );
+
+	Q_snprintf( _filename, size, "vgui/%s", filename );
+
+	_id = SUBRECT_INVALID_TEXTURE;
+	_uploaded = false;
+	_color = Color(255, 255, 255, 255);
+	_pos[0] = _pos[1] = 0;
+	_valid = true;
+	_wide = subw;
+	_tall = subh;
+	ForceUpload();
+}
+
+CSubRectImage::~CSubRectImage()
+{
+	if ( vgui::surface() && _id != SUBRECT_INVALID_TEXTURE )
+	{
+		vgui::surface()->DestroyTextureID( _id );
+		_id = SUBRECT_INVALID_TEXTURE;
+	}
+
+	if ( _filename )
+	{
+		free( _filename );
+	}
+}
+
+//-----------------------------------------------------------------------------
+// Purpose: data accessor
+//-----------------------------------------------------------------------------
+void CSubRectImage::GetSize(int &wide, int &tall)
+{
+	wide = _wide;
+	tall = _tall;
+}
+
+//-----------------------------------------------------------------------------
+// Purpose: size of the bitmap
+//-----------------------------------------------------------------------------
+void CSubRectImage::GetContentSize(int &wide, int &tall)
+{
+	wide = 0;
+	tall = 0;
+
+	if (!_valid)
+		return;
+
+	if ( _id != SUBRECT_INVALID_TEXTURE )
+	{
+		surface()->DrawGetTextureSize(_id, wide, tall);
+	}
+}
+
+//-----------------------------------------------------------------------------
+// Purpose: ignored
+//-----------------------------------------------------------------------------
+void CSubRectImage::SetSize(int x, int y)
+{
+	_wide = x;
+	_tall = y;
+}
+
+//-----------------------------------------------------------------------------
+// Purpose: data accessor
+//-----------------------------------------------------------------------------
+void CSubRectImage::SetPos(int x, int y)
+{
+	_pos[0] = x;
+	_pos[1] = y;
+}
+
+//-----------------------------------------------------------------------------
+// Purpose: data accessor
+//-----------------------------------------------------------------------------
+void CSubRectImage::SetColor(Color col)
+{
+	_color = col;
+}
+
+//-----------------------------------------------------------------------------
+// Purpose: returns the file name of the bitmap
+//-----------------------------------------------------------------------------
+const char *CSubRectImage::GetName()
+{
+	return _filename;
+}
+
+//-----------------------------------------------------------------------------
+// Purpose: Renders the loaded image, uploading it if necessary
+//			Assumes a valid image is always returned from uploading
+//-----------------------------------------------------------------------------
+void CSubRectImage::Paint()
+{
+	if ( !_valid )
+		return;
+
+	// if we don't have an _id then lets make one
+	if ( _id == SUBRECT_INVALID_TEXTURE )
+	{
+		_id = surface()->CreateNewTextureID();
+	}
+
+	// if we have not uploaded yet, lets go ahead and do so
+	if ( !_uploaded )
+	{
+		ForceUpload();
+	}
+
+	// set the texture current, set the color, and draw the biatch
+	surface()->DrawSetColor( _color[0], _color[1], _color[2], _color[3] );
+	surface()->DrawSetTexture( _id );
+
+	if ( _wide == 0 || _tall == 0 )
+		return;
+
+	int cw, ch;
+	GetContentSize( cw, ch );
+	if ( cw == 0 || ch == 0 )
+		return;
+
+	float s[ 2 ];
+	float t[ 2 ];
+
+	s[ 0 ] = (float)sub[ 0 ] / (float)cw;
+	s[ 1 ] = (float)(sub[ 0 ]+sub[ 2 ]) / (float)cw;
+	t[ 0 ] = (float)sub[ 1 ] / (float)ch;
+	t[ 1 ] = (float)(sub[ 1 ]+sub[ 3 ]) / (float)ch;
+	surface()->DrawTexturedSubRect(
+		_pos[0], 
+		_pos[1], 
+		_pos[0] + _wide, 
+		_pos[1] + _tall,
+		s[ 0 ], 
+		t[ 0 ], 
+		s[ 1 ], 
+		t[ 1 ] );
+}
+
+//-----------------------------------------------------------------------------
+// Purpose: ensures the bitmap has been uploaded
+//-----------------------------------------------------------------------------
+void CSubRectImage::ForceUpload()
+{
+	if ( !_valid || _uploaded )
+		return;
+
+	if ( _id == SUBRECT_INVALID_TEXTURE )
+	{
+		_id = surface()->CreateNewTextureID( false );
+	}
+
+	surface()->DrawSetTextureFile( _id, _filename, _filtered, false );
+
+	_uploaded = true;
+
+	_valid = surface()->IsTextureIDValid( _id );
+}
+
+
+//-----------------------------------------------------------------------------
+// Purpose: data accessor
+//-----------------------------------------------------------------------------
+HTexture CSubRectImage::GetID()
+{
+	return _id;
+}
+
+bool CSubRectImage::IsValid()
+{
+	return _valid;
+}
+
-- 
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