/*==LICENSE==*

CyanWorlds.com Engine - MMOG client, server and tools
Copyright (C) 2011 Cyan Worlds, Inc.

This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.

Additional permissions under GNU GPL version 3 section 7

If you modify this Program, or any covered work, by linking or
combining it with any of RAD Game Tools Bink SDK, Autodesk 3ds Max SDK,
NVIDIA PhysX SDK, Microsoft DirectX SDK, OpenSSL library, Independent
JPEG Group JPEG library, Microsoft Windows Media SDK, or Apple QuickTime SDK
(or a modified version of those libraries),
containing parts covered by the terms of the Bink SDK EULA, 3ds Max EULA,
PhysX SDK EULA, DirectX SDK EULA, OpenSSL and SSLeay licenses, IJG
JPEG Library README, Windows Media SDK EULA, or QuickTime SDK EULA, the
licensors of this Program grant you additional
permission to convey the resulting work. Corresponding Source for a
non-source form of such a combination shall include the source code for
the parts of OpenSSL and IJG JPEG Library used as well as that of the covered
work.

You can contact Cyan Worlds, Inc. by email legal@cyan.com
 or by snail mail at:
      Cyan Worlds, Inc.
      14617 N Newport Hwy
      Mead, WA   99021

*==LICENSE==*/
//////////////////////////////////////////////////////////////////////////////
//																			//
//	plDebugText and plDebugTextManager Functions							//
//																			//
//////////////////////////////////////////////////////////////////////////////

#include "plPipeline.h"
#include "plDebugText.h"
#include "plTextFont.h"

//////////////////////////////////////////////////////////////////////////////
//// plDebugText Functions ///////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////

plDebugText	plDebugText::fInstance;

//// DrawString //////////////////////////////////////////////////////////////

void	plDebugText::DrawString( UInt16 x, UInt16 y, const char *string, UInt32 hexColor, UInt8 style )
{
	if( IsEnabled() && fManager && string != nil && string[ 0 ] != 0 )
		fManager->AddString( x, y, string, hexColor, style, fDrawOnTopMode );
}

//// CalcStringWidth /////////////////////////////////////////////////////////

UInt32	plDebugText::CalcStringWidth( const char *string )
{
	if( IsEnabled() && fManager && string )
		return fManager->CalcStringWidth( string );

	return 0;
}

//// DrawRect ////////////////////////////////////////////////////////////////
//	TEMPORARY function to draw a flat-shaded 2D rectangle to the screen. Used
//	to create a background for our console; will be obliterated once we figure
//	a better way to do so.

void	plDebugText::DrawRect( UInt16 left, UInt16 top, UInt16 right, UInt16 bottom, UInt32 hexColor )
{
	if( IsEnabled() && fManager )
		fManager->DrawRect( left, top, right, bottom, hexColor, fDrawOnTopMode );
}

//// Draw3DBorder ////////////////////////////////////////////////////////////

void	plDebugText::Draw3DBorder( UInt16 left, UInt16 top, UInt16 right, UInt16 bottom, UInt32 hexColor1, UInt32 hexColor2 )
{
	if( IsEnabled() && fManager )
		fManager->Draw3DBorder( left, top, right, bottom, hexColor1, hexColor2, fDrawOnTopMode );
}

//// GetScreenSize ///////////////////////////////////////////////////////////

void	plDebugText::GetScreenSize( UInt32 *width, UInt32 *height )
{
	if( fManager )
		fManager->GetScreenSize( width, height );
}

UInt16 plDebugText::GetFontHeight()
{
	if (fManager)
		return fManager->GetFontHeight();
	return 0;
}

//////////////////////////////////////////////////////////////////////////////
//// plDebugTextManager Functions ////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////

//// plDebugTextNode Constructor /////////////////////////////////////////////

plDebugTextManager::plDebugTextNode::plDebugTextNode( const char *s, UInt32 c, UInt16 x, UInt16 y, UInt8 style )
{
	HSMemory::Clear( fText, sizeof( fText ) );
	strncpy( fText, s, sizeof( fText ) - 1 );
	fColor = c;
	fX = x;
	fY = y;
	fStyle = style;
}

plDebugTextManager::plDebugTextNode::plDebugTextNode( UInt16 left, UInt16 top, UInt16 right, UInt16 bottom, UInt32 c )
{
	memset( fText, 0, sizeof( fText ) );
	fColor = c;
	fX = left;
	fY = top;
	fRight = right;
	fBottom = bottom;
	fStyle = 0xff;
}

plDebugTextManager::plDebugTextNode::plDebugTextNode( UInt16 left, UInt16 top, UInt16 right, UInt16 bottom, UInt32 c1, UInt32 c2 )
{
	memset( fText, 0, sizeof( fText ) );
	fColor = c1;
	fDarkColor = c2;
	fX = left;
	fY = top;
	fRight = right;
	fBottom = bottom;
	fStyle = 0xfe;
}

//// plDebugTextManager destructor ///////////////////////////////////////////

plDebugTextManager::~plDebugTextManager()
{
	if( fFont != nil )
		delete fFont;
}

//// AddString ///////////////////////////////////////////////////////////////

void	plDebugTextManager::AddString( UInt16 x, UInt16 y, const char *s, UInt32 hexColor, UInt8 style, hsBool drawOnTop )
{
	if( drawOnTop )
		fDrawOnTopList.Append( plDebugTextNode( s, hexColor, x, y, style ) );
	else
		fList.Append( plDebugTextNode( s, hexColor, x, y, style ) );
}

//// DrawRect ////////////////////////////////////////////////////////////////
//	TEMPORARY function to draw a flat-shaded 2D rectangle to the screen. Used
//	to create a background for our console; will be obliterated once we figure
//	a better way to do so.

void	plDebugTextManager::DrawRect( UInt16 left, UInt16 top, UInt16 right, UInt16 bottom, UInt32 hexColor, hsBool drawOnTop )
{
	if( drawOnTop )
		fDrawOnTopList.Append( plDebugTextNode( left, top, right, bottom, hexColor ) );
	else
		fList.Append( plDebugTextNode( left, top, right, bottom, hexColor ) );
}

//// Draw3DBorder ////////////////////////////////////////////////////////////

void	plDebugTextManager::Draw3DBorder( UInt16 left, UInt16 top, UInt16 right, UInt16 bottom, UInt32 hexColor1, UInt32 hexColor2, hsBool drawOnTop )
{
	if( drawOnTop )
		fDrawOnTopList.Append( plDebugTextNode( left, top, right, bottom, hexColor1, hexColor2 ) );
	else
		fList.Append( plDebugTextNode( left, top, right, bottom, hexColor1, hexColor2 ) );
}

//// DrawToDevice ////////////////////////////////////////////////////////////

void	plDebugTextManager::DrawToDevice( plPipeline *pipe )
{
	int							i, j;
	hsTArray<plDebugTextNode>	*list;


	if( fList.GetCount() == 0 && fDrawOnTopList.GetCount() == 0 )
	{
		return;
	}

	if( fFont == nil )
	{
		// Create font first time around
		fFont = pipe->MakeTextFont( (char *)plDebugText::Instance().GetFontFace(), 
										plDebugText::Instance().GetFontSize() );

		if( fFont == nil )
		{
			plDebugText::Instance().DisablePermanently();
			return;
		}
	}

	// Get stuff
	fSWidth = pipe->Width();
	fSHeight = pipe->Height();

	// Start other stuff
	fFont->SaveStates();

	for( j = 0; j < 2; j++ )
	{
		if( j == 0 )
			list = &fList;
		else
			list = &fDrawOnTopList;

		for( i = 0; i < list->GetCount(); i++ )
		{
			plDebugTextNode& node = (*list)[i];

			if( node.fStyle == 0xff )
			{
				fFont->DrawRect( node.fX, node.fY, 
								 node.fRight, node.fBottom, node.fColor );
			}
			else if( node.fStyle == 0xfe )
			{
				fFont->Draw3DBorder( node.fX, node.fY, 
								 node.fRight, node.fBottom, node.fColor, node.fDarkColor );
			}
			else
			{

				/// Draw string only if its in bounds (clip to right edge if necessary)
				if( node.fX >= 0 && node.fY >= 0 )
				{
					if( node.fY + fFont->GetFontHeight() < fSHeight )
					{
						if( node.fX + CalcStringWidth( node.fText ) < fSWidth )
						{
							fFont->DrawString( node.fText, node.fX, node.fY, 
											   node.fColor, node.fStyle );
						}
						else
						{
							fFont->DrawString( node.fText, node.fX, node.fY, 
											   node.fColor, node.fStyle, fSWidth );
						}
					}
				}
			}
		}
	}

	// Call this to ensure the font object finishes all its drawing
	fFont->FlushDraws();
	fFont->RestoreStates();

	fList.Reset();
	fDrawOnTopList.Reset();
}

//// CalcStringWidth /////////////////////////////////////////////////////////

UInt32	plDebugTextManager::CalcStringWidth( const char *string )
{
	if( !plDebugText::Instance().IsEnabled() || fFont == nil )
		return 0;

	return fFont->CalcStringWidth( string );	
}

//// GetScreenSize ///////////////////////////////////////////////////////////

void	plDebugTextManager::GetScreenSize( UInt32 *width, UInt32 *height )
{
	if( width != nil )
		*width = fSWidth;
	if( height != nil )
		*height = fSHeight;
}

UInt16 plDebugTextManager::GetFontHeight()
{
	if (fFont)
		return fFont->GetFontHeight();

	// Just return a quick default height until we get a real font
	return 10;
}