/*==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/>.

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==*/
//////////////////////////////////////////////////////////////////////////////
//                                                                          //
//  plPlates - Header file for the plates and plPlateManager                //
//                                                                          //
//////////////////////////////////////////////////////////////////////////////

#ifndef _plPlates_h
#define _plPlates_h

#include "hsTypes.h"
#include "hsStlUtils.h"
#include "hsColorRGBA.h"
#include "hsTemplates.h"
#include "hsUtils.h"
#include "hsMatrix44.h"



//// plPlate Class Definition ////////////////////////////////////////////////
//  plPlate is the actual plate object that represents one plate on the 
//  screen. It has a transform matrix (which includes position, scale and
//  rotation), a material, a depth value and a color that is applied to all
//  four corners. All plates are parallelograms. 

class plPlateManager;
class hsGMaterial;
class plMipmap;
class plBitmap;

class plPlate
{
    friend class plPlateManager;

    protected:
        
        hsMatrix44      fXformMatrix;
        hsGMaterial     *fMaterial;
        plMipmap        *fMipmap;
        hsScalar        fDepth, fOpacity;
        UInt32          fFlags;
        char            fTitle[ 64 ];

        plPlate         *fNext;
        plPlate         **fPrevPtr;

        plPlate         **fOwningHandle;

        static UInt32   fMagicUniqueKeyInt;

        plPlate( plPlate** owningHandle );
        virtual ~plPlate();

        void    ILink( plPlate **back );

        void    IUnlink( void )
        {
            hsAssert( fPrevPtr, "Plate not in list" );
            if( fNext )
                fNext->fPrevPtr = fPrevPtr;
            *fPrevPtr = fNext;

            fNext = nil;
            fPrevPtr = nil;
        }

        void ISetResourceAlphas(UInt32 colorKey);

    public:

        enum 
        {
            kFlagVisible        = 0x00000001,
            kFlagLocalMaterial  = 0x00000002,
            kFlagIsAGraph       = 0x00000004
        };

        /// Basic properties

        void    SetTransform( hsMatrix44 &matrix, hsBool reSort = true );
        void    SetMaterial( hsGMaterial *material );
        void    SetTexture(plBitmap *texture); // Creates a new single layer material to use the texture.
        void    SetTitle( const char *title ) { if( title != nil ) strncpy( fTitle, title, sizeof( fTitle ) ); else fTitle[ 0 ] = 0; }

        hsGMaterial     *GetMaterial( void ) { return fMaterial; }
        hsMatrix44      &GetTransform( void ) { return fXformMatrix; }
        const char      *GetTitle( void ) { return fTitle; }
        UInt32          GetFlags( void ) { return fFlags; }
        const plMipmap  *GetMipmap( void ) { return fMipmap; }

        void    SetVisible( hsBool vis ) { if( vis ) fFlags |= kFlagVisible; else fFlags &= ~kFlagVisible; }
        hsBool  IsVisible( void );

        void    SetOpacity( hsScalar opacity = 1.f );

        plPlate *GetNext( void ) { return fNext; }


        /// Helper functions
        
        void    SetDepth( hsScalar depth) { fDepth = depth; }
        void    SetPosition( hsScalar x, hsScalar y, hsScalar z = -1.0f );
        void    SetSize( hsScalar width, hsScalar height, bool adjustByAspectRatio = false );

        plMipmap        *CreateMaterial( UInt32 width, UInt32 height, hsBool withAlpha, plMipmap* texture = NULL );
        void            CreateFromResource( const char *resName );
        void            ReloadFromResource( const char *resName );
};

//// plGraphPlate Class Definition ///////////////////////////////////////////
//  A derivation of plPlate that maintains a procedural texture which displays
//  a scrolling graph of data.

class plGraphPlate : public plPlate
{
    protected:
        UInt32          fBGHexColor, fAxesHexColor, fGraphHexColor;
        std::vector<UInt32> fDataHexColors;
        UInt32          fMin, fMax, fLabelMin, fLabelMax;
        std::vector<Int32>  fLastValues;
        std::vector<std::string>    fLabelText;

        UInt32      IMakePow2( UInt32 value );
        void        IDrawNumber( UInt32 number, UInt32 *dataPtr, UInt32 stride, UInt32 color );
        void        IDrawDigit( char digit, UInt32 *dataPtr, UInt32 stride, UInt32 color );

    public:
        plGraphPlate( plPlate **owningHandle );
        virtual ~plGraphPlate();

        void    SetDataRange( UInt32 min, UInt32 max, UInt32 width );
        void    SetDataLabels( UInt32 min, UInt32 max );
        void    SetLabelText( char *text1, char *text2 = nil, char *text3 = nil, char *text4 = nil );
        void    SetLabelText( const std::vector<std::string> & text );
        void    ClearData( void );

        void    AddData( Int32 value, Int32 value2 = -1, Int32 value3 = -1, Int32 value4 = -1 );
        void    AddData( std::vector<Int32> values );

        void    SetColors( UInt32 bgHexColor = 0x80000000, UInt32 axesHexColor = 0xffffffff, UInt32 dataHexColor = 0xff00ff00, UInt32 graphHexColor = 0x80ff0000 );
        void    SetDataColors( UInt32 hexColor1 = 0xff00ff00, UInt32 hexColor2 = 0xff0000ff, UInt32 hexColor3 = 0xffffff00, UInt32 hexColor4 = 0xffff00ff );
        void    SetDataColors( const std::vector<UInt32> & hexColors );

        const char      *GetLabelText( int i ) { return fLabelText[ i ].c_str(); }
        const UInt32    GetDataColor( int i ) { return fDataHexColors[ i ]; }
        const UInt32    GetNumLabels() { return fLabelText.size(); }
        const UInt32    GetNumColors() { return fDataHexColors.size(); }
};

//// plPlateManager Class Definition /////////////////////////////////////////
//  This class handles all the plates--it keeps track of all the plates, 
//  creates and destroys them, and draws them when the pipeline tells it to.

class plPipeline;

class plPlateManager
{
    friend class plPlate;

    private:

        static plPlateManager   *fInstance;

    protected:

        plPlate     *fPlates;
        plPipeline  *fOwner;
        hsBool      fCreatedSucessfully;

        plPlateManager( plPipeline *pipe ) 
        {
            fInstance = this;
            fPlates = nil;
            fOwner = pipe;
            fCreatedSucessfully = true;
        }

        virtual void    IDrawToDevice( plPipeline *pipe ) = 0;

        void            IResortPlate( plPlate *plate, bool fromCurrent );

    public:

        virtual ~plPlateManager();
        
        static plPlateManager   &Instance( void ) { return *fInstance; }
        static bool InstanceValid( void ) { return fInstance != nil; }

        void        CreatePlate( plPlate **handle );
        void        CreatePlate( plPlate **handle, hsScalar width, hsScalar height );
        void        CreatePlate( plPlate **handle, hsScalar x, hsScalar y, hsScalar width, hsScalar height );

        void        CreateGraphPlate( plGraphPlate **handle );

        void        DestroyPlate( plPlate *plate );

        void        SetPlateScreenPos( plPlate *plate, UInt32 x, UInt32 y );
        void        SetPlatePixelSize( plPlate *plate, UInt32 pWidth, UInt32 pHeight );

        UInt32      GetPipeWidth( void );
        UInt32      GetPipeHeight( void );
        void        DrawToDevice( plPipeline *pipe );

        hsBool      IsValid( void ) { return fCreatedSucessfully; }
};

// Sets the hInstance that we load our resources from.  A SceneViewer hack.
void SetHInstance(void *instance);

#endif //_plPlates_h