/*==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==*/
//////////////////////////////////////////////////////////////////////////////
//																			//
//	pfGUIButtonMod Definition												//
//																			//
//////////////////////////////////////////////////////////////////////////////

#include "hsTypes.h"
#include "pfGUIButtonMod.h"
#include "pfGUIDraggableMod.h"
#include "pfGameGUIMgr.h"
#include "pfGUIControlHandlers.h"
#include "pfGUIDialogMod.h"

#include "plInputCore/plInputInterface.h"
#include "pnMessage/plRefMsg.h"
#include "pfMessage/pfGameGUIMsg.h"
#include "plMessage/plAnimCmdMsg.h"
#include "plAvatar/plAGModifier.h"
#include "plgDispatch.h"
#include "hsResMgr.h"


//// Control Proc For Managing the Draggable /////////////////////////////////

class pfGUIButtonDragProc : public pfGUICtrlProcObject
{
	protected:

		pfGUICtrlProcObject	*fOrigProc;

		pfGUIButtonMod		*fParent;
		pfGUIDraggableMod	*fDraggable;
		hsBool				fReportDrag;

	public:

		pfGUIButtonDragProc( pfGUIButtonMod *parent, pfGUIDraggableMod *draggable, pfGUICtrlProcObject *origProc, hsBool reportDrag )
		{
			fParent = parent;
			fDraggable = draggable;
			fOrigProc = origProc;
			fReportDrag = reportDrag;
		}

		virtual void	DoSomething( pfGUIControlMod *ctrl )
		{
			// The draggable was let up, so now we stop dragging, disable the draggable again, and pass
			// on the event to our original proc
			if( fOrigProc != nil && fParent->IsTriggering() )
				fOrigProc->DoSomething( ctrl );
			if (!fParent->IsButtonDown())
				fParent->StopDragging( false );
		}

		virtual void	HandleExtendedEvent( pfGUIControlMod *ctrl, UInt32 event )
		{
			if( event == pfGUIDraggableMod::kDragging )
			{
				// First test if we're inside our button (if so, we stop dragging)
				if( fParent->PointInBounds( fDraggable->GetLastMousePt() ) )
				{
					// Cancel the drag
					fParent->StopDragging( true );
					return;
				}

				if( !fReportDrag )
					return;
			}
			
			if( fOrigProc != nil )
				fOrigProc->HandleExtendedEvent( ctrl, event );
		}

		virtual void	UserCallback( UInt32 userValue )
		{
			if( fOrigProc != nil )
				fOrigProc->UserCallback( userValue );
		}
};


void	pfGUIButtonMod::StopDragging( hsBool cancel )
{
	fDraggable->StopDragging( cancel );
	fDraggable->SetVisible( false );
	fDraggable->SetHandler( fOrigHandler );
	fOrigHandler = nil;

	if( !fOrigReportedDrag )
		fDraggable->ClearFlag( pfGUIDraggableMod::kReportDragging );

	// Steal interest back
	fDialog->SetControlOfInterest( this );
}

void	pfGUIButtonMod::StartDragging( void )
{
	fOrigReportedDrag = fDraggable->HasFlag( pfGUIDraggableMod::kReportDragging );
	fDraggable->SetFlag( pfGUIDraggableMod::kReportDragging );

	fOrigHandler = fDraggable->GetHandler();
	fDraggable->SetVisible( true );
	fDraggable->SetHandler( TRACKED_NEW pfGUIButtonDragProc( this, fDraggable, fOrigHandler, fOrigReportedDrag ) );
	fDraggable->HandleMouseDown( fOrigMouseDownPt, 0 );
}

//// Constructor/Destructor //////////////////////////////////////////////////

pfGUIButtonMod::pfGUIButtonMod()
{
	fAnimName = nil;
	fMouseOverAnimName = nil;
	fDraggable = nil;
	fOrigHandler = nil;

	fClicking = false;
	fTriggering = false;
	fNotifyType = kNotifyOnUp;
	SetFlag( kWantsInterest );
}

pfGUIButtonMod::~pfGUIButtonMod()
{
	delete [] fAnimName;
	delete [] fMouseOverAnimName;
}

//// IEval ///////////////////////////////////////////////////////////////////

hsBool	pfGUIButtonMod::IEval( double secs, hsScalar del, UInt32 dirty )
{
	return pfGUIControlMod::IEval( secs, del, dirty );
}

//// MsgReceive //////////////////////////////////////////////////////////////

hsBool	pfGUIButtonMod::MsgReceive( plMessage *msg )
{
	plGenRefMsg *refMsg = plGenRefMsg::ConvertNoRef( msg );
	if( refMsg != nil && refMsg->fType == kRefDraggable )
	{
		if( refMsg->GetContext() & ( plRefMsg::kOnCreate | plRefMsg::kOnRequest | plRefMsg::kOnReplace ) )
		{
			fDraggable = pfGUIDraggableMod::ConvertNoRef( refMsg->GetRef() );
			fDraggable->SetVisible( false );		// Disable until we're dragging
		}
		else
			fDraggable = nil;
		return true;
	}

	return pfGUIControlMod::MsgReceive( msg );
}

//// Read/Write //////////////////////////////////////////////////////////////

void	pfGUIButtonMod::Read( hsStream *s, hsResMgr *mgr )
{
	pfGUIControlMod::Read(s, mgr);

	fAnimationKeys.Reset();
	UInt32 i, count = s->ReadSwap32();
	for( i = 0; i < count; i++ )
		fAnimationKeys.Append( mgr->ReadKey( s ) );
	fAnimName = s->ReadSafeString();

	fMouseOverAnimKeys.Reset();
	count = s->ReadSwap32();
	for( i = 0; i < count; i++ )
		fMouseOverAnimKeys.Append( mgr->ReadKey( s ) );
	fMouseOverAnimName = s->ReadSafeString();

	fNotifyType = s->ReadSwap32();
	mgr->ReadKeyNotifyMe( s, TRACKED_NEW plGenRefMsg( GetKey(), plRefMsg::kOnCreate, -1, kRefDraggable ), plRefFlags::kActiveRef );
}

void	pfGUIButtonMod::Write( hsStream *s, hsResMgr *mgr )
{
	pfGUIControlMod::Write( s, mgr );

	UInt32 i, count = fAnimationKeys.GetCount();
	s->WriteSwap32( count );
	for( i = 0; i < count; i++ )
		mgr->WriteKey( s, fAnimationKeys[ i ] );
	s->WriteSafeString( fAnimName );

	count = fMouseOverAnimKeys.GetCount();
	s->WriteSwap32( count );
	for( i = 0; i < count; i++ )
		mgr->WriteKey( s, fMouseOverAnimKeys[ i ] );
	s->WriteSafeString( fMouseOverAnimName );

	s->WriteSwap32( fNotifyType );

	mgr->WriteKey( s, fDraggable != nil ? fDraggable->GetKey() : nil );

}

//// UpdateBounds ////////////////////////////////////////////////////////////

void	pfGUIButtonMod::UpdateBounds( hsMatrix44 *invXformMatrix, hsBool force )
{
	pfGUIControlMod::UpdateBounds( invXformMatrix, force );
	if( fAnimationKeys.GetCount() > 0 || fMouseOverAnimKeys.GetCount() > 0 )
		fBoundsValid = false;
}

//// HandleMouseDown/Up //////////////////////////////////////////////////////

void	pfGUIButtonMod::HandleMouseDown( hsPoint3 &mousePt, UInt8 modifiers )
{
	fClicking = true;
	if( fAnimationKeys.GetCount() > 0 )
	{
		plAnimCmdMsg *msg = TRACKED_NEW plAnimCmdMsg();
		msg->SetCmd( plAnimCmdMsg::kContinue );
		msg->SetCmd( plAnimCmdMsg::kSetForewards );
		msg->SetCmd( plAnimCmdMsg::kGoToBegin );	
		msg->SetAnimName( fAnimName );
		msg->AddReceivers( fAnimationKeys );
		plgDispatch::MsgSend( msg );
	}

	IPlaySound( kMouseDown );

	fOrigMouseDownPt = mousePt;
	if ( fNotifyType == kNotifyOnDown || fNotifyType == kNotifyOnUpAndDown)
	{
		fTriggering = true;
		DoSomething();
		fTriggering = false;
	}
}

void	pfGUIButtonMod::HandleMouseUp( hsPoint3 &mousePt, UInt8 modifiers )
{

	// make sure that we got the down click first
	if ( !fClicking )
		return;

	fClicking = false;
	if( fAnimationKeys.GetCount() > 0 )
	{
		plAnimCmdMsg *msg = TRACKED_NEW plAnimCmdMsg();
		msg->SetCmd( plAnimCmdMsg::kContinue );
		msg->SetCmd( plAnimCmdMsg::kSetBackwards );
		msg->SetCmd( plAnimCmdMsg::kGoToEnd );	
		msg->SetAnimName( fAnimName );
		msg->AddReceivers( fAnimationKeys );
		plgDispatch::MsgSend( msg );
	}

	IPlaySound( kMouseUp );

	// Don't run the command if the mouse is outside our bounds
	if( !fBounds.IsInside( &mousePt ) && fNotifyType != kNotifyOnUpAndDown )
		return;		

	if ( fNotifyType == kNotifyOnUp || fNotifyType == kNotifyOnUpAndDown)
		fTriggering = true;
	DoSomething();
	fTriggering = false;
}

void	pfGUIButtonMod::HandleMouseDrag( hsPoint3 &mousePt, UInt8 modifiers )
{
	if( !fClicking )
		return;

	if( fDraggable == nil )
		return;

	if( !fDraggable->IsVisible() )
	{
		// Are we outside ourselves?
		if( !PointInBounds( mousePt ) )
		{
			// Yes, start dragging
			StartDragging();

			// Hand off our interest to the draggable
			fDialog->SetControlOfInterest( fDraggable );
		}
	}
}

void	pfGUIButtonMod::SetNotifyType(Int32 kind)
{
	fNotifyType = kind;
}

Int32	pfGUIButtonMod::GetNotifyType()
{
	return fNotifyType;
}

hsBool	pfGUIButtonMod::IsButtonDown()
{
	return fClicking;
}

//// SetInteresting //////////////////////////////////////////////////////////
//	Overridden to play mouse over animation when we're interesting

void	pfGUIButtonMod::SetInteresting( hsBool i )
{
	pfGUIControlMod::SetInteresting( i );

	if( fMouseOverAnimKeys.GetCount() )
	{
		plAnimCmdMsg *msg = TRACKED_NEW plAnimCmdMsg();
		msg->SetCmd( plAnimCmdMsg::kContinue );
		msg->SetCmd( fInteresting ? plAnimCmdMsg::kSetForewards : plAnimCmdMsg::kSetBackwards );
		msg->SetAnimName( fMouseOverAnimName );
		msg->AddReceivers( fMouseOverAnimKeys );
		plgDispatch::MsgSend( msg );
	}

	if( i )
		IPlaySound( kMouseOver );
	else
		IPlaySound( kMouseOff );
}


void	pfGUIButtonMod::SetAnimationKeys( hsTArray<plKey> &keys, const char *name )
{
	fAnimationKeys = keys;
	delete [] fAnimName;
	if( name != nil )
	{
		fAnimName = TRACKED_NEW char[ strlen( name ) + 1 ];
		strcpy( fAnimName, name );
	}
	else
		fAnimName = nil;
}

void	pfGUIButtonMod::SetMouseOverAnimKeys( hsTArray<plKey> &keys, const char *name )
{
	fMouseOverAnimKeys = keys;
	delete [] fMouseOverAnimName;
	if( name != nil )
	{
		fMouseOverAnimName = TRACKED_NEW char[ strlen( name ) + 1 ];
		strcpy( fMouseOverAnimName, name );
	}
	else
		fMouseOverAnimName = nil;
}


//// IGetDesiredCursor ///////////////////////////////////////////////////////

UInt32		pfGUIButtonMod::IGetDesiredCursor( void ) const
{
	if( fHandler == nil )
		return 0;

	if( fClicking )
		return plInputInterface::kCursorClicked;

	return plInputInterface::kCursorPoised;
}