/* Copyright (c) 2002-2012 Croteam Ltd.
This program is free software; you can redistribute it and/or modify
it under the terms of version 2 of the GNU General Public License as published by
the Free Software Foundation

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, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. */

#include "StdH.h"
#include <Engine/Base/KeyNames.h>
#include <Engine/CurrentVersion.h>
#include <GameMP/LCDDrawing.h>
#include "LevelInfo.h"
#include "VarList.h"
#include "MenuGadget.h"

extern CSoundData *_psdSelect;

extern BOOL _bDefiningKey = FALSE;
extern BOOL _bEditingString = FALSE;
extern CMenuGadget *_pmgLastActivatedGadget = NULL;


CMenuGadget::CMenuGadget(void)
{
	mg_pmgLeft = NULL;
	mg_pmgRight = NULL;
	mg_pmgUp = NULL;
	mg_pmgDown = NULL;

	mg_bVisible = TRUE;
	mg_bEnabled = TRUE;
	mg_bLabel = FALSE;
	mg_bFocused = FALSE;
	mg_iInList = -1;    // not in list
}

void CMenuGadget::OnActivate(void)
{
	NOTHING;
}

// return TRUE if handled
BOOL CMenuGadget::OnKeyDown(int iVKey)
{
	// if return pressed
	if (iVKey == VK_RETURN || iVKey == VK_LBUTTON) {
		// activate
		OnActivate();
		// key is handled
		return TRUE;
	}
	// key is not handled
	return FALSE;
}


BOOL CMenuGadget::OnChar(MSG msg)
{
	// key is not handled
	return FALSE;
}


void CMenuGadget::OnSetFocus(void)
{
	mg_bFocused = TRUE;
	if (!IsSeparator())
	{
		PlayMenuSound(_psdSelect);
		IFeel_PlayEffect("Menu_select");
	}
}

void CMenuGadget::OnKillFocus(void)
{
	mg_bFocused = FALSE;
}

void CMenuGadget::Appear(void)
{
	mg_bVisible = TRUE;
}

void CMenuGadget::Disappear(void)
{
	mg_bVisible = FALSE;
	mg_bFocused = FALSE;
}

void CMenuGadget::Think(void)
{
}

void CMenuGadget::OnMouseOver(PIX pixI, PIX pixJ)
{
}

// get current color for the gadget
COLOR CMenuGadget::GetCurrentColor(void)
{
	// use normal colors
	COLOR colUnselected = LCDGetColor(C_GREEN, "unselected");
	COLOR colSelected = LCDGetColor(C_WHITE, "selected");
	// if disabled
	if (!mg_bEnabled) {
		// use a bit darker colors
		colUnselected = LCDGetColor(C_dGREEN, "disabled unselected");
		colSelected = LCDGetColor(C_GRAY, "disabled selected");
		// if label
		if (mg_bLabel) {
			// use white
			colUnselected = colSelected = LCDGetColor(C_WHITE, "label");
		}
	}
	// use unselected color
	COLOR colRet = colUnselected;
	// if selected
	if (mg_bFocused) {
		// oscilate towards selected color
		FLOAT tmNow = _pTimer->GetHighPrecisionTimer().GetSeconds();
		colRet = LerpColor((colUnselected >> 1) & 0x7F7F7F7F, colSelected, sin(tmNow*10.0f)*0.5f + 0.5f);
	}

	return colRet | CT_OPAQUE;
}

void CMenuGadget::Render(CDrawPort *pdp)
{
}