/* ScummVM - Graphic Adventure Engine
 *
 * ScummVM is the legal property of its developers, whose names
 * are too numerous to list here. Please refer to the COPYRIGHT
 * file distributed with this source distribution.
 *
 * 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/>.
 *
 */

/*
 * Copyright (C) 2006-2010 - Frictional Games
 *
 * This file is part of HPL1 Engine.
 */

#include "hpl1/engine/gui/GuiPopUpMessageBox.h"

#include "hpl1/engine/system/low_level_system.h"

#include "hpl1/engine/math/Math.h"

#include "hpl1/engine/graphics/font_data.h"

#include "hpl1/engine/gui/Gui.h"
#include "hpl1/engine/gui/GuiSet.h"
#include "hpl1/engine/gui/GuiSkin.h"

#include "hpl1/engine/gui/WidgetButton.h"
#include "hpl1/engine/gui/WidgetLabel.h"
#include "hpl1/engine/gui/WidgetWindow.h"

namespace hpl {

//////////////////////////////////////////////////////////////////////////
// CONSTRUCTORS
//////////////////////////////////////////////////////////////////////////

//-----------------------------------------------------------------------

cGuiPopUpMessageBox::cGuiPopUpMessageBox(cGuiSet *apSet,
										 const tWString &asLabel, const tWString &asText,
										 const tWString &asButton1, const tWString &asButton2,
										 void *apCallbackObject, tGuiCallbackFunc apCallback)
	: iGuiPopUp(apSet) {
	//////////////////////////
	// Set up variables
	mpCallback = apCallback;
	mpCallbackObject = apCallbackObject;

	cGuiSkinFont *pFont = mpSkin->GetFont(eGuiSkinFont_Default);

	float fWindowMinLength = pFont->mpFont->getLength(pFont->mvSize, asLabel.c_str());
	float fTextLength = pFont->mpFont->getLength(pFont->mvSize, asText.c_str());

	if (fTextLength > fWindowMinLength)
		fWindowMinLength = fTextLength;

	float fWindowWidth = fWindowMinLength + 40 > 200 ? fWindowMinLength + 40 : 200;

	cVector2f vVirtSize = mpSet->GetVirtualSize();

	float fWindowHeight = 90 + pFont->mvSize.y;

	//////////////////////////
	// Window
	cVector3f vPos = cVector3f(vVirtSize.x / 2 - fWindowWidth / 2, vVirtSize.y / 2 - fWindowHeight / 2, 18);
	mpWindow = mpSet->CreateWidgetWindow(vPos, cVector2f(fWindowWidth, fWindowHeight), asLabel, NULL);

	//////////////////////////
	// Buttons
	if (asButton2 == _W("")) {
		vPos = cVector3f(fWindowWidth / 2 - 40, 50 + pFont->mvSize.y, 1);
		mvButtons[0] = mpSet->CreateWidgetButton(vPos, cVector2f(80, 30), asButton1, mpWindow);
		mvButtons[0]->AddCallback(eGuiMessage_ButtonPressed, this, kGuiCallback(ButtonPress));

		mvButtons[1] = NULL;
	} else {
		vPos = cVector3f(fWindowWidth / 2 - (80 * 2 + 20) / 2, 50 + pFont->mvSize.y, 1);
		mvButtons[0] = mpSet->CreateWidgetButton(vPos, cVector2f(80, 30), asButton1, mpWindow);
		mvButtons[0]->AddCallback(eGuiMessage_ButtonPressed, this, kGuiCallback(ButtonPress));

		vPos.x += 80 + 20;
		mvButtons[1] = mpSet->CreateWidgetButton(vPos, cVector2f(80, 30), asButton2, mpWindow);
		mvButtons[1]->AddCallback(eGuiMessage_ButtonPressed, this, kGuiCallback(ButtonPress));
	}

	//////////////////////////
	// Label
	vPos = cVector3f(20, 30, 1);
	mpLabel = mpSet->CreateWidgetLabel(vPos, cVector2f(fWindowWidth - 10, pFont->mvSize.y),
									   asText, mpWindow);

	//////////////////////////
	// Attention
	mpPrevAttention = mpSet->GetAttentionWidget();
	mpSet->SetAttentionWidget(mpWindow);
}

//-----------------------------------------------------------------------

cGuiPopUpMessageBox::~cGuiPopUpMessageBox() {
	if (mpWindow)
		mpSet->DestroyWidget(mpWindow);
	if (mvButtons[0])
		mpSet->DestroyWidget(mvButtons[0]);
	if (mvButtons[1])
		mpSet->DestroyWidget(mvButtons[1]);
	if (mpLabel)
		mpSet->DestroyWidget(mpLabel);
}

//-----------------------------------------------------------------------

//////////////////////////////////////////////////////////////////////////
// PUBLIC METHODS
//////////////////////////////////////////////////////////////////////////

//-----------------------------------------------------------------------

//-----------------------------------------------------------------------

//////////////////////////////////////////////////////////////////////////
// PROTECTED METHODS
//////////////////////////////////////////////////////////////////////////

//-----------------------------------------------------------------------

bool cGuiPopUpMessageBox::ButtonPress(iWidget *apWidget, cGuiMessageData &aData) {
	int lButton = apWidget == mvButtons[0] ? 0 : 1;

	mpSet->SetAttentionWidget(mpPrevAttention);

	if (mpCallback && mpCallbackObject) {
		cGuiMessageData data = cGuiMessageData(lButton);
		mpCallback(mpCallbackObject, apWidget, data);
	}

	SelfDestruct();

	return true;
}
kGuiCalllbackDeclaredFuncEnd(cGuiPopUpMessageBox, ButtonPress)

//-----------------------------------------------------------------------

} // namespace hpl