/************************************************************************
* Minetest-c55
* Copyright (C) 2010-2011 celeron55, Perttu Ahola <celeron55@gmail.com>
*
* guiMessageMenu.cpp
* voxelands - 3d voxel world sandbox game
* Copyright (C) Lisa 'darkrose' Milne 2013-2014 <lisa@ltmnet.com>
*
* 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/>
*
* License updated from GPLv2 or later to GPLv3 or later by Lisa Milne
* for Voxelands.
************************************************************************/

#include "guiMessageMenu.h"
#include "debug.h"
#include "serialization.h"
#include <string>
#include <IGUICheckBox.h>
#include <IGUIEditBox.h>
#include <IGUIButton.h>
#include <IGUIStaticText.h>
#include <IGUIFont.h>

#include "intl.h"
#include "gui_colours.h"

GUIMessageMenu::GUIMessageMenu(gui::IGUIEnvironment* env,
		gui::IGUIElement* parent, s32 id,
		IMenuManager *menumgr,
		std::wstring message_text
):
	GUIModalMenu(env, parent, id, menumgr),
	m_message_text(message_text),
	m_status(false)
{
}

GUIMessageMenu::~GUIMessageMenu()
{
	removeChildren();
}

void GUIMessageMenu::removeChildren()
{
	{
		gui::IGUIElement *e = getElementFromId(256);
		if(e != NULL)
			e->remove();
	}
	{
		gui::IGUIElement *e = getElementFromId(257);
		if(e != NULL)
			e->remove();
	}
}

void GUIMessageMenu::regenerateGui(v2u32 screensize)
{
	/*
		Remove stuff
	*/
	removeChildren();

	/*
		Calculate new sizes and positions
	*/
	//core::rect<s32> rect(
			//screensize.X/2 - 580/2,
			//screensize.Y/2 - 300/2,
			//screensize.X/2 + 580/2,
			//screensize.Y/2 + 300/2
	//);
	core::rect<s32> rect(
			screensize.X/2 - 160,
			screensize.Y/2 - 60,
			screensize.X/2 + 160,
			screensize.Y/2 + 60
	);


	DesiredRect = rect;
	recalculateAbsolutePosition(false);

	v2s32 size = rect.getSize();

	/*
		Add stuff
	*/
	{
		core::rect<s32> rect(0, 0, 300, 50);
		rect = rect + v2s32(size.X/2-150, size.Y/2-50/2-25);
		Environment->addStaticText(m_message_text.c_str(), rect, false,
				true, this, 256);
	}
	{
		core::rect<s32> rect(0, 0, 140, 30);
		rect = rect + v2s32(size.X/2-140/2, size.Y/2-30/2+25);
		gui::IGUIElement *e =
		Environment->addButton(rect, this, 257,
			wgettext("Continue"));
		Environment->setFocus(e);
	}
}

void GUIMessageMenu::drawMenu()
{
	gui::IGUISkin* skin = Environment->getSkin();
	if (!skin)
		return;
	video::IVideoDriver* driver = Environment->getVideoDriver();

	driver->draw2DRectangle(AbsoluteRect, GUI_BG_TOP, GUI_BG_TOP, GUI_BG_BTM, GUI_BG_BTM, &AbsoluteClippingRect);
	driver->draw2DRectangleOutline(AbsoluteRect, GUI_BORDER);

	gui::IGUIElement::draw();
}

bool GUIMessageMenu::OnEvent(const SEvent& event)
{
	if(event.EventType==EET_KEY_INPUT_EVENT)
	{
		if(event.KeyInput.Key==KEY_ESCAPE && event.KeyInput.PressedDown)
		{
			m_status = true;
			quitMenu();
			return true;
		}
		if(event.KeyInput.Key==KEY_RETURN && event.KeyInput.PressedDown)
		{
			m_status = true;
			quitMenu();
			return true;
		}
	}
	if(event.EventType==EET_GUI_EVENT)
	{
		if(event.GUIEvent.EventType==gui::EGET_ELEMENT_FOCUS_LOST
				&& isVisible())
		{
			if(!canTakeFocus(event.GUIEvent.Element))
			{
				dstream<<"GUIMessageMenu: Not allowing focus change."
						<<std::endl;
				// Returning true disables focus change
				return true;
			}
		}
		if(event.GUIEvent.EventType==gui::EGET_BUTTON_CLICKED)
		{
			switch(event.GUIEvent.Caller->getID())
			{
			case 257:
				m_status = true;
				quitMenu();
				return true;
			}
		}
	}

	return Parent ? Parent->OnEvent(event) : false;
}

