minetest/src/guiFormSpecMenu.cpp

/*
Minetest
Copyright (C) 2013 celeron55, Perttu Ahola <celeron55@gmail.com>

This program is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2.1 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 Lesser General Public License for more details.

You should have received a copy of the GNU Lesser 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 <cstdlib>
#include <algorithm>
#include <iterator>
#include <sstream>
#include <limits>
#include "guiFormSpecMenu.h"
#include "guiTable.h"
#include "constants.h"
#include "gamedef.h"
#include "keycode.h"
#include "strfnd.h"
#include <IGUICheckBox.h>
#include <IGUIEditBox.h>
#include <IGUIButton.h>
#include <IGUIStaticText.h>
#include <IGUIFont.h>
#include <IGUITabControl.h>
#include <IGUIComboBox.h>
#include "log.h"
#include "client/tile.h" // ITextureSource
#include "hud.h" // drawItemStack
#include "filesys.h"
#include "gettime.h"
#include "gettext.h"
#include "scripting_game.h"
#include "porting.h"
#include "settings.h"
#include "client.h"
#include "fontengine.h"
#include "util/hex.h"
#include "util/numeric.h"
#include "util/string.h" // for parseColorString()
#include "guiscalingfilter.h"

#if USE_FREETYPE && IRRLICHT_VERSION_MAJOR == 1 && IRRLICHT_VERSION_MINOR < 9
#include "intlGUIEditBox.h"
#endif

#define MY_CHECKPOS(a,b)													\
	if (v_pos.size() != 2) {												\
		errorstream<< "Invalid pos for element " << a << "specified: \""	\
			<< parts[b] << "\"" << std::endl;								\
			return;															\
	}

#define MY_CHECKGEOM(a,b)													\
	if (v_geom.size() != 2) {												\
		errorstream<< "Invalid pos for element " << a << "specified: \""	\
			<< parts[b] << "\"" << std::endl;								\
			return;															\
	}
/*
	GUIFormSpecMenu
*/
static unsigned int font_line_height(gui::IGUIFont *font)
{
	return font->getDimension(L"Ay").Height + font->getKerningHeight();
}

GUIFormSpecMenu::GUIFormSpecMenu(irr::IrrlichtDevice* dev,
		gui::IGUIElement* parent, s32 id, IMenuManager *menumgr,
		InventoryManager *invmgr, IGameDef *gamedef,
		ISimpleTextureSource *tsrc, IFormSource* fsrc, TextDest* tdst,
		Client* client, bool remap_dbl_click) :
	GUIModalMenu(dev->getGUIEnvironment(), parent, id, menumgr),
	m_device(dev),
	m_invmgr(invmgr),
	m_gamedef(gamedef),
	m_tsrc(tsrc),
	m_client(client),
	m_selected_item(NULL),
	m_selected_amount(0),
	m_selected_dragging(false),
	m_tooltip_element(NULL),
	m_hovered_time(0),
	m_old_tooltip_id(-1),
	m_rmouse_auto_place(false),
	m_allowclose(true),
	m_lock(false),
	m_form_src(fsrc),
	m_text_dst(tdst),
	m_formspec_version(0),
	m_focused_element(""),
	m_font(NULL),
	m_remap_dbl_click(remap_dbl_click)
#ifdef __ANDROID__
	, m_JavaDialogFieldName("")
#endif
{
	current_keys_pending.key_down = false;
	current_keys_pending.key_up = false;
	current_keys_pending.key_enter = false;
	current_keys_pending.key_escape = false;

	m_doubleclickdetect[0].time = 0;
	m_doubleclickdetect[1].time = 0;

	m_doubleclickdetect[0].pos = v2s32(0, 0);
	m_doubleclickdetect[1].pos = v2s32(0, 0);

	m_tooltip_show_delay = (u32)g_settings->getS32("tooltip_show_delay");
}

GUIFormSpecMenu::~GUIFormSpecMenu()
{
	removeChildren();

	for (u32 i = 0; i < m_tables.size(); ++i) {
		GUITable *table = m_tables[i].second;
		table->drop();
	}

	delete m_selected_item;

	if (m_form_src != NULL) {
		delete m_form_src;
	}
	if (m_text_dst != NULL) {
		delete m_text_dst;
	}
}

void GUIFormSpecMenu::removeChildren()
{
	const core::list<gui::IGUIElement*> &children = getChildren();

	while(!children.empty()) {
		(*children.getLast())->remove();
	}

	if(m_tooltip_element) {
		m_tooltip_element->remove();
		m_tooltip_element->drop();
		m_tooltip_element = NULL;
	}

}

void GUIFormSpecMenu::setInitialFocus()
{
	// Set initial focus according to following order of precedence:
	// 1. first empty editbox
	// 2. first editbox
	// 3. first table
	// 4. last button
	// 5. first focusable (not statictext, not tabheader)
	// 6. first child element

	core::list<gui::IGUIElement*> children = getChildren();

	// in case "children" contains any NULL elements, remove them
	for (core::list<gui::IGUIElement*>::Iterator it = children.begin();
			it != children.end();) {
		if (*it)
			++it;
		else
			it = children.erase(it);
	}

	// 1. first empty editbox
	for (core::list<gui::IGUIElement*>::Iterator it = children.begin();
			it != children.end(); ++it) {
		if ((*it)->getType() == gui::EGUIET_EDIT_BOX
				&& (*it)->getText()[0] == 0) {
			Environment->setFocus(*it);
			return;
		}
	}

	// 2. first editbox
	for (core::list<gui::IGUIElement*>::Iterator it = children.begin();
			it != children.end(); ++it) {
		if ((*it)->getType() == gui::EGUIET_EDIT_BOX) {
			Environment->setFocus(*it);
			return;
		}
	}

	// 3. first table
	for (core::list<gui::IGUIElement*>::Iterator it = children.begin();
			it != children.end(); ++it) {
		if ((*it)->getTypeName() == std::string("GUITable")) {
			Environment->setFocus(*it);
			return;
		}
	}

	// 4. last button
	for (core::list<gui::IGUIElement*>::Iterator it = children.getLast();
			it != children.end(); --it) {
		if ((*it)->getType() == gui::EGUIET_BUTTON) {
			Environment->setFocus(*it);
			return;
		}
	}

	// 5. first focusable (not statictext, not tabheader)
	for (core::list<gui::IGUIElement*>::Iterator it = children.begin();
			it != children.end(); ++it) {
		if ((*it)->getType() != gui::EGUIET_STATIC_TEXT &&
				(*it)->getType() != gui::EGUIET_TAB_CONTROL) {
			Environment->setFocus(*it);
			return;
		}
	}

	// 6. first child element
	if (children.empty())
		Environment->setFocus(this);
	else
		Environment->setFocus(*(children.begin()));
}

GUITable* GUIFormSpecMenu::getTable(const std::string &tablename)
{
	for (u32 i = 0; i < m_tables.size(); ++i) {
		if (tablename == m_tables[i].first.fname)
			return m_tables[i].second;
	}
	return 0;
}

static std::vector<std::string> split(const std::string &s, char delim)
{
	std::vector<std::string> tokens;

	std::string current = "";
	bool last_was_escape = false;
	for (unsigned int i = 0; i < s.size(); i++) {
		char si = s.c_str()[i];
		if (last_was_escape) {
			current += '\\';
			current += si;
			last_was_escape = false;
		} else {
			if (si == delim) {
				tokens.push_back(current);
				current = "";
				last_was_escape = false;
			} else if (si == '\\') {
				last_was_escape = true;
			} else {
				current += si;
				last_was_escape = false;
			}
		}
	}
	//push last element
	tokens.push_back(current);

	return tokens;
}

void GUIFormSpecMenu::parseSize(parserData* data,std::string element)
{
	std::vector<std::string> parts = split(element,',');

	if (((parts.size() == 2) || parts.size() == 3) ||
		((parts.size() > 3) && (m_formspec_version > FORMSPEC_API_VERSION)))
	{
		if (parts[1].find(';') != std::string::npos)
			parts[1] = parts[1].substr(0,parts[1].find(';'));

		data->invsize.X = MYMAX(0, stof(parts[0]));
		data->invsize.Y = MYMAX(0, stof(parts[1]));

		lockSize(false);
		if (parts.size() == 3) {
			if (parts[2] == "true") {
				lockSize(true,v2u32(800,600));
			}
		}

		data->explicit_size = true;
		return;
	}
	errorstream<< "Invalid size element (" << parts.size() << "): '" << element << "'"  << std::endl;
}

void GUIFormSpecMenu::parseList(parserData* data,std::string element)
{
	if (m_gamedef == 0) {
		errorstream<<"WARNING: invalid use of 'list' with m_gamedef==0"<<std::endl;
		return;
	}

	std::vector<std::string> parts = split(element,';');

	if (((parts.size() == 4) || (parts.size() == 5)) ||
		((parts.size() > 5) && (m_formspec_version > FORMSPEC_API_VERSION)))
	{
		std::string location = parts[0];
		std::string listname = parts[1];
		std::vector<std::string> v_pos  = split(parts[2],',');
		std::vector<std::string> v_geom = split(parts[3],',');
		std::string startindex = "";
		if (parts.size() == 5)
			startindex = parts[4];

		MY_CHECKPOS("list",2);
		MY_CHECKGEOM("list",3);

		InventoryLocation loc;

		if(location == "context" || location == "current_name")
			loc = m_current_inventory_location;
		else
			loc.deSerialize(location);

		v2s32 pos = padding + AbsoluteRect.UpperLeftCorner;
		pos.X += stof(v_pos[0]) * (float)spacing.X;
		pos.Y += stof(v_pos[1]) * (float)spacing.Y;

		v2s32 geom;
		geom.X = stoi(v_geom[0]);
		geom.Y = stoi(v_geom[1]);

		s32 start_i = 0;
		if(startindex != "")
			start_i = stoi(startindex);

		if (geom.X < 0 || geom.Y < 0 || start_i < 0) {
			errorstream<< "Invalid list element: '" << element << "'"  << std::endl;
			return;
		}

		if(!data->explicit_size)
			errorstream<<"WARNING: invalid use of list without a size[] element"<<std::endl;
		m_inventorylists.push_back(ListDrawSpec(loc, listname, pos, geom, start_i));
		return;
	}
	errorstream<< "Invalid list element(" << parts.size() << "): '" << element << "'"  << std::endl;
}

void GUIFormSpecMenu::parseListRing(parserData* data, std::string element)
{
	if (m_gamedef == 0) {
		errorstream << "WARNING: invalid use of 'listring' with m_gamedef==0" << std::endl;
		return;
	}

	std::vector<std::string> parts = split(element, ';');

	if (parts.size() == 2) {
		std::string location = parts[0];
		std::string listname = parts[1];

		InventoryLocation loc;

		if (location == "context" || location == "current_name")
			loc = m_current_inventory_location;
		else
			loc.deSerialize(location);

		m_inventory_rings.push_back(ListRingSpec(loc, listname));
		return;
	} else if ((element == "") && (m_inventorylists.size() > 1)) {
		size_t siz = m_inventorylists.size();
		// insert the last two inv list elements into the list ring
		const ListDrawSpec &spa = m_inventorylists[siz - 2];
		const ListDrawSpec &spb = m_inventorylists[siz - 1];
		m_inventory_rings.push_back(ListRingSpec(spa.inventoryloc, spa.listname));
		m_inventory_rings.push_back(ListRingSpec(spb.inventoryloc, spb.listname));
		return;
	}
	errorstream<< "Invalid list ring element(" << parts.size() << ", "
		<< m_inventorylists.size() << "): '" << element << "'"  << std::endl;
}

void GUIFormSpecMenu::parseCheckbox(parserData* data,std::string element)
{
	std::vector<std::string> parts = split(element,';');

	if (((parts.size() >= 3) && (parts.size() <= 4)) ||
		((parts.size() > 4) && (m_formspec_version > FORMSPEC_API_VERSION)))
	{
		std::vector<std::string> v_pos = split(parts[0],',');
		std::string name = parts[1];
		std::string label = parts[2];
		std::string selected = "";

		if (parts.size() >= 4)
			selected = parts[3];

		MY_CHECKPOS("checkbox",0);

		v2s32 pos = padding;
		pos.X += stof(v_pos[0]) * (float) spacing.X;
		pos.Y += stof(v_pos[1]) * (float) spacing.Y;

		bool fselected = false;

		if (selected == "true")
			fselected = true;

		std::wstring wlabel = utf8_to_wide(label);

		core::rect<s32> rect = core::rect<s32>(
				pos.X, pos.Y + ((imgsize.Y/2) - m_btn_height),
				pos.X + m_font->getDimension(wlabel.c_str()).Width + 25, // text size + size of checkbox
				pos.Y + ((imgsize.Y/2) + m_btn_height));

		FieldSpec spec(
				name,
				wlabel, //Needed for displaying text on MSVC
				wlabel,
				258+m_fields.size()
			);

		spec.ftype = f_CheckBox;

		gui::IGUICheckBox* e = Environment->addCheckBox(fselected, rect, this,
					spec.fid, spec.flabel.c_str());

		if (spec.fname == data->focused_fieldname) {
			Environment->setFocus(e);
		}

		m_checkboxes.push_back(std::pair<FieldSpec,gui::IGUICheckBox*>(spec,e));
		m_fields.push_back(spec);
		return;
	}
	errorstream<< "Invalid checkbox element(" << parts.size() << "): '" << element << "'"  << std::endl;
}

void GUIFormSpecMenu::parseScrollBar(parserData* data, std::string element)
{
	std::vector<std::string> parts = split(element,';');

	if (parts.size() >= 5) {
		std::vector<std::string> v_pos = split(parts[0],',');
		std::vector<std::string> v_dim = split(parts[1],',');
		std::string name = parts[2];
		std::string value = parts[4];

		MY_CHECKPOS("scrollbar",0);

		v2s32 pos = padding;
		pos.X += stof(v_pos[0]) * (float) spacing.X;
		pos.Y += stof(v_pos[1]) * (float) spacing.Y;

		if (v_dim.size() != 2) {
			errorstream<< "Invalid size for element " << "scrollbar"
				<< "specified: \"" << parts[1] << "\"" << std::endl;
			return;
		}

		v2s32 dim;
		dim.X = stof(v_dim[0]) * (float) spacing.X;
		dim.Y = stof(v_dim[1]) * (float) spacing.Y;

		core::rect<s32> rect =
				core::rect<s32>(pos.X, pos.Y, pos.X + dim.X, pos.Y + dim.Y);

		FieldSpec spec(
				name,
				L"",
				L"",
				258+m_fields.size()
			);

		bool is_horizontal = true;

		if (parts[2] == "vertical")
			is_horizontal = false;

		spec.ftype = f_ScrollBar;
		spec.send  = true;
		gui::IGUIScrollBar* e =
				Environment->addScrollBar(is_horizontal,rect,this,spec.fid);

		e->setMax(1000);
		e->setMin(0);
		e->setPos(stoi(parts[4]));
		e->setSmallStep(10);
		e->setLargeStep(100);

		m_scrollbars.push_back(std::pair<FieldSpec,gui::IGUIScrollBar*>(spec,e));
		m_fields.push_back(spec);
		return;
	}
	errorstream<< "Invalid scrollbar element(" << parts.size() << "): '" << element << "'"  << std::endl;
}

void GUIFormSpecMenu::parseImage(parserData* data,std::string element)
{
	std::vector<std::string> parts = split(element,';');

	if ((parts.size() == 3) ||
		((parts.size() > 3) && (m_formspec_version > FORMSPEC_API_VERSION)))
	{
		std::vector<std::string> v_pos = split(parts[0],',');
		std::vector<std::string> v_geom = split(parts[1],',');
		std::string name = unescape_string(parts[2]);

		MY_CHECKPOS("image",0);
		MY_CHECKGEOM("image",1);

		v2s32 pos = padding + AbsoluteRect.UpperLeftCorner;
		pos.X += stof(v_pos[0]) * (float) spacing.X;
		pos.Y += stof(v_pos[1]) * (float) spacing.Y;

		v2s32 geom;
		geom.X = stof(v_geom[0]) * (float)imgsize.X;
		geom.Y = stof(v_geom[1]) * (float)imgsize.Y;

		if(!data->explicit_size)
			errorstream<<"WARNING: invalid use of image without a size[] element"<<std::endl;
		m_images.push_back(ImageDrawSpec(name, pos, geom));
		return;
	}

	if (parts.size() == 2) {
		std::vector<std::string> v_pos = split(parts[0],',');
		std::string name = unescape_string(parts[1]);

		MY_CHECKPOS("image",0);

		v2s32 pos = padding + AbsoluteRect.UpperLeftCorner;
		pos.X += stof(v_pos[0]) * (float) spacing.X;
		pos.Y += stof(v_pos[1]) * (float) spacing.Y;

		if(!data->explicit_size)
			errorstream<<"WARNING: invalid use of image without a size[] element"<<std::endl;
		m_images.push_back(ImageDrawSpec(name, pos));
		return;
	}
	errorstream<< "Invalid image element(" << parts.size() << "): '" << element << "'"  << std::endl;
}

void GUIFormSpecMenu::parseItemImage(parserData* data,std::string element)
{
	std::vector<std::string> parts = split(element,';');

	if ((parts.size() == 3) ||
		((parts.size() > 3) && (m_formspec_version > FORMSPEC_API_VERSION)))
	{
		std::vector<std::string> v_pos = split(parts[0],',');
		std::vector<std::string> v_geom = split(parts[1],',');
		std::string name = parts[2];

		MY_CHECKPOS("itemimage",0);
		MY_CHECKGEOM("itemimage",1);

		v2s32 pos = padding + AbsoluteRect.UpperLeftCorner;
		pos.X += stof(v_pos[0]) * (float) spacing.X;
		pos.Y += stof(v_pos[1]) * (float) spacing.Y;

		v2s32 geom;
		geom.X = stof(v_geom[0]) * (float)imgsize.X;
		geom.Y = stof(v_geom[1]) * (float)imgsize.Y;

		if(!data->explicit_size)
			errorstream<<"WARNING: invalid use of item_image without a size[] element"<<std::endl;
		m_itemimages.push_back(ImageDrawSpec(name, pos, geom));
		return;
	}
	errorstream<< "Invalid ItemImage element(" << parts.size() << "): '" << element << "'"  << std::endl;
}

void GUIFormSpecMenu::parseButton(parserData* data,std::string element,
		std::string type)
{
	std::vector<std::string> parts = split(element,';');

	if ((parts.size() == 4) ||
		((parts.size() > 4) && (m_formspec_version > FORMSPEC_API_VERSION)))
	{
		std::vector<std::string> v_pos = split(parts[0],',');
		std::vector<std::string> v_geom = split(parts[1],',');
		std::string name = parts[2];
		std::string label = parts[3];

		MY_CHECKPOS("button",0);
		MY_CHECKGEOM("button",1);

		v2s32 pos = padding;
		pos.X += stof(v_pos[0]) * (float)spacing.X;
		pos.Y += stof(v_pos[1]) * (float)spacing.Y;

		v2s32 geom;
		geom.X = (stof(v_geom[0]) * (float)spacing.X)-(spacing.X-imgsize.X);
		pos.Y += (stof(v_geom[1]) * (float)imgsize.Y)/2;

		core::rect<s32> rect =
				core::rect<s32>(pos.X, pos.Y - m_btn_height,
						pos.X + geom.X, pos.Y + m_btn_height);

		if(!data->explicit_size)
			errorstream<<"WARNING: invalid use of button without a size[] element"<<std::endl;

		label = unescape_string(label);

		std::wstring wlabel = utf8_to_wide(label);

		FieldSpec spec(
			name,
			wlabel,
			L"",
			258+m_fields.size()
		);
		spec.ftype = f_Button;
		if(type == "button_exit")
			spec.is_exit = true;
		gui::IGUIButton* e = Environment->addButton(rect, this, spec.fid,
				spec.flabel.c_str());

		if (spec.fname == data->focused_fieldname) {
			Environment->setFocus(e);
		}

		m_fields.push_back(spec);
		return;
	}
	errorstream<< "Invalid button element(" << parts.size() << "): '" << element << "'"  << std::endl;
}

void GUIFormSpecMenu::parseBackground(parserData* data,std::string element)
{
	std::vector<std::string> parts = split(element,';');

	if (((parts.size() == 3) || (parts.size() == 4)) ||
		((parts.size() > 4) && (m_formspec_version > FORMSPEC_API_VERSION)))
	{
		std::vector<std::string> v_pos = split(parts[0],',');
		std::vector<std::string> v_geom = split(parts[1],',');
		std::string name = unescape_string(parts[2]);

		MY_CHECKPOS("background",0);
		MY_CHECKGEOM("background",1);

		v2s32 pos = padding + AbsoluteRect.UpperLeftCorner;
		pos.X += stof(v_pos[0]) * (float)spacing.X - ((float)spacing.X-(float)imgsize.X)/2;
		pos.Y += stof(v_pos[1]) * (float)spacing.Y - ((float)spacing.Y-(float)imgsize.Y)/2;

		v2s32 geom;
		geom.X = stof(v_geom[0]) * (float)spacing.X;
		geom.Y = stof(v_geom[1]) * (float)spacing.Y;

		if (parts.size() == 4) {
			m_clipbackground = is_yes(parts[3]);
			if (m_clipbackground) {
				pos.X = stoi(v_pos[0]); //acts as offset
				pos.Y = stoi(v_pos[1]); //acts as offset
			}
		}

		if(!data->explicit_size)
			errorstream<<"WARNING: invalid use of background without a size[] element"<<std::endl;
		m_backgrounds.push_back(ImageDrawSpec(name, pos, geom));
		return;
	}
	errorstream<< "Invalid background element(" << parts.size() << "): '" << element << "'"  << std::endl;
}

void GUIFormSpecMenu::parseTableOptions(parserData* data,std::string element)
{
	std::vector<std::string> parts = split(element,';');

	data->table_options.clear();
	for (size_t i = 0; i < parts.size(); ++i) {
		// Parse table option
		std::string opt = unescape_string(parts[i]);
		data->table_options.push_back(GUITable::splitOption(opt));
	}
}

void GUIFormSpecMenu::parseTableColumns(parserData* data,std::string element)
{
	std::vector<std::string> parts = split(element,';');

	data->table_columns.clear();
	for (size_t i = 0; i < parts.size(); ++i) {
		std::vector<std::string> col_parts = split(parts[i],',');
		GUITable::TableColumn column;
		// Parse column type
		if (!col_parts.empty())
			column.type = col_parts[0];
		// Parse column options
		for (size_t j = 1; j < col_parts.size(); ++j) {
			std::string opt = unescape_string(col_parts[j]);
			column.options.push_back(GUITable::splitOption(opt));
		}
		data->table_columns.push_back(column);
	}
}

void GUIFormSpecMenu::parseTable(parserData* data,std::string element)
{
	std::vector<std::string> parts = split(element,';');

	if (((parts.size() == 4) || (parts.size() == 5)) ||
		((parts.size() > 5) && (m_formspec_version > FORMSPEC_API_VERSION)))
	{
		std::vector<std::string> v_pos = split(parts[0],',');
		std::vector<std::string> v_geom = split(parts[1],',');
		std::string name = parts[2];
		std::vector<std::string> items = split(parts[3],',');
		std::string str_initial_selection = "";
		std::string str_transparent = "false";

		if (parts.size() >= 5)
			str_initial_selection = parts[4];

		MY_CHECKPOS("table",0);
		MY_CHECKGEOM("table",1);

		v2s32 pos = padding;
		pos.X += stof(v_pos[0]) * (float)spacing.X;
		pos.Y += stof(v_pos[1]) * (float)spacing.Y;

		v2s32 geom;
		geom.X = stof(v_geom[0]) * (float)spacing.X;
		geom.Y = stof(v_geom[1]) * (float)spacing.Y;


		core::rect<s32> rect = core::rect<s32>(pos.X, pos.Y, pos.X+geom.X, pos.Y+geom.Y);

		FieldSpec spec(
			name,
			L"",
			L"",
			258+m_fields.size()
		);

		spec.ftype = f_Table;

		for (unsigned int i = 0; i < items.size(); ++i) {
			items[i] = unescape_string(items[i]);
		}

		//now really show table
		GUITable *e = new GUITable(Environment, this, spec.fid, rect,
				m_tsrc);

		if (spec.fname == data->focused_fieldname) {
			Environment->setFocus(e);
		}

		e->setTable(data->table_options, data->table_columns, items);

		if (data->table_dyndata.find(name) != data->table_dyndata.end()) {
			e->setDynamicData(data->table_dyndata[name]);
		}

		if ((str_initial_selection != "") &&
				(str_initial_selection != "0"))
			e->setSelected(stoi(str_initial_selection.c_str()));

		m_tables.push_back(std::pair<FieldSpec,GUITable*>(spec, e));
		m_fields.push_back(spec);
		return;
	}
	errorstream<< "Invalid table element(" << parts.size() << "): '" << element << "'"  << std::endl;
}

void GUIFormSpecMenu::parseTextList(parserData* data,std::string element)
{
	std::vector<std::string> parts = split(element,';');

	if (((parts.size() == 4) || (parts.size() == 5) || (parts.size() == 6)) ||
		((parts.size() > 6) && (m_formspec_version > FORMSPEC_API_VERSION)))
	{
		std::vector<std::string> v_pos = split(parts[0],',');
		std::vector<std::string> v_geom = split(parts[1],',');
		std::string name = parts[2];
		std::vector<std::string> items = split(parts[3],',');
		std::string str_initial_selection = "";
		std::string str_transparent = "false";

		if (parts.size() >= 5)
			str_initial_selection = parts[4];

		if (parts.size() >= 6)
			str_transparent = parts[5];

		MY_CHECKPOS("textlist",0);
		MY_CHECKGEOM("textlist",1);

		v2s32 pos = padding;
		pos.X += stof(v_pos[0]) * (float)spacing.X;
		pos.Y += stof(v_pos[1]) * (float)spacing.Y;

		v2s32 geom;
		geom.X = stof(v_geom[0]) * (float)spacing.X;
		geom.Y = stof(v_geom[1]) * (float)spacing.Y;


		core::rect<s32> rect = core::rect<s32>(pos.X, pos.Y, pos.X+geom.X, pos.Y+geom.Y);

		FieldSpec spec(
			name,
			L"",
			L"",
			258+m_fields.size()
		);

		spec.ftype = f_Table;

		for (unsigned int i = 0; i < items.size(); ++i) {
			items[i] = unescape_string(items[i]);
		}

		//now really show list
		GUITable *e = new GUITable(Environment, this, spec.fid, rect,
				m_tsrc);

		if (spec.fname == data->focused_fieldname) {
			Environment->setFocus(e);
		}

		e->setTextList(items, is_yes(str_transparent));

		if (data->table_dyndata.find(name) != data->table_dyndata.end()) {
			e->setDynamicData(data->table_dyndata[name]);
		}

		if ((str_initial_selection != "") &&
				(str_initial_selection != "0"))
			e->setSelected(stoi(str_initial_selection.c_str()));

		m_tables.push_back(std::pair<FieldSpec,GUITable*>(spec, e));
		m_fields.push_back(spec);
		return;
	}
	errorstream<< "Invalid textlist element(" << parts.size() << "): '" << element << "'"  << std::endl;
}


void GUIFormSpecMenu::parseDropDown(parserData* data,std::string element)
{
	std::vector<std::string> parts = split(element,';');

	if ((parts.size() == 5) ||
		((parts.size() > 5) && (m_formspec_version > FORMSPEC_API_VERSION)))
	{
		std::vector<std::string> v_pos = split(parts[0],',');
		std::string name = parts[2];
		std::vector<std::string> items = split(parts[3],',');
		std::string str_initial_selection = "";
		str_initial_selection = parts[4];

		MY_CHECKPOS("dropdown",0);

		v2s32 pos = padding;
		pos.X += stof(v_pos[0]) * (float)spacing.X;
		pos.Y += stof(v_pos[1]) * (float)spacing.Y;

		s32 width = stof(parts[1]) * (float)spacing.Y;

		core::rect<s32> rect = core::rect<s32>(pos.X, pos.Y,
				pos.X + width, pos.Y + (m_btn_height * 2));

		FieldSpec spec(
			name,
			L"",
			L"",
			258+m_fields.size()
		);

		spec.ftype = f_DropDown;
		spec.send = true;

		//now really show list
		gui::IGUIComboBox *e = Environment->addComboBox(rect, this,spec.fid);

		if (spec.fname == data->focused_fieldname) {
			Environment->setFocus(e);
		}

		for (unsigned int i=0; i < items.size(); i++) {
			e->addItem(utf8_to_wide(items[i]).c_str());
		}

		if (str_initial_selection != "")
			e->setSelected(stoi(str_initial_selection.c_str())-1);

		m_fields.push_back(spec);
		return;
	}
	errorstream << "Invalid dropdown element(" << parts.size() << "): '"
				<< element << "'"  << std::endl;
}

void GUIFormSpecMenu::parsePwdField(parserData* data,std::string element)
{
	std::vector<std::string> parts = split(element,';');

	if ((parts.size() == 4) ||
		((parts.size() > 4) && (m_formspec_version > FORMSPEC_API_VERSION)))
	{
		std::vector<std::string> v_pos = split(parts[0],',');
		std::vector<std::string> v_geom = split(parts[1],',');
		std::string name = parts[2];
		std::string label = parts[3];

		MY_CHECKPOS("pwdfield",0);
		MY_CHECKGEOM("pwdfield",1);

		v2s32 pos;
		pos.X += stof(v_pos[0]) * (float)spacing.X;
		pos.Y += stof(v_pos[1]) * (float)spacing.Y;

		v2s32 geom;
		geom.X = (stof(v_geom[0]) * (float)spacing.X)-(spacing.X-imgsize.X);

		pos.Y += (stof(v_geom[1]) * (float)imgsize.Y)/2;
		pos.Y -= m_btn_height;
		geom.Y = m_btn_height*2;

		core::rect<s32> rect = core::rect<s32>(pos.X, pos.Y, pos.X+geom.X, pos.Y+geom.Y);

		label = unescape_string(label);

		std::wstring wlabel = utf8_to_wide(label);

		FieldSpec spec(
			name,
			wlabel,
			L"",
			258+m_fields.size()
			);

		spec.send = true;
		gui::IGUIEditBox * e = Environment->addEditBox(0, rect, true, this, spec.fid);

		if (spec.fname == data->focused_fieldname) {
			Environment->setFocus(e);
		}

		if (label.length() >= 1)
		{
			int font_height = g_fontengine->getTextHeight();
			rect.UpperLeftCorner.Y -= font_height;
			rect.LowerRightCorner.Y = rect.UpperLeftCorner.Y + font_height;
			Environment->addStaticText(spec.flabel.c_str(), rect, false, true, this, 0);
		}

		e->setPasswordBox(true,L'*');

		irr::SEvent evt;
		evt.EventType            = EET_KEY_INPUT_EVENT;
		evt.KeyInput.Key         = KEY_END;
		evt.KeyInput.Char        = 0;
		evt.KeyInput.Control     = 0;
		evt.KeyInput.Shift       = 0;
		evt.KeyInput.PressedDown = true;
		e->OnEvent(evt);
		m_fields.push_back(spec);
		return;
	}
	errorstream<< "Invalid pwdfield element(" << parts.size() << "): '" << element << "'"  << std::endl;
}

void GUIFormSpecMenu::parseSimpleField(parserData* data,
		std::vector<std::string> &parts)
{
	std::string name = parts[0];
	std::string label = parts[1];
	std::string default_val = parts[2];

	core::rect<s32> rect;

	if(data->explicit_size)
		errorstream<<"WARNING: invalid use of unpositioned \"field\" in inventory"<<std::endl;

	v2s32 pos = padding + AbsoluteRect.UpperLeftCorner;
	pos.Y = ((m_fields.size()+2)*60);
	v2s32 size = DesiredRect.getSize();

	rect = core::rect<s32>(size.X / 2 - 150, pos.Y,
			(size.X / 2 - 150) + 300, pos.Y + (m_btn_height*2));


	if(m_form_src)
		default_val = m_form_src->resolveText(default_val);

	default_val = unescape_string(default_val);
	label = unescape_string(label);

	std::wstring wlabel = utf8_to_wide(label);

	FieldSpec spec(
		name,
		wlabel,
		utf8_to_wide(default_val),
		258+m_fields.size()
	);

	if (name == "")
	{
		// spec field id to 0, this stops submit searching for a value that isn't there
		Environment->addStaticText(spec.flabel.c_str(), rect, false, true, this, spec.fid);
	}
	else
	{
		spec.send = true;
		gui::IGUIElement *e;
#if USE_FREETYPE && IRRLICHT_VERSION_MAJOR == 1 && IRRLICHT_VERSION_MINOR < 9
		if (g_settings->getBool("freetype")) {
			e = (gui::IGUIElement *) new gui::intlGUIEditBox(spec.fdefault.c_str(),
				true, Environment, this, spec.fid, rect);
		} else {
#else
		{
#endif
			e = Environment->addEditBox(spec.fdefault.c_str(), rect, true, this, spec.fid);
		}
		if (spec.fname == data->focused_fieldname) {
			Environment->setFocus(e);
		}

		irr::SEvent evt;
		evt.EventType            = EET_KEY_INPUT_EVENT;
		evt.KeyInput.Key         = KEY_END;
		evt.KeyInput.Char        = 0;
		evt.KeyInput.Control     = 0;
		evt.KeyInput.Shift       = 0;
		evt.KeyInput.PressedDown = true;
		e->OnEvent(evt);

		if (label.length() >= 1)
		{
			int font_height = g_fontengine->getTextHeight();
			rect.UpperLeftCorner.Y -= font_height;
			rect.LowerRightCorner.Y = rect.UpperLeftCorner.Y + font_height;
			Environment->addStaticText(spec.flabel.c_str(), rect, false, true, this, 0);
		}
	}

	m_fields.push_back(spec);
}

void GUIFormSpecMenu::parseTextArea(parserData* data,
		std::vector<std::string>& parts,std::string type)
{

	std::vector<std::string> v_pos = split(parts[0],',');
	std::vector<std::string> v_geom = split(parts[1],',');
	std::string name = parts[2];
	std::string label = parts[3];
	std::string default_val = parts[4];

	MY_CHECKPOS(type,0);
	MY_CHECKGEOM(type,1);

	v2s32 pos;
	pos.X = stof(v_pos[0]) * (float) spacing.X;
	pos.Y = stof(v_pos[1]) * (float) spacing.Y;

	v2s32 geom;

	geom.X = (stof(v_geom[0]) * (float)spacing.X)-(spacing.X-imgsize.X);

	if (type == "textarea")
	{
		geom.Y = (stof(v_geom[1]) * (float)imgsize.Y) - (spacing.Y-imgsize.Y);
		pos.Y += m_btn_height;
	}
	else
	{
		pos.Y += (stof(v_geom[1]) * (float)imgsize.Y)/2;
		pos.Y -= m_btn_height;
		geom.Y = m_btn_height*2;
	}

	core::rect<s32> rect = core::rect<s32>(pos.X, pos.Y, pos.X+geom.X, pos.Y+geom.Y);

	if(!data->explicit_size)
		errorstream<<"WARNING: invalid use of positioned "<<type<<" without a size[] element"<<std::endl;

	if(m_form_src)
		default_val = m_form_src->resolveText(default_val);


	default_val = unescape_string(default_val);
	label = unescape_string(label);

	std::wstring wlabel = utf8_to_wide(label);

	FieldSpec spec(
		name,
		wlabel,
		utf8_to_wide(default_val),
		258+m_fields.size()
	);

	if (name == "")
	{
		// spec field id to 0, this stops submit searching for a value that isn't there
		Environment->addStaticText(spec.flabel.c_str(), rect, false, true, this, spec.fid);
	}
	else
	{
		spec.send = true;

		gui::IGUIEditBox *e;
#if USE_FREETYPE && IRRLICHT_VERSION_MAJOR == 1 && IRRLICHT_VERSION_MINOR < 9
		if (g_settings->getBool("freetype")) {
			e = (gui::IGUIEditBox *) new gui::intlGUIEditBox(spec.fdefault.c_str(),
				true, Environment, this, spec.fid, rect);
		} else {
#else
		{
#endif
			e = Environment->addEditBox(spec.fdefault.c_str(), rect, true, this, spec.fid);
		}

		if (spec.fname == data->focused_fieldname) {
			Environment->setFocus(e);
		}

		if (type == "textarea")
		{
			e->setMultiLine(true);
			e->setWordWrap(true);
			e->setTextAlignment(gui::EGUIA_UPPERLEFT, gui::EGUIA_UPPERLEFT);
		} else {
			irr::SEvent evt;
			evt.EventType            = EET_KEY_INPUT_EVENT;
			evt.KeyInput.Key         = KEY_END;
			evt.KeyInput.Char        = 0;
			evt.KeyInput.Control     = 0;
			evt.KeyInput.Shift       = 0;
			evt.KeyInput.PressedDown = true;
			e->OnEvent(evt);
		}

		if (label.length() >= 1)
		{
			int font_height = g_fontengine->getTextHeight();
			rect.UpperLeftCorner.Y -= font_height;
			rect.LowerRightCorner.Y = rect.UpperLeftCorner.Y + font_height;
			Environment->addStaticText(spec.flabel.c_str(), rect, false, true, this, 0);
		}
	}
	m_fields.push_back(spec);
}

void GUIFormSpecMenu::parseField(parserData* data,std::string element,
		std::string type)
{
	std::vector<std::string> parts = split(element,';');

	if (parts.size() == 3 || parts.size() == 4) {
		parseSimpleField(data,parts);
		return;
	}

	if ((parts.size() == 5) ||
		((parts.size() > 5) && (m_formspec_version > FORMSPEC_API_VERSION)))
	{
		parseTextArea(data,parts,type);
		return;
	}
	errorstream<< "Invalid field element(" << parts.size() << "): '" << element << "'"  << std::endl;
}

void GUIFormSpecMenu::parseLabel(parserData* data,std::string element)
{
	std::vector<std::string> parts = split(element,';');

	if ((parts.size() == 2) ||
		((parts.size() > 2) && (m_formspec_version > FORMSPEC_API_VERSION)))
	{
		std::vector<std::string> v_pos = split(parts[0],',');
		std::string text = parts[1];

		MY_CHECKPOS("label",0);

		v2s32 pos = padding;
		pos.X += stof(v_pos[0]) * (float)spacing.X;
		pos.Y += (stof(v_pos[1]) + 7.0/30.0) * (float)spacing.Y;

		if(!data->explicit_size)
			errorstream<<"WARNING: invalid use of label without a size[] element"<<std::endl;

		text = unescape_string(text);
		std::vector<std::string> lines = split(text, '\n');

		for (unsigned int i = 0; i != lines.size(); i++) {
			// Lines are spaced at the nominal distance of
			// 2/5 inventory slot, even if the font doesn't
			// quite match that.  This provides consistent
			// form layout, at the expense of sometimes
			// having sub-optimal spacing for the font.
			// We multiply by 2 and then divide by 5, rather
			// than multiply by 0.4, to get exact results
			// in the integer cases: 0.4 is not exactly
			// representable in binary floating point.
			s32 posy = pos.Y + ((float)i) * spacing.Y * 2.0 / 5.0;
			std::wstring wlabel = utf8_to_wide(lines[i]);
			core::rect<s32> rect = core::rect<s32>(
				pos.X, posy - m_btn_height,
				pos.X + m_font->getDimension(wlabel.c_str()).Width,
				posy + m_btn_height);
			FieldSpec spec(
				"",
				wlabel,
				L"",
				258+m_fields.size()
			);
			gui::IGUIStaticText *e =
				Environment->addStaticText(spec.flabel.c_str(),
					rect, false, false, this, spec.fid);
			e->setTextAlignment(gui::EGUIA_UPPERLEFT,
						gui::EGUIA_CENTER);
			m_fields.push_back(spec);
		}

		return;
	}
	errorstream<< "Invalid label element(" << parts.size() << "): '" << element << "'"  << std::endl;
}

void GUIFormSpecMenu::parseVertLabel(parserData* data,std::string element)
{
	std::vector<std::string> parts = split(element,';');

	if ((parts.size() == 2) ||
		((parts.size() > 2) && (m_formspec_version > FORMSPEC_API_VERSION)))
	{
		std::vector<std::string> v_pos = split(parts[0],',');
		std::wstring text = utf8_to_wide(unescape_string(parts[1]));

		MY_CHECKPOS("vertlabel",1);

		v2s32 pos = padding;
		pos.X += stof(v_pos[0]) * (float)spacing.X;
		pos.Y += stof(v_pos[1]) * (float)spacing.Y;

		core::rect<s32> rect = core::rect<s32>(
				pos.X, pos.Y+((imgsize.Y/2)- m_btn_height),
				pos.X+15, pos.Y +
					font_line_height(m_font)
					* (text.length()+1)
					+((imgsize.Y/2)- m_btn_height));
		//actually text.length() would be correct but adding +1 avoids to break all mods

		if(!data->explicit_size)
			errorstream<<"WARNING: invalid use of label without a size[] element"<<std::endl;

		std::wstring label = L"";

		for (unsigned int i=0; i < text.length(); i++) {
			label += text[i];
			label += L"\n";
		}

		FieldSpec spec(
			"",
			label,
			L"",
			258+m_fields.size()
		);
		gui::IGUIStaticText *t =
				Environment->addStaticText(spec.flabel.c_str(), rect, false, false, this, spec.fid);
		t->setTextAlignment(gui::EGUIA_CENTER, gui::EGUIA_CENTER);
		m_fields.push_back(spec);
		return;
	}
	errorstream<< "Invalid vertlabel element(" << parts.size() << "): '" << element << "'"  << std::endl;
}

void GUIFormSpecMenu::parseImageButton(parserData* data,std::string element,
		std::string type)
{
	std::vector<std::string> parts = split(element,';');

	if ((((parts.size() >= 5) && (parts.size() <= 8)) && (parts.size() != 6)) ||
		((parts.size() > 8) && (m_formspec_version > FORMSPEC_API_VERSION)))
	{
		std::vector<std::string> v_pos = split(parts[0],',');
		std::vector<std::string> v_geom = split(parts[1],',');
		std::string image_name = parts[2];
		std::string name = parts[3];
		std::string label = parts[4];

		MY_CHECKPOS("imagebutton",0);
		MY_CHECKGEOM("imagebutton",1);

		v2s32 pos = padding;
		pos.X += stof(v_pos[0]) * (float)spacing.X;
		pos.Y += stof(v_pos[1]) * (float)spacing.Y;
		v2s32 geom;
		geom.X = (stof(v_geom[0]) * (float)spacing.X)-(spacing.X-imgsize.X);
		geom.Y = (stof(v_geom[1]) * (float)spacing.Y)-(spacing.Y-imgsize.Y);

		bool noclip     = false;
		bool drawborder = true;
		std::string pressed_image_name = "";

		if (parts.size() >= 7) {
			if (parts[5] == "true")
				noclip = true;
			if (parts[6] == "false")
				drawborder = false;
		}

		if (parts.size() >= 8) {
			pressed_image_name = parts[7];
		}

		core::rect<s32> rect = core::rect<s32>(pos.X, pos.Y, pos.X+geom.X, pos.Y+geom.Y);

		if(!data->explicit_size)
			errorstream<<"WARNING: invalid use of image_button without a size[] element"<<std::endl;

		image_name = unescape_string(image_name);
		pressed_image_name = unescape_string(pressed_image_name);
		label = unescape_string(label);

		std::wstring wlabel = utf8_to_wide(label);

		FieldSpec spec(
			name,
			wlabel,
			utf8_to_wide(image_name),
			258+m_fields.size()
		);
		spec.ftype = f_Button;
		if(type == "image_button_exit")
			spec.is_exit = true;

		video::ITexture *texture = 0;
		video::ITexture *pressed_texture = 0;
		texture = m_tsrc->getTexture(image_name);
		if (pressed_image_name != "")
			pressed_texture = m_tsrc->getTexture(pressed_image_name);
		else
			pressed_texture = texture;

		gui::IGUIButton *e = Environment->addButton(rect, this, spec.fid, spec.flabel.c_str());

		if (spec.fname == data->focused_fieldname) {
			Environment->setFocus(e);
		}

		e->setUseAlphaChannel(true);
		e->setImage(guiScalingImageButton(
			Environment->getVideoDriver(), texture, geom.X, geom.Y));
		e->setPressedImage(guiScalingImageButton(
			Environment->getVideoDriver(), pressed_texture, geom.X, geom.Y));
		e->setScaleImage(true);
		e->setNotClipped(noclip);
		e->setDrawBorder(drawborder);

		m_fields.push_back(spec);
		return;
	}

	errorstream<< "Invalid imagebutton element(" << parts.size() << "): '" << element << "'"  << std::endl;
}

void GUIFormSpecMenu::parseTabHeader(parserData* data,std::string element)
{
	std::vector<std::string> parts = split(element,';');

	if (((parts.size() == 4) || (parts.size() == 6)) ||
		((parts.size() > 6) && (m_formspec_version > FORMSPEC_API_VERSION)))
	{
		std::vector<std::string> v_pos = split(parts[0],',');
		std::string name = parts[1];
		std::vector<std::string> buttons = split(parts[2],',');
		std::string str_index = parts[3];
		bool show_background = true;
		bool show_border = true;
		int tab_index = stoi(str_index) -1;

		MY_CHECKPOS("tabheader",0);

		if (parts.size() == 6) {
			if (parts[4] == "true")
				show_background = false;
			if (parts[5] == "false")
				show_border = false;
		}

		FieldSpec spec(
			name,
			L"",
			L"",
			258+m_fields.size()
		);

		spec.ftype = f_TabHeader;

		v2s32 pos(0,0);
		pos.X += stof(v_pos[0]) * (float)spacing.X;
		pos.Y += stof(v_pos[1]) * (float)spacing.Y - m_btn_height * 2;
		v2s32 geom;
		geom.X = DesiredRect.getWidth();
		geom.Y = m_btn_height*2;

		core::rect<s32> rect = core::rect<s32>(pos.X, pos.Y, pos.X+geom.X,
				pos.Y+geom.Y);

		gui::IGUITabControl *e = Environment->addTabControl(rect, this,
				show_background, show_border, spec.fid);
		e->setAlignment(irr::gui::EGUIA_UPPERLEFT, irr::gui::EGUIA_UPPERLEFT,
				irr::gui::EGUIA_UPPERLEFT, irr::gui::EGUIA_LOWERRIGHT);
		e->setTabHeight(m_btn_height*2);

		if (spec.fname == data->focused_fieldname) {
			Environment->setFocus(e);
		}

		e->setNotClipped(true);

		for (unsigned int i = 0; i < buttons.size(); i++) {
			e->addTab(utf8_to_wide(buttons[i]).c_str(), -1);
		}

		if ((tab_index >= 0) &&
				(buttons.size() < INT_MAX) &&
				(tab_index < (int) buttons.size()))
			e->setActiveTab(tab_index);

		m_fields.push_back(spec);
		return;
	}
	errorstream << "Invalid TabHeader element(" << parts.size() << "): '"
			<< element << "'"  << std::endl;
}

void GUIFormSpecMenu::parseItemImageButton(parserData* data,std::string element)
{

	if (m_gamedef == 0) {
		errorstream <<
				"WARNING: invalid use of item_image_button with m_gamedef==0"
				<< std::endl;
		return;
	}

	std::vector<std::string> parts = split(element,';');

	if ((parts.size() == 5) ||
		((parts.size() > 5) && (m_formspec_version > FORMSPEC_API_VERSION)))
	{
		std::vector<std::string> v_pos = split(parts[0],',');
		std::vector<std::string> v_geom = split(parts[1],',');
		std::string item_name = parts[2];
		std::string name = parts[3];
		std::string label = parts[4];

		MY_CHECKPOS("itemimagebutton",0);
		MY_CHECKGEOM("itemimagebutton",1);

		v2s32 pos = padding;
		pos.X += stof(v_pos[0]) * (float)spacing.X;
		pos.Y += stof(v_pos[1]) * (float)spacing.Y;
		v2s32 geom;
		geom.X = (stof(v_geom[0]) * (float)spacing.X)-(spacing.X-imgsize.X);
		geom.Y = (stof(v_geom[1]) * (float)spacing.Y)-(spacing.Y-imgsize.Y);

		core::rect<s32> rect = core::rect<s32>(pos.X, pos.Y, pos.X+geom.X, pos.Y+geom.Y);

		if(!data->explicit_size)
			errorstream<<"WARNING: invalid use of item_image_button without a size[] element"<<std::endl;

		IItemDefManager *idef = m_gamedef->idef();
		ItemStack item;
		item.deSerialize(item_name, idef);
		video::ITexture *texture = idef->getInventoryTexture(item.getDefinition(idef).name, m_gamedef);

		m_tooltips[name] =
			TooltipSpec(item.getDefinition(idef).description,
						m_default_tooltip_bgcolor,
						m_default_tooltip_color);

		label = unescape_string(label);
		FieldSpec spec(
			name,
			utf8_to_wide(label),
			utf8_to_wide(item_name),
			258 + m_fields.size()
		);

		gui::IGUIButton *e = Environment->addButton(rect, this, spec.fid, spec.flabel.c_str());

		if (spec.fname == data->focused_fieldname) {
			Environment->setFocus(e);
		}

		e->setUseAlphaChannel(true);
		e->setImage(guiScalingImageButton(Environment->getVideoDriver(), texture, geom.X, geom.Y));
		e->setPressedImage(guiScalingImageButton(Environment->getVideoDriver(), texture, geom.X, geom.Y));
		e->setScaleImage(true);
		spec.ftype = f_Button;
		rect+=data->basepos-padding;
		spec.rect=rect;
		m_fields.push_back(spec);
		return;
	}
	errorstream<< "Invalid ItemImagebutton element(" << parts.size() << "): '" << element << "'"  << std::endl;
}

void GUIFormSpecMenu::parseBox(parserData* data,std::string element)
{
	std::vector<std::string> parts = split(element,';');

	if ((parts.size() == 3) ||
		((parts.size() > 3) && (m_formspec_version > FORMSPEC_API_VERSION)))
	{
		std::vector<std::string> v_pos = split(parts[0],',');
		std::vector<std::string> v_geom = split(parts[1],',');

		MY_CHECKPOS("box",0);
		MY_CHECKGEOM("box",1);

		v2s32 pos = padding + AbsoluteRect.UpperLeftCorner;
		pos.X += stof(v_pos[0]) * (float) spacing.X;
		pos.Y += stof(v_pos[1]) * (float) spacing.Y;

		v2s32 geom;
		geom.X = stof(v_geom[0]) * (float)spacing.X;
		geom.Y = stof(v_geom[1]) * (float)spacing.Y;

		video::SColor tmp_color;

		if (parseColorString(parts[2], tmp_color, false)) {
			BoxDrawSpec spec(pos, geom, tmp_color);

			m_boxes.push_back(spec);
		}
		else {
			errorstream<< "Invalid Box element(" << parts.size() << "): '" << element << "'  INVALID COLOR"  << std::endl;
		}
		return;
	}
	errorstream<< "Invalid Box element(" << parts.size() << "): '" << element << "'"  << std::endl;
}

void GUIFormSpecMenu::parseBackgroundColor(parserData* data,std::string element)
{
	std::vector<std::string> parts = split(element,';');

	if (((parts.size() == 1) || (parts.size() == 2)) ||
		((parts.size() > 2) && (m_formspec_version > FORMSPEC_API_VERSION)))
	{
		parseColorString(parts[0],m_bgcolor,false);

		if (parts.size() == 2) {
			std::string fullscreen = parts[1];
			m_bgfullscreen = is_yes(fullscreen);
		}
		return;
	}
	errorstream<< "Invalid bgcolor element(" << parts.size() << "): '" << element << "'"  << std::endl;
}

void GUIFormSpecMenu::parseListColors(parserData* data,std::string element)
{
	std::vector<std::string> parts = split(element,';');

	if (((parts.size() == 2) || (parts.size() == 3) || (parts.size() == 5)) ||
		((parts.size() > 5) && (m_formspec_version > FORMSPEC_API_VERSION)))
	{
		parseColorString(parts[0], m_slotbg_n, false);
		parseColorString(parts[1], m_slotbg_h, false);

		if (parts.size() >= 3) {
			if (parseColorString(parts[2], m_slotbordercolor, false)) {
				m_slotborder = true;
			}
		}
		if (parts.size() == 5) {
			video::SColor tmp_color;

			if (parseColorString(parts[3], tmp_color, false))
				m_default_tooltip_bgcolor = tmp_color;
			if (parseColorString(parts[4], tmp_color, false))
				m_default_tooltip_color = tmp_color;
		}
		return;
	}
	errorstream<< "Invalid listcolors element(" << parts.size() << "): '" << element << "'"  << std::endl;
}

void GUIFormSpecMenu::parseTooltip(parserData* data, std::string element)
{
	std::vector<std::string> parts = split(element,';');
	if (parts.size() == 2) {
		std::string name = parts[0];
		m_tooltips[name] = TooltipSpec(unescape_string(parts[1]),
			m_default_tooltip_bgcolor, m_default_tooltip_color);
		return;
	} else if (parts.size() == 4) {
		std::string name = parts[0];
		video::SColor tmp_color1, tmp_color2;
		if ( parseColorString(parts[2], tmp_color1, false) && parseColorString(parts[3], tmp_color2, false) ) {
			m_tooltips[name] = TooltipSpec(unescape_string(parts[1]),
				tmp_color1, tmp_color2);
			return;
		}
	}
	errorstream<< "Invalid tooltip element(" << parts.size() << "): '" << element << "'"  << std::endl;
}

bool GUIFormSpecMenu::parseVersionDirect(std::string data)
{
	//some prechecks
	if (data == "")
		return false;

	std::vector<std::string> parts = split(data,'[');

	if (parts.size() < 2) {
		return false;
	}

	if (parts[0] != "formspec_version") {
		return false;
	}

	if (is_number(parts[1])) {
		m_formspec_version = mystoi(parts[1]);
		return true;
	}

	return false;
}

bool GUIFormSpecMenu::parseSizeDirect(parserData* data, std::string element)
{
	if (element == "")
		return false;

	std::vector<std::string> parts = split(element,'[');

	if (parts.size() < 2)
		return false;

	std::string type = trim(parts[0]);
	std::string description = trim(parts[1]);

	if (type != "size" && type != "invsize")
		return false;

	if (type == "invsize")
		log_deprecated("Deprecated formspec element \"invsize\" is used");

	parseSize(data, description);

	return true;
}

void GUIFormSpecMenu::parseElement(parserData* data, std::string element)
{
	//some prechecks
	if (element == "")
		return;

	std::vector<std::string> parts = split(element,'[');

	// ugly workaround to keep compatibility
	if (parts.size() > 2) {
		if (trim(parts[0]) == "image") {
			for (unsigned int i=2;i< parts.size(); i++) {
				parts[1] += "[" + parts[i];
			}
		}
		else { return; }
	}

	if (parts.size() < 2) {
		return;
	}

	std::string type = trim(parts[0]);
	std::string description = trim(parts[1]);

	if (type == "list") {
		parseList(data,description);
		return;
	}

	if (type == "listring") {
		parseListRing(data, description);
		return;
	}

	if (type == "checkbox") {
		parseCheckbox(data,description);
		return;
	}

	if (type == "image") {
		parseImage(data,description);
		return;
	}

	if (type == "item_image") {
		parseItemImage(data,description);
		return;
	}

	if ((type == "button") || (type == "button_exit")) {
		parseButton(data,description,type);
		return;
	}

	if (type == "background") {
		parseBackground(data,description);
		return;
	}

	if (type == "tableoptions"){
		parseTableOptions(data,description);
		return;
	}

	if (type == "tablecolumns"){
		parseTableColumns(data,description);
		return;
	}

	if (type == "table"){
		parseTable(data,description);
		return;
	}

	if (type == "textlist"){
		parseTextList(data,description);
		return;
	}

	if (type == "dropdown"){
		parseDropDown(data,description);
		return;
	}

	if (type == "pwdfield") {
		parsePwdField(data,description);
		return;
	}

	if ((type == "field") || (type == "textarea")){
		parseField(data,description,type);
		return;
	}

	if (type == "label") {
		parseLabel(data,description);
		return;
	}

	if (type == "vertlabel") {
		parseVertLabel(data,description);
		return;
	}

	if (type == "item_image_button") {
		parseItemImageButton(data,description);
		return;
	}

	if ((type == "image_button") || (type == "image_button_exit")) {
		parseImageButton(data,description,type);
		return;
	}

	if (type == "tabheader") {
		parseTabHeader(data,description);
		return;
	}

	if (type == "box") {
		parseBox(data,description);
		return;
	}

	if (type == "bgcolor") {
		parseBackgroundColor(data,description);
		return;
	}

	if (type == "listcolors") {
		parseListColors(data,description);
		return;
	}

	if (type == "tooltip") {
		parseTooltip(data,description);
		return;
	}

	if (type == "scrollbar") {
		parseScrollBar(data, description);
		return;
	}

	// Ignore others
	infostream
		<< "Unknown DrawSpec: type="<<type<<", data=\""<<description<<"\""
		<<std::endl;
}

void GUIFormSpecMenu::regenerateGui(v2u32 screensize)
{
	/* useless to regenerate without a screensize */
	if ((screensize.X <= 0) || (screensize.Y <= 0)) {
		return;
	}

	parserData mydata;

	//preserve tables
	for (u32 i = 0; i < m_tables.size(); ++i) {
		std::string tablename = m_tables[i].first.fname;
		GUITable *table = m_tables[i].second;
		mydata.table_dyndata[tablename] = table->getDynamicData();
	}

	//set focus
	if (!m_focused_element.empty())
		mydata.focused_fieldname = m_focused_element;

	//preserve focus
	gui::IGUIElement *focused_element = Environment->getFocus();
	if (focused_element && focused_element->getParent() == this) {
		s32 focused_id = focused_element->getID();
		if (focused_id > 257) {
			for (u32 i=0; i<m_fields.size(); i++) {
				if (m_fields[i].fid == focused_id) {
					mydata.focused_fieldname =
						m_fields[i].fname;
					break;
				}
			}
		}
	}

	// Remove children
	removeChildren();

	for (u32 i = 0; i < m_tables.size(); ++i) {
		GUITable *table = m_tables[i].second;
		table->drop();
	}

	mydata.size= v2s32(100,100);
	mydata.screensize = screensize;

	// Base position of contents of form
	mydata.basepos = getBasePos();

	/* Convert m_init_draw_spec to m_inventorylists */

	m_inventorylists.clear();
	m_images.clear();
	m_backgrounds.clear();
	m_itemimages.clear();
	m_tables.clear();
	m_checkboxes.clear();
	m_scrollbars.clear();
	m_fields.clear();
	m_boxes.clear();
	m_tooltips.clear();

	// Set default values (fits old formspec values)
	m_bgcolor = video::SColor(140,0,0,0);
	m_bgfullscreen = false;

	m_slotbg_n = video::SColor(255,128,128,128);
	m_slotbg_h = video::SColor(255,192,192,192);

	m_default_tooltip_bgcolor = video::SColor(255,110,130,60);
	m_default_tooltip_color = video::SColor(255,255,255,255);

	m_slotbordercolor = video::SColor(200,0,0,0);
	m_slotborder = false;

	m_clipbackground = false;
	// Add tooltip
	{
		assert(m_tooltip_element == NULL);
		// Note: parent != this so that the tooltip isn't clipped by the menu rectangle
		m_tooltip_element = Environment->addStaticText(L"",core::rect<s32>(0,0,110,18));
		m_tooltip_element->enableOverrideColor(true);
		m_tooltip_element->setBackgroundColor(m_default_tooltip_bgcolor);
		m_tooltip_element->setDrawBackground(true);
		m_tooltip_element->setDrawBorder(true);
		m_tooltip_element->setOverrideColor(m_default_tooltip_color);
		m_tooltip_element->setTextAlignment(gui::EGUIA_CENTER, gui::EGUIA_CENTER);
		m_tooltip_element->setWordWrap(false);
		//we're not parent so no autograb for this one!
		m_tooltip_element->grab();
	}

	std::vector<std::string> elements = split(m_formspec_string,']');
	unsigned int i = 0;

	/* try to read version from first element only */
	if (elements.size() >= 1) {
		if ( parseVersionDirect(elements[0]) ) {
			i++;
		}
	}

	/* we need size first in order to calculate image scale */
	mydata.explicit_size = false;
	for (; i< elements.size(); i++) {
		if (!parseSizeDirect(&mydata, elements[i])) {
			break;
		}
	}

	if (mydata.explicit_size) {
		// compute scaling for specified form size
		if (m_lock) {
			v2u32 current_screensize = m_device->getVideoDriver()->getScreenSize();
			v2u32 delta = current_screensize - m_lockscreensize;

			if (current_screensize.Y > m_lockscreensize.Y)
				delta.Y /= 2;
			else
				delta.Y = 0;

			if (current_screensize.X > m_lockscreensize.X)
				delta.X /= 2;
			else
				delta.X = 0;

			offset = v2s32(delta.X,delta.Y);

			mydata.screensize = m_lockscreensize;
		} else {
			offset = v2s32(0,0);
		}

		double gui_scaling = g_settings->getFloat("gui_scaling");
		double screen_dpi = porting::getDisplayDensity() * 96;

		double use_imgsize;
		if (m_lock) {
			// In fixed-size mode, inventory image size
			// is 0.53 inch multiplied by the gui_scaling
			// config parameter.  This magic size is chosen
			// to make the main menu (15.5 inventory images
			// wide, including border) just fit into the
			// default window (800 pixels wide) at 96 DPI
			// and default scaling (1.00).
			use_imgsize = 0.5555 * screen_dpi * gui_scaling;
		} else {
			// In variable-size mode, we prefer to make the
			// inventory image size 1/15 of screen height,
			// multiplied by the gui_scaling config parameter.
			// If the preferred size won't fit the whole
			// form on the screen, either horizontally or
			// vertically, then we scale it down to fit.
			// (The magic numbers in the computation of what
			// fits arise from the scaling factors in the
			// following stanza, including the form border,
			// help text space, and 0.1 inventory slot spare.)
			// However, a minimum size is also set, that
			// the image size can't be less than 0.3 inch
			// multiplied by gui_scaling, even if this means
			// the form doesn't fit the screen.
			double prefer_imgsize = mydata.screensize.Y / 15 *
							gui_scaling;
			double fitx_imgsize = mydata.screensize.X /
				((5.0/4.0) * (0.5 + mydata.invsize.X));
			double fity_imgsize = mydata.screensize.Y /
				((15.0/13.0) * (0.85 * mydata.invsize.Y));
			double screen_dpi = porting::getDisplayDensity() * 96;
			double min_imgsize = 0.3 * screen_dpi * gui_scaling;
			use_imgsize = MYMAX(min_imgsize, MYMIN(prefer_imgsize,
				MYMIN(fitx_imgsize, fity_imgsize)));
		}

		// Everything else is scaled in proportion to the
		// inventory image size.  The inventory slot spacing
		// is 5/4 image size horizontally and 15/13 image size
		// vertically.	The padding around the form (incorporating
		// the border of the outer inventory slots) is 3/8
		// image size.	Font height (baseline to baseline)
		// is 2/5 vertical inventory slot spacing, and button
		// half-height is 7/8 of font height.
		imgsize = v2s32(use_imgsize, use_imgsize);
		spacing = v2s32(use_imgsize*5.0/4, use_imgsize*15.0/13);
		padding = v2s32(use_imgsize*3.0/8, use_imgsize*3.0/8);
		m_btn_height = use_imgsize*15.0/13 * 0.35;

		m_font = g_fontengine->getFont();

		mydata.size = v2s32(
			padding.X*2+spacing.X*(mydata.invsize.X-1.0)+imgsize.X,
			padding.Y*2+spacing.Y*(mydata.invsize.Y-1.0)+imgsize.Y + m_btn_height*2.0/3.0
		);
		DesiredRect = mydata.rect = core::rect<s32>(
				mydata.screensize.X/2 - mydata.size.X/2 + offset.X,
				mydata.screensize.Y/2 - mydata.size.Y/2 + offset.Y,
				mydata.screensize.X/2 + mydata.size.X/2 + offset.X,
				mydata.screensize.Y/2 + mydata.size.Y/2 + offset.Y
		);
	} else {
		// Non-size[] form must consist only of text fields and
		// implicit "Proceed" button.  Use default font, and
		// temporary form size which will be recalculated below.
		m_font = g_fontengine->getFont();
		m_btn_height = font_line_height(m_font) * 0.875;
		DesiredRect = core::rect<s32>(
			mydata.screensize.X/2 - 580/2,
			mydata.screensize.Y/2 - 300/2,
			mydata.screensize.X/2 + 580/2,
			mydata.screensize.Y/2 + 300/2
		);
	}
	recalculateAbsolutePosition(false);
	mydata.basepos = getBasePos();
	m_tooltip_element->setOverrideFont(m_font);

	gui::IGUISkin* skin = Environment->getSkin();
	sanity_check(skin != NULL);
	gui::IGUIFont *old_font = skin->getFont();
	skin->setFont(m_font);

	for (; i< elements.size(); i++) {
		parseElement(&mydata, elements[i]);
	}

	// If there are fields without explicit size[], add a "Proceed"
	// button and adjust size to fit all the fields.
	if (m_fields.size() && !mydata.explicit_size) {
		mydata.rect = core::rect<s32>(
				mydata.screensize.X/2 - 580/2,
				mydata.screensize.Y/2 - 300/2,
				mydata.screensize.X/2 + 580/2,
				mydata.screensize.Y/2 + 240/2+(m_fields.size()*60)
		);
		DesiredRect = mydata.rect;
		recalculateAbsolutePosition(false);
		mydata.basepos = getBasePos();

		{
			v2s32 pos = mydata.basepos;
			pos.Y = ((m_fields.size()+2)*60);

			v2s32 size = DesiredRect.getSize();
			mydata.rect =
					core::rect<s32>(size.X/2-70, pos.Y,
							(size.X/2-70)+140, pos.Y + (m_btn_height*2));
			const wchar_t *text = wgettext("Proceed");
			Environment->addButton(mydata.rect, this, 257, text);
			delete[] text;
		}

	}

	//set initial focus if parser didn't set it
	focused_element = Environment->getFocus();
	if (!focused_element
			|| !isMyChild(focused_element)
			|| focused_element->getType() == gui::EGUIET_TAB_CONTROL)
		setInitialFocus();

	skin->setFont(old_font);
}

#ifdef __ANDROID__
bool GUIFormSpecMenu::getAndroidUIInput()
{
	/* no dialog shown */
	if (m_JavaDialogFieldName == "") {
		return false;
	}

	/* still waiting */
	if (porting::getInputDialogState() == -1) {
		return true;
	}

	std::string fieldname = m_JavaDialogFieldName;
	m_JavaDialogFieldName = "";

	/* no value abort dialog processing */
	if (porting::getInputDialogState() != 0) {
		return false;
	}

	for(std::vector<FieldSpec>::iterator iter =  m_fields.begin();
			iter != m_fields.end(); iter++) {

		if (iter->fname != fieldname) {
			continue;
		}
		IGUIElement* tochange = getElementFromId(iter->fid);

		if (tochange == 0) {
			return false;
		}

		if (tochange->getType() != irr::gui::EGUIET_EDIT_BOX) {
			return false;
		}

		std::string text = porting::getInputDialogValue();

		((gui::IGUIEditBox*) tochange)->
			setText(utf8_to_wide(text).c_str());
	}
	return false;
}
#endif

GUIFormSpecMenu::ItemSpec GUIFormSpecMenu::getItemAtPos(v2s32 p) const
{
	core::rect<s32> imgrect(0,0,imgsize.X,imgsize.Y);

	for(u32 i=0; i<m_inventorylists.size(); i++)
	{
		const ListDrawSpec &s = m_inventorylists[i];

		for(s32 i=0; i<s.geom.X*s.geom.Y; i++) {
			s32 item_i = i + s.start_item_i;
			s32 x = (i%s.geom.X) * spacing.X;
			s32 y = (i/s.geom.X) * spacing.Y;
			v2s32 p0(x,y);
			core::rect<s32> rect = imgrect + s.pos + p0;
			if(rect.isPointInside(p))
			{
				return ItemSpec(s.inventoryloc, s.listname, item_i);
			}
		}
	}

	return ItemSpec(InventoryLocation(), "", -1);
}

void GUIFormSpecMenu::drawList(const ListDrawSpec &s, int phase)
{
	video::IVideoDriver* driver = Environment->getVideoDriver();

	Inventory *inv = m_invmgr->getInventory(s.inventoryloc);
	if(!inv){
		infostream<<"GUIFormSpecMenu::drawList(): WARNING: "
				<<"The inventory location "
				<<"\""<<s.inventoryloc.dump()<<"\" doesn't exist"
				<<std::endl;
		return;
	}
	InventoryList *ilist = inv->getList(s.listname);
	if(!ilist){
		infostream<<"GUIFormSpecMenu::drawList(): WARNING: "
				<<"The inventory list \""<<s.listname<<"\" @ \""
				<<s.inventoryloc.dump()<<"\" doesn't exist"
				<<std::endl;
		return;
	}

	core::rect<s32> imgrect(0,0,imgsize.X,imgsize.Y);

	for(s32 i=0; i<s.geom.X*s.geom.Y; i++)
	{
		s32 item_i = i + s.start_item_i;
		if(item_i >= (s32) ilist->getSize())
			break;
		s32 x = (i%s.geom.X) * spacing.X;
		s32 y = (i/s.geom.X) * spacing.Y;
		v2s32 p(x,y);
		core::rect<s32> rect = imgrect + s.pos + p;
		ItemStack item;
		if(ilist)
			item = ilist->getItem(item_i);

		bool selected = m_selected_item
			&& m_invmgr->getInventory(m_selected_item->inventoryloc) == inv
			&& m_selected_item->listname == s.listname
			&& m_selected_item->i == item_i;
		bool hovering = rect.isPointInside(m_pointer);

		if(phase == 0)
		{
			if(hovering)
				driver->draw2DRectangle(m_slotbg_h, rect, &AbsoluteClippingRect);
			else
				driver->draw2DRectangle(m_slotbg_n, rect, &AbsoluteClippingRect);
		}

		//Draw inv slot borders
		if (m_slotborder) {
			s32 x1 = rect.UpperLeftCorner.X;
			s32 y1 = rect.UpperLeftCorner.Y;
			s32 x2 = rect.LowerRightCorner.X;
			s32 y2 = rect.LowerRightCorner.Y;
			s32 border = 1;
			driver->draw2DRectangle(m_slotbordercolor,
				core::rect<s32>(v2s32(x1 - border, y1 - border),
								v2s32(x2 + border, y1)), NULL);
			driver->draw2DRectangle(m_slotbordercolor,
				core::rect<s32>(v2s32(x1 - border, y2),
								v2s32(x2 + border, y2 + border)), NULL);
			driver->draw2DRectangle(m_slotbordercolor,
				core::rect<s32>(v2s32(x1 - border, y1),
								v2s32(x1, y2)), NULL);
			driver->draw2DRectangle(m_slotbordercolor,
				core::rect<s32>(v2s32(x2, y1),
								v2s32(x2 + border, y2)), NULL);
		}

		if(phase == 1)
		{
			// Draw item stack
			if(selected)
			{
				item.takeItem(m_selected_amount);
			}
			if(!item.empty())
			{
				drawItemStack(driver, m_font, item,
						rect, &AbsoluteClippingRect, m_gamedef);
			}

			// Draw tooltip
			std::string tooltip_text = "";
			if (hovering && !m_selected_item)
				tooltip_text = item.getDefinition(m_gamedef->idef()).description;
			if (tooltip_text != "") {
				std::vector<std::string> tt_rows = str_split(tooltip_text, '\n');
				m_tooltip_element->setBackgroundColor(m_default_tooltip_bgcolor);
				m_tooltip_element->setOverrideColor(m_default_tooltip_color);
				m_tooltip_element->setVisible(true);
				this->bringToFront(m_tooltip_element);
				m_tooltip_element->setText(utf8_to_wide(tooltip_text).c_str());
				s32 tooltip_width = m_tooltip_element->getTextWidth() + m_btn_height;
				s32 tooltip_height = m_tooltip_element->getTextHeight() * tt_rows.size() + 5;
				v2u32 screenSize = driver->getScreenSize();
				int tooltip_offset_x = m_btn_height;
				int tooltip_offset_y = m_btn_height;
#ifdef __ANDROID__
				tooltip_offset_x *= 3;
				tooltip_offset_y  = 0;
				if (m_pointer.X > (s32)screenSize.X / 2)
					tooltip_offset_x = (tooltip_offset_x + tooltip_width) * -1;
#endif
				s32 tooltip_x = m_pointer.X + tooltip_offset_x;
				s32 tooltip_y = m_pointer.Y + tooltip_offset_y;
				if (tooltip_x + tooltip_width > (s32)screenSize.X)
					tooltip_x = (s32)screenSize.X - tooltip_width  - m_btn_height;
				if (tooltip_y + tooltip_height > (s32)screenSize.Y)
					tooltip_y = (s32)screenSize.Y - tooltip_height - m_btn_height;
				m_tooltip_element->setRelativePosition(core::rect<s32>(
						core::position2d<s32>(tooltip_x, tooltip_y),
						core::dimension2d<s32>(tooltip_width, tooltip_height)));
			}
		}
	}
}

void GUIFormSpecMenu::drawSelectedItem()
{
	if(!m_selected_item)
		return;

	video::IVideoDriver* driver = Environment->getVideoDriver();

	Inventory *inv = m_invmgr->getInventory(m_selected_item->inventoryloc);
	sanity_check(inv);
	InventoryList *list = inv->getList(m_selected_item->listname);
	sanity_check(list);
	ItemStack stack = list->getItem(m_selected_item->i);
	stack.count = m_selected_amount;

	core::rect<s32> imgrect(0,0,imgsize.X,imgsize.Y);
	core::rect<s32> rect = imgrect + (m_pointer - imgrect.getCenter());
	drawItemStack(driver, m_font, stack, rect, NULL, m_gamedef);
}

void GUIFormSpecMenu::drawMenu()
{
	if(m_form_src){
		std::string newform = m_form_src->getForm();
		if(newform != m_formspec_string){
			m_formspec_string = newform;
			regenerateGui(m_screensize_old);
		}
	}

	gui::IGUISkin* skin = Environment->getSkin();
	sanity_check(skin != NULL);
	gui::IGUIFont *old_font = skin->getFont();
	skin->setFont(m_font);

	updateSelectedItem();

	video::IVideoDriver* driver = Environment->getVideoDriver();

	v2u32 screenSize = driver->getScreenSize();
	core::rect<s32> allbg(0, 0, screenSize.X ,	screenSize.Y);
	if (m_bgfullscreen)
		driver->draw2DRectangle(m_bgcolor, allbg, &allbg);
	else
		driver->draw2DRectangle(m_bgcolor, AbsoluteRect, &AbsoluteClippingRect);

	m_tooltip_element->setVisible(false);

	/*
		Draw backgrounds
	*/
	for(u32 i=0; i<m_backgrounds.size(); i++)
	{
		const ImageDrawSpec &spec = m_backgrounds[i];
		video::ITexture *texture = m_tsrc->getTexture(spec.name);

		if (texture != 0) {
			// Image size on screen
			core::rect<s32> imgrect(0, 0, spec.geom.X, spec.geom.Y);
			// Image rectangle on screen
			core::rect<s32> rect = imgrect + spec.pos;

			if (m_clipbackground) {
				core::dimension2d<s32> absrec_size = AbsoluteRect.getSize();
				rect = core::rect<s32>(AbsoluteRect.UpperLeftCorner.X - spec.pos.X,
									AbsoluteRect.UpperLeftCorner.Y - spec.pos.Y,
									AbsoluteRect.UpperLeftCorner.X + absrec_size.Width + spec.pos.X,
									AbsoluteRect.UpperLeftCorner.Y + absrec_size.Height + spec.pos.Y);
			}

			const video::SColor color(255,255,255,255);
			const video::SColor colors[] = {color,color,color,color};
			draw2DImageFilterScaled(driver, texture, rect,
				core::rect<s32>(core::position2d<s32>(0,0),
						core::dimension2di(texture->getOriginalSize())),
				NULL/*&AbsoluteClippingRect*/, colors, true);
		}
		else {
			errorstream << "GUIFormSpecMenu::drawMenu() Draw backgrounds unable to load texture:" << std::endl;
			errorstream << "\t" << spec.name << std::endl;
		}
	}

	/*
		Draw Boxes
	*/
	for(u32 i=0; i<m_boxes.size(); i++)
	{
		const BoxDrawSpec &spec = m_boxes[i];

		irr::video::SColor todraw = spec.color;

		todraw.setAlpha(140);

		core::rect<s32> rect(spec.pos.X,spec.pos.Y,
							spec.pos.X + spec.geom.X,spec.pos.Y + spec.geom.Y);

		driver->draw2DRectangle(todraw, rect, 0);
	}
	/*
		Draw images
	*/
	for(u32 i=0; i<m_images.size(); i++)
	{
		const ImageDrawSpec &spec = m_images[i];
		video::ITexture *texture = m_tsrc->getTexture(spec.name);

		if (texture != 0) {
			const core::dimension2d<u32>& img_origsize = texture->getOriginalSize();
			// Image size on screen
			core::rect<s32> imgrect;

			if (spec.scale)
				imgrect = core::rect<s32>(0,0,spec.geom.X, spec.geom.Y);
			else {

				imgrect = core::rect<s32>(0,0,img_origsize.Width,img_origsize.Height);
			}
			// Image rectangle on screen
			core::rect<s32> rect = imgrect + spec.pos;
			const video::SColor color(255,255,255,255);
			const video::SColor colors[] = {color,color,color,color};
			draw2DImageFilterScaled(driver, texture, rect,
				core::rect<s32>(core::position2d<s32>(0,0),img_origsize),
				NULL/*&AbsoluteClippingRect*/, colors, true);
		}
		else {
			errorstream << "GUIFormSpecMenu::drawMenu() Draw images unable to load texture:" << std::endl;
			errorstream << "\t" << spec.name << std::endl;
		}
	}

	/*
		Draw item images
	*/
	for(u32 i=0; i<m_itemimages.size(); i++)
	{
		if (m_gamedef == 0)
			break;

		const ImageDrawSpec &spec = m_itemimages[i];
		IItemDefManager *idef = m_gamedef->idef();
		ItemStack item;
		item.deSerialize(spec.name, idef);
		video::ITexture *texture = idef->getInventoryTexture(item.getDefinition(idef).name, m_gamedef);
		// Image size on screen
		core::rect<s32> imgrect(0, 0, spec.geom.X, spec.geom.Y);
		// Image rectangle on screen
		core::rect<s32> rect = imgrect + spec.pos;
		const video::SColor color(255,255,255,255);
		const video::SColor colors[] = {color,color,color,color};
		draw2DImageFilterScaled(driver, texture, rect,
			core::rect<s32>(core::position2d<s32>(0,0),
					core::dimension2di(texture->getOriginalSize())),
			NULL/*&AbsoluteClippingRect*/, colors, true);
	}

	/*
		Draw items
		Phase 0: Item slot rectangles
		Phase 1: Item images; prepare tooltip
	*/
	int start_phase=0;
	for(int phase=start_phase; phase<=1; phase++)
	for(u32 i=0; i<m_inventorylists.size(); i++)
	{
		drawList(m_inventorylists[i], phase);
	}

	/*
		Call base class
	*/
	gui::IGUIElement::draw();

/* TODO find way to show tooltips on touchscreen */
#ifndef HAVE_TOUCHSCREENGUI
	m_pointer = m_device->getCursorControl()->getPosition();
#endif

	/*
		Draw fields/buttons tooltips
	*/
	gui::IGUIElement *hovered =
			Environment->getRootGUIElement()->getElementFromPoint(m_pointer);

	if (hovered != NULL) {
		s32 id = hovered->getID();

		u32 delta = 0;
		if (id == -1) {
			m_old_tooltip_id = id;
			m_old_tooltip = "";
		} else {
			if (id == m_old_tooltip_id) {
				delta = porting::getDeltaMs(m_hovered_time, getTimeMs());
			} else {
				m_hovered_time = getTimeMs();
				m_old_tooltip_id = id;
			}
		}

		if (id != -1 && delta >= m_tooltip_show_delay) {
			for(std::vector<FieldSpec>::iterator iter =  m_fields.begin();
					iter != m_fields.end(); iter++) {
				if ( (iter->fid == id) && (m_tooltips[iter->fname].tooltip != "") ){
					if (m_old_tooltip != m_tooltips[iter->fname].tooltip) {
						m_old_tooltip = m_tooltips[iter->fname].tooltip;
						m_tooltip_element->setText(utf8_to_wide(m_tooltips[iter->fname].tooltip).c_str());
						std::vector<std::string> tt_rows = str_split(m_tooltips[iter->fname].tooltip, '\n');
						s32 tooltip_width = m_tooltip_element->getTextWidth() + m_btn_height;
						s32 tooltip_height = m_tooltip_element->getTextHeight() * tt_rows.size() + 5;
						int tooltip_offset_x = m_btn_height;
						int tooltip_offset_y = m_btn_height;
#ifdef __ANDROID__
						tooltip_offset_x *= 3;
						tooltip_offset_y  = 0;
						if (m_pointer.X > (s32)screenSize.X / 2)
							tooltip_offset_x = (tooltip_offset_x + tooltip_width) * -1;
#endif
						s32 tooltip_x = m_pointer.X + tooltip_offset_x;
						s32 tooltip_y = m_pointer.Y + tooltip_offset_y;
						if (tooltip_x + tooltip_width > (s32)screenSize.X)
							tooltip_x = (s32)screenSize.X - tooltip_width  - m_btn_height;
						if (tooltip_y + tooltip_height > (s32)screenSize.Y)
							tooltip_y = (s32)screenSize.Y - tooltip_height - m_btn_height;
						m_tooltip_element->setRelativePosition(core::rect<s32>(
						core::position2d<s32>(tooltip_x, tooltip_y),
						core::dimension2d<s32>(tooltip_width, tooltip_height)));
					}
					m_tooltip_element->setBackgroundColor(m_tooltips[iter->fname].bgcolor);
					m_tooltip_element->setOverrideColor(m_tooltips[iter->fname].color);
					m_tooltip_element->setVisible(true);
					this->bringToFront(m_tooltip_element);
					break;
				}
			}
		}
	}

	/*
		Draw dragged item stack
	*/
	drawSelectedItem();

	skin->setFont(old_font);
}

void GUIFormSpecMenu::updateSelectedItem()
{
	// If the selected stack has become empty for some reason, deselect it.
	// If the selected stack has become inaccessible, deselect it.
	// If the selected stack has become smaller, adjust m_selected_amount.
	ItemStack selected = verifySelectedItem();

	// WARNING: BLACK MAGIC
	// See if there is a stack suited for our current guess.
	// If such stack does not exist, clear the guess.
	if(m_selected_content_guess.name != "" &&
			selected.name == m_selected_content_guess.name &&
			selected.count == m_selected_content_guess.count){
		// Selected item fits the guess. Skip the black magic.
	}
	else if(m_selected_content_guess.name != ""){
		bool found = false;
		for(u32 i=0; i<m_inventorylists.size() && !found; i++){
			const ListDrawSpec &s = m_inventorylists[i];
			Inventory *inv = m_invmgr->getInventory(s.inventoryloc);
			if(!inv)
				continue;
			InventoryList *list = inv->getList(s.listname);
			if(!list)
				continue;
			for(s32 i=0; i<s.geom.X*s.geom.Y && !found; i++){
				u32 item_i = i + s.start_item_i;
				if(item_i >= list->getSize())
					continue;
				ItemStack stack = list->getItem(item_i);
				if(stack.name == m_selected_content_guess.name &&
						stack.count == m_selected_content_guess.count){
					found = true;
					infostream<<"Client: Changing selected content guess to "
							<<s.inventoryloc.dump()<<" "<<s.listname
							<<" "<<item_i<<std::endl;
					delete m_selected_item;
					m_selected_item = new ItemSpec(s.inventoryloc, s.listname, item_i);
					m_selected_amount = stack.count;
				}
			}
		}
		if(!found){
			infostream<<"Client: Discarding selected content guess: "
					<<m_selected_content_guess.getItemString()<<std::endl;
			m_selected_content_guess.name = "";
		}
	}

	// If craftresult is nonempty and nothing else is selected, select it now.
	if(!m_selected_item)
	{
		for(u32 i=0; i<m_inventorylists.size(); i++)
		{
			const ListDrawSpec &s = m_inventorylists[i];
			if(s.listname == "craftpreview")
			{
				Inventory *inv = m_invmgr->getInventory(s.inventoryloc);
				InventoryList *list = inv->getList("craftresult");
				if(list && list->getSize() >= 1 && !list->getItem(0).empty())
				{
					m_selected_item = new ItemSpec;
					m_selected_item->inventoryloc = s.inventoryloc;
					m_selected_item->listname = "craftresult";
					m_selected_item->i = 0;
					m_selected_amount = 0;
					m_selected_dragging = false;
					break;
				}
			}
		}
	}

	// If craftresult is selected, keep the whole stack selected
	if(m_selected_item && m_selected_item->listname == "craftresult")
	{
		m_selected_amount = verifySelectedItem().count;
	}
}

ItemStack GUIFormSpecMenu::verifySelectedItem()
{
	// If the selected stack has become empty for some reason, deselect it.
	// If the selected stack has become inaccessible, deselect it.
	// If the selected stack has become smaller, adjust m_selected_amount.
	// Return the selected stack.

	if(m_selected_item)
	{
		if(m_selected_item->isValid())
		{
			Inventory *inv = m_invmgr->getInventory(m_selected_item->inventoryloc);
			if(inv)
			{
				InventoryList *list = inv->getList(m_selected_item->listname);
				if(list && (u32) m_selected_item->i < list->getSize())
				{
					ItemStack stack = list->getItem(m_selected_item->i);
					if(m_selected_amount > stack.count)
						m_selected_amount = stack.count;
					if(!stack.empty())
						return stack;
				}
			}
		}

		// selection was not valid
		delete m_selected_item;
		m_selected_item = NULL;
		m_selected_amount = 0;
		m_selected_dragging = false;
	}
	return ItemStack();
}

void GUIFormSpecMenu::acceptInput(FormspecQuitMode quitmode=quit_mode_no)
{
	if(m_text_dst)
	{
		StringMap fields;

		if (quitmode == quit_mode_accept) {
			fields["quit"] = "true";
		}

		if (quitmode == quit_mode_cancel) {
			fields["quit"] = "true";
			m_text_dst->gotText(fields);
			return;
		}

		if (current_keys_pending.key_down) {
			fields["key_down"] = "true";
			current_keys_pending.key_down = false;
		}

		if (current_keys_pending.key_up) {
			fields["key_up"] = "true";
			current_keys_pending.key_up = false;
		}

		if (current_keys_pending.key_enter) {
			fields["key_enter"] = "true";
			current_keys_pending.key_enter = false;
		}

		if (current_keys_pending.key_escape) {
			fields["key_escape"] = "true";
			current_keys_pending.key_escape = false;
		}

		for(unsigned int i=0; i<m_fields.size(); i++) {
			const FieldSpec &s = m_fields[i];
			if(s.send) {
				std::string name = s.fname;
				if (s.ftype == f_Button) {
					fields[name] = wide_to_utf8(s.flabel);
				} else if (s.ftype == f_Table) {
					GUITable *table = getTable(s.fname);
					if (table) {
						fields[name] = table->checkEvent();
					}
				}
				else if(s.ftype == f_DropDown) {
					// no dynamic cast possible due to some distributions shipped
					// without rtti support in irrlicht
					IGUIElement * element = getElementFromId(s.fid);
					gui::IGUIComboBox *e = NULL;
					if ((element) && (element->getType() == gui::EGUIET_COMBO_BOX)) {
						e = static_cast<gui::IGUIComboBox*>(element);
					}
					s32 selected = e->getSelected();
					if (selected >= 0) {
						fields[name] =
							wide_to_utf8(e->getItem(selected));
					}
				}
				else if (s.ftype == f_TabHeader) {
					// no dynamic cast possible due to some distributions shipped
					// without rtti support in irrlicht
					IGUIElement * element = getElementFromId(s.fid);
					gui::IGUITabControl *e = NULL;
					if ((element) && (element->getType() == gui::EGUIET_TAB_CONTROL)) {
						e = static_cast<gui::IGUITabControl*>(element);
					}

					if (e != 0) {
						std::stringstream ss;
						ss << (e->getActiveTab() +1);
						fields[name] = ss.str();
					}
				}
				else if (s.ftype == f_CheckBox) {
					// no dynamic cast possible due to some distributions shipped
					// without rtti support in irrlicht
					IGUIElement * element = getElementFromId(s.fid);
					gui::IGUICheckBox *e = NULL;
					if ((element) && (element->getType() == gui::EGUIET_CHECK_BOX)) {
						e = static_cast<gui::IGUICheckBox*>(element);
					}

					if (e != 0) {
						if (e->isChecked())
							fields[name] = "true";
						else
							fields[name] = "false";
					}
				}
				else if (s.ftype == f_ScrollBar) {
					// no dynamic cast possible due to some distributions shipped
					// without rtti support in irrlicht
					IGUIElement * element = getElementFromId(s.fid);
					gui::IGUIScrollBar *e = NULL;
					if ((element) && (element->getType() == gui::EGUIET_SCROLL_BAR)) {
						e = static_cast<gui::IGUIScrollBar*>(element);
					}

					if (e != 0) {
						std::stringstream os;
						os << e->getPos();
						if (s.fdefault == L"Changed")
							fields[name] = "CHG:" + os.str();
						else
							fields[name] = "VAL:" + os.str();
 					}
				}
				else
				{
					IGUIElement* e = getElementFromId(s.fid);
					if(e != NULL) {
						fields[name] = wide_to_utf8(e->getText());
					}
				}
			}
		}

		m_text_dst->gotText(fields);
	}
}

static bool isChild(gui::IGUIElement * tocheck, gui::IGUIElement * parent)
{
	while(tocheck != NULL) {
		if (tocheck == parent) {
			return true;
		}
		tocheck = tocheck->getParent();
	}
	return false;
}

bool GUIFormSpecMenu::preprocessEvent(const SEvent& event)
{
	// The IGUITabControl renders visually using the skin's selected
	// font, which we override for the duration of form drawing,
	// but computes tab hotspots based on how it would have rendered
	// using the font that is selected at the time of button release.
	// To make these two consistent, temporarily override the skin's
	// font while the IGUITabControl is processing the event.
	if (event.EventType == EET_MOUSE_INPUT_EVENT &&
			event.MouseInput.Event == EMIE_LMOUSE_LEFT_UP) {
		s32 x = event.MouseInput.X;
		s32 y = event.MouseInput.Y;
		gui::IGUIElement *hovered =
			Environment->getRootGUIElement()->getElementFromPoint(
				core::position2d<s32>(x, y));
		if (hovered && isMyChild(hovered) &&
				hovered->getType() == gui::EGUIET_TAB_CONTROL) {
			gui::IGUISkin* skin = Environment->getSkin();
			sanity_check(skin != NULL);
			gui::IGUIFont *old_font = skin->getFont();
			skin->setFont(m_font);
			bool retval = hovered->OnEvent(event);
			skin->setFont(old_font);
			return retval;
		}
	}

	// Fix Esc/Return key being eaten by checkboxen and tables
	if(event.EventType==EET_KEY_INPUT_EVENT) {
		KeyPress kp(event.KeyInput);
		if (kp == EscapeKey || kp == CancelKey
				|| kp == getKeySetting("keymap_inventory")
				|| event.KeyInput.Key==KEY_RETURN) {
			gui::IGUIElement *focused = Environment->getFocus();
			if (focused && isMyChild(focused) &&
					(focused->getType() == gui::EGUIET_LIST_BOX ||
					 focused->getType() == gui::EGUIET_CHECK_BOX)) {
				OnEvent(event);
				return true;
			}
		}
	}
	// Mouse wheel events: send to hovered element instead of focused
	if(event.EventType==EET_MOUSE_INPUT_EVENT
			&& event.MouseInput.Event == EMIE_MOUSE_WHEEL) {
		s32 x = event.MouseInput.X;
		s32 y = event.MouseInput.Y;
		gui::IGUIElement *hovered =
			Environment->getRootGUIElement()->getElementFromPoint(
				core::position2d<s32>(x, y));
		if (hovered && isMyChild(hovered)) {
			hovered->OnEvent(event);
			return true;
		}
	}

	if (event.EventType == EET_MOUSE_INPUT_EVENT) {
		s32 x = event.MouseInput.X;
		s32 y = event.MouseInput.Y;
		gui::IGUIElement *hovered =
			Environment->getRootGUIElement()->getElementFromPoint(
				core::position2d<s32>(x, y));
		if (event.MouseInput.Event == EMIE_LMOUSE_PRESSED_DOWN) {
			m_old_tooltip_id = -1;
			m_old_tooltip = "";
		}
		if (!isChild(hovered,this)) {
			if (DoubleClickDetection(event)) {
				return true;
			}
		}
	}

	#ifdef __ANDROID__
	// display software keyboard when clicking edit boxes
	if (event.EventType == EET_MOUSE_INPUT_EVENT
			&& event.MouseInput.Event == EMIE_LMOUSE_PRESSED_DOWN) {
		gui::IGUIElement *hovered =
			Environment->getRootGUIElement()->getElementFromPoint(
				core::position2d<s32>(event.MouseInput.X, event.MouseInput.Y));
		if ((hovered) && (hovered->getType() == irr::gui::EGUIET_EDIT_BOX)) {
			bool retval = hovered->OnEvent(event);
			if (retval) {
				Environment->setFocus(hovered);
			}
			m_JavaDialogFieldName = getNameByID(hovered->getID());
			std::string message   = gettext("Enter ");
			std::string label     = wide_to_utf8(getLabelByID(hovered->getID()));
			if (label == "") {
				label = "text";
			}
			message += gettext(label) + ":";

			/* single line text input */
			int type = 2;

			/* multi line text input */
			if (((gui::IGUIEditBox*) hovered)->isMultiLineEnabled()) {
				type = 1;
			}

			/* passwords are always single line */
			if (((gui::IGUIEditBox*) hovered)->isPasswordBox()) {
				type = 3;
			}

			porting::showInputDialog(gettext("ok"), "",
					wide_to_utf8(((gui::IGUIEditBox*) hovered)->getText()),
					type);
			return retval;
		}
	}

	if (event.EventType == EET_TOUCH_INPUT_EVENT)
	{
		SEvent translated;
		memset(&translated, 0, sizeof(SEvent));
		translated.EventType   = EET_MOUSE_INPUT_EVENT;
		gui::IGUIElement* root = Environment->getRootGUIElement();

		if (!root) {
			errorstream
			<< "GUIFormSpecMenu::preprocessEvent unable to get root element"
			<< std::endl;
			return false;
		}
		gui::IGUIElement* hovered = root->getElementFromPoint(
			core::position2d<s32>(
					event.TouchInput.X,
					event.TouchInput.Y));

		translated.MouseInput.X = event.TouchInput.X;
		translated.MouseInput.Y = event.TouchInput.Y;
		translated.MouseInput.Control = false;

		bool dont_send_event = false;

		if (event.TouchInput.touchedCount == 1) {
			switch (event.TouchInput.Event) {
				case ETIE_PRESSED_DOWN:
					m_pointer = v2s32(event.TouchInput.X,event.TouchInput.Y);
					translated.MouseInput.Event = EMIE_LMOUSE_PRESSED_DOWN;
					translated.MouseInput.ButtonStates = EMBSM_LEFT;
					m_down_pos = m_pointer;
					break;
				case ETIE_MOVED:
					m_pointer = v2s32(event.TouchInput.X,event.TouchInput.Y);
					translated.MouseInput.Event = EMIE_MOUSE_MOVED;
					translated.MouseInput.ButtonStates = EMBSM_LEFT;
					break;
				case ETIE_LEFT_UP:
					translated.MouseInput.Event = EMIE_LMOUSE_LEFT_UP;
					translated.MouseInput.ButtonStates = 0;
					hovered = root->getElementFromPoint(m_down_pos);
					/* we don't have a valid pointer element use last
					 * known pointer pos */
					translated.MouseInput.X = m_pointer.X;
					translated.MouseInput.Y = m_pointer.Y;

					/* reset down pos */
					m_down_pos = v2s32(0,0);
					break;
				default:
					dont_send_event = true;
					//this is not supposed to happen
					errorstream
					<< "GUIFormSpecMenu::preprocessEvent unexpected usecase Event="
					<< event.TouchInput.Event << std::endl;
			}
		} else if ( (event.TouchInput.touchedCount == 2) &&
				(event.TouchInput.Event == ETIE_PRESSED_DOWN) ) {
			hovered = root->getElementFromPoint(m_down_pos);

			translated.MouseInput.Event = EMIE_RMOUSE_PRESSED_DOWN;
			translated.MouseInput.ButtonStates = EMBSM_LEFT | EMBSM_RIGHT;
			translated.MouseInput.X = m_pointer.X;
			translated.MouseInput.Y = m_pointer.Y;

			if (hovered) {
				hovered->OnEvent(translated);
			}

			translated.MouseInput.Event = EMIE_RMOUSE_LEFT_UP;
			translated.MouseInput.ButtonStates = EMBSM_LEFT;


			if (hovered) {
				hovered->OnEvent(translated);
			}
			dont_send_event = true;
		}
		/* ignore unhandled 2 touch events ... accidental moving for example */
		else if (event.TouchInput.touchedCount == 2) {
			dont_send_event = true;
		}
		else if (event.TouchInput.touchedCount > 2) {
			errorstream
			<< "GUIFormSpecMenu::preprocessEvent to many multitouch events "
			<< event.TouchInput.touchedCount << " ignoring them" << std::endl;
		}

		if (dont_send_event) {
			return true;
		}

		/* check if translated event needs to be preprocessed again */
		if (preprocessEvent(translated)) {
			return true;
		}
		if (hovered) {
			grab();
			bool retval = hovered->OnEvent(translated);

			if (event.TouchInput.Event == ETIE_LEFT_UP) {
				/* reset pointer */
				m_pointer = v2s32(0,0);
			}
			drop();
			return retval;
		}
	}
	#endif

	return false;
}

/******************************************************************************/
bool GUIFormSpecMenu::DoubleClickDetection(const SEvent event)
{
	/* The following code is for capturing double-clicks of the mouse button
	 * and translating the double-click into an EET_KEY_INPUT_EVENT event
	 * -- which closes the form -- under some circumstances.
	 *
	 * There have been many github issues reporting this as a bug even though it
	 * was an intended feature.  For this reason, remapping the double-click as
	 * an ESC must be explicitly set when creating this class via the
	 * /p remap_dbl_click parameter of the constructor.
	 */

	if (!m_remap_dbl_click)
		return false;

	if (event.MouseInput.Event == EMIE_LMOUSE_PRESSED_DOWN) {
		m_doubleclickdetect[0].pos  = m_doubleclickdetect[1].pos;
		m_doubleclickdetect[0].time = m_doubleclickdetect[1].time;

		m_doubleclickdetect[1].pos  = m_pointer;
		m_doubleclickdetect[1].time = getTimeMs();
	}
	else if (event.MouseInput.Event == EMIE_LMOUSE_LEFT_UP) {
		u32 delta = porting::getDeltaMs(m_doubleclickdetect[0].time, getTimeMs());
		if (delta > 400) {
			return false;
		}

		double squaredistance =
				m_doubleclickdetect[0].pos
				.getDistanceFromSQ(m_doubleclickdetect[1].pos);

		if (squaredistance > (30*30)) {
			return false;
		}

		SEvent* translated = new SEvent();
		assert(translated != 0);
		//translate doubleclick to escape
		memset(translated, 0, sizeof(SEvent));
		translated->EventType = irr::EET_KEY_INPUT_EVENT;
		translated->KeyInput.Key         = KEY_ESCAPE;
		translated->KeyInput.Control     = false;
		translated->KeyInput.Shift       = false;
		translated->KeyInput.PressedDown = true;
		translated->KeyInput.Char        = 0;
		OnEvent(*translated);

		// no need to send the key up event as we're already deleted
		// and no one else did notice this event
		delete translated;
		return true;
	}

	return false;
}

bool GUIFormSpecMenu::OnEvent(const SEvent& event)
{
	if (event.EventType==EET_KEY_INPUT_EVENT) {
		KeyPress kp(event.KeyInput);
		if (event.KeyInput.PressedDown && ( (kp == EscapeKey) ||
				(kp == getKeySetting("keymap_inventory")) || (kp == CancelKey))) {
			if (m_allowclose) {
				doPause = false;
				acceptInput(quit_mode_cancel);
				quitMenu();
			} else {
				m_text_dst->gotText(L"MenuQuit");
			}
			return true;
		} else if (m_client != NULL && event.KeyInput.PressedDown &&
				(kp == getKeySetting("keymap_screenshot"))) {
			m_client->makeScreenshot(m_device);
		}
		if (event.KeyInput.PressedDown &&
			(event.KeyInput.Key==KEY_RETURN ||
			 event.KeyInput.Key==KEY_UP ||
			 event.KeyInput.Key==KEY_DOWN)
			) {
			switch (event.KeyInput.Key) {
				case KEY_RETURN:
					current_keys_pending.key_enter = true;
					break;
				case KEY_UP:
					current_keys_pending.key_up = true;
					break;
				case KEY_DOWN:
					current_keys_pending.key_down = true;
					break;
				break;
				default:
					//can't happen at all!
					FATAL_ERROR("Reached a source line that can't ever been reached");
					break;
			}
			if (current_keys_pending.key_enter && m_allowclose) {
				acceptInput(quit_mode_accept);
				quitMenu();
			} else {
				acceptInput();
			}
			return true;
		}

	}

	/* Mouse event other than movement, or crossing the border of inventory
	  field while holding right mouse button
	 */
	if (event.EventType == EET_MOUSE_INPUT_EVENT &&
			(event.MouseInput.Event != EMIE_MOUSE_MOVED ||
			 (event.MouseInput.Event == EMIE_MOUSE_MOVED &&
			  event.MouseInput.isRightPressed() &&
			  getItemAtPos(m_pointer).i != getItemAtPos(m_old_pointer).i))) {

		// Get selected item and hovered/clicked item (s)

		m_old_tooltip_id = -1;
		updateSelectedItem();
		ItemSpec s = getItemAtPos(m_pointer);

		Inventory *inv_selected = NULL;
		Inventory *inv_s = NULL;
		InventoryList *list_s = NULL;

		if (m_selected_item) {
			inv_selected = m_invmgr->getInventory(m_selected_item->inventoryloc);
			sanity_check(inv_selected);
			sanity_check(inv_selected->getList(m_selected_item->listname) != NULL);
		}

		u32 s_count = 0;

		if (s.isValid())
		do { // breakable
			inv_s = m_invmgr->getInventory(s.inventoryloc);

			if (!inv_s) {
				errorstream << "InventoryMenu: The selected inventory location "
						<< "\"" << s.inventoryloc.dump() << "\" doesn't exist"
						<< std::endl;
				s.i = -1;  // make it invalid again
				break;
			}

			list_s = inv_s->getList(s.listname);
			if (list_s == NULL) {
				verbosestream << "InventoryMenu: The selected inventory list \""
						<< s.listname << "\" does not exist" << std::endl;
				s.i = -1;  // make it invalid again
				break;
			}

			if ((u32)s.i >= list_s->getSize()) {
				infostream << "InventoryMenu: The selected inventory list \""
						<< s.listname << "\" is too small (i=" << s.i << ", size="
						<< list_s->getSize() << ")" << std::endl;
				s.i = -1;  // make it invalid again
				break;
			}

			s_count = list_s->getItem(s.i).count;
		} while(0);

		bool identical = (m_selected_item != NULL) && s.isValid() &&
			(inv_selected == inv_s) &&
			(m_selected_item->listname == s.listname) &&
			(m_selected_item->i == s.i);

		// buttons: 0 = left, 1 = right, 2 = middle
		// up/down: 0 = down (press), 1 = up (release), 2 = unknown event, -1 movement
		int button = 0;
		int updown = 2;
		if (event.MouseInput.Event == EMIE_LMOUSE_PRESSED_DOWN)
			{ button = 0; updown = 0; }
		else if (event.MouseInput.Event == EMIE_RMOUSE_PRESSED_DOWN)
			{ button = 1; updown = 0; }
		else if (event.MouseInput.Event == EMIE_MMOUSE_PRESSED_DOWN)
			{ button = 2; updown = 0; }
		else if (event.MouseInput.Event == EMIE_LMOUSE_LEFT_UP)
			{ button = 0; updown = 1; }
		else if (event.MouseInput.Event == EMIE_RMOUSE_LEFT_UP)
			{ button = 1; updown = 1; }
		else if (event.MouseInput.Event == EMIE_MMOUSE_LEFT_UP)
			{ button = 2; updown = 1; }
		else if (event.MouseInput.Event == EMIE_MOUSE_MOVED)
			{ updown = -1;}

		// Set this number to a positive value to generate a move action
		// from m_selected_item to s.
		u32 move_amount = 0;

		// Set this number to a positive value to generate a move action
		// from s to the next inventory ring.
		u32 shift_move_amount = 0;

		// Set this number to a positive value to generate a drop action
		// from m_selected_item.
		u32 drop_amount = 0;

		// Set this number to a positive value to generate a craft action at s.
		u32 craft_amount = 0;

		if (updown == 0) {
			// Some mouse button has been pressed

			//infostream<<"Mouse button "<<button<<" pressed at p=("
			//	<<p.X<<","<<p.Y<<")"<<std::endl;

			m_selected_dragging = false;

			if (s.isValid() && s.listname == "craftpreview") {
				// Craft preview has been clicked: craft
				craft_amount = (button == 2 ? 10 : 1);
			} else if (m_selected_item == NULL) {
				if (s_count != 0) {
					// Non-empty stack has been clicked: select or shift-move it
					m_selected_item = new ItemSpec(s);

					u32 count;
					if (button == 1)  // right
						count = (s_count + 1) / 2;
					else if (button == 2)  // middle
						count = MYMIN(s_count, 10);
					else  // left
						count = s_count;

					if (!event.MouseInput.Shift) {
						// no shift: select item
						m_selected_amount = count;
						m_selected_dragging = true;
						m_rmouse_auto_place = false;
					} else {
						// shift pressed: move item
						if (button != 1)
							shift_move_amount = count;
						else // count of 1 at left click like after drag & drop
							shift_move_amount = 1;
					}
				}
			} else { // m_selected_item != NULL
				assert(m_selected_amount >= 1);

				if (s.isValid()) {
					// Clicked a slot: move
					if (button == 1)  // right
						move_amount = 1;
					else if (button == 2)  // middle
						move_amount = MYMIN(m_selected_amount, 10);
					else  // left
						move_amount = m_selected_amount;

					if (identical) {
						if (move_amount >= m_selected_amount)
							m_selected_amount = 0;
						else
							m_selected_amount -= move_amount;
						move_amount = 0;
					}
				}
				else if (!getAbsoluteClippingRect().isPointInside(m_pointer)) {
					// Clicked outside of the window: drop
					if (button == 1)  // right
						drop_amount = 1;
					else if (button == 2)  // middle
						drop_amount = MYMIN(m_selected_amount, 10);
					else  // left
						drop_amount = m_selected_amount;
				}
			}
		}
		else if (updown == 1) {
			// Some mouse button has been released

			//infostream<<"Mouse button "<<button<<" released at p=("
			//	<<p.X<<","<<p.Y<<")"<<std::endl;

			if (m_selected_item != NULL && m_selected_dragging && s.isValid()) {
				if (!identical) {
					// Dragged to different slot: move all selected
					move_amount = m_selected_amount;
				}
			} else if (m_selected_item != NULL && m_selected_dragging &&
					!(getAbsoluteClippingRect().isPointInside(m_pointer))) {
				// Dragged outside of window: drop all selected
				drop_amount = m_selected_amount;
			}

			m_selected_dragging = false;
			// Keep count of how many times right mouse button has been
			// clicked. One click is drag without dropping. Click + release
			// + click changes to drop one item when moved mode
			if (button == 1 && m_selected_item != NULL)
				m_rmouse_auto_place = !m_rmouse_auto_place;
		} else if (updown == -1) {
			// Mouse has been moved and rmb is down and mouse pointer just
			// entered a new inventory field (checked in the entry-if, this
			// is the only action here that is generated by mouse movement)
			if (m_selected_item != NULL && s.isValid()) {
				// Move 1 item
				// TODO: middle mouse to move 10 items might be handy
				if (m_rmouse_auto_place) {
					// Only move an item if the destination slot is empty
					// or contains the same item type as what is going to be
					// moved
					InventoryList *list_from = inv_selected->getList(m_selected_item->listname);
					InventoryList *list_to = list_s;
					assert(list_from && list_to);
					ItemStack stack_from = list_from->getItem(m_selected_item->i);
					ItemStack stack_to = list_to->getItem(s.i);
					if (stack_to.empty() || stack_to.name == stack_from.name)
						move_amount = 1;
				}
			}
		}

		// Possibly send inventory action to server
		if (move_amount > 0) {
			// Send IACTION_MOVE

			assert(m_selected_item && m_selected_item->isValid());
			assert(s.isValid());

			assert(inv_selected && inv_s);
			InventoryList *list_from = inv_selected->getList(m_selected_item->listname);
			InventoryList *list_to = list_s;
			assert(list_from && list_to);
			ItemStack stack_from = list_from->getItem(m_selected_item->i);
			ItemStack stack_to = list_to->getItem(s.i);

			// Check how many items can be moved
			move_amount = stack_from.count = MYMIN(move_amount, stack_from.count);
			ItemStack leftover = stack_to.addItem(stack_from, m_gamedef->idef());
			// If source stack cannot be added to destination stack at all,
			// they are swapped
			if ((leftover.count == stack_from.count) &&
					(leftover.name == stack_from.name)) {
				m_selected_amount = stack_to.count;
				// In case the server doesn't directly swap them but instead
				// moves stack_to somewhere else, set this
				m_selected_content_guess = stack_to;
				m_selected_content_guess_inventory = s.inventoryloc;
			}
			// Source stack goes fully into destination stack
			else if (leftover.empty()) {
				m_selected_amount -= move_amount;
				m_selected_content_guess = ItemStack(); // Clear
			}
			// Source stack goes partly into destination stack
			else {
				move_amount -= leftover.count;
				m_selected_amount -= move_amount;
				m_selected_content_guess = ItemStack(); // Clear
			}

			infostream << "Handing IACTION_MOVE to manager" << std::endl;
			IMoveAction *a = new IMoveAction();
			a->count = move_amount;
			a->from_inv = m_selected_item->inventoryloc;
			a->from_list = m_selected_item->listname;
			a->from_i = m_selected_item->i;
			a->to_inv = s.inventoryloc;
			a->to_list = s.listname;
			a->to_i = s.i;
			m_invmgr->inventoryAction(a);
		} else if (shift_move_amount > 0) {
			u32 mis = m_inventory_rings.size();
			u32 i = 0;
			for (; i < mis; i++) {
				const ListRingSpec &sp = m_inventory_rings[i];
				if (sp.inventoryloc == s.inventoryloc
						&& sp.listname == s.listname)
					break;
			}
			do {
				if (i >= mis) // if not found
					break;
				u32 to_inv_ind = (i + 1) % mis;
				const ListRingSpec &to_inv_sp = m_inventory_rings[to_inv_ind];
				InventoryList *list_from = list_s;
				if (!s.isValid())
					break;
				Inventory *inv_to = m_invmgr->getInventory(to_inv_sp.inventoryloc);
				if (!inv_to)
					break;
				InventoryList *list_to = inv_to->getList(to_inv_sp.listname);
				if (!list_to)
					break;
				ItemStack stack_from = list_from->getItem(s.i);
				assert(shift_move_amount <= stack_from.count);
				if (m_client->getProtoVersion() >= 25) {
					infostream << "Handing IACTION_MOVE to manager" << std::endl;
					IMoveAction *a = new IMoveAction();
					a->count = shift_move_amount;
					a->from_inv = s.inventoryloc;
					a->from_list = s.listname;
					a->from_i = s.i;
					a->to_inv = to_inv_sp.inventoryloc;
					a->to_list = to_inv_sp.listname;
					a->move_somewhere = true;
					m_invmgr->inventoryAction(a);
				} else {
					// find a place (or more than one) to add the new item
					u32 ilt_size = list_to->getSize();
					ItemStack leftover;
					for (u32 slot_to = 0; slot_to < ilt_size
							&& shift_move_amount > 0; slot_to++) {
						list_to->itemFits(slot_to, stack_from, &leftover);
						if (leftover.count < stack_from.count) {
							infostream << "Handing IACTION_MOVE to manager" << std::endl;
							IMoveAction *a = new IMoveAction();
							a->count = MYMIN(shift_move_amount,
								(u32) (stack_from.count - leftover.count));
							shift_move_amount -= a->count;
							a->from_inv = s.inventoryloc;
							a->from_list = s.listname;
							a->from_i = s.i;
							a->to_inv = to_inv_sp.inventoryloc;
							a->to_list = to_inv_sp.listname;
							a->to_i = slot_to;
							m_invmgr->inventoryAction(a);
							stack_from = leftover;
						}
					}
				}
			} while (0);
		} else if (drop_amount > 0) {
			m_selected_content_guess = ItemStack(); // Clear

			// Send IACTION_DROP

			assert(m_selected_item && m_selected_item->isValid());
			assert(inv_selected);
			InventoryList *list_from = inv_selected->getList(m_selected_item->listname);
			assert(list_from);
			ItemStack stack_from = list_from->getItem(m_selected_item->i);

			// Check how many items can be dropped
			drop_amount = stack_from.count = MYMIN(drop_amount, stack_from.count);
			assert(drop_amount > 0 && drop_amount <= m_selected_amount);
			m_selected_amount -= drop_amount;

			infostream << "Handing IACTION_DROP to manager" << std::endl;
			IDropAction *a = new IDropAction();
			a->count = drop_amount;
			a->from_inv = m_selected_item->inventoryloc;
			a->from_list = m_selected_item->listname;
			a->from_i = m_selected_item->i;
			m_invmgr->inventoryAction(a);
		} else if (craft_amount > 0) {
			m_selected_content_guess = ItemStack(); // Clear

			// Send IACTION_CRAFT

			assert(s.isValid());
			assert(inv_s);

			infostream << "Handing IACTION_CRAFT to manager" << std::endl;
			ICraftAction *a = new ICraftAction();
			a->count = craft_amount;
			a->craft_inv = s.inventoryloc;
			m_invmgr->inventoryAction(a);
		}

		// If m_selected_amount has been decreased to zero, deselect
		if (m_selected_amount == 0) {
			delete m_selected_item;
			m_selected_item = NULL;
			m_selected_amount = 0;
			m_selected_dragging = false;
			m_selected_content_guess = ItemStack();
		}
		m_old_pointer = m_pointer;
	}
	if (event.EventType == EET_GUI_EVENT) {

		if (event.GUIEvent.EventType == gui::EGET_TAB_CHANGED
				&& isVisible()) {
			// find the element that was clicked
			for (unsigned int i=0; i<m_fields.size(); i++) {
				FieldSpec &s = m_fields[i];
				if ((s.ftype == f_TabHeader) &&
						(s.fid == event.GUIEvent.Caller->getID())) {
					s.send = true;
					acceptInput();
					s.send = false;
					return true;
				}
			}
		}
		if (event.GUIEvent.EventType == gui::EGET_ELEMENT_FOCUS_LOST
				&& isVisible()) {
			if (!canTakeFocus(event.GUIEvent.Element)) {
				infostream<<"GUIFormSpecMenu: Not allowing focus change."
						<<std::endl;
				// Returning true disables focus change
				return true;
			}
		}
		if ((event.GUIEvent.EventType == gui::EGET_BUTTON_CLICKED) ||
				(event.GUIEvent.EventType == gui::EGET_CHECKBOX_CHANGED) ||
				(event.GUIEvent.EventType == gui::EGET_COMBO_BOX_CHANGED) ||
				(event.GUIEvent.EventType == gui::EGET_SCROLL_BAR_CHANGED)) {
			unsigned int btn_id = event.GUIEvent.Caller->getID();

			if (btn_id == 257) {
				if (m_allowclose) {
					acceptInput(quit_mode_accept);
					quitMenu();
				} else {
					acceptInput();
					m_text_dst->gotText(L"ExitButton");
				}
				// quitMenu deallocates menu
				return true;
			}

			// find the element that was clicked
			for (u32 i = 0; i < m_fields.size(); i++) {
				FieldSpec &s = m_fields[i];
				// if its a button, set the send field so
				// lua knows which button was pressed
				if (((s.ftype == f_Button) || (s.ftype == f_CheckBox)) &&
						(s.fid == event.GUIEvent.Caller->getID())) {
					s.send = true;
					if (s.is_exit) {
						if (m_allowclose) {
							acceptInput(quit_mode_accept);
							quitMenu();
						} else {
							m_text_dst->gotText(L"ExitButton");
						}
						return true;
					} else {
						acceptInput(quit_mode_no);
						s.send = false;
						return true;
					}
				} else if ((s.ftype == f_DropDown) &&
						(s.fid == event.GUIEvent.Caller->getID())) {
					// only send the changed dropdown
					for (u32 i = 0; i < m_fields.size(); i++) {
						FieldSpec &s2 = m_fields[i];
						if (s2.ftype == f_DropDown) {
							s2.send = false;
						}
					}
					s.send = true;
					acceptInput(quit_mode_no);

					// revert configuration to make sure dropdowns are sent on
					// regular button click
					for (u32 i = 0; i < m_fields.size(); i++) {
						FieldSpec &s2 = m_fields[i];
						if (s2.ftype == f_DropDown) {
							s2.send = true;
						}
					}
					return true;
				} else if ((s.ftype == f_ScrollBar) &&
						(s.fid == event.GUIEvent.Caller->getID())) {
					s.fdefault = L"Changed";
					acceptInput(quit_mode_no);
					s.fdefault = L"";
				}
			}
		}

		if (event.GUIEvent.EventType == gui::EGET_EDITBOX_ENTER) {
			if (event.GUIEvent.Caller->getID() > 257) {

				if (m_allowclose) {
					acceptInput(quit_mode_accept);
					quitMenu();
				} else {
					current_keys_pending.key_enter = true;
					acceptInput();
				}
				// quitMenu deallocates menu
				return true;
			}
		}

		if (event.GUIEvent.EventType == gui::EGET_TABLE_CHANGED) {
			int current_id = event.GUIEvent.Caller->getID();
			if (current_id > 257) {
				// find the element that was clicked
				for (u32 i = 0; i < m_fields.size(); i++) {
					FieldSpec &s = m_fields[i];
					// if it's a table, set the send field
					// so lua knows which table was changed
					if ((s.ftype == f_Table) && (s.fid == current_id)) {
						s.send = true;
						acceptInput();
						s.send=false;
					}
				}
				return true;
			}
		}
	}

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

/**
 * get name of element by element id
 * @param id of element
 * @return name string or empty string
 */
std::string GUIFormSpecMenu::getNameByID(s32 id)
{
	for(std::vector<FieldSpec>::iterator iter =  m_fields.begin();
				iter != m_fields.end(); iter++) {
		if (iter->fid == id) {
			return iter->fname;
		}
	}
	return "";
}

/**
 * get label of element by id
 * @param id of element
 * @return label string or empty string
 */
std::wstring GUIFormSpecMenu::getLabelByID(s32 id)
{
	for(std::vector<FieldSpec>::iterator iter =  m_fields.begin();
				iter != m_fields.end(); iter++) {
		if (iter->fid == id) {
			return iter->flabel;
		}
	}
	return L"";
}