worldspawn/src/preferences.cpp

/*
   Copyright (C) 1999-2006 Id Software, Inc. and contributors.
   For a list of contributors, see the accompanying CONTRIBUTORS file.

   This file is part of GtkRadiant.

   GtkRadiant is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; either version 2 of the License, or
   (at your option) any later version.

   GtkRadiant is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.

   You should have received a copy of the GNU General Public License
   along with GtkRadiant; if not, write to the Free Software
   Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 */

//
// User preferences
//
// Leonardo Zide (leo@lokigames.com)
//

#include "preferences.h"
#include "globaldefs.h"

#include <gtk/gtk.h>
#include "gtkutil/image.h"
#include "environment.h"

#include "debugging/debugging.h"

#include "generic/callback.h"
#include "math/vector.h"
#include "string/string.h"
#include "stream/stringstream.h"
#include "os/file.h"
#include "os/path.h"
#include "os/dir.h"
#include "gtkutil/filechooser.h"
#include "gtkutil/messagebox.h"
#include "cmdlib.h"

#include "error.h"
#include "console.h"
#include "xywindow.h"
#include "mainframe.h"
#include "qe3.h"
#include "gtkdlgs.h"

void Interface_constructPreferences(PreferencesPage &page)
{
#if GDEF_OS_WINDOWS
	page.appendCheckBox( "", "Default Text Editor", g_TextEditor_useWin32Editor );
#else
	{
		ui::CheckButton use_custom = page.appendCheckBox("Text Editor", "Custom", g_TextEditor_useCustomEditor);
		ui::Widget custom_editor = page.appendPathEntry("Text Editor Command", g_TextEditor_editorCommand, true);
		Widget_connectToggleDependency(custom_editor, use_custom);
	}
#endif
}

void Mouse_constructPreferences(PreferencesPage &page)
{
	{
		const char *buttons[] = {"2 button", "3 button",};
		page.appendRadio("Mouse Type", g_glwindow_globals.m_nMouseType, STRING_ARRAY_RANGE(buttons));
	}
	page.appendCheckBox("Right Button", "Activates Context Menu", g_xywindow_globals.m_bRightClick);
}

void Mouse_constructPage(PreferenceGroup &group)
{
	PreferencesPage page(group.createPage("Mouse", "Mouse Preferences"));
	Mouse_constructPreferences(page);
}

void Mouse_registerPreferencesPage()
{
	PreferencesDialog_addInterfacePage(makeCallbackF(Mouse_constructPage));
}


/*!
   =========================================================
   Games selection dialog
   =========================================================
 */

#include <map>
#include <uilib/uilib.h>

inline const char *xmlAttr_getName(xmlAttrPtr attr)
{
	return reinterpret_cast<const char *>( attr->name );
}

inline const char *xmlAttr_getValue(xmlAttrPtr attr)
{
	return reinterpret_cast<const char *>( attr->children->content );
}

CGameDescription::CGameDescription(xmlDocPtr pDoc, const CopiedString &gameFile)
{
	// read the user-friendly game name
	xmlNodePtr pNode = pDoc->children;

	while (strcmp((const char *) pNode->name, "game") && pNode != 0) {
		pNode = pNode->next;
	}
	if (!pNode) {
		Error("Didn't find 'game' node in the game description file '%s'\n", pDoc->URL);
	}

	for (xmlAttrPtr attr = pNode->properties; attr != 0; attr = attr->next) {
		m_gameDescription.insert(GameDescription::value_type(xmlAttr_getName(attr), xmlAttr_getValue(attr)));
	}

	{
		StringOutputStream path(256);
		path << AppPath_get() << gameFile.c_str() << "/";
		mGameToolsPath = path.c_str();
	}

	ASSERT_MESSAGE(file_exists(mGameToolsPath.c_str()),
	               "game directory not found: " << makeQuoted(mGameToolsPath.c_str()));

	mGameFile = gameFile;

	{
		GameDescription::iterator i = m_gameDescription.find("type");
		if (i == m_gameDescription.end()) {
			globalErrorStream() << "Warning, 'type' attribute not found in '"
			                    << reinterpret_cast<const char *>( pDoc->URL ) << "'\n";
			// default
			mGameType = "q3";
		} else {
			mGameType = (*i).second.c_str();
		}
	}
}

void CGameDescription::Dump()
{
	globalOutputStream() << "game description file: " << makeQuoted(mGameFile.c_str()) << "\n";
	for (GameDescription::iterator i = m_gameDescription.begin(); i != m_gameDescription.end(); ++i) {
		globalOutputStream() << (*i).first.c_str() << " = " << makeQuoted((*i).second.c_str()) << "\n";
	}
}

CGameDescription *g_pGameDescription; ///< shortcut to g_GamesDialog.m_pCurrentDescription


#include "warnings.h"
#include "stream/textfilestream.h"
#include "container/array.h"
#include "xml/ixml.h"
#include "xml/xmlparser.h"
#include "xml/xmlwriter.h"

#include "preferencedictionary.h"
#include "stringio.h"

const char *const PREFERENCES_VERSION = "1.0";

bool Preferences_Load(PreferenceDictionary &preferences, const char *filename, const char *cmdline_prefix)
{
	bool ret = false;
	TextFileInputStream file(filename);
	if (!file.failed()) {
		XMLStreamParser parser(file);
		XMLPreferenceDictionaryImporter importer(preferences, PREFERENCES_VERSION);
		parser.exportXML(importer);
		ret = true;
	}

	int l = strlen(cmdline_prefix);
	for (int i = 1; i < g_argc - 1; ++i) {
		if (g_argv[i][0] == '-') {
			if (!strncmp(g_argv[i] + 1, cmdline_prefix, l)) {
				if (g_argv[i][l + 1] == '-') {
					preferences.importPref(g_argv[i] + l + 2, g_argv[i + 1]);
				}
			}
			++i;
		}
	}

	return ret;
}

bool Preferences_Save(PreferenceDictionary &preferences, const char *filename)
{
	TextFileOutputStream file(filename);
	if (!file.failed()) {
		XMLStreamWriter writer(file);
		XMLPreferenceDictionaryExporter exporter(preferences, PREFERENCES_VERSION);
		exporter.exportXML(writer);
		return true;
	}
	return false;
}

bool Preferences_Save_Safe(PreferenceDictionary &preferences, const char *filename)
{
	Array<char> tmpName(filename, filename + strlen(filename) + 1 + 3);
	*(tmpName.end() - 4) = 'T';
	*(tmpName.end() - 3) = 'M';
	*(tmpName.end() - 2) = 'P';
	*(tmpName.end() - 1) = '\0';

	return Preferences_Save(preferences, tmpName.data())
	       && (!file_exists(filename) || file_remove(filename))
	       && file_move(tmpName.data(), filename);
}

void RegisterGlobalPreferences(PreferenceSystem &preferences)
{
	preferences.registerPreference("gamefile", make_property_string(g_GamesDialog.m_sGameFile));
	preferences.registerPreference("gamePrompt", make_property_string(g_GamesDialog.m_bGamePrompt));
}


PreferenceDictionary g_global_preferences;

void GlobalPreferences_Init()
{
	RegisterGlobalPreferences(g_global_preferences);
}

void CGameDialog::LoadPrefs()
{
	// load global .pref file
	StringOutputStream strGlobalPref(256);
	strGlobalPref << g_Preferences.m_global_rc_path->str << "global.pref";

	globalOutputStream() << "loading global preferences from " << makeQuoted(strGlobalPref.c_str()) << "\n";

	if (!Preferences_Load(g_global_preferences, strGlobalPref.c_str(), "global")) {
		globalOutputStream() << "failed to load global preferences from " << strGlobalPref.c_str() << "\n";
	}
}

void CGameDialog::SavePrefs()
{
	StringOutputStream strGlobalPref(256);
	strGlobalPref << g_Preferences.m_global_rc_path->str << "global.pref";

	globalOutputStream() << "saving global preferences to " << strGlobalPref.c_str() << "\n";

	if (!Preferences_Save_Safe(g_global_preferences, strGlobalPref.c_str())) {
		globalOutputStream() << "failed to save global preferences to " << strGlobalPref.c_str() << "\n";
	}
}

void CGameDialog::DoGameDialog()
{
	// show the UI
	DoModal();

	// we save the prefs file
	SavePrefs();
}

void CGameDialog::GameFileImport(int value)
{
	m_nComboSelect = value;
	// use value to set m_sGameFile
	std::list<CGameDescription *>::iterator iGame = mGames.begin();
	int i;
	for (i = 0; i < value; i++) {
		++iGame;
	}
	m_sGameFile = (*iGame)->mGameFile;
}

void CGameDialog::GameFileExport(const Callback<void(int)> &importCallback) const
{
	// use m_sGameFile to set value
	std::list<CGameDescription *>::const_iterator iGame;
	int i = 0;
	for (iGame = mGames.begin(); iGame != mGames.end(); ++iGame) {
		if ((*iGame)->mGameFile == m_sGameFile) {
			m_nComboSelect = i;
			break;
		}
		i++;
	}
	importCallback(m_nComboSelect);
}

struct CGameDialog_GameFile {
	static void Export(const CGameDialog &self, const Callback<void(int)> &returnz)
	{
		self.GameFileExport(returnz);
	}

	static void Import(CGameDialog &self, int value)
	{
		self.GameFileImport(value);
	}
};

void CGameDialog::CreateGlobalFrame(PreferencesPage &page)
{
	std::vector<const char *> games;
	games.reserve(mGames.size());
	for (std::list<CGameDescription *>::iterator i = mGames.begin(); i != mGames.end(); ++i) {
		games.push_back((*i)->getRequiredKeyValue("name"));
	}
	page.appendCombo(
		"Select the game",
		StringArrayRange(&(*games.begin()), &(*games.end())),
		make_property<CGameDialog_GameFile>(*this)
		);
	page.appendCheckBox("Startup", "Show Global Preferences", m_bGamePrompt);
}

ui::Window CGameDialog::BuildDialog()
{

	auto frame = create_dialog_frame("Game settings", ui::Shadow::ETCHED_IN);
	auto image = new_local_image("splash.xpm");
	image.show();
	auto vbox = ui::VBox(FALSE, 2);
	auto vbox2 = create_dialog_vbox(0, 4);
	vbox.show();
	vbox.pack_start(image, TRUE, TRUE, 0);
	frame.add(vbox2);
	vbox.pack_start(frame, FALSE, FALSE, 0);

	PreferencesPage preferencesPage(*this, vbox2);
	CreateGlobalFrame(preferencesPage);

	return create_simple_modal_dialog_window("Global Preferences", m_modal, vbox);
}

void CGameDialog::ScanForGames()
{
	StringOutputStream strGamesPath(256);
	strGamesPath << AppPath_get() << "games/";
	const char *path = strGamesPath.c_str();

	globalOutputStream() << "Scanning for game description files: " << path << '\n';

	/*!
	   \todo FIXME LINUX:
	   do we put game description files below AppPath, or in ~/.radiant
	   i.e. read only or read/write?
	   my guess .. readonly cause it's an install
	   we will probably want to add ~/.radiant/<version>/games/ scanning on top of that for developers
	   (if that's really needed)
	 */

	Directory_forEach(path, [&](const char *name) {
		if (!extension_equal(path_get_extension(name), "game")) {
			return;
		}
		StringOutputStream strPath(256);
		strPath << path << name;
		globalOutputStream() << strPath.c_str() << '\n';

		xmlDocPtr pDoc = xmlParseFile(strPath.c_str());
		if (pDoc) {
			mGames.push_front(new CGameDescription(pDoc, name));
			xmlFreeDoc(pDoc);
		} else {
			globalErrorStream() << "XML parser failed on '" << strPath.c_str() << "'\n";
		}
	});
}

CGameDescription *CGameDialog::GameDescriptionForComboItem()
{
	std::list<CGameDescription *>::iterator iGame;
	int i = 0;
	for (iGame = mGames.begin(); iGame != mGames.end(); ++iGame, i++) {
		if (i == m_nComboSelect) {
			return (*iGame);
		}
	}
	return 0; // not found
}

void CGameDialog::InitGlobalPrefPath()
{
	g_Preferences.m_global_rc_path = g_string_new(SettingsPath_get());
}

void CGameDialog::Reset()
{
	if (!g_Preferences.m_global_rc_path) {
		InitGlobalPrefPath();
	}
	StringOutputStream strGlobalPref(256);
	strGlobalPref << g_Preferences.m_global_rc_path->str << "global.pref";
	file_remove(strGlobalPref.c_str());
}

void CGameDialog::Init()
{
	InitGlobalPrefPath();
	LoadPrefs();
	ScanForGames();
	if (mGames.empty()) {
		Error("Didn't find any valid game file descriptions, aborting\n");
	} else {
		std::list<CGameDescription *>::iterator iGame, iPrevGame;
		for (iGame = mGames.begin(), iPrevGame = mGames.end(); iGame != mGames.end(); iPrevGame = iGame, ++iGame) {
			if (iPrevGame != mGames.end()) {
				if (strcmp((*iGame)->getRequiredKeyValue("name"), (*iPrevGame)->getRequiredKeyValue("name")) < 0) {
					CGameDescription *h = *iGame;
					*iGame = *iPrevGame;
					*iPrevGame = h;
				}
			}
		}
	}

	CGameDescription *currentGameDescription = 0;

	if (!m_bGamePrompt) {
		// search by .game name
		std::list<CGameDescription *>::iterator iGame;
		for (iGame = mGames.begin(); iGame != mGames.end(); ++iGame) {
			if ((*iGame)->mGameFile == m_sGameFile) {
				currentGameDescription = (*iGame);
				break;
			}
		}
	}
	if (m_bGamePrompt || !currentGameDescription) {
		Create();
		DoGameDialog();
		// use m_nComboSelect to identify the game to run as and set the globals
		currentGameDescription = GameDescriptionForComboItem();
		ASSERT_NOTNULL(currentGameDescription);
	}
	g_pGameDescription = currentGameDescription;

	g_pGameDescription->Dump();
}

CGameDialog::~CGameDialog()
{
	// free all the game descriptions
	std::list<CGameDescription *>::iterator iGame;
	for (iGame = mGames.begin(); iGame != mGames.end(); ++iGame) {
		delete (*iGame);
		*iGame = 0;
	}
	if (GetWidget()) {
		Destroy();
	}
}

inline const char *GameDescription_getIdentifier(const CGameDescription &gameDescription)
{
	const char *identifier = gameDescription.getKeyValue("index");
	if (string_empty(identifier)) {
		identifier = "1";
	}
	return identifier;
}


CGameDialog g_GamesDialog;


// =============================================================================
// Widget callbacks for PrefsDlg

static void OnButtonClean(ui::Widget widget, gpointer data)
{
	// make sure this is what the user wants
	if (ui::alert(g_Preferences.GetWidget(), "This will close Radiant and clean the corresponding registry entries.\n"
	              "Next time you start Radiant it will be good as new. Do you wish to continue?",
	              "Reset Registry", ui::alert_type::YESNO, ui::alert_icon::Asterisk) == ui::alert_response::YES) {
		PrefsDlg *dlg = (PrefsDlg *) data;
		dlg->EndModal(eIDCANCEL);

		g_preferences_globals.disable_ini = true;
		Preferences_Reset();
		gtk_main_quit();
	}
}

// =============================================================================
// PrefsDlg class

/*
   ========

   very first prefs init deals with selecting the game and the game tools path
   then we can load .ini stuff

   using prefs / ini settings:
   those are per-game

   look in ~/.radiant/<version>/gamename
   ========
 */

const char *PREFS_LOCAL_FILENAME = "local.pref";

void PrefsDlg::Init()
{
	// m_global_rc_path has been set above
	// m_rc_path is for game specific preferences
	// takes the form: global-pref-path/gamename/prefs-file

	// this is common to win32 and Linux init now
	m_rc_path = g_string_new(m_global_rc_path->str);

	// game sub-dir
	g_string_append(m_rc_path, g_pGameDescription->mGameFile.c_str());
	g_string_append(m_rc_path, "/");
	Q_mkdir(m_rc_path->str);

	// then the ini file
	m_inipath = g_string_new(m_rc_path->str);
	g_string_append(m_inipath, PREFS_LOCAL_FILENAME);
}

void notebook_set_page(ui::Widget notebook, ui::Widget page)
{
	int pagenum = gtk_notebook_page_num(GTK_NOTEBOOK(notebook), page);
	if (gtk_notebook_get_current_page(GTK_NOTEBOOK(notebook)) != pagenum) {
		gtk_notebook_set_current_page(GTK_NOTEBOOK(notebook), pagenum);
	}
}

void PrefsDlg::showPrefPage(ui::Widget prefpage)
{
	notebook_set_page(m_notebook, prefpage);
	return;
}

static void treeSelection(ui::TreeSelection selection, gpointer data)
{
	PrefsDlg *dlg = (PrefsDlg *) data;

	GtkTreeModel *model;
	GtkTreeIter selected;
	if (gtk_tree_selection_get_selected(selection, &model, &selected)) {
		ui::Widget prefpage{ui::null};
		gtk_tree_model_get(model, &selected, 1, (gpointer *) &prefpage, -1);
		dlg->showPrefPage(prefpage);
	}
}

typedef std::list<PreferenceGroupCallback> PreferenceGroupCallbacks;

inline void PreferenceGroupCallbacks_constructGroup(const PreferenceGroupCallbacks &callbacks, PreferenceGroup &group)
{
	for (PreferenceGroupCallbacks::const_iterator i = callbacks.begin(); i != callbacks.end(); ++i) {
		(*i)(group);
	}
}


inline void
PreferenceGroupCallbacks_pushBack(PreferenceGroupCallbacks &callbacks, const PreferenceGroupCallback &callback)
{
	callbacks.push_back(callback);
}

typedef std::list<PreferencesPageCallback> PreferencesPageCallbacks;

inline void PreferencesPageCallbacks_constructPage(const PreferencesPageCallbacks &callbacks, PreferencesPage &page)
{
	for (PreferencesPageCallbacks::const_iterator i = callbacks.begin(); i != callbacks.end(); ++i) {
		(*i)(page);
	}
}

inline void
PreferencesPageCallbacks_pushBack(PreferencesPageCallbacks &callbacks, const PreferencesPageCallback &callback)
{
	callbacks.push_back(callback);
}

PreferencesPageCallbacks g_interfacePreferences;

void PreferencesDialog_addInterfacePreferences(const PreferencesPageCallback &callback)
{
	PreferencesPageCallbacks_pushBack(g_interfacePreferences, callback);
}

PreferenceGroupCallbacks g_interfaceCallbacks;

void PreferencesDialog_addInterfacePage(const PreferenceGroupCallback &callback)
{
	PreferenceGroupCallbacks_pushBack(g_interfaceCallbacks, callback);
}

PreferencesPageCallbacks g_displayPreferences;

void PreferencesDialog_addDisplayPreferences(const PreferencesPageCallback &callback)
{
	PreferencesPageCallbacks_pushBack(g_displayPreferences, callback);
}

PreferenceGroupCallbacks g_displayCallbacks;

void PreferencesDialog_addDisplayPage(const PreferenceGroupCallback &callback)
{
	PreferenceGroupCallbacks_pushBack(g_displayCallbacks, callback);
}

PreferencesPageCallbacks g_settingsPreferences;

void PreferencesDialog_addSettingsPreferences(const PreferencesPageCallback &callback)
{
	PreferencesPageCallbacks_pushBack(g_settingsPreferences, callback);
}

PreferenceGroupCallbacks g_settingsCallbacks;

void PreferencesDialog_addSettingsPage(const PreferenceGroupCallback &callback)
{
	PreferenceGroupCallbacks_pushBack(g_settingsCallbacks, callback);
}

void Widget_updateDependency(ui::Widget self, ui::Widget toggleButton)
{
	gtk_widget_set_sensitive(self, gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(toggleButton)) &&
	                         gtk_widget_is_sensitive(toggleButton));
}

void ToggleButton_toggled_Widget_updateDependency(ui::Widget toggleButton, ui::Widget self)
{
	Widget_updateDependency(self, toggleButton);
}

void ToggleButton_state_changed_Widget_updateDependency(ui::Widget toggleButton, GtkStateType state, ui::Widget self)
{
	if (state == GTK_STATE_INSENSITIVE) {
		Widget_updateDependency(self, toggleButton);
	}
}

void Widget_connectToggleDependency(ui::Widget self, ui::Widget toggleButton)
{
	toggleButton.connect("state_changed", G_CALLBACK(ToggleButton_state_changed_Widget_updateDependency), self);
	toggleButton.connect("toggled", G_CALLBACK(ToggleButton_toggled_Widget_updateDependency), self);
	Widget_updateDependency(self, toggleButton);
}


inline ui::VBox getVBox(ui::Bin page)
{
	return ui::VBox::from(gtk_bin_get_child(page));
}

GtkTreeIter PreferenceTree_appendPage(ui::TreeStore store, GtkTreeIter *parent, const char *name, ui::Widget page)
{
	GtkTreeIter group;
	gtk_tree_store_append(store, &group, parent);
	gtk_tree_store_set(store, &group, 0, name, 1, page, -1);
	return group;
}

ui::Bin PreferencePages_addPage(ui::Widget notebook, const char *name)
{
	ui::Widget preflabel = ui::Label(name);
	preflabel.show();

	auto pageframe = ui::Frame(name);
	gtk_container_set_border_width(GTK_CONTAINER(pageframe), 4);
	pageframe.show();

	ui::Widget vbox = ui::VBox(FALSE, 4);
	vbox.show();
	gtk_container_set_border_width(GTK_CONTAINER(vbox), 4);
	pageframe.add(vbox);

	// Add the page to the notebook
	gtk_notebook_append_page(GTK_NOTEBOOK(notebook), pageframe, preflabel);

	return pageframe;
}

class PreferenceTreeGroup : public PreferenceGroup {
Dialog &m_dialog;
ui::Widget m_notebook;
ui::TreeStore m_store;
GtkTreeIter m_group;
public:
PreferenceTreeGroup(Dialog &dialog, ui::Widget notebook, ui::TreeStore store, GtkTreeIter group) :
	m_dialog(dialog),
	m_notebook(notebook),
	m_store(store),
	m_group(group)
{
}

PreferencesPage createPage(const char *treeName, const char *frameName)
{
	auto page = PreferencePages_addPage(m_notebook, frameName);
	PreferenceTree_appendPage(m_store, &m_group, treeName, page);
	return PreferencesPage(m_dialog, getVBox(page));
}
};

ui::Window PrefsDlg::BuildDialog()
{
	PreferencesDialog_addInterfacePreferences(makeCallbackF(Interface_constructPreferences));
	Mouse_registerPreferencesPage();

	ui::Window dialog = ui::Window(create_floating_window("WorldSpawn Preferences", m_parent));

	{
		auto mainvbox = ui::VBox(FALSE, 5);
		dialog.add(mainvbox);
		gtk_container_set_border_width(GTK_CONTAINER(mainvbox), 5);
		mainvbox.show();

		{
			auto hbox = ui::HBox(FALSE, 5);
			hbox.show();
			mainvbox.pack_end(hbox, FALSE, TRUE, 0);

			{
				auto button = create_dialog_button("OK", G_CALLBACK(dialog_button_ok), &m_modal);
				hbox.pack_end(button, FALSE, FALSE, 0);
			}
			{
				auto button = create_dialog_button("Cancel", G_CALLBACK(dialog_button_cancel), &m_modal);
				hbox.pack_end(button, FALSE, FALSE, 0);
			}
			{
				auto button = create_dialog_button("Clean", G_CALLBACK(OnButtonClean), this);
				hbox.pack_end(button, FALSE, FALSE, 0);
			}
		}

		{
			auto hbox = ui::HBox(FALSE, 5);
			mainvbox.pack_start(hbox, TRUE, TRUE, 0);
			hbox.show();

			{
				auto sc_win = ui::ScrolledWindow(ui::New);
				gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(sc_win), GTK_POLICY_NEVER, GTK_POLICY_AUTOMATIC);
				hbox.pack_start(sc_win, FALSE, FALSE, 0);
				sc_win.show();
				gtk_scrolled_window_set_shadow_type(GTK_SCROLLED_WINDOW(sc_win), GTK_SHADOW_IN);

				// prefs pages notebook
				m_notebook = ui::Widget::from(gtk_notebook_new());
				// hide the notebook tabs since its not supposed to look like a notebook
				gtk_notebook_set_show_tabs(GTK_NOTEBOOK(m_notebook), FALSE);
				hbox.pack_start(m_notebook, TRUE, TRUE, 0);
				m_notebook.show();


				{
					auto store = ui::TreeStore::from(gtk_tree_store_new(2, G_TYPE_STRING, G_TYPE_POINTER));

					auto view = ui::TreeView(ui::TreeModel::from(store._handle));
					gtk_tree_view_set_headers_visible(view, FALSE);

					{
						auto renderer = ui::CellRendererText(ui::New);
						auto column = ui::TreeViewColumn("Preferences", renderer, {{"text", 0}});
						gtk_tree_view_append_column(view, column);
					}

					{
						auto selection = ui::TreeSelection::from(gtk_tree_view_get_selection(view));
						selection.connect("changed", G_CALLBACK(treeSelection), this);
					}

					view.show();

					sc_win.add(view);

					{
						/********************************************************************/
						/* Add preference tree options                                      */
						/********************************************************************/
						// Front page...
						//GtkWidget* front =
						PreferencePages_addPage(m_notebook, "Front Page");

						{
							auto global = PreferencePages_addPage(m_notebook, "Global Preferences");
							{
								PreferencesPage preferencesPage(*this, getVBox(global));
							}
							auto group = PreferenceTree_appendPage(store, 0, "Global", global);
							{
								auto game = PreferencePages_addPage(m_notebook, "Game");
								PreferencesPage preferencesPage(*this, getVBox(game));
								g_GamesDialog.CreateGlobalFrame(preferencesPage);

								PreferenceTree_appendPage(store, &group, "Game", game);
							}
						}

						{
							auto interfacePage = PreferencePages_addPage(m_notebook, "Interface Preferences");
							{
								PreferencesPage preferencesPage(*this, getVBox(interfacePage));
								PreferencesPageCallbacks_constructPage(g_interfacePreferences, preferencesPage);
							}

							auto group = PreferenceTree_appendPage(store, 0, "Interface", interfacePage);
							PreferenceTreeGroup preferenceGroup(*this, m_notebook, store, group);

							PreferenceGroupCallbacks_constructGroup(g_interfaceCallbacks, preferenceGroup);
						}

						{
							auto display = PreferencePages_addPage(m_notebook, "Display Preferences");
							{
								PreferencesPage preferencesPage(*this, getVBox(display));
								PreferencesPageCallbacks_constructPage(g_displayPreferences, preferencesPage);
							}
							auto group = PreferenceTree_appendPage(store, 0, "Display", display);
							PreferenceTreeGroup preferenceGroup(*this, m_notebook, store, group);

							PreferenceGroupCallbacks_constructGroup(g_displayCallbacks, preferenceGroup);
						}

						{
							auto settings = PreferencePages_addPage(m_notebook, "General Settings");
							{
								PreferencesPage preferencesPage(*this, getVBox(settings));
								PreferencesPageCallbacks_constructPage(g_settingsPreferences, preferencesPage);
							}

							auto group = PreferenceTree_appendPage(store, 0, "Settings", settings);
							PreferenceTreeGroup preferenceGroup(*this, m_notebook, store, group);

							PreferenceGroupCallbacks_constructGroup(g_settingsCallbacks, preferenceGroup);
						}
					}

					gtk_tree_view_expand_all(view);

					g_object_unref(G_OBJECT(store));
				}
			}
		}
	}

	gtk_notebook_set_current_page(GTK_NOTEBOOK(m_notebook), 0);

	return dialog;
}

preferences_globals_t g_preferences_globals;

PrefsDlg g_Preferences;               // global prefs instance


void PreferencesDialog_constructWindow(ui::Window main_window)
{
	g_Preferences.m_parent = main_window;
	g_Preferences.Create();
}

void PreferencesDialog_destroyWindow()
{
	g_Preferences.Destroy();
}


PreferenceDictionary g_preferences;

PreferenceSystem &GetPreferenceSystem()
{
	return g_preferences;
}

class PreferenceSystemAPI {
PreferenceSystem *m_preferencesystem;
public:
typedef PreferenceSystem Type;

STRING_CONSTANT(Name, "*");

PreferenceSystemAPI()
{
	m_preferencesystem = &GetPreferenceSystem();
}

PreferenceSystem *getTable()
{
	return m_preferencesystem;
}
};

#include "modulesystem/singletonmodule.h"
#include "modulesystem/moduleregistry.h"

typedef SingletonModule<PreferenceSystemAPI> PreferenceSystemModule;
typedef Static<PreferenceSystemModule> StaticPreferenceSystemModule;
StaticRegisterModule staticRegisterPreferenceSystem(StaticPreferenceSystemModule::instance());

void Preferences_Load()
{
	g_GamesDialog.LoadPrefs();

	globalOutputStream() << "loading local preferences from " << g_Preferences.m_inipath->str << "\n";

	if (!Preferences_Load(g_preferences, g_Preferences.m_inipath->str, g_GamesDialog.m_sGameFile.c_str())) {
		globalOutputStream() << "failed to load local preferences from " << g_Preferences.m_inipath->str << "\n";
	}
}

void Preferences_Save()
{
	if (g_preferences_globals.disable_ini) {
		return;
	}

	g_GamesDialog.SavePrefs();

	globalOutputStream() << "saving local preferences to " << g_Preferences.m_inipath->str << "\n";

	if (!Preferences_Save_Safe(g_preferences, g_Preferences.m_inipath->str)) {
		globalOutputStream() << "failed to save local preferences to " << g_Preferences.m_inipath->str << "\n";
	}
}

void Preferences_Reset()
{
	file_remove(g_Preferences.m_inipath->str);
}


void PrefsDlg::PostModal(EMessageBoxReturn code)
{
	if (code == eIDOK) {
		Preferences_Save();
		UpdateAllWindows();
	}
}

std::vector<const char *> g_restart_required;

void PreferencesDialog_restartRequired(const char *staticName)
{
	g_restart_required.push_back(staticName);
}

void PreferencesDialog_showDialog()
{
	if (ConfirmModified("Edit Preferences") && g_Preferences.DoModal() == eIDOK) {
		if (!g_restart_required.empty()) {
			StringOutputStream message(256);
			message << "Preference changes require a restart:\n";
			for (std::vector<const char *>::iterator i = g_restart_required.begin();
			     i != g_restart_required.end(); ++i) {
				message << (*i) << '\n';
			}
			ui::alert(MainFrame_getWindow(), message.c_str());
			g_restart_required.clear();
		}
	}
}

struct GameName {
	static void Export(const Callback<void(const char *)> &returnz)
	{
		returnz(gamename_get());
	}

	static void Import(const char *value)
	{
		gamename_set(value);
	}
};

struct GameMode {
	static void Export(const Callback<void(const char *)> &returnz)
	{
		returnz(gamemode_get());
	}

	static void Import(const char *value)
	{
		gamemode_set(value);
	}
};

void RegisterPreferences(PreferenceSystem &preferences)
{
#if GDEF_OS_WINDOWS
	preferences.registerPreference( "UseCustomShaderEditor", make_property_string( g_TextEditor_useWin32Editor ) );
#else
	preferences.registerPreference("UseCustomShaderEditor", make_property_string(g_TextEditor_useCustomEditor));
	preferences.registerPreference("CustomShaderEditorCommand", make_property_string(g_TextEditor_editorCommand));
#endif

	preferences.registerPreference("GameName", make_property<GameName>());
	preferences.registerPreference("GameMode", make_property<GameMode>());
}

void Preferences_Init()
{
	RegisterPreferences(GetPreferenceSystem());
}