/*
   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
 */

//
// Floating dialog that contains a notebook with at least Entities and Group tabs
// I merged the 2 MS Windows dialogs in a single class
//
// Leonardo Zide (leo@lokigames.com)
//

#include "groupdialog.h"
#include "globaldefs.h"

#include "debugging/debugging.h"

#include <vector>
#include <gtk/gtk.h>

#include "gtkutil/widget.h"
#include "gtkutil/accelerator.h"
#include "entityinspector.h"
#include "gtkmisc.h"
#include "multimon.h"
#include "console.h"
#include "commands.h"


#include "gtkutil/window.h"

class GroupDlg {
public:
    ui::Widget m_pNotebook{ui::null};
    ui::Window m_window{ui::null};

    GroupDlg();

    void Create(ui::Window parent);

    void Show()
    {
        // workaround for strange gtk behaviour - modifying the contents of a window while it is not visible causes the window position to change without sending a configure_event
        m_position_tracker.sync(m_window);
        m_window.show();
    }

    void Hide()
    {
        m_window.hide();
    }

    WindowPositionTracker m_position_tracker;
};

namespace {
    GroupDlg g_GroupDlg;

    std::size_t g_current_page;
    std::vector<Callback<void(const Callback<void(const char *)> &)>> g_pages;
}

void GroupDialog_updatePageTitle(ui::Window window, std::size_t pageIndex)
{
    if (pageIndex < g_pages.size()) {
        g_pages[pageIndex](PointerCaller<GtkWindow, void(const char *), gtk_window_set_title>(window));
    }
}

static gboolean switch_page(GtkNotebook *notebook, gpointer page, guint page_num, gpointer data)
{
    GroupDialog_updatePageTitle(ui::Window::from(data), page_num);
    g_current_page = page_num;

    return FALSE;
}

GroupDlg::GroupDlg() : m_window(ui::null)
{
    m_position_tracker.setPosition(c_default_window_pos);
}

void GroupDlg::Create(ui::Window parent)
{
    ASSERT_MESSAGE(!m_window, "dialog already created");

    auto window = ui::Window(create_persistent_floating_window("Entities", parent));

    global_accel_connect_window(window);

    window_connect_focus_in_clear_focus_widget(window);

    m_window = window;

#if GDEF_OS_WINDOWS
    if ( g_multimon_globals.m_bStartOnPrimMon ) {
        WindowPosition pos( m_position_tracker.getPosition() );
        PositionWindowOnPrimaryScreen( pos );
        m_position_tracker.setPosition( pos );
    }
#endif
    m_position_tracker.connect(window);

    {
        ui::Widget notebook = ui::Widget::from(gtk_notebook_new());
        notebook.show();
        window.add(notebook);
        gtk_notebook_set_tab_pos(GTK_NOTEBOOK(notebook), GTK_POS_BOTTOM);
        m_pNotebook = notebook;

        notebook.connect("switch_page", G_CALLBACK(switch_page), (gpointer) window);
    }
}


ui::Widget GroupDialog_addPage(const char *tabLabel, ui::Widget widget,
                               const Callback<void(const Callback<void(const char *)> &)> &title)
{
    ui::Widget w = ui::Label(tabLabel);
    w.show();
    auto page = ui::Widget::from(gtk_notebook_get_nth_page(GTK_NOTEBOOK(g_GroupDlg.m_pNotebook),
                                                           gtk_notebook_insert_page(
                                                                   GTK_NOTEBOOK(g_GroupDlg.m_pNotebook), widget, w,
                                                                   -1)));
    g_pages.push_back(title);

    return page;
}


bool GroupDialog_isShown()
{
    return g_GroupDlg.m_window.visible();
}

void GroupDialog_setShown(bool shown)
{
    shown ? g_GroupDlg.Show() : g_GroupDlg.Hide();
}

void GroupDialog_ToggleShow()
{
    GroupDialog_setShown(!GroupDialog_isShown());
}

void GroupDialog_constructWindow(ui::Window main_window)
{
    g_GroupDlg.Create(main_window);
}

void GroupDialog_destroyWindow()
{
    ASSERT_TRUE(g_GroupDlg.m_window);
    destroy_floating_window(g_GroupDlg.m_window);
    g_GroupDlg.m_window = ui::Window{ui::null};
}


ui::Window GroupDialog_getWindow()
{
    return ui::Window(g_GroupDlg.m_window);
}

void GroupDialog_show()
{
    g_GroupDlg.Show();
}

ui::Widget GroupDialog_getPage()
{
    return ui::Widget::from(gtk_notebook_get_nth_page(GTK_NOTEBOOK(g_GroupDlg.m_pNotebook), gint(g_current_page)));
}

void GroupDialog_setPage(ui::Widget page)
{
    g_current_page = gtk_notebook_page_num(GTK_NOTEBOOK(g_GroupDlg.m_pNotebook), page);
    gtk_notebook_set_current_page(GTK_NOTEBOOK(g_GroupDlg.m_pNotebook), gint(g_current_page));
}

void GroupDialog_showPage(ui::Widget page)
{
    if (GroupDialog_getPage() == page) {
        GroupDialog_ToggleShow();
    } else {
        g_GroupDlg.m_window.show();
        GroupDialog_setPage(page);
    }
}

void GroupDialog_cycle()
{
    g_current_page = (g_current_page + 1) % g_pages.size();
    gtk_notebook_set_current_page(GTK_NOTEBOOK(g_GroupDlg.m_pNotebook), gint(g_current_page));
}

void GroupDialog_updatePageTitle(ui::Widget page)
{
    if (GroupDialog_getPage() == page) {
        GroupDialog_updatePageTitle(g_GroupDlg.m_window, g_current_page);
    }
}


#include "preferencesystem.h"

void GroupDialog_Construct()
{
    GlobalPreferenceSystem().registerPreference("EntityWnd", make_property<WindowPositionTracker_String>(
            g_GroupDlg.m_position_tracker));

    GlobalCommands_insert("ViewEntityInfo", makeCallbackF(GroupDialog_ToggleShow), Accelerator('N'));
}

void GroupDialog_Destroy()
{
}