/*  Starshatter: The Open Source Project
    Copyright (c) 2021-2024, Starshatter: The Open Source Project Contributors
    Copyright (c) 2011-2012, Starshatter OpenSource Distribution Contributors
    Copyright (c) 1997-2006, Destroyer Studios LLC.

    AUTHOR:       John DiCamillo


    OVERVIEW
    ========
    Simple menu hierarchy class
*/

#include "Menu.h"

// +--------------------------------------------------------------------+

void
Menu::AddItem(Text label, DWORD value, bool enabled)
{
    MenuItem* item = new MenuItem(label, value, enabled);

    if (item) {
        item->menu = this;
        items.append(item);
    }
}

void
Menu::AddItem(MenuItem* item)
{
    if (item->submenu)
    item->submenu->SetParent(this);
    item->menu = this;
    items.append(item);
}

void
Menu::AddMenu(Text label, Menu* menu, DWORD value)
{
    MenuItem* item = new MenuItem(label, value);

    if (item) {
        item->menu     = this;
        item->submenu  = menu;
        menu->parent   = this;

        items.append(item);
    }
}

MenuItem*
Menu::GetItem(int index)
{
    if (index >= 0 && index < items.size())
    return items[index];

    return 0;
}

void
Menu::SetItem(int index, MenuItem* item)
{
    if (item && index >= 0 && index < items.size())
    items[index] = item;
}

int
Menu::NumItems() const
{
    return items.size();
}

void
Menu::ClearItems()
{
    items.destroy();
}


// +--------------------------------------------------------------------+

MenuItem::MenuItem(Text label, DWORD value, bool e)
: text(label), data(value), enabled(e), submenu(0), selected(0)
{ }

MenuItem::~MenuItem()
{ }

// +--------------------------------------------------------------------+

Menu*
MenuHistory::GetCurrent()
{
    int n = history.size();

    if (n)
    return history[n-1];

    return 0;
}

Menu*
MenuHistory::GetLevel(int n)
{
    if (n >= 0 && n < history.size())
    return history[n];

    return 0;
}

Menu*
MenuHistory::Find(const char* title)
{
    for (int i = 0; i < history.size(); i++)
    if (history[i]->GetTitle() == title)
    return history[i];

    return 0;
}

void
MenuHistory::Pop()
{
    int n = history.size();

    if (n)
    history.removeIndex(n-1);
}

void
MenuHistory::Push(Menu* menu)
{
    history.append(menu);
}

void
MenuHistory::Clear()
{
    history.clear();
}