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/*C*
*
* Hatman - The Game of Kings
* Copyright (C) 1997 James Pharaoh & Timothy Fisken
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
*C*/
#include "CtrlEvent.h"
#include "Events.h"
#include "MenuCtrl.h"
#include "../gl/Color.h"
#include "../gl/Console.h"
#include "../gl/Font.h"
#include "../gl/Mouse.h"
#include "../gl/VgaBlur.h"
#include "../gl/keycodes.h"
#include "../util/String.h"
//--------------------------------------------------------------------------------------------------------------------------------
class MenuItem : public Object
{
private:
Events* events;
Control* dest;
public:
int id;
String text;
MenuItem(Events* _events, Control* _dest, int _id, const char* _text)
{ events = _events; dest = _dest; id = _id; text = _text; }
};
template Collection<MenuItem>;
//--------------------------------------------------------------------------------------------------------------------------------
MenuCtrl::MenuCtrl(Rect _rect, Events* _events, Control* _notify, Font* _font)
: Control(_rect, _events)
{
notify = _notify;
font = _font;
pSel = 0;
pTop = 0;
menuItems = new Collection<MenuItem>;
}
MenuCtrl::~MenuCtrl()
{
delete menuItems;
}
//--------------------------------------------------------------------------------------------------------------------------------
Rect MenuCtrl::itemRect(int i)
{
return Rect(rect().topLeft() + Point(0, i * font->h() - top()), Point(rect().w, font->h()));
}
bool MenuCtrl::bringIntoView()
{
int y = font->h() * sel();
// scroll up if we have to
if(y < top())
{
top(y);
return true;
}
// scroll down if we have to
if(y + font->h() > top() + rect().h)
{
int newTop;
if(font->h() > rect().h) newTop = y;
else newTop = y + font->h() - rect().h;
if(newTop != top())
{
top(newTop);
return true;
}
}
return false;
}
//--------------------------------------------------------------------------------------------------------------------------------
void MenuCtrl::evLBDown(Point p)
{
int newSel = (p.y + top() - rect().top()) / font->h(); // confused?
int oldSel = sel();
if(newSel == oldSel || newSel >= menuItems->length()) return;
sel(newSel);
if(!rect().contains(itemRect(newSel)))
{
if(bringIntoView())
events->redraw(rect());
}
/*
{
int newTop = font->h() * newSel;
if(newTop + rect().h > menuItems->length() * font->h())
newTop = menuItems->length() * font->h() - rect().h;
if(newTop < 0) newTop = 0; // this should never happen...
top(newTop);
events->redraw(rect());
}
*/
else
{
events->redraw(itemRect(oldSel));
events->redraw(itemRect(newSel));
}
}
void MenuCtrl::evDbClick(Point p)
{
int newSel = (p.y + top() - rect().top()) / font->h(); // confused?
int oldSel = sel();
if(newSel >= menuItems->length()) return;
sel(newSel);
if(newSel != oldSel)
{
events->redraw(itemRect(oldSel).clipTo(rect()));
events->redraw(itemRect(newSel).clipTo(rect()));
}
events->add(new CommandEvent(notify, menuItems->at(sel())->id));
}
//--------------------------------------------------------------------------------------------------------------------------------
void MenuCtrl::evKeyDown(int key)
{
if(IS_KEY_UP(key))
{
if(sel() > 0)
{
int oldSel = sel();
int newSel = sel() - 1;
sel(newSel);
if(bringIntoView()) events->redraw(rect());
else
{
events->redraw(itemRect(oldSel));
events->redraw(itemRect(newSel));
}
}
}
if(IS_KEY_DOWN(key))
{
if(sel() < menuItems->length()-1)
{
int oldSel = sel();
int newSel = sel() + 1;
sel(newSel);
if(bringIntoView()) events->redraw(rect());
else
{
events->redraw(itemRect(oldSel));
events->redraw(itemRect(newSel));
}
}
}
}
void MenuCtrl::evKeyRep(int key)
{
evKeyDown(key);
}
//--------------------------------------------------------------------------------------------------------------------------------
void MenuCtrl::draw(Rect redrawRect)
{
font->hAlign = Font::HMiddle;
font->vAlign = Font::VMiddle;
// FIXME this should figure out which are on screen first
for(int i=0; i<menuItems->length(); i++)
{
Rect miRect = itemRect(i);
if(!miRect.meets(rect()) || !miRect.meets(redrawRect)) continue;
MenuItem* mi = menuItems->at(i);
if(sel() == i) screen->fillBox(miRect, Color(colorRed, 0x7F));
font->writef(screen, miRect.middle(), colorWhite, "%s", (const char*) mi->text);
}
}
//--------------------------------------------------------------------------------------------------------------------------------
void MenuCtrl::add(int id, const char* text)
{
menuItems->add(new MenuItem(events, notify, id, text));
}
//--------------------------------------------------------------------------------------------------------------------------------
int MenuCtrl::itemId()
{
return menuItems->at(sel())->id;
}
//--------------------------------------------------------------------------------------------------------------------------------
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