QTfrontend/itemNum.cpp
author nemo
Thu, 01 Jul 2010 23:41:10 -0400
changeset 3608 c509bbc779e7
parent 2377 f3fab2b09e0c
child 4412 c9a78ba03679
permissions -rw-r--r--
Revert prior attempted optimisation. Gridding the land pays in some situations, but not all. Restricting to an upper bound might help, but overall, seems too fuzzy to be worth it. On one side is increased cost of Add/Delete + extra test on collision check, on the other is skipping the list iteration. Perhaps for large lists.
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/*
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 * Hedgewars, a free turn based strategy game
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 * Copyright (c) 2006-2008 Ulyanov Igor <iulyanov@gmail.com>
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 *
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 * This program is free software; you can redistribute it and/or modify
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 * it under the terms of the GNU General Public License as published by
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 * the Free Software Foundation; version 2 of the License
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 *
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 * This program is distributed in the hope that it will be useful,
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 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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 * GNU General Public License for more details.
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 *
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 * You should have received a copy of the GNU General Public License
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 * along with this program; if not, write to the Free Software
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 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
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 */
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#include "itemNum.h"
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#include "hwform.h"
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#include <QMouseEvent>
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#include <QPainter>
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ItemNum::ItemNum(const QImage& im, QWidget * parent, unsigned char min, unsigned char max) :
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  QFrame(parent), m_im(im), infinityState(false), nonInteractive(false), minItems(min), maxItems(max),
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  numItems(min+2 >= max ? min : min+2)
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{
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    if(frontendEffects) setAttribute(Qt::WA_PaintOnScreen, true);
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}
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ItemNum::~ItemNum()
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{
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}
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void ItemNum::mousePressEvent ( QMouseEvent * event )
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{
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  if(nonInteractive) return;
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  if(event->button()==Qt::LeftButton) {
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    event->accept();
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    if((infinityState && numItems <= maxItems) || (!infinityState && numItems < maxItems)) {
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      incItems();
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    } else {
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      numItems = minItems+1;
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      // appears there's an emit in there
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      decItems();
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    }
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  } else if (event->button()==Qt::RightButton) {
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    event->accept();
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    if(numItems > minItems) {
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      decItems();
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    } else {
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      numItems = maxItems+(infinityState?0:-1);
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      incItems();
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    }
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  } else {
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    event->ignore();
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    return;
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  }
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  repaint();
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}
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QSize ItemNum::sizeHint () const
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{
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  return QSize((maxItems+1)*12, 32);
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}
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void ItemNum::paintEvent(QPaintEvent* event)
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{
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  QPainter painter(this);
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  if (numItems==maxItems+1) {
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    QRect target(0, 0, 100, 32);
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    painter.drawImage(target, QImage(":/res/infinity.png"));
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  } else {
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    for(int i=0; i<numItems; i++) {
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      QRect target(11 * i, i % 2, 25, 35);
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      painter.drawImage(target, m_im);
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    }
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  }
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}
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unsigned char ItemNum::getItemsNum() const
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{
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  return numItems;
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}
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void ItemNum::setItemsNum(const unsigned char num)
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{
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  numItems=num;
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}
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void ItemNum::setInfinityState(bool value)
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{
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  infinityState=value;
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}