QTfrontend/ui/widget/itemNum.cpp
author unc0rr
Sun, 02 Dec 2012 01:25:11 +0400
changeset 8178 8bd087478b48
parent 6700 e04da46ee43c
child 10108 c68cf030eded
permissions -rw-r--r--
Fix QSettings problems: - Reopen file in ReadOnly mode if it was open in ReadWrite mode and is being read. This is needed for stupid QSettings which opens file in ReadWrite mode just to call readAll() on it. - Implement setSize(0)

/*
 * Hedgewars, a free turn based strategy game
 * Copyright (c) 2006-2012 Igor Ulyanov <iulyanov@gmail.com>
 *
 * 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; version 2 of the License
 *
 * 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
 */

#include "itemNum.h"
#include "hwform.h"

#include <QMouseEvent>
#include <QPainter>

ItemNum::ItemNum(const QImage& im, const QImage& img, QWidget * parent, unsigned char min, unsigned char max) :
    QFrame(parent), m_im(im), m_img(img), infinityState(false), nonInteractive(false), minItems(min), maxItems(max),
    numItems(min+2 >= max ? min : min+2)
{
    enabled = true;
    //if(frontendEffects) setAttribute(Qt::WA_PaintOnScreen, true);
}

ItemNum::~ItemNum()
{
}

void ItemNum::mousePressEvent ( QMouseEvent * event )
{
    if(nonInteractive) return;
    if(event->button()==Qt::LeftButton && enabled)
    {
        event->accept();
        if((infinityState && numItems <= maxItems) || (!infinityState && numItems < maxItems))
        {
            incItems();
        }
        else
        {
            numItems = minItems+1;
            // appears there's an emit in there
            decItems();
        }
    }
    else if (event->button()==Qt::RightButton && enabled)
    {
        event->accept();
        if(numItems > minItems)
        {
            decItems();
        }
        else
        {
            numItems = maxItems+(infinityState?0:-1);
            incItems();
        }
    }
    else
    {
        event->ignore();
        return;
    }
    repaint();
}
void ItemNum::wheelEvent ( QWheelEvent * event )
{
    if (nonInteractive) return;
    if (!enabled)
    {
        event->ignore();
        return;
    }
    event->accept();

    bool up = (event->delta() > 0); // positive delta is up, negative is down

    // negative delta on horizontal wheel is not left, but right
    if (event->orientation() == Qt::Horizontal)
        up = !up;

    if(up)
    {
        if((infinityState && numItems <= maxItems) || (!infinityState && numItems < maxItems))
            incItems();
    }
    else
    {
        if(numItems > minItems)
            decItems();
    }
    repaint();
}

QSize ItemNum::sizeHint () const
{
    return QSize((maxItems+1)*12, 32);
}

void ItemNum::paintEvent(QPaintEvent* event)
{
    Q_UNUSED(event);

    QPainter painter(this);

    if (numItems==maxItems+1)
    {
        QRect target(0, 0, 100, 32);
        if (enabled)
        {
            painter.drawImage(target, QImage(":/res/infinity.png"));
        }
        else
        {
            painter.drawImage(target, QImage(":/res/infinitygrey.png"));
        }
    }
    else
    {
        for(int i=0; i<numItems; i++)
        {
            QRect target(11 * i, i % 2, 25, 35);
            if (enabled)
            {
                painter.drawImage(target, m_im);
            }
            else
            {
                painter.drawImage(target, m_img);
            }
        }
    }
}

unsigned char ItemNum::getItemsNum() const
{
    return numItems;
}

void ItemNum::setItemsNum(const unsigned char num)
{
    numItems=num;
    repaint();
}

void ItemNum::setInfinityState(bool value)
{
    infinityState=value;
}

void ItemNum::setEnabled(bool value)
{
    enabled=value;
    repaint();
}