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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set et sw=2 ts=2: */
/***************************************************************************
* outputwindow.cc
*
* Sat Aug 4 13:44:41 CEST 2012
* Copyright 2012 Bent Bisballe Nyeng
* deva@aasimon.org
****************************************************************************/
/*
* This file is part of Kaiman.
*
* Kaiman 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.
*
* Kaiman 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 Kaiman; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
*/
#include "outputwindow.h"
#include <QPixmap>
#include <QPainter>
#include <math.h>
OutputWindow::OutputWindow()
{
QPixmap img("gfx/kaiman.png");
//QPixmap img("gfx/arrow.png");
kaiman = img.toImage();
/*
QTransform t;
t.scale(0.2, 0.2);
kaiman = kaiman.transformed(t, Qt::SmoothTransformation);
*/
connect(&timer, SIGNAL(timeout()), this, SLOT(timeout()));
timer.setSingleShot(true);
timer.start(25);
reset();
}
void OutputWindow::timeout()
{
/*
x++;
y++;
r++;
*/
repaint();
timer.start(25);
}
void OutputWindow::paintEvent(QPaintEvent *)
{
// sem.acquire();
QPainter p(this);
QTransform t;
t.rotate(-r + 90);
t.scale(100.0 / kaiman.width(), 100.0 / kaiman.width());
QImage img = kaiman.transformed(t, Qt::SmoothTransformation);
p.drawImage(x - img.width()/2, y - img.height()/2, img);
QPen pen(QColor(255,0,0,100));
pen.setWidth(4);
p.setPen(pen);
p.drawLines(points);
sem.release();
}
void OutputWindow::reset()
{
points.clear();
x = width() / 2;
y = height() / 2;
r = 0;
}
static inline int sign(int x)
{
if(x > 0) return 1;
return -1;
}
void OutputWindow::forward(int x)
{
sem.acquire();
float target_x = sin(r * (M_PI / 180.0)) * x;
float target_y = cos(r * (M_PI / 180.0)) * x;
float source_x = this->x;
float source_y = this->y;
for(int i = 0; i < abs(x); i++) {
float d = (float)i / (float)x * sign(x);
this->x = source_x + target_x * d;
this->y = source_y + target_y * d;
points.append(QPointF(this->x, this->y));
sem.acquire();
}
}
void OutputWindow::turn(int x)
{
sem.acquire();
for(int i = 0; i < abs(x) * 2; i++) {
this->r += sign(x) * 0.5;
sem.acquire();
}
}
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