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#include <qlayout.h>
#include <qtimer.h>
#include <qwt_analog_clock.h>
#include "attitude_indicator.h"
#include "speedo_meter.h"
#include "cockpit_grid.h"
#if QT_VERSION < 0x040000
typedef QColorGroup Palette;
#else
typedef QPalette Palette;
#endif
CockpitGrid::CockpitGrid(QWidget *parent):
QFrame(parent)
{
#if QT_VERSION >= 0x040100
setAutoFillBackground(true);
#endif
setPalette(colorTheme(QColor(Qt::darkGray).dark(150)));
QGridLayout *layout = new QGridLayout(this);
layout->setSpacing(5);
layout->setMargin(0);
int i;
for ( i = 0; i < 3; i++ )
{
QwtDial *dial = createDial(i);
layout->addWidget(dial, 0, i);
}
#if QT_VERSION < 0x040000
for ( i = 0; i < layout->numCols(); i++ )
layout->setColStretch(i, 1);
#else
for ( i = 0; i < layout->columnCount(); i++ )
layout->setColumnStretch(i, 1);
#endif
}
QwtDial *CockpitGrid::createDial(int pos)
{
QwtDial *dial = NULL;
switch(pos)
{
case 0:
{
d_clock = new QwtAnalogClock(this);
const QColor knobColor = QColor(Qt::gray).light(130);
for ( int i = 0; i < QwtAnalogClock::NHands; i++)
{
QColor handColor = QColor(Qt::gray).light(150);
int width = 8;
if ( i == QwtAnalogClock::SecondHand )
{
handColor = Qt::gray;
width = 5;
}
QwtDialSimpleNeedle *hand = new QwtDialSimpleNeedle(
QwtDialSimpleNeedle::Arrow, true, handColor, knobColor);
hand->setWidth(width);
d_clock->setHand((QwtAnalogClock::Hand)i, hand);
}
QTimer *timer = new QTimer(d_clock);
timer->connect(timer, SIGNAL(timeout()),
d_clock, SLOT(setCurrentTime()));
timer->start(1000);
dial = d_clock;
break;
}
case 1:
{
d_speedo = new SpeedoMeter(this);
d_speedo->setRange(0.0, 240.0);
d_speedo->setScale(-1, 2, 20);
QTimer *timer = new QTimer(d_speedo);
timer->connect(timer, SIGNAL(timeout()),
this, SLOT(changeSpeed()));
timer->start(50);
dial = d_speedo;
break;
}
case 2:
{
d_ai = new AttitudeIndicator(this);
QTimer *gradientTimer = new QTimer(d_ai);
gradientTimer->connect(gradientTimer, SIGNAL(timeout()),
this, SLOT(changeGradient()));
gradientTimer->start(100);
QTimer *angleTimer = new QTimer(d_ai);
angleTimer->connect(angleTimer, SIGNAL(timeout()),
this, SLOT(changeAngle()));
angleTimer->start(100);
dial = d_ai;
break;
}
}
if ( dial )
{
dial->setReadOnly(true);
dial->scaleDraw()->setPenWidth(3);
dial->setLineWidth(4);
dial->setFrameShadow(QwtDial::Sunken);
}
return dial;
}
QPalette CockpitGrid::colorTheme(const QColor &base) const
{
const QColor background = base.dark(150);
const QColor foreground = base.dark(200);
const QColor mid = base.dark(110);
const QColor dark = base.dark(170);
const QColor light = base.light(170);
const QColor text = foreground.light(800);
QPalette palette;
for ( int i = 0; i < QPalette::NColorGroups; i++ )
{
QPalette::ColorGroup cg = (QPalette::ColorGroup)i;
palette.setColor(cg, Palette::Base, base);
palette.setColor(cg, Palette::Background, background);
palette.setColor(cg, Palette::Mid, mid);
palette.setColor(cg, Palette::Light, light);
palette.setColor(cg, Palette::Dark, dark);
palette.setColor(cg, Palette::Text, text);
palette.setColor(cg, Palette::Foreground, foreground);
}
return palette;
}
void CockpitGrid::changeSpeed()
{
static double offset = 0.8;
double speed = d_speedo->value();
if ( (speed < 40.0 && offset < 0.0 ) ||
(speed > 160.0 && offset > 0.0) )
{
offset = -offset;
}
static int counter = 0;
switch(counter++ % 12 )
{
case 0:
case 2:
case 7:
case 8:
break;
default:
d_speedo->setValue(speed + offset);
}
}
void CockpitGrid::changeAngle()
{
static double offset = 0.05;
double angle = d_ai->angle();
if ( angle > 180.0 )
angle -= 360.0;
if ( (angle < -5.0 && offset < 0.0 ) ||
(angle > 5.0 && offset > 0.0) )
{
offset = -offset;
}
d_ai->setAngle(angle + offset);
}
void CockpitGrid::changeGradient()
{
static double offset = 0.005;
double gradient = d_ai->gradient();
if ( (gradient < -0.05 && offset < 0.0 ) ||
(gradient > 0.05 && offset > 0.0) )
{
offset = -offset;
}
d_ai->setGradient(gradient + offset);
}
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