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#include <qlayout.h>
#include <qwt_compass.h>
#include <qwt_compass_rose.h>
#include <qwt_dial_needle.h>
#include "compass_grid.h"
#if QT_VERSION < 0x040000
typedef QColorGroup Palette;
#else
typedef QPalette Palette;
#endif
CompassGrid::CompassGrid(QWidget *parent):
QFrame(parent)
{
#if QT_VERSION < 0x040000
setBackgroundColor(Qt::gray);
#else
QPalette p = palette();
p.setColor(backgroundRole(), Qt::gray);
setPalette(p);
#endif
#if QT_VERSION >= 0x040100
setAutoFillBackground(true);
#endif
QGridLayout *layout = new QGridLayout(this);
layout->setSpacing(5);
layout->setMargin(0);
int i;
for ( i = 0; i < 6; i++ )
{
QwtCompass *compass = createCompass(i);
layout->addWidget(compass, i / 3, i % 3);
}
#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
}
QwtCompass *CompassGrid::createCompass(int pos)
{
int c;
Palette colorGroup;
for ( c = 0; c < Palette::NColorRoles; c++ )
colorGroup.setColor((Palette::ColorRole)c, QColor());
#if QT_VERSION < 0x040000
colorGroup.setColor(Palette::Base, backgroundColor().light(120));
#else
colorGroup.setColor(Palette::Base,
palette().color(backgroundRole()).light(120));
#endif
colorGroup.setColor(Palette::Foreground,
colorGroup.color(Palette::Base));
QwtCompass *compass = new QwtCompass(this);
compass->setLineWidth(4);
compass->setFrameShadow(
pos <= 2 ? QwtCompass::Sunken : QwtCompass::Raised);
switch(pos)
{
case 0:
{
/*
A compass with a rose and no needle. Scale and rose are
rotating.
*/
compass->setMode(QwtCompass::RotateScale);
QwtSimpleCompassRose *rose = new QwtSimpleCompassRose(16, 2);
rose->setWidth(0.15);
compass->setRose(rose);
break;
}
case 1:
{
/*
A windrose, with a scale indicating the main directions only
*/
QMap<double, QString> map;
map.insert(0.0, "N");
map.insert(90.0, "E");
map.insert(180.0, "S");
map.insert(270.0, "W");
compass->setLabelMap(map);
QwtSimpleCompassRose *rose = new QwtSimpleCompassRose(4, 1);
compass->setRose(rose);
compass->setNeedle(
new QwtCompassWindArrow(QwtCompassWindArrow::Style2));
compass->setValue(60.0);
break;
}
case 2:
{
/*
A compass with a rotating needle in darkBlue. Shows
a ticks for each degree.
*/
colorGroup.setColor(Palette::Base, Qt::darkBlue);
colorGroup.setColor(Palette::Foreground,
QColor(Qt::darkBlue).dark(120));
colorGroup.setColor(Palette::Text, Qt::white);
compass->setScaleOptions(QwtDial::ScaleTicks | QwtDial::ScaleLabel);
compass->setScaleTicks(1, 1, 3);
compass->setScale(36, 5, 0);
compass->setNeedle(
new QwtCompassMagnetNeedle(QwtCompassMagnetNeedle::ThinStyle));
compass->setValue(220.0);
break;
}
case 3:
{
/*
A compass without a frame, showing numbers as tick labels.
The origin is at 220.0
*/
#if QT_VERSION < 0x040000
colorGroup.setColor(Palette::Base, backgroundColor());
#else
colorGroup.setColor(Palette::Base,
palette().color(backgroundRole()));
#endif
colorGroup.setColor(Palette::Foreground, Qt::blue);
compass->setLineWidth(0);
compass->setScaleOptions(QwtDial::ScaleBackbone |
QwtDial::ScaleTicks | QwtDial::ScaleLabel);
compass->setScaleTicks(0, 0, 3);
QMap<double, QString> map;
for ( double d = 0.0; d < 360.0; d += 60.0 )
{
QString label;
label.sprintf("%.0f", d);
map.insert(d, label);
}
compass->setLabelMap(map);
compass->setScale(36, 5, 0);
compass->setNeedle(new QwtDialSimpleNeedle(QwtDialSimpleNeedle::Ray,
false, Qt::white));
compass->setOrigin(220.0);
compass->setValue(20.0);
break;
}
case 4:
{
/*
A compass showing another needle
*/
compass->setScaleOptions(QwtDial::ScaleTicks | QwtDial::ScaleLabel);
compass->setScaleTicks(0, 0, 3);
compass->setNeedle(new QwtCompassMagnetNeedle(
QwtCompassMagnetNeedle::TriangleStyle, Qt::white, Qt::red));
compass->setValue(220.0);
break;
}
case 5:
{
/*
A compass with a yellow on black ray
*/
colorGroup.setColor(Palette::Foreground, Qt::black);
compass->setNeedle(new QwtDialSimpleNeedle(QwtDialSimpleNeedle::Ray,
false, Qt::yellow));
compass->setValue(315.0);
break;
}
}
QPalette newPalette = compass->palette();
for ( c = 0; c < Palette::NColorRoles; c++ )
{
if ( colorGroup.color((Palette::ColorRole)c).isValid() )
{
for ( int cg = 0; cg < QPalette::NColorGroups; cg++ )
{
newPalette.setColor(
(QPalette::ColorGroup)cg,
(Palette::ColorRole)c,
colorGroup.color((Palette::ColorRole)c));
}
}
}
for ( int i = 0; i < QPalette::NColorGroups; i++ )
{
QPalette::ColorGroup cg = (QPalette::ColorGroup)i;
const QColor light =
newPalette.color(cg, Palette::Base).light(170);
const QColor dark = newPalette.color(cg, Palette::Base).dark(170);
const QColor mid = compass->frameShadow() == QwtDial::Raised
? newPalette.color(cg, Palette::Base).dark(110)
: newPalette.color(cg, Palette::Base).light(110);
newPalette.setColor(cg, Palette::Dark, dark);
newPalette.setColor(cg, Palette::Mid, mid);
newPalette.setColor(cg, Palette::Light, light);
}
compass->setPalette(newPalette);
return compass;
}
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