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dme.cpp
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dme.cpp
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#include <QObject>
#include <QPainter>
#include "dme.h"
#include "logutil.h"
DME::DME(QWidget *parent)
: QWidget(parent),
power_b("Power", this),
mins_kts_b("Mins-Kts", this),
nav1_b("Nav1", this),
nav2_b("Nav2", this)
{
power_b.setGeometry(10, 35, 40, 20);
power_b.setStyleSheet("background-color: rgb(255, 255, 255);");
mins_kts_b.setGeometry(200, 35, 70, 20);
mins_kts_b.setStyleSheet("background-color: rgb(255, 255, 255);");
nav1_b.setGeometry(60, 10, 40, 20);
nav1_b.setStyleSheet("background-color: rgb(255, 255, 255);");
nav1_b.setObjectName("nav1");
nav2_b.setGeometry(60, 35, 40, 20);
nav2_b.setStyleSheet("background-color: rgb(255, 255, 255);");
nav2_b.setObjectName("nav2");
QObject::connect(&power_b, SIGNAL(clicked(bool)),
this, SLOT(power_button()));
QObject::connect(&mins_kts_b, SIGNAL(clicked(bool)),
this, SLOT(mins_kts_button()));
QObject::connect(&nav1_b, SIGNAL(clicked(bool)),
this, SLOT(source_button()));
QObject::connect(&nav2_b, SIGNAL(clicked(bool)),
this, SLOT(source_button()));
}
void DME::paintEvent(QPaintEvent *)
{
QPainter painter(this);
QPen pen = QPen(QColor(255, 0, 0, 255));
QBrush brush = QBrush(QColor(255, 0, 0, 255));
bool on = get_data_by_key(FGDATA_DME_POWER_BUTTON, 0);
bool mk = get_data_by_key(FGDATA_DME_SWITCH_MIN_KTS, 0);
int p = get_data_by_key(FGDATA_DME_SWITCH_POSITION, 2);
double miles = get_data_by_key(FGDATA_DME_MILES_DISPLAY, 0);
double mins_kts = get_data_by_key(FGDATA_DME_MIN_KTS_DISPLAY, 0);
QString miles_s;
QString mins_kts_s;
QString nav_name;
QString mk_name;
miles_s.setNum(miles / 10, 'f', 1);
mins_kts_s.setNum(mins_kts, 'f', 0);
// setup painter
painter.setRenderHint(QPainter::Antialiasing);
painter.setPen(pen);
QFont f = painter.font();
f.setBold(true);
f.setStyleHint(QFont::Monospace);
f.setFamily("Monospace");
f.setPixelSize(20);
painter.setFont(f);
painter.setBrush(brush);
// dark red, LED-like background
painter.fillRect(0, 0, width(), height(), QColor(20, 0, 0));
// device is off
if (!on) {
return;
}
painter.drawText(130, 30, miles_s);
painter.drawText(240, 30, mins_kts_s);
// draw nav source name and mins-kts label.
QPen y = QPen(QColor(200, 200, 0));
QFont f_n = painter.font();
f_n.setBold(false);
f_n.setPixelSize(13);
painter.setFont(f_n);
painter.setPen(y);
if (p == 1) {
nav_name = "N1";
} else if (p == 3) {
nav_name = "N2";
}
painter.drawText(110, 30, nav_name);
if (mk) {
mk_name = "Kts";
} else {
mk_name = "Mins";
}
painter.drawText(200, 30, mk_name);
}
void DME::power_button()
{
bool on = get_data_by_key(FGDATA_DME_POWER_BUTTON, 0);
if (on) {
set_data_by_key(FGDATA_DME_POWER_BUTTON, 0);
} else {
set_data_by_key(FGDATA_DME_POWER_BUTTON, 1);
}
}
void DME::mins_kts_button()
{
bool status = get_data_by_key(FGDATA_DME_SWITCH_MIN_KTS, 0);
if (status) {
set_data_by_key(FGDATA_DME_SWITCH_MIN_KTS, 0);
} else {
set_data_by_key(FGDATA_DME_SWITCH_MIN_KTS, 1);
}
}
#define SOURCE_NAV1 "instrumentation/nav/frequencies/selected-mhz"
#define SOURCE_NAV2 "instrumentation/nav[1]/frequencies/selected-mhz"
void DME::source_button()
{
QObject *s = sender();
if (s->objectName() == "nav1") {
set_data_by_key(FGDATA_DME_SWITCH_POSITION, 1);
set_data_by_key(FGDATA_DME_SOURCE, SOURCE_NAV1);
} else if (s->objectName() == "nav2") {
set_data_by_key(FGDATA_DME_SWITCH_POSITION, 3);
set_data_by_key(FGDATA_DME_SOURCE, SOURCE_NAV2);
} else {
LOGE("Invalid nav source sender");
}
}