QT-飞机水平仪图标
- 一、演示效果
- 二、关键程序
- 三、下载链接
一、演示效果
二、关键程序
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <QtCore>
#include <QtGui>
#include <QDebug>
#include <QTableWidget>
#include <QHeaderView>
#include "qFlightInstruments.h"
QADI::QADI(QWidget *parent)
: QWidget(parent)
{
connect(this, SIGNAL(canvasReplot(void)), this, SLOT(canvasReplot_slot(void)));
m_sizeMin = 200;
m_sizeMax = 600;
m_offset = 2;
m_size = m_sizeMin - 2*m_offset;
setMinimumSize(m_sizeMin, m_sizeMin);
setMaximumSize(m_sizeMax, m_sizeMax);
resize(m_sizeMin, m_sizeMin);
setFocusPolicy(Qt::NoFocus);
m_roll = 0.0;
m_pitch = 0.0;
}
QADI::~QADI()
{
}
void QADI::canvasReplot_slot(void)
{
update();
}
void QADI::resizeEvent(QResizeEvent *event)
{
m_size = qMin(width(),height()) - 2*m_offset;
}
void QADI::paintEvent(QPaintEvent *)
{
QPainter painter(this);
QBrush bgSky(QColor(48,172,220));
QBrush bgGround(QColor(247,168,21));
QPen whitePen(Qt::white);
QPen blackPen(Qt::black);
QPen pitchPen(Qt::white);
QPen pitchZero(Qt::green);
whitePen.setWidth(2);
blackPen.setWidth(2);
pitchZero.setWidth(3);
painter.setRenderHint(QPainter::Antialiasing);
painter.translate(width() / 2, height() / 2);
painter.rotate(m_roll);
// FIXME: AHRS output left-hand values
double pitch_tem = -m_pitch;
// draw background
{
int y_min, y_max;
y_min = m_size/2*-40.0/45.0;
y_max = m_size/2* 40.0/45.0;
int y = m_size/2*pitch_tem/45.;
if( y < y_min ) y = y_min;
if( y > y_max ) y = y_max;
int x = sqrt(m_size*m_size/4 - y*y);
qreal gr = atan((double)(y)/x);
gr = gr * 180./3.1415926;
painter.setPen(blackPen);
painter.setBrush(bgSky);
painter.drawChord(-m_size/2, -m_size/2, m_size, m_size,
gr*16, (180-2*gr)*16);
painter.setBrush(bgGround);
painter.drawChord(-m_size/2, -m_size/2, m_size, m_size,
gr*16, -(180+2*gr)*16);
}
// set mask
QRegion maskRegion(-m_size/2, -m_size/2, m_size, m_size, QRegion::Ellipse);
painter.setClipRegion(maskRegion);
// draw pitch lines & marker
{
int x, y, x1, y1;
int textWidth;
double p, r;
int ll = m_size/8, l;
int fontSize = 8;
QString s;
pitchPen.setWidth(2);
painter.setFont(QFont("", fontSize));
// draw lines
for(int i=-9; i<=9; i++) {
p = i*10;
s = QString("%1").arg(-p);
if( i % 3 == 0 )
l = ll;
else
l = ll/2;
if( i == 0 ) {
painter.setPen(pitchZero);
l = l * 1.8;
} else {
painter.setPen(pitchPen);
}
y = m_size/2*p/45.0 - m_size/2*pitch_tem/45.;
x = l;
r = sqrt(x*x + y*y);
if( r > m_size/2 ) continue;
painter.drawLine(QPointF(-l, 1.0*y), QPointF(l, 1.0*y));
textWidth = 100;
if( i % 3 == 0 && i != 0 ) {
painter.setPen(QPen(Qt::white));
x1 = -x-2-textWidth;
y1 = y - fontSize/2 - 1;
painter.drawText(QRectF(x1, y1, textWidth, fontSize+2),
Qt::AlignRight|Qt::AlignVCenter, s);
}
}
// draw marker
int markerSize = m_size/20;
float fx1, fy1, fx2, fy2, fx3, fy3;
painter.setBrush(QBrush(Qt::red));
painter.setPen(Qt::NoPen);
fx1 = markerSize;
fy1 = 0;
fx2 = fx1 + markerSize;
fy2 = -markerSize/2;
fx3 = fx1 + markerSize;
fy3 = markerSize/2;
QPointF points[3] = {
QPointF(fx1, fy1),
QPointF(fx2, fy2),
QPointF(fx3, fy3)
};
painter.drawPolygon(points, 3);
QPointF points2[3] = {
QPointF(-fx1, fy1),
QPointF(-fx2, fy2),
QPointF(-fx3, fy3)
};
painter.drawPolygon(points2, 3);
}
// draw roll degree lines
{
int nRollLines = 36;
float rotAng = 360.0 / nRollLines;
int rollLineLeng = m_size/25;
double fx1, fy1, fx2, fy2;
int fontSize = 8;
QString s;
blackPen.setWidth(1);
painter.setPen(blackPen);
painter.setFont(QFont("", fontSize));
for(int i=0; i<nRollLines; i++) {
if( i < nRollLines/2 )
s = QString("%1").arg(-i*rotAng);
else
s = QString("%1").arg(360-i*rotAng);
fx1 = 0;
fy1 = -m_size/2 + m_offset;
fx2 = 0;
if( i % 3 == 0 ) {
fy2 = fy1 + rollLineLeng;
painter.drawLine(QPointF(fx1, fy1), QPointF(fx2, fy2));
fy2 = fy1 + rollLineLeng+2;
painter.drawText(QRectF(-50, fy2, 100, fontSize+2),
Qt::AlignCenter, s);
} else {
fy2 = fy1 + rollLineLeng/2;
painter.drawLine(QPointF(fx1, fy1), QPointF(fx2, fy2));
}
painter.rotate(rotAng);
}
}
// draw roll marker
{
int rollMarkerSize = m_size/25;
double fx1, fy1, fx2, fy2, fx3, fy3;
painter.rotate(-m_roll);
painter.setBrush(QBrush(Qt::black));
fx1 = 0;
fy1 = -m_size/2 + m_offset;
fx2 = fx1 - rollMarkerSize/2;
fy2 = fy1 + rollMarkerSize;
fx3 = fx1 + rollMarkerSize/2;
fy3 = fy1 + rollMarkerSize;
QPointF points[3] = {
QPointF(fx1, fy1),
QPointF(fx2, fy2),
QPointF(fx3, fy3)
};
painter.drawPolygon(points, 3);
}
}
void QADI::keyPressEvent(QKeyEvent *event)
{
switch (event->key()) {
case Qt::Key_Left:
m_roll -= 1.0;
break;
case Qt::Key_Right:
m_roll += 1.0;
break;
case Qt::Key_Down:
if(m_pitch>-90.)
m_pitch -=1.0;
break;
case Qt::Key_Up:
if(m_pitch<90.)
m_pitch +=1.0;
break;
default:
QWidget::keyPressEvent(event);
break;
}
update();
}
QCompass::QCompass(QWidget *parent)
: QWidget(parent)
{
connect(this, SIGNAL(canvasReplot(void)), this, SLOT(canvasReplot_slot(void)));
m_sizeMin = 200;
m_sizeMax = 600;
m_offset = 2;
m_size = m_sizeMin - 2*m_offset;
setMinimumSize(m_sizeMin, m_sizeMin);
setMaximumSize(m_sizeMax, m_sizeMax);
resize(m_sizeMin, m_sizeMin);
setFocusPolicy(Qt::NoFocus);
m_yaw = 0.0;
m_alt = 0.0;
m_h = 0.0;
}
QCompass::~QCompass()
{
}
void QCompass::canvasReplot_slot(void)
{
update();
}
void QCompass::resizeEvent(QResizeEvent *event)
{
m_size = qMin(width(),height()) - 2*m_offset;
}
void QCompass::paintEvent(QPaintEvent *)
{
QPainter painter(this);
QBrush bgGround(QColor(48,172,220));
QPen whitePen(Qt::white);
QPen blackPen(Qt::black);
QPen redPen(Qt::red);
QPen bluePen(Qt::blue);
QPen greenPen(Qt::green);
whitePen.setWidth(1);
blackPen.setWidth(2);
redPen.setWidth(2);
bluePen.setWidth(2);
greenPen.setWidth(2);
painter.setRenderHint(QPainter::Antialiasing);
painter.translate(width() / 2, height() / 2);
// draw background
{
painter.setPen(blackPen);
painter.setBrush(bgGround);
painter.drawEllipse(-m_size/2, -m_size/2, m_size, m_size);
}
// draw yaw lines
{
int nyawLines = 36;
float rotAng = 360.0 / nyawLines;
int yawLineLeng = m_size/25;
double fx1, fy1, fx2, fy2;
int fontSize = 8;
QString s;
blackPen.setWidth(1);
painter.setPen(blackPen);
for(int i=0; i<nyawLines; i++) {
if( i == 0 ) {
s = "N";
painter.setPen(bluePen);
painter.setFont(QFont("", fontSize*1.3));
} else if ( i == 9 ) {
s = "W";
painter.setPen(blackPen);
painter.setFont(QFont("", fontSize*1.3));
} else if ( i == 18 ) {
s = "S";
painter.setPen(redPen);
painter.setFont(QFont("", fontSize*1.3));
} else if ( i == 27 ) {
s = "E";
painter.setPen(blackPen);
painter.setFont(QFont("", fontSize*1.3));
} else {
s = QString("%1").arg(i*rotAng);
painter.setPen(blackPen);
painter.setFont(QFont("", fontSize));
}
fx1 = 0;
fy1 = -m_size/2 + m_offset;
fx2 = 0;
if( i % 3 == 0 ) {
fy2 = fy1 + yawLineLeng;
painter.drawLine(QPointF(fx1, fy1), QPointF(fx2, fy2));
fy2 = fy1 + yawLineLeng+4;
painter.drawText(QRectF(-50, fy2, 100, fontSize+2),
Qt::AlignCenter, s);
} else {
fy2 = fy1 + yawLineLeng/2;
painter.drawLine(QPointF(fx1, fy1), QPointF(fx2, fy2));
}
painter.rotate(-rotAng);
}
}
// draw S/N arrow
{
int arrowWidth = m_size/5;
double fx1, fy1, fx2, fy2, fx3, fy3;
fx1 = 0;
fy1 = -m_size/2 + m_offset + m_size/25 + 15;
fx2 = -arrowWidth/2;
fy2 = 0;
fx3 = arrowWidth/2;
fy3 = 0;
painter.setPen(Qt::NoPen);
painter.setBrush(QBrush(Qt::blue));
QPointF pointsN[3] = {
QPointF(fx1, fy1),
QPointF(fx2, fy2),
QPointF(fx3, fy3)
};
painter.drawPolygon(pointsN, 3);
fx1 = 0;
fy1 = m_size/2 - m_offset - m_size/25 - 15;
fx2 = -arrowWidth/2;
fy2 = 0;
fx3 = arrowWidth/2;
fy3 = 0;
painter.setBrush(QBrush(Qt::red));
QPointF pointsS[3] = {
QPointF(fx1, fy1),
QPointF(fx2, fy2),
QPointF(fx3, fy3)
};
painter.drawPolygon(pointsS, 3);
}
// draw yaw marker
{
int yawMarkerSize = m_size/12;
double fx1, fy1, fx2, fy2, fx3, fy3;
painter.rotate(-m_yaw);
painter.setBrush(QBrush(QColor(0xFF, 0x00, 0x00, 0xE0)));
fx1 = 0;
fy1 = -m_size/2 + m_offset;
fx2 = fx1 - yawMarkerSize/2;
fy2 = fy1 + yawMarkerSize;
fx3 = fx1 + yawMarkerSize/2;
fy3 = fy1 + yawMarkerSize;
QPointF points[3] = {
QPointF(fx1, fy1),
QPointF(fx2, fy2),
QPointF(fx3, fy3)
};
painter.drawPolygon(points, 3);
painter.rotate(m_yaw);
}
// draw altitude
{
int altFontSize = 13;
int fx, fy, w, h;
QString s;
char buf[200];
w = 130;
h = 2*(altFontSize + 8);
fx = -w/2;
fy = -h/2;
blackPen.setWidth(2);
painter.setPen(blackPen);
painter.setBrush(QBrush(Qt::white));
painter.setFont(QFont("", altFontSize));
painter.drawRoundedRect(fx, fy, w, h, 6, 6);
painter.setPen(bluePen);
sprintf(buf, "ALT: %6.1f m", m_alt);
s = buf;
painter.drawText(QRectF(fx, fy+2, w, h/2), Qt::AlignCenter, s);
sprintf(buf, "H: %6.1f m", m_h);
s = buf;
painter.drawText(QRectF(fx, fy+h/2, w, h/2), Qt::AlignCenter, s);
}
}
void QCompass::keyPressEvent(QKeyEvent *event)
{
switch (event->key()) {
case Qt::Key_Left:
m_yaw -= 1.0;
break;
case Qt::Key_Right:
m_yaw += 1.0;
break;
case Qt::Key_Down:
m_alt -= 1.0;
break;
case Qt::Key_Up:
m_alt += 1.0;
break;
case Qt::Key_W:
m_h += 1.0;
break;
case Qt::Key_S:
m_h -= 1.0;
break;
default:
QWidget::keyPressEvent(event);
break;
}
update();
}
QKeyValueListView::QKeyValueListView(QWidget *parent) : QTableWidget(parent)
{
connect(this, SIGNAL(listUpdate(void)), this, SLOT(listUpdate_slot(void)));
m_mutex = new QMutex();
// set row & column numbers
setRowCount(0);
setColumnCount(2);
// set no headers
//verticalHeader()->hide();
//horizontalHeader()->hide();
QStringList htb = {"Name", "Value"};
this->setHorizontalHeaderLabels(htb);
// set last section is stretch-able
QHeaderView *HorzHdr = horizontalHeader();
HorzHdr->setStretchLastSection(true);
HorzHdr->resizeSection(0, 80); // set first column width
// disable table edit & focus
setEditTriggers(QTableWidget::NoEditTriggers);
setFocusPolicy(Qt::NoFocus);
}
QKeyValueListView::~QKeyValueListView()
{
delete m_mutex;
}
void QKeyValueListView::listUpdate_slot(void)
{
int i, n;
ListMap::iterator it;
QColor clCL1, clCL2;
QColor clB1, clB2;
int fontSize = 8;
int rowHeight = 20;
clCL1 = QColor(0x00, 0x00, 0xFF);
clCL2 = QColor(0x00, 0x00, 0x00);
clB1 = QColor(0xFF, 0xFF, 0xFF);
clB2 = QColor(0xE0, 0xE0, 0xE0);
m_mutex->lock();
n = m_data.size();
setRowCount(n);
setColumnCount(2);
for(i=0, it=m_data.begin(); it!=m_data.end(); i++, it++) {
// set name cell
if( this->item(i, 0) != NULL ) {
this->item(i, 0)->setText(it.key());
} else {
QTableWidgetItem* item = new QTableWidgetItem();
item->setText(it.key());
item->setTextColor(clCL1);
if( i % 2 == 0 ) item->setBackgroundColor(clB1);
else item->setBackgroundColor(clB2);
item->setFont(QFont("", fontSize));
this->setItem(i, 0, item);
}
// set value cell
if( this->item(i, 1) != NULL ) {
this->item(i, 1)->setText(it.value());
} else {
QTableWidgetItem* item = new QTableWidgetItem();
item->setText(it.value());
item->setTextColor(clCL2);
if( i % 2 == 0 ) item->setBackgroundColor(clB1);
else item->setBackgroundColor(clB2);
item->setFont(QFont("", fontSize));
this->setItem(i, 1, item);
}
setRowHeight(i, rowHeight);
}
m_mutex->unlock();
}
三、下载链接
https://download.csdn.net/download/u013083044/89067703