Qt 飞机仪表显示
【摘要】
使用Qt简单谢了一个飞机的一小部分仪表，还没有写完，目前只写了一个界面，不过思想应该是一样的。
效果图如下
其中主要由转速表，和下面的部分数字显示构成
转速表代码
.h文件
#ifndef CONTROL_ENGINE_H#define CONTROL_ENG...
使用Qt简单谢了一个飞机的一小部分仪表，还没有写完，目前只写了一个界面，不过思想应该是一样的。
效果图如下
其中主要由转速表，和下面的部分数字显示构成
转速表代码
.h文件
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#ifndef CONTROL_ENGINE_H
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#define CONTROL_ENGINE_H
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#include <QWidget>
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#include <QPainter>
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#include <QtMath>
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#define PI 3.1415926
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#define GREEN 0,255,0
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#define YELLOW 211,137,50
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#define WHITE 255,255,255
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namespace Ui {
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class Control_Engine;
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}
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class Control_Engine : public QWidget
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{
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Q_OBJECT
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public:
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explicit Control_Engine(QWidget *parent,int temp);
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~Control_Engine();
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void set_Engine(int temp);
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private:
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bool eventFilter(QObject *temp1, QEvent *temp2);
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void draw_Engine();
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void draw_Percent();
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private:
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Ui::Control_Engine *ui;
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int num_Engine;
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int num_Percent;
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};
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#endif // CONTROL_ENGINE_H
cpp文件
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#include "control_engine.h"
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#include "ui_control_engine.h"
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#include <QDebug>
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Control_Engine::Control_Engine(QWidget *parent,int temp) :
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QWidget(parent),
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ui(new Ui::Control_Engine)
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{
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ui->setupUi(this);
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ui->label_draw->installEventFilter(this);
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ui->label_percent->installEventFilter(this);
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num_Engine = 0;
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num_Percent = 0;
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if(temp == 0)
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{
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ui->label_draw->move(50,0);
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ui->label->move(40,20);
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ui->label_percent->move(0,17);
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}
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else if(temp == 1)
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{
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ui->label_draw->move(0,0);
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ui->label->move(110,20);
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ui->label_percent->move(70,17);
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}
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}
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Control_Engine::~Control_Engine()
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{
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delete ui;
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}
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void Control_Engine::set_Engine(int temp)
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{
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num_Engine = temp;
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num_Percent = temp/2;
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update();
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}
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bool Control_Engine::eventFilter(QObject *temp1, QEvent *temp2)
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{
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if((temp1 == ui->label_draw)&&temp2->type() == QEvent::Paint)
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{
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draw_Engine();
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}
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if((temp1 == ui->label_percent)&&temp2->type() == QEvent::Paint)
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{
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draw_Percent();
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}
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}
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void Control_Engine::draw_Engine()
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{
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-
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if(num_Engine<=200)
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{
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QPainter painter1(ui->label_draw);
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painter1.setRenderHint(QPainter::Antialiasing,true);
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painter1.setPen(QPen(QColor(GREEN),3,Qt::SolidLine,Qt::FlatCap));
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painter1.drawArc(13,3,54,54,180*16,270*16);
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painter1.drawLine(3,30,14,30);
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QPainter painter2(ui->label_draw);
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painter2.setRenderHint(QPainter::Antialiasing,true);
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painter2.setPen(QPen(QColor(GREEN),3,Qt::SolidLine,Qt::FlatCap));
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painter2.drawLine(40,30,(40+27*qSin(num_Engine*PI/180.0)),(30-27*qCos(num_Engine*PI/180.0)));
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}
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else
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{
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QPainter painter1(ui->label_draw);
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painter1.setRenderHint(QPainter::Antialiasing,true);
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painter1.setPen(QPen(QColor(YELLOW),3,Qt::SolidLine,Qt::FlatCap));
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painter1.drawArc(13,3,54,54,180*16,270*16);
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painter1.drawLine(3,30,14,30);
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QPainter painter2(ui->label_draw);
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painter2.setRenderHint(QPainter::Antialiasing,true);
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painter2.setPen(QPen(QColor(YELLOW),3,Qt::SolidLine,Qt::FlatCap));
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painter2.drawLine(40,30,(40+27*qSin(num_Engine*PI/180.0)),(30-27*qCos(num_Engine*PI/180.0)));
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}
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}
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void Control_Engine::draw_Percent()
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{
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if(num_Percent<=100)
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{
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QPainter painter1(ui->label_percent);
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painter1.setPen(QPen(QColor(WHITE),1.5));
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QRect rect1(1,3,36,20);
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painter1.drawRect(rect1);
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QPainter painter2(ui->label_percent);
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painter2.setPen(QPen(QColor(GREEN),1.5));
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QString str = QString::number(num_Percent,10);
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QFont font("宋体",12,QFont::Bold);
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painter2.setFont(font);
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painter2.drawText(rect1,Qt::AlignCenter,str);
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}
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else
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{
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QPainter painter1(ui->label_percent);
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painter1.setPen(QPen(QColor(WHITE),1.5));
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QRect rect1(1,3,36,20);
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painter1.drawRect(rect1);
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QPainter painter2(ui->label_percent);
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painter2.setPen(QPen(QColor(YELLOW),1.5));
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QString str = QString::number(num_Percent,10);
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QFont font("宋体",12,QFont::Bold);
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painter2.setFont(font);
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painter2.drawText(rect1,Qt::AlignCenter,str);
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}
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}
百分比代码
.h.
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#ifndef CONTROL_PERCENT_H
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#define CONTROL_PERCENT_H
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#include <QWidget>
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#include <QPainter>
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-
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#define GREEN 0,255,0
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#define WHITE 255,255,255
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namespace Ui {
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class Control_Percent;
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}
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class Control_Percent : public QWidget
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{
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Q_OBJECT
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public:
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explicit Control_Percent(QWidget *parent = 0);
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~Control_Percent();
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void set_Percent(int temp);
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private:
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void draw_Percent();
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bool eventFilter(QObject *temp1, QEvent *temp2);
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private:
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Ui::Control_Percent *ui;
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int num_Percent;
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};
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#endif // CONTROL_PERCENT_H
cpp
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#include "control_percent.h"
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#include "ui_control_percent.h"
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Control_Percent::Control_Percent(QWidget *parent) :
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QWidget(parent),
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ui(new Ui::Control_Percent)
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{
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ui->setupUi(this);
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num_Percent = 0;
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ui->label_percent->installEventFilter(this);
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}
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Control_Percent::~Control_Percent()
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{
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delete ui;
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}
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void Control_Percent::set_Percent(int temp)
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{
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num_Percent = temp;
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}
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void Control_Percent::draw_Percent()
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{
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QPainter painter1(ui->label_percent);
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painter1.setPen(QPen(QColor(WHITE),1.5));
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QRect rect1(1,3,36,20);
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painter1.drawRect(rect1);
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QPainter painter2(ui->label_percent);
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painter2.setPen(QPen(QColor(GREEN),1.5));
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QString str = QString::number(num_Percent,10);
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QFont font("宋体",12,QFont::Bold);
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painter2.setFont(font);
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painter2.drawText(rect1,Qt::AlignCenter,str);
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}
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bool Control_Percent::eventFilter(QObject *temp1, QEvent *temp2)
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{
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if((temp1 == ui->label_percent)&&temp2->type() == QEvent::Paint)
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{
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draw_Percent();
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}
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}
剩下的其它小部分代码
界面初始化部分代码
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void MainWidget::set_Form_down(int temp)
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{
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switch (temp) {
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case 0:
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{
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if(ui->widget_Form_Down->isHidden())
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{
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ui->widget_Form_Down->show();
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}
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else
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{
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ui->label_Form_Down_Plane->setStyleSheet("border-image:url(:/Form_Down/Source/Form_Down/F22.png)");
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if(engine_left == NULL)
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{
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engine_left = new Control_Engine(ui->widget_Form_Down,LEFT);
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engine_left->setGeometry(17,20,120,80);
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}
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if(engine_right == NULL)
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{
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engine_right = new Control_Engine(ui->widget_Form_Down,RIGHT);
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engine_right->setGeometry(180,20,120,80);
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}
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// QPalette palette;
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// palette.setColor(QPalette::WindowText,Qt::red);
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// ui->label_ENG->setPalette(palette);
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// QFont font;
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// font.setPointSize(12);
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// ui->label_ENG->setFont(font);
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// ui->label_ENG->setText("TEST");
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// ui->label_ENG->setAlignment(Qt::AlignCenter);
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if(percent1 == NULL)
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{
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percent1 = new Control_Percent(ui->widget_Form_Down);
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percent1->setGeometry(30,170,50,26);
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percent1->set_Percent(50); //test
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}
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if(percent2 == NULL)
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{
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percent2 = new Control_Percent(ui->widget_Form_Down);
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percent2->setGeometry(245,170,50,26);
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percent2->set_Percent(50); //test
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}
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if(percent3 == NULL)
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{
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percent3 = new Control_Percent(ui->widget_Form_Down);
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percent3->setGeometry(30,240,50,26);
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percent3->set_Percent(50); //test
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}
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if(percent4 == NULL)
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{
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percent4 = new Control_Percent(ui->widget_Form_Down);
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percent4->setGeometry(245,240,50,26);
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percent4->set_Percent(50); //test
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}
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}
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-
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break;
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}
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case 1:
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ui->widget_Form_Down->hide();
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break;
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default:
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break;
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}
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}
绘制其它部分代码
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void MainWidget::draw_Gun()
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{
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QPainter painter1(ui->label_GUN);
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painter1.setPen(QPen(QColor(WHITE),1.5));
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QRect rect1(1,3,76,22);
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painter1.drawRect(rect1);
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QPainter painter2(ui->label_GUN);
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painter2.setPen(QPen(QColor(GREEN),1.5));
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QString str = "GUN "+QString::number(num_GUN,10);
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QFont font("宋体",12,QFont::Bold);
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painter2.setFont(font);
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painter2.drawText(rect1,Qt::AlignCenter,str);
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}
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void MainWidget::draw_Information()
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{
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QPainter painter1(ui->label_Information);
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painter1.setPen(QPen(QColor(WHITE),1.5));
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QRect rect1(1,3,118,45);
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QRect rect2(1,3,118,24);
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QRect rect3(1,24,118,24);
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painter1.drawRect(rect1);
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QPainter painter2(ui->label_Information);
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painter2.setPen(QPen(QColor(WHITE),1.5));
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QString str = "BAY DOORS";
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QFont font("宋体",12,QFont::Bold);
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painter2.setFont(font);
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painter2.drawText(rect2,Qt::AlignCenter,str);
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QPainter painter3(ui->label_Information);
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if(BAY_DOORS == "CLOSED")
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{
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painter3.setPen(QPen(QColor(GREEN),1.5));
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}
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else
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{
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painter3.setPen(QPen(QColor(RED),1.5));
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}
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QFont font1("宋体",12,QFont::Bold);
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painter3.setFont(font1);
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painter3.drawText(rect3,Qt::AlignCenter,BAY_DOORS);
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}
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void MainWidget::draw_Bay()
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{
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QPainter painter(ui->label_BAY);
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QRect rect1(0,0,30,16);
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if(BAY_DOORS == "CLOSED")
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{
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painter.setPen(QPen(QColor(GREEN),1.5));
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}
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else
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{
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painter.setPen(QPen(QColor(RED),1.5));
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}
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QString str = "BAY";
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QFont font("宋体",12,QFont::Bold);
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painter.setFont(font);
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painter.drawText(rect1,Qt::AlignCenter,str);
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}
文章来源: dreamlife.blog.csdn.net，作者：DreamLife.，版权归原作者所有，如需转载，请联系作者。
原文链接：dreamlife.blog.csdn.net/article/details/51249045
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