基于Qt的虚拟示波器软件.zip

#include "mainwindow.h" #include "ui_mainwindow.h" MainWindow::MainWindow(QWidget *parent) : QMainWindow(parent), ui(new Ui::MainWindow) { ui->setupUi(this); // 初始化窗口指针 aboutWindow = NULL; connectWindow = NULL; ddsWindow = NULL; // 主界面模式设置为运行模式 Mode = RUN; // 实例化USB类 g_USBDevice = new usb(); // 主界面接收线程发送的信号 connect(&usbThread, SIGNAL(signal_ReviceFinish(int)), this, SLOT(updateDisplay(int)) ); // 初始化UI initUI(); // 参数初始化 ch1_VoltageOffset = 0; ch1_VoltageRange = 0; ch1_CouplingMode = 0; ch2_VoltageOffset = 0; ch2_VoltageRange = 0; ch2_CouplingMode = 0; triggerChannel = 0; triggerEdge = 0; triggerLevel = 0; sampleRate = 100000000; // 通道设置信号处理 connect(ch1_settings_widget, SIGNAL(voltageOffsetChanged(int, int)), this, SLOT(voltageOffsetChangedHandler(int, int)) ); connect(ch1_settings_widget, SIGNAL(voltageRangeChanged(int, int)) , this, SLOT(voltageRangeChangedHandler(int, int)) ); connect(ch1_settings_widget, SIGNAL(couplingModeChanged(int, int)) , this, SLOT(couplingModeChangedHandler(int, int)) ); connect(ch2_settings_widget, SIGNAL(voltageOffsetChanged(int, int)), this, SLOT(voltageOffsetChangedHandler(int, int)) ); connect(ch2_settings_widget, SIGNAL(voltageRangeChanged(int, int)) , this, SLOT(voltageRangeChangedHandler(int, int)) ); connect(ch2_settings_widget, SIGNAL(couplingModeChanged(int, int)) , this, SLOT(couplingModeChangedHandler(int, int)) ); // 采样率设置信号处理 connect(sampleRateSettingWidget, SIGNAL(sampleRateChanged(int)), this, SLOT(sampleRateChangedHandler(int)) ); // 触发设置信号处理 connect(triggerWidget, SIGNAL(signal_channelChanged(int)), this, SLOT(triggerChannelChangedHandler(int)) ); connect(triggerWidget, SIGNAL(signal_edgeChanged(int)) , this, SLOT(triggerEdgeChangedHandler(int)) ); connect(triggerWidget, SIGNAL(signal_levelChanged(int)) , this, SLOT(triggerLevelChangedHandler(int)) ); // 启动线程 usbThread.start(); } MainWindow::~MainWindow() { if (g_USBDevice) { // 关闭USB g_USBDevice->unconnectDevice(); delete g_USBDevice; g_USBDevice = NULL; } if (aboutWindow) { delete aboutWindow; aboutWindow = NULL; } if (connectWindow) { delete connectWindow; connectWindow = NULL; } if (ddsWindow) { delete ddsWindow; ddsWindow = NULL; } delete ui; usbThread.stop(); } // 窗口重定义大小 void MainWindow::resizeEvent(QResizeEvent *) { } // 界面绘制事件 void MainWindow::paintEvent(QPaintEvent *) { QPainterPath path; path.setFillRule(Qt::WindingFill); path.addRect(0, 0, this->width(), this->height()); QPainter painter(this); painter.fillPath(path, QBrush(Qt::white)); path.setFillRule(Qt::WindingFill); path.addRect(0, 0, this->width()-1, this->height()-1); painter.setPen("#0063B1"); painter.drawPath(path); } // 初始化界面 void MainWindow::initUI() { QString titleText = MAIN_WINDOW_TITLE; if (ENABLE_SIMULATION_MODE) titleText += tr(" - Simulation Mode"); this->setMinimumSize(DEFAULT_MAIN_WINDOW_WIDTH, DEFAULT_MAIN_WINDOW_HEIGHT); this->setWindowFlags(Qt::FramelessWindowHint | Qt::WindowMinimizeButtonHint | Qt::WindowSystemMenuHint); // this->setWindowIcon(QIcon(":/img/etc/logo.png")); this->setWindowIcon(QIcon(":/img/etc/icon.png")); this->setWindowTitle(titleText); this->setWindowOpacity(1); //窗体透明度设置 // 标题栏 title_bar_widget = new TitleBarWidget(this, titleText, DEFAULT_TITLE_BAR_HEIGHT, true); title_bar_widget->initConnect(); connect(title_bar_widget, SIGNAL(closeWindow()), this, SLOT(closeApp())); // 主界面的下拉菜单 mainMenu = new MainWindowMenu(this); mainMenu->intConnect(); // 状态栏 status_bar_widget = new StatusBarWidget(this, DEFAULT_STATUS_BAR_HEIGHT); status_bar_widget->showMessage("未连接设备！"); status_bar_widget->isEnabledShowTime(true); // 波形显示区域 oscillograph_widget = new OscillographWidget(this, 2); oscillograph_widget->setMinimumSize(this->width()-160-5*3, this->height()-title_bar_widget->height()-status_bar_widget->height() - 5*2); //连接信号槽函数 connect(this, SIGNAL(signal_ModeChanged(int)), oscillograph_widget, SLOT(updateMode(int))); emit signal_ModeChanged(Mode); // CH1、CH2控制面板 ch1_settings_widget = new ChannelSettingsWidget(this, 0, "CH1", Qt::yellow); ch2_settings_widget = new ChannelSettingsWidget(this, 1, "CH2", QColor(0x48, 0x76, 0xFF)); // 设置颜色关联的槽函数 connect(ch1_settings_widget, SIGNAL(markColoChange(int, QColor)), oscillograph_widget, SLOT(setChannelMarkColor(int, QColor)) ); connect(ch2_settings_widget, SIGNAL(markColoChange(int, QColor)), oscillograph_widget, SLOT(setChannelMarkColor(int, QColor)) ); // 直接调用槽函数设置波形颜色 oscillograph_widget->setChannelMarkColor(0, Qt::yellow); oscillograph_widget->setChannelMarkColor(1, QColor(0x48, 0x76, 0xFF)); // 采样速率设置 sampleRateSettingWidget = new SampleRateSettingWidget(this); // 触发设置 triggerWidget = new TriggerWidget(this); // 按键 runButton = new SystemButton(this, "运行/暂停"); // singleButton = new SystemButton(this, "单次采集"); // autoButton = new SystemButton(this, "自动设置"); defalutButton = new SystemButton(this, "默认设置"); // saveDataDeviceButton = new SystemButton(this, "保存数据"); screenshotButton = new SystemButton(this, "截图"); // 设置按键默认状态 disableButton(); // 设置按键事件 connect(runButton, SIGNAL(clicked()), this, SLOT( runButtonHandler()) ); // connect(singleButton, SIGNAL(clicked()), this, SLOT( singleButtonHandler()) ); // connect(autoButton, SIGNAL(clicked()), this, SLOT( autoButtonHandler()) ); connect(defalutButton, SIGNAL(clicked()), this, SLOT( defalutButtonHandler()) ); // connect(saveDataDeviceButton, SIGNAL(clicked()), this, SLOT( saveDataDeviceButtonHandler()) ); connect(screenshotButton, SIGNAL(clicked()), this, SLOT( screenshotButtonHandler()) ); connect(ch1_settings_widget, SIGNAL(switchStateChanged(int, bool)), oscillograph_widget, SLOT(setChannelDisplay(int, bool))); connect(ch2_settings_widget, SIGNAL(switchStateChanged(int, bool)), oscillograph_widget, SLOT(setChannelDisplay(int, bool))); // 初始化布局 initLayout(); } // 初始化布局 void MainWindow::initLayout() { QVBoxLayout *mainLayout = new QVBoxLayout(); QHBoxLayout *hLayout1 = new QHBoxLayout(); QVBoxLayout *vLayout1 = new QVBoxLayout(); QGridLayout *gridLayout = new QGridLayout(); QSpacerItem *vSpacer1 = new QSpacerItem(20, 20, QSizePolicy::Minimum, QSizePolicy::Expanding); // QSpacerItem *vSpacer2 = new QSpacerItem(20, 20, QSizePolicy::Minimum, QSizePolicy::Expanding); // gridLayout->addWidget(runButton, 0, 0); // gridLayout->addWidget(singleButton, 0, 1); // gridLayout->addWidget(autoButton, 1, 0); // gridLayout->addWidget(defalutButton, 1, 1); // gridLayout->addWidget(saveDataDeviceButton, 2, 0); // gridLayout->addWidget(screenshotButton, 2, 1); // gridLayout->setSpacing(5); // gridLayout->setContentsMargins(0, 0, 0, 0); runButton->setFixedSize(160, 32); defalutButton->