computer-vision计算机视图算法opencv相关

#include "mainwindow.h" #include "ui_mainwindow.h" #include <QDebug> #define PLUGINS_SUBFOLDER "/cvplugins/" //#define PLUGINS_SUBFOLDER "/filter_plugins/" #define LANGUAGES_SUBFOLDER "/languages/" #define THEMES_SUBFOLDER "/themes/" #define FILE_ON_DISK_DYNAMIC_PROPERTY "absolute_file_path" MainWindow::MainWindow(QWidget *parent) : QMainWindow(parent), ui(new Ui::MainWindow) { ui->setupUi(this); loadSettings(); // First thing's first, load settings //加载插件菜单 populatePluginsMenu(); //加载多语言菜单 populateLanguagesMenu(); //加载主题菜单 populateThemesMenu(); ui->graphicsView->setScene(&scene); scene.addItem(&originalPixmap); scene.addItem(&processedPixmap); ui->graphicsView->setViewportUpdateMode(QGraphicsView::FullViewportUpdate); } MainWindow::~MainWindow() { delete currentPlugin; delete ui; } void MainWindow::loadSettings() { QSettings settings("Packt", "Computer_Vision", this); currentThemeFile = settings.value("currentThemeFile", "").toString(); currentLanguageFile = settings.value("currentLanguageFile", "").toString(); currentPluginFile = settings.value("currentPluginFile", "").toString(); } void MainWindow::saveSettings() { QSettings settings("Packt", "Computer_Vision", this); settings.setValue("currentThemeFile", currentThemeFile); settings.setValue("currentLanguageFile", currentLanguageFile); settings.setValue("currentPluginFile", currentPluginFile); } void MainWindow::changeEvent(QEvent *event) { if(event->type() == QEvent::LanguageChange) { ui->retranslateUi(this); } else { QMainWindow::changeEvent(event); } } void MainWindow::closeEvent(QCloseEvent *event) { int result = QMessageBox::warning(this, tr("Exit"), tr("Are you sure you want to exit?"), QMessageBox::Yes, QMessageBox::No); if(result == QMessageBox::Yes) { saveSettings(); event->accept(); } else { event->ignore(); } } void MainWindow::populatePluginsMenu() { // Load all plugins and populate the menus QDir pluginsDir(qApp->applicationDirPath() + PLUGINS_SUBFOLDER); //QDir pluginsDir(qApp->applicationDirPath()); QFileInfoList pluginFiles = pluginsDir.entryInfoList(QDir::NoDotAndDotDot | QDir::Files, QDir::Name); qDebug() << "MainWindow::populatePluginsMenu=====================pluginFiles.size========" << pluginFiles.size(); foreach(QFileInfo pluginFile, pluginFiles) { if(QLibrary::isLibrary(pluginFile.absoluteFilePath())) { QPluginLoader pluginLoader(pluginFile.absoluteFilePath(), this); if(CvPluginInterface *plugin = dynamic_cast<CvPluginInterface*>(pluginLoader.instance())) { QAction *pluginAction = ui->menu_Plugins->addAction(plugin->title()); pluginAction->setProperty(FILE_ON_DISK_DYNAMIC_PROPERTY, pluginFile.absoluteFilePath()); connect(pluginAction, SIGNAL(triggered(bool)), this, SLOT(onPluginActionTriggered(bool))); if(currentPluginFile == pluginFile.absoluteFilePath()) { pluginAction->trigger(); } } else { QMessageBox::warning(this, tr("Warning"), QString(tr("Make sure %1 is a correct plugin for this application<br>" "and it's not in use by some other application!")).arg(pluginFile.fileName())); } } else { QMessageBox::warning(this, tr("Warning"), QString(tr("Make sure only plugins exist in %1 folder.<br>" "%2 is not a plugin.")) .arg(PLUGINS_SUBFOLDER) .arg(pluginFile.fileName())); } } if(ui->menu_Plugins->actions().count() <= 0) { QMessageBox::critical(this, tr("No Plugins"), QString(tr("This application cannot work without plugins!" "<br>Make sure that %1 folder exists " "in the same folder as the application<br>and that " "there are some filter plugins inside it")).arg(PLUGINS_SUBFOLDER)); this->setEnabled(false); } } void MainWindow::populateLanguagesMenu() { QMenu *languagesMenu = new QMenu(this); // Add default (english) language QAction *defaultLanguageAction = languagesMenu->addAction("English - US"); defaultLanguageAction->setProperty(FILE_ON_DISK_DYNAMIC_PROPERTY, ""); connect(defaultLanguageAction, SIGNAL(triggered(bool)), this, SLOT(onLanguageActionTriggered(bool))); // Load all languages and populate the menus QDir languagesDir(qApp->applicationDirPath() + LANGUAGES_SUBFOLDER); QFileInfoList languageFiles = languagesDir.entryInfoList(QStringList() << "*.qm", QDir::NoDotAndDotDot | QDir::Files, QDir::Name); foreach(QFileInfo languageFile, languageFiles) { QAction *languageAction = languagesMenu->addAction(languageFile.baseName()); languageAction->setProperty(FILE_ON_DISK_DYNAMIC_PROPERTY, languageFile.absoluteFilePath()); connect(languageAction, SIGNAL(triggered(bool)), this, SLOT(onLanguageActionTriggered(bool))); if(currentLanguageFile == languageFile.absoluteFilePath()) { languageAction->trigger(); } } ui->actionLanguage->setMenu(languagesMenu); } void MainWindow::populateThemesMenu() { QMenu *themesMenu = new QMenu(this); // Add default (native) theme QAction *defaultThemeAction = themesMenu->addAction("Default"); defaultThemeAction->setProperty(FILE_ON_DISK_DYNAMIC_PROPERTY, ""); connect(defaultThemeAction, SIGNAL(triggered(bool)), this, SLOT(onThemeActionTriggered(bool))); // Load all themes and populate the menus QDir themesDir(qApp->applicationDirPath() + THEMES_SUBFOLDER); QFileInfoList themeFiles = themesDir.entryInfoList(QStringList() << "*.thm", QDir::NoDotAndDotDot | QDir::Files, QDir::Name); foreach(QFileInfo themeFile, themeFiles) { QAction *themeAction = themesMenu->addAction(themeFile.baseName()); themeAction->setProperty(FILE_ON_DISK_DYNAMIC_PROPERTY, themeFile.absoluteFilePath()); connect(themeAction, SIGNAL(triggered(bool)), this, SLOT(onThemeActionTriggered(bool))); if(currentThemeFile == themeFile.absoluteFilePath()) { themeAction->trigger(); } } ui->actionTheme->setMenu(themesMenu); } void MainWindow::on_actionAboutQt_triggered() { qApp->aboutQt(); } void MainWindow::on_actionExit_triggered() { close(); } //加载插件 void MainWindow::onPluginActionTriggered(bool) { if(!currentPlugin.isNull()) { delete currentPlugin; delete currentPluginGui; } qDebug() << "MainWindow::onPluginActionTriggered====================currentPlugin========" << currentPlugin.isNull(); currentPluginFile = QObject::sender()->property(FILE_ON_DISK_DYNAMIC_PROPERTY).toString(); currentPlugin = new QPluginLoader(currentPluginFile, this); currentPluginGui = new QWidget(this); ui->pluginLayout->addWidget(currentPluginGui); CvPluginInterface *currentPluginInstance = dynamic_cast<CvPluginInterface*>(currentPlugin->instance()); if(currentPluginInstance) { currentPluginInstance->setupUi(currentPluginGui); connect(currentPlugin->instance(), SIGNAL(updateNeeded()), this, SLOT(onCurrentPluginUpdateNeeded())); connect(currentPlugin->instance(), SIGNAL(infoMessage(QString)), this, SLOT(onCurrentPluginInfoMessage(QString)));