mainwindow.cpp Example File | Qt 4.8 (original) (raw)

help/simpletextviewer/mainwindow.cpp

#include <QtCore/QLibraryInfo> #include <QtGui/QApplication> #include <QtGui/QAction> #include <QtGui/QMenu> #include <QtGui/QMenuBar> #include <QtGui/QMessageBox>

#include "mainwindow.h" #include "findfiledialog.h" #include "assistant.h" #include "textedit.h"

MainWindow::MainWindow() { assistant = new Assistant;

textViewer = new TextEdit;
textViewer->setContents([QLibraryInfo](qlibraryinfo.html)::location([QLibraryInfo](qlibraryinfo.html)::ExamplesPath)
        + QLatin1String("/help/simpletextviewer/documentation/intro.html"));
setCentralWidget(textViewer);

createActions();
createMenus();

setWindowTitle(tr("Simple Text Viewer"));
resize(750, 400);

}

void MainWindow::closeEvent(QCloseEvent *) { delete assistant; }

void MainWindow::about() { QMessageBox::about(this, tr("About Simple Text Viewer"), tr("This example demonstrates how to use\n" "Qt Assistant as help system for your\n" "own application.")); }

void MainWindow::showDocumentation() { assistant->showDocumentation("index.html"); }

void MainWindow::open() { FindFileDialog dialog(textViewer, assistant); dialog.exec(); }

void MainWindow::createActions() { assistantAct = new QAction(tr("Help Contents"), this); assistantAct->setShortcut(QKeySequence::HelpContents); connect(assistantAct, SIGNAL(triggered()), this, SLOT(showDocumentation()));

openAct = new [QAction](qaction.html)(tr("&Open..."), this);
openAct->setShortcut([QKeySequence](qkeysequence.html)::Open);
connect(openAct, SIGNAL(triggered()), this, SLOT(open()));

clearAct = new [QAction](qaction.html)(tr("&Clear"), this);
clearAct->setShortcut(tr("Ctrl+C"));
connect(clearAct, SIGNAL(triggered()), textViewer, SLOT(clear()));

exitAct = new [QAction](qaction.html)(tr("E&xit"), this);
exitAct->setShortcuts([QKeySequence](qkeysequence.html)::Quit);
connect(exitAct, SIGNAL(triggered()), this, SLOT(close()));

aboutAct = new [QAction](qaction.html)(tr("&About"), this);
connect(aboutAct, SIGNAL(triggered()), this, SLOT(about()));

aboutQtAct = new [QAction](qaction.html)(tr("About &Qt"), this);
connect(aboutQtAct, SIGNAL(triggered()), qApp, SLOT(aboutQt()));

}

void MainWindow::createMenus() { fileMenu = new QMenu(tr("&File"), this); fileMenu->addAction(openAct); fileMenu->addAction(clearAct); fileMenu->addSeparator(); fileMenu->addAction(exitAct);

helpMenu = new [QMenu](qmenu.html)(tr("&Help"), this);
helpMenu->addAction(assistantAct);
helpMenu->addSeparator();
helpMenu->addAction(aboutAct);
helpMenu->addAction(aboutQtAct);

menuBar()->addMenu(fileMenu);
menuBar()->addMenu(helpMenu);

}

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