, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
** $QT_END_LICENSE$
**
****************************************************************************/
#include <QtGui>
#include "mainwindow.h"
//! [0]
MainWindow::MainWindow(QWidget *parent)
: QMainWindow(parent)
{
setupFileMenu();
setupHelpMenu();
setupEditor();
setCentralWidget(editor);
setWindowTitle(tr("Syntax Highlighter"));
}
//! [0]
void MainWindow::about()
{
QMessageBox::about(this, tr("About Syntax Highlighter"),
tr("<p>The <b>Syntax Highlighter</b> example shows how " \
"to perform simple syntax highlighting by subclassing " \
"the QSyntaxHighlighter class and describing " \
"highlighting rules using regular expressions.</p>"));
}
void MainWindow::newFile()
{
editor->clear();
}
void MainWindow::openFile(const QString &path)
{
QString fileName = path;
if (fileName.isNull())
fileName = QFileDialog::getOpenFileName(this,
tr("Open File"), "", "C++ Files (*.cpp *.h)");
if (!fileName.isEmpty()) {
QFile file(fileName);
if (file.open(QFile::ReadOnly | QFile::Text))
editor->setPlainText(file.readAll());
}
}
//! [1]
void MainWindow::setupEditor()
{
QFont font;
font.setFamily("Courier");
font.setFixedPitch(true);
font.setPointSize(10);
editor = new QTextEdit;
editor->setFont(font);
highlighter = new Highlighter(editor->document());
QFile file("mainwindow.h");
if (file.open(QFile::ReadOnly | QFile::Text))
editor->setPlainText(file.readAll());
}
//! [1]
void MainWindow::setupFileMenu()
{
QMenu *fileMenu = new QMenu(tr("&File"), this);
menuBar()->addMenu(fileMenu);
fileMenu->addAction(tr("&New"), this, SLOT(newFile()),
QKeySequence::New);
fileMenu->addAction(tr("&Open..."), this, SLOT(openFile()),
QKeySequence::Open);
fileMenu->addAction(tr("E&xit"), qApp, SLOT(quit()),
QKeySequence::Quit);
}
void MainWindow::setupHelpMenu()
{
QMenu *helpMenu = new QMenu(tr("&Help"), this);
menuBar()->addMenu(helpMenu);
helpMenu->addAction(tr("&About"), this, SLOT(about()));
helpMenu->addAction(tr("About &Qt"), qApp, SLOT(aboutQt()));
}