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/****************************************************************************
**
** Copyright (C) 2004-$THISYEAR$ Trolltech AS. All rights reserved.
**
** This file is part of the $MODULE$ of the Qt Toolkit.
**
** $LICENSE$
**
** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
**
****************************************************************************/
#include <QtGui>
#include "mainwindow.h"
#include "ui_other.h"
#include "ui_general.h"
#include <qsettings.h>
#include <qconfigdialog.h>
MainWindow::MainWindow()
{
textEdit = new QTextEdit;
setCentralWidget(textEdit);
createActions();
createMenus();
createToolBars();
createStatusBar();
readSettings();
connect(textEdit->document(), SIGNAL(contentsChanged()),
this, SLOT(documentWasModified()));
setCurrentFile("");
showSettings();
}
void MainWindow::closeEvent(QCloseEvent *event)
{
if (maybeSave()) {
writeSettings();
event->accept();
} else {
event->ignore();
}
}
void MainWindow::newFile()
{
if (maybeSave()) {
textEdit->clear();
setCurrentFile("");
}
}
void MainWindow::open()
{
if (maybeSave()) {
QString fileName = QFileDialog::getOpenFileName(this);
if (!fileName.isEmpty())
loadFile(fileName);
}
}
bool MainWindow::save()
{
if (curFile.isEmpty()) {
return saveAs();
} else {
return saveFile(curFile);
}
}
bool MainWindow::saveAs()
{
QString fileName = QFileDialog::getSaveFileName(this);
if (fileName.isEmpty())
return false;
return saveFile(fileName);
}
void MainWindow::about()
{
QMessageBox::about(this, tr("About Application"),
tr("The <b>Application</b> example demonstrates how to "
"write modern GUI applications using Qt, with a menu bar, "
"toolbars, and a status bar."));
}
void MainWindow::documentWasModified()
{
setWindowModified(true);
}
void MainWindow::createActions()
{
newAct = new QAction(QIcon(":/images/new.png"), tr("&New"), this);
newAct->setShortcut(tr("Ctrl+N"));
newAct->setStatusTip(tr("Create a new file"));
connect(newAct, SIGNAL(triggered()), this, SLOT(newFile()));
openAct = new QAction(QIcon(":/images/open.png"), tr("&Open..."), this);
openAct->setShortcut(tr("Ctrl+O"));
openAct->setStatusTip(tr("Open an existing file"));
connect(openAct, SIGNAL(triggered()), this, SLOT(open()));
saveAct = new QAction(QIcon(":/images/save.png"), tr("&Save"), this);
saveAct->setShortcut(tr("Ctrl+S"));
saveAct->setStatusTip(tr("Save the document to disk"));
connect(saveAct, SIGNAL(triggered()), this, SLOT(save()));
saveAsAct = new QAction(tr("Save &As..."), this);
saveAsAct->setStatusTip(tr("Save the document under a new name"));
connect(saveAsAct, SIGNAL(triggered()), this, SLOT(saveAs()));
settingsAct = new QAction(tr("Settings..."), this);
settingsAct->setShortcut(tr("Ctrl+;"));
settingsAct->setStatusTip(tr("Configure the application"));
connect(settingsAct, SIGNAL(triggered()), this, SLOT(showSettings()));
exitAct = new QAction(tr("E&xit"), this);
exitAct->setShortcut(tr("Ctrl+Q"));
exitAct->setStatusTip(tr("Exit the application"));
connect(exitAct, SIGNAL(triggered()), this, SLOT(close()));
cutAct = new QAction(QIcon(":/images/cut.png"), tr("Cu&t"), this);
cutAct->setShortcut(tr("Ctrl+X"));
cutAct->setStatusTip(tr("Cut the current selection's contents to the "
"clipboard"));
connect(cutAct, SIGNAL(triggered()), textEdit, SLOT(cut()));
copyAct = new QAction(QIcon(":/images/copy.png"), tr("&Copy"), this);
copyAct->setShortcut(tr("Ctrl+C"));
copyAct->setStatusTip(tr("Copy the current selection's contents to the "
"clipboard"));
connect(copyAct, SIGNAL(triggered()), textEdit, SLOT(copy()));
pasteAct = new QAction(QIcon(":/images/paste.png"), tr("&Paste"), this);
pasteAct->setShortcut(tr("Ctrl+V"));
pasteAct->setStatusTip(tr("Paste the clipboard's contents into the current "
"selection"));
connect(pasteAct, SIGNAL(triggered()), textEdit, SLOT(paste()));
aboutAct = new QAction(tr("&About"), this);
aboutAct->setStatusTip(tr("Show the application's About box"));
connect(aboutAct, SIGNAL(triggered()), this, SLOT(about()));
aboutQtAct = new QAction(tr("About &Qt"), this);
aboutQtAct->setStatusTip(tr("Show the Qt library's About box"));
connect(aboutQtAct, SIGNAL(triggered()), qApp, SLOT(aboutQt()));
cutAct->setEnabled(false);
copyAct->setEnabled(false);
connect(textEdit, SIGNAL(copyAvailable(bool)),
cutAct, SLOT(setEnabled(bool)));
connect(textEdit, SIGNAL(copyAvailable(bool)),
copyAct, SLOT(setEnabled(bool)));
}
void MainWindow::createMenus()
{
fileMenu = menuBar()->addMenu(tr("&File"));
fileMenu->addAction(newAct);
fileMenu->addAction(openAct);
fileMenu->addAction(saveAct);
fileMenu->addAction(saveAsAct);
fileMenu->addSeparator();
fileMenu->addAction(settingsAct);
fileMenu->addSeparator();
fileMenu->addAction(exitAct);
editMenu = menuBar()->addMenu(tr("&Edit"));
editMenu->addAction(cutAct);
editMenu->addAction(copyAct);
editMenu->addAction(pasteAct);
menuBar()->addSeparator();
helpMenu = menuBar()->addMenu(tr("&Help"));
helpMenu->addAction(aboutAct);
helpMenu->addAction(aboutQtAct);
}
void MainWindow::createToolBars()
{
fileToolBar = addToolBar(tr("File"));
fileToolBar->addAction(newAct);
fileToolBar->addAction(openAct);
fileToolBar->addAction(saveAct);
editToolBar = addToolBar(tr("Edit"));
editToolBar->addAction(cutAct);
editToolBar->addAction(copyAct);
editToolBar->addAction(pasteAct);
}
void MainWindow::createStatusBar()
{
statusBar()->showMessage(tr("Ready"));
}
void MainWindow::readSettings()
{
QSettings settings;
QPoint pos = settings.value("pos", QPoint(200, 200)).toPoint();
QSize size = settings.value("size", QSize(400, 400)).toSize();
resize(size);
move(pos);
settings.beginGroup(QString("General"));
helpButton = settings.value("helpbutton", true).toBool();
cancelButton = settings.value("cancelbutton", true).toBool();
applyButton = settings.value("applybutton", true).toBool();
okButton = settings.value("okbutton", true).toBool();
defaultButton = settings.value("defaultsbutton", true).toBool();
modal = settings.value("modalTrue", false).toBool();
type = (settings.value("type", 1)).toInt()+1;
settings.endGroup();
}
void MainWindow::writeSettings()
{
QSettings settings;
settings.setValue("pos", pos());
settings.setValue("size", size());
}
bool MainWindow::maybeSave()
{
if (textEdit->document()->isModified()) {
int ret = QMessageBox::warning(this, tr("Application"),
tr("The document has been modified.\n"
"Do you want to save your changes?"),
QMessageBox::Yes | QMessageBox::Default,
QMessageBox::No,
QMessageBox::Cancel | QMessageBox::Escape);
if (ret == QMessageBox::Yes)
return save();
else if (ret == QMessageBox::Cancel)
return false;
}
return true;
}
void MainWindow::loadFile(const QString &fileName)
{
QFile file(fileName);
if (!file.open(QFile::ReadOnly | QFile::Text)) {
QMessageBox::warning(this, tr("Application"),
tr("Cannot read file %1:\n%2.")
.arg(fileName)
.arg(file.errorString()));
return;
}
QTextStream in(&file);
QApplication::setOverrideCursor(Qt::WaitCursor);
textEdit->setPlainText(in.readAll());
QApplication::restoreOverrideCursor();
setCurrentFile(fileName);
statusBar()->showMessage(tr("File loaded"), 2000);
}
bool MainWindow::saveFile(const QString &fileName)
{
QFile file(fileName);
if (!file.open(QFile::WriteOnly | QFile::Text)) {
QMessageBox::warning(this, tr("Application"),
tr("Cannot write file %1:\n%2.")
.arg(fileName)
.arg(file.errorString()));
return false;
}
QTextStream out(&file);
QApplication::setOverrideCursor(Qt::WaitCursor);
out << textEdit->toPlainText();
QApplication::restoreOverrideCursor();
setCurrentFile(fileName);
statusBar()->showMessage(tr("File saved"), 2000);
return true;
}
void MainWindow::setCurrentFile(const QString &fileName)
{
curFile = fileName;
textEdit->document()->setModified(false);
setWindowModified(false);
QString shownName;
if (curFile.isEmpty())
shownName = "untitled.txt";
else
shownName = strippedName(curFile);
setWindowTitle(tr("%1[*] - %2").arg(shownName).arg(tr("Application")));
}
QString MainWindow::strippedName(const QString &fullFileName)
{
return QFileInfo(fullFileName).fileName();
}
void MainWindow::showSettings()
{
// Check if there is already a dialog and if so bring it to the foreground.
if (QConfigDialog::showDialog("settings"))
return;
int dialogButtons = 0;
if (helpButton) dialogButtons |= (int)QConfigDialog::Help;
if (defaultButton) dialogButtons |= (int)QConfigDialog::Default;
if (okButton) dialogButtons |= (int)QConfigDialog::Ok;
if (applyButton) dialogButtons |= (int)QConfigDialog::Apply;
if (cancelButton) dialogButtons |= (int)QConfigDialog::Cancel;
QConfigDialog::Button buttons = (QConfigDialog::Button)dialogButtons;
// Create a new dialog with the same name as the above checking code.
QConfigDialog *dialog = new QConfigDialog(this);
dialog->setObjectName("settings");
dialog->setButtons(buttons);
// (QConfigDialog::DialogType)type, settings, buttons, modal);
//dialog->setNamePrefix("kcfg_");
// Add the general page. Store the settings in the General group and
// use the icon package_settings.
QWidget *general = new QWidget(0);
general->setObjectName("General");
Ui::General ui;
ui.setupUi(general);
dialog->addPage(general, "General", QIcon("general.png"));
//if (type == QConfigDialog::Tabbed || type == QConfigDialog::IconList) {
{
QWidget *other = new QWidget(0);
other->setObjectName("Other");
Ui::Other ui;
ui.setupUi(other);
dialog->addPage(other, "Other", QIcon("other.png"));
}
// When the user clicks OK or Apply we want to update our settings.
connect(dialog, SIGNAL(settingsChanged()), this, SLOT(readSettings()));
// Display the dialog.
dialog->show();
}
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