#include <qaction.h>#include <qapplication.h>#include <qlabel.h>#include <qmenubar.h>#include <qmessagebox.h>#include <qstatusbar.h>#include <qworkspace.h>#include "editor.h"#include "mainwindow.h"MainWindow::MainWindow(QWidget *parent, const char *name)    : QMainWindow(parent, name){    workspace = new QWorkspace(this);    setCentralWidget(workspace);    connect(workspace, SIGNAL(windowActivated(QWidget *)),            this, SLOT(updateMenus()));    connect(workspace, SIGNAL(windowActivated(QWidget *)),            this, SLOT(updateModIndicator()));    createActions();    createMenus();    createToolBars();    createStatusBar();    setCaption(tr("Editor"));    setIcon(QPixmap::fromMimeSource("icon.png"));}void MainWindow::createActions(){    newAct = new QAction(tr("&New"), tr("Ctrl+N"), this);    newAct->setIconSet(QPixmap::fromMimeSource("new.png"));    newAct->setStatusTip(tr("Create a new file"));    connect(newAct, SIGNAL(activated()), this, SLOT(newFile()));    openAct = new QAction(tr("&Open..."), tr("Ctrl+O"), this);    openAct->setIconSet(QPixmap::fromMimeSource("open.png"));    openAct->setStatusTip(tr("Open an existing file"));    connect(openAct, SIGNAL(activated()), this, SLOT(open()));    saveAct = new QAction(tr("&Save"), tr("Ctrl+S"), this);    saveAct->setIconSet(QPixmap::fromMimeSource("save.png"));    saveAct->setStatusTip(tr("Save the file to disk"));    connect(saveAct, SIGNAL(activated()), this, SLOT(save()));    saveAsAct = new QAction(tr("Save &As..."), 0, this);    saveAsAct->setStatusTip(tr("Save the file under a new name"));    connect(saveAsAct, SIGNAL(activated()), this, SLOT(saveAs()));    exitAct = new QAction(tr("E&xit"), tr("Ctrl+Q"), this);    exitAct->setStatusTip(tr("Exit the application"));    connect(exitAct, SIGNAL(activated()), this, SLOT(close()));    cutAct = new QAction(tr("Cu&t"), tr("Ctrl+X"), this);    cutAct->setIconSet(QPixmap::fromMimeSource("cut.png"));    cutAct->setStatusTip(tr("Cut the current selection to the "                            "clipboard"));    connect(cutAct, SIGNAL(activated()), this, SLOT(cut()));    copyAct = new QAction(tr("&Copy"), tr("Ctrl+C"), this);    copyAct->setIconSet(QPixmap::fromMimeSource("copy.png"));    copyAct->setStatusTip(tr("Copy the current selection to the "                             "clipboard"));    connect(copyAct, SIGNAL(activated()), this, SLOT(copy()));    pasteAct = new QAction(tr("&Paste"), tr("Ctrl+V"), this);    pasteAct->setIconSet(QPixmap::fromMimeSource("paste.png"));    pasteAct->setStatusTip(tr("Paste the clipboard's contents at "                              "the cursor position"));    connect(pasteAct, SIGNAL(activated()), this, SLOT(paste()));    deleteAct = new QAction(tr("&Delete"), tr("Del"), this);    deleteAct->setIconSet(QPixmap::fromMimeSource("delete.png"));    deleteAct->setStatusTip(tr("Delete the current selection"));    connect(deleteAct, SIGNAL(activated()), this, SLOT(del()));    closeAct = new QAction(tr("Cl&ose"), tr("Ctrl+F4"), this);    closeAct->setStatusTip(tr("Close the active window"));    connect(closeAct, SIGNAL(activated()),            workspace, SLOT(closeActiveWindow()));    closeAllAct = new QAction(tr("Close &All"), 0, this);    closeAllAct->setStatusTip(tr("Close all the windows"));    connect(closeAllAct, SIGNAL(activated()),            workspace, SLOT(closeAllWindows()));    tileAct = new QAction(tr("&Tile"), 0, this);    tileAct->setStatusTip(tr("Tile the windows"));    connect(tileAct, SIGNAL(activated()), workspace, SLOT(tile()));    cascadeAct = new QAction(tr("&Cascade"), 0, this);    cascadeAct->setStatusTip(tr("Cascade the windows"));    connect(cascadeAct, SIGNAL(activated()),            workspace, SLOT(cascade()));    nextAct = new QAction(tr("Ne&xt"), tr("Ctrl+F6"), this);    nextAct->setStatusTip(tr("Move the focus to the next window"));    connect(nextAct, SIGNAL(activated()),            workspace, SLOT(activateNextWindow()));    previousAct = new QAction(tr("Pre&vious"),                              tr("Ctrl+Shift+F6"), this);    previousAct->setStatusTip(tr("Move the focus to the previous "                                 "window"));    connect(previousAct, SIGNAL(activated()),            workspace, SLOT(activatePreviousWindow()));    aboutAct = new QAction(tr("&About"), 0, this);    aboutAct->setStatusTip(tr("Show the application's About box"));    connect(aboutAct, SIGNAL(activated()), this, SLOT(about()));    aboutQtAct = new QAction(tr("About &Qt"), 0, this);    aboutQtAct->setStatusTip(tr("Show the Qt library's About box"));    connect(aboutQtAct, SIGNAL(activated()), qApp, SLOT(aboutQt()));}void MainWindow::createMenus(){    fileMenu = new QPopupMenu(this);    newAct->addTo(fileMenu);    openAct->addTo(fileMenu);    saveAct->addTo(fileMenu);    saveAsAct->addTo(fileMenu);    fileMenu->insertSeparator();    exitAct->addTo(fileMenu);    editMenu = new QPopupMenu(this);    cutAct->addTo(editMenu);    copyAct->addTo(editMenu);    pasteAct->addTo(editMenu);    deleteAct->addTo(editMenu);    windowsMenu = new QPopupMenu(this);    createWindowsMenu();    helpMenu = new QPopupMenu(this);    aboutAct->addTo(helpMenu);    aboutQtAct->addTo(helpMenu);    menuBar()->insertItem(tr("&File"), fileMenu);    menuBar()->insertItem(tr("&Edit"), editMenu);    menuBar()->insertItem(tr("&Windows"), windowsMenu);    menuBar()->insertSeparator();    menuBar()->insertItem(tr("&Help"), helpMenu);}void MainWindow::createToolBars(){    fileToolBar = new QToolBar(tr("File"), this);    newAct->addTo(fileToolBar);    openAct->addTo(fileToolBar);    saveAct->addTo(fileToolBar);    editToolBar = new QToolBar(tr("Edit"), this);    cutAct->addTo(editToolBar);    copyAct->addTo(editToolBar);    pasteAct->addTo(editToolBar);}void MainWindow::createStatusBar(){    readyLabel = new QLabel(tr(" Ready"), this);    modLabel = new QLabel(tr(" MOD "), this);    modLabel->setAlignment(AlignHCenter);    modLabel->setMinimumSize(modLabel->sizeHint());    modLabel->clear();    statusBar()->addWidget(readyLabel, 1);    statusBar()->addWidget(modLabel);}void MainWindow::newFile(){    Editor *editor = createEditor();    editor->newFile();    editor->show();}Editor *MainWindow::createEditor(){    Editor *editor = new Editor(workspace);    connect(editor, SIGNAL(copyAvailable(bool)),            this, SLOT(copyAvailable(bool)));    connect(editor, SIGNAL(modificationChanged(bool)),            this, SLOT(updateModIndicator()));    return editor;}void MainWindow::open(){    Editor *editor = createEditor();    if (editor->open())        editor->show();    else        editor->close();}void MainWindow::openFile(const QString &fileName){    Editor *editor = createEditor();    if (editor->openFile(fileName))        editor->show();    else        editor->close();}void MainWindow::save(){    if (activeEditor()) {        activeEditor()->save();        updateModIndicator();    }}Editor *MainWindow::activeEditor(){    return (Editor *)workspace->activeWindow();}void MainWindow::saveAs(){    if (activeEditor()) {        activeEditor()->saveAs();        updateModIndicator();    }}void MainWindow::cut(){    if (activeEditor())        activeEditor()->cut();}void MainWindow::copy(){    if (activeEditor())        activeEditor()->copy();}void MainWindow::paste(){    if (activeEditor())        activeEditor()->paste();}void MainWindow::del(){    if (activeEditor())        activeEditor()->del();}void MainWindow::about(){    QMessageBox::about(this, tr("About Editor"),            tr("<h2>Editor 1.0</h2>"               "<p>Copyright &copy; 2004 Software Inc."               "<p>Editor is a small application that demonstrates "               "<b>QWorkspace</b>."));}void MainWindow::updateMenus(){    bool hasEditor = (activeEditor() != 0);    saveAct->setEnabled(hasEditor);    saveAsAct->setEnabled(hasEditor);    pasteAct->setEnabled(hasEditor);    deleteAct->setEnabled(hasEditor);    copyAvailable(activeEditor()                  && activeEditor()->hasSelectedText());    closeAct->setEnabled(hasEditor);    closeAllAct->setEnabled(hasEditor);    tileAct->setEnabled(hasEditor);    cascadeAct->setEnabled(hasEditor);    nextAct->setEnabled(hasEditor);    previousAct->setEnabled(hasEditor);    windowsMenu->clear();    createWindowsMenu();}void MainWindow::createWindowsMenu(){    closeAct->addTo(windowsMenu);    closeAllAct->addTo(windowsMenu);    windowsMenu->insertSeparator();    tileAct->addTo(windowsMenu);    cascadeAct->addTo(windowsMenu);    windowsMenu->insertSeparator();    nextAct->addTo(windowsMenu);    previousAct->addTo(windowsMenu);    if (activeEditor()) {        windowsMenu->insertSeparator();        windows = workspace->windowList();        int numVisibleEditors = 0;        for (int i = 0; i < (int)windows.count(); ++i) {            QWidget *win = windows.at(i);            if (!win->isHidden()) {                QString text = tr("%1 %2")                               .arg(numVisibleEditors + 1)                               .arg(win->caption());                if (numVisibleEditors < 9)                    text.prepend("&");                int id = windowsMenu->insertItem(                              text, this, SLOT(activateWindow(int)));                bool isActive = (activeEditor() == win);                windowsMenu->setItemChecked(id, isActive);                windowsMenu->setItemParameter(id, i);                ++numVisibleEditors;            }        }    }}void MainWindow::activateWindow(int param){    QWidget *win = windows.at(param);    win->show();    win->setFocus();}void MainWindow::copyAvailable(bool available){    cutAct->setEnabled(available);    copyAct->setEnabled(available);}void MainWindow::updateModIndicator(){    if (activeEditor() && activeEditor()->isModified())        modLabel->setText(tr("MOD"));    else        modLabel->clear();}void MainWindow::closeEvent(QCloseEvent *event){    workspace->closeAllWindows();    if (activeEditor())        event->ignore();    else        event->accept();}