#include <qaction.h>#include <qapplication.h>#include <qcombobox.h>#include <qfiledialog.h>#include <qlabel.h>#include <qlineedit.h>#include <qmenubar.h>#include <qmessagebox.h>#include <qpopupmenu.h>#include <qsettings.h>#include <qstatusbar.h>#include "cell.h"#include "finddialog.h"#include "gotocelldialog.h"#include "mainwindow.h"#include "sortdialog.h"#include "spreadsheet.h"MainWindow::MainWindow(QWidget *parent, const char *name)    : QMainWindow(parent, name){    spreadsheet = new Spreadsheet(this);    setCentralWidget(spreadsheet);    createActions();    createMenus();    createToolBars();    createStatusBar();    readSettings();    setCaption(tr("Spreadsheet"));    setIcon(QPixmap::fromMimeSource("icon.png"));    findDialog = 0;    fileFilters = tr("Spreadsheet files (*.sp)");    modified = false;}void MainWindow::createActions(){    newAct = new QAction(tr("&New"), tr("Ctrl+N"), this);    newAct->setIconSet(QPixmap::fromMimeSource("new.png"));    newAct->setStatusTip(tr("Create a new spreadsheet 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 spreadsheet 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 spreadsheet to disk"));    connect(saveAct, SIGNAL(activated()), this, SLOT(save()));    saveAsAct = new QAction(tr("Save &As..."), 0, this);    saveAsAct->setStatusTip(tr("Save the spreadsheet 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's contents "                            "to the clipboard"));    connect(cutAct, SIGNAL(activated()), spreadsheet, SLOT(cut()));    copyAct = new QAction(tr("&Copy"), tr("Ctrl+C"), this);    copyAct->setIconSet(QPixmap::fromMimeSource("copy.png"));    copyAct->setStatusTip(tr("Copy the current selection's contents "                             "to the clipboard"));    connect(copyAct, SIGNAL(activated()), spreadsheet, 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 into "                              "the current selection"));    connect(pasteAct, SIGNAL(activated()),            spreadsheet, SLOT(paste()));    deleteAct = new QAction(tr("&Delete"), tr("Del"), this);    deleteAct->setIconSet(QPixmap::fromMimeSource("delete.png"));    deleteAct->setStatusTip(tr("Delete the current selection's "                               "contents"));    connect(deleteAct, SIGNAL(activated()),            spreadsheet, SLOT(del()));    selectRowAct = new QAction(tr("&Row"), 0, this);    selectRowAct->setStatusTip(tr("Select all the cells in the "                                  "current row"));    connect(selectRowAct, SIGNAL(activated()),            spreadsheet, SLOT(selectRow()));    selectColumnAct = new QAction(tr("&Column"), 0, this);    selectColumnAct->setStatusTip(tr("Select all the cells in the "                                     "current column"));    connect(selectColumnAct, SIGNAL(activated()),            spreadsheet, SLOT(selectColumn()));    selectAllAct = new QAction(tr("&All"), tr("Ctrl+A"), this);    selectAllAct->setStatusTip(tr("Select all the cells in the "                                  "spreadsheet"));    connect(selectAllAct, SIGNAL(activated()),            spreadsheet, SLOT(selectAll()));    findAct = new QAction(tr("&Find..."), tr("Ctrl+F"), this);    findAct->setIconSet(QPixmap::fromMimeSource("find.png"));    findAct->setStatusTip(tr("Find a matching cell"));    connect(findAct, SIGNAL(activated()), this, SLOT(find()));    goToCellAct = new QAction(tr("&Go to Cell..."), tr("F5"), this);    goToCellAct->setIconSet(QPixmap::fromMimeSource("gotocell.png"));    goToCellAct->setStatusTip(tr("Go to the specified cell"));    connect(goToCellAct, SIGNAL(activated()),            this, SLOT(goToCell()));    recalculateAct = new QAction(tr("&Recalculate"), tr("F9"), this);    recalculateAct->setStatusTip(tr("Recalculate all the "                                    "spreadsheet's formulas"));    connect(recalculateAct, SIGNAL(activated()),            spreadsheet, SLOT(recalculate()));    sortAct = new QAction(tr("&Sort..."), 0, this);    sortAct->setStatusTip(tr("Sort the selected cells or all the "                             "cells"));    connect(sortAct, SIGNAL(activated()), this, SLOT(sort()));    showGridAct = new QAction(tr("&Show Grid"), 0, this);    showGridAct->setToggleAction(true);    showGridAct->setOn(spreadsheet->showGrid());    showGridAct->setStatusTip(tr("Show or hide the spreadsheet's "                                 "grid"));    connect(showGridAct, SIGNAL(toggled(bool)),            spreadsheet, SLOT(setShowGrid(bool)));    autoRecalcAct = new QAction(tr("&Auto-recalculate"), 0, this);    autoRecalcAct->setToggleAction(true);    autoRecalcAct->setOn(spreadsheet->autoRecalculate());    autoRecalcAct->setStatusTip(tr("Switch auto-recalculation on or "                                   "off"));    connect(autoRecalcAct, SIGNAL(toggled(bool)),            spreadsheet, SLOT(setAutoRecalculate(bool)));    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);    for (int i = 0; i < MaxRecentFiles; ++i)        recentFileIds[i] = -1;    editMenu = new QPopupMenu(this);    cutAct->addTo(editMenu);    copyAct->addTo(editMenu);    pasteAct->addTo(editMenu);    deleteAct->addTo(editMenu);    selectSubMenu = new QPopupMenu(this);    selectRowAct->addTo(selectSubMenu);    selectColumnAct->addTo(selectSubMenu);    selectAllAct->addTo(selectSubMenu);    editMenu->insertItem(tr("&Select"), selectSubMenu);    editMenu->insertSeparator();    findAct->addTo(editMenu);    goToCellAct->addTo(editMenu);    toolsMenu = new QPopupMenu(this);    recalculateAct->addTo(toolsMenu);    sortAct->addTo(toolsMenu);    optionsMenu = new QPopupMenu(this);    showGridAct->addTo(optionsMenu);    autoRecalcAct->addTo(optionsMenu);    helpMenu = new QPopupMenu(this);    aboutAct->addTo(helpMenu);    aboutQtAct->addTo(helpMenu);    menuBar()->insertItem(tr("&File"), fileMenu);    menuBar()->insertItem(tr("&Edit"), editMenu);    menuBar()->insertItem(tr("&Tools"), toolsMenu);    menuBar()->insertItem(tr("&Options"), optionsMenu);    menuBar()->insertSeparator();    menuBar()->insertItem(tr("&Help"), helpMenu);}void MainWindow::contextMenuEvent(QContextMenuEvent *event){    QPopupMenu contextMenu(this);    cutAct->addTo(&contextMenu);    copyAct->addTo(&contextMenu);    pasteAct->addTo(&contextMenu);    contextMenu.exec(event->globalPos());}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);    editToolBar->addSeparator();    findAct->addTo(editToolBar);    goToCellAct->addTo(editToolBar);}void MainWindow::newFile(){    if (maybeSave()) {        spreadsheet->clear();        setCurrentFile("");    }}void MainWindow::open(){    if (maybeSave()) {        QString fileName =                QFileDialog::getOpenFileName(".", fileFilters, this);        if (!fileName.isEmpty())            loadFile(fileName);    }}void MainWindow::loadFile(const QString &fileName){    if (spreadsheet->readFile(fileName)) {        setCurrentFile(fileName);        statusBar()->message(tr("File loaded"), 2000);    } else {        statusBar()->message(tr("Loading canceled"), 2000);    }}