spreadsheet C++ Qt GUI4源码（VS2010+QT）

#include <QtWidgets> #include "finddialog.h" #include "gotocelldialog.h" #include "mainwindow.h" #include "sortdialog.h" #include "spreadsheet.h" MainWindow::MainWindow(QWidget *parent) : QMainWindow(parent) { spreadsheet = new Spreadsheet; setCentralWidget(spreadsheet); createActions(); createMenus(); createContextMenu(); createToolBars(); createStatusBar(); readSettings(); findDialog = 0; setWindowIcon(QIcon("images/icon.png")); setCurrentFile(""); } MainWindow::~MainWindow() { } void MainWindow::closeEvent(QCloseEvent *event) { if (okToContinue()) { writeSettings(); event->accept(); } else { event->ignore(); } } void MainWindow::newFile() { if (okToContinue()) { spreadsheet->clear(); setCurrentFile(""); } } void MainWindow::open() { if (okToContinue()) { QString fileName = QFileDialog::getOpenFileName(this, tr("Open Spreadsheet"), ".", tr("Spreadsheet files (*.sp)")); 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, tr("Save Spreadsheet"), ".", tr("Spreadsheet files (*.sp)")); if (fileName.isEmpty()) return false; return saveFile(fileName); } void MainWindow::find() { if (!findDialog) { findDialog = new FindDialog(this); connect(findDialog, SIGNAL(findNext(const QString &, Qt::CaseSensitivity)), spreadsheet, SLOT(findNext(const QString &, Qt::CaseSensitivity))); connect(findDialog, SIGNAL(findPrevious(const QString &, Qt::CaseSensitivity)), spreadsheet, SLOT(findPrevious(const QString &, Qt::CaseSensitivity))); } findDialog->show(); findDialog->raise(); findDialog->activateWindow(); } void MainWindow::goToCell() { GoToCellDialog dialog(this); if (dialog.exec()) { QString str = dialog.lineEdit->text().toUpper(); spreadsheet->setCurrentCell(str.mid(1).toInt() - 1, str[0].unicode() - 'A'); } } void MainWindow::sort() { SortDialog dialog(this); QTableWidgetSelectionRange range = spreadsheet->selectedRange(); dialog.setColumnRange('A' + range.leftColumn(), 'A' + range.rightColumn()); if (dialog.exec()) { SpreadsheetCompare compare; compare.keys[0] = dialog.primaryColumnCombo->currentIndex(); compare.keys[1] = dialog.secondaryColumnCombo->currentIndex() - 1; compare.keys[2] = dialog.tertiaryColumnCombo->currentIndex() - 1; compare.ascending[0] = (dialog.primaryOrderCombo->currentIndex() == 0); compare.ascending[1] = (dialog.secondaryOrderCombo->currentIndex() == 0); compare.ascending[2] = (dialog.tertiaryOrderCombo->currentIndex() == 0); spreadsheet->sort(compare); } } void MainWindow::about() { QMessageBox::about(this, tr("About Spreadsheet"), tr("<h2>Spreadsheet 1.1</h2>" "<p>Copyright &copy; 2008 Software Inc." "<p>Spreadsheet is a small application that " "demonstrates QAction, QMainWindow, QMenuBar, " "QStatusBar, QTableWidget, QToolBar, and many other " "Qt classes.")); } void MainWindow::openRecentFile() { if (okToContinue()) { QAction *action = qobject_cast<QAction *>(sender()); if (action) loadFile(action->data().toString()); } } void MainWindow::updateStatusBar() { locationLabel->setText(spreadsheet->currentLocation()); formulaLabel->setText(spreadsheet->currentFormula()); } void MainWindow::spreadsheetModified() { setWindowModified(true); updateStatusBar(); } void MainWindow::createActions() { newAction = new QAction(tr("&New"), this); newAction->setIcon(QIcon("images/new.png")); newAction->setShortcut(QKeySequence::New); newAction->setStatusTip(tr("Create a new spreadsheet file")); connect(newAction, SIGNAL(triggered()), this, SLOT(newFile())); openAction = new QAction(tr("&Open..."), this); openAction->setIcon(QIcon("images/open.png")); openAction->setShortcut(QKeySequence::Open); openAction->setStatusTip(tr("Open an existing spreadsheet file")); connect(openAction, SIGNAL(triggered()), this, SLOT(open())); saveAction = new QAction(tr("&Save"), this); saveAction->setIcon(QIcon("images/save.png")); saveAction->setShortcut(QKeySequence::Save); saveAction->setStatusTip(tr("Save the spreadsheet to disk")); connect(saveAction, SIGNAL(triggered()), this, SLOT(save())); saveAsAction = new QAction(tr("Save &As..."), this); saveAsAction->setStatusTip(tr("Save the spreadsheet under a new " "name")); connect(saveAsAction, SIGNAL(triggered()), this, SLOT(saveAs())); for (int i = 0; i < MaxRecentFiles; ++i) { recentFileActions[i] = new QAction(this); recentFileActions[i]->setVisible(false); connect(recentFileActions[i], SIGNAL(triggered()), this, SLOT(openRecentFile())); } exitAction = new QAction(tr("E&xit"), this); exitAction->setShortcut(tr("Ctrl+Q")); exitAction->setStatusTip(tr("Exit the application")); connect(exitAction, SIGNAL(triggered()), this, SLOT(close())); cutAction = new QAction(tr("Cu&t"), this); cutAction->setIcon(QIcon("images/cut.png")); cutAction->setShortcut(QKeySequence::Cut); cutAction->setStatusTip(tr("Cut the current selection's contents " "to the clipboard")); connect(cutAction, SIGNAL(triggered()), spreadsheet, SLOT(cut())); copyAction = new QAction(tr("&Copy"), this); copyAction->setIcon(QIcon("images/copy.png")); copyAction->setShortcut(QKeySequence::Copy); copyAction->setStatusTip(tr("Copy the current selection's contents " "to the clipboard")); connect(copyAction, SIGNAL(triggered()), spreadsheet, SLOT(copy())); pasteAction = new QAction(tr("&Paste"), this); pasteAction->setIcon(QIcon("images/paste.png")); pasteAction->setShortcut(QKeySequence::Paste); pasteAction->setStatusTip(tr("Paste the clipboard's contents into " "the current selection")); connect(pasteAction, SIGNAL(triggered()), spreadsheet, SLOT(paste())); deleteAction = new QAction(tr("&Delete"), this); deleteAction->setShortcut(QKeySequence::Delete); deleteAction->setStatusTip(tr("Delete the current selection's " "contents")); connect(deleteAction, SIGNAL(triggered()), spreadsheet, SLOT(del())); selectRowAction = new QAction(tr("&Row"), this); selectRowAction->setStatusTip(tr("Select all the cells in the " "current row")); connect(selectRowAction, SIGNAL(triggered()), spreadsheet, SLOT(selectCurrentRow())); selectColumnAction = new QAction(tr("&Column"), this); selectColumnAction->setStatusTip(tr("Select all the cells in the " "current column")); connect(selectColumnAction, SIGNAL(triggered()), spreadsheet, SLOT(selectCurrentColumn())); selectAllAction = new QAction(tr("&All"), this); selectAllAction->setShortcut(QKeySequence::SelectAll); selectAllAction->setStatusTip(tr("Select all the cells in the " "spreadsheet")); connect(selectAllAction, SIGNAL(triggered()), spreadsheet, SLOT(selectAll())); findAction = new QAction(tr("&Find..."), this); findAction->setIcon(QIcon("images/find.png")); findAction->setShortcut(QKeySequence::Find); findAction->setStatusTip(tr("Find a matching cell")); connect(findAction, SIGNAL(triggered()), this, SLOT(find())); goToCellAction = new QAction(tr("&Go to Cell..."), this); goToCellAction->setIcon(QIcon("images/gotocell.png")); goToCellAction->setShortcut(tr("Ctrl+G")); goToCellAction->setStatusTip(tr("Go to the specified cell")); connect(goToCellAction, SIGNAL(triggered()), this, SLOT(goToCell())); recalculateAction = new QAction(tr("&Recalculate"), this); recalculateAction->setShortcut(tr("F9")); recalculateAction->setStatusTip(tr("Recalculate all the " "spreadsheet's formulas")); connect(recalculateAction, SIGNAL(triggered()), spreadsheet, SLOT(recalculate())); sortAct