mainwindow.h
#ifndef MAINWINDOW_H #define MAINWINDOW_H #include <QMainWindow> QT_BEGIN_NAMESPACE namespace Ui { class MainWindow; } QT_END_NAMESPACE class QAction; class QMenu; class QToolBar; class QLabel; class FindDialog; class Spreadsheet; class MainWindow : public QMainWindow { Q_OBJECT public: MainWindow(QWidget *parent = nullptr); ~MainWindow(); protected: void closeEvent(QCloseEvent *event); private slots: void newFile(); bool okToContinue(); void open(); bool save(); bool saveAs(); bool saveFile(const QString &fileName); bool loadFile(const QString &fileName); void setCurrentFile(const QString &fileName); QString strippedName(const QString &fullFileName); void find(); void goToCell(); void sort(); void about(); void openRecentFile(); void updateStatusBar(); void spreadsheetModified(); private: Ui::MainWindow *ui; FindDialog *findDialog; Spreadsheet *spreadsheet; QString currentFileName; void createActions(); void createMenus(); void createFileActions(); void createEditActions(); void createToolsActions(); void createOptionsActions(); void createHelpActions(); void createToolBars(); void createStatusBar(); void createContextMenu(); void readSettings(); void writeSettings(); void updateRecentFileAction(); QStringList recentFiles; QString curFile; /*最近浏览文件*/ enum {MaxRecentFiles=5}; QAction *recentFileActions[MaxRecentFiles]; QAction *separatorAction; /*菜单*/ QMenu *fileMenu; QMenu *editMenu; QMenu *toolsMenu; QMenu *optionsMenu; QMenu *helpMenu; /*工具栏*/ QToolBar *fileToolBar; QToolBar *editToolBar; /*状态栏标签*/ QLabel *locationLabel; QLabel *formulaLabel; /*File动作*/ QAction *newAction; QAction *openAction; QAction *saveAction; QAction *saveAsAction; QAction *exitAction; /*Edit动作*/ QAction *cutAction; QAction *copyAction; QAction *pasteAction; QAction *deleteAction; QMenu *selectSubMenu; QAction *selectRowAction; QAction *selectColumnAction; QAction *selectAllAction; QAction *findAction; QAction *goToCellAction; /*Tools动作*/ QAction *recalculateAction; QAction *sortAction; /*Options动作*/ QAction *showGridAction; QAction *autoRecalcAction; /*Help动作*/ QAction *aboutAction; QAction *aboutQtAction; }; #endif // MAINWINDOW_Hmainwindow.cpp
#include <QtWidgets> #include "mainwindow.h" #include "ui_mainwindow.h" #include "spreadsheet.h" #include "finddialog.h" #include "gotocelldialog.h" #include "sortdialog.h" MainWindow::MainWindow(QWidget *parent) : QMainWindow(parent) , ui(new Ui::MainWindow) { ui->setupUi(this); spreadsheet =new Spreadsheet(this); setCentralWidget(spreadsheet); createActions(); createMenus(); createToolBars(); createStatusBar(); readSettings(); findDialog= nullptr; setWindowIcon(QIcon(":/image/clear.png")); setCurrentFile(""); } void MainWindow::createMenus() { /*file menu*/ fileMenu = menuBar()->addMenu(tr("&File")); fileMenu->addAction(newAction); fileMenu->addAction(openAction); fileMenu->addAction(saveAction); fileMenu->addAction(saveAsAction); separatorAction=fileMenu->addSeparator(); for (int i=0;i<MaxRecentFiles;++i) fileMenu->addAction(recentFileActions[i]); fileMenu->addSeparator(); fileMenu->addAction(exitAction); /*edit menu*/ editMenu = menuBar()->addMenu(tr("&Edit")); editMenu->addAction(cutAction); editMenu->addAction(copyAction); editMenu->addAction(pasteAction); editMenu->addAction(deleteAction); selectSubMenu = editMenu->addMenu(tr("&Select")); selectSubMenu->addAction(selectRowAction); selectSubMenu->addAction(selectColumnAction); selectSubMenu->addAction(selectAllAction); editMenu->addSeparator(); editMenu->addAction(findAction); editMenu->addAction(goToCellAction); /*tools menu*/ toolsMenu = menuBar()->addMenu(tr("&Tools")); toolsMenu->addAction(recalculateAction); toolsMenu->addAction(sortAction); menuBar()->addSeparator(); /*option menu*/ optionsMenu = menuBar()->addMenu(tr("&Option")); optionsMenu->addAction(showGridAction); optionsMenu->addAction(autoRecalcAction); /*间隔器*/ menuBar()->addSeparator(); /*help menu*/ helpMenu = menuBar()->addMenu(tr("&Help")); helpMenu->addAction(aboutAction); helpMenu->addAction(aboutQtAction); } void MainWindow::createActions() { createFileActions(); createEditActions(); createToolsActions(); createOptionsActions(); createHelpActions(); } void MainWindow::createContextMenu() { spreadsheet->addAction(cutAction); spreadsheet->addAction(copyAction); spreadsheet->addAction(pasteAction); spreadsheet->setContextMenuPolicy(Qt::ActionsContextMenu); } /*工具栏*/ void MainWindow::createToolBars() { fileToolBar = addToolBar(tr("&File")); fileToolBar->addAction(newAction); fileToolBar->addAction(openAction); fileToolBar->addAction(saveAction); editToolBar = addToolBar(tr("&Edit")); editToolBar->addAction(cutAction); editToolBar->addAction(copyAction); editToolBar->addAction(pasteAction); editToolBar->addSeparator(); editToolBar->addAction(findAction); editToolBar->addAction(goToCellAction); } /*状态栏*/ void MainWindow::createStatusBar() { /* W999 作用：1.显示的内容。2.决定locationLabel的尺寸大小*/ locationLabel = new QLabel(" W999 "); /*对齐方式：居中对齐*/ locationLabel->setAlignment(Qt::AlignHCenter); /*最小大小为窗口部件的理想大小*/ locationLabel->setMinimumSize(locationLabel->sizeHint()); formulaLabel = new QLabel; /*缩进，文本与左侧边的偏移量*/ formulaLabel->setIndent(3); /*单元格定位指示器，伸展因子默认为0*/ statusBar()->addWidget(locationLabel); /*单元格公式指示器，伸展因子为1*/ statusBar()->addWidget(formulaLabel, 1); connect(spreadsheet,SIGNAL(currentCellChanged(int,int,int,int)),this,SLOT(updateStatusBar())); connect(spreadsheet,SIGNAL(modified()),this,SLOT(spreadsheetModified())); updateStatusBar(); } void MainWindow::updateStatusBar() { locationLabel->setText(spreadsheet->currentLocation()); formulaLabel->setText(spreadsheet->currentFormula()); } void MainWindow::spreadsheetModified() { setWindowModified(true); updateStatusBar(); } void MainWindow::createFileActions() { /*newAction*/ newAction=new QAction(tr("&New"),this); newAction->setIcon(QIcon(":/image/load.png")); newAction->setShortcut(QKeySequence::New); newAction->setStatusTip(tr("Create a new spreadsheet file")); connect(newAction,SIGNAL(triggered()),this,SLOT(newFile())); /*openAction*/ openAction = new QAction(tr("&Open"), this); openAction->setIcon(QIcon(":/image/massload.png")); openAction->setShortcut(QKeySequence::Open); openAction->setStatusTip(tr("Opne an existing spreadsheet file")); connect(openAction,SIGNAL(triggered()),this,SLOT(open())); /*saveAction*/ saveAction = new QAction(tr("&Save"), this); saveAction->setIcon(QIcon(":/image/save.png")); saveAction->setShortcut(QKeySequence::Save); saveAction->setStatusTip(tr("Save the spreadsheet to disk")); connect(saveAction,SIGNAL(triggered()),this,SLOT(save())); /*saveAsAction*/ saveAsAction = new QAction(tr("Save &As..."), this); saveAsAction->setIcon(QIcon(":/image/save-as.png")); saveAsAction->setShortcut(QKeySequence::SaveAs); saveAsAction->setStatusTip(tr("Save the spreadsheet under a new name")); connect(saveAsAction,SIGNAL(triggered()),this,SLOT(saveAs())); /*openRecentFile*/ 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 */ exitAction = new QAction(tr("&Exit"), this); exitAction->setShortcut(tr("Ctrl+Q")); exitAction->setStatusTip(tr("Exit the application")); connect(exitAction,SIGNAL(triggered()),this,SLOT(close())); } /*edit动作*/ void MainWindow::createEditActions() { /*cutAction*/ cutAction = new QAction(tr("Cu&t"), this); cutAction->setIcon(QIcon(":/image/cut.png")); cutAction->setShortcut(QKeySequence::Cut); cutAction->setStatusTip(tr("Cut the Current selection's " "contents to the clipboard")); /*copyAction*/ copyAction = new QAction(tr("&Copy"), this); copyAction->setIcon(QIcon(":/image/copy.png")); copyAction->setShortcut(QKeySequence::Copy); copyAction->setStatusTip(tr("Copy the current selection's " "contents to the clipboard")); /*pasteAction*/ pasteAction = new QAction(tr("&Paste"), this); pasteAction->setIcon(QIcon(":/image/paste.png")); pasteAction->setShortcut(QKeySequence::Paste); pasteAction->setStatusTip(tr("Paste the clipboard's " "contents into the current selection")); /*deleteAction*/ deleteAction = new QAction(tr("&Delete"), this); deleteAction->setIcon(QIcon(":/image/delete.png")); deleteAction->setShortcut(QKeySequence::Delete); deleteAction->setStatusTip(tr("Delete the current selection's " "contents")); selectRowAction = new QAction(tr("&Row"), this); selectRowAction->setStatusTip(tr("Select all the cells in " "the current row")); selectColumnAction = new QAction(tr("&Column"), this); selectColumnAction->setStatusTip(tr("Select all the cells in " "the current column")); 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*/ findAction = new QAction(tr("&Find..."), this); findAction->setIcon(QIcon(":/image/enlarge.png")); findAction->setShortcut(QKeySequence::Find); findAction->setStatusTip(tr("Find a matching cell")); connect(findAction,SIGNAL(triggered()),this,SLOT(find())); /*goToCellAction*/ goToCellAction = new QAction(tr("&Go to Cell..."), this); goToCellAction->setIcon(QIcon(":/image/reduce")); goToCellAction->setShortcut(tr("Ctrl+G")); } /*tools动作*/ void MainWindow::createToolsActions() { recalculateAction = new QAction(tr("&Recalculate"), this); recalculateAction->setShortcut(tr("F9")); recalculateAction->setStatusTip(tr("Recalculate all the " "spreadsheet's formulas")); sortAction = new QAction(tr("&Sort..."), this); sortAction->setStatusTip(tr("Sort the selected cells or all " "the cells")); } /*options动作*/ void MainWindow::createOptionsActions() { showGridAction = new QAction(tr("&Show Grid"), this); showGridAction->setCheckable(true); /*使动作可被选*/ showGridAction->setStatusTip(tr("Show or hide the " "spreadsheet's grid")); connect(showGridAction,SIGNAL(toggled(bool)),spreadsheet,SLOT(setShowGrid(bool))); autoRecalcAction = new QAction(tr("Auto-Recalculate"), this); autoRecalcAction->setCheckable(true); /*使动作可被选*/ autoRecalcAction->setStatusTip(tr("Switch auto-" "recalculate on or off")); } /*help动作*/ void MainWindow::createHelpActions() { aboutAction = new QAction(tr("&About"), this); aboutAction->setStatusTip(tr("Show the application's " "About box")); aboutQtAction = new QAction(tr("About &Qt"), this); aboutQtAction->setStatusTip(tr("Show the Qt library's " "About box")); connect(aboutAction,SIGNAL(triggered()),this,SLOT(about())); connect(aboutQtAction,SIGNAL(triggered()),qApp,SLOT(aboutQt())); } void MainWindow::setCurrentFile(const QString &fileName) { currentFileName = fileName; /*true:保存过和未保存有区别；false:无区别*/ setWindowModified(true); QString shownName = tr("Untitled"); if (!currentFileName.isEmpty()) { shownName = strippedName(currentFileName); /*名字去掉路径*/ } /*[*]:当WindowModified属性为true时，保存过的文件才没有星号*/ setWindowTitle(tr("%1[*] - %2").arg(shownName) .arg("Spreadsheet")); } /*去掉路径，只保留文件名*/ QString MainWindow::strippedName(const QString &fullFileName) { return QFileInfo(fullFileName).fileName(); } /************************具体功能实现*******************************/ void MainWindow::newFile() { MainWindow* mainWin=new MainWindow; mainWin->show(); // if (okToContinue()) { // spreadsheet->clear(); // setCurrentFile(""); // } } bool MainWindow::okToContinue() { if (isWindowModified()){ int r=QMessageBox::warning(this,tr("Spreadsheet"),tr("The document has been modified.\n""Do you want to save your changes?"),QMessageBox::Yes|QMessageBox::No|QMessageBox::Cancel); if (r==QMessageBox::Yes){ return save(); }else if(r==QMessageBox::Cancel){ return false; } } return true; } void MainWindow::open() { if(okToContinue()){ QString fileName=QFileDialog::getOpenFileName(this,tr("Open Spreadsheet"),".",tr("Spreadsheet files(*.sp)\n""Comma-separated values files(*.csv)\n")); if (!fileName.isEmpty()) loadFile(fileName); } } void MainWindow::openRecentFile() { if(okToContinue()){ QAction *action=qobject_cast<QAction *>(sender()); if (action) loadFile(action->data().toString()); } } bool MainWindow::loadFile(const QString &fileName) { if (!spreadsheet->readFile(fileName)) { statusBar()->showMessage(tr("Loading canceled"), 2000); } return false; setCurrentFile(fileName); statusBar()->showMessage( tr("File loaded"), 2000); return true; } bool MainWindow::saveAs() { QString fileName = QFileDialog::getSaveFileName( this, tr("Save Spreadsheet"), "." , tr("Spreadsheet files (*.sp)") ); if( fileName.isEmpty() ) return false; return saveFile(fileName); } bool MainWindow::save() { if (curFile.isEmpty()){ return saveAs(); }else{ return saveFile(curFile); } } bool MainWindow::saveFile(const QString &fileName) { if (!spreadsheet->writeFile(fileName)){ statusBar()->showMessage(tr("Saving canceled"), 2000);} return false; setCurrentFile(fileName); statusBar()->showMessage( tr("File loaded"), 2000); return true; } void MainWindow::closeEvent(QCloseEvent *event) { if (okToContinue()){ writeSettings(); event->accept(); }else { event->ignore(); } } //void MainWindow::setCurrentFile(const QString &fileName) //{ // curFile=fileName; // setWindowModified(false); // QString showName=tr("Untitled"); // if (!curFile.isEmpty()){ // showName=strippedName(curFile); // recentFiles.removeAll(curFile); // recentFiles.prepend(curFile); // updateRecentFileAction(); // } // setWindowTitle(tr("%1[*]-%2").arg(showName).arg(tr("Spreadsheet"))); //} //QString MainWindow::strippedName(const QString &fullFileName) //{ // return QFileInfo(fullFileName).fileName(); //} void MainWindow::updateRecentFileAction() { // QSettings settings("Trolltech", "Recent Files Example"); // QStringList files = settings.value("recentFileList").toStringList(); // int numRecentFiles = qMin(files.size(), int(MaxRecentFiles)); // for (int i = 0; i < numRecentFiles; ++i) { // QString text = tr("&%1 %2").arg(i + 1).arg(strippedName(files[i])); // recentFileActions[i]->setText(text); // recentFileActions[i]->setData(files[i]); // recentFileActions[i]->setVisible(true); // } // for (int j = numRecentFiles; j < MaxRecentFiles; ++j) // recentFileActions[j]->setVisible(false); // separatorAction->setVisible(numRecentFiles > 0); QMutableStringListIterator i(recentFiles); while (i.hasNext()) { if (!QFile::exists(i.next())) i.remove(); } for (int j = 0; j < MaxRecentFiles; ++j) { if (j < recentFiles.count()) { QString text = tr("&%1 %2") .arg(j + 1) .arg(strippedName(recentFiles[j])); recentFileActions[j]->setText(text); recentFileActions[j]->setData(recentFiles[j]); recentFileActions[j]->setVisible(true); } else { recentFileActions[j]->setVisible(false); } } separatorAction->setVisible(!recentFiles.isEmpty()); } 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; //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; // //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 © 2008 Software Inc." "<p>Spreadsheet is a small application that " "demonstrates QAction, QMainWindow, QMenuBar, " "QStatusBar, QTableWidget, QToolBar, and many other " "Qt classes.")); } void MainWindow::readSettings() { QSettings settings("Software Inc.", "Spreadsheet");restoreGeometry(settings.value("geometry").toByteArray()); recentFiles = settings.value("recentFiles").toStringList(); updateRecentFileAction(); bool showGrid = settings.value("showGrid", true).toBool(); showGridAction->setChecked(showGrid); bool autoRecalc = settings.value("autoRecalc", true).toBool(); autoRecalcAction->setChecked(autoRecalc); } void MainWindow::writeSettings() { QSettings settings("Software Inc.", "Spreadsheet"); settings.setValue("geometry", saveGeometry()); settings.setValue("recentFiles", recentFiles); settings.setValue("showGrid", showGridAction->isChecked()); settings.setValue("autoRecalc", autoRecalcAction->isChecked()); } MainWindow::~MainWindow() { delete ui; }主界面
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