К сожалению, из памяти напрочь истёрлось, как я получил дистрибутив (дело было три года назад, и потом я к этой теме не возвращался). Здесь придётся основательно прошерстить интернет. Можно попробовать вот этот ресурс: https://github.com/brCreate/QScintilla Поэтому просто приведу код с некоторыми пояснениями в комментариях.
В итоге должно получиться вот такое приложение.
приложение.про
- CONFIG += qscintilla2
- TARGET = MyQScintillaApplication
- HEADERS = mainwindow.h
- SOURCES = main.cpp mainwindow.cpp
- RESOURCES = application.qrc
приложение.qrc
- <!DOCTYPE RCC><RCC version="1.0">
- <qresource>
- <file>images/copy.png</file>
- <file>images/cut.png</file>
- <file>images/new.png</file>
- <file>images/open.png</file>
- <file>images/paste.png</file>
- <file>images/save.png</file>
- </qresource>
- </RCC>
main.cpp
- #include <QApplication>
- #include "mainwindow.h"
- int main(int argc, char *argv[])
- {
- Q_INIT_RESOURCE(application);
- QApplication app(argc, argv);
- MainWindow mainWin;
- mainWin.show();
- return app.exec();
- }
главное окно.h
- #ifndef MAINWINDOW_H
- #define MAINWINDOW_H
- #include <QMainWindow>
- class QAction;
- class QMenu;
- class QsciScintilla;
- class MainWindow : public QMainWindow
- {
- Q_OBJECT
- public:
- MainWindow();
- protected:
- void closeEvent(QCloseEvent *event);
- private slots:
- void newFile();
- void open();
- bool save();
- bool saveAs();
- void about();
- void documentWasModified();
- private:
- void createActions();
- void createMenus();
- void createToolBars();
- void createStatusBar();
- void readSettings();
- void writeSettings();
- bool maybeSave();
- void loadFile(const QString &fileName);
- bool saveFile(const QString &fileName);
- void setCurrentFile(const QString &fileName);
- QString strippedName(const QString &fullFileName);
- QsciScintilla *textEdit;
- QString curFile;
- QMenu *fileMenu;
- QMenu *editMenu;
- QMenu *helpMenu;
- QToolBar *fileToolBar;
- QToolBar *editToolBar;
- QAction *newAct;
- QAction *openAct;
- QAction *saveAct;
- QAction *saveAsAct;
- QAction *exitAct;
- QAction *cutAct;
- QAction *copyAct;
- QAction *pasteAct;
- QAction *aboutAct;
- QAction *aboutQtAct;
- };
- #endif
главное окно.cpp
- #include <QAction>
- #include <QApplication>
- #include <QCloseEvent>
- #include <QFile>
- #include <QFileInfo>
- #include <QFileDialog>
- #include <QIcon>
- #include <QMenu>
- #include <QMenuBar>
- #include <QMessageBox>
- #include <QPoint>
- #include <QSettings>
- #include <QSize>
- #include <QStatusBar>
- #include <QTextStream>
- #include <QToolBar>
- #include <Qsci/qsciscintilla.h>
- #include <Qsci/qscistyle.h>
- #include <Qsci/qscilexercpp.h>
- #include "mainwindow.h"
- MainWindow::MainWindow()
- {
- textEdit = new QsciScintilla;
- setCentralWidget(textEdit);
- createActions();
- createMenus();
- createToolBars();
- createStatusBar();
- readSettings();
- connect(textEdit, SIGNAL(textChanged()), this, SLOT(documentWasModified()));
- setCurrentFile("");
- textEdit->append("Append text");
- textEdit->setUtf8(true);
- //! Текущая строка кода и ее подсветка
- textEdit->setCaretLineVisible(true);
- textEdit->setCaretLineBackgroundColor(QColor("yellow"));
- //! Выравнивание
- textEdit->setAutoIndent(true);
- textEdit->setIndentationGuides(false);
- textEdit->setIndentationsUseTabs(true);
- textEdit->setIndentationWidth(4);
- //! margin это полоска слева, на которой обычно располагаются breakpoints
- textEdit->setMarginsBackgroundColor(QColor("gainsboro"));
- textEdit->setMarginLineNumbers(1, true);
- textEdit->setMarginWidth(1, 50);
- //! Авто-дополнение кода в зависимости от источника
- textEdit->setAutoCompletionSource(QsciScintilla::AcsAll);
- textEdit->setAutoCompletionCaseSensitivity(true);
- textEdit->setAutoCompletionReplaceWord(true);
- textEdit->setAutoCompletionUseSingle(QsciScintilla::AcusAlways);
- textEdit->setAutoCompletionThreshold(0);
- //! Подсветка соответствий скобок
- textEdit->setBraceMatching(QsciScintilla::SloppyBraceMatch);
- textEdit->setMatchedBraceBackgroundColor(Qt::yellow);
- textEdit->setUnmatchedBraceForegroundColor(Qt::blue);
- //! Линия ограничения кода
- textEdit->setEdgeColor(Qt::green);
- textEdit->setEdgeColumn(80);
- textEdit->setEdgeMode(QsciScintilla::EdgeMode::EdgeLine);
- //! Установки текстового редактора
- textEdit->setColor(Qt::green);
- textEdit->setFont(QFont("Verdana"));
- textEdit->setPaper(Qt::black);
- textEdit->setWhitespaceForegroundColor(Qt::white);
- textEdit->setWhitespaceVisibility(QsciScintilla::WhitespaceVisibility::WsVisible);
- }
- 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(textEdit->isModified());
- }
- 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()));
- 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(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("Trolltech", "Application Example");
- QPoint pos = settings.value("pos", QPoint(200, 200)).toPoint();
- QSize size = settings.value("size", QSize(400, 400)).toSize();
- resize(size);
- move(pos);
- }
- void MainWindow::writeSettings()
- {
- QSettings settings("Trolltech", "Application Example");
- settings.setValue("pos", pos());
- settings.setValue("size", size());
- }
- bool MainWindow::maybeSave()
- {
- if (textEdit->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)) {
- 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->setText(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)) {
- 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->text();
- QApplication::restoreOverrideCursor();
- setCurrentFile(fileName);
- statusBar()->showMessage(tr("File saved"), 2000);
- return true;
- }
- void MainWindow::setCurrentFile(const QString &fileName)
- {
- curFile = fileName;
- textEdit->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();
- }
По горячим следам (с другого форума вопрос задали, пришлось в памяти освежить всё) решил дополнить.