diff options
Diffstat (limited to 'examples/tools/customcompleter')
| -rw-r--r-- | examples/tools/customcompleter/customcompleter.pro | 12 | ||||
| -rw-r--r-- | examples/tools/customcompleter/customcompleter.qrc | 5 | ||||
| -rw-r--r-- | examples/tools/customcompleter/main.cpp | 55 | ||||
| -rw-r--r-- | examples/tools/customcompleter/mainwindow.cpp | 118 | ||||
| -rw-r--r-- | examples/tools/customcompleter/mainwindow.h | 77 | ||||
| -rw-r--r-- | examples/tools/customcompleter/resources/wordlist.txt | 1455 | ||||
| -rw-r--r-- | examples/tools/customcompleter/textedit.cpp | 174 | ||||
| -rw-r--r-- | examples/tools/customcompleter/textedit.h | 79 |
8 files changed, 1975 insertions, 0 deletions
diff --git a/examples/tools/customcompleter/customcompleter.pro b/examples/tools/customcompleter/customcompleter.pro new file mode 100644 index 0000000..ebaa831 --- /dev/null +++ b/examples/tools/customcompleter/customcompleter.pro @@ -0,0 +1,12 @@ +HEADERS = mainwindow.h \ + textedit.h +SOURCES = main.cpp \ + mainwindow.cpp \ + textedit.cpp +RESOURCES = customcompleter.qrc + +# install +target.path = $$[QT_INSTALL_EXAMPLES]/tools/customcompleter +sources.files = $$SOURCES $$HEADERS $$RESOURCES $$FORMS customcompleter.pro resources +sources.path = $$[QT_INSTALL_EXAMPLES]/tools/customcompleter +INSTALLS += target sources diff --git a/examples/tools/customcompleter/customcompleter.qrc b/examples/tools/customcompleter/customcompleter.qrc new file mode 100644 index 0000000..d7da1bf --- /dev/null +++ b/examples/tools/customcompleter/customcompleter.qrc @@ -0,0 +1,5 @@ +<!DOCTYPE RCC><RCC version="1.0"> +<qresource prefix="/"> + <file>resources/wordlist.txt</file> +</qresource> +</RCC> diff --git a/examples/tools/customcompleter/main.cpp b/examples/tools/customcompleter/main.cpp new file mode 100644 index 0000000..8e64f6c --- /dev/null +++ b/examples/tools/customcompleter/main.cpp @@ -0,0 +1,55 @@ +/**************************************************************************** +** +** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). +** Contact: Qt Software Information (qt-info@nokia.com) +** +** This file is part of the examples of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** No Commercial Usage +** This file contains pre-release code and may not be distributed. +** You may use this file in accordance with the terms and conditions +** contained in the either Technology Preview License Agreement or the +** Beta Release License Agreement. +** +** GNU Lesser General Public License Usage +** Alternatively, this file may be used under the terms of the GNU Lesser +** General Public License version 2.1 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 2.1 requirements +** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. +** +** In addition, as a special exception, Nokia gives you certain +** additional rights. These rights are described in the Nokia Qt LGPL +** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this +** package. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 3.0 as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU General Public License version 3.0 requirements will be +** met: http://www.gnu.org/copyleft/gpl.html. +** +** If you are unsure which license is appropriate for your use, please +** contact the sales department at qt-sales@nokia.com. +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include <QApplication> +#include "mainwindow.h" + +//! [0] +int main(int argc, char *argv[]) +{ + Q_INIT_RESOURCE(customcompleter); + + QApplication app(argc, argv); + MainWindow window; + window.show(); + return app.exec(); +} +//! [0] diff --git a/examples/tools/customcompleter/mainwindow.cpp b/examples/tools/customcompleter/mainwindow.cpp new file mode 100644 index 0000000..8d75ddd --- /dev/null +++ b/examples/tools/customcompleter/mainwindow.cpp @@ -0,0 +1,118 @@ +/**************************************************************************** +** +** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). +** Contact: Qt Software Information (qt-info@nokia.com) +** +** This file is part of the examples of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** No Commercial Usage +** This file contains pre-release code and may not be distributed. +** You may use this file in accordance with the terms and conditions +** contained in the either Technology Preview License Agreement or the +** Beta Release License Agreement. +** +** GNU Lesser General Public License Usage +** Alternatively, this file may be used under the terms of the GNU Lesser +** General Public License version 2.1 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 2.1 requirements +** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. +** +** In addition, as a special exception, Nokia gives you certain +** additional rights. These rights are described in the Nokia Qt LGPL +** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this +** package. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 3.0 as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU General Public License version 3.0 requirements will be +** met: http://www.gnu.org/copyleft/gpl.html. +** +** If you are unsure which license is appropriate for your use, please +** contact the sales department at qt-sales@nokia.com. +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include <QtGui> +#include "mainwindow.h" +#include "textedit.h" + +//! [0] +MainWindow::MainWindow(QWidget *parent) + : QMainWindow(parent), completer(0) +{ + createMenu(); + + completingTextEdit = new TextEdit; + completer = new QCompleter(this); + completer->setModel(modelFromFile(":/resources/wordlist.txt")); + completer->setModelSorting(QCompleter::CaseInsensitivelySortedModel); + completer->setCaseSensitivity(Qt::CaseInsensitive); + completer->setWrapAround(false); + completingTextEdit->setCompleter(completer); + + setCentralWidget(completingTextEdit); + resize(500, 300); + setWindowTitle(tr("Completer")); +} +//! [0] + +//! [1] +void MainWindow::createMenu() +{ + QAction *exitAction = new QAction(tr("Exit"), this); + QAction *aboutAct = new QAction(tr("About"), this); + QAction *aboutQtAct = new QAction(tr("About Qt"), this); + + connect(exitAction, SIGNAL(triggered()), qApp, SLOT(quit())); + connect(aboutAct, SIGNAL(triggered()), this, SLOT(about())); + connect(aboutQtAct, SIGNAL(triggered()), qApp, SLOT(aboutQt())); + + QMenu* fileMenu = menuBar()->addMenu(tr("File")); + fileMenu->addAction(exitAction); + + QMenu* helpMenu = menuBar()->addMenu(tr("About")); + helpMenu->addAction(aboutAct); + helpMenu->addAction(aboutQtAct); +} +//! [1] + +//! [2] +QAbstractItemModel *MainWindow::modelFromFile(const QString& fileName) +{ + QFile file(fileName); + if (!file.open(QFile::ReadOnly)) + return new QStringListModel(completer); + +#ifndef QT_NO_CURSOR + QApplication::setOverrideCursor(QCursor(Qt::WaitCursor)); +#endif + QStringList words; + + while (!file.atEnd()) { + QByteArray line = file.readLine(); + if (!line.isEmpty()) + words << line.trimmed(); + } + +#ifndef QT_NO_CURSOR + QApplication::restoreOverrideCursor(); +#endif + return new QStringListModel(words, completer); +} +//! [2] + +//! [3] +void MainWindow::about() +{ + QMessageBox::about(this, tr("About"), tr("This example demonstrates the " + "different features of the QCompleter class.")); +} +//! [3] + diff --git a/examples/tools/customcompleter/mainwindow.h b/examples/tools/customcompleter/mainwindow.h new file mode 100644 index 0000000..77089c2 --- /dev/null +++ b/examples/tools/customcompleter/mainwindow.h @@ -0,0 +1,77 @@ +/**************************************************************************** +** +** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). +** Contact: Qt Software Information (qt-info@nokia.com) +** +** This file is part of the examples of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** No Commercial Usage +** This file contains pre-release code and may not be distributed. +** You may use this file in accordance with the terms and conditions +** contained in the either Technology Preview License Agreement or the +** Beta Release License Agreement. +** +** GNU Lesser General Public License Usage +** Alternatively, this file may be used under the terms of the GNU Lesser +** General Public License version 2.1 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 2.1 requirements +** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. +** +** In addition, as a special exception, Nokia gives you certain +** additional rights. These rights are described in the Nokia Qt LGPL +** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this +** package. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 3.0 as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU General Public License version 3.0 requirements will be +** met: http://www.gnu.org/copyleft/gpl.html. +** +** If you are unsure which license is appropriate for your use, please +** contact the sales department at qt-sales@nokia.com. +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef MAINWINDOW_H +#define MAINWINDOW_H + +#include <QMainWindow> + +QT_BEGIN_NAMESPACE +class QAbstractItemModel; +class QComboBox; +class QCompleter; +class QLabel; +class QLineEdit; +class QProgressBar; +QT_END_NAMESPACE +class TextEdit; + +//! [0] +class MainWindow : public QMainWindow +{ + Q_OBJECT + +public: + MainWindow(QWidget *parent = 0); + +private slots: + void about(); + +private: + void createMenu(); + QAbstractItemModel *modelFromFile(const QString& fileName); + + QCompleter *completer; + TextEdit *completingTextEdit; +}; +//! [0] + +#endif // MAINWINDOW_H diff --git a/examples/tools/customcompleter/resources/wordlist.txt b/examples/tools/customcompleter/resources/wordlist.txt new file mode 100644 index 0000000..a5de826 --- /dev/null +++ b/examples/tools/customcompleter/resources/wordlist.txt @@ -0,0 +1,1455 @@ +A4 +able +about +above +absence +absolutely +abstract +access +according +accumulated +achieve +achieving +activity +acts +actual +actually +add +added +adding +addition +additionally +additions +addresses +adjust +adjustments +advanced +advice +after +afterwards +again +agenda +aim +algorithm +all +allocated +allow +allowed +allowing +allows +along +alpha +already +also +alternative +alternatively +although +American +an +and +announced +annoy +another +answer +answers +any +anything +anyway +apart +API +appear +appears +appendices +appendix +appends +application +applications +apply +approach +approaches +appropriate +Arabic +arbitrary +are +areas +ARGB +argument +arguments +around +arrangements 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0000000..ecafa8f --- /dev/null +++ b/examples/tools/customcompleter/textedit.cpp @@ -0,0 +1,174 @@ +/**************************************************************************** +** +** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). +** Contact: Qt Software Information (qt-info@nokia.com) +** +** This file is part of the examples of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** No Commercial Usage +** This file contains pre-release code and may not be distributed. +** You may use this file in accordance with the terms and conditions +** contained in the either Technology Preview License Agreement or the +** Beta Release License Agreement. +** +** GNU Lesser General Public License Usage +** Alternatively, this file may be used under the terms of the GNU Lesser +** General Public License version 2.1 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 2.1 requirements +** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. +** +** In addition, as a special exception, Nokia gives you certain +** additional rights. These rights are described in the Nokia Qt LGPL +** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this +** package. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 3.0 as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU General Public License version 3.0 requirements will be +** met: http://www.gnu.org/copyleft/gpl.html. +** +** If you are unsure which license is appropriate for your use, please +** contact the sales department at qt-sales@nokia.com. +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "textedit.h" +#include <QCompleter> +#include <QKeyEvent> +#include <QAbstractItemView> +#include <QtDebug> +#include <QApplication> +#include <QModelIndex> +#include <QAbstractItemModel> +#include <QScrollBar> + +//! [0] +TextEdit::TextEdit(QWidget *parent) +: QTextEdit(parent), c(0) +{ + setPlainText(tr("This TextEdit provides autocompletions for words that have more than" + " 3 characters. You can trigger autocompletion using ") + + QKeySequence("Ctrl+E").toString(QKeySequence::NativeText)); +} +//! [0] + +//! [1] +TextEdit::~TextEdit() +{ +} +//! [1] + +//! [2] +void TextEdit::setCompleter(QCompleter *completer) +{ + if (c) + QObject::disconnect(c, 0, this, 0); + + c = completer; + + if (!c) + return; + + c->setWidget(this); + c->setCompletionMode(QCompleter::PopupCompletion); + c->setCaseSensitivity(Qt::CaseInsensitive); + QObject::connect(c, SIGNAL(activated(const QString&)), + this, SLOT(insertCompletion(const QString&))); +} +//! [2] + +//! [3] +QCompleter *TextEdit::completer() const +{ + return c; +} +//! [3] + +//! [4] +void TextEdit::insertCompletion(const QString& completion) +{ + if (c->widget() != this) + return; + QTextCursor tc = textCursor(); + int extra = completion.length() - c->completionPrefix().length(); + tc.movePosition(QTextCursor::Left); + tc.movePosition(QTextCursor::EndOfWord); + tc.insertText(completion.right(extra)); + setTextCursor(tc); +} +//! [4] + +//! [5] +QString TextEdit::textUnderCursor() const +{ + QTextCursor tc = textCursor(); + tc.select(QTextCursor::WordUnderCursor); + return tc.selectedText(); +} +//! [5] + +//! [6] +void TextEdit::focusInEvent(QFocusEvent *e) +{ + if (c) + c->setWidget(this); + QTextEdit::focusInEvent(e); +} +//! [6] + +//! [7] +void TextEdit::keyPressEvent(QKeyEvent *e) +{ + if (c && c->popup()->isVisible()) { + // The following keys are forwarded by the completer to the widget + switch (e->key()) { + case Qt::Key_Enter: + case Qt::Key_Return: + case Qt::Key_Escape: + case Qt::Key_Tab: + case Qt::Key_Backtab: + e->ignore(); + return; // let the completer do default behavior + default: + break; + } + } + + bool isShortcut = ((e->modifiers() & Qt::ControlModifier) && e->key() == Qt::Key_E); // CTRL+E + if (!c || !isShortcut) // dont process the shortcut when we have a completer + QTextEdit::keyPressEvent(e); +//! [7] + +//! [8] + const bool ctrlOrShift = e->modifiers() & (Qt::ControlModifier | Qt::ShiftModifier); + if (!c || (ctrlOrShift && e->text().isEmpty())) + return; + + static QString eow("~!@#$%^&*()_+{}|:\"<>?,./;'[]\\-="); // end of word + bool hasModifier = (e->modifiers() != Qt::NoModifier) && !ctrlOrShift; + QString completionPrefix = textUnderCursor(); + + if (!isShortcut && (hasModifier || e->text().isEmpty()|| completionPrefix.length() < 3 + || eow.contains(e->text().right(1)))) { + c->popup()->hide(); + return; + } + + if (completionPrefix != c->completionPrefix()) { + c->setCompletionPrefix(completionPrefix); + c->popup()->setCurrentIndex(c->completionModel()->index(0, 0)); + } + QRect cr = cursorRect(); + cr.setWidth(c->popup()->sizeHintForColumn(0) + + c->popup()->verticalScrollBar()->sizeHint().width()); + c->complete(cr); // popup it up! +} +//! [8] + diff --git a/examples/tools/customcompleter/textedit.h b/examples/tools/customcompleter/textedit.h new file mode 100644 index 0000000..d727228 --- /dev/null +++ b/examples/tools/customcompleter/textedit.h @@ -0,0 +1,79 @@ +/**************************************************************************** +** +** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). +** Contact: Qt Software Information (qt-info@nokia.com) +** +** This file is part of the examples of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** No Commercial Usage +** This file contains pre-release code and may not be distributed. +** You may use this file in accordance with the terms and conditions +** contained in the either Technology Preview License Agreement or the +** Beta Release License Agreement. +** +** GNU Lesser General Public License Usage +** Alternatively, this file may be used under the terms of the GNU Lesser +** General Public License version 2.1 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 2.1 requirements +** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. +** +** In addition, as a special exception, Nokia gives you certain +** additional rights. These rights are described in the Nokia Qt LGPL +** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this +** package. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 3.0 as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU General Public License version 3.0 requirements will be +** met: http://www.gnu.org/copyleft/gpl.html. +** +** If you are unsure which license is appropriate for your use, please +** contact the sales department at qt-sales@nokia.com. +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef TEXTEDIT_H +#define TEXTEDIT_H + +#include <QTextEdit> + +QT_BEGIN_NAMESPACE +class QCompleter; +QT_END_NAMESPACE + +//! [0] +class TextEdit : public QTextEdit +{ + Q_OBJECT + +public: + TextEdit(QWidget *parent = 0); + ~TextEdit(); + + void setCompleter(QCompleter *c); + QCompleter *completer() const; + +protected: + void keyPressEvent(QKeyEvent *e); + void focusInEvent(QFocusEvent *e); + +private slots: + void insertCompletion(const QString &completion); + +private: + QString textUnderCursor() const; + +private: + QCompleter *c; +}; +//! [0] + +#endif // TEXTEDIT_H + |