--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/examples/tools/completer/mainwindow.cpp Mon Jan 11 14:00:40 2010 +0000
@@ -0,0 +1,280 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (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 Technology Preview License Agreement accompanying
+** this package.
+**
+** 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 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <QtGui>
+#include "dirmodel.h"
+#include "mainwindow.h"
+
+//! [0]
+MainWindow::MainWindow(QWidget *parent)
+ : QMainWindow(parent), completer(0), lineEdit(0)
+{
+ createMenu();
+
+ QWidget *centralWidget = new QWidget;
+
+ QLabel *modelLabel = new QLabel;
+ modelLabel->setText(tr("Model"));
+
+ modelCombo = new QComboBox;
+ modelCombo->addItem(tr("QDirModel"));
+ modelCombo->addItem(tr("QDirModel that shows full path"));
+ modelCombo->addItem(tr("Country list"));
+ modelCombo->addItem(tr("Word list"));
+ modelCombo->setCurrentIndex(0);
+
+ QLabel *modeLabel = new QLabel;
+ modeLabel->setText(tr("Completion Mode"));
+ modeCombo = new QComboBox;
+ modeCombo->addItem(tr("Inline"));
+ modeCombo->addItem(tr("Filtered Popup"));
+ modeCombo->addItem(tr("Unfiltered Popup"));
+ modeCombo->setCurrentIndex(1);
+
+ QLabel *caseLabel = new QLabel;
+ caseLabel->setText(tr("Case Sensitivity"));
+ caseCombo = new QComboBox;
+ caseCombo->addItem(tr("Case Insensitive"));
+ caseCombo->addItem(tr("Case Sensitive"));
+ caseCombo->setCurrentIndex(0);
+//! [0]
+
+//! [1]
+ QLabel *maxVisibleLabel = new QLabel;
+ maxVisibleLabel->setText(tr("Max Visible Items"));
+ maxVisibleSpinBox = new QSpinBox;
+ maxVisibleSpinBox->setRange(3,25);
+ maxVisibleSpinBox->setValue(10);
+
+ wrapCheckBox = new QCheckBox;
+ wrapCheckBox->setText(tr("Wrap around completions"));
+ wrapCheckBox->setChecked(true);
+//! [1]
+
+//! [2]
+ contentsLabel = new QLabel;
+ contentsLabel->setSizePolicy(QSizePolicy::Fixed, QSizePolicy::Fixed);
+
+ connect(modelCombo, SIGNAL(activated(int)), this, SLOT(changeModel()));
+ connect(modeCombo, SIGNAL(activated(int)), this, SLOT(changeMode(int)));
+ connect(caseCombo, SIGNAL(activated(int)), this, SLOT(changeCase(int)));
+ connect(maxVisibleSpinBox, SIGNAL(valueChanged(int)), this, SLOT(changeMaxVisible(int)));
+//! [2]
+
+//! [3]
+ lineEdit = new QLineEdit;
+
+ QGridLayout *layout = new QGridLayout;
+ layout->addWidget(modelLabel, 0, 0); layout->addWidget(modelCombo, 0, 1);
+ layout->addWidget(modeLabel, 1, 0); layout->addWidget(modeCombo, 1, 1);
+ layout->addWidget(caseLabel, 2, 0); layout->addWidget(caseCombo, 2, 1);
+ layout->addWidget(maxVisibleLabel, 3, 0); layout->addWidget(maxVisibleSpinBox, 3, 1);
+ layout->addWidget(wrapCheckBox, 4, 0);
+ layout->addWidget(contentsLabel, 5, 0, 1, 2);
+ layout->addWidget(lineEdit, 6, 0, 1, 2);
+ centralWidget->setLayout(layout);
+ setCentralWidget(centralWidget);
+
+ changeModel();
+
+ setWindowTitle(tr("Completer"));
+ lineEdit->setFocus();
+}
+//! [3]
+
+//! [4]
+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);
+}
+//! [4]
+
+//! [5]
+QAbstractItemModel *MainWindow::modelFromFile(const QString& fileName)
+{
+ QFile file(fileName);
+ if (!file.open(QFile::ReadOnly))
+ return new QStringListModel(completer);
+//! [5]
+
+//! [6]
+#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
+//! [6]
+
+//! [7]
+ if (!fileName.contains(QLatin1String("countries.txt")))
+ return new QStringListModel(words, completer);
+//! [7]
+
+ // The last two chars of the countries.txt file indicate the country
+ // symbol. We put that in column 2 of a standard item model
+//! [8]
+ QStandardItemModel *m = new QStandardItemModel(words.count(), 2, completer);
+//! [8] //! [9]
+ for (int i = 0; i < words.count(); ++i) {
+ QModelIndex countryIdx = m->index(i, 0);
+ QModelIndex symbolIdx = m->index(i, 1);
+ QString country = words[i].mid(0, words[i].length() - 2).trimmed();
+ QString symbol = words[i].right(2);
+ m->setData(countryIdx, country);
+ m->setData(symbolIdx, symbol);
+ }
+
+ return m;
+}
+//! [9]
+
+//! [10]
+void MainWindow::changeMode(int index)
+{
+ QCompleter::CompletionMode mode;
+ if (index == 0)
+ mode = QCompleter::InlineCompletion;
+ else if (index == 1)
+ mode = QCompleter::PopupCompletion;
+ else
+ mode = QCompleter::UnfilteredPopupCompletion;
+
+ completer->setCompletionMode(mode);
+}
+//! [10]
+
+void MainWindow::changeCase(int cs)
+{
+ completer->setCaseSensitivity(cs ? Qt::CaseSensitive : Qt::CaseInsensitive);
+}
+
+//! [11]
+void MainWindow::changeModel()
+{
+ delete completer;
+ completer = new QCompleter(this);
+ completer->setMaxVisibleItems(maxVisibleSpinBox->value());
+
+ switch (modelCombo->currentIndex()) {
+ default:
+ case 0:
+ { // Unsorted QDirModel
+ QDirModel *dirModel = new QDirModel(completer);
+ completer->setModel(dirModel);
+ contentsLabel->setText(tr("Enter file path"));
+ }
+ break;
+//! [11] //! [12]
+ case 1:
+ { // DirModel that shows full paths
+ DirModel *dirModel = new DirModel(completer);
+ completer->setModel(dirModel);
+ contentsLabel->setText(tr("Enter file path"));
+ }
+ break;
+//! [12] //! [13]
+ case 2:
+ { // Country List
+ completer->setModel(modelFromFile(":/resources/countries.txt"));
+ QTreeView *treeView = new QTreeView;
+ completer->setPopup(treeView);
+ treeView->setRootIsDecorated(false);
+ treeView->header()->hide();
+ treeView->header()->setStretchLastSection(false);
+ treeView->header()->setResizeMode(0, QHeaderView::Stretch);
+ treeView->header()->setResizeMode(1, QHeaderView::ResizeToContents);
+ contentsLabel->setText(tr("Enter name of your country"));
+ }
+ break;
+//! [13] //! [14]
+ case 3:
+ { // Word list
+ completer->setModel(modelFromFile(":/resources/wordlist.txt"));
+ completer->setModelSorting(QCompleter::CaseInsensitivelySortedModel);
+ contentsLabel->setText(tr("Enter a word"));
+ }
+ break;
+ }
+
+ changeMode(modeCombo->currentIndex());
+ changeCase(caseCombo->currentIndex());
+ completer->setWrapAround(wrapCheckBox->isChecked());
+ lineEdit->setCompleter(completer);
+ connect(wrapCheckBox, SIGNAL(clicked(bool)), completer, SLOT(setWrapAround(bool)));
+}
+//! [14]
+
+//! [15]
+void MainWindow::changeMaxVisible(int max)
+{
+ completer->setMaxVisibleItems(max);
+}
+//! [15]
+
+//! [16]
+void MainWindow::about()
+{
+ QMessageBox::about(this, tr("About"), tr("This example demonstrates the "
+ "different features of the QCompleter class."));
+}
+//! [16]