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Diffstat (limited to 'doc/src/snippets/textdocument-listitems/mainwindow.cpp')
| -rw-r--r-- | doc/src/snippets/textdocument-listitems/mainwindow.cpp | 198 |
1 files changed, 198 insertions, 0 deletions
diff --git a/doc/src/snippets/textdocument-listitems/mainwindow.cpp b/doc/src/snippets/textdocument-listitems/mainwindow.cpp new file mode 100644 index 0000000..85ce524 --- /dev/null +++ b/doc/src/snippets/textdocument-listitems/mainwindow.cpp @@ -0,0 +1,198 @@ +/**************************************************************************** +** +** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). +** Contact: Qt Software Information (qt-info@nokia.com) +** +** This file is part of the documentation 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" + +MainWindow::MainWindow() +{ + QMenu *fileMenu = new QMenu(tr("&File")); + + fileMenu->addAction(tr("E&xit"), this, SLOT(close()), + QKeySequence(tr("Ctrl+Q", "File|Exit"))); + + QMenu *actionsMenu = new QMenu(tr("&Actions")); + actionsMenu->addAction(tr("&Highlight List Items"), + this, SLOT(highlightListItems())); + actionsMenu->addAction(tr("&Show Current List"), this, SLOT(showList())); + + QMenu *insertMenu = new QMenu(tr("&Insert")); + + insertMenu->addAction(tr("&List"), this, SLOT(insertList()), + QKeySequence(tr("Ctrl+L", "Insert|List"))); + + menuBar()->addMenu(fileMenu); + menuBar()->addMenu(insertMenu); + menuBar()->addMenu(actionsMenu); + + editor = new QTextEdit(this); + document = new QTextDocument(this); + editor->setDocument(document); + + setCentralWidget(editor); + setWindowTitle(tr("Text Document List Items")); +} + +void MainWindow::highlightListItems() +{ + QTextCursor cursor = editor->textCursor(); + QTextList *list = cursor.currentList(); + + if (!list) + return; + + cursor.beginEditBlock(); +//! [0] + for (int index = 0; index < list->count(); ++index) { + QTextBlock listItem = list->item(index); +//! [0] + QTextBlockFormat newBlockFormat = listItem.blockFormat(); + newBlockFormat.setBackground(Qt::lightGray); + QTextCursor itemCursor = cursor; + itemCursor.setPosition(listItem.position()); + //itemCursor.movePosition(QTextCursor::StartOfBlock); + itemCursor.movePosition(QTextCursor::EndOfBlock, + QTextCursor::KeepAnchor); + itemCursor.setBlockFormat(newBlockFormat); + /* +//! [1] + processListItem(listItem); +//! [1] + */ +//! [2] + } +//! [2] + cursor.endEditBlock(); +} + +void MainWindow::showList() +{ + QTextCursor cursor = editor->textCursor(); + QTextFrame *frame = cursor.currentFrame(); + + if (!frame) + return; + + QTreeWidget *treeWidget = new QTreeWidget; + treeWidget->setColumnCount(1); + QStringList headerLabels; + headerLabels << tr("Lists"); + treeWidget->setHeaderLabels(headerLabels); + + QTreeWidgetItem *parentItem = 0; + QTreeWidgetItem *item; + QTreeWidgetItem *lastItem = 0; + parentItems.clear(); + previousItems.clear(); + +//! [3] + QTextFrame::iterator it; + for (it = frame->begin(); !(it.atEnd()); ++it) { + + QTextBlock block = it.currentBlock(); + + if (block.isValid()) { + + QTextList *list = block.textList(); + + if (list) { + int index = list->itemNumber(block); +//! [3] + if (index == 0) { + parentItems.append(parentItem); + previousItems.append(lastItem); + listStructures.append(list); + parentItem = lastItem; + lastItem = 0; + + if (parentItem != 0) + item = new QTreeWidgetItem(parentItem, lastItem); + else + item = new QTreeWidgetItem(treeWidget, lastItem); + + } else { + + while (parentItem != 0 && listStructures.last() != list) { + listStructures.pop_back(); + parentItem = parentItems.takeLast(); + lastItem = previousItems.takeLast(); + } + if (parentItem != 0) + item = new QTreeWidgetItem(parentItem, lastItem); + else + item = new QTreeWidgetItem(treeWidget, lastItem); + } + item->setText(0, block.text()); + lastItem = item; + /* +//! [4] + processListItem(list, index); +//! [4] + */ +//! [5] + } +//! [5] //! [6] + } +//! [6] //! [7] + } +//! [7] + + treeWidget->setWindowTitle(tr("List Contents")); + treeWidget->show(); +} + +void MainWindow::insertList() +{ + QTextCursor cursor = editor->textCursor(); + cursor.beginEditBlock(); + + QTextList *list = cursor.currentList(); + QTextListFormat listFormat; + if (list) + listFormat = list->format(); + + listFormat.setStyle(QTextListFormat::ListDisc); + listFormat.setIndent(listFormat.indent() + 1); + cursor.insertList(listFormat); + + cursor.endEditBlock(); +} |