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Diffstat (limited to 'examples/quick/tutorials/gettingStartedQml/filedialog/directory.cpp')
-rw-r--r-- | examples/quick/tutorials/gettingStartedQml/filedialog/directory.cpp | 218 |
1 files changed, 218 insertions, 0 deletions
diff --git a/examples/quick/tutorials/gettingStartedQml/filedialog/directory.cpp b/examples/quick/tutorials/gettingStartedQml/filedialog/directory.cpp new file mode 100644 index 0000000000..38a47f0431 --- /dev/null +++ b/examples/quick/tutorials/gettingStartedQml/filedialog/directory.cpp @@ -0,0 +1,218 @@ +/**************************************************************************** +** +** Copyright (C) 2012 Digia Plc and/or its subsidiary(-ies). +** Contact: http://www.qt-project.org/legal +** +** This file is part of the QtQml module of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:BSD$ +** You may use this file under the terms of the BSD license as follows: +** +** "Redistribution and use in source and binary forms, with or without +** modification, are permitted provided that the following conditions are +** met: +** * Redistributions of source code must retain the above copyright +** notice, this list of conditions and the following disclaimer. +** * Redistributions in binary form must reproduce the above copyright +** notice, this list of conditions and the following disclaimer in +** the documentation and/or other materials provided with the +** distribution. +** * Neither the name of Digia Plc and its Subsidiary(-ies) nor the names +** of its contributors may be used to endorse or promote products derived +** from this software without specific prior written permission. +** +** +** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "directory.h" +#include <QDebug> + +/* +Directory constructor + +Initialize the saves directory and creates the file list +*/ +Directory::Directory(QObject *parent) : QObject(parent) +{ + m_dir.cd(QDir::currentPath()); + + // go to the saved directory. if not found, create save directory + m_saveDir = "saves"; + if (m_dir.cd(m_saveDir) == 0) { + m_dir.mkdir(m_saveDir); + m_dir.cd(m_saveDir); + } + m_filterList << "*.txt"; + refresh(); +} + +/* +Directory::filesNumber +Return the number of Files +*/ +int Directory::filesCount() const +{ + return m_fileList.size(); +} + +/* +Function called to append data onto list property +*/ +void appendFiles(QQmlListProperty<File> *property, File *file) +{ + Q_UNUSED(property); + Q_UNUSED(file); + //Do nothing. can't add to a directory using this method +} + +/* +Function called to retrieve file in the list using an index +*/ +File *fileAt(QQmlListProperty<File> *property, int index) +{ + return static_cast< QList<File *> *>(property->data)->at(index); +} + +/* +Returns the number of files in the list +*/ +int filesSize(QQmlListProperty<File> *property) +{ + return static_cast< QList<File *> *>(property->data)->size(); +} + +/* +Function called to empty the list property contents +*/ +void clearFilesPtr(QQmlListProperty<File> *property) +{ + return static_cast< QList<File *> *>(property->data)->clear(); +} + +/* +Returns the list of files as a QQmlListProperty. +*/ +QQmlListProperty<File> Directory::files() +{ + refresh(); + return QQmlListProperty<File>(this, &m_fileList, &appendFiles, &filesSize, &fileAt, &clearFilesPtr); +} + +/* +Return the name of the currently selected file +*/ +QString Directory::filename() const +{ + return currentFile.name(); +} + +/* +Return the file's content as a string. +*/ +QString Directory::fileContent() const +{ + return m_fileContent; +} + +/* +Set the file name of the current file +*/ +void Directory::setFilename(const QString &str) +{ + if (str != currentFile.name()) { + currentFile.setName(str); + emit filenameChanged(); + } +} + +/* +Set the content of the file as a string +*/ +void Directory::setFileContent(const QString &str) +{ + if (str != m_fileContent) { + m_fileContent = str; + emit fileContentChanged(); + } +} + +/* +Called from QML to save the file using the filename and file content. +Saving makes sure that the file has a .txt extension. +*/ +void Directory::saveFile() +{ + if (currentFile.name().isEmpty()) { + qWarning()<< "Empty filename. no save"; + return; + } + QString extendedName = currentFile.name(); + if (!currentFile.name().endsWith(".txt")) { + extendedName.append(".txt"); + } + QFile file(m_dir.filePath(extendedName)); + if (file.open(QFile::WriteOnly | QFile::Truncate)) { + QTextStream outStream(&file); + outStream << m_fileContent; + } + file.close(); + refresh(); + emit directoryChanged(); +} + +/* +Load the contents of a file. +Only loads files with a .txt extension +*/ +void Directory::loadFile() +{ + m_fileContent.clear(); + QString extendedName = currentFile.name(); + if (!currentFile.name().endsWith(".txt")) { + extendedName.append(".txt"); + } + + QFile file(m_dir.filePath(extendedName)); + if (file.open(QFile::ReadOnly)) { + QTextStream inStream(&file); + m_fileContent = inStream.readAll(); + } + file.close(); +} + +/* +Reloads the content of the files list. This is to ensure that the newly +created files are added onto the list. +*/ +void Directory::refresh() +{ + m_dirFiles = m_dir.entryList(m_filterList,QDir::Files,QDir::Name); + m_fileList.clear(); + + File *file; + for (int i = 0; i < m_dirFiles.size(); ++i) { + file = new File(); + + if (m_dirFiles.at(i).endsWith(".txt")) { + QString name = m_dirFiles.at(i); + file->setName(name.remove(".txt",Qt::CaseSensitive)); + } else { + file->setName(m_dirFiles.at(i)); + } + m_fileList.append(file); + } +} |