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authorQt by Nokia <qt-info@nokia.com>2011-04-27 12:05:43 +0200
committeraxis <qt-info@nokia.com>2011-04-27 12:05:43 +0200
commit885735d011472bcfbb96e688d9e64553d7fe9d4b (patch)
tree734963625eba643bf11bc4870a4c407809a6400a /examples/tutorials/gettingStarted/gsQml/filedialog/directory.cpp
Initial import from the monolithic Qt.
This is the beginning of revision history for this module. If you want to look at revision history older than this, please refer to the Qt Git wiki for how to use Git history grafting. At the time of writing, this wiki is located here: http://qt.gitorious.org/qt/pages/GitIntroductionWithQt If you have already performed the grafting and you don't see any history beyond this commit, try running "git log" with the "--follow" argument. Branched from the monolithic repo, Qt master branch, at commit 896db169ea224deb96c59ce8af800d019de63f12
Diffstat (limited to 'examples/tutorials/gettingStarted/gsQml/filedialog/directory.cpp')
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diff --git a/examples/tutorials/gettingStarted/gsQml/filedialog/directory.cpp b/examples/tutorials/gettingStarted/gsQml/filedialog/directory.cpp
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+/****************************************************************************
+**
+** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the QtDeclarative 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 Nokia Corporation 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(QDeclarativeListProperty<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(QDeclarativeListProperty<File> * property, int index)
+{
+ return static_cast< QList<File *> *>(property->data)->at(index);
+}
+
+/*
+Returns the number of files in the list
+*/
+int filesSize(QDeclarativeListProperty<File> * property)
+{
+ return static_cast< QList<File *> *>(property->data)->size();
+}
+
+/*
+Function called to empty the list property contents
+*/
+void clearFilesPtr(QDeclarativeListProperty<File> *property)
+{
+ return static_cast< QList<File *> *>(property->data)->clear();
+}
+
+/*
+Returns the list of files as a QDeclarativeListProperty.
+*/
+QDeclarativeListProperty<File> Directory::files()
+{
+ refresh();
+ return QDeclarativeListProperty<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().size() == 0){
+ 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);
+
+ QString line;
+ do {
+ line = inStream.read(75);
+ m_fileContent.append(line);
+ } while ( !line.isNull() ) ;
+ }
+ 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);
+ }
+} \ No newline at end of file