From 97fcf3bc987a18f32233fea550eb4a5a22e2b822 Mon Sep 17 00:00:00 2001 From: Paul Olav Tvete Date: Mon, 4 Mar 2013 10:16:42 +0100 Subject: Introducing the Qt Android port MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Based on the Necessitas project by Bogdan Vatra. Contributors to the Qt5 project: BogDan Vatra Eskil Abrahamsen Blomfeldt hjk Oswald Buddenhagen Paul Olav Tvete Robin Burchell Samuel Rødal Yoann Lopes The full history of the Qt5 port can be found in refs/old-heads/android, SHA-1 249ca9ca2c7d876b91b31df9434dde47f9065d0d Change-Id: Iff1a7b2dbb707c986f2639e65e39ed8f22430120 Reviewed-by: Oswald Buddenhagen Reviewed-by: Lars Knoll --- .../src/qandroidassetsfileenginehandler.cpp | 288 +++++++++++++++++++++ 1 file changed, 288 insertions(+) create mode 100644 src/plugins/platforms/android/src/qandroidassetsfileenginehandler.cpp (limited to 'src/plugins/platforms/android/src/qandroidassetsfileenginehandler.cpp') diff --git a/src/plugins/platforms/android/src/qandroidassetsfileenginehandler.cpp b/src/plugins/platforms/android/src/qandroidassetsfileenginehandler.cpp new file mode 100644 index 0000000000..f3cb2586cc --- /dev/null +++ b/src/plugins/platforms/android/src/qandroidassetsfileenginehandler.cpp @@ -0,0 +1,288 @@ +/**************************************************************************** +** +** Copyright (C) 2012 BogDan Vatra +** Contact: http://www.qt-project.org/legal +** +** This file is part of the plugins of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** Commercial License Usage +** Licensees holding valid commercial Qt licenses may use this file in +** accordance with the commercial license agreement provided with the +** Software or, alternatively, in accordance with the terms contained in +** a written agreement between you and Digia. For licensing terms and +** conditions see http://qt.digia.com/licensing. For further information +** use the contact form at http://qt.digia.com/contact-us. +** +** 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, Digia gives you certain additional +** rights. These rights are described in the Digia Qt LGPL Exception +** version 1.1, 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. +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "qandroidassetsfileenginehandler.h" +#include "androidjnimain.h" + +#include + +class AndroidAbstractFileEngineIterator: public QAbstractFileEngineIterator +{ +public: + AndroidAbstractFileEngineIterator(QDir::Filters filters, + const QStringList &nameFilters, + AAssetDir *asset, + const QString &path) + : QAbstractFileEngineIterator(filters, nameFilters) + { + AAssetDir_rewind(asset); + const char *fileName; + while ((fileName = AAssetDir_getNextFileName(asset))) + m_items << fileName; + m_index = -1; + m_path = path; + } + + virtual QFileInfo currentFileInfo() const + { + return QFileInfo(currentFilePath()); + } + + virtual QString currentFileName() const + { + if (m_index < 0 || m_index >= m_items.size()) + return QString(); + return m_items[m_index]; + } + + virtual QString currentFilePath() const + { + return m_path + currentFileName(); + } + + virtual bool hasNext() const + { + return m_items.size() && (m_index < m_items.size() - 1); + } + + virtual QString next() + { + if (!hasNext()) + return QString(); + m_index++; + return currentFileName(); + } + +private: + QString m_path; + QStringList m_items; + int m_index; +}; + +class AndroidAbstractFileEngine: public QAbstractFileEngine +{ +public: + explicit AndroidAbstractFileEngine(AAsset *asset, const QString &fileName) + { + m_assetDir = 0; + m_assetFile = asset; + m_fileName = fileName; + } + + explicit AndroidAbstractFileEngine(AAssetDir *asset, const QString &fileName) + { + m_assetFile = 0; + m_assetDir = asset; + m_fileName = fileName; + if (!m_fileName.endsWith(QChar(QLatin1Char('/')))) + m_fileName += "/"; + } + + ~AndroidAbstractFileEngine() + { + close(); + if (m_assetDir) + AAssetDir_close(m_assetDir); + } + + virtual bool open(QIODevice::OpenMode openMode) + { + if (m_assetFile) + return openMode & QIODevice::ReadOnly; + return false; + } + + virtual bool close() + { + if (m_assetFile) { + AAsset_close(m_assetFile); + m_assetFile = 0; + return true; + } + return false; + } + + virtual qint64 size() const + { + if (m_assetFile) + return AAsset_getLength(m_assetFile); + return -1; + } + + virtual qint64 pos() const + { + if (m_assetFile) + return AAsset_seek(m_assetFile, 0, SEEK_CUR); + return -1; + } + + virtual bool seek(qint64 pos) + { + if (m_assetFile) + return pos == AAsset_seek(m_assetFile, pos, SEEK_SET); + return false; + } + + virtual qint64 read(char *data, qint64 maxlen) + { + if (m_assetFile) + return AAsset_read(m_assetFile, data, maxlen); + return -1; + } + + virtual bool isSequential() const + { + return false; + } + + virtual bool caseSensitive() const + { + return true; + } + + virtual bool isRelativePath() const + { + return false; + } + + virtual FileFlags fileFlags(FileFlags type = FileInfoAll) const + { + FileFlags flags(ReadOwnerPerm|ReadUserPerm|ReadGroupPerm|ReadOtherPerm|ExistsFlag); + if (m_assetFile) + flags |= FileType; + if (m_assetDir) + flags |= DirectoryType; + + return type & flags; + } + + virtual QString fileName(FileName file = DefaultName) const + { + int pos; + switch (file) { + case DefaultName: + case AbsoluteName: + case CanonicalName: + return m_fileName; + case BaseName: + if ((pos = m_fileName.lastIndexOf(QChar(QLatin1Char('/')))) != -1) + return m_fileName.mid(pos); + else + return m_fileName; + case PathName: + case AbsolutePathName: + case CanonicalPathName: + if ((pos = m_fileName.lastIndexOf(QChar(QLatin1Char('/')))) != -1) + return m_fileName.left(pos); + else + return m_fileName; + default: + return QString(); + } + } + + virtual void setFileName(const QString &file) + { + if (file == m_fileName) + return; + + m_fileName = file; + if (!m_fileName.endsWith(QChar(QLatin1Char('/')))) + m_fileName += "/"; + + close(); + } + + virtual Iterator *beginEntryList(QDir::Filters filters, const QStringList &filterNames) + { + if (m_assetDir) + return new AndroidAbstractFileEngineIterator(filters, filterNames, m_assetDir, m_fileName); + return 0; + } + +private: + AAsset *m_assetFile; + AAssetDir *m_assetDir; + QString m_fileName; +}; + + +AndroidAssetsFileEngineHandler::AndroidAssetsFileEngineHandler() +{ + m_assetManager = QtAndroid::assetManager(); +} + +AndroidAssetsFileEngineHandler::~AndroidAssetsFileEngineHandler() +{ +} + +QAbstractFileEngine * AndroidAssetsFileEngineHandler::create(const QString &fileName) const +{ + if (fileName.isEmpty()) + return 0; + + if (!fileName.startsWith(QLatin1String("assets:/"))) + return 0; + + int prefixSize=8; + + m_path.clear(); + if (!fileName.endsWith(QLatin1Char('/'))) { + m_path = fileName.toUtf8(); + AAsset *asset = AAssetManager_open(m_assetManager, + m_path.constData() + prefixSize, + AASSET_MODE_BUFFER); + if (asset) + return new AndroidAbstractFileEngine(asset, fileName); + } + + if (!m_path.size()) + m_path = fileName.left(fileName.length() - 1).toUtf8(); + + AAssetDir *assetDir = AAssetManager_openDir(m_assetManager, m_path.constData() + prefixSize); + if (assetDir) { + if (AAssetDir_getNextFileName(assetDir)) + return new AndroidAbstractFileEngine(assetDir, fileName); + else + AAssetDir_close(assetDir); + } + return 0; +} -- cgit v1.2.3