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Diffstat (limited to 'superkaramba/src/themefile.cpp')
| -rw-r--r-- | superkaramba/src/themefile.cpp | 414 |
1 files changed, 414 insertions, 0 deletions
diff --git a/superkaramba/src/themefile.cpp b/superkaramba/src/themefile.cpp new file mode 100644 index 0000000..ac02e2f --- /dev/null +++ b/superkaramba/src/themefile.cpp @@ -0,0 +1,414 @@ +/**************************************************************************** +* themefile.cpp - Theme file handling +* +* Copyright (C) 2003 Hans Karlsson <karlsson.h@home.se> +* Copyright (C) 2003-2004 Adam Geitgey <adam@rootnode.org> +* Copyright (c) 2004 Petri Damst� <damu@iki.fi> +* +* This file is part of SuperKaramba. +* +* SuperKaramba is free software; you can redistribute it and/or modify +* it under the terms of the GNU General Public License as published by +* the Free Software Foundation; either version 2 of the License, or +* (at your option) any later version. +* +* SuperKaramba is distributed in the hope that it will be useful, +* but WITHOUT ANY WARRANTY; without even the implied warranty of +* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +* GNU General Public License for more details. +* +* You should have received a copy of the GNU General Public License +* along with SuperKaramba; if not, write to the Free Software +* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA +****************************************************************************/ +#include "themefile.h" +#include "lineparser.h" +#include "themelocale.h" +#include <kdebug.h> +#include <kurl.h> +#include <kzip.h> +#include <kapplication.h> +#include <kmessagebox.h> +#include <kstandarddirs.h> +#include <klocale.h> +#include <kio/netaccess.h> +#include <qtextstream.h> +#include <qfileinfo.h> +#include <qdom.h> +#include <qdir.h> + +class ZipFile +{ + public: + ZipFile() : + m_zip(0), m_file(0) + { + } + void setFile(const QString& filename) + { + m_filename = filename; + if(filename.isEmpty()) + return; + + const KArchiveEntry* entry; + + entry = m_dir->entry(filename); + if(entry == 0 || !entry->isFile()) + { + m_file = 0; + return; + } + m_file = static_cast<const KArchiveFile*>(entry); + } + void setZip(const QString& zipfile) + { + closeZip(); + + m_zip = new KZip(zipfile); + + if(!m_zip->open(IO_ReadOnly)) + { + qDebug("Unable to open '%s' for reading.", zipfile.ascii()); + return; + } + m_dir = m_zip->directory(); + if(m_dir == 0) + { + qDebug("Error reading directory contents of file %s", zipfile.ascii()); + return; + } + } + + virtual ~ZipFile() + { + closeZip(); + } + + void closeZip() + { + if(m_zip) + { + m_zip->close(); + delete m_zip; + } + } + + QByteArray data() + { + if(m_file) + return m_file->data(); + else + { + if(!m_filename.isEmpty()) + qDebug("Error reading file %s from zip", m_filename.ascii()); + return QByteArray(); + } + } + + bool exists() + { + return (m_file != 0); + } + + private: + KZip* m_zip; + const KArchiveFile* m_file; + QString m_filename; + const KArchiveDirectory* m_dir; +}; + +ThemeFile::ThemeFile(const KURL& url) + : m_stream(0), m_locale(0), m_zip(0) +{ + if(url.isValid()) + set(url); +} + +ThemeFile::~ThemeFile() +{ + delete m_stream; + delete m_locale; + delete m_zip; +} + +bool ThemeFile::open() +{ + bool result = false; + + close(); + + if(m_zipTheme) + { + m_zip->setFile(m_theme); + m_ba = m_zip->data(); + if(m_ba.size() > 0) + { + m_stream = new QTextStream(m_ba, IO_ReadOnly); + result = true; + } + } + else + { + m_fl.setName(m_file); + + if(m_fl.open(IO_ReadOnly|IO_Translate)) + { + m_stream = new QTextStream(&m_fl); // use a text stream + result = true; + } + } + return result; +} + +bool ThemeFile::nextLine(LineParser& parser) +{ + parser.set(""); + + if(m_stream) + { + QString result = m_stream->readLine(); + + if(result.isNull()) + return false; + parser.set(result); + return true; + } + return false; +} + +bool ThemeFile::close() +{ + if(m_stream) + { + delete m_stream; + m_stream = 0; + m_fl.close(); + m_ba.resize(0); + return true; + } + return false; +} + +bool ThemeFile::isValid() const +{ + return (exists() && !m_name.isEmpty() && !m_theme.isEmpty()); +} + +bool ThemeFile::exists() const +{ + QFileInfo file(m_file); + return file.exists(); +} + +QPixmap ThemeFile::icon() const +{ + return QPixmap(readThemeFile(m_icon)); +} + +bool ThemeFile::set(const KURL &url) +{ + if(!url.isLocalFile() && !url.protocol().isEmpty()) + { + if(KMessageBox::warningContinueCancel(kapp->activeWindow(), + i18n("You are about to install and run %1 SuperKaramba theme. Since " + "themes can contain executable code you should only install themes " + "from sources that you trust. Continue?"), i18n("Executable Code Warning"), i18n("Install") + .arg(url.prettyURL())) + == KMessageBox::Cancel) + { + return false; + } + + QDir themeDir(locateLocal("appdata", "themes/", true)); + QFileInfo localFile = themeDir.filePath(url.fileName()); + + if(localFile.exists()) + { + if(KMessageBox::warningContinueCancel(kapp->activeWindow(), + i18n("%1 already exists. Do you want to overwrite it?") + .arg(localFile.filePath()),i18n("File Exists"),i18n("Overwrite")) + == KMessageBox::Cancel) + { + return false; + } + } + if(!KIO::NetAccess::file_copy(url, localFile.filePath(), -1, true, + false, kapp->mainWidget())) + { + return false; + } + m_file = localFile.filePath(); + } + else + { + if(url.directory().isEmpty() || url.directory() == "/") + m_file = canonicalFile(QDir::current().filePath(url.fileName())); + else + m_file = canonicalFile(url.path()); + if(!exists()) + return false; + } + + QFileInfo fi(m_file); + + m_name = fi.baseName( TRUE ); + m_theme = m_name + ".theme"; + m_python = m_name; + m_id = m_name; + + if(isZipFile(m_file)) + { + m_path = m_file; + m_zipTheme = true; + m_zip = new ZipFile(); + m_zip->setZip(m_file); + } + else + { + m_path = fi.dirPath(true) + "/"; + m_zipTheme = false; + } + parseXml(); + + QFileInfo fimo(m_python); + if(m_python.isEmpty()) + fimo.setFile(m_theme); + else + fimo.setFile(m_python); + m_mo = fimo.baseName( TRUE ); + + m_locale = new ThemeLocale(this); + return isValid(); +} + +void ThemeFile::parseXml() +{ + if(!fileExists("maindata.xml")) + return; + QByteArray ba = readThemeFile("maindata.xml"); + QDomDocument doc("superkaramba_theme"); + doc.setContent(ba); + QDomElement element = doc.documentElement(); + + QDomNode n = element.firstChild(); + while(!n.isNull()) + { + QDomElement e = n.toElement(); + if(!e.isNull()) + { + if(e.tagName() == "name") + m_name = e.text(); + else if(e.tagName() == "themefile") + m_theme = e.text(); + else if(e.tagName() == "python_module") + { + m_python = e.text(); + if(m_python.right(3).lower() == ".py") + m_python.remove(m_python.length() - 3, 3); + } + else if(e.tagName() == "description") + m_description = e.text(); + else if(e.tagName() == "author") + m_author = e.text(); + else if(e.tagName() == "author_email") + m_authorEmail = e.text(); + else if(e.tagName() == "homepage") + m_homepage = e.text(); + else if(e.tagName() == "icon") + m_icon = e.text(); + else if(e.tagName() == "version") + m_version = e.text(); + else if(e.tagName() == "license") + m_license = e.text(); + } + n = n.nextSibling(); + } +} + +bool ThemeFile::canUninstall() const +{ + QFileInfo fi(file()); + if(fi.permission(QFileInfo::WriteUser) || + fi.permission(QFileInfo::WriteGroup) || + fi.permission(QFileInfo::WriteOther)) + return true; + return false; +} + +bool ThemeFile::isThemeFile(const QString& filename) const +{ + QFileInfo fileInfo(filename); + + return fileInfo.isRelative(); +} + +bool ThemeFile::fileExists(const QString& filename) const +{ + if(isThemeFile(filename)) + { + if(isZipTheme()) + { + m_zip->setFile(filename); + return m_zip->exists(); + } + else + return QFileInfo(path() + "/" + filename).exists(); + } + else + return QFileInfo(filename).exists(); +} + +QByteArray ThemeFile::readThemeFile(const QString& filename) const +{ + //QTime time; + //time.start(); + QByteArray ba; + + if(isZipTheme()) + { + m_zip->setFile(filename); + ba = m_zip->data(); + } + else + { + QFile file(path() + "/" + filename); + + if(file.open(IO_ReadOnly)) + { + ba = file.readAll(); + file.close(); + } + } + //kdDebug() << "Read theme file: " << filename << ", " << time.elapsed() + // << "ms" << endl; + return ba; +} + +bool ThemeFile::isZipFile(const QString& filename) +{ + QFile file(filename); + + if(file.open(IO_ReadOnly)) + { + unsigned char buf[5]; + + if(file.readBlock((char*)buf, 4) == 4) + { + if(buf[0] == 'P' && buf[1] == 'K' && buf[2] == 3 && buf[3] == 4) + return true; + } + } + return false; +} + +bool ThemeFile::pythonModuleExists() const +{ + return (!m_python.isEmpty() && fileExists(m_python + ".py")); +} + +QString ThemeFile::canonicalFile(const QString& file) +{ + // Get absolute path with NO symlinks + QFileInfo fi(file); + return QDir(fi.dir().canonicalPath()).filePath(fi.fileName()); +} |