support bookmark-file; refs #116
Marc Wäckerlin
13 years ago
parent
ac8fa676c0
commit
4c1a396547
13 changed files with 305 additions and 121 deletions
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/*! @file
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@id $Id$ |
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*/ |
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// 1 2 3 4 5 6 7 8
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// 45678901234567890123456789012345678901234567890123456789012345678901234567890
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#include <QtCore/QFile> |
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#include <QtCore/QFileInfo> |
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#include <QtCore/QFileSystemWatcher> |
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#include <QtCore/QString> |
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#include <QtCore/QStringList> |
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#include <cassert> |
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class Storage: public QObject { |
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Q_OBJECT; |
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Q_SIGNALS: |
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void changed(); |
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public: |
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Storage() {} |
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bool valid() { |
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return readable() || writeable(); |
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} |
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operator bool() { |
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return valid(); |
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} |
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virtual bool readable() = 0; |
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virtual bool writeable() = 0; |
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virtual QStringList read() = 0; |
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virtual bool write(const QStringList& out) = 0; |
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}; |
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class FileStorage: public Storage { |
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Q_OBJECT; |
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public: |
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FileStorage(QString file): _file(file) { |
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if (valid()) { |
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assert(connect(new QFileSystemWatcher(QStringList()<<_file.fileName(), |
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this), |
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SIGNAL(fileChanged(const QString&)), |
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SLOT(changed()))); |
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} |
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} |
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bool readable() { |
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return QFileInfo(_file).exists(); |
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} |
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bool writeable() { |
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return readable() || !_file.fileName().isEmpty(); |
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} |
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QStringList read() { |
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QStringList res; |
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if (readable()) { |
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if (_file.open(QIODevice::ReadOnly)) |
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res=QString::fromUtf8(_file.readAll()).split("\n"); |
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_file.close(); |
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} |
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return res; |
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} |
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bool write(const QStringList& out) { |
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bool res(false); |
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if (writeable()) { |
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if (_file.open(QIODevice::WriteOnly)) |
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if (_file.write(out.join("\n").toUtf8())>=0) res=true; |
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_file.close(); |
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} |
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return res; |
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} |
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private: |
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QFile _file; |
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}; |
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