Add logging mechanism

[pulseview.git] / pv / logging.hpp

diff --git a/pv/logging.hpp b/pv/logging.hpp
new file mode 100644 (file)
index 0000000..6995762
--- /dev/null
+++ b/pv/logging.hpp
@@ -0,0 +1,79 @@
+/*
+ * This file is part of the PulseView project.
+ *
+ * Copyright (C) 2018 Soeren Apel <soeren@apelpie.net>
+ *
+ * This program 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.
+ *
+ * This program 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 this program; if not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef PULSEVIEW_PV_LOGGING_HPP
+#define PULSEVIEW_PV_LOGGING_HPP
+
+#include "globalsettings.hpp"
+
+#include <QtGlobal>
+#include <QObject>
+#include <QString>
+#include <QStringList>
+
+namespace pv {
+
+class Logging : public QObject, public GlobalSettingsInterface
+{
+       Q_OBJECT
+
+public:
+       enum LogSource {
+               LogSource_pv,
+               LogSource_sr,
+               LogSource_srd
+       };
+
+       static const int MAX_BUFFER_SIZE;
+
+public:
+       ~Logging();
+       void init();
+
+       int get_log_level() const;
+       void set_log_level(int level);
+
+       QString get_log() const;
+
+       void log(const QString &text, int source);
+
+       static void log_pv(QtMsgType type, const QMessageLogContext &context, const QString &msg);
+
+       static int log_libsigrok(void *cb_data, int loglevel, const char *format, va_list args);
+
+#ifdef ENABLE_DECODE
+       static int log_libsrd(void *cb_data, int loglevel, const char *format, va_list args);
+#endif
+
+private:
+       void on_setting_changed(const QString &key, const QVariant &value);
+
+Q_SIGNALS:
+       void logged_text(QString s);
+
+private:
+       int buffer_size_;
+       QStringList buffer_;
+};
+
+extern Logging logging;
+
+} // namespace pv
+
+#endif // PULSEVIEW_PV_LOGGING_HPP