--- /dev/null
+/*
+ * 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/>.
+ */
+
+#include "logging.hpp"
+#include "globalsettings.hpp"
+
+#include <iostream>
+
+#ifdef ENABLE_DECODE
+#include <libsigrokdecode/libsigrokdecode.h> /* First, so we avoid a _POSIX_C_SOURCE warning. */
+#endif
+
+#include <libsigrokcxx/libsigrokcxx.hpp>
+
+#include <QApplication>
+
+using std::cout;
+using std::endl;
+using std::lock_guard;
+
+namespace pv {
+
+Logging logging;
+
+const int Logging::MIN_BUFFER_SIZE = 10;
+const int Logging::MAX_BUFFER_SIZE = 50000;
+
+static sr_log_callback prev_sr_log_cb;
+static void *prev_sr_log_cb_data;
+
+#ifdef ENABLE_DECODE
+static srd_log_callback prev_srd_log_cb;
+static void *prev_srd_log_cb_data;
+#endif
+
+Logging::~Logging()
+{
+ qInstallMessageHandler(nullptr);
+ if (prev_sr_log_cb)
+ sr_log_callback_set(prev_sr_log_cb, prev_sr_log_cb_data);
+ prev_sr_log_cb = nullptr;
+ prev_sr_log_cb_data = nullptr;
+#ifdef ENABLE_DECODE
+ if (prev_srd_log_cb)
+ srd_log_callback_set(prev_srd_log_cb, prev_srd_log_cb_data);
+ prev_srd_log_cb = nullptr;
+ prev_srd_log_cb_data = nullptr;
+#endif
+
+ GlobalSettings::remove_change_handler(this);
+}
+
+void Logging::init()
+{
+ GlobalSettings settings;
+
+ buffer_size_ =
+ settings.value(GlobalSettings::Key_Log_BufferSize).toInt();
+
+ buffer_.reserve(buffer_size_);
+
+ qInstallMessageHandler(log_pv);
+ sr_log_callback_get(&prev_sr_log_cb, &prev_sr_log_cb_data);
+ sr_log_callback_set(log_sr, nullptr);
+#ifdef ENABLE_DECODE
+ srd_log_callback_get(&prev_srd_log_cb, &prev_srd_log_cb_data);
+ srd_log_callback_set(log_srd, nullptr);
+#endif
+
+ GlobalSettings::add_change_handler(this);
+}
+
+int Logging::get_log_level() const
+{
+ // We assume that libsigrok and libsrd always have the same log level
+ return sr_log_loglevel_get();
+}
+
+void Logging::set_log_level(int level)
+{
+ sr_log_loglevel_set(level);
+#ifdef ENABLE_DECODE
+ srd_log_loglevel_set(level);
+#endif
+}
+
+QString Logging::get_log() const
+{
+ return buffer_.join("<br />\n");
+}
+
+void Logging::log(const QString &text, int source)
+{
+ lock_guard<mutex> log_lock(log_mutex_);
+
+ if (buffer_.size() >= buffer_size_)
+ buffer_.removeFirst();
+
+ QString s;
+
+ if (text.contains("warning", Qt::CaseInsensitive)) {
+ s = QString("<font color=\"darkorange\">%1</font>").arg(text);
+ goto out;
+ }
+
+ if (text.contains("error", Qt::CaseInsensitive)) {
+ s = QString("<font color=\"darkred\">%1</font>").arg(text);
+ goto out;
+ }
+
+ switch (source) {
+ case LogSource_pv:
+ s = QString("<font color=\"darkMagenta\">pv: %1</font>").arg(text);
+ break;
+ case LogSource_sr:
+ s = QString("<font color=\"darkGreen\">sr: %1</font>").arg(text);
+ break;
+ case LogSource_srd:
+ s = QString("<font color=\"olive\">srd: %1</font>").arg(text);
+ break;
+ default:
+ s = text;
+ break;
+ }
+
+out:
+ buffer_.append(s);
+
+ // If we're tearing down the program, sending out notifications to UI
+ // elements that can no longer function properly is a bad idea
+ if (!QApplication::closingDown())
+ logged_text(s);
+}
+
+void Logging::log_pv(QtMsgType type, const QMessageLogContext &context, const QString &msg)
+{
+ (void)type;
+ (void)context;
+
+ logging.log(msg, LogSource_pv);
+
+ cout << msg.toUtf8().data() << endl;
+}
+
+int Logging::log_sr(void *cb_data, int loglevel, const char *format, va_list args)
+{
+ va_list args2;
+
+ (void)cb_data;
+
+ va_copy(args2, args);
+ if (prev_sr_log_cb)
+ prev_sr_log_cb(prev_sr_log_cb_data, loglevel, format, args2);
+ va_end(args2);
+
+ char *text = g_strdup_vprintf(format, args);
+ logging.log(QString::fromUtf8(text), LogSource_sr);
+ g_free(text);
+
+ return SR_OK;
+}
+
+#ifdef ENABLE_DECODE
+int Logging::log_srd(void *cb_data, int loglevel, const char *format, va_list args)
+{
+ va_list args2;
+
+ (void)cb_data;
+
+ va_copy(args2, args);
+ if (prev_srd_log_cb)
+ prev_srd_log_cb(prev_srd_log_cb_data, loglevel, format, args2);
+ va_end(args2);
+
+ char *text = g_strdup_vprintf(format, args);
+ logging.log(QString::fromUtf8(text), LogSource_srd);
+ g_free(text);
+
+ return SR_OK;
+}
+#endif
+
+void Logging::on_setting_changed(const QString &key, const QVariant &value)
+{
+ if (key == GlobalSettings::Key_Log_BufferSize) {
+ // Truncate buffer if needed
+ const int delta = buffer_.size() - value.toInt();
+ if (delta > 0)
+ buffer_.erase(buffer_.begin(), buffer_.begin() + delta);
+
+ buffer_size_ = value.toInt();
+ buffer_.reserve(buffer_size_);
+ }
+}
+
+} // namespace pv