X-Git-Url: http://git.code-monkey.de/?p=pulseview.git;a=blobdiff_plain;f=pv%2Flogging.cpp;fp=pv%2Flogging.cpp;h=ea0798286e6135dc8a57ab0b2b46669d06f28b93;hp=0000000000000000000000000000000000000000;hb=bcb4c327ee9b8d2172d126429ba017884d079d4c;hpb=c1a688dec0b117146a47cc5200e5bc81e445fd2c

diff --git a/pv/logging.cpp b/pv/logging.cpp
new file mode 100644
index 0000000..ea07982
--- /dev/null
+++ b/pv/logging.cpp
@@ -0,0 +1,171 @@
+/*
+ * 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"
+
+#ifdef ENABLE_DECODE
+#include <libsigrokdecode/libsigrokdecode.h> /* First, so we avoid a _POSIX_C_SOURCE warning. */
+#endif
+
+#include <libsigrokcxx/libsigrokcxx.hpp>
+
+#include <QApplication>
+
+namespace pv {
+
+Logging logging;
+
+const int Logging::MAX_BUFFER_SIZE = 50000;
+
+Logging::~Logging()
+{
+	qInstallMessageHandler(0);
+	sr_log_callback_set_default();
+#ifdef ENABLE_DECODE
+	srd_log_callback_set_default();
+#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_set(log_libsigrok, nullptr);
+#ifdef ENABLE_DECODE
+	srd_log_callback_set(log_libsrd, 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);
+	srd_log_loglevel_set(level);
+}
+
+QString Logging::get_log() const
+{
+	return buffer_.join("<br />\n");
+}
+
+void Logging::log(const QString &text, int source)
+{
+	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("pv: ") + text;  // black is default color
+		break;
+	case LogSource_sr:
+		s = QString("<font color=\"blue\">sr: %1</font>").arg(text);
+		break;
+	case LogSource_srd:
+		s = QString("<font color=\"brown\">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);
+}
+
+int Logging::log_libsigrok(void *cb_data, int loglevel, const char *format, va_list args)
+{
+	(void)cb_data;
+	(void)loglevel;
+
+	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_libsrd(void *cb_data, int loglevel, const char *format, va_list args)
+{
+	(void)cb_data;
+	(void)loglevel;
+
+	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