From a09f4908040c5bea6fa5c49193e21f73e58f2d6d Mon Sep 17 00:00:00 2001
From: Muhammed Galib Uludag <m231@tnctr.com>
Date: Mon, 28 Jun 2021 23:13:37 +0300
Subject: [PATCH] Implemented QTextEdit and, QTextBrowser sink

---
 include/spdlog/sinks/qtextedit_sink.h   | 70 +++++++++++++++++++++++++
 include/spdlog/sinks/qtextedit_sink_p.h | 35 +++++++++++++
 2 files changed, 105 insertions(+)
 create mode 100644 include/spdlog/sinks/qtextedit_sink.h
 create mode 100644 include/spdlog/sinks/qtextedit_sink_p.h

diff --git a/include/spdlog/sinks/qtextedit_sink.h b/include/spdlog/sinks/qtextedit_sink.h
new file mode 100644
index 00000000..859d1aaa
--- /dev/null
+++ b/include/spdlog/sinks/qtextedit_sink.h
@@ -0,0 +1,70 @@
+// Copyright(c) 2015-present, Gabi Melman, mguludag and spdlog contributors.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+
+#pragma once
+
+//
+// Custom sink for QTextEdit and its childs(QTextBrowser... etc)
+// Building and using requires Qt library.
+//
+
+#include "spdlog/common.h"
+#include "spdlog/details/log_msg.h"
+#include "spdlog/details/synchronous_factory.h"
+#include "spdlog/sinks/base_sink.h"
+
+#include "qtextedit_sink_p.h"
+
+namespace spdlog {
+namespace sinks {
+template <typename Mutex>
+class qtextedit_sink : public base_sink<Mutex> {
+public:
+  qtextedit_sink(QTextEdit *textedit = nullptr) {
+    if (textedit != nullptr) {
+      textedit_p = std::make_shared<_spdlog_p::_sinks_p::qtextedit_sink_p>(textedit);
+    } else {
+      throw spdlog_ex("Error opening QTextEdit");
+    }
+  }
+
+  ~qtextedit_sink() { flush_(); }
+
+protected:
+  void sink_it_(const details::log_msg &msg) override {
+    memory_buf_t formatted;
+    base_sink<Mutex>::formatter_->format(msg, formatted);
+    auto str = std::string(formatted.begin(), formatted.end() - 2);
+    textedit_p->append(str);
+  }
+
+  void flush_() override {}
+
+private:
+    std::shared_ptr<_spdlog_p::_sinks_p::qtextedit_sink_p> textedit_p = nullptr;
+};
+
+#include "spdlog/details/null_mutex.h"
+#include <mutex>
+using qtextedit_sink_mt = qtextedit_sink<std::mutex>;
+using qtextedit_sink_st = qtextedit_sink<spdlog::details::null_mutex>;
+
+} // namespace sinks
+
+template <typename Factory = spdlog::synchronous_factory>
+inline std::shared_ptr<logger>
+qtextedit_logger_mt(const std::string &logger_name,
+                    QTextEdit *qtextedit = nullptr) {
+  return Factory::template create<sinks::qtextedit_sink_mt>(logger_name,
+                                                            qtextedit);
+}
+
+template <typename Factory = spdlog::synchronous_factory>
+inline std::shared_ptr<logger>
+qtextedit_logger_st(const std::string &logger_name,
+                    QTextEdit *qtextedit = nullptr) {
+  return Factory::template create<sinks::qtextedit_sink_st>(logger_name,
+                                                            qtextedit);
+}
+
+} // namespace spdlog
diff --git a/include/spdlog/sinks/qtextedit_sink_p.h b/include/spdlog/sinks/qtextedit_sink_p.h
new file mode 100644
index 00000000..30c6bc09
--- /dev/null
+++ b/include/spdlog/sinks/qtextedit_sink_p.h
@@ -0,0 +1,35 @@
+// Copyright(c) 2015-present, Gabi Melman, mguludag and spdlog contributors.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+
+#pragma once
+
+#include <QObject>
+#include <QTextEdit>
+
+namespace _spdlog_p {
+namespace _sinks_p {
+class qtextedit_sink_p : public QObject {
+    Q_OBJECT
+public:
+    qtextedit_sink_p(QTextEdit *textedit = nullptr) {
+        if (textedit != nullptr) {
+            textedit_ = textedit;
+            connect(this, &qtextedit_sink_p::append_text, textedit_,
+                    &QTextEdit::append);
+        }
+    }
+
+    ~qtextedit_sink_p() {}
+
+    void append(const std::string &str) {
+        emit append_text(QString::fromStdString(str));
+    }
+
+signals:
+    void append_text(const QString &);
+
+private:
+    QTextEdit *textedit_ = nullptr;
+};
+} // namespace _sinks_p
+} // namespace _spdlog_p