Qt: Add log window

src/duckstation-qt/logwindow.h

@@ -0,0 +1,50 @@
+// SPDX-FileCopyrightText: 2019-2023 Connor McLaughlin <stenzek@gmail.com>
+// SPDX-License-Identifier: (GPL-3.0 OR CC-BY-NC-ND-4.0)
+
+#pragma once
+
+#include "common/log.h"
+
+#include <span>
+#include <QtWidgets/QMainWindow>
+#include <QtWidgets/QPlainTextEdit>
+
+class LogWindow : public QMainWindow
+{
+  Q_OBJECT
+
+public:
+  LogWindow(bool attach_to_main);
+  ~LogWindow();
+
+  static void updateSettings();
+
+  ALWAYS_INLINE bool isAttachedToMainWindow() const { return m_attached_to_main_window; }
+  void reattachToMainWindow();
+
+  void updateWindowTitle();
+
+private:
+  void createUi();
+  void updateLogLevelUi();
+  void setLogLevel(LOGLEVEL level);
+  void populateFilters(QMenu* filter_menu);
+  void setChannelFiltered(size_t index, bool state);
+
+  static void logCallback(void* pUserParam, const char* channelName, const char* functionName, LOGLEVEL level,
+                          std::string_view message);
+
+private Q_SLOTS:
+  void onClearTriggered();
+  void onSaveTriggered();
+  void appendMessage(const QLatin1StringView& channel, quint32 level, const QString& message);
+
+private:
+  QPlainTextEdit* m_text;
+  QMenu* m_level_menu;
+  std::span<const char*> m_filter_names;
+
+  bool m_attached_to_main_window = true;
+};
+
+extern LogWindow* g_log_window;