From ecb45ef6df11cab92e0ef56b2873bb5da3be8010 Mon Sep 17 00:00:00 2001
From: Eladash <elad3356p@gmail.com>
Date: Sat, 16 Sep 2023 22:27:21 +0300
Subject: [PATCH] Welcome Dialog: Add ability to set Dark Theme

---
 rpcs3/rpcs3qt/gui_application.cpp |  9 +++++++++
 rpcs3/rpcs3qt/welcome_dialog.cpp  | 10 ++++++++++
 rpcs3/rpcs3qt/welcome_dialog.h    |  5 +++++
 rpcs3/rpcs3qt/welcome_dialog.ui   |  7 +++++++
 4 files changed, 31 insertions(+)

diff --git a/rpcs3/rpcs3qt/gui_application.cpp b/rpcs3/rpcs3qt/gui_application.cpp
index 982e1632ed..f20d791d6b 100644
--- a/rpcs3/rpcs3qt/gui_application.cpp
+++ b/rpcs3/rpcs3qt/gui_application.cpp
@@ -135,10 +135,19 @@ bool gui_application::Init()
 	// Create connects to propagate events throughout Gui.
 	InitializeConnects();
 
+	bool set_dark_theme = false;
+
 	if (m_gui_settings->GetValue(gui::ib_show_welcome).toBool())
 	{
 		welcome_dialog* welcome = new welcome_dialog(m_gui_settings, false);
 		welcome->exec();
+
+		if (welcome->does_user_want_dark_theme())
+		{
+			m_gui_settings->SetValue(gui::m_currentStylesheet, "Darker Style by TheMitoSan");
+		}
+
+		m_gui_settings->sync();
 	}
 
 	// Check maxfiles
diff --git a/rpcs3/rpcs3qt/welcome_dialog.cpp b/rpcs3/rpcs3qt/welcome_dialog.cpp
index 32677a9396..d06275eabe 100644
--- a/rpcs3/rpcs3qt/welcome_dialog.cpp
+++ b/rpcs3/rpcs3qt/welcome_dialog.cpp
@@ -10,6 +10,13 @@
 #include <QPushButton>
 #include <QCheckBox>
 #include <QSvgWidget>
+#include <QStyleHints>
+#include <QGuiApplication>
+
+static bool recommend_dark_theme()
+{
+	return QGuiApplication::styleHints()->colorScheme() == Qt::ColorScheme::Dark;
+}
 
 welcome_dialog::welcome_dialog(std::shared_ptr<gui_settings> gui_settings, bool is_manual_show, QWidget* parent)
 	: QDialog(parent)
@@ -26,6 +33,7 @@ welcome_dialog::welcome_dialog(std::shared_ptr<gui_settings> gui_settings, bool
 	ui->i_have_read->setEnabled(!is_manual_show);
 	ui->do_not_show->setEnabled(!is_manual_show);
 	ui->do_not_show->setChecked(!m_gui_settings->GetValue(gui::ib_show_welcome).toBool());
+	ui->use_dark_theme->setChecked(recommend_dark_theme());
 	ui->icon_label->load(QStringLiteral(":/rpcs3.svg"));
 	ui->label_3->setText(tr(
 		R"(
@@ -85,6 +93,8 @@ welcome_dialog::welcome_dialog(std::shared_ptr<gui_settings> gui_settings, bool
 		{
 			gui::utils::create_shortcut("RPCS3", "", "RPCS3", ":/rpcs3.svg", fs::get_temp_dir(), gui::utils::shortcut_location::applications);
 		}
+
+		m_user_wants_dark_theme = ui->use_dark_theme->isChecked();
 	});
 }
 
diff --git a/rpcs3/rpcs3qt/welcome_dialog.h b/rpcs3/rpcs3qt/welcome_dialog.h
index 3f04cfdb9f..6e32117e2c 100644
--- a/rpcs3/rpcs3qt/welcome_dialog.h
+++ b/rpcs3/rpcs3qt/welcome_dialog.h
@@ -17,7 +17,12 @@ public:
 	explicit welcome_dialog(std::shared_ptr<gui_settings> gui_settings, bool is_manual_show, QWidget* parent = nullptr);
 	~welcome_dialog();
 
+	bool does_user_want_dark_theme() const
+	{
+		return m_user_wants_dark_theme;
+	}
 private:
 	std::unique_ptr<Ui::welcome_dialog> ui;
 	std::shared_ptr<gui_settings> m_gui_settings;
+	bool m_user_wants_dark_theme = false;
 };
diff --git a/rpcs3/rpcs3qt/welcome_dialog.ui b/rpcs3/rpcs3qt/welcome_dialog.ui
index 6eb517402d..a1026854ee 100644
--- a/rpcs3/rpcs3qt/welcome_dialog.ui
+++ b/rpcs3/rpcs3qt/welcome_dialog.ui
@@ -198,6 +198,13 @@
        </property>
       </widget>
      </item>
+     <item>
+      <widget class="QCheckBox" name="use_dark_theme">
+       <property name="text">
+        <string>Use Dark Theme (Can Be Configured Later)</string>
+       </property>
+      </widget>
+     </item>
      <item>
       <spacer name="verticalSpacer">
        <property name="orientation">