First addition of qt6ct based color palettes to give dark mode on all platforms.

scwx-qt/source/scwx/qt/main/main.cpp

@@ -12,6 +12,7 @@
 #include <scwx/qt/settings/general_settings.hpp>
 #include <scwx/qt/types/qt_types.hpp>
 #include <scwx/qt/ui/setup/setup_wizard.hpp>
+#include <scwx/qt/util/qt6ct_palette.hpp>
 #include <scwx/network/cpr.hpp>
 #include <scwx/util/environment.hpp>
 #include <scwx/util/logger.hpp>
@@ -27,6 +28,8 @@
 #include <QStandardPaths>
 #include <QStyleHints>
 #include <QTranslator>
+#include <QPalette>
+#include <QStyle>
 
 static const std::string logPrefix_ = "scwx::main";
 static const auto        logger_    = scwx::util::Logger::Create(logPrefix_);
@@ -162,6 +165,15 @@ static void ConfigureTheme(const std::vector<std::string>& args)
    }
 
    QGuiApplication::styleHints()->setColorScheme(qtColorScheme);
+
+   if (uiStyle == scwx::qt::types::UiStyle::FusionQt6Ct)
+   {
+      auto palette =
+         std::make_unique<QPalette>(scwx::qt::util::qt6ct::loadColorScheme(
+            ":res/qt6ct_colors/darker.conf",
+            QApplication::style()->standardPalette()));
+      QApplication::setPalette(*palette);
+   }
 }
 
 static void

scwx-qt/source/scwx/qt/types/qt_types.cpp

@@ -15,6 +15,7 @@ static const std::unordered_map<UiStyle, std::string> qtStyleName_ {
    {UiStyle::Fusion, "Fusion"},
    {UiStyle::FusionLight, "Fusion"},
    {UiStyle::FusionDark, "Fusion"},
+   {UiStyle::FusionQt6Ct, "Fusion"},
    {UiStyle::Unknown, "?"}};
 
 static const std::unordered_map<UiStyle, std::string> uiStyleName_ {
@@ -22,6 +23,7 @@ static const std::unordered_map<UiStyle, std::string> uiStyleName_ {
    {UiStyle::Fusion, "Fusion"},
    {UiStyle::FusionLight, "Fusion Light"},
    {UiStyle::FusionDark, "Fusion Dark"},
+   {UiStyle::FusionQt6Ct, "Fusion with qt6ct Palette"},
    {UiStyle::Unknown, "?"}};
 
 static const std::unordered_map<UiStyle, Qt::ColorScheme> qtColorSchemeMap_ {
@@ -29,6 +31,7 @@ static const std::unordered_map<UiStyle, Qt::ColorScheme> qtColorSchemeMap_ {
    {UiStyle::Fusion, Qt::ColorScheme::Unknown},
    {UiStyle::FusionLight, Qt::ColorScheme::Light},
    {UiStyle::FusionDark, Qt::ColorScheme::Dark},
+   {UiStyle::FusionQt6Ct, Qt::ColorScheme::Unknown},
    {UiStyle::Unknown, Qt::ColorScheme::Unknown}};
 
 SCWX_GET_ENUM(UiStyle, GetUiStyle, uiStyleName_)

scwx-qt/source/scwx/qt/types/qt_types.hpp

@@ -26,9 +26,10 @@ enum class UiStyle
    Fusion,
    FusionLight,
    FusionDark,
+   FusionQt6Ct,
    Unknown
 };
-typedef scwx::util::Iterator<UiStyle, UiStyle::Default, UiStyle::FusionDark>
+typedef scwx::util::Iterator<UiStyle, UiStyle::Default, UiStyle::FusionQt6Ct>
    UiStyleIterator;
 
 Qt::ColorScheme GetQtColorScheme(UiStyle uiStyle);

scwx-qt/source/scwx/qt/util/qt6ct_palette.cpp

@@ -0,0 +1,87 @@
+/* This code is drawn from qt6ct, and loads qt6ct color palette files.
+ * qt6ct is licensed under BSD-2-Clause below.
+ *
+ * Copyright (c) 2020-2024, Ilya Kotov <forkotov02@ya.ru>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <QPalette>
+#include <QSettings>
+
+namespace scwx
+{
+namespace qt
+{
+namespace util
+{
+namespace qt6ct
+{
+
+QPalette loadColorScheme(const QString &filePath, const QPalette &fallback)
+{
+    QPalette customPalette;
+    QSettings settings(filePath, QSettings::IniFormat);
+    settings.beginGroup("ColorScheme");
+    QStringList activeColors = settings.value("active_colors").toStringList();
+    QStringList inactiveColors = settings.value("inactive_colors").toStringList();
+    QStringList disabledColors = settings.value("disabled_colors").toStringList();
+    settings.endGroup();
+
+
+#if (QT_VERSION >= QT_VERSION_CHECK(6,6,0))
+    if(activeColors.count() == QPalette::Accent)
+        activeColors << activeColors.at(QPalette::Highlight);
+    if(inactiveColors.count() == QPalette::Accent)
+        inactiveColors << inactiveColors.at(QPalette::Highlight);
+    if(disabledColors.count() == QPalette::Accent)
+        disabledColors << disabledColors.at(QPalette::Highlight);
+#endif
+
+
+    if(activeColors.count() >= QPalette::NColorRoles &&
+            inactiveColors.count() >= QPalette::NColorRoles &&
+            disabledColors.count() >= QPalette::NColorRoles)
+    {
+        for (int i = 0; i < QPalette::NColorRoles; i++)
+        {
+            QPalette::ColorRole role = QPalette::ColorRole(i);
+            customPalette.setColor(QPalette::Active, role, QColor(activeColors.at(i)));
+            customPalette.setColor(QPalette::Inactive, role, QColor(inactiveColors.at(i)));
+            customPalette.setColor(QPalette::Disabled, role, QColor(disabledColors.at(i)));
+        }
+    }
+    else
+    {
+        customPalette = fallback; //load fallback palette
+    }
+
+    return customPalette;
+}
+
+} // namespace qt6ct
+} // namespace util
+} // namespace qt
+} // namespace scwx

scwx-qt/source/scwx/qt/util/qt6ct_palette.hpp

@@ -0,0 +1,50 @@
+#pragma once
+
+/* This code is drawn from qt6ct, and loads qt6ct color palette files.
+ * qt6ct is licensed under BSD-2-Clause below.
+ *
+ * Copyright (c) 2020-2024, Ilya Kotov <forkotov02@ya.ru>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <QString>
+#include <QPalette>
+
+namespace scwx
+{
+namespace qt
+{
+namespace util
+{
+namespace qt6ct
+{
+
+QPalette loadColorScheme(const QString &filePath, const QPalette &fallback);
+
+} // namespace qt6ct
+} // namespace util
+} // namespace qt
+} // namespace scwx