gmic/krita5.patch

From c4b6796080d5c0f76b64fee06a38d285ab462a75 Mon Sep 17 00:00:00 2001
From: Christophe Marin <christophe@krop.fr>
Date: Fri, 28 Jun 2024 09:46:58 +0200
Subject: [PATCH] Krita 5 plugin support

Origin: https://github.com/amyspark/gmic

Rebased for gmic 3.4.0
---
 gmic-qt/CMakeLists.txt                        |  68 ++++-
 gmic-qt/gmic_krita_qt.desktop                 |   9 +
 gmic-qt/src/DialogSettings.cpp                |  33 ++-
 .../src/FilterParameters/BoolParameter.cpp    |   2 +
 .../src/FilterParameters/FloatParameter.cpp   |   3 +-
 gmic-qt/src/FilterParameters/IntParameter.cpp |   2 +
 .../src/FilterParameters/NoteParameter.cpp    |   2 +
 .../FilterParameters/SeparatorParameter.cpp   |   2 +
 .../src/FilterSelector/FiltersPresenter.cpp   |   2 +-
 gmic-qt/src/Globals.h                         |  19 ++
 gmic-qt/src/GmicProcessor.cpp                 |   5 +
 gmic-qt/src/GmicProcessor.h                   |   1 +
 gmic-qt/src/GmicQt.cpp                        |   6 +-
 gmic-qt/src/HeadlessProcessor.cpp             |   5 +-
 .../src/Host/KritaPlugin/gmicqttoolplugin.cpp | 233 ++++++++++++++++++
 .../src/Host/KritaPlugin/gmicqttoolplugin.h   |  55 +++++
 .../Host/KritaPlugin/gmicqttoolplugin.json    |   9 +
 gmic-qt/src/Host/KritaPlugin/host.cpp         | 195 +++++++++++++++
 gmic-qt/src/Host/None/JpegQualityDialog.cpp   |   6 +-
 gmic-qt/src/LanguageSettings.cpp              |   9 +-
 gmic-qt/src/MainWindow.cpp                    |  52 +++-
 gmic-qt/src/MainWindow.h                      |   2 +
 gmic-qt/src/Settings.cpp                      |  10 +-
 gmic-qt/src/Tags.cpp                          |   6 +-
 gmic-qt/src/Widgets/InOutPanel.cpp            |   2 +
 gmic-qt/src/Widgets/InOutPanel.h              |   2 +
 gmic-qt/src/Widgets/ProgressInfoWindow.cpp    |   4 +
 gmic-qt/src/Widgets/ProgressInfoWindow.h      |   2 +
 gmic-qt/ui/dialogsettings.ui                  |   2 +-
 29 files changed, 716 insertions(+), 32 deletions(-)
 create mode 100644 gmic-qt/gmic_krita_qt.desktop
 create mode 100644 gmic-qt/src/Host/KritaPlugin/gmicqttoolplugin.cpp
 create mode 100644 gmic-qt/src/Host/KritaPlugin/gmicqttoolplugin.h
 create mode 100644 gmic-qt/src/Host/KritaPlugin/gmicqttoolplugin.json
 create mode 100644 gmic-qt/src/Host/KritaPlugin/host.cpp

diff --git a/gmic-qt/CMakeLists.txt b/gmic-qt/CMakeLists.txt
index 47face8..0641f4c 100644
--- a/gmic-qt/CMakeLists.txt
+++ b/gmic-qt/CMakeLists.txt
@@ -30,7 +30,7 @@ endif()
 
 message("Build type is " ${CMAKE_BUILD_TYPE})
 
-set (GMIC_QT_HOST "gimp" CACHE STRING "Define for which host gmic-qt will be built: gimp, gimp3 (experimental), none, paintdotnet or 8bf.")
+set (GMIC_QT_HOST "gimp" CACHE STRING "Define for which host gmic-qt will be built: gimp, gimp3 (experimental), krita-plugin, none, paintdotnet or 8bf.")
 if (${GMIC_QT_HOST} STREQUAL "none")
   message("Building standalone version.")
 else()
@@ -701,6 +701,70 @@ if (${GMIC_QT_HOST} STREQUAL "gimp" OR ${GMIC_QT_HOST} STREQUAL "gimp3")
       )
     install(TARGETS gmic_gimp_qt RUNTIME DESTINATION "${GIMP_PKGLIBDIR}/plug-ins/gmic_gimp_qt")
 
+elseif (${GMIC_QT_HOST} STREQUAL "krita-plugin")
+    set(MIN_FRAMEWORKS_VERSION 5.44.0)
+
+    find_package(ECM 5.22 REQUIRED NOMODULE)
+    set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} ${ECM_MODULE_PATH} ${ECM_KDE_MODULE_DIR})
+
+    include(KDEInstallDirs)
+    include(KDECMakeSettings)
+
+    if (ANDROID)
+        set (KRITA_PLUGIN_INSTALL_DIR ${LIB_INSTALL_DIR})
+    else()
+        set (KRITA_PLUGIN_INSTALL_DIR ${LIB_INSTALL_DIR}/kritaplugins)
+    endif()
+
+    find_package(KF5 ${MIN_FRAMEWORKS_VERSION} REQUIRED COMPONENTS
+        CoreAddons
+    )
+
+    message(STATUS "Looking for Krita QMic libraries in: ${CMAKE_PREFIX_PATH}")
+
+    find_library(KIS_IMAGE_INTERFACE_LIBRARY
+      NAMES kritaqmicinterface
+      REQUIRED)
+
+    find_path(KIS_IMAGE_INTERFACE_DIR
+      NAMES kis_qmic_plugin_interface.h
+      REQUIRED)
+
+    set_package_properties(kritaqmicinterface PROPERTIES
+                           URL "http://www.krita.org"
+                           DESCRIPTION "Krita GMic core library"
+    )
+
+    set (gmic_qt_SRCS ${gmic_qt_SRCS} src/Host/KritaPlugin/host.cpp src/Host/KritaPlugin/gmicqttoolplugin.cpp)
+    set (gmic_qt_SRCS ${gmic_qt_SRCS} )
+    qt5_wrap_ui(gmic_qt_SRCS ${gmic_qt_FORMS})
+    add_definitions(-DGMIC_HOST=krita-plugin)
+    add_definitions(-D_GMIC_QT_DISABLE_THEMING_)
+    add_definitions(-D_GMIC_QT_CONSENT_TO_UPDATE_FIRST_)
+    add_definitions(-D_GMIC_QT_DISABLE_TRANSLATION_)
+    add_definitions(-D_GMIC_USE_HOSTED_SETTINGS_)
+    add_library(krita_gmic_qt MODULE ${gmic_qt_SRCS} ${gmic_qt_QRC} ${qmic_qt_QM})
+    target_include_directories(
+      krita_gmic_qt
+      PUBLIC
+      ${KIS_IMAGE_INTERFACE_DIR}
+    )
+    target_link_libraries(
+      krita_gmic_qt
+      PRIVATE
+      ${gmic_qt_LIBRARIES}
+      ${KIS_IMAGE_INTERFACE_LIBRARY}
+      KF5::CoreAddons
+      )
+    if (ANDROID)
+      target_link_libraries(
+        krita_gmic_qt
+        PRIVATE
+        log
+      )
+    endif()
+    install(TARGETS krita_gmic_qt DESTINATION ${KRITA_PLUGIN_INSTALL_DIR}) # plugin
+
 elseif (${GMIC_QT_HOST} STREQUAL "none")
 
   set (gmic_qt_SRCS ${gmic_qt_SRCS}
@@ -783,7 +847,7 @@ elseif (${GMIC_QT_HOST} STREQUAL "8bf")
 
 else()
 
-  message(FATAL_ERROR "GMIC_QT_HOST is not defined as gimp, gimp3, none, paintdotnet or 8bf")
+  message(FATAL_ERROR "GMIC_QT_HOST is not defined as gimp, gimp3, krita-plugin, none, paintdotnet or 8bf")
 
 endif()
 
diff --git a/gmic-qt/gmic_krita_qt.desktop b/gmic-qt/gmic_krita_qt.desktop
new file mode 100644
index 0000000..579d427
--- /dev/null
+++ b/gmic-qt/gmic_krita_qt.desktop
@@ -0,0 +1,9 @@
+[Desktop Entry]
+Name=gmic_krita_qt
+Exec=gmic_krita_qt
+GenericName=G'Mic plugin for Krita
+Comment=G'Mic plugin for Krita
+Type=Application
+Icon=gmic_krita_qt
+Categories=Qt;KDE;Graphics;
+StartupNotify=false
diff --git a/gmic-qt/src/DialogSettings.cpp b/gmic-qt/src/DialogSettings.cpp
index 6c1e6b9..29328c4 100644
--- a/gmic-qt/src/DialogSettings.cpp
+++ b/gmic-qt/src/DialogSettings.cpp
@@ -56,11 +56,7 @@ DialogSettings::DialogSettings(QWidget * parent) : QDialog(parent), ui(new Ui::D
 #ifdef _GMIC_QT_DEBUG_
   ui->cbUpdatePeriodicity->addItem(tr("At launch (debug)"), QVariant(0));
 #endif
-  for (int i = 0; i < ui->cbUpdatePeriodicity->count(); ++i) {
-    if (Settings::updatePeriodicity() == ui->cbUpdatePeriodicity->itemData(i).toInt()) {
-      ui->cbUpdatePeriodicity->setCurrentIndex(i);
-    }
-  }
+  ui->cbUpdatePeriodicity->setCurrentIndex(ui->cbUpdatePeriodicity->findData(Settings::updatePeriodicity()));
 
   ui->outputMessages->setToolTip(tr("Output messages"));
   ui->outputMessages->addItem(tr("Quiet (default)"), (int)OutputMessageMode::Quiet);
@@ -81,9 +77,12 @@ DialogSettings::DialogSettings(QWidget * parent) : QDialog(parent), ui(new Ui::D
 
   ui->rbLeftPreview->setChecked(Settings::previewPosition() == MainWindow::PreviewPosition::Left);
   ui->rbRightPreview->setChecked(Settings::previewPosition() == MainWindow::PreviewPosition::Right);
-  const bool savedDarkTheme = QSettings().value(DARK_THEME_KEY, GmicQtHost::DarkThemeIsDefault).toBool();
+  const bool savedDarkTheme = GMIC_SETTINGS_INLINE.value(DARK_THEME_KEY, GmicQtHost::DarkThemeIsDefault).toBool();
   ui->rbDarkTheme->setChecked(savedDarkTheme);
   ui->rbDefaultTheme->setChecked(!savedDarkTheme);
+#ifdef _GMIC_QT_DISABLE_THEMING_
+  ui->groupBoxTheme->setEnabled(false);
+#endif
   ui->cbNativeColorDialogs->setChecked(Settings::nativeColorDialogs());
   ui->cbNativeColorDialogs->setToolTip(tr("Check to use Native/OS color dialog, uncheck to use Qt's"));
   ui->cbNativeFileDialogs->setChecked(Settings::nativeFileDialogs());
@@ -95,19 +94,33 @@ DialogSettings::DialogSettings(QWidget * parent) : QDialog(parent), ui(new Ui::D
 
   connect(ui->pbOk, &QPushButton::clicked, this, &DialogSettings::onOk);
   connect(ui->rbLeftPreview, &QRadioButton::toggled, this, &DialogSettings::onRadioLeftPreviewToggled);
+#ifdef _GMIC_QT_DISABLE_UPDATES_
+  ui->pbUpdate->setEnabled(false);
+#else
   connect(ui->pbUpdate, &QPushButton::clicked, this, &DialogSettings::onUpdateClicked);
+#endif
+#ifdef _GMIC_QT_DISABLE_UPDATES_
+  ui->cbUpdatePeriodicity->setEnabled(false);
+#else
   connect(ui->cbUpdatePeriodicity, QOverload<int>::of(&QComboBox::currentIndexChanged), this, &DialogSettings::onUpdatePeriodicityChanged);
+#endif
   connect(ui->labelPreviewLeft, &ClickableLabel::clicked, ui->rbLeftPreview, &QRadioButton::click);
   connect(ui->labelPreviewRight, &ClickableLabel::clicked, ui->rbRightPreview, &QRadioButton::click);
   connect(ui->cbNativeColorDialogs, &QCheckBox::toggled, this, &DialogSettings::onColorDialogsToggled);
   connect(ui->cbNativeFileDialogs, &QCheckBox::toggled, this, &DialogSettings::onFileDialogsToggled);
   connect(Updater::getInstance(), &Updater::updateIsDone, this, &DialogSettings::enableUpdateButton);
+#ifndef _GMIC_QT_DISABLE_THEMING_
   connect(ui->rbDarkTheme, &QRadioButton::toggled, this, &DialogSettings::onDarkThemeToggled);
+#endif
   connect(ui->cbShowLogos, &QCheckBox::toggled, this, &DialogSettings::onVisibleLogosToggled);
   connect(ui->cbPreviewZoom, &QCheckBox::toggled, this, &DialogSettings::onPreviewZoomToggled);
   connect(ui->sbPreviewTimeout, QOverload<int>::of(&QSpinBox::valueChanged), this, &DialogSettings::onPreviewTimeoutChange);
   connect(ui->outputMessages, QOverload<int>::of(&QComboBox::currentIndexChanged), this, &DialogSettings::onOutputMessageModeChanged);
+#ifdef _GMIC_QT_DISABLE_UPDATES_
+  ui->cbNotifyFailedUpdate->setEnabled(false);
+#else
   connect(ui->cbNotifyFailedUpdate, &QCheckBox::toggled, this, &DialogSettings::onNotifyStartupUpdateFailedToggle);
+#endif
 
 #if QT_VERSION_GTE(6, 0, 0)
   ui->cbHighDPI->hide();
@@ -117,9 +130,14 @@ DialogSettings::DialogSettings(QWidget * parent) : QDialog(parent), ui(new Ui::D
   connect(ui->cbHighDPI, &QCheckBox::toggled, this, &DialogSettings::onHighDPIToggled);
 #endif
 
+#ifdef _GMIC_QT_DISABLE_TRANSLATION_
+  ui->languageSelector->setEnabled(false);
+#else
   ui->languageSelector->selectLanguage(Settings::languageCode());
   ui->languageSelector->enableFilterTranslation(Settings::filterTranslationEnabled());
+#endif
 
+#ifndef _GMIC_QT_DISABLE_THEMING_
   if (Settings::darkThemeEnabled()) {
     QPalette p = ui->cbNativeColorDialogs->palette();
     p.setColor(QPalette::Text, Settings::CheckBoxTextColor);
@@ -136,6 +154,7 @@ DialogSettings::DialogSettings(QWidget * parent) : QDialog(parent), ui(new Ui::D
     ui->cbNotifyFailedUpdate->setPalette(p);
     ui->cbHighDPI->setPalette(p);
   }
+#endif
   ui->pbOk->setFocus();
   ui->tabWidget->setCurrentIndex(0);
 }
@@ -157,7 +176,7 @@ void DialogSettings::onOk()
 
 void DialogSettings::done(int r)
 {
-  QSettings settings;
+  GMIC_SETTINGS(settings);
   ui->sources->saveSettings();
   Settings::save(settings);
   QDialog::done(r);
diff --git a/gmic-qt/src/FilterParameters/BoolParameter.cpp b/gmic-qt/src/FilterParameters/BoolParameter.cpp
index ffa324e..a9dfb04 100644
--- a/gmic-qt/src/FilterParameters/BoolParameter.cpp
+++ b/gmic-qt/src/FilterParameters/BoolParameter.cpp
@@ -64,12 +64,14 @@ bool BoolParameter::addTo(QWidget * widget, int row)
   _checkBox = new QCheckBox(widget);
   _checkBox->setChecked(_value);
   _label = new QLabel(_name, widget);
+#ifndef _GMIC_QT_DISABLE_THEMING_
   if (Settings::darkThemeEnabled()) {
     QPalette p = _checkBox->palette();
     p.setColor(QPalette::Text, Settings::CheckBoxTextColor);
     p.setColor(QPalette::Base, Settings::CheckBoxBaseColor);
     _checkBox->setPalette(p);
   }
+#endif
   _grid->addWidget(_label, row, 0, 1, 1);
   _grid->addWidget(_checkBox, row, 1, 1, 2);
   connectCheckBox();
diff --git a/gmic-qt/src/FilterParameters/FloatParameter.cpp b/gmic-qt/src/FilterParameters/FloatParameter.cpp
index fb271f0..c8aa32b 100644
--- a/gmic-qt/src/FilterParameters/FloatParameter.cpp
+++ b/gmic-qt/src/FilterParameters/FloatParameter.cpp
@@ -73,13 +73,14 @@ bool FloatParameter::addTo(QWidget * widget, int row)
   _slider->setMinimumWidth(SLIDER_MIN_WIDTH);
   _slider->setRange(0, SLIDER_MAX_RANGE);
   _slider->setValue(static_cast<int>(SLIDER_MAX_RANGE * (_value - _min) / (_max - _min)));
+#ifndef _GMIC_QT_DISABLE_THEMING_
   if (Settings::darkThemeEnabled()) {
     QPalette p = _slider->palette();
     p.setColor(QPalette::Button, QColor(100, 100, 100));
     p.setColor(QPalette::Highlight, QColor(130, 130, 130));
     _slider->setPalette(p);
   }
-
+#endif
   _spinBox = new CustomDoubleSpinBox(widget, _min, _max);
   _spinBox->setSingleStep(double(_max - _min) / 100.0);
   _spinBox->setValue((double)_value);
diff --git a/gmic-qt/src/FilterParameters/IntParameter.cpp b/gmic-qt/src/FilterParameters/IntParameter.cpp
index 2af87cb..bc0f77c 100644
--- a/gmic-qt/src/FilterParameters/IntParameter.cpp
+++ b/gmic-qt/src/FilterParameters/IntParameter.cpp
@@ -81,12 +81,14 @@ bool IntParameter::addTo(QWidget * widget, int row)
 
   _spinBox = new CustomSpinBox(widget, _min, _max);
   _spinBox->setValue(_value);
+#ifndef _GMIC_QT_DISABLE_THEMING_
   if (Settings::darkThemeEnabled()) {
     QPalette p = _slider->palette();
     p.setColor(QPalette::Button, QColor(100, 100, 100));
     p.setColor(QPalette::Highlight, QColor(130, 130, 130));
     _slider->setPalette(p);
   }
+#endif
   _grid->addWidget(_label = new QLabel(_name, widget), row, 0, 1, 1);
   setTextSelectable(_label);
   _grid->addWidget(_slider, row, 1, 1, 1);
diff --git a/gmic-qt/src/FilterParameters/NoteParameter.cpp b/gmic-qt/src/FilterParameters/NoteParameter.cpp
index e576b0f..be469de 100644
--- a/gmic-qt/src/FilterParameters/NoteParameter.cpp
+++ b/gmic-qt/src/FilterParameters/NoteParameter.cpp
@@ -88,12 +88,14 @@ bool NoteParameter::initFromText(const QString & /* filterName */, const char *
   _text.remove(QRegularExpression("^\"")).remove(QRegularExpression("\"$")).replace(QString("\\\""), "\"");
   _text.replace(QString("\\n"), "<br/>");
 
+#ifndef _GMIC_QT_DISABLE_THEMING_
   if (Settings::darkThemeEnabled()) {
     _text.replace(QRegularExpression("color\\s*=\\s*\"purple\""), QString("color=\"#ff00ff\""));
     _text.replace(QRegularExpression("foreground\\s*=\\s*\"purple\""), QString("foreground=\"#ff00ff\""));
     _text.replace(QRegularExpression("color\\s*=\\s*\"blue\""), QString("color=\"#9b9bff\""));
     _text.replace(QRegularExpression("foreground\\s*=\\s*\"blue\""), QString("foreground=\"#9b9bff\""));
   }
+#endif
 
   _text.replace(QRegularExpression("color\\s*=\\s*\""), QString("style=\"color:"));
   _text.replace(QRegularExpression("foreground\\s*=\\s*\""), QString("style=\"color:"));
diff --git a/gmic-qt/src/FilterParameters/SeparatorParameter.cpp b/gmic-qt/src/FilterParameters/SeparatorParameter.cpp
index fad7b0a..7f6d317 100644
--- a/gmic-qt/src/FilterParameters/SeparatorParameter.cpp
+++ b/gmic-qt/src/FilterParameters/SeparatorParameter.cpp
@@ -58,9 +58,11 @@ bool SeparatorParameter::addTo(QWidget * widget, int row)
   _frame->setSizePolicy(sizePolicy);
   _frame->setFrameShape(QFrame::HLine);
   _frame->setFrameShadow(QFrame::Sunken);
+#ifndef _GMIC_QT_DISABLE_THEMING_
   if (Settings::darkThemeEnabled()) {
     _frame->setStyleSheet("QFrame{ border-top: 0px none #a0a0a0; border-bottom: 2px solid rgb(160,160,160);}");
   }
+#endif
   _grid->addWidget(_frame, row, 0, 1, 3);
   return true;
 }
diff --git a/gmic-qt/src/FilterSelector/FiltersPresenter.cpp b/gmic-qt/src/FilterSelector/FiltersPresenter.cpp
index 3d2991c..3df386d 100644
--- a/gmic-qt/src/FilterSelector/FiltersPresenter.cpp
+++ b/gmic-qt/src/FilterSelector/FiltersPresenter.cpp
@@ -431,7 +431,7 @@ void FiltersPresenter::expandFaveFolder()
 void FiltersPresenter::expandPreviousSessionExpandedFolders()
 {
   if (_filtersView) {
-    QList<QString> expandedFolderPaths = QSettings().value("Config/ExpandedFolders", QStringList()).toStringList();
+    QList<QString> expandedFolderPaths = GMIC_SETTINGS_INLINE.value("Config/ExpandedFolders", QStringList()).toStringList();
     _filtersView->expandFolders(expandedFolderPaths);
   }
 }
diff --git a/gmic-qt/src/Globals.h b/gmic-qt/src/Globals.h
index b19a38d..9ab3e3b 100644
--- a/gmic-qt/src/Globals.h
+++ b/gmic-qt/src/Globals.h
@@ -59,7 +59,13 @@ const char WarningPrefix = '!';
 #define ONE_WEEK_HOURS (7 * 24)
 #define TWO_WEEKS_HOURS (14 * 24)
 #define ONE_MONTH_HOURS (30 * 24)
+#ifdef _GMIC_QT_CONSENT_TO_UPDATE_FIRST_
+#define INTERNET_DEFAULT_PERIODICITY INTERNET_NEVER_UPDATE_PERIODICITY
+#define INTERNET_DEFAULT_REFRESH_UPDATE 0
+#else
 #define INTERNET_DEFAULT_PERIODICITY ONE_MONTH_HOURS
+#define INTERNET_DEFAULT_REFRESH_UPDATE 1
+#endif
 
 #define PREVIEW_MAX_ZOOM_FACTOR 40.0
 
@@ -68,4 +74,17 @@ const char WarningPrefix = '!';
 #define KEYPOINTS_INTERACTIVE_MIDDLE_DELAY_MS ((KEYPOINTS_INTERACTIVE_LOWER_DELAY_MS + KEYPOINTS_INTERACTIVE_UPPER_DELAY_MS) / 2)
 #define KEYPOINTS_INTERACTIVE_AVERAGING_COUNT 6
 
+#ifdef _GMIC_USE_HOSTED_SETTINGS_
+#ifdef Q_OS_MACOS
+#define GMIC_SETTINGS(x) QSettings x(GMIC_QT_ORGANISATION_DOMAIN, GMIC_QT_APPLICATION_NAME)
+#define GMIC_SETTINGS_INLINE QSettings(GMIC_QT_ORGANISATION_DOMAIN, GMIC_QT_APPLICATION_NAME)
+#else
+#define GMIC_SETTINGS(x) QSettings x(GMIC_QT_ORGANISATION_NAME, GMIC_QT_APPLICATION_NAME)
+#define GMIC_SETTINGS_INLINE QSettings(GMIC_QT_ORGANISATION_NAME, GMIC_QT_APPLICATION_NAME)
+#endif
+#else
+#define GMIC_SETTINGS(x) QSettings x
+#define GMIC_SETTINGS_INLINE QSettings()
+#endif
+
 #endif // GMIC_QT_GLOBALS_H
diff --git a/gmic-qt/src/GmicProcessor.cpp b/gmic-qt/src/GmicProcessor.cpp
index 80c93c1..0019a1f 100644
--- a/gmic-qt/src/GmicProcessor.cpp
+++ b/gmic-qt/src/GmicProcessor.cpp
@@ -209,6 +209,11 @@ bool GmicProcessor::isIdle() const
   return !_filterThread;
 }
 
+bool GmicProcessor::isInputImagesEmpty() const
+{
+  return _gmicImages->is_empty();
+}
+
 int GmicProcessor::duration() const
 {
   if (_filterThread) {
diff --git a/gmic-qt/src/GmicProcessor.h b/gmic-qt/src/GmicProcessor.h
index cecdd1a..e85cb57 100644
--- a/gmic-qt/src/GmicProcessor.h
+++ b/gmic-qt/src/GmicProcessor.h
@@ -94,6 +94,7 @@ public:
   bool isProcessingFullImage() const;
   bool isProcessing() const;
   bool isIdle() const;
+  bool isInputImagesEmpty() const;
   bool hasUnfinishedAbortedThreads() const;
 
   const gmic_library::gmic_image<float> & previewImage() const;
diff --git a/gmic-qt/src/GmicQt.cpp b/gmic-qt/src/GmicQt.cpp
index 3af90b3..17b98c3 100644
--- a/gmic-qt/src/GmicQt.cpp
+++ b/gmic-qt/src/GmicQt.cpp
@@ -87,7 +87,7 @@ RunParameters lastAppliedFilterRunParameters(ReturnedRunParametersFlag flag)
 {
   configureApplication();
   RunParameters parameters;
-  QSettings settings;
+  GMIC_SETTINGS(settings);
   const QString path = settings.value(QString("LastExecution/host_%1/FilterPath").arg(GmicQtHost::ApplicationShortname)).toString();
   parameters.filterPath = path.toStdString();
   QString args = settings.value(QString("LastExecution/host_%1/Arguments").arg(GmicQtHost::ApplicationShortname)).toString();
@@ -197,7 +197,7 @@ int run(UserInterfaceMode interfaceMode,                   //
     LanguageSettings::installTranslators();
     MainWindow mainWindow;
     mainWindow.setPluginParameters(parameters);
-    if (QSettings().value("Config/MainWindowMaximized", false).toBool()) {
+    if (GMIC_SETTINGS_INLINE.value("Config/MainWindowMaximized", false).toBool()) {
       mainWindow.showMaximized();
     } else {
       mainWindow.show();
@@ -545,9 +545,11 @@ namespace
 
 void configureApplication()
 {
+#ifndef _GMIC_USE_HOSTED_SETTINGS_
   QCoreApplication::setOrganizationName(GMIC_QT_ORGANISATION_NAME);
   QCoreApplication::setOrganizationDomain(GMIC_QT_ORGANISATION_DOMAIN);
   QCoreApplication::setApplicationName(GMIC_QT_APPLICATION_NAME);
+#endif
   QCoreApplication::setAttribute(Qt::AA_DontUseNativeMenuBar);
 #if !QT_VERSION_GTE(6, 0, 0)
   if (QSettings().value(HIGHDPI_KEY, false).toBool()) {
diff --git a/gmic-qt/src/HeadlessProcessor.cpp b/gmic-qt/src/HeadlessProcessor.cpp
index f10efc3..a595ec1 100644
--- a/gmic-qt/src/HeadlessProcessor.cpp
+++ b/gmic-qt/src/HeadlessProcessor.cpp
@@ -27,6 +27,7 @@
 #include <QMessageBox>
 #include <QSettings>
 #include <QStringList>
+#include "Globals.h"
 #include "Common.h"
 #include "FilterParameters/FilterParametersWidget.h"
 #include "FilterSelector/FiltersPresenter.h"
@@ -234,7 +235,7 @@ void HeadlessProcessor::onProcessingFinished()
       GmicQtHost::outputImages(images, _filterThread->imageNames(), _outputMode);
       _processingCompletedProperly = true;
     }
-    QSettings settings;
+    GMIC_SETTINGS(settings);
     if (!status.isEmpty() && !_hash.isEmpty()) {
       ParametersCache::setValues(_hash, status);
       ParametersCache::save();
@@ -267,7 +268,9 @@ void HeadlessProcessor::endApplication(const QString & errorMessage)
   if (!errorMessage.isEmpty()) {
     Logger::error(errorMessage);
   }
+#ifndef _GMIC_USE_HOSTED_SETTINGS_
   QCoreApplication::exit(!errorMessage.isEmpty());
+#endif
 }
 
 } // namespace GmicQt
diff --git a/gmic-qt/src/Host/KritaPlugin/gmicqttoolplugin.cpp b/gmic-qt/src/Host/KritaPlugin/gmicqttoolplugin.cpp
new file mode 100644
index 0000000..849ca44
--- /dev/null
+++ b/gmic-qt/src/Host/KritaPlugin/gmicqttoolplugin.cpp
@@ -0,0 +1,233 @@
+/*
+ *  This file is part of G'MIC-Qt, a generic plug-in for raster graphics
+ *  editors, offering hundreds of filters thanks to the underlying G'MIC
+ *  image processing framework.
+ *
+ *  Copyright (C) 2020-2022 L. E. Segovia <amy@amyspark.me>
+ *
+ *  Description: Krita painting suite plugin for G'Mic-Qt.
+ *
+ *  G'MIC-Qt 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 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  G'MIC-Qt 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 <QApplication>
+#include <QDir>
+#include <QFile>
+#include <QFileInfo>
+#include <QEventLoop>
+#include <QPointer>
+#include <QSettings>
+#include <QTranslator>
+#include <list>
+
+#ifdef Q_OS_ANDROID
+#include <android/log.h>
+#include <array>
+#include <iostream>
+#include <thread>
+#include <unistd.h>
+#endif
+
+#include "Settings.h"
+#include "GmicQt.h"
+#include "Globals.h"
+#include "HeadlessProcessor.h"
+#include "Host/GmicQtHost.h"
+#include "LanguageSettings.h"
+#include "Logger.h"
+#include "MainWindow.h"
+#include "Widgets/InOutPanel.h"
+#include "Widgets/ProgressInfoWindow.h"
+#include "Utils.h"
+#include "gmicqttoolplugin.h"
+
+#include "kpluginfactory.h"
+
+K_PLUGIN_FACTORY_WITH_JSON(KritaGmicPluginFactory,
+                           "gmicqttoolplugin.json",
+                           registerPlugin<KritaGmicPlugin>();)
+
+KritaGmicPlugin::KritaGmicPlugin(QObject *parent, const QVariantList &)
+    : QObject(parent)
+{
+#ifdef Q_OS_WIN
+  // Workaround for deploying basic CLUTs
+  // See https://krita-artists.org/t/unknown-filename-gmic-qt/37813
+  {
+    const auto srcPath = QDir(QCoreApplication::applicationDirPath().append(QStringLiteral("/../share/gmic/"))).absolutePath();
+    const auto dstPath = GmicQt::gmicConfigPath(true);
+    const std::list<QString> files = {"/gmic_cluts.gmz", "/gmic_denoise_cnn.gmz"};
+
+    for (const auto file: files) {
+      const auto src = srcPath + file;
+      const auto dst = dstPath + file;
+      if (QFileInfo(src).exists() && !QFileInfo(dst).exists()) {
+        qWarning() << src << dst;
+        QFile::copy(src, dst);
+      }
+    }
+
+    if (!qEnvironmentVariableIsSet("GMIC_SYSTEM_PATH")) {
+      qputenv("GMIC_SYSTEM_PATH", QString(srcPath).replace(L'/', L'\\').toLocal8Bit());
+    }
+  }
+#endif
+}
+
+int KritaGmicPlugin::launch(std::shared_ptr<KisImageInterface> i, bool headless)
+{
+#ifdef Q_OS_ANDROID
+  /* Since on Android stdout and stderr redirect to null, un-redirect them */
+  /* based on https://stackoverflow.com/a/gmic-qt/31777050 */
+
+  std::array<int, 2> oldFd;
+  std::array<int, 2> newStdout, newStderr;
+
+  auto redir_worker = [](std::array<int, 2> &fd, android_LogPriority lvl) {
+    ssize_t rdsz;
+    std::array<char, 1024> buf{};
+    while ((rdsz = read(fd[0], buf.data(), buf.size() - 1)) > 0) {
+      if (buf[rdsz - 1] == '\n')
+        --rdsz;
+      buf[rdsz] = 0; /* add null-terminator */
+      __android_log_write(
+          lvl, qPrintable(GmicQtHost::ApplicationName), buf.data());
+    }
+  };
+
+  /* make stdout line-buffered and stderr unbuffered */
+  setvbuf(stdout, 0, _IOLBF, 0);
+  setvbuf(stderr, 0, _IOLBF, 0);
+
+  /* create the pipe and redirect stdout and stderr */
+  dup2(1, oldFd[0]);
+  dup2(2, oldFd[1]);
+  pipe(newStdout.data());
+  pipe(newStderr.data());
+  dup2(newStdout[1], 1);
+  dup2(newStderr[1], 2);
+
+  /* spawn the logging thread */
+  auto newStdoutRedir =
+      std::thread(redir_worker, std::ref(newStdout), ANDROID_LOG_DEBUG);
+  auto newStderrRedir =
+      std::thread(redir_worker, std::ref(newStderr), ANDROID_LOG_WARN);
+  newStdoutRedir.detach();
+  newStderrRedir.detach();
+#endif
+
+  using namespace GmicQt;
+
+  std::list<GmicQt::InputMode> disabledInputModes;
+  disabledInputModes.push_back(GmicQt::InputMode::NoInput);
+  // disabledInputModes.push_back(GmicQt::Active);
+  // disabledInputModes.push_back(GmicQt::All);
+  // disabledInputModes.push_back(GmicQt::ActiveAndBelow);
+  // disabledInputModes.push_back(GmicQt::ActiveAndAbove);
+  disabledInputModes.push_back(GmicQt::InputMode::AllVisible);
+  disabledInputModes.push_back(GmicQt::InputMode::AllInvisible);
+
+  std::list<GmicQt::OutputMode> disabledOutputModes;
+  // disabledOutputModes.push_back(GmicQt::OutputMode::InPlace);
+  disabledOutputModes.push_back(GmicQt::OutputMode::NewImage);
+  disabledOutputModes.push_back(GmicQt::OutputMode::NewLayers);
+  disabledOutputModes.push_back(GmicQt::OutputMode::NewActiveLayers);
+
+  int status = 0;
+  GmicQtHost::iface = i;
+  if (headless) {
+    GmicQt::RunParameters parameters = GmicQt::lastAppliedFilterRunParameters(
+        GmicQt::ReturnedRunParametersFlag::AfterFilterExecution);
+    {
+      for (const GmicQt::InputMode & mode : disabledInputModes) {
+        GmicQt::InOutPanel::disableInputMode(mode);
+      }
+      for (const GmicQt::OutputMode & mode : disabledOutputModes) {
+        GmicQt::InOutPanel::disableOutputMode(mode);
+      }
+    }
+    Settings::load(GmicQt::UserInterfaceMode::ProgressDialog);
+    Logger::setMode(Settings::outputMessageMode());
+    LanguageSettings::installTranslators();
+
+    HeadlessProcessor processor(nullptr);
+    if (!processor.setPluginParameters(parameters)) {
+      Logger::error(processor.error());
+      return 1;
+    }
+
+    QPointer<ProgressInfoWindow> progressWindow(new ProgressInfoWindow(&processor));
+    // We want a non modal dialog here.
+    progressWindow->setWindowFlags(Qt::Tool | Qt::Dialog);
+    progressWindow->setWindowModality(Qt::ApplicationModal);
+    // Make it destroy itself on close (signaling the event loop)
+    progressWindow->setAttribute(Qt::WA_DeleteOnClose);
+
+    processor.startProcessing();
+
+    QEventLoop loop;
+    connect(progressWindow, SIGNAL(destroyed()), &loop, SLOT(quit()));
+    status = loop.exec();
+  } else {
+    GmicQt::RunParameters parameters = GmicQt::lastAppliedFilterRunParameters(
+        GmicQt::ReturnedRunParametersFlag::AfterFilterExecution);
+    {
+      for (const GmicQt::InputMode & mode : disabledInputModes) {
+        GmicQt::InOutPanel::disableInputMode(mode);
+      }
+      for (const GmicQt::OutputMode & mode : disabledOutputModes) {
+        GmicQt::InOutPanel::disableOutputMode(mode);
+      }
+    }
+    Settings::load(GmicQt::UserInterfaceMode::Full);
+    Logger::setMode(Settings::outputMessageMode());
+    LanguageSettings::installTranslators();
+
+    QPointer<MainWindow> mainWindow(new MainWindow(qApp->activeWindow()));
+    mainWindow->setPluginParameters(parameters);
+#ifdef Q_OS_MACOS
+    mainWindow->setWindowFlags(Qt::Tool | Qt::Dialog);
+#else
+    mainWindow->setWindowFlags(Qt::Dialog);
+#endif
+    mainWindow->setWindowModality(Qt::ApplicationModal);
+    // Make it destroy itself on close (signaling the event loop)
+    mainWindow->setAttribute(Qt::WA_DeleteOnClose);
+
+    if (GMIC_SETTINGS_INLINE.value("Config/MainWindowMaximized", false).toBool()) {
+      mainWindow->showMaximized();
+    } else {
+      mainWindow->show();
+    }
+
+    // Wait than main widget is closed.
+    QEventLoop loop;
+    connect(mainWindow, SIGNAL(destroyed()), &loop, SLOT(quit()));
+    status = loop.exec();
+  }
+
+  GmicQtHost::sharedMemorySegments.clear();
+  GmicQtHost::iface.reset();
+
+#ifdef Q_OS_ANDROID
+  /* un-redirect stdout and stderr */
+  dup2(oldFd[0], 1);
+  dup2(oldFd[1], 2);
+#endif
+
+  return status;
+}
+
+#include "gmicqttoolplugin.moc"
diff --git a/gmic-qt/src/Host/KritaPlugin/gmicqttoolplugin.h b/gmic-qt/src/Host/KritaPlugin/gmicqttoolplugin.h
new file mode 100644
index 0000000..bea9056
--- /dev/null
+++ b/gmic-qt/src/Host/KritaPlugin/gmicqttoolplugin.h
@@ -0,0 +1,55 @@
+/*
+ *  This file is part of G'MIC-Qt, a generic plug-in for raster graphics
+ *  editors, offering hundreds of filters thanks to the underlying G'MIC
+ *  image processing framework.
+ *
+ *  Copyright (C) 2020-2021 L. E. Segovia <amy@amyspark.me>
+ *
+ *  Description: Krita painting suite plugin for G'Mic-Qt.
+ *
+ *  G'MIC-Qt 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 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  G'MIC-Qt 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/>.
+ *
+ */
+
+#ifndef GMICQT_TOOL_PLUGIN_H
+#define GMICQT_TOOL_PLUGIN_H
+
+#include <QObject>
+#include <QSharedMemory>
+#include <QVector>
+#include <QtPlugin>
+#include <memory>
+
+#include <kis_qmic_interface.h>
+#include <kis_qmic_plugin_interface.h>
+
+namespace GmicQtHost
+{
+extern QVector<KisQMicImageSP> sharedMemorySegments;
+extern std::shared_ptr<KisImageInterface> iface;
+} // namespace GmicQtHost
+
+class KritaGmicPlugin : public QObject, public KisQmicPluginInterface
+{
+  Q_OBJECT
+  Q_INTERFACES(KisQmicPluginInterface)
+
+public:
+  KritaGmicPlugin(QObject *parent, const QVariantList &);
+
+  int launch(std::shared_ptr<KisImageInterface> iface,
+             bool headless = false) override;
+};
+
+#endif
diff --git a/gmic-qt/src/Host/KritaPlugin/gmicqttoolplugin.json b/gmic-qt/src/Host/KritaPlugin/gmicqttoolplugin.json
new file mode 100644
index 0000000..4639d5e
--- /dev/null
+++ b/gmic-qt/src/Host/KritaPlugin/gmicqttoolplugin.json
@@ -0,0 +1,9 @@
+{
+    "Id": "GMic-Qt Krita Plugin",
+    "Type": "Service",
+    "X-KDE-Library": "gmic_krita_qt",
+    "X-KDE-ServiceTypes": [
+        "Krita/GMic"
+    ],
+    "X-Krita-Version": "28"
+}
diff --git a/gmic-qt/src/Host/KritaPlugin/host.cpp b/gmic-qt/src/Host/KritaPlugin/host.cpp
new file mode 100644
index 0000000..fcfa12b
--- /dev/null
+++ b/gmic-qt/src/Host/KritaPlugin/host.cpp
@@ -0,0 +1,195 @@
+/*
+ * Copyright (C) 2017 Boudewijn Rempt <boud@valdyas.org>
+ * Copyright (C) 2020-2022 L. E. Segovia <amy@amyspark.me>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library 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
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public License
+ * along with this library; see the file COPYING.LIB.  If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#include <QByteArray>
+#include <QDebug>
+#include <QDesktopWidget>
+#include <QFileDialog>
+#include <QFileInfo>
+#include <QSharedMemory>
+#include <QStandardPaths>
+#include <QStringLiteral>
+#include <QUuid>
+#include <QVector>
+#include <algorithm>
+#include <memory>
+
+#include "GmicQt.h"
+#include "Host/GmicQtHost.h"
+#ifndef gmic_core
+#include "CImg.h"
+#endif
+#include "gmic.h"
+#include "kis_qmic_interface.h"
+
+/*
+ * No messages are sent in the plugin version of GMic.
+ * Instead, a list of KisQMicImageSP (shared pointers to KisQMic instances)
+ * are sent. These have:
+ *
+ * layer name
+ * shared pointer to data
+ * width
+ * height
+ * a mutex to control access.
+ *
+ * For the sake of debuggability, the overall control flow has been maintained.
+ */
+
+namespace GmicQtHost
+{
+const QString ApplicationName = QStringLiteral("Krita");
+const char *const ApplicationShortname = GMIC_QT_XSTRINGIFY(GMIC_HOST);
+const bool DarkThemeIsDefault = false;
+
+QVector<KisQMicImageSP> sharedMemorySegments;
+std::shared_ptr<KisImageInterface> iface;
+
+void getLayersExtent(int *width, int *height, GmicQt::InputMode mode)
+{
+#if defined(KRITA_QMIC_INTERFACE_VERSION) && KRITA_QMIC_INTERFACE_VERSION >= 0x05010001
+  const auto size = iface->gmic_qt_get_image_size(static_cast<int>(mode));
+#else
+  const auto size = iface->gmic_qt_get_image_size();
+#endif
+  *width = size.width();
+  *height = size.height();
+
+  // qDebug() << "gmic-qt: layers extent:" << *width << *height;
+}
+
+void getCroppedImages(gmic_list<float> &images,
+                      gmic_list<char> &imageNames,
+                      double x,
+                      double y,
+                      double width,
+                      double height,
+                      GmicQt::InputMode mode)
+{
+  // qDebug() << "gmic-qt: get_cropped_images:" << x << y << width << height;
+
+  const bool entireImage = x < 0 && y < 0 && width < 0 && height < 0;
+  if (entireImage) {
+    x = 0.0;
+    y = 0.0;
+    width = 1.0;
+    height = 1.0;
+  }
+
+  // Create a message for Krita
+  QRectF cropRect = {x, y, width, height};
+  auto imagesList =
+      iface->gmic_qt_get_cropped_images(static_cast<int>(mode), cropRect);
+
+  if (imagesList.isEmpty()) {
+    qWarning() << "\tgmic-qt: empty answer!";
+    return;
+  }
+
+  // qDebug() << "\tgmic-qt: " << answer;
+
+  images.assign(imagesList.size());
+  imageNames.assign(imagesList.size());
+
+  // qDebug() << "\tgmic-qt: imagelist size" << imagesList.size();
+
+  // Get the layers as prepared by Krita in G'Mic format
+  for (int i = 0; i < imagesList.length(); ++i) {
+    const auto &layer = imagesList[i];
+    const auto ba = layer->m_layerName.toUtf8();
+    gmic_image<char>::string(ba.data()).move_to(imageNames[i]);
+
+    // Fill images from the shared memory areas
+
+    {
+      QMutexLocker lock(&layer->m_mutex);
+
+      // qDebug() << "Memory segment" << (quintptr)image.data() << image->size()
+      // << (quintptr)&image->m_data << (quintptr)image->m_data.get();
+
+      // convert the data to the list of float
+      gmic_image<float> gimg;
+      gimg.assign(layer->m_width, layer->m_height, 1, 4);
+      const size_t length =
+          layer->m_width * layer->m_height * 4U * sizeof(float);
+      std::memcpy(gimg._data, layer->constData(), length);
+      gimg.move_to(images[i]);
+    }
+  }
+
+  iface->gmic_qt_detach();
+
+  // qDebug() << "\tgmic-qt:  Images size" << images.size() << ", names size" <<
+  // imageNames.size();
+}
+
+void outputImages(gmic_list<float> &images,
+                  const gmic_list<char> &imageNames,
+                  GmicQt::OutputMode mode)
+{
+  // qDebug() << "qmic-qt-output-images";
+
+  sharedMemorySegments.clear();
+
+  // qDebug() << "\tqmic-qt: shared memory" << sharedMemorySegments.count();
+
+  // Create qsharedmemory segments for each image
+  // Create a message for Krita based on mode, the keys of the qsharedmemory
+  // segments and the imageNames
+  QVector<KisQMicImageSP> layers;
+
+  for (uint i = 0; i < images.size(); ++i) {
+    // qDebug() << "\tgmic-qt: image number" << i;
+
+    gmic_image<float> gimg = images.at(i);
+
+    const auto layerName = QString::fromUtf8(imageNames[i].data());
+
+    KisQMicImageSP m = KisQMicImageSP::create(
+        layerName, gimg._width, gimg._height, gimg._spectrum);
+    sharedMemorySegments << m;
+
+    {
+      QMutexLocker lock(&m->m_mutex);
+
+      const auto slice = gimg.get_slice(0);
+
+      const auto length = slice._width * slice._height * slice._spectrum * sizeof(float);
+      std::memcpy(m->m_data, slice._data, length);
+    }
+
+    layers << m;
+  }
+
+  iface->gmic_qt_output_images(static_cast<int>(mode), layers);
+}
+
+void showMessage(const char *)
+{
+  // May be left empty for Krita.
+  // Only used by launchPluginHeadless(), called in the non-interactive
+  // script mode of GIMP.
+}
+
+void applyColorProfile(cimg_library::CImg<gmic_pixel_type> &)
+{
+}
+
+} // namespace GmicQtHost
diff --git a/gmic-qt/src/Host/None/JpegQualityDialog.cpp b/gmic-qt/src/Host/None/JpegQualityDialog.cpp
index 69635c6..00a7f95 100644
--- a/gmic-qt/src/Host/None/JpegQualityDialog.cpp
+++ b/gmic-qt/src/Host/None/JpegQualityDialog.cpp
@@ -2,6 +2,8 @@
 #include <QSettings>
 #include "Settings.h"
 #include "ui_jpegqualitydialog.h"
+#include "Globals.h"
+
 int JpegQualityDialog::_permanentQuality = -1;
 int JpegQualityDialog::_selectedQuality = -1;
 
@@ -15,7 +17,7 @@ JpegQualityDialog::JpegQualityDialog(QWidget * parent) : QDialog(parent), ui(new
   ui->spinBox->setRange(0, 100);
 
   if (_selectedQuality == -1) {
-    _selectedQuality = QSettings().value(JPEG_QUALITY_KEY, 85).toInt();
+    _selectedQuality = GMIC_SETTINGS_INLINE.value(JPEG_QUALITY_KEY, 85).toInt();
   }
 
   ui->slider->setValue(_selectedQuality);
@@ -25,7 +27,7 @@ JpegQualityDialog::JpegQualityDialog(QWidget * parent) : QDialog(parent), ui(new
   connect(ui->spinBox, QOverload<int>::of(&QSpinBox::valueChanged), ui->slider, &QSlider::setValue);
   connect(ui->pbOk, &QPushButton::clicked, [this]() {
     _selectedQuality = ui->spinBox->value();
-    QSettings().setValue(JPEG_QUALITY_KEY, _selectedQuality);
+    GMIC_SETTINGS_INLINE.setValue(JPEG_QUALITY_KEY, _selectedQuality);
   });
   connect(ui->pbOk, &QPushButton::clicked, this, &QDialog::accept);
   connect(ui->pbCancel, &QPushButton::clicked, this, &QDialog::reject);
diff --git a/gmic-qt/src/LanguageSettings.cpp b/gmic-qt/src/LanguageSettings.cpp
index 7e74667..0c92a47 100644
--- a/gmic-qt/src/LanguageSettings.cpp
+++ b/gmic-qt/src/LanguageSettings.cpp
@@ -23,6 +23,7 @@
  *
  */
 
+#include "Globals.h"
 #include "LanguageSettings.h"
 #include <QApplication>
 #include <QDebug>
@@ -66,7 +67,11 @@ const QMap<QString, QString> & LanguageSettings::availableLanguages()
 
 QString LanguageSettings::configuredTranslator()
 {
-  QString code = QSettings().value(LANGUAGE_CODE_KEY, QString()).toString();
+#ifndef _GMIC_QT_DISABLE_TRANSLATION_
+  QString code = GMIC_SETTINGS_INLINE.value(LANGUAGE_CODE_KEY, QString()).toString();
+#else
+  QString code;
+#endif
   if (code.isEmpty()) {
     code = systemDefaultAndAvailableLanguageCode();
     if (code.isEmpty()) {
@@ -105,7 +110,7 @@ void LanguageSettings::installTranslators()
   if (!lang.isEmpty() && (lang != "en")) {
     installQtTranslator(lang);
     installTranslator(QString(":/translations/%1.qm").arg(lang));
-    if (QSettings().value(ENABLE_FILTER_TRANSLATION, false).toBool()) {
+    if (GMIC_SETTINGS_INLINE.value(ENABLE_FILTER_TRANSLATION, false).toBool()) {
       installTranslator(QString(":/translations/filters/%1.qm").arg(lang));
     }
   }
diff --git a/gmic-qt/src/MainWindow.cpp b/gmic-qt/src/MainWindow.cpp
index d48e095..008d955 100644
--- a/gmic-qt/src/MainWindow.cpp
+++ b/gmic-qt/src/MainWindow.cpp
@@ -187,8 +187,12 @@ MainWindow::MainWindow(QWidget * parent) : QMainWindow(parent), ui(new Ui::MainW
     updateShortcutF5->setContext(Qt::ApplicationShortcut);
     QShortcut * updateShortcutCtrlR = new QShortcut(QKeySequence("Ctrl+R"), this);
     updateShortcutCtrlR->setContext(Qt::ApplicationShortcut);
+#ifdef _GMIC_QT_DISABLE_UPDATES_
+    ui->tbUpdateFilters->setEnabled(false);
+#else
     connect(updateShortcutF5, &QShortcut::activated, [this]() { ui->tbUpdateFilters->animateClick(); });
     connect(updateShortcutCtrlR, &QShortcut::activated, [this]() { ui->tbUpdateFilters->animateClick(); });
+#endif
     ui->tbUpdateFilters->setToolTip(updateText);
   }
 
@@ -275,6 +279,7 @@ void MainWindow::setIcons()
   ui->tbExpandCollapse->setIcon(_expandIcon);
 }
 
+#ifndef _GMIC_QT_DISABLE_THEMING_
 void MainWindow::setDarkTheme()
 {
   // SHOW(QStyleFactory::keys());
@@ -328,6 +333,7 @@ void MainWindow::setDarkTheme()
   ui->vSplitterLine->setStyleSheet("QFrame{ border-top: 0px none #a0a0a0; border-bottom: 1px solid rgb(160,160,160);}");
   Settings::UnselectedFilterTextColor = Settings::UnselectedFilterTextColor.darker(150);
 }
+#endif
 
 void MainWindow::setPluginParameters(const RunParameters & parameters)
 {
@@ -363,7 +369,9 @@ void MainWindow::onUpdateDownloadsFinished(int status)
     showMessage(tr("No download was needed."), 3000);
   }
 
+#ifndef _GMIC_QT_DISABLE_UPDATES_
   ui->tbUpdateFilters->setEnabled(true);
+#endif
   if (_filtersPresenter->currentFilter().hash.isEmpty()) {
     setNoFilter();
   } else {
@@ -385,7 +393,7 @@ void MainWindow::buildFiltersTree()
     _filtersPresenter->importGmicGTKFaves();
     _filtersPresenter->saveFaves();
     _gtkFavesShouldBeImported = false;
-    QSettings().setValue(FAVES_IMPORT_KEY, true);
+    GMIC_SETTINGS_INLINE.setValue(FAVES_IMPORT_KEY, true);
   }
   _filtersPresenter->toggleSelectionMode(withVisibility);
 }
@@ -493,7 +501,7 @@ void MainWindow::onStartupFiltersUpdateFinished(int status)
   } else if (status == (int)Updater::UpdateStatus::NotNecessary) {
   }
 
-  if (QSettings().value(FAVES_IMPORT_KEY, false).toBool() || !FavesModelReader::gmicGTKFaveFileAvailable()) {
+  if (GMIC_SETTINGS_INLINE.value(FAVES_IMPORT_KEY, false).toBool() || !FavesModelReader::gmicGTKFaveFileAvailable()) {
     _gtkFavesShouldBeImported = false;
   } else {
     _gtkFavesShouldBeImported = askUserForGTKFavesImport();
@@ -511,7 +519,7 @@ void MainWindow::onStartupFiltersUpdateFinished(int status)
   }
 
   // Retrieve and select previously selected filter
-  QString hash = QSettings().value("SelectedFilter", QString()).toString();
+  QString hash = GMIC_SETTINGS_INLINE.value("SelectedFilter", QString()).toString();
   if (_newSession || !_lastExecutionOK) {
     hash.clear();
   }
@@ -576,7 +584,9 @@ void MainWindow::onEscapeKeyPressed()
     } else {
       _processor.cancel();
       ui->previewWidget->displayOriginalImage();
+#ifndef _GMIC_QT_DISABLE_UPDATES_
       ui->tbUpdateFilters->setEnabled(true);
+#endif
     }
   }
 }
@@ -696,7 +706,9 @@ void MainWindow::onPreviewUpdateRequested(bool synchronous, bool randomized)
     ui->previewWidget->invalidateSavedPreview();
     return;
   }
+#ifndef _GMIC_QT_DISABLE_UPDATES_
   ui->tbUpdateFilters->setEnabled(false);
+#endif
   _processor.init();
   GmicProcessor::FilterContext context;
   if (!ui->cbPreview->isChecked()) {
@@ -764,7 +776,9 @@ void MainWindow::onPreviewImageAvailable()
   }
   ui->previewWidget->setPreviewImage(_processor.previewImage());
   ui->previewWidget->enableRightClick();
+#ifndef _GMIC_QT_DISABLE_UPDATES_
   ui->tbUpdateFilters->setEnabled(true);
+#endif
 }
 
 void MainWindow::onGUIDynamismRunDone()
@@ -779,9 +793,19 @@ void MainWindow::onGUIDynamismRunDone()
 
 void MainWindow::onPreviewError(const QString & message)
 {
+  // if Krita is too busy generating the images, restart the
+  // the preview process
+  if (_processor.isInputImagesEmpty()) {
+      CroppedImageListProxy::clear();
+      QTimer::singleShot(1000, ui->previewWidget, SLOT(sendUpdateRequest()));
+      return;
+  }
+
   ui->previewWidget->setPreviewErrorMessage(message);
   ui->previewWidget->enableRightClick();
+#ifndef _GMIC_QT_DISABLE_UPDATES_
   ui->tbUpdateFilters->setEnabled(true);
+#endif
 }
 
 void MainWindow::onParametersChanged()
@@ -864,12 +888,16 @@ void MainWindow::onVeryFirstShowEvent()
   Updater::setOutputMessageMode(Settings::outputMessageMode());
   int ageLimit;
   {
-    QSettings settings;
+    GMIC_SETTINGS(settings);
     ageLimit = settings.value(INTERNET_UPDATE_PERIODICITY_KEY, INTERNET_DEFAULT_PERIODICITY).toInt();
   }
+#ifndef _GMIC_QT_DISABLE_UPDATES_
   const bool useNetwork = (ageLimit != INTERNET_NEVER_UPDATE_PERIODICITY);
+#else
+  const bool useNetwork = false;
+#endif
   ui->progressInfoWidget->startFiltersUpdateAnimationAndShow();
-  Updater::getInstance()->startUpdate(ageLimit, 4, useNetwork);
+  Updater::getInstance()->startUpdate(ageLimit, 60, useNetwork);
 }
 
 void MainWindow::setZoomConstraint()
@@ -1019,7 +1047,7 @@ void MainWindow::saveCurrentParameters()
 
 void MainWindow::saveSettings()
 {
-  QSettings settings;
+  GMIC_SETTINGS(settings);
 
   _filtersPresenter->saveSettings(settings);
 
@@ -1061,7 +1089,7 @@ void MainWindow::saveSettings()
 
 void MainWindow::loadSettings()
 {
-  QSettings settings;
+  GMIC_SETTINGS(settings);
   _filtersPresenter->loadSettings(settings);
   _lastExecutionOK = settings.value("LastExecution/ExitedNormally", true).toBool();
   _newSession = host_app_pid() != settings.value("LastExecution/HostApplicationID", 0).toUInt();
@@ -1076,9 +1104,11 @@ void MainWindow::loadSettings()
   if (settings.value("Config/PreviewPosition", "Left").toString() == "Left") {
     setPreviewPosition(PreviewPosition::Left);
   }
+#ifndef _GMIC_QT_DISABLE_THEMING_
   if (Settings::darkThemeEnabled()) {
     setDarkTheme();
   }
+#endif
   if (!Settings::visibleLogos()) {
     ui->logosLabel->hide();
   }
@@ -1122,7 +1152,7 @@ void MainWindow::loadSettings()
     ui->splitter->setSizes(sizes);
   }
 
-  ui->cbInternetUpdate->setChecked(settings.value("Config/RefreshInternetUpdate", true).toBool());
+  ui->cbInternetUpdate->setChecked(settings.value(REFRESH_USING_INTERNET_KEY, INTERNET_DEFAULT_REFRESH_UPDATE).toBool());
 }
 
 void MainWindow::setPreviewPosition(MainWindow::PreviewPosition position)
@@ -1184,7 +1214,7 @@ void MainWindow::setPreviewPosition(MainWindow::PreviewPosition position)
 void MainWindow::adjustVerticalSplitter()
 {
   QList<int> sizes;
-  QSettings settings;
+  GMIC_SETTINGS(settings);
   sizes.push_back(settings.value(QString("Config/ParamsVerticalSplitterSizeTop"), -1).toInt());
   sizes.push_back(settings.value(QString("Config/ParamsVerticalSplitterSizeBottom"), -1).toInt());
   const int splitterHeight = ui->verticalSplitter->height();
@@ -1315,17 +1345,19 @@ bool MainWindow::askUserForGTKFavesImport()
                          QMessageBox::Yes | QMessageBox::No, this);
   messageBox.setDefaultButton(QMessageBox::Yes);
   QCheckBox * cb = new QCheckBox(tr("Don't ask again"));
+#ifndef _GMIC_QT_DISABLE_THEMING_
   if (Settings::darkThemeEnabled()) {
     QPalette p = cb->palette();
     p.setColor(QPalette::Text, Settings::CheckBoxTextColor);
     p.setColor(QPalette::Base, Settings::CheckBoxBaseColor);
     cb->setPalette(p);
   }
+#endif
   messageBox.setCheckBox(cb);
   int choice = messageBox.exec();
   if (choice != QMessageBox::Yes) {
     if (cb->isChecked()) {
-      QSettings().setValue(FAVES_IMPORT_KEY, true);
+      GMIC_SETTINGS_INLINE.setValue(FAVES_IMPORT_KEY, true);
     }
     return false;
   }
diff --git a/gmic-qt/src/MainWindow.h b/gmic-qt/src/MainWindow.h
index e7ed69d..ea16e23 100644
--- a/gmic-qt/src/MainWindow.h
+++ b/gmic-qt/src/MainWindow.h
@@ -70,7 +70,9 @@ public:
   explicit MainWindow(QWidget * parent = nullptr);
   ~MainWindow() override;
   void updateFiltersFromSources(int ageLimit, bool useNetwork);
+#ifndef _GMIC_QT_DISABLE_THEMING_
   void setDarkTheme();
+#endif
   void setPluginParameters(const RunParameters & parameters);
 
 public slots:
diff --git a/gmic-qt/src/Settings.cpp b/gmic-qt/src/Settings.cpp
index 4764218..6e91e78 100644
--- a/gmic-qt/src/Settings.cpp
+++ b/gmic-qt/src/Settings.cpp
@@ -77,7 +77,7 @@ QString Settings::NegativeSign('-');
 
 void Settings::load(UserInterfaceMode userInterfaceMode)
 {
-  QSettings settings;
+  GMIC_SETTINGS(settings);
   _visibleLogos = settings.value("LogosAreVisible", true).toBool();
   _darkThemeEnabled = settings.value(DARK_THEME_KEY, GmicQtHost::DarkThemeIsDefault).toBool();
   _languageCode = settings.value(LANGUAGE_CODE_KEY, QString()).toString();
@@ -131,7 +131,11 @@ void Settings::setVisibleLogos(bool on)
 
 bool Settings::darkThemeEnabled()
 {
-  return _darkThemeEnabled;
+#ifdef _GMIC_QT_DISABLE_THEMING_
+  return GmicQtHost::DarkThemeIsDefault;
+#else
+   return _darkThemeEnabled;
+#endif
 }
 
 void Settings::setDarkThemeEnabled(bool on)
@@ -273,8 +277,10 @@ void Settings::save(QSettings & settings)
 {
   removeObsoleteKeys(settings);
   settings.setValue("LogosAreVisible", _visibleLogos);
+#ifndef _GMIC_QT_DISABLE_TRANSLATION_
   settings.setValue(LANGUAGE_CODE_KEY, _languageCode);
   settings.setValue(ENABLE_FILTER_TRANSLATION, _filterTranslationEnabled);
+#endif
   settings.setValue("Config/PreviewPosition", (_previewPosition == MainWindow::PreviewPosition::Left) ? "Left" : "Right");
 
   settings.setValue("Config/NativeColorDialogs", _nativeColorDialogs);
diff --git a/gmic-qt/src/Tags.cpp b/gmic-qt/src/Tags.cpp
index fae4d99..d3140e0 100644
--- a/gmic-qt/src/Tags.cpp
+++ b/gmic-qt/src/Tags.cpp
@@ -26,6 +26,7 @@
 #include <QAction>
 #include <QBuffer>
 #include <QByteArray>
+#include <QCoreApplication>
 #include <QDebug>
 #include <QIcon>
 #include <QImage>
@@ -148,7 +149,10 @@ QAction * TagAssets::action(QObject * parent, TagColor color, IconMark mark)
   if ((color == TagColor::None) || (color == TagColor::Count)) {
     return nullptr;
   }
-  return new QAction(menuIcon(color, mark), QObject::tr("%1 Tag").arg(colorName(color)), parent);
+  QAction *action = new QAction(menuIcon(color, mark), QObject::tr("%1 Tag").arg(colorName(color)), parent);
+  if (qApp->testAttribute(Qt::AA_DontShowIconsInMenus))
+    action->setIconVisibleInMenu(true);
+  return action;
 }
 
 QString TagAssets::colorName(TagColor color)
diff --git a/gmic-qt/src/Widgets/InOutPanel.cpp b/gmic-qt/src/Widgets/InOutPanel.cpp
index 2a30f99..535ba84 100644
--- a/gmic-qt/src/Widgets/InOutPanel.cpp
+++ b/gmic-qt/src/Widgets/InOutPanel.cpp
@@ -157,10 +157,12 @@ void InOutPanel::onResetButtonClicked()
   setState(InputOutputState::Default, true);
 }
 
+#ifndef _GMIC_QT_DISABLE_THEMING_
 void InOutPanel::setDarkTheme()
 {
   ui->tbReset->setIcon(IconLoader::load("view-refresh"));
 }
+#endif
 
 void InOutPanel::setDefaultInputMode()
 {
diff --git a/gmic-qt/src/Widgets/InOutPanel.h b/gmic-qt/src/Widgets/InOutPanel.h
index 381bc64..7939d3a 100644
--- a/gmic-qt/src/Widgets/InOutPanel.h
+++ b/gmic-qt/src/Widgets/InOutPanel.h
@@ -79,7 +79,9 @@ public slots:
   void onInputModeSelected(int);
   void onOutputModeSelected(int);
   void onResetButtonClicked();
+#ifndef _GMIC_QT_DISABLE_THEMING_
   void setDarkTheme();
+#endif
 
 private:
   static void setDefaultInputMode();
diff --git a/gmic-qt/src/Widgets/ProgressInfoWindow.cpp b/gmic-qt/src/Widgets/ProgressInfoWindow.cpp
index 533d257..604cf47 100644
--- a/gmic-qt/src/Widgets/ProgressInfoWindow.cpp
+++ b/gmic-qt/src/Widgets/ProgressInfoWindow.cpp
@@ -59,9 +59,11 @@ ProgressInfoWindow::ProgressInfoWindow(HeadlessProcessor * processor) : QMainWin
   connect(processor, &HeadlessProcessor::done, this, &ProgressInfoWindow::onProcessingFinished);
   _isShown = false;
 
+#ifndef _GMIC_QT_DISABLE_THEMING_
   if (Settings::darkThemeEnabled()) {
     setDarkTheme();
   }
+#endif
 }
 
 ProgressInfoWindow::~ProgressInfoWindow()
@@ -85,6 +87,7 @@ void ProgressInfoWindow::closeEvent(QCloseEvent * event)
   event->accept();
 }
 
+#ifndef _GMIC_QT_DISABLE_THEMING_
 void ProgressInfoWindow::setDarkTheme()
 {
   qApp->setStyle(QStyleFactory::create("Fusion"));
@@ -107,6 +110,7 @@ void ProgressInfoWindow::setDarkTheme()
   p.setColor(QPalette::Disabled, QPalette::WindowText, QColor(110, 110, 110));
   qApp->setPalette(p);
 }
+#endif
 
 void ProgressInfoWindow::onCancelClicked(bool)
 {
diff --git a/gmic-qt/src/Widgets/ProgressInfoWindow.h b/gmic-qt/src/Widgets/ProgressInfoWindow.h
index 615dd16..9db9a1a 100644
--- a/gmic-qt/src/Widgets/ProgressInfoWindow.h
+++ b/gmic-qt/src/Widgets/ProgressInfoWindow.h
@@ -57,7 +57,9 @@ public:
 protected:
   void showEvent(QShowEvent *) override;
   void closeEvent(QCloseEvent *) override;
+#ifndef _GMIC_QT_DISABLE_THEMING_
   void setDarkTheme();
+#endif
 
 public slots:
   void onCancelClicked(bool);
diff --git a/gmic-qt/ui/dialogsettings.ui b/gmic-qt/ui/dialogsettings.ui
index 10b7ec8..f03ef4c 100644
--- a/gmic-qt/ui/dialogsettings.ui
+++ b/gmic-qt/ui/dialogsettings.ui
@@ -108,7 +108,7 @@
         </widget>
        </item>
        <item row="0" column="1">
-        <widget class="QGroupBox" name="groupBox_3">
+        <widget class="QGroupBox" name="groupBoxTheme">
          <property name="title">
           <string>Theme</string>
          </property>
-- 
2.45.2