ClangFormat: Grey out Clang-Format Style config when not overridden

Add feature to grey out the Clang-Format Style configuration widget
after unchecking the 'Override' checkbox.

Change-Id: I94bbb1f4436f3caeaed55d49582211257e480d0d
Reviewed-by: <github-actions-qt-creator@cristianadam.eu>
Reviewed-by: Christian Kandeler <christian.kandeler@qt.io>

src/plugins/clangformat/clangformatconfigwidget.cpp

@@ -89,7 +89,8 @@ ClangFormatConfigWidget::ClangFormatConfigWidget(TextEditor::ICodeStylePreferenc
 
     d->checksScrollArea->setWidget(d->checksWidget);
     d->checksScrollArea->setWidgetResizable(true);
-    d->checksWidget->setEnabled(!codeStyle->isReadOnly());
+    d->checksWidget->setEnabled(!codeStyle->isReadOnly()
+                                && !codeStyle->isTemporarilyReadOnly());
 
     FilePath fileName;
     if (d->project)
@@ -140,7 +141,8 @@ void ClangFormatConfigWidget::slotCodeStyleChanged(
     d->config->setIsReadOnly(codeStyle->isReadOnly());
     d->style = d->config->style();
 
-    d->checksWidget->setEnabled(!codeStyle->isReadOnly());
+    d->checksWidget->setEnabled(!codeStyle->isReadOnly()
+                                && !codeStyle->isTemporarilyReadOnly());
 
     fillTable();
     updatePreview();

src/plugins/clangformat/clangformatglobalconfigwidget.cpp

@@ -9,6 +9,7 @@
 #include "clangformatutils.h"
 
 #include <projectexplorer/project.h>
+#include <texteditor/icodestylepreferences.h>
 
 #include <utils/layoutbuilder.h>
 
@@ -24,10 +25,11 @@ using namespace Utils;
 
 namespace ClangFormat {
 
-ClangFormatGlobalConfigWidget::ClangFormatGlobalConfigWidget(ProjectExplorer::Project *project,
-                                                             QWidget *parent)
+ClangFormatGlobalConfigWidget::ClangFormatGlobalConfigWidget(
+    TextEditor::ICodeStylePreferences *codeStyle, ProjectExplorer::Project *project, QWidget *parent)
     : CppCodeStyleWidget(parent)
     , m_project(project)
+    , m_codeStyle(codeStyle)
 {
     resize(489, 305);
 
@@ -164,10 +166,19 @@ void ClangFormatGlobalConfigWidget::initOverrideCheckBox()
         Tr::tr("Override Clang Format configuration file with the chosen configuration."));
 
     m_overrideDefault->setChecked(getProjectOverriddenSettings(m_project));
+    m_codeStyle->currentPreferences()->setTemporarilyReadOnly(!m_overrideDefault->isChecked());
 
     connect(m_overrideDefault, &QCheckBox::toggled, this, [this](bool checked) {
         if (m_project)
             m_project->setNamedSettings(Constants::OVERRIDE_FILE_ID, checked);
+        else {
+            m_codeStyle->currentPreferences()->setTemporarilyReadOnly(!checked);
+            emit m_codeStyle->currentPreferencesChanged(m_codeStyle->currentPreferences());
+        }
+    });
+
+    connect(m_codeStyle, &TextEditor::ICodeStylePreferences::currentPreferencesChanged, this, [this] {
+        m_codeStyle->currentPreferences()->setTemporarilyReadOnly(!m_overrideDefault->isChecked());
     });
 }
 

src/plugins/clangformat/clangformatglobalconfigwidget.h

@@ -14,6 +14,7 @@ class QLabel;
 QT_END_NAMESPACE
 
 namespace ProjectExplorer { class Project; }
+namespace TextEditor { class ICodeStylePreferences; }
 
 namespace ClangFormat {
 
@@ -22,7 +23,8 @@ class ClangFormatGlobalConfigWidget : public CppEditor::CppCodeStyleWidget
     Q_OBJECT
 
 public:
-    explicit ClangFormatGlobalConfigWidget(ProjectExplorer::Project *project = nullptr,
+    explicit ClangFormatGlobalConfigWidget(TextEditor::ICodeStylePreferences *codeStyle,
+                                           ProjectExplorer::Project *project = nullptr,
                                            QWidget *parent = nullptr);
     ~ClangFormatGlobalConfigWidget() override;
     void apply() override;
@@ -36,6 +38,7 @@ private:
     bool projectClangFormatFileExists();
 
     ProjectExplorer::Project *m_project;
+    TextEditor::ICodeStylePreferences *m_codeStyle;
 
     QLabel *m_projectHasClangFormat;
     QLabel *m_formattingModeLabel;

src/plugins/clangformat/clangformatplugin.cpp

@@ -51,9 +51,9 @@ public:
     }
 
     CodeStyleEditorWidget *createAdditionalGlobalSettings(
-        Project *project, QWidget *parent) override
+        ICodeStylePreferences *codeStyle, Project *project, QWidget *parent) override
     {
-        return new ClangFormatGlobalConfigWidget(project, parent);
+        return new ClangFormatGlobalConfigWidget(codeStyle, project, parent);
     }
 };