ClangTools: Add diagnostic mark class

These marks can now be disabled.
This greys out the annotation color and the icon of the mark.

Change-Id: I5af4591db4baaaef55c986252f77d5d977427b56
Reviewed-by: Christian Stenger <christian.stenger@qt.io>

src/plugins/clangtools/diagnosticmark.cpp

@@ -0,0 +1,72 @@
+/****************************************************************************
+**
+** Copyright (C) 2020 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of Qt Creator.
+**
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3 as published by the Free Software
+** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
+** included in the packaging of this file. Please review the following
+** information to ensure the GNU General Public License requirements will
+** be met: https://www.gnu.org/licenses/gpl-3.0.html.
+**
+****************************************************************************/
+
+#include "diagnosticmark.h"
+
+#include "clangtoolsutils.h"
+
+#include <utils/utilsicons.h>
+
+namespace ClangTools {
+namespace Internal {
+
+DiagnosticMark::DiagnosticMark(const Diagnostic &diagnostic)
+    : TextEditor::TextMark(Utils::FilePath::fromString(diagnostic.location.filePath),
+                           diagnostic.location.line,
+                           Utils::Id("ClangTool.DiagnosticMark"))
+    , m_diagnostic(diagnostic)
+{
+    if (diagnostic.type == "error" || diagnostic.type == "fatal")
+        setColor(Utils::Theme::CodeModel_Error_TextMarkColor);
+    else
+        setColor(Utils::Theme::CodeModel_Warning_TextMarkColor);
+    setPriority(TextEditor::TextMark::HighPriority);
+    QIcon markIcon = diagnostic.icon();
+    setIcon(markIcon.isNull() ? Utils::Icons::CODEMODEL_WARNING.icon() : markIcon);
+    setToolTip(createDiagnosticToolTipString(diagnostic, Utils::nullopt,  true));
+    setLineAnnotation(diagnostic.description);
+}
+
+void DiagnosticMark::disable()
+{
+    if (!m_enabled)
+        return;
+    m_enabled = false;
+    if (m_diagnostic.type == "error" || m_diagnostic.type == "fatal")
+        setIcon(Utils::Icons::CODEMODEL_DISABLED_ERROR.icon());
+    else
+        setIcon(Utils::Icons::CODEMODEL_DISABLED_WARNING.icon());
+    setColor(Utils::Theme::Color::IconsDisabledColor);
+    updateMarker();
+}
+
+bool DiagnosticMark::enabled() const
+{
+    return m_enabled;
+}
+
+} // namespace Internal
+} // namespace ClangTools
+