Allow users to suppress diagnostics.

This patch deals with what is likely the most common use case:
Filtering specific messages at a particular location. The current
granularity is essentially per-file (and per-function, where possible),
which seems more useful than taking line numbers into
account, as that would not be robust with regards to code changes elsewhere
in the file. We can fine-tune this if the need arises.

Change-Id: I4e9b2671fa199339cc3b995953d072b840cd3205
Reviewed-by: Nikolai Kosjar <nikolai.kosjar@theqtcompany.com>

16 files changed, 808 insertions, 10 deletions

diff --git a/plugins/clangstaticanalyzer/clangstaticanalyzer.pro b/plugins/clangstaticanalyzer/clangstaticanalyzer.pro
index 38ddda3e64..67eb90ad41 100644
--- a/plugins/clangstaticanalyzer/clangstaticanalyzer.pro
+++ b/plugins/clangstaticanalyzer/clangstaticanalyzer.pro
@@ -12,6 +12,9 @@ SOURCES += \
     clangstaticanalyzerlogfilereader.cpp \
     clangstaticanalyzerpathchooser.cpp \
     clangstaticanalyzerplugin.cpp \
+    clangstaticanalyzerprojectsettings.cpp \
+    clangstaticanalyzerprojectsettingsmanager.cpp \
+    clangstaticanalyzerprojectsettingswidget.cpp \
     clangstaticanalyzerruncontrol.cpp \
     clangstaticanalyzerruncontrolfactory.cpp \
     clangstaticanalyzerrunner.cpp \
@@ -29,6 +32,9 @@ HEADERS += \
     clangstaticanalyzerlogfilereader.h \
     clangstaticanalyzerpathchooser.h \
     clangstaticanalyzerplugin.h \
+    clangstaticanalyzerprojectsettings.h \
+    clangstaticanalyzerprojectsettingsmanager.h \
+    clangstaticanalyzerprojectsettingswidget.h \
     clangstaticanalyzerruncontrolfactory.h \
     clangstaticanalyzerruncontrol.h \
     clangstaticanalyzerrunner.h \
@@ -37,7 +43,8 @@ HEADERS += \
     clangstaticanalyzerutils.h
 
 FORMS += \
-    clangstaticanalyzerconfigwidget.ui
+    clangstaticanalyzerconfigwidget.ui \
+    clangstaticanalyzerprojectsettingswidget.ui
 
 equals(TEST, 1) {
     HEADERS += clangstaticanalyzerunittests.h
diff --git a/plugins/clangstaticanalyzer/clangstaticanalyzer.qbs b/plugins/clangstaticanalyzer/clangstaticanalyzer.qbs
index 9113cc94c3..a97dc9f83c 100644
--- a/plugins/clangstaticanalyzer/clangstaticanalyzer.qbs
+++ b/plugins/clangstaticanalyzer/clangstaticanalyzer.qbs
@@ -32,6 +32,13 @@ QtcPlugin {
         "clangstaticanalyzerpathchooser.h",
         "clangstaticanalyzerplugin.cpp",
         "clangstaticanalyzerplugin.h",
+        "clangstaticanalyzerprojectsettings.cpp",
+        "clangstaticanalyzerprojectsettings.h",
+        "clangstaticanalyzerprojectsettingsmanager.cpp",
+        "clangstaticanalyzerprojectsettingsmanager.h",
+        "clangstaticanalyzerprojectsettingswidget.cpp",
+        "clangstaticanalyzerprojectsettingswidget.h",
+        "clangstaticanalyzerprojectsettingswidget.ui",
         "clangstaticanalyzerruncontrol.cpp",
         "clangstaticanalyzerruncontrol.h",
         "clangstaticanalyzerruncontrolfactory.cpp",
diff --git a/plugins/clangstaticanalyzer/clangstaticanalyzerdiagnosticmodel.cpp b/plugins/clangstaticanalyzer/clangstaticanalyzerdiagnosticmodel.cpp
index 5f1d21fb9f..40f5924442 100644
--- a/plugins/clangstaticanalyzer/clangstaticanalyzerdiagnosticmodel.cpp
+++ b/plugins/clangstaticanalyzer/clangstaticanalyzerdiagnosticmodel.cpp
@@ -18,9 +18,15 @@
 
 #include "clangstaticanalyzerdiagnosticmodel.h"
 
+#include "clangstaticanalyzerprojectsettingsmanager.h"
 #include "clangstaticanalyzerutils.h"
 
+#include <projectexplorer/project.h>
+#include <projectexplorer/session.h>
+#include <utils/qtcassert.h>
+
 #include <QCoreApplication>
+#include <QFileInfo>
 
 namespace ClangStaticAnalyzer {
 namespace Internal {
@@ -118,5 +124,70 @@ QVariant ClangStaticAnalyzerDiagnosticModel::data(const QModelIndex &index, int
     return QVariant();
 }
 
+
+ClangStaticAnalyzerDiagnosticFilterModel::ClangStaticAnalyzerDiagnosticFilterModel(QObject *parent)
+    : QSortFilterProxyModel(parent)
+{
+    // So that when a user closes and re-opens a project and *then* clicks "Suppress",
+    // we enter that information into the project settings.
+    connect(ProjectExplorer::SessionManager::instance(),
+            &ProjectExplorer::SessionManager::projectAdded, this,
+            [this](ProjectExplorer::Project *project) {
+                if (!m_project && project->projectDirectory() == m_lastProjectDirectory)
+                    setProject(project);
+            });
+}
+
+void ClangStaticAnalyzerDiagnosticFilterModel::setProject(ProjectExplorer::Project *project)
+{
+    QTC_ASSERT(project, return);
+    if (m_project) {
+        disconnect(ProjectSettingsManager::getSettings(m_project),
+                   &ProjectSettings::suppressedDiagnosticsChanged, this,
+                   &ClangStaticAnalyzerDiagnosticFilterModel::handleSuppressedDiagnosticsChanged);
+    }
+    m_project = project;
+    m_lastProjectDirectory = m_project->projectDirectory();
+    connect(ProjectSettingsManager::getSettings(m_project),
+            &ProjectSettings::suppressedDiagnosticsChanged,
+            this, &ClangStaticAnalyzerDiagnosticFilterModel::handleSuppressedDiagnosticsChanged);
+    handleSuppressedDiagnosticsChanged();
+}
+
+void ClangStaticAnalyzerDiagnosticFilterModel::addSuppressedDiagnostic(
+        const SuppressedDiagnostic &diag)
+{
+    QTC_ASSERT(!m_project, return);
+    m_suppressedDiagnostics << diag;
+    invalidate();
+}
+
+bool ClangStaticAnalyzerDiagnosticFilterModel::filterAcceptsRow(int sourceRow,
+        const QModelIndex &sourceParent) const
+{
+    Q_UNUSED(sourceParent);
+    const Diagnostic diag = static_cast<ClangStaticAnalyzerDiagnosticModel *>(sourceModel())
+            ->diagnostics().at(sourceRow);
+    foreach (const SuppressedDiagnostic &d, m_suppressedDiagnostics) {
+        if (d.description != diag.description)
+            continue;
+        QString filePath = d.filePath.toString();
+        QFileInfo fi(filePath);
+        if (fi.isRelative())
+            filePath = m_lastProjectDirectory.toString() + QLatin1Char('/') + filePath;
+        if (filePath == diag.location.filePath)
+            return false;
+    }
+    return true;
+}
+
+void ClangStaticAnalyzerDiagnosticFilterModel::handleSuppressedDiagnosticsChanged()
+{
+    QTC_ASSERT(m_project, return);
+    m_suppressedDiagnostics
+            = ProjectSettingsManager::getSettings(m_project)->suppressedDiagnostics();
+    invalidate();
+}
+
 } // namespace Internal
 } // namespace ClangStaticAnalyzer
diff --git a/plugins/clangstaticanalyzer/clangstaticanalyzerdiagnosticmodel.h b/plugins/clangstaticanalyzer/clangstaticanalyzerdiagnosticmodel.h
index 68dcf7ed05..a2dc49c26c 100644
--- a/plugins/clangstaticanalyzer/clangstaticanalyzerdiagnosticmodel.h
+++ b/plugins/clangstaticanalyzer/clangstaticanalyzerdiagnosticmodel.h
@@ -20,8 +20,15 @@
 #define CLANGSTATICANALYZERDIAGNOSTICMODEL_H
 
 #include "clangstaticanalyzerlogfilereader.h"
+#include "clangstaticanalyzerprojectsettings.h"
+
+#include <utils/fileutils.h>
 
 #include <QAbstractListModel>
+#include <QPointer>
+#include <QSortFilterProxyModel>
+
+namespace ProjectExplorer { class Project; }
 
 namespace ClangStaticAnalyzer {
 namespace Internal {
@@ -45,6 +52,26 @@ private:
     QList<Diagnostic> m_diagnostics;
 };
 
+class ClangStaticAnalyzerDiagnosticFilterModel : public QSortFilterProxyModel
+{
+    Q_OBJECT
+
+public:
+    ClangStaticAnalyzerDiagnosticFilterModel(QObject *parent = 0);
+
+    void setProject(ProjectExplorer::Project *project);
+    void addSuppressedDiagnostic(const SuppressedDiagnostic &diag);
+    ProjectExplorer::Project *project() const { return m_project; }
+
+private:
+    bool filterAcceptsRow(int sourceRow, const QModelIndex &sourceParent) const;
+    void handleSuppressedDiagnosticsChanged();
+
+    QPointer<ProjectExplorer::Project> m_project;
+    Utils::FileName m_lastProjectDirectory;
+    SuppressedDiagnosticsList m_suppressedDiagnostics;
+};
+
 } // namespace Internal
 } // namespace ClangStaticAnalyzer
 
diff --git a/plugins/clangstaticanalyzer/clangstaticanalyzerdiagnosticview.cpp b/plugins/clangstaticanalyzer/clangstaticanalyzerdiagnosticview.cpp
index 54c8ef5a53..f1805f2da2 100644
--- a/plugins/clangstaticanalyzer/clangstaticanalyzerdiagnosticview.cpp
+++ b/plugins/clangstaticanalyzer/clangstaticanalyzerdiagnosticview.cpp
@@ -19,10 +19,15 @@
 #include "clangstaticanalyzerdiagnosticview.h"
 
 #include "clangstaticanalyzerlogfilereader.h"
+#include "clangstaticanalyzerdiagnosticmodel.h"
+#include "clangstaticanalyzerprojectsettings.h"
+#include "clangstaticanalyzerprojectsettingsmanager.h"
 #include "clangstaticanalyzerutils.h"
 
+#include <utils/fileutils.h>
 #include <utils/qtcassert.h>
 
+#include <QAction>
 #include <QCoreApplication>
 #include <QDebug>
 #include <QFileInfo>
@@ -196,13 +201,18 @@ DetailedErrorDelegate::SummaryLineInfo ClangStaticAnalyzerDiagnosticDelegate::su
     return info;
 }
 
+Diagnostic ClangStaticAnalyzerDiagnosticDelegate::getDiagnostic(const QModelIndex &index) const
+{
+    return index.data(Qt::UserRole).value<Diagnostic>();
+}
+
 QWidget *ClangStaticAnalyzerDiagnosticDelegate::createDetailsWidget(const QFont &font,
                                                                     const QModelIndex &index,
                                                                     QWidget *parent) const
 {
     QWidget *widget = new QWidget(parent);
 
-    const Diagnostic diagnostic = index.data(Qt::UserRole).value<Diagnostic>();
+    const Diagnostic diagnostic = getDiagnostic(index);
     if (!diagnostic.isValid())
         return widget;
 
@@ -240,7 +250,7 @@ QString ClangStaticAnalyzerDiagnosticDelegate::textualRepresentation() const
 {
     QTC_ASSERT(m_detailsIndex.isValid(), return QString());
 
-    const Diagnostic diagnostic = m_detailsIndex.data(Qt::UserRole).value<Diagnostic>();
+    const Diagnostic diagnostic = getDiagnostic(m_detailsIndex);
     QTC_ASSERT(diagnostic.isValid(), return QString());
 
     // Create summary
@@ -268,6 +278,39 @@ ClangStaticAnalyzerDiagnosticView::ClangStaticAnalyzerDiagnosticView(QWidget *pa
     ClangStaticAnalyzerDiagnosticDelegate *delegate
             = new ClangStaticAnalyzerDiagnosticDelegate(this);
     setItemDelegate(delegate);
+    m_suppressAction = new QAction(tr("Suppress this diagnostic"), this);
+    connect(m_suppressAction, &QAction::triggered, [this](bool) { suppressCurrentDiagnostic(); });
+}
+
+void ClangStaticAnalyzerDiagnosticView::suppressCurrentDiagnostic()
+{
+    const QModelIndexList indexes = selectedIndexes();
+    QTC_ASSERT(indexes.count() == 1, return);
+    const Diagnostic diag = static_cast<ClangStaticAnalyzerDiagnosticDelegate *>(itemDelegate())
+            ->getDiagnostic(indexes.first());
+    QTC_ASSERT(diag.isValid(), return);
+
+    // If the original project was closed, we work directly on the filter model, otherwise
+    // we go via the project settings.
+    auto * const filterModel = static_cast<ClangStaticAnalyzerDiagnosticFilterModel *>(model());
+    ProjectExplorer::Project * const project = filterModel->project();
+    if (project) {
+        Utils::FileName filePath = Utils::FileName::fromString(diag.location.filePath);
+        const Utils::FileName relativeFilePath
+                = filePath.relativeChildPath(project->projectDirectory());
+        if (!relativeFilePath.isEmpty())
+            filePath = relativeFilePath;
+        const SuppressedDiagnostic supDiag(filePath, diag.description, diag.issueContextKind,
+                                           diag.issueContext, diag.explainingSteps.count());
+        ProjectSettingsManager::getSettings(project)->addSuppressedDiagnostic(supDiag);
+    } else {
+        filterModel->addSuppressedDiagnostic(SuppressedDiagnostic(diag));
+    }
+}
+
+QList<QAction *> ClangStaticAnalyzerDiagnosticView::customActions() const
+{
+    return QList<QAction *>() << m_suppressAction;
 }
 
 } // namespace Internal
diff --git a/plugins/clangstaticanalyzer/clangstaticanalyzerdiagnosticview.h b/plugins/clangstaticanalyzer/clangstaticanalyzerdiagnosticview.h
index ed6acae4f3..4fbdc7f866 100644
--- a/plugins/clangstaticanalyzer/clangstaticanalyzerdiagnosticview.h
+++ b/plugins/clangstaticanalyzer/clangstaticanalyzerdiagnosticview.h
@@ -23,6 +23,7 @@
 
 namespace ClangStaticAnalyzer {
 namespace Internal {
+class Diagnostic;
 
 class ClangStaticAnalyzerDiagnosticView : public Analyzer::DetailedErrorView
 {
@@ -30,6 +31,13 @@ class ClangStaticAnalyzerDiagnosticView : public Analyzer::DetailedErrorView
 
 public:
     ClangStaticAnalyzerDiagnosticView(QWidget *parent = 0);
+
+private:
+    void suppressCurrentDiagnostic();
+
+    QList<QAction *> customActions() const;
+
+    QAction *m_suppressAction;
 };
 
 class ClangStaticAnalyzerDiagnosticDelegate : public Analyzer::DetailedErrorDelegate
@@ -38,6 +46,7 @@ public:
     ClangStaticAnalyzerDiagnosticDelegate(QListView *parent);
 
     SummaryLineInfo summaryInfo(const QModelIndex &index) const;
+    Diagnostic getDiagnostic(const QModelIndex &index) const;
 
 private:
     QWidget *createDetailsWidget(const QFont &font, const QModelIndex &index,
diff --git a/plugins/clangstaticanalyzer/clangstaticanalyzerplugin.cpp b/plugins/clangstaticanalyzer/clangstaticanalyzerplugin.cpp
index 52673def09..dced8b03d6 100644
--- a/plugins/clangstaticanalyzer/clangstaticanalyzerplugin.cpp
+++ b/plugins/clangstaticanalyzer/clangstaticanalyzerplugin.cpp
@@ -19,6 +19,7 @@
 #include "clangstaticanalyzerplugin.h"
 
 #include "clangstaticanalyzerconfigwidget.h"
+#include "clangstaticanalyzerprojectsettingswidget.h"
 #include "clangstaticanalyzerruncontrolfactory.h"
 #include "clangstaticanalyzertool.h"
 
@@ -35,6 +36,7 @@
 #include <coreplugin/coreconstants.h>
 #include <coreplugin/dialogs/ioptionspage.h>
 #include <licensechecker/licensecheckerplugin.h>
+#include <projectexplorer/projectpanelfactory.h>
 
 #include <extensionsystem/pluginmanager.h>
 
@@ -106,6 +108,12 @@ bool ClangStaticAnalyzerPlugin::initialize(const QStringList &arguments, QString
     // In the initialize method, a plugin can be sure that the plugins it
     // depends on have initialized their members.
 
+    auto panelFactory = new ProjectExplorer::ProjectPanelFactory();
+    panelFactory->setPriority(100);
+    panelFactory->setDisplayName(tr("Clang Static Analyzer Settings"));
+    panelFactory->setSimpleCreateWidgetFunction<ProjectSettingsWidget>(QIcon());
+    ProjectExplorer::ProjectPanelFactory::registerFactory(panelFactory);
+
     LicenseChecker::LicenseCheckerPlugin *licenseChecker
             = ExtensionSystem::PluginManager::getObject<LicenseChecker::LicenseCheckerPlugin>();
 
diff --git a/plugins/clangstaticanalyzer/clangstaticanalyzerprojectsettings.cpp b/plugins/clangstaticanalyzer/clangstaticanalyzerprojectsettings.cpp
new file mode 100644
index 0000000000..7ee14816be
--- /dev/null
+++ b/plugins/clangstaticanalyzer/clangstaticanalyzerprojectsettings.cpp
@@ -0,0 +1,137 @@
+/****************************************************************************
+**
+** Copyright (C) 2015 The Qt Company Ltd
+** All rights reserved.
+** For any questions to The Qt Company, please use contact form at http://www.qt.io/contact-us
+**
+** This file is part of the Qt Enterprise Qt Quick Profiler Add-on.
+**
+** Licensees holding valid Qt Enterprise licenses may use this file in
+** accordance with the Qt Enterprise License Agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company.
+**
+** If you have questions regarding the use of this file, please use
+** contact form at http://www.qt.io/contact-us
+**
+****************************************************************************/
+#include "clangstaticanalyzerprojectsettings.h"
+
+#include "clangstaticanalyzerdiagnostic.h"
+
+#include <utils/qtcassert.h>
+
+namespace ClangStaticAnalyzer {
+namespace Internal {
+
+static QString suppressedDiagnosticsKey()
+{
+    return QLatin1String("ClangStaticAnalyzer.SuppressedDiagnostics");
+}
+
+static QString suppressedDiagnosticFilePathKey()
+{
+    return QLatin1String("ClangStaticAnalyzer.SuppressedDiagnosticFilePath");
+}
+
+static QString suppressedDiagnosticMessageKey()
+{
+    return QLatin1String("ClangStaticAnalyzer.SuppressedDiagnosticMessage");
+}
+
+static QString suppressedDiagnosticContextKindKey()
+{
+    return QLatin1String("ClangStaticAnalyzer.SuppressedDiagnosticContextKind");
+}
+
+static QString suppressedDiagnosticContextKey()
+{
+    return QLatin1String("ClangStaticAnalyzer.SuppressedDiagnosticContext");
+}
+
+static QString suppressedDiagnosticUniquifierKey()
+{
+    return QLatin1String("ClangStaticAnalyzer.SuppressedDiagnosticUniquifier");
+}
+
+ProjectSettings::ProjectSettings(ProjectExplorer::Project *project) : m_project(project)
+{
+    load();
+    connect(project, &ProjectExplorer::Project::aboutToSaveSettings, this,
+            &ProjectSettings::store);
+}
+
+void ProjectSettings::addSuppressedDiagnostic(const SuppressedDiagnostic &diag)
+{
+    QTC_ASSERT(!m_suppressedDiagnostics.contains(diag), return);
+    m_suppressedDiagnostics << diag;
+    emit suppressedDiagnosticsChanged();
+}
+
+void ProjectSettings::removeSuppressedDiagnostic(const SuppressedDiagnostic &diag)
+{
+    const bool wasPresent = m_suppressedDiagnostics.removeOne(diag);
+    QTC_ASSERT(wasPresent, return);
+    emit suppressedDiagnosticsChanged();
+}
+
+void ProjectSettings::removeAllSuppressedDiagnostics()
+{
+    m_suppressedDiagnostics.clear();
+    emit suppressedDiagnosticsChanged();
+}
+
+void ProjectSettings::load()
+{
+    const QVariantList list = m_project->namedSettings(suppressedDiagnosticsKey()).toList();
+    foreach (const QVariant &v, list) {
+        const QVariantMap diag = v.toMap();
+        const QString fp = diag.value(suppressedDiagnosticFilePathKey()).toString();
+        if (fp.isEmpty())
+            continue;
+        const QString message = diag.value(suppressedDiagnosticMessageKey()).toString();
+        if (message.isEmpty())
+            continue;
+        Utils::FileName fullPath = Utils::FileName::fromString(fp);
+        if (fullPath.toFileInfo().isRelative()) {
+            fullPath = m_project->projectDirectory();
+            fullPath.appendPath(fp);
+        }
+        if (!fullPath.exists())
+            continue;
+        const QString contextKind = diag.value(suppressedDiagnosticContextKindKey()).toString();
+        const QString context = diag.value(suppressedDiagnosticContextKey()).toString();
+        const int uniquifier = diag.value(suppressedDiagnosticUniquifierKey()).toInt();
+        m_suppressedDiagnostics << SuppressedDiagnostic(Utils::FileName::fromString(fp), message,
+                                                        contextKind, context, uniquifier);
+    }
+    emit suppressedDiagnosticsChanged();
+}
+
+void ProjectSettings::store()
+{
+    QVariantList list;
+    foreach (const SuppressedDiagnostic &diag, m_suppressedDiagnostics) {
+        QVariantMap diagMap;
+        diagMap.insert(suppressedDiagnosticFilePathKey(), diag.filePath.toString());
+        diagMap.insert(suppressedDiagnosticMessageKey(), diag.description);
+        diagMap.insert(suppressedDiagnosticContextKindKey(), diag.contextKind);
+        diagMap.insert(suppressedDiagnosticContextKey(), diag.context);
+        diagMap.insert(suppressedDiagnosticUniquifierKey(), diag.uniquifier);
+        list << diagMap;
+    }
+    m_project->setNamedSettings(suppressedDiagnosticsKey(), list);
+}
+
+
+SuppressedDiagnostic::SuppressedDiagnostic(const Diagnostic &diag)
+    : filePath(Utils::FileName::fromString(diag.location.filePath))
+    , description(diag.description)
+    , contextKind(diag.issueContextKind)
+    , context(diag.issueContext)
+    , uniquifier(diag.explainingSteps.count())
+{
+}
+
+} // namespace Internal
+} // namespace ClangStaticAnalyzer
diff --git a/plugins/clangstaticanalyzer/clangstaticanalyzerprojectsettings.h b/plugins/clangstaticanalyzer/clangstaticanalyzerprojectsettings.h
new file mode 100644
index 0000000000..2a993de966
--- /dev/null
+++ b/plugins/clangstaticanalyzer/clangstaticanalyzerprojectsettings.h
@@ -0,0 +1,87 @@
+/****************************************************************************
+**
+** Copyright (C) 2015 The Qt Company Ltd
+** All rights reserved.
+** For any questions to The Qt Company, please use contact form at http://www.qt.io/contact-us
+**
+** This file is part of the Qt Enterprise Qt Quick Profiler Add-on.
+**
+** Licensees holding valid Qt Enterprise licenses may use this file in
+** accordance with the Qt Enterprise License Agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company.
+**
+** If you have questions regarding the use of this file, please use
+** contact form at http://www.qt.io/contact-us
+**
+****************************************************************************/
+#ifndef CLANGSTATICANALYZERPROJECTSETTINGS_H
+#define CLANGSTATICANALYZERPROJECTSETTINGS_H
+
+#include <projectexplorer/project.h>
+#include <utils/fileutils.h>
+
+#include <QList>
+#include <QObject>
+
+namespace ClangStaticAnalyzer {
+namespace Internal {
+class Diagnostic;
+
+class SuppressedDiagnostic
+{
+public:
+    SuppressedDiagnostic(const Utils::FileName &filePath, const QString &description,
+                         const QString &contextKind, const QString &context, int uniquifier)
+        : filePath(filePath)
+        , description(description)
+        , contextKind(contextKind)
+        , context(context)
+        , uniquifier(uniquifier)
+    {
+    }
+
+    SuppressedDiagnostic(const Diagnostic &diag);
+
+    Utils::FileName filePath; // Relative for files in project, absolute otherwise.
+    QString description;
+    QString contextKind;
+    QString context;
+    int uniquifier;
+};
+
+inline bool operator==(const SuppressedDiagnostic &d1, const SuppressedDiagnostic &d2)
+{
+    return d1.filePath == d2.filePath && d1.description == d2.description
+            && d1.contextKind == d2.contextKind && d1.context == d2.context
+            && d1.uniquifier == d2.uniquifier;
+}
+
+typedef QList<SuppressedDiagnostic> SuppressedDiagnosticsList;
+
+class ProjectSettings : public QObject
+{
+    Q_OBJECT
+public:
+    ProjectSettings(ProjectExplorer::Project *project);
+
+    SuppressedDiagnosticsList suppressedDiagnostics() const { return m_suppressedDiagnostics; }
+    void addSuppressedDiagnostic(const SuppressedDiagnostic &diag);
+    void removeSuppressedDiagnostic(const SuppressedDiagnostic &diag);
+    void removeAllSuppressedDiagnostics();
+
+signals:
+    void suppressedDiagnosticsChanged();
+
+private:
+    void load();
+    void store();
+
+    ProjectExplorer::Project * const m_project;
+    SuppressedDiagnosticsList m_suppressedDiagnostics;
+};
+
+} // namespace Internal
+} // namespace ClangStaticAnalyzer
+
+#endif // Include guard.
diff --git a/plugins/clangstaticanalyzer/clangstaticanalyzerprojectsettingsmanager.cpp b/plugins/clangstaticanalyzer/clangstaticanalyzerprojectsettingsmanager.cpp
new file mode 100644
index 0000000000..8b1637bba1
--- /dev/null
+++ b/plugins/clangstaticanalyzer/clangstaticanalyzerprojectsettingsmanager.cpp
@@ -0,0 +1,50 @@
+/****************************************************************************
+**
+** Copyright (C) 2015 The Qt Company Ltd
+** All rights reserved.
+** For any questions to The Qt Company, please use contact form at http://www.qt.io/contact-us
+**
+** This file is part of the Qt Enterprise Qt Quick Profiler Add-on.
+**
+** Licensees holding valid Qt Enterprise licenses may use this file in
+** accordance with the Qt Enterprise License Agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company.
+**
+** If you have questions regarding the use of this file, please use
+** contact form at http://www.qt.io/contact-us
+**
+****************************************************************************/
+#include "clangstaticanalyzerprojectsettingsmanager.h"
+
+#include "clangstaticanalyzerprojectsettings.h"
+
+#include <projectexplorer/session.h>
+
+namespace ClangStaticAnalyzer {
+namespace Internal {
+
+ProjectSettingsManager::ProjectSettingsManager()
+{
+    QObject::connect(ProjectExplorer::SessionManager::instance(),
+            &ProjectExplorer::SessionManager::aboutToRemoveProject,
+            &ProjectSettingsManager::handleProjectToBeRemoved);
+}
+
+ProjectSettings *ProjectSettingsManager::getSettings(ProjectExplorer::Project *project)
+{
+    auto &settings = m_settings[project];
+    if (!settings)
+        settings.reset(new ProjectSettings(project));
+    return settings.data();
+}
+
+void ProjectSettingsManager::handleProjectToBeRemoved(ProjectExplorer::Project *project)
+{
+    m_settings.remove(project);
+}
+
+ProjectSettingsManager::SettingsMap ProjectSettingsManager::m_settings;
+
+} // namespace Internal
+} // namespace ClangStaticAnalyzer
diff --git a/plugins/clangstaticanalyzer/clangstaticanalyzerprojectsettingsmanager.h b/plugins/clangstaticanalyzer/clangstaticanalyzerprojectsettingsmanager.h
new file mode 100644
index 0000000000..97f8d79a99
--- /dev/null
+++ b/plugins/clangstaticanalyzer/clangstaticanalyzerprojectsettingsmanager.h
@@ -0,0 +1,47 @@
+/****************************************************************************
+**
+** Copyright (C) 2015 The Qt Company Ltd
+** All rights reserved.
+** For any questions to The Qt Company, please use contact form at http://www.qt.io/contact-us
+**
+** This file is part of the Qt Enterprise Qt Quick Profiler Add-on.
+**
+** Licensees holding valid Qt Enterprise licenses may use this file in
+** accordance with the Qt Enterprise License Agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company.
+**
+** If you have questions regarding the use of this file, please use
+** contact form at http://www.qt.io/contact-us
+**
+****************************************************************************/
+#ifndef CLANGSTATICANALYZERPROJECTSETTINGSMANAGER_H
+#define CLANGSTATICANALYZERPROJECTSETTINGSMANAGER_H
+
+namespace ProjectExplorer { class Project; }
+
+#include <QHash>
+#include <QSharedPointer>
+
+namespace ClangStaticAnalyzer {
+namespace Internal {
+class ProjectSettings;
+
+class ProjectSettingsManager
+{
+public:
+    ProjectSettingsManager();
+
+    static ProjectSettings *getSettings(ProjectExplorer::Project *project);
+
+private:
+    static void handleProjectToBeRemoved(ProjectExplorer::Project *project);
+
+    typedef QHash<ProjectExplorer::Project *, QSharedPointer<ProjectSettings>> SettingsMap;
+    static SettingsMap m_settings;
+};
+
+} // namespace Internal
+} // namespace ClangStaticAnalyzer
+
+#endif // Include guard.
diff --git a/plugins/clangstaticanalyzer/clangstaticanalyzerprojectsettingswidget.cpp b/plugins/clangstaticanalyzer/clangstaticanalyzerprojectsettingswidget.cpp
new file mode 100644
index 0000000000..580e6f750d
--- /dev/null
+++ b/plugins/clangstaticanalyzer/clangstaticanalyzerprojectsettingswidget.cpp
@@ -0,0 +1,160 @@
+/****************************************************************************
+**
+** Copyright (C) 2015 The Qt Company Ltd
+** All rights reserved.
+** For any questions to The Qt Company, please use contact form at http://www.qt.io/contact-us
+**
+** This file is part of the Qt Enterprise Qt Quick Profiler Add-on.
+**
+** Licensees holding valid Qt Enterprise licenses may use this file in
+** accordance with the Qt Enterprise License Agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company.
+**
+** If you have questions regarding the use of this file, please use
+** contact form at http://www.qt.io/contact-us
+**
+****************************************************************************/
+#include "clangstaticanalyzerprojectsettingswidget.h"
+#include "ui_clangstaticanalyzerprojectsettingswidget.h"
+
+#include "clangstaticanalyzerprojectsettings.h"
+#include "clangstaticanalyzerprojectsettingsmanager.h"
+
+#include <utils/qtcassert.h>
+
+#include <QAbstractTableModel>
+
+namespace ClangStaticAnalyzer {
+namespace Internal {
+
+class SuppressedDiagnosticsModel : public QAbstractTableModel
+{
+    Q_OBJECT
+public:
+    SuppressedDiagnosticsModel(QObject *parent = 0) : QAbstractTableModel(parent) { }
+
+    void setDiagnostics(const SuppressedDiagnosticsList &diagnostics);
+    SuppressedDiagnostic diagnosticAt(int i) const;
+
+private:
+    enum Columns { ColumnFile, ColumnContext, ColumnDescription, ColumnLast = ColumnDescription };
+
+    int rowCount(const QModelIndex &parent = QModelIndex()) const;
+    int columnCount(const QModelIndex & = QModelIndex()) const { return ColumnLast + 1; }
+    QVariant headerData(int section, Qt::Orientation orientation, int role = Qt::DisplayRole) const;
+    QVariant data(const QModelIndex &index, int role = Qt::DisplayRole) const;
+
+    SuppressedDiagnosticsList m_diagnostics;
+};
+
+ProjectSettingsWidget::ProjectSettingsWidget(ProjectExplorer::Project *project, QWidget *parent) :
+    QWidget(parent),
+    m_ui(new Ui::ProjectSettingsWidget)
+  , m_projectSettings(ProjectSettingsManager::getSettings(project))
+{
+    m_ui->setupUi(this);
+    auto * const model = new SuppressedDiagnosticsModel(this);
+    model->setDiagnostics(m_projectSettings->suppressedDiagnostics());
+    connect(m_projectSettings, &ProjectSettings::suppressedDiagnosticsChanged,
+            [model, this] {
+                    model->setDiagnostics(m_projectSettings->suppressedDiagnostics());
+                    updateButtonStates();
+            });
+    m_ui->diagnosticsView->setModel(model);
+    updateButtonStates();
+    connect(m_ui->diagnosticsView->selectionModel(), &QItemSelectionModel::selectionChanged,
+            [this](const QItemSelection &, const QItemSelection &) {
+                updateButtonStateRemoveSelected();
+            });
+    connect(m_ui->removeSelectedButton, &QAbstractButton::clicked,
+            [this](bool) { removeSelected(); });
+    connect(m_ui->removeAllButton, &QAbstractButton::clicked,
+            [this](bool) { m_projectSettings->removeAllSuppressedDiagnostics();});
+}
+
+ProjectSettingsWidget::~ProjectSettingsWidget()
+{
+    delete m_ui;
+}
+
+void ProjectSettingsWidget::updateButtonStates()
+{
+    updateButtonStateRemoveSelected();
+    updateButtonStateRemoveAll();
+}
+
+void ProjectSettingsWidget::updateButtonStateRemoveSelected()
+{
+    const auto selectedRows = m_ui->diagnosticsView->selectionModel()->selectedRows();
+    QTC_ASSERT(selectedRows.count() <= 1, return);
+    m_ui->removeSelectedButton->setEnabled(!selectedRows.isEmpty());
+}
+
+void ProjectSettingsWidget::updateButtonStateRemoveAll()
+{
+    m_ui->removeAllButton->setEnabled(m_ui->diagnosticsView->model()->rowCount() > 0);
+}
+
+void ProjectSettingsWidget::removeSelected()
+{
+    const auto selectedRows = m_ui->diagnosticsView->selectionModel()->selectedRows();
+    QTC_ASSERT(selectedRows.count() == 1, return);
+    const auto * const model
+            = static_cast<SuppressedDiagnosticsModel *>(m_ui->diagnosticsView->model());
+    m_projectSettings->removeSuppressedDiagnostic(model->diagnosticAt(selectedRows.first().row()));
+}
+
+
+void SuppressedDiagnosticsModel::setDiagnostics(const SuppressedDiagnosticsList &diagnostics)
+{
+    beginResetModel();
+    m_diagnostics = diagnostics;
+    endResetModel();
+}
+
+SuppressedDiagnostic SuppressedDiagnosticsModel::diagnosticAt(int i) const
+{
+    return m_diagnostics.at(i);
+}
+
+int SuppressedDiagnosticsModel::rowCount(const QModelIndex &parent) const
+{
+    return parent.isValid() ? 0 : m_diagnostics.count();
+}
+
+QVariant SuppressedDiagnosticsModel::headerData(int section, Qt::Orientation orientation,
+                                                int role) const
+{
+    if (role == Qt::DisplayRole && orientation == Qt::Horizontal) {
+        if (section == ColumnFile)
+            return tr("File");
+        if (section == ColumnContext)
+            return tr("Context");
+        if (section == ColumnDescription)
+            return tr("Diagnostic");
+    }
+    return QVariant();
+}
+
+QVariant SuppressedDiagnosticsModel::data(const QModelIndex &index, int role) const
+{
+    if (!index.isValid() || role != Qt::DisplayRole || index.row() >= rowCount())
+        return QVariant();
+    const SuppressedDiagnostic &diag = m_diagnostics.at(index.row());
+    if (index.column() == ColumnFile)
+        return diag.filePath.toUserOutput();
+    if (index.column() == ColumnContext) {
+        if (diag.contextKind == QLatin1String("function") && !diag.context.isEmpty())
+            return tr("Function \"%1\"").arg(diag.context);
+        return QString();
+    }
+    if (index.column() == ColumnDescription)
+        return diag.description;
+    return QVariant();
+}
+
+} // namespace Internal
+} // namespace ClangStaticAnalyzer
+
+#include "clangstaticanalyzerprojectsettingswidget.moc"
diff --git a/plugins/clangstaticanalyzer/clangstaticanalyzerprojectsettingswidget.h b/plugins/clangstaticanalyzer/clangstaticanalyzerprojectsettingswidget.h
new file mode 100644
index 0000000000..6669919736
--- /dev/null
+++ b/plugins/clangstaticanalyzer/clangstaticanalyzerprojectsettingswidget.h
@@ -0,0 +1,52 @@
+/****************************************************************************
+**
+** Copyright (C) 2015 The Qt Company Ltd
+** All rights reserved.
+** For any questions to The Qt Company, please use contact form at http://www.qt.io/contact-us
+**
+** This file is part of the Qt Enterprise Qt Quick Profiler Add-on.
+**
+** Licensees holding valid Qt Enterprise licenses may use this file in
+** accordance with the Qt Enterprise License Agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company.
+**
+** If you have questions regarding the use of this file, please use
+** contact form at http://www.qt.io/contact-us
+**
+****************************************************************************/
+#ifndef CLANGSTATICANALYZERPROJECTSETTINGSWIDGET_H
+#define CLANGSTATICANALYZERPROJECTSETTINGSWIDGET_H
+
+#include <QWidget>
+
+namespace ProjectExplorer { class Project; }
+
+namespace ClangStaticAnalyzer {
+namespace Internal {
+class ProjectSettings;
+
+namespace Ui { class ProjectSettingsWidget; }
+
+class ProjectSettingsWidget : public QWidget
+{
+    Q_OBJECT
+
+public:
+    explicit ProjectSettingsWidget(ProjectExplorer::Project *project, QWidget *parent = 0);
+    ~ProjectSettingsWidget();
+
+private:
+    void updateButtonStates();
+    void updateButtonStateRemoveSelected();
+    void updateButtonStateRemoveAll();
+    void removeSelected();
+
+    Ui::ProjectSettingsWidget * const m_ui;
+    ProjectSettings * const m_projectSettings;
+};
+
+} // namespace Internal
+} // namespace ClangStaticAnalyzer
+
+#endif // Include guard.
diff --git a/plugins/clangstaticanalyzer/clangstaticanalyzerprojectsettingswidget.ui b/plugins/clangstaticanalyzer/clangstaticanalyzerprojectsettingswidget.ui
new file mode 100644
index 0000000000..c131bbe0c2
--- /dev/null
+++ b/plugins/clangstaticanalyzer/clangstaticanalyzerprojectsettingswidget.ui
@@ -0,0 +1,87 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>ClangStaticAnalyzer::Internal::ProjectSettingsWidget</class>
+ <widget class="QWidget" name="ClangStaticAnalyzer::Internal::ProjectSettingsWidget">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>400</width>
+    <height>300</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string>Form</string>
+  </property>
+  <layout class="QVBoxLayout" name="verticalLayout_2">
+   <item>
+    <layout class="QHBoxLayout" name="horizontalLayout">
+     <item>
+      <widget class="QLabel" name="label">
+       <property name="text">
+        <string>Suppressed Diagnostics:</string>
+       </property>
+      </widget>
+     </item>
+     <item>
+      <spacer name="horizontalSpacer">
+       <property name="orientation">
+        <enum>Qt::Horizontal</enum>
+       </property>
+       <property name="sizeHint" stdset="0">
+        <size>
+         <width>40</width>
+         <height>20</height>
+        </size>
+       </property>
+      </spacer>
+     </item>
+    </layout>
+   </item>
+   <item>
+    <layout class="QHBoxLayout" name="horizontalLayout_2">
+     <item>
+      <widget class="QTreeView" name="diagnosticsView">
+       <property name="selectionMode">
+        <enum>QAbstractItemView::SingleSelection</enum>
+       </property>
+      </widget>
+     </item>
+     <item>
+      <layout class="QVBoxLayout" name="verticalLayout">
+       <item>
+        <widget class="QPushButton" name="removeSelectedButton">
+         <property name="text">
+          <string>Remove Selected</string>
+         </property>
+        </widget>
+       </item>
+       <item>
+        <widget class="QPushButton" name="removeAllButton">
+         <property name="text">
+          <string>Remove All</string>
+         </property>
+        </widget>
+       </item>
+       <item>
+        <spacer name="verticalSpacer">
+         <property name="orientation">
+          <enum>Qt::Vertical</enum>
+         </property>
+         <property name="sizeHint" stdset="0">
+          <size>
+           <width>20</width>
+           <height>40</height>
+          </size>
+         </property>
+        </spacer>
+       </item>
+      </layout>
+     </item>
+    </layout>
+   </item>
+  </layout>
+ </widget>
+ <resources/>
+ <connections/>
+</ui>
diff --git a/plugins/clangstaticanalyzer/clangstaticanalyzertool.cpp b/plugins/clangstaticanalyzer/clangstaticanalyzertool.cpp
index 260aae865a..645186cc71 100644
--- a/plugins/clangstaticanalyzer/clangstaticanalyzertool.cpp
+++ b/plugins/clangstaticanalyzer/clangstaticanalyzertool.cpp
@@ -51,6 +51,7 @@ namespace Internal {
 ClangStaticAnalyzerTool::ClangStaticAnalyzerTool(QObject *parent)
     : QObject(parent)
     , m_diagnosticModel(0)
+    , m_diagnosticFilterModel(0)
     , m_diagnosticView(0)
     , m_goBack(0)
     , m_goNext(0)
@@ -74,10 +75,9 @@ QWidget *ClangStaticAnalyzerTool::createWidgets()
     m_diagnosticView->setFrameStyle(QFrame::NoFrame);
     m_diagnosticView->setAttribute(Qt::WA_MacShowFocusRect, false);
     m_diagnosticModel = new ClangStaticAnalyzerDiagnosticModel(m_diagnosticView);
-    // TODO: Make use of the proxy model
-    QSortFilterProxyModel *proxyModel = new QSortFilterProxyModel(m_diagnosticView);
-    proxyModel->setSourceModel(m_diagnosticModel);
-    m_diagnosticView->setModel(proxyModel);
+    m_diagnosticFilterModel = new ClangStaticAnalyzerDiagnosticFilterModel(m_diagnosticView);
+    m_diagnosticFilterModel->setSourceModel(m_diagnosticModel);
+    m_diagnosticView->setModel(m_diagnosticFilterModel);
     m_diagnosticView->setVerticalScrollMode(QAbstractItemView::ScrollPerPixel);
     m_diagnosticView->setAutoScroll(false);
     m_diagnosticView->setObjectName(QLatin1String("ClangStaticAnalyzerIssuesView"));
@@ -203,6 +203,7 @@ void ClangStaticAnalyzerTool::startTool()
     setBusyCursor(true);
     Project *project = SessionManager::startupProject();
     QTC_ASSERT(project, return);
+    m_diagnosticFilterModel->setProject(project);
     m_projectInfoBeforeBuild = CppTools::CppModelManager::instance()->projectInfo(project);
     QTC_ASSERT(m_projectInfoBeforeBuild.isValid(), return);
     m_running = true;
@@ -241,15 +242,18 @@ void ClangStaticAnalyzerTool::onEngineFinished()
     QTC_ASSERT(m_goBack, return);
     QTC_ASSERT(m_goNext, return);
     QTC_ASSERT(m_diagnosticModel, return);
+    QTC_ASSERT(m_diagnosticFilterModel, return);
 
     resetCursorAndProjectInfoBeforeBuild();
 
     const int issuesFound = m_diagnosticModel->rowCount();
-    m_goBack->setEnabled(issuesFound > 1);
-    m_goNext->setEnabled(issuesFound > 1);
+    const int issuesVisible = m_diagnosticFilterModel->rowCount();
+    m_goBack->setEnabled(issuesVisible > 1);
+    m_goNext->setEnabled(issuesVisible > 1);
 
     AnalyzerManager::showPermanentStatusMessage(issuesFound > 0
-      ? AnalyzerManager::tr("Clang Static Analyzer finished, %n issues were found.", 0, issuesFound)
+      ? AnalyzerManager::tr("Clang Static Analyzer finished, %n issues were found (%1 suppressed).",
+                            0, issuesFound).arg(issuesFound - issuesVisible)
       : AnalyzerManager::tr("Clang Static Analyzer finished, no issues were found."));
     m_running = false;
     emit finished();
diff --git a/plugins/clangstaticanalyzer/clangstaticanalyzertool.h b/plugins/clangstaticanalyzer/clangstaticanalyzertool.h
index fa402a608e..89c8851acc 100644
--- a/plugins/clangstaticanalyzer/clangstaticanalyzertool.h
+++ b/plugins/clangstaticanalyzer/clangstaticanalyzertool.h
@@ -27,6 +27,7 @@ namespace Analyzer { class DetailedErrorView; }
 namespace ClangStaticAnalyzer {
 namespace Internal {
 
+class ClangStaticAnalyzerDiagnosticFilterModel;
 class ClangStaticAnalyzerDiagnosticModel;
 class ClangStaticAnalyzerDiagnosticView;
 class Diagnostic;
@@ -65,6 +66,7 @@ private:
     CppTools::ProjectInfo m_projectInfoBeforeBuild;
 
     ClangStaticAnalyzerDiagnosticModel *m_diagnosticModel;
+    ClangStaticAnalyzerDiagnosticFilterModel *m_diagnosticFilterModel;
     Analyzer::DetailedErrorView *m_diagnosticView;
 
     QAction *m_goBack;