ClangTools: Add clear button to toolbar

Change-Id: I0caeb3fa118b57084f7df7a22952f3057ca601e0
Reviewed-by: Ivan Donchevskii <ivan.donchevskii@qt.io>

src/plugins/clangtools/clangtidyclazytool.cpp

@@ -245,6 +245,18 @@ ClangTidyClazyTool::ClangTidyClazyTool()
     connect(action, &QAction::triggered, m_diagnosticView, &DetailedErrorView::goNext);
     m_goNext = action;
 
+    // Clear data
+    action = new QAction(this);
+    action->setDisabled(true);
+    action->setIcon(Utils::Icons::CLEAN_TOOLBAR.icon());
+    action->setToolTip(tr("Clear"));
+    connect(action, &QAction::triggered, [this](){
+        m_clear->setEnabled(false);
+        m_diagnosticModel->clear();
+        Debugger::showPermanentStatusMessage(QString());
+    });
+    m_clear = action;
+
     // Filter line edit
     m_filterLineEdit = new Utils::FancyLineEdit();
     m_filterLineEdit->setFiltering(true);
@@ -291,6 +303,7 @@ ClangTidyClazyTool::ClangTidyClazyTool()
 
     m_perspective.addToolBarAction(m_startAction);
     m_perspective.addToolBarAction(m_stopAction);
+    m_perspective.addToolBarAction(m_clear);
     m_perspective.addToolBarAction(m_goBack);
     m_perspective.addToolBarAction(m_goNext);
     m_perspective.addToolBarWidget(m_filterLineEdit);
@@ -362,7 +375,6 @@ void ClangTidyClazyTool::startTool(bool askUserForFileSelection)
 
     m_perspective.select();
 
-    m_diagnosticModel->clearAndSetupCache();
     m_diagnosticModel->clear();
 
     setToolBusy(true);
@@ -381,6 +393,7 @@ void ClangTidyClazyTool::updateRunActions()
         QString tooltipText = tr("Clang-Tidy and Clazy are still running.");
         m_startAction->setToolTip(tooltipText);
         m_stopAction->setEnabled(true);
+        m_clear->setEnabled(false);
     } else {
         QString toolTip = tr("Start Clang-Tidy and Clazy.");
         Project *project = SessionManager::startupProject();
@@ -394,6 +407,7 @@ void ClangTidyClazyTool::updateRunActions()
         m_startAction->setToolTip(toolTip);
         m_startAction->setEnabled(canRun);
         m_stopAction->setEnabled(false);
+        m_clear->setEnabled(m_diagnosticModel->diagnosticsCount());
     }
 }
 

src/plugins/clangtools/clangtidyclazytool.h

@@ -69,6 +69,7 @@ private:
 
     QAction *m_goBack = nullptr;
     QAction *m_goNext = nullptr;
+    QAction *m_clear = nullptr;
 
     Utils::Perspective m_perspective{ClangTidyClazyPerspectiveId, tr("Clang-Tidy and Clazy")};
 };

src/plugins/clangtools/clangtoolsdiagnosticmodel.cpp

@@ -90,6 +90,12 @@ int ClangToolsDiagnosticModel::diagnosticsCount() const
     return rootItem()->childCount();
 }
 
+void ClangToolsDiagnosticModel::clear()
+{
+    clearAndSetupCache();
+    Utils::TreeModel<>::clear();
+}
+
 void ClangToolsDiagnosticModel::updateItems(const DiagnosticItem *changedItem)
 {
     for (auto item : stepsToItemsCache[changedItem->diagnostic().explainingSteps]) {

src/plugins/clangtools/clangtoolsdiagnosticmodel.h

@@ -107,7 +107,7 @@ public:
         DiagnosticRole = Debugger::DetailedErrorView::FullTextRole + 1
     };
 
-    void clearAndSetupCache();
+    void clear();
     void removeWatchedPath(const QString &path);
     void addWatchedPath(const QString &path);
 
@@ -118,6 +118,7 @@ private:
     void connectFileWatcher();
     void updateItems(const DiagnosticItem *changedItem);
     void onFileChanged(const QString &path);
+    void clearAndSetupCache();
 
 private:
     std::map<QVector<ExplainingStep>, QVector<DiagnosticItem *>> stepsToItemsCache;