TextEditor: Introduce shortcut for forcing a function hint proposal

... and support it in the ClangCodeModel.
This allows users to get function signature(s) displayed regardless of
where exactly the cursor is on the function call.

Fixes: QTCREATORBUG-19394
Change-Id: I033e8774db93680bfc3ee52610b817e0ef8ccc76
Reviewed-by: David Schulz <david.schulz@qt.io>

1 files changed, 6 insertions, 0 deletions

diff --git a/src/plugins/cppeditor/cppeditordocument.cpp b/src/plugins/cppeditor/cppeditordocument.cpp
index bae58d49cc..1de9413348 100644
--- a/src/plugins/cppeditor/cppeditordocument.cpp
+++ b/src/plugins/cppeditor/cppeditordocument.cpp
@@ -142,6 +142,11 @@ CppTools::CppCompletionAssistProvider *CppEditorDocument::completionAssistProvid
     return m_completionAssistProvider;
 }
 
+CppTools::CppCompletionAssistProvider *CppEditorDocument::functionHintAssistProvider() const
+{
+    return m_functionHintAssistProvider;
+}
+
 TextEditor::IAssistProvider *CppEditorDocument::quickFixAssistProvider() const
 {
     return CppEditorPlugin::instance()->quickFixProvider();
@@ -195,6 +200,7 @@ void CppEditorDocument::onMimeTypeChanged()
     m_isObjCEnabled = (mt == QLatin1String(CppTools::Constants::OBJECTIVE_C_SOURCE_MIMETYPE)
                        || mt == QLatin1String(CppTools::Constants::OBJECTIVE_CPP_SOURCE_MIMETYPE));
     m_completionAssistProvider = mm()->completionAssistProvider();
+    m_functionHintAssistProvider = mm()->functionHintAssistProvider();
 
     initializeTimer();
 }