Implemented tooltip and lookat for #include directives.

src/plugins/cppeditor/cppeditor.cpp

@@ -480,13 +480,23 @@ void CPPEditor::jumpToDefinition()
     Document::Ptr doc = m_modelManager->document(file()->fileName());
     if (!doc)
         return;
+
+    QTextCursor tc = textCursor();
+    unsigned lineno = tc.blockNumber() + 1;
+    foreach (const Document::Include &incl, doc->includes()) {
+        if (incl.line() == lineno) {
+            if (TextEditor::BaseTextEditor::openEditorAt(incl.fileName(), 0, 0))
+                return; // done
+            break;
+        }
+    }
+
     Symbol *lastSymbol = doc->findSymbolAt(line, column);
     if (!lastSymbol)
         return;
 
     // Get the expression under the cursor
     const int endOfName = endOfNameUnderCursor();
-    QTextCursor tc = textCursor();
     tc.setPosition(endOfName);
     ExpressionUnderCursor expressionUnderCursor;
     const QString expression = expressionUnderCursor(tc);

src/plugins/cpptools/cpphoverhandler.cpp

@@ -177,6 +177,16 @@ void CppHoverHandler::updateHelpIdAndTooltip(TextEditor::ITextEditor *editor, in
         }
     }
 
+    if (m_toolTip.isEmpty()) {
+        unsigned lineno = tc.blockNumber() + 1;
+        foreach (const Document::Include &incl, doc->includes()) {
+            if (lineno == incl.line()) {
+                m_toolTip = incl.fileName();
+                break;
+            }
+        }
+    }
+
     if (m_toolTip.isEmpty()) {
         // Move to the end of a qualified name
         bool stop = false;

src/plugins/cpptools/cppmodelmanager.cpp

@@ -138,7 +138,8 @@ protected:
     virtual void stopExpandingMacro(unsigned offset, const Macro &macro);
     virtual void startSkippingBlocks(unsigned offset);
     virtual void stopSkippingBlocks(unsigned offset);
-    virtual void sourceNeeded(QString &fileName, IncludeType type);
+    virtual void sourceNeeded(QString &fileName, IncludeType type,
+                              unsigned line);
 
 private:
     QPointer<CppModelManager> m_modelManager;
@@ -176,7 +177,7 @@ void CppPreprocessor::setProjectFiles(const QStringList &files)
 { m_projectFiles = files; }
 
 void CppPreprocessor::run(QString &fileName)
-{ sourceNeeded(fileName, IncludeGlobal); }
+{ sourceNeeded(fileName, IncludeGlobal, /*line = */ 0); }
 
 void CppPreprocessor::operator()(QString &fileName)
 { run(fileName); }
@@ -361,7 +362,8 @@ void CppPreprocessor::stopSkippingBlocks(unsigned offset)
         m_currentDoc->stopSkippingBlocks(offset);
 }
 
-void CppPreprocessor::sourceNeeded(QString &fileName, IncludeType type)
+void CppPreprocessor::sourceNeeded(QString &fileName, IncludeType type,
+                                   unsigned line)
 {
     if (fileName.isEmpty())
         return;
@@ -369,7 +371,7 @@ void CppPreprocessor::sourceNeeded(QString &fileName, IncludeType type)
     QByteArray contents = tryIncludeFile(fileName, type);
 
     if (m_currentDoc) {
-        m_currentDoc->addIncludeFile(fileName);
+        m_currentDoc->addIncludeFile(fileName, line);
         if (contents.isEmpty() && ! QFileInfo(fileName).isAbsolute()) {
             QString msg;
             msg += fileName;