Introjucer: warning if trying to save read-only file.

extras/Introjucer/Source/Project/jucer_ProjectContentComponent.cpp

@@ -422,7 +422,13 @@ void ProjectContentComponent::closeDocument()
 void ProjectContentComponent::saveDocument()
 {
     if (currentDocument != nullptr)
-        currentDocument->save();
+    {
+        if (! currentDocument->save())
+            AlertWindow::showMessageBox (AlertWindow::WarningIcon,
+                                         TRANS("Save failed!"),
+                                         TRANS("Couldn't save the file:")
+                                           + "\n" + currentDocument->getFile().getFullPathName());
+    }
     else
         saveProject();
 

extras/Introjucer/Source/Utility/jucer_PresetIDs.h

@@ -67,6 +67,7 @@ namespace Ids
     DECLARE_ID (optimisation);
     DECLARE_ID (defines);
     DECLARE_ID (headerPath);
+    DECLARE_ID (systemHeaderPath);
     DECLARE_ID (libraryPath);
     DECLARE_ID (customXcodeFlags);
     DECLARE_ID (cppLibType);