Core: Add method ProjectFile::containsFile

src/App/ProjectFile.cpp

@@ -461,6 +461,13 @@ void ProjectFile::findFiles(XERCES_CPP_NAMESPACE_QUALIFIER DOMNode* node,
     }
 }
 
+bool ProjectFile::containsFile(const std::string& name) const
+{
+    zipios::ZipFile project(stdFile);
+    auto entry = project.getEntry(name);
+    return entry != nullptr;
+}
+
 std::list<std::string> ProjectFile::getInputFiles(const std::string& name) const
 {
     // <ObjectData Count="1">

src/App/ProjectFile.h

@@ -148,6 +148,11 @@ public:
      * @see getInputFiles().
      */
     std::list<PropertyFile> getPropertyFiles(const std::string& name) const;
+    /**
+     * If the project file contains the file \a name true is returned and
+     * false otherwise
+     */
+    bool containsFile(const std::string& name) const;
     /**
      * Retrieves a list of input file names referenced to the given object name.
      * This method does the same as @ref getPropertyFiles() unless that it only