HackStudio: Store and restore the scrollbar values of ProjectFiles when they are closed and reopened from the list of open files.

Author: https://github.com/supex0fan 🔰
Commit: 85d65b06ab
Pull-request: https://github.com/SerenityOS/serenity/pull/3935

DevTools/HackStudio/ProjectFile.cpp

@@ -51,4 +51,24 @@ const GUI::TextDocument& ProjectFile::document() const
     return *m_document;
 }
 
+int ProjectFile::vertical_scroll_value() const
+{
+    return m_vertical_scroll_value;
+}
+
+void ProjectFile::vertical_scroll_value(int vertical_scroll_value)
+{
+    m_vertical_scroll_value = vertical_scroll_value;
+}
+
+int ProjectFile::horizontal_scroll_value() const
+{
+    return m_horizontal_scroll_value;
+}
+
+void ProjectFile::horizontal_scroll_value(int horizontal_scroll_value)
+{
+    m_horizontal_scroll_value = horizontal_scroll_value;
+}
+
 }