Add documents

Add documents, document views and a document store to manage document and which one is displayed.

• The MainWindow make calls to the VivyDocumentStore to create the documents and the views
• The VivyDocumentStore create the documents
• The VivyDocumentView is only here to have a view, it won't hold any data
• The VivyDocument can be manipulated in any part of the code
• Widgets view the VivyDocument through the VivyDocumentView
• Add the VivyApplication that will hold the window and the non-graphic data
• The main window can get the currently selected main document

src/Document/CRTPDocument.h

@@ -19,6 +19,10 @@ enum VideoDocumentType {
     MP4 = Vivy::Utils::DocumentType::MP4,
 };
 
+enum ASSDocumentType {
+    ASS = Vivy::Utils::DocumentType::ASS,
+};
+
 template <class CRTPDocumentType, class Document> class CRTPDocument {
 public:
     using Type = CRTPDocumentType;
@@ -80,4 +84,16 @@ private:
     friend CRTPDocument<VideoDocumentType, VideoDocument>;
 };
 
+/* ASS document */
+class ASSDocument final : public CRTPDocument<ASSDocumentType, ASSDocument> {
+    const QStringList &suffixList = Vivy::Utils::assFileSuffix;
+
+    inline void initFromPath(const QString &path) noexcept
+    {
+    }
+
+    explicit ASSDocument() noexcept = default;
+    friend CRTPDocument<ASSDocumentType, ASSDocument>;
+};
+
 #endif // VIVY_CRTP_DOCUMENT_H