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

@@ -31,12 +31,17 @@ protected:
 
     bool isFileValid(const QString &path) const noexcept
     {
-        Document *super = reinterpret_cast<Document *>(this);
-        return super->isFileValidImpl(path);
+        QFileInfo file(path);
+        return Document::suffixList.contains(file.suffix());
     }
 
 public:
-    static Document *fromFile(const QString &path) noexcept;
+    static Document *fromFile(const QString &path) noexcept
+    {
+        Document *ret = new Document();
+        ret->initFromPath(path);
+        return ret;
+    }
 
     inline Type getType() const noexcept
     {
@@ -51,26 +56,30 @@ public:
 
 /* Audio document */
 class AudioDocument final : public CRTPDocument<AudioDocumentType, AudioDocument> {
-private:
-    explicit AudioDocument() = default;
+public:
+    const QStringList &suffixList = Vivy::Utils::audioFileSuffix;
 
-    inline bool isFileValidImpl(const QString &path) const noexcept
+    inline void initFromPath(const QString &path) noexcept
     {
-        QFileInfo file(path);
-        return Vivy::Utils::audioFileSuffix.contains(file.suffix());
     }
+
+private:
+    explicit AudioDocument() = default;
+    friend CRTPDocument<AudioDocumentType, AudioDocument>;
 };
 
 /* Video document */
 class VideoDocument final : public CRTPDocument<VideoDocumentType, VideoDocument> {
-private:
-    explicit VideoDocument() = default;
+public:
+    const QStringList &suffixList = Vivy::Utils::videoFileSuffix;
 
-    inline bool isFileValidImpl(const QString &path) const noexcept
+    inline void initFromPath(const QString &path) noexcept
     {
-        QFileInfo file(path);
-        return Vivy::Utils::videoFileSuffix.contains(file.suffix());
     }
+
+private:
+    explicit VideoDocument() noexcept = default;
+    friend CRTPDocument<VideoDocumentType, VideoDocument>;
 };
 
 #endif // VIVY_CRTP_DOCUMENT_H