Add a theme class to store all the custom UI values used in the code.

It will need a setting for selecting the theme in the factory method.

YACReaderLibrary/YACReaderLibrary.pro

@@ -145,7 +145,8 @@ HEADERS += comic_flow.h \
   yacreader_comics_selection_helper.h \
   yacreader_comic_info_helper.h \
   db/reading_list.h \
-  current_comic_view_helper.h
+  current_comic_view_helper.h \
+    theme.h
 
 !CONFIG(no_opengl) {
         HEADERS += ../common/gl/yacreader_flow_gl.h
@@ -217,7 +218,8 @@ SOURCES += comic_flow.cpp \
     yacreader_comics_selection_helper.cpp \
     yacreader_comic_info_helper.cpp\
     db/reading_list.cpp \
-    current_comic_view_helper.cpp
+    current_comic_view_helper.cpp \
+    theme.cpp
 
 !CONFIG(no_opengl) {
     SOURCES += ../common/gl/yacreader_flow_gl.cpp

YACReaderLibrary/theme.cpp

@@ -0,0 +1,6 @@
+#include "theme.h"
+
+Theme::Theme()
+{
+
+}

YACReaderLibrary/theme.h

@@ -0,0 +1,38 @@
+#ifndef THEME_H
+#define THEME_H
+
+#include <QtCore>
+
+class Theme
+{
+public:
+    Theme();
+
+    static Theme currentTheme() {
+        Theme t;
+
+        if (true) { //native macos theme
+            t.isMacosNative = true;
+
+            t.disableClassicViewCollapsing = true;
+
+            t.comicsViewTransitionBackground = "#FFFFFF";
+        } else {
+            t.isMacosNative = false;
+
+            t.disableClassicViewCollapsing = false;
+
+            t.comicsViewTransitionBackground = "#2A2A2A";
+        }
+    }
+
+    bool isMacosNative;
+
+    //
+    bool disableClassicViewCollapsing;
+
+    //
+    QString comicsViewTransitionBackground;
+};
+
+#endif // THEME_H