implement tranparency of the whole window
premultiply alpha by graphic device
solve bugs of losting mouse device
solve bugs of memory leak and expanding menus
- resolve memory leak of config class
- resolve memory leak and level record when no child menu items exist
solve bugs of memory leaks
- resolve memory leak of config class
- resolve memory leak when no child menu items exist
implement basic rotation
massive code refactor
- move all stuff about menus into menu scene folder
- remove menu plane by rendering menus using 3d projection
massive code refactor
- put menus into a scene class from renderer
- delegate the rendering of menus to menu renderer
add project file
implement rotation button
add icons, change icon of rotate button
delegate right click to menu items, reset rotation
add move and shutdown button
show full text when hovering no list menus