rntviewer/src/app_state.h

enum Input_Key {
	KEY_UP,
	KEY_DOWN,
	KEY_LEFT,
	KEY_RIGHT,
	KEY_Q,
	KEY_ALT,
	KEY_TAB,

	KEY_COUNT
};

enum Mouse_Button {
	MOUSE_BTN_LEFT,
	MOUSE_BTN_RIGHT,

	MOUSE_BTN_COUNT
};

enum Mouse_Button_State : u16 {
	MOUSE_BTN_STATE_IS_DOWN = 0x1,
	MOUSE_BTN_STATE_JUST_PRESSED = 0x2,
	MOUSE_BTN_STATE_JUST_RELEASED = 0x4,
};

enum Key_State : u16 {
	KEY_STATE_IS_DOWN = 0x1,
	KEY_STATE_JUST_PRESSED = 0x2,
	KEY_STATE_JUST_RELEASED = 0x4,
};

struct User_Input {
	u16 key_state[KEY_COUNT];

	u16 mouse_btn_state[MOUSE_BTN_COUNT];
	struct { i32 x; i32 y; } mouse_pos;
};

struct Window_Data {
	// Real width and height of the window
	i32 width;
	i32 height;
	bool size_just_changed;

	f32 desired_aspect_ratio;
};

struct App_State {
  Window_Data win_data;
  User_Input user_input;

  FILE *inspected_file;
  u8   *inspected_fmem;
  u64   inspected_file_size;
	// @Platform: inotify file descriptor
	int inot;
};