Class CAniIcon

cppcryptfs/ui/TrayIcon.h:237–308

//An Abstract Class that handles Animated Icons for the following two classes.

class CAniIcon {
// Construction
public:
  CAniIcon() : Icons(0), hIcon(0) {} //Needed for derived classes
  virtual ~CAniIcon() {if(Icons) delete Icons;}

// Attributes
private:
  CTime  StartTime;
  int    Duration; // Stop animating after Duration milliseconds
  UINT_PTR   TimerID;
  HICON* Icons;    // NULL Terminated Array of Icons to animate
  HICON* it;       // Frame Iterator
  HICON  hIcon;    // A copy of the original (non-animated) Icon.

// Operations
public:
  virtual HICON GetIcon() const      =0;
  virtual BOOL  SetIcon(HICON hIcon) =0;

  virtual UINT_PTR SetTimer(UINT nIDEvent, UINT nElapse, void (CALLBACK* lpfnTimer)(HWND, UINT, UINT_PTR, DWORD)) =0;
  virtual BOOL KillTimer(INT_PTR nIDEvent) =0;

  void SetIcons(const UINT IconIDs[]) { // NULL Terminated Array of Icon Recource IDs to animate
    const UINT* ptr=IconIDs;
	int i;
    for(i=1; *ptr++; ++i); //Count them
    if(Icons) delete Icons;
    it=Icons=new HICON[i];     //Prepare storage for their HICONs
    const CWinApp* App=AfxGetApp();
    ASSERT(App);
    for(ptr=IconIDs; i=*ptr++; *it++=App->LoadIcon(i)); //Store the HICONs
    *it=0; //NULL Terminate the list
  }

#define TrayIconTimer 1032

  BOOL Animate(UINT nDelayMilliSeconds, int nNumSeconds=-1) {
    if(!Icons) return FALSE;
    StopAnimating();
    it=Icons;
    StartTime=CTime::GetCurrentTime();
    Duration=nNumSeconds;
    hIcon=GetIcon();
    TimerID=SetTimer(TrayIconTimer, nDelayMilliSeconds, 0);
    return TimerID != 0;
  }

  void StopAnimating() {
    if(TimerID) KillTimer(TimerID);
    TimerID=0;
    if(hIcon) SetIcon(hIcon);
    hIcon=0;
  }

  virtual LRESULT WindowProc(UINT Message, WPARAM wParam, LPARAM lParam) {
    if(Message!=WM_TIMER || wParam!=TrayIconTimer) return false;
    CTime CurrentTime=CTime::GetCurrentTime();