//======================================================================
// Header file
//
// Written for the book Programming Windows CE
// Copyright (C) 1998 Douglas Boling
//
//======================================================================
// Returns number of elements
#define dim(x) (sizeof(x) / sizeof(x[0]))   

//----------------------------------------------------------------------
// Generic defines and data types
//
struct decodeUINT {                             // Structure associates
    UINT Code;                                  // messages 
                                                // with a function.
    LRESULT (*Fxn)(HWND, UINT, WPARAM, LPARAM);
}; 
struct decodeCMD {                              // Structure associates
    UINT Code;                                  // menu IDs with a 
    LRESULT (*Fxn)(HWND, WORD, HWND, WORD);     // function.
};

//----------------------------------------------------------------------
// Generic defines used by application
#define  ID_ICON             1                  // App icon resource ID
#define  IDC_CMDBAR          2                  // Command band ID
#define  ID_MENU             3                  // Main menu resource ID
#define  ID_LISTV            5                  // List view control ID

// Menu item IDs
#define  IDM_DELDB           101                // File menu
#define  IDM_EXIT            102

#define  IDM_NEW             110                // Album menu
#define  IDM_EDIT            111
#define  IDM_DELETE          112

#define  IDM_SORTNAME        120                // Sort IDs must be 
#define  IDM_SORTARTIST      121                // consecutive.
#define  IDM_SORTCATEGORY    122

#define  IDM_ABOUT           150                // Help menu

// IDs for dialog box controls
#define  IDD_NAME            100                // Edit album dialog.
#define  IDD_ARTIST          101
#define  IDD_NUMTRACKS       102
#define  IDD_CATEGORY        103
#define  IDD_TRACKS          104
#define  IDD_NEWTRACK        105
#define  IDD_EDITTRACK       106
#define  IDD_DELTRACK        107

#define  IDD_TRACK           200                // Edit track dialog.
#define  IDD_TIME            201

//----------------------------------------------------------------------
// Program-specific structures
//

// Structure used by New/Edit Album dlg proc
#define MAX_NAMELEN          64
#define MAX_ARTISTLEN        64
#define MAX_TRACKNAMELEN     512
typedef struct {
    TCHAR szName[MAX_NAMELEN];
    TCHAR szArtist[MAX_ARTISTLEN];
    INT nDateRel;
    SHORT sCategory;
    SHORT sNumTracks;
    INT nTrackDataLen;
    TCHAR szTracks[MAX_TRACKNAMELEN];
} ALBUMINFO, *LPALBUMINFO;

// Structure used by Add/Edit album track
typedef struct {
    TCHAR szTrack[64];
    TCHAR szTime[16];
} TRACKINFO, *LPTRACKINFO;

// Structure used by GetItemData
typedef struct {
    int nItem;
    ALBUMINFO Album;
} LVCACHEDATA, *PLVCACHEDATA;

// Database property identifiers
#define PID_NAME       MAKELONG (CEVT_LPWSTR, 1)
#define PID_ARTIST     MAKELONG (CEVT_LPWSTR, 2)
#define PID_RELDATE    MAKELONG (CEVT_I2, 3)
#define PID_CATEGORY   MAKELONG (CEVT_I2, 4)
#define PID_NUMTRACKS  MAKELONG (CEVT_I2, 5)
#define PID_TRACKS     MAKELONG (CEVT_BLOB, 6)
#define NUM_DB_PROPS   6

//----------------------------------------------------------------------
// Function prototypes
//
int InitApp (HINSTANCE);
HWND InitInstance (HINSTANCE, LPWSTR, int);
int TermInstance (HINSTANCE, int);

HANDLE OpenCreateDB (HWND, int *);
void ReopenDatabase (HWND, INT);
int GetItemData (int, PLVCACHEDATA); 
HWND CreateLV (HWND, RECT *);
void ClearCache (void);

// Window procedures
LRESULT CALLBACK MainWndProc (HWND, UINT, WPARAM, LPARAM);

// Message handlers
LRESULT DoCreateMain (HWND, UINT, WPARAM, LPARAM);
LRESULT DoSizeMain (HWND, UINT, WPARAM, LPARAM);
LRESULT DoCommandMain (HWND, UINT, WPARAM, LPARAM);
LRESULT DoNotifyMain (HWND, UINT, WPARAM, LPARAM);
LRESULT DoDbNotifyMain (HWND, UINT, WPARAM, LPARAM);
LRESULT DoDestroyMain (HWND, UINT, WPARAM, LPARAM);

// Command functions
LPARAM DoMainCommandDelDB (HWND, WORD, HWND, WORD);
LPARAM DoMainCommandExit (HWND, WORD, HWND, WORD);
LPARAM DoMainCommandNew (HWND, WORD, HWND, WORD);
LPARAM DoMainCommandEdit (HWND, WORD, HWND, WORD);
LPARAM DoMainCommandDelete (HWND, WORD, HWND, WORD);
LPARAM DoMainCommandSort (HWND, WORD, HWND, WORD);
LPARAM DoMainCommandAbout (HWND, WORD, HWND, WORD);

// Dialog procedures
BOOL CALLBACK AboutDlgProc (HWND, UINT, WPARAM, LPARAM);
BOOL CALLBACK EditAlbumDlgProc (HWND, UINT, WPARAM, LPARAM);