reactos/rosapps/dflat32/calendar.c

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/* ------------- calendar.c ------------- */
#include "dflat.h"
#define CALHEIGHT 17
#define CALWIDTH 33
static int DyMo[] = {31,28,31,30,31,30,31,31,30,31,30,31};
static struct tm ttm;
static int dys[42];
static DFWINDOW Cwnd;
static void FixDate(void)
{
/* ---- adjust Feb for leap year ---- */
if (ttm.tm_year % 4 == 0)
{
if (ttm.tm_year % 100 == 0)
{
if (ttm.tm_year % 400 == 0)
{
DyMo[1] = 29;
}
else
{
DyMo[1] = 28;
}
}
else
{
DyMo[1] = 29;
}
}
else
{
DyMo[1] = 28;
}
ttm.tm_mday = min(ttm.tm_mday, DyMo[ttm.tm_mon]);
}
/* ---- build calendar dates array ---- */
static void BuildDateArray(void)
{
int offset, dy = 0;
memset(dys, 0, sizeof dys);
FixDate();
/* ----- compute the weekday for the 1st ----- */
offset = ((ttm.tm_mday-1) - ttm.tm_wday) % 7;
if (offset < 0)
offset += 7;
if (offset)
offset = (offset - 7) * -1;
/* ----- build the dates into the array ---- */
for (dy = 1; dy <= DyMo[ttm.tm_mon]; dy++)
dys[offset++] = dy;
}
static void CreateWindowMsg(DFWINDOW wnd)
{
int x, y;
DfDrawBox(wnd, 1, 2, CALHEIGHT-4, CALWIDTH-4);
for (x = 5; x < CALWIDTH-4; x += 4)
DfDrawVector(wnd, x, 2, CALHEIGHT-4, FALSE);
for (y = 4; y < CALHEIGHT-3; y+=2)
DfDrawVector(wnd, 1, y, CALWIDTH-4, TRUE);
}
static void DisplayDates(DFWINDOW wnd)
{
int week, day;
char dyln[10];
int offset;
char banner[CALWIDTH-1];
char banner1[30];
DfSetStandardColor(wnd);
DfPutWindowLine(wnd, "Sun Mon Tue Wed Thu Fri Sat", 2, 1);
memset(banner, ' ', CALWIDTH-2);
strftime(banner1, 16, "%B, %Y", &ttm);
offset = (CALWIDTH-2 - strlen(banner1)) / 2;
strcpy(banner+offset, banner1);
strcat(banner, " ");
DfPutWindowLine(wnd, banner, 0, 0);
BuildDateArray();
for (week = 0; week < 6; week++) {
for (day = 0; day < 7; day++) {
int dy = dys[week*7+day];
if (dy == 0)
strcpy(dyln, " ");
else {
if (dy == ttm.tm_mday)
sprintf(dyln, "%c%c%c%2d %c",
DF_CHANGECOLOR,
DfSelectForeground(wnd)+0x80,
DfSelectBackground(wnd)+0x80,
dy, DF_RESETCOLOR);
else
sprintf(dyln, "%2d ", dy);
}
DfSetStandardColor(wnd);
DfPutWindowLine(wnd, dyln, 2 + day * 4, 3 + week*2);
}
}
}
static int KeyboardMsg(DFWINDOW wnd, DF_PARAM p1)
{
switch ((int)p1) {
case DF_PGUP:
if (ttm.tm_mon == 0) {
ttm.tm_mon = 12;
ttm.tm_year--;
}
ttm.tm_mon--;
FixDate();
mktime(&ttm);
DisplayDates(wnd);
return TRUE;
case DF_PGDN:
ttm.tm_mon++;
if (ttm.tm_mon == 12) {
ttm.tm_mon = 0;
ttm.tm_year++;
}
FixDate();
mktime(&ttm);
DisplayDates(wnd);
return TRUE;
default:
break;
}
return FALSE;
}
static int CalendarProc(DFWINDOW wnd,DFMESSAGE msg,
DF_PARAM p1,DF_PARAM p2)
{
switch (msg) {
case DFM_CREATE_WINDOW:
DfDefaultWndProc(wnd, msg, p1, p2);
CreateWindowMsg(wnd);
return TRUE;
case DFM_KEYBOARD:
if (KeyboardMsg(wnd, p1))
return TRUE;
break;
case DFM_PAINT:
DfDefaultWndProc(wnd, msg, p1, p2);
DisplayDates(wnd);
return TRUE;
case DFM_COMMAND:
if ((int)p1 == DF_ID_HELP) {
DfDisplayHelp(wnd, "Calendar");
return TRUE;
}
break;
case DFM_CLOSE_WINDOW:
Cwnd = NULL;
break;
default:
break;
}
return DfDefaultWndProc(wnd, msg, p1, p2);
}
void Calendar(DFWINDOW pwnd)
{
if (Cwnd == NULL) {
time_t tim = time(NULL);
ttm = *localtime(&tim);
Cwnd = DfDfCreateWindow(DF_PICTUREBOX,
"Calendar",
-1, -1, CALHEIGHT, CALWIDTH,
NULL, pwnd, CalendarProc,
DF_SHADOW |
DF_MINMAXBOX |
DF_CONTROLBOX |
DF_MOVEABLE |
DF_HASBORDER
);
}
DfSendMessage(Cwnd, DFM_SETFOCUS, TRUE, 0);
}
/* EOF */