libui/redo/windows/datetimepicker.c

100 lines
3.0 KiB
C

// 22 may 2015
#include "uipriv_windows.h"
// TODO does the control update builtin date and time formats with a locale change?
struct datetimepicker {
uiDateTimePicker d;
HWND hwnd;
};
uiDefineControlType(uiDateTimePicker, uiTypeDateTimePicker, struct datetimepicker)
static uintptr_t datetimepickerHandle(uiControl *c)
{
struct datetimepicker *d = (struct datetimepicker *) c;
return (uintptr_t) (d->hwnd);
}
// TODO
// TODO use DTM_GETIDEALSIZE when making Vista-only
// from http://msdn.microsoft.com/en-us/library/windows/desktop/dn742486.aspx#sizingandspacing
#define entryWidth 107 /* this is actually the shorter progress bar width, but Microsoft only indicates as wide as necessary */
#define entryHeight 14
static void datetimepickerPreferredSize(uiControl *c, uiSizing *d, intmax_t *width, intmax_t *height)
{
*width = uiWindowsDlgUnitsToX(entryWidth, d->Sys->BaseX);
*height = uiWindowsDlgUnitsToY(entryHeight, d->Sys->BaseY);
}
uiDateTimePicker *finishNewDateTimePicker(DWORD style, WCHAR *format)
{
struct datetimepicker *d;
d = (struct datetimepicker *) uiWindowsNewSingleHWNDControl(uiTypeDateTimePicker());
d->hwnd = uiWindowsUtilCreateControlHWND(0, // TODO client edge?
DATETIMEPICK_CLASSW, L"",
style | WS_TABSTOP,
hInstance, NULL,
TRUE);
if (format != NULL)
if (SendMessageW(d->hwnd, DTM_SETFORMAT, 0, (LPARAM) format) == 0)
logLastError("error applying format string to date/time picker in finishNewDateTimePicker()");
uiControl(d)->Handle = datetimepickerHandle;
uiControl(d)->PreferredSize = datetimepickerPreferredSize;
return uiDateTimePicker(d);
}
#define GLI(what, buf, n) GetLocaleInfoEx(LOCALE_NAME_USER_DEFAULT, what, buf, n)
// Windows has no combined date/time prebuilt constant; we have to build the format string ourselves
uiDateTimePicker *uiNewDateTimePicker(void)
{
WCHAR *date, *time, *datetime;
int ndate, ntime;
int n;
uiDateTimePicker *dtp;
// TODO verify that this always returns a century year
ndate = GLI(LOCALE_SSHORTDATE, NULL, 0);
if (ndate == 0)
logLastError("error getting date string length in uiNewDateTimePicker()");
date = (WCHAR *) uiAlloc(ndate * sizeof (WCHAR), "WCHAR[]");
if (GLI(LOCALE_SSHORTDATE, date, ndate) == 0)
logLastError("error geting date string in uiNewDateTimePicker()");
ntime = GLI(LOCALE_STIMEFORMAT, NULL, 0);
if (ndate == 0)
logLastError("error getting time string length in uiNewDateTimePicker()");
time = (WCHAR *) uiAlloc(ntime * sizeof (WCHAR), "WCHAR[]");
if (GLI(LOCALE_STIMEFORMAT, time, ntime) == 0)
logLastError("error geting time string in uiNewDateTimePicker()");
n = _scwprintf(L"%s %s", date, time);
datetime = (WCHAR *) uiAlloc((n + 1) * sizeof (WCHAR), "WCHAR[]");
snwprintf(datetime, n + 1, L"%s %s", date, time);
dtp = finishNewDateTimePicker(0, datetime);
uiFree(datetime);
uiFree(time);
uiFree(date);
return dtp;
}
uiDateTimePicker *uiNewDatePicker(void)
{
return finishNewDateTimePicker(DTS_SHORTDATECENTURYFORMAT, NULL);
}
uiDateTimePicker *uiNewTimePicker(void)
{
return finishNewDateTimePicker(DTS_TIMEFORMAT, NULL);
}