| 1 | ///////////////////////////////////////////////////////////////////////////// |
| 2 | // Name: src/msw/datectrl.cpp |
| 3 | // Purpose: wxDatePickerCtrl implementation |
| 4 | // Author: Vadim Zeitlin |
| 5 | // Modified by: |
| 6 | // Created: 2005-01-09 |
| 7 | // RCS-ID: $Id$ |
| 8 | // Copyright: (c) 2005 Vadim Zeitlin <vadim@wxwindows.org> |
| 9 | // Licence: wxWindows licence |
| 10 | ///////////////////////////////////////////////////////////////////////////// |
| 11 | |
| 12 | // ============================================================================ |
| 13 | // declarations |
| 14 | // ============================================================================ |
| 15 | |
| 16 | // ---------------------------------------------------------------------------- |
| 17 | // headers |
| 18 | // ---------------------------------------------------------------------------- |
| 19 | |
| 20 | #include "wx/wxprec.h" |
| 21 | |
| 22 | #ifdef __BORLANDC__ |
| 23 | #pragma hdrstop |
| 24 | #endif |
| 25 | |
| 26 | #if wxUSE_DATEPICKCTRL |
| 27 | |
| 28 | #ifndef WX_PRECOMP |
| 29 | #include "wx/msw/wrapwin.h" |
| 30 | #include "wx/msw/wrapcctl.h" // include <commctrl.h> "properly" |
| 31 | #include "wx/app.h" |
| 32 | #include "wx/intl.h" |
| 33 | #include "wx/dcclient.h" |
| 34 | #include "wx/msw/private.h" |
| 35 | #endif |
| 36 | |
| 37 | #include "wx/datectrl.h" |
| 38 | #include "wx/dynlib.h" |
| 39 | |
| 40 | #define _WX_DEFINE_DATE_EVENTS_ |
| 41 | #include "wx/dateevt.h" |
| 42 | |
| 43 | // apparently some versions of mingw define these macros erroneously |
| 44 | #ifndef DateTime_GetSystemtime |
| 45 | #define DateTime_GetSystemtime DateTime_GetSystemTime |
| 46 | #endif |
| 47 | |
| 48 | #ifndef DateTime_SetSystemtime |
| 49 | #define DateTime_SetSystemtime DateTime_SetSystemTime |
| 50 | #endif |
| 51 | |
| 52 | IMPLEMENT_DYNAMIC_CLASS(wxDatePickerCtrl, wxControl) |
| 53 | |
| 54 | // ============================================================================ |
| 55 | // implementation |
| 56 | // ============================================================================ |
| 57 | |
| 58 | // ---------------------------------------------------------------------------- |
| 59 | // helpers for wxDateTime <-> SYSTEMTIME conversion |
| 60 | // ---------------------------------------------------------------------------- |
| 61 | |
| 62 | static inline void wxFromSystemTime(wxDateTime *dt, const SYSTEMTIME& st) |
| 63 | { |
| 64 | dt->Set(st.wDay, |
| 65 | wx_static_cast(wxDateTime::Month, wxDateTime::Jan + st.wMonth - 1), |
| 66 | st.wYear, |
| 67 | 0, 0, 0); |
| 68 | } |
| 69 | |
| 70 | static inline void wxToSystemTime(SYSTEMTIME *st, const wxDateTime& dt) |
| 71 | { |
| 72 | const wxDateTime::Tm tm(dt.GetTm()); |
| 73 | |
| 74 | st->wYear = (WXWORD)tm.year; |
| 75 | st->wMonth = (WXWORD)(tm.mon - wxDateTime::Jan + 1); |
| 76 | st->wDay = tm.mday; |
| 77 | |
| 78 | st->wDayOfWeek = |
| 79 | st->wHour = |
| 80 | st->wMinute = |
| 81 | st->wSecond = |
| 82 | st->wMilliseconds = 0; |
| 83 | } |
| 84 | |
| 85 | // ---------------------------------------------------------------------------- |
| 86 | // wxDatePickerCtrl creation |
| 87 | // ---------------------------------------------------------------------------- |
| 88 | |
| 89 | bool |
| 90 | wxDatePickerCtrl::Create(wxWindow *parent, |
| 91 | wxWindowID id, |
| 92 | const wxDateTime& dt, |
| 93 | const wxPoint& pos, |
| 94 | const wxSize& size, |
| 95 | long style, |
| 96 | const wxValidator& validator, |
| 97 | const wxString& name) |
| 98 | { |
| 99 | // although we already call InitCommonControls() in app.cpp which is |
| 100 | // supposed to initialize all common controls, in comctl32.dll 4.72 (and |
| 101 | // presumably earlier versions 4.70 and 4.71, date time picker not being |
| 102 | // supported in < 4.70 anyhow) it does not do it and we have to initialize |
| 103 | // it explicitly |
| 104 | static bool s_initDone = false; // MT-ok: used from GUI thread only |
| 105 | if ( !s_initDone ) |
| 106 | { |
| 107 | #ifndef __WXWINCE__ |
| 108 | if ( wxApp::GetComCtl32Version() < 470 ) |
| 109 | { |
| 110 | wxLogError(_("This system doesn't support date picker control, please upgrade your version of comctl32.dll")); |
| 111 | |
| 112 | return false; |
| 113 | } |
| 114 | #endif |
| 115 | |
| 116 | #if wxUSE_DYNLIB_CLASS |
| 117 | INITCOMMONCONTROLSEX icex; |
| 118 | icex.dwSize = sizeof(icex); |
| 119 | icex.dwICC = ICC_DATE_CLASSES; |
| 120 | |
| 121 | wxDynamicLibrary dllComCtl32( |
| 122 | #ifdef __WXWINCE__ |
| 123 | _T("commctrl.dll") |
| 124 | #else |
| 125 | _T("comctl32.dll") |
| 126 | #endif |
| 127 | , wxDL_VERBATIM); |
| 128 | |
| 129 | if ( dllComCtl32.IsLoaded() ) |
| 130 | { |
| 131 | typedef BOOL (WINAPI *ICCEx_t)(INITCOMMONCONTROLSEX *); |
| 132 | wxDYNLIB_FUNCTION( ICCEx_t, InitCommonControlsEx, dllComCtl32 ); |
| 133 | |
| 134 | if ( pfnInitCommonControlsEx ) |
| 135 | { |
| 136 | (*pfnInitCommonControlsEx)(&icex); |
| 137 | } |
| 138 | |
| 139 | s_initDone = true; |
| 140 | } |
| 141 | #endif |
| 142 | } |
| 143 | |
| 144 | |
| 145 | // use wxDP_SPIN if wxDP_DEFAULT (0) was given as style |
| 146 | if ( !(style & wxDP_DROPDOWN) ) |
| 147 | style |= wxDP_SPIN; |
| 148 | |
| 149 | // initialize the base class |
| 150 | if ( !CreateControl(parent, id, pos, size, style, validator, name) ) |
| 151 | return false; |
| 152 | |
| 153 | // create the native control |
| 154 | if ( !MSWCreateControl(DATETIMEPICK_CLASS, wxEmptyString, pos, size) ) |
| 155 | return false; |
| 156 | |
| 157 | if ( dt.IsValid() || (style & wxDP_ALLOWNONE) ) |
| 158 | SetValue(dt); |
| 159 | else |
| 160 | SetValue(wxDateTime::Today()); |
| 161 | |
| 162 | return true; |
| 163 | } |
| 164 | |
| 165 | WXDWORD wxDatePickerCtrl::MSWGetStyle(long style, WXDWORD *exstyle) const |
| 166 | { |
| 167 | WXDWORD styleMSW = wxDatePickerCtrlBase::MSWGetStyle(style, exstyle); |
| 168 | |
| 169 | // although MSDN doesn't mention it, DTS_UPDOWN doesn't work with |
| 170 | // comctl32.dll 4.72 |
| 171 | if ( wxApp::GetComCtl32Version() > 472 && (style & wxDP_SPIN) ) |
| 172 | styleMSW |= DTS_UPDOWN; |
| 173 | //else: drop down by default |
| 174 | |
| 175 | #ifdef DTS_SHORTDATECENTURYFORMAT |
| 176 | if ( style & wxDP_SHOWCENTURY ) |
| 177 | styleMSW |= DTS_SHORTDATECENTURYFORMAT; |
| 178 | else |
| 179 | #endif // DTS_SHORTDATECENTURYFORMAT |
| 180 | styleMSW |= DTS_SHORTDATEFORMAT; |
| 181 | |
| 182 | if ( style & wxDP_ALLOWNONE ) |
| 183 | styleMSW |= DTS_SHOWNONE; |
| 184 | |
| 185 | return styleMSW; |
| 186 | } |
| 187 | |
| 188 | // TODO: handle WM_WININICHANGE |
| 189 | |
| 190 | // ---------------------------------------------------------------------------- |
| 191 | // wxDatePickerCtrl geometry |
| 192 | // ---------------------------------------------------------------------------- |
| 193 | |
| 194 | wxSize wxDatePickerCtrl::DoGetBestSize() const |
| 195 | { |
| 196 | wxClientDC dc(wx_const_cast(wxDatePickerCtrl *, this)); |
| 197 | dc.SetFont(GetFont()); |
| 198 | |
| 199 | // we can't use FormatDate() here as the CRT doesn't always use the same |
| 200 | // format as the date picker control |
| 201 | wxString s; |
| 202 | for ( int len = 100; ; len *= 2 ) |
| 203 | { |
| 204 | if ( ::GetDateFormat |
| 205 | ( |
| 206 | LOCALE_USER_DEFAULT, // the control should use the same |
| 207 | DATE_SHORTDATE, // the format used by the control |
| 208 | NULL, // use current date (we don't care) |
| 209 | NULL, // no custom format |
| 210 | wxStringBuffer(s, len), // output buffer |
| 211 | len // and its length |
| 212 | ) ) |
| 213 | { |
| 214 | // success |
| 215 | break; |
| 216 | } |
| 217 | |
| 218 | const DWORD rc = ::GetLastError(); |
| 219 | if ( rc != ERROR_INSUFFICIENT_BUFFER ) |
| 220 | { |
| 221 | wxLogApiError(_T("GetDateFormat"), rc); |
| 222 | |
| 223 | // fall back on wxDateTime, what else to do? |
| 224 | s = wxDateTime::Today().FormatDate(); |
| 225 | break; |
| 226 | } |
| 227 | } |
| 228 | |
| 229 | // the control adds a lot of extra space around separators |
| 230 | s.Replace(_T(","), _T(" , ")); |
| 231 | |
| 232 | int x, y; |
| 233 | dc.GetTextExtent(s, &x, &y); |
| 234 | |
| 235 | wxSize best(x + 40 /* margin + arrows */, EDIT_HEIGHT_FROM_CHAR_HEIGHT(y)); |
| 236 | CacheBestSize(best); |
| 237 | return best; |
| 238 | } |
| 239 | |
| 240 | // ---------------------------------------------------------------------------- |
| 241 | // wxDatePickerCtrl operations |
| 242 | // ---------------------------------------------------------------------------- |
| 243 | |
| 244 | void wxDatePickerCtrl::SetValue(const wxDateTime& dt) |
| 245 | { |
| 246 | wxCHECK_RET( dt.IsValid() || HasFlag(wxDP_ALLOWNONE), |
| 247 | _T("this control requires a valid date") ); |
| 248 | |
| 249 | SYSTEMTIME st; |
| 250 | if ( dt.IsValid() ) |
| 251 | wxToSystemTime(&st, dt); |
| 252 | if ( !DateTime_SetSystemtime(GetHwnd(), |
| 253 | dt.IsValid() ? GDT_VALID : GDT_NONE, |
| 254 | &st) ) |
| 255 | { |
| 256 | wxLogDebug(_T("DateTime_SetSystemtime() failed")); |
| 257 | } |
| 258 | |
| 259 | // we need to keep only the date part, times don't make sense for this |
| 260 | // control (in particular, comparisons with other dates would fail) |
| 261 | m_date = dt; |
| 262 | if ( m_date.IsValid() ) |
| 263 | m_date.ResetTime(); |
| 264 | } |
| 265 | |
| 266 | wxDateTime wxDatePickerCtrl::GetValue() const |
| 267 | { |
| 268 | #ifdef __WXDEBUG__ |
| 269 | wxDateTime dt; |
| 270 | SYSTEMTIME st; |
| 271 | if ( DateTime_GetSystemtime(GetHwnd(), &st) == GDT_VALID ) |
| 272 | { |
| 273 | wxFromSystemTime(&dt, st); |
| 274 | } |
| 275 | |
| 276 | wxASSERT_MSG( m_date.IsValid() == dt.IsValid() && |
| 277 | (!dt.IsValid() || dt == m_date), |
| 278 | _T("bug in wxDatePickerCtrl: m_date not in sync") ); |
| 279 | #endif // __WXDEBUG__ |
| 280 | |
| 281 | return m_date; |
| 282 | } |
| 283 | |
| 284 | void wxDatePickerCtrl::SetRange(const wxDateTime& dt1, const wxDateTime& dt2) |
| 285 | { |
| 286 | SYSTEMTIME st[2]; |
| 287 | |
| 288 | DWORD flags = 0; |
| 289 | if ( dt1.IsValid() ) |
| 290 | { |
| 291 | wxToSystemTime(&st[0], dt1); |
| 292 | flags |= GDTR_MIN; |
| 293 | } |
| 294 | |
| 295 | if ( dt2.IsValid() ) |
| 296 | { |
| 297 | wxToSystemTime(&st[1], dt2); |
| 298 | flags |= GDTR_MAX; |
| 299 | } |
| 300 | |
| 301 | if ( !DateTime_SetRange(GetHwnd(), flags, st) ) |
| 302 | { |
| 303 | wxLogDebug(_T("DateTime_SetRange() failed")); |
| 304 | } |
| 305 | } |
| 306 | |
| 307 | bool wxDatePickerCtrl::GetRange(wxDateTime *dt1, wxDateTime *dt2) const |
| 308 | { |
| 309 | SYSTEMTIME st[2]; |
| 310 | |
| 311 | DWORD flags = DateTime_GetRange(GetHwnd(), st); |
| 312 | if ( dt1 ) |
| 313 | { |
| 314 | if ( flags & GDTR_MIN ) |
| 315 | wxFromSystemTime(dt1, st[0]); |
| 316 | else |
| 317 | *dt1 = wxDefaultDateTime; |
| 318 | } |
| 319 | |
| 320 | if ( dt2 ) |
| 321 | { |
| 322 | if ( flags & GDTR_MAX ) |
| 323 | wxFromSystemTime(dt2, st[1]); |
| 324 | else |
| 325 | *dt2 = wxDefaultDateTime; |
| 326 | } |
| 327 | |
| 328 | return flags != 0; |
| 329 | } |
| 330 | |
| 331 | // ---------------------------------------------------------------------------- |
| 332 | // wxDatePickerCtrl events |
| 333 | // ---------------------------------------------------------------------------- |
| 334 | |
| 335 | bool |
| 336 | wxDatePickerCtrl::MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result) |
| 337 | { |
| 338 | NMHDR* hdr = (NMHDR *)lParam; |
| 339 | switch ( hdr->code ) |
| 340 | { |
| 341 | case DTN_DATETIMECHANGE: |
| 342 | { |
| 343 | NMDATETIMECHANGE *dtch = (NMDATETIMECHANGE *)hdr; |
| 344 | wxDateTime dt; |
| 345 | if ( dtch->dwFlags == GDT_VALID ) |
| 346 | wxFromSystemTime(&dt, dtch->st); |
| 347 | |
| 348 | // filter out duplicate DTN_DATETIMECHANGE events which the native |
| 349 | // control sends us when using wxDP_DROPDOWN style |
| 350 | if ( (m_date.IsValid() != dt.IsValid()) || |
| 351 | (m_date.IsValid() && dt != m_date) ) |
| 352 | { |
| 353 | m_date = dt; |
| 354 | wxDateEvent event(this, dt, wxEVT_DATE_CHANGED); |
| 355 | if ( GetEventHandler()->ProcessEvent(event) ) |
| 356 | { |
| 357 | *result = 0; |
| 358 | return true; |
| 359 | } |
| 360 | } |
| 361 | //else: both the old and new values are invalid, nothing changed |
| 362 | } |
| 363 | } |
| 364 | |
| 365 | return wxDatePickerCtrlBase::MSWOnNotify(idCtrl, lParam, result); |
| 366 | } |
| 367 | |
| 368 | #endif // wxUSE_DATEPICKCTRL |