src/msw/datectrl.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        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 #ifndef WX_PRECOMP
  27 #endif
  28
  29 #if wxUSE_DATEPICKCTRL
  30
  31 #include "wx/datectrl.h"
  32 #include "wx/app.h"
  33 #include "wx/intl.h"
  34 #include "wx/dynlib.h"
  35
  36 #define _WX_DEFINE_DATE_EVENTS_
  37 #include "wx/dateevt.h"
  38
  39 #include "wx/msw/wrapwin.h"
  40 #include "wx/msw/wrapcctl.h"
  41 #include "wx/msw/private.h"
  42
  43 #if defined(__GNUWIN32__) && ! wxCHECK_W32API_VERSION( 2, 4 )
  44 typedef struct tagNMDATETIMECHANGE
  45 {
  46     NMHDR       nmhdr;
  47     DWORD       dwFlags;
  48     SYSTEMTIME  st;
  49 } NMDATETIMECHANGE, FAR * LPNMDATETIMECHANGE;
  50 #endif
  51
  52 // ============================================================================
  53 // implementation
  54 // ============================================================================
  55
  56 // ----------------------------------------------------------------------------
  57 // helpers for wxDateTime <-> SYSTEMTIME conversion
  58 // ----------------------------------------------------------------------------
  59
  60 static inline void wxFromSystemTime(wxDateTime *dt, const SYSTEMTIME& st)
  61 {
  62     dt->Set(st.wDay,
  63             wx_static_cast(wxDateTime::Month, wxDateTime::Jan + st.wMonth - 1),
  64             st.wYear,
  65             0, 0, 0);
  66 }
  67
  68 static inline void wxToSystemTime(SYSTEMTIME *st, const wxDateTime& dt)
  69 {
  70     const wxDateTime::Tm tm(dt.GetTm());
  71
  72     st->wYear = (WXWORD)tm.year;
  73     st->wMonth = (WXWORD)(tm.mon - wxDateTime::Jan + 1);
  74     st->wDay = tm.mday;
  75
  76     st->wDayOfWeek =
  77     st->wHour =
  78     st->wMinute =
  79     st->wSecond =
  80     st->wMilliseconds = 0;
  81 }
  82
  83 // ----------------------------------------------------------------------------
  84 // wxDatePickerCtrl creation
  85 // ----------------------------------------------------------------------------
  86
  87 bool
  88 wxDatePickerCtrl::Create(wxWindow *parent,
  89                          wxWindowID id,
  90                          const wxDateTime& dt,
  91                          const wxPoint& pos,
  92                          const wxSize& size,
  93                          long style,
  94                          const wxValidator& validator,
  95                          const wxString& name)
  96 {
  97     // although we already call InitCommonControls() in app.cpp which is
  98     // supposed to initialize all common controls, in comctl32.dll 4.72 (and
  99     // presumably earlier versions 4.70 and 4.71, date time picker not being
 100     // supported in < 4.70 anyhow) it does not do it and we have to initialize
 101     // it explicitely
 102     static bool s_initDone = false; // MT-ok: used from GUI thread only
 103     if ( !s_initDone )
 104     {
 105         if ( wxTheApp->GetComCtl32Version() < 470 )
 106         {
 107             wxLogError(_("This system doesn't support date picker control, please upgrade your version of comctl32.dll"));
 108
 109             return false;
 110         }
 111
 112         INITCOMMONCONTROLSEX icex;
 113         icex.dwSize = sizeof(icex);
 114         icex.dwICC = ICC_DATE_CLASSES;
 115
 116         wxDynamicLibrary dllComCtl32(_T("comctl32.dll"), wxDL_VERBATIM);
 117
 118         typedef BOOL (WINAPI *ICCEx_t)(INITCOMMONCONTROLSEX *);
 119         wxDYNLIB_FUNCTION( ICCEx_t, InitCommonControlsEx, dllComCtl32 );
 120
 121         if ( pfnInitCommonControlsEx )
 122         {
 123             (*pfnInitCommonControlsEx)(&icex);
 124         }
 125
 126         s_initDone = true;
 127     }
 128
 129
 130     // use wxDP_SPIN if wxDP_DEFAULT (0) was given as style
 131     if ( !(style & wxDP_DROPDOWN) )
 132         style |= wxDP_SPIN;
 133
 134     // initialize the base class
 135     if ( !CreateControl(parent, id, pos, size, style, validator, name) )
 136         return false;
 137
 138     // create the native control
 139     if ( !MSWCreateControl(DATETIMEPICK_CLASS, wxEmptyString, pos, size) )
 140         return false;
 141
 142     if ( dt.IsValid() )
 143         SetValue(dt);
 144
 145     return true;
 146 }
 147
 148 WXDWORD wxDatePickerCtrl::MSWGetStyle(long style, WXDWORD *exstyle) const
 149 {
 150     WXDWORD styleMSW = wxDatePickerCtrlBase::MSWGetStyle(style, exstyle);
 151
 152     // although MSDN doesn't mention it, DTS_UPDOWN doesn't work with
 153     // comctl32.dll 4.72
 154     if ( wxTheApp->GetComCtl32Version() > 472 && (style & wxDP_SPIN) )
 155         styleMSW |= DTS_UPDOWN;
 156     //else: drop down by default
 157
 158 #ifdef DTS_SHORTDATECENTURYFORMAT
 159     if ( style & wxDP_SHOWCENTURY )
 160         styleMSW |= DTS_SHORTDATECENTURYFORMAT;
 161     else
 162 #endif // DTS_SHORTDATECENTURYFORMAT
 163         styleMSW |= DTS_SHORTDATEFORMAT;
 164
 165     return styleMSW;
 166 }
 167
 168 // TODO: handle WM_WININICHANGE
 169
 170 // ----------------------------------------------------------------------------
 171 // wxDatePickerCtrl geometry
 172 // ----------------------------------------------------------------------------
 173
 174 wxSize wxDatePickerCtrl::DoGetBestSize() const
 175 {
 176     const int y = GetCharHeight();
 177
 178     return wxSize(DEFAULT_ITEM_WIDTH, EDIT_HEIGHT_FROM_CHAR_HEIGHT(y));
 179 }
 180
 181 // ----------------------------------------------------------------------------
 182 // wxDatePickerCtrl operations
 183 // ----------------------------------------------------------------------------
 184
 185 #ifndef DateTime_GetSystemtime
 186     #define DateTime_GetSystemtime DateTime_GetSystemTime
 187 #endif
 188
 189 #ifndef DateTime_SetSystemtime
 190     #define DateTime_SetSystemtime DateTime_SetSystemTime
 191 #endif
 192
 193 void wxDatePickerCtrl::SetValue(const wxDateTime& dt)
 194 {
 195     // as we don't support DTS_SHOWNONE style so far, we don't allow setting
 196     // the control to an invalid date, but this restriction may be lifted in
 197     // the future
 198     wxCHECK_RET( dt.IsValid(), _T("invalid date") );
 199
 200     SYSTEMTIME st;
 201     wxToSystemTime(&st, dt);
 202     if ( !DateTime_SetSystemtime(GetHwnd(), GDT_VALID, &st) )
 203     {
 204         wxLogDebug(_T("DateTime_SetSystemtime() failed"));
 205     }
 206 }
 207
 208 wxDateTime wxDatePickerCtrl::GetValue() const
 209 {
 210     wxDateTime dt;
 211     SYSTEMTIME st;
 212     if ( DateTime_GetSystemtime(GetHwnd(), &st) == GDT_VALID )
 213     {
 214         wxFromSystemTime(&dt, st);
 215     }
 216
 217     return dt;
 218 }
 219
 220 void wxDatePickerCtrl::SetRange(const wxDateTime& dt1, const wxDateTime& dt2)
 221 {
 222     SYSTEMTIME st[2];
 223
 224     DWORD flags = 0;
 225     if ( dt1.IsValid() )
 226     {
 227         wxToSystemTime(&st[0], dt1);
 228         flags |= GDTR_MIN;
 229     }
 230
 231     if ( dt2.IsValid() )
 232     {
 233         wxToSystemTime(&st[1], dt2);
 234         flags |= GDTR_MAX;
 235     }
 236
 237     if ( !DateTime_SetRange(GetHwnd(), flags, st) )
 238     {
 239         wxLogDebug(_T("DateTime_SetRange() failed"));
 240     }
 241 }
 242
 243 bool wxDatePickerCtrl::GetRange(wxDateTime *dt1, wxDateTime *dt2) const
 244 {
 245     SYSTEMTIME st[2];
 246
 247     DWORD flags = DateTime_GetRange(GetHwnd(), st);
 248     if ( dt1 )
 249     {
 250         if ( flags & GDTR_MIN )
 251             wxFromSystemTime(dt1, st[0]);
 252         else
 253             *dt1 = wxDefaultDateTime;
 254     }
 255
 256     if ( dt2 )
 257     {
 258         if ( flags & GDTR_MAX )
 259             wxFromSystemTime(dt2, st[1]);
 260         else
 261             *dt2 = wxDefaultDateTime;
 262     }
 263
 264     return flags != 0;
 265 }
 266
 267 // ----------------------------------------------------------------------------
 268 // wxDatePickerCtrl events
 269 // ----------------------------------------------------------------------------
 270
 271 bool
 272 wxDatePickerCtrl::MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result)
 273 {
 274     NMHDR* hdr = (NMHDR *)lParam;
 275     switch ( hdr->code )
 276     {
 277         case DTN_DATETIMECHANGE:
 278             NMDATETIMECHANGE *dtch = (NMDATETIMECHANGE *)hdr;
 279             wxDateTime dt;
 280             if ( dtch->dwFlags == GDT_VALID )
 281                 wxFromSystemTime(&dt, dtch->st);
 282
 283             wxDateEvent event(this, dt, wxEVT_DATE_CHANGED);
 284             if ( GetEventHandler()->ProcessEvent(event) )
 285             {
 286                 *result = 0;
 287                 return true;
 288             }
 289     }
 290
 291     return wxDatePickerCtrlBase::MSWOnNotify(idCtrl, lParam, result);
 292 }
 293
 294 #endif // wxUSE_DATEPICKCTRL
 295