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 // 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 explicitely
 104     static bool s_initDone = false; // MT-ok: used from GUI thread only
 105     if ( !s_initDone )
 106     {
 107         if ( wxApp::GetComCtl32Version() < 470 )
 108         {
 109             wxLogError(_("This system doesn't support date picker control, please upgrade your version of comctl32.dll"));
 110
 111             return false;
 112         }
 113
 114         INITCOMMONCONTROLSEX icex;
 115         icex.dwSize = sizeof(icex);
 116         icex.dwICC = ICC_DATE_CLASSES;
 117
 118         wxDynamicLibrary dllComCtl32(_T("comctl32.dll"), wxDL_VERBATIM);
 119
 120         typedef BOOL (WINAPI *ICCEx_t)(INITCOMMONCONTROLSEX *);
 121         wxDYNLIB_FUNCTION( ICCEx_t, InitCommonControlsEx, dllComCtl32 );
 122
 123         if ( pfnInitCommonControlsEx )
 124         {
 125             (*pfnInitCommonControlsEx)(&icex);
 126         }
 127
 128         s_initDone = true;
 129     }
 130
 131
 132     // use wxDP_SPIN if wxDP_DEFAULT (0) was given as style
 133     if ( !(style & wxDP_DROPDOWN) )
 134         style |= wxDP_SPIN;
 135
 136     // initialize the base class
 137     if ( !CreateControl(parent, id, pos, size, style, validator, name) )
 138         return false;
 139
 140     // create the native control
 141     if ( !MSWCreateControl(DATETIMEPICK_CLASS, wxEmptyString, pos, size) )
 142         return false;
 143
 144     if ( dt.IsValid() || (style & wxDP_ALLOWNONE) )
 145         SetValue(dt);
 146
 147     return true;
 148 }
 149
 150 WXDWORD wxDatePickerCtrl::MSWGetStyle(long style, WXDWORD *exstyle) const
 151 {
 152     WXDWORD styleMSW = wxDatePickerCtrlBase::MSWGetStyle(style, exstyle);
 153
 154     // although MSDN doesn't mention it, DTS_UPDOWN doesn't work with
 155     // comctl32.dll 4.72
 156     if ( wxApp::GetComCtl32Version() > 472 && (style & wxDP_SPIN) )
 157         styleMSW |= DTS_UPDOWN;
 158     //else: drop down by default
 159
 160 #ifdef DTS_SHORTDATECENTURYFORMAT
 161     if ( style & wxDP_SHOWCENTURY )
 162         styleMSW |= DTS_SHORTDATECENTURYFORMAT;
 163     else
 164 #endif // DTS_SHORTDATECENTURYFORMAT
 165         styleMSW |= DTS_SHORTDATEFORMAT;
 166
 167     if ( style & wxDP_ALLOWNONE )
 168         styleMSW |= DTS_SHOWNONE;
 169
 170     return styleMSW;
 171 }
 172
 173 // TODO: handle WM_WININICHANGE
 174
 175 // ----------------------------------------------------------------------------
 176 // wxDatePickerCtrl geometry
 177 // ----------------------------------------------------------------------------
 178
 179 wxSize wxDatePickerCtrl::DoGetBestSize() const
 180 {
 181     const int y = GetCharHeight();
 182
 183     wxSize best(DEFAULT_ITEM_WIDTH, EDIT_HEIGHT_FROM_CHAR_HEIGHT(y));
 184     CacheBestSize(best);
 185     return best;
 186 }
 187
 188 // ----------------------------------------------------------------------------
 189 // wxDatePickerCtrl operations
 190 // ----------------------------------------------------------------------------
 191
 192 void wxDatePickerCtrl::SetValue(const wxDateTime& dt)
 193 {
 194     wxCHECK_RET( dt.IsValid() || HasFlag(wxDP_ALLOWNONE),
 195                     _T("this control requires a valid date") );
 196
 197     SYSTEMTIME st;
 198     if ( dt.IsValid() )
 199         wxToSystemTime(&st, dt);
 200     if ( !DateTime_SetSystemtime(GetHwnd(),
 201                                  dt.IsValid() ? GDT_VALID : GDT_NONE,
 202                                  &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