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