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     styleMSW |= DTS_SHORTDATEFORMAT;
 150
 151     return styleMSW;
 152 }
 153
 154 // TODO: handle WM_WININICHANGE
 155
 156 // ----------------------------------------------------------------------------
 157 // wxDatePickerCtrl geometry
 158 // ----------------------------------------------------------------------------
 159
 160 wxSize wxDatePickerCtrl::DoGetBestSize() const
 161 {
 162     const int y = GetCharHeight();
 163
 164     return wxSize(DEFAULT_ITEM_WIDTH, EDIT_HEIGHT_FROM_CHAR_HEIGHT(y));
 165 }
 166
 167 // ----------------------------------------------------------------------------
 168 // wxDatePickerCtrl operations
 169 // ----------------------------------------------------------------------------
 170
 171 void wxDatePickerCtrl::SetValue(const wxDateTime& dt)
 172 {
 173     // as we don't support DTS_SHOWNONE style so far, we don't allow setting
 174     // the control to an invalid date, but this restriction may be lifted in
 175     // the future
 176     wxCHECK_RET( dt.IsValid(), _T("invalid date") );
 177
 178     SYSTEMTIME st;
 179     wxToSystemTime(&st, dt);
 180     if ( !DateTime_SetSystemtime(GetHwnd(), GDT_VALID, &st) )
 181     {
 182         wxLogDebug(_T("DateTime_SetSystemtime() failed"));
 183     }
 184 }
 185
 186 wxDateTime wxDatePickerCtrl::GetValue() const
 187 {
 188     wxDateTime dt;
 189     SYSTEMTIME st;
 190     if ( DateTime_GetSystemtime(GetHwnd(), &st) == GDT_VALID )
 191     {
 192         wxFromSystemTime(&dt, st);
 193     }
 194
 195     return dt;
 196 }
 197
 198 void wxDatePickerCtrl::SetRange(const wxDateTime& dt1, const wxDateTime& dt2)
 199 {
 200     SYSTEMTIME st[2];
 201
 202     DWORD flags = 0;
 203     if ( dt1.IsValid() )
 204     {
 205         wxToSystemTime(&st[0], dt1);
 206         flags |= GDTR_MIN;
 207     }
 208
 209     if ( dt2.IsValid() )
 210     {
 211         wxToSystemTime(&st[1], dt2);
 212         flags |= GDTR_MAX;
 213     }
 214
 215     if ( !DateTime_SetRange(GetHwnd(), flags, st) )
 216     {
 217         wxLogDebug(_T("DateTime_SetRange() failed"));
 218     }
 219 }
 220
 221 bool wxDatePickerCtrl::GetRange(wxDateTime *dt1, wxDateTime *dt2) const
 222 {
 223     SYSTEMTIME st[2];
 224
 225     DWORD flags = DateTime_GetRange(GetHwnd(), st);
 226     if ( dt1 )
 227     {
 228         if ( flags & GDTR_MIN )
 229             wxFromSystemTime(dt1, st[0]);
 230         else
 231             *dt1 = wxDefaultDateTime;
 232     }
 233
 234     if ( dt2 )
 235     {
 236         if ( flags & GDTR_MAX )
 237             wxFromSystemTime(dt2, st[1]);
 238         else
 239             *dt2 = wxDefaultDateTime;
 240     }
 241
 242     return flags != 0;
 243 }
 244
 245 // ----------------------------------------------------------------------------
 246 // wxDatePickerCtrl events
 247 // ----------------------------------------------------------------------------
 248
 249 bool
 250 wxDatePickerCtrl::MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result)
 251 {
 252     NMHDR* hdr = (NMHDR *)lParam;
 253     switch ( hdr->code )
 254     {
 255         case DTN_DATETIMECHANGE:
 256             NMDATETIMECHANGE *dtch = (NMDATETIMECHANGE *)hdr;
 257             wxDateTime dt;
 258             if ( dtch->dwFlags == GDT_VALID )
 259                 wxFromSystemTime(&dt, dtch->st);
 260
 261             wxDateEvent event(this, dt, wxEVT_DATE_CHANGED);
 262             if ( GetEventHandler()->ProcessEvent(event) )
 263             {
 264                 *result = 0;
 265                 return true;
 266             }
 267     }
 268
 269     return wxDatePickerCtrlBase::MSWOnNotify(idCtrl, lParam, result);
 270 }
 271
 272 #endif // wxUSE_DATEPICKCTRL
 273