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() )
 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     return wxSize(DEFAULT_ITEM_WIDTH, EDIT_HEIGHT_FROM_CHAR_HEIGHT(y));
 184 }
 185
 186 // ----------------------------------------------------------------------------
 187 // wxDatePickerCtrl operations
 188 // ----------------------------------------------------------------------------
 189
 190 void wxDatePickerCtrl::SetValue(const wxDateTime& dt)
 191 {
 192     wxCHECK_RET( dt.IsValid() || HasFlag(wxDP_ALLOWNONE),
 193                     _T("this control requires a valid date") );
 194
 195     SYSTEMTIME st;
 196     if ( dt.IsValid() )
 197         wxToSystemTime(&st, dt);
 198     if ( !DateTime_SetSystemtime(GetHwnd(),
 199                                  dt.IsValid() ? GDT_VALID : GDT_NONE,
 200                                  &st) )
 201     {
 202         wxLogDebug(_T("DateTime_SetSystemtime() failed"));
 203     }
 204 }
 205
 206 wxDateTime wxDatePickerCtrl::GetValue() const
 207 {
 208     wxDateTime dt;
 209     SYSTEMTIME st;
 210     if ( DateTime_GetSystemtime(GetHwnd(), &st) == GDT_VALID )
 211     {
 212         wxFromSystemTime(&dt, st);
 213     }
 214
 215     return dt;
 216 }
 217
 218 void wxDatePickerCtrl::SetRange(const wxDateTime& dt1, const wxDateTime& dt2)
 219 {
 220     SYSTEMTIME st[2];
 221
 222     DWORD flags = 0;
 223     if ( dt1.IsValid() )
 224     {
 225         wxToSystemTime(&st[0], dt1);
 226         flags |= GDTR_MIN;
 227     }
 228
 229     if ( dt2.IsValid() )
 230     {
 231         wxToSystemTime(&st[1], dt2);
 232         flags |= GDTR_MAX;
 233     }
 234
 235     if ( !DateTime_SetRange(GetHwnd(), flags, st) )
 236     {
 237         wxLogDebug(_T("DateTime_SetRange() failed"));
 238     }
 239 }
 240
 241 bool wxDatePickerCtrl::GetRange(wxDateTime *dt1, wxDateTime *dt2) const
 242 {
 243     SYSTEMTIME st[2];
 244
 245     DWORD flags = DateTime_GetRange(GetHwnd(), st);
 246     if ( dt1 )
 247     {
 248         if ( flags & GDTR_MIN )
 249             wxFromSystemTime(dt1, st[0]);
 250         else
 251             *dt1 = wxDefaultDateTime;
 252     }
 253
 254     if ( dt2 )
 255     {
 256         if ( flags & GDTR_MAX )
 257             wxFromSystemTime(dt2, st[1]);
 258         else
 259             *dt2 = wxDefaultDateTime;
 260     }
 261
 262     return flags != 0;
 263 }
 264
 265 // ----------------------------------------------------------------------------
 266 // wxDatePickerCtrl events
 267 // ----------------------------------------------------------------------------
 268
 269 bool
 270 wxDatePickerCtrl::MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result)
 271 {
 272     NMHDR* hdr = (NMHDR *)lParam;
 273     switch ( hdr->code )
 274     {
 275         case DTN_DATETIMECHANGE:
 276             NMDATETIMECHANGE *dtch = (NMDATETIMECHANGE *)hdr;
 277             wxDateTime dt;
 278             if ( dtch->dwFlags == GDT_VALID )
 279                 wxFromSystemTime(&dt, dtch->st);
 280
 281             wxDateEvent event(this, dt, wxEVT_DATE_CHANGED);
 282             if ( GetEventHandler()->ProcessEvent(event) )
 283             {
 284                 *result = 0;
 285                 return true;
 286             }
 287     }
 288
 289     return wxDatePickerCtrlBase::MSWOnNotify(idCtrl, lParam, result);
 290 }
 291
 292 #endif // wxUSE_DATEPICKCTRL
 293