include/wx/msw/datetimectrl.h

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // Name:        wx/msw/datetimectrl.h
   3 // Purpose:     wxDateTimePickerCtrl for Windows.
   4 // Author:      Vadim Zeitlin
   5 // Created:     2011-09-22 (extracted from wx/msw/datectrl.h).
   6 // Copyright:   (c) 2005-2011 Vadim Zeitlin <vadim@wxwindows.org>
   7 // Licence:     wxWindows licence
   8 ///////////////////////////////////////////////////////////////////////////////
   9
  10 #ifndef _WX_MSW_DATETIMECTRL_H_
  11 #define _WX_MSW_DATETIMECTRL_H_
  12
  13 #include "wx/intl.h"
  14
  15 // Forward declare a struct from Platform SDK.
  16 struct tagNMDATETIMECHANGE;
  17
  18 // ----------------------------------------------------------------------------
  19 // wxDateTimePickerCtrl
  20 // ----------------------------------------------------------------------------
  21
  22 class WXDLLIMPEXP_ADV wxDateTimePickerCtrl : public wxDateTimePickerCtrlBase
  23 {
  24 public:
  25     // set/get the date
  26     virtual void SetValue(const wxDateTime& dt);
  27     virtual wxDateTime GetValue() const;
  28
  29     // returns true if the platform should explicitly apply a theme border
  30     virtual bool CanApplyThemeBorder() const { return false; }
  31
  32     virtual bool MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result);
  33
  34 protected:
  35     virtual wxBorder GetDefaultBorder() const { return wxBORDER_NONE; }
  36     virtual wxSize DoGetBestSize() const;
  37
  38     // Helper for the derived classes Create(): creates a native control with
  39     // the specified attributes.
  40     bool MSWCreateDateTimePicker(wxWindow *parent,
  41                                  wxWindowID id,
  42                                  const wxDateTime& dt,
  43                                  const wxPoint& pos,
  44                                  const wxSize& size,
  45                                  long style,
  46                                  const wxValidator& validator,
  47                                  const wxString& name);
  48
  49     // Notice that the methods below must be overridden in all native MSW
  50     // classes inheriting from this one but they can't be pure virtual because
  51     // the generic implementations, not needing nor able to implement them, is
  52     // also derived from this class currently. The real problem is, of course,
  53     // this wrong class structure because the generic classes also inherit the
  54     // wrong implementations of Set/GetValue() and DoGetBestSize() but as they
  55     // override these methods anyhow, it does work -- but is definitely ugly
  56     // and need to be changed (but how?) in the future.
  57
  58     // Override to return the date/time format used by this control.
  59     virtual wxLocaleInfo MSWGetFormat() const /* = 0 */
  60     {
  61         wxFAIL_MSG( "Unreachable" );
  62         return wxLOCALE_TIME_FMT;
  63     }
  64
  65     // Override to indicate whether we can have no date at all.
  66     virtual bool MSWAllowsNone() const /* = 0 */
  67     {
  68         wxFAIL_MSG( "Unreachable" );
  69         return false;
  70     }
  71
  72     // Override to update m_date and send the event when the control contents
  73     // changes, return true if the event was handled.
  74     virtual bool MSWOnDateTimeChange(const tagNMDATETIMECHANGE& dtch) /* = 0 */
  75     {
  76         wxUnusedVar(dtch);
  77         wxFAIL_MSG( "Unreachable" );
  78         return false;
  79     }
  80
  81
  82     // the date currently shown by the control, may be invalid
  83     wxDateTime m_date;
  84 };
  85
  86 #endif // _WX_MSW_DATETIMECTRL_H_