include/wx/calctrl.h

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // Name:        wx/calctrl.h
   3 // Purpose:     date-picker control
   4 // Author:      Vadim Zeitlin
   5 // Modified by:
   6 // Created:     29.12.99
   7 // Copyright:   (c) 1999 Vadim Zeitlin <zeitlin@dptmaths.ens-cachan.fr>
   8 // Licence:     wxWindows licence
   9 ///////////////////////////////////////////////////////////////////////////////
  10
  11 #ifndef _WX_CALCTRL_H_
  12 #define _WX_CALCTRL_H_
  13
  14 #include "wx/defs.h"
  15
  16 #if wxUSE_CALENDARCTRL
  17
  18 #include "wx/dateevt.h"
  19 #include "wx/colour.h"
  20 #include "wx/font.h"
  21 #include "wx/control.h"
  22
  23 // ----------------------------------------------------------------------------
  24 // wxCalendarCtrl flags
  25 // ----------------------------------------------------------------------------
  26
  27 enum
  28 {
  29     // show Sunday as the first day of the week (default)
  30     wxCAL_SUNDAY_FIRST               = 0x0000,
  31
  32     // show Monday as the first day of the week
  33     wxCAL_MONDAY_FIRST               = 0x0001,
  34
  35     // highlight holidays
  36     wxCAL_SHOW_HOLIDAYS              = 0x0002,
  37
  38     // disable the year change control, show only the month change one
  39     // deprecated
  40     wxCAL_NO_YEAR_CHANGE             = 0x0004,
  41
  42     // don't allow changing neither month nor year (implies
  43     // wxCAL_NO_YEAR_CHANGE)
  44     wxCAL_NO_MONTH_CHANGE            = 0x000c,
  45
  46     // use MS-style month-selection instead of combo-spin combination
  47     wxCAL_SEQUENTIAL_MONTH_SELECTION = 0x0010,
  48
  49     // show the neighbouring weeks in the previous and next month
  50     wxCAL_SHOW_SURROUNDING_WEEKS     = 0x0020,
  51
  52     // show week numbers on the left side of the calendar.
  53     wxCAL_SHOW_WEEK_NUMBERS          = 0x0040
  54 };
  55
  56 // ----------------------------------------------------------------------------
  57 // constants
  58 // ----------------------------------------------------------------------------
  59
  60 // return values for the HitTest() method
  61 enum wxCalendarHitTestResult
  62 {
  63     wxCAL_HITTEST_NOWHERE,      // outside of anything
  64     wxCAL_HITTEST_HEADER,       // on the header (weekdays)
  65     wxCAL_HITTEST_DAY,          // on a day in the calendar
  66     wxCAL_HITTEST_INCMONTH,
  67     wxCAL_HITTEST_DECMONTH,
  68     wxCAL_HITTEST_SURROUNDING_WEEK,
  69     wxCAL_HITTEST_WEEK
  70 };
  71
  72 // border types for a date
  73 enum wxCalendarDateBorder
  74 {
  75     wxCAL_BORDER_NONE,          // no border (default)
  76     wxCAL_BORDER_SQUARE,        // a rectangular border
  77     wxCAL_BORDER_ROUND          // a round border
  78 };
  79
  80 // ----------------------------------------------------------------------------
  81 // wxCalendarDateAttr: custom attributes for a calendar date
  82 // ----------------------------------------------------------------------------
  83
  84 class WXDLLIMPEXP_ADV wxCalendarDateAttr
  85 {
  86 public:
  87     // ctors
  88     wxCalendarDateAttr(const wxColour& colText = wxNullColour,
  89                        const wxColour& colBack = wxNullColour,
  90                        const wxColour& colBorder = wxNullColour,
  91                        const wxFont& font = wxNullFont,
  92                        wxCalendarDateBorder border = wxCAL_BORDER_NONE)
  93         : m_colText(colText), m_colBack(colBack),
  94           m_colBorder(colBorder), m_font(font)
  95     {
  96         Init(border);
  97     }
  98     wxCalendarDateAttr(wxCalendarDateBorder border,
  99                        const wxColour& colBorder = wxNullColour)
 100         : m_colBorder(colBorder)
 101     {
 102         Init(border);
 103     }
 104
 105     // setters
 106     void SetTextColour(const wxColour& colText) { m_colText = colText; }
 107     void SetBackgroundColour(const wxColour& colBack) { m_colBack = colBack; }
 108     void SetBorderColour(const wxColour& col) { m_colBorder = col; }
 109     void SetFont(const wxFont& font) { m_font = font; }
 110     void SetBorder(wxCalendarDateBorder border) { m_border = border; }
 111     void SetHoliday(bool holiday) { m_holiday = holiday; }
 112
 113     // accessors
 114     bool HasTextColour() const { return m_colText.IsOk(); }
 115     bool HasBackgroundColour() const { return m_colBack.IsOk(); }
 116     bool HasBorderColour() const { return m_colBorder.IsOk(); }
 117     bool HasFont() const { return m_font.IsOk(); }
 118     bool HasBorder() const { return m_border != wxCAL_BORDER_NONE; }
 119
 120     bool IsHoliday() const { return m_holiday; }
 121
 122     const wxColour& GetTextColour() const { return m_colText; }
 123     const wxColour& GetBackgroundColour() const { return m_colBack; }
 124     const wxColour& GetBorderColour() const { return m_colBorder; }
 125     const wxFont& GetFont() const { return m_font; }
 126     wxCalendarDateBorder GetBorder() const { return m_border; }
 127
 128     // get or change the "mark" attribute, i.e. the one used for the items
 129     // marked with wxCalendarCtrl::Mark()
 130     static const wxCalendarDateAttr& GetMark() { return m_mark; }
 131     static void SetMark(wxCalendarDateAttr const& m) { m_mark = m; }
 132
 133 protected:
 134     void Init(wxCalendarDateBorder border = wxCAL_BORDER_NONE)
 135     {
 136         m_border = border;
 137         m_holiday = false;
 138     }
 139
 140 private:
 141     static wxCalendarDateAttr m_mark;
 142
 143     wxColour m_colText,
 144              m_colBack,
 145              m_colBorder;
 146     wxFont   m_font;
 147     wxCalendarDateBorder m_border;
 148     bool m_holiday;
 149 };
 150
 151 // ----------------------------------------------------------------------------
 152 // wxCalendarCtrl events
 153 // ----------------------------------------------------------------------------
 154
 155 class WXDLLIMPEXP_FWD_ADV wxCalendarCtrl;
 156
 157 class WXDLLIMPEXP_ADV wxCalendarEvent : public wxDateEvent
 158 {
 159 public:
 160     wxCalendarEvent() : m_wday(wxDateTime::Inv_WeekDay)  { }
 161     wxCalendarEvent(wxWindow *win, const wxDateTime& dt, wxEventType type)
 162         : wxDateEvent(win, dt, type),
 163           m_wday(wxDateTime::Inv_WeekDay) { }
 164     wxCalendarEvent(const wxCalendarEvent& event)
 165         : wxDateEvent(event), m_wday(event.m_wday) { }
 166
 167     void SetWeekDay(const wxDateTime::WeekDay wd) { m_wday = wd; }
 168     wxDateTime::WeekDay GetWeekDay() const { return m_wday; }
 169
 170     virtual wxEvent *Clone() const { return new wxCalendarEvent(*this); }
 171
 172 private:
 173     wxDateTime::WeekDay m_wday;
 174
 175     DECLARE_DYNAMIC_CLASS_NO_ASSIGN(wxCalendarEvent)
 176 };
 177
 178 // ----------------------------------------------------------------------------
 179 // wxCalendarCtrlBase
 180 // ----------------------------------------------------------------------------
 181
 182 class WXDLLIMPEXP_ADV wxCalendarCtrlBase : public wxControl
 183 {
 184 public:
 185     // do we allow changing the month/year?
 186     bool AllowMonthChange() const { return !HasFlag(wxCAL_NO_MONTH_CHANGE); }
 187
 188     // get/set the current date
 189     virtual wxDateTime GetDate() const = 0;
 190     virtual bool SetDate(const wxDateTime& date) = 0;
 191
 192
 193     // restricting the dates shown by the control to the specified range: only
 194     // implemented in the generic and MSW versions for now
 195
 196     // if either date is set, the corresponding limit will be enforced and true
 197     // returned; if none are set, the existing restrictions are removed and
 198     // false is returned
 199     virtual bool
 200     SetDateRange(const wxDateTime& WXUNUSED(lowerdate) = wxDefaultDateTime,
 201                  const wxDateTime& WXUNUSED(upperdate) = wxDefaultDateTime)
 202     {
 203         return false;
 204     }
 205
 206     // retrieves the limits currently in use (wxDefaultDateTime if none) in the
 207     // provided pointers (which may be NULL) and returns true if there are any
 208     // limits or false if none
 209     virtual bool
 210     GetDateRange(wxDateTime *lowerdate, wxDateTime *upperdate) const
 211     {
 212         if ( lowerdate )
 213             *lowerdate = wxDefaultDateTime;
 214         if ( upperdate )
 215             *upperdate = wxDefaultDateTime;
 216         return false;
 217     }
 218
 219     // returns one of wxCAL_HITTEST_XXX constants and fills either date or wd
 220     // with the corresponding value (none for NOWHERE, the date for DAY and wd
 221     // for HEADER)
 222     //
 223     // notice that this is not implemented in all versions
 224     virtual wxCalendarHitTestResult
 225     HitTest(const wxPoint& WXUNUSED(pos),
 226             wxDateTime* WXUNUSED(date) = NULL,
 227             wxDateTime::WeekDay* WXUNUSED(wd) = NULL)
 228     {
 229         return wxCAL_HITTEST_NOWHERE;
 230     }
 231
 232     // allow or disable changing the current month (and year), return true if
 233     // the value of this option really changed or false if it was already set
 234     // to the required value
 235     //
 236     // NB: we provide implementation for this pure virtual function, derived
 237     //     classes should call it
 238     virtual bool EnableMonthChange(bool enable = true) = 0;
 239
 240
 241     // an item without custom attributes is drawn with the default colours and
 242     // font and without border, setting custom attributes allows to modify this
 243     //
 244     // the day parameter should be in 1..31 range, for days 29, 30, 31 the
 245     // corresponding attribute is just unused if there is no such day in the
 246     // current month
 247     //
 248     // notice that currently arbitrary attributes are supported only in the
 249     // generic version, the native controls only support Mark() which assigns
 250     // some special appearance (which can be customized using SetMark() for the
 251     // generic version) to the given day
 252
 253     virtual void Mark(size_t day, bool mark) = 0;
 254
 255     virtual wxCalendarDateAttr *GetAttr(size_t WXUNUSED(day)) const
 256         { return NULL; }
 257     virtual void SetAttr(size_t WXUNUSED(day), wxCalendarDateAttr *attr)
 258         { delete attr; }
 259     virtual void ResetAttr(size_t WXUNUSED(day)) { }
 260
 261
 262     // holidays support
 263     //
 264     // currently only the generic version implements all functions in this
 265     // section; wxMSW implements simple support for holidays (they can be
 266     // just enabled or disabled) and wxGTK doesn't support them at all
 267
 268     // equivalent to changing wxCAL_SHOW_HOLIDAYS flag but should be called
 269     // instead of just changing it
 270     virtual void EnableHolidayDisplay(bool display = true);
 271
 272     // set/get the colours to use for holidays (if they're enabled)
 273     virtual void SetHolidayColours(const wxColour& WXUNUSED(colFg),
 274                                    const wxColour& WXUNUSED(colBg)) { }
 275
 276     virtual const wxColour& GetHolidayColourFg() const { return wxNullColour; }
 277     virtual const wxColour& GetHolidayColourBg() const { return wxNullColour; }
 278
 279     // mark the given day of the current month as being a holiday
 280     virtual void SetHoliday(size_t WXUNUSED(day)) { }
 281
 282
 283     // customizing the colours of the controls
 284     //
 285     // most of the methods in this section are only implemented by the native
 286     // version of the control and do nothing in the native ones
 287
 288     // set/get the colours to use for the display of the week day names at the
 289     // top of the controls
 290     virtual void SetHeaderColours(const wxColour& WXUNUSED(colFg),
 291                                   const wxColour& WXUNUSED(colBg)) { }
 292
 293     virtual const wxColour& GetHeaderColourFg() const { return wxNullColour; }
 294     virtual const wxColour& GetHeaderColourBg() const { return wxNullColour; }
 295
 296     // set/get the colours used for the currently selected date
 297     virtual void SetHighlightColours(const wxColour& WXUNUSED(colFg),
 298                                      const wxColour& WXUNUSED(colBg)) { }
 299
 300     virtual const wxColour& GetHighlightColourFg() const { return wxNullColour; }
 301     virtual const wxColour& GetHighlightColourBg() const { return wxNullColour; }
 302
 303
 304     // implementation only from now on
 305
 306     // generate the given calendar event, return true if it was processed
 307     //
 308     // NB: this is public because it's used from GTK+ callbacks
 309     bool GenerateEvent(wxEventType type)
 310     {
 311         wxCalendarEvent event(this, GetDate(), type);
 312         return HandleWindowEvent(event);
 313     }
 314
 315 protected:
 316     // generate all the events for the selection change from dateOld to current
 317     // date: SEL_CHANGED, PAGE_CHANGED if necessary and also one of (deprecated)
 318     // YEAR/MONTH/DAY_CHANGED ones
 319     //
 320     // returns true if page changed event was generated, false if the new date
 321     // is still in the same month as before
 322     bool GenerateAllChangeEvents(const wxDateTime& dateOld);
 323
 324     // call SetHoliday() for all holidays in the current month
 325     //
 326     // should be called on month change, does nothing if wxCAL_SHOW_HOLIDAYS is
 327     // not set and returns false in this case, true if we do show them
 328     bool SetHolidayAttrs();
 329
 330     // called by SetHolidayAttrs() to forget the previously set holidays
 331     virtual void ResetHolidayAttrs() { }
 332
 333     // called by EnableHolidayDisplay()
 334     virtual void RefreshHolidays() { }
 335 };
 336
 337 // ----------------------------------------------------------------------------
 338 // wxCalendarCtrl
 339 // ----------------------------------------------------------------------------
 340
 341 #define wxCalendarNameStr "CalendarCtrl"
 342
 343 #ifndef __WXUNIVERSAL__
 344     #if defined(__WXGTK20__)
 345         #define wxHAS_NATIVE_CALENDARCTRL
 346         #include "wx/gtk/calctrl.h"
 347         #define wxCalendarCtrl wxGtkCalendarCtrl
 348     #elif defined(__WXMSW__)
 349         #define wxHAS_NATIVE_CALENDARCTRL
 350         #include "wx/msw/calctrl.h"
 351     #endif
 352 #endif // !__WXUNIVERSAL__
 353
 354 #ifndef wxHAS_NATIVE_CALENDARCTRL
 355     #include "wx/generic/calctrlg.h"
 356     #define wxCalendarCtrl wxGenericCalendarCtrl
 357 #endif
 358
 359 // ----------------------------------------------------------------------------
 360 // calendar event types and macros for handling them
 361 // ----------------------------------------------------------------------------
 362
 363 wxDECLARE_EXPORTED_EVENT( WXDLLIMPEXP_ADV, wxEVT_CALENDAR_SEL_CHANGED, wxCalendarEvent );
 364 wxDECLARE_EXPORTED_EVENT( WXDLLIMPEXP_ADV, wxEVT_CALENDAR_PAGE_CHANGED, wxCalendarEvent );
 365 wxDECLARE_EXPORTED_EVENT( WXDLLIMPEXP_ADV, wxEVT_CALENDAR_DOUBLECLICKED, wxCalendarEvent );
 366 wxDECLARE_EXPORTED_EVENT( WXDLLIMPEXP_ADV, wxEVT_CALENDAR_WEEKDAY_CLICKED, wxCalendarEvent );
 367 wxDECLARE_EXPORTED_EVENT( WXDLLIMPEXP_ADV, wxEVT_CALENDAR_WEEK_CLICKED, wxCalendarEvent );
 368
 369 // deprecated events
 370 wxDECLARE_EXPORTED_EVENT( WXDLLIMPEXP_ADV, wxEVT_CALENDAR_DAY_CHANGED, wxCalendarEvent );
 371 wxDECLARE_EXPORTED_EVENT( WXDLLIMPEXP_ADV, wxEVT_CALENDAR_MONTH_CHANGED, wxCalendarEvent );
 372 wxDECLARE_EXPORTED_EVENT( WXDLLIMPEXP_ADV, wxEVT_CALENDAR_YEAR_CHANGED, wxCalendarEvent );
 373
 374 typedef void (wxEvtHandler::*wxCalendarEventFunction)(wxCalendarEvent&);
 375
 376 #define wxCalendarEventHandler(func) \
 377     wxEVENT_HANDLER_CAST(wxCalendarEventFunction, func)
 378
 379 #define wx__DECLARE_CALEVT(evt, id, fn) \
 380     wx__DECLARE_EVT1(wxEVT_CALENDAR_ ## evt, id, wxCalendarEventHandler(fn))
 381
 382 #define EVT_CALENDAR(id, fn) wx__DECLARE_CALEVT(DOUBLECLICKED, id, fn)
 383 #define EVT_CALENDAR_SEL_CHANGED(id, fn) wx__DECLARE_CALEVT(SEL_CHANGED, id, fn)
 384 #define EVT_CALENDAR_PAGE_CHANGED(id, fn) wx__DECLARE_CALEVT(PAGE_CHANGED, id, fn)
 385 #define EVT_CALENDAR_WEEKDAY_CLICKED(id, fn) wx__DECLARE_CALEVT(WEEKDAY_CLICKED, id, fn)
 386 #define EVT_CALENDAR_WEEK_CLICKED(id, fn) wx__DECLARE_CALEVT(WEEK_CLICKED, id, fn)
 387
 388 // deprecated events
 389 #define EVT_CALENDAR_DAY(id, fn) wx__DECLARE_CALEVT(DAY_CHANGED, id, fn)
 390 #define EVT_CALENDAR_MONTH(id, fn) wx__DECLARE_CALEVT(MONTH_CHANGED, id, fn)
 391 #define EVT_CALENDAR_YEAR(id, fn) wx__DECLARE_CALEVT(YEAR_CHANGED, id, fn)
 392
 393 #endif // wxUSE_CALENDARCTRL
 394
 395 #endif // _WX_CALCTRL_H_
 396