wxWidgets/interface/calctrl.h

/////////////////////////////////////////////////////////////////////////////
// Name:        calctrl.h
// Purpose:     interface of wxCalendarEvent
// Author:      wxWidgets team
// RCS-ID:      $Id$
// Licence:     wxWindows license
/////////////////////////////////////////////////////////////////////////////

/**
    @class wxCalendarEvent
    @wxheader{calctrl.h}

    The wxCalendarEvent class is used together with
    wxCalendarCtrl.

    @library{wxadv}
    @category{events}

    @see wxCalendarCtrl
*/
class wxCalendarEvent : public wxDateEvent
{
public:
    /**
        Returns the week day on which the user clicked in
        @c EVT_CALENDAR_WEEKDAY_CLICKED handler. It doesn't make sense to call
        this function in other handlers.
    */
    wxDateTime::WeekDay GetWeekDay() const;

    /**
        Sets the week day carried by the event,
        normally only used by the library internally.
    */
    void SetWeekDay(wxDateTime::WeekDay day);
};



/**
    @class wxCalendarDateAttr
    @wxheader{calctrl.h}

    wxCalendarDateAttr is a custom attributes for a calendar date. The objects of
    this class are used with wxCalendarCtrl.

    @library{wxadv}
    @category{misc}

    @see wxCalendarCtrl
*/
class wxCalendarDateAttr
{
public:
    //@{
    /**
        The constructors.
    */
    wxCalendarDateAttr();
    wxCalendarDateAttr(const wxColour& colText,
                       const wxColour& colBack = wxNullColour,
                       const wxColour& colBorder = wxNullColour,
                       const wxFont& font = wxNullFont,
                       wxCalendarDateBorder border = wxCAL_BORDER_NONE);
    wxCalendarDateAttr(wxCalendarDateBorder border,
                       const wxColour& colBorder = wxNullColour);
    //@}

    /**
        Returns the background colour to use for the item with this attribute.
    */
    const wxColour GetBackgroundColour() const;

    /**
        Returns the border() to use for the item with this attribute.
    */
    wxCalendarDateBorder GetBorder() const;

    /**
        Returns the border colour to use for the item with this attribute.
    */
    const wxColour GetBorderColour() const;

    /**
        Returns the font to use for the item with this attribute.
    */
    const wxFont GetFont() const;

    /**
        Returns the text colour to use for the item with this attribute.
    */
    const wxColour GetTextColour() const;

    /**
        Returns @true if this attribute specifies a non-default text background
        colour.
    */
    bool HasBackgroundColour() const;

    /**
        Returns @true if this attribute specifies a non-default (i.e. any) border.
    */
    bool HasBorder() const;

    /**
        Returns @true if this attribute specifies a non-default border colour.
    */
    bool HasBorderColour() const;

    /**
        Returns @true if this attribute specifies a non-default font.
    */
    bool HasFont() const;

    /**
        Returns @true if this item has a non-default text foreground colour.
    */
    bool HasTextColour() const;

    /**
        Returns @true if this attribute specifies that this item should be
        displayed as a holiday.
    */
    bool IsHoliday() const;

    /**
        Sets the text background colour to use.
    */
    void SetBackgroundColour(const wxColour& colBack);

    /**
        Sets the @ref overview_wxcalendardateattr "border kind"
    */
    void SetBorder(wxCalendarDateBorder border);

    /**
        Sets the border colour to use.
    */
    void SetBorderColour(const wxColour& col);

    /**
        Sets the font to use.
    */
    void SetFont(const wxFont& font);

    /**
        Display the date with this attribute as a holiday.
    */
    void SetHoliday(bool holiday);

    /**
        Sets the text (foreground) colour to use.
    */
    void SetTextColour(const wxColour& colText);

    /**
        Used (internally) by generic wxCalendarCtrl::Mark()
    */
    static const wxCalendarDateAttr& GetMark();

    /**
       Set the attribute that will be used to Mark() days
       on generic wxCalendarCtrl
    */
    static void SetMark(wxCalendarDateAttr const& m);
};



/**
    @class wxCalendarCtrl
    @wxheader{calctrl.h}

    The calendar control allows the user to pick a date.  The user can move the
    current selection using the keyboard and select the date (generating
    @c EVT_CALENDAR event) by pressing @c Return or double clicking it.

    Generic calendar has advanced possibilities for the customization of its
    display, described below. If you want to use these possibilities on
    every platform, use wxGenericCalendarCtrl instead of wxCalendarCtrl.

    All global settings (such as colours and fonts used) can, of course,
    be changed. But also, the display style for each day in the month can
    be set independently using wxCalendarDateAttr class.

    An item without custom attributes is drawn with the default colours and
    font and without border, but setting custom attributes with
    wxCalendarCtrl::SetAttr allows to modify its appearance. Just
    create a custom attribute object and set it for the day you want to be
    displayed specially (note that the control will take ownership of
    the pointer, i.e. it will delete it itself).
    A day may be marked as being a holiday, even if it is not recognized as
    one by wxDateTime using wxCalendarDateAttr::SetHoliday method.

    As the attributes are specified for each day, they may change when the month
    is changed, so you will often want to update them in
    @c EVT_CALENDAR_PAGE_CHANGED event handler.

    @beginStyleTable
    @style{wxCAL_SUNDAY_FIRST}:
           Show Sunday as the first day in the week (only generic)
    @style{wxCAL_MONDAY_FIRST}:
           Show Monday as the first day in the week (only generic)
    @style{wxCAL_SHOW_HOLIDAYS}:
           Highlight holidays in the calendar (only generic)
    @style{wxCAL_NO_YEAR_CHANGE}:
           Disable the year changing (deprecated, only generic)
    @style{wxCAL_NO_MONTH_CHANGE}:
           Disable the month (and, implicitly, the year) changing
    @style{wxCAL_SHOW_SURROUNDING_WEEKS}:
           Show the neighbouring weeks in the previous and next months
           (only generic)
    @style{wxCAL_SEQUENTIAL_MONTH_SELECTION}:
           Use alternative, more compact, style for the month and year
           selection controls. (only generic)
    @endStyleTable

    @beginEventTable{wxCalendarEvent}
    @event{EVT_CALENDAR(id, func)}:
           A day was double clicked in the calendar.
    @event{EVT_CALENDAR_SEL_CHANGED(id, func)}:
           The selected date changed.
    @event{EVT_CALENDAR_PAGE_CHANGED(id, func)}:
           The selected month (and/or year) changed.
    @event{EVT_CALENDAR_WEEKDAY_CLICKED(id, func)}:
           User clicked on the week day header (only generic).
    @endEventTable

    @library{wxadv}
    @category{ctrl}
    @appearance{calendarctrl.png}

    @nativeimpl{wxgtk}

    @see @ref page_samples_calendar, wxCalendarDateAttr, wxCalendarEvent,
         wxDatePickerCtrl
*/
class wxCalendarCtrl : public wxControl
{
public:
    //@{
    /**
        Does the same as Create() method.
    */
    wxCalendarCtrl();
    wxCalendarCtrl(wxWindow* parent, wxWindowID id,
                   const wxDateTime& date = wxDefaultDateTime,
                   const wxPoint& pos = wxDefaultPosition,
                   const wxSize& size = wxDefaultSize,
                   long style = wxCAL_SHOW_HOLIDAYS,
                   const wxString& name = wxCalendarNameStr);
    //@}

    /**
        Destroys the control.
    */
    ~wxCalendarCtrl();

    /**
        Creates the control. See @ref wxWindow::ctor wxWindow for the meaning of
        the parameters and the control overview for the possible styles.
    */
    bool Create(wxWindow* parent, wxWindowID id,
                const wxDateTime& date = wxDefaultDateTime,
                const wxPoint& pos = wxDefaultPosition,
                const wxSize& size = wxDefaultSize,
                long style = wxCAL_SHOW_HOLIDAYS,
                const wxString& name = wxCalendarNameStr);

    /**
        This function should be used instead of changing @c wxCAL_SHOW_HOLIDAYS
        style bit directly. It enables or disables the special highlighting of the
        holidays.
    */
    void EnableHolidayDisplay(bool display = true);

    /**
        This function should be used instead of changing
        @c wxCAL_NO_MONTH_CHANGE style bit. It allows or disallows the user to
        change the month interactively. Note that if the month can not
        be changed, the year can not be changed neither.

        @return @true if the value of this option really changed or @false
                if it was already set to the requested value.
    */
    bool EnableMonthChange(bool enable = true);

    /**
        @deprecated

        This function should be used instead of changing @c wxCAL_NO_YEAR_CHANGE
        style bit directly. It allows or disallows the user to change the year
        interactively. Only in generic wxCalendarCtrl.
    */
    void EnableYearChange(bool enable = true);

    /**
        Returns the attribute for the given date (should be in the range 1...31).
        The returned pointer may be @NULL. Only in generic wxCalendarCtrl.
    */
    wxCalendarDateAttr* GetAttr(size_t day) const;

    /**
        Gets the currently selected date.
    */
    const wxDateTime GetDate() const;

    /**
        Gets the background colour of the header part of the calendar window.

        @see SetHeaderColours()
    */
    const wxColour GetHeaderColourBg() const;

    /**
        Gets the foreground colour of the header part of the calendar window.
        Only in generic wxCalendarCtrl.

        @see SetHeaderColours()
    */
    const wxColour GetHeaderColourFg() const;

    /**
        Gets the background highlight colour. Only in generic wxCalendarCtrl.

        @see SetHighlightColours()
    */
    const wxColour GetHighlightColourBg() const;

    /**
        Gets the foreground highlight colour. Only in generic wxCalendarCtrl.

        @see SetHighlightColours()
    */
    const wxColour GetHighlightColourFg() const;

    /**
        Return the background colour currently used for holiday highlighting.
        Only in generic wxCalendarCtrl.

        @see SetHolidayColours()
    */
    const wxColour GetHolidayColourBg() const;

    /**
        Return the foreground colour currently used for holiday highlighting.
        Only in generic wxCalendarCtrl.

        @see SetHolidayColours()
    */
    const wxColour GetHolidayColourFg() const;

    /**
        Returns one of @c wxCAL_HITTEST_XXX
        constants() and fills either @a date or @a wd pointer with
        the corresponding value depending on the hit test code.
        Only in generic wxCalendarCtrl.
    */
    wxCalendarHitTestResult HitTest(const wxPoint& pos,
                                    wxDateTime* date = NULL,
                                    wxDateTime::WeekDay* wd = NULL);

    /**
        Clears any attributes associated with the given day (in the range
        1...31).
        Only in generic wxCalendarCtrl.
    */
    void ResetAttr(size_t day);

    /**
        Associates the attribute with the specified date (in the range 1...31).
        If the pointer is @NULL, the items attribute is cleared.
        Only in generic wxCalendarCtrl.
    */
    void SetAttr(size_t day, wxCalendarDateAttr* attr);

    /**
        Sets the current date.
    */
    void SetDate(const wxDateTime& date);

    /**
        Set the colours used for painting the weekdays at the top of the control.
        Only in generic wxCalendarCtrl.
    */
    void SetHeaderColours(const wxColour& colFg,
                          const wxColour& colBg);

    /**
        Set the colours to be used for highlighting the currently selected date.
        Only in generic wxCalendarCtrl.
    */
    void SetHighlightColours(const wxColour& colFg,
                             const wxColour& colBg);

    /**
        Marks the specified day as being a holiday in the current month.
    */
    void SetHoliday(size_t day);

    /**
        Sets the colours to be used for the holidays highlighting (only used if the
        window style includes @c wxCAL_SHOW_HOLIDAYS flag).
        Only in generic wxCalendarCtrl.
    */
    void SetHolidayColours(const wxColour& colFg,
                           const wxColour& colBg);

    /**
        Mark or unmark the day.
        This day of month will be marked in every month.
        In generic wxCalendarCtrl,
    */
    void Mark(size_t day, bool mark);
};