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calctrl.cpp
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2002-07-01
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///////////////////////////////////////////////////////////////////////////////
// Name: generic/calctrl.cpp
// Purpose: implementation fo the generic wxCalendarCtrl
// Author: Vadim Zeitlin
// Modified by:
// Created: 29.12.99
// RCS-ID: $Id: calctrl.cpp,v 1.33 2002/06/27 23:02:07 RD Exp $
// Copyright: (c) 1999 Vadim Zeitlin <zeitlin@dptmaths.ens-cachan.fr>
// Licence: wxWindows license
///////////////////////////////////////////////////////////////////////////////
// ============================================================================
// declarations
// ============================================================================
// ----------------------------------------------------------------------------
// headers
// ----------------------------------------------------------------------------
#ifdef __GNUG__
#pragma implementation "calctrl.h"
#endif
// For compilers that support precompilation, includes "wx.h".
#include "wx/wxprec.h"
#ifdef __BORLANDC__
#pragma hdrstop
#endif
#ifndef WX_PRECOMP
#include "wx/dcclient.h"
#include "wx/settings.h"
#include "wx/brush.h"
#include "wx/combobox.h"
#include "wx/stattext.h"
#include "wx/textctrl.h"
#endif //WX_PRECOMP
#if wxUSE_CALENDARCTRL
#include "wx/spinctrl.h"
#include "wx/calctrl.h"
#define DEBUG_PAINT 0
// ----------------------------------------------------------------------------
// private classes
// ----------------------------------------------------------------------------
class wxMonthComboBox : public wxComboBox
{
public:
wxMonthComboBox(wxCalendarCtrl *cal);
void OnMonthChange(wxCommandEvent& event) { m_cal->OnMonthChange(event); }
private:
wxCalendarCtrl *m_cal;
DECLARE_EVENT_TABLE()
};
class wxYearSpinCtrl : public wxSpinCtrl
{
public:
wxYearSpinCtrl(wxCalendarCtrl *cal);
void OnYearTextChange(wxCommandEvent& event) { m_cal->OnYearChange(event); }
void OnYearChange(wxSpinEvent& event) { m_cal->OnYearChange(event); }
private:
wxCalendarCtrl *m_cal;
DECLARE_EVENT_TABLE()
};
// ----------------------------------------------------------------------------
// wxWin macros
// ----------------------------------------------------------------------------
BEGIN_EVENT_TABLE(wxCalendarCtrl, wxControl)
EVT_PAINT(wxCalendarCtrl::OnPaint)
EVT_CHAR(wxCalendarCtrl::OnChar)
EVT_LEFT_DOWN(wxCalendarCtrl::OnClick)
EVT_LEFT_DCLICK(wxCalendarCtrl::OnDClick)
END_EVENT_TABLE()
BEGIN_EVENT_TABLE(wxMonthComboBox, wxComboBox)
EVT_COMBOBOX(-1, wxMonthComboBox::OnMonthChange)
END_EVENT_TABLE()
BEGIN_EVENT_TABLE(wxYearSpinCtrl, wxSpinCtrl)
EVT_TEXT(-1, wxYearSpinCtrl::OnYearTextChange)
EVT_SPINCTRL(-1, wxYearSpinCtrl::OnYearChange)
END_EVENT_TABLE()
IMPLEMENT_DYNAMIC_CLASS(wxCalendarCtrl, wxControl)
IMPLEMENT_DYNAMIC_CLASS(wxCalendarEvent, wxCommandEvent)
// ----------------------------------------------------------------------------
// events
// ----------------------------------------------------------------------------
DEFINE_EVENT_TYPE(wxEVT_CALENDAR_SEL_CHANGED)
DEFINE_EVENT_TYPE(wxEVT_CALENDAR_DAY_CHANGED)
DEFINE_EVENT_TYPE(wxEVT_CALENDAR_MONTH_CHANGED)
DEFINE_EVENT_TYPE(wxEVT_CALENDAR_YEAR_CHANGED)
DEFINE_EVENT_TYPE(wxEVT_CALENDAR_DOUBLECLICKED)
DEFINE_EVENT_TYPE(wxEVT_CALENDAR_WEEKDAY_CLICKED)
// ============================================================================
// implementation
// ============================================================================
// ----------------------------------------------------------------------------
// wxMonthComboBox and wxYearSpinCtrl
// ----------------------------------------------------------------------------
wxMonthComboBox::wxMonthComboBox(wxCalendarCtrl *cal)
: wxComboBox(cal->GetParent(), -1,
wxEmptyString,
wxDefaultPosition,
wxDefaultSize,
0, NULL,
wxCB_READONLY | wxCLIP_SIBLINGS)
{
m_cal = cal;
wxDateTime::Month m;
for ( m = wxDateTime::Jan; m < wxDateTime::Inv_Month; wxNextMonth(m) )
{
Append(wxDateTime::GetMonthName(m));
}
SetSelection(m_cal->GetDate().GetMonth());
SetSize(-1, -1, -1, -1, wxSIZE_AUTO_WIDTH|wxSIZE_AUTO_HEIGHT);
}
wxYearSpinCtrl::wxYearSpinCtrl(wxCalendarCtrl *cal)
: wxSpinCtrl(cal->GetParent(), -1,
cal->GetDate().Format(_T("%Y")),
wxDefaultPosition,
wxDefaultSize,
wxSP_ARROW_KEYS | wxCLIP_SIBLINGS,
-4300, 10000, cal->GetDate().GetYear())
{
m_cal = cal;
}
// ----------------------------------------------------------------------------
// wxCalendarCtrl
// ----------------------------------------------------------------------------
void wxCalendarCtrl::Init()
{
m_comboMonth = NULL;
m_spinYear = NULL;
m_userChangedYear = FALSE;
m_widthCol =
m_heightRow = 0;
wxDateTime::WeekDay wd;
for ( wd = wxDateTime::Sun; wd < wxDateTime::Inv_WeekDay; wxNextWDay(wd) )
{
m_weekdays[wd] = wxDateTime::GetWeekDayName(wd, wxDateTime::Name_Abbr);
}
for ( size_t n = 0; n < WXSIZEOF(m_attrs); n++ )
{
m_attrs[n] = NULL;
}
m_colHighlightFg = wxSystemSettings::GetColour(wxSYS_COLOUR_HIGHLIGHTTEXT);
m_colHighlightBg = wxSystemSettings::GetColour(wxSYS_COLOUR_HIGHLIGHT);
m_colHolidayFg = *wxRED;
// don't set m_colHolidayBg - by default, same as our bg colour
m_colHeaderFg = *wxBLUE;
m_colHeaderBg = *wxLIGHT_GREY;
}
bool wxCalendarCtrl::Create(wxWindow *parent,
wxWindowID id,
const wxDateTime& date,
const wxPoint& pos,
const wxSize& size,
long style,
const wxString& name)
{
if ( !wxControl::Create(parent, id, pos, size,
style | wxCLIP_CHILDREN | wxWANTS_CHARS,
wxDefaultValidator, name) )
{
return FALSE;
}
// needed to get the arrow keys normally used for the dialog navigation
SetWindowStyle(style | wxWANTS_CHARS);
m_date = date.IsValid() ? date : wxDateTime::Today();
m_lowdate = wxDefaultDateTime;
m_highdate = wxDefaultDateTime;
if ( !HasFlag(wxCAL_SEQUENTIAL_MONTH_SELECTION) )
{
m_spinYear = new wxYearSpinCtrl(this);
m_staticYear = new wxStaticText(GetParent(), -1, m_date.Format(_T("%Y")),
wxDefaultPosition, wxDefaultSize,
wxALIGN_CENTRE);
m_comboMonth = new wxMonthComboBox(this);
m_staticMonth = new wxStaticText(GetParent(), -1, m_date.Format(_T("%B")),
wxDefaultPosition, wxDefaultSize,
wxALIGN_CENTRE);
}
ShowCurrentControls();
wxSize sizeReal;
if ( size.x == -1 || size.y == -1 )
{
sizeReal = DoGetBestSize();
if ( size.x != -1 )
sizeReal.x = size.x;
if ( size.y != -1 )
sizeReal.y = size.y;
}
else
{
sizeReal = size;
}
// we need to set the position as well because the main control position
// is not the same as the one specified in pos if we have the controls
// above it
SetSize(pos.x, pos.y, sizeReal.x, sizeReal.y);
SetBackgroundColour(*wxWHITE);
SetFont(*wxSWISS_FONT);
SetHolidayAttrs();
return TRUE;
}
wxCalendarCtrl::~wxCalendarCtrl()
{
for ( size_t n = 0; n < WXSIZEOF(m_attrs); n++ )
{
delete m_attrs[n];
}
}
// ----------------------------------------------------------------------------
// forward wxWin functions to subcontrols
// ----------------------------------------------------------------------------
bool wxCalendarCtrl::Destroy()
{
if ( m_staticYear )
m_staticYear->Destroy();
if ( m_spinYear )
m_spinYear->Destroy();
if ( m_comboMonth )
m_comboMonth->Destroy();
if ( m_staticMonth )
m_staticMonth->Destroy();
m_staticYear = NULL;
m_spinYear = NULL;
m_comboMonth = NULL;
m_staticMonth = NULL;
return wxControl::Destroy();
}
bool wxCalendarCtrl::Show(bool show)
{
if ( !wxControl::Show(show) )
{
return FALSE;
}
if ( !(GetWindowStyle() & wxCAL_SEQUENTIAL_MONTH_SELECTION) )
{
if ( GetMonthControl() )
{
GetMonthControl()->Show(show);
GetYearControl()->Show(show);
}
}
return TRUE;
}
bool wxCalendarCtrl::Enable(bool enable)
{
if ( !wxControl::Enable(enable) )
{
return FALSE;
}
if ( !(GetWindowStyle() & wxCAL_SEQUENTIAL_MONTH_SELECTION) )
{
GetMonthControl()->Enable(enable);
GetYearControl()->Enable(enable);
}
return TRUE;
}
// ----------------------------------------------------------------------------
// enable/disable month/year controls
// ----------------------------------------------------------------------------
void wxCalendarCtrl::ShowCurrentControls()
{
if ( !HasFlag(wxCAL_SEQUENTIAL_MONTH_SELECTION) )
{
if ( AllowMonthChange() )
{
m_comboMonth->Show();
m_staticMonth->Hide();
if ( AllowYearChange() )
{
m_spinYear->Show();
m_staticYear->Hide();
// skip the rest
return;
}
}
else
{
m_comboMonth->Hide();
m_staticMonth->Show();
}
// year change not allowed here
m_spinYear->Hide();
m_staticYear->Show();
}
}
wxControl *wxCalendarCtrl::GetMonthControl() const
{
return AllowMonthChange() ? (wxControl *)m_comboMonth : (wxControl *)m_staticMonth;
}
wxControl *wxCalendarCtrl::GetYearControl() const
{
return AllowYearChange() ? (wxControl *)m_spinYear : (wxControl *)m_staticYear;
}
void wxCalendarCtrl::EnableYearChange(bool enable)
{
if ( enable != AllowYearChange() )
{
long style = GetWindowStyle();
if ( enable )
style &= ~wxCAL_NO_YEAR_CHANGE;
else
style |= wxCAL_NO_YEAR_CHANGE;
SetWindowStyle(style);
ShowCurrentControls();
if ( GetWindowStyle() & wxCAL_SEQUENTIAL_MONTH_SELECTION )
{
Refresh();
}
}
}
void wxCalendarCtrl::EnableMonthChange(bool enable)
{
if ( enable != AllowMonthChange() )
{
long style = GetWindowStyle();
if ( enable )
style &= ~wxCAL_NO_MONTH_CHANGE;
else
style |= wxCAL_NO_MONTH_CHANGE;
SetWindowStyle(style);
ShowCurrentControls();
if ( GetWindowStyle() & wxCAL_SEQUENTIAL_MONTH_SELECTION )
{
Refresh();
}
}
}
// ----------------------------------------------------------------------------
// changing date
// ----------------------------------------------------------------------------
bool wxCalendarCtrl::SetDate(const wxDateTime& date)
{
bool retval = TRUE;
bool sameMonth = m_date.GetMonth() == date.GetMonth(),
sameYear = m_date.GetYear() == date.GetYear();
if ( IsDateInRange(date) )
{
if ( sameMonth && sameYear )
{
// just change the day
ChangeDay(date);
}
else
{
if ( AllowMonthChange() && (AllowYearChange() || sameYear) )
{
// change everything
m_date = date;
if ( !(GetWindowStyle() & wxCAL_SEQUENTIAL_MONTH_SELECTION) )
{
// update the controls
m_comboMonth->SetSelection(m_date.GetMonth());
if ( AllowYearChange() )
{
if ( !m_userChangedYear )
m_spinYear->SetValue(m_date.Format(_T("%Y")));
else // don't overwrite what the user typed in
m_userChangedYear = FALSE;
}
}
// as the month changed, holidays did too
SetHolidayAttrs();
// update the calendar
Refresh();
}
else
{
// forbidden
retval = FALSE;
}
}
}
return retval;
}
void wxCalendarCtrl::ChangeDay(const wxDateTime& date)
{
if ( m_date != date )
{
// we need to refresh the row containing the old date and the one
// containing the new one
wxDateTime dateOld = m_date;
m_date = date;
RefreshDate(dateOld);
// if the date is in the same row, it was already drawn correctly
if ( GetWeek(m_date) != GetWeek(dateOld) )
{
RefreshDate(m_date);
}
}
}
void wxCalendarCtrl::SetDateAndNotify(const wxDateTime& date)
{
wxDateTime::Tm tm1 = m_date.GetTm(),
tm2 = date.GetTm();
wxEventType type;
if ( tm1.year != tm2.year )
type = wxEVT_CALENDAR_YEAR_CHANGED;
else if ( tm1.mon != tm2.mon )
type = wxEVT_CALENDAR_MONTH_CHANGED;
else if ( tm1.mday != tm2.mday )
type = wxEVT_CALENDAR_DAY_CHANGED;
else
return;
if ( SetDate(date) )
{
GenerateEvents(type, wxEVT_CALENDAR_SEL_CHANGED);
}
}
// ----------------------------------------------------------------------------
// date range
// ----------------------------------------------------------------------------
bool wxCalendarCtrl::SetLowerDateLimit(const wxDateTime& date /* = wxDefaultDateTime */)
{
bool retval = TRUE;
if ( !(date.IsValid()) || ( ( m_highdate.IsValid() ) ? ( date <= m_highdate ) : TRUE ) )
{
m_lowdate = date;
}
else
{
retval = FALSE;
}
return retval;
}
bool wxCalendarCtrl::SetUpperDateLimit(const wxDateTime& date /* = wxDefaultDateTime */)
{
bool retval = TRUE;
if ( !(date.IsValid()) || ( ( m_lowdate.IsValid() ) ? ( date >= m_lowdate ) : TRUE ) )
{
m_highdate = date;
}
else
{
retval = FALSE;
}
return retval;
}
bool wxCalendarCtrl::SetDateRange(const wxDateTime& lowerdate /* = wxDefaultDateTime */, const wxDateTime& upperdate /* = wxDefaultDateTime */)
{
bool retval = TRUE;
if (
( !( lowerdate.IsValid() ) || ( ( upperdate.IsValid() ) ? ( lowerdate <= upperdate ) : TRUE ) ) &&
( !( upperdate.IsValid() ) || ( ( lowerdate.IsValid() ) ? ( upperdate >= lowerdate ) : TRUE ) ) )
{
m_lowdate = lowerdate;
m_highdate = upperdate;
}
else
{
retval = FALSE;
}
return retval;
}
// ----------------------------------------------------------------------------
// date helpers
// ----------------------------------------------------------------------------
wxDateTime wxCalendarCtrl::GetStartDate() const
{
wxDateTime::Tm tm = m_date.GetTm();
wxDateTime date = wxDateTime(1, tm.mon, tm.year);
// rewind back
date.SetToPrevWeekDay(GetWindowStyle() & wxCAL_MONDAY_FIRST
? wxDateTime::Mon : wxDateTime::Sun);
if ( GetWindowStyle() & wxCAL_SHOW_SURROUNDING_WEEKS )
{
// We want to offset the calendar if we start on the first..
if ( date.GetDay() == 1 )
{
date -= wxDateSpan::Week();
}
}
return date;
}
bool wxCalendarCtrl::IsDateShown(const wxDateTime& date) const
{
if ( !(GetWindowStyle() & wxCAL_SHOW_SURROUNDING_WEEKS) )
{
return date.GetMonth() == m_date.GetMonth();
}
else
{
return TRUE;
}
}
bool wxCalendarCtrl::IsDateInRange(const wxDateTime& date) const
{
bool retval = TRUE;
// Check if the given date is in the range specified
retval = ( ( ( m_lowdate.IsValid() ) ? ( date >= m_lowdate ) : TRUE )
&& ( ( m_highdate.IsValid() ) ? ( date <= m_highdate ) : TRUE ) );
return retval;
}
bool wxCalendarCtrl::ChangeYear(wxDateTime* target) const
{
bool retval = FALSE;
if ( !(IsDateInRange(*target)) )
{
if ( target->GetYear() < m_date.GetYear() )
{
if ( target->GetYear() >= GetLowerDateLimit().GetYear() )
{
*target = GetLowerDateLimit();
retval = TRUE;
}
else
{
*target = m_date;
}
}
else
{
if ( target->GetYear() <= GetUpperDateLimit().GetYear() )
{
*target = GetUpperDateLimit();
retval = TRUE;
}
else
{
*target = m_date;
}
}
}
else
{
retval = TRUE;
}
return retval;
}
bool wxCalendarCtrl::ChangeMonth(wxDateTime* target) const
{
bool retval = TRUE;
if ( !(IsDateInRange(*target)) )
{
retval = FALSE;
if ( target->GetMonth() < m_date.GetMonth() )
{
*target = GetLowerDateLimit();
}
else
{
*target = GetUpperDateLimit();
}
}
return retval;
}
size_t wxCalendarCtrl::GetWeek(const wxDateTime& date) const
{
size_t retval = date.GetWeekOfMonth(GetWindowStyle() & wxCAL_MONDAY_FIRST
? wxDateTime::Monday_First
: wxDateTime::Sunday_First);
if ( (GetWindowStyle() & wxCAL_SHOW_SURROUNDING_WEEKS) )
{
// we need to offset an extra week if we "start" on the 1st of the month
wxDateTime::Tm tm = date.GetTm();
wxDateTime datetest = wxDateTime(1, tm.mon, tm.year);
// rewind back
datetest.SetToPrevWeekDay(GetWindowStyle() & wxCAL_MONDAY_FIRST
? wxDateTime::Mon : wxDateTime::Sun);
if ( datetest.GetDay() == 1 )
{
retval += 1;
}
}
return retval;
}
// ----------------------------------------------------------------------------
// size management
// ----------------------------------------------------------------------------
// this is a composite control and it must arrange its parts each time its
// size or position changes: the combobox and spinctrl are along the top of
// the available area and the calendar takes up therest of the space
// the static controls are supposed to be always smaller than combo/spin so we
// always use the latter for size calculations and position the static to take
// the same space
// the constants used for the layout
#define VERT_MARGIN 5 // distance between combo and calendar
#ifdef __WXMAC__
#define HORZ_MARGIN 5 // spin
#else
#define HORZ_MARGIN 15 // spin
#endif
wxSize wxCalendarCtrl::DoGetBestSize() const
{
// calc the size of the calendar
((wxCalendarCtrl *)this)->RecalcGeometry(); // const_cast
wxCoord width = 7*m_widthCol,
height = 7*m_heightRow + m_rowOffset + VERT_MARGIN;
if ( !HasFlag(wxCAL_SEQUENTIAL_MONTH_SELECTION) )
{
// the combobox doesn't report its height correctly (it returns the
// height including the drop down list) so don't use it
height += m_spinYear->GetBestSize().y;
}
if ( !HasFlag(wxBORDER_NONE) )
{
// the border would clip the last line otherwise
height += 6;
width += 4;
}
return wxSize(width, height);
}
void wxCalendarCtrl::DoSetSize(int x, int y,
int width, int height,
int sizeFlags)
{
wxControl::DoSetSize(x, y, width, height, sizeFlags);
}
void wxCalendarCtrl::DoMoveWindow(int x, int y, int width, int height)
{
int yDiff;
if ( !HasFlag(wxCAL_SEQUENTIAL_MONTH_SELECTION) )
{
wxSize sizeCombo = m_comboMonth->GetSize();
wxSize sizeStatic = m_staticMonth->GetSize();
int dy = (sizeCombo.y - sizeStatic.y) / 2;
m_comboMonth->Move(x, y);
m_staticMonth->SetSize(x, y + dy, sizeCombo.x, sizeStatic.y);
int xDiff = sizeCombo.x + HORZ_MARGIN;
m_spinYear->SetSize(x + xDiff, y, width - xDiff, sizeCombo.y);
m_staticYear->SetSize(x + xDiff, y + dy, width - xDiff, sizeStatic.y);
wxSize sizeSpin = m_spinYear->GetSize();
yDiff = wxMax(sizeSpin.y, sizeCombo.y) + VERT_MARGIN;
}
else // no controls on the top
{
yDiff = 0;
}
wxControl::DoMoveWindow(x, y + yDiff, width, height - yDiff);
}
void wxCalendarCtrl::DoGetPosition(int *x, int *y) const
{
wxControl::DoGetPosition(x, y);
if ( !(GetWindowStyle() & wxCAL_SEQUENTIAL_MONTH_SELECTION) )
{
// our real top corner is not in this position
if ( y )
{
*y -= GetMonthControl()->GetSize().y + VERT_MARGIN;
}
}
}
void wxCalendarCtrl::DoGetSize(int *width, int *height) const
{
wxControl::DoGetSize(width, height);
if ( !(GetWindowStyle() & wxCAL_SEQUENTIAL_MONTH_SELECTION) )
{
// our real height is bigger
if ( height && GetMonthControl())
{
*height += GetMonthControl()->GetSize().y + VERT_MARGIN;
}
}
}
void wxCalendarCtrl::RecalcGeometry()
{
if ( m_widthCol != 0 )
return;
wxClientDC dc(this);
dc.SetFont(m_font);
// determine the column width (we assume that the weekday names are always
// wider (in any language) than the numbers)
m_widthCol = 0;
wxDateTime::WeekDay wd;
for ( wd = wxDateTime::Sun; wd < wxDateTime::Inv_WeekDay; wxNextWDay(wd) )
{
wxCoord width;
dc.GetTextExtent(m_weekdays[wd], &width, &m_heightRow);
if ( width > m_widthCol )
{
m_widthCol = width;
}
}
// leave some margins
m_widthCol += 2;
m_heightRow += 2;
m_rowOffset = (GetWindowStyle() & wxCAL_SEQUENTIAL_MONTH_SELECTION) ? m_heightRow : 0; // conditional in relation to style
}
// ----------------------------------------------------------------------------
// drawing
// ----------------------------------------------------------------------------
void wxCalendarCtrl::OnPaint(wxPaintEvent& WXUNUSED(event))
{
wxPaintDC dc(this);
dc.SetFont(m_font);
RecalcGeometry();
#if DEBUG_PAINT
wxLogDebug("--- starting to paint, selection: %s, week %u\n",
m_date.Format("%a %d-%m-%Y %H:%M:%S").c_str(),
GetWeek(m_date));
#endif
wxCoord y = 0;
if ( HasFlag(wxCAL_SEQUENTIAL_MONTH_SELECTION) )
{
// draw the sequential month-selector
dc.SetBackgroundMode(wxTRANSPARENT);
dc.SetTextForeground(*wxBLACK);
dc.SetBrush(wxBrush(m_colHeaderBg, wxSOLID));
dc.SetPen(wxPen(m_colHeaderBg, 1, wxSOLID));
dc.DrawRectangle(0, y, 7*m_widthCol, m_heightRow);
// Get extent of month-name + year
wxCoord monthw, monthh;
wxString headertext = m_date.Format(wxT("%B %Y"));
dc.GetTextExtent(headertext, &monthw, &monthh);
// draw month-name centered above weekdays
wxCoord monthx = ((m_widthCol * 7) - monthw) / 2;
wxCoord monthy = ((m_heightRow - monthh) / 2) + y;
dc.DrawText(headertext, monthx, monthy);
// calculate the "month-arrows"
wxPoint leftarrow[3];
wxPoint rightarrow[3];
int arrowheight = monthh / 2;
leftarrow[0] = wxPoint(0, arrowheight / 2);
leftarrow[1] = wxPoint(arrowheight / 2, 0);
leftarrow[2] = wxPoint(arrowheight / 2, arrowheight - 1);
rightarrow[0] = wxPoint(0, 0);
rightarrow[1] = wxPoint(arrowheight / 2, arrowheight / 2);
rightarrow[2] = wxPoint(0, arrowheight - 1);
// draw the "month-arrows"
wxCoord arrowy = (m_heightRow - arrowheight) / 2;
wxCoord larrowx = (m_widthCol - (arrowheight / 2)) / 2;
wxCoord rarrowx = ((m_widthCol - (arrowheight / 2)) / 2) + m_widthCol*6;
m_leftArrowRect = wxRect(0, 0, 0, 0);
m_rightArrowRect = wxRect(0, 0, 0, 0);
if ( AllowMonthChange() )
{
wxDateTime ldpm = wxDateTime(1,m_date.GetMonth(), m_date.GetYear()) - wxDateSpan::Day(); // last day prev month
// Check if range permits change
if ( IsDateInRange(ldpm) && ( ( ldpm.GetYear() == m_date.GetYear() ) ? TRUE : AllowYearChange() ) )
{
m_leftArrowRect = wxRect(larrowx - 3, arrowy - 3, (arrowheight / 2) + 8, (arrowheight + 6));
dc.SetBrush(wxBrush(*wxBLACK, wxSOLID));
dc.SetPen(wxPen(*wxBLACK, 1, wxSOLID));
dc.DrawPolygon(3, leftarrow, larrowx , arrowy, wxWINDING_RULE);
dc.SetBrush(*wxTRANSPARENT_BRUSH);
dc.DrawRectangle(m_leftArrowRect);
}
wxDateTime fdnm = wxDateTime(1,m_date.GetMonth(), m_date.GetYear()) + wxDateSpan::Month(); // first day next month
if ( IsDateInRange(fdnm) && ( ( fdnm.GetYear() == m_date.GetYear() ) ? TRUE : AllowYearChange() ) )
{
m_rightArrowRect = wxRect(rarrowx - 4, arrowy - 3, (arrowheight / 2) + 8, (arrowheight + 6));
dc.SetBrush(wxBrush(*wxBLACK, wxSOLID));
dc.SetPen(wxPen(*wxBLACK, 1, wxSOLID));
dc.DrawPolygon(3, rightarrow, rarrowx , arrowy, wxWINDING_RULE);
dc.SetBrush(*wxTRANSPARENT_BRUSH);
dc.DrawRectangle(m_rightArrowRect);
}
}
y += m_heightRow;
}
// first draw the week days
if ( IsExposed(0, y, 7*m_widthCol, m_heightRow) )
{
#if DEBUG_PAINT
wxLogDebug("painting the header");
#endif
dc.SetBackgroundMode(wxTRANSPARENT);
dc.SetTextForeground(m_colHeaderFg);
dc.SetBrush(wxBrush(m_colHeaderBg, wxSOLID));
dc.SetPen(wxPen(m_colHeaderBg, 1, wxSOLID));
dc.DrawRectangle(0, y, GetClientSize().x, m_heightRow);
bool startOnMonday = (GetWindowStyle() & wxCAL_MONDAY_FIRST) != 0;
for ( size_t wd = 0; wd < 7; wd++ )
{
size_t n;
if ( startOnMonday )
n = wd == 6 ? 0 : wd + 1;
else
n = wd;
wxCoord dayw, dayh;
dc.GetTextExtent(m_weekdays[n], &dayw, &dayh);
dc.DrawText(m_weekdays[n], (wd*m_widthCol) + ((m_widthCol- dayw) / 2), y); // center the day-name
}
}
// then the calendar itself
dc.SetTextForeground(*wxBLACK);
//dc.SetFont(*wxNORMAL_FONT);
y += m_heightRow;
wxDateTime date = GetStartDate();
#if DEBUG_PAINT
wxLogDebug("starting calendar from %s\n",
date.Format("%a %d-%m-%Y %H:%M:%S").c_str());
#endif
dc.SetBackgroundMode(wxSOLID);
for ( size_t nWeek = 1; nWeek <= 6; nWeek++, y += m_heightRow )
{
// if the update region doesn't intersect this row, don't paint it
if ( !IsExposed(0, y, 7*m_widthCol, m_heightRow - 1) )
{
date += wxDateSpan::Week();
continue;
}
#if DEBUG_PAINT
wxLogDebug("painting week %d at y = %d\n", nWeek, y);
#endif
for ( size_t wd = 0; wd < 7; wd++ )
{
if ( IsDateShown(date) )
{
// don't use wxDate::Format() which prepends 0s
unsigned int day = date.GetDay();
wxString dayStr = wxString::Format(_T("%u"), day);
wxCoord width;
dc.GetTextExtent(dayStr, &width, (wxCoord *)NULL);
bool changedColours = FALSE,
changedFont = FALSE;
bool isSel = FALSE;
wxCalendarDateAttr *attr = NULL;
if ( date.GetMonth() != m_date.GetMonth() || !IsDateInRange(date) )
{
// surrounding week or out-of-range
// draw "disabled"
dc.SetTextForeground(*wxLIGHT_GREY);
changedColours = TRUE;
}
else
{
isSel = date.IsSameDate(m_date);
attr = m_attrs[day - 1];
if ( isSel )
{
dc.SetTextForeground(m_colHighlightFg);
dc.SetTextBackground(m_colHighlightBg);
changedColours = TRUE;
}
else if ( attr )
{
wxColour colFg, colBg;
if ( attr->IsHoliday() )
{
colFg = m_colHolidayFg;
colBg = m_colHolidayBg;
}
else
{
colFg = attr->GetTextColour();
colBg = attr->GetBackgroundColour();
}
if ( colFg.Ok() )
{
dc.SetTextForeground(colFg);
changedColours = TRUE;
}
if ( colBg.Ok() )
{
dc.SetTextBackground(colBg);
changedColours = TRUE;
}
if ( attr->HasFont() )
{
dc.SetFont(attr->GetFont());
changedFont = TRUE;
}
}
}
wxCoord x = wd*m_widthCol + (m_widthCol - width) / 2;
dc.DrawText(dayStr, x, y + 1);
if ( !isSel && attr && attr->HasBorder() )
{
wxColour colBorder;
if ( attr->HasBorderColour() )
{
colBorder = attr->GetBorderColour();
}
else
{
colBorder = m_foregroundColour;
}
wxPen pen(colBorder, 1, wxSOLID);
dc.SetPen(pen);
dc.SetBrush(*wxTRANSPARENT_BRUSH);
switch ( attr->GetBorder() )
{
case wxCAL_BORDER_SQUARE:
dc.DrawRectangle(x - 2, y,
width + 4, m_heightRow);
break;
case wxCAL_BORDER_ROUND:
dc.DrawEllipse(x - 2, y,
width + 4, m_heightRow);
break;
default:
wxFAIL_MSG(_T("unknown border type"));
}
}
if ( changedColours )
{
dc.SetTextForeground(m_foregroundColour);
dc.SetTextBackground(m_backgroundColour);
}
if ( changedFont )
{
dc.SetFont(m_font);
}
}
//else: just don't draw it
date += wxDateSpan::Day();
}
}
// Greying out out-of-range background
bool showSurrounding = (GetWindowStyle() & wxCAL_SHOW_SURROUNDING_WEEKS) != 0;
date = ( showSurrounding ) ? GetStartDate() : wxDateTime(1, m_date.GetMonth(), m_date.GetYear());
if ( !IsDateInRange(date) )
{
wxDateTime firstOOR = GetLowerDateLimit() - wxDateSpan::Day(); // first out-of-range
wxBrush oorbrush = *wxLIGHT_GREY_BRUSH;
oorbrush.SetStyle(wxFDIAGONAL_HATCH);
HighlightRange(&dc, date, firstOOR, wxTRANSPARENT_PEN, &oorbrush);
}
date = ( showSurrounding ) ? GetStartDate() + wxDateSpan::Weeks(6) - wxDateSpan::Day() : wxDateTime().SetToLastMonthDay(m_date.GetMonth(), m_date.GetYear());
if ( !IsDateInRange(date) )
{
wxDateTime firstOOR = GetUpperDateLimit() + wxDateSpan::Day(); // first out-of-range
wxBrush oorbrush = *wxLIGHT_GREY_BRUSH;
oorbrush.SetStyle(wxFDIAGONAL_HATCH);
HighlightRange(&dc, firstOOR, date, wxTRANSPARENT_PEN, &oorbrush);
}
#if DEBUG_PAINT
wxLogDebug("+++ finished painting");
#endif
}
void wxCalendarCtrl::RefreshDate(const wxDateTime& date)
{
RecalcGeometry();
wxRect rect;
// always refresh the whole row at once because our OnPaint() will draw
// the whole row anyhow - and this allows the small optimisation in
// OnClick() below to work
rect.x = 0;
rect.y = (m_heightRow * GetWeek(date)) + m_rowOffset;
rect.width = 7*m_widthCol;
rect.height = m_heightRow;
#ifdef __WXMSW__
// VZ: for some reason, the selected date seems to occupy more space under
// MSW - this is probably some bug in the font size calculations, but I
// don't know where exactly. This fix is ugly and leads to more
// refreshes than really needed, but without it the selected days
// leaves even more ugly underscores on screen.
rect.Inflate(0, 1);
#endif // MSW
#if DEBUG_PAINT
wxLogDebug("*** refreshing week %d at (%d, %d)-(%d, %d)\n",
GetWeek(date),
rect.x, rect.y,
rect.x + rect.width, rect.y + rect.height);
#endif
Refresh(TRUE, &rect);
}
void wxCalendarCtrl::HighlightRange(wxPaintDC* pDC, const wxDateTime& fromdate, const wxDateTime& todate, wxPen* pPen, wxBrush* pBrush)
{
// Highlights the given range using pen and brush
// Does nothing if todate < fromdate
#if DEBUG_PAINT
wxLogDebug("+++ HighlightRange: (%s) - (%s) +++", fromdate.Format("%d %m %Y"), todate.Format("%d %m %Y"));
#endif
if ( todate >= fromdate )
{
// do stuff
// date-coordinates
int fd, fw;
int td, tw;
// implicit: both dates must be currently shown - checked by GetDateCoord
if ( GetDateCoord(fromdate, &fd, &fw) && GetDateCoord(todate, &td, &tw) )
{
#if DEBUG_PAINT
wxLogDebug("Highlight range: (%i, %i) - (%i, %i)", fd, fw, td, tw);
#endif
if ( ( (tw - fw) == 1 ) && ( td < fd ) )
{
// special case: interval 7 days or less not in same week
// split in two seperate intervals
wxDateTime tfd = fromdate + wxDateSpan::Days(7-fd);
wxDateTime ftd = tfd + wxDateSpan::Day();
#if DEBUG_PAINT
wxLogDebug("Highlight: Seperate segments");
#endif
// draw seperately
HighlightRange(pDC, fromdate, tfd, pPen, pBrush);
HighlightRange(pDC, ftd, todate, pPen, pBrush);
}
else
{
int numpoints;
wxPoint corners[8]; // potentially 8 corners in polygon
if ( fw == tw )
{
// simple case: same week
numpoints = 4;
corners[0] = wxPoint((fd - 1) * m_widthCol, (fw * m_heightRow) + m_rowOffset);
corners[1] = wxPoint((fd - 1) * m_widthCol, ((fw + 1 ) * m_heightRow) + m_rowOffset);
corners[2] = wxPoint(td * m_widthCol, ((tw + 1) * m_heightRow) + m_rowOffset);
corners[3] = wxPoint(td * m_widthCol, (tw * m_heightRow) + m_rowOffset);
}
else
{
int cidx = 0;
// "complex" polygon
corners[cidx] = wxPoint((fd - 1) * m_widthCol, (fw * m_heightRow) + m_rowOffset); cidx++;
if ( fd > 1 )
{
corners[cidx] = wxPoint((fd - 1) * m_widthCol, ((fw + 1) * m_heightRow) + m_rowOffset); cidx++;
corners[cidx] = wxPoint(0, ((fw + 1) * m_heightRow) + m_rowOffset); cidx++;
}
corners[cidx] = wxPoint(0, ((tw + 1) * m_heightRow) + m_rowOffset); cidx++;
corners[cidx] = wxPoint(td * m_widthCol, ((tw + 1) * m_heightRow) + m_rowOffset); cidx++;
if ( td < 7 )
{
corners[cidx] = wxPoint(td * m_widthCol, (tw * m_heightRow) + m_rowOffset); cidx++;
corners[cidx] = wxPoint(7 * m_widthCol, (tw * m_heightRow) + m_rowOffset); cidx++;
}
corners[cidx] = wxPoint(7 * m_widthCol, (fw * m_heightRow) + m_rowOffset); cidx++;
numpoints = cidx;
}
// draw the polygon
pDC->SetBrush(*pBrush);
pDC->SetPen(*pPen);
pDC->DrawPolygon(numpoints, corners);
}
}
}
// else do nothing
#if DEBUG_PAINT
wxLogDebug("--- HighlightRange ---");
#endif
}
bool wxCalendarCtrl::GetDateCoord(const wxDateTime& date, int *day, int *week) const
{
bool retval = TRUE;
#if DEBUG_PAINT
wxLogDebug("+++ GetDateCoord: (%s) +++", date.Format("%d %m %Y"));
#endif
if ( IsDateShown(date) )
{
bool startOnMonday = ( GetWindowStyle() & wxCAL_MONDAY_FIRST ) != 0;
// Find day
*day = date.GetWeekDay();
if ( *day == 0 ) // sunday
{
*day = ( startOnMonday ) ? 7 : 1;
}
else
{
day += ( startOnMonday ) ? 0 : 1;
}
int targetmonth = date.GetMonth() + (12 * date.GetYear());
int thismonth = m_date.GetMonth() + (12 * m_date.GetYear());
// Find week
if ( targetmonth == thismonth )
{
*week = GetWeek(date);
}
else
{
if ( targetmonth < thismonth )
{
*week = 1; // trivial
}
else // targetmonth > thismonth
{
wxDateTime ldcm;
int lastweek;
int lastday;
// get the datecoord of the last day in the month currently shown
#if DEBUG_PAINT
wxLogDebug(" +++ LDOM +++");
#endif
GetDateCoord(ldcm.SetToLastMonthDay(m_date.GetMonth(), m_date.GetYear()), &lastday, &lastweek);
#if DEBUG_PAINT
wxLogDebug(" --- LDOM ---");
#endif
wxTimeSpan span = date - ldcm;
int daysfromlast = span.GetDays();
#if DEBUG_PAINT
wxLogDebug("daysfromlast: %i", daysfromlast);
#endif
if ( daysfromlast + lastday > 7 ) // past week boundary
{
int wholeweeks = (daysfromlast / 7);
*week = wholeweeks + lastweek;
if ( (daysfromlast - (7 * wholeweeks) + lastday) > 7 )
{
*week += 1;
}
}
else
{
*week = lastweek;
}
}
}
}
else
{
*day = -1;
*week = -1;
retval = FALSE;
}
#if DEBUG_PAINT
wxLogDebug("--- GetDateCoord: (%s) = (%i, %i) ---", date.Format("%d %m %Y"), *day, *week);
#endif
return retval;
}
// ----------------------------------------------------------------------------
// mouse handling
// ----------------------------------------------------------------------------
void wxCalendarCtrl::OnDClick(wxMouseEvent& event)
{
if ( HitTest(event.GetPosition()) != wxCAL_HITTEST_DAY )
{
event.Skip();
}
else
{
GenerateEvent(wxEVT_CALENDAR_DOUBLECLICKED);
}
}
void wxCalendarCtrl::OnClick(wxMouseEvent& event)
{
wxDateTime date;
wxDateTime::WeekDay wday;
switch ( HitTest(event.GetPosition(), &date, &wday) )
{
case wxCAL_HITTEST_DAY:
if ( IsDateInRange(date) )
{
ChangeDay(date);
GenerateEvents(wxEVT_CALENDAR_DAY_CHANGED,
wxEVT_CALENDAR_SEL_CHANGED);
}
break;
case wxCAL_HITTEST_HEADER:
{
wxCalendarEvent event(this, wxEVT_CALENDAR_WEEKDAY_CLICKED);
event.m_wday = wday;
(void)GetEventHandler()->ProcessEvent(event);
}
break;
case wxCAL_HITTEST_DECMONTH:
case wxCAL_HITTEST_INCMONTH:
case wxCAL_HITTEST_SURROUNDING_WEEK:
SetDateAndNotify(date); // we probably only want to refresh the control. No notification.. (maybe as an option?)
break;
default:
wxFAIL_MSG(_T("unknown hittest code"));
// fall through
case wxCAL_HITTEST_NOWHERE:
event.Skip();
break;
}
}
wxCalendarHitTestResult wxCalendarCtrl::HitTest(const wxPoint& pos,
wxDateTime *date,
wxDateTime::WeekDay *wd)
{
RecalcGeometry();
wxCoord y = pos.y;
///////////////////////////////////////////////////////////////////////////////////////////////////////
if ( (GetWindowStyle() & wxCAL_SEQUENTIAL_MONTH_SELECTION) )
{
// Header: month
// we need to find out if the hit is on left arrow, on month or on right arrow
// left arrow?
if ( wxRegion(m_leftArrowRect).Contains(pos) == wxInRegion )
{
if ( date )
{
if ( IsDateInRange(m_date - wxDateSpan::Month()) )
{
*date = m_date - wxDateSpan::Month();
}
else
{
*date = GetLowerDateLimit();
}
}
return wxCAL_HITTEST_DECMONTH;
}
if ( wxRegion(m_rightArrowRect).Contains(pos) == wxInRegion )
{
if ( date )
{
if ( IsDateInRange(m_date + wxDateSpan::Month()) )
{
*date = m_date + wxDateSpan::Month();
}
else
{
*date = GetUpperDateLimit();
}
}
return wxCAL_HITTEST_INCMONTH;
}
}
///////////////////////////////////////////////////////////////////////////////////////////////////////
// Header: Days
int wday = pos.x / m_widthCol;
// if ( y < m_heightRow )
if ( y < (m_heightRow + m_rowOffset) )
{
if ( y > m_rowOffset )
{
if ( wd )
{
if ( GetWindowStyle() & wxCAL_MONDAY_FIRST )
{
wday = wday == 6 ? 0 : wday + 1;
}
*wd = (wxDateTime::WeekDay)wday;
}
return wxCAL_HITTEST_HEADER;
}
else
{
return wxCAL_HITTEST_NOWHERE;
}
}
// int week = (y - m_heightRow) / m_heightRow;
int week = (y - (m_heightRow + m_rowOffset)) / m_heightRow;
if ( week >= 6 || wday >= 7 )
{
return wxCAL_HITTEST_NOWHERE;
}
wxDateTime dt = GetStartDate() + wxDateSpan::Days(7*week + wday);
if ( IsDateShown(dt) )
{
if ( date )
*date = dt;
if ( dt.GetMonth() == m_date.GetMonth() )
{
return wxCAL_HITTEST_DAY;
}
else
{
return wxCAL_HITTEST_SURROUNDING_WEEK;
}
}
else
{
return wxCAL_HITTEST_NOWHERE;
}
}
// ----------------------------------------------------------------------------
// subcontrols events handling
// ----------------------------------------------------------------------------
void wxCalendarCtrl::OnMonthChange(wxCommandEvent& event)
{
wxDateTime::Tm tm = m_date.GetTm();
wxDateTime::Month mon = (wxDateTime::Month)event.GetInt();
if ( tm.mday > wxDateTime::GetNumberOfDays(mon, tm.year) )
{
tm.mday = wxDateTime::GetNumberOfDays(mon, tm.year);
}
wxDateTime target = wxDateTime(tm.mday, mon, tm.year);
ChangeMonth(&target);
SetDateAndNotify(target);
}
void wxCalendarCtrl::OnYearChange(wxCommandEvent& event)
{
int year = (int)event.GetInt();
if ( year == INT_MIN )
{
// invalid year in the spin control, ignore it
return;
}
// set the flag for SetDate(): otherwise it would overwrite the year
// typed in by the user
m_userChangedYear = TRUE;
wxDateTime::Tm tm = m_date.GetTm();
if ( tm.mday > wxDateTime::GetNumberOfDays(tm.mon, year) )
{
tm.mday = wxDateTime::GetNumberOfDays(tm.mon, year);
}
wxDateTime target = wxDateTime(tm.mday, tm.mon, year);
if ( ChangeYear(&target) )
{
SetDateAndNotify(target);
}
else
{
// In this case we don't want to change the date. That would put us
// inside the same year but a strange number of months forward/back..
m_spinYear->SetValue(target.GetYear());
}
}
// ----------------------------------------------------------------------------
// keyboard interface
// ----------------------------------------------------------------------------
void wxCalendarCtrl::OnChar(wxKeyEvent& event)
{
wxDateTime target;
switch ( event.KeyCode() )
{
case _T('+'):
case WXK_ADD:
target = m_date + wxDateSpan::Year();
if ( ChangeYear(&target) )
{
SetDateAndNotify(target);
}
break;
case _T('-'):
case WXK_SUBTRACT:
target = m_date - wxDateSpan::Year();
if ( ChangeYear(&target) )
{
SetDateAndNotify(target);
}
break;
case WXK_PRIOR:
target = m_date - wxDateSpan::Month();
ChangeMonth(&target);
SetDateAndNotify(target); // always
break;
case WXK_NEXT:
target = m_date + wxDateSpan::Month();
ChangeMonth(&target);
SetDateAndNotify(target); // always
break;
case WXK_RIGHT:
if ( event.ControlDown() )
{
target = wxDateTime(m_date).SetToNextWeekDay(
GetWindowStyle() & wxCAL_MONDAY_FIRST
? wxDateTime::Sun : wxDateTime::Sat);
if ( !IsDateInRange(target) )
{
target = GetUpperDateLimit();
}
SetDateAndNotify(target);
}
else
SetDateAndNotify(m_date + wxDateSpan::Day());
break;
case WXK_LEFT:
if ( event.ControlDown() )
{
target = wxDateTime(m_date).SetToPrevWeekDay(
GetWindowStyle() & wxCAL_MONDAY_FIRST
? wxDateTime::Mon : wxDateTime::Sun);
if ( !IsDateInRange(target) )
{
target = GetLowerDateLimit();
}
SetDateAndNotify(target);
}
else
SetDateAndNotify(m_date - wxDateSpan::Day());
break;
case WXK_UP:
SetDateAndNotify(m_date - wxDateSpan::Week());
break;
case WXK_DOWN:
SetDateAndNotify(m_date + wxDateSpan::Week());
break;
case WXK_HOME:
if ( event.ControlDown() )
SetDateAndNotify(wxDateTime::Today());
else
SetDateAndNotify(wxDateTime(1, m_date.GetMonth(), m_date.GetYear()));
break;
case WXK_END:
SetDateAndNotify(wxDateTime(m_date).SetToLastMonthDay());
break;
case WXK_RETURN:
GenerateEvent(wxEVT_CALENDAR_DOUBLECLICKED);
break;
default:
event.Skip();
}
}
// ----------------------------------------------------------------------------
// holidays handling
// ----------------------------------------------------------------------------
void wxCalendarCtrl::EnableHolidayDisplay(bool display)
{
long style = GetWindowStyle();
if ( display )
style |= wxCAL_SHOW_HOLIDAYS;
else
style &= ~wxCAL_SHOW_HOLIDAYS;
SetWindowStyle(style);
if ( display )
SetHolidayAttrs();
else
ResetHolidayAttrs();
Refresh();
}
void wxCalendarCtrl::SetHolidayAttrs()
{
if ( GetWindowStyle() & wxCAL_SHOW_HOLIDAYS )
{
ResetHolidayAttrs();
wxDateTime::Tm tm = m_date.GetTm();
wxDateTime dtStart(1, tm.mon, tm.year),
dtEnd = dtStart.GetLastMonthDay();
wxDateTimeArray hol;
wxDateTimeHolidayAuthority::GetHolidaysInRange(dtStart, dtEnd, hol);
size_t count = hol.GetCount();
for ( size_t n = 0; n < count; n++ )
{
SetHoliday(hol[n].GetDay());
}
}
}
void wxCalendarCtrl::SetHoliday(size_t day)
{
wxCHECK_RET( day > 0 && day < 32, _T("invalid day in SetHoliday") );
wxCalendarDateAttr *attr = GetAttr(day);
if ( !attr )
{
attr = new wxCalendarDateAttr;
}
attr->SetHoliday(TRUE);
// can't use SetAttr() because it would delete this pointer
m_attrs[day - 1] = attr;
}
void wxCalendarCtrl::ResetHolidayAttrs()
{
for ( size_t day = 0; day < 31; day++ )
{
if ( m_attrs[day] )
{
m_attrs[day]->SetHoliday(FALSE);
}
}
}
// ----------------------------------------------------------------------------
// wxCalendarEvent
// ----------------------------------------------------------------------------
void wxCalendarEvent::Init()
{
m_wday = wxDateTime::Inv_WeekDay;
}
wxCalendarEvent::wxCalendarEvent(wxCalendarCtrl *cal, wxEventType type)
: wxCommandEvent(type, cal->GetId())
{
m_date = cal->GetDate();
SetEventObject(cal);
}
#endif // wxUSE_CALENDARCTRL