CoolCalendar a perpetual calendar control






2.80/5 (6 votes)
Feb 15, 2001

135455

1820
An ownderdrawn perpetual calendar control
Background
During my career I have designed numerous user interfaces and widgets. I have yet to see a calendar that has a perpetual or rolling feature built in. By this I mean to change the month by selecting on the previous or next months days, rather that moving from the calendar interface to the month combobox. Well hopefully this calendar overcomes some of the shortfalls most calendar controls have on the market.
Features
- Spinner control (optional) to scroll 7 days at a time.
- Perpetual or rolling functionality allows user to click on previous and next month.
- Programmatically attach a note to day
- Fulfills UI guidelines
- Date select notification
Interface
COleDateTime GetDate() | Gets the currently selected date |
void ShowSpinner(BOOL bShow); | Shows or hides the month spinner |
BOOL SetDate(COleDateTime tm); | Sets the current date |
BOOL AddNote(COleDateTime& date, CString strNote, BOOL bReplace); | Attaches a note to a date |
void DeleteNote(COleDateTime& date); | Deletes a note from a date |
void ClearAllNotes(); | Removes all notes |
Implemention
Files:
- CalWnd.h & CalWnd.cpp (Main calendar functionality)
- CalBtn.h & CalBtn.cpp (Calendar button objects)
- Popup.h & Popup.cpp (Popup Context menu)
- NoEdit.h & NoEdit.cpp (Disabled edit box)
In your windows header file that's going host the control, include "calwnd.h"
// Include calendar and dependency files #include "CalWnd.h"
Now make a CCalWnd object a member of your hosting window class
class CMyWnd { public: ... Some other stuff protected: CCalWnd m_wndCalendar;
Now create the calendar window, usually done when the hosting window is created.
int CChildView::OnCreate(LPCREATESTRUCT lpCreateStruct) { // Call base class implementation of OnCreate first if (CWnd ::OnCreate(lpCreateStruct) == -1) return -1; // Now create our calendar control // This creates the window at the left, top position. // The calendar automatically sizes... if (m_wndCalendar.Create(NULL,"Calendar", WS_VISIBLE|WS_CHILD, CRect(20,20,0,0),this,0x0101) == -1) return -1; ... Some other code
Now we need to implement a handler for the date change notification. (When the user clicks on a date). This is inserted your hosting windows .cpp file. Put this outside of the AFX_MSG_MAP comments.
BEGIN_MESSAGE_MAP(CChildView,CWnd ) //{{AFX_MSG_MAP(CChildView) ON_WM_PAINT() ON_WM_CREATE() ON_WM_LBUTTONDBLCLK() //}}AFX_MSG_MAP ON_MESSAGE(WM_DATE_NOTIFY,OnDateNotify) // <--- HERE END_MESSAGE_MAP()
This is inserted your hosting windows .h file. Put this outside of the AFX_MSG_MAP comments.
//{{AFX_MSG(CChildView) afx_msg void OnPaint(); afx_msg int OnCreate(LPCREATESTRUCT lpCreateStruct); afx_msg void OnLButtonDblClk(UINT nFlags, CPoint point); //}}AFX_MSG afx_msg LRESULT OnDateNotify(WPARAM wParam, LPARAM nId); // <--- HERE DECLARE_MESSAGE_MAP()
On finally the handler itself.
LRESULT CChildView::OnDateNotify(WPARAM wParam, LPARAM nControlId) { COleDateTime tm = m_wndCalendar.GetDate(); TRACE("Date Selected %s for Control ID %d\n",tm.Format("%c"), nControlId); return 0; }
See the example for further use of the calendar. Please contact me if you find bugs, or you would like to see further functionality.
Happy coding... :)