// Created: 2008-12-01
// RCS-ID: $Id$
// Copyright: (c) 2008 Vadim Zeitlin <vadim@wxwidgets.org>
-// Licence: wxWindows license
+// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
/**
Notice that this is an abstract base class which is implemented (usually
using the information stored in the associated control) by the different
- controls using wxHeaderCtrl. You may use wxHeaderCtrlSimple which uses
- concrete wxHeaderColumnSimple if you don't already store the column
- information somewhere.
+ controls using wxHeaderCtrl. As the control only needs to retrieve the
+ information about the column, this class defines only the methods for
+ accessing the various column properties but not for changing them as the
+ setters might not be needed at all, e.g. if the column attributes can only
+ be changed via the methods of the main associated control (this is the case
+ for wxGrid for example). If you do want to allow changing them directly
+ using the column itself, you should inherit from wxSettableHeaderColumn
+ instead of this class.
+
+ Finally, if you don't already store the column information at all anywhere,
+ you should use the concrete wxHeaderColumnSimple class and
+ wxHeaderCtrlSimple.
@library{wxcore}
@category{ctrl}
{
public:
/**
- Set the text to display in the column header.
+ Get the text shown in the column header.
*/
- virtual void SetTitle(const wxString& title) = 0;
+ virtual wxString GetTitle() const = 0;
/**
- Get the text shown in the column header.
+ Returns the bitmap in the header of the column, if any.
+
+ If the column has no associated bitmap, wxNullBitmap should be returned.
+ */
+ virtual wxBitmap GetBitmap() const = 0;
+
+ /**
+ Returns the current width of the column.
+
+ @return
+ Width of the column in pixels, never wxCOL_WIDTH_DEFAULT.
+ */
+ virtual int GetWidth() const = 0;
+
+ /**
+ Return the minimal column width.
+
+ @return
+ The minimal width such that the user can't resize the column to
+ lesser size (notice that it is still possible to set the column
+ width to smaller value from the program code). Return 0 from here
+ to allow resizing the column to arbitrarily small size.
*/
- virtual wxString GetTitle() const = 0;
+ virtual int GetMinWidth() const = 0;
/**
- Set the bitmap to be displayed in the column header.
+ Returns the current column alignment.
- Notice that the bitmaps displayed in different columns of the same
- control must all be of the same size.
+ @return
+ One of wxALIGN_CENTRE, wxALIGN_LEFT or wxALIGN_RIGHT.
*/
- virtual void SetBitmap(const wxBitmap& bitmap) = 0;
+ virtual wxAlignment GetAlignment() const = 0;
+
/**
- Returns the bitmap in the header of the column, if any.
+ Get the column flags.
+
+ This method retrieves all the flags at once, you can also use HasFlag()
+ to test for any individual flag or IsResizeable(), IsSortable(),
+ IsReorderable() and IsHidden() to test for particular flags.
+ */
+ virtual int GetFlags() const = 0;
+
+ /**
+ Return @true if the specified flag is currently set for this column.
+ */
+ bool HasFlag(int flag) const;
+
+
+ /**
+ Return true if the column can be resized by the user.
+
+ Equivalent to HasFlag(wxCOL_RESIZABLE).
+ */
+ virtual bool IsResizeable() const;
- If the column has no associated bitmap, wxNullBitmap is returned.
+ /**
+ Returns @true if the column can be clicked by user to sort the control
+ contents by the field in this column.
+
+ This corresponds to wxCOL_SORTABLE flag which is off by default.
*/
- virtual wxBitmap GetBitmap() const = 0;
+ virtual bool IsSortable() const;
+
+ /**
+ Returns @true if the column can be dragged by user to change its order.
+
+ This corresponds to wxCOL_REORDERABLE flag which is on by default.
+ */
+ virtual bool IsReorderable() const;
+
+ /**
+ Returns @true if the column is currently hidden.
+
+ This corresponds to wxCOL_HIDDEN flag which is off by default.
+ */
+ virtual bool IsHidden() const;
+
+ /**
+ Returns @true if the column is currently shown.
+
+ This corresponds to the absence of wxCOL_HIDDEN flag.
+ */
+ bool IsShown() const;
+
+
+ /**
+ Returns @true if the column is currently used for sorting.
+ */
+ virtual bool IsSortKey() const = 0;
+
+ /**
+ Returns @true, if the sort order is ascending.
+
+ Notice that it only makes sense to call this function if the column is
+ used for sorting at all, i.e. if IsSortKey() returns @true.
+ */
+ virtual bool IsSortOrderAscending() const = 0;
+};
+
+/**
+ @class wxSettableHeaderColumn
+
+ Adds methods to set the column attributes to wxHeaderColumn.
+
+ This class adds setters for the column attributes defined by
+ wxHeaderColumn. It is still an abstract base class and needs to be
+ implemented before using it with wxHeaderCtrl.
+
+ @library{wxcore}
+ @category{ctrl}
+ */
+class wxSettableHeaderColumn : public wxHeaderColumn
+{
+public:
+ /**
+ Set the text to display in the column header.
+ */
+ virtual void SetTitle(const wxString& title) = 0;
+
+ /**
+ Set the bitmap to be displayed in the column header.
+
+ Notice that the bitmaps displayed in different columns of the same
+ control must all be of the same size.
+ */
+ virtual void SetBitmap(const wxBitmap& bitmap) = 0;
/**
Set the column width.
*/
virtual void SetWidth(int width) = 0;
- /**
- Returns the current width of the column.
-
- @return
- Width of the column in pixels, never wxCOL_WIDTH_DEFAULT.
- */
- virtual int GetWidth() const = 0;
-
/**
Set the minimal column width.
*/
virtual void SetMinWidth(int minWidth) = 0;
- /**
- Return the minimal column width.
-
- @return
- The value previously set by SetMinWidth() or 0 by default.
- */
- virtual int GetMinWidth() const = 0;
-
/**
Set the alignment of the column header.
*/
virtual void SetAlignment(wxAlignment align) = 0;
- /**
- Returns the current column alignment.
-
- @return
- One of wxALIGN_CENTRE, wxALIGN_LEFT or wxALIGN_RIGHT.
- */
- virtual wxAlignment GetAlignment() const = 0;
-
/**
Set the column flags.
*/
void ToggleFlag(int flag);
- /**
- Get the column flags.
-
- This method retrieves all the flags at once, you can also use HasFlag()
- to test for any individual flag or IsResizeable(), IsSortable(),
- IsReorderable() and IsHidden() to test for particular flags.
-
- @see SetFlags()
- */
- virtual int GetFlags() const = 0;
-
- /**
- Return @true if the specified flag is currently set for this column.
- */
- bool HasFlag(int flag) const;
-
/**
Call this to enable or disable interactive resizing of the column by
*/
virtual void SetResizeable(bool resizeable);
- /**
- Return true if the column can be resized by the user.
-
- Equivalent to HasFlag(wxCOL_RESIZABLE).
- */
- virtual bool IsResizeable() const;
-
/**
Allow clicking the column to sort the control contents by the field in
this column.
*/
virtual void SetSortable(bool sortable);
- /**
- Returns @true if the column can be clicked by user to sort the control
- contents by the field in this column.
-
- This corresponds to wxCOL_SORTABLE flag which is off by default.
-
- @see SetSortable()
- */
- virtual bool IsSortable() const;
-
/**
Allow changing the column order by dragging it.
*/
virtual void SetReorderable(bool reorderable);
- /**
- Returns @true if the column can be dragged by user to change its order.
-
- This corresponds to wxCOL_REORDERABLE flag which is on by default.
-
- @see SetReorderable()
- */
- virtual bool IsReorderable() const;
-
/**
Hide or show the column.
*/
virtual void SetHidden(bool hidden);
- /**
- Returns @true if the column is currently hidden.
-
- This corresponds to wxCOL_HIDDEN flag which is off by default.
- */
- virtual bool IsHidden() const;
-
- /**
- Returns @true if the column is currently shown.
-
- This corresponds to the absence of wxCOL_HIDDEN flag.
- */
- bool IsShown() const;
-
-
/**
Sets this column as the sort key for the associated control.
*/
void UnsetAsSortKey();
- /**
- Returns @true if the column is currently used for sorting.
-
- Notice that this function simply returns the value last passed to
- SetAsSortKey() (or @false if SetAsSortKey() had never been called), it
- is up to the associated control to use this information to actually
- sort its contents.
- */
- virtual bool IsSortKey() const = 0;
-
/**
Sets the sort order for this column.
@see SetSortOrder(), IsSortOrderAscending()
*/
void ToggleSortOrder();
-
- /**
- Returns @true, if the sort order is ascending.
-
- Notice that it only makes sense to call this function if the column is
- used for sorting at all, i.e. if IsSortKey() returns @true.
-
- @see SetSortOrder()
- */
- virtual bool IsSortOrderAscending() const = 0;
};
/**
Simple container for the information about the column.
- This is a concrete class implementing all base wxHeaderColumn class methods
- in a trivial way, i.e. by just storing the information in the object
- itself. It is used by and with wxHeaderCtrlSimple, e.g.
+ This is a concrete class implementing all wxSettableHeaderColumn class
+ methods in a trivial way, i.e. by just storing the information in the
+ object itself. It is used by and with wxHeaderCtrlSimple, e.g.
@code
wxHeaderCtrlSimple * header = new wxHeaderCtrlSimple(...);
wxHeaderColumnSimple col("Title");
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