wxTopLevelWindow::GeometrySerializer Class Reference

#include <wx/toplevel.h>

Detailed Description

Class used with SaveGeometry() and RestoreToGeometry().

This is an abstract base class, i.e. to use it you must define a derived class implementing the pure virtual SaveField() and RestoreField() methods.

For example, if you wished to store the window geometry in a database, you could derive a class saving fields such as "width" or "height" in a table in this database and restoring them from it later.

Since

3.1.2

Private Member Functions
virtual bool	SaveField (const wxString &name, int value) const =0
	Save a single field with the given value. More...
virtual bool	RestoreField (const wxString &name, int *value)=0
	Try to restore a single field. More...

Member Function Documentation

RestoreField()

virtual bool wxTopLevelWindow::GeometrySerializer::RestoreField ( const wxString &  name, int *  value  )

privatepure virtual

Try to restore a single field.

Unlike for SaveField(), returning false from this function may indicate that the value simply wasn't present and doesn't prevent RestoreToGeometry() from continuing with trying to restore the other values.

Parameters

name	uniquely identifies the field
value	non-NULL pointer to the value to be filled by this function

Returns

true if the value was retrieved or false if it wasn't found or an error occurred.

SaveField()

virtual bool wxTopLevelWindow::GeometrySerializer::SaveField ( const wxString &  name, int  value  ) const

privatepure virtual

Save a single field with the given value.

Note that if this function returns false, SaveGeometry() supposes that saving the geometry failed and returns false itself, without even trying to save anything else.

Parameters

name	uniquely identifies the field but is otherwise arbitrary.
value	value of the field (can be positive or negative, i.e. it can't be assumed that a value like -1 is invalid).

Returns

true if the field was saved or false if saving it failed, resulting in wxTopLevelWindow::SaveGeometry() failure.