* Determine whether to use a 3-state or 2-state
* checkbox. 3-state enables to differentiate
* between 'unchecked', 'checked' and 'undetermined'.
+ *
+ * In addition to the styles here it is also possible to specify just 0 which
+ * is treated the same as wxCHK_2STATE for compatibility (but using explicit
+ * flag is preferred).
*/
-#define wxCHK_2STATE 0x0000
+#define wxCHK_2STATE 0x4000
#define wxCHK_3STATE 0x1000
/*
*/
#define wxCHK_ALLOW_3RD_STATE_FOR_USER 0x2000
-/*
- * The possible states of a 3-state checkbox (Compatible
- * with the 2-state checkbox).
- */
-enum wxCheckBoxState
-{
- wxCHK_UNCHECKED,
- wxCHK_CHECKED,
- wxCHK_UNDETERMINED /* 3-state checkbox only */
-};
-
-
extern WXDLLIMPEXP_DATA_CORE(const char) wxCheckBoxNameStr[];
// ----------------------------------------------------------------------------
return wxCHK_UNCHECKED;
}
+ // Helper function to be called from derived classes Create()
+ // implementations: it checks that the style doesn't contain any
+ // incompatible bits and modifies it to be sane if it does.
+ static void WXValidateStyle(long *stylePtr)
+ {
+ long& style = *stylePtr;
+
+ if ( !(style & (wxCHK_2STATE | wxCHK_3STATE)) )
+ {
+ // For compatibility we use absence of style flags as wxCHK_2STATE
+ // because wxCHK_2STATE used to have the value of 0 and some
+ // existing code uses 0 instead of it. Moreover, some code even
+ // uses some non-0 style, e.g. wxBORDER_XXX, but doesn't specify
+ // neither wxCHK_2STATE nor wxCHK_3STATE -- to avoid breaking it,
+ // assume (much more common) 2 state checkbox by default.
+ style |= wxCHK_2STATE;
+ }
+
+ if ( style & wxCHK_3STATE )
+ {
+ if ( style & wxCHK_2STATE )
+ {
+ wxFAIL_MSG( "wxCHK_2STATE and wxCHK_3STATE can't be used "
+ "together" );
+ style &= ~wxCHK_3STATE;
+ }
+ }
+ else // No wxCHK_3STATE
+ {
+ if ( style & wxCHK_ALLOW_3RD_STATE_FOR_USER )
+ {
+ wxFAIL_MSG( "wxCHK_ALLOW_3RD_STATE_FOR_USER doesn't make sense "
+ "without wxCHK_3STATE" );
+ style &= ~wxCHK_ALLOW_3RD_STATE_FOR_USER;
+ }
+ }
+ }
+
private:
- DECLARE_NO_COPY_CLASS(wxCheckBoxBase)
+ wxDECLARE_NO_COPY_CLASS(wxCheckBoxBase);
};
+// Most ports support 3 state checkboxes so define this by default.
+#define wxHAS_3STATE_CHECKBOX
+
#if defined(__WXUNIVERSAL__)
#include "wx/univ/checkbox.h"
#elif defined(__WXMSW__)
#elif defined(__WXGTK20__)
#include "wx/gtk/checkbox.h"
#elif defined(__WXGTK__)
+ #undef wxHAS_3STATE_CHECKBOX
#include "wx/gtk1/checkbox.h"
#elif defined(__WXMAC__)
#include "wx/osx/checkbox.h"
#elif defined(__WXCOCOA__)
#include "wx/cocoa/checkbox.h"
#elif defined(__WXPM__)
+ #undef wxHAS_3STATE_CHECKBOX
#include "wx/os2/checkbox.h"
-#elif defined(__WXPALMOS__)
- #include "wx/palmos/checkbox.h"
#endif
#endif // wxUSE_CHECKBOX
-#endif
- // _WX_CHECKBOX_H_BASE_
+#endif // _WX_CHECKBOX_H_BASE_