initial commit

Signed-off-by: Peter Siegmund <mars3142@noreply.mars3142.dev>

libs/wxWidgets-3.3.1/include/wx/persist/checkbox.h

@@ -0,0 +1,89 @@
+///////////////////////////////////////////////////////////////////////////////
+// Name:        wx/persist/checkbox.h
+// Purpose:     Persistence support for wxCheckBox.
+// Author:      Alexander Koshelev, Vadim Zeitlin
+// Created:     2025-06-11
+// Copyright:   (c) 2025 wxWidgets team
+// Licence:     wxWindows licence
+///////////////////////////////////////////////////////////////////////////////
+
+#ifndef _WX_PERSIST_CHECKBOX_H_
+#define _WX_PERSIST_CHECKBOX_H_
+
+#include "wx/persist/window.h"
+
+#include "wx/checkbox.h"
+
+// ----------------------------------------------------------------------------
+// string constants used by wxPersistentCheckBox
+// ----------------------------------------------------------------------------
+
+#define wxPERSIST_CHECKBOX_KIND wxASCII_STR("Checkbox")
+
+#define wxPERSIST_CHECKBOX_VALUE wxASCII_STR("Value")
+
+// ----------------------------------------------------------------------------
+// wxPersistentCheckBox: supports saving/restoring checkbox state
+// ----------------------------------------------------------------------------
+
+// Implementation note: we depend on the values of wxCheckBoxState enum not
+// changing, as we save them directly as numbers, but this seems a safe bet as
+// it's hard to imagine adding any more values to it.
+
+class wxPersistentCheckBox : public wxPersistentWindow<wxCheckBox>
+{
+public:
+    explicit wxPersistentCheckBox(wxCheckBox* checkbox)
+        : wxPersistentWindow<wxCheckBox>(checkbox)
+    {
+    }
+
+    virtual void Save() const override
+    {
+        const wxCheckBox* const checkbox = Get();
+        const auto value = checkbox->Get3StateValue();
+        SaveValue(wxPERSIST_CHECKBOX_VALUE, static_cast<int>(value));
+    }
+
+    virtual bool Restore() override
+    {
+        int value;
+        if ( !RestoreValue(wxPERSIST_CHECKBOX_VALUE, &value) )
+            return false;
+
+        switch ( value )
+        {
+            case wxCHK_UNCHECKED:
+            case wxCHK_CHECKED:
+                // These values are always valid.
+                break;
+
+            case wxCHK_UNDETERMINED:
+                if ( Get()->Is3State() )
+                {
+                    // This value is valid for this checkbox.
+                    break;
+                }
+
+                wxFALLTHROUGH;
+
+            default:
+                // Silently ignore invalid values, as it's not really clear
+                // what else can we do about them.
+                return false;
+        }
+
+        Get()->Set3StateValue(static_cast<wxCheckBoxState>(value));
+
+        return true;
+    }
+
+    virtual wxString GetKind() const override { return wxPERSIST_CHECKBOX_KIND; }
+};
+
+inline wxPersistentObject *wxCreatePersistentObject(wxCheckBox* checkbox)
+{
+    return new wxPersistentCheckBox(checkbox);
+}
+
+#endif // _WX_PERSIST_CHECKBOX_H_