DataFieldOverrideSelectMenu

Popup menu that allows designers to select an overridable field from a FactorableData type and add it as a new DataFieldOverride to the current DataOverride. Filters out fields that are already overridden.

Definition

Namespace: Paragon.Core.ScriptableFactory.Editor Assembly: Paragon.Editor.dll

public class DataFieldOverrideSelectMenu

Remarks

This menu is instantiated by DataOverrideDrawer and opened when the designer clicks the "Add New Override" button. It uses Odin's GenericSelector<string> to present a popup window listing all eligible field names.

The menu enforces one filtering rule: fields already present in the DataOverride's fieldOverrides are excluded from the selection list via Except(). Only fields marked with [Overridable] on the FactorableData subclass appear in the list.

When the designer selects a field:

1. DataOverride.AddFieldOverride(selectedField) is called to create the override entry.

2. The parent drawer's property is marked dirty to trigger serialization.

Quick Lookup

Goal	How
Open the field picker	selectMenu.Show(buttonRect)
Eligible fields	All [Overridable] fields minus those already overridden
Popup dimensions	115 px wide, 20 px per item

Constructor

public DataFieldOverrideSelectMenu(DataOverrideDrawer drawer)

Parameter	Type	Description
drawer	DataOverrideDrawer	The parent drawer whose DataOverride will receive the new field override

Stores a reference to the parent drawer for accessing ValueEntry.SmartValue and marking the property tree dirty.

Methods

Show

Opens the popup menu anchored to the given button rect.

public void Show(Rect buttonRect)

Parameter	Type	Description
buttonRect	Rect	The screen-space rect of the button that triggered the menu

Behavior:

1. Reads the current DataOverride from the parent drawer's ValueEntry.SmartValue.

2. Creates a GenericSelector<string> populated with GetOverridableFields().

3. Configures the selector: double-click to confirm, no search toolbar, 20 px item height.

4. Opens the selector in a popup window positioned just below the triggering button.

5. Subscribes to SelectionConfirmed and window OnClose events.

OnSelectionConfirmed

Callback invoked when the designer double-clicks or confirms a field selection.

private void OnSelectionConfirmed(IEnumerable<string> selection)

Behavior:

• Extracts the first selected field name.

• Calls dataOverride.AddFieldOverride(selectedField) to create the override.

• Marks the parent drawer's serialization root dirty via drawer.Property.MarkSerializationRootDirty().

GetOverridableFields

Returns the list of field names available for override selection.

private IEnumerable<string> GetOverridableFields()

Returns: All [Overridable] field names from the DataOverride's data type, minus field names already present in the override dictionary.

OnClose

Cleanup callback invoked when the popup window closes. Clears the selector's selection state and nullifies the window reference.

private void OnClose()

Constants

width

Fixed width of the popup window in pixels.

private const int width = 115;

item_height

Height of each selectable item in the popup list.

private const int item_height = 20;

Common Pitfalls

Empty popup when all fields are overridden If every [Overridable] field already has an override, the popup will appear empty. The menu does not prevent opening in this case — it simply shows no items.

Popup positioning The popup is positioned using GUIUtility.GUIToScreenPoint() relative to the triggering button. If the Inspector is docked in an unusual layout, the popup may appear offset. The 3 px padding (AddPosition(3, 3)) accounts for standard toolbar margins.

See Also

• DataOverrideDrawer — parent drawer that owns this menu

• DataOverride — runtime class receiving the new override

• DataFieldOverride — runtime class created for each selected field

• OverridableAttribute — attribute that marks eligible fields

• Variant Editor — editor subsystem overview