MenuBarNode

Namespace: Hex1b

Assembly: Hex1b.dll

Render node for MenuBarWidget. Horizontal container for top-level menu triggers.

public sealed class MenuBarNode : Hex1bNode, ILayoutProvider

Inheritance

Object → Hex1bNode → MenuBarNode

Implements

• ILayoutProvider

Properties

ClipMode

The clip mode for this layout region.

Returns: ClipMode

public ClipMode ClipMode { get; set; }

ClipRect

The effective clipping rectangle for this layout region.

Returns: Rect

public Rect ClipRect { get; }

IsFocusable

Returns true if this node can receive focus.

Returns: Boolean

public override bool IsFocusable { get; }

ManagesChildFocus

Returns true if this node manages focus for its children. When a parent manages focus, child containers should NOT set initial focus themselves. Container nodes like SplitterNode should override this to return true.

Returns: Boolean

public override bool ManagesChildFocus { get; }

MenuAccelerators

The computed accelerators for each menu.

Returns: List<MenuWidget, Char>, Int32>>

public List<(MenuWidget Menu, char? Accelerator, int Index)> MenuAccelerators { get; set; }

MenuNodes

The reconciled menu nodes.

Returns: List<MenuNode>

public List<MenuNode> MenuNodes { get; set; }

Menus

The top-level menus.

Returns: IReadOnlyList<MenuWidget>

public IReadOnlyList<MenuWidget> Menus { get; set; }

ParentLayoutProvider

The parent layout provider, if any. Set when this provider becomes the current layout provider and there was already one active. Used to ensure nested clipping works correctly.

Returns: ILayoutProvider

public ILayoutProvider? ParentLayoutProvider { get; set; }

SourceWidget

The source widget that was reconciled into this node.

Returns: MenuBarWidget

public MenuBarWidget? SourceWidget { get; set; }

Methods

ArrangeCore(Rect)

Override this method to implement arranging logic for this node. The base implementation saves previous bounds, marks dirty on change, and sets bounds.

Parameters:

• bounds (Rect):

protected override void ArrangeCore(Rect bounds)

ClipString(int, int, string)

Clips a string that starts at the given position, returning only the visible portion. Implementations should also consult the ParentLayoutProvider if present.

Parameters:

• x (Int32): Starting absolute X position.
• y (Int32): Absolute Y position.
• text (String): The text to potentially clip.

Returns: ValueTuple<Int32, String>

A tuple containing:

• adjustedX: The X position to start rendering (may be > x if left-clipped)
• clippedText: The portion of text that should be rendered (may be empty)

public (int adjustedX, string clippedText) ClipString(int x, int y, string text)

ConfigureDefaultBindings(InputBindingsBuilder)

Configures the default input bindings for this node type. Override in derived classes to add default key bindings. These bindings can be inspected and modified by the user's callback.

Parameters:

• bindings (InputBindingsBuilder): The builder to add bindings to.

public override void ConfigureDefaultBindings(InputBindingsBuilder bindings)

GetChildren()

Gets the direct children of this node. Used for input routing and tree traversal. Container nodes should override this to return their children.

Returns: IEnumerable<Hex1bNode>

public override IEnumerable<Hex1bNode> GetChildren()

GetFocusableNodes()

Gets all focusable nodes in this subtree (including this node if focusable).

Returns: IEnumerable<Hex1bNode>

public override IEnumerable<Hex1bNode> GetFocusableNodes()

MeasureCore(Constraints)

Override this method to implement measuring logic for this node.

Parameters:

• constraints (Constraints):

Returns: Size

protected override Size MeasureCore(Constraints constraints)

Render(Hex1bRenderContext)

Renders the node to the given context.

Parameters:

• context (Hex1bRenderContext):

public override void Render(Hex1bRenderContext context)

ShouldRenderAt(int, int)

Determines if a character at the given absolute position should be rendered. Implementations should also check the ParentLayoutProvider if present.

Parameters:

• x (Int32): Absolute X position in terminal coordinates.
• y (Int32): Absolute Y position in terminal coordinates.

Returns: Boolean

True if the character should be rendered, false if it should be clipped.

public bool ShouldRenderAt(int x, int y)