DiagramPanel

DiagramPanel

public DiagramPanel()

diagramPanel = DiagramPanel()

Initializes a new instance of the DiagramPanel.

IsEditing

public bool IsEditing { get; set; }

value = diagramPanel.IsEditing
diagramPanel.IsEditing = value

Whether editing is enabled.

Model

public ICompositionModel Model { get; set; }

value = diagramPanel.Model
diagramPanel.Model = value

The diagram model to display.

PanOffset

public Point PanOffset { get; set; }

value = diagramPanel.PanOffset
diagramPanel.PanOffset = value

Pan offset for scrolling.

SelectedNodeKey

public string SelectedNodeKey { get; set; }

value = diagramPanel.SelectedNodeKey
diagramPanel.SelectedNodeKey = value

Key of the selected node.

SelectedNodeKeys

public IReadOnlySet<string> SelectedNodeKeys { get; }

value = diagramPanel.SelectedNodeKeys

Get all selected node keys.

Zoom

public double Zoom { get; set; }

value = diagramPanel.Zoom
diagramPanel.Zoom = value

Current zoom level.

AddToSelection

public void AddToSelection(string nodeKey)

diagramPanel.AddToSelection(nodeKey)

Add a node to the selection.

ClearDropTargetHighlight

public void ClearDropTargetHighlight()

diagramPanel.ClearDropTargetHighlight()

Clears any drop target highlighting.

ClearSelection

public void ClearSelection()

diagramPanel.ClearSelection()

Clear all selections.

Copy

public void Copy()

diagramPanel.Copy()

Copy selected nodes to clipboard.

Cut

public void Cut()

diagramPanel.Cut()

Cut selected nodes to clipboard.

DeleteLink

public void DeleteLink(string fromNodeKey, string fromSocketId, string toNodeKey, string toSocketId)

diagramPanel.DeleteLink(fromNodeKey, fromSocketId, toNodeKey, toSocketId)

Delete the link between two sockets.

DeleteSelected

public void DeleteSelected()

diagramPanel.DeleteSelected()

Delete selected nodes and their connected links.

DiagramToScreen

public Point DiagramToScreen(Point diagram)

result = diagramPanel.DiagramToScreen(diagram)

Converts a diagram coordinate to screen coordinate.

diagram

Diagram coordinate.

Returns: Screen coordinate relative to this control.

FitView

public void FitView()

diagramPanel.FitView()

Fit all nodes into the view.

GetNodeAtPosition

public string GetNodeAtPosition(Point screenPosition)

result = diagramPanel.GetNodeAtPosition(screenPosition)

Gets the node key at the specified screen position, if any.

screenPosition

Screen position to test.

Returns: Node key if found, null otherwise.

HideDragPreview

public void HideDragPreview()

diagramPanel.HideDragPreview()

Hides the drag preview.

HighlightDropTarget

public void HighlightDropTarget(string nodeKey, bool isValid)

diagramPanel.HighlightDropTarget(nodeKey, isValid)

Highlights a node as a potential drop target.

nodeKey

Key of the node to highlight, or null to clear.

isValid

Whether this is a valid drop target.

OnKeyDown

protected override void OnKeyDown(KeyEventArgs e)

diagramPanel.OnKeyDown(e)

OnPointerMoved

protected override void OnPointerMoved(PointerEventArgs e)

diagramPanel.OnPointerMoved(e)

OnPointerPressed

protected override void OnPointerPressed(PointerPressedEventArgs e)

diagramPanel.OnPointerPressed(e)

OnPointerReleased

protected override void OnPointerReleased(PointerReleasedEventArgs e)

diagramPanel.OnPointerReleased(e)

OnPointerWheelChanged

protected override void OnPointerWheelChanged(PointerWheelEventArgs e)

diagramPanel.OnPointerWheelChanged(e)

Paste

public void Paste()

diagramPanel.Paste()

Paste nodes from clipboard.

Render

public override void Render(DrawingContext context)

diagramPanel.Render(context)

ResetView

public void ResetView()

diagramPanel.ResetView()

Reset view to default zoom and position.

ScreenToDiagram

public Point ScreenToDiagram(Point screen)

result = diagramPanel.ScreenToDiagram(screen)

Converts a screen coordinate to diagram coordinate.

screen

Screen coordinate relative to this control.

Returns: Diagram coordinate.

SelectAll

public void SelectAll()

diagramPanel.SelectAll()

Select all nodes.

ShowDragPreview

public void ShowDragPreview(Point screenPosition, string elementName, Color? previewColor)

diagramPanel.ShowDragPreview(screenPosition, elementName, previewColor)

Shows a drag preview ghost at the specified screen position.

screenPosition

Screen position relative to this control.

elementName

Name to display in the preview.

previewColor

Optional custom color for the preview.

UpdateDragPreview

public void UpdateDragPreview(Point screenPosition)

diagramPanel.UpdateDragPreview(screenPosition)

Updates the drag preview position during drag.

screenPosition

New screen position.

ZoomIn

public void ZoomIn()

diagramPanel.ZoomIn()

Zoom in by 25%.

ZoomOut

public void ZoomOut()

diagramPanel.ZoomOut()

Zoom out by 25%.

ModelModified

public event EventHandler ModelModified

diagramPanel.ModelModified += handler

Occurs when the diagram model is modified.

SelectionChanged

public event EventHandler<string> SelectionChanged

diagramPanel.SelectionChanged += handler

Occurs when the selected node changes.

IsEditingProperty

public static readonly StyledProperty<bool> IsEditingProperty

value = DiagramPanel.IsEditingProperty

Identifies the IsEditing dependency property.

ModelProperty

public static readonly StyledProperty<ICompositionModel> ModelProperty

value = DiagramPanel.ModelProperty

Identifies the Model dependency property.

PanOffsetProperty

public static readonly StyledProperty<Point> PanOffsetProperty

value = DiagramPanel.PanOffsetProperty

Identifies the PanOffset dependency property.

SelectedNodeKeyProperty

public static readonly StyledProperty<string> SelectedNodeKeyProperty

value = DiagramPanel.SelectedNodeKeyProperty

Identifies the SelectedNodeKey dependency property.

ZoomProperty

public static readonly StyledProperty<double> ZoomProperty

value = DiagramPanel.ZoomProperty

Identifies the Zoom dependency property.