Class MapControl

Inheritance
object
AvaloniaObject
Animatable
StyledElement
Visual
Layoutable
Interactive
InputElement
Control
TemplatedControl
ContentControl
UserControl
MapControl
Implements
IDataContextProvider
ILogical
IThemeVariantHost
IResourceHost
IResourceNode
IStyleHost
ISetLogicalParent
ISetInheritanceParent
IStyleable
IInputElement
IDataTemplateHost
INamed
ISetterValue
Inherited Members
ContentControl.ContentProperty
ContentControl.ContentTemplateProperty
ContentControl.HorizontalContentAlignmentProperty
ContentControl.VerticalContentAlignmentProperty
ContentControl.RegisterContentPresenter(ContentPresenter)
ContentControl.Content
ContentControl.ContentTemplate
ContentControl.Presenter
ContentControl.HorizontalContentAlignment
ContentControl.VerticalContentAlignment
TemplatedControl.BackgroundProperty
TemplatedControl.BorderBrushProperty
TemplatedControl.BorderThicknessProperty
TemplatedControl.CornerRadiusProperty
TemplatedControl.FontFamilyProperty
TemplatedControl.FontSizeProperty
TemplatedControl.FontStyleProperty
TemplatedControl.FontWeightProperty
TemplatedControl.FontStretchProperty
TemplatedControl.ForegroundProperty
TemplatedControl.PaddingProperty
TemplatedControl.TemplateProperty
TemplatedControl.IsTemplateFocusTargetProperty
TemplatedControl.TemplateAppliedEvent
TemplatedControl.GetIsTemplateFocusTarget(Control)
TemplatedControl.ApplyTemplate()
TemplatedControl.GetTemplateFocusTarget()
TemplatedControl.OnAttachedToLogicalTree(LogicalTreeAttachmentEventArgs)
TemplatedControl.OnDetachedFromLogicalTree(LogicalTreeAttachmentEventArgs)
TemplatedControl.OnApplyTemplate(TemplateAppliedEventArgs)
TemplatedControl.OnTemplateChanged(AvaloniaPropertyChangedEventArgs)
TemplatedControl.Background
TemplatedControl.BorderBrush
TemplatedControl.BorderThickness
TemplatedControl.CornerRadius
TemplatedControl.FontFamily
TemplatedControl.FontSize
TemplatedControl.FontStyle
TemplatedControl.FontWeight
TemplatedControl.FontStretch
TemplatedControl.Foreground
TemplatedControl.Padding
TemplatedControl.Template
TemplatedControl.TemplateApplied
Control.FocusAdornerProperty
Control.TagProperty
Control.ContextMenuProperty
Control.ContextFlyoutProperty
Control.RequestBringIntoViewEvent
Control.ContextRequestedEvent
Control.LoadedEvent
Control.UnloadedEvent
Control.SizeChangedEvent
Control.OnLoaded(RoutedEventArgs)
Control.OnUnloaded(RoutedEventArgs)
Control.OnSizeChanged(SizeChangedEventArgs)
Control.OnAttachedToVisualTreeCore(VisualTreeAttachmentEventArgs)
Control.OnDetachedFromVisualTreeCore(VisualTreeAttachmentEventArgs)
Control.OnGotFocus(GotFocusEventArgs)
Control.OnLostFocus(RoutedEventArgs)
Control.OnCreateAutomationPeer()
Control.OnPointerReleased(PointerReleasedEventArgs)
Control.OnKeyUp(KeyEventArgs)
Control.FocusAdorner
Control.DataTemplates
Control.ContextMenu
Control.ContextFlyout
Control.IsLoaded
Control.Tag
Control.ContextRequested
Control.Loaded
Control.Unloaded
Control.SizeChanged
InputElement.FocusableProperty
InputElement.IsEnabledProperty
InputElement.IsEffectivelyEnabledProperty
InputElement.CursorProperty
InputElement.IsKeyboardFocusWithinProperty
InputElement.IsFocusedProperty
InputElement.IsHitTestVisibleProperty
InputElement.IsPointerOverProperty
InputElement.IsTabStopProperty
InputElement.GotFocusEvent
InputElement.LostFocusEvent
InputElement.KeyDownEvent
InputElement.KeyUpEvent
InputElement.TabIndexProperty
InputElement.TextInputEvent
InputElement.TextInputMethodClientRequestedEvent
InputElement.PointerEnteredEvent
InputElement.PointerExitedEvent
InputElement.PointerMovedEvent
InputElement.PointerPressedEvent
InputElement.PointerReleasedEvent
InputElement.PointerCaptureLostEvent
InputElement.PointerWheelChangedEvent
InputElement.TappedEvent
InputElement.HoldingEvent
InputElement.DoubleTappedEvent
InputElement.Focus(NavigationMethod, KeyModifiers)
InputElement.OnKeyDown(KeyEventArgs)
InputElement.OnTextInput(TextInputEventArgs)
InputElement.OnPointerEntered(PointerEventArgs)
InputElement.OnPointerExited(PointerEventArgs)
InputElement.OnPointerPressed(PointerPressedEventArgs)
InputElement.OnPointerCaptureLost(PointerCaptureLostEventArgs)
InputElement.OnPointerWheelChanged(PointerWheelEventArgs)
InputElement.UpdateIsEffectivelyEnabled()
InputElement.Focusable
InputElement.IsEnabled
InputElement.Cursor
InputElement.IsKeyboardFocusWithin
InputElement.IsFocused
InputElement.IsHitTestVisible
InputElement.IsPointerOver
InputElement.IsTabStop
InputElement.IsEffectivelyEnabled
InputElement.TabIndex
InputElement.KeyBindings
InputElement.IsEnabledCore
InputElement.GestureRecognizers
InputElement.GotFocus
InputElement.LostFocus
InputElement.KeyDown
InputElement.KeyUp
InputElement.TextInput
InputElement.TextInputMethodClientRequested
InputElement.PointerEntered
InputElement.PointerExited
InputElement.PointerMoved
InputElement.PointerPressed
InputElement.PointerReleased
InputElement.PointerCaptureLost
InputElement.PointerWheelChanged
InputElement.Tapped
InputElement.Holding
InputElement.DoubleTapped
Interactive.RaiseEvent(RoutedEventArgs)
Interactive.BuildEventRoute(RoutedEvent)
Layoutable.DesiredSizeProperty
Layoutable.WidthProperty
Layoutable.HeightProperty
Layoutable.MinWidthProperty
Layoutable.MaxWidthProperty
Layoutable.MinHeightProperty
Layoutable.MaxHeightProperty
Layoutable.MarginProperty
Layoutable.HorizontalAlignmentProperty
Layoutable.VerticalAlignmentProperty
Layoutable.UseLayoutRoundingProperty
Layoutable.UpdateLayout()
Layoutable.Measure(Size)
Layoutable.Arrange(Rect)
Layoutable.InvalidateMeasure()
Layoutable.InvalidateArrange()
Layoutable.AffectsMeasure<T>(params AvaloniaProperty[])
Layoutable.AffectsArrange<T>(params AvaloniaProperty[])
Layoutable.MeasureCore(Size)
Layoutable.MeasureOverride(Size)
Layoutable.ArrangeCore(Rect)
Layoutable.ArrangeOverride(Size)
Layoutable.OnMeasureInvalidated()
Layoutable.OnVisualParentChanged(Visual, Visual)
Layoutable.Width
Layoutable.Height
Layoutable.MinWidth
Layoutable.MaxWidth
Layoutable.MinHeight
Layoutable.MaxHeight
Layoutable.Margin
Layoutable.HorizontalAlignment
Layoutable.VerticalAlignment
Layoutable.DesiredSize
Layoutable.IsMeasureValid
Layoutable.IsArrangeValid
Layoutable.UseLayoutRounding
Layoutable.EffectiveViewportChanged
Layoutable.LayoutUpdated
Visual.BoundsProperty
Visual.ClipToBoundsProperty
Visual.ClipProperty
Visual.IsVisibleProperty
Visual.OpacityProperty
Visual.OpacityMaskProperty
Visual.EffectProperty
Visual.HasMirrorTransformProperty
Visual.RenderTransformProperty
Visual.RenderTransformOriginProperty
Visual.FlowDirectionProperty
Visual.VisualParentProperty
Visual.ZIndexProperty
Visual.GetFlowDirection(Visual)
Visual.SetFlowDirection(Visual, FlowDirection)
Visual.InvalidateVisual()
Visual.AffectsRender<T>(params AvaloniaProperty[])
Visual.OnAttachedToVisualTree(VisualTreeAttachmentEventArgs)
Visual.OnDetachedFromVisualTree(VisualTreeAttachmentEventArgs)
Visual.InvalidateMirrorTransform()
Visual.Bounds
Visual.ClipToBounds
Visual.Clip
Visual.IsEffectivelyVisible
Visual.IsVisible
Visual.Opacity
Visual.OpacityMask
Visual.Effect
Visual.HasMirrorTransform
Visual.RenderTransform
Visual.RenderTransformOrigin
Visual.FlowDirection
Visual.ZIndex
Visual.VisualChildren
Visual.VisualRoot
Visual.BypassFlowDirectionPolicies
Visual.AttachedToVisualTree
Visual.DetachedFromVisualTree
StyledElement.DataContextProperty
StyledElement.NameProperty
StyledElement.ParentProperty
StyledElement.TemplatedParentProperty
StyledElement.ThemeProperty
StyledElement.BeginInit()
StyledElement.EndInit()
StyledElement.ApplyStyling()
StyledElement.InitializeIfNeeded()
StyledElement.OnDataContextBeginUpdate()
StyledElement.OnDataContextEndUpdate()
StyledElement.OnInitialized()
StyledElement.Name
StyledElement.Classes
StyledElement.DataContext
StyledElement.IsInitialized
StyledElement.Styles
StyledElement.StyleKey
StyledElement.Resources
StyledElement.TemplatedParent
StyledElement.Theme
StyledElement.LogicalChildren
StyledElement.PseudoClasses
StyledElement.StyleKeyOverride
StyledElement.Parent
StyledElement.ActualThemeVariant
StyledElement.AttachedToLogicalTree
StyledElement.DetachedFromLogicalTree
StyledElement.DataContextChanged
StyledElement.Initialized
StyledElement.ResourcesChanged
StyledElement.ActualThemeVariantChanged
Animatable.TransitionsProperty
Animatable.OnPropertyChangedCore(AvaloniaPropertyChangedEventArgs)
Animatable.Transitions
AvaloniaObject.CheckAccess()
AvaloniaObject.VerifyAccess()
AvaloniaObject.ClearValue(AvaloniaProperty)
AvaloniaObject.ClearValue<T>(AvaloniaProperty<T>)
AvaloniaObject.ClearValue<T>(StyledProperty<T>)
AvaloniaObject.ClearValue<T>(DirectPropertyBase<T>)
AvaloniaObject.GetHashCode()
AvaloniaObject.GetValue(AvaloniaProperty)
AvaloniaObject.GetValue<T>(StyledProperty<T>)
AvaloniaObject.GetValue<T>(DirectPropertyBase<T>)
AvaloniaObject.GetBaseValue<T>(StyledProperty<T>)
AvaloniaObject.IsAnimating(AvaloniaProperty)
AvaloniaObject.IsSet(AvaloniaProperty)
AvaloniaObject.SetValue<T>(StyledProperty<T>, T, BindingPriority)
AvaloniaObject.SetValue<T>(DirectPropertyBase<T>, T)
AvaloniaObject.SetCurrentValue<T>(StyledProperty<T>, T)
AvaloniaObject.CoerceValue(AvaloniaProperty)
AvaloniaObject.RaisePropertyChanged<T>(DirectPropertyBase<T>, T, T)
AvaloniaObject.SetAndRaise<T>(DirectPropertyBase<T>, ref T, T)
AvaloniaObject.InheritanceParent
AvaloniaObject.this[AvaloniaProperty]
AvaloniaObject.this[IndexerDescriptor]
Namespace: Mapsui.UI.Avalonia
Assembly: Mapsui.UI.Avalonia.dll
Syntax
public class MapControl : UserControl, IDataContextProvider, ILogical, IThemeVariantHost, IResourceHost, IResourceNode, IStyleHost, ISetLogicalParent, ISetInheritanceParent, ISupportInitialize, IStyleable, IInputElement, IDataTemplateHost, INamed, ISetterValue, IMapControl, IDisposable, INotifyPropertyChanged

Constructors

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MapControl()

Declaration
public MapControl()

Properties

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ContinuousMouseWheelZoomStepSize

The size of the mouse wheel steps used when UseContinuousMouseWheelZoom = true. The default is 0.1. A step size of 1 would doubling or halving the scale of the map on each event.

Declaration
public double ContinuousMouseWheelZoomStepSize { get; set; }
Property Value
Type Description
double
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Map

Map holding data for which is shown in this MapControl

Declaration
public Map Map { get; set; }
Property Value
Type Description
Map
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Performance

Object to save performance information about the drawing of the map

Declaration
public Performance? Performance { get; set; }
Property Value
Type Description
Performance
Remarks

If this is null, no performance information is saved.

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PixelDensity

The number of pixel per device independent unit

Declaration
public float PixelDensity { get; }
Property Value
Type Description
float
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ReSnapRotationDegrees

With how many degrees from 0 should map snap to 0 degrees

Declaration
public double ReSnapRotationDegrees { get; set; }
Property Value
Type Description
double
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Renderer

Renderer that is used from this MapControl

Declaration
public IRenderer Renderer { get; set; }
Property Value
Type Description
IRenderer
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ShiftPressed

Declaration
public bool ShiftPressed { get; set; }
Property Value
Type Description
bool
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UnSnapRotationDegrees

After how many degrees start rotation to take place

Declaration
public double UnSnapRotationDegrees { get; set; }
Property Value
Type Description
double
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UpdateInterval

Interval between two redraws of the MapControl in ms

Declaration
public int UpdateInterval { get; set; }
Property Value
Type Description
int
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UseContinuousMouseWheelZoom

This enables an alternative mouse wheel method where the step size on each mouse wheel event can be configured by setting the ContinuousMouseWheelZoomStepSize.

Declaration
public bool UseContinuousMouseWheelZoom { get; set; }
Property Value
Type Description
bool

Methods

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CallHomeIfNeeded()

Declaration
public void CallHomeIfNeeded()
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ClearTouchState()

Clears the Touch State

Declaration
public void ClearTouchState()
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Dispose()

Performs application-defined tasks associated with freeing, releasing, or resetting unmanaged resources.

Declaration
public virtual void Dispose()
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Dispose(bool)

Declaration
protected virtual void Dispose(bool disposing)
Parameters
Type Name Description
bool disposing
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ForceUpdate()

Force a update of control

Declaration
public void ForceUpdate()
Remarks

When this function is called, the control draws itself once

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GetMapInfo(MPoint?, int)

Check, if a feature at a given screen position is hit

Declaration
public MapInfo? GetMapInfo(MPoint? screenPosition, int margin = 0)
Parameters
Type Name Description
MPoint screenPosition

Screen position to check for widgets and features
int margin

An optional extra margin around the feature to enlarge the hit area.
Returns
Type Description
MapInfo
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GetSnapshot(IEnumerable<ILayer>?)

Create a snapshot form map as PNG image

Declaration
public byte[] GetSnapshot(IEnumerable<ILayer>? layers = null)
Parameters
Type Name Description
IEnumerable<ILayer> layers

Layers that should be included in snapshot
Returns
Type Description
byte[]

Byte array with snapshot in png format. If there are any problems than returns null.
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OnPointerMoved(PointerEventArgs)

Called before the Avalonia.Input.InputElement.PointerMoved event occurs.

Declaration
protected override void OnPointerMoved(PointerEventArgs e)
Parameters
Type Name Description
PointerEventArgs e

The event args.
Overrides
Avalonia.Input.InputElement.OnPointerMoved(Avalonia.Input.PointerEventArgs)
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OnPropertyChanged(AvaloniaPropertyChangedEventArgs)

Called when a avalonia property changes on the object.

Declaration
protected override void OnPropertyChanged(AvaloniaPropertyChangedEventArgs change)
Parameters
Type Name Description
AvaloniaPropertyChangedEventArgs change

The property change details.
Overrides
Avalonia.Controls.ContentControl.OnPropertyChanged(Avalonia.AvaloniaPropertyChangedEventArgs)
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OnPropertyChanged(string)

Declaration
protected void OnPropertyChanged(string propertyName = "")
Parameters
Type Name Description
string propertyName
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OpenBrowser(string)

Declaration
public void OpenBrowser(string url)
Parameters
Type Name Description
string url
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Refresh(ChangeType)

Declaration
public void Refresh(ChangeType changeType = ChangeType.Discrete)
Parameters
Type Name Description
ChangeType changeType
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RefreshData(ChangeType)

Refresh data of Map, but don't paint it

Declaration
public void RefreshData(ChangeType changeType = ChangeType.Discrete)
Parameters
Type Name Description
ChangeType changeType
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RefreshGraphics()

Declaration
public void RefreshGraphics()
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Render(DrawingContext)

Renders the visual to a Avalonia.Media.DrawingContext.

Declaration
public override void Render(DrawingContext context)
Parameters
Type Name Description
DrawingContext context

The drawing context.
Overrides
Avalonia.Visual.Render(Avalonia.Media.DrawingContext)
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ResetWidgetCache()

Reset the widget cache. It may be necessary to call this explicitly after the widgets have changed.

Declaration
protected void ResetWidgetCache()
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StartUpdates(bool)

Start updates for control

Declaration
public void StartUpdates(bool refresh = true)
Parameters
Type Name Description
bool refresh
Remarks

When this function is called, the control is redrawn if needed

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StopUpdates()

Stop updates for control

Declaration
public void StopUpdates()
Remarks

When this function is called, the control stops to redraw itself, even if it is needed

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ToDeviceIndependentUnits(MPoint)

Converts coordinates in pixels to device independent units (or DIP or DP).

Declaration
public MPoint ToDeviceIndependentUnits(MPoint coordinateInPixels)
Parameters
Type Name Description
MPoint coordinateInPixels

Coordinate in pixels
Returns
Type Description
MPoint

Coordinate in device independent units (or DIP or DP)
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ToPixels(MPoint)

Converts coordinates in device independent units (or DIP or DP) to pixels.

Declaration
public MPoint ToPixels(MPoint coordinateInDeviceIndependentUnits)
Parameters
Type Name Description
MPoint coordinateInDeviceIndependentUnits

Coordinate in device independent units (or DIP or DP)
Returns
Type Description
MPoint

Coordinate in pixels
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Unsubscribe()

Unsubscribe from map events

Declaration
public void Unsubscribe()

Events

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FeatureInfo

Declaration
public event EventHandler<FeatureInfoEventArgs>? FeatureInfo
Event Type
Type Description
EventHandler<FeatureInfoEventArgs>
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Info

Called whenever the map is clicked. The MapInfoEventArgs contain the features that were hit in the layers that have IsMapInfoLayer set to true.

Declaration
public event EventHandler<MapInfoEventArgs>? Info
Event Type
Type Description
EventHandler<MapInfoEventArgs>
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PropertyChanged

Called whenever a property is changed

Declaration
public event PropertyChangedEventHandler? PropertyChanged
Event Type
Type Description
PropertyChangedEventHandler

Implements

Avalonia.IDataContextProvider
Avalonia.LogicalTree.ILogical
Avalonia.Styling.IThemeVariantHost
Avalonia.Controls.IResourceHost
Avalonia.Controls.IResourceNode
Avalonia.Styling.IStyleHost
Avalonia.Controls.ISetLogicalParent
Avalonia.Controls.ISetInheritanceParent
Avalonia.Styling.IStyleable
Avalonia.Input.IInputElement
Avalonia.Controls.Templates.IDataTemplateHost
Avalonia.INamed
Avalonia.Styling.ISetterValue