LayerTileView¶
Namespace: ThinkGeo.UI.Maui
Represents a tile view that renders one or more layers onto a canvas-backed image.
public class LayerTileView : CanvasTileView, System.ComponentModel.INotifyPropertyChanged, Microsoft.Maui.Controls.Internals.IDynamicResourceHandler, Microsoft.Maui.Controls.IElementDefinition, Microsoft.Maui.Controls.Internals.INameScope, Microsoft.Maui.Controls.IElementController, Microsoft.Maui.IVisualTreeElement, Microsoft.Maui.IElement, Microsoft.Maui.Controls.IEffectControlProvider, Microsoft.Maui.IToolTipElement, Microsoft.Maui.IContextFlyoutElement, Microsoft.Maui.Controls.IControlsElement, Microsoft.Maui.IHandlerDisconnectPolicies, Microsoft.Maui.Controls.StyleSheets.IStyleSelectable, Microsoft.Maui.Controls.Internals.INavigationProxy, Microsoft.Maui.Controls.IAnimatable, Microsoft.Maui.Controls.IVisualElementController, Microsoft.Maui.Controls.IResourcesProvider, Microsoft.Maui.Controls.IStyleElement, Microsoft.Maui.Controls.IFlowDirectionController, Microsoft.Maui.Controls.IPropertyPropagationController, Microsoft.Maui.Controls.IVisualController, Microsoft.Maui.Controls.IWindowController, Microsoft.Maui.IView, Microsoft.Maui.ITransform, Microsoft.Maui.Controls.IControlsVisualElement, Microsoft.Maui.IConstrainedView, Microsoft.Maui.Controls.StyleSheets.IStylable, Microsoft.Maui.Controls.IViewController, Microsoft.Maui.Controls.Internals.IGestureController, Microsoft.Maui.Controls.IGestureRecognizers, Microsoft.Maui.IPropertyMapperView, Microsoft.Maui.HotReload.IHotReloadableView, Microsoft.Maui.IReplaceableView, Microsoft.Maui.Controls.IControlsView, Microsoft.Maui.Controls.IImageController, Microsoft.Maui.Controls.IElementConfiguration`1[[Microsoft.Maui.Controls.Image, Microsoft.Maui.Controls, Version=10.0.0.0, Culture=neutral, PublicKeyToken=null]], Microsoft.Maui.Controls.IImageElement, Microsoft.Maui.IImage, Microsoft.Maui.IImageSourcePart, System.IDisposable
Inheritance object → BindableObject → Element → StyleableElement → NavigableElement → VisualElement → View → Image → TileView → CanvasTileView → LayerTileView
Implements INotifyPropertyChanged, IDynamicResourceHandler, IElementDefinition, INameScope, IElementController, IVisualTreeElement, IElement, IEffectControlProvider, IToolTipElement, IContextFlyoutElement, IControlsElement, IHandlerDisconnectPolicies, IStyleSelectable, INavigationProxy, IAnimatable, IVisualElementController, IResourcesProvider, IStyleElement, IFlowDirectionController, IPropertyPropagationController, IVisualController, IWindowController, IView, ITransform, IControlsVisualElement, IConstrainedView, IStylable, IViewController, IGestureController, IGestureRecognizers, IPropertyMapperView, IHotReloadableView, IReplaceableView, IControlsView, IImageController, IElementConfiguration<Image>, IImageElement, IImage, IImageSourcePart, IDisposable
Fields¶
NameProperty¶
Identifies the LayerTileView.Name bindable property.
public static BindableProperty NameProperty;
transientNamescope¶
public INameScope transientNamescope;
Properties¶
Name¶
Gets or sets the logical name of the tile, which can be used for diagnostics or styling.
public string Name { get; set; }
Property Value¶
DrawingLayers¶
This property gets a collection that are ready for drawing.
public Collection<LayerBase> DrawingLayers { get; }
Property Value¶
DrawingExceptionMode¶
Gets or sets how to specify the exception in current drawing process.
public DrawingExceptionMode DrawingExceptionMode { get; set; }
Property Value¶
DrawingExceptionMode
Exception¶
User can set the customer exception, and we can paint that.
public Exception Exception { get; protected set; }
Property Value¶
BoundingBox¶
Gets or sets an extent that uses for drawing.
public RectangleShape BoundingBox { get; set; }
Property Value¶
RectangleShape
RowIndex¶
Gets or sets tile's row index in tile overlay.
public long RowIndex { get; set; }
Property Value¶
ColumnIndex¶
Gets or sets tile's column index in tile overlay.
public long ColumnIndex { get; set; }
Property Value¶
ZoomLevelIndex¶
Gets or sets current level index in the ZoomLevelSet.
public int ZoomLevelIndex { get; set; }
Property Value¶
Aspect¶
public Aspect Aspect { get; set; }
Property Value¶
IsLoading¶
public bool IsLoading { get; }
Property Value¶
IsOpaque¶
public bool IsOpaque { get; set; }
Property Value¶
IsAnimationPlaying¶
public bool IsAnimationPlaying { get; set; }
Property Value¶
Source¶
public ImageSource Source { get; set; }
Property Value¶
GestureRecognizers¶
public IList<IGestureRecognizer> GestureRecognizers { get; }
Property Value¶
HorizontalOptions¶
public LayoutOptions HorizontalOptions { get; set; }
Property Value¶
Margin¶
public Thickness Margin { get; set; }
Property Value¶
VerticalOptions¶
public LayoutOptions VerticalOptions { get; set; }
Property Value¶
Visual¶
public IVisual Visual { get; set; }
Property Value¶
FlowDirection¶
public FlowDirection FlowDirection { get; set; }
Property Value¶
Window¶
public Window Window { get; }
Property Value¶
AnchorX¶
public double AnchorX { get; set; }
Property Value¶
AnchorY¶
public double AnchorY { get; set; }
Property Value¶
BackgroundColor¶
public Color BackgroundColor { get; set; }
Property Value¶
Background¶
public Brush Background { get; set; }
Property Value¶
Behaviors¶
public IList<Behavior> Behaviors { get; }
Property Value¶
Bounds¶
public Rect Bounds { get; }
Property Value¶
Height¶
public double Height { get; }
Property Value¶
HeightRequest¶
public double HeightRequest { get; set; }
Property Value¶
InputTransparent¶
public bool InputTransparent { get; set; }
Property Value¶
IsEnabled¶
public bool IsEnabled { get; set; }
Property Value¶
IsFocused¶
public bool IsFocused { get; }
Property Value¶
IsVisible¶
public bool IsVisible { get; set; }
Property Value¶
MinimumHeightRequest¶
public double MinimumHeightRequest { get; set; }
Property Value¶
MinimumWidthRequest¶
public double MinimumWidthRequest { get; set; }
Property Value¶
MaximumHeightRequest¶
public double MaximumHeightRequest { get; set; }
Property Value¶
MaximumWidthRequest¶
public double MaximumWidthRequest { get; set; }
Property Value¶
Opacity¶
public double Opacity { get; set; }
Property Value¶
Rotation¶
public double Rotation { get; set; }
Property Value¶
RotationX¶
public double RotationX { get; set; }
Property Value¶
RotationY¶
public double RotationY { get; set; }
Property Value¶
Scale¶
public double Scale { get; set; }
Property Value¶
ScaleX¶
public double ScaleX { get; set; }
Property Value¶
ScaleY¶
public double ScaleY { get; set; }
Property Value¶
TranslationX¶
public double TranslationX { get; set; }
Property Value¶
TranslationY¶
public double TranslationY { get; set; }
Property Value¶
Triggers¶
public IList<TriggerBase> Triggers { get; }
Property Value¶
Width¶
public double Width { get; }
Property Value¶
WidthRequest¶
public double WidthRequest { get; set; }
Property Value¶
X¶
public double X { get; }
Property Value¶
Y¶
public double Y { get; }
Property Value¶
Clip¶
public Geometry Clip { get; set; }
Property Value¶
Batched¶
public bool Batched { get; }
Property Value¶
DisableLayout¶
public bool DisableLayout { get; set; }
Property Value¶
IsInPlatformLayout¶
public bool IsInPlatformLayout { get; set; }
Property Value¶
IsPlatformStateConsistent¶
public bool IsPlatformStateConsistent { get; set; }
Property Value¶
IsPlatformEnabled¶
public bool IsPlatformEnabled { get; set; }
Property Value¶
Resources¶
public ResourceDictionary Resources { get; set; }
Property Value¶
Frame¶
public Rect Frame { get; set; }
Property Value¶
Handler¶
public IViewHandler Handler { get; set; }
Property Value¶
Shadow¶
public Shadow Shadow { get; set; }
Property Value¶
ZIndex¶
public int ZIndex { get; set; }
Property Value¶
DesiredSize¶
public Size DesiredSize { get; protected set; }
Property Value¶
IsLoaded¶
public bool IsLoaded { get; }
Property Value¶
Navigation¶
public INavigation Navigation { get; internal set; }
Property Value¶
NavigationProxy¶
public NavigationProxy NavigationProxy { get; }
Property Value¶
Style¶
public Style Style { get; set; }
Property Value¶
StyleClass¶
public IList<string> StyleClass { get; set; }
Property Value¶
class¶
public IList<string> class { get; set; }
Property Value¶
AutomationId¶
public string AutomationId { get; set; }
Property Value¶
ClassId¶
public string ClassId { get; set; }
Property Value¶
Effects¶
public IList<Effect> Effects { get; }
Property Value¶
Id¶
public Guid Id { get; }
Property Value¶
StyleId¶
public string StyleId { get; set; }
Property Value¶
LogicalChildren¶
public ReadOnlyCollection<Element> LogicalChildren { get; }
Property Value¶
RealParent¶
public Element RealParent { get; }
Property Value¶
Parent¶
public Element Parent { get; set; }
Property Value¶
EffectControlProvider¶
public IEffectControlProvider EffectControlProvider { get; set; }
Property Value¶
Handler¶
public IElementHandler Handler { get; set; }
Property Value¶
Dispatcher¶
public IDispatcher Dispatcher { get; }
Property Value¶
BindingContext¶
public object BindingContext { get; set; }
Property Value¶
Constructors¶
LayerTileView()¶
Constructor of LayerTileView class.
public LayerTileView()
LayerTileView(IEnumerable<LayerBase>)¶
Constructor of LayerTileView class.
public LayerTileView(IEnumerable<LayerBase> layers)
Parameters¶
layers IEnumerable<LayerBase>
Methods¶
tCM=(Dictionary<string, Collection<Feature>>)¶
internal void tCM=(Dictionary<string, Collection<Feature>> features)
Parameters¶
features Dictionary<string, Collection<Feature>>
Returns¶
OnPosted(PostedTileViewEventArgs)¶
protected void OnPosted(PostedTileViewEventArgs args)
Parameters¶
Returns¶
DrawAsyncCore(GeoCanvas)¶
This method draws the image for the tile.
protected Task DrawAsyncCore(GeoCanvas geoCanvas)
Parameters¶
geoCanvas GeoCanvas
This parameter is the canvas object to draw on.
Returns¶
Remarks:
When implementing this abstract method, consider if the IsAsync property. If yes, draw it in background thread; If no, draw it directly with the properties we provided.
Events¶
Drawing¶
This is an event raises before the tile is drawing.
public event EventHandler<DrawingTileViewEventArgs> Drawing;
Posted¶
This is an event raises after the tile is drawn.
public event EventHandler<PostedTileViewEventArgs> Posted;
ChildrenReordered¶
public event EventHandler ChildrenReordered;
Focused¶
public event EventHandler<FocusEventArgs> Focused;
MeasureInvalidated¶
public event EventHandler MeasureInvalidated;
SizeChanged¶
public event EventHandler SizeChanged;
Unfocused¶
public event EventHandler<FocusEventArgs> Unfocused;
BatchCommitted¶
public event EventHandler<EventArg<VisualElement>> BatchCommitted;
FocusChangeRequested¶
public event EventHandler<FocusRequestArgs> FocusChangeRequested;
Loaded¶
public event EventHandler Loaded;
Unloaded¶
public event EventHandler Unloaded;
ChildAdded¶
public event EventHandler<ElementEventArgs> ChildAdded;
ChildRemoved¶
public event EventHandler<ElementEventArgs> ChildRemoved;
DescendantAdded¶
public event EventHandler<ElementEventArgs> DescendantAdded;
DescendantRemoved¶
public event EventHandler<ElementEventArgs> DescendantRemoved;
ParentChanging¶
public event EventHandler<ParentChangingEventArgs> ParentChanging;
ParentChanged¶
public event EventHandler ParentChanged;
HandlerChanging¶
public event EventHandler<HandlerChangingEventArgs> HandlerChanging;
HandlerChanged¶
public event EventHandler HandlerChanged;
PropertyChanged¶
public event PropertyChangedEventHandler PropertyChanged;
PropertyChanging¶
public event PropertyChangingEventHandler PropertyChanging;
BindingContextChanged¶
public event EventHandler BindingContextChanged;