Default renderer implementation for BezierEdgeStyle
Type Details
- yfiles module
- styles-other
- yfiles-umd modules
- All view modules
- Legacy UMD name
- yfiles.styles.BezierEdgeStyleRenderer
Properties
Overridden to always return false, since no bridges can be added in a meainingful way to a bezier path.
Remarks
See Also
Overrides
Gets or sets the currently configured edge.
Defined in
Gets or sets the distance between the node's layout and its self loop control points.
Defined in
Gets or sets the policy with which smoothing is applied to the path when getSmoothingLength returns a value larger than 0.
Gets or sets a value indicating whether the first and last segments of the path should always begin and end with a straight line segment, respectively.
Remarks
Given high enough values for getSmoothingLength, the first and last segments may become completely curved. This property prevents this from happening, e.g. to prevent arrowheads from colliding with the smoothed edge path.
The default value is false.
Defined in
Gets or sets the currently configured style.
Defined in
Methods
Prepares this instance for subsequent calls after the style and edge have been initialized.
Remarks
Upon invocation the style and edge properties have been populated by the getVisualCreator, getBoundsProvider, getHitTestable, or getMarqueeTestable methods.
Subclasses which override this method have to call the base implementation, first.
Defined in
Converts the edge bends into a cubic bezier path.
Remarks
- If there are only two control points (i.e. just source and target port and no bends), a straight line is rendered
- Otherwise: the number of control points is internally padded to be 1 (mod 3) by duplicating the target port location, if necessary
- Consecutive 4-tuples of control points describe a cubic segment of the path
- Each consecutive pair of 4-tuples share their last resp. first control point.
- Control points are not automatically aligned to form smooth connections between segments.
Returns
- ↪GeneralPath
- A path that has to be cropped, yet.
See Also
Implements
Special implementation that will create a self loop path.
Remarks
Parameters
A map of options to pass to the method.
- roundSelfLoop - boolean
- Whether to create a round self loop path. If
falsea rectangular path will be created.
Returns
- ↪GeneralPath
- A path for a self loop.
See Also
Defined in
This method is called by the framework to create a Visual that will be included into the IRenderContext.
Remarks
Parameters
A map of options to pass to the method.
- context - IRenderContext
- The context that describes where the visual will be used.
Returns
- ↪Visual
- The visual to include in the canvas object visual tree. This may be
null.
See Also
Implements
Crops the edge's path at the nodes.
Remarks
Parameters
A map of options to pass to the method.
- path - GeneralPath
- The path that should be cropped.
Returns
- ↪GeneralPath
- The cropped path. This is can be either the same instance of the given path or a newly created instance.
See Also
Defined in
Returns a tight rectangular area where the whole rendering would fit into.
Remarks
Parameters
A map of options to pass to the method.
- context - ICanvasContext
- the context to calculate the bounds for
Returns
Overrides
Configures the style and edge parameters, calls configure and returns this.
Parameters
A map of options to pass to the method.
- edge - IEdge
- The edge to retrieve the bounds provider for. The value will be stored in the edge property.
- style - IEdgeStyle
- The style to associate with the edge. The value will be stored in the style property.
Returns
- ↪IBoundsProvider
this
See Also
Implements
Yields the IBridgeCreator to use for adding bridges to the created path.
Remarks
null) will be passed to the BridgeManager's addBridges method.Returns
- ↪IBridgeCreator
- This implementation returns
null.
Defined in
Configures the style and edge parameters, does not call configure and returns this.
Remarks
this or an instance that depends on a correctly configured this.Parameters
A map of options to pass to the method.
- edge - IEdge
- The edge to query the context for. The value will be stored in the edge property.
- style - IEdgeStyle
- The style to associate with the edge. The value will be stored in the style property.
Returns
- ↪ILookup
this
See Also
Implements
Gets the CSS class that will be applied to the edge visualization.
Remarks
Returns
- ↪string
- The CSS class that is currently used by this renderer.
Overrides
Configures the style and edge parameters and returns this.
Remarks
null value.Parameters
A map of options to pass to the method.
- edge - IEdge
- The edge to provide an instance for
- style - IEdgeStyle
- The style to use for the querying hit tests
Returns
- ↪IHitTestable
- An implementation that may be used to subsequently perform hit tests. Clients should not cache this instance and must always call this method immediately before using the value returned. This enables the use of the flyweight design pattern for implementations. This method may return
nullto indicate that the edge cannot be hit tested.
See Also
Implements
Configures the style and edge parameters, calls configure and returns this.
Parameters
A map of options to pass to the method.
- edge - IEdge
- The edge to query marquee intersection tests. The value will be stored in the edge property.
- style - IEdgeStyle
- The style to associate with the edge. The value will be stored in the style property.
Returns
- ↪IMarqueeTestable
this
See Also
Implements
Returns createPath unless isVisible yields false for the provided context and clip.
Parameters
A map of options to pass to the method.
- context - IRenderContext
- The context to yield the obstacles for.
Returns
- ↪GeneralPath
- Either
nullor the result of createPath.
See Also
Implements
Returns a representation of the visible path of the edge in form of a GeneralPath
Returns
- ↪GeneralPath
- An instance that describes the visible path or
nullif this is not applicable for the current geometry.
Implements
Gets an implementation of the IPathGeometry interface that can handle the provided edge and its associated style.
Parameters
A map of options to pass to the method.
- edge - IEdge
- The edge to provide an instance for
- style - IEdgeStyle
- The style to use for the painting
Returns
- ↪IPathGeometry
this
See Also
Implements
Returns the number of line, cubic and close operations in the renderer's path
Returns
- ↪number
- The number of line, cubic and close operations in the renderer's path, or 0 if no path exists.
See Also
Implements
Gets the value that determines the radius of the smoothing arcs that can be added to the path at the bends.
Remarks
0.0d, which effectively turns off path smoothing.Returns
- ↪number
- The radius of the arcs to use at the bends of the path.
Defined in
Gets the source arrow from the style.
Gets the Stroke to use to render the path.
Calculates the tangent on the edge's path at the given ratio point.
Remarks
Parameters
A map of options to pass to the method.
- ratio - number
- a value in [0,1] where 0 is the source's end and 1 is at the target's end of the visible edge path
Returns
- ↪Tangent
- The tangential line, if any exists.
See Also
Implements
Calculates the tangent on the edge's path at the given ratio point for the given segment.
Remarks
Parameters
A map of options to pass to the method.
- segmentIndex - number
- the segment to use for the calculation
- ratio - number
- a value in [0,1] where 0 is the source's end and 1 is at the target's end of the segment
Returns
- ↪Tangent
- The tangential line, if any exists.
See Also
Implements
Gets the target arrow from the style.
Configures the style and edge parameters, does not call configure and returns this.
Remarks
Configure in isVisible.Parameters
A map of options to pass to the method.
- edge - IEdge
- The edge to query visibility tests. The value will be stored in the edge property.
- style - IEdgeStyle
- The style to associate with the edge. The value will be stored in the style property.
Returns
- ↪IVisibilityTestable
this
See Also
Implements
Configures the style and edge parameters, calls configure and returns this.
Parameters
A map of options to pass to the method.
- edge - IEdge
- The edge to retrieve the IVisualCreator for. The value will be stored in the edge property.
- style - IEdgeStyle
- The style to associate with the edge. The value will be stored in the style property.
Returns
- ↪IVisualCreator
this
See Also
Implements
This method is overridden for performance reasons.
Remarks
This implementation uses isVisible as an early exit indicator. If isVisible returns false for a certain rectangle, the instance will not be configured but a non-hit will be assumed. Otherwise this instance will be configured and the standard path based hit test routine
Subclasses should not depend on the fact that configure has already been called. This may not be the case. If your subclass depends on Configure being called, override getHitTestable and call configure after the base class call.
Parameters
A map of options to pass to the method.
- context - IInputModeContext
- the context the hit test is performed in
- location - Point
- the coordinates in world coordinate system
Returns
- ↪boolean
- whether something has been hit
See Also
Overrides
Returns true if the corresponding item is considered to intersect the given rectangular box.
Remarks
This method may return false if the item cannot be selected using a selection marquee or optionally if the item is only partially contained within the box.
Implementations should respect the hitTestRadius if marquee selections should behave differently on different zoom levels.
Parameters
A map of options to pass to the method.
- context - IInputModeContext
- the current input mode context
- rectangle - Rect
- the box describing the marquee's bounds
Returns
- ↪boolean
trueif the item is considered to be captured by the marquee
Implements
Returns true if the corresponding item is considered to intersect the given path.
Remarks
This method may return false if the item cannot be selected using a lasso selection or optionally if the item is only partially contained within the path.
Implementations should respect the hitTestRadius if lasso selections should behave differently on different zoom levels.
Parameters
A map of options to pass to the method.
- context - IInputModeContext
- the current input mode context
- path - GeneralPath
- the path describing the lasso selection bounds
Returns
- ↪boolean
trueif the item is considered to be captured by the lasso
Implements
Calls configure and test the edge using the style for a visible intersection with the clip bounds.
Remarks
Parameters
A map of options to pass to the method.
- context - ICanvasContext
- the current canvas context
- rectangle - Rect
- the clip bounds
Returns
- ↪boolean
trueif the edge may be painted within the clip bounds.
See Also
Overrides
Returns an instance that implements the given type or null.
Remarks
null implementations for the types, nor does it have to return the same instance any time. Also it depends on the type and context whether the instance returned stays up to date or needs to be reobtained for subsequent use.Type Parameters
- T: any
Parameters
A map of options to pass to the method.
- type - Class<T>
- The type for which an instance shall be returned.
Returns
- ↪T
- an instance that is assignable to type or
null
See Also
Overrides
This method updates or replaces a previously created Visual for inclusion in the IRenderContext.
Remarks
The CanvasComponent uses this method to give implementations a chance to update an existing Visual that has previously been created by the same instance during a call to createVisual. Implementation may update the oldVisual and return that same reference, or create a new visual and return the new instance or null.
I most cases oldVisual is a visual instance that has been returned by the createVisual method of this instance. This is, however, not guaranteed. Implementations have to be aware of this.
Parameters
A map of options to pass to the method.
- context - IRenderContext
- The context that describes where the visual will be used in.
- oldVisual - Visual
- The visual instance to be updated.
Returns
- ↪Visual
oldVisual, if this instance modified the visual, or a new visual that should replace the existing one in the canvas object visual tree.
See Also
Implements
Fields
The path instance that this instance is working with.