Yahoo! UI Library

charts  3.3.0

Yahoo! UI Library > charts > TopAxisLayout
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Class TopAxisLayout

Contains algorithms for rendering a top axis.

Constructor

TopAxisLayout ( )

Methods

drawTick

protected void drawTick ( pt , tickStyles )
Draws a tick
Parameters:
pt <Object> hash containing x and y coordinates
tickStyles <Object> hash of properties used to draw the tick

getLabelPoint

protected getLabelPoint ( pt )
Calculates the point for a label.
Parameters:
pt <Object> hash containing x and y coordinates
Returns:
Object

getLineStart

protected void getLineStart ( )
Calculates the coordinates for the first point on an axis.

offsetNodeForTick

protected void offsetNodeForTick ( cb )
Adjusts position for inner ticks.
Parameters:
cb <Node> contentBox of the axis

positionLabel

protected void positionLabel ( label , pt )
Rotate and position labels.
Parameters:
label <HTMLElement> to rotate position
pt <Object> hash containing the x and y coordinates in which the label will be positioned against.

setCalculatedSize

protected void setCalculatedSize ( )
Assigns a height based on the size of the contents.

setSizeAndPosition

protected void setSizeAndPosition ( )
Calculates the size and positions the content elements.

setTickOffsets

protected void setTickOffsets ( )
Sets the length of the tick on either side of the axis line.

updateMaxLabelSize

protected void updateMaxLabelSize ( label )
Updates the value for the maxLabelSize for use in calculating total size.
Parameters:
label <HTMLElement> to measure

Events

axisRendererChange

axisRendererChange ( event )
Fires when the value for the configuration attribute 'axisRenderer' is changed. You can listen for the event using the on method if you wish to be notified before the attribute's value has changed, or using the after method if you wish to be notified after the attribute's value has changed.
Parameters:
event <Event.Facade> An Event Facade object with the following attribute specific properties added:
prevVal
The value of the attribute, prior to it being set
newVal
The value the attribute is to be set to
attrName
The name of the attribute being set
subAttrName
If setting a property within the attribute's value, the name of the sub-attribute property being set

maxLabelSizeChange

maxLabelSizeChange ( event )
Fires when the value for the configuration attribute 'maxLabelSize' is changed. You can listen for the event using the on method if you wish to be notified before the attribute's value has changed, or using the after method if you wish to be notified after the attribute's value has changed.
Parameters:
event <Event.Facade> An Event Facade object with the following attribute specific properties added:
prevVal
The value of the attribute, prior to it being set
newVal
The value the attribute is to be set to
attrName
The name of the attribute being set
subAttrName
If setting a property within the attribute's value, the name of the sub-attribute property being set

Configuration Attributes

axisRenderer - protected Axis

Reference to the Axis using the strategy.

maxLabelSize - protected Number

Length in pixels of largest text bounding box. Used to calculate the height of the axis.

Configuration Attributes

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