Object
- LabelPainter

```
public class LabelPainter
extends Object
```
This class performs the layouting and painting of the single label (leaving the label cache the task to sort labels and locate the best label points)

Author:

Andrea Aime

Constructor Summary

Constructors
Constructor Description

LabelPainter(Graphics2D graphics, LabelCacheImpl.LabelRenderingMode labelRenderingMode)
Builds a new painter

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`double`	`getAscent()`	The full size above the baseline
`Rectangle2D`	`getFullLabelBounds()`	Get the straight label bounds, taking into account halo, shield and line wrapping
`LabelCacheItem`	`getLabel()`	Returns the current label item
`Rectangle2D`	`getLabelBounds()`	Get the straight label bounds, without taking into account halo and shield
`int`	`getLineCount()`	Number of lines for this label (more than 1 if the label has embedded newlines or if we're auto-wrapping it)
`double`	`getLineHeight()`	Returns the line height for this label in pixels (for multiline labels, it's the height of the first line)
`double`	`getLineHeightForAnchorY(double anchorY)`	Returns appropriate line height for the given displacemntY Should give Top line for max displacementY (1) and Bottom line for min displacemntY (0)
`double`	`getLinePlacementYAnchor()`	Vertical centering is not trivial, because visually we want centering on characters such as a,m,e, and not centering on d,g whose center is affected by the full ascent or the full descent.
`int`	`getStraightLabelWidth()`	Returns the width of the label, as painted in straight form (
`void`	`paintCurvedLabel(LineStringCursor cursor)`	Paints a label that follows the line, centered in the current cursor position
`void`	`paintStraightLabel(AffineTransform transform)`	Paints the label as a non curved one.
`void`	`paintStraightLabel(AffineTransform transform, Coordinate labelPoint)`	Paints the label as a non curved one.
`void`	`setLabel(LabelCacheItem labelItem)`	Sets the current label.

Methods inherited from class Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - LabelPainter
```
public LabelPainter(Graphics2D graphics,
                    LabelCacheImpl.LabelRenderingMode labelRenderingMode)
```
    Builds a new painter
- Method Detail
  - setLabel
```
public void setLabel(LabelCacheItem labelItem)
```
    Sets the current label. The label will be laid out according to the label item settings (curved lines, auto wrapping, curved line usage) and the painter will be ready to draw it.
  - getLabel
```
public LabelCacheItem getLabel()
```
    Returns the current label item
  - getLineHeight
```
public double getLineHeight()
```
    Returns the line height for this label in pixels (for multiline labels, it's the height of the first line)
  - getLineHeightForAnchorY
```
public double getLineHeightForAnchorY(double anchorY)
```
    Returns appropriate line height for the given displacemntY Should give Top line for max displacementY (1) and Bottom line for min displacemntY (0)
    
    Returns:
    
    height of appropriate line for passed label displacementY
  - getAscent
```
public double getAscent()
```
    The full size above the baseline
  - getStraightLabelWidth
```
public int getStraightLabelWidth()
```
    Returns the width of the label, as painted in straight form (
  - getLineCount
```
public int getLineCount()
```
    Number of lines for this label (more than 1 if the label has embedded newlines or if we're auto-wrapping it)
  - getFullLabelBounds
```
public Rectangle2D getFullLabelBounds()
```
    Get the straight label bounds, taking into account halo, shield and line wrapping
  - getLabelBounds
```
public Rectangle2D getLabelBounds()
```
    Get the straight label bounds, without taking into account halo and shield
  - paintStraightLabel
```
public void paintStraightLabel(AffineTransform transform)
                        throws Exception
```
    Paints the label as a non curved one. The positioning and rotation are provided by the transformation
    
    Throws:
    
    Exception
  - paintStraightLabel
```
public void paintStraightLabel(AffineTransform transform,
                               Coordinate labelPoint)
                        throws Exception
```
    Paints the label as a non curved one. The positioning and rotation are provided by the transformation
    
    Throws:
    
    Exception
  - paintCurvedLabel
```
public void paintCurvedLabel(LineStringCursor cursor)
```
    Paints a label that follows the line, centered in the current cursor position
  - getLinePlacementYAnchor
```
public double getLinePlacementYAnchor()
```
    Vertical centering is not trivial, because visually we want centering on characters such as a,m,e, and not centering on d,g whose center is affected by the full ascent or the full descent. This method tries to computes the y anchor taking into account those.

Class LabelPainter

Constructor Summary

Method Summary

Methods inherited from class Object

Constructor Detail

LabelPainter

Method Detail

setLabel

getLabel

getLineHeight

getLineHeightForAnchorY

getAscent

getStraightLabelWidth

getLineCount

getFullLabelBounds

getLabelBounds

paintStraightLabel

paintStraightLabel

paintCurvedLabel

getLinePlacementYAnchor