Package org.mapsforge.map.rendertheme.renderinstruction

Class RenderInstruction

java.lang.Object

org.mapsforge.map.rendertheme.renderinstruction.RenderInstruction

Direct Known Subclasses:

Area, Caption, Circle, Line, LineSymbol, PathText, Symbol

public abstract class RenderInstruction
extends java.lang.Object

A RenderInstruction is a basic graphical primitive to draw a map.

Field Summary

Fields

Modifier and Type	Field	Description
protected java.lang.String	category
DisplayModel	displayModel
org.mapsforge.core.graphics.GraphicFactory	graphicFactory
protected float	height
protected int	percent
protected float	width

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	RenderInstruction(org.mapsforge.core.graphics.GraphicFactory graphicFactory, DisplayModel displayModel)

Method Summary

Modifier and Type	Method	Description
protected org.mapsforge.core.model.Rectangle	computeBoundary(int width, int height, org.mapsforge.core.graphics.Position position)
protected org.mapsforge.core.graphics.Bitmap	createBitmap(java.lang.String relativePathPrefix, java.lang.String src, XmlThemeResourceProvider resourceProvider)
abstract void	destroy()
java.lang.String	getCategory()
abstract void	renderNode(RenderCallback renderCallback, RenderContext renderContext, PointOfInterest poi)
abstract void	renderWay(RenderCallback renderCallback, RenderContext renderContext, PolylineContainer way)
protected org.mapsforge.map.rendertheme.renderinstruction.RenderInstruction.Scale	scaleFromValue(java.lang.String value)
abstract void	scaleStrokeWidth(float scaleFactor, byte zoomLevel)	Scales the stroke width of this RenderInstruction by the given factor.
abstract void	scaleTextSize(float scaleFactor, byte zoomLevel)	Scales the text size of this RenderInstruction by the given factor.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

category

protected java.lang.String category

displayModel

public final DisplayModel displayModel

graphicFactory

public final org.mapsforge.core.graphics.GraphicFactory graphicFactory

height

protected float height

percent

protected int percent

width

protected float width

Constructor Detail

RenderInstruction

protected RenderInstruction(org.mapsforge.core.graphics.GraphicFactory graphicFactory,
                            DisplayModel displayModel)

Method Detail

computeBoundary

protected org.mapsforge.core.model.Rectangle computeBoundary(int width,
                                                             int height,
                                                             org.mapsforge.core.graphics.Position position)

createBitmap

protected org.mapsforge.core.graphics.Bitmap createBitmap(java.lang.String relativePathPrefix,
                                                          java.lang.String src,
                                                          XmlThemeResourceProvider resourceProvider)
                                                   throws java.io.IOException

Throws:

java.io.IOException

destroy

public abstract void destroy()

getCategory

public java.lang.String getCategory()

renderNode

public abstract void renderNode(RenderCallback renderCallback,
                                RenderContext renderContext,
                                PointOfInterest poi)

Parameters:

renderCallback - a reference to the receiver of all render callbacks.

renderContext -

poi -

renderWay

public abstract void renderWay(RenderCallback renderCallback,
                               RenderContext renderContext,
                               PolylineContainer way)

Parameters:

renderCallback - a reference to the receiver of all render callbacks.

renderContext -

way -

scaleFromValue

protected org.mapsforge.map.rendertheme.renderinstruction.RenderInstruction.Scale scaleFromValue(java.lang.String value)

scaleStrokeWidth

public abstract void scaleStrokeWidth(float scaleFactor,
                                      byte zoomLevel)

Scales the stroke width of this RenderInstruction by the given factor.

Parameters:

scaleFactor - the factor by which the stroke width should be scaled.

scaleTextSize

public abstract void scaleTextSize(float scaleFactor,
                                   byte zoomLevel)

Scales the text size of this RenderInstruction by the given factor.

Parameters:

scaleFactor - the factor by which the text size should be scaled.