Package org.oscim.backend

Class CanvasAdapter

java.lang.Object

org.oscim.backend.CanvasAdapter

public abstract class CanvasAdapter
extends Object

The Class CanvasAdapter.

Field Summary

Fields

Modifier and Type	Field	Description
static final float	DEFAULT_DPI	Default dpi.
static float	dpi	The dpi.
static float	lineScale	The line scale.
static Platform	platform	The used platform.
static final String	PREFIX_FILE
static float	symbolScale	The symbol scale.
static float	textScale	The text scale.
static float	userScale	The user scale.

Constructor Summary

Constructors

Constructor	Description
CanvasAdapter()

Method Summary

Modifier and Type	Method	Description
protected static Bitmap	createBitmap(String relativePathPrefix, String src, XmlThemeResourceProvider resourceProvider, int width, int height, int percent)
static Bitmap	decodeBitmap(InputStream inputStream)
static Bitmap	decodeBitmap(InputStream inputStream, int width, int height, int percent)
protected abstract Bitmap	decodeBitmapImpl(InputStream inputStream)	Create Bitmap from InputStream.
protected abstract Bitmap	decodeBitmapImpl(InputStream inputStream, int width, int height, int percent)	Create Bitmap from InputStream.
static Bitmap	decodeSvgBitmap(InputStream inputStream, int width, int height, int percent)
protected abstract Bitmap	decodeSvgBitmapImpl(InputStream inputStream, int width, int height, int percent)	Create SVG Bitmap from InputStream.
static File	getAbsoluteFile(String parentPath, String pathName)
static Bitmap	getBitmapAsset(String relativePathPrefix, String src)
static Bitmap	getBitmapAsset(String relativePathPrefix, String src, XmlThemeResourceProvider resourceProvider, int width, int height, int percent)
static float	getDeviceScale()
static float	getScale()
protected static void	init(CanvasAdapter adapter)
protected abstract Bitmap	loadBitmapAssetImpl(String relativePathPrefix, String src, XmlThemeResourceProvider resourceProvider, int width, int height, int percent)	Create Bitmap from bundled assets.
static Bitmap	newBitmap(int width, int height, int format)
protected abstract Bitmap	newBitmapImpl(int width, int height, int format)	Create Bitmap with given dimensions.
static Canvas	newCanvas()
protected abstract Canvas	newCanvasImpl()	Create a Canvas.
static Paint	newPaint()
protected abstract Paint	newPaintImpl()	Create Paint.

Methods inherited from class java.lang.Object

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

Field Details

PREFIX_FILE

public static final String PREFIX_FILE

See Also:

• Constant Field Values

DEFAULT_DPI

public static final float DEFAULT_DPI

Default dpi.

See Also:

• Constant Field Values

dpi

public static float dpi

The dpi.

platform

public static Platform platform

The used platform.

lineScale

public static float lineScale

The line scale.

symbolScale

public static float symbolScale

The symbol scale.

textScale

public static float textScale

The text scale.

userScale

public static float userScale

The user scale.

Constructor Details

CanvasAdapter

public CanvasAdapter()

Method Details

newCanvasImpl

protected abstract Canvas newCanvasImpl()

Create a Canvas.

Returns:

the canvas

newCanvas

public static Canvas newCanvas()

newPaintImpl

protected abstract Paint newPaintImpl()

Create Paint.

Returns:

the paint

newPaint

public static Paint newPaint()

newBitmapImpl

protected abstract Bitmap newBitmapImpl(int width,
 int height,
 int format)

Create Bitmap with given dimensions.

Parameters:

width - the width

height - the height

format - the format

Returns:

the bitmap

newBitmap

public static Bitmap newBitmap(int width,
 int height,
 int format)

decodeBitmapImpl

protected abstract Bitmap decodeBitmapImpl(InputStream inputStream)
                                    throws IOException

Create Bitmap from InputStream.

Parameters:

inputStream - the input stream

Returns:

the bitmap

Throws:

IOException

decodeBitmapImpl

protected abstract Bitmap decodeBitmapImpl(InputStream inputStream,
 int width,
 int height,
 int percent)
                                    throws IOException

Create Bitmap from InputStream.

Parameters:

inputStream - the input stream

width - requested width (0: no change)

height - requested height (0: no change)

percent - requested scale percent (100: no change)

Returns:

the bitmap

Throws:

IOException

decodeBitmap

public static Bitmap decodeBitmap(InputStream inputStream)
                           throws IOException

Throws:

IOException

decodeBitmap

public static Bitmap decodeBitmap(InputStream inputStream,
 int width,
 int height,
 int percent)
                           throws IOException

Throws:

IOException

decodeSvgBitmapImpl

protected abstract Bitmap decodeSvgBitmapImpl(InputStream inputStream,
 int width,
 int height,
 int percent)
                                       throws IOException

Create SVG Bitmap from InputStream.

Parameters:

inputStream - the input stream

Returns:

the SVG bitmap

Throws:

IOException

decodeSvgBitmap

public static Bitmap decodeSvgBitmap(InputStream inputStream,
 int width,
 int height,
 int percent)
                              throws IOException

Throws:

IOException

loadBitmapAssetImpl

protected abstract Bitmap loadBitmapAssetImpl(String relativePathPrefix,
 String src,
 XmlThemeResourceProvider resourceProvider,
 int width,
 int height,
 int percent)
                                       throws IOException

Create Bitmap from bundled assets.

Parameters:

relativePathPrefix - the prefix for relative resource path

src - the resource

Returns:

the bitmap

Throws:

IOException

getBitmapAsset

public static Bitmap getBitmapAsset(String relativePathPrefix,
 String src)
                             throws IOException

Throws:

IOException

getBitmapAsset

public static Bitmap getBitmapAsset(String relativePathPrefix,
 String src,
 XmlThemeResourceProvider resourceProvider,
 int width,
 int height,
 int percent)
                             throws IOException

Throws:

IOException

createBitmap

protected static Bitmap createBitmap(String relativePathPrefix,
 String src,
 XmlThemeResourceProvider resourceProvider,
 int width,
 int height,
 int percent)
                              throws IOException

Throws:

IOException

getAbsoluteFile

public static File getAbsoluteFile(String parentPath,
 String pathName)

getDeviceScale

public static float getDeviceScale()

getScale

public static float getScale()

init

protected static void init(CanvasAdapter adapter)