de.number42.subsampling_pdf_decoder

Class PDFRegionDecoder

java.lang.Object

de.number42.subsampling_pdf_decoder.PDFRegionDecoder

public class PDFRegionDecoder
extends java.lang.Object

Decodes and renders a given rect out of a PdfRenderer.Page into a Bitmap

Constructor Summary

Constructors

Constructor and Description
PDFRegionDecoder(int position, java.io.File file, float scale) basic constructor for PDFDecoder.

Method Summary

Modifier and Type	Method and Description
android.graphics.Bitmap	decodeRegion(android.graphics.Rect rect, int sampleSize) Creates a Bitmap in the correct size and renders the region defined by rect of the PdfRenderer.Page into it.
android.graphics.Point	init(android.content.Context context, android.net.Uri uri) Initializes the region decoder.
boolean	isReady()
void	recycle() close everything

Methods inherited from class java.lang.Object

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

Constructor Detail

PDFRegionDecoder

public PDFRegionDecoder(int position,
                        java.io.File file,
                        float scale)

basic constructor for PDFDecoder.

Parameters:

scale: - the scale factor

Method Detail

init

public android.graphics.Point init(android.content.Context context,
                                   android.net.Uri uri)
                            throws java.lang.Exception

Initializes the region decoder. This method initializes

Parameters:

context - not used here

uri - not used here (file is already loaded)

Returns:

the rescaled point

Throws:

java.lang.Exception

decodeRegion

public android.graphics.Bitmap decodeRegion(android.graphics.Rect rect,
                                            int sampleSize)

Creates a Bitmap in the correct size and renders the region defined by rect of the PdfRenderer.Page into it.

Parameters:

rect - the rect of the PdfRenderer.Page to be rendered to the bitmap

sampleSize - the sample size

Returns:

a bitmap containing the rendered rect of the page

isReady

public boolean isReady()

recycle

public void recycle()

close everything