Android Open Source - RadaeePDF-B4A P D F Simple

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Back to project page RadaeePDF-B4A.

License

The source code is released under:

Apache License

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Java Source Code

package com.radaee.reader;
/*from ww  w.  j  a v  a  2s  . c o  m*/
import com.radaee.pdf.*;
import com.radaee.util.PDFFileStream;

import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.Canvas;
import android.graphics.Bitmap.Config;
import android.util.AttributeSet;
import android.view.View;

/**
 * simplest PDF sample.
 * @author radaee
 */
public class PDFSimple extends View
{
  private Document m_doc = null;
  private PDFFileStream m_stream = null;
  private float m_ratio = 1;
  private int m_pageno = 0;
  private int win_cx = 0;
  private int win_cy = 0;
  private int page_x = 0;
  private int page_y = 0;
  private Bitmap bitmap = null;
  public PDFSimple(Context context)
  {
    super(context);
  }
  public PDFSimple(Context context, AttributeSet attrs)
  {
    super(context, attrs);
  }
  public void Close()
  {
    if( m_doc != null )
    {
      m_doc.Close();
      m_doc = null;
    }
    if( m_stream != null )
    {
      m_stream.close();
      m_stream = null;
    }
    if( bitmap != null )
    {
      bitmap.recycle();
      bitmap = null;
    }
  }
  private void render_page( int pageno )
  {
    if( m_doc != null && bitmap != null )
    {
      bitmap.eraseColor(0xFFFFFFFF);
      Page page = m_doc.GetPage(pageno);
      if( page != null )
      {
        Matrix mat = new Matrix(m_ratio, -m_ratio, 0, m_doc.GetPageHeight(0) * m_ratio);
        page.RenderToBmp(bitmap, mat);
        /*
        int cnt = page.GetAnnotCount();
        for(int x = 0; x < cnt; ++x)
        {
          int handle = page.GetAnnot(x);
          int type = page.GetAnnotFieldType(handle);
          if( type == 4 )
          {
            Toast.makeText(getContext(), "Signature Found", Toast.LENGTH_SHORT).show();
          }
        }
        */
        mat.Destroy();
        page.Close();
      }
      /*
       * Page page = m_doc.GetPage(pageno); if( page != null ) { Matrix
       * mat = new Matrix(m_ratio, -m_ratio, 0, m_doc.GetPageHeight(0) *
       * m_ratio); page.RenderToBmp(bitmap, mat); float rect[] = new
       * float[4]; rect[0] = 100; rect[1] = 80; rect[2] = rect[0] + 100;
       * rect[3] = rect[1] + 20; page.AddAnnotEditbox(mat, rect, 18, 0);
       * mat.Destroy(); page.Close(); m_doc.Save(); }
       */
    }
  }
  public int Open( String path )
  {
    Close();
    m_doc = new Document();
    m_stream = new PDFFileStream();
    boolean ok = m_stream.open(path);
    if( !ok ) return -1;
    int ret = m_doc.OpenStream(m_stream, null);
    if( ret != 0 )
    {
      m_doc.Close();
      m_doc = null;
      return ret;
    }
    onSizeChanged(win_cx, win_cy, 0, 0);
    return 0;
  }
  protected void onSizeChanged (int w, int h, int oldw, int oldh)
  {
    if( w > 0 && h > 0 )
    {
      win_cx = w;
      win_cy = h;
      if( bitmap != null ) bitmap.recycle();
      bitmap = Bitmap.createBitmap(win_cx, win_cy, Config.ARGB_8888);
      render_page(m_pageno);
    }
  }
  protected void onDraw( Canvas canvas )
  {
    if( bitmap != null )
      canvas.drawBitmap(bitmap, page_x, page_y, null);
  }
}

Java Source Code List