Android Open Source - RadaeePDF-B4A P D F Grid Item

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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.util;
//from   w w  w  . j  av a 2s. c  om
import com.radaee.pdf.Document;
import com.radaee.pdf.Matrix;
import com.radaee.pdf.Page;
import com.radaee.reader.R;
import com.radaee.reader.R.drawable;

import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.Canvas;
import android.graphics.Paint;
import android.util.AttributeSet;
import android.view.Gravity;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.TextView;

public class PDFGridItem extends LinearLayout
{
  private ImageView m_image;
  private TextView m_name;
  private String m_path;
  private Bitmap m_bmp;
  private Page m_page;
  private boolean m_cancel = false;
  static Bitmap m_def_pdf_icon = null;
  static Bitmap m_def_dir_icon = null;
  static Bitmap m_def_up_icon = null;
  static int TEXT_COLOR = 0xFFCCCCCC;
  public PDFGridItem(Context context, AttributeSet attrs)
  {
    super(context, attrs);
    if( m_def_pdf_icon == null )
      m_def_pdf_icon = BitmapFactory.decodeResource(context.getResources(), R.drawable.file03);
    if( m_def_dir_icon == null )
      m_def_dir_icon = BitmapFactory.decodeResource(context.getResources(), R.drawable.folder0);
    if( m_def_up_icon == null )
      m_def_up_icon = BitmapFactory.decodeResource(context.getResources(), R.drawable.folder1);
    this.setBackgroundColor(0);
    this.setOrientation(VERTICAL);
    unlock_file();
  }
  public int open_doc( Document doc, String password )
  {
    lock_file();
    int ret = doc.Open(m_path, password);
    unlock_file();
    return ret;
  }
  public boolean is_dir()
  {
    return (m_bmp == m_def_dir_icon || m_bmp == m_def_up_icon);
  }
  public String get_name()
  {
    return (String) m_name.getText();
  }
  protected synchronized void page_set()
  {
    this.removeAllViews();
    m_image = new ImageView(getContext());
    m_image.setImageBitmap(m_bmp);
    m_image.setPadding(2, 2, 2, 2);
    this.addView(m_image);
    this.addView(m_name);
  }
  protected synchronized void page_destroy()
  {
    m_cancel = true;
    if( m_page != null )
      m_page.RenderCancel();
    if( m_bmp != m_def_pdf_icon && m_bmp != m_def_dir_icon && m_bmp != m_def_up_icon && m_bmp != null )
    {
      m_bmp.recycle();
      m_bmp = null;
    }
  }
  protected void set_dir( String name, String path )
  {
    m_path = path;
    m_name = new TextView(getContext());
    m_name.setText(name);
    m_name.setSingleLine(true);
    m_name.setGravity(Gravity.CENTER_HORIZONTAL);
    m_name.setTextColor(TEXT_COLOR);
    m_image = new ImageView(getContext());
    if( name == ".." )
      m_bmp = m_def_up_icon;
    else
      m_bmp = m_def_dir_icon;
    m_image.setImageBitmap(m_bmp);
    m_image.setPadding(2, 2, 2, 2);
    this.addView(m_image);
    this.addView(m_name);
  }
  protected void set_file( PDFGridThread thread, String name, String path )
  {
    m_path = path;
    m_name = new TextView(getContext());
    m_name.setText(name);
    m_name.setSingleLine(true);
    m_name.setGravity(Gravity.CENTER_HORIZONTAL);
    m_name.setTextColor(TEXT_COLOR);
    m_image = new ImageView(getContext());
    m_bmp = m_def_pdf_icon;
    m_image.setImageBitmap(m_bmp);
    m_image.setPadding(2, 2, 2, 2);
    this.addView(m_image);
    this.addView(m_name);
    thread.start_render( this );
  }
  private synchronized void set_page(Page page, Bitmap bmp)
  {
    m_page = page;
    if( bmp != null ) m_bmp = bmp;
  }
  protected boolean render()
  {
    if( m_cancel ) return false;
    lock_file();
    Document doc = new Document();
    if( doc.Open(m_path, null) == 0 )
    {
      Page page = doc.GetPage(0);
      set_page( page, null );
      float w = doc.GetPageWidth(0);
      float h = doc.GetPageHeight(0);
      int iw = m_bmp.getWidth();
      int ih = m_bmp.getHeight();
      Bitmap bmp = null;
      try
      {
        bmp = Bitmap.createBitmap( iw, ih, Bitmap.Config.ARGB_8888 );
        bmp.eraseColor(0);
        float ratiox = iw/w;
        float ratioy = ih/h;
        if( ratiox > ratioy ) ratiox = ratioy;
        if( !page.RenderThumb(bmp) )
        {
          Canvas canvas = new Canvas(bmp);
          Paint paint = new Paint();
          paint.setARGB(255, 255, 255, 255);
          canvas.drawRect((iw - w * ratiox)/2, (ih - h * ratiox)/2,
              (iw + w * ratiox)/2, (ih + h * ratiox)/2, paint);
          Matrix mat = new Matrix( ratiox, -ratiox, (iw - w * ratiox)/2, (ih + h * ratiox)/2 );
          page.RenderToBmp(bmp, mat);
          mat.Destroy();
          if( !m_page.RenderIsFinished() )
          {
            bmp.recycle();
            bmp = null;
          }
        }
        set_page( null, bmp );
      }
      catch(Exception e)
      {
      }
      page.Close();
      doc.Close();
      unlock_file();
      return bmp != null;
    }
    else
    {
      unlock_file();
      return false;
    }
  }
  private boolean is_notified = false;
  private boolean is_waitting = false;
  private synchronized void lock_file()
  {
    try
    {
      if( is_notified )
        is_notified = false;
      else
      {
        is_waitting = true;
        wait();
        is_waitting = false;
      }
    }
    catch(Exception e)
    {
    }
  }
  private synchronized void unlock_file()
  {
    if( is_waitting )
      notify();
    else
      is_notified = true;
  }
}
Java Source Code List
