Android Open Source - RadaeePDF-B4A P D F Thumb View

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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 a  va  2 s . c o m*/
import com.radaee.pdf.Document;
import com.radaee.pdf.Page;
import com.radaee.view.PDFView.PDFPos;
import com.radaee.view.PDFView.PDFViewListener;
import com.radaee.view.PDFVPage;
import com.radaee.view.PDFViewThumb;
import com.radaee.view.PDFViewThumb.PDFThumbListener;

import android.content.Context;
import android.graphics.Canvas;
import android.graphics.Paint;
import android.graphics.Paint.Align;
import android.util.AttributeSet;
import android.view.MotionEvent;
import android.view.View;

public class PDFThumbView extends View implements PDFViewListener
{
  private PDFViewThumb m_thumb;
  public PDFThumbView(Context context, AttributeSet attrs)
  {
    super(context, attrs);
    m_thumb = new PDFViewThumb(context);
  }
  public void OnPDFPosChanged(PDFPos pos)
  {
  }
  public boolean OnPDFDoubleTapped(float x, float y)
  {
    return false;
  }
  public boolean OnPDFSingleTapped(float x, float y)
  {
    return false;
  }
  public void OnPDFLongPressed(float x, float y)
  {
  }
  public void OnPDFShowPressed(float x, float y)
  {
  }
  public void OnPDFSelectEnd()
  {
  }
  public void OnPDFFound(boolean found)
  {
  }
  public void OnPDFInvalidate(boolean post)
  {
    if( post ) postInvalidate();
    else invalidate();
  }
  @Override
  public void computeScroll()
  {
    if( m_thumb != null )
      m_thumb.vComputeScroll();
  }
  @Override
  protected void onDraw(Canvas canvas)
  {
    if( m_thumb != null )
      m_thumb.vDraw(canvas);
  }
  @Override
  protected void onSizeChanged( int w, int h, int oldw, int oldh )
  {
    if( m_thumb != null )
      m_thumb.vResize(w, h);
  }
  @Override
  public boolean onTouchEvent(MotionEvent event)
  {
    if( m_thumb == null ) return false;
    return m_thumb.vTouchEvent(event);
  }
  public void thumbOpen( Document doc, PDFThumbListener listener )
  {
    //m_thumb.vSetOrientation(2);//RTOL horizontal layout
    m_thumb.vOpen(doc, 8, 0x40CCCCCC, this);
    m_thumb.vSetThumbListener(listener);
    m_thumb.vResize(getWidth(), getHeight());
  }
  public void thumbClose()
  {
    m_thumb.vClose();
  }
  /**
   * set selected page and goto the page
   * @param pageno
   */
  public void thumbGotoPage( int pageno )
  {
    m_thumb.vSetSel(pageno);
  }
  /**
   * render a page again, after page is edited.
   * @param pageno
   */
  public void thumbUpdatePage( int pageno )
  {
    m_thumb.vRender(m_thumb.vGetPage(pageno));
  }
  private Paint m_paint = new Paint();
  public void OnPDFPageDisplayed(Canvas canvas, PDFVPage vpage)
  {
    m_paint.setColor(0x800000FF);
    int top = vpage.GetVY(m_thumb.vGetY());
    int bottom = top + vpage.GetHeight();
    int left = vpage.GetVX(m_thumb.vGetX());
    int right = left + vpage.GetWidth();
    if( m_thumb.vGetOrientation() == 1 )//vertical
      m_paint.setTextSize(m_thumb.vGetWinW() / 5);
    else
      m_paint.setTextSize(m_thumb.vGetWinH() / 5);
    m_paint.setTextAlign(Align.CENTER);
    canvas.drawText(String.valueOf(vpage.GetPageNo() + 1),
        (left + right)/2, (top + bottom)/2, m_paint);
  }
  public void OnPDFSelecting(Canvas canvas, int[] rect1, int[] rect2) {
    // TODO Auto-generated method stub
    
  }
}

Java Source Code List