Android example: modify to use new JNI, N-up page display

-  uses AndroidDrawDevice for rendering
-  very simple sample app
-  mupdf-specific functionality in a module called "mupdf"
-  N-up page display
-  page rendering in a background task

Signed-off-by: fredrossperry <fredrossperry@gmail.com>

1 files changed, 9 insertions, 84 deletions

diff --git a/platform/android/example/app/src/main/java/com/artifex/mupdf/example/DocViewActivity.java b/platform/android/example/app/src/main/java/com/artifex/mupdf/example/DocViewActivity.java
index a0e989ff..32f2cecd 100644
--- a/platform/android/example/app/src/main/java/com/artifex/mupdf/example/DocViewActivity.java
+++ b/platform/android/example/app/src/main/java/com/artifex/mupdf/example/DocViewActivity.java
@@ -1,105 +1,30 @@
 package com.artifex.mupdf.example;
 
 import android.app.Activity;
-import android.graphics.Bitmap;
 import android.net.Uri;
 import android.os.Bundle;
-import android.view.View;
-import android.widget.ImageView;
-import android.widget.TextView;
 
-import com.artifex.mupdf.fitz.ColorSpace;
-import com.artifex.mupdf.fitz.Document;
-import com.artifex.mupdf.fitz.Matrix;
-import com.artifex.mupdf.fitz.Page;
-import com.artifex.mupdf.fitz.Pixmap;
+import com.artifex.mupdf.android.DocView;
 
 public class DocViewActivity extends Activity
 {
-	private int mPageCount;
-	private int mCurrentPage;
-
-	Document mDocument;
-	Page mPage;
-	Bitmap mBitmap = null;
-
-	ImageView mImageView;
-	TextView mTextView;
+    private DocView mDocView;
 
 	@Override
 	protected void onCreate(Bundle savedInstanceState)
 	{
 		super.onCreate(savedInstanceState);
-		setContentView(R.layout.activity_doc_view);
 
-		mImageView = (ImageView)findViewById(R.id.image_view);
-		mTextView = (TextView)findViewById(R.id.page_text);
+        //  set up UI
+		setContentView(R.layout.activity_doc_view);
+        mDocView = (DocView)findViewById(R.id.doc_view);
 
-		// load the doc
+		//  get the file path
 		Uri uri = getIntent().getData();
-		String path = Uri.decode(uri.getEncodedPath());
-		mDocument = new Document(path);
-		mPageCount = mDocument.countPages();
-
-		// show the first page
-		mCurrentPage = 0;
-		displayCurrentPage();
-	}
+		final String path = Uri.decode(uri.getEncodedPath());
 
-	public void onFirstPageButton(final View v)
-	{
-		mCurrentPage = 0;
-		displayCurrentPage();
-	}
-
-	public void onPreviousPageButton(final View v)
-	{
-		if (mCurrentPage > 0)
-		{
-			mCurrentPage--;
-			displayCurrentPage();
-		}
+        //  start the view
+        mDocView.start(path);
 	}
 
-	public void onNextPageButton(final View v)
-	{
-		if (mCurrentPage < mPageCount-1)
-		{
-			mCurrentPage++;
-			displayCurrentPage();
-		}
-	}
-
-	public void onLastPageButton(final View v)
-	{
-		mCurrentPage = mPageCount-1;
-		displayCurrentPage();
-	}
-
-	private void displayCurrentPage()
-	{
-		// report the page number
-		mTextView.setText(String.format("page %d of %d",mCurrentPage+1,mPageCount));
-
-		// get the page
-		mPage = mDocument.loadPage(mCurrentPage);
-
-		// create a matrix that renders at 300 DPI
-		Matrix m = new Matrix();
-		m.scale(300.0f/72.0f);
-
-		// create a new bitmap for the page
-		Bitmap old = mBitmap;
-		Pixmap pixmap = mPage.toPixmap(m, ColorSpace.DeviceBGR);
-		mBitmap = Bitmap.createBitmap(pixmap.getWidth(), pixmap.getHeight(), Bitmap.Config.ARGB_8888);
-		int [] pixels = pixmap.getPixels();
-		mBitmap.setPixels(pixels, 0, pixmap.getWidth(), 0, 0, pixmap.getWidth(), pixmap.getHeight());
-
-		// set the bitmap in the UI
-		mImageView.setImageBitmap(mBitmap);
-
-		// recycle the old bitmap
-		if (old!=null)
-			old.recycle();
-	}
 }