QRScanner/mobile/src/main/java/cz/cvut/fel/dce/qrscanner/PreviewActivity.java

   1 package cz.cvut.fel.dce.qrscanner;
   2
   3 import android.content.Intent;
   4 import android.graphics.Bitmap;
   5 import android.net.Uri;
   6 import android.support.v7.app.ActionBarActivity;
   7 import android.os.Bundle;
   8 import android.util.Log;
   9 import android.view.Menu;
  10 import android.view.MenuItem;
  11 import android.view.View;
  12 import android.view.ViewTreeObserver;
  13 import android.widget.Button;
  14 import android.widget.ImageView;
  15 import android.widget.Toast;
  16
  17 import cz.cvut.fel.dce.qrscanner.mupdf.MuPDFActivity;
  18 import cz.cvut.fel.dce.qrscanner.mupdf.MuPDFCore;
  19 import java.io.File;
  20
  21 public class PreviewActivity extends ActionBarActivity implements ViewTreeObserver.OnGlobalLayoutListener {
  22         public static final String TAG = "PreviewActivity";
  23         public static final String STORAGE_PATH = "/storage/sdcard0/Pictures";
  24         public static final String SKODA_DOCS_PATH_EXTENSION = "/skoda/components/";
  25         public static final String SKODA_COMP_PICTURE_NAME = "Abbildung.pdf";
  26         public static final String SKODA_COMP_MANUFACTURING = "Arbeitseinleitung.pdf";
  27         public static final String SKODA_COMP_MANUFACT_IMAGES = "Bild_Arbeitseinleitung.pdf";
  28         public static final String SKODA_COMP_CONTACTS = "Angaben.pdf";
  29         public static final String SKODA_COMP_MANUFACT_GUIDE = "Werkstatt_Einleitung.pdf";
  30
  31         private ImageView mPreviewImg;
  32         private ViewTreeObserver mPreviewImgObserver;
  33         private String mComponentId;
  34         private String mComponentRootPath;
  35
  36         @Override
  37         protected void onCreate(Bundle savedInstanceState) {
  38                 super.onCreate(savedInstanceState);
  39                 setContentView(R.layout.activity_preview);
  40                 mPreviewImg = (ImageView) findViewById(R.id.imgComponent);
  41                 mPreviewImg.setScaleType(ImageView.ScaleType.CENTER_INSIDE);
  42
  43                 if (mPreviewImg != null) {
  44                         mPreviewImgObserver = mPreviewImg.getViewTreeObserver();
  45                         Log.i(TAG, "Registering mPreviewImgObserver OnGlobalLayoutListener.");
  46                         mPreviewImgObserver.addOnGlobalLayoutListener(this);
  47                 }
  48                 else {
  49                         Log.e(TAG, "ImageView for preview image could not be found in the resources.");
  50                         mPreviewImgObserver = null;
  51                 }
  52
  53                 Intent intent = getIntent();
  54                 mComponentId = intent.getStringExtra("COMPONENT_ID");
  55
  56                 if (mComponentId != null) {
  57                         Log.i(TAG, "Received component id: " + mComponentId);
  58                         mComponentRootPath = STORAGE_PATH + SKODA_DOCS_PATH_EXTENSION + mComponentId + "/";
  59                         File rootPath = new File(mComponentRootPath);
  60                         if (!rootPath.isDirectory()) {
  61                                 Toast toast = Toast.makeText(getApplicationContext(), "Component not found", Toast.LENGTH_LONG);
  62                                 toast.show();
  63                                 finish();
  64                         }
  65                 }
  66                 else {
  67                         Log.i(TAG, "No component id received");
  68                         finish();
  69                 }
  70         }
  71
  72         @Override
  73         protected void onDestroy() {
  74                 super.onDestroy();
  75                 Log.i(TAG, "Unregistering mPreviewImgObserver OnGlobalLayoutListener.");
  76                 if (mPreviewImgObserver != null && mPreviewImgObserver.isAlive()) {
  77                         mPreviewImgObserver.removeOnGlobalLayoutListener(this);
  78                 }
  79         }
  80
  81         @Override
  82         public boolean onCreateOptionsMenu(Menu menu) {
  83                 // Inflate the menu; this adds items to the action bar if it is present.
  84                 return true;
  85         }
  86
  87         @Override
  88         public void onGlobalLayout() {
  89                 try {
  90                         String picturePath = mComponentRootPath + SKODA_COMP_PICTURE_NAME;
  91                         Log.i(TAG, "Path to component files: " + picturePath);
  92
  93                         MuPDFCore core = new MuPDFCore(getApplicationContext(), picturePath);
  94                         Log.d(TAG, "numpages: "+ core.countPages());
  95                         MuPDFCore.Cookie cookie = core.new Cookie();
  96                         int pageW = (int)core.getPageSize(0).x;
  97                         int pageH = (int)core.getPageSize(0).y;
  98                         Log.d(TAG, "page size: " + pageW + ", " + pageH);
  99                         Bitmap.Config conf = Bitmap.Config.ARGB_8888;
 100                         Bitmap previewBitmap = Bitmap.createBitmap(pageW, pageH, conf);
 101                         core.drawPage(previewBitmap, 0, pageW, pageH,0 , 0, pageW, pageH, cookie);
 102                         mPreviewImg.setMaxWidth(mPreviewImg.getWidth());
 103                         mPreviewImg.setMaxHeight(mPreviewImg.getHeight());
 104                         mPreviewImg.setImageBitmap(previewBitmap);
 105                         mPreviewImg.invalidate();
 106                 } catch (Exception e) {
 107                         Toast toast = Toast.makeText(getApplicationContext(), "Component preview could not be loaded.", Toast.LENGTH_LONG);
 108                         toast.show();
 109                         e.printStackTrace();
 110                 }
 111         }
 112
 113         /** Called when the user touches the button */
 114         public void showContacts(View view) {
 115                 showPDF(mComponentRootPath + SKODA_COMP_CONTACTS);
 116         }
 117
 118         /** Called when the user touches the button */
 119         public void showManufacturing(View view) {
 120                 showPDF(mComponentRootPath + SKODA_COMP_MANUFACTURING);
 121         }
 122
 123         /** Called when the user touches the button */
 124         public void showManufactImages(View view) {
 125                 showPDF(mComponentRootPath + SKODA_COMP_MANUFACT_IMAGES);
 126         }
 127
 128         /** Called when the user touches the button */
 129         public void showManufactGuide(View view) {
 130                 showPDF(mComponentRootPath + SKODA_COMP_MANUFACT_GUIDE);
 131         }
 132
 133         private void showPDF(String filePath) {
 134                 Uri uri = Uri.parse(filePath);
 135                 Intent pdfIntent = new Intent(this,MuPDFActivity.class);
 136                 pdfIntent.setAction(Intent.ACTION_VIEW);
 137                 pdfIntent.setData(uri);
 138                 startActivity(pdfIntent);
 139         }
 140
 141
 142 }