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                 if (mPreviewImg != null) {
  42                         mPreviewImgObserver = mPreviewImg.getViewTreeObserver();
  43                         Log.i(TAG, "Registering mPreviewImgObserver OnGlobalLayoutListener.");
  44                         mPreviewImgObserver.addOnGlobalLayoutListener(this);
  45                 }
  46                 else {
  47                         Log.e(TAG, "ImageView for preview image could not be found in the resources.");
  48                         mPreviewImgObserver = null;
  49                 }
  50
  51                 Intent intent = getIntent();
  52                 mComponentId = intent.getStringExtra("COMPONENT_ID");
  53
  54                 if (mComponentId != null) {
  55                         Log.i(TAG, "Received component id: " + mComponentId);
  56                         mComponentRootPath = STORAGE_PATH + SKODA_DOCS_PATH_EXTENSION + mComponentId + "/";
  57                         File rootPath = new File(mComponentRootPath);
  58                         if (!rootPath.isDirectory()) {
  59                                 Toast toast = Toast.makeText(getApplicationContext(), "Component not found", Toast.LENGTH_LONG);
  60                                 toast.show();
  61                                 finish();
  62                         }
  63                 }
  64                 else {
  65                         Log.i(TAG, "No component id received");
  66                         finish();
  67                 }
  68         }
  69
  70         @Override
  71         protected void onDestroy() {
  72                 super.onDestroy();
  73                 Log.i(TAG, "Unregistering mPreviewImgObserver OnGlobalLayoutListener.");
  74                 if (mPreviewImgObserver != null && mPreviewImgObserver.isAlive()) {
  75                         mPreviewImgObserver.removeOnGlobalLayoutListener(this);
  76                 }
  77         }
  78
  79         @Override
  80         public boolean onCreateOptionsMenu(Menu menu) {
  81                 // Inflate the menu; this adds items to the action bar if it is present.
  82                 return true;
  83         }
  84
  85         @Override
  86         public void onGlobalLayout() {
  87                 try {
  88                         String picturePath = mComponentRootPath + SKODA_COMP_PICTURE_NAME;
  89                         Log.i(TAG, "Path to component files: " + picturePath);
  90
  91                         MuPDFCore core = new MuPDFCore(getApplicationContext(), picturePath);
  92                         MuPDFCore.Cookie cookie = core.new Cookie();
  93                         int previewW = mPreviewImg.getWidth();
  94                         int previewH = mPreviewImg.getHeight();
  95                         Bitmap.Config conf = Bitmap.Config.ARGB_8888;
  96                         Bitmap previewBitmap = Bitmap.createBitmap(previewW, previewH, conf);
  97                         core.updatePage(previewBitmap, 0, previewW, previewH, 0, 0, previewW, previewH, cookie);
  98                         mPreviewImg.setImageBitmap(previewBitmap);
  99                 } catch (Exception e) {
 100                         Toast toast = Toast.makeText(getApplicationContext(), "Component preview could not be loaded.", Toast.LENGTH_LONG);
 101                         toast.show();
 102                         e.printStackTrace();
 103                 }
 104         }
 105
 106         /** Called when the user touches the button */
 107         public void showContacts(View view) {
 108                 showPDF(mComponentRootPath + SKODA_COMP_CONTACTS);
 109         }
 110
 111         /** Called when the user touches the button */
 112         public void showManufacturing(View view) {
 113                 showPDF(mComponentRootPath + SKODA_COMP_MANUFACTURING);
 114         }
 115
 116         /** Called when the user touches the button */
 117         public void showManufactImages(View view) {
 118                 showPDF(mComponentRootPath + SKODA_COMP_MANUFACT_IMAGES);
 119         }
 120
 121         /** Called when the user touches the button */
 122         public void showManufactGuide(View view) {
 123                 showPDF(mComponentRootPath + SKODA_COMP_MANUFACT_GUIDE);
 124         }
 125
 126         private void showPDF(String filePath) {
 127                 Uri uri = Uri.parse(filePath);
 128                 Intent pdfIntent = new Intent(this,MuPDFActivity.class);
 129                 pdfIntent.setAction(Intent.ACTION_VIEW);
 130                 pdfIntent.setData(uri);
 131                 startActivity(pdfIntent);
 132         }
 133
 134
 135 }