git.gag.com Git - debian/openrocket/blob - android/src/net/sf/openrocket/android/thrustcurve/TCQueryAction.java

   1 package net.sf.openrocket.android.thrustcurve;\r
   2 \r
   3 import net.sf.openrocket.android.db.DbAdapter;\r
   4 import net.sf.openrocket.android.motor.ExtendedThrustCurveMotor;\r
   5 import net.sf.openrocket.android.util.AndroidLogWrapper;\r
   6 import net.sf.openrocket.android.util.ProgressDialogFragment;\r
   7 import android.app.Activity;\r
   8 import android.os.AsyncTask;\r
   9 import android.os.Bundle;\r
  10 import android.os.Handler;\r
  11 import android.support.v4.app.DialogFragment;\r
  12 import android.support.v4.app.Fragment;\r
  13 import android.view.LayoutInflater;\r
  14 import android.view.View;\r
  15 import android.view.ViewGroup;\r
  16 \r
  17 /**\r
  18  * TCQueryAction is a class which provides all the functionality required\r
  19  * to download motor data from thrustcurve.  It includes UI element for\r
  20  * progress and error reporting dialogs.\r
  21  * \r
  22  * To use the class, instantiate a new instance of TCQueryAction passing in the\r
  23  * owning Activity.\r
  24  * \r
  25  * The Activity should implement TCQueryAction.OnComplete or provide an implementation of\r
  26  * TCQueryAction.OnComplete to be notified when the download process is complete.\r
  27  * \r
  28  * A search and download is started with TCQueryActivity.start( SearchRequest ).  The TCQueryActivity\r
  29  * produces and updates a progress dialog.  When the process is complete, the TCQueryActivity will notify\r
  30  * the registered TCQueryAction.OnComplete handler.\r
  31  * \r
  32  * When the parent Activity is dismissed, it must call TCQueryAction.dismiss() to free resources.\r
  33  * \r
  34  */\r
  35 public abstract class TCQueryAction extends Fragment {\r
  36 \r
  37         private final static String PROGRESS_DIALOG_TAG = "progress_dialog";\r
  38 \r
  39         public interface OnTCQueryCompleteListener {\r
  40                 public void onTCQueryComplete(String message);\r
  41         }\r
  42 \r
  43         protected AsyncTask<Void,Void,String> task;\r
  44         protected Handler handler;\r
  45 \r
  46         private OnTCQueryCompleteListener onCompleteListener;\r
  47 \r
  48         @Override\r
  49         public void onCreate(Bundle savedInstanceState) {\r
  50                 super.onCreate(savedInstanceState);\r
  51                 setRetainInstance(true);\r
  52                 handler = new Handler();\r
  53                 if ( savedInstanceState == null ) {\r
  54                         // this means we are starting for the first time.\r
  55                         task.execute((Void)null);\r
  56                 }\r
  57         }\r
  58 \r
  59 \r
  60         @Override\r
  61         public View onCreateView(LayoutInflater inflater, ViewGroup container,\r
  62                         Bundle savedInstanceState) {\r
  63                 return null;\r
  64         }\r
  65 \r
  66         @Override\r
  67         public void onActivityCreated(Bundle arg0) {\r
  68                 super.onActivityCreated(arg0);\r
  69                 Activity parent = getActivity();\r
  70                 if ( parent instanceof OnTCQueryCompleteListener ) {\r
  71                         onCompleteListener = (OnTCQueryCompleteListener) parent;\r
  72                 }\r
  73         }\r
  74 \r
  75         /**\r
  76          * The return value is a message string which may be displayed by the caller.\r
  77          *\r
  78          */\r
  79         protected abstract class TCQueryTask extends AsyncTask<Void,Void,String> {\r
  80                 @Override\r
  81                 protected void onPreExecute() {\r
  82                         super.onPreExecute();\r
  83                         DialogFragment newFragment = ProgressDialogFragment.newInstance("", "");\r
  84                         newFragment.show(getFragmentManager(), PROGRESS_DIALOG_TAG);\r
  85                 }\r
  86 \r
  87                 @Override\r
  88                 protected void onPostExecute(String obj) {\r
  89                         super.onPostExecute(obj);\r
  90                         AndroidLogWrapper.d(TCQueryAction.class,"Finished loading " + TCQueryAction.this);\r
  91                         dismiss();\r
  92                         if (onCompleteListener != null ) {\r
  93                                 onCompleteListener.onTCQueryComplete(obj);\r
  94                         }\r
  95                 }\r
  96         }\r
  97 \r
  98         protected void writeMotor( TCMotor mi, MotorBurnFile b) throws Exception {\r
  99 \r
 100                 DbAdapter mDbHelper = new DbAdapter(getActivity());\r
 101                 mDbHelper.open();\r
 102                 try {\r
 103                         ExtendedThrustCurveMotor m = new ExtendedThrustCurveMotor();\r
 104 \r
 105                         m.setThrustCurveMotor( b.getThrustCurveMotor() );\r
 106 \r
 107                         // Convert impulse class.  ThrustCurve puts mmx, 1/4a and 1/2a as A.\r
 108                         m.setImpulseClass(mi.getImpulse_class());\r
 109                         if ( "a".equalsIgnoreCase(mi.getImpulse_class())) {\r
 110                                 if( mi.getCommon_name().startsWith("1/2A") ) {\r
 111                                         m.setImpulseClass("1/2A");\r
 112                                 } else if (mi.getCommon_name().startsWith("1/4A") ) {\r
 113                                         m.setImpulseClass("1/4A");\r
 114                                 } else if (mi.getCommon_name().startsWith("Micro") ) {\r
 115                                         m.setImpulseClass("1/8A");\r
 116                                 }\r
 117                         }\r
 118 \r
 119                         // Convert Case Info.\r
 120                         if ( mi.getCase_info() == null\r
 121                                         || "single use".equalsIgnoreCase(mi.getCase_info())\r
 122                                         || "single-use".equalsIgnoreCase(mi.getCase_info())) {\r
 123                                 m.setCaseInfo(mi.getType()+ " " + mi.getDiameter() + "x" + mi.getLength());\r
 124                         } else {\r
 125                                 m.setCaseInfo(mi.getCase_info());\r
 126                         }\r
 127 \r
 128                         AndroidLogWrapper.d(TCQueryAction.class,"adding motor " + m.toString());\r
 129                         // Write motor.\r
 130                         mDbHelper.getMotorDao().insertOrUpdateMotor(m);\r
 131                 } finally {\r
 132                         mDbHelper.close();\r
 133                 }\r
 134         }\r
 135 \r
 136         protected void dismiss() {\r
 137                 AndroidLogWrapper.d(TCQueryAction.class,"dismiss the progress");\r
 138                 ProgressDialogFragment progress = (ProgressDialogFragment) getActivity().getSupportFragmentManager().findFragmentByTag(PROGRESS_DIALOG_TAG);\r
 139                 if ( progress != null ) {\r
 140                         progress.dismiss();\r
 141                 }\r
 142         }\r
 143 \r
 144         protected class UpdateMessage implements Runnable {\r
 145                 private String newMessage;\r
 146                 UpdateMessage( String message ) {\r
 147                         this.newMessage = message;\r
 148                 }\r
 149                 @Override\r
 150                 public void run() {\r
 151                         ProgressDialogFragment progress = (ProgressDialogFragment) getActivity().getSupportFragmentManager().findFragmentByTag(PROGRESS_DIALOG_TAG);\r
 152                         if ( progress != null )\r
 153                                 progress.setMessage(newMessage);\r
 154                 }\r
 155         }\r
 156 \r
 157 }\r