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