git.gag.com Git - debian/openrocket/blob - android/src/net/sf/openrocket/android/motor/MotorHierarchicalBrowser.java

   1 package net.sf.openrocket.android.motor;\r
   2 \r
   3 import net.sf.openrocket.R;\r
   4 import net.sf.openrocket.android.PreferencesActivity;\r
   5 import net.sf.openrocket.android.db.DbAdapter;\r
   6 import net.sf.openrocket.android.db.MotorDao;\r
   7 import net.sf.openrocket.android.thrustcurve.TCQueryActivity;\r
   8 import android.content.Context;\r
   9 import android.content.Intent;\r
  10 import android.content.SharedPreferences;\r
  11 import android.content.res.Resources;\r
  12 import android.database.Cursor;\r
  13 import android.os.Bundle;\r
  14 import android.preference.PreferenceManager;\r
  15 import android.util.Log;\r
  16 import android.view.ContextMenu;\r
  17 import android.view.ContextMenu.ContextMenuInfo;\r
  18 import android.view.Menu;\r
  19 import android.view.MenuInflater;\r
  20 import android.view.MenuItem;\r
  21 import android.view.View;\r
  22 import android.widget.CursorTreeAdapter;\r
  23 import android.widget.ExpandableListView;\r
  24 import android.widget.ResourceCursorTreeAdapter;\r
  25 import android.widget.TextView;\r
  26 \r
  27 \r
  28 public class MotorHierarchicalBrowser\r
  29 extends PersistentExpandableListActivity\r
  30 implements SharedPreferences.OnSharedPreferenceChangeListener\r
  31 {\r
  32         private static final String TAG = "MotorHierarchicalBrowser";\r
  33 \r
  34         private static final int ACTIVITY_DOWNLOAD=0;\r
  35 \r
  36         private static final int CONTEXTMENU_DELETE = Menu.FIRST+1;\r
  37 \r
  38         private String groupColumnPreferenceKey;\r
  39         private String groupColumn = MotorDao.CASE_INFO;\r
  40 \r
  41         private static final String[] groupColumns = new String[] {\r
  42                 MotorDao.CASE_INFO,\r
  43                 MotorDao.DIAMETER,\r
  44                 MotorDao.IMPULSE_CLASS,\r
  45                 MotorDao.MANUFACTURER\r
  46         };\r
  47 \r
  48         private CursorTreeAdapter mAdapter;\r
  49 \r
  50         private DbAdapter mDbHelper;\r
  51 \r
  52         public class MotorHierarchicalListAdapter extends ResourceCursorTreeAdapter\r
  53         {\r
  54 \r
  55                 // Note that the constructor does not take a Cursor. This is done to avoid querying the \r
  56                 // database on the main thread.\r
  57                 public MotorHierarchicalListAdapter(Context context, Cursor cursor, int groupLayout,\r
  58                                 int childLayout ) {\r
  59 \r
  60                         super(context, cursor, groupLayout, childLayout);\r
  61                 }\r
  62 \r
  63                 @Override\r
  64                 protected Cursor getChildrenCursor(Cursor arg0) {\r
  65                         Log.d(TAG,"getChildrenCursor");\r
  66                         String group = arg0.getString(arg0.getColumnIndex(groupColumn));\r
  67                         Log.d(TAG,"  for: "+ groupColumn + " = " + group);\r
  68                         Cursor c = mDbHelper.getMotorDao().fetchAllInGroups(groupColumn,group);\r
  69                         Log.d(TAG,"  got cursor");\r
  70                         startManagingCursor(c);\r
  71                         return c;\r
  72                 }\r
  73 \r
  74                 @Override\r
  75                 public long getGroupId(int groupPosition) {\r
  76                         return groupPosition;\r
  77                 }\r
  78 \r
  79                 /* (non-Javadoc)\r
  80                  * @see android.widget.CursorTreeAdapter#bindChildView(android.view.View, android.content.Context, android.database.Cursor, boolean)\r
  81                  */\r
  82                 @Override\r
  83                 protected void bindChildView(View arg0, Context arg1, Cursor arg2,\r
  84                                 boolean arg3) {\r
  85                         \r
  86                         TextView manu = (TextView) arg0.findViewById(R.id.motorChildManu);\r
  87                         manu.setText( arg2.getString(arg2.getColumnIndex(MotorDao.MANUFACTURER)));\r
  88                         \r
  89                         TextView desig = (TextView) arg0.findViewById(R.id.motorChildName);\r
  90                         desig.setText( arg2.getString(arg2.getColumnIndex(MotorDao.DESIGNATION)));\r
  91                         \r
  92                         TextView delays = (TextView) arg0.findViewById(R.id.motorChildDelays);\r
  93                         delays.setText( arg2.getString(arg2.getColumnIndex(MotorDao.DELAYS)));\r
  94                         \r
  95                         TextView totImpulse = (TextView) arg0.findViewById(R.id.motorChildImpulse);\r
  96                         totImpulse.setText( arg2.getString(arg2.getColumnIndex(MotorDao.TOTAL_IMPULSE)));\r
  97                 }\r
  98 \r
  99                 /* (non-Javadoc)\r
 100                  * @see android.widget.CursorTreeAdapter#bindGroupView(android.view.View, android.content.Context, android.database.Cursor, boolean)\r
 101                  */\r
 102                 @Override\r
 103                 protected void bindGroupView(View view, Context context, Cursor cursor,\r
 104                                 boolean isExpanded) {\r
 105                         TextView v = (TextView) view.findViewById(R.id.motorGroup);\r
 106                         if ( MotorDao.DIAMETER.equals(groupColumn)) {\r
 107                                 double d = cursor.getDouble( cursor.getColumnIndex(groupColumn));\r
 108                                 v.setText( String.valueOf(Math.round(d * 1000.0)) );\r
 109                         } else {\r
 110                                 v.setText( cursor.getString( cursor.getColumnIndex(groupColumn)));\r
 111                         }\r
 112                 }\r
 113                 \r
 114                 \r
 115 \r
 116         }\r
 117 \r
 118         @Override\r
 119         public void onSharedPreferenceChanged(SharedPreferences arg0, String arg1) {\r
 120                 if ( groupColumnPreferenceKey.equals(arg1) ) {\r
 121                         setGroupColumnFromPreferences(arg0);\r
 122                         refreshData();\r
 123                 }\r
 124         }\r
 125 \r
 126         @Override\r
 127         public void onCreate(Bundle savedInstanceState) {\r
 128                 super.onCreate(savedInstanceState);\r
 129 \r
 130                 mDbHelper = new DbAdapter(this);\r
 131                 mDbHelper.open();\r
 132 \r
 133                 Resources resources = this.getResources();\r
 134                 groupColumnPreferenceKey = resources.getString(R.string.PreferenceMotorBrowserGroupingOption);\r
 135                 SharedPreferences pref = PreferenceManager.getDefaultSharedPreferences(this);\r
 136 \r
 137                 setGroupColumnFromPreferences(pref);\r
 138 \r
 139                 pref.registerOnSharedPreferenceChangeListener(this);\r
 140 \r
 141                 refreshData();\r
 142 \r
 143                 registerForContextMenu(getExpandableListView());\r
 144 \r
 145         }\r
 146 \r
 147         @Override\r
 148         public boolean onCreateOptionsMenu(Menu menu) {\r
 149         MenuInflater inflater = getMenuInflater();\r
 150         inflater.inflate(R.menu.motor_browser_option_menu, menu);\r
 151                 return true;\r
 152         }\r
 153 \r
 154         @Override\r
 155         public boolean onMenuItemSelected(int featureId, MenuItem item) {\r
 156                 Log.d(TAG,"onMenuItemSelected" + item.getItemId());\r
 157                 switch(item.getItemId()) {\r
 158                 case R.id.download_from_thrustcurve_menu_option:\r
 159                         tcDownload();\r
 160                         return true;\r
 161                 case R.id.preference_menu_option:\r
 162                         Intent intent = new Intent().setClass(this, PreferencesActivity.class);\r
 163                         this.startActivity(intent);\r
 164                         return true;\r
 165                 }\r
 166                 return super.onMenuItemSelected(featureId, item);\r
 167         }\r
 168 \r
 169         @Override\r
 170         public void onCreateContextMenu(ContextMenu menu, View v, ContextMenuInfo menuInfo) {\r
 171                 Log.d(TAG,"onCreateContextMenu " + menuInfo);\r
 172                 Log.d(TAG, "v.getId() = " + v.getId());\r
 173                 Log.d(TAG, "motorListView = " + R.id.motorListView);\r
 174                 //      if (v.getId() == R.id.motorListView) {\r
 175                 ExpandableListView.ExpandableListContextMenuInfo info = (ExpandableListView.ExpandableListContextMenuInfo) menuInfo;\r
 176                 menu.setHeaderTitle("context menu");\r
 177                 menu.add(Menu.NONE,CONTEXTMENU_DELETE,CONTEXTMENU_DELETE,"Delete");\r
 178                 //      }\r
 179                 super.onCreateContextMenu(menu, v, menuInfo);\r
 180         }\r
 181 \r
 182         @Override\r
 183         public boolean onContextItemSelected(MenuItem item) {\r
 184                 ExpandableListView.ExpandableListContextMenuInfo info = (ExpandableListView.ExpandableListContextMenuInfo) item.getMenuInfo();\r
 185                 long motorId = info.id;\r
 186                 Log.d(TAG,"ContextMenu: " + motorId);\r
 187                 switch(item.getItemId()) {\r
 188                 case CONTEXTMENU_DELETE:\r
 189                         mDbHelper.getMotorDao().deleteMotor(motorId);\r
 190                         refreshData();\r
 191                         return true;\r
 192                 }\r
 193                 return super.onContextItemSelected(item);\r
 194         }\r
 195 \r
 196         @Override\r
 197         protected void onActivityResult(int requestCode, int resultCode, Intent intent) {\r
 198                 super.onActivityResult(requestCode, resultCode, intent);\r
 199                 refreshData();\r
 200         }\r
 201 \r
 202 \r
 203         @Override\r
 204         public boolean onChildClick(ExpandableListView parent, View v, int groupPosition, int childPosition, long id) {\r
 205                 super.onChildClick(parent, v, groupPosition, childPosition, id);\r
 206                 //Intent i = new Intent(this, BurnPlotActivity.class);\r
 207                 Intent i = new Intent(this,MotorDetails.class);\r
 208                 i.putExtra("Motor", id);\r
 209                 startActivity(i);\r
 210                 return true;\r
 211         }\r
 212 \r
 213         @Override\r
 214         protected void onDestroy() {\r
 215                 super.onDestroy();\r
 216                 \r
 217                 SharedPreferences pref = PreferenceManager.getDefaultSharedPreferences(this);\r
 218                 pref.unregisterOnSharedPreferenceChangeListener(this);\r
 219 \r
 220                 // Null out the group cursor. This will cause the group cursor and all of the child cursors\r
 221                 // to be closed.\r
 222                 mAdapter.changeCursor(null);\r
 223                 mAdapter = null;\r
 224 \r
 225                 mDbHelper.close();\r
 226         }\r
 227 \r
 228         private void tcDownload() {\r
 229                 Intent i = new Intent(this, TCQueryActivity.class);\r
 230                 startActivityForResult(i, ACTIVITY_DOWNLOAD);\r
 231         }\r
 232 \r
 233         private void setGroupColumnFromPreferences( SharedPreferences prefs ) {\r
 234                 String indexStr = prefs.getString(groupColumnPreferenceKey, "1");\r
 235                 int index;\r
 236                 //Dirty hack, you can't use integer-array in ListPreferences\r
 237                 try {\r
 238                         index = Integer.parseInt(indexStr);\r
 239                 } catch ( Exception e ) {\r
 240                         index = 1;\r
 241                 }\r
 242                 if ( index >= groupColumns.length ) {\r
 243                         index = 1;\r
 244                 }\r
 245                 groupColumn = groupColumns[index];\r
 246 \r
 247         }\r
 248         private void refreshData() {\r
 249                 if (mAdapter != null ) {\r
 250                         mAdapter.changeCursor(null);\r
 251                 }\r
 252                 Cursor motorCursor = mDbHelper.getMotorDao().fetchGroups(groupColumn);\r
 253                 startManagingCursor(motorCursor);\r
 254                 // Set up our adapter\r
 255                 mAdapter = new MotorHierarchicalListAdapter( \r
 256                                 this,\r
 257                                 motorCursor,\r
 258                                 R.layout.motor_list_group,\r
 259                                 R.layout.motor_list_child);\r
 260                 setListAdapter(mAdapter);\r
 261         }\r
 262 }\r