1 package net.sf.openrocket.android.motor;
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3 import net.sf.openrocket.R;
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4 import net.sf.openrocket.android.db.DbAdapter;
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5 import net.sf.openrocket.android.db.MotorDao;
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6 import net.sf.openrocket.android.util.AndroidLogWrapper;
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7 import net.sf.openrocket.android.util.PersistentExpandableListFragment;
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8 import android.app.Activity;
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9 import android.app.AlertDialog;
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10 import android.content.Context;
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11 import android.content.SharedPreferences;
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12 import android.content.res.Resources;
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13 import android.database.Cursor;
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14 import android.os.Bundle;
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15 import android.preference.PreferenceManager;
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16 import android.support.v4.app.DialogFragment;
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17 import android.support.v4.app.Fragment;
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18 import android.support.v4.app.FragmentTransaction;
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19 import android.view.ContextMenu;
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20 import android.view.ContextMenu.ContextMenuInfo;
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21 import android.view.Menu;
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22 import android.view.MenuItem;
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23 import android.view.View;
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24 import android.widget.ExpandableListView;
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25 import android.widget.ResourceCursorTreeAdapter;
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26 import android.widget.TextView;
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29 public class MotorListFragment extends PersistentExpandableListFragment
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30 implements SharedPreferences.OnSharedPreferenceChangeListener
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32 public interface OnMotorSelectedListener {
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33 public void onMotorSelected( long motorId );
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36 public static MotorListFragment newInstance( ) {
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37 MotorListFragment frag = new MotorListFragment();
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41 private static final int CONTEXTMENU_DELETE = Menu.FIRST+1;
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42 private static final int CONTEXTMENU_EDIT = Menu.FIRST+2;
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44 private String groupColumnPreferenceKey;
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45 private String groupColumn = MotorDao.CASE_INFO;
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47 private static final String[] groupColumns = new String[] {
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50 MotorDao.IMPULSE_CLASS,
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51 MotorDao.MANUFACTURER
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54 private DbAdapter mDbHelper;
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56 private OnMotorSelectedListener motorSelectedListener;
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58 public void setMotorSelectedListener(
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59 OnMotorSelectedListener motorSelectedListener) {
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60 this.motorSelectedListener = motorSelectedListener;
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63 public class MotorHierarchicalListAdapter extends ResourceCursorTreeAdapter
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66 // Note that the constructor does not take a Cursor. This is done to avoid querying the
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67 // database on the main thread.
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68 public MotorHierarchicalListAdapter(Context context, Cursor cursor, int groupLayout,
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71 super(context, cursor, groupLayout, childLayout);
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75 protected Cursor getChildrenCursor(Cursor arg0) {
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76 AndroidLogWrapper.d(MotorListFragment.class,"getChildrenCursor");
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77 String group = arg0.getString(arg0.getColumnIndex(groupColumn));
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78 Cursor c = mDbHelper.getMotorDao().fetchAllInGroups(groupColumn,group);
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83 public long getGroupId(int groupPosition) {
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84 return groupPosition;
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88 * @see android.widget.CursorTreeAdapter#bindChildView(android.view.View, android.content.Context, android.database.Cursor, boolean)
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91 protected void bindChildView(View arg0, Context arg1, Cursor arg2,
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94 TextView manu = (TextView) arg0.findViewById(R.id.motorChildManu);
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95 manu.setText( arg2.getString(arg2.getColumnIndex(MotorDao.MANUFACTURER)));
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97 TextView desig = (TextView) arg0.findViewById(R.id.motorChildName);
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98 desig.setText( arg2.getString(arg2.getColumnIndex(MotorDao.DESIGNATION)));
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100 TextView delays = (TextView) arg0.findViewById(R.id.motorChildDelays);
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101 delays.setText( arg2.getString(arg2.getColumnIndex(MotorDao.DELAYS)));
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103 TextView totImpulse = (TextView) arg0.findViewById(R.id.motorChildImpulse);
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104 totImpulse.setText( arg2.getString(arg2.getColumnIndex(MotorDao.TOTAL_IMPULSE)));
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108 * @see android.widget.CursorTreeAdapter#bindGroupView(android.view.View, android.content.Context, android.database.Cursor, boolean)
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111 protected void bindGroupView(View view, Context context, Cursor cursor,
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112 boolean isExpanded) {
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113 TextView v = (TextView) view.findViewById(R.id.motorGroup);
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114 if ( MotorDao.DIAMETER.equals(groupColumn)) {
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115 double d = cursor.getDouble( cursor.getColumnIndex(groupColumn));
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116 v.setText( String.valueOf(Math.round(d * 1000.0)) + " mm");
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118 v.setText( cursor.getString( cursor.getColumnIndex(groupColumn)));
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125 public void onSharedPreferenceChanged(SharedPreferences arg0, String arg1) {
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126 if ( groupColumnPreferenceKey.equals(arg1) ) {
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127 setGroupColumnFromPreferences(arg0);
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133 public void onViewCreated(View view, Bundle savedInstanceState) {
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134 super.onViewCreated(view, savedInstanceState);
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136 registerForContextMenu(getExpandableListView());
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142 public void onResume() {
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144 Resources resources = this.getResources();
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145 groupColumnPreferenceKey = resources.getString(R.string.PreferenceMotorBrowserGroupingOption);
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146 SharedPreferences pref = PreferenceManager.getDefaultSharedPreferences(getActivity());
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148 setGroupColumnFromPreferences(pref);
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150 pref.registerOnSharedPreferenceChangeListener(this);
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152 Activity activity = getActivity();
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153 if ( activity instanceof OnMotorSelectedListener ) {
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154 motorSelectedListener = (OnMotorSelectedListener) activity;
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164 public void onCreateContextMenu(ContextMenu menu, View v, ContextMenuInfo menuInfo) {
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165 menu.setHeaderTitle("Motor Operations");
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166 menu.add(Menu.NONE,CONTEXTMENU_DELETE,CONTEXTMENU_DELETE,"Delete");
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167 menu.add(Menu.NONE,CONTEXTMENU_EDIT,CONTEXTMENU_EDIT,"Edit");
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168 super.onCreateContextMenu(menu, v, menuInfo);
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172 public boolean onContextItemSelected(MenuItem item) {
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173 ExpandableListView.ExpandableListContextMenuInfo info = (ExpandableListView.ExpandableListContextMenuInfo) item.getMenuInfo();
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174 long motorId = info.id;
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175 AndroidLogWrapper.d(MotorListFragment.class,"ContextMenu: " + motorId);
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176 switch(item.getItemId()) {
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177 case CONTEXTMENU_DELETE:
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178 mDbHelper.getMotorDao().deleteMotor(motorId);
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181 case CONTEXTMENU_EDIT:
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182 // DialogFragment.show() will take care of adding the fragment
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183 // in a transaction. We also want to remove any currently showing
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184 // dialog, so make our own transaction and take care of that here.
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185 FragmentTransaction ft = getFragmentManager().beginTransaction();
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186 Fragment prev = getFragmentManager().findFragmentByTag("dialog");
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187 if (prev != null) {
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190 ft.addToBackStack(null);
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192 // Create and show the dialog.
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193 DialogFragment newFragment = MotorDetailsFragment.newInstance(motorId);
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194 newFragment.show(ft, "dialog");
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197 return super.onContextItemSelected(item);
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201 public boolean onChildClick(ExpandableListView parent, View v, int groupPosition, int childPosition, long id) {
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202 super.onChildClick(parent, v, groupPosition, childPosition, id);
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203 if( motorSelectedListener != null ) {
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204 motorSelectedListener.onMotorSelected(id);
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210 public void onPause() {
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212 SharedPreferences pref = PreferenceManager.getDefaultSharedPreferences(getActivity());
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213 pref.unregisterOnSharedPreferenceChangeListener(this);
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218 private void setGroupColumnFromPreferences( SharedPreferences prefs ) {
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219 String indexStr = prefs.getString(groupColumnPreferenceKey, "1");
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221 //Dirty hack, you can't use integer-array in ListPreferences
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223 index = Integer.parseInt(indexStr);
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224 } catch ( Exception e ) {
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227 if ( index >= groupColumns.length ) {
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230 groupColumn = groupColumns[index];
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234 public void refreshData() {
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235 if ( mDbHelper == null ) {
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236 mDbHelper = new DbAdapter(getActivity());
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240 Cursor motorCounter = mDbHelper.getMotorDao().fetchAllMotors();
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241 int motorCount = motorCounter.getCount();
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242 motorCounter.close();
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244 if ( motorCount == 0 ) {
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245 AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
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246 builder.setTitle("No Motors Found");
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247 builder.setMessage("Motors can be downloaded from thrustcurve");
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248 builder.setCancelable(true);
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249 builder.create().show();
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252 Cursor motorCursor = mDbHelper.getMotorDao().fetchGroups(groupColumn);
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253 MotorHierarchicalListAdapter mAdapter = new MotorHierarchicalListAdapter(
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256 R.layout.motor_list_group,
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257 R.layout.motor_list_child);
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258 setListAdapter(mAdapter);
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259 onContentChanged();
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