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 net.sf.openrocket.motor.Motor;
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9 import android.app.Activity;
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10 import android.content.Context;
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11 import android.content.Intent;
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12 import android.content.SharedPreferences;
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13 import android.content.res.Resources;
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14 import android.database.Cursor;
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15 import android.os.Bundle;
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16 import android.preference.PreferenceManager;
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17 import android.view.ContextMenu;
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18 import android.view.ContextMenu.ContextMenuInfo;
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19 import android.view.Menu;
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20 import android.view.MenuItem;
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21 import android.view.View;
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22 import android.widget.CursorTreeAdapter;
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23 import android.widget.ExpandableListView;
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24 import android.widget.ResourceCursorTreeAdapter;
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25 import android.widget.TextView;
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29 * TODO - make this work with PersistentExpandableListFragment.
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32 public class MotorListFragment extends PersistentExpandableListFragment
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33 implements SharedPreferences.OnSharedPreferenceChangeListener
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35 public interface OnMotorSelectedListener {
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36 public void onMotorSelected( long motorId );
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39 public static MotorListFragment newInstance( ) {
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41 MotorListFragment frag = new MotorListFragment();
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45 private static final int CONTEXTMENU_DELETE = Menu.FIRST+1;
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47 private String groupColumnPreferenceKey;
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48 private String groupColumn = MotorDao.CASE_INFO;
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50 private static final String[] groupColumns = new String[] {
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53 MotorDao.IMPULSE_CLASS,
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54 MotorDao.MANUFACTURER
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57 private CursorTreeAdapter mAdapter;
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59 private DbAdapter mDbHelper;
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61 private OnMotorSelectedListener motorSelectedListener;
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63 public void setMotorSelectedListener(
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64 OnMotorSelectedListener motorSelectedListener) {
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65 this.motorSelectedListener = motorSelectedListener;
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68 public class MotorHierarchicalListAdapter extends ResourceCursorTreeAdapter
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71 // Note that the constructor does not take a Cursor. This is done to avoid querying the
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72 // database on the main thread.
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73 public MotorHierarchicalListAdapter(Context context, Cursor cursor, int groupLayout,
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76 super(context, cursor, groupLayout, childLayout);
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80 protected Cursor getChildrenCursor(Cursor arg0) {
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81 AndroidLogWrapper.d(MotorListFragment.class,"getChildrenCursor");
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82 String group = arg0.getString(arg0.getColumnIndex(groupColumn));
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83 AndroidLogWrapper.d(MotorListFragment.class," for: "+ groupColumn + " = " + group);
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84 Cursor c = mDbHelper.getMotorDao().fetchAllInGroups(groupColumn,group);
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85 AndroidLogWrapper.d(MotorListFragment.class," got cursor");
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86 getActivity().startManagingCursor(c);
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91 public long getGroupId(int groupPosition) {
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92 return groupPosition;
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96 * @see android.widget.CursorTreeAdapter#bindChildView(android.view.View, android.content.Context, android.database.Cursor, boolean)
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99 protected void bindChildView(View arg0, Context arg1, Cursor arg2,
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102 TextView manu = (TextView) arg0.findViewById(R.id.motorChildManu);
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103 manu.setText( arg2.getString(arg2.getColumnIndex(MotorDao.MANUFACTURER)));
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105 TextView desig = (TextView) arg0.findViewById(R.id.motorChildName);
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106 desig.setText( arg2.getString(arg2.getColumnIndex(MotorDao.DESIGNATION)));
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108 TextView delays = (TextView) arg0.findViewById(R.id.motorChildDelays);
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109 delays.setText( arg2.getString(arg2.getColumnIndex(MotorDao.DELAYS)));
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111 TextView totImpulse = (TextView) arg0.findViewById(R.id.motorChildImpulse);
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112 totImpulse.setText( arg2.getString(arg2.getColumnIndex(MotorDao.TOTAL_IMPULSE)));
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116 * @see android.widget.CursorTreeAdapter#bindGroupView(android.view.View, android.content.Context, android.database.Cursor, boolean)
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119 protected void bindGroupView(View view, Context context, Cursor cursor,
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120 boolean isExpanded) {
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121 TextView v = (TextView) view.findViewById(R.id.motorGroup);
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122 if ( MotorDao.DIAMETER.equals(groupColumn)) {
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123 double d = cursor.getDouble( cursor.getColumnIndex(groupColumn));
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124 v.setText( String.valueOf(Math.round(d * 1000.0)) );
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126 v.setText( cursor.getString( cursor.getColumnIndex(groupColumn)));
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133 public void onSharedPreferenceChanged(SharedPreferences arg0, String arg1) {
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134 if ( groupColumnPreferenceKey.equals(arg1) ) {
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135 setGroupColumnFromPreferences(arg0);
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141 public void onViewCreated(View view, Bundle savedInstanceState) {
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142 super.onViewCreated(view, savedInstanceState);
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145 registerForContextMenu(getExpandableListView());
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150 public void onAttach(Activity activity) {
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151 super.onAttach(activity);
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152 mDbHelper = new DbAdapter(getActivity());
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155 Resources resources = this.getResources();
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156 groupColumnPreferenceKey = resources.getString(R.string.PreferenceMotorBrowserGroupingOption);
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157 SharedPreferences pref = PreferenceManager.getDefaultSharedPreferences(getActivity());
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159 setGroupColumnFromPreferences(pref);
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161 pref.registerOnSharedPreferenceChangeListener(this);
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163 if ( activity instanceof OnMotorSelectedListener ) {
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164 motorSelectedListener = (OnMotorSelectedListener) activity;
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170 public void onCreateContextMenu(ContextMenu menu, View v, ContextMenuInfo menuInfo) {
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171 menu.setHeaderTitle("Motor Operations");
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172 menu.add(Menu.NONE,CONTEXTMENU_DELETE,CONTEXTMENU_DELETE,"Delete");
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173 super.onCreateContextMenu(menu, v, menuInfo);
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177 public boolean onContextItemSelected(MenuItem item) {
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178 ExpandableListView.ExpandableListContextMenuInfo info = (ExpandableListView.ExpandableListContextMenuInfo) item.getMenuInfo();
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179 long motorId = info.id;
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180 AndroidLogWrapper.d(MotorListFragment.class,"ContextMenu: " + motorId);
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181 switch(item.getItemId()) {
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182 case CONTEXTMENU_DELETE:
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183 mDbHelper.getMotorDao().deleteMotor(motorId);
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187 return super.onContextItemSelected(item);
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191 public boolean onChildClick(ExpandableListView parent, View v, int groupPosition, int childPosition, long id) {
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192 super.onChildClick(parent, v, groupPosition, childPosition, id);
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193 //Intent i = new Intent(this, BurnPlotActivity.class);
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194 if( motorSelectedListener != null ) {
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195 motorSelectedListener.onMotorSelected(id);
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201 public void onDetach() {
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203 SharedPreferences pref = PreferenceManager.getDefaultSharedPreferences(getActivity());
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204 pref.unregisterOnSharedPreferenceChangeListener(this);
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206 // Null out the group cursor. This will cause the group cursor and all of the child cursors
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208 mAdapter.changeCursor(null);
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214 private void setGroupColumnFromPreferences( SharedPreferences prefs ) {
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215 String indexStr = prefs.getString(groupColumnPreferenceKey, "1");
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217 //Dirty hack, you can't use integer-array in ListPreferences
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219 index = Integer.parseInt(indexStr);
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220 } catch ( Exception e ) {
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223 if ( index >= groupColumns.length ) {
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226 groupColumn = groupColumns[index];
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229 private void refreshData() {
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230 if (mAdapter != null ) {
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231 mAdapter.changeCursor(null);
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233 Cursor motorCursor = mDbHelper.getMotorDao().fetchGroups(groupColumn);
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234 getActivity().startManagingCursor(motorCursor);
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235 // Set up our adapter
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236 mAdapter = new MotorHierarchicalListAdapter(
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239 R.layout.motor_list_group,
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240 R.layout.motor_list_child);
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241 setListAdapter(mAdapter);
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