app/src/main/java/net/ktnx/mobileledger/ui/transaction_list/TransactionListAdapter.java

   1 /*
   2  * Copyright © 2019 Damyan Ivanov.
   3  * This file is part of MoLe.
   4  * MoLe is free software: you can distribute it and/or modify it
   5  * under the term of the GNU General Public License as published by
   6  * the Free Software Foundation, either version 3 of the License, or
   7  * (at your opinion), any later version.
   8  *
   9  * MoLe is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  12  * GNU General Public License terms for details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with MoLe. If not, see <https://www.gnu.org/licenses/>.
  16  */
  17
  18 package net.ktnx.mobileledger.ui.transaction_list;
  19
  20 import android.content.Context;
  21 import android.database.sqlite.SQLiteDatabase;
  22 import android.graphics.Typeface;
  23 import android.os.AsyncTask;
  24 import android.text.Spannable;
  25 import android.text.SpannableString;
  26 import android.text.style.StyleSpan;
  27 import android.view.Gravity;
  28 import android.view.LayoutInflater;
  29 import android.view.View;
  30 import android.view.ViewGroup;
  31 import android.widget.LinearLayout;
  32 import android.widget.TextView;
  33
  34 import androidx.annotation.NonNull;
  35 import androidx.appcompat.widget.AppCompatTextView;
  36 import androidx.recyclerview.widget.RecyclerView;
  37
  38 import net.ktnx.mobileledger.App;
  39 import net.ktnx.mobileledger.R;
  40 import net.ktnx.mobileledger.model.Data;
  41 import net.ktnx.mobileledger.model.LedgerTransaction;
  42 import net.ktnx.mobileledger.model.LedgerTransactionAccount;
  43 import net.ktnx.mobileledger.model.TransactionListItem;
  44 import net.ktnx.mobileledger.utils.Colors;
  45 import net.ktnx.mobileledger.utils.Globals;
  46
  47 import java.text.DateFormat;
  48 import java.util.Date;
  49 import java.util.GregorianCalendar;
  50 import java.util.TimeZone;
  51
  52 import static net.ktnx.mobileledger.utils.DimensionUtils.dp2px;
  53
  54 public class TransactionListAdapter extends RecyclerView.Adapter<TransactionRowHolder> {
  55     public void onBindViewHolder(@NonNull TransactionRowHolder holder, int position) {
  56         TransactionListItem item = TransactionListViewModel.getTransactionListItem(position);
  57
  58         // in a race when transaction value is reduced, but the model hasn't been notified yet
  59         // the view will disappear when the notifications reaches the model, so by simply omitting
  60         // the out-of-range get() call nothing bad happens - just a to-be-deleted view remains
  61         // a bit longer
  62         if (item == null)
  63             return;
  64
  65         switch (item.getType()) {
  66             case TRANSACTION:
  67                 holder.vTransaction.setVisibility(View.VISIBLE);
  68                 holder.vDelimiter.setVisibility(View.GONE);
  69                 LedgerTransaction tr = item.getTransaction();
  70
  71                 //        debug("transactions", String.format("Filling position %d with %d
  72                 //        accounts", position,
  73                 //                tr.getAccounts().size()));
  74
  75                 TransactionLoader loader = new TransactionLoader();
  76                 loader.executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR,
  77                         new TransactionLoaderParams(tr, holder, position,
  78                                 Data.accountFilter.getValue(), item.isOdd()));
  79
  80                 // WORKAROUND what seems to be a bug in CardHolder somewhere
  81                 // when a view that was previously holding a delimiter is re-purposed
  82                 // occasionally it stays too short (not high enough)
  83                 holder.vTransaction.measure(
  84                         View.MeasureSpec.makeMeasureSpec(holder.itemView.getWidth(),
  85                                 View.MeasureSpec.EXACTLY),
  86                         View.MeasureSpec.makeMeasureSpec(0, View.MeasureSpec.UNSPECIFIED));
  87                 break;
  88             case DELIMITER:
  89                 Date date = item.getDate();
  90                 holder.vTransaction.setVisibility(View.GONE);
  91                 holder.vDelimiter.setVisibility(View.VISIBLE);
  92                 holder.tvDelimiterDate.setText(DateFormat.getDateInstance()
  93                                                          .format(date));
  94                 if (item.isMonthShown()) {
  95                     GregorianCalendar cal = new GregorianCalendar(TimeZone.getDefault());
  96                     cal.setTime(date);
  97                     holder.tvDelimiterMonth.setText(
  98                             Globals.monthNames[cal.get(GregorianCalendar.MONTH)]);
  99                     holder.tvDelimiterMonth.setVisibility(View.VISIBLE);
 100                     //                holder.vDelimiterLine.setBackgroundResource(R.drawable
 101                     //                .dashed_border_8dp);
 102                     holder.vDelimiterLine.setVisibility(View.GONE);
 103                     holder.vDelimiterThick.setVisibility(View.VISIBLE);
 104                 }
 105                 else {
 106                     holder.tvDelimiterMonth.setVisibility(View.GONE);
 107                     //                holder.vDelimiterLine.setBackgroundResource(R.drawable
 108                     //                .dashed_border_1dp);
 109                     holder.vDelimiterLine.setVisibility(View.VISIBLE);
 110                     holder.vDelimiterThick.setVisibility(View.GONE);
 111                 }
 112                 break;
 113         }
 114     }
 115
 116     @NonNull
 117     @Override
 118     public TransactionRowHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
 119 //        debug("perf", "onCreateViewHolder called");
 120         View row = LayoutInflater.from(parent.getContext())
 121                                  .inflate(R.layout.transaction_list_row, parent, false);
 122         return new TransactionRowHolder(row);
 123     }
 124
 125     @Override
 126     public int getItemCount() {
 127         return Data.transactions.size();
 128     }
 129     enum LoaderStep {HEAD, ACCOUNTS, DONE}
 130
 131     private static class TransactionLoader
 132             extends AsyncTask<TransactionLoaderParams, TransactionLoaderStep, Void> {
 133         @Override
 134         protected Void doInBackground(TransactionLoaderParams... p) {
 135             LedgerTransaction tr = p[0].transaction;
 136             boolean odd = p[0].odd;
 137
 138             SQLiteDatabase db = App.getDatabase();
 139             tr.loadData(db);
 140
 141             publishProgress(new TransactionLoaderStep(p[0].holder, p[0].position, tr, odd));
 142
 143             int rowIndex = 0;
 144             // FIXME ConcurrentModificationException in ArrayList$ltr.next (ArrayList.java:831)
 145             for (LedgerTransactionAccount acc : tr.getAccounts()) {
 146 //                debug(c.getAccountName(), acc.getAmount()));
 147                 publishProgress(new TransactionLoaderStep(p[0].holder, acc, rowIndex++,
 148                         p[0].boldAccountName));
 149             }
 150
 151             publishProgress(new TransactionLoaderStep(p[0].holder, p[0].position, rowIndex));
 152
 153             return null;
 154         }
 155         @Override
 156         protected void onProgressUpdate(TransactionLoaderStep... values) {
 157             super.onProgressUpdate(values);
 158             TransactionLoaderStep step = values[0];
 159             TransactionRowHolder holder = step.getHolder();
 160
 161             switch (step.getStep()) {
 162                 case HEAD:
 163                     holder.tvDescription.setText(step.getTransaction()
 164                                                      .getDescription());
 165
 166                     if (step.isOdd())
 167                         holder.row.setBackgroundColor(Colors.tableRowDarkBG);
 168                     else
 169                         holder.row.setBackgroundColor(Colors.tableRowLightBG);
 170
 171                     break;
 172                 case ACCOUNTS:
 173                     int rowIndex = step.getAccountPosition();
 174                     Context ctx = holder.row.getContext();
 175                     LinearLayout row = (LinearLayout) holder.tableAccounts.getChildAt(rowIndex);
 176                     if (row == null) {
 177                         LayoutInflater inflater = ((Activity) ctx).getLayoutInflater();
 178                         row = (LinearLayout) inflater.inflate(
 179                                 R.layout.transaction_list_row_accounts_table_row, null);
 180                         // if the rootView above is given (and the line below is spared)
 181                         // the accounts remain with their default text (set in the layout resource)
 182                         holder.tableAccounts.addView(row);
 183                     }
 184                     TextView accName = row.findViewById(R.id.transaction_list_acc_row_acc_name);
 185                     TextView accComment =
 186                             row.findViewById(R.id.transaction_list_acc_row_acc_comment);
 187                     TextView accAmount = row.findViewById(R.id.transaction_list_acc_row_acc_amount);
 188                     LedgerTransactionAccount acc = step.getAccount();
 189
 190
 191 //                    debug("tmp", String.format("showing acc row %d: %s %1.2f", rowIndex,
 192 //                            acc.getAccountName(), acc.getAmount()));
 193
 194                     String boldAccountName = step.getBoldAccountName();
 195                     if ((boldAccountName != null) && acc.getAccountName()
 196                                                         .startsWith(boldAccountName))
 197                     {
 198                         accName.setTextColor(Colors.accent);
 199                         accAmount.setTextColor(Colors.accent);
 200
 201                         SpannableString ss = new SpannableString(acc.getAccountName());
 202                         ss.setSpan(new StyleSpan(Typeface.BOLD), 0, boldAccountName.length(),
 203                                 Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
 204                         accName.setText(ss);
 205                     }
 206                     else {
 207                         accName.setTextColor(Colors.defaultTextColor);
 208                         accAmount.setTextColor(Colors.defaultTextColor);
 209                         accName.setText(acc.getAccountName());
 210                     }
 211
 212                     String comment = acc.getComment();
 213                     if (comment != null && !comment.isEmpty()) {
 214                         accComment.setText(comment);
 215                         accComment.setVisibility(View.VISIBLE);
 216                     }
 217                     else {
 218                         accComment.setVisibility(View.GONE);
 219                     }
 220                     accAmount.setText(acc.toString());
 221
 222                     break;
 223                 case DONE:
 224                     int accCount = step.getAccountCount();
 225                     if (holder.tableAccounts.getChildCount() > accCount) {
 226                         holder.tableAccounts.removeViews(accCount,
 227                                 holder.tableAccounts.getChildCount() - accCount);
 228                     }
 229
 230 //                    debug("transactions",
 231 //                            String.format("Position %d fill done", step.getPosition()));
 232             }
 233         }
 234     }
 235
 236     private class TransactionLoaderParams {
 237         LedgerTransaction transaction;
 238         TransactionRowHolder holder;
 239         int position;
 240         String boldAccountName;
 241         boolean odd;
 242         TransactionLoaderParams(LedgerTransaction transaction, TransactionRowHolder holder,
 243                                 int position, String boldAccountName, boolean odd) {
 244             this.transaction = transaction;
 245             this.holder = holder;
 246             this.position = position;
 247             this.boldAccountName = boldAccountName;
 248             this.odd = odd;
 249         }
 250     }
 251 }