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 net.ktnx.mobileledger.App;
  35 import net.ktnx.mobileledger.R;
  36 import net.ktnx.mobileledger.model.Data;
  37 import net.ktnx.mobileledger.model.LedgerTransaction;
  38 import net.ktnx.mobileledger.model.LedgerTransactionAccount;
  39 import net.ktnx.mobileledger.model.TransactionListItem;
  40 import net.ktnx.mobileledger.utils.Colors;
  41 import net.ktnx.mobileledger.utils.Globals;
  42
  43 import java.text.DateFormat;
  44 import java.util.Date;
  45 import java.util.GregorianCalendar;
  46 import java.util.TimeZone;
  47
  48 import androidx.annotation.NonNull;
  49 import androidx.appcompat.widget.AppCompatTextView;
  50 import androidx.recyclerview.widget.RecyclerView;
  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) return;
  63
  64         switch (item.getType()) {
  65             case TRANSACTION:
  66                 holder.vTransaction.setVisibility(View.VISIBLE);
  67                 holder.vDelimiter.setVisibility(View.GONE);
  68                 LedgerTransaction tr = item.getTransaction();
  69
  70                 //        debug("transactions", String.format("Filling position %d with %d accounts", position,
  71                 //                tr.getAccounts().size()));
  72
  73                 TransactionLoader loader = new TransactionLoader();
  74                 loader.executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR,
  75                         new TransactionLoaderParams(tr, holder, position, Data.accountFilter.getValue(),
  76                                 item.isOdd()));
  77
  78                 // WORKAROUND what seems to be a bug in CardHolder somewhere
  79                 // when a view that was previously holding a delimiter is re-purposed
  80                 // occasionally it stays too short (not high enough)
  81                 holder.vTransaction.measure(View.MeasureSpec
  82                                 .makeMeasureSpec(holder.itemView.getWidth(), View.MeasureSpec.EXACTLY),
  83                         View.MeasureSpec.makeMeasureSpec(0, View.MeasureSpec.UNSPECIFIED));
  84                 break;
  85             case DELIMITER:
  86                 Date date = item.getDate();
  87                 holder.vTransaction.setVisibility(View.GONE);
  88                 holder.vDelimiter.setVisibility(View.VISIBLE);
  89                 holder.tvDelimiterDate.setText(DateFormat.getDateInstance().format(date));
  90                 if (item.isMonthShown()) {
  91                     GregorianCalendar cal = new GregorianCalendar(TimeZone.getDefault());
  92                     cal.setTime(date);
  93                     holder.tvDelimiterMonth
  94                             .setText(Globals.monthNames[cal.get(GregorianCalendar.MONTH)]);
  95                     holder.tvDelimiterMonth.setVisibility(View.VISIBLE);
  96                     //                holder.vDelimiterLine.setBackgroundResource(R.drawable.dashed_border_8dp);
  97                     holder.vDelimiterLine.setVisibility(View.GONE);
  98                     holder.vDelimiterThick.setVisibility(View.VISIBLE);
  99                 }
 100                 else {
 101                     holder.tvDelimiterMonth.setVisibility(View.GONE);
 102                     //                holder.vDelimiterLine.setBackgroundResource(R.drawable.dashed_border_1dp);
 103                     holder.vDelimiterLine.setVisibility(View.VISIBLE);
 104                     holder.vDelimiterThick.setVisibility(View.GONE);
 105                 }
 106                 break;
 107         }
 108     }
 109
 110     @NonNull
 111     @Override
 112     public TransactionRowHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
 113 //        debug("perf", "onCreateViewHolder called");
 114         View row = LayoutInflater.from(parent.getContext())
 115                 .inflate(R.layout.transaction_list_row, parent, false);
 116         return new TransactionRowHolder(row);
 117     }
 118
 119     @Override
 120     public int getItemCount() {
 121         return Data.transactions.size();
 122     }
 123     enum LoaderStep {HEAD, ACCOUNTS, DONE}
 124     private static class TransactionLoader
 125             extends AsyncTask<TransactionLoaderParams, TransactionLoaderStep, Void> {
 126         @Override
 127         protected Void doInBackground(TransactionLoaderParams... p) {
 128             LedgerTransaction tr = p[0].transaction;
 129             boolean odd = p[0].odd;
 130
 131             SQLiteDatabase db = App.getDatabase();
 132             tr.loadData(db);
 133
 134             publishProgress(new TransactionLoaderStep(p[0].holder, p[0].position, tr, odd));
 135
 136             int rowIndex = 0;
 137             // FIXME ConcurrentModificationException in ArrayList$ltr.next (ArrayList.java:831)
 138             for (LedgerTransactionAccount acc : tr.getAccounts()) {
 139 //                debug(c.getAccountName(), acc.getAmount()));
 140                 publishProgress(new TransactionLoaderStep(p[0].holder, acc, rowIndex++,
 141                         p[0].boldAccountName));
 142             }
 143
 144             publishProgress(new TransactionLoaderStep(p[0].holder, p[0].position, rowIndex));
 145
 146             return null;
 147         }
 148         @Override
 149         protected void onProgressUpdate(TransactionLoaderStep... values) {
 150             super.onProgressUpdate(values);
 151             TransactionLoaderStep step = values[0];
 152             TransactionRowHolder holder = step.getHolder();
 153
 154             switch (step.getStep()) {
 155                 case HEAD:
 156                     holder.tvDescription.setText(step.getTransaction().getDescription());
 157
 158                     if (step.isOdd()) holder.row.setBackgroundColor(Colors.tableRowDarkBG);
 159                     else holder.row.setBackgroundColor(Colors.tableRowLightBG);
 160
 161                     break;
 162                 case ACCOUNTS:
 163                     int rowIndex = step.getAccountPosition();
 164                     Context ctx = holder.row.getContext();
 165                     LinearLayout row = (LinearLayout) holder.tableAccounts.getChildAt(rowIndex);
 166                     TextView accName, accAmount;
 167                     if (row == null) {
 168                         row = new LinearLayout(ctx);
 169                         row.setLayoutParams(new LinearLayout.LayoutParams(
 170                                 LinearLayout.LayoutParams.MATCH_PARENT,
 171                                 LinearLayout.LayoutParams.WRAP_CONTENT));
 172                         row.setGravity(Gravity.CENTER_VERTICAL);
 173                         row.setOrientation(LinearLayout.HORIZONTAL);
 174                         row.setPaddingRelative(dp2px(ctx, 8), 0, 0, 0);
 175                         accName = new AppCompatTextView(ctx);
 176                         accName.setLayoutParams(new LinearLayout.LayoutParams(0,
 177                                 LinearLayout.LayoutParams.WRAP_CONTENT, 5f));
 178                         accName.setTextAlignment(View.TEXT_ALIGNMENT_VIEW_START);
 179                         row.addView(accName);
 180                         accAmount = new AppCompatTextView(ctx);
 181                         LinearLayout.LayoutParams llp = new LinearLayout.LayoutParams(
 182                                 LinearLayout.LayoutParams.WRAP_CONTENT,
 183                                 LinearLayout.LayoutParams.WRAP_CONTENT);
 184                         llp.setMarginEnd(0);
 185                         accAmount.setLayoutParams(llp);
 186                         accAmount.setTextAlignment(View.TEXT_ALIGNMENT_VIEW_END);
 187                         accAmount.setMinWidth(dp2px(ctx, 60));
 188                         row.addView(accAmount);
 189                         holder.tableAccounts.addView(row);
 190                     }
 191                     else {
 192                         accName = (TextView) row.getChildAt(0);
 193                         accAmount = (TextView) row.getChildAt(1);
 194                     }
 195                     LedgerTransactionAccount acc = step.getAccount();
 196
 197
 198 //                    debug("tmp", String.format("showing acc row %d: %s %1.2f", rowIndex,
 199 //                            acc.getAccountName(), acc.getAmount()));
 200
 201                     String boldAccountName = step.getBoldAccountName();
 202                     if ((boldAccountName != null) &&
 203                         acc.getAccountName().startsWith(boldAccountName))
 204                     {
 205                         accName.setTextColor(Colors.accent);
 206                         accAmount.setTextColor(Colors.accent);
 207
 208                         SpannableString ss = new SpannableString(acc.getAccountName());
 209                         ss.setSpan(new StyleSpan(Typeface.BOLD), 0, boldAccountName.length(),
 210                                 Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
 211                         accName.setText(ss);
 212                     }
 213                     else {
 214                         accName.setTextColor(Colors.defaultTextColor);
 215                         accAmount.setTextColor(Colors.defaultTextColor);
 216                         accName.setText(acc.getAccountName());
 217                     }
 218                     accAmount.setText(acc.toString());
 219
 220                     break;
 221                 case DONE:
 222                     int accCount = step.getAccountCount();
 223                     if (holder.tableAccounts.getChildCount() > accCount) {
 224                         holder.tableAccounts.removeViews(accCount,
 225                                 holder.tableAccounts.getChildCount() - accCount);
 226                     }
 227
 228 //                    debug("transactions",
 229 //                            String.format("Position %d fill done", step.getPosition()));
 230             }
 231         }
 232     }
 233
 234     private class TransactionLoaderParams {
 235         LedgerTransaction transaction;
 236         TransactionRowHolder holder;
 237         int position;
 238         String boldAccountName;
 239         boolean odd;
 240         TransactionLoaderParams(LedgerTransaction transaction, TransactionRowHolder holder,
 241                                 int position, String boldAccountName, boolean odd) {
 242             this.transaction = transaction;
 243             this.holder = holder;
 244             this.position = position;
 245             this.boldAccountName = boldAccountName;
 246             this.odd = odd;
 247         }
 248     }
 249 }