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

   1 /*
   2  * Copyright © 2019 Damyan Ivanov.
   3  * This file is part of Mobile-Ledger.
   4  * Mobile-Ledger 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  * Mobile-Ledger 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 Mobile-Ledger. 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.support.annotation.NonNull;
  25 import android.support.v7.widget.AppCompatTextView;
  26 import android.support.v7.widget.RecyclerView;
  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.R;
  35 import net.ktnx.mobileledger.model.LedgerTransaction;
  36 import net.ktnx.mobileledger.model.LedgerTransactionAccount;
  37 import net.ktnx.mobileledger.model.TransactionListItem;
  38 import net.ktnx.mobileledger.utils.Globals;
  39 import net.ktnx.mobileledger.utils.MLDB;
  40
  41 import java.text.DateFormat;
  42 import java.util.Date;
  43
  44 import static net.ktnx.mobileledger.utils.DimensionUtils.dp2px;
  45
  46 public class TransactionListAdapter extends RecyclerView.Adapter<TransactionRowHolder> {
  47     private String boldAccountName;
  48     public void onBindViewHolder(@NonNull TransactionRowHolder holder, int position) {
  49         TransactionListItem item = TransactionListViewModel.getTransactionListItem(position);
  50
  51         if (item.getType() == TransactionListItem.Type.TRANSACTION) {
  52             holder.vTransaction.setVisibility(View.VISIBLE);
  53             holder.vDelimiter.setVisibility(View.GONE);
  54             LedgerTransaction tr = item.getTransaction();
  55             // in a race when transaction value is reduced, but the model hasn't been notified yet
  56             // the view will disappear when the notifications reaches the model, so by simply omitting
  57             // the out-of-range get() call nothing bad happens - just a to-be-deleted view remains
  58             // a bit longer
  59             if (tr == null) return;
  60
  61             LedgerTransaction previous = null;
  62             TransactionListItem previousItem = null;
  63             if (position > 0)
  64                 previousItem = TransactionListViewModel.getTransactionListItem(position - 1);
  65
  66 //        Log.d("transactions", String.format("Filling position %d with %d accounts", position,
  67 //                tr.getAccounts().size()));
  68
  69             TransactionLoader loader = new TransactionLoader();
  70             loader.execute(
  71                     new TransactionLoaderParams(tr, previous, holder, position, boldAccountName));
  72
  73             // WORKAROUND what seems to be a bug in CardHolder somewhere
  74             // when a view that was previously holding a delimiter is re-purposed
  75             // occasionally it stays too short (not high enough)
  76             holder.vTransaction.measure(View.MeasureSpec
  77                             .makeMeasureSpec(holder.itemView.getWidth(), View.MeasureSpec.EXACTLY),
  78                     View.MeasureSpec.makeMeasureSpec(0, View.MeasureSpec.UNSPECIFIED));
  79         }
  80         else {
  81             Date date = item.getDate();
  82             holder.vTransaction.setVisibility(View.GONE);
  83             holder.vDelimiter.setVisibility(View.VISIBLE);
  84             holder.tvDelimiterDate.setText(DateFormat.getDateInstance().format(date));
  85             holder.tvDelimiterMonth
  86                     .setText(item.isMonthShown() ? Globals.monthNames[date.getMonth()] : "");
  87         }
  88     }
  89
  90     @NonNull
  91     @Override
  92     public TransactionRowHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
  93 //        Log.d("perf", "onCreateViewHolder called");
  94         View row = LayoutInflater.from(parent.getContext())
  95                 .inflate(R.layout.transaction_list_row, parent, false);
  96         return new TransactionRowHolder(row);
  97     }
  98
  99     @Override
 100     public int getItemCount() {
 101         return TransactionListViewModel.getTransactionCount();
 102     }
 103     public void setBoldAccountName(String boldAccountName) {
 104         this.boldAccountName = boldAccountName;
 105     }
 106     public void resetBoldAccountName() {
 107         this.boldAccountName = null;
 108     }
 109
 110     enum LoaderStep {HEAD, ACCOUNTS, DONE}
 111
 112     private static class TransactionLoader
 113             extends AsyncTask<TransactionLoaderParams, TransactionLoaderStep, Void> {
 114         @Override
 115         protected Void doInBackground(TransactionLoaderParams... p) {
 116             LedgerTransaction tr = p[0].transaction;
 117             LedgerTransaction previous = p[0].previousTransaction;
 118
 119             SQLiteDatabase db = MLDB.getReadableDatabase();
 120             tr.loadData(db);
 121
 122             boolean showDate;
 123             if (previous == null) showDate = true;
 124             else {
 125                 previous.loadData(db);
 126                 showDate = !previous.getDate().equals(tr.getDate());
 127             }
 128             publishProgress(new TransactionLoaderStep(p[0].holder, p[0].position, tr, showDate));
 129
 130             int rowIndex = 0;
 131             for (LedgerTransactionAccount acc : tr.getAccounts()) {
 132 //                Log.d(c.getAccountName(), acc.getAmount()));
 133                 publishProgress(new TransactionLoaderStep(p[0].holder, acc, rowIndex++,
 134                         p[0].boldAccountName));
 135             }
 136
 137             publishProgress(new TransactionLoaderStep(p[0].holder, p[0].position, rowIndex));
 138
 139             return null;
 140         }
 141         @Override
 142         protected void onProgressUpdate(TransactionLoaderStep... values) {
 143             super.onProgressUpdate(values);
 144             TransactionLoaderStep step = values[0];
 145             TransactionRowHolder holder = step.getHolder();
 146
 147             switch (step.getStep()) {
 148                 case HEAD:
 149                     holder.tvDescription.setText(step.getTransaction().getDescription());
 150
 151                     if (step.getPosition() % 2 == 0) {
 152                         holder.row.setBackgroundColor(Globals.tableRowEvenBG);
 153                     }
 154                     else {
 155                         holder.row.setBackgroundColor(Globals.tableRowOddBG);
 156                     }
 157
 158                     break;
 159                 case ACCOUNTS:
 160                     int rowIndex = step.getAccountPosition();
 161                     Context ctx = holder.row.getContext();
 162                     LinearLayout row = (LinearLayout) holder.tableAccounts.getChildAt(rowIndex);
 163                     TextView accName, accAmount;
 164                     if (row == null) {
 165                         row = new LinearLayout(ctx);
 166                         row.setLayoutParams(new LinearLayout.LayoutParams(
 167                                 LinearLayout.LayoutParams.MATCH_PARENT,
 168                                 LinearLayout.LayoutParams.WRAP_CONTENT));
 169                         row.setGravity(Gravity.CENTER_VERTICAL);
 170                         row.setOrientation(LinearLayout.HORIZONTAL);
 171                         row.setPaddingRelative(dp2px(ctx, 8), 0, 0, 0);
 172                         accName = new AppCompatTextView(ctx);
 173                         accName.setLayoutParams(new LinearLayout.LayoutParams(0,
 174                                 LinearLayout.LayoutParams.WRAP_CONTENT, 5f));
 175                         accName.setTextAlignment(View.TEXT_ALIGNMENT_VIEW_START);
 176                         row.addView(accName);
 177                         accAmount = new AppCompatTextView(ctx);
 178                         LinearLayout.LayoutParams llp = new LinearLayout.LayoutParams(
 179                                 LinearLayout.LayoutParams.WRAP_CONTENT,
 180                                 LinearLayout.LayoutParams.WRAP_CONTENT);
 181                         llp.setMarginEnd(0);
 182                         accAmount.setLayoutParams(llp);
 183                         accAmount.setTextAlignment(View.TEXT_ALIGNMENT_VIEW_END);
 184                         accAmount.setMinWidth(dp2px(ctx, 60));
 185                         row.addView(accAmount);
 186                         holder.tableAccounts.addView(row);
 187                     }
 188                     else {
 189                         accName = (TextView) row.getChildAt(0);
 190                         accAmount = (TextView) row.getChildAt(1);
 191                     }
 192                     LedgerTransactionAccount acc = step.getAccount();
 193
 194                     accName.setText(acc.getAccountName());
 195                     accAmount.setText(acc.toString());
 196
 197 //                    Log.d("tmp", String.format("showing acc row %d: %s %1.2f", rowIndex,
 198 //                            acc.getAccountName(), acc.getAmount()));
 199
 200                     String boldAccountName = step.getBoldAccountName();
 201                     if ((boldAccountName != null) && boldAccountName.equals(acc.getAccountName())) {
 202                         accName.setTypeface(null, Typeface.BOLD);
 203                         accAmount.setTypeface(null, Typeface.BOLD);
 204                         accName.setTextColor(Globals.primaryDark);
 205                         accAmount.setTextColor(Globals.primaryDark);
 206                     }
 207                     else {
 208                         accName.setTypeface(null, Typeface.NORMAL);
 209                         accAmount.setTypeface(null, Typeface.NORMAL);
 210                         accName.setTextColor(Globals.defaultTextColor);
 211                         accAmount.setTextColor(Globals.defaultTextColor);
 212                     }
 213
 214                     break;
 215                 case DONE:
 216                     int accCount = step.getAccountCount();
 217                     if (holder.tableAccounts.getChildCount() > accCount) {
 218                         holder.tableAccounts.removeViews(accCount,
 219                                 holder.tableAccounts.getChildCount() - accCount);
 220                     }
 221
 222 //                    Log.d("transactions",
 223 //                            String.format("Position %d fill done", step.getPosition()));
 224             }
 225         }
 226     }
 227
 228     private class TransactionLoaderParams {
 229         LedgerTransaction transaction, previousTransaction;
 230         TransactionRowHolder holder;
 231         int position;
 232         String boldAccountName;
 233         TransactionLoaderParams(LedgerTransaction transaction, TransactionRowHolder holder, int position, String boldAccountName) {
 234             this(transaction, null, holder, position, boldAccountName);
 235         }
 236         TransactionLoaderParams(LedgerTransaction transaction,
 237                                 LedgerTransaction previousTransaction, TransactionRowHolder holder,
 238                                 int position, String boldAccountName) {
 239             this.transaction = transaction;
 240             this.previousTransaction = previousTransaction;
 241             this.holder = holder;
 242             this.position = position;
 243             this.boldAccountName = boldAccountName;
 244         }
 245     }
 246 }