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         // in a race when transaction value is reduced, but the model hasn't been notified yet
  52         // the view will disappear when the notifications reaches the model, so by simply omitting
  53         // the out-of-range get() call nothing bad happens - just a to-be-deleted view remains
  54         // a bit longer
  55         if (item == null) return;
  56
  57         if (item.getType() == TransactionListItem.Type.TRANSACTION) {
  58             holder.vTransaction.setVisibility(View.VISIBLE);
  59             holder.vDelimiter.setVisibility(View.GONE);
  60             LedgerTransaction tr = item.getTransaction();
  61
  62 //        Log.d("transactions", String.format("Filling position %d with %d accounts", position,
  63 //                tr.getAccounts().size()));
  64
  65             TransactionLoader loader = new TransactionLoader();
  66             loader.execute(new TransactionLoaderParams(tr, holder, position, boldAccountName));
  67
  68             // WORKAROUND what seems to be a bug in CardHolder somewhere
  69             // when a view that was previously holding a delimiter is re-purposed
  70             // occasionally it stays too short (not high enough)
  71             holder.vTransaction.measure(View.MeasureSpec
  72                             .makeMeasureSpec(holder.itemView.getWidth(), View.MeasureSpec.EXACTLY),
  73                     View.MeasureSpec.makeMeasureSpec(0, View.MeasureSpec.UNSPECIFIED));
  74         }
  75         else {
  76             Date date = item.getDate();
  77             holder.vTransaction.setVisibility(View.GONE);
  78             holder.vDelimiter.setVisibility(View.VISIBLE);
  79             holder.tvDelimiterDate.setText(DateFormat.getDateInstance().format(date));
  80             if (item.isMonthShown()) {
  81                 holder.tvDelimiterMonth.setText(Globals.monthNames[date.getMonth()]);
  82                 holder.tvDelimiterMonth.setVisibility(View.VISIBLE);
  83                 holder.vDelimiterLine.setBackgroundResource(R.drawable.dashed_border_8dp);
  84             }
  85             else {
  86                 holder.tvDelimiterMonth.setVisibility(View.GONE);
  87                 holder.vDelimiterLine.setBackgroundResource(R.drawable.dashed_border_1dp);
  88             }
  89         }
  90     }
  91
  92     @NonNull
  93     @Override
  94     public TransactionRowHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
  95 //        Log.d("perf", "onCreateViewHolder called");
  96         View row = LayoutInflater.from(parent.getContext())
  97                 .inflate(R.layout.transaction_list_row, parent, false);
  98         return new TransactionRowHolder(row);
  99     }
 100
 101     @Override
 102     public int getItemCount() {
 103         return TransactionListViewModel.getTransactionCount();
 104     }
 105     public void setBoldAccountName(String boldAccountName) {
 106         this.boldAccountName = boldAccountName;
 107     }
 108     public void resetBoldAccountName() {
 109         this.boldAccountName = null;
 110     }
 111
 112     enum LoaderStep {HEAD, ACCOUNTS, DONE}
 113
 114     private static class TransactionLoader
 115             extends AsyncTask<TransactionLoaderParams, TransactionLoaderStep, Void> {
 116         @Override
 117         protected Void doInBackground(TransactionLoaderParams... p) {
 118             LedgerTransaction tr = p[0].transaction;
 119
 120             SQLiteDatabase db = MLDB.getReadableDatabase();
 121             tr.loadData(db);
 122
 123             publishProgress(new TransactionLoaderStep(p[0].holder, p[0].position, tr));
 124
 125             int rowIndex = 0;
 126             for (LedgerTransactionAccount acc : tr.getAccounts()) {
 127 //                Log.d(c.getAccountName(), acc.getAmount()));
 128                 publishProgress(new TransactionLoaderStep(p[0].holder, acc, rowIndex++,
 129                         p[0].boldAccountName));
 130             }
 131
 132             publishProgress(new TransactionLoaderStep(p[0].holder, p[0].position, rowIndex));
 133
 134             return null;
 135         }
 136         @Override
 137         protected void onProgressUpdate(TransactionLoaderStep... values) {
 138             super.onProgressUpdate(values);
 139             TransactionLoaderStep step = values[0];
 140             TransactionRowHolder holder = step.getHolder();
 141
 142             switch (step.getStep()) {
 143                 case HEAD:
 144                     holder.tvDescription.setText(step.getTransaction().getDescription());
 145
 146                     if (step.getPosition() % 2 == 0) {
 147                         holder.row.setBackgroundColor(Globals.tableRowEvenBG);
 148                     }
 149                     else {
 150                         holder.row.setBackgroundColor(Globals.tableRowOddBG);
 151                     }
 152
 153                     break;
 154                 case ACCOUNTS:
 155                     int rowIndex = step.getAccountPosition();
 156                     Context ctx = holder.row.getContext();
 157                     LinearLayout row = (LinearLayout) holder.tableAccounts.getChildAt(rowIndex);
 158                     TextView accName, accAmount;
 159                     if (row == null) {
 160                         row = new LinearLayout(ctx);
 161                         row.setLayoutParams(new LinearLayout.LayoutParams(
 162                                 LinearLayout.LayoutParams.MATCH_PARENT,
 163                                 LinearLayout.LayoutParams.WRAP_CONTENT));
 164                         row.setGravity(Gravity.CENTER_VERTICAL);
 165                         row.setOrientation(LinearLayout.HORIZONTAL);
 166                         row.setPaddingRelative(dp2px(ctx, 8), 0, 0, 0);
 167                         accName = new AppCompatTextView(ctx);
 168                         accName.setLayoutParams(new LinearLayout.LayoutParams(0,
 169                                 LinearLayout.LayoutParams.WRAP_CONTENT, 5f));
 170                         accName.setTextAlignment(View.TEXT_ALIGNMENT_VIEW_START);
 171                         row.addView(accName);
 172                         accAmount = new AppCompatTextView(ctx);
 173                         LinearLayout.LayoutParams llp = new LinearLayout.LayoutParams(
 174                                 LinearLayout.LayoutParams.WRAP_CONTENT,
 175                                 LinearLayout.LayoutParams.WRAP_CONTENT);
 176                         llp.setMarginEnd(0);
 177                         accAmount.setLayoutParams(llp);
 178                         accAmount.setTextAlignment(View.TEXT_ALIGNMENT_VIEW_END);
 179                         accAmount.setMinWidth(dp2px(ctx, 60));
 180                         row.addView(accAmount);
 181                         holder.tableAccounts.addView(row);
 182                     }
 183                     else {
 184                         accName = (TextView) row.getChildAt(0);
 185                         accAmount = (TextView) row.getChildAt(1);
 186                     }
 187                     LedgerTransactionAccount acc = step.getAccount();
 188
 189                     accName.setText(acc.getAccountName());
 190                     accAmount.setText(acc.toString());
 191
 192 //                    Log.d("tmp", String.format("showing acc row %d: %s %1.2f", rowIndex,
 193 //                            acc.getAccountName(), acc.getAmount()));
 194
 195                     String boldAccountName = step.getBoldAccountName();
 196                     if ((boldAccountName != null) && boldAccountName.equals(acc.getAccountName())) {
 197                         accName.setTypeface(null, Typeface.BOLD);
 198                         accAmount.setTypeface(null, Typeface.BOLD);
 199                         accName.setTextColor(Globals.primaryDark);
 200                         accAmount.setTextColor(Globals.primaryDark);
 201                     }
 202                     else {
 203                         accName.setTypeface(null, Typeface.NORMAL);
 204                         accAmount.setTypeface(null, Typeface.NORMAL);
 205                         accName.setTextColor(Globals.defaultTextColor);
 206                         accAmount.setTextColor(Globals.defaultTextColor);
 207                     }
 208
 209                     break;
 210                 case DONE:
 211                     int accCount = step.getAccountCount();
 212                     if (holder.tableAccounts.getChildCount() > accCount) {
 213                         holder.tableAccounts.removeViews(accCount,
 214                                 holder.tableAccounts.getChildCount() - accCount);
 215                     }
 216
 217 //                    Log.d("transactions",
 218 //                            String.format("Position %d fill done", step.getPosition()));
 219             }
 220         }
 221     }
 222
 223     private class TransactionLoaderParams {
 224         LedgerTransaction transaction;
 225         TransactionRowHolder holder;
 226         int position;
 227         String boldAccountName;
 228         TransactionLoaderParams(LedgerTransaction transaction, TransactionRowHolder holder,
 229                                 int position, String boldAccountName) {
 230             this.transaction = transaction;
 231             this.holder = holder;
 232             this.position = position;
 233             this.boldAccountName = boldAccountName;
 234         }
 235     }
 236 }