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.util.Log;
  28 import android.view.Gravity;
  29 import android.view.LayoutInflater;
  30 import android.view.View;
  31 import android.view.ViewGroup;
  32 import android.widget.LinearLayout;
  33 import android.widget.TextView;
  34
  35 import net.ktnx.mobileledger.R;
  36 import net.ktnx.mobileledger.model.LedgerTransaction;
  37 import net.ktnx.mobileledger.model.LedgerTransactionAccount;
  38 import net.ktnx.mobileledger.utils.Globals;
  39 import net.ktnx.mobileledger.utils.MLDB;
  40
  41 import static net.ktnx.mobileledger.utils.DimensionUtils.dp2px;
  42
  43 public class TransactionListAdapter extends RecyclerView.Adapter<TransactionRowHolder> {
  44     private String boldAccountName;
  45     public void onBindViewHolder(@NonNull TransactionRowHolder holder, int position) {
  46         LedgerTransaction tr = TransactionListViewModel.getTransaction(position);
  47         // in a race when transaction value is reduced, but the model hasn't been notified yet
  48         // the view will disappear when the notifications reaches the model, so by simply omitting
  49         // the out-of-range get() call nothing bad happens - just a to-be-deleted view remains
  50         // a bit longer
  51         if (tr == null) return;
  52
  53         Log.d("transactions", String.format("Filling position %d with %d accounts", position,
  54                 tr.getAccounts().size()));
  55
  56         TransactionLoader loader = new TransactionLoader();
  57         loader.execute(new TransactionLoaderParams(tr, holder, position, boldAccountName));
  58     }
  59
  60     @NonNull
  61     @Override
  62     public TransactionRowHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
  63         Log.d("perf", "onCreateViewHolder called");
  64         View row = LayoutInflater.from(parent.getContext())
  65                 .inflate(R.layout.transaction_list_row, parent, false);
  66         return new TransactionRowHolder(row);
  67     }
  68
  69     @Override
  70     public int getItemCount() {
  71         return TransactionListViewModel.getTransactionCount();
  72     }
  73     public void setBoldAccountName(String boldAccountName) {
  74         this.boldAccountName = boldAccountName;
  75     }
  76     public void resetBoldAccountName() {
  77         this.boldAccountName = null;
  78     }
  79
  80     enum LoaderStep {HEAD, ACCOUNTS, DONE}
  81
  82     private static class TransactionLoader
  83             extends AsyncTask<TransactionLoaderParams, TransactionLoaderStep, Void> {
  84         @Override
  85         protected Void doInBackground(TransactionLoaderParams... p) {
  86             LedgerTransaction tr = p[0].transaction;
  87
  88             SQLiteDatabase db = MLDB.getReadableDatabase();
  89             tr.loadData(db);
  90
  91             publishProgress(new TransactionLoaderStep(p[0].holder, p[0].position, tr));
  92
  93             int rowIndex = 0;
  94             for (LedgerTransactionAccount acc : tr.getAccounts()) {
  95                 Log.d("tmp", String.format("publishing tr %d acc %s %1.2f", tr.getId(),
  96                         acc.getAccountName(), acc.getAmount()));
  97                 publishProgress(new TransactionLoaderStep(p[0].holder, acc, rowIndex++,
  98                         p[0].boldAccountName));
  99             }
 100
 101             publishProgress(new TransactionLoaderStep(p[0].holder, p[0].position, rowIndex));
 102
 103             return null;
 104         }
 105         @Override
 106         protected void onProgressUpdate(TransactionLoaderStep... values) {
 107             super.onProgressUpdate(values);
 108             TransactionLoaderStep step = values[0];
 109             TransactionRowHolder holder = step.getHolder();
 110
 111             switch (step.getStep()) {
 112                 case HEAD:
 113                     holder.tvDescription.setText(step.getTransaction().getDescription());
 114                     holder.tvDate.setText(step.getTransaction().getDate());
 115
 116                     if (step.getPosition() % 2 == 0) {
 117                         holder.row.setBackgroundColor(Globals.table_row_even_bg);
 118                     }
 119                     else {
 120                         holder.row.setBackgroundColor(Globals.table_row_odd_bg);
 121                     }
 122
 123                     break;
 124                 case ACCOUNTS:
 125                     int rowIndex = step.getAccountPosition();
 126                     Context ctx = holder.row.getContext();
 127                     LinearLayout row = (LinearLayout) holder.tableAccounts.getChildAt(rowIndex);
 128                     TextView accName, accAmount;
 129                     if (row == null) {
 130                         row = new LinearLayout(ctx);
 131                         row.setLayoutParams(new LinearLayout.LayoutParams(
 132                                 LinearLayout.LayoutParams.MATCH_PARENT,
 133                                 LinearLayout.LayoutParams.WRAP_CONTENT));
 134                         row.setGravity(Gravity.CENTER_VERTICAL);
 135                         row.setOrientation(LinearLayout.HORIZONTAL);
 136                         row.setPaddingRelative(dp2px(ctx, 8), 0, 0, 0);
 137                         accName = new AppCompatTextView(ctx);
 138                         accName.setLayoutParams(new LinearLayout.LayoutParams(0,
 139                                 LinearLayout.LayoutParams.WRAP_CONTENT, 5f));
 140                         accName.setTextAlignment(View.TEXT_ALIGNMENT_VIEW_START);
 141                         row.addView(accName);
 142                         accAmount = new AppCompatTextView(ctx);
 143                         LinearLayout.LayoutParams llp = new LinearLayout.LayoutParams(
 144                                 LinearLayout.LayoutParams.WRAP_CONTENT,
 145                                 LinearLayout.LayoutParams.WRAP_CONTENT);
 146                         llp.setMarginEnd(0);
 147                         accAmount.setLayoutParams(llp);
 148                         accAmount.setTextAlignment(View.TEXT_ALIGNMENT_VIEW_END);
 149                         accAmount.setMinWidth(dp2px(ctx, 60));
 150                         row.addView(accAmount);
 151                         holder.tableAccounts.addView(row);
 152                     }
 153                     else {
 154                         accName = (TextView) row.getChildAt(0);
 155                         accAmount = (TextView) row.getChildAt(1);
 156                     }
 157                     LedgerTransactionAccount acc = step.getAccount();
 158
 159                     accName.setText(acc.getAccountName());
 160                     accAmount.setText(acc.toString());
 161
 162                     Log.d("tmp", String.format("showing acc row %d: %s %1.2f", rowIndex,
 163                             acc.getAccountName(), acc.getAmount()));
 164
 165                     String boldAccountName = step.getBoldAccountName();
 166                     if ((boldAccountName != null) && boldAccountName.equals(acc.getAccountName())) {
 167                         accName.setTypeface(null, Typeface.BOLD);
 168                         accAmount.setTypeface(null, Typeface.BOLD);
 169                         accName.setTextColor(Globals.primaryDark);
 170                         accAmount.setTextColor(Globals.primaryDark);
 171                     }
 172                     else {
 173                         accName.setTypeface(null, Typeface.NORMAL);
 174                         accAmount.setTypeface(null, Typeface.NORMAL);
 175                         accName.setTextColor(Globals.defaultTextColor);
 176                         accAmount.setTextColor(Globals.defaultTextColor);
 177                     }
 178
 179                     break;
 180                 case DONE:
 181                     int accCount = step.getAccountCount();
 182                     if (holder.tableAccounts.getChildCount() > accCount) {
 183                         holder.tableAccounts.removeViews(accCount,
 184                                 holder.tableAccounts.getChildCount() - accCount);
 185                     }
 186
 187                     Log.d("transactions",
 188                             String.format("Position %d fill done", step.getPosition()));
 189             }
 190         }
 191     }
 192
 193     private class TransactionLoaderParams {
 194         LedgerTransaction transaction;
 195         TransactionRowHolder holder;
 196         int position;
 197         String boldAccountName;
 198         TransactionLoaderParams(LedgerTransaction transaction, TransactionRowHolder holder,
 199                                 int position, String boldAccountName) {
 200             this.transaction = transaction;
 201             this.holder = holder;
 202             this.position = position;
 203             this.boldAccountName = boldAccountName;
 204         }
 205     }
 206 }