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

   1 /*
   2  * Copyright © 2018 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", position));
  54
  55         TransactionLoader loader = new TransactionLoader();
  56         loader.execute(new TransactionLoaderParams(tr, holder, position, boldAccountName));
  57     }
  58
  59     @NonNull
  60     @Override
  61     public TransactionRowHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
  62         Log.d("perf", "onCreateViewHolder called");
  63         View row = LayoutInflater.from(parent.getContext())
  64                 .inflate(R.layout.transaction_list_row, parent, false);
  65         return new TransactionRowHolder(row);
  66     }
  67
  68     @Override
  69     public int getItemCount() {
  70         return TransactionListViewModel.getTransactionCount();
  71     }
  72     public void setBoldAccountName(String boldAccountName) {
  73         this.boldAccountName = boldAccountName;
  74     }
  75     public void resetBoldAccountName() {
  76         this.boldAccountName = null;
  77     }
  78
  79     enum LoaderStep {HEAD, ACCOUNTS, DONE}
  80
  81     private static class TransactionLoader
  82             extends AsyncTask<TransactionLoaderParams, TransactionLoaderStep, Void> {
  83         @Override
  84         protected Void doInBackground(TransactionLoaderParams... p) {
  85             LedgerTransaction tr = p[0].transaction;
  86
  87             SQLiteDatabase db = MLDB.getReadableDatabase();
  88             tr.loadData(db);
  89
  90             publishProgress(new TransactionLoaderStep(p[0].holder, p[0].position, tr));
  91
  92             int rowIndex = 0;
  93             for (LedgerTransactionAccount acc : tr.getAccounts()) {
  94                 publishProgress(new TransactionLoaderStep(p[0].holder, acc, rowIndex++,
  95                         p[0].boldAccountName));
  96             }
  97
  98             publishProgress(new TransactionLoaderStep(p[0].holder, p[0].position, rowIndex));
  99
 100             return null;
 101         }
 102         @Override
 103         protected void onProgressUpdate(TransactionLoaderStep... values) {
 104             super.onProgressUpdate(values);
 105             TransactionLoaderStep step = values[0];
 106             TransactionRowHolder holder = step.getHolder();
 107
 108             switch (step.getStep()) {
 109                 case HEAD:
 110                     holder.tvDescription.setText(step.getTransaction().getDescription());
 111                     holder.tvDate.setText(step.getTransaction().getDate());
 112
 113                     if (step.getPosition() % 2 == 0) {
 114                         holder.row.setBackgroundColor(Globals.table_row_even_bg);
 115                     }
 116                     else {
 117                         holder.row.setBackgroundColor(Globals.table_row_odd_bg);
 118                     }
 119
 120                     break;
 121                 case ACCOUNTS:
 122                     int rowIndex = step.getAccountPosition();
 123                     Context ctx = holder.row.getContext();
 124                     LinearLayout row = (LinearLayout) holder.tableAccounts.getChildAt(rowIndex);
 125                     TextView accName, accAmount;
 126                     if (row == null) {
 127                         row = new LinearLayout(ctx);
 128                         row.setLayoutParams(new LinearLayout.LayoutParams(
 129                                 LinearLayout.LayoutParams.MATCH_PARENT,
 130                                 LinearLayout.LayoutParams.WRAP_CONTENT));
 131                         row.setGravity(Gravity.CENTER_VERTICAL);
 132                         row.setOrientation(LinearLayout.HORIZONTAL);
 133                         row.setPaddingRelative(dp2px(ctx, 8), 0, 0, 0);
 134                         accName = new AppCompatTextView(ctx);
 135                         accName.setLayoutParams(new LinearLayout.LayoutParams(0,
 136                                 LinearLayout.LayoutParams.WRAP_CONTENT, 5f));
 137                         accName.setTextAlignment(View.TEXT_ALIGNMENT_VIEW_START);
 138                         row.addView(accName);
 139                         accAmount = new AppCompatTextView(ctx);
 140                         LinearLayout.LayoutParams llp = new LinearLayout.LayoutParams(
 141                                 LinearLayout.LayoutParams.WRAP_CONTENT,
 142                                 LinearLayout.LayoutParams.WRAP_CONTENT);
 143                         llp.setMarginEnd(0);
 144                         accAmount.setLayoutParams(llp);
 145                         accAmount.setTextAlignment(View.TEXT_ALIGNMENT_VIEW_END);
 146                         accAmount.setMinWidth(dp2px(ctx, 60));
 147                         row.addView(accAmount);
 148                         holder.tableAccounts.addView(row);
 149                     }
 150                     else {
 151                         accName = (TextView) row.getChildAt(0);
 152                         accAmount = (TextView) row.getChildAt(1);
 153                     }
 154                     LedgerTransactionAccount acc = step.getAccount();
 155
 156                     accName.setText(acc.getAccountName());
 157                     accAmount.setText(acc.toString());
 158
 159                     String boldAccountName = step.getBoldAccountName();
 160                     if ((boldAccountName != null) && boldAccountName.equals(acc.getAccountName())) {
 161                         accName.setTypeface(null, Typeface.BOLD);
 162                         accAmount.setTypeface(null, Typeface.BOLD);
 163                         accName.setTextColor(Globals.primaryDark);
 164                         accAmount.setTextColor(Globals.primaryDark);
 165                     }
 166                     else {
 167                         accName.setTypeface(null, Typeface.NORMAL);
 168                         accAmount.setTypeface(null, Typeface.NORMAL);
 169                         accName.setTextColor(Globals.defaultTextColor);
 170                         accAmount.setTextColor(Globals.defaultTextColor);
 171                     }
 172
 173                     break;
 174                 case DONE:
 175                     int accCount = step.getAccountCount();
 176                     if (holder.tableAccounts.getChildCount() > accCount) {
 177                         holder.tableAccounts.removeViews(accCount,
 178                                 holder.tableAccounts.getChildCount() - accCount);
 179                     }
 180
 181                     Log.d("transactions",
 182                             String.format("Position %d fill done", step.getPosition()));
 183             }
 184         }
 185     }
 186
 187     private class TransactionLoaderParams {
 188         LedgerTransaction transaction;
 189         TransactionRowHolder holder;
 190         int position;
 191         String boldAccountName;
 192         TransactionLoaderParams(LedgerTransaction transaction, TransactionRowHolder holder,
 193                                 int position, String boldAccountName) {
 194             this.transaction = transaction;
 195             this.holder = holder;
 196             this.position = position;
 197             this.boldAccountName = boldAccountName;
 198         }
 199     }
 200 }