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.utils.Globals;
  38 import net.ktnx.mobileledger.utils.MLDB;
  39
  40 import static net.ktnx.mobileledger.utils.DimensionUtils.dp2px;
  41
  42 public class TransactionListAdapter extends RecyclerView.Adapter<TransactionRowHolder> {
  43     private String boldAccountName;
  44     public void onBindViewHolder(@NonNull TransactionRowHolder holder, int position) {
  45         LedgerTransaction tr = TransactionListViewModel.getTransaction(position);
  46         // in a race when transaction value is reduced, but the model hasn't been notified yet
  47         // the view will disappear when the notifications reaches the model, so by simply omitting
  48         // the out-of-range get() call nothing bad happens - just a to-be-deleted view remains
  49         // a bit longer
  50         if (tr == null) return;
  51
  52 //        Log.d("transactions", String.format("Filling position %d with %d accounts", position,
  53 //                tr.getAccounts().size()));
  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 //                Log.d(c.getAccountName(), acc.getAmount()));
  95                 publishProgress(new TransactionLoaderStep(p[0].holder, acc, rowIndex++,
  96                         p[0].boldAccountName));
  97             }
  98
  99             publishProgress(new TransactionLoaderStep(p[0].holder, p[0].position, rowIndex));
 100
 101             return null;
 102         }
 103         @Override
 104         protected void onProgressUpdate(TransactionLoaderStep... values) {
 105             super.onProgressUpdate(values);
 106             TransactionLoaderStep step = values[0];
 107             TransactionRowHolder holder = step.getHolder();
 108
 109             switch (step.getStep()) {
 110                 case HEAD:
 111                     holder.tvDescription.setText(step.getTransaction().getDescription());
 112                     holder.tvDate.setText(step.getTransaction().getDate());
 113
 114                     if (step.getPosition() % 2 == 0) {
 115                         holder.row.setBackgroundColor(Globals.tableRowEvenBG);
 116                     }
 117                     else {
 118                         holder.row.setBackgroundColor(Globals.tableRowOddBG);
 119                     }
 120
 121                     break;
 122                 case ACCOUNTS:
 123                     int rowIndex = step.getAccountPosition();
 124                     Context ctx = holder.row.getContext();
 125                     LinearLayout row = (LinearLayout) holder.tableAccounts.getChildAt(rowIndex);
 126                     TextView accName, accAmount;
 127                     if (row == null) {
 128                         row = new LinearLayout(ctx);
 129                         row.setLayoutParams(new LinearLayout.LayoutParams(
 130                                 LinearLayout.LayoutParams.MATCH_PARENT,
 131                                 LinearLayout.LayoutParams.WRAP_CONTENT));
 132                         row.setGravity(Gravity.CENTER_VERTICAL);
 133                         row.setOrientation(LinearLayout.HORIZONTAL);
 134                         row.setPaddingRelative(dp2px(ctx, 8), 0, 0, 0);
 135                         accName = new AppCompatTextView(ctx);
 136                         accName.setLayoutParams(new LinearLayout.LayoutParams(0,
 137                                 LinearLayout.LayoutParams.WRAP_CONTENT, 5f));
 138                         accName.setTextAlignment(View.TEXT_ALIGNMENT_VIEW_START);
 139                         row.addView(accName);
 140                         accAmount = new AppCompatTextView(ctx);
 141                         LinearLayout.LayoutParams llp = new LinearLayout.LayoutParams(
 142                                 LinearLayout.LayoutParams.WRAP_CONTENT,
 143                                 LinearLayout.LayoutParams.WRAP_CONTENT);
 144                         llp.setMarginEnd(0);
 145                         accAmount.setLayoutParams(llp);
 146                         accAmount.setTextAlignment(View.TEXT_ALIGNMENT_VIEW_END);
 147                         accAmount.setMinWidth(dp2px(ctx, 60));
 148                         row.addView(accAmount);
 149                         holder.tableAccounts.addView(row);
 150                     }
 151                     else {
 152                         accName = (TextView) row.getChildAt(0);
 153                         accAmount = (TextView) row.getChildAt(1);
 154                     }
 155                     LedgerTransactionAccount acc = step.getAccount();
 156
 157                     accName.setText(acc.getAccountName());
 158                     accAmount.setText(acc.toString());
 159
 160 //                    Log.d("tmp", String.format("showing acc row %d: %s %1.2f", rowIndex,
 161 //                            acc.getAccountName(), acc.getAmount()));
 162
 163                     String boldAccountName = step.getBoldAccountName();
 164                     if ((boldAccountName != null) && boldAccountName.equals(acc.getAccountName())) {
 165                         accName.setTypeface(null, Typeface.BOLD);
 166                         accAmount.setTypeface(null, Typeface.BOLD);
 167                         accName.setTextColor(Globals.primaryDark);
 168                         accAmount.setTextColor(Globals.primaryDark);
 169                     }
 170                     else {
 171                         accName.setTypeface(null, Typeface.NORMAL);
 172                         accAmount.setTypeface(null, Typeface.NORMAL);
 173                         accName.setTextColor(Globals.defaultTextColor);
 174                         accAmount.setTextColor(Globals.defaultTextColor);
 175                     }
 176
 177                     break;
 178                 case DONE:
 179                     int accCount = step.getAccountCount();
 180                     if (holder.tableAccounts.getChildCount() > accCount) {
 181                         holder.tableAccounts.removeViews(accCount,
 182                                 holder.tableAccounts.getChildCount() - accCount);
 183                     }
 184
 185 //                    Log.d("transactions",
 186 //                            String.format("Position %d fill done", step.getPosition()));
 187             }
 188         }
 189     }
 190
 191     private class TransactionLoaderParams {
 192         LedgerTransaction transaction;
 193         TransactionRowHolder holder;
 194         int position;
 195         String boldAccountName;
 196         TransactionLoaderParams(LedgerTransaction transaction, TransactionRowHolder holder,
 197                                 int position, String boldAccountName) {
 198             this.transaction = transaction;
 199             this.holder = holder;
 200             this.position = position;
 201             this.boldAccountName = boldAccountName;
 202         }
 203     }
 204 }