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

   1 /*
   2  * Copyright © 2019 Damyan Ivanov.
   3  * This file is part of MoLe.
   4  * MoLe 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  * MoLe 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 MoLe. 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.text.Spannable;
  25 import android.text.SpannableString;
  26 import android.text.style.StyleSpan;
  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.Data;
  36 import net.ktnx.mobileledger.model.LedgerTransaction;
  37 import net.ktnx.mobileledger.model.LedgerTransactionAccount;
  38 import net.ktnx.mobileledger.model.TransactionListItem;
  39 import net.ktnx.mobileledger.utils.Colors;
  40 import net.ktnx.mobileledger.utils.Globals;
  41 import net.ktnx.mobileledger.utils.MLDB;
  42
  43 import java.text.DateFormat;
  44 import java.util.Date;
  45 import java.util.GregorianCalendar;
  46 import java.util.TimeZone;
  47
  48 import androidx.annotation.NonNull;
  49 import androidx.appcompat.widget.AppCompatTextView;
  50 import androidx.recyclerview.widget.RecyclerView;
  51
  52 import static net.ktnx.mobileledger.utils.DimensionUtils.dp2px;
  53
  54 public class TransactionListAdapter extends RecyclerView.Adapter<TransactionRowHolder> {
  55     public void onBindViewHolder(@NonNull TransactionRowHolder holder, int position) {
  56         TransactionListItem item = TransactionListViewModel.getTransactionListItem(position);
  57
  58         // in a race when transaction value is reduced, but the model hasn't been notified yet
  59         // the view will disappear when the notifications reaches the model, so by simply omitting
  60         // the out-of-range get() call nothing bad happens - just a to-be-deleted view remains
  61         // a bit longer
  62         if (item == null) return;
  63
  64         switch (item.getType()) {
  65             case TRANSACTION:
  66                 holder.vTransaction.setVisibility(View.VISIBLE);
  67                 holder.vDelimiter.setVisibility(View.GONE);
  68                 holder.vTrailer.setVisibility(View.GONE);
  69                 LedgerTransaction tr = item.getTransaction();
  70
  71                 //        Log.d("transactions", String.format("Filling position %d with %d accounts", position,
  72                 //                tr.getAccounts().size()));
  73
  74                 TransactionLoader loader = new TransactionLoader();
  75                 loader.executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR,
  76                         new TransactionLoaderParams(tr, holder, position, Data.accountFilter.getValue(),
  77                                 item.isOdd()));
  78
  79                 // WORKAROUND what seems to be a bug in CardHolder somewhere
  80                 // when a view that was previously holding a delimiter is re-purposed
  81                 // occasionally it stays too short (not high enough)
  82                 holder.vTransaction.measure(View.MeasureSpec
  83                                 .makeMeasureSpec(holder.itemView.getWidth(), View.MeasureSpec.EXACTLY),
  84                         View.MeasureSpec.makeMeasureSpec(0, View.MeasureSpec.UNSPECIFIED));
  85                 break;
  86             case DELIMITER:
  87                 Date date = item.getDate();
  88                 holder.vTransaction.setVisibility(View.GONE);
  89                 holder.vTrailer.setVisibility(View.GONE);
  90                 holder.vDelimiter.setVisibility(View.VISIBLE);
  91                 holder.tvDelimiterDate.setText(DateFormat.getDateInstance().format(date));
  92                 if (item.isMonthShown()) {
  93                     GregorianCalendar cal = new GregorianCalendar(TimeZone.getDefault());
  94                     cal.setTime(date);
  95                     holder.tvDelimiterMonth
  96                             .setText(Globals.monthNames[cal.get(GregorianCalendar.MONTH)]);
  97                     holder.tvDelimiterMonth.setVisibility(View.VISIBLE);
  98                     //                holder.vDelimiterLine.setBackgroundResource(R.drawable.dashed_border_8dp);
  99                     holder.vDelimiterLine.setVisibility(View.GONE);
 100                     holder.vDelimiterThick.setVisibility(View.VISIBLE);
 101                 }
 102                 else {
 103                     holder.tvDelimiterMonth.setVisibility(View.GONE);
 104                     //                holder.vDelimiterLine.setBackgroundResource(R.drawable.dashed_border_1dp);
 105                     holder.vDelimiterLine.setVisibility(View.VISIBLE);
 106                     holder.vDelimiterThick.setVisibility(View.GONE);
 107                 }
 108                 break;
 109             case TRAILER:
 110                 holder.vTransaction.setVisibility(View.GONE);
 111                 holder.vTrailer.setVisibility(View.VISIBLE);
 112                 holder.vDelimiter.setVisibility(View.GONE);
 113
 114                 break;
 115         }
 116     }
 117
 118     @NonNull
 119     @Override
 120     public TransactionRowHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
 121 //        Log.d("perf", "onCreateViewHolder called");
 122         View row = LayoutInflater.from(parent.getContext())
 123                 .inflate(R.layout.transaction_list_row, parent, false);
 124         return new TransactionRowHolder(row);
 125     }
 126
 127     @Override
 128     public int getItemCount() {
 129         return Data.transactions.size() + 1;
 130     }
 131     enum LoaderStep {HEAD, ACCOUNTS, DONE}
 132     private static class TransactionLoader
 133             extends AsyncTask<TransactionLoaderParams, TransactionLoaderStep, Void> {
 134         @Override
 135         protected Void doInBackground(TransactionLoaderParams... p) {
 136             LedgerTransaction tr = p[0].transaction;
 137             boolean odd = p[0].odd;
 138
 139             SQLiteDatabase db = MLDB.getDatabase();
 140             tr.loadData(db);
 141
 142             publishProgress(new TransactionLoaderStep(p[0].holder, p[0].position, tr, odd));
 143
 144             int rowIndex = 0;
 145             for (LedgerTransactionAccount acc : tr.getAccounts()) {
 146 //                Log.d(c.getAccountName(), acc.getAmount()));
 147                 publishProgress(new TransactionLoaderStep(p[0].holder, acc, rowIndex++,
 148                         p[0].boldAccountName));
 149             }
 150
 151             publishProgress(new TransactionLoaderStep(p[0].holder, p[0].position, rowIndex));
 152
 153             return null;
 154         }
 155         @Override
 156         protected void onProgressUpdate(TransactionLoaderStep... values) {
 157             super.onProgressUpdate(values);
 158             TransactionLoaderStep step = values[0];
 159             TransactionRowHolder holder = step.getHolder();
 160
 161             switch (step.getStep()) {
 162                 case HEAD:
 163                     holder.tvDescription.setText(step.getTransaction().getDescription());
 164
 165                     if (step.isOdd()) holder.row.setBackgroundColor(Colors.tableRowDarkBG);
 166                     else holder.row.setBackgroundColor(Colors.tableRowLightBG);
 167
 168                     break;
 169                 case ACCOUNTS:
 170                     int rowIndex = step.getAccountPosition();
 171                     Context ctx = holder.row.getContext();
 172                     LinearLayout row = (LinearLayout) holder.tableAccounts.getChildAt(rowIndex);
 173                     TextView accName, accAmount;
 174                     if (row == null) {
 175                         row = new LinearLayout(ctx);
 176                         row.setLayoutParams(new LinearLayout.LayoutParams(
 177                                 LinearLayout.LayoutParams.MATCH_PARENT,
 178                                 LinearLayout.LayoutParams.WRAP_CONTENT));
 179                         row.setGravity(Gravity.CENTER_VERTICAL);
 180                         row.setOrientation(LinearLayout.HORIZONTAL);
 181                         row.setPaddingRelative(dp2px(ctx, 8), 0, 0, 0);
 182                         accName = new AppCompatTextView(ctx);
 183                         accName.setLayoutParams(new LinearLayout.LayoutParams(0,
 184                                 LinearLayout.LayoutParams.WRAP_CONTENT, 5f));
 185                         accName.setTextAlignment(View.TEXT_ALIGNMENT_VIEW_START);
 186                         row.addView(accName);
 187                         accAmount = new AppCompatTextView(ctx);
 188                         LinearLayout.LayoutParams llp = new LinearLayout.LayoutParams(
 189                                 LinearLayout.LayoutParams.WRAP_CONTENT,
 190                                 LinearLayout.LayoutParams.WRAP_CONTENT);
 191                         llp.setMarginEnd(0);
 192                         accAmount.setLayoutParams(llp);
 193                         accAmount.setTextAlignment(View.TEXT_ALIGNMENT_VIEW_END);
 194                         accAmount.setMinWidth(dp2px(ctx, 60));
 195                         row.addView(accAmount);
 196                         holder.tableAccounts.addView(row);
 197                     }
 198                     else {
 199                         accName = (TextView) row.getChildAt(0);
 200                         accAmount = (TextView) row.getChildAt(1);
 201                     }
 202                     LedgerTransactionAccount acc = step.getAccount();
 203
 204
 205 //                    Log.d("tmp", String.format("showing acc row %d: %s %1.2f", rowIndex,
 206 //                            acc.getAccountName(), acc.getAmount()));
 207
 208                     String boldAccountName = step.getBoldAccountName();
 209                     if ((boldAccountName != null) &&
 210                         acc.getAccountName().startsWith(boldAccountName))
 211                     {
 212                         accName.setTextColor(Colors.accent);
 213                         accAmount.setTextColor(Colors.accent);
 214
 215                         SpannableString ss = new SpannableString(acc.getAccountName());
 216                         ss.setSpan(new StyleSpan(Typeface.BOLD), 0, boldAccountName.length(),
 217                                 Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
 218                         accName.setText(ss);
 219                     }
 220                     else {
 221                         accName.setTextColor(Colors.defaultTextColor);
 222                         accAmount.setTextColor(Colors.defaultTextColor);
 223                         accName.setText(acc.getAccountName());
 224                     }
 225                     accAmount.setText(acc.toString());
 226
 227                     break;
 228                 case DONE:
 229                     int accCount = step.getAccountCount();
 230                     if (holder.tableAccounts.getChildCount() > accCount) {
 231                         holder.tableAccounts.removeViews(accCount,
 232                                 holder.tableAccounts.getChildCount() - accCount);
 233                     }
 234
 235 //                    Log.d("transactions",
 236 //                            String.format("Position %d fill done", step.getPosition()));
 237             }
 238         }
 239     }
 240
 241     private class TransactionLoaderParams {
 242         LedgerTransaction transaction;
 243         TransactionRowHolder holder;
 244         int position;
 245         String boldAccountName;
 246         boolean odd;
 247         TransactionLoaderParams(LedgerTransaction transaction, TransactionRowHolder holder,
 248                                 int position, String boldAccountName, boolean odd) {
 249             this.transaction = transaction;
 250             this.holder = holder;
 251             this.position = position;
 252             this.boldAccountName = boldAccountName;
 253             this.odd = odd;
 254         }
 255     }
 256 }