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 androidx.annotation.NonNull;
  25 import androidx.appcompat.widget.AppCompatTextView;
  26 import androidx.recyclerview.widget.RecyclerView;
  27 import android.text.Spannable;
  28 import android.text.SpannableString;
  29 import android.text.style.StyleSpan;
  30 import android.view.Gravity;
  31 import android.view.LayoutInflater;
  32 import android.view.View;
  33 import android.view.ViewGroup;
  34 import android.widget.LinearLayout;
  35 import android.widget.TextView;
  36
  37 import net.ktnx.mobileledger.R;
  38 import net.ktnx.mobileledger.model.LedgerTransaction;
  39 import net.ktnx.mobileledger.model.LedgerTransactionAccount;
  40 import net.ktnx.mobileledger.model.TransactionListItem;
  41 import net.ktnx.mobileledger.utils.Colors;
  42 import net.ktnx.mobileledger.utils.Globals;
  43 import net.ktnx.mobileledger.utils.MLDB;
  44
  45 import java.text.DateFormat;
  46 import java.util.Date;
  47 import java.util.GregorianCalendar;
  48 import java.util.TimeZone;
  49
  50 import static net.ktnx.mobileledger.utils.DimensionUtils.dp2px;
  51
  52 public class TransactionListAdapter extends RecyclerView.Adapter<TransactionRowHolder> {
  53     private String boldAccountName;
  54     public void onBindViewHolder(@NonNull TransactionRowHolder holder, int position) {
  55         TransactionListItem item = TransactionListViewModel.getTransactionListItem(position);
  56
  57         // in a race when transaction value is reduced, but the model hasn't been notified yet
  58         // the view will disappear when the notifications reaches the model, so by simply omitting
  59         // the out-of-range get() call nothing bad happens - just a to-be-deleted view remains
  60         // a bit longer
  61         if (item == null) return;
  62
  63         switch (item.getType()) {
  64             case TRANSACTION:
  65                 holder.vTransaction.setVisibility(View.VISIBLE);
  66                 holder.vDelimiter.setVisibility(View.GONE);
  67                 holder.vTrailer.setVisibility(View.GONE);
  68                 LedgerTransaction tr = item.getTransaction();
  69
  70                 //        Log.d("transactions", String.format("Filling position %d with %d accounts", position,
  71                 //                tr.getAccounts().size()));
  72
  73                 TransactionLoader loader = new TransactionLoader();
  74                 loader.execute(new TransactionLoaderParams(tr, holder, position, boldAccountName,
  75                         item.isOdd()));
  76
  77                 // WORKAROUND what seems to be a bug in CardHolder somewhere
  78                 // when a view that was previously holding a delimiter is re-purposed
  79                 // occasionally it stays too short (not high enough)
  80 //                holder.vTransaction.measure(View.MeasureSpec
  81 //                                .makeMeasureSpec(holder.itemView.getWidth(), View.MeasureSpec.EXACTLY),
  82 //                        View.MeasureSpec.makeMeasureSpec(0, View.MeasureSpec.UNSPECIFIED));
  83                 break;
  84             case DELIMITER:
  85                 Date date = item.getDate();
  86                 holder.vTransaction.setVisibility(View.GONE);
  87                 holder.vTrailer.setVisibility(View.GONE);
  88                 holder.vDelimiter.setVisibility(View.VISIBLE);
  89                 holder.tvDelimiterDate.setText(DateFormat.getDateInstance().format(date));
  90                 if (item.isMonthShown()) {
  91                     GregorianCalendar cal = new GregorianCalendar(TimeZone.getDefault());
  92                     cal.setTime(date);
  93                     holder.tvDelimiterMonth
  94                             .setText(Globals.monthNames[cal.get(GregorianCalendar.MONTH)]);
  95                     holder.tvDelimiterMonth.setVisibility(View.VISIBLE);
  96                     //                holder.vDelimiterLine.setBackgroundResource(R.drawable.dashed_border_8dp);
  97                     holder.vDelimiterLine.setVisibility(View.GONE);
  98                     holder.vDelimiterThick.setVisibility(View.VISIBLE);
  99                 }
 100                 else {
 101                     holder.tvDelimiterMonth.setVisibility(View.GONE);
 102                     //                holder.vDelimiterLine.setBackgroundResource(R.drawable.dashed_border_1dp);
 103                     holder.vDelimiterLine.setVisibility(View.VISIBLE);
 104                     holder.vDelimiterThick.setVisibility(View.GONE);
 105                 }
 106                 break;
 107             case TRAILER:
 108                 holder.vTransaction.setVisibility(View.GONE);
 109                 holder.vTrailer.setVisibility(View.VISIBLE);
 110                 holder.vDelimiter.setVisibility(View.GONE);
 111
 112                 break;
 113         }
 114     }
 115
 116     @NonNull
 117     @Override
 118     public TransactionRowHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
 119 //        Log.d("perf", "onCreateViewHolder called");
 120         View row = LayoutInflater.from(parent.getContext())
 121                 .inflate(R.layout.transaction_list_row, parent, false);
 122         return new TransactionRowHolder(row);
 123     }
 124
 125     @Override
 126     public int getItemCount() {
 127         return TransactionListViewModel.getTransactionCount() + 1;
 128     }
 129     public void setBoldAccountName(String boldAccountName) {
 130         this.boldAccountName = boldAccountName;
 131     }
 132     public void resetBoldAccountName() {
 133         this.boldAccountName = null;
 134     }
 135
 136     enum LoaderStep {HEAD, ACCOUNTS, DONE}
 137
 138     private static class TransactionLoader
 139             extends AsyncTask<TransactionLoaderParams, TransactionLoaderStep, Void> {
 140         @Override
 141         protected Void doInBackground(TransactionLoaderParams... p) {
 142             LedgerTransaction tr = p[0].transaction;
 143             boolean odd = p[0].odd;
 144
 145             SQLiteDatabase db = MLDB.getReadableDatabase();
 146             tr.loadData(db);
 147
 148             publishProgress(new TransactionLoaderStep(p[0].holder, p[0].position, tr, odd));
 149
 150             int rowIndex = 0;
 151             for (LedgerTransactionAccount acc : tr.getAccounts()) {
 152 //                Log.d(c.getAccountName(), acc.getAmount()));
 153                 publishProgress(new TransactionLoaderStep(p[0].holder, acc, rowIndex++,
 154                         p[0].boldAccountName));
 155             }
 156
 157             publishProgress(new TransactionLoaderStep(p[0].holder, p[0].position, rowIndex));
 158
 159             return null;
 160         }
 161         @Override
 162         protected void onProgressUpdate(TransactionLoaderStep... values) {
 163             super.onProgressUpdate(values);
 164             TransactionLoaderStep step = values[0];
 165             TransactionRowHolder holder = step.getHolder();
 166
 167             switch (step.getStep()) {
 168                 case HEAD:
 169                     holder.tvDescription.setText(step.getTransaction().getDescription());
 170
 171                     if (step.isOdd()) holder.row.setBackgroundColor(Colors.tableRowDarkBG);
 172                     else holder.row.setBackgroundColor(Colors.tableRowLightBG);
 173
 174                     break;
 175                 case ACCOUNTS:
 176                     int rowIndex = step.getAccountPosition();
 177                     Context ctx = holder.row.getContext();
 178                     LinearLayout row = (LinearLayout) holder.tableAccounts.getChildAt(rowIndex);
 179                     TextView accName, accAmount;
 180                     if (row == null) {
 181                         row = new LinearLayout(ctx);
 182                         row.setLayoutParams(new LinearLayout.LayoutParams(
 183                                 LinearLayout.LayoutParams.MATCH_PARENT,
 184                                 LinearLayout.LayoutParams.WRAP_CONTENT));
 185                         row.setGravity(Gravity.CENTER_VERTICAL);
 186                         row.setOrientation(LinearLayout.HORIZONTAL);
 187                         row.setPaddingRelative(dp2px(ctx, 8), 0, 0, 0);
 188                         accName = new AppCompatTextView(ctx);
 189                         accName.setLayoutParams(new LinearLayout.LayoutParams(0,
 190                                 LinearLayout.LayoutParams.WRAP_CONTENT, 5f));
 191                         accName.setTextAlignment(View.TEXT_ALIGNMENT_VIEW_START);
 192                         row.addView(accName);
 193                         accAmount = new AppCompatTextView(ctx);
 194                         LinearLayout.LayoutParams llp = new LinearLayout.LayoutParams(
 195                                 LinearLayout.LayoutParams.WRAP_CONTENT,
 196                                 LinearLayout.LayoutParams.WRAP_CONTENT);
 197                         llp.setMarginEnd(0);
 198                         accAmount.setLayoutParams(llp);
 199                         accAmount.setTextAlignment(View.TEXT_ALIGNMENT_VIEW_END);
 200                         accAmount.setMinWidth(dp2px(ctx, 60));
 201                         row.addView(accAmount);
 202                         holder.tableAccounts.addView(row);
 203                     }
 204                     else {
 205                         accName = (TextView) row.getChildAt(0);
 206                         accAmount = (TextView) row.getChildAt(1);
 207                     }
 208                     LedgerTransactionAccount acc = step.getAccount();
 209
 210
 211 //                    Log.d("tmp", String.format("showing acc row %d: %s %1.2f", rowIndex,
 212 //                            acc.getAccountName(), acc.getAmount()));
 213
 214                     String boldAccountName = step.getBoldAccountName();
 215                     if ((boldAccountName != null) &&
 216                         acc.getAccountName().startsWith(boldAccountName))
 217                     {
 218                         accName.setTextColor(Colors.accent);
 219                         accAmount.setTextColor(Colors.accent);
 220
 221                         SpannableString ss = new SpannableString(acc.getAccountName());
 222                         ss.setSpan(new StyleSpan(Typeface.BOLD), 0, boldAccountName.length(),
 223                                 Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
 224                         accName.setText(ss);
 225                     }
 226                     else {
 227                         accName.setTextColor(Colors.defaultTextColor);
 228                         accAmount.setTextColor(Colors.defaultTextColor);
 229                         accName.setText(acc.getAccountName());
 230                     }
 231                     accAmount.setText(acc.toString());
 232
 233                     break;
 234                 case DONE:
 235                     int accCount = step.getAccountCount();
 236                     if (holder.tableAccounts.getChildCount() > accCount) {
 237                         holder.tableAccounts.removeViews(accCount,
 238                                 holder.tableAccounts.getChildCount() - accCount);
 239                     }
 240
 241 //                    Log.d("transactions",
 242 //                            String.format("Position %d fill done", step.getPosition()));
 243             }
 244         }
 245     }
 246
 247     private class TransactionLoaderParams {
 248         LedgerTransaction transaction;
 249         TransactionRowHolder holder;
 250         int position;
 251         String boldAccountName;
 252         boolean odd;
 253         TransactionLoaderParams(LedgerTransaction transaction, TransactionRowHolder holder,
 254                                 int position, String boldAccountName, boolean odd) {
 255             this.transaction = transaction;
 256             this.holder = holder;
 257             this.position = position;
 258             this.boldAccountName = boldAccountName;
 259             this.odd = odd;
 260         }
 261     }
 262 }