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