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