app/src/main/java/net/ktnx/mobileledger/ui/account_summary/AccountSummaryAdapter.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.account_summary;
  19
  20 import android.content.Context;
  21 import android.content.res.Resources;
  22 import android.graphics.Typeface;
  23 import android.view.LayoutInflater;
  24 import android.view.View;
  25 import android.view.ViewGroup;
  26 import android.widget.CheckBox;
  27 import android.widget.FrameLayout;
  28 import android.widget.ImageView;
  29 import android.widget.TextView;
  30
  31 import net.ktnx.mobileledger.R;
  32 import net.ktnx.mobileledger.model.Data;
  33 import net.ktnx.mobileledger.model.LedgerAccount;
  34 import net.ktnx.mobileledger.utils.LockHolder;
  35
  36 import androidx.annotation.NonNull;
  37 import androidx.constraintlayout.widget.ConstraintLayout;
  38 import androidx.recyclerview.widget.RecyclerView;
  39
  40 public class AccountSummaryAdapter
  41         extends RecyclerView.Adapter<AccountSummaryAdapter.LedgerRowHolder> {
  42     private boolean selectionActive;
  43
  44     AccountSummaryAdapter() {
  45         this.selectionActive = false;
  46     }
  47
  48     public void onBindViewHolder(@NonNull LedgerRowHolder holder, int position) {
  49         try (LockHolder lh = Data.accounts.lockForReading()) {
  50             if (position < Data.accounts.size()) {
  51                 LedgerAccount acc = Data.accounts.get(position);
  52                 Context ctx = holder.row.getContext();
  53                 Resources rm = ctx.getResources();
  54
  55                 holder.row.setTag(acc);
  56                 holder.row.setVisibility(View.VISIBLE);
  57                 holder.vTrailer.setVisibility(View.GONE);
  58                 holder.tvAccountName.setText(acc.getShortName());
  59                 ConstraintLayout.LayoutParams lp =
  60                         (ConstraintLayout.LayoutParams) holder.tvAccountName.getLayoutParams();
  61                 lp.setMarginStart(
  62                         acc.getLevel() * rm.getDimensionPixelSize(R.dimen.thumb_row_height) / 2);
  63                 holder.expanderContainer
  64                         .setVisibility(acc.hasSubAccounts() ? View.VISIBLE : View.INVISIBLE);
  65                 holder.expanderContainer.setRotation(acc.isExpanded() ? 0 : 180);
  66                 holder.tvAccountAmounts.setText(acc.getAmountsString());
  67
  68                 if (acc.isHiddenByStar()) {
  69                     holder.tvAccountName.setTypeface(null, Typeface.ITALIC);
  70                     holder.tvAccountAmounts.setTypeface(null, Typeface.ITALIC);
  71                 }
  72                 else {
  73                     holder.tvAccountName.setTypeface(null, Typeface.NORMAL);
  74                     holder.tvAccountAmounts.setTypeface(null, Typeface.NORMAL);
  75                 }
  76
  77                 holder.selectionCb.setVisibility(selectionActive ? View.VISIBLE : View.GONE);
  78                 holder.selectionCb.setChecked(!acc.isHiddenByStarToBe());
  79
  80                 holder.row.setTag(R.id.POS, position);
  81             }
  82             else {
  83                 holder.vTrailer.setVisibility(View.VISIBLE);
  84                 holder.row.setVisibility(View.GONE);
  85             }
  86         }
  87     }
  88
  89     @NonNull
  90     @Override
  91     public LedgerRowHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
  92         View row = LayoutInflater.from(parent.getContext())
  93                 .inflate(R.layout.account_summary_row, parent, false);
  94         return new LedgerRowHolder(row);
  95     }
  96
  97     @Override
  98     public int getItemCount() {
  99         return Data.accounts.size() + 1;
 100     }
 101     public void startSelection() {
 102         try (LockHolder lh = Data.accounts.lockForWriting()) {
 103             for (int i = 0; i < Data.accounts.size(); i++) {
 104                 LedgerAccount acc = Data.accounts.get(i);
 105                 acc.setHiddenByStarToBe(acc.isHiddenByStar());
 106             }
 107             this.selectionActive = true;
 108             lh.downgrade();
 109             notifyDataSetChanged();
 110         }
 111     }
 112
 113     public void stopSelection() {
 114         this.selectionActive = false;
 115         notifyDataSetChanged();
 116     }
 117
 118     public boolean isSelectionActive() {
 119         return selectionActive;
 120     }
 121
 122     public void selectItem(int position) {
 123         try (LockHolder lh = Data.accounts.lockForWriting()) {
 124             LedgerAccount acc = Data.accounts.get(position);
 125             acc.toggleHiddenToBe();
 126             toggleChildrenOf(acc, acc.isHiddenByStarToBe(), position);
 127             notifyItemChanged(position);
 128         }
 129     }
 130     void toggleChildrenOf(LedgerAccount parent, boolean hiddenToBe, int parentPosition) {
 131         int i = parentPosition + 1;
 132         try (LockHolder lh = Data.accounts.lockForWriting()) {
 133             for (int j = 0; j < Data.accounts.size(); j++) {
 134                 LedgerAccount acc = Data.accounts.get(j);
 135                 if (acc.getName().startsWith(parent.getName() + ":")) {
 136                     acc.setHiddenByStarToBe(hiddenToBe);
 137                     notifyItemChanged(i);
 138                     toggleChildrenOf(acc, hiddenToBe, i);
 139                     i++;
 140                 }
 141             }
 142         }
 143     }
 144
 145     class LedgerRowHolder extends RecyclerView.ViewHolder {
 146         CheckBox selectionCb;
 147         TextView tvAccountName, tvAccountAmounts;
 148         ConstraintLayout row;
 149         View vTrailer;
 150         FrameLayout expanderContainer;
 151         ImageView expander;
 152         public LedgerRowHolder(@NonNull View itemView) {
 153             super(itemView);
 154             this.row = itemView.findViewById(R.id.account_summary_row);
 155             this.tvAccountName = itemView.findViewById(R.id.account_row_acc_name);
 156             this.tvAccountAmounts = itemView.findViewById(R.id.account_row_acc_amounts);
 157             this.selectionCb = itemView.findViewById(R.id.account_row_check);
 158             this.vTrailer = itemView.findViewById(R.id.account_summary_trailer);
 159             this.expanderContainer = itemView.findViewById(R.id.account_expander_container);
 160             this.expander = itemView.findViewById(R.id.account_expander);
 161
 162             expanderContainer.addOnLayoutChangeListener(
 163                     (v, left, top, right, bottom, oldLeft, oldTop, oldRight, oldBottom) -> {
 164                         int w = right - left;
 165                         int h = bottom - top;
 166                         if (h > w) {
 167                             int p = (h - w) / 2;
 168                             v.setPadding(0, p, 0, p);
 169                         }
 170                         else v.setPadding(0, 0, 0, 0);
 171                     });
 172         }
 173     }
 174 }