d9df87d5741bf77d75923f3b3b07af6081afee74
[mobile-ledger.git] / 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
35 import java.util.List;
36
37 import androidx.annotation.NonNull;
38 import androidx.constraintlayout.widget.ConstraintLayout;
39 import androidx.recyclerview.widget.RecyclerView;
40
41 public class AccountSummaryAdapter
42         extends RecyclerView.Adapter<AccountSummaryAdapter.LedgerRowHolder> {
43     private boolean selectionActive;
44
45     AccountSummaryAdapter() {
46         this.selectionActive = false;
47     }
48
49     public void onBindViewHolder(@NonNull LedgerRowHolder holder, int position) {
50         List<LedgerAccount> accounts = Data.accounts.get();
51         if (position < accounts.size()) {
52             LedgerAccount acc = accounts.get(position);
53             Context ctx = holder.row.getContext();
54             Resources rm = ctx.getResources();
55
56             holder.row.setTag(acc);
57             holder.row.setVisibility(View.VISIBLE);
58             holder.vTrailer.setVisibility(View.GONE);
59             holder.tvAccountName.setText(acc.getShortName());
60             ConstraintLayout.LayoutParams lp =
61                     (ConstraintLayout.LayoutParams) holder.tvAccountName.getLayoutParams();
62             lp.setMarginStart(
63                     acc.getLevel() * rm.getDimensionPixelSize(R.dimen.thumb_row_height) / 2);
64             holder.expanderContainer
65                     .setVisibility(acc.hasSubAccounts() ? View.VISIBLE : View.INVISIBLE);
66             holder.expanderContainer.setRotation(acc.isExpanded() ? 0 : 180);
67             holder.tvAccountAmounts.setText(acc.getAmountsString());
68
69             if (acc.isHiddenByStar()) {
70                 holder.tvAccountName.setTypeface(null, Typeface.ITALIC);
71                 holder.tvAccountAmounts.setTypeface(null, Typeface.ITALIC);
72             }
73             else {
74                 holder.tvAccountName.setTypeface(null, Typeface.NORMAL);
75                 holder.tvAccountAmounts.setTypeface(null, Typeface.NORMAL);
76             }
77
78             holder.selectionCb.setVisibility(selectionActive ? View.VISIBLE : View.GONE);
79             holder.selectionCb.setChecked(!acc.isHiddenByStarToBe());
80
81             holder.row.setTag(R.id.POS, position);
82         }
83         else {
84             holder.vTrailer.setVisibility(View.VISIBLE);
85             holder.row.setVisibility(View.GONE);
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.get().size() + 1;
100     }
101     public void startSelection() {
102         for (LedgerAccount acc : Data.accounts.get()) acc.setHiddenByStarToBe(acc.isHiddenByStar());
103         this.selectionActive = true;
104         notifyDataSetChanged();
105     }
106
107     public void stopSelection() {
108         this.selectionActive = false;
109         notifyDataSetChanged();
110     }
111
112     public boolean isSelectionActive() {
113         return selectionActive;
114     }
115
116     public void selectItem(int position) {
117         LedgerAccount acc = Data.accounts.get().get(position);
118         acc.toggleHiddenToBe();
119         toggleChildrenOf(acc, acc.isHiddenByStarToBe(), position);
120         notifyItemChanged(position);
121     }
122     void toggleChildrenOf(LedgerAccount parent, boolean hiddenToBe, int parentPosition) {
123         int i = parentPosition + 1;
124         for (LedgerAccount acc : Data.accounts.get()) {
125             if (acc.getName().startsWith(parent.getName() + ":")) {
126                 acc.setHiddenByStarToBe(hiddenToBe);
127                 notifyItemChanged(i);
128                 toggleChildrenOf(acc, hiddenToBe, i);
129                 i++;
130             }
131         }
132     }
133
134     class LedgerRowHolder extends RecyclerView.ViewHolder {
135         CheckBox selectionCb;
136         TextView tvAccountName, tvAccountAmounts;
137         ConstraintLayout row;
138         View vTrailer;
139         FrameLayout expanderContainer;
140         ImageView expander;
141         public LedgerRowHolder(@NonNull View itemView) {
142             super(itemView);
143             this.row = itemView.findViewById(R.id.account_summary_row);
144             this.tvAccountName = itemView.findViewById(R.id.account_row_acc_name);
145             this.tvAccountAmounts = itemView.findViewById(R.id.account_row_acc_amounts);
146             this.selectionCb = itemView.findViewById(R.id.account_row_check);
147             this.vTrailer = itemView.findViewById(R.id.account_summary_trailer);
148             this.expanderContainer = itemView.findViewById(R.id.account_expander_container);
149             this.expander = itemView.findViewById(R.id.account_expander);
150
151             expanderContainer.addOnLayoutChangeListener(
152                     (v, left, top, right, bottom, oldLeft, oldTop, oldRight, oldBottom) -> {
153                         int w = right - left;
154                         int h = bottom - top;
155                         if (h > w) {
156                             int p = (h - w) / 2;
157                             v.setPadding(0, p, 0, p);
158                         }
159                         else v.setPadding(0, 0, 0, 0);
160                     });
161         }
162     }
163 }