app/src/main/java/net/ktnx/mobileledger/AccountSummaryViewModel.java

   1 package net.ktnx.mobileledger;
   2
   3 import android.app.Application;
   4 import android.arch.lifecycle.AndroidViewModel;
   5 import android.content.Context;
   6 import android.content.res.Resources;
   7 import android.database.Cursor;
   8 import android.database.sqlite.SQLiteDatabase;
   9 import android.graphics.Typeface;
  10 import android.os.Build;
  11 import android.preference.PreferenceManager;
  12 import android.support.annotation.NonNull;
  13 import android.support.v7.widget.RecyclerView;
  14 import android.view.LayoutInflater;
  15 import android.view.View;
  16 import android.view.ViewGroup;
  17 import android.widget.CheckBox;
  18 import android.widget.LinearLayout;
  19 import android.widget.TextView;
  20
  21 import java.util.ArrayList;
  22 import java.util.List;
  23
  24 class AccountSummaryViewModel extends AndroidViewModel {
  25     private MobileLedgerDatabase dbh;
  26     private List<LedgerAccount> accounts;
  27
  28     public AccountSummaryViewModel(@NonNull Application application) {
  29         super(application);
  30         dbh = new MobileLedgerDatabase(application);
  31     }
  32
  33     List<LedgerAccount> getAccounts() {
  34         if (accounts == null) {
  35             accounts = new ArrayList<>();
  36             reloadAccounts();
  37         }
  38
  39         return accounts;
  40     }
  41
  42     void reloadAccounts() {
  43         accounts.clear();
  44         boolean showingHiddenAccounts =
  45                 PreferenceManager.getDefaultSharedPreferences(getApplication())
  46                         .getBoolean("show_hidden_accounts", false);
  47         String sql = "SELECT name, hidden FROM accounts";
  48         if (!showingHiddenAccounts) sql += " WHERE hidden = 0";
  49         sql += " ORDER BY name";
  50
  51         try (SQLiteDatabase db = dbh.getReadableDatabase()) {
  52             try (Cursor cursor = db
  53                     .rawQuery(sql,null))
  54             {
  55                 while (cursor.moveToNext()) {
  56                     LedgerAccount acc = new LedgerAccount(cursor.getString(0));
  57                     acc.setHidden(cursor.getInt(1) == 1);
  58                     try (Cursor c2 = db.rawQuery(
  59                             "SELECT value, currency FROM account_values " + "WHERE account = ?",
  60                             new String[]{acc.getName()}))
  61                     {
  62                         while (c2.moveToNext()) {
  63                             acc.addAmount(c2.getFloat(0), c2.getString(1));
  64                         }
  65                     }
  66                     accounts.add(acc);
  67                 }
  68             }
  69         }
  70     }
  71 }
  72
  73 class AccountSummaryAdapter extends RecyclerView.Adapter<AccountSummaryAdapter.LedgerRowHolder> {
  74     private List<LedgerAccount> accounts;
  75     private boolean selectionActive;
  76
  77     AccountSummaryAdapter(List<LedgerAccount> accounts) {
  78         this.accounts = accounts;
  79         this.selectionActive = false;
  80     }
  81
  82     public void onBindViewHolder(@NonNull LedgerRowHolder holder, int position) {
  83         LedgerAccount acc = accounts.get(position);
  84         Context ctx = holder.row.getContext();
  85         Resources rm = ctx.getResources();
  86
  87         holder.tvAccountName.setText(acc.getShortName());
  88         holder.tvAccountName.setPadding(
  89                 acc.getLevel() * rm.getDimensionPixelSize(R.dimen.activity_horizontal_margin)/2,
  90                 0, 0,
  91                 0);
  92         holder.tvAccountAmounts.setText(acc.getAmountsString());
  93
  94         if (acc.isHidden()) {
  95             holder.tvAccountName.setTypeface(null, Typeface.ITALIC);
  96             holder.tvAccountAmounts.setTypeface(null, Typeface.ITALIC);
  97         }
  98         else {
  99             holder.tvAccountName.setTypeface(null, Typeface.NORMAL);
 100             holder.tvAccountAmounts.setTypeface(null, Typeface.NORMAL);
 101         }
 102
 103         if (position % 2 == 0) {
 104             if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) holder.row
 105                     .setBackgroundColor(rm.getColor(R.color.table_row_even_bg, ctx.getTheme()));
 106             else holder.row.setBackgroundColor(rm.getColor(R.color.table_row_even_bg));
 107         }
 108         else {
 109             if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) holder.row
 110                     .setBackgroundColor(rm.getColor(R.color.drawer_background, ctx.getTheme()));
 111             else holder.row.setBackgroundColor(rm.getColor(R.color.drawer_background));
 112         }
 113
 114         holder.selectionCb.setVisibility( selectionActive ? View.VISIBLE : View.GONE);
 115         holder.selectionCb.setChecked(acc.isSelected());
 116
 117         holder.row.setTag(R.id.POS, position);
 118     }
 119
 120     @NonNull
 121     @Override
 122     public LedgerRowHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
 123         View row = LayoutInflater.from(parent.getContext())
 124                 .inflate(R.layout.account_summary_row, parent, false);
 125         return new LedgerRowHolder(row);
 126     }
 127
 128     @Override
 129     public int getItemCount() {
 130         return accounts.size();
 131     }
 132
 133     public void startSelection() {
 134         for( LedgerAccount acc : accounts ) acc.setSelected(false);
 135         this.selectionActive = true;
 136         notifyDataSetChanged();
 137     }
 138
 139     public void stopSelection() {
 140         this.selectionActive = false;
 141         notifyDataSetChanged();
 142     }
 143
 144     public boolean isSelectionActive() {
 145         return selectionActive;
 146     }
 147
 148     public void selectItem(int position) {
 149         accounts.get(position).toggleSelected();
 150         notifyItemChanged(position);
 151     }
 152     class LedgerRowHolder extends RecyclerView.ViewHolder {
 153         CheckBox selectionCb;
 154         TextView tvAccountName, tvAccountAmounts;
 155         LinearLayout row;
 156         public LedgerRowHolder(@NonNull View itemView) {
 157             super(itemView);
 158             this.row = (LinearLayout) itemView;
 159             this.tvAccountName = itemView.findViewById(R.id.account_row_acc_name);
 160             this.tvAccountAmounts = itemView.findViewById(R.id.account_row_acc_amounts);
 161             this.selectionCb = itemView.findViewById(R.id.account_row_check);
 162         }
 163     }
 164 }