taler-android

Android apps for GNU Taler (wallet, PoS, cashier)
Log | Files | Refs | README | LICENSE

NumericInputField.kt (2396B)

      1 /*
      2  * This file is part of GNU Taler
      3  * (C) 2023 Taler Systems S.A.
      4  *
      5  * GNU Taler is free software; you can redistribute it and/or modify it under the
      6  * terms of the GNU General Public License as published by the Free Software
      7  * Foundation; either version 3, or (at your option) any later version.
      8  *
      9  * GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
     10  * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
     11  * A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
     12  *
     13  * You should have received a copy of the GNU General Public License along with
     14  * GNU Taler; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
     15  */
     16 
     17 package net.taler.wallet.compose
     18 
     19 import androidx.compose.foundation.layout.Row
     20 import androidx.compose.material.icons.Icons
     21 import androidx.compose.material.icons.filled.Add
     22 import androidx.compose.material.icons.filled.Remove
     23 import androidx.compose.material3.Icon
     24 import androidx.compose.material3.IconButton
     25 import androidx.compose.material3.OutlinedTextField
     26 import androidx.compose.runtime.Composable
     27 import androidx.compose.ui.Modifier
     28 
     29 @Composable
     30 fun NumericInputField(
     31     modifier: Modifier = Modifier,
     32     value: Long,
     33     onValueChange: (Long) -> Unit,
     34     readOnly: Boolean = true,
     35     label: @Composable () -> Unit,
     36     minValue: Long? = 0L,
     37     maxValue: Long? = null,
     38 ) {
     39     OutlinedTextField(
     40         modifier = modifier,
     41         value = value.toString(),
     42         singleLine = true,
     43         readOnly = readOnly,
     44         onValueChange = {
     45             val dd = it.toLongOrNull() ?: 0
     46             onValueChange(dd)
     47         },
     48         trailingIcon = {
     49             Row {
     50                 IconButton(
     51                     content = { Icon(Icons.Default.Remove, "add1") },
     52                     onClick = {
     53                         if (minValue != null && value - 1 >= minValue) {
     54                             onValueChange(value - 1)
     55                         }
     56                     },
     57                 )
     58                 IconButton(
     59                     content = { Icon(Icons.Default.Add, "add1") },
     60                     onClick = {
     61                         if (maxValue != null && value + 1 <= maxValue) {
     62                             onValueChange(value + 1)
     63                         }
     64                     },
     65                 )
     66             }
     67         },
     68         label = label,
     69     )
     70 }