[#18] Add a swap score button.

closes #18

app/src/main/java/me/zobrist/tichucounter/ui/counter/CounterView.kt

@@ -63,7 +63,8 @@ fun Landscape(viewModel: ICounterViewModel) {
                 { viewModel.deleteClicked() },
                 { viewModel.negateClicked() },
                 { viewModel.submitClicked() },
-                { viewModel.keyboardHidden = true })
+                { viewModel.keyboardHidden = true },
+                { viewModel.swapInputScores() })
         }
     }
 }
@@ -102,7 +103,8 @@ fun Portrait(viewModel: ICounterViewModel) {
                 { viewModel.deleteClicked() },
                 { viewModel.negateClicked() },
                 { viewModel.submitClicked() },
-                { viewModel.keyboardHidden = true })
+                { viewModel.keyboardHidden = true },
+                { viewModel.swapInputScores() })
         }
     }
 }
@@ -174,4 +176,7 @@ internal class PreviewViewModel : ICounterViewModel {
     override fun updateFocusStateB(state: Boolean) {
     }
 
+    override fun swapInputScores() {
+    }
+
 }

app/src/main/java/me/zobrist/tichucounter/ui/counter/CounterViewModel.kt

@@ -43,6 +43,7 @@ interface ICounterViewModel {
     fun updateNameB(value: String)
     fun updateFocusStateA(state: Boolean)
     fun updateFocusStateB(state: Boolean)
+    fun swapInputScores()
 }
 
 @HiltViewModel
@@ -235,4 +236,10 @@ class CounterViewModel @Inject constructor(
     override fun updateFocusStateB(state: Boolean) {
         isBFocused = state
     }
+
+    override fun swapInputScores() {
+        val swap = currentScoreA
+        currentScoreA = currentScoreB
+        currentScoreB = swap
+    }
 }

app/src/main/java/me/zobrist/tichucounter/ui/counter/KeyboardView.kt

@@ -6,6 +6,7 @@ import androidx.compose.material.icons.Icons
 import androidx.compose.material.icons.outlined.Backspace
 import androidx.compose.material.icons.outlined.Check
 import androidx.compose.material.icons.outlined.KeyboardHide
+import androidx.compose.material.icons.outlined.SwapHoriz
 import androidx.compose.material3.*
 import androidx.compose.runtime.Composable
 import androidx.compose.ui.ExperimentalComposeUiApi
@@ -36,12 +37,14 @@ fun KeyboardView(
     deleteClicked: () -> Unit,
     negateClicked: () -> Unit,
     submitClicked: () -> Unit,
-    hideKeyboardClicked: () -> Unit
+    hideKeyboardClicked: () -> Unit,
+    onSwapClicked: () -> Unit
 ) {
     val keyboardController = LocalSoftwareKeyboardController.current
 
+
     Column {
-        Row {
+        Row(Modifier.height(IntrinsicSize.Max)) {
             Column(Modifier.weight(1f)) {
                 CenteredTextField(
                     scoreA,
@@ -55,6 +58,19 @@ fun KeyboardView(
                 )
 
             }
+            Surface(
+                Modifier
+                    .wrapContentWidth()
+                    .fillMaxHeight(),
+                tonalElevation = 3.dp,
+                shape = MaterialTheme.shapes.extraSmall
+            ) {
+                Column {
+                    IconButton(onClick = onSwapClicked) {
+                        Icon(Icons.Outlined.SwapHoriz, null)
+                    }
+                }
+            }
             Column(Modifier.weight(1f)) {
 
                 CenteredTextField(
@@ -69,6 +85,7 @@ fun KeyboardView(
             }
         }
 
+
         Row {
             Column(Modifier.weight(1f)) {
                 KeyboardTextButton("1") {
@@ -246,6 +263,7 @@ fun KeyboardViewPreview() {
                 {},
                 {},
                 {},
+                {},
                 {})
         }
     }