Remove redundant conversion. Use val where possible.

app/build.gradle

@@ -91,17 +91,17 @@ dependencies {
     implementation "org.jetbrains.kotlin:kotlin-stdlib:$kotlin_version"
     implementation 'androidx.core:core-ktx:1.10.1'
     implementation 'androidx.appcompat:appcompat:1.6.1'
-    implementation "androidx.compose.material3:material3:1.1.0"
+    implementation "androidx.compose.material3:material3:1.1.1"
     implementation 'com.google.android.play:core-ktx:1.8.1'
     implementation 'com.google.android.play:core-ktx:1.8.1'
     implementation 'com.google.code.gson:gson:2.9.0'
     implementation 'androidx.constraintlayout:constraintlayout:2.1.4'
-    implementation 'androidx.navigation:navigation-fragment-ktx:2.5.3'
-    implementation 'androidx.navigation:navigation-ui-ktx:2.5.3'
+    implementation 'androidx.navigation:navigation-fragment-ktx:2.6.0'
+    implementation 'androidx.navigation:navigation-ui-ktx:2.6.0'
     implementation 'androidx.legacy:legacy-support-v4:1.0.0'
     implementation 'androidx.lifecycle:lifecycle-livedata-ktx:2.6.1'
     implementation 'androidx.lifecycle:lifecycle-viewmodel-ktx:2.6.1'
-    implementation 'androidx.fragment:fragment-ktx:1.5.7'
+    implementation 'androidx.fragment:fragment-ktx:1.6.0'
     implementation 'androidx.preference:preference-ktx:1.2.0'
     implementation 'androidx.recyclerview:recyclerview:1.3.0'
     implementation 'androidx.lifecycle:lifecycle-runtime-ktx:2.6.1'
@@ -111,7 +111,7 @@ dependencies {
     implementation "androidx.compose.ui:ui:1.4.3"
     implementation "androidx.compose.ui:ui-tooling-preview:1.4.3"
     implementation "androidx.compose.runtime:runtime-livedata:1.4.3"
-    implementation "androidx.navigation:navigation-compose:2.5.3"
+    implementation "androidx.navigation:navigation-compose:2.6.0"
     implementation "androidx.lifecycle:lifecycle-viewmodel-compose:2.6.1"
     testImplementation 'junit:junit:4.13.2'
     androidTestImplementation 'androidx.test.ext:junit:1.1.5'
@@ -121,12 +121,13 @@ dependencies {
     debugImplementation "androidx.compose.ui:ui-tooling:1.4.3"
     debugImplementation "androidx.compose.ui:ui-test-manifest:1.4.3"
     kapt "com.google.dagger:hilt-compiler:2.44"
-    implementation "androidx.room:room-runtime:2.5.1"
-    annotationProcessor "androidx.room:room-compiler:2.5.1"
-    kapt "androidx.room:room-compiler:2.5.1"
-    implementation "androidx.room:room-ktx:2.5.1"
+    implementation "androidx.room:room-runtime:2.5.2"
+    annotationProcessor "androidx.room:room-compiler:2.5.2"
+    kapt "androidx.room:room-compiler:2.5.2"
+    implementation "androidx.room:room-ktx:2.5.2"
     implementation "androidx.multidex:multidex:2.0.1"
-    api "androidx.navigation:navigation-fragment-ktx:2.5.3"
+    api "androidx.navigation:navigation-fragment-ktx:2.6.0"
+    implementation "com.patrykandpatrick.vico:compose-m3:1.6.5"
 }
 
 // Allow references to generated code

app/src/main/java/me/zobrist/tichucounter/MainActivity.kt

@@ -6,14 +6,33 @@ import androidx.activity.compose.setContent
 import androidx.activity.viewModels
 import androidx.appcompat.app.AppCompatActivity
 import androidx.appcompat.app.AppCompatDelegate
-import androidx.compose.foundation.layout.*
+import androidx.compose.foundation.layout.padding
 import androidx.compose.material.icons.Icons
-import androidx.compose.material.icons.filled.*
-import androidx.compose.material.icons.outlined.*
-import androidx.compose.material3.*
-import androidx.compose.runtime.*
+import androidx.compose.material.icons.outlined.Calculate
+import androidx.compose.material.icons.outlined.Info
+import androidx.compose.material.icons.outlined.Keyboard
+import androidx.compose.material.icons.outlined.List
+import androidx.compose.material.icons.outlined.MoreVert
+import androidx.compose.material.icons.outlined.Redo
+import androidx.compose.material.icons.outlined.Settings
+import androidx.compose.material.icons.outlined.Undo
+import androidx.compose.material3.DrawerState
+import androidx.compose.material3.DrawerValue
+import androidx.compose.material3.FloatingActionButton
+import androidx.compose.material3.Icon
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.ModalNavigationDrawer
+import androidx.compose.material3.Scaffold
+import androidx.compose.material3.rememberDrawerState
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.remember
+import androidx.compose.runtime.rememberCoroutineScope
+import androidx.compose.runtime.setValue
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.res.stringResource
+import androidx.compose.ui.unit.dp
 import androidx.navigation.NavHostController
 import androidx.navigation.compose.NavHost
 import androidx.navigation.compose.currentBackStackEntryAsState
@@ -22,12 +41,23 @@ import com.google.accompanist.systemuicontroller.rememberSystemUiController
 import dagger.hilt.android.AndroidEntryPoint
 import kotlinx.coroutines.CoroutineScope
 import kotlinx.coroutines.launch
-import me.zobrist.tichucounter.domain.*
+import me.zobrist.tichucounter.domain.DrawerItem
+import me.zobrist.tichucounter.domain.ISystemSettingsListener
+import me.zobrist.tichucounter.domain.KeepScreenOn
+import me.zobrist.tichucounter.domain.Language
+import me.zobrist.tichucounter.domain.Route
+import me.zobrist.tichucounter.domain.SettingsAdapter
+import me.zobrist.tichucounter.domain.Theme
+import me.zobrist.tichucounter.domain.TopBarAction
+import me.zobrist.tichucounter.domain.TopBarState
+import me.zobrist.tichucounter.domain.composable
+import me.zobrist.tichucounter.domain.navigate
 import me.zobrist.tichucounter.ui.AppTheme
 import me.zobrist.tichucounter.ui.MainViewModel
 import me.zobrist.tichucounter.ui.about.AboutView
 import me.zobrist.tichucounter.ui.composables.DropDownMenu
-import me.zobrist.tichucounter.ui.counter.*
+import me.zobrist.tichucounter.ui.counter.Counter
+import me.zobrist.tichucounter.ui.counter.CounterViewModel
 import me.zobrist.tichucounter.ui.history.HistoryList
 import me.zobrist.tichucounter.ui.history.HistoryViewModel
 import me.zobrist.tichucounter.ui.layout.DrawerContent
@@ -37,7 +67,7 @@ import me.zobrist.tichucounter.ui.settings.SettingsViewModel
 import javax.inject.Inject
 
 @AndroidEntryPoint
-class MainActivity : AppCompatActivity(), ISettingsChangeListener {
+class MainActivity : AppCompatActivity(), ISystemSettingsListener {
 
     @Inject
     lateinit var settingsAdapter: SettingsAdapter
@@ -156,6 +186,7 @@ class MainActivity : AppCompatActivity(), ISettingsChangeListener {
             floatingActionButton = {
                 if (showFab) {
                     FloatingActionButton(
+                        modifier = Modifier.padding(end = 75.dp),
                         onClick = { fabAction() }) {
                         Icon(Icons.Outlined.Keyboard, null)
                     }

app/src/main/java/me/zobrist/tichucounter/domain/SettingsAdapter.kt

@@ -14,19 +14,26 @@ enum class Language(val value: LocaleListCompat) {
     GERMAN(LocaleListCompat.forLanguageTags("de"))
 }
 
+enum class CounterMode { LIST, GRAPH }
+
 enum class KeepScreenOn(val value: Boolean) { ON(true), OFF(false) }
 
-interface ISettingsChangeListener {
+interface ISystemSettingsListener {
     fun onLanguageChanged(language: Language)
     fun onThemeChanged(theme: Theme)
     fun onScreenOnChanged(keepOn: KeepScreenOn)
 }
 
+interface IDisplaySettingsListener {
+    fun onCounterModeChanged(counterMode: CounterMode)
+}
+
 @Singleton
 class SettingsAdapter @Inject constructor(@ApplicationContext private val context: Context) {
 
     private val sharedPreferences = PreferenceManager.getDefaultSharedPreferences(context)
-    private var listenerList = mutableListOf<ISettingsChangeListener>()
+    private var systemSettingsListeners = mutableListOf<ISystemSettingsListener>()
+    private var displaySettingsListeners = mutableListOf<IDisplaySettingsListener>()
 
     var language: Language
         private set
@@ -37,37 +44,58 @@ class SettingsAdapter @Inject constructor(@ApplicationContext private val contex
     var keepScreenOn: KeepScreenOn
         private set
 
+    var counterMode: CounterMode
+        private set
+
     init {
         language = try {
             enumValueOf(sharedPreferences.getString(Language::class.simpleName, null)!!)
-        } catch (_: NullPointerException) {
+        } catch (_: Exception) {
             Language.DEFAULT
         }
 
         theme = try {
             enumValueOf(sharedPreferences.getString(Theme::class.simpleName, null)!!)
-        } catch (_: java.lang.Exception) {
+        } catch (_: Exception) {
             Theme.DEFAULT
         }
 
         keepScreenOn = try {
             enumValueOf(sharedPreferences.getString(KeepScreenOn::class.simpleName, null)!!)
-        } catch (_: java.lang.Exception) {
+        } catch (_: Exception) {
             KeepScreenOn.OFF
         }
+
+        counterMode = try {
+            enumValueOf(sharedPreferences.getString(CounterMode::class.simpleName, null)!!)
+        } catch (_: Exception) {
+            CounterMode.LIST
+        }
     }
 
-    fun registerOnChangeListener(listener: ISettingsChangeListener) {
-        listenerList.add(listener)
+    fun registerOnChangeListener(listener: IDisplaySettingsListener) {
+        displaySettingsListeners.add(listener)
+
+        listener.onCounterModeChanged(counterMode)
+    }
+
+    fun unregisterOnChangeListener(listener: IDisplaySettingsListener?) {
+        if (listener != null) {
+            displaySettingsListeners.remove(listener)
+        }
+    }
+
+    fun registerOnChangeListener(listener: ISystemSettingsListener) {
+        systemSettingsListeners.add(listener)
 
         listener.onThemeChanged(theme)
         listener.onLanguageChanged(language)
         listener.onScreenOnChanged(keepScreenOn)
     }
 
-    fun unregisterOnChangeListener(listener: ISettingsChangeListener?) {
+    fun unregisterOnChangeListener(listener: ISystemSettingsListener?) {
         if (listener != null) {
-            listenerList.remove(listener)
+            systemSettingsListeners.remove(listener)
         }
     }
 
@@ -89,6 +117,12 @@ class SettingsAdapter @Inject constructor(@ApplicationContext private val contex
         notifyListeners(setting)
     }
 
+    fun setCounterMode(counterMode: CounterMode) {
+        this.counterMode = counterMode
+        updatePreference(CounterMode::class.simpleName, counterMode.name)
+        notifyListeners(counterMode)
+    }
+
     private fun updatePreference(name: String?, value: String) {
         val editor = sharedPreferences.edit()
         editor.putString(name, value)
@@ -96,21 +130,27 @@ class SettingsAdapter @Inject constructor(@ApplicationContext private val contex
     }
 
     private fun notifyListeners(language: Language) {
-        listenerList.forEach {
+        systemSettingsListeners.forEach {
             it.onLanguageChanged(language)
         }
     }
 
     private fun notifyListeners(theme: Theme) {
-        listenerList.forEach {
+        systemSettingsListeners.forEach {
             it.onThemeChanged(theme)
         }
     }
 
     private fun notifyListeners(keepScreenOn: KeepScreenOn) {
-        listenerList.forEach {
+        systemSettingsListeners.forEach {
             it.onScreenOnChanged(keepScreenOn)
         }
     }
 
+    private fun notifyListeners(counterMode: CounterMode) {
+        displaySettingsListeners.forEach {
+            it.onCounterModeChanged(counterMode)
+        }
+    }
+
 }

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

@@ -1,19 +1,31 @@
 package me.zobrist.tichucounter.ui.counter
 
 import android.content.res.Configuration
+import androidx.compose.foundation.layout.Box
 import androidx.compose.foundation.layout.Column
 import androidx.compose.foundation.layout.Row
+import androidx.compose.foundation.layout.fillMaxHeight
+import androidx.compose.foundation.layout.padding
+import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.outlined.ShowChart
+import androidx.compose.material.icons.outlined.TableRows
+import androidx.compose.material3.FloatingActionButton
+import androidx.compose.material3.Icon
 import androidx.compose.material3.Surface
 import androidx.compose.runtime.Composable
 import androidx.compose.runtime.getValue
 import androidx.compose.runtime.mutableStateOf
 import androidx.compose.runtime.remember
 import androidx.compose.runtime.setValue
+import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.focus.FocusRequester
+import androidx.compose.ui.graphics.vector.ImageVector
 import androidx.compose.ui.platform.LocalConfiguration
 import androidx.compose.ui.tooling.preview.Preview
+import androidx.compose.ui.unit.dp
 import me.zobrist.tichucounter.data.entity.Round
+import me.zobrist.tichucounter.domain.CounterMode
 import me.zobrist.tichucounter.ui.AppTheme
 
 
@@ -50,10 +62,13 @@ fun Landscape(viewModel: ICounterViewModel) {
                 viewModel.totalScoreB
             )
 
-            RoundListView(
-                viewModel.roundScoreList,
-                Modifier.weight(1f)
+            RoundView(
+                Modifier.weight(1f),
+                viewModel.counterMode,
+                viewModel.roundScoreList
             )
+            { viewModel.changeCounterMode() }
+
         }
         if (!viewModel.keyboardHidden) {
             Column(Modifier.weight(1f)) {
@@ -81,10 +96,12 @@ fun Portrait(viewModel: ICounterViewModel) {
             viewModel.totalScoreB
         )
 
-        RoundListView(
-            viewModel.roundScoreList,
-            Modifier.weight(1f)
+        RoundView(
+            Modifier.weight(1f),
+            viewModel.counterMode,
+            viewModel.roundScoreList
         )
+        { viewModel.changeCounterMode() }
 
         if (!viewModel.keyboardHidden) {
             KeyBoardView(viewModel = viewModel)
@@ -92,6 +109,41 @@ fun Portrait(viewModel: ICounterViewModel) {
     }
 }
 
+@Composable
+private fun RoundView(
+    modifier: Modifier = Modifier,
+    counterMode: CounterMode,
+    rounds: List<Round>,
+    changeCounterMode: () -> Unit
+) {
+    Box(modifier) {
+        if (counterMode == CounterMode.LIST) {
+            RoundListView(
+                rounds,
+                Modifier.fillMaxHeight()
+            )
+        } else {
+            RoundGraphView(
+                rounds,
+                Modifier.fillMaxHeight()
+            )
+        }
+        FloatingActionButton(
+            modifier = Modifier
+                .align(Alignment.BottomEnd)
+                .padding(15.dp),
+            onClick = { changeCounterMode() }) {
+            Icon(getIcon(counterMode), null)
+        }
+    }
+}
+
+private fun getIcon(counterMode: CounterMode): ImageVector {
+    return when (counterMode) {
+        CounterMode.LIST -> Icons.Outlined.ShowChart
+        CounterMode.GRAPH -> Icons.Outlined.TableRows
+    }
+}
 
 @Preview(name = "Light Mode")
 @Preview(name = "Dark Mode", uiMode = Configuration.UI_MODE_NIGHT_YES, showBackground = true)
@@ -123,6 +175,7 @@ internal class PreviewViewModel : ICounterViewModel {
         listOf("TeamA", "asdffd", "TeamB", "really really long Team Name that is way too long")
     override val teamNameSuggestionsB: List<String> =
         listOf("TeamA", "asdffd", "TeamB", "really really long Team Name that is way too long")
+    override val counterMode: CounterMode = CounterMode.GRAPH
 
     override fun focusLastInput() {
     }
@@ -155,6 +208,9 @@ internal class PreviewViewModel : ICounterViewModel {
     override fun updateNameB(value: String) {
     }
 
+    override fun changeCounterMode() {
+    }
+
     override fun updateFocusStateA(state: Boolean) {
     }
 

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

@@ -11,6 +11,9 @@ import kotlinx.coroutines.Job
 import kotlinx.coroutines.delay
 import kotlinx.coroutines.launch
 import me.zobrist.tichucounter.data.entity.Round
+import me.zobrist.tichucounter.domain.CounterMode
+import me.zobrist.tichucounter.domain.IDisplaySettingsListener
+import me.zobrist.tichucounter.domain.SettingsAdapter
 import me.zobrist.tichucounter.domain.Tichu
 import me.zobrist.tichucounter.domain.digitCount
 import me.zobrist.tichucounter.domain.getTotalPoints
@@ -57,16 +60,19 @@ interface ICounterViewModel : IKeyBoardViewModel {
     val teamNameB: String
     val teamNameSuggestionsA: List<String>
     val teamNameSuggestionsB: List<String>
+    val counterMode: CounterMode
 
     fun updateNameA(value: String)
     fun updateNameB(value: String)
+    fun changeCounterMode()
 }
 
 @HiltViewModel
 class CounterViewModel @Inject constructor(
-    private val gameRepository: GameRepository
+    private val gameRepository: GameRepository,
+    private val settingsAdapter: SettingsAdapter
 ) :
-    ViewModel(), ICounterViewModel {
+    ViewModel(), ICounterViewModel, IDisplaySettingsListener {
 
     override var roundScoreList by mutableStateOf(emptyList<Round>())
         private set
@@ -113,6 +119,17 @@ class CounterViewModel @Inject constructor(
     override var teamNameSuggestionsB by mutableStateOf(listOf<String>())
         private set
 
+    override var counterMode by mutableStateOf(CounterMode.LIST)
+        private set
+
+    init {
+        settingsAdapter.registerOnChangeListener(this)
+    }
+
+    override fun onCleared() {
+        settingsAdapter.unregisterOnChangeListener(this)
+    }
+
     override var activeValue: String
         get() {
             return if (isBFocused) {
@@ -157,8 +174,6 @@ class CounterViewModel @Inject constructor(
     init {
         viewModelScope.launch {
             gameRepository.getActiveGameFlow().collect {
-                if (it != null) {
-
                     val score = it.getTotalPoints()
 
                     roundScoreList = it.rounds
@@ -169,8 +184,6 @@ class CounterViewModel @Inject constructor(
                     teamNameB = it.game.nameB
 
                     buildTeamNameSuggestions()
-
-                }
             }
         }
 
@@ -289,6 +302,14 @@ class CounterViewModel @Inject constructor(
         }
     }
 
+    override fun changeCounterMode() {
+        val nextMode = when (settingsAdapter.counterMode) {
+            CounterMode.LIST -> CounterMode.GRAPH
+            CounterMode.GRAPH -> CounterMode.LIST
+        }
+        settingsAdapter.setCounterMode(nextMode)
+    }
+
     override fun updateFocusStateA(state: Boolean) {
         isAFocused = state
         if (state) {
@@ -362,4 +383,8 @@ class CounterViewModel @Inject constructor(
 
         return filtered.sorted().sortedBy { it.length }.take(10)
     }
+
+    override fun onCounterModeChanged(counterMode: CounterMode) {
+        this.counterMode = counterMode
+    }
 }

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

@@ -1,17 +1,40 @@
 package me.zobrist.tichucounter.ui.counter
 
 import android.content.res.Configuration
-import androidx.compose.animation.core.*
+import androidx.compose.animation.core.RepeatMode
+import androidx.compose.animation.core.animateFloat
+import androidx.compose.animation.core.infiniteRepeatable
+import androidx.compose.animation.core.rememberInfiniteTransition
+import androidx.compose.animation.core.tween
 import androidx.compose.foundation.interaction.MutableInteractionSource
 import androidx.compose.foundation.interaction.collectIsPressedAsState
-import androidx.compose.foundation.layout.*
+import androidx.compose.foundation.layout.Box
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.IntrinsicSize
+import androidx.compose.foundation.layout.Row
+import androidx.compose.foundation.layout.fillMaxHeight
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.height
+import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.layout.width
+import androidx.compose.foundation.layout.wrapContentWidth
 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.*
+import androidx.compose.material3.Divider
+import androidx.compose.material3.ElevatedButton
+import androidx.compose.material3.Icon
+import androidx.compose.material3.IconButton
+import androidx.compose.material3.LocalTextStyle
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.Surface
+import androidx.compose.material3.Text
+import androidx.compose.material3.TextField
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.remember
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.focus.FocusRequester

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

@@ -0,0 +1,104 @@
+package me.zobrist.tichucounter.ui.counter
+
+import android.content.res.Configuration
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.Surface
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.graphics.toArgb
+import androidx.compose.ui.tooling.preview.Preview
+import com.patrykandpatrick.vico.compose.axis.vertical.startAxis
+import com.patrykandpatrick.vico.compose.chart.Chart
+import com.patrykandpatrick.vico.compose.chart.line.lineChart
+import com.patrykandpatrick.vico.compose.chart.scroll.rememberChartScrollSpec
+import com.patrykandpatrick.vico.core.axis.formatter.DecimalFormatAxisValueFormatter
+import com.patrykandpatrick.vico.core.chart.line.LineChart
+import com.patrykandpatrick.vico.core.chart.values.AxisValuesOverrider
+import com.patrykandpatrick.vico.core.entry.FloatEntry
+import com.patrykandpatrick.vico.core.entry.composed.ComposedChartEntryModelProducer.Companion.composedChartEntryModelOf
+import com.patrykandpatrick.vico.core.entry.entryModelOf
+import me.zobrist.tichucounter.data.entity.Round
+import me.zobrist.tichucounter.ui.AppTheme
+import kotlin.math.ceil
+import kotlin.math.floor
+
+
+@Composable
+fun RoundGraphView(rounds: List<Round>, modifier: Modifier = Modifier) {
+
+    val points = getPoints(rounds)
+
+    val range = getRange(points.first, points.second, 50)
+
+    val specA = LineChart.LineSpec(MaterialTheme.colorScheme.primary.toArgb())
+    val specB = LineChart.LineSpec(MaterialTheme.colorScheme.secondary.toArgb())
+
+
+    Chart(
+        chart = lineChart(
+            lines = listOf(specA, specB),
+            axisValuesOverrider = AxisValuesOverrider.fixed(
+                minY = range.first,
+                maxY = range.second
+            )
+        ),
+        model = composedChartEntryModelOf(
+            listOf(
+                entryModelOf(points.first),
+                entryModelOf(points.second)
+            )
+        ),
+        startAxis = startAxis(
+            maxLabelCount = 10,
+            valueFormatter = DecimalFormatAxisValueFormatter("#")
+        ),
+        chartScrollSpec = rememberChartScrollSpec(isScrollEnabled = false),
+        modifier = modifier
+    )
+}
+
+private fun getPoints(rounds: List<Round>): Pair<List<FloatEntry>, List<FloatEntry>> {
+    val a = mutableListOf(FloatEntry(0f, 0f))
+    val b = mutableListOf(FloatEntry(0f, 0f))
+
+    var sumA = 0
+    var sumB = 0
+
+    rounds.forEachIndexed { index, round ->
+        sumA += round.scoreA
+        sumB += round.scoreB
+        a.add(FloatEntry((index + 1).toFloat(), sumA.toFloat()))
+        b.add(FloatEntry((index + 1).toFloat(), sumB.toFloat()))
+    }
+    return Pair(a, b)
+}
+
+private fun getRange(a: List<FloatEntry>, b: List<FloatEntry>, step: Int): Pair<Float, Float> {
+
+    val min = (a + b).minBy { it.y }
+    val max = (a + b).maxBy { it.y }
+
+    val lo = floor(min.y / step) * step
+    val hi = ceil(max.y / step) * step
+
+    return Pair(lo, hi)
+}
+
+@Preview(name = "Light Mode")
+@Preview(name = "Dark Mode", uiMode = Configuration.UI_MODE_NIGHT_YES, showBackground = true)
+@Composable
+fun RoundGraphViewPreview() {
+    val rounds = listOf(
+        Round(1, 10, -10),
+        Round(1, 5, 95),
+        Round(1, 100, 0),
+        Round(1, 125, -25),
+        Round(1, 50, 50)
+    )
+
+    AppTheme {
+        Surface {
+            RoundGraphView(rounds, Modifier)
+        }
+    }
+}

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

@@ -21,7 +21,7 @@ import me.zobrist.tichucounter.data.entity.Round
 import me.zobrist.tichucounter.ui.AppTheme
 
 @Composable
-fun RoundListView(rounds: List<Round>, modifier: Modifier) {
+fun RoundListView(rounds: List<Round>, modifier: Modifier = Modifier) {
     val lazyListState = rememberLazyListState()
     val scope = rememberCoroutineScope()
 

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

@@ -1,9 +1,12 @@
 package me.zobrist.tichucounter.ui.counter
 
 import android.content.res.Configuration
-import androidx.compose.foundation.layout.*
-import androidx.compose.material3.*
-import androidx.compose.runtime.*
+import androidx.compose.foundation.layout.Row
+import androidx.compose.material3.LocalTextStyle
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.TextFieldDefaults
+import androidx.compose.material3.surfaceColorAtElevation
+import androidx.compose.runtime.Composable
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.text.style.TextAlign
 import androidx.compose.ui.tooling.preview.Preview

app/src/main/java/me/zobrist/tichucounter/ui/layout/DrawerContent.kt

@@ -1,20 +1,28 @@
 package me.zobrist.tichucounter.ui.layout
 
 import android.content.res.Configuration
-import androidx.compose.foundation.layout.*
+import androidx.compose.foundation.layout.padding
 import androidx.compose.material.icons.Icons
-import androidx.compose.material.icons.filled.*
-import androidx.compose.material.icons.outlined.*
-import androidx.compose.material3.*
-import androidx.compose.runtime.*
+import androidx.compose.material.icons.outlined.Calculate
+import androidx.compose.material.icons.outlined.List
+import androidx.compose.material.icons.outlined.Settings
+import androidx.compose.material3.Divider
+import androidx.compose.material3.Icon
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.ModalDrawerSheet
+import androidx.compose.material3.NavigationDrawerItem
+import androidx.compose.material3.NavigationDrawerItemDefaults
+import androidx.compose.material3.Surface
+import androidx.compose.material3.Text
+import androidx.compose.runtime.Composable
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.res.stringResource
 import androidx.compose.ui.tooling.preview.Preview
 import androidx.compose.ui.unit.dp
 import me.zobrist.tichucounter.R
-import me.zobrist.tichucounter.domain.*
+import me.zobrist.tichucounter.domain.DrawerItem
+import me.zobrist.tichucounter.domain.Route
 import me.zobrist.tichucounter.ui.AppTheme
-import me.zobrist.tichucounter.ui.counter.*
 
 @Composable
 fun DrawerContent(