ref #8,9: Replace arrow graphics

app/src/main/kotlin/de/timklge/karooheadwind/datatypes/HeadwindDirectionDataType.kt

@@ -1,6 +1,7 @@
 package de.timklge.karooheadwind.datatypes
 
 import android.content.Context
+import android.graphics.BitmapFactory
 import android.util.Log
 import androidx.compose.ui.unit.DpSize
 import androidx.glance.appwidget.ExperimentalGlanceRemoteViewsApi
@@ -54,6 +55,12 @@ class HeadwindDirectionDataType(
 
     override fun startView(context: Context, config: ViewConfig, emitter: ViewEmitter) {
         Log.d(KarooHeadwindExtension.TAG, "Starting headwind direction view with $emitter")
+
+        val baseBitmap = BitmapFactory.decodeResource(
+            context.resources,
+            de.timklge.karooheadwind.R.drawable.arrow
+        )
+
         val configJob = CoroutineScope(Dispatchers.IO).launch {
             emitter.onNext(UpdateGraphicConfig(showHeader = false))
             awaitCancellation()
@@ -76,10 +83,10 @@ class HeadwindDirectionDataType(
                     val windSpeed = streamData.data.current.windSpeed
                     val windDirection = streamData.value
                     val headwindSpeed = cos( (windDirection + 180) * Math.PI / 180.0) * windSpeed
-                    val windSpeedText = if(streamData.settings.showWindspeedOverlay) "${headwindSpeed.roundToInt()}" else null
+                    val windSpeedText = "${headwindSpeed.roundToInt()}"
 
                     val result = glance.compose(context, DpSize.Unspecified) {
-                        HeadwindDirection(windDirection.roundToInt(), config.textSize, windSpeedText)
+                        HeadwindDirection(baseBitmap, windDirection.roundToInt(), config.textSize, windSpeedText)
                     }
 
                     emitter.updateView(result.remoteViews)

app/src/main/kotlin/de/timklge/karooheadwind/datatypes/HeadwindDirectionView.kt

@@ -1,23 +1,21 @@
 package de.timklge.karooheadwind.datatypes
 
-import android.R
-import android.content.res.Resources
+import android.content.Context
 import android.graphics.Bitmap
 import android.graphics.BitmapFactory
 import android.graphics.Canvas
 import android.graphics.Paint
-import android.graphics.Path
+import android.util.Log
 import androidx.compose.runtime.Composable
 import androidx.compose.ui.graphics.Color
-import androidx.compose.ui.graphics.StrokeCap
-import androidx.compose.ui.unit.TextUnit
-import androidx.compose.ui.unit.TextUnitType
+import androidx.compose.ui.platform.LocalContext
 import androidx.compose.ui.unit.dp
+import androidx.compose.ui.unit.sp
 import androidx.glance.ColorFilter
 import androidx.glance.GlanceModifier
 import androidx.glance.Image
 import androidx.glance.ImageProvider
-import androidx.glance.LocalContext
+import androidx.glance.appwidget.background
 import androidx.glance.background
 import androidx.glance.color.ColorProvider
 import androidx.glance.layout.Alignment
@@ -27,45 +25,44 @@ import androidx.glance.layout.fillMaxSize
 import androidx.glance.layout.padding
 import androidx.glance.preview.ExperimentalGlancePreviewApi
 import androidx.glance.preview.Preview
+import androidx.glance.text.FontFamily
 import androidx.glance.text.Text
 import androidx.glance.text.TextStyle
+import de.timklge.karooheadwind.KarooHeadwindExtension
 import kotlin.math.roundToInt
 
 
-val bitmapsByBearing = mutableMapOf<Int, Bitmap>()
+data class BitmapWithBearing(val bitmap: Bitmap, val bearing: Int)
 
-fun getArrowBitmapByBearing(bearing: Int): Bitmap {
+val bitmapsByBearing = mutableMapOf<BitmapWithBearing, Bitmap>()
+
+
+fun getArrowBitmapByBearing(baseBitmap: Bitmap, bearing: Int): Bitmap {
     synchronized(bitmapsByBearing) {
-        val bearingRounded = (((bearing + 360) / 5.0).roundToInt() * 5) % 360
+        val bearingRounded = (((bearing + 360) / 10.0).roundToInt() * 10) % 360
 
-        val storedBitmap = bitmapsByBearing[bearingRounded]
+        val bitmapWithBearing = BitmapWithBearing(baseBitmap, bearingRounded)
+        val storedBitmap = bitmapsByBearing[bitmapWithBearing]
         if (storedBitmap != null) return storedBitmap
 
         val bitmap = Bitmap.createBitmap(128, 128, Bitmap.Config.ARGB_8888)
         val canvas = Canvas(bitmap)
 
         val paint = Paint().apply {
-            color = android.graphics.Color.WHITE
+            color = android.graphics.Color.BLACK
             style = Paint.Style.STROKE
-            strokeWidth = 15f
+//            strokeWidth = 15f
             isAntiAlias = true
         }
 
-        val path = Path().apply {
-            moveTo(64f, 0f) // Top point of the arrow
-            lineTo(128f, 128f) // Bottom right point of the arrow
-            lineTo(64f, 96f) // Middle bottom point of the arrow
-            lineTo(0f, 128f) // Bottom left point of the arrow
-            close() // Close the path to form the arrow shape
-        }
-
         canvas.save()
-        canvas.rotate(bearing.toFloat(), 64f, 64f) // Rotate the canvas based on the bearing
-        canvas.scale(0.75f, 0.75f, 64f, 64f) // Scale the arrow down to fit the canvas
-        canvas.drawPath(path, paint)
+        canvas.scale((bitmap.width / baseBitmap.width.toFloat()), (bitmap.height / baseBitmap.height.toFloat()), (bitmap.width / 2).toFloat(), (bitmap.height / 2).toFloat())
+        Log.d(KarooHeadwindExtension.TAG, "Drawing arrow at $bearingRounded")
+        canvas.rotate(bearing.toFloat(), (bitmap.width / 2).toFloat(), (bitmap.height / 2).toFloat())
+        canvas.drawBitmap(baseBitmap, ((bitmap.width - baseBitmap.width) / 2).toFloat(), ((bitmap.height - baseBitmap.height) / 2).toFloat(), paint)
         canvas.restore()
 
-        bitmapsByBearing[bearingRounded] = bitmap
+        bitmapsByBearing[bitmapWithBearing] = bitmap
 
         return bitmap
     }
@@ -74,7 +71,7 @@ fun getArrowBitmapByBearing(bearing: Int): Bitmap {
 @OptIn(ExperimentalGlancePreviewApi::class)
 @Preview(widthDp = 200, heightDp = 150)
 @Composable
-fun HeadwindDirection(bearing: Int, fontSize: Int, overlayText: String? = null) {
+fun HeadwindDirection(baseBitmap: Bitmap, bearing: Int, fontSize: Int, overlayText: String) {
     Box(
         modifier = GlanceModifier.fillMaxSize().padding(5.dp),
         contentAlignment = Alignment(
@@ -83,19 +80,17 @@ fun HeadwindDirection(bearing: Int, fontSize: Int, overlayText: String? = null)
         ),
     ) {
         Image(
-                modifier = GlanceModifier.fillMaxSize(),
-                provider = ImageProvider(getArrowBitmapByBearing(bearing)),
-                contentDescription = "Relative wind direction indicator",
-                contentScale = ContentScale.Fit,
-                colorFilter = ColorFilter.tint(ColorProvider(Color.Black, Color.White))
+            modifier = GlanceModifier.fillMaxSize(),
+            provider = ImageProvider(getArrowBitmapByBearing(baseBitmap, bearing)),
+            contentDescription = "Relative wind direction indicator",
+            contentScale = ContentScale.Fit,
+            colorFilter = ColorFilter.tint(ColorProvider(Color.Black, Color.White))
         )
 
-        overlayText?.let {
-            Text(
-                overlayText,
-                style = TextStyle(ColorProvider(Color.White, Color.White), fontSize = TextUnit(fontSize.toFloat()*0.7f, TextUnitType.Sp)),
-                modifier = GlanceModifier.background(Color(0f, 0f, 0f, 0.5f)).padding(5.dp)
-            )
-        }
+        Text(
+            overlayText,
+            style = TextStyle(ColorProvider(Color.Black, Color.White), fontSize = (0.5 * fontSize).sp, fontFamily = FontFamily.Monospace),
+            modifier = GlanceModifier.background(Color(1f, 1f, 1f, 0.5f), Color(0f, 0f, 0f, 0.5f)).padding(2.dp)
+        )
     }
 }

app/src/main/kotlin/de/timklge/karooheadwind/datatypes/WeatherDataType.kt

@@ -1,6 +1,7 @@
 package de.timklge.karooheadwind.datatypes
 
 import android.content.Context
+import android.graphics.BitmapFactory
 import android.util.Log
 import androidx.compose.ui.unit.DpSize
 import androidx.glance.appwidget.ExperimentalGlanceRemoteViewsApi
@@ -58,6 +59,11 @@ class WeatherDataType(
             awaitCancellation()
         }
 
+        val baseBitmap = BitmapFactory.decodeResource(
+            context.resources,
+            de.timklge.karooheadwind.R.drawable.arrow_0
+        )
+
         data class StreamData(val data: OpenMeteoCurrentWeatherResponse, val settings: HeadwindSettings)
 
         val viewJob = CoroutineScope(Dispatchers.IO).launch {
@@ -73,7 +79,7 @@ class WeatherDataType(
                     val interpretation = WeatherInterpretation.fromWeatherCode(data.current.weatherCode)
 
                     val result = glance.compose(context, DpSize.Unspecified) {
-                        Weather(interpretation, data.current.windDirection.roundToInt(), data.current.windSpeed.roundToInt(), data.current.windGusts.roundToInt())
+                        Weather(baseBitmap, interpretation, data.current.windDirection.roundToInt(), data.current.windSpeed.roundToInt(), data.current.windGusts.roundToInt())
                     }
 
                     emitter.updateView(result.remoteViews)

app/src/main/kotlin/de/timklge/karooheadwind/datatypes/WeatherView.kt

@@ -1,5 +1,6 @@
 package de.timklge.karooheadwind.datatypes
 
+import android.graphics.Bitmap
 import androidx.compose.runtime.Composable
 import androidx.compose.ui.graphics.Color
 import androidx.compose.ui.unit.TextUnit
@@ -41,7 +42,7 @@ fun getWeatherIcon(interpretation: WeatherInterpretation): Int {
 @OptIn(ExperimentalGlancePreviewApi::class)
 @Preview(widthDp = 200, heightDp = 150)
 @Composable
-fun Weather(current: WeatherInterpretation, windBearing: Int, windSpeed: Int, windGusts: Int) {
+fun Weather(baseBitmap: Bitmap, current: WeatherInterpretation, windBearing: Int, windSpeed: Int, windGusts: Int) {
     Column(modifier = GlanceModifier.fillMaxSize(), horizontalAlignment = Alignment.End) {
         Row(modifier = GlanceModifier.defaultWeight(), horizontalAlignment = Alignment.End) {
             val imageW = 70
@@ -58,7 +59,7 @@ fun Weather(current: WeatherInterpretation, windBearing: Int, windSpeed: Int, wi
         Row(horizontalAlignment = Alignment.CenterHorizontally, verticalAlignment = Alignment.CenterVertically) {
             Image(
                 modifier = GlanceModifier.height(20.dp).width(12.dp),
-                provider = ImageProvider(getArrowBitmapByBearing(windBearing)),
+                provider = ImageProvider(getArrowBitmapByBearing(baseBitmap, windBearing)),
                 contentDescription = "Current wind direction",
                 contentScale = ContentScale.Fit,
                 colorFilter = ColorFilter.tint(ColorProvider(Color.Black, Color.White))