chore: bump version to 4.4.7-ba7opf.2 (versionCode 472)

Android plurals have no 'one' category in Chinese (zh plural rules only
contain 'other'), so a single QSO rendered as '1 QSOs' on Chinese-locale
devices. Replace the plurals resource with explicit singular/plural
strings selected in code.

core/presentation/src/main/res/values-zh/strings.xml

@@ -122,10 +122,8 @@
     <string name="map_visibility">能见度：%s</string>
     <!-- Worked-grid QSO dialog -->
     <string name="grid_qso_calls_count">%d 个呼号 · %d 次通联</string>
-    <plurals name="grid_qso_count">
-        <item quantity="one">%d QSO</item>
-        <item quantity="other">%d QSOs</item>
-    </plurals>
+    <string name="grid_qso_count_one">%d QSO</string>
+    <string name="grid_qso_count_many">%d QSOs</string>
     <string name="grid_qso_first">首通</string>
     <string name="grid_qso_no_sat">卫星未知</string>
     <string name="map_visible">日照中</string>

core/presentation/src/main/res/values/strings.xml

@@ -147,10 +147,8 @@
     <string name="map_visibility">Visibility: %s</string>
     <!-- Worked-grid QSO dialog -->
     <string name="grid_qso_calls_count">%d callsigns · %d QSOs</string>
-    <plurals name="grid_qso_count">
-        <item quantity="one">%d QSO</item>
-        <item quantity="other">%d QSOs</item>
-    </plurals>
+    <string name="grid_qso_count_one">%d QSO</string>
+    <string name="grid_qso_count_many">%d QSOs</string>
     <string name="grid_qso_first">First</string>
     <string name="grid_qso_no_sat">satellite unknown</string>
     <string name="map_visible">Visible</string>

feature/map/src/main/java/com/rtbishop/look4sat/feature/map/MaidenheadGridOverlay.kt

@@ -428,7 +428,15 @@ class MaidenheadGridOverlay : Overlay() {
 
     /** Y pixel for a latitude, or null when outside the viewport. */
     private fun projectionToY(projection: Projection, lat: Double): Float? {
-        val geo = org.osmdroid.util.GeoPoint(lat, 0.0)
+        // Web Mercator is undefined beyond ±85.0511° (osmdroid clamps the world
+        // to TileSystemWebMercator limits). Projecting the polar field rows
+        // (lat=±90: Maidenhead row R = 80..90°N, row A = -90..-80°S) yields
+        // ±9.2e18 pixel coordinates that the canvas cannot rasterize, so the
+        // polar grid lines silently vanish. Clamp to the Mercator limit: the
+        // polar rows then project onto the screen edge and their lines are
+        // drawn (the off-limit sliver beyond 85.05° is invisible anyway).
+        val clamped = lat.coerceIn(-MAX_MERCATOR_LAT, MAX_MERCATOR_LAT)
+        val geo = org.osmdroid.util.GeoPoint(clamped, 0.0)
         val p = projection.toPixels(geo, null)
         return p.y.toFloat()
     }
@@ -484,6 +492,9 @@ class MaidenheadGridOverlay : Overlay() {
         const val FIELD_LON = 20.0
         const val SUB_SQUARE_LAT = 1.0
         const val SUB_SQUARE_LON = 2.0
+        // Web Mercator latitude limit (osmdroid TileSystemWebMercator): projecting
+        // beyond it produces ±9.2e18 pixel coordinates the canvas cannot draw.
+        const val MAX_MERCATOR_LAT = 85.05112877980658
         // Zoom at which the 2°x1° sub-square grid lines/fills appear.
         // 5.0 → 6.0: at zoom 5 a full field spans too little screen width and
         // the sub-square grid is too dense to read; 6 roughly doubles the

feature/map/src/main/java/com/rtbishop/look4sat/feature/map/MapScreen.kt

@@ -62,7 +62,6 @@ import androidx.compose.ui.draw.rotate
 import androidx.compose.ui.draw.scale
 import androidx.compose.ui.graphics.Color as ComposeColor
 import androidx.compose.ui.platform.LocalContext
-import androidx.compose.ui.res.pluralStringResource
 import androidx.compose.ui.res.stringResource
 import androidx.compose.ui.unit.dp
 import androidx.compose.ui.unit.sp
@@ -207,8 +206,13 @@ private fun MapScreen(uiState: MapState, onAction: (MapAction) -> Unit, mapView:
             if (p.type == AwardType.VUCC) p.copy(workedKeys = vuccGrids, count = vuccGrids.size) else p
         }
     }
-    // Attach the tap listener whenever grid mode / worked grids change.
-    val workedGrids = uiState.workedGrids
+    // Worked grids drawn on the map: filtered by the selected operated grid
+    // (null = all operated grids). Drives both the green fills and the tap
+    // listener below, so switching the selector changes which cells are green.
+    val workedGrids = remember(uiState.workedGrids, vuccByMyGrid, selectedMyGrid) {
+        if (selectedMyGrid == null) uiState.workedGrids
+        else vuccByMyGrid[selectedMyGrid] ?: emptySet()
+    }
     val isGridMode = uiState.isGridMode
     DisposableEffect(isGridMode, workedGrids) {
         val receiver = object : org.osmdroid.events.MapEventsReceiver {
@@ -297,7 +301,7 @@ private fun MapScreen(uiState: MapState, onAction: (MapAction) -> Unit, mapView:
                         // stationPosition would swallow the centering forever.
                         val shouldCenter = uiState.isGridMode && !prevGridMode
                         setGridMode(
-                            uiState.isGridMode, uiState.workedGrids, uiState.roamedGrids, view,
+                            uiState.isGridMode, workedGrids, uiState.roamedGrids, view,
                             uiState.stationPosition,
                             centerOnStation = shouldCenter
                         )
@@ -322,11 +326,12 @@ private fun MapScreen(uiState: MapState, onAction: (MapAction) -> Unit, mapView:
                     }
                 }
                 // Top-left: operated-grid selector for VUCC counting (grid mode only).
-                val myGrid = selectedMyGrid
-                if (uiState.isGridMode && selectedAward == AwardType.VUCC && myGrid != null) {
+                // Shown whenever per-grid QSO data exists; "All" (null) is available.
+                if (uiState.isGridMode && selectedAward == AwardType.VUCC && vuccByMyGrid.isNotEmpty()) {
                     VuccGridSelector(
                         options = vuccByMyGrid,
-                        selected = myGrid,
+                        allCount = uiState.workedGrids.size,
+                        selected = selectedMyGrid,
                         onSelect = { selectedMyGrid = it },
                         modifier = Modifier
                             .align(Alignment.TopStart)
@@ -440,7 +445,10 @@ private fun WorkedGridCallRow(
                 modifier = Modifier.weight(1f)
             )
             Text(
-                text = pluralStringResource(R.plurals.grid_qso_count, callQsos.size, callQsos.size),
+                // Plurals resources don't work for zh (only 'other' matches), so
+                // pick the singular/plural string explicitly.
+                text = if (callQsos.size == 1) stringResource(R.string.grid_qso_count_one, 1)
+                else stringResource(R.string.grid_qso_count_many, callQsos.size),
                 style = MaterialTheme.typography.bodySmall,
                 color = MaterialTheme.colorScheme.onSurfaceVariant,
                 textAlign = androidx.compose.ui.text.style.TextAlign.Center,
@@ -638,12 +646,13 @@ private fun AwardChipsRow(
 @Composable
 private fun VuccGridSelector(
     options: Map<String, Set<String>>,
-    selected: String,
-    onSelect: (String) -> Unit,
+    allCount: Int,
+    selected: String?,
+    onSelect: (String?) -> Unit,
     modifier: Modifier = Modifier
 ) {
     var expanded by remember { mutableStateOf(false) }
-    // Most-worked grid first; selection is made on tap.
+    // Most-worked grid first; selection is made on tap. "All" sits last.
     val sorted = remember(options) { options.entries.sortedByDescending { it.value.size } }
     Surface(
         color = ComposeColor.Black.copy(alpha = 0.45f),
@@ -658,7 +667,8 @@ private fun VuccGridSelector(
                     .padding(start = 10.dp, end = 6.dp, top = 4.dp, bottom = 4.dp)
             ) {
                 Text(
-                    text = "$selected (${options[selected]?.size ?: 0})",
+                    text = if (selected == null) "All ($allCount)"
+                    else "$selected (${options[selected]?.size ?: 0})",
                     color = ComposeColor.White,
                     fontSize = 12.sp,
                     fontFamily = androidx.compose.ui.text.font.FontFamily.Monospace
@@ -691,6 +701,24 @@ private fun VuccGridSelector(
                         )
                     }
                 }
+                // "All" always listed last: shows every worked grid combined.
+                Row(
+                    verticalAlignment = Alignment.CenterVertically,
+                    modifier = Modifier
+                        .fillMaxWidth()
+                        .clickable {
+                            onSelect(null)
+                            expanded = false
+                        }
+                        .padding(horizontal = 10.dp, vertical = 3.dp)
+                ) {
+                    Text(
+                        text = "All ($allCount)",
+                        color = if (selected == null) MaterialTheme.colorScheme.primary else ComposeColor.White,
+                        fontSize = 12.sp,
+                        fontFamily = androidx.compose.ui.text.font.FontFamily.Monospace
+                    )
+                }
             }
         }
     }

gradle/libs.versions.toml

@@ -1,8 +1,8 @@
 [versions]
 #noinspection UnusedVersionCatalogEntry
-appVersionCode = "471"
+appVersionCode = "472"
 #noinspection UnusedVersionCatalogEntry
-appVersionName = "4.4.7-ba7opf.1"
+appVersionName = "4.4.7-ba7opf.2"
 #noinspection UnusedVersionCatalogEntry
 compileSdk = "37"
 #noinspection UnusedVersionCatalogEntry