diff options
Diffstat (limited to 'android-app/app/src/main')
3 files changed, 237 insertions, 0 deletions
diff --git a/android-app/app/src/main/kotlin/com/example/androidapp/logbook/LogbookFormatter.kt b/android-app/app/src/main/kotlin/com/example/androidapp/logbook/LogbookFormatter.kt new file mode 100644 index 0000000..b0a910a --- /dev/null +++ b/android-app/app/src/main/kotlin/com/example/androidapp/logbook/LogbookFormatter.kt @@ -0,0 +1,81 @@ +package com.example.androidapp.logbook + +import com.example.androidapp.data.model.LogbookEntry +import java.util.Calendar +import java.util.TimeZone + +data class LogbookRow( + val time: String, + val position: String, + val sog: String, + val cog: String, + val wind: String, + val baro: String, + val depth: String, + val eventNotes: String +) + +data class LogbookPage( + val title: String, + val columns: List<String>, + val rows: List<LogbookRow> +) + +object LogbookFormatter { + + val COLUMNS = listOf( + "Time (UTC)", "Position", "SOG", "COG", "Wind", "Baro", "Depth", "Event / Notes" + ) + + private val COMPASS_POINTS = arrayOf( + "N", "NNE", "NE", "ENE", "E", "ESE", "SE", "SSE", + "S", "SSW", "SW", "WSW", "W", "WNW", "NW", "NNW" + ) + + fun formatTime(timestampMs: Long): String { + val cal = Calendar.getInstance(TimeZone.getTimeZone("UTC")) + cal.timeInMillis = timestampMs + return "%02d:%02d".format( + cal.get(Calendar.HOUR_OF_DAY), + cal.get(Calendar.MINUTE) + ) + } + + fun formatPosition(lat: Double, lon: Double): String { + val latDir = if (lat >= 0) "N" else "S" + val lonDir = if (lon >= 0) "E" else "W" + val absLat = Math.abs(lat) + val absLon = Math.abs(lon) + val latDeg = absLat.toInt() + val lonDeg = absLon.toInt() + val latMin = (absLat - latDeg) * 60.0 + val lonMin = (absLon - lonDeg) * 60.0 + return "%d°%.1f%s %d°%.1f%s".format(latDeg, latMin, latDir, lonDeg, lonMin, lonDir) + } + + fun toCompassPoint(degrees: Double): String { + val normalized = ((degrees % 360.0) + 360.0) % 360.0 + val index = ((normalized + 11.25) / 22.5).toInt() % 16 + return COMPASS_POINTS[index] + } + + fun formatWind(knots: Double?, directionDeg: Double?): String { + if (knots == null) return "" + val knotsStr = "%.0fkt".format(knots) + return if (directionDeg == null) knotsStr else "$knotsStr ${toCompassPoint(directionDeg)}" + } + + fun toRow(entry: LogbookEntry): LogbookRow = LogbookRow( + time = formatTime(entry.timestampMs), + position = formatPosition(entry.lat, entry.lon), + sog = "%.1f".format(entry.sogKnots), + cog = "%.0f".format(entry.cogDegrees), + wind = formatWind(entry.windKnots, entry.windDirectionDeg), + baro = entry.baroHpa?.let { "%.0f".format(it) } ?: "", + depth = entry.depthMeters?.let { "%.0fm".format(it) } ?: "", + eventNotes = listOfNotNull(entry.event, entry.notes).joinToString(": ") + ) + + fun toPage(entries: List<LogbookEntry>, title: String = "Trip Logbook"): LogbookPage = + LogbookPage(title = title, columns = COLUMNS, rows = entries.map { toRow(it) }) +} diff --git a/android-app/app/src/main/kotlin/com/example/androidapp/logbook/LogbookPdfExporter.kt b/android-app/app/src/main/kotlin/com/example/androidapp/logbook/LogbookPdfExporter.kt new file mode 100644 index 0000000..ff8ce9a --- /dev/null +++ b/android-app/app/src/main/kotlin/com/example/androidapp/logbook/LogbookPdfExporter.kt @@ -0,0 +1,137 @@ +package com.example.androidapp.logbook + +import android.graphics.Canvas +import android.graphics.Color +import android.graphics.Paint +import android.graphics.Typeface +import android.graphics.pdf.PdfDocument +import com.example.androidapp.data.model.LogbookEntry +import java.io.OutputStream + +/** + * Renders trip logbook entries to a formatted PDF (landscape A4). + * Section 4.8 — Trip Logging and Electronic Logbook. + */ +object LogbookPdfExporter { + + // Landscape A4 in points (1 point = 1/72 inch) + private const val PAGE_WIDTH = 842 + private const val PAGE_HEIGHT = 595 + private const val MARGIN = 36f + private const val ROW_HEIGHT = 22f + private const val HEADER_HEIGHT = 36f + private const val TITLE_SIZE = 16f + private const val CELL_TEXT_SIZE = 9f + + // Column width fractions (must sum to 1.0) + private val COL_FRACTIONS = floatArrayOf( + 0.08f, // Time + 0.18f, // Position + 0.06f, // SOG + 0.06f, // COG + 0.10f, // Wind + 0.07f, // Baro + 0.07f, // Depth + 0.38f // Event / Notes + ) + + fun export( + entries: List<LogbookEntry>, + outputStream: OutputStream, + title: String = "Trip Logbook" + ) { + val page = LogbookFormatter.toPage(entries, title) + val document = PdfDocument() + try { + val pageInfo = PdfDocument.PageInfo.Builder(PAGE_WIDTH, PAGE_HEIGHT, 1).create() + val pdfPage = document.startPage(pageInfo) + drawPage(pdfPage.canvas, page) + document.finishPage(pdfPage) + document.writeTo(outputStream) + } finally { + document.close() + } + } + + private fun drawPage(canvas: Canvas, page: LogbookPage) { + val usableWidth = PAGE_WIDTH - 2 * MARGIN + val colWidths = COL_FRACTIONS.map { it * usableWidth } + + val titlePaint = Paint().apply { + textSize = TITLE_SIZE + typeface = Typeface.DEFAULT_BOLD + color = Color.BLACK + } + val headerTextPaint = Paint().apply { + textSize = CELL_TEXT_SIZE + typeface = Typeface.DEFAULT_BOLD + color = Color.WHITE + } + val cellPaint = Paint().apply { + textSize = CELL_TEXT_SIZE + color = Color.BLACK + } + val linePaint = Paint().apply { + color = Color.LTGRAY + strokeWidth = 0.5f + } + val headerBgPaint = Paint().apply { + color = Color.rgb(41, 82, 123) + style = Paint.Style.FILL + } + val altBgPaint = Paint().apply { + color = Color.rgb(235, 242, 252) + style = Paint.Style.FILL + } + val borderPaint = Paint().apply { + color = Color.DKGRAY + strokeWidth = 1f + style = Paint.Style.STROKE + } + + var y = MARGIN + + // Title + canvas.drawText(page.title, MARGIN, y + TITLE_SIZE, titlePaint) + y += HEADER_HEIGHT + + val tableTop = y + + // Column header background + canvas.drawRect(MARGIN, y, PAGE_WIDTH - MARGIN, y + ROW_HEIGHT, headerBgPaint) + + // Column header text + var x = MARGIN + 3f + page.columns.forEachIndexed { i, col -> + canvas.drawText(col, x, y + ROW_HEIGHT - 6f, headerTextPaint) + x += colWidths[i] + } + y += ROW_HEIGHT + + // Data rows + page.rows.forEach { row -> + if (y + ROW_HEIGHT > PAGE_HEIGHT - MARGIN) return@forEach + + if (page.rows.indexOf(row) % 2 == 1) { + canvas.drawRect(MARGIN, y, PAGE_WIDTH - MARGIN, y + ROW_HEIGHT, altBgPaint) + } + + val cells = listOf( + row.time, row.position, row.sog, row.cog, + row.wind, row.baro, row.depth, row.eventNotes + ) + x = MARGIN + 3f + cells.forEachIndexed { i, cell -> + val maxChars = (colWidths[i] / (CELL_TEXT_SIZE * 0.55)).toInt().coerceAtLeast(4) + canvas.drawText(cell.take(maxChars), x, y + ROW_HEIGHT - 6f, cellPaint) + x += colWidths[i] + } + + canvas.drawLine(MARGIN, y + ROW_HEIGHT, PAGE_WIDTH - MARGIN, y + ROW_HEIGHT, linePaint) + y += ROW_HEIGHT + } + + // Table border + canvas.drawRect(MARGIN, tableTop, PAGE_WIDTH - MARGIN, y, borderPaint) + } +} diff --git a/android-app/app/src/main/kotlin/org/terst/nav/data/model/LogbookEntry.kt b/android-app/app/src/main/kotlin/org/terst/nav/data/model/LogbookEntry.kt new file mode 100644 index 0000000..f41e917 --- /dev/null +++ b/android-app/app/src/main/kotlin/org/terst/nav/data/model/LogbookEntry.kt @@ -0,0 +1,19 @@ +package org.terst.nav.data.model + +/** + * A single entry in the electronic trip logbook. + * Matches the log format from Section 4.8 of COMPONENT_DESIGN.md. + */ +data class LogbookEntry( + val timestampMs: Long, + val lat: Double, + val lon: Double, + val sogKnots: Double, + val cogDegrees: Double, + val windKnots: Double? = null, + val windDirectionDeg: Double? = null, + val baroHpa: Double? = null, + val depthMeters: Double? = null, + val event: String? = null, + val notes: String? = null +) |