diff options
Diffstat (limited to 'android-app/app/src/main/temp/CompassRoseView.kt')
| -rwxr-xr-x | android-app/app/src/main/temp/CompassRoseView.kt | 217 |
1 files changed, 0 insertions, 217 deletions
diff --git a/android-app/app/src/main/temp/CompassRoseView.kt b/android-app/app/src/main/temp/CompassRoseView.kt deleted file mode 100755 index 8e755a3..0000000 --- a/android-app/app/src/main/temp/CompassRoseView.kt +++ /dev/null @@ -1,217 +0,0 @@ -package org.terst.nav.temp // Temporarily placing in 'temp' due to permissions, actual package should be 'org.terst.nav' - -import android.content.Context -import android.graphics.Canvas -import android.graphics.Color -import android.graphics.Paint -import android.graphics.Rect -import android.util.AttributeSet -import android.view.View -import kotlin.math.cos -import kotlin.math.min -import kotlin.math.sin - -class CompassRoseView @JvmOverloads constructor( - context: Context, - attrs: AttributeSet? = null, - defStyleAttr: Int = 0 -) : View(context, attrs, defStyleAttr) { - - private var heading: Float = 0f // Current heading in degrees - set(value) { - field = value % 360 // Ensure heading is within 0-359 - invalidate() - } - private var cog: Float = 0f // Course Over Ground in degrees - set(value) { - field = value % 360 - invalidate() - } - private var isTrueHeading: Boolean = true // True for True heading, false for Magnetic - - private val rosePaint = Paint(Paint.ANTI_ALIAS_FLAG).apply { - color = Color.DKGRAY - style = Paint.Style.STROKE - strokeWidth = 2f - } - - private val textPaint = Paint(Paint.ANTI_ALIAS_FLAG).apply { - color = Color.WHITE - textSize = 30f - textAlign = Paint.Align.CENTER - } - - private val cardinalTextPaint = Paint(Paint.ANTI_ALIAS_FLAG).apply { - color = Color.WHITE - textSize = 40f - textAlign = Paint.Align.CENTER - isFakeBoldText = true - } - - private val majorTickPaint = Paint(Paint.ANTI_ALIAS_FLAG).apply { - color = Color.WHITE - strokeWidth = 3f - } - - private val minorTickPaint = Paint(Paint.ANTI_ALIAS_FLAG).apply { - color = Color.GRAY - strokeWidth = 1f - } - - private val headingNeedlePaint = Paint(Paint.ANTI_ALIAS_FLAG).apply { - color = Color.RED - style = Paint.Style.FILL - } - - private val cogArrowPaint = Paint(Paint.ANTI_ALIAS_FLAG).apply { - color = Color.BLUE - style = Paint.Style.FILL - strokeWidth = 5f - } - - private var viewCenterX: Float = 0f - private var viewCenterY: Float = 0f - private var radius: Float = 0f - - override fun onSizeChanged(w: Int, h: Int, oldw: Int, oldh: Int) { - super.onSizeChanged(w, h, oldw, oldh) - viewCenterX = w / 2f - viewCenterY = h / 2f - radius = min(w, h) / 2f - 40f // Leave some padding - textPaint.textSize = radius / 6f - cardinalTextPaint.textSize = radius / 4.5f - } - - override fun onDraw(canvas: Canvas) { - super.onDraw(canvas) - - // Draw outer circle - canvas.drawCircle(viewCenterX, viewCenterY, radius, rosePaint) - - // Draw cardinal and intercardinal points - drawCardinalPoints(canvas) - - // Draw tick marks and degree labels - drawDegreeMarks(canvas) - - // Draw heading needle - drawHeadingNeedle(canvas, heading, headingNeedlePaint, radius * 0.8f) - - // Draw COG arrow - drawCogArrow(canvas, cog, cogArrowPaint, radius * 0.6f) - - // Draw current heading text in the center - drawHeadingText(canvas) - } - - private fun drawCardinalPoints(canvas: Canvas) { - val cardinalPoints = listOf("N", "E", "S", "W") - val angles = listOf(0f, 90f, 180f, 270f) - val textBound = Rect() - - for (i in cardinalPoints.indices) { - val angleRad = Math.toRadians((angles[i] - 90).toDouble()).toFloat() // Adjust for canvas 0deg at 3 o'clock - val x = viewCenterX + (radius * 0.9f) * cos(angleRad) - val y = viewCenterY + (radius * 0.9f) * sin(angleRad) - - val text = cardinalPoints[i] - cardinalTextPaint.getTextBounds(text, 0, text.length, textBound) - val textHeight = textBound.height() - - canvas.drawText(text, x, y + textHeight / 2, cardinalTextPaint) - } - } - - private fun drawDegreeMarks(canvas: Canvas) { - for (i in 0 until 360 step 5) { - val isMajor = (i % 30 == 0) // Major ticks every 30 degrees - val tickLength = if (isMajor) 30f else 15f - val currentTickPaint = if (isMajor) majorTickPaint else minorTickPaint - val startRadius = radius - tickLength - - val angleRad = Math.toRadians((i - 90).toDouble()).toFloat() // Adjust for canvas 0deg at 3 o'clock - - val startX = viewCenterX + startRadius * cos(angleRad) - val startY = viewCenterY + startRadius * sin(angleRad) - val endX = viewCenterX + radius * cos(angleRad) - val endY = viewCenterY + radius * sin(angleRad) - - canvas.drawLine(startX, startY, endX, endY, currentTickPaint) - - if (isMajor && i != 0) { // Draw degree labels for major ticks (except North) - val textRadius = radius - tickLength - textPaint.textSize / 2 - 10f - val textX = viewCenterX + textRadius * cos(angleRad) - val textY = viewCenterY + textRadius * sin(angleRad) + textPaint.textSize / 2 - - canvas.drawText(i.toString(), textX, textY, textPaint) - } - } - } - - private fun drawHeadingNeedle(canvas: Canvas, angle: Float, paint: Paint, length: Float) { - val angleRad = Math.toRadians((angle - 90).toDouble()).toFloat() // Adjust for canvas 0deg at 3 o'clock - val endX = viewCenterX + length * cos(angleRad) - val endY = viewCenterY + length * sin(angleRad) - - // Draw a simple triangle for the needle - val needleWidth = 20f - val path = android.graphics.Path() - path.moveTo(endX, endY) - path.lineTo(viewCenterX + needleWidth * cos(angleRad - Math.toRadians(90.0).toFloat()), - viewCenterY + needleWidth * sin(angleRad - Math.toRadians(90.0).toFloat())) - path.lineTo(viewCenterX + needleWidth * cos(angleRad + Math.toRadians(90.0).toFloat()), - viewCenterY + needleWidth * sin(angleRad + Math.toRadians(90.0).toFloat())) - path.close() - canvas.drawPath(path, paint) - } - - private fun drawCogArrow(canvas: Canvas, angle: Float, paint: Paint, length: Float) { - val angleRad = Math.toRadians((angle - 90).toDouble()).toFloat() // Adjust for canvas 0deg at 3 o'clock - val endX = viewCenterX + length * cos(angleRad) - val endY = viewCenterY + length * sin(angleRad) - - val startX = viewCenterX + (length * 0.5f) * cos(angleRad) - val startY = viewCenterY + (length * 0.5f) * sin(angleRad) - - canvas.drawLine(startX, startY, endX, endY, paint) - - // Draw arrow head - val arrowHeadLength = 25f - val arrowHeadWidth = 15f - val arrowPath = android.graphics.Path() - arrowPath.moveTo(endX, endY) - arrowPath.lineTo(endX - arrowHeadLength * cos(angleRad - Math.toRadians(30.0).toFloat()), - endY - arrowHeadLength * sin(angleRad - Math.toRadians(30.0).toFloat())) - arrowPath.moveTo(endX, endY) - arrowPath.lineTo(endX - arrowHeadLength * cos(angleRad + Math.toRadians(30.0).toFloat()), - endY - arrowHeadLength * sin(angleRad + Math.toRadians(30.0).toFloat())) - canvas.drawPath(arrowPath, paint) - } - - private fun drawHeadingText(canvas: Canvas) { - val headingText = "${heading.toInt()}°" + if (isTrueHeading) "T" else "M" - textPaint.color = Color.WHITE - textPaint.textSize = radius / 3.5f // Larger text for main heading - canvas.drawText(headingText, viewCenterX, viewCenterY + textPaint.textSize / 3, textPaint) - } - - /** - * Sets the current heading to display. - * @param newHeading The new heading value in degrees (0-359). - * @param isTrue Whether the heading is True (magnetic variation applied) or Magnetic. - */ - fun setHeading(newHeading: Float, isTrue: Boolean) { - this.heading = newHeading - this.isTrueHeading = isTrue - invalidate() - } - - /** - * Sets the Course Over Ground (COG) to display. - * @param newCog The new COG value in degrees (0-359). - */ - fun setCog(newCog: Float) { - this.cog = newCog - invalidate() - } -} |