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239 changes: 239 additions & 0 deletions
239
WordPress/src/main/java/org/wordpress/android/ui/stats/refresh/SubscribersChartMarkerView.kt
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,239 @@ | ||
| package org.wordpress.android.ui.stats.refresh | ||
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| import android.content.Context | ||
| import android.graphics.BlurMaskFilter | ||
| import android.graphics.BlurMaskFilter.Blur.NORMAL | ||
| import android.graphics.Canvas | ||
| import android.graphics.CornerPathEffect | ||
| import android.graphics.Paint | ||
| import android.graphics.Path | ||
| import android.graphics.Path.Direction.CW | ||
| import android.graphics.RectF | ||
| import android.widget.TextView | ||
| import androidx.core.content.ContextCompat | ||
| import com.github.mikephil.charting.charts.LineChart | ||
| import com.github.mikephil.charting.components.MarkerView | ||
| import com.github.mikephil.charting.data.Entry | ||
| import com.github.mikephil.charting.data.LineDataSet | ||
| import com.github.mikephil.charting.highlight.Highlight | ||
| import com.github.mikephil.charting.utils.MPPointF | ||
| import dagger.hilt.android.AndroidEntryPoint | ||
| import org.wordpress.android.R | ||
| import org.wordpress.android.ui.stats.refresh.utils.StatsDateFormatter | ||
| import org.wordpress.android.ui.stats.refresh.utils.StatsUtils | ||
| import javax.inject.Inject | ||
|
|
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| @AndroidEntryPoint | ||
| class SubscribersChartMarkerView @Inject constructor( | ||
| context: Context | ||
| ) : MarkerView(context, R.layout.stats_subscribers_chart_marker) { | ||
| @Inject | ||
| lateinit var statsUtils: StatsUtils | ||
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| @Inject | ||
| lateinit var statsDateFormatter: StatsDateFormatter | ||
| private val countView = findViewById<TextView>(R.id.marker_text1) | ||
| private val dateView = findViewById<TextView>(R.id.marker_text2) | ||
|
|
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| override fun refreshContent(e: Entry?, highlight: Highlight?) { | ||
| val lineChart = chartView as? LineChart ?: return | ||
| val xValue = e?.x?.toInt() ?: return | ||
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| val dataSet = lineChart.lineData.dataSets.first() as LineDataSet | ||
| // get the corresponding Y axis value according to the current X axis position | ||
| val index = if (xValue < dataSet.values.size) xValue else 0 | ||
| val yValue = dataSet.values[index].y | ||
|
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| val count = yValue.toLong() | ||
| countView.text = count.toString() | ||
| val date = statsDateFormatter.getStatsDateFromPeriodDay(e.data.toString()) | ||
| dateView.text = date | ||
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| super.refreshContent(e, highlight) | ||
| } | ||
|
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| override fun getOffsetForDrawingAtPoint(posX: Float, posY: Float): MPPointF { | ||
| // posY posX refers to the position of the upper left corner of the markerView on the chart | ||
| val width = width.toFloat() | ||
| val height = height.toFloat() | ||
|
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| // If the y coordinate of the point is less than the height of the markerView, | ||
| // if it is not processed, it will exceed the upper boundary. After processing, | ||
| // the arrow is up at this time, and we need to move the icon down by the size of the arrow | ||
| if (posY <= height + ARROW_SIZE) { | ||
| offset.y = ARROW_SIZE | ||
| } else { | ||
| // Otherwise, it is normal, because our default is that the arrow is facing downwards, | ||
| // and then the normal offset is that you need to offset the height of the markerView and the arrow size, | ||
| // plus a stroke width, because you need to see the upper border of the dialog box | ||
| offset.y = -height - ARROW_SIZE - STROKE_WIDTH | ||
| } | ||
|
|
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| // handle X direction, left, middle, and right side of the chart | ||
| if (posX > chartView.width - width) { // If it exceeds the right boundary, offset the view width to the left | ||
| offset.x = -width | ||
| } else { // by default, no offset (because the point is in the upper left corner) | ||
| offset.x = 0F | ||
| // If it is greater than half of the markerView, the arrow is in the middle, | ||
| // so it is offset by half the width to the right | ||
| if (posX > width / 2) { | ||
| offset.x = -width / 2 | ||
| } | ||
| } | ||
|
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| return offset | ||
| } | ||
|
|
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| override fun draw(canvas: Canvas, posX: Float, posY: Float) { | ||
| super.draw(canvas, posX, posY) | ||
|
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| val saveId = canvas.save() | ||
|
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| drawToolTip(canvas, posX, posY) | ||
| draw(canvas) | ||
|
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| canvas.restoreToCount(saveId) | ||
| } | ||
|
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| @Suppress("LongMethod") | ||
| private fun drawToolTip(canvas: Canvas?, posX: Float, posY: Float) { | ||
| val borderPaint = Paint(Paint.ANTI_ALIAS_FLAG).apply { | ||
| strokeWidth = STROKE_WIDTH | ||
| style = Paint.Style.STROKE | ||
| strokeJoin = Paint.Join.ROUND | ||
| strokeCap = Paint.Cap.ROUND | ||
| pathEffect = CornerPathEffect(CORNER_RADIUS) | ||
| color = context.getColor(R.color.blue_100) | ||
| } | ||
|
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| val bgPaint = Paint(Paint.ANTI_ALIAS_FLAG).apply { | ||
| style = Paint.Style.FILL | ||
| strokeCap = Paint.Cap.ROUND | ||
| pathEffect = CornerPathEffect(CORNER_RADIUS) | ||
| color = context.getColor(R.color.blue_100) | ||
| } | ||
|
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| val chart = chartView | ||
| val width = width.toFloat() | ||
| val height = height.toFloat() | ||
|
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| val offset = getOffsetForDrawingAtPoint(posX, posY) | ||
|
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| val path = Path() | ||
|
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| if (posY < height + ARROW_SIZE) { // Processing exceeds the upper boundary | ||
| path.moveTo(0f, 0f) | ||
| if (posX > chart.width - width) { // Exceed the right boundary | ||
| path.lineTo(width - ARROW_SIZE, 0f) | ||
| path.lineTo(width, -ARROW_SIZE + CIRCLE_OFFSET) | ||
| path.lineTo(width, 0f) | ||
| } else { | ||
| if (posX > width / 2) { // In the middle of the chart | ||
| path.lineTo(width / 2 - ARROW_SIZE / 2, 0f) | ||
| path.lineTo(width / 2, -ARROW_SIZE + CIRCLE_OFFSET) | ||
| path.lineTo(width / 2 + ARROW_SIZE / 2, 0f) | ||
| } else { // Exceed the left margin | ||
| path.lineTo(0f, -ARROW_SIZE + CIRCLE_OFFSET) | ||
| path.lineTo(0 + ARROW_SIZE, 0f) | ||
| } | ||
| } | ||
| path.lineTo(0 + width, 0f) | ||
| path.lineTo(0 + width, 0 + height) | ||
| path.lineTo(0f, 0 + height) | ||
| path.lineTo(0f, 0f) | ||
| path.offset(posX + offset.x, posY + offset.y) | ||
| } else { // Does not exceed the upper boundary | ||
| path.moveTo(0f, 0f) | ||
| path.lineTo(0 + width, 0f) | ||
| path.lineTo(0 + width, 0 + height) | ||
| if (posX > chart.width - width) { | ||
| path.lineTo(width, height + ARROW_SIZE - CIRCLE_OFFSET) | ||
| path.lineTo(width - ARROW_SIZE, 0 + height) | ||
| path.lineTo(0f, 0 + height) | ||
| } else { | ||
| if (posX > width / 2) { | ||
| path.lineTo(width / 2 + ARROW_SIZE / 2, 0 + height) | ||
| path.lineTo(width / 2, height + ARROW_SIZE - CIRCLE_OFFSET) | ||
| path.lineTo(width / 2 - ARROW_SIZE / 2, 0 + height) | ||
| path.lineTo(0f, 0 + height) | ||
| } else { | ||
| path.lineTo(0 + ARROW_SIZE, 0 + height) | ||
| path.lineTo(0f, height + ARROW_SIZE - CIRCLE_OFFSET) | ||
| path.lineTo(0f, 0 + height) | ||
| } | ||
| } | ||
| path.lineTo(0f, 0f) | ||
| path.offset(posX + offset.x, posY + offset.y) | ||
| } | ||
| path.close() | ||
|
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| // translate to the correct position and draw | ||
| canvas?.apply { | ||
| drawPath(path, bgPaint) | ||
| drawPath(path, borderPaint) | ||
| drawDataPoint(canvas, posX, posY) | ||
| translate(posX + offset.x, posY + offset.y) | ||
| } | ||
| } | ||
|
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| private fun drawDataPoint(canvas: Canvas?, posX: Float, posY: Float) { | ||
| val circleShadowPaint = Paint().apply { | ||
| style = Paint.Style.FILL | ||
| color = ContextCompat.getColor(context, R.color.gray_10) | ||
| maskFilter = BlurMaskFilter(MASK_FILTER_RADIUS, NORMAL) | ||
| } | ||
|
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| val circleBorderPaint = Paint().apply { | ||
| style = Paint.Style.STROKE | ||
| strokeWidth = CIRCLE_STROKE_WIDTH | ||
| isAntiAlias = true | ||
| isDither = true | ||
| color = ContextCompat.getColor(context, R.color.blue_0) | ||
| } | ||
|
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| val circleFillPaint = Paint().apply { | ||
| style = Paint.Style.FILL | ||
| isAntiAlias = true | ||
| isDither = true | ||
| color = ContextCompat.getColor(context, R.color.blue_50) | ||
| } | ||
|
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| val circleShadowPath = Path().apply { | ||
| addCircle(posX, posY, CIRCLE_SHADOW_RADIUS, CW) | ||
| } | ||
|
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| val circleFillPath = Path().apply { | ||
| addCircle(posX, posY, CIRCLE_RADIUS, CW) | ||
| } | ||
|
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| val circleBorderPath = Path().apply { | ||
| addCircle(posX, posY, CIRCLE_RADIUS, CW) | ||
| fillType = Path.FillType.EVEN_ODD | ||
| } | ||
|
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| val innerCircle = RectF().apply { | ||
| inset(CIRCLE_STROKE_WIDTH, CIRCLE_STROKE_WIDTH) | ||
| } | ||
| if (innerCircle.width() > 0 && innerCircle.height() > 0) { | ||
| circleBorderPath.addCircle(posX, posY, CIRCLE_RADIUS, CW) | ||
| } | ||
|
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| canvas?.apply { | ||
| drawPath(circleShadowPath, circleShadowPaint) | ||
| drawPath(circleFillPath, circleFillPaint) | ||
| drawPath(circleBorderPath, circleBorderPaint) | ||
| } | ||
| } | ||
|
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| companion object { | ||
| const val CORNER_RADIUS = 10F | ||
| const val ARROW_SIZE = 40F | ||
| const val STROKE_WIDTH = 5F | ||
| const val CIRCLE_OFFSET = 14F | ||
|
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| const val CIRCLE_RADIUS = 12F | ||
| const val CIRCLE_SHADOW_RADIUS = CIRCLE_RADIUS + 2F | ||
| const val CIRCLE_STROKE_WIDTH = 4F | ||
| const val MASK_FILTER_RADIUS = 5F | ||
| } | ||
| } |
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