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Rework Utils #595

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4950a6a
Rework Utils
hannesa2 Dec 27, 2025
89dc4b2
Move getNormalizedAngle
hannesa2 Dec 27, 2025
f6633d1
Use other Canvas function
hannesa2 Dec 27, 2025
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11 changes: 4 additions & 7 deletions chartLib/src/main/kotlin/info/appdev/charting/renderer/BarChartRenderer.kt
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Original file line number Diff line number Diff line change
Expand Up @@ -12,10 +12,10 @@ import info.appdev.charting.interfaces.datasets.IBarDataSet
import info.appdev.charting.utils.Fill
import info.appdev.charting.utils.PointF
import info.appdev.charting.utils.Transformer
import info.appdev.charting.utils.Utils
import info.appdev.charting.utils.ViewPortHandler
import info.appdev.charting.utils.calcTextHeight
import info.appdev.charting.utils.convertDpToPixel
import info.appdev.charting.utils.drawImage
import kotlin.math.ceil
import kotlin.math.min

Expand Down Expand Up @@ -332,8 +332,7 @@ open class BarChartRenderer(
py += iconsOffset.y

icon?.let {
Utils.drawImage(
canvas,
canvas.drawImage(
it,
px.toInt(),
py.toInt()
Expand Down Expand Up @@ -392,8 +391,7 @@ open class BarChartRenderer(
py += iconsOffset.y

icon?.let {
Utils.drawImage(
canvas,
canvas.drawImage(
it,
px.toInt(),
py.toInt()
Expand Down Expand Up @@ -471,8 +469,7 @@ open class BarChartRenderer(
val icon = barEntry.icon

icon?.let {
Utils.drawImage(
canvas,
canvas.drawImage(
it,
(x + iconsOffset.x).toInt(),
(y + iconsOffset.y).toInt()
Expand Down
5 changes: 2 additions & 3 deletions chartLib/src/main/kotlin/info/appdev/charting/renderer/BubbleChartRenderer.kt
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Original file line number Diff line number Diff line change
Expand Up @@ -8,10 +8,10 @@ import info.appdev.charting.highlight.Highlight
import info.appdev.charting.interfaces.dataprovider.BubbleDataProvider
import info.appdev.charting.interfaces.datasets.IBubbleDataSet
import info.appdev.charting.utils.PointF
import info.appdev.charting.utils.Utils
import info.appdev.charting.utils.ViewPortHandler
import info.appdev.charting.utils.calcTextHeight
import info.appdev.charting.utils.convertDpToPixel
import info.appdev.charting.utils.drawImage
import kotlin.math.abs
import kotlin.math.max
import kotlin.math.min
Expand Down Expand Up @@ -161,8 +161,7 @@ open class BubbleChartRenderer(
val icon = bubbleEntry.icon

icon?.let { ico ->
Utils.drawImage(
canvas,
canvas.drawImage(
ico,
(x + iconsOffset.x).toInt(),
(y + iconsOffset.y).toInt()
Expand Down
5 changes: 2 additions & 3 deletions chartLib/src/main/kotlin/info/appdev/charting/renderer/CandleStickChartRenderer.kt
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Original file line number Diff line number Diff line change
Expand Up @@ -8,9 +8,9 @@ import info.appdev.charting.interfaces.dataprovider.CandleDataProvider
import info.appdev.charting.interfaces.datasets.ICandleDataSet
import info.appdev.charting.utils.ColorTemplate
import info.appdev.charting.utils.PointF
import info.appdev.charting.utils.Utils
import info.appdev.charting.utils.ViewPortHandler
import info.appdev.charting.utils.convertDpToPixel
import info.appdev.charting.utils.drawImage

open class CandleStickChartRenderer(
var dataProvider: CandleDataProvider, animator: ChartAnimator,
Expand Down Expand Up @@ -268,8 +268,7 @@ open class CandleStickChartRenderer(
val icon = entry.icon

icon?.let { ico ->
Utils.drawImage(
canvas,
canvas.drawImage(
ico,
(x + iconsOffset.x).toInt(),
(y + iconsOffset.y).toInt()
Expand Down
10 changes: 4 additions & 6 deletions chartLib/src/main/kotlin/info/appdev/charting/renderer/HorizontalBarChartRenderer.kt
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Original file line number Diff line number Diff line change
Expand Up @@ -17,6 +17,7 @@ import info.appdev.charting.utils.ViewPortHandler
import info.appdev.charting.utils.calcTextHeight
import info.appdev.charting.utils.calcTextWidth
import info.appdev.charting.utils.convertDpToPixel
import info.appdev.charting.utils.drawImage
import kotlin.math.ceil
import kotlin.math.min

Expand Down Expand Up @@ -256,8 +257,7 @@ open class HorizontalBarChartRenderer(
py += iconsOffset.y

icon?.let {
Utils.drawImage(
canvas,
canvas.drawImage(
it,
px.toInt(),
py.toInt()
Expand Down Expand Up @@ -332,8 +332,7 @@ open class HorizontalBarChartRenderer(
py += iconsOffset.y

icon?.let { myIcon ->
Utils.drawImage(
canvas,
canvas.drawImage(
myIcon,
px.toInt(),
py.toInt()
Expand Down Expand Up @@ -417,8 +416,7 @@ open class HorizontalBarChartRenderer(
val icon = it.icon

icon?.let { myIcon ->
Utils.drawImage(
canvas,
canvas.drawImage(
myIcon,
(x + iconsOffset.x).toInt(),
(y + iconsOffset.y).toInt()
Expand Down
5 changes: 2 additions & 3 deletions chartLib/src/main/kotlin/info/appdev/charting/renderer/LineChartRenderer.kt
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Original file line number Diff line number Diff line change
Expand Up @@ -16,9 +16,9 @@ import info.appdev.charting.interfaces.datasets.ILineDataSet
import info.appdev.charting.utils.ColorTemplate
import info.appdev.charting.utils.PointF
import info.appdev.charting.utils.Transformer
import info.appdev.charting.utils.Utils
import info.appdev.charting.utils.ViewPortHandler
import info.appdev.charting.utils.convertDpToPixel
import info.appdev.charting.utils.drawImage
import java.lang.ref.WeakReference
import kotlin.math.max
import kotlin.math.min
Expand Down Expand Up @@ -542,8 +542,7 @@ open class LineChartRenderer(
val icon = entry.icon

icon?.let {
Utils.drawImage(
canvas,
canvas.drawImage(
it,
(x + iconsOffset.x).toInt(),
(y + iconsOffset.y).toInt()
Expand Down
5 changes: 3 additions & 2 deletions chartLib/src/main/kotlin/info/appdev/charting/renderer/PieChartRenderer.kt
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Original file line number Diff line number Diff line change
Expand Up @@ -23,6 +23,7 @@ import info.appdev.charting.utils.Utils
import info.appdev.charting.utils.ViewPortHandler
import info.appdev.charting.utils.calcTextHeight
import info.appdev.charting.utils.convertDpToPixel
import info.appdev.charting.utils.drawImage
import java.lang.ref.WeakReference
import kotlin.math.abs
import kotlin.math.ceil
Expand Down Expand Up @@ -571,8 +572,8 @@ open class PieChartRenderer(
y += iconsOffset.x

icon?.let {
Utils.drawImage(
this, it, x.toInt(), y.toInt()
this.drawImage(
it, x.toInt(), y.toInt()
)
}
}
Expand Down
5 changes: 2 additions & 3 deletions chartLib/src/main/kotlin/info/appdev/charting/renderer/RadarChartRenderer.kt
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Original file line number Diff line number Diff line change
Expand Up @@ -11,9 +11,9 @@ import info.appdev.charting.highlight.Highlight
import info.appdev.charting.interfaces.datasets.IRadarDataSet
import info.appdev.charting.utils.ColorTemplate
import info.appdev.charting.utils.PointF
import info.appdev.charting.utils.Utils
import info.appdev.charting.utils.ViewPortHandler
import info.appdev.charting.utils.convertDpToPixel
import info.appdev.charting.utils.drawImage
import info.appdev.charting.utils.getPosition

open class RadarChartRenderer(
Expand Down Expand Up @@ -179,8 +179,7 @@ open class RadarChartRenderer(
pIcon.y += iconsOffset.x

icon?.let {
Utils.drawImage(
canvas,
canvas.drawImage(
it,
pIcon.x.toInt(),
pIcon.y.toInt()
Expand Down
5 changes: 2 additions & 3 deletions chartLib/src/main/kotlin/info/appdev/charting/renderer/ScatterChartRenderer.kt
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Original file line number Diff line number Diff line change
Expand Up @@ -6,9 +6,9 @@ import info.appdev.charting.highlight.Highlight
import info.appdev.charting.interfaces.dataprovider.ScatterDataProvider
import info.appdev.charting.interfaces.datasets.IScatterDataSet
import info.appdev.charting.utils.PointF
import info.appdev.charting.utils.Utils
import info.appdev.charting.utils.ViewPortHandler
import info.appdev.charting.utils.convertDpToPixel
import info.appdev.charting.utils.drawImage
import timber.log.Timber
import kotlin.math.ceil
import kotlin.math.min
Expand Down Expand Up @@ -136,8 +136,7 @@ open class ScatterChartRenderer(var dataProvider: ScatterDataProvider, animator:
val icon = entry.icon

icon?.let {
Utils.drawImage(
canvas,
canvas.drawImage(
it,
(positions[j] + iconsOffset.x).toInt(),
(positions[j + 1] + iconsOffset.y).toInt()
Expand Down
32 changes: 24 additions & 8 deletions chartLib/src/main/kotlin/info/appdev/charting/utils/CanvasUtils.kt
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Original file line number Diff line number Diff line change
Expand Up @@ -5,6 +5,7 @@ import android.graphics.Paint
import android.graphics.Paint.Align
import android.graphics.Rect
import android.graphics.drawable.Drawable
import info.appdev.charting.utils.PointF.Companion.instance
import info.appdev.charting.utils.Utils.FDEG2RAD
import kotlin.math.abs
import kotlin.math.cos
Expand Down Expand Up @@ -113,14 +114,6 @@ fun Canvas.drawXAxisValue(
paint.textAlign = originalTextAlign
}

/**
* calculates the approximate width of a text, depending on a demo text
* avoid repeated calls (e.g. inside drawing methods)
*/
fun Paint.calcTextWidth(demoText: String?): Int {
return measureText(demoText).toInt()
}

/**
* Returns a recyclable FSize instance.
* Represents size of a rotated rectangle by degrees.
Expand Down Expand Up @@ -150,3 +143,26 @@ fun getSizeOfRotatedRectangleByRadians(rectangleWidth: Float, rectangleHeight: F
abs(rectangleWidth * sin(radians.toDouble()).toFloat()) + abs(rectangleHeight * cos(radians.toDouble()).toFloat())
)
}

fun Canvas.drawImageX(drawable: Drawable, x: Int, y: Int) {
val width = drawable.intrinsicWidth
val height = drawable.intrinsicHeight

val drawOffset = instance
drawOffset.x = x - (width / 2).toFloat()
drawOffset.y = y - (height / 2).toFloat()

drawable.copyBounds(mDrawableBoundsCache)
drawable.setBounds(
mDrawableBoundsCache.left,
mDrawableBoundsCache.top,
mDrawableBoundsCache.left + width,
mDrawableBoundsCache.top + width
)

val saveId = this.save()
// translate to the correct position and draw
translate(drawOffset.x, drawOffset.y)
drawable.draw(this)
restoreToCount(saveId)
}
23 changes: 23 additions & 0 deletions chartLib/src/main/kotlin/info/appdev/charting/utils/ContextUtils.kt
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@@ -0,0 +1,23 @@
package info.appdev.charting.utils

import android.content.Context
import android.os.Build
import android.util.DisplayMetrics
import android.view.ViewConfiguration
import kotlin.Float

var metrics: DisplayMetrics? = null
var minimumFlingVelocity = 0
var maximumFlingVelocity = 0

fun Context.initUtils() {
val viewConfiguration = ViewConfiguration.get(this)
minimumFlingVelocity = viewConfiguration.scaledMinimumFlingVelocity
maximumFlingVelocity = viewConfiguration.scaledMaximumFlingVelocity

metrics = this.resources.displayMetrics
}

fun getSDKInt() = Build.VERSION.SDK_INT

fun Context.convertDpToPixel(dp: Float) = dp * this.resources.displayMetrics.density
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