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PieChart增加Tooltip

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monitor1394
2019-03-20 07:35:32 +08:00
parent 11931e6350
commit 46bef19925
2 changed files with 114 additions and 15 deletions
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103
Scripts/PieChart.cs
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@@ -1,4 +1,5 @@
using System.Collections.Generic;
using System.Text;
using UnityEngine;
using UnityEngine.UI;
@@ -10,6 +11,7 @@ namespace xcharts
public string name;
public float insideRadius = 0f;
public float outsideRadius = 80f;
public float tooltipExtraRadius = 10f;
public bool outsideRadiusDynamic = false;
public float space;
public float left;
@@ -26,6 +28,8 @@ namespace xcharts
private float pieCenterX = 0f;
private float pieCenterY = 0f;
private float pieRadius = 0;
private Vector2 pieCenter;
private List<float> angleList = new List<float>();
protected override void Awake()
{
@@ -45,9 +49,14 @@ namespace xcharts
float startDegree = 0;
float dataTotal = GetDataTotal();
float dataMax = GetDataMax();
angleList.Clear();
for (int i = 0; i < seriesList.Count; i++)
{
if (!legend.IsShowSeries(i)) continue;
if (!legend.IsShowSeries(i))
{
angleList.Add(0);
continue;
}
float value = seriesList[i].dataList[0];
float degree = totalDegree * value / dataTotal;
float toDegree = startDegree + degree;
@@ -55,8 +64,13 @@ namespace xcharts
float outSideRadius = pieInfo.outsideRadiusDynamic ?
pieInfo.insideRadius + (pieRadius - pieInfo.insideRadius) * value / dataMax :
pieRadius;
ChartUtils.DrawDoughnut(vh, new Vector3(pieCenterX, pieCenterY), pieInfo.insideRadius,
if (tooltip.show && tooltip.DataIndex == i + 1)
{
outSideRadius += pieInfo.tooltipExtraRadius;
}
ChartUtils.DrawDoughnut(vh, pieCenter, pieInfo.insideRadius,
outSideRadius, startDegree, toDegree, themeInfo.GetColor(i));
angleList.Add(toDegree);
startDegree = toDegree;
}
}
@@ -114,6 +128,91 @@ namespace xcharts
if (pieInfo.top > 0) pieCenterY = chartHig - pieInfo.top - pieRadius;
if (pieInfo.bottom > 0) pieCenterY = pieInfo.bottom + pieRadius;
}
pieCenter = new Vector2(pieCenterX, pieCenterY);
}
protected override void CheckTootipArea(Vector2 local)
{
float dist = Vector2.Distance(local, pieCenter);
if (dist > pieRadius)
{
tooltip.DataIndex = 0;
RefreshTooltip();
}
else
{
Vector2 dir = local - pieCenter;
float angle = VectorAngle(Vector2.up, dir);
tooltip.DataIndex = 0;
for (int i = angleList.Count - 1; i >= 0; i--)
{
if (i == 0 && angle < angleList[i])
{
tooltip.DataIndex = 1;
break;
}
else if (angle < angleList[i] && angle > angleList[i - 1])
{
tooltip.DataIndex = i + 1;
break;
}
}
}
if (tooltip.DataIndex > 0)
{
tooltip.UpdatePos(new Vector2(local.x + 18, local.y - 25));
RefreshTooltip();
if (tooltip.LastDataIndex != tooltip.DataIndex)
{
RefreshChart();
}
tooltip.LastDataIndex = tooltip.DataIndex;
}
}
float VectorAngle(Vector2 from, Vector2 to)
{
float angle;
Vector3 cross = Vector3.Cross(from, to);
angle = Vector2.Angle(from, to);
angle = cross.z > 0 ? -angle : angle;
angle = (angle + 360) % 360;
return angle;
}
protected override void RefreshTooltip()
{
base.RefreshTooltip();
int index = tooltip.DataIndex - 1;
if (index < 0)
{
tooltip.SetActive(false);
return;
}
tooltip.SetActive(true);
string strColor = ColorUtility.ToHtmlStringRGBA(themeInfo.GetColor(index));
string key = legend.dataList[index];
float value = seriesList[index].dataList[0];
string txt = "";
if (!string.IsNullOrEmpty(pieInfo.name))
{
txt += pieInfo.name + "\n";
}
txt += string.Format("<color=#{0}>● </color>{1}: {2}", strColor, key, value);
tooltip.UpdateTooltipText(txt);
var pos = tooltip.GetPos();
if (pos.x + tooltip.Width > chartWid)
{
pos.x = chartWid - tooltip.Width;
}
if (pos.y - tooltip.Height < 0)
{
pos.y = tooltip.Height;
}
tooltip.UpdatePos(pos);
}
}
}