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https://github.com/XCharts-Team/XCharts.git
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3.0 - unitypackage
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monitor1394
218
Runtime/Component/Legend/LegendHandler.cs
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218
Runtime/Component/Legend/LegendHandler.cs
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using System.Collections.Generic;
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using System.Linq;
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using UnityEngine;
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using UnityEngine.EventSystems;
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using UnityEngine.UI;
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using XUGL;
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namespace XCharts
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{
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[UnityEngine.Scripting.Preserve]
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internal sealed class LegendHandler : MainComponentHandler<Legend>
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{
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private static readonly string s_LegendObjectName = "legend";
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public override void InitComponent()
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{
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InitLegend(component);
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}
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public override void CheckComponent(System.Text.StringBuilder sb)
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{
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var legend = component;
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if (ChartHelper.IsColorAlphaZero(legend.textStyle.color))
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sb.AppendFormat("warning:legend{0}->textStyle->color alpha is 0\n", legend.index);
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var serieNameList = SeriesHelper.GetLegalSerieNameList(chart.series);
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if (serieNameList.Count == 0)
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sb.AppendFormat("warning:legend{0} need serie.serieName or serieData.name not empty\n", legend.index);
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foreach (var category in legend.data)
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{
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if (!serieNameList.Contains(category))
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{
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sb.AppendFormat("warning:legend{0} [{1}] is invalid, must be one of serie.serieName or serieData.name\n",
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legend.index, category);
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}
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}
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}
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public override void DrawTop(VertexHelper vh)
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{
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DrawLegend(vh);
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}
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private void InitLegend(Legend legend)
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{
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legend.painter = null; // legend component does not need to paint
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legend.refreshComponent = delegate ()
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{
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legend.OnChanged();
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var legendObject = ChartHelper.AddObject(s_LegendObjectName + legend.index, chart.transform, chart.chartMinAnchor,
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chart.chartMaxAnchor, chart.chartPivot, chart.chartSizeDelta);
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legend.gameObject = legendObject;
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legendObject.hideFlags = chart.chartHideFlags;
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SeriesHelper.UpdateSerieNameList(chart, ref chart.m_LegendRealShowName);
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List<string> datas;
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if (legend.show && legend.data.Count > 0)
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{
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datas = new List<string>();
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for (int i = 0; i < chart.m_LegendRealShowName.Count; i++)
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{
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if (legend.data.Contains(chart.m_LegendRealShowName[i])) datas.Add(chart.m_LegendRealShowName[i]);
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}
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}
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else
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{
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datas = chart.m_LegendRealShowName;
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}
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int totalLegend = 0;
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for (int i = 0; i < datas.Count; i++)
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{
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if (!SeriesHelper.IsLegalLegendName(datas[i])) continue;
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totalLegend++;
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}
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legend.RemoveButton();
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ChartHelper.HideAllObject(legendObject);
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if (!legend.show) return;
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for (int i = 0; i < datas.Count; i++)
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{
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if (!SeriesHelper.IsLegalLegendName(datas[i])) continue;
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string legendName = legend.GetFormatterContent(datas[i]);
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var readIndex = chart.m_LegendRealShowName.IndexOf(datas[i]);
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var active = chart.IsActiveByLegend(datas[i]);
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var bgColor = LegendHelper.GetIconColor(chart, legend, readIndex, datas[i], active);
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var item = LegendHelper.AddLegendItem(legend, i, datas[i], legendObject.transform, chart.theme,
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legendName, bgColor, active, readIndex);
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legend.SetButton(legendName, item, totalLegend);
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ChartHelper.ClearEventListener(item.button.gameObject);
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ChartHelper.AddEventListener(item.button.gameObject, EventTriggerType.PointerDown, (data) =>
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{
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if (data.selectedObject == null || legend.selectedMode == Legend.SelectedMode.None) return;
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var temp = data.selectedObject.name.Split('_');
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string selectedName = temp[1];
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int clickedIndex = int.Parse(temp[0]);
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if (legend.selectedMode == Legend.SelectedMode.Multiple)
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{
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chart.OnLegendButtonClick(clickedIndex, selectedName, !chart.IsActiveByLegend(selectedName));
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}
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else
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{
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var btnList = legend.context.buttonList.Values.ToArray();
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if (btnList.Length == 1)
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{
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chart.OnLegendButtonClick(0, selectedName, !chart.IsActiveByLegend(selectedName));
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}
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else
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{
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for (int n = 0; n < btnList.Length; n++)
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{
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temp = btnList[n].name.Split('_');
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selectedName = btnList[n].legendName;
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var index = btnList[n].index;
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chart.OnLegendButtonClick(n, selectedName, index == clickedIndex ? true : false);
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}
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}
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}
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});
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ChartHelper.AddEventListener(item.button.gameObject, EventTriggerType.PointerEnter, (data) =>
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{
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if (item.button == null) return;
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var temp = item.button.name.Split('_');
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string selectedName = temp[1];
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int index = int.Parse(temp[0]);
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chart.OnLegendButtonEnter(index, selectedName);
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});
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ChartHelper.AddEventListener(item.button.gameObject, EventTriggerType.PointerExit, (data) =>
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{
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if (item.button == null) return;
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var temp = item.button.name.Split('_');
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string selectedName = temp[1];
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int index = int.Parse(temp[0]);
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chart.OnLegendButtonExit(index, selectedName);
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});
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}
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if (legend.selectedMode == Legend.SelectedMode.Single)
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{
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for (int n = 0; n < chart.m_LegendRealShowName.Count; n++)
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{
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chart.OnLegendButtonClick(n, chart.m_LegendRealShowName[n], n == 0 ? true : false);
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}
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}
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LegendHelper.ResetItemPosition(legend, chart.chartPosition, chart.chartWidth, chart.chartHeight);
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};
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legend.refreshComponent();
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}
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private void DrawLegend(VertexHelper vh)
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{
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if (chart.series.Count == 0) return;
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var legend = component;
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if (!legend.show) return;
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if (legend.iconType == Legend.Type.Custom) return;
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foreach (var kv in legend.context.buttonList)
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{
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var item = kv.Value;
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var rect = item.GetIconRect();
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var radius = Mathf.Min(rect.width, rect.height) / 2;
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var color = item.GetIconColor();
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var iconType = legend.iconType;
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if (legend.iconType == Legend.Type.Auto)
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{
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var serie = chart.GetSerie(item.legendName);
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if (serie != null && serie is Line)
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{
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var sp = new Vector3(rect.center.x - rect.width / 2, rect.center.y);
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var ep = new Vector3(rect.center.x + rect.width / 2, rect.center.y);
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UGL.DrawLine(vh, sp, ep, chart.settings.legendIconLineWidth, color);
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if (!serie.symbol.show) continue;
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switch (serie.symbol.type)
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{
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case SymbolType.None:
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continue;
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case SymbolType.Circle:
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iconType = Legend.Type.Circle;
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break;
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case SymbolType.Diamond:
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iconType = Legend.Type.Diamond;
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break;
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case SymbolType.EmptyCircle:
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iconType = Legend.Type.EmptyCircle;
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break;
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case SymbolType.Rect:
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iconType = Legend.Type.Rect;
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break;
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case SymbolType.Triangle:
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iconType = Legend.Type.Triangle;
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break;
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}
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}
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else
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{
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iconType = Legend.Type.Rect;
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}
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}
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switch (iconType)
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{
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case Legend.Type.Rect:
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var cornerRadius = chart.settings.legendIconCornerRadius;
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UGL.DrawRoundRectangle(vh, rect.center, rect.width, rect.height, color, color,
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0, cornerRadius, false, 0.5f);
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break;
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case Legend.Type.Circle:
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UGL.DrawCricle(vh, rect.center, radius, color);
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break;
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case Legend.Type.Diamond:
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UGL.DrawDiamond(vh, rect.center, radius, color);
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break;
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case Legend.Type.EmptyCircle:
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var backgroundColor = chart.theme.GetBackgroundColor(chart.GetChartComponent<Background>());
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UGL.DrawEmptyCricle(vh, rect.center, radius, 2 * chart.settings.legendIconLineWidth,
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color, color, backgroundColor, 1f);
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break;
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case Legend.Type.Triangle:
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UGL.DrawTriangle(vh, rect.center, 1.2f * radius, color);
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break;
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}
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}
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}
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}
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}
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