CHART-14062 预定义配色都被删光之后的逻辑

designer-chart/src/main/java/com/fr/design/chartx/component/combobox/ColorSchemeComboBox.java

@@ -2,6 +2,8 @@ package com.fr.design.chartx.component.combobox;
 
 import com.fr.base.ChartColorMatching;
 import com.fr.base.ChartPreStyleConfig;
+import com.fr.cert.token.lang.Collections;
+import com.fr.chart.base.ChartConstants;
 import com.fr.design.gui.icombobox.UIComboBox;
 import com.fr.design.gui.icombobox.UIComboBoxRenderer;
 import com.fr.design.i18n.Toolkit;
@@ -60,13 +62,20 @@ public class ColorSchemeComboBox extends UIComboBox {
         //添加默认的方案和第一个方案
         String defaultName = config.getCurrentStyle();
         ChartColorMatching defaultStyle = (ChartColorMatching) config.getPreStyle(defaultName);
-        Object firstName = names.next();
-        ChartColorMatching firstStyle = (ChartColorMatching) config.getPreStyle(firstName);
-        if (defaultStyle == null) {
-            defaultStyle = firstStyle;
+        if (names.hasNext()) {
+            Object firstName = names.next();
+            ChartColorMatching firstStyle = (ChartColorMatching) config.getPreStyle(firstName);
+            if (defaultStyle == null) {
+                defaultStyle = firstStyle;
+            }
+            colorSchemes.put(Toolkit.i18nText("Fine-Design_Report_Default"), colorMatchingToColorInfo(defaultStyle));
+            colorSchemes.put(firstStyle.getId(), colorMatchingToColorInfo(firstStyle));
+        } else {
+            ColorInfo colorInfo = new ColorInfo();
+            colorInfo.setGradient(false);
+            colorInfo.setColors(Collections.arrayToList(ChartConstants.CHART_COLOR_ARRAY));
+            colorSchemes.put(Toolkit.i18nText("Fine-Design_Report_Default"), colorInfo);
         }
-        colorSchemes.put(Toolkit.i18nText("Fine-Design_Report_Default"), colorMatchingToColorInfo(defaultStyle));
-        colorSchemes.put(firstStyle.getId(), colorMatchingToColorInfo(firstStyle));
 
         //添加其他的配色方案
         while (names.hasNext()) {