Pull request #2741: CHART-16369 甘特图数据点条件属性

Merge in DESIGN/design from ~BJORN/design:release/10.0 to release/10.0

* commit 'd1c3efd6a32f8d25880ef3019df2754cf0c9dbbd':
  CHART-16369 甘特图数据点条件属性

designer-chart/src/main/java/com/fr/van/chart/gantt/designer/other/VanChartGanttConditionPane.java

@@ -19,6 +19,7 @@ import com.fr.van.chart.designer.style.tooltip.VanChartPlotTooltipNoCheckPane;
 import com.fr.van.chart.designer.style.tooltip.VanChartPlotTooltipPane;
 import com.fr.van.chart.gantt.designer.style.label.VanChartGanttLabelConditionPane;
 
+import javax.swing.JPanel;
 import java.awt.Dimension;
 
 /**
@@ -55,6 +56,11 @@ public class VanChartGanttConditionPane extends DataSeriesConditionPane {
                         ((AttrGanttTooltipContent) attrGanttTooltip.getContent()).getDurationFormat().setEnable(true);
                         return attrGanttTooltip;
                     }
+
+                    @Override
+                    protected JPanel createDisplayStrategy(Plot plot) {
+                        return null;
+                    }
                 };
 
             }