适配甘特图部件无值显示内容

@CONTROL/甘特图部件/CONTROL-BASE.vue.ftl

 <#ibizinclude>
 ../../@MACRO/LANG_FUN.ftl
 </#ibizinclude>
+<#ibizinclude>
+../@MACRO/CONTROL/LANGBASE.vue.ftl
+</#ibizinclude>
 <template>
 <#if ctrl.render??>
     ${ctrl.render.code}
 <#else>
-  <gantt-elastic :class="ganttClass<#if ctrl.getPSSysCss?? && ctrl.getPSSysCss()??><#assign singleCss = ctrl.getPSSysCss()> ${singleCss.getCssName()}</#if>" :tasks="tasks" :options="getOptions(this.locale)" :dynamic-style="dynamicStyle" @taskList-item-dblclick="taskClick" @task-item-expand="taskItemExpand">
+<div class="app-gantt">
+  <gantt-elastic v-if="tasks.length >0" :class="ganttClass<#if ctrl.getPSSysCss?? && ctrl.getPSSysCss()??><#assign singleCss = ctrl.getPSSysCss()> ${singleCss.getCssName()}</#if>" :tasks="tasks" :options="getOptions(this.locale)" :dynamic-style="dynamicStyle" @taskList-item-dblclick="taskClick" @task-item-expand="taskItemExpand">
   </gantt-elastic>
+  <div v-else class="app-data-empty">{{$t('<#if langbase??>${langbase}.nodata</#if>')}}</div>
+</div>
 </#if>
 </template>
 <#assign import_block>

@CONTROL/甘特图部件/CONTROL.less.ftl

-.gantt {
+.app-gantt{
   height: 100%;
-  .gantt-elastic__main-view-container {
-    flex-grow: 1;
+  .gantt {
+    height: 100%;
+    .gantt-elastic__main-view-container {
+      flex-grow: 1;
+    }
+  }
+  .app-data-empty{
+    height: 100%;
+    margin: 0 auto;
+    display: flex;
+    align-items: center;
+    justify-content: center;
   }
 }
 <#ibizinclude>

APP/src/locale/lanres/entities/%DE_PKGPATH%/%DE_PKGPATH%_en_US.ts.ftl

@@ -27,7 +27,7 @@ export default {
 </#if>
 <#--  实体部件输出  -->
 <#if item.getPSControls()??>
-<#assign ctrltypes = ['FORM', 'GRID','LIST', 'DATAVIEW', 'CHART', 'KANBAN', 'TREEGRIDEX', 'SEARCHFORM', 'TOOLBAR', 'TREEVIEW']>
+<#assign ctrltypes = ['FORM', 'GRID','LIST', 'DATAVIEW', 'CHART', 'KANBAN', 'GANTT', 'TREEGRIDEX', 'SEARCHFORM', 'TOOLBAR', 'TREEVIEW']>
 <#list ctrltypes as ctrltype>
 <#list item.getPSControls() as ctrl>
 <#if ctrl.getControlType() == ctrltype>
@@ -40,7 +40,7 @@ export default {
 			</#list>
 		},
 		</#if>
-		<#if ctrl.getControlType() == 'LIST' || ctrl.getControlType() == 'DATAVIEW' || ctrl.getControlType() == 'CHART'|| ctrl.getControlType() == 'KANBAN' || ctrl.getControlType() == 'TREEGRIDEX'>
+		<#if ctrl.getControlType() == 'LIST' || ctrl.getControlType() == 'DATAVIEW' || ctrl.getControlType() == 'CHART'|| ctrl.getControlType() == 'KANBAN'|| ctrl.getControlType() == 'GANTT' || ctrl.getControlType() == 'TREEGRIDEX'>
 		nodata:"<@getEmptyTextLanguage ctrl langrestype emptyText/>",
 		</#if>
 		<#if ctrl.getControlType() == 'GRID'>

APP/src/locale/lanres/entities/%DE_PKGPATH%/%DE_PKGPATH%_zh_CN.ts.ftl

@@ -26,7 +26,7 @@ export default {
 </#if>
 <#--  实体部件输出  -->
 <#if item.getPSControls()??>
-<#assign ctrltypes = ['FORM', 'GRID', 'LIST', 'DATAVIEW', 'CHART','KANBAN', 'TREEGRIDEX', 'SEARCHFORM', 'TOOLBAR', 'TREEVIEW', 'TREEGRIDEX']>
+<#assign ctrltypes = ['FORM', 'GRID', 'LIST', 'DATAVIEW', 'CHART','KANBAN', 'GANTT', 'TREEGRIDEX', 'SEARCHFORM', 'TOOLBAR', 'TREEVIEW', 'TREEGRIDEX']>
 <#list ctrltypes as ctrltype>
 <#list item.getPSControls() as ctrl>
 <#if ctrl.getControlType() == ctrltype>
@@ -39,7 +39,7 @@ export default {
 			</#list>
 		},
 		</#if>
-		<#if ctrl.getControlType() == 'LIST' || ctrl.getControlType() == 'DATAVIEW' || ctrl.getControlType() == 'CHART' || ctrl.getControlType() == 'KANBAN' || ctrl.getControlType() == 'TREEGRIDEX'>
+		<#if ctrl.getControlType() == 'LIST' || ctrl.getControlType() == 'DATAVIEW' || ctrl.getControlType() == 'CHART' || ctrl.getControlType() == 'KANBAN'|| ctrl.getControlType() == 'GANTT' || ctrl.getControlType() == 'TREEGRIDEX'>
 		nodata:"<@getEmptyTextLanguage ctrl langrestype emptyText/>",
 		</#if>
 		<#if ctrl.getControlType() == 'GRID'>