JavaFX组件扩展 TableView
Form、Table组件是lrEAP中UI模式化开发重要的基础组件。所以我们在开发过程中投入了相当的精力及关注，力求好用、美观、完善。但JavaFX经过这么多年的发展，虽然看上去基础组件比较齐全了，但是在细节方面，还是存在明显的不足，特别是在企业级应用对基础组件的要求方面。例如，Table组件开发过程中使用TableView所遇到的问题：
- 在双击单元格进行编辑时，JavaFX采用在当前单元格中建立TextField替换Label的方式实现单元格的编辑功能，默认情况下会导致当前单元格的行高产生变化。这种非常不友好的行为表现在如此基础并且重要的组件中，让我们感觉无法理解并且难以容忍。
- TableCell对扩展类型的支持不到位。默认情况下只支持一些简单类型(如字符、数字等)的直接录入，没有提供对字体、颜色、参照等弹出单元格较好的处理方式。
- TableCell的Commit机制比较古怪。对于一般的TableCell来说，必须在当前单元格中进行“回车”之后，对当前单元的修改才会被真正提交。但是我们操作人员一般的习惯，是点击单元格，输入或选择内容，然后点击（或是按Tab键）另一个需要编辑单元格——特别是处理参照类型的单元格时。但是非常不幸，TableView默认情况下进行上述操作时，会回滚对当前单元格所做的变更。
基于JavaFX TableView扩展生成新的组件，主要演示解决以下问题：
-
无数据时，不绘制表格线。通过CSS实现。
-
增加“行号”列。
-
通过自定义的TextFieldTableCell，解决TableCell失去焦点时自动CancelEdit的问题。
-
实现自适应列宽
package com.lirong.eap.test.site.j1004;
import com.lirong.eap.platform.base.client.utils.MessageDialogUtil;
import com.lirong.eap.platform.base.client.utils.Metadata2TableColumnUtil;
import com.lirong.eap.platform.client.javafx.control.pane.MasterDetailPane;
import com.lirong.eap.platform.client.javafx.control.view.LRTableView;
import com.lirong.eap.test.site.j1004.utils.DataUtils;
import com.lirong.eap.test.site.j1004.vo.TestFXVO;
import javafx.application.Application;
import javafx.collections.ObservableList;
import javafx.geometry.Insets;
import javafx.geometry.Side;
import javafx.scene.Scene;
import javafx.scene.control.Button;
import javafx.scene.control.TextArea;
import javafx.scene.layout.BorderPane;
import javafx.scene.layout.HBox;
import javafx.stage.Stage;
import static com.lirong.eap.platform.base.pub.utils.ValueObjectUtils.LINE_SEP;
/**
* <p>Title: LiRong Java Enterprise Application Platform</p>
* <p>Description: TestVO在LRTableView中显示、编辑。用于演示LRTableView对TestVO中各位数据类型的支持。 </p>
* Copyright: CorpRights lrJAP.com<br>
* Company: lrJAP.com<br>
*
* @author jianjun.yu
* @version 3.0.0-SNAPSHOT
* @date 2022-05-20
* @since 1.0.0-SNAPSHOT
*/
public class HelloLRTableView extends Application {
public static void main(String[] args) {
launch(args);
}
@Override
public void start(Stage primaryStage) throws Exception {
LRTableView tableView = new LRTableView();
tableView.setEditable(true);
tableView.setShowRowNumberColumn(true);
// create column metadata with PropertyVO
tableView.getColumns().addAll(Metadata2TableColumnUtil.createTableColumnsByMetadata(DataUtils.createPropertyItem()));
// must after add columns
tableView.setShowMultiSelectColumn(true);
TextArea textConsole = new TextArea();
textConsole.setPrefHeight(360);
Button buttonLoadData = new Button("LoadData");
buttonLoadData.setPrefSize(75, 30);
// load data
buttonLoadData.setOnAction(action -> tableView.getItems().setAll(DataUtils.createDataList(100)));
Button buttonPrintSelected = new Button("PrintSelected");
buttonPrintSelected.setPrefSize(120, 30);
// print data
buttonPrintSelected.setOnAction(action -> {
textConsole.clear();
ObservableList<TestFXVO> listSelected = tableView.getSelectionModel().getSelectedItems();
if (listSelected.isEmpty()) {
MessageDialogUtil.showMessage("You selected nothing.");
} else {
for (TestFXVO testFXVO : listSelected) {
textConsole.appendText(testFXVO.toString());
textConsole.appendText(LINE_SEP);
}
}
});
HBox toolbar = new HBox();
toolbar.setPadding(new Insets(10));
toolbar.setSpacing(10);
toolbar.getChildren().addAll(buttonLoadData, buttonPrintSelected);
MasterDetailPane masterDetailPane = new MasterDetailPane(Side.BOTTOM);
masterDetailPane.setDividerPosition(0.7);
masterDetailPane.setMasterNode(tableView);
masterDetailPane.setDetailNode(textConsole);
BorderPane container = new BorderPane();
container.setTop(toolbar);
container.setCenter(masterDetailPane);
Scene scene = new Scene(container, 1024, 768);
primaryStage.setTitle("LRTableView Test");
primaryStage.setScene(scene);
primaryStage.show();
}
}
package com.lirong.eap.test.site.j1004.utils;
import com.lirong.eap.platform.base.pub.vo.PDMDomainConstant;
import com.lirong.eap.platform.metadata.pub.enumtype.CodeNameFieldFlagEnum;
import com.lirong.eap.platform.metadata.pub.vo.PropertyVO;
import com.lirong.eap.platform.metadata.pub.vo.reference.DisplayCategoryReferenceVO;
import com.lirong.eap.test.site.j1004.vo.TestFXVO;
import com.lirong.eap.test.site.j1004.vo.TestVO;
import javafx.collections.FXCollections;
import javafx.collections.ObservableList;
import java.util.ArrayList;
import java.util.List;
/**
* <p>Title: LiRong Java Enterprise Application Platform</p>
* <p>Description: </p>
* Copyright: CorpRights lrJAP.com<br>
* Company: lrJAP.com<br>
*
* @author jianjun.yu
* @version 3.0.0-SNAPSHOT
* @date 2022-05-20
* @since 1.0.0-SNAPSHOT
*/
public final class DataUtils {
private DataUtils() {
}
public static ObservableList<TestFXVO> createDataList(int count) {
ObservableList<TestFXVO> list = FXCollections.observableArrayList();
for (int i = 0; i < count; i++) {
TestFXVO fxVO = new TestFXVO(new TestVO(i + 1));
list.add(fxVO);
}
return list;
}
/**
* 手工创建属性元数据信息
*/
public static List<PropertyVO> createPropertyItem() {
// FormView Show Group: Normal
DisplayCategoryReferenceVO normal = new DisplayCategoryReferenceVO("1", "Normal", "常规");
// FormView Show Group: Audit
DisplayCategoryReferenceVO audit = new DisplayCategoryReferenceVO("2", "Audit", "审计");
List<PropertyVO> list = new ArrayList<>();
PropertyVO testCodeProperty = new PropertyVO();
testCodeProperty.setPropertyCode("testCode");
testCodeProperty.setPropertyName("Code");
testCodeProperty.setPrimaryKeyFlag(true);
testCodeProperty.setPdmDomain(PDMDomainConstant.CODE32_TYPE_DOMAIN);
testCodeProperty.setCodeNameFieldFlag(CodeNameFieldFlagEnum.CODE_FIELD);
testCodeProperty.setOrderNumber(1);
testCodeProperty.setJavaDataType("java.lang.String");
testCodeProperty.setJavaShortDataType("String");
testCodeProperty.setDbDataType("VARCHAR");
testCodeProperty.setMaxLength(32);
testCodeProperty.setNullAllowFlag(false);
testCodeProperty.setEditableFlag(true);
testCodeProperty.setSortAble(true);
testCodeProperty.setAutoresizeColumn(true);
testCodeProperty.setFormShowFlag(true);
testCodeProperty.setPkDisplayCategory(normal);
list.add(testCodeProperty);
PropertyVO testNameProperty = new PropertyVO();
testNameProperty.setPropertyCode("testName");
testNameProperty.setPropertyName("Name");
testNameProperty.setPdmDomain(PDMDomainConstant.NAME32_TYPE_DOMAIN);
testNameProperty.setCodeNameFieldFlag(CodeNameFieldFlagEnum.NAME_FIELD);
testNameProperty.setOrderNumber(2);
testNameProperty.setJavaDataType("java.lang.String");
testNameProperty.setJavaShortDataType("String");
testNameProperty.setDbDataType("VARCHAR");
testNameProperty.setMaxLength(100);
testNameProperty.setNullAllowFlag(false);
testNameProperty.setEditableFlag(true);
testNameProperty.setSortAble(true);
testNameProperty.setAutoresizeColumn(true);
testNameProperty.setFormShowFlag(true);
testNameProperty.setPkDisplayCategory(normal);
list.add(testNameProperty);
PropertyVO testByteProperty = new PropertyVO();
testByteProperty.setPropertyCode("testByte");
testByteProperty.setPropertyName("Byte");
testByteProperty.setOrderNumber(3);
testByteProperty.setJavaDataType("java.lang.Byte");
testByteProperty.setJavaShortDataType("Byte");
testByteProperty.setDbDataType("DECIMAL");
testByteProperty.setMaxLength(160);
testByteProperty.setNullAllowFlag(false);
testByteProperty.setEditableFlag(true);
testByteProperty.setSortAble(true);
testByteProperty.setAutoresizeColumn(true);
testByteProperty.setFormShowFlag(true);
testByteProperty.setPkDisplayCategory(normal);
list.add(testByteProperty);
PropertyVO testShortProperty = new PropertyVO();
testShortProperty.setPropertyCode("testShort");
testShortProperty.setPropertyName("Short");
testShortProperty.setOrderNumber(4);
testShortProperty.setJavaDataType("java.lang.Short");
testShortProperty.setJavaShortDataType("Short");
testShortProperty.setDbDataType("DECIMAL");
testShortProperty.setMaxLength(160);
testShortProperty.setNullAllowFlag(false);
testShortProperty.setEditableFlag(true);
testShortProperty.setSortAble(true);
testShortProperty.setAutoresizeColumn(true);
testShortProperty.setFormShowFlag(true);
testShortProperty.setPkDisplayCategory(normal);
list.add(testShortProperty);
PropertyVO testLongProperty = new PropertyVO();
testLongProperty.setPropertyCode("testLong");
testLongProperty.setPropertyName("Long");
testLongProperty.setOrderNumber(5);
testLongProperty.setJavaDataType("java.lang.Long");
testLongProperty.setJavaShortDataType("Long");
testLongProperty.setDbDataType("DECIMAL");
testLongProperty.setMaxLength(160);
testLongProperty.setNullAllowFlag(false);
testLongProperty.setEditableFlag(true);
testLongProperty.setSortAble(true);
testLongProperty.setAutoresizeColumn(true);
testLongProperty.setFormShowFlag(true);
testLongProperty.setPkDisplayCategory(normal);
list.add(testLongProperty);
PropertyVO testAgeProperty = new PropertyVO();
testAgeProperty.setPropertyCode("testInteger");
testAgeProperty.setPropertyName("Integer");
testAgeProperty.setOrderNumber(6);
testAgeProperty.setJavaDataType("java.lang.Integer");
testAgeProperty.setJavaShortDataType("Integer");
testAgeProperty.setDbDataType("INT");
testAgeProperty.setMaxLength(100);
testAgeProperty.setNullAllowFlag(false);
testAgeProperty.setEditableFlag(true);
testAgeProperty.setSortAble(true);
testAgeProperty.setAutoresizeColumn(true);
testAgeProperty.setFormShowFlag(true);
testAgeProperty.setPkDisplayCategory(normal);
list.add(testAgeProperty);
PropertyVO testSalaryProperty = new PropertyVO();
testSalaryProperty.setPropertyCode("testDecimal");
testSalaryProperty.setPropertyName("Decimal");
testSalaryProperty.setOrderNumber(7);
testSalaryProperty.setJavaDataType("java.math.BigDecimal");
testSalaryProperty.setJavaShortDataType("BigDecimal");
testSalaryProperty.setPrecise(2);
testSalaryProperty.setDbDataType("DECIMAL");
testSalaryProperty.setMaxLength(100);
testSalaryProperty.setNullAllowFlag(false);
testSalaryProperty.setEditableFlag(true);
testSalaryProperty.setSortAble(true);
testSalaryProperty.setAutoresizeColumn(true);
testSalaryProperty.setFormShowFlag(true);
testSalaryProperty.setPkDisplayCategory(normal);
list.add(testSalaryProperty);
PropertyVO testBooleanProperty = new PropertyVO();
testBooleanProperty.setPropertyCode("testBoolean");
testBooleanProperty.setPropertyName("Boolean");
testBooleanProperty.setOrderNumber(8);
testBooleanProperty.setJavaDataType("java.lang.Boolean");
testBooleanProperty.setJavaShortDataType("Boolean");
testBooleanProperty.setDbDataType("VARCHAR");
testBooleanProperty.setMaxLength(100);
testBooleanProperty.setNullAllowFlag(false);
testBooleanProperty.setEditableFlag(true);
testBooleanProperty.setSortAble(true);
testBooleanProperty.setAutoresizeColumn(true);
testBooleanProperty.setFormShowFlag(true);
testBooleanProperty.setPkDisplayCategory(normal);
list.add(testBooleanProperty);
PropertyVO testBirthdayProperty = new PropertyVO();
testBirthdayProperty.setPropertyCode("testDate");
testBirthdayProperty.setPropertyName("Date");
testBirthdayProperty.setOrderNumber(9);
testBirthdayProperty.setJavaDataType("java.time.LocalDate");
testBirthdayProperty.setJavaShortDataType("LocalDate");
testBirthdayProperty.setDbDataType("VARCHAR");
testBirthdayProperty.setMaxLength(160);
testBirthdayProperty.setNullAllowFlag(false);
testBirthdayProperty.setEditableFlag(true);
testBirthdayProperty.setSortAble(true);
testBirthdayProperty.setAutoresizeColumn(true);
testBirthdayProperty.setFormShowFlag(true);
testBirthdayProperty.setPkDisplayCategory(audit);
list.add(testBirthdayProperty);
PropertyVO testTimeProperty = new PropertyVO();
testTimeProperty.setPropertyCode("testTime");
testTimeProperty.setPropertyName("Time");
testTimeProperty.setOrderNumber(10);
testTimeProperty.setJavaDataType("java.time.LocalTime");
testTimeProperty.setJavaShortDataType("LocalTime");
testTimeProperty.setDbDataType("VARCHAR");
testTimeProperty.setMaxLength(160);
testTimeProperty.setNullAllowFlag(false);
testTimeProperty.setEditableFlag(true);
testTimeProperty.setSortAble(true);
testTimeProperty.setAutoresizeColumn(true);
testTimeProperty.setFormShowFlag(true);
testTimeProperty.setPkDisplayCategory(audit);
list.add(testTimeProperty);
PropertyVO testDataTimeProperty = new PropertyVO();
testDataTimeProperty.setPropertyCode("testDateTime");
testDataTimeProperty.setPropertyName("DateTime");
testDataTimeProperty.setOrderNumber(11);
testDataTimeProperty.setJavaDataType("java.time.LocalDateTime");
testDataTimeProperty.setJavaShortDataType("LocalDateTime");
testDataTimeProperty.setDbDataType("VARCHAR");
testDataTimeProperty.setMaxLength(160);
testDataTimeProperty.setNullAllowFlag(false);
testDataTimeProperty.setEditableFlag(true);
testDataTimeProperty.setSortAble(true);
testDataTimeProperty.setAutoresizeColumn(true);
testDataTimeProperty.setFormShowFlag(true);
testDataTimeProperty.setPkDisplayCategory(audit);
list.add(testDataTimeProperty);
PropertyVO testDataStatusProperty = new PropertyVO();
testDataStatusProperty.setPropertyCode("valueObjectStatus");
testDataStatusProperty.setPropertyName("Enum");
testDataStatusProperty.setOrderNumber(12);
testDataStatusProperty.setPdmDomain(PDMDomainConstant.ENUM_TYPE_DOMAIN);
testDataStatusProperty.setJavaDataType("com.lirong.eap.platform.base.pub.enumtype.DataStatusEnum");
testDataStatusProperty.setJavaShortDataType("DataStatusEnum");
testDataStatusProperty.setDbDataType("VARCHAR");
testDataStatusProperty.setMaxLength(160);
testDataStatusProperty.setNullAllowFlag(false);
testDataStatusProperty.setEditableFlag(true);
testDataStatusProperty.setSortAble(true);
testDataStatusProperty.setAutoresizeColumn(true);
testDataStatusProperty.setEnumFlag(true);
testDataStatusProperty.setFormShowFlag(true);
testDataStatusProperty.setPkDisplayCategory(audit);
list.add(testDataStatusProperty);
PropertyVO testUserReferenceProperty = new PropertyVO();
testUserReferenceProperty.setPropertyCode("pkUser");
testUserReferenceProperty.setPropertyName("Reference");
testUserReferenceProperty.setOrderNumber(13);
testUserReferenceProperty.setPdmDomain(PDMDomainConstant.ENUM_TYPE_DOMAIN);
testUserReferenceProperty.setJavaDataType("com.lirong.eap.platform.sm.pub.vo.reference.UserReferenceVO");
testUserReferenceProperty.setJavaShortDataType("UserReferenceVO");
testUserReferenceProperty.setDbDataType("VARCHAR");
testUserReferenceProperty.setMaxLength(160);
testUserReferenceProperty.setNullAllowFlag(false);
testUserReferenceProperty.setEditableFlag(true);
testUserReferenceProperty.setSortAble(true);
testUserReferenceProperty.setAutoresizeColumn(true);
testUserReferenceProperty.setReferenceFlag(true);
testUserReferenceProperty.setFormShowFlag(true);
testUserReferenceProperty.setPkDisplayCategory(audit);
list.add(testUserReferenceProperty);
return list;
}
}