javafx_mytabpane

1、yunhaifeiwu1 JavaFx自之義控件之tabpane官方自有的tabpane不錯，但是TabPane的頭的右邊，設(shè)置一下功能按鈕，就很難實現(xiàn)了；又是為了展現(xiàn)如保用官方的GUI組件，實現(xiàn)自義控件，故有該控件設(shè)計。 這控件僅僅是簡單粗暴的測試，對于想要用于生產(chǎn)要謹慎。PS:tab的關(guān)閉圖標并沒有實現(xiàn)。實現(xiàn)后的測試界面如下：1.1 思路利用官方的ToggleGroup組件，該組件完成的功能是 可以在一組按鈕中進行選擇，可以減化難度。同時提供一組存儲tab的數(shù)組， 再提供一個stackPane，展現(xiàn)當前選中的tab. 當按下一個按鈕時，自動把該按鈕對應(yīng)的tab 送入stackPane中展現(xiàn)

2、出來，從而實現(xiàn)tabpane基本功能。本組件實現(xiàn)中，也展示了 javaFX 的CSS使用。1.2 FtabPane.java所寫的TabPane 僅有一個類。具體源代碼如下：package basetech.better;import java.util.ArrayList;import java.util.HashMap;import java.util.List;import java.util.Map;import java.util.logging.Logger;import perty.SimpleIntegerProperty;import java

3、fx.beans.value.ObservableValue;import javafx.geometry.HPos;import javafx.geometry.Pos;import javafx.scene.Node;import javafx.scene.control.Button;import javafx.scene.control.ScrollPane;import javafx.scene.control.Toggle;import javafx.scene.control.ToggleButton;import javafx.scene.control.ToggleGroup

4、;import javafx.scene.layout.AnchorPane;import javafx.scene.layout.BorderPane;import javafx.scene.layout.ColumnConstraints;import javafx.scene.layout.GridPane;import javafx.scene.layout.HBox;import javafx.scene.layout.StackPane;import javafx.scene.shape.Polygon;/* * * author yunhaifeiwu */public clas

5、s FTabPane extends BorderPane private static final Logger LOG = Logger.getLogger(FTabPane.class.getName(); private final String USER_DATA="fyh_userData" private final ToggleGroup group = new ToggleGroup(); private final List<Node> tabs=new ArrayList(); private final List<ToggleBut

6、ton> buttons=new ArrayList(); private final HBox lbox=new HBox(); private final HBox rbox=new HBox(); private final GridPane top=new GridPane(); private StackPane centerPane; private Node current; private int currentIndex; public SimpleIntegerProperty currentIndexProperty=new SimpleIntegerPropert

7、y() ; ScrollPane sp=new ScrollPane(); ColumnConstraints column1; ColumnConstraints column2; public FTabPane() super(); top.getStyleClass().add("ftabpane-toolbar"); rbox.setAlignment(Pos.CENTER_RIGHT); Button bt=new Button(); bt.heightProperty().addListener(obj,old,new1)-> int h=(Double)

8、new1).intValue(); if (h<=0 | bt.getGraphic()!=null)return; h=h/2; Polygon polygon1 = getLeftTrigon(h); bt.setGraphic(polygon1); ); bt.getStyleClass().add("ftabpane-button"); bt.setOnAction(e-> if (current=null) return; if (currentIndex>0) setSelectedTab(currentIndex-1); ); Button

9、bt1=new Button(); bt1.heightProperty().addListener(obj,old,new1)-> int h=(Double)new1).intValue(); if (h<=0 | bt1.getGraphic()!=null)return; h=h/2; Polygon polygon1 = getRightTrigon(h); bt1.setGraphic(polygon1); ); bt1.getStyleClass().add("ftabpane-button"); bt1.setOnAction(e-> if

10、 (current=null) return; if (currentIndex>-1 && currentIndex<buttons.size()-1) setSelectedTab(currentIndex+1); ); rbox.setSpacing(2); rbox.getChildren().addAll(bt,bt1); sp.setVbarPolicy(ScrollPane.ScrollBarPolicy.NEVER); sp.setFitToHeight(true); sp.setContent(lbox); sp.getStyleClass().c

11、lear(); sp.getStyleClass().add("ftabpane-toolbar"); lbox.setAlignment(Pos.BOTTOM_LEFT); lbox.setSpacing(2); top.add(sp, 0, 0); AnchorPane rboxa=new AnchorPane(); rboxa.getChildren().add(rbox); AnchorPane.setRightAnchor(rbox, 0.0); AnchorPane.setBottomAnchor(rbox, 0.0); top.add(rboxa, 1, 0)

12、; column1 = new ColumnConstraints(); column1.setHalignment(HPos.RIGHT); column2 = new ColumnConstraints(); column2.setHalignment(HPos.RIGHT); top.getColumnConstraints().addAll(column1, column2); top.widthProperty().addListener(obj,old,new1)-> Double w=(Double) rboxa.getWidth(); w=(w=0)?(100.0):w;

13、 column1.setPrefWidth(top.getWidth()-w); column2.setPrefWidth(w); ); setTop(top); centerPane=new StackPane(); centerPane.getStyleClass().clear(); centerPane.getStyleClass().add("ftabpane-center"); this.setCenter(centerPane); group.selectedToggleProperty().addListener(ObservableValue<? e

14、xtends Toggle> observable, Toggle oldValue, Toggle select) -> if (select = null) return; Node node=(Node) (Map<String,Object>)select.getUserData().get(USER_DATA); if (node=null) LOG.warning("所選擇的tab 出現(xiàn)異常，請開發(fā)人員檢查其userData設(shè)定值"); return; int pos=buttons.indexOf(select)+1; currentI

15、ndexProperty.set(pos-1); sp.setHvalue(Double.valueOf(pos)/Double.valueOf(buttons.size(); Node tab=tabs.get(pos-1); current =tab; currentIndex=pos-1; centerPane.getChildren().clear(); centerPane.getChildren().add(tab); ); public Node getSelectedTab() return current; public static Polygon getLeftTrigo

16、n(int h) Polygon polygon1 = new Polygon(new double 0, h/2, h*0.6, 0, h*0.6, h ); polygon1.getStyleClass().add("left-trigon"); return polygon1; public static Polygon getRightTrigon(int h) Polygon polygon1 = new Polygon(new double 0, 0, 0, h, h*0.6,h/2 ); polygon1.getStyleClass().add("r

17、ight-trigon"); return polygon1; public void setSelectedTab(int index) if (index<0 | index>=buttons.size() return; ToggleButton bt=buttons.get(index); if (bt=null) return; group.selectToggle(bt); current=tabs.get(index); currentIndex=index; currentIndexProperty.set(index); sp.setHvalue(Dou

18、ble.valueOf(index)/Double.valueOf(buttons.size(); Node tab=tabs.get(index); centerPane.getChildren().clear(); centerPane.getChildren().add(current); public void setSelectedTab(Node node) if (node=null) return; int index=tabs.indexOf(node); setSelectedTab(index); /* * * param title tab有頭標題 * param ic

19、on tab頭的圖標 * param nodeTab tab內(nèi)容 */ public void addTab(String title,Node icon ,Node nodeTab) if (nodeTab=null) return; tabs.add(nodeTab); Map<String,Object> map=new HashMap(); map.put(USER_DATA, nodeTab); nodeTab.getStyleClass().add("ftabpane-font"); ToggleButton bt=title=null?new To

20、ggleButton():new ToggleButton(title); bt.setGraphic(icon); bt.setUserData(map); bt.setToggleGroup(group); bt.getStyleClass().clear(); bt.getStyleClass().add("ftabpane-button"); lbox.getChildren().add(bt); buttons.add(bt); setSelectedTab(nodeTab); public void addTab( Node icon ,Node nodeTab

21、) addTab("",icon,nodeTab); public void addTab( String title ,Node nodeTab) addTab(title,null,nodeTab); public void addTab( Node nodeTab) addTab("",null,nodeTab); public void removeTab(Node node ) if(node=null) return; int index=tabs.indexOf(node); ToggleButton bt=buttons.get(inde

22、x); int size=buttons.size(); group.getToggles().remove(bt); buttons.remove(bt); tabs.remove(node); lbox.getChildren().remove(bt); if(index>0) index=index-1; else if (index<0 )&& size>0 ) index=index+1; if(buttons.size()=0) centerPane.getChildren().clear(); group.getToggles().clear()

23、; else if(index>=0 && index<buttons.size() bt=buttons.get(index); node=tabs.get(index); setSelectedTab( node); public Node getCurrent() return current; public int getCurrentIndex() return currentIndex; public ToggleGroup getGroup() return group; public HBox getTopLeft() return lbox; pu

24、blic HBox getTopRight() return rbox; 1.3 FtabPaneTest.css這是TabPane所要使用到的css文件樣式。Ftabpane開頭的都是 tabPane所要用到的。完整文件如下：.root -fx-background-color: linear-gradient(#B0D1D8, #F1EAF5,#AACCD5);.ftabpane-center -fx-background-color: linear-gradient(#B0D1D8, #F1EAF5,#AACCD5); .ftabpane-font -fx-font-size: 46px

25、; -fx-text-fill: black; -fx-font-family: "Serif" -fx-font-weight: bold; .ftabpane-button -fx-background-color: linear-gradient(#9CC5CE,#75B1BD,#94C2CC); -fx-text-fill: black; -fx-font-size:13px; -fx-padding:5;.ftabpane-button:hover /* -fx-stroke: #F1EAF5;*/ -fx-background-color: #FEF7F1; -

26、fx-border-color: #75B1BD; -fx-border-insets: 1 1 1 1; -fx-border-style:solid; -fx-text-fill: #0F6143;.ftabpane-button:selected -fx-background-color: #FEF7F1; -fx-border-color: #75B1BD; /*-fx-border-insets: 1 1 1 1;*/ -fx-border-style:solid; -fx-text-fill: red;.ftabpane-toolbar -fx-background-color:

27、linear-gradient( #4D8F9D,#305B64,#569FAE); .left-trigon -fx-fill: red;.right-trigon -fx-fill: red;1.4 測試文件測試文件運行的效果圖如下：源代碼如下：package basetech.better;import javafx.application.Application;import javafx.scene.Scene;import javafx.scene.control.Button;import javafx.scene.control.Label;import javafx.scen

28、e.layout.BorderPane;import javafx.scene.layout.HBox;import javafx.stage.Stage;public class FTabPaneTest1 extends Application int i=0; Override public void start(Stage primaryStage) throws Exception BorderPane bp=new BorderPane(); FTabPane tabpane=new FTabPane();/ tabpane.getTopRight().getChildren().clear();/ tabpane.getTo