javaFx Pdf 阅读器

/* * To change this template, choose Tools | Templates * and open the template in the editor. */ package com.hj.pdfReader; import java.io.File; import java.util.Hashtable; import java.util.logging.Level; import java.util.logging.Logger; import javafx.application.Application; import javafx.beans.InvalidationListener; import javafx.beans.Observable; import javafx.beans.value.ChangeListener; import javafx.beans.value.ObservableValue; import javafx.collections.FXCollections; import javafx.collections.ListChangeListener; import javafx.collections.ListChangeListener.Change; import javafx.collections.ObservableList; import javafx.event.ActionEvent; import javafx.event.Event; import javafx.event.EventHandler; import javafx.geometry.Insets; import javafx.geometry.Pos; import javafx.scene.Group; import javafx.scene.Node; import javafx.scene.Scene; import javafx.scene.control.Button; import javafx.scene.control.ContextMenu; import javafx.scene.control.FocusModel; import javafx.scene.control.Label; import javafx.scene.control.MenuItem; import javafx.scene.control.ScrollPane; import javafx.scene.control.SelectionMode; import javafx.scene.control.SplitPane; import javafx.scene.control.TextField; import javafx.scene.control.ToolBar; import javafx.scene.control.TreeCell; import javafx.scene.control.TreeItem; import javafx.scene.control.TreeView; import javafx.scene.image.ImageView; import javafx.scene.input.KeyCode; import javafx.scene.input.KeyEvent; import javafx.scene.layout.BorderPane; import javafx.scene.layout.HBox; import javafx.scene.layout.StackPane; import javafx.scene.text.Text; import javafx.stage.FileChooser; import javafx.stage.Stage; import javafx.stage.StageStyle; import javafx.stage.WindowEvent; import javafx.util.Callback; import org.icepdf.core.pobjects.Destination; import org.icepdf.core.pobjects.Document; import org.icepdf.core.pobjects.OutlineItem; import org.icepdf.core.pobjects.Outlines; import org.icepdf.core.pobjects.Page; import org.icepdf.core.pobjects.PageTree; import org.icepdf.core.pobjects.actions.Action; import org.icepdf.core.pobjects.actions.GoToAction; import org.icepdf.core.util.GraphicsRenderingHints; import org.icepdf.core.util.Library; /** * * @author jiu */ public class PdfReader extends Application { private Stage primaryStage ; private BorderPane borderPane; private SplitPane splitPane; private ToolBar toolBar; private StackPane treePane; private HBox viewPane; private ScrollPane viewScrollPane; private double[] dividerPositions = {0.2f, 0.9f}; private Document document; private PageTree pageTree; private ImageView imageView; private TextField curPageText; private TreeView treeView; private Button btnFirst , btnPrev , btnNetx , btnLast , btnOutline ; private Label totalPageLabel ; private boolean showDemo = true ; private String demoFilePath = "E:\\资料\\阎宏-Java与模式.pdf"; @Override public void start(Stage primaryStage) { initToolBar(); treeView = new TreeView(); treePane = new StackPane(); treePane.setMinWidth(180); treePane.getChildren().add(treeView); imageView = new ImageView(); imageView.autosize(); imageView.setStyle("-fx-width:100%;-fx-height:100%"); imageView.setSmooth( true ); imageView.setPreserveRatio(true); viewPane = new HBox(); //viewPane.setPadding(new Insets(6,12,6,12)); viewPane.setAlignment( Pos.CENTER ); viewPane.getChildren().add( imageView ); viewPane.setStyle("-fx-border-width:1;-fx-width:100%;-fx-height:100%;"); viewScrollPane = new ScrollPane(); viewScrollPane.autosize(); viewScrollPane.setStyle("-fx-background-color:#808080;"); viewScrollPane.setContent( viewPane ); viewScrollPane.setFitToWidth(true); viewScrollPane.setFitToHeight(true); splitPane = new SplitPane(); splitPane.getItems().addAll(treePane, viewScrollPane); splitPane.setDividerPositions(dividerPositions); borderPane = new BorderPane(); borderPane.setTop(toolBar); borderPane.setCenter(splitPane); Scene scene = new Scene(borderPane, 821, 600); this.primaryStage = primaryStage ; this.primaryStage.setResizable(false); primaryStage.setTitle("JavaFX Pdf 阅读器"); primaryStage.setScene(scene); primaryStage.show(); primaryStage.setOnCloseRequest( new EventHandler<WindowEvent>() { @Override public void handle(WindowEvent event) { destory(); } }); if( showDemo ){ loadPdfDocument( demoFilePath ); } } /** * 初始化工具栏 */ private void initToolBar() { toolBar = new ToolBar(); //打开本地文件 Button btnOpen = new Button("打开"); btnOpen.setOnAction(new EventHandler<ActionEvent>() { @Override public void handle(ActionEvent event) { FileChooser fc = new FileChooser(); fc.setTitle("选择PDF文档"); fc.getExtensionFilters().add(new FileChooser.ExtensionFilter("PDF文档", "*.pdf")); File file = fc.showOpenDialog( primaryStage.getOwner()); if( file != null && file.exists() ){ loadPdfDocument( file.getAbsolutePath() ); } } }); //回到首页 btnFirst = new Button("<<"); btnFirst.setOnAction(new EventHandler<ActionEvent>() { @Override public void handle(ActionEvent event) { showPage( 0 ); } }); btnFirst.setVisible(false); //上一页 btnPrev = new Button("<"); btnPrev.setOnAction(new EventHandler<ActionEvent>() { @Override public void handle(ActionEvent event) { String str = curPageText.getText(); int _page = Integer.parseInt( str ); showPage( _page - 2 ); } }); btnPrev.setVisible(false); //当前页码 输入框 curPageText = new TextField(); curPageText.setMaxWidth(50); curPageText.setOnKeyReleased(new EventHandler<KeyEvent>() { @Override public void handle(KeyEvent t) { if (t.getCode() == KeyCode.ENTER) { String str = curPageText.getText(); int _page = Integer.parseInt( str ); showPage( _page-1 ); } } }); curPageText.setVisible(false); //总页数 totalPageLabel = new Label("共页"); totalPageLabel.setVisible(false); //下一页 btnNetx = new Button(">"); btnNetx.setOnAction(new EventHandler<ActionEvent>() { @Override public void handle(ActionEvent event) { String str = curPageText.getText(); int _page = Integer.parseInt( str ); showPage( _page ); } }); btnNetx.setVisible(false); //跳到最后一页 btnLast = new Button(">>"); btnLast.setOnAction(new EventHandler<ActionEvent>() { @Override public void handle(ActionEvent event) { showPage( document.getNumberOfPages() - 1 ); } }); btnLast.setVisible(false); //显示和隐藏大纲 btnOutline = new Button("大纲"); btnOutline.setOnAction(new EventHandler() {