JavaFX实现图片显示，文本输入，表格显示
测试开发了一个javaFx写的支持文本输入，pdf文件转成图片显示，可以进行图标显示的demo，其中用Eclipse实现，代码结构如下图所示：
Main.java代码如下所示：
package application;
package application;
import java.awt.ItemSelectable;
import java.awt.Robot;
import java.awt.image.BufferedImage;
import java.io.IOException;
import java.net.URL;
import java.text.DateFormat;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.ResourceBundle;
import javafx.beans.Observable;
import javafx.collections.FXCollections;
import javafx.collections.ObservableList;
import javafx.embed.swing.SwingFXUtils;
import javafx.event.EventHandler;
import javafx.fxml.FXML;
import javafx.fxml.Initializable;
import javafx.scene.control.Button;
import javafx.scene.control.TableColumn;
import javafx.scene.control.TableView;
import javafx.scene.control.TextField;
import javafx.scene.control.cell.PropertyValueFactory;
import javafx.scene.image.ImageView;
import javafx.scene.image.WritableImage;
import javafx.scene.input.ClipboardContent;
import javafx.scene.input.DragEvent;
import javafx.scene.input.Dragboard;
import javafx.scene.input.KeyCode;
import javafx.scene.input.KeyEvent;
import javafx.scene.input.MouseEvent;
import javafx.scene.input.ScrollEvent;
import javafx.scene.input.TransferMode;
import javafx.scene.layout.BorderPane;
import pdfboxTest.PdfBoxTest;
public class MyController implements Initializable {
@FXML
private Button myButton;
@FXML
private TextField myTextFile;
@FXML
private ImageView myImageView;
@FXML
private BorderPane myBorderPane;
private Boolean isDragStart = false;
private double startX;
private double startY;
private double traslateX;
private double traslateY;
@Override
public void initialize(URL location, ResourceBundle resources) {
// TODO Auto-generated method stub
myTextFile.setVisible(true);
myTextFile.addEventFilter(KeyEvent.KEY_PRESSED, new EventHandler() {
@Override
public void handle(KeyEvent event) {
event.consume();
KeyCode code = event.getCode();
if (code == KeyCode.ENTER) {
try {
System.out.println(myTextFile.getText());
//myImageView.setVisible(false);
// TextField tx = new TextField(myTextFile.getText());
// myBorderPane.setCenter(tx);
//插入表格
TableView tv = new TableView();
ObservableList Task = FXCollections.observableArrayList();
Task.add(new Task("雪龙号",1,"10-1完工"));
Task.add(new Task("南极号", 2, "10-2完工"));
tv.setItems(Task);
TableColumn shipCol = new TableColumn("ship");
shipCol.setCellValueFactory(new PropertyValueFactory<>("ship"));
TableColumn numCol = new TableColumn("num");
numCol.setCellValueFactory(new PropertyValueFactory<>("num"));
TableColumn planCol = new TableColumn("plan");
planCol.setCellValueFactory(new PropertyValueFactory<>("plan"));
tv.getColumns().setAll(shipCol,numCol,planCol);
myBorderPane.setCenter(tv);
myTextFile.clear();
new Robot().keyPress(java.awt.event.KeyEvent.VK_RIGHT);//什么意思
// XXX javafx has no robot for key type...
} catch (Exception e1) {
}
event.consume();
}
}
});
}
public void showDataTime() {
System.out.println("按钮被点击啦啊啊啊啊！");
Date now = new Date();
DateFormat df = new SimpleDateFormat("yyyy-dd-MM HH:mm:ss");
String dateTimeString = df.format(now);
BufferedImage image = null;
try {
image = PdfBoxTest.getImageFromPdf("H:/test.pdf");
//ImageIO.write(image, "png", new File("D:/test.png"));
System.out.println("image写入完毕");
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
WritableImage wImage = new WritableImage(image.getWidth(),image.getHeight());
System.out.println("image.getWidth()"+image.getWidth()+" image.getHeight()"+image.getHeight());
SwingFXUtils.toFXImage(image, wImage);//什么作用
myTextFile.setText(dateTimeString);//设置文本框默认显示时间
myImageView.setFitHeight(600);
myImageView.setFitWidth(900);
myImageView.setImage(wImage);
}
public void keyInputAction() {
System.out.println("键盘事件被监听到了");
myTextFile.requestFocus();
String str = myTextFile.getText();
CharSequence cs = myTextFile.getCharacters();//getCharacters是返回的什么？
System.out.println("cs:" + cs);
System.out.println(str);
myTextFile.clear();
}
public void onScoller(ScrollEvent event) {
System.out.println("滚轮事件触发");
System.out.println(event.getDeltaX());
System.out.println(event.getDeltaY());
if (event.getDeltaY() > 0) {
myImageView.setScaleX(myImageView.getScaleX() * 1.2);
myImageView.setScaleY(myImageView.getScaleY() * 1.2);
event.consume();
// myImageView.resize(500, 500);
System.out.println("image resized!");
// ScaleTransition st =
// ScaleTransitionBuilder.create().byX(1.5).byY(1.5).node(myImageView).duration(Duration.millis(500)).build();
} else {
myImageView.setScaleX(myImageView.getScaleX() * 0.8);
myImageView.setScaleY(myImageView.getScaleY() * 0.8);
}
}
public void onMousePressed(MouseEvent event) {
System.out.println("onMousePressed:x=" + event.getX() + ";y=" + event.getY());
startX = event.getSceneX();
startY = event.getSceneY();
traslateX = myImageView.getTranslateX();
traslateY = myImageView.getTranslateY();
}
public void onMouseMoved(MouseEvent event) {
System.out.println("onMouseMoved:x=" + event.getX() + ";y=" + event.getY());
}
@FXML
public void onMouseRelease(MouseEvent event) {
System.out.println("onMouseRelease:x=" + event.getX() + ";y=" + event.getY());
isDragStart = false;
event.consume();
}
@FXML
public void OnDragDetected(MouseEvent event) throws InterruptedException {
System.out.println("OnDragDetected" + event.getX() + ";y=" + event.getY());
//填充内容，触发OnDragDetected事件
Dragboard db = myImageView.startDragAndDrop(TransferMode.ANY);
ClipboardContent content = new ClipboardContent();
content.putString("hahahahh");
db.setContent(content);
// startX = event.getSceneX();
// startY = event.getSceneY();
event.consume();
}
public void onDragOver(DragEvent event) {
System.out.println("onDragOver:" + (event.getSceneX()-startX) + ";y=" + (event.getSceneY()-startY));
// traslateX = event.getSceneX()-startX;
// traslateY = event.getSceneY()-startY;
myImageView.setTranslateX(traslateX+event.getSceneX()-startX);
myImageView.setTranslateY(traslateY+event.getSceneY()-startY);
}
}
package application;
public class Task{
private String ship;
private Integer num;
private String plan;
Task(String ship,Integer num, String plan){
this.ship= ship;
this.num = num;
this.plan = plan;
}
public String getShip() {
return ship;
}
public void setShip(String ship) {
this.ship = ship;
}
public Integer getNum() {
return num;
}
public void setNum(Integer num) {
this.num = num;
}
public String getPlan() {
return plan;
}
public void setPlan(String plan) {
this.plan = plan;
}
}
package pdfboxTest;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;
import javax.imageio.ImageIO;
import org.apache.pdfbox.pdmodel.PDDocument;
import org.apache.pdfbox.pdmodel.encryption.InvalidPasswordException;
import org.apache.pdfbox.rendering.PDFRenderer;
public class PdfBoxTest {
public static void main(String[] args) throws InvalidPasswordException, IOException {
PDDocument doc = PDDocument.load(new File("H:/test.pdf"));
PDFRenderer renderer = new PDFRenderer(doc);
int pageCount = doc.getNumberOfPages();
System.out.println(pageCount);
for(int i=0;i