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矩形表示特定的媒体播放器javafx

screenshot javafx

mustafa-naeem · 技术社区 · 6 年前

在这个JavaFX项目中

public class FXMLDocumentController implements Initializable {

    @FXML
    private MediaView media_view;

    private Media me;
    private MediaPlayer mp;

    @Override
    public void initialize(URL url, ResourceBundle rb) 
    {
        String s="/home/mustafa987/Videos/sampels/video10.mp4";
        me=new Media(new File(s).toURI().toString());
        mp=new MediaPlayer(me);
        media_view.setMediaPlayer(mp);
        mp.play();
        mp.setRate(1);

        Robot robot=new Robot();

        Rectangle rectangle=new Rectangle(Toolkit.getDefaultToolkit().getScreenSize());
        //in the line above the Rectangle indicate to the desktop screen so the robot can capture the screenshot  

        BufferedImage buffer=robot.createScreenCapture(rectangle);
        //take screenshot
        Image image=SwingFXUtils.toFXImage(buffer, null);
    }
}

如何使矩形指示程序MediaView而不是桌面屏幕(或)如果有方法使机器人直接指示程序MediaView 谢谢你

1 回复 | 直到 6 年前

Pagbo 6 年前

我真的不知道您的需要,但在initialize方法中创建图像对我来说没有任何意义。

一个快速解决方案可以是以下解决方案:

public class FXMLDocumentController extends BorderPane {

   @FXML
   private MediaView mediaView;

   @FXML
   private VBox container;

   private Media me;

   private MediaPlayer mp;

   /**
    * Constructor.
    */
   public FXMLDocumentController() {
      FXMLLoader loader = new FXMLLoader(getClass().getResource("Media.fxml"));
      loader.setRoot(this);
      loader.setController(this);

      try {
         loader.load();
      } catch(IOException e) {
         System.out.println("An error occurs while trying to load the media component." + e);
      }
   }

   @FXML
   private void initialize() {
      // String s = "/home/mustafa987/Videos/sampels/video10.mp4";
      // me = new Media(new File(s).toURI().toString());
      // mp = new MediaPlayer(me);
      // mediaView.setMediaPlayer(mp);
      // mp.play();
      // mp.setRate(1);
   }

   @FXML
   private void handleSnap() throws IOException {
      System.out.println("User asks snap.");
      WritableImage img = container.snapshot(new SnapshotParameters(), null);
      BufferedImage bufImg = SwingFXUtils.fromFXImage(img, null);
      ImageIO.write(bufImg, "png", new File("./save/snap.png"));
   }
}

它拍摄 VBox 包含 MediaView 因为我没有可显示的媒体,但它也可以使用 MediaView 此组件继承自 Node 。

由于您没有提供,这是我使用的FXML文件:

<?xml version="1.0" encoding="UTF-8"?>

<?import javafx.scene.layout.BorderPane?>
<?import javafx.scene.control.Label?>
<?import javafx.scene.layout.GridPane?>
<?import javafx.scene.control.Button?>
<?import javafx.scene.layout.ColumnConstraints?>
<?import javafx.scene.layout.HBox?>
<?import javafx.scene.media.MediaView?>
<?import javafx.scene.layout.VBox?>

<fx:root xmlns:fx="http://javafx.com/fxml/1" type="BorderPane">
    <top>
        <GridPane >
            <children>
                <Label GridPane.rowIndex="0" GridPane.columnIndex="0" text="Snap frame" />
                <HBox GridPane.rowIndex="0" GridPane.columnIndex="1"  alignment="CENTER">
                    <children>
                        <Button text="Take snap.." onAction="#handleSnap" />
                    </children>
                </HBox>
            </children>
            <columnConstraints>
                <ColumnConstraints percentWidth="90.0" />
                <ColumnConstraints percentWidth="10.0" />
            </columnConstraints>
        </GridPane>
    </top>

    <center>
        <VBox fx:id="container" style="-fx-background-color:rgb(200,200,200); -fx-border-color:DARKBLUE">
            <children>
                <Label text="Media Player"/>
                <MediaView fx:id="mediaView"/>
            </children>
        </VBox>
    </center>
    <bottom>
        <Label text="Not in the snap scope (NITSS)"/>
    </bottom>
    <left>
        <Label text="NITSS"/>
    </left>
    <right>
        <Label text="NITSS"/>
    </right>
</fx:root>