2D-Grafik Problem mit Paint

H

Heinz Kurz

Mitglied
Hi!
Kann mir jemand verraten was an meinem Code falsch ist? Am Tab "Grafik" meiner App ist ein JPanel in einem JScrollPane. Dort soll die Grafik gezeichnet werden (was soweit auch funktioniert) aber nur wenn man auf den Tab "Grafik" wechselt oder einen der RadioButtons klickt oder auf den Button "refresh" klickt. Die Grafik wird aber ständig neu gezeichnet - wie man sieht. Ich blick aber nicht durch, in welcher Schleife ich festhänge und was ich am Code korrigieren muss.
Danke schonmal.

Java: 
/*
 * Click nbfs://nbhost/SystemFileSystem/Templates/Licenses/license-default.txt to change this license
 * Click nbfs://nbhost/SystemFileSystem/Templates/GUIForms/JFrame.java to edit this template
 */

package Gewicht;

import java.awt.Color;
import java.awt.Component;
import java.awt.Dimension;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.Image;
import java.awt.RenderingHints;
import java.awt.ScrollPane;
import java.awt.Toolkit;
import java.awt.geom.Line2D;
import java.io.File;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.ResultSetMetaData;
import java.sql.SQLException;
import java.sql.Statement;
import java.text.DecimalFormat;
import java.time.LocalDate;
import java.time.format.DateTimeFormatter;
import java.time.temporal.ChronoUnit;
import java.util.Random;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.ScrollPaneConstants;
import javax.swing.SwingConstants;
import javax.swing.event.TableModelEvent;
import javax.swing.event.TableModelListener;
import javax.swing.table.DefaultTableCellRenderer;
import javax.swing.table.DefaultTableModel;
import javax.swing.table.TableCellRenderer;

// Zeichnen
class DrawPanel extends JPanel {

    private void doDrawing(Graphics g) {

        var g2d = (Graphics2D) g;
        g2d.setColor(Color.blue);
        setSize(2000,200);
        revalidate();
        for (int i = 0; i <= 100; i++) {
            var size = getSize();
            var insets = getInsets();
            int w = size.width - insets.left - insets.right;
            int h = size.height - insets.top - insets.bottom;
            var r = new Random();
            int x = Math.abs(r.nextInt()) % w;
            int y = Math.abs(r.nextInt()) % h;
            g2d.drawLine(0, 0, x, y);
        }
    }

    @Override
    public void paintComponent(Graphics g) {
        super.paintComponent(g);
        doDrawing(g);
    }
}


// Main
public class Gewicht extends javax.swing.JFrame {

    /**
    * Creates new form Gewicht
    */
    public Gewicht() {
        initComponents();

        this.setTitle("Gewicht");
        //  CENTER WINDOW TO SCREEN
        this.setLocationRelativeTo(null);
        //  SET ICON
        Image icon = Toolkit.getDefaultToolkit().getImage("H:\\Daten\\Java\\Gewicht\\Gewicht.png");
        this.setIconImage(icon);
        
        // Zeichenfläche
        jScrollPane3.setVisible(false);
        JScrollPane sp = new JScrollPane();
        sp.setLocation(30,105);
        sp.setSize(735,340);
        sp.setVerticalScrollBarPolicy(ScrollPaneConstants.VERTICAL_SCROLLBAR_NEVER);
        sp.setHorizontalScrollBarPolicy(ScrollPaneConstants.HORIZONTAL_SCROLLBAR_ALWAYS);
        jPanel2.add(sp);
        DrawPanel drawPanel = new DrawPanel();
        sp.setViewportView(drawPanel);
        //drawPanel.setLocation(100,40);
        //drawPanel.revalidate();
    }
    

    /**
     * This method is called from within the constructor to initialize the form.
     * WARNING: Do NOT modify this code. The content of this method is always
     * regenerated by the Form Editor.
     */
    @SuppressWarnings("unchecked")
    // <editor-fold defaultstate="collapsed" desc="Generated Code">                         
    private void initComponents() {

        buttonGroup1 = new javax.swing.ButtonGroup();
        buttonGroup2 = new javax.swing.ButtonGroup();
        jTabbedPane1 = new javax.swing.JTabbedPane();
        jPanel1 = new javax.swing.JPanel();
        jScrollPane1 = new javax.swing.JScrollPane();
        jTable1 = new javax.swing.JTable();
        jButton1 = new javax.swing.JButton();
        jPanel2 = new javax.swing.JPanel();
        jPanel4 = new javax.swing.JPanel();
        jRadioButton1 = new javax.swing.JRadioButton();
        jRadioButton2 = new javax.swing.JRadioButton();
        jPanel5 = new javax.swing.JPanel();
        jRadioButton3 = new javax.swing.JRadioButton();
        jRadioButton4 = new javax.swing.JRadioButton();
        jRadioButton5 = new javax.swing.JRadioButton();
        jButton2 = new javax.swing.JButton();
        jScrollPane3 = new javax.swing.JScrollPane();
        jPanel6 = new javax.swing.JPanel();
        jPanel3 = new javax.swing.JPanel();
        jScrollPane2 = new javax.swing.JScrollPane();
        jTextArea1 = new javax.swing.JTextArea();
        jButton3 = new javax.swing.JButton();

        setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
        setBackground(new java.awt.Color(255, 255, 255));
        setMaximumSize(new java.awt.Dimension(800, 500));
        setMinimumSize(new java.awt.Dimension(800, 500));
        setResizable(false);
        setSize(new java.awt.Dimension(800, 600));

        jTabbedPane1.setBackground(new java.awt.Color(255, 255, 255));
        jTabbedPane1.setBorder(javax.swing.BorderFactory.createLineBorder(new java.awt.Color(0, 0, 0)));
        jTabbedPane1.addChangeListener(new javax.swing.event.ChangeListener() {
            public void stateChanged(javax.swing.event.ChangeEvent evt) {
                jTabbedPane1StateChanged(evt);
            }
        });

        jPanel1.setBackground(new java.awt.Color(255, 255, 255));

        jTable1.setModel(new javax.swing.table.DefaultTableModel(
            new Object [][] {
                {null, null, null, null},
                {null, null, null, null},
                {null, null, null, null},
                {null, null, null, null}
            },
            new String [] {
                "Title 1", "Title 2", "Title 3", "Title 4"
            }
        ));
        jTable1.setAutoResizeMode(javax.swing.JTable.AUTO_RESIZE_OFF);
        jScrollPane1.setViewportView(jTable1);

        jButton1.setText("Neu ...");
        jButton1.setToolTipText("neuen Eintrag erstellen");
        jButton1.setPreferredSize(new java.awt.Dimension(100, 30));
        jButton1.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jButton1ActionPerformed(evt);
            }
        });

        javax.swing.GroupLayout jPanel1Layout = new javax.swing.GroupLayout(jPanel1);
        jPanel1.setLayout(jPanel1Layout);
        jPanel1Layout.setHorizontalGroup(
            jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(jPanel1Layout.createSequentialGroup()
                .addGap(36, 36, 36)
                .addComponent(jScrollPane1, javax.swing.GroupLayout.PREFERRED_SIZE, 339, javax.swing.GroupLayout.PREFERRED_SIZE)
                .addGap(29, 29, 29)
                .addComponent(jButton1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
                .addContainerGap(282, Short.MAX_VALUE))
        );
        jPanel1Layout.setVerticalGroup(
            jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(jPanel1Layout.createSequentialGroup()
                .addGap(18, 18, 18)
                .addComponent(jButton1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
                .addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
            .addGroup(jPanel1Layout.createSequentialGroup()
                .addContainerGap()
                .addComponent(jScrollPane1, javax.swing.GroupLayout.DEFAULT_SIZE, 443, Short.MAX_VALUE)
                .addContainerGap())
        );

        jTabbedPane1.addTab("Daten", jPanel1);

        jPanel2.setBackground(new java.awt.Color(255, 255, 255));

        jPanel4.setBackground(new java.awt.Color(255, 255, 255));
        jPanel4.setBorder(javax.swing.BorderFactory.createTitledBorder("Grafik"));

        buttonGroup1.add(jRadioButton1);
        jRadioButton1.setSelected(true);
        jRadioButton1.setText("Balken");
        jRadioButton1.addItemListener(new java.awt.event.ItemListener() {
            public void itemStateChanged(java.awt.event.ItemEvent evt) {
                jRadioButton1ItemStateChanged(evt);
            }
        });

        buttonGroup1.add(jRadioButton2);
        jRadioButton2.setText("Kreise");
        jRadioButton2.addItemListener(new java.awt.event.ItemListener() {
            public void itemStateChanged(java.awt.event.ItemEvent evt) {
                jRadioButton2ItemStateChanged(evt);
            }
        });

        javax.swing.GroupLayout jPanel4Layout = new javax.swing.GroupLayout(jPanel4);
        jPanel4.setLayout(jPanel4Layout);
        jPanel4Layout.setHorizontalGroup(
            jPanel4Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(jPanel4Layout.createSequentialGroup()
                .addContainerGap()
                .addComponent(jRadioButton1, javax.swing.GroupLayout.PREFERRED_SIZE, 70, javax.swing.GroupLayout.PREFERRED_SIZE)
                .addGap(18, 18, 18)
                .addComponent(jRadioButton2, javax.swing.GroupLayout.PREFERRED_SIZE, 70, javax.swing.GroupLayout.PREFERRED_SIZE)
                .addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
        );
        jPanel4Layout.setVerticalGroup(
            jPanel4Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(jPanel4Layout.createSequentialGroup()
                .addContainerGap()
                .addGroup(jPanel4Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                    .addComponent(jRadioButton1)
                    .addComponent(jRadioButton2))
                .addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
        );

        jPanel5.setBackground(new java.awt.Color(255, 255, 255));
        jPanel5.setBorder(javax.swing.BorderFactory.createTitledBorder("Grafik"));

        buttonGroup2.add(jRadioButton3);
        jRadioButton3.setSelected(true);
        jRadioButton3.setText("Datum");
        jRadioButton3.addItemListener(new java.awt.event.ItemListener() {
            public void itemStateChanged(java.awt.event.ItemEvent evt) {
                jRadioButton3ItemStateChanged(evt);
            }
        });

        buttonGroup2.add(jRadioButton4);
        jRadioButton4.setText("Monat");
        jRadioButton4.addItemListener(new java.awt.event.ItemListener() {
            public void itemStateChanged(java.awt.event.ItemEvent evt) {
                jRadioButton4ItemStateChanged(evt);
            }
        });

        buttonGroup2.add(jRadioButton5);
        jRadioButton5.setText("Jahr");
        jRadioButton5.addItemListener(new java.awt.event.ItemListener() {
            public void itemStateChanged(java.awt.event.ItemEvent evt) {
                jRadioButton5ItemStateChanged(evt);
            }
        });

        javax.swing.GroupLayout jPanel5Layout = new javax.swing.GroupLayout(jPanel5);
        jPanel5.setLayout(jPanel5Layout);
        jPanel5Layout.setHorizontalGroup(
            jPanel5Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(jPanel5Layout.createSequentialGroup()
                .addContainerGap()
                .addComponent(jRadioButton3, javax.swing.GroupLayout.PREFERRED_SIZE, 70, javax.swing.GroupLayout.PREFERRED_SIZE)
                .addGap(18, 18, 18)
                .addComponent(jRadioButton4, javax.swing.GroupLayout.PREFERRED_SIZE, 71, javax.swing.GroupLayout.PREFERRED_SIZE)
                .addGap(18, 18, 18)
                .addComponent(jRadioButton5, javax.swing.GroupLayout.PREFERRED_SIZE, 58, javax.swing.GroupLayout.PREFERRED_SIZE)
                .addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
        );
        jPanel5Layout.setVerticalGroup(
            jPanel5Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(jPanel5Layout.createSequentialGroup()
                .addContainerGap()
                .addGroup(jPanel5Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                    .addComponent(jRadioButton3)
                    .addComponent(jRadioButton4)
                    .addComponent(jRadioButton5))
                .addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
        );

        jButton2.setText("refresh!");
        jButton2.setPreferredSize(new java.awt.Dimension(80, 30));
        jButton2.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jButton2ActionPerformed(evt);
            }
        });

        jScrollPane3.setVerticalScrollBarPolicy(javax.swing.ScrollPaneConstants.VERTICAL_SCROLLBAR_NEVER);
        jScrollPane3.setViewportBorder(javax.swing.BorderFactory.createLineBorder(new java.awt.Color(0, 0, 0)));

        jPanel6.setBackground(new java.awt.Color(255, 255, 255));

        javax.swing.GroupLayout jPanel6Layout = new javax.swing.GroupLayout(jPanel6);
        jPanel6.setLayout(jPanel6Layout);
        jPanel6Layout.setHorizontalGroup(
            jPanel6Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGap(0, 745, Short.MAX_VALUE)
        );
        jPanel6Layout.setVerticalGroup(
            jPanel6Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGap(0, 337, Short.MAX_VALUE)
        );

        jScrollPane3.setViewportView(jPanel6);

        javax.swing.GroupLayout jPanel2Layout = new javax.swing.GroupLayout(jPanel2);
        jPanel2.setLayout(jPanel2Layout);
        jPanel2Layout.setHorizontalGroup(
            jPanel2Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(jPanel2Layout.createSequentialGroup()
                .addGap(31, 31, 31)
                .addGroup(jPanel2Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                    .addComponent(jScrollPane3, javax.swing.GroupLayout.PREFERRED_SIZE, 733, javax.swing.GroupLayout.PREFERRED_SIZE)
                    .addGroup(jPanel2Layout.createSequentialGroup()
                        .addComponent(jPanel4, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
                        .addGap(36, 36, 36)
                        .addComponent(jPanel5, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
                        .addGap(48, 48, 48)
                        .addComponent(jButton2, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)))
                .addContainerGap(22, Short.MAX_VALUE))
        );
        jPanel2Layout.setVerticalGroup(
            jPanel2Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(jPanel2Layout.createSequentialGroup()
                .addGroup(jPanel2Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                    .addGroup(jPanel2Layout.createSequentialGroup()
                        .addGap(15, 15, 15)
                        .addGroup(jPanel2Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING, false)
                            .addComponent(jPanel4, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
                            .addComponent(jPanel5, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)))
                    .addGroup(jPanel2Layout.createSequentialGroup()
                        .addGap(33, 33, 33)
                        .addComponent(jButton2, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)))
                .addGap(18, 18, 18)
                .addComponent(jScrollPane3, javax.swing.GroupLayout.PREFERRED_SIZE, 341, javax.swing.GroupLayout.PREFERRED_SIZE)
                .addContainerGap(25, Short.MAX_VALUE))
        );

        jTabbedPane1.addTab("Grafik", jPanel2);

        jPanel3.setBackground(new java.awt.Color(255, 255, 255));

        jTextArea1.setColumns(20);
        jTextArea1.setRows(5);
        jScrollPane2.setViewportView(jTextArea1);

        jButton3.setText("refresh!");
        jButton3.setPreferredSize(new java.awt.Dimension(80, 30));
        jButton3.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jButton3ActionPerformed(evt);
            }
        });

        javax.swing.GroupLayout jPanel3Layout = new javax.swing.GroupLayout(jPanel3);
        jPanel3.setLayout(jPanel3Layout);
        jPanel3Layout.setHorizontalGroup(
            jPanel3Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(jPanel3Layout.createSequentialGroup()
                .addGap(35, 35, 35)
                .addComponent(jScrollPane2, javax.swing.GroupLayout.PREFERRED_SIZE, 342, javax.swing.GroupLayout.PREFERRED_SIZE)
                .addGap(30, 30, 30)
                .addComponent(jButton3, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
                .addContainerGap(299, Short.MAX_VALUE))
        );
        jPanel3Layout.setVerticalGroup(
            jPanel3Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(jPanel3Layout.createSequentialGroup()
                .addContainerGap()
                .addComponent(jScrollPane2, javax.swing.GroupLayout.DEFAULT_SIZE, 443, Short.MAX_VALUE)
                .addContainerGap())
            .addGroup(jPanel3Layout.createSequentialGroup()
                .addGap(25, 25, 25)
                .addComponent(jButton3, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
                .addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
        );

        jTabbedPane1.addTab("Statistik, Infos", jPanel3);

        javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
        getContentPane().setLayout(layout);
        layout.setHorizontalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(layout.createSequentialGroup()
                .addContainerGap()
                .addComponent(jTabbedPane1)
                .addContainerGap())
        );
        layout.setVerticalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(layout.createSequentialGroup()
                .addContainerGap()
                .addComponent(jTabbedPane1)
                .addContainerGap())
        );

        pack();
    }// </editor-fold>                       


    private void jTabbedPane1StateChanged(javax.swing.event.ChangeEvent evt) {                                         
        // click auf Tab
        if (jTabbedPane1.getSelectedIndex() == 1) {
            repaint();
        } else if (jTabbedPane1.getSelectedIndex() == 2) {
            //Info();
        }
    }                                         

    private void jButton3ActionPerformed(java.awt.event.ActionEvent evt) {                                         
        // Infos und Statistik
        //Info();
    }                                       

    private void jButton2ActionPerformed(java.awt.event.ActionEvent evt) {                                         
        repaint();
    }                                       

    private void jRadioButton1ItemStateChanged(java.awt.event.ItemEvent evt) {                                               
        repaint();
    }                                             

    private void jRadioButton2ItemStateChanged(java.awt.event.ItemEvent evt) {                                               
        repaint();
    }                                             

    private void jRadioButton3ItemStateChanged(java.awt.event.ItemEvent evt) {                                               
        repaint();
    }                                             

    private void jRadioButton4ItemStateChanged(java.awt.event.ItemEvent evt) {                                               
        repaint();
    }                                             

    private void jRadioButton5ItemStateChanged(java.awt.event.ItemEvent evt) {                                               
        repaint();
    }                                             



    /**
     * @param args the command line arguments
     */
    public static void main(String args[]) {
        /* Set the Nimbus look and feel */
        //<editor-fold defaultstate="collapsed" desc=" Look and feel setting code (optional) ">
        /* If Nimbus (introduced in Java SE 6) is not available, stay with the default look and feel.
         * For details see http://download.oracle.com/javase/tutorial/uiswing/lookandfeel/plaf.html
         */
        try {
            for (javax.swing.UIManager.LookAndFeelInfo info : javax.swing.UIManager.getInstalledLookAndFeels()) {
                if ("Nimbus".equals(info.getName())) {
                    javax.swing.UIManager.setLookAndFeel(info.getClassName());
                    break;
                }
            }
        } catch (ClassNotFoundException ex) {
            java.util.logging.Logger.getLogger(Gewicht.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
        } catch (InstantiationException ex) {
            java.util.logging.Logger.getLogger(Gewicht.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
        } catch (IllegalAccessException ex) {
            java.util.logging.Logger.getLogger(Gewicht.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
        } catch (javax.swing.UnsupportedLookAndFeelException ex) {
            java.util.logging.Logger.getLogger(Gewicht.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
        }
        //</editor-fold>

        /* Create and display the form */
        java.awt.EventQueue.invokeLater(new Runnable() {
            public void run() {
                new Gewicht().setVisible(true);
            }
        });
    }

    // Variables declaration - do not modify                     
    private javax.swing.ButtonGroup buttonGroup1;
    private javax.swing.ButtonGroup buttonGroup2;
    private javax.swing.JButton jButton1;
    private javax.swing.JButton jButton2;
    private javax.swing.JButton jButton3;
    private javax.swing.JPanel jPanel1;
    private javax.swing.JPanel jPanel2;
    private javax.swing.JPanel jPanel3;
    private javax.swing.JPanel jPanel4;
    private javax.swing.JPanel jPanel5;
    private javax.swing.JPanel jPanel6;
    private javax.swing.JRadioButton jRadioButton1;
    private javax.swing.JRadioButton jRadioButton2;
    private javax.swing.JRadioButton jRadioButton3;
    private javax.swing.JRadioButton jRadioButton4;
    private javax.swing.JRadioButton jRadioButton5;
    private javax.swing.JScrollPane jScrollPane1;
    private javax.swing.JScrollPane jScrollPane2;
    private javax.swing.JScrollPane jScrollPane3;
    private javax.swing.JTabbedPane jTabbedPane1;
    private javax.swing.JTable jTable1;
    private javax.swing.JTextArea jTextArea1;
    // End of variables declaration                   
}
 
Neumi5694

Neumi5694

Top Contributor
Du änderst während des Zeichenvorgangs die Größe und rufst außerdem revalidate auf.
Beides löst einen ein repaint aus.
paintComponent darf wirklich nur zeichnen und nichts anderes.
 
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JavaTalksToMe JavaFx ExekutorService Problem AWT, Swing, JavaFX & SWT 2
Zrebna Problem bei Eventhandling (Value soll nach jedem erneutem Klick gelöscht werden) AWT, Swing, JavaFX & SWT 4
B Problem mit JavaFX AWT, Swing, JavaFX & SWT 5
J css Problem AWT, Swing, JavaFX & SWT 5
B JavaFX habe mein Problem fett markiert AWT, Swing, JavaFX & SWT 2
A Swing Filter-Problem AWT, Swing, JavaFX & SWT 1
temi JavaFX Problem mit IntelliJ und JavaFx 11 unter XUbuntu AWT, Swing, JavaFX & SWT 3
L Java FX Problem mit Ubuntu 18 und JavaFx AWT, Swing, JavaFX & SWT 27
H JTable TableCellEditor-Problem AWT, Swing, JavaFX & SWT 0
kodela Swing Problem mit Warten-Dialog AWT, Swing, JavaFX & SWT 16
B JavaFx Scene Builder Problem AWT, Swing, JavaFX & SWT 2
B [Problem] Java öffnet Word-Datein nicht AWT, Swing, JavaFX & SWT 14
T DataBinding Problem AWT, Swing, JavaFX & SWT 5
Blender3D Problem mit € Symbol Font Gotham Windows 10 Swing AWT, Swing, JavaFX & SWT 11
T Problem mit JTable Sortierung AWT, Swing, JavaFX & SWT 2
J Problem mit Platfrom run later AWT, Swing, JavaFX & SWT 15
J Problem mit Platfrom run later AWT, Swing, JavaFX & SWT 0
D Swing SwingUtils / Thread Problem AWT, Swing, JavaFX & SWT 3
L JavaFX Problem beim Aufrufen einer Methode AWT, Swing, JavaFX & SWT 5
T Swing Problem mit Datum und FormattedTextField AWT, Swing, JavaFX & SWT 2
S AWT Java print dialog Problem AWT, Swing, JavaFX & SWT 0
olfibits JavaFX Problem mit HTMLEditor AWT, Swing, JavaFX & SWT 0
W SWT hover-background-problem with first column in TreeViewer AWT, Swing, JavaFX & SWT 0
M Problem mit Add JScrollPane AWT, Swing, JavaFX & SWT 25
Mario1409 Swing JTextArea scroll Problem AWT, Swing, JavaFX & SWT 0
N Swing Problem mit loop AWT, Swing, JavaFX & SWT 2
S Swing Problem mit Button und ActionListener AWT, Swing, JavaFX & SWT 5
S Swing & Clean und build Problem AWT, Swing, JavaFX & SWT 12
S JLabel setText() Problem AWT, Swing, JavaFX & SWT 6
I 2D-Grafik Problem beim Ändern der Farbe eine 2d Objekts AWT, Swing, JavaFX & SWT 3
G Swing Splitpane Problem AWT, Swing, JavaFX & SWT 1
F Problem mit der FXML Rectangle Shape AWT, Swing, JavaFX & SWT 2
N JavaFX Stranges Problem mit der Autoscroll-Eigenschaft von Textareas AWT, Swing, JavaFX & SWT 0
E Java FX FXML Problem mit html Scriptausführung AWT, Swing, JavaFX & SWT 2
J JavaFX Intersect Problem mit Shapes AWT, Swing, JavaFX & SWT 10
R JavaFX MediaPlayer AVI-Problem AWT, Swing, JavaFX & SWT 1
M Swing Problem mit ListCellRenderer AWT, Swing, JavaFX & SWT 7
D Problem mit JTable AWT, Swing, JavaFX & SWT 1
F GUI Auflösung ändern - Koordianten und Proportions Problem AWT, Swing, JavaFX & SWT 21
J Problem mit Button darstellung AWT, Swing, JavaFX & SWT 23
M Problem mit Layoutmanagern... Hilfe wäre sehr nett. AWT, Swing, JavaFX & SWT 2
S 2D-Grafik Problem mit Variablen AWT, Swing, JavaFX & SWT 4
7 JavaFX Problem beim Zeichnen eines Dreiecks in einem GUI AWT, Swing, JavaFX & SWT 6
M Swing AttributiveCellTableModel addRow() Problem AWT, Swing, JavaFX & SWT 1
J Swing Problem mit Graphics Methode AWT, Swing, JavaFX & SWT 4
N JavaFX Problem mit table multiple selection AWT, Swing, JavaFX & SWT 5
K CheckBox Problem AWT, Swing, JavaFX & SWT 5
Grevak DisplayMode Problem seit Windows 10 AWT, Swing, JavaFX & SWT 2
S Swing Eigene JComboBox Problem! AWT, Swing, JavaFX & SWT 1
B Swing Problem mit Bildpfad AWT, Swing, JavaFX & SWT 4
N Swing Problem beim Scrollen mit JScrollPane AWT, Swing, JavaFX & SWT 6
V Graphics g - drawOval problem mit background AWT, Swing, JavaFX & SWT 1
C AWT Problem mit Protokol Fenster AWT, Swing, JavaFX & SWT 0
M Swing pack() Problem mit Taskleiste AWT, Swing, JavaFX & SWT 4
N Swing Choice- Problem! AWT, Swing, JavaFX & SWT 8
Q "AWT-EventQueue-0" Exception Problem AWT, Swing, JavaFX & SWT 4
D jButton Problem, ein Rieser Button bedeckt das ganze frame AWT, Swing, JavaFX & SWT 1
A Problem: repaint() - Schleife AWT, Swing, JavaFX & SWT 3
J Anfänger GUI Problem bei der Ausführung eines sehr einfachen Programms AWT, Swing, JavaFX & SWT 2
P AWT Problem mit Platzierung (GridBagLayout) AWT, Swing, JavaFX & SWT 2
N Swing JTree Problem beim erstellen der Knoten AWT, Swing, JavaFX & SWT 0
N Swing CardLayout: Problem beim Wechsel zwischen den JPanels AWT, Swing, JavaFX & SWT 3
A Mini-Menu-Schriften. Ein Problem bei hohen DPI Zahlen AWT, Swing, JavaFX & SWT 2
Z Canvas in Frame einfügen. Problem mit 4-Gewinnt AWT, Swing, JavaFX & SWT 1
C Thread-/ Simulations- Problem AWT, Swing, JavaFX & SWT 18
G Swing Setvisible problem AWT, Swing, JavaFX & SWT 1
J JTabbedPane: close Button Problem AWT, Swing, JavaFX & SWT 2
Tom299 JavaFX -> fxmlLoader -> getResourceAsStream Problem AWT, Swing, JavaFX & SWT 1
T Problem: ComboBox und addItem AWT, Swing, JavaFX & SWT 5
M JTextArea wird nicht aktualisiert (ActionListener-Problem) AWT, Swing, JavaFX & SWT 1
T LayoutManager LookAndFeel-Problem AWT, Swing, JavaFX & SWT 4
F Problem mit Implementierung von Kollisionsabfrage AWT, Swing, JavaFX & SWT 5
vodkaz (javafx) Image Problem AWT, Swing, JavaFX & SWT 2
T Problem beim Zeichnen von Rechteck AWT, Swing, JavaFX & SWT 3
B JavaFX Problem bei Kamera / Group, gesamte Scene bewegt sich mit AWT, Swing, JavaFX & SWT 0
L Swing Vier Gewinnt Problem AWT, Swing, JavaFX & SWT 2

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