滑动任何JPanel [英] Sliding any JPanel

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本文介绍了滑动任何JPanel的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！

问题描述

我试图创建一个通用类来滑动两个任意大小的JPanels，但是当我使用它时，一个要滑动的JPanel便消失了.我还注意到，JPanel"innerPanel"的宽度(从200,200面板插入时)已从400,200重置为在启动Thread之后将大小重置为200,200

Im trying to make a universal class for sliding two any-samesized JPanels but when I use it, the one to get slid just disappears. What I also noticed is that the JPanel "innerPanel"'s width is being reset (when transisting a 200,200 panel) from 400,200 that the size gets reset to 200,200 after the Thread is started

package org.chimeras1684.ui.panels;

import java.awt.Point;
import java.util.Date;
import java.util.Timer;
import java.util.TimerTask;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JViewport;

/**
 *
 * @author Arhowk
 */
public final class Transistor extends javax.swing.JFrame {

/**
 * Creates new form test
 */
public enum TDirection{
    MOVING_TO_LEFT,
    MOVING_TO_RIGHT,
    MOVING_TO_TOP,
    MOVING_TO_BOTTOM;
}
private static Transistor instance;
static{
    instance = new Transistor();
}
public static Transistor getInstance(){
    return instance;
}
private Transistor() {
    initComponents();
    setVisible(true);
    slide(TDirection.MOVING_TO_TOP, this, jPanel2, jPanel1);
}

public void slide(final TDirection dir, final JFrame root, final JPanel in, final JPanel out){
    if(in.getSize().height != out.getSize().height ||  out.getSize().width != in.getSize().width ){
        throw new IllegalArgumentException("Dimension in is not equal to dimension of out");
    }
    panelTL.removeAll();
    panelBL.removeAll();
    panelBR.removeAll();
    panelTR.validate();
    panelTR.repaint();
    panelTL.validate();
    panelTL.repaint();
    panelBR.validate();
    panelBR.repaint();
    panelBL.validate();
    panelBL.repaint();
    final double width = in.getSize().width;
    final double height = in.getSize().height;

    int x = out.getLocation().x;
    int y = out.getLocation().y;

    final double speedWidthModifier = (dir == TDirection.MOVING_TO_LEFT) ? -1 : (dir == TDirection.MOVING_TO_RIGHT) ? 1 : 0;
    final double speedHeightModifier = (dir == TDirection.MOVING_TO_BOTTOM) ? -1 : (dir == TDirection.MOVING_TO_TOP) ? 1 : 0;

    final double xAtEnd = (dir == TDirection.MOVING_TO_RIGHT) ? width : 0;
    final double yAtEnd = (dir == TDirection.MOVING_TO_BOTTOM) ? height : 0;

    if(dir == TDirection.MOVING_TO_LEFT){
        panelTR.setSize(200,200);
        panelTL.setSize(200,200);
        panelTL.add(in);
        panelTR.add(out);
    }
    if(dir == TDirection.MOVING_TO_RIGHT){
        panelTR.setSize(200,200);
        panelTL.setSize(200,200);
        panelTL.add(out);
        panelTR.add(in);
    }
    if(dir == TDirection.MOVING_TO_BOTTOM){
        panelBL.setSize(200,200);
        panelTL.setSize(200,200);
        panelBL.add(in);
        panelTL.add(out);
    }
    if(dir == TDirection.MOVING_TO_TOP){
        panelBL.setSize(200,200);
        panelTL.setSize(200,200);
        panelBL.add(out);
        panelTL.add(in);
    }
    root.remove(out);
    scrollPanel.setSize(in.getSize());
    innerPanel.setSize(in.getSize().width * 2, in.getSize().height);
    root.add(scrollPanel);
    scrollPanel.setLocation(x, y);
    if(speedWidthModifier == 0 && speedHeightModifier == 0){
        throw new NullPointerException("TDirection dir");
    }
    System.out.println(new Date());
            System.out.println("tlsize1: " + panelTL.getSize());

    (new Timer()).schedule(new TimerTask(){
        @Override
        public void run() {
            System.out.println("tlsize1: " + panelTL.getSize());
    System.out.println(new Date());

            Point viewport = scrollPanel.getViewport().getViewPosition();
            JViewport newViewport = scrollPanel.getViewport();

            double currentX = viewport.x;
            double currentY = viewport.y;   

            double speed = 50;

            double newX = currentX + (speed * speedWidthModifier);
            double newY = currentY + (speed * speedHeightModifier);

            newViewport.getViewPosition().x = (int)newX;
            newViewport.getViewPosition().y = (int)newY;

            if((xAtEnd != 0 && newX > xAtEnd) || (yAtEnd != 0 && newY > yAtEnd)){
                this.cancel();
            }

            root.repaint();
            System.out.println("tlsize2: " + panelTL.getSize());
        }

    }, 0,25);
}

/**
 * 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() {
    java.awt.GridBagConstraints gridBagConstraints;

    scrollPanel = new javax.swing.JScrollPane();
    innerPanel = new javax.swing.JPanel();
    panelTL = new javax.swing.JPanel();
    panelTR = new javax.swing.JPanel();
    panelBL = new javax.swing.JPanel();
    panelBR = new javax.swing.JPanel();
    jPanel1 = new javax.swing.JPanel();
    jPanel2 = new javax.swing.JPanel();

    setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);

    scrollPanel.setBorder(null);
    scrollPanel.setHorizontalScrollBarPolicy(javax.swing.ScrollPaneConstants.HORIZONTAL_SCROLLBAR_NEVER);
    scrollPanel.setVerticalScrollBarPolicy(javax.swing.ScrollPaneConstants.VERTICAL_SCROLLBAR_NEVER);

    innerPanel.setBackground(new java.awt.Color(255, 0, 153));
    innerPanel.setLayout(new java.awt.GridBagLayout());

    panelTL.setAutoscrolls(true);
    panelTL.setPreferredSize(new java.awt.Dimension(0, 0));

    javax.swing.GroupLayout panelTLLayout = new javax.swing.GroupLayout(panelTL);
    panelTL.setLayout(panelTLLayout);
    panelTLLayout.setHorizontalGroup(
        panelTLLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
        .addGap(0, 100, Short.MAX_VALUE)
    );
    panelTLLayout.setVerticalGroup(
        panelTLLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
        .addGap(0, 100, Short.MAX_VALUE)
    );

    gridBagConstraints = new java.awt.GridBagConstraints();
    gridBagConstraints.gridx = 0;
    gridBagConstraints.gridy = 0;
    innerPanel.add(panelTL, gridBagConstraints);

    panelTR.setPreferredSize(new java.awt.Dimension(0, 0));

    javax.swing.GroupLayout panelTRLayout = new javax.swing.GroupLayout(panelTR);
    panelTR.setLayout(panelTRLayout);
    panelTRLayout.setHorizontalGroup(
        panelTRLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
        .addGap(0, 100, Short.MAX_VALUE)
    );
    panelTRLayout.setVerticalGroup(
        panelTRLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
        .addGap(0, 100, Short.MAX_VALUE)
    );

    gridBagConstraints = new java.awt.GridBagConstraints();
    gridBagConstraints.gridx = 1;
    gridBagConstraints.gridy = 0;
    innerPanel.add(panelTR, gridBagConstraints);

    panelBL.setPreferredSize(new java.awt.Dimension(0, 0));

    javax.swing.GroupLayout panelBLLayout = new javax.swing.GroupLayout(panelBL);
    panelBL.setLayout(panelBLLayout);
    panelBLLayout.setHorizontalGroup(
        panelBLLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
        .addGap(0, 100, Short.MAX_VALUE)
    );
    panelBLLayout.setVerticalGroup(
        panelBLLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
        .addGap(0, 100, Short.MAX_VALUE)
    );

    gridBagConstraints = new java.awt.GridBagConstraints();
    gridBagConstraints.gridx = 0;
    gridBagConstraints.gridy = 1;
    innerPanel.add(panelBL, gridBagConstraints);

    panelBR.setBackground(new java.awt.Color(204, 0, 51));
    panelBR.setPreferredSize(new java.awt.Dimension(0, 0));

    javax.swing.GroupLayout panelBRLayout = new javax.swing.GroupLayout(panelBR);
    panelBR.setLayout(panelBRLayout);
    panelBRLayout.setHorizontalGroup(
        panelBRLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
        .addGap(0, 100, Short.MAX_VALUE)
    );
    panelBRLayout.setVerticalGroup(
        panelBRLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
        .addGap(0, 100, Short.MAX_VALUE)
    );

    gridBagConstraints = new java.awt.GridBagConstraints();
    gridBagConstraints.gridx = 1;
    gridBagConstraints.gridy = 1;
    innerPanel.add(panelBR, gridBagConstraints);

    scrollPanel.setViewportView(innerPanel);

    jPanel1.setBackground(new java.awt.Color(204, 153, 0));

    javax.swing.GroupLayout jPanel1Layout = new javax.swing.GroupLayout(jPanel1);
    jPanel1.setLayout(jPanel1Layout);
    jPanel1Layout.setHorizontalGroup(
        jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
        .addGap(0, 200, Short.MAX_VALUE)
    );
    jPanel1Layout.setVerticalGroup(
        jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
        .addGap(0, 200, Short.MAX_VALUE)
    );

    jPanel2.setBackground(new java.awt.Color(255, 255, 0));

    javax.swing.GroupLayout jPanel2Layout = new javax.swing.GroupLayout(jPanel2);
    jPanel2.setLayout(jPanel2Layout);
    jPanel2Layout.setHorizontalGroup(
        jPanel2Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
        .addGap(0, 200, Short.MAX_VALUE)
    );
    jPanel2Layout.setVerticalGroup(
        jPanel2Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
        .addGap(0, 200, Short.MAX_VALUE)
    );

    javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
    getContentPane().setLayout(layout);
    layout.setHorizontalGroup(
        layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
        .addGroup(layout.createSequentialGroup()
            .addComponent(scrollPanel, javax.swing.GroupLayout.PREFERRED_SIZE, 100, javax.swing.GroupLayout.PREFERRED_SIZE)
            .addGap(109, 109, 109)
            .addComponent(jPanel2, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
            .addGap(0, 90, Short.MAX_VALUE))
        .addGroup(javax.swing.GroupLayout.Alignment.TRAILING, layout.createSequentialGroup()
            .addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
            .addComponent(jPanel1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
            .addGap(78, 78, 78))
    );
    layout.setVerticalGroup(
        layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
        .addGroup(layout.createSequentialGroup()
            .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                .addComponent(scrollPanel, javax.swing.GroupLayout.PREFERRED_SIZE, 100, javax.swing.GroupLayout.PREFERRED_SIZE)
                .addComponent(jPanel2, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
            .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
            .addComponent(jPanel1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
            .addGap(35, 35, 35))
    );

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

/**
 * @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(Transistor.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
    } catch (InstantiationException ex) {
        java.util.logging.Logger.getLogger(Transistor.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
    } catch (IllegalAccessException ex) {
        java.util.logging.Logger.getLogger(Transistor.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
    } catch (javax.swing.UnsupportedLookAndFeelException ex) {
        java.util.logging.Logger.getLogger(Transistor.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 Transistor().setVisible(true);
        }
    });
}
// Variables declaration - do not modify                     
private javax.swing.JPanel innerPanel;
private javax.swing.JPanel jPanel1;
private javax.swing.JPanel jPanel2;
private javax.swing.JPanel panelBL;
private javax.swing.JPanel panelBR;
private javax.swing.JPanel panelTL;
private javax.swing.JPanel panelTR;
private javax.swing.JScrollPane scrollPanel;
// End of variables declaration                   
}

是的，我知道该类扩展了JFrame，我只是将其用于测试目的. (我也不知道如何解决此页面上的缩进)

Yes, I know the class extends JFrame, I'm just using that for testing purposes. (I'm also not sure how to fix the indenting on this page)

推荐答案

Swing中的组件通常在布局管理器的控制下.要实现您想做的事情，实际上最好创建一个动画布局管理器.

Components in Swing are generally under the control of a layout manager. To achieve what you are trying to do, you would actually be better of creating an animated layout manager.

我建议您看看...

  • The Universal Tween Engine
  • Sliding layout

您还可以查看使用Gridbag布局时的动画.

(无耻的插头)

You could also take a look at Animations when using Gridbag Layout. (shameless plug)

这篇关于滑动任何JPanel的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！

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