Java PropertyEditor-如何强制属性编辑器重新绘制（paintValue）

Question

I have created a property editor : 我已经创建了一个属性编辑器：

import ca.cmhc.ifm.portal.dataservice.dataobjects.location.Region;
import java.awt.Color;
import java.awt.Component;
import java.awt.Graphics;
import java.awt.Rectangle;
import java.beans.PropertyEditorSupport;
import java.util.ArrayList;
import javax.swing.BorderFactory;
import javax.swing.JLabel;
import org.openide.explorer.propertysheet.ExPropertyEditor;
import org.openide.explorer.propertysheet.PropertyEnv;

/**
 *
 * @author lbard
 */
public class MessagePropertyEditor extends PropertyEditorSupport implements ExPropertyEditor {

    private String localValue = "";
    private PropertyEnv env;
    private ArrayList<Region> regions;
    private String messageText = "";
    private JLabel renderer;

    public MessagePropertyEditor(String messageText) {
        super();
        this.messageText = messageText;
        renderer = new JLabel(this.messageText);
    }

    @Override
    public String getAsText() {
        return "";
    }


    @Override
    public boolean isPaintable() {
        return true;
    }

    @Override
    public void paintValue(final Graphics g, final Rectangle r)
    {
        renderer.setBorder(BorderFactory.createEmptyBorder(0, 3, 0, 0));
        renderer.setForeground(Color.blue);
        //renderer.setText("<html><i>" + this.messageText.replace("\n", " ") + "</i>");
        renderer.setText(this.messageText.replace("\n", " "));
        renderer.setBounds(r);
        renderer.paint(g);
    }

    @Override
    public Component getCustomEditor() {
        MessageCustomEditor panel = new MessageCustomEditor(messageText);
        return panel;
    }

    @Override
    public boolean supportsCustomEditor() {
        return true;
    }

    public void attachEnv(PropertyEnv env) {
        this.env = env;
    }
}

I am trying to find a way to force a repaint of this component. 我试图找到一种方法来强制对该组件进行重新粉刷。 The objective in the end is to have a timer change the background color at specific intervals, making the background flash. 最后的目的是让计时器以特定的间隔更改背景颜色，使背景闪烁。 The PropertyEditor does not seem to have a "repaint" or a "invalidate" method, so I was wondering how to get it to repaint. PropertyEditor似乎没有“重新绘制”或“无效”方法，因此我想知道如何使它重新绘制。

I have tried to invalidate/call repaint on the JLabel used to create the graphics, but it does not call paintValue() 我试图使用于创建图形的JLabel无效/调用重绘，但是它不调用paintValue()

I have also tried to call the method directly, but I do not know where to get Graphics and the Rectangle needed as parameters.... 我也尝试过直接调用该方法，但是我不知道从哪里获取Graphics和Rectangle作为参数。

Anyone has an idea on how to force the PropertyEditor to repaint? 任何人都有关于如何强制PropertyEditor重新绘制的想法？

Thanks 谢谢

Answer 1

Do you want to repaint the property editor, or the component that represents it on the screen? 您是否要重新绘制属性编辑器或在屏幕上表示它的组件？ In the latter case, try editor.getCustomEditor().repaint() . 在后一种情况下，请尝试editor.getCustomEditor().repaint() 。

Java PropertyEditor-如何强制属性编辑器重新绘制（paintValue）

问题描述

1 个解决方案

解决方案1
0 2014-01-06 20:00:26

Java PropertyEditor-如何强制属性编辑器重新绘制（paintValue）

问题描述

1 个解决方案

解决方案1 0 2014-01-06 20:00:26

解决方案1
0 2014-01-06 20:00:26