我想在NetBeans中将Nimbus UI的进度条颜色从默认橙色更改为绿色。
我添加了以下行
for (javax.swing.UIManager.LookAndFeelInfo info : javax.swing.UIManager.getInstalledLookAndFeels()) {
if ("Nimbus".equals(info.getName())) {
UIDefaults defaults= UIManager.getDefaults();
javax.swing.UIManager.setLookAndFeel(info.getClassName());
UIManager.getLookAndFeelDefaults().put("ProgressBar[Enabled+Finished].foregroundPainter", Color.GREEN);
UIManager.getLookAndFeelDefaults().put("ProgressBar[Enabled+Finished].backgroundPainter", Color.GREEN);
break;
}
}
这不做任何更改。对代码或任何其他解决方法的任何更正?
答案 0 :(得分:3)
Nimbus不像其他外观那样运作(对我们来说是这样)。
通常你应该使用ColorUIResource
,但是Nimbus更喜欢使用Painter
s,例如......
import java.awt.Color;
import java.awt.EventQueue;
import java.awt.GradientPaint;
import java.awt.Graphics2D;
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import java.awt.RenderingHints;
import javax.swing.JFrame;
import javax.swing.JProgressBar;
import javax.swing.Painter;
import javax.swing.UIManager;
import javax.swing.UnsupportedLookAndFeelException;
import javax.swing.plaf.ColorUIResource;
public class TestNimbus {
public static void main(String[] args) {
new TestNimbus();
}
public TestNimbus() {
EventQueue.invokeLater(new Runnable() {
@Override
public void run() {
try {
UIManager.setLookAndFeel("com.sun.java.swing.plaf.nimbus.NimbusLookAndFeel");
ProgressPainter painter = new ProgressPainter(Color.WHITE, Color.GREEN);
UIManager.getLookAndFeelDefaults().put("ProgressBar[Enabled+Finished].foregroundPainter", painter);
//UIManager.getLookAndFeelDefaults().put("ProgressBar[Enabled+Finished].backgroundPainter", painter);
} catch (ClassNotFoundException | InstantiationException | IllegalAccessException | UnsupportedLookAndFeelException ex) {
}
JFrame frame = new JFrame("Testing");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setLayout(new GridBagLayout());
GridBagConstraints gbc = new GridBagConstraints();
gbc.gridwidth = GridBagConstraints.REMAINDER;
JProgressBar pb = new JProgressBar();
frame.add(pb, gbc);
pb = new JProgressBar();
pb.setValue(50);
frame.add(pb, gbc);
pb = new JProgressBar();
pb.setValue(100);
frame.add(pb, gbc);
frame.pack();
frame.setLocationRelativeTo(null);
frame.setVisible(true);
}
});
}
public class ProgressPainter implements Painter {
private Color light, dark;
private GradientPaint gradPaint;
public ProgressPainter(Color light, Color dark) {
this.light = light;
this.dark = dark;
}
@Override
public void paint(Graphics2D g, Object c, int w, int h) {
g.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
gradPaint = new GradientPaint((w / 2.0f), 0, light, (w / 2.0f), (h / 2.0f), dark, true);
g.setPaint(gradPaint);
g.fillRect(2, 2, (w - 5), (h - 5));
Color outline = new Color(0, 85, 0);
g.setColor(outline);
g.drawRect(2, 2, (w - 5), (h - 5));
Color trans = new Color(outline.getRed(), outline.getGreen(), outline.getBlue(), 100);
g.setColor(trans);
g.drawRect(1, 1, (w - 3), (h - 3));
}
}
}
我从Custom Painter on JProgressBar偷走了这位画家,所以相信
答案 1 :(得分:2)
这可以帮到你:
private void paintJProgressBar(Color color, JProgressBar progressBar) {
UIDefaults defaults = new UIDefaults();
Painter painter = new MyPainter(color);
defaults.put("ProgressBar[Enabled].foregroundPainter", painter);
defaults.put("ProgressBar[Enabled+Finished].foregroundPainter", painter);
progressBar.putClientProperty("Nimbus.Overrides.InheritDefaults", Boolean.TRUE);
progressBar.putClientProperty("Nimbus.Overrides", defaults);
}
class MyPainter extends AbstractRegionPainter {
private Color fillColor;
public MyPainter(Color color) {
fillColor = new Color(
color.getRed(), color.getGreen(), color.getBlue(), 220);
}
@Override
public void doPaint(Graphics2D g, JComponent c, int width,
int height, Object[] extendedCacheKeys) {
g.setColor(fillColor);
g.fillRect(3, 3, width - 6, height - 6);
}
@Override
public PaintContext getPaintContext() {
return null;
}
}
答案 2 :(得分:1)
快速解决方案:如果您不编写自己的Painter,请更改所有组件的nimbusOrange
颜色。
UIDefaults defaults = UIManager.getLookAndFeelDefaults();
NimbusLookAndFeel localNimbusLookAndFeel = (NimbusLookAndFeel)UIManager.getLookAndFeel();
Color derivedColor = localNimbusLookAndFeel.getDerivedColor("nimbusBase", 0.03054375F, -0.3835404F, -0.0980392F, 0, true);
defaults.put("nimbusOrange",derivedColor);