Java Swing实现的定制TextField功能示例

本文实例讲述了java swing实现的定制textfield功能。分享给大家供大家参考，具体如下：

先来看看运行效果：

具体代码如下：

package themedemo;
import java.awt.basicstroke;
import java.awt.borderlayout;
import java.awt.color;
import java.awt.graphics2d;
import java.awt.gridlayout;
import java.awt.insets;
import java.awt.renderinghints;
import java.util.map;
import javax.swing.borderfactory;
import javax.swing.jcomponent;
import javax.swing.jframe;
import javax.swing.jpanel;
import javax.swing.jtextfield;
import javax.swing.painter;
import javax.swing.swingutilities;
import javax.swing.uidefaults;
import javax.swing.uimanager;
import javax.swing.windowconstants;
public class textfieldskindemo {
  public static void main(string[] args) {
    swingutilities.invokelater(new runnable() {
      public void run() {
        for (uimanager.lookandfeelinfo laf : uimanager
            .getinstalledlookandfeels()) {
          if ("nimbus".equals(laf.getname())) {
            try {
              uimanager.setlookandfeel(laf.getclassname());
            } catch (exception e) {
              e.printstacktrace();
            }
          }
        }
        for (map.entry<object, object> entry : uimanager
            .getlookandfeeldefaults().entryset()) {
          if ((entry.getkey().tostring()).startswith("textfield")) {
            system.out.println(entry.getkey() + " = "
                + entry.getvalue());
          }
        }
        jframe frame = new jframe("www.jb51.net - textfield skining demo");
        frame.setdefaultcloseoperation(windowconstants.exit_on_close);
        frame.getcontentpane().setlayout(new borderlayout());
        jpanel panel = new jpanel(new gridlayout(0, 1, 20, 20));
        panel.setborder(borderfactory.createemptyborder(20, 20, 20, 20));
        panel.setbackground(color.darkgray);
        uidefaults textfielddefaults = new uidefaults();
        textfielddefaults.put("textfield.contentmargins", new insets(6,
            6, 6, 6));
        textfielddefaults.put("textfield[selected].textforeground",
            color.white);
        textfielddefaults.put("textfield.backgroundpainter",
            new painter<jcomponent>() {
              public void paint(graphics2d g, jcomponent c,
                  int w, int h) {
                g.setrenderinghint(
                    renderinghints.key_antialiasing,
                    renderinghints.value_antialias_on);
                g.setstroke(new basicstroke(2f));
                g.setcolor(color.white);
                g.fillroundrect(0, 0, w - 2, h - 2, 8, 8);
              }
            });
        textfielddefaults.put("textfield.borderpainter",
            new painter<jcomponent>() {
              public void paint(graphics2d g, jcomponent c,
                  int w, int h) {
                g.setrenderinghint(
                    renderinghints.key_antialiasing,
                    renderinghints.value_antialias_on);
                g.setstroke(new basicstroke(2f));
                g.setcolor(color.light_gray);
                g.drawroundrect(0, 0, w - 2, h - 2, 8, 8);
              }
            });
        jtextfield textfield = new jtextfield(15);
        panel.add(textfield);
        textfield.putclientproperty("nimbus.overrides",
            textfielddefaults);
        textfield.putclientproperty("nimbus.overrides.inheritdefaults",
            false);
        // add a normal themed slider for comparison
        jtextfield normaltextfield = new jtextfield(15);
        panel.add(normaltextfield);
        frame.getcontentpane().add(panel, borderlayout.center);
        frame.pack();
        frame.setlocationrelativeto(null);
        frame.setvisible(true);
      }
    });
  }
}

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