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P.Ravichristy
Web programming guidence
4 Answer(s)      5 years and 9 months ago
Posted in : Applet



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January 5, 2009 at 12:44 AM


Hi friend,

import java.awt.*;
import javax.swing.*;
import java.awt.Rectangle;
import java.net.URL;

import javax.swing.plaf.ComponentUI;
import javax.swing.plaf.metal.MetalButtonUI;

public class LayoutDemo extends JButton {
private static final String uiString = "LinkButtonUI";

public static final int ALWAYS_UNDERLINE = 0;
public static final int HOVER_UNDERLINE = 1;
public static final int NEVER_UNDERLINE = 2;
public static final int SYSTEM_DEFAULT = 3;

private int linkBehavior;

private Color linkColor;

private Color colorPressed;

private Color visitedLinkColor;

private Color disabledLinkColor;

private URL buttonURL;

private Action defaultAction;

private boolean isLinkVisited;

public static void main(String[] a) {
JFrame frame = new JFrame();
frame.getContentPane().setLayout(new GridLayout(0,2));
frame.getContentPane().add(new LayoutDemo("www.roseindia.net"));
frame.getContentPane().add(new LayoutDemo("www.roseindia.net/java/"));
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setSize(600, 200);
frame.setVisible(true);
}

public LayoutDemo() {
this(null, null, null);
}

public LayoutDemo(Action action) {
this();
setAction(action);
}

public LayoutDemo(Icon icon) {
this(null, icon, null);
}

public LayoutDemo(String s) {
this(s, null, null);
}

public LayoutDemo(URL url) {
this(null, null, url);
}

public LayoutDemo(String s, URL url) {
this(s, null, url);
}

public LayoutDemo(Icon icon, URL url) {
this(null, icon, url);
}

public LayoutDemo(String text, Icon icon, URL url) {
super(text, icon);
linkBehavior = SYSTEM_DEFAULT;
linkColor = Color.blue;
colorPressed = Color.red;
visitedLinkColor = new Color(128, 0, 128);
if (text == null && url != null)
setText(url.toExternalForm());
setLinkURL(url);
setCursor(Cursor.getPredefinedCursor(12));
setBorderPainted(false);
setContentAreaFilled(false);
setRolloverEnabled(true);
addActionListener(defaultAction);
}

public void updateUI() {
setUI(BasicLinkButtonUI.createUI(this));
}


January 5, 2009 at 12:46 AM


private void setDefault() {
UIManager.getDefaults().put("LinkButtonUI", "BasicLinkButtonUI");
}

public String getUIClassID() {
return "LinkButtonUI";
}

protected void setupToolTipText() {
String tip = null;
if (buttonURL != null)
tip = buttonURL.toExternalForm();
setToolTipText(tip);
}

public void setLinkBehavior(int bnew) {
checkLinkBehaviour(bnew);
int old = linkBehavior;
linkBehavior = bnew;
firePropertyChange("linkBehavior", old, bnew);
repaint();
}

private void checkLinkBehaviour(int beha) {
if (beha != ALWAYS_UNDERLINE && beha != HOVER_UNDERLINE
&& beha != NEVER_UNDERLINE && beha != SYSTEM_DEFAULT)
throw new IllegalArgumentException("Not a legal LinkBehavior");
else
return;
}

public int getLinkBehavior() {
return linkBehavior;
}

public void setLinkColor(Color color) {
Color colorOld = linkColor;
linkColor = color;
firePropertyChange("linkColor", colorOld, color);
repaint();
}

public Color getLinkColor() {
return linkColor;
}

public void setActiveLinkColor(Color colorNew) {
Color colorOld = colorPressed;
colorPressed = colorNew;
firePropertyChange("activeLinkColor", colorOld, colorNew);
repaint();
}

public Color getActiveLinkColor() {
return colorPressed;
}

public void setDisabledLinkColor(Color color) {
Color colorOld = disabledLinkColor;
disabledLinkColor = color;
firePropertyChange("disabledLinkColor", colorOld, color);
if (!isEnabled())
repaint();
}

public Color getDisabledLinkColor() {
return disabledLinkColor;
}

public void setVisitedLinkColor(Color colorNew) {
Color colorOld = visitedLinkColor;
visitedLinkColor = colorNew;
firePropertyChange("visitedLinkColor", colorOld, colorNew);
repaint();
}

public Color getVisitedLinkColor() {
return visitedLinkColor;
}

public URL getLinkURL() {
return buttonURL;
}

public void setLinkURL(URL url) {
URL urlOld = buttonURL;
buttonURL = url;
setupToolTipText();
firePropertyChange("linkURL", urlOld, url);
revalidate();
repaint();
}

public void setLinkVisited(boolean flagNew) {
boolean flagOld = isLinkVisited;
isLinkVisited = flagNew;
firePropertyChange("linkVisited", flagOld, flagNew);
repaint();
}

public boolean isLinkVisited() {
return isLinkVisited;
}

public void setDefaultAction(Action actionNew) {
Action actionOld = defaultAction;
defaultAction = actionNew;
firePropertyChange("defaultAction", actionOld, actionNew);
}

public Action getDefaultAction() {
return defaultAction;
}


January 5, 2009 at 12:47 AM


protected String paramString() {
String str;
if (linkBehavior == ALWAYS_UNDERLINE)
str = "ALWAYS_UNDERLINE";
else if (linkBehavior == HOVER_UNDERLINE)
str = "HOVER_UNDERLINE";
else if (linkBehavior == NEVER_UNDERLINE)
str = "NEVER_UNDERLINE";
else
str = "SYSTEM_DEFAULT";
String colorStr = linkColor == null ? "" : linkColor.toString();
String colorPressStr = colorPressed == null ? "" : colorPressed
.toString();
String disabledLinkColorStr = disabledLinkColor == null ? ""
: disabledLinkColor.toString();
String visitedLinkColorStr = visitedLinkColor == null ? ""
: visitedLinkColor.toString();
String buttonURLStr = buttonURL == null ? "" : buttonURL.toString();
String isLinkVisitedStr = isLinkVisited ? "true" : "false";
return super.paramString() + ",linkBehavior=" + str + ",linkURL="
+ buttonURLStr + ",linkColor=" + colorStr + ",activeLinkColor="
+ colorPressStr + ",disabledLinkColor=" + disabledLinkColorStr
+ ",visitedLinkColor=" + visitedLinkColorStr
+ ",linkvisitedString=" + isLinkVisitedStr;
}
}

class BasicLinkButtonUI extends MetalButtonUI {
private static final BasicLinkButtonUI ui = new BasicLinkButtonUI();

public BasicLinkButtonUI() {
}

public static ComponentUI createUI(JComponent jcomponent) {
return ui;
}

protected void paintText(Graphics g, JComponent com, Rectangle rect,
String s) {
LayoutDemo bn = (LayoutDemo) com;
ButtonModel bnModel = bn.getModel();
Color color = bn.getForeground();
Object obj = null;
if (bnModel.isEnabled()) {
if (bnModel.isPressed())
bn.setForeground(bn.getActiveLinkColor());
else if (bn.isLinkVisited())
bn.setForeground(bn.getVisitedLinkColor());

else
bn.setForeground(bn.getLinkColor());
} else {
if (bn.getDisabledLinkColor() != null)
bn.setForeground(bn.getDisabledLinkColor());
}
super.paintText(g, com, rect, s);
int behaviour = bn.getLinkBehavior();
boolean drawLine = false;
if (behaviour == LayoutDemo.HOVER_UNDERLINE) {
if (bnModel.isRollover())
drawLine = true;
} else if (behaviour == LayoutDemo.ALWAYS_UNDERLINE || behaviour == LayoutDemo.SYSTEM_DEFAULT)
drawLine = true;
if (!drawLine)
return;
FontMetrics fm = g.getFontMetrics();
int x = rect.x + getTextShiftOffset();
int y = (rect.y + fm.getAscent() + fm.getDescent() + getTextShiftOffset()) - 1;
if (bnModel.isEnabled()) {
g.setColor(bn.getForeground());
g.drawLine(x, y, (x + rect.width) - 1, y);
} else {
g.setColor(bn.getBackground().brighter());
g.drawLine(x, y, (x + rect.width) - 1, y);
}
}
}
----------------------------
Visit for more information:

http://www.roseindia.net/java/example/java/swing/

Thanks.


January 11, 2009 at 2:19 AM


Dear Sir/Madam
Received the programee.
Thank you very much for the programme.
When I run the programme, two out put displayed.
thanks once again for the programme.

Now my main wish, is to design a web site and host with the help of Roseindia.net. Can I please be helped with the free study meterial as and how to design and the proceedure for hosting.

I am very much thankfull to you for the favor received.

Yours,
P.Ravichristy


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