Java EE (Java Enterprise Edition) General Discussion

design of the background and text colors for
HTML pages. Provides an easy interface for selecting the colors and
to In my HTML document . so i can't able to getting text colors...
please help me



import java.awt.*;
class Selector extends Panel
{
ColorChooser app;

Label laCol = new Label();
Scrollbar sbCol = new Scrollbar(Scrollbar.HORIZONTAL, 255, 8, 0, 255);
TextField tfDec = new TextField("255", 3);

TextField tfHex = new TextField("FF", 2);

Selector(ColorChooser ap, String label, Color col)
{
app = ap;
laCol.setText(label);
GridBagLayout gbLay = new GridBagLayout();
GridBagConstraints gbCon = new GridBagConstraints();
setLayout(gbLay);
gbCon.anchor = GridBagConstraints.WEST;
gbCon.gridwidth = GridBagConstraints.REMAINDER;
gbCon.weightx = 1.0;
gbLay.setConstraints(laCol, gbCon);
add(laCol);
gbCon.fill = GridBagConstraints.BOTH;
gbCon.gridwidth = 1;
gbLay.setConstraints(sbCol, gbCon);
sbCol.setBackground(col);
add(sbCol);
gbCon.fill = GridBagConstraints.NONE;
gbCon.insets = new Insets(5, 5, 5, 5);
gbCon.weightx = 0.0;
gbLay.setConstraints(tfHex, gbCon);
add(tfHex);
gbLay.setConstraints(tfDec, gbCon);
add(tfDec);
setBackground(Color.lightGray);
}

public boolean handleEvent(Event ev)
{
if (ev.target == sbCol)
{
int val = sbCol.getValue();
if (ev.id == Event.MOUSE_MOVE ||
ev.id == Event.MOUSE_ENTER ||
ev.id == Event.MOUSE_EXIT)
return true;
tfHex.setText(app.convHex(val));
tfDec.setText(Integer.toString(val));
return true;
}
else
return super.handleEvent(ev);

}


public boolean action(Event ev, Object ob)
{
try
{
int value = Integer.parseInt((String)ob,
(ev.target == tfDec)? 10 : 16);
if (value >= 0 && value <= 255)
sbCol.setValue(value);
}
catch (NumberFormatException e)
{
}
return postEvent(new Event(sbCol, Event.SCROLL_ABSOLUTE, null));

}

void setValue(int value)
{
sbCol.setValue(value);
postEvent(new Event(sbCol, Event.SCROLL_ABSOLUTE, null));

}
}


interface CommonVars
{
static int BGCOLOR = 0;
static int TEXT = 1;
static int LINK = 2;
static int VLINK = 3;
static int ALINK = 4;

static int RED = 0;
static int GREEN = 1;
static int BLUE = 2;
}


class Example extends Panel implements CommonVars
{
ColorChooser app;

Color[] colArr = new Color[5];

String[] msg = {"" , "This is an example of normal text",
"This is a new hyperlink",
"This is a visited hyperlink",
"This is an active hyperlink"};




public void paint(Graphics g)
{
int index;
for (index = BGCOLOR ; index <= ALINK ; index++)
colArr[index] = new Color(app.colors[index][RED],
app.colors[index][GREEN],
app.colors[index][BLUE]);

Font font = new Font("TimesRoman", Font.PLAIN, 20);
FontMetrics fm = g.getFontMetrics(font);
int fnHeight = fm.getHeight();
Dimension dim = size();
g.setColor(colArr[BGCOLOR]);
g.fillRect(0, 0, dim.width, dim.height);

if (app.img != null && app.cbCol.getState())

{
int imWidth = app.img.getWidth();
int imHeight = app.img.getHeight();
if (imWidth > 0 && imHeight > 0)
for (int x = 0 ; x < dim.width ; x += imWidth)
for (int y = 0 ; y < dim.height ;
y += imHeight)
g.drawImage(app.img, x,y, this);
else
g.drawImage(app.img, 0, 0, this);

}
g.setFont(font);
for (index = TEXT ; index <= ALINK ; index++)

{
g.setColor(colArr[index]);
g.drawString(msg[index],
(dim.width - fm.stringWidth(msg[index]))
/ 2,
index * ((dim.height - 4 * fnHeight) / 5
+ fnHeight));
}
}
}



public class ColorChooser extends java.applet.Applet implements CommonVars
{
Label laOpt = new Label("ColorChooser 1.1");
Choice chTyp = new Choice();
Selector[] selArr = new Selector[3];
Checkbox cbCol = new Checkbox("Background URL:");
TextField tfImg = new TextField(80);
TextArea taTag = new TextArea(3, 50);
Example paExa = new Example(this);

int[][] colors = {{255,255,255},{0,0,0},{255,0,0},{255,184,115},{200,200,200}};

int actual = BGCOLOR;
Image img = null;

public void init()
{
taTag.setEditable(false);
selArr[RED] = new Selector(this, "Red:", Color.red);
selArr[GREEN] = new Selector(this, "Green:", Color.green);
selArr[BLUE] = new Selector(this, "Blue:", Color.blue);
chTyp.addItem("Background color");
chTyp.addItem("Normal text color");
chTyp.addItem("Hyperlink color");
chTyp.addItem("Visited hyperlink color");
chTyp.addItem("Active hyperlink color");

GridBagLayout gbLay = new GridBagLayout();
GridBagConstraints gbCon = new GridBagConstraints();
setLayout(gbLay);

gbCon.fill = GridBagConstraints.BOTH;
gbLay.setConstraints(laOpt, gbCon);
add(laOpt);

gbCon.gridwidth = GridBagConstraints.REMAINDER;
gbCon.weightx = 1.0;
gbLay.setConstraints(chTyp, gbCon);
add(chTyp);

gbCon.fill = GridBagConstraints.BOTH;
gbCon.weightx = 0.0;
for (int index = RED ; index <= BLUE ; index++)
{
gbLay.setConstraints(selArr[index], gbCon);
add(selArr[index]);
}

gbCon.fill = GridBagConstraints.HORIZONTAL;
gbCon.gridwidth = 1;
gbCon.insets = new Insets(5, 0, 5, 5);
gbLay.setConstraints(cbCol, gbCon);
cbCol.setBackground(Color.lightGray);
add(cbCol);

gbCon.gridwidth = GridBagConstraints.REMAINDER;
gbLay.setConstraints(tfImg, gbCon);
add(tfImg);

gbLay.setConstraints(taTag, gbCon);
add(taTag);

gbCon.fill = GridBagConstraints.BOTH;
gbCon.weighty = 1.0;
gbLay.setConstraints(paExa, gbCon);
add(paExa);

setBackground(Color.lightGray);
}


public Insets insets()
{
return new Insets(10, 10, 10, 10);
}


public boolean action(Event ev, Object ob)
{
if (ev.target == chTyp)

{
int sel = chTyp.getSelectedIndex();
for (int index = RED ; index <= BLUE ; index++)
{
colors[actual][index] = selArr[index].getValue();
selArr[index].setValue(colors[sel][index]);
}
actual = sel;
repaint();
return true;
}
else if (ev.target == cbCol)

{
if (cbCol.getState() && img == null)
cbCol.setState(false);

repaint();
return true;
}
else if (ev.target == tfImg)

{
img = getImage(getDocumentBase(), tfImg.getText());
cbCol.setState(img != null);
repaint();
return true;
}
return false;
}



public void paint(Graphics g)
{
int sel = chTyp.getSelectedIndex();
for (int index = RED ; index <= BLUE ; index++)
colors[sel][index] = selArr[index].getValue();

String tag = "<BODY BGCOLOR=" + stdHex(colors[BGCOLOR])
+ " TEXT=" + stdHex(colors[TEXT]) + "\n"
+ " LINK=" + stdHex(colors[LINK])
+ " VLINK=" + stdHex(colors[VLINK])
+ " ALINK=" + stdHex(colors[ALINK]);
if (cbCol.getState())
tag += "\nBACKGROUND=\"" + tfImg.getText() + "\"";
tag += ">";
taTag.setText(tag);
paExa.repaint();
}


static String convHex(int value)

{
String aux = Integer.toString(value,16).toUpperCase();
if (aux.length() == 1)
aux = "0" + aux;
return aux;
}



static String stdHex(int[] rgb)

{
return "#" + convHex(rgb[RED]) + convHex(rgb[GREEN])
+ convHex(rgb[BLUE]);
}


public String getAppletInfo()
{
return "ColorChooser ";
}
}