ticker.java

public class ticker extends Applet implements Runnable {

/*=======================
o Variable Declarations o =======================*/
final static int MAX_SIZE = 100; final static Cursor HAND = new Cursor(Cursor.HAND_CURSOR); final static Cursor DEFAULT = new Cursor(Cursor.DEFAULT_CURSOR);

boolean isMoving; int xx; // text location int ntext; // number of text int text_width; // text width int width; // applet width int height; // applet height int delay; // time delay int fontsize; // size of font int selected; // selected caption

String[] s; // captions String[] url; // urls String[] target; // targets

Font font; // font face FontMetrics fm; // font metrics Thread runner; Color fgcolor, bgcolor, accolor, bdcolor;

Image offscrImg; // double buffer image Graphics offscr; // double buffer graphics

/*===========================
o Set Font and Color Method
o ===========================*/

public void setFont() {

String fontface = getParameter("fontface"); if (fontface == null)
fontface = "Times Roman";
try { fontsize = Integer.parseInt(getParameter("fontsize")); } catch (Exception e) { fontsize = 12; }

String fontstyle = getParameter("fontstyle"); if (fontstyle == null || fontstyle.equals("plain"))

font = new Font(fontface, Font.PLAIN, fontsize);
else if (fontstyle.equals("bold"))
font = new Font(fontface, Font.BOLD, fontsize);
else
font = new Font(fontface, Font.ITALIC, fontsize);
fm = offscr.getFontMetrics(font);
}

public void setColor() {

String c1 = getParameter("bgcolor"); String c2 = getParameter("fgcolor"); String c3 = getParameter("accolor"); String c4 = getParameter("bdcolor");

if (c1 == null) c1 = "255,255,255"; if (c2 == null) c2 = "000,000,000"; if (c3 == null) c3 = "255,000,000"; if (c4 == null) c4 = "150,150,150";

bgcolor = new Color(Integer.parseInt(c1.substring(0,3)),Integer.parseInt(c1.substring(4,7)), Integer.parseInt(c1.substring(8,11)));

fgcolor = new Color(Integer.parseInt(c2.substring(0,3)),Integer.parseInt(c2.substring(4,7)), Integer.parseInt(c2.substring(8,11)));

accolor = new Color(Integer.parseInt(c3.substring(0,3)),Integer.parseInt(c3.substring(4,7)), Integer.parseInt(c3.substring(8,11)));

bdcolor = new Color(Integer.parseInt(c4.substring(0,3)),Integer.parseInt(c4.substring(4,7)), Integer.parseInt(c4.substring(8,11)));

}

/*===================

o Initialize Method o ===================*/
public void init() {
isMoving = true; runner = new Thread(this); width = getSize().width; height = getSize().height; s = new String[MAX_SIZE]; url = new String[MAX_SIZE]; target = new String[MAX_SIZE];

offscrImg = createImage(width, height); offscr = offscrImg.getGraphics();

runner.start(); setFont(); setColor(); try { delay = Integer.parseInt(getParameter("delay")); } catch (Exception e) { delay = 10; }

String text; ntext = text_width = xx = 0; while ((text = getParameter("caption" + ntext)) != null) {

s[ntext] = text; url[ntext] = getParameter("url" + ntext); target[ntext] = getParameter("target" + ntext); if (target[ntext] == null)
target[ntext] = "_blank";
text_width += fm.stringWidth(s[ntext]) + 20; ntext++;
} setSize(width,height); offscr.setFont(font);
}

/*=========================

o Paint and Update Method o =========================*/
public void paint(Graphics g) {
int c = 0; int i = xx; int h = (height + fontsize) / 2; selected = -1; boolean f = false;

while (s[c] != null && i < width) {

int w = fm.stringWidth(s[c]); offscr.setColor(fgcolor); offscr.drawString(s[c], i, h);

i += w + 20; if (++c >= ntext)

c = 0;
} if (f)
setCursor(HAND);
else
setCursor(DEFAULT);
g.drawImage(offscrImg, 0, 0, this); offscr.clearRect(0,0, getSize().width, getSize().height); offscr.setColor(bgcolor); offscr.fillRect(0, 0, getSize().width, getSize().height); offscr.setColor(bdcolor); offscr.drawRect(0, 0, getSize().width-1, getSize().height-1);

if (isMoving)

xx--;
if (i < -text_width)
xx = 0;
}
public void update(Graphics g) {
paint(g);
}

/*===============

o Thread Method o ===============*/
public void run() {
while(true) {
try { runner.sleep(delay); } catch (Exception e) { } repaint();
}
}

}

Immutable page (last edited 2007-03-27 01:27:04 by EarlCabrales)

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