//
// Colour selector functions.
//
// Author: PTH, QWD
// Date: 220609
// Version: alpha 0.1
//
// ----------------------------------------------
var red0;
var green0;
var blue0;
red0 = "ff";
green0 = "ff";
blue0 = "ff";
//------------------------------------------------
function handleCol (event, inner, curs, bgdef, form_id, fval, x0, xwid, pre_col, post_col)
{
var w = document.getElementById(inner);
var w1 = document.getElementById(curs);
var f1 = document.getElementById(form_id);
var s;
if (window.event) {
x = window.event.clientX + document.documentElement.scrollLeft
+ document.body.scrollLeft;
y = window.event.clientY + document.documentElement.scrollTop +
+ document.body.scrollTop;
}
else {
x = event.clientX + window.scrollX;
y = event.clientY + window.scrollY;
}
fr = (256.0*(x-x0)/xwid);
col0 = parseInt(fr, 10).toString(16);
if (fr < 16)
col0 = '0'+col0;
col = pre_col + col0 + post_col;
if (pre_col == "#")
{
red0 = col0;
}
else if (pre_col == "#00")
{
green0 = col0;
}
else
{
blue0 = col0;
}
w.style.backgroundColor = bgdef;
w1.style.left = (x-x0);
w.style.backgroundColor = col;
rgb = red0+green0+blue0;
palcol = '#'+rgb;
f1.elements[fval].value = palcol;
f1.elements[fval].style.backgroundColor = palcol;
f1.elements[fval].style.color = '#'+(0xffffff-parseInt(rgb, 16)).toString(16);
return false;
}
//------------------------------------------------
function handleColourClick (form_id, fval, col)
{
var f1 = document.getElementById(form_id);
// document.write (form_id + ", " + fval + ", " + col);
f1.elements[fval].value = '#' + col;
f1.elements[fval].style.backgroundColor = '#' + col;
return false;
}
//-----------------------------------------------------------------------------
var globalCursorPos; // global variabe to keep track of where the cursor was
//sets the global variable to keep track of the cursor position
function setCursorPos(form, taid) {
var myForm = document.getElementById(form);
var myTextArea = myForm.elements[taid]; // getElementById(taid);
// document.write ("
form = " + form + " tid = " + taid + " ta = " + myTextArea.value.length +"");
globalCursorPos = getCursorPos(myTextArea); // myForm.myTextArea);
// document.write ("
curs = " + globalCursorPos );
}
//This function returns the index of the cursor location in
//the value of the input text element
//It is important to make sure that the sWeirdString variable contains
//a set of characters that will not be encountered normally in your
//text
function getCursorPos(textElement) {
//save off the current value to restore it later,
var sOldText = textElement.value;
//document.write ("
t = " + sOldText +"");
//create a range object and save off its text
var objRange = document.selection.createRange();
var sOldRange = objRange.text;
// document.write ("
t = wqexwexwex");
//set this string to a small string that will not normally be encountered
var sWeirdString = '#%~';
// document.write ("
t = " + sWeirdString +"");
//insert the weirdstring where the cursor is at
objRange.text = sOldRange + sWeirdString;
objRange.moveStart('character', (0 - sOldRange.length - sWeirdString.length));
//save off the new string with the weirdstring in it
var sNewText = textElement.value;
//set the actual text value back to how it was
objRange.text = sOldRange;
//look through the new string we saved off and find the location of
//the weirdstring that was inserted and return that value
// document.write ("
o = " + sNewText +"");
for (i=0; i <= sNewText.length; i++) {
var sTemp = sNewText.substring(i, i + sWeirdString.length);
if (sTemp == sWeirdString) {
var cursorPos = (i - sOldRange.length);
// document.write ("
cp = " + cursorPos +"");
return cursorPos;
}
}
return 4;
}
//this function inserts the input string into the textarea
//where the cursor was at
function insertString(form, taid, stringToInsert) {
var myForm = document.getElementById(form);
// var myTextArea = document.getElementById(taid);
var myTextArea = myForm.elements[taid];
// document.write (" text area: "+myTextArea.value.length+" gcp = " + globalCursorPos+ "
");
var firstPart = myTextArea.value.substring(0, globalCursorPos);
var secondPart = myTextArea.value.substring(globalCursorPos, myTextArea.value.length);
myTextArea.value = firstPart + stringToInsert + secondPart;
}
// End