Current File : /home/caballoscriollos/www/js/colorPicker.js
// Copyright 2008 Sebo Zoltan <iamzoli@yahoo.com>
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject
// to the following conditions:
//
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
// BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
// ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
// CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
// A few configuration settings
var CROSSHAIRS_LOCATION = 'images/crosshairs.png';
var HUE_SLIDER_LOCATION = 'images/h.png';
var HUE_SLIDER_ARROWS_LOCATION = 'images/position.png';
var SAT_VAL_SQUARE_LOCATION = 'images/sv.png';
var BUTON_CLOSE_LOCATION='images/close.jpg';
var HEIGHT_OF_OBJ=25;//manualy move the the color picker top or botom
var WIDTH_OF_OBJ=150; //manualy move the color picker left or right
// Here are some boring utility functions. The real code comes later.
var is_div_init=false;
function hexToRgb(hex_string, default_)
{
if (default_ == undefined)
{
default_ = null;
}
if (hex_string.substr(0, 1) == '#')
{
hex_string = hex_string.substr(1);
}
var r;
var g;
var b;
if (hex_string.length == 3)
{
r = hex_string.substr(0, 1);
r += r;
g = hex_string.substr(1, 1);
g += g;
b = hex_string.substr(2, 1);
b += b;
}
else if (hex_string.length == 6)
{
r = hex_string.substr(0, 2);
g = hex_string.substr(2, 2);
b = hex_string.substr(4, 2);
}
else
{
return default_;
}
r = parseInt(r, 16);
g = parseInt(g, 16);
b = parseInt(b, 16);
if (isNaN(r) || isNaN(g) || isNaN(b))
{
return default_;
}
else
{
return {r: r / 255, g: g / 255, b: b / 255};
}
}
function rgbToHex(r, g, b, includeHash)
{
r = Math.round(r * 255);
g = Math.round(g * 255);
b = Math.round(b * 255);
if (includeHash == undefined)
{
includeHash = true;
}
r = r.toString(16);
if (r.length == 1)
{
r = '0' + r;
}
g = g.toString(16);
if (g.length == 1)
{
g = '0' + g;
}
b = b.toString(16);
if (b.length == 1)
{
b = '0' + b;
}
return ((includeHash ? '#' : '') + r + g + b).toUpperCase();
}
var arVersion = navigator.appVersion.split("MSIE");
var version = parseFloat(arVersion[1]);
function fixPNG(myImage)
{
if ((version >= 5.5) && (version < 7) && (document.body.filters))
{
var node = document.createElement('span');
node.id = myImage.id;
node.className = myImage.className;
node.title = myImage.title;
node.style.cssText = myImage.style.cssText;
node.style.setAttribute('filter', "progid:DXImageTransform.Microsoft.AlphaImageLoader"
+ "(src=\'" + myImage.src + "\', sizingMethod='scale')");
node.style.fontSize = '0';
node.style.width = myImage.width.toString() + 'px';
node.style.height = myImage.height.toString() + 'px';
node.style.display = 'inline-block';
return node;
}
else
{
return myImage.cloneNode(false);
}
}
function trackDrag(node, handler)
{
function fixCoords(x, y)
{
var nodePageCoords = pageCoords(node);
x = (x - nodePageCoords.x) + document.documentElement.scrollLeft;
y = (y - nodePageCoords.y) + document.documentElement.scrollTop;
if (x < 0) x = 0;
if (y < 0) y = 0;
if (x > node.offsetWidth - 1) x = node.offsetWidth - 1;
if (y > node.offsetHeight - 1) y = node.offsetHeight - 1;
return {x: x, y: y};
}
function mouseDown(ev)
{
var coords = fixCoords(ev.clientX, ev.clientY);
var lastX = coords.x;
var lastY = coords.y;
handler(coords.x, coords.y);
function moveHandler(ev)
{
var coords = fixCoords(ev.clientX, ev.clientY);
if (coords.x != lastX || coords.y != lastY)
{
lastX = coords.x;
lastY = coords.y;
handler(coords.x, coords.y);
}
}
function upHandler(ev)
{
myRemoveEventListener(document, 'mouseup', upHandler);
myRemoveEventListener(document, 'mousemove', moveHandler);
myAddEventListener(node, 'mousedown', mouseDown);
}
myAddEventListener(document, 'mouseup', upHandler);
myAddEventListener(document, 'mousemove', moveHandler);
myRemoveEventListener(node, 'mousedown', mouseDown);
if (ev.preventDefault) ev.preventDefault();
}
myAddEventListener(node, 'mousedown', mouseDown);
node.onmousedown = function(e) { return false; };
node.onselectstart = function(e) { return false; };
node.ondragstart = function(e) { return false; };
}
var eventListeners = [];
function findEventListener(node, event, handler)
{
var i;
for (i in eventListeners)
{
if (eventListeners[i].node == node && eventListeners[i].event == event
&& eventListeners[i].handler == handler)
{
return i;
}
}
return null;
}
function myAddEventListener(node, event, handler)
{
if (findEventListener(node, event, handler) != null)
{
return;
}
if (!node.addEventListener)
{
node.attachEvent('on' + event, handler);
}
else
{
node.addEventListener(event, handler, false);
}
eventListeners.push({node: node, event: event, handler: handler});
}
function removeEventListenerIndex(index)
{
var eventListener = eventListeners[index];
delete eventListeners[index];
if (!eventListener.node.removeEventListener)
{
eventListener.node.detachEvent('on' + eventListener.event,
eventListener.handler);
}
else
{
eventListener.node.removeEventListener(eventListener.event,
eventListener.handler, false);
}
}
function myRemoveEventListener(node, event, handler)
{
removeEventListenerIndex(findEventListener(node, event, handler));
}
function cleanupEventListeners()
{
var i;
for (i = eventListeners.length; i > 0; i--)
{
if (eventListeners[i] != undefined)
{
removeEventListenerIndex(i);
}
}
}
myAddEventListener(window, 'unload', cleanupEventListeners);
// This copyright statement applies to the following two functions,
// which are taken from MochiKit.
//
// Copyright 2005 Bob Ippolito <bob@redivi.com>
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject
// to the following conditions:
//
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
// BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
// ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
// CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
function hsvToRgb(hue, saturation, value)
{
var red;
var green;
var blue;
if (value == 0.0)
{
red = 0;
green = 0;
blue = 0;
}
else
{
var i = Math.floor(hue * 6);
var f = (hue * 6) - i;
var p = value * (1 - saturation);
var q = value * (1 - (saturation * f));
var t = value * (1 - (saturation * (1 - f)));
switch (i)
{
case 1: red = q; green = value; blue = p; break;
case 2: red = p; green = value; blue = t; break;
case 3: red = p; green = q; blue = value; break;
case 4: red = t; green = p; blue = value; break;
case 5: red = value; green = p; blue = q; break;
case 6: // fall through
case 0: red = value; green = t; blue = p; break;
}
}
return {r: red, g: green, b: blue};
}
function rgbToHsv(red, green, blue)
{
var max = Math.max(Math.max(red, green), blue);
var min = Math.min(Math.min(red, green), blue);
var hue;
var saturation;
var value = max;
if (min == max)
{
hue = 0;
saturation = 0;
}
else
{
var delta = (max - min);
saturation = delta / max;
if (red == max)
{
hue = (green - blue) / delta;
}
else if (green == max)
{
hue = 2 + ((blue - red) / delta);
}
else
{
hue = 4 + ((red - green) / delta);
}
hue /= 6;
if (hue < 0)
{
hue += 1;
}
if (hue > 1)
{
hue -= 1;
}
}
return {
h: hue,
s: saturation,
v: value
};
}
function pageCoords(node)
{
var x = node.offsetLeft;
var y = node.offsetTop;
var parent = node.offsetParent;
while (parent != null)
{
x += parent.offsetLeft;
y += parent.offsetTop;
parent = parent.offsetParent;
}
return {x: x, y: y};
}
// The real code begins here.
var colorPicker_parent = null;
var huePositionImg = document.createElement('img');
huePositionImg.galleryImg = false;
huePositionImg.width = 35;
huePositionImg.height = 11;
huePositionImg.src = HUE_SLIDER_ARROWS_LOCATION;
huePositionImg.style.position = 'absolute';
var hueSelectorImg = document.createElement('img');
hueSelectorImg.galleryImg = false;
hueSelectorImg.width = 35;
hueSelectorImg.height = 200;
hueSelectorImg.src = HUE_SLIDER_LOCATION;
hueSelectorImg.style.display = 'block';
var satValImg = document.createElement('img');
satValImg.galleryImg = false;
satValImg.width = 200;
satValImg.height = 200;
satValImg.src = SAT_VAL_SQUARE_LOCATION;
satValImg.style.display = 'block';
var crossHairsImg = document.createElement('img');
crossHairsImg.galleryImg = false;
crossHairsImg.width = 21;
crossHairsImg.height = 21;
crossHairsImg.src = CROSSHAIRS_LOCATION;
crossHairsImg.style.position = 'absolute';
var buttonCloseImg = document.createElement('img');
buttonCloseImg.galleryImg = false;
buttonCloseImg.width = 85;
buttonCloseImg.height = 17;
buttonCloseImg.src = BUTON_CLOSE_LOCATION;
buttonCloseImg.style.position = 'absolute';
buttonCloseImg.style.cursor='pointer';
buttonCloseImg.onclick=hideColorPicker;
function makeColorSelector(inputBox)
{
var rgb, hsv
function colorChanged()
{
is_div_init=false;
var hex = rgbToHex(rgb.r, rgb.g, rgb.b);
var hueRgb = hsvToRgb(hsv.h, 1, 1);
var hueHex = rgbToHex(hueRgb.r, hueRgb.g, hueRgb.b);
//alert(hex);
inputBox.style.background = hex;
inputBox.value =hex;
// popox ideea
if(((rgb.r*100+rgb.g*100+rgb.b*100)/3)<65) //change text color to white if the background color is to dark
inputBox.style.color="#fff";
else inputBox.style.color="#000";
satValDiv.style.background = hueHex;
crossHairs.style.left = ((hsv.v*199)-10).toString() + 'px';
crossHairs.style.top = (((1-hsv.s)*199)-10).toString() + 'px';
huePos.style.top = ((hsv.h*199)-5).toString() + 'px';
is_div_init=true;
}
function rgbChanged()
{
hsv = rgbToHsv(rgb.r, rgb.g, rgb.b);
colorChanged();
}
function hsvChanged()
{
rgb = hsvToRgb(hsv.h, hsv.s, hsv.v);
colorChanged();
}
var colorSelectorDiv = document.createElement('div');
colorSelectorDiv.style.paddingLeft = '5px';
colorSelectorDiv.style.paddingRight = '5px';
colorSelectorDiv.style.paddingBottom = '5px';
colorSelectorDiv.style.position = 'relative';
colorSelectorDiv.style.diplay="inline";
colorSelectorDiv.style.height = '220px';
colorSelectorDiv.style.width = '210px';
var butonclose = document.createElement('div');
butonclose.style.position = 'relative';
butonclose.style.diplay="inline";
butonclose.style.height = '10px';
butonclose.style.width = '85px';
butonclose.style.left="160px";
butonclose.appendChild(buttonCloseImg);
colorSelectorDiv.appendChild(butonclose);
var satValDiv = document.createElement('div');
satValDiv.style.position = 'relative';
satValDiv.style.diplay="inline";
satValDiv.style.top = '10px';
satValDiv.style.width = '200px';
satValDiv.style.height = '200px';
var newSatValImg = fixPNG(satValImg);
satValDiv.appendChild(newSatValImg);
var crossHairs = crossHairsImg.cloneNode(false);
satValDiv.appendChild(crossHairs);
function satValDragged(x, y)
{
hsv.s = 1-(y/199);
hsv.v = (x/199);
hsvChanged();
}
trackDrag(satValDiv, satValDragged)
colorSelectorDiv.appendChild(satValDiv);
var hueDiv = document.createElement('div');
//hueDiv.style.align = 'center';
hueDiv.style.position = 'absolute';
hueDiv.style.diplay="inline";
hueDiv.style.left = '210px';
hueDiv.style.top = '19px';
hueDiv.style.width = '35px';
hueDiv.style.height = '200px';
var huePos = fixPNG(huePositionImg);
hueDiv.appendChild(hueSelectorImg.cloneNode(false));
hueDiv.appendChild(huePos);
function hueDragged(x, y)
{
is_div_init=false;
hsv.h = y/199;
hsvChanged();
}
trackDrag(hueDiv, hueDragged);
colorSelectorDiv.appendChild(hueDiv);
function inputBoxChanged()
{
rgb = hexToRgb(inputBox.value, {r: 0, g: 0, b: 0});
rgbChanged();
}
myAddEventListener(inputBox, 'change', inputBoxChanged);
inputBoxChanged();
return colorSelectorDiv;
}
function colorPickerGetTopPos(inputObj)
{
var returnValue = inputObj.offsetTop;
while((inputObj = inputObj.offsetParent) != null){
returnValue += inputObj.offsetTop;
}
return returnValue-HEIGHT_OF_OBJ;
}
function colorPickerGetLeftPos(inputObj)
{
var returnValue = inputObj.offsetLeft;
while((inputObj = inputObj.offsetParent) != null)returnValue += inputObj.offsetLeft;
return returnValue+WIDTH_OF_OBJ;
}
function startColorPicker(inputObj, parent)
{
hideColorPicker();
container = document.getElementById(parent);
if (container == undefined)
return false;
colorPicker_parent = parent;
var color_picker_div = document.createElement('DIV');
color_picker_div.style.left = colorPickerGetLeftPos(inputObj) + 'px';
color_picker_div.style.width='250px';
color_picker_div.style.heigth='190px';
color_picker_div.style.left = '50px';
color_picker_div.style.align='center';
color_picker_div.id = 'The_colorPicker';
color_picker_div.style.display='block';
color_picker_div.appendChild(makeColorSelector(inputObj));
//document.body.appendChild(color_picker_div);
container.appendChild(color_picker_div);
is_div_init=true;
}
function hideColorPicker()
{
/*
if (is_div_init){
is_div_init=false;
document.body.removeChild(document.getElementById('The_colorPicker'));
}
*/
container = document.getElementById(colorPicker_parent);
if (container == undefined)
return false;
if (is_div_init){
is_div_init=false;
container.removeChild(document.getElementById('The_colorPicker'));
}
}
function maskedHex(input)
{
var mask = '#[0-9a-fA-F]{7}';
input.value=input.value.replace(mask,"");
}
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