1.0/RGB_Converter.wdgt/Widget.js

   1 /*=====================================================================*\
   2 || ################################################################### ||
   3 || # RGB Converter Widget [#]version[#]
   4 || # --------------------------------------------------------------- # ||
   5 || # Copyright ©2002-[#]year[#] by Iris Studios, Inc. All Rights Reserved. # ||
   6 || # This file may not be reproduced in any way without permission.  # ||
   7 || # --------------------------------------------------------------- # ||
   8 || # User License Agreement at http://www.iris-studios.com/license/  # ||
   9 || ################################################################### ||
  10 \*=====================================================================*/
  11
  12 var fields = {
  13         red : 0,
  14         green : 0,
  15         blue : 0,
  16         hex : ''
  17 };
  18
  19 // ###################################################################
  20 // widget init
  21 function setup()
  22 {
  23         createGenericButton(document.getElementById("backbutton"), "Done", hide_back, 0);
  24 }
  25
  26 // ###################################################################
  27 // watches the three RGB fields to make sure they don't go over the limites
  28 function rgbwatcher(colour)
  29 {
  30         field = document.getElementById(colour + "inputf");
  31
  32         // sanitize the number
  33         var newval = field.value.replace(/[^0-9\-\.]*/g, "");
  34         newval = Math.floor(newval);
  35
  36         // make sure we don't go over 255
  37         if (newval > 255)
  38         {
  39                 newval = 255;
  40         }
  41         else if (newval < 0)
  42         {
  43                 newval = 0;
  44         }
  45
  46         // update the text field
  47         field.value = newval;
  48
  49         // set fields[]
  50         fields[colour] = newval;
  51
  52         // set hex
  53         update_hex();
  54
  55         // redraw the swatch
  56         update_swatch();
  57 }
  58
  59 // ###################################################################
  60 // watches the hex field for updates
  61 function hexwatcher()
  62 {
  63         field = document.getElementById("hexinputf");
  64
  65         // sanitize the hex
  66         var newval = field.value.replace(/[^0-9a-f]*/gi, "");
  67
  68         // get the length
  69         var length = newval.length;
  70
  71         // make sure we're always 6
  72         if (length > 6)
  73         {
  74                 newval = newval.substr(0, 6);
  75         }
  76         else if (length < 6)
  77         {
  78                 for (var i = length; i <= 6; i++)
  79                 {
  80                         newval = "" + newval + "0";
  81                 }
  82         }
  83
  84         // update the field
  85         field.value = newval;
  86
  87         // update fields[]
  88         fields['hex'] = newval;
  89
  90         // set RGB
  91         update_rgb();
  92
  93         // redraw the swatch
  94         update_swatch();
  95 }
  96
  97 // ###################################################################
  98 // update the hex value
  99 function update_hex()
 100 {
 101         var hexstr = dec2hex(fields['red']) + dec2hex(fields['green']) + dec2hex(fields['blue']);
 102         fields['hex'] = hexstr;
 103         document.getElementById("hexinputf").value = hexstr;
 104 }
 105
 106 // ###################################################################
 107 // update the RGB values
 108 function update_rgb()
 109 {
 110         // regex match the bits
 111         var bits = fields['hex'].match(/(..)(..)(..)/);
 112
 113         fields['red'] = hex2dec(bits[1]);
 114         fields['green'] = hex2dec(bits[2]);
 115         fields['blue'] = hex2dec(bits[3]);
 116
 117         // construct the hex values
 118         document.getElementById("redinputf").value = fields['red'];
 119         document.getElementById("greeninputf").value = fields['green'];
 120         document.getElementById("blueinputf").value = fields['blue'];
 121 }
 122
 123 // ###################################################################
 124 // update the colour swatch
 125 function update_swatch()
 126 {
 127         document.getElementById("swatch").style.backgroundColor = "rgb(" + fields['red'] + ", " + fields['green'] + ", " + fields['blue'] + ")";
 128 }
 129
 130 // ###################################################################
 131 // convert a decimal to a hexidecimal
 132 function dec2hex(dec)
 133 {
 134         var hexstr = "0123456789ABCDEF";
 135         var low = dec % 16;
 136         var high = (dec - low) / 16;
 137         hex = "" + hexstr.charAt(high) + hexstr.charAt(low);
 138
 139         return hex.toString();
 140 }
 141
 142 // ###################################################################
 143 // converts a hexidecimal to a decimal
 144 function hex2dec(hex)
 145 {
 146         return parseInt(hex, 16);
 147 }
 148
 149 // ###################################################################
 150 // ###################################################################
 151 // ###################################################################
 152
 153 // flip data
 154
 155 function show_back()
 156 {
 157         var front = document.getElementById("front");
 158         var back = document.getElementById("back");
 159
 160         if (window.widget)
 161         {
 162                 widget.prepareForTransition("ToBack");
 163         }
 164
 165         front.style.display = "none";
 166         back.style.display = "block";
 167
 168         if (window.widget)
 169         {
 170                 setTimeout("widget.performTransition();", 0);
 171         }
 172
 173         document.getElementById("fliprollie").style.display = "none";
 174 }
 175
 176 function hide_back()
 177 {
 178         var front = document.getElementById("front");
 179         var back = document.getElementById("back");
 180
 181         if (window.widget)
 182         {
 183                 widget.prepareForTransition("ToFront");
 184         }
 185
 186         back.style.display = "none";
 187         front.style.display = "block";
 188
 189         if (window.widget)
 190         {
 191                 setTimeout("widget.performTransition();", 0);
 192         }
 193 }
 194
 195 var flipShown = false;
 196
 197 var animation = {
 198         duration : 0,
 199         starttime : 0,
 200         to : 1.0,
 201         now : 0.0,
 202         from : 0.0,
 203         firstElement : null,
 204         timer : null
 205 };
 206
 207 function mousemove(event)
 208 {
 209         if (!flipShown)
 210         {
 211                 if (animation.timer != null)
 212                 {
 213                         clearInterval(animation.timer);
 214                         animation.timer  = null;
 215                 }
 216
 217                 var starttime = (new Date).getTime() - 13;
 218
 219                 animation.duration = 500;
 220                 animation.starttime = starttime;
 221                 animation.firstElement = document.getElementById("flip");
 222                 animation.timer = setInterval("animate();", 13);
 223                 animation.from = animation.now;
 224                 animation.to = 1.0;
 225                 animate();
 226                 flipShown = true;
 227         }
 228 }
 229
 230 function mouseexit(event)
 231 {
 232         if (flipShown)
 233         {
 234                 // fade in the flip widget
 235                 if (animation.timer != null)
 236                 {
 237                         clearInterval (animation.timer);
 238                         animation.timer  = null;
 239                 }
 240
 241                 var starttime = (new Date).getTime() - 13;
 242
 243                 animation.duration = 500;
 244                 animation.starttime = starttime;
 245                 animation.firstElement = document.getElementById("flip");
 246                 animation.timer = setInterval("animate();", 13);
 247                 animation.from = animation.now;
 248                 animation.to = 0.0;
 249                 animate();
 250                 flipShown = false;
 251         }
 252 }
 253
 254
 255 function animate()
 256 {
 257         var T;
 258         var ease;
 259         var time = (new Date).getTime();
 260
 261         T = limit_3(time - animation.starttime, 0, animation.duration);
 262
 263         if (T >= animation.duration)
 264         {
 265                 clearInterval(animation.timer);
 266                 animation.timer = null;
 267                 animation.now = animation.to;
 268         }
 269         else
 270         {
 271                 ease = 0.5 - (0.5 * Math.cos(Math.PI * T / animation.duration));
 272                 animation.now = compute_next_float(animation.from, animation.to, ease);
 273         }
 274
 275         animation.firstElement.style.opacity = animation.now;
 276 }
 277
 278 function limit_3 (a, b, c)
 279 {
 280     return a < b ? b : (a > c ? c : a);
 281 }
 282
 283 function compute_next_float(from, to, ease)
 284 {
 285     return from + (to - from) * ease;
 286 }
 287
 288 function enterflip(event)
 289 {
 290         document.getElementById("fliprollie").style.display = "block";
 291 }
 292
 293 function exitflip(event)
 294 {
 295         document.getElementById("fliprollie").style.display = "none";
 296 }
 297
 298 /*=====================================================================*\
 299 || ###################################################################
 300 || # $HeadURL$
 301 || # $Id$
 302 || ###################################################################
 303 \*=====================================================================*/