reporting/includes/class.graphic.inc

   1 <?php
   2 /**
   3 *
   4 *   graph
   5 *   version 1.0
   6 *
   7 *
   8 *
   9 * Author: Carlos Reche/Joe Hunt
  10 * E-mail: carlosreche@yahoo.com/joe.hunt.consulting@gmail.com
  11 * Sorocaba, SP - Brazil/Wellington, New Zealand
  12 *
  13 * Created: Sep 20, 2004
  14 * Last Modification: Sep 20, 2004/Apr 01, 2007
  15 *
  16 *
  17 *
  18 *  Authors' comments:
  19 *
  20 *  graph creates 6 different types of graphics with how many parameters you want. You can
  21 *  change the appearance of the graphics in 3 different skins, and you can still cross data from 2
  22 *  graphics in only 1! It's a powerful script, and I recommend you read all the instructions
  23 *  to learn how to use all of this features. Don't worry, it's very simple to use it.
  24 *
  25 *  This script is free. Please keep the credits.
  26 *
  27 */
  28
  29 /**
  30
  31    INSTRUNCTIONS OF HOW TO USE THIS SCRIPT  (Please, take a minute to read it. It's important!)
  32
  33
  34    NOTE: make sure that your PHP is compiled to work with GD Lib.
  35
  36 ///// START OF EXAMPLE.PHP /////
  37
  38 <?php
  39
  40 require "class.graphics.inc";
  41 $pg = new graph;
  42
  43 $pg->title = "Sex";
  44 $pg->type  = "5";
  45 $pg->x[0]  = "male";
  46 $pg->y[0]  = "50";
  47 $pg->x[1]  = "female";
  48 $pg->y[1]  = "55";
  49 $pg->display();
  50 ?>
  51
  52 In your html file you set it up as:
  53 .....
  54 <img src="example.php" border="1" />
  55 .....
  56
  57 You can supply extra parameters to display(). Ex. $pg->display("test.png") will save the image to a file.
  58 Ex. $pg->display("", true) will paint a border around the image. It might be suitable if you choose to save to
  59 file for later presentation.
  60
  61 ///// END OF EXAMPLE.PHP /////
  62
  63
  64
  65    Here is a list of all parameters you may set:
  66
  67    title      =>  Title of the graphic
  68    axis_x     =>  Name of values from Axis X
  69    axis_y     =>  Name of values from Axis Y
  70    graphic_1  =>  Name of Graphic_1 (only shown if you are gonna cross data from 2 different graphics)
  71    graphic_2  =>  Name of Graphic_2 (same comment of above)
  72
  73    type  =>  Type of graphic (values 1 to 6)
  74                 1 => Vertical bars (default)
  75                 2 => Horizontal bars
  76                 3 => Dots
  77                 4 => Lines
  78                 5 => Pie
  79                 6 => Donut
  80
  81    skin   => Skin of the graphic (values 1 to 3)
  82                 1 => Office (default)
  83                 2 => Matrix
  84                 3 => Spring
  85
  86    credits => Only if you want to show my credits in the image. :)
  87                 0 => doesn't show (default)
  88                 1 => shows
  89
  90    x[0]  =>  Name of the first parameter in Axis X
  91    x[1]  =>  Name of the second parameter in Axis X
  92    ... (etc)
  93
  94    y[0]  =>  Value from "graphic_1" relative for "x[0]"
  95    y[1]  =>  Value from "graphic_1" relative for "x[1]"
  96    ... (etc)
  97
  98    z[0]  =>  Value from "graphic_2" relative for "x[0]"
  99    z[1]  =>  Value from "graphic_2" relative for "x[1]"
 100    ... (etc)
 101
 102
 103    NOTE: You can't cross data between graphics if you use "pie" or "donut" graphic. Values for "z"
 104    won't be considerated.
 105
 106    That's all! Hope you make a good use of it!
 107    It would be nice to receive feedback from others users. All comments are welcome!
 108
 109    Regards,
 110
 111    Carlos Reche
 112
 113 */
 114
 115 class graph
 116 {
 117
 118     var $x;
 119     var $y;
 120     var $z;
 121
 122     var $title;
 123     var $axis_x;
 124     var $axis_y;
 125     var $graphic_1;
 126     var $graphic_2;
 127     var $type = 1;
 128     var $skin = 1;
 129     var $credits = 0;
 130     var $latin_notation;
 131
 132     var $width;
 133     var $height;
 134     var $height_title;
 135     var $alternate_x;
 136
 137         var $size = 2;
 138         var $tsize = 5;
 139
 140     var $total_parameters;
 141     var $sum_total;
 142     var $biggest_value;
 143     var $biggest_parameter;
 144     var $available_types;
 145     var $dec1 = 0;
 146     var $dec2 = 0;
 147     var $h3d = 15; // 3D height
 148         var $built_in = true;
 149         var $fontfile = "";
 150         var $encoding;
 151
 152     function graph()
 153     {
 154                 $this->encoding = $_SESSION['language']->encoding;
 155                 $path = dirname(__FILE__).'/../fonts/';
 156
 157                 // If you use utf-8 encoding you have to download and install FreeSans.ttf font.
 158                 // It is not bundled with application due to its size.
 159                 $this->fontfile = $this->encoding=='UTF-8' ? $path.'FreeSans.ttf' : $path.'LiberationSans-Regular.ttf';
 160
 161         $this->x = $this->y = $this->z = array();
 162         $this->biggest_x        = NULL;
 163         $this->biggest_y        = NULL;
 164         $this->alternate_x      = false;
 165         $this->graphic_2_exists = false;
 166         $this->total_parameters = 0;
 167         $this->sum_total        = 1;
 168                 $this->latin_notation   = false;
 169     }
 170
 171
 172     function display($save="", $border=false)
 173     {
 174         $this->legend_exists        = (preg_match("/(5|6)/", $this->type)) ? true : false;
 175         $this->biggest_graphic_name = (strlen($this->graphic_1) > strlen($this->graphic_2)) ? $this->graphic_1 : $this->graphic_2;
 176         $this->height_title         = (!empty($this->title)) ? ($this->string_height($this->tsize) + 15) : 0;
 177         $this->space_between_bars   = ($this->type == 1) ? 40 : 30;
 178         $this->space_between_dots   = 40;
 179         $this->higher_value         = 0;
 180         $this->higher_value_str     = 0;
 181
 182         $this->width               = 0;
 183         $this->height              = 0;
 184         $this->graphic_area_width  = 0;
 185         $this->graphic_area_height = 0;
 186         $this->graphic_area_x1     = 30;
 187         $this->graphic_area_y1     = 20 + $this->height_title;
 188         $this->graphic_area_x2     = $this->graphic_area_x1 + $this->graphic_area_width;
 189         $this->graphic_area_y2     = $this->graphic_area_y1 + $this->graphic_area_height;
 190
 191                 if (count($this->z) && (preg_match("/(1|2|3|4)/", $this->type)))
 192             $this->graphic_2_exists = true;
 193         $this->total_parameters    = count($this->x);
 194                 for ($i = 0; $i < $this->total_parameters; $i++)
 195                 {
 196                         if (strlen($this->x[$i]) > strlen($this->biggest_x))
 197                 $this->biggest_x = $this->x[$i];
 198                         if ($this->y[$i] > $this->biggest_y)
 199                 $this->biggest_y = number_format(round($this->y[$i], 1), 1, ".", "");
 200             if ($this->graphic_2_exists)
 201             {
 202                 if (isset($this->z[$i]) && $this->z[$i] > $this->biggest_y)
 203                         $this->biggest_y = number_format(round($this->z[$i], 1), 1, ".", "");
 204             }
 205         }
 206
 207         if (($this->graphic_2_exists == true)  &&  ((!empty($this->graphic_1)) || (!empty($this->graphic_2))))
 208         {
 209             $this->legend_exists = true;
 210         }
 211
 212         $this->sum_total           = array_sum($this->y);
 213         if ($this->sum_total == 0)
 214                 $this->sum_total = 1;
 215         $this->space_between_bars += ($this->graphic_2_exists == true) ? 10 : 0;
 216
 217         $this->calculate_higher_value();
 218         $this->calculate_width();
 219         $this->calculate_height();
 220
 221         $this->create_graphic($save, $border);
 222     }
 223
 224     function create_graphic($save="", $border=false)
 225     {
 226         $size = 3;
 227         $this->img = imagecreatetruecolor($this->width, $this->height);
 228
 229         $this->load_color_palette();
 230
 231         // Fill background
 232         imagefill($this->img, 0, 0, $this->color['background']);
 233         //imagefilledrectangle($this->img, 0, 0, $this->width, $this->height, $this->color['background']);
 234         //if ($border)
 235         //      imagerectangle($this->img, 0, 0, $this->width-1, $this->height-1, imagecolorallocate($this->img, 100, 150, 200));
 236
 237         // Draw title
 238         if (!empty($this->title))
 239         {
 240             $center = ($this->width / 2) - ($this->string_width($this->title, $this->tsize) / 2);
 241             $this->_imagestring($this->img, $this->tsize, $center, 10, $this->title, $this->color['title']);
 242         }
 243
 244
 245         // Draw axis and background lines for "vertical bars", "dots" and "lines"
 246         if (preg_match("/^(1|3|4)$/", $this->type))
 247         {
 248             if ($this->legend_exists == true)
 249             {
 250                 $this->draw_legend();
 251             }
 252
 253             $higher_value_y    = $this->graphic_area_y1 + (0.1 * $this->graphic_area_height);
 254             $higher_value_size = 0.9 * $this->graphic_area_height;
 255
 256             $less  = 7 * strlen($this->higher_value_str);
 257
 258             imageline($this->img, $this->graphic_area_x1, $higher_value_y, $this->graphic_area_x2, $higher_value_y, $this->color['bg_lines']);
 259             $this->_imagestring($this->img, $this->size, ($this->graphic_area_x1-$less-7), ($higher_value_y-7), $this->higher_value_str, $this->color['axis_values']);
 260
 261             for ($i = 1; $i < 10; $i++)
 262             {
 263                 $dec_y = $i * ($higher_value_size / 10);
 264                 $x1 = $this->graphic_area_x1;
 265                 $y1 = $this->graphic_area_y2 - $dec_y;
 266                 $x2 = $this->graphic_area_x2;
 267                 $y2 = $this->graphic_area_y2 - $dec_y;
 268
 269                 imageline($this->img, $x1, $y1, $x2, $y2, $this->color['bg_lines']);
 270                 if ($i % 2 == 0)
 271                 {
 272                     $value = $this->number_formated($this->higher_value * $i / 10, $this->dec1);
 273                     $less = 7 * strlen($value);
 274                     $this->_imagestring($this->img, $this->size, ($x1-$less-7), ($y2-7), $value, $this->color['axis_values']);
 275                 }
 276             }
 277
 278             // Axis X
 279             $this->_imagestring($this->img, $this->size, $this->graphic_area_x2+10, $this->graphic_area_y2+3, $this->axis_x, $this->color['title']);
 280             imageline($this->img, $this->graphic_area_x1, $this->graphic_area_y2, $this->graphic_area_x2, $this->graphic_area_y2, $this->color['axis_line']);
 281             // Axis Y
 282             $this->_imagestring($this->img, $this->size, 20, $this->graphic_area_y1-20, $this->axis_y, $this->color['title']);
 283             imageline($this->img, $this->graphic_area_x1, $this->graphic_area_y1, $this->graphic_area_x1, $this->graphic_area_y2, $this->color['axis_line']);
 284         }
 285
 286
 287         // Draw axis and background lines for "horizontal bars"
 288         else if ($this->type == 2)
 289         {
 290             if ($this->legend_exists == true)
 291             {
 292                 $this->draw_legend();
 293             }
 294
 295             $higher_value_x    = $this->graphic_area_x2 - (0.2 * $this->graphic_area_width);
 296             $higher_value_size = 0.8 * $this->graphic_area_width;
 297
 298             imageline($this->img, ($this->graphic_area_x1+$higher_value_size), $this->graphic_area_y1, ($this->graphic_area_x1+$higher_value_size), $this->graphic_area_y2, $this->color['bg_lines']);
 299             $this->_imagestring($this->img, $this->size, (($this->graphic_area_x1+$higher_value_size) - ($this->string_width($this->higher_value, $this->size)/2)), ($this->graphic_area_y2+2), $this->higher_value_str, $this->color['axis_values']);
 300
 301             for ($i = 1, $alt = 15; $i < 10; $i++)
 302             {
 303                 $dec_x = number_format(round($i * ($higher_value_size  / 10), 1), 1, ".", "");
 304
 305                 imageline($this->img, ($this->graphic_area_x1+$dec_x), $this->graphic_area_y1, ($this->graphic_area_x1+$dec_x), $this->graphic_area_y2, $this->color['bg_lines']);
 306                 if ($i % 2 == 0)
 307                 {
 308                     $alt   = (strlen($this->biggest_y) > 4 && $alt != 15) ? 15 : 2;
 309                     $value = $this->number_formated($this->higher_value * $i / 10, $this->dec1);
 310                     $this->_imagestring($this->img, $this->size, (($this->graphic_area_x1+$dec_x) - ($this->string_width($this->higher_value, $this->size)/2)), ($this->graphic_area_y2), $value, $this->color['axis_values'], $alt);
 311                 }
 312             }
 313
 314             // Axis X
 315             $this->_imagestring($this->img, $this->size, ($this->graphic_area_x2+10), ($this->graphic_area_y2+3), $this->axis_y, $this->color['title']);
 316             imageline($this->img, $this->graphic_area_x1, $this->graphic_area_y2, $this->graphic_area_x2, $this->graphic_area_y2, $this->color['axis_line']);
 317             // Axis Y
 318             $this->_imagestring($this->img, $this->size, 20, ($this->graphic_area_y1-20), $this->axis_x, $this->color['title']);
 319             imageline($this->img, $this->graphic_area_x1, $this->graphic_area_y1, $this->graphic_area_x1, $this->graphic_area_y2, $this->color['axis_line']);
 320         }
 321
 322
 323         // Draw legend box for "pie" or "donut"
 324         else if (preg_match("/^(5|6)$/", $this->type))
 325         {
 326             $this->draw_legend();
 327         }
 328
 329
 330
 331         /**
 332         * Draw graphic: VERTICAL BARS
 333         */
 334         if ($this->type == 1)
 335         {
 336             $num = 1;
 337             $x   = $this->graphic_area_x1 + 20;
 338
 339             foreach ($this->x as $i => $parameter)
 340             {
 341                 if (isset($this->z[$i]))
 342                 {
 343                     $size = round($this->z[$i] * $higher_value_size / $this->higher_value);
 344                     $x1   = $x + 10;
 345                     $y1   = ($this->graphic_area_y2 - $size) + 1;
 346                     $x2   = $x1 + 20;
 347                     $y2   = $this->graphic_area_y2 - 1;
 348                     imageline($this->img, ($x1+1), ($y1-1), $x2, ($y1-1), $this->color['bars_2_shadow']);
 349                     imageline($this->img, ($x2+1), ($y1-1), ($x2+1), $y2, $this->color['bars_2_shadow']);
 350                     imageline($this->img, ($x2+2), ($y1-1), ($x2+2), $y2, $this->color['bars_2_shadow']);
 351                     imagefilledrectangle($this->img, $x1, $y1, $x2, $y2, $this->color['bars_2']);
 352                 }
 353
 354                 $size = round($this->y[$i] * $higher_value_size / $this->higher_value);
 355                 $alt  = (($num % 2 == 0) && (strlen($this->biggest_x) > 5)) ? 15 : 2;
 356                 $x1   = $x;
 357                 $y1   = ($this->graphic_area_y2 - $size) + 1;
 358                 $x2   = $x1 + 20;
 359                 $y2   = $this->graphic_area_y2 - 1;
 360                 $x   += $this->space_between_bars;
 361                 $num++;
 362
 363                 imageline($this->img, ($x1+1), ($y1-1), $x2, ($y1-1), $this->color['bars_shadow']);
 364                 imageline($this->img, ($x2+1), ($y1-1), ($x2+1), $y2, $this->color['bars_shadow']);
 365                 imageline($this->img, ($x2+2), ($y1-1), ($x2+2), $y2, $this->color['bars_shadow']);
 366                 imagefilledrectangle($this->img, $x1, $y1, $x2, $y2, $this->color['bars']);
 367                 $this->_imagestring($this->img, $this->size, ((($x1+$x2)/2) - (strlen($parameter)*7/2)), ($y2+2), $parameter, $this->color['axis_values'], $alt);
 368             }
 369         }
 370
 371
 372         /**
 373         * Draw graphic: HORIZONTAL BARS
 374         */
 375         else if ($this->type == 2)
 376         {
 377             $y = 10;
 378
 379             foreach ($this->x as $i => $parameter)
 380             {
 381                 if (isset($this->z[$i]))
 382                 {
 383                     $size = round($this->z[$i] * $higher_value_size / $this->higher_value);
 384                     $x1   = $this->graphic_area_x1 + 1;
 385                     $y1   = $this->graphic_area_y1 + $y + 10;
 386                     $x2   = $x1 + $size;
 387                     $y2   = $y1 + 15;
 388                     imageline($this->img, ($x1), ($y2+1), $x2, ($y2+1), $this->color['bars_2_shadow']);
 389                     imageline($this->img, ($x1), ($y2+2), $x2, ($y2+2), $this->color['bars_2_shadow']);
 390                     imageline($this->img, ($x2+1), ($y1+1), ($x2+1), ($y2+2), $this->color['bars_2_shadow']);
 391                     imagefilledrectangle($this->img, $x1, $y1, $x2, $y2, $this->color['bars_2']);
 392                     $this->_imagestring($this->img, $this->size, ($x2+7), ($y1+7), $this->number_formated($this->z[$i], $this->dec2), $this->color['bars_2_shadow']);
 393                 }
 394
 395                 $size = round(($this->y[$i] / $this->higher_value) * $higher_value_size);
 396                 $x1   = $this->graphic_area_x1 + 1;
 397                 $y1   = $this->graphic_area_y1 + $y;
 398                 $x2   = $x1 + $size;
 399                 $y2   = $y1 + 15;
 400                 $y   += $this->space_between_bars;
 401
 402                 imageline($this->img, ($x1), ($y2+1), $x2, ($y2+1), $this->color['bars_shadow']);
 403                 imageline($this->img, ($x1), ($y2+2), $x2, ($y2+2), $this->color['bars_shadow']);
 404                 imageline($this->img, ($x2+1), ($y1+1), ($x2+1), ($y2+2), $this->color['bars_shadow']);
 405                 imagefilledrectangle($this->img, $x1, $y1, $x2, $y2, $this->color['bars']);
 406                 $this->_imagestring($this->img, $this->size, ($x2+7), ($y1+2), $this->number_formated($this->y[$i], $this->dec2), $this->color['bars_shadow']);
 407
 408                 //$this->_imagestring($this->img, $this->size, ($x1 - ((strlen($parameter)*7)+7)), ($y1+2), $parameter, $this->color['axis_values']);
 409                 $this->_imagestring($this->img, $this->size, 30, ($y1+2), $parameter, $this->color['axis_values']);
 410             }
 411         }
 412
 413
 414         /**
 415         * Draw graphic: DOTS or LINE
 416         */
 417         else if (preg_match("/^(3|4)$/", $this->type))
 418         {
 419
 420             $x[0] = $this->graphic_area_x1+1;
 421
 422             foreach ($this->x as $i => $parameter)
 423             {
 424                 if ($this->graphic_2_exists == true)
 425                 {
 426                     $size  = round($this->z[$i] * $higher_value_size / $this->higher_value);
 427                     $z[$i] = $this->graphic_area_y2 - $size;
 428                 }
 429
 430                 $alt   = (($i % 2 == 0) && (strlen($this->biggest_x) > 5)) ? 15 : 2;
 431                 $size  = round($this->y[$i] * $higher_value_size / $this->higher_value);
 432                 $y[$i] = $this->graphic_area_y2 - $size;
 433
 434                 if ($i != 0)
 435                 {
 436                     imageline($this->img, $x[$i], ($this->graphic_area_y1+10), $x[$i], ($this->graphic_area_y2-1), $this->color['bg_lines']);
 437                 }
 438                 $this->_imagestring($this->img, $this->size, ($x[$i] - (strlen($parameter)*7/2 )), ($this->graphic_area_y2+2), $parameter, $this->color['axis_values'], $alt);
 439
 440                 $x[$i+1] = $x[$i] + 40;
 441             }
 442
 443             foreach ($x as $i => $value_x)
 444             {
 445                 if ($this->graphic_2_exists == true)
 446                 {
 447                     if (isset($z[$i+1]))
 448                     {
 449                         // Draw lines
 450                         if ($this->type == 4)
 451                         {
 452                             imageline($this->img, $x[$i], $z[$i], $x[$i+1], $z[$i+1], $this->color['line_2']);
 453                             imageline($this->img, $x[$i], ($z[$i]+1), $x[$i+1], ($z[$i+1]+1), $this->color['line_2']);
 454                         }
 455                         imagefilledrectangle($this->img, $x[$i]-1, $z[$i]-1, $x[$i]+2, $z[$i]+2, $this->color['line_2']);
 456                     }
 457                     else
 458                     { // Draw last dot
 459                         imagefilledrectangle($this->img, $x[$i-1]-1, $z[$i-1]-1, $x[$i-1]+2, $z[$i-1]+2, $this->color['line_2']);
 460                     }
 461                 }
 462
 463                 if (count($y) > 1)
 464                 {
 465                     if (isset($y[$i+1]))
 466                     {
 467                         // Draw lines
 468                         if ($this->type == 4)
 469                         {
 470                             imageline($this->img, $x[$i], $y[$i], $x[$i+1], $y[$i+1], $this->color['line']);
 471                             imageline($this->img, $x[$i], ($y[$i]+1), $x[$i+1], ($y[$i+1]+1), $this->color['line']);
 472                         }
 473                         imagefilledrectangle($this->img, $x[$i]-1, $y[$i]-1, $x[$i]+2, $y[$i]+2, $this->color['line']);
 474                     }
 475                     else
 476                     { // Draw last dot
 477                         imagefilledrectangle($this->img, $x[$i-1]-1, $y[$i-1]-1, $x[$i-1]+2, $y[$i-1]+2, $this->color['line']);
 478                     }
 479                 }
 480
 481             }
 482         }
 483
 484
 485         /**
 486         * Draw graphic: PIE or DONUT
 487         */
 488         else if (preg_match("/^(5|6)$/", $this->type))
 489         {
 490             $center_x = ($this->graphic_area_x1 + $this->graphic_area_x2) / 2;
 491             $center_y = ($this->graphic_area_y1 + $this->graphic_area_y2) / 2;
 492             $width    = $this->graphic_area_width;
 493             $height   = $this->graphic_area_height;
 494             $start    = 0;
 495             $sizes    = array();
 496
 497             foreach ($this->x as $i => $parameter)
 498             {
 499                 $size    = $this->y[$i] * 360 / $this->sum_total;
 500                                 $size = round2($size, 0);
 501                 $sizes[] = $size;
 502                 $start  += $size;
 503             }
 504             $start = 270;
 505
 506             // Draw PIE
 507             if ($this->type == 5)
 508             {
 509                 // Draw shadow
 510                 foreach ($sizes as $i => $size)
 511                 {
 512                     $num_color = $i + 1;
 513                     while ($num_color > 7)
 514                     {
 515                         $num_color -= 5;
 516                     }
 517                     $color = 'arc_' . $num_color . '_shadow';
 518
 519                     for ($i = $this->h3d; $i >= 0; $i--)
 520                     {
 521                         //imagearc($this->img, $center_x, ($center_y+$i), $width, $height, $start, ($start+$size), $this->color[$color]);
 522                         if ($size >= 1)
 523                                 imagefilledarc($this->img, $center_x, ($center_y+$i), $width, $height, $start, ($start+$size), $this->color[$color], IMG_ARC_NOFILL);
 524                     }
 525                     $start += $size;
 526                 }
 527
 528                 $start = 270;
 529
 530                 // Draw pieces
 531                 foreach ($sizes as $i => $size)
 532                 {
 533                     $num_color = $i + 1;
 534                     while ($num_color > 7)
 535                     {
 536                         $num_color -= 5;
 537                     }
 538                     $color = 'arc_' . $num_color;
 539                     if ($size >= 1)
 540                         imagefilledarc($this->img, $center_x, $center_y, ($width+2), ($height+2), $start, ($start+$size), $this->color[$color], IMG_ARC_EDGED);
 541                     $start += $size;
 542                 }
 543             }
 544
 545             // Draw DONUT
 546             else if ($this->type == 6)
 547             {
 548                 foreach ($sizes as $i => $size)
 549                 {
 550                     $num_color = $i + 1;
 551                     while ($num_color > 7)
 552                     {
 553                         $num_color -= 5;
 554                     }
 555                     $color        = 'arc_' . $num_color;
 556                     $color_shadow = 'arc_' . $num_color . '_shadow';
 557                     if ($size >= 1)
 558                         imagefilledarc($this->img, $center_x, $center_y, $width, $height, $start, ($start+$size), $this->color[$color], IMG_ARC_PIE);
 559                     $start += $size;
 560                 }
 561                 imagefilledarc($this->img, $center_x, $center_y, 100, 100, 0, 360, $this->color['background'], IMG_ARC_PIE);
 562                 imagearc($this->img, $center_x, $center_y, 100, 100, 0, 360, $this->color['bg_legend']);
 563                 imagearc($this->img, $center_x, $center_y, ($width+1), ($height+1), 0, 360, $this->color['bg_legend']);
 564             }
 565         }
 566
 567
 568         if ($this->credits == true)
 569         {
 570             $this->draw_credits();
 571         }
 572                 if ($save != "")
 573                         imagepng($this->img, $save);
 574                 else
 575                 {
 576                 header('Content-type: image/png');
 577                 imagepng($this->img);
 578         }
 579         imagedestroy($this->img);
 580     }
 581
 582     function calculate_width()
 583     {
 584         switch ($this->type)
 585         {
 586             // Vertical bars
 587             case 1:
 588                 $this->legend_box_width   = ($this->legend_exists == true) ? ($this->string_width($this->biggest_graphic_name, $this->tsize) + 25) : 0;
 589                 $this->graphic_area_width = ($this->space_between_bars * $this->total_parameters) + 30;
 590                 $this->graphic_area_x1   += $this->string_width(($this->higher_value_str), $this->size);
 591                 $this->width += $this->graphic_area_x1 + 20;
 592                 $this->width += ($this->legend_exists == true) ? 50 : ((7 * strlen($this->axis_x)) + 10);
 593                 break;
 594
 595             // Horizontal bars
 596             case 2:
 597                 $this->legend_box_width   = ($this->legend_exists == true) ? ($this->string_width($this->biggest_graphic_name, $this->size) + 25) : 0;
 598                 $this->graphic_area_width = ($this->string_width($this->higher_value_str, $this->size) > 50) ? (5 * ($this->string_width($this->higher_value_str, $this->size)) * 0.85) : 200;
 599                 $this->graphic_area_x1 += 7 * strlen($this->biggest_x);
 600                 $this->width += ($this->legend_exists == true) ? 60 : ((7 * strlen($this->axis_y)) + 30);
 601                 $this->width += $this->graphic_area_x1;
 602                 break;
 603
 604             // Dots
 605             case 3:
 606                 $this->legend_box_width   = ($this->legend_exists == true) ? ($this->string_width($this->biggest_graphic_name, $this->size) + 25) : 0;
 607                 $this->graphic_area_width = ($this->space_between_dots * $this->total_parameters) - 10;
 608                 $this->graphic_area_x1   += $this->string_width(($this->higher_value_str), $this->size);
 609                 $this->width += $this->graphic_area_x1 + 20;
 610                 $this->width += ($this->legend_exists == true) ? 40 : ((7 * strlen($this->axis_x)) + 30);
 611                 break;
 612
 613             // Lines
 614             case 4:
 615                 $this->legend_box_width   = ($this->legend_exists == true) ? ($this->string_width($this->biggest_graphic_name, $this->size) + 25) : 0;
 616                 $this->graphic_area_width = ($this->space_between_dots * $this->total_parameters) - 10;
 617                 $this->graphic_area_x1   += $this->string_width(($this->higher_value_str), $this->size);
 618                 $this->width += $this->graphic_area_x1 + 20;
 619                 $this->width += ($this->legend_exists == true) ? 40 : ((7 * strlen($this->axis_x)) + 30);
 620                 break;
 621
 622             // Pie
 623             case 5:
 624                 $this->legend_box_width   = $this->string_width($this->biggest_x, $this->size) + 85;
 625                 $this->graphic_area_width = 200;
 626                 $this->width += 90;
 627                 break;
 628
 629             // Donut
 630             case 6:
 631                 $this->legend_box_width   = $this->string_width($this->biggest_x, $this->size) + 85;
 632                 $this->graphic_area_width = 180;
 633                 $this->width += 90;
 634                 break;
 635         }
 636
 637         $this->graphic_area_width = max($this->graphic_area_width, $this->string_width($this->title, $this->size));
 638         $this->width += $this->graphic_area_width;
 639         $this->width += $this->legend_box_width;
 640
 641
 642         $this->graphic_area_x2 = $this->graphic_area_x1 + $this->graphic_area_width;
 643         $this->legend_box_x1   = $this->graphic_area_x2 + 40;
 644         $this->legend_box_x2   = $this->legend_box_x1 + $this->legend_box_width;
 645     }
 646
 647     function calculate_height()
 648     {
 649         switch ($this->type)
 650         {
 651             // Vertical bars
 652             case 1:
 653                 $this->legend_box_height   = ($this->graphic_2_exists == true) ? 40 : 0;
 654                 $this->graphic_area_height = 150;
 655                 $this->height += 65;
 656                 break;
 657
 658             // Horizontal bars
 659             case 2:
 660                 $this->legend_box_height   = ($this->graphic_2_exists == true) ? 40 : 0;
 661                 $this->graphic_area_height = ($this->space_between_bars * $this->total_parameters) + 10;
 662                 $this->height += 65;
 663                 break;
 664
 665             // Dots
 666             case 3:
 667                 $this->legend_box_height   = ($this->graphic_2_exists == true) ? 40 : 0;
 668                 $this->graphic_area_height = 150;
 669                 $this->height += 65;
 670                 break;
 671
 672             // Lines
 673             case 4:
 674                 $this->legend_box_height   = ($this->graphic_2_exists == true) ? 40 : 0;
 675                 $this->graphic_area_height = 150;
 676                 $this->height += 65;
 677                 break;
 678
 679             // Pie
 680             case 5:
 681                 $this->legend_box_height   = (!empty($this->axis_x)) ? 30 : 5;
 682                 $this->legend_box_height  += (14 * $this->total_parameters);
 683                 $this->graphic_area_height = 150;
 684                 $this->height += 50;
 685                 break;
 686
 687             // Donut
 688             case 6:
 689                 $this->legend_box_height   = (!empty($this->axis_x)) ? 30 : 5;
 690                 $this->legend_box_height  += (14 * $this->total_parameters);
 691                 $this->graphic_area_height = 180;
 692                 $this->height += 50;
 693                 break;
 694         }
 695
 696         $this->height += $this->height_title;
 697         $this->height += ($this->legend_box_height > $this->graphic_area_height) ? ($this->legend_box_height - $this->graphic_area_height) : 0;
 698         $this->height += $this->graphic_area_height;
 699
 700         $this->graphic_area_y2 = $this->graphic_area_y1 + $this->graphic_area_height;
 701         $this->legend_box_y1   = $this->graphic_area_y1 + 10;
 702         $this->legend_box_y2   = $this->legend_box_y1 + $this->legend_box_height;
 703     }
 704
 705     function draw_legend()
 706     {
 707         $x1 = $this->legend_box_x1;
 708         $y1 = $this->legend_box_y1;
 709         $x2 = $this->legend_box_x2;
 710         $y2 = $this->legend_box_y2;
 711
 712         imagefilledrectangle($this->img, $x1, $y1, $x2, $y2, $this->color['bg_legend']);
 713
 714         $x = $x1 + 5;
 715         $y = $y1 + 5;
 716
 717
 718         // Draw legend values for VERTICAL BARS, HORIZONTAL BARS, DOTS and LINES
 719         if (preg_match("/^(1|2|3|4)$/", $this->type))
 720         {
 721             $color_1 = (preg_match("/^(1|2)$/", $this->type)) ? $this->color['bars']   : $this->color['line'];
 722             $color_2 = (preg_match("/^(1|2)$/", $this->type)) ? $this->color['bars_2'] : $this->color['line_2'];
 723
 724             imagefilledrectangle($this->img, $x, $y, ($x+10), ($y+10), $color_1);
 725             imagerectangle($this->img, $x, $y, ($x+10), ($y+10), $this->color['title']);
 726             $this->_imagestring($this->img, $this->size, ($x+15), ($y-2), $this->graphic_1, $this->color['axis_values']);
 727             $y += 20;
 728             imagefilledrectangle($this->img, $x, $y, ($x+10), ($y+10), $color_2);
 729             imagerectangle($this->img, $x, $y, ($x+10), ($y+10), $this->color['title']);
 730             $this->_imagestring($this->img, $this->size, ($x+15), ($y-2), $this->graphic_2, $this->color['axis_values']);
 731         }
 732
 733         // Draw legend values for PIE or DONUT
 734         else if (preg_match("/^(5|6)$/", $this->type))
 735         {
 736             if (!empty($this->axis_x))
 737             {
 738                 $this->_imagestring($this->img, $this->size, ((($x1+$x2)/2) - (strlen($this->axis_x)*7/2)), $y,
 739                         $this->axis_x." (".$this->graphic_1.")", $this->color['title']);
 740                 $y += 25;
 741             }
 742
 743             $num = 1;
 744
 745             foreach ($this->x as $i => $parameter)
 746             {
 747                 while ($num > 7)
 748                 {
 749                     $num -= 5;
 750                 }
 751                 $color = 'arc_' . $num;
 752
 753                 $percent = number_format(round(($this->y[$i] * 100 / $this->sum_total), 2), 2, ".", "") . ' %';
 754                 $less    = (strlen($percent) * 7);
 755
 756                 if ($num != 1)
 757                 {
 758                     imageline($this->img, ($x1+15), ($y-2), ($x2-5), ($y-2), $this->color['bg_lines']);
 759                 }
 760                 imagefilledrectangle($this->img, $x, $y, ($x+10), ($y+10), $this->color[$color]);
 761                 imagerectangle($this->img, $x, $y, ($x+10), ($y+10), $this->color['title']);
 762                 $this->_imagestring($this->img, $this->size, ($x+15), ($y-2), $parameter, $this->color['axis_values']);
 763                 $this->_imagestring($this->img, $this->size, ($x2-$less), ($y-2), $percent, $this->color['axis_values']);
 764                 $y += 14;
 765                 $num++;
 766             }
 767         }
 768     }
 769
 770
 771     function string_width($string, $size)
 772     {
 773         $single_width = $size + 4;
 774         return $single_width * strlen($string);
 775     }
 776
 777     function string_height($size)
 778     {
 779         if ($size <= 1)
 780         {
 781             $height = 8;
 782         }
 783         else if ($size <= 3)
 784         {
 785             $height = 12;
 786         }
 787         else if ($size >= 4)
 788         {
 789             $height = 14;
 790         }
 791         return $height;
 792     }
 793
 794     function calculate_higher_value()
 795     {
 796         $digits   = strlen(round($this->biggest_y));
 797         $interval = pow(10, ($digits-1));
 798         $this->higher_value     = round(($this->biggest_y - ($this->biggest_y % $interval) + $interval), 1);
 799         $this->higher_value_str = $this->number_formated($this->higher_value, $this->dec1);
 800     }
 801
 802     function number_formated($number, $dec_size = 1)
 803     {
 804         if ($this->latin_notation == true)
 805             return number_format(round($number, $dec_size), $dec_size, ",", ".");
 806         return number_format(round($number, $dec_size), $dec_size, ".", ",");
 807     }
 808
 809     function number_float($number)
 810     {
 811         if ($this->latin_notation == true)
 812             $number = str_replace(".", "", $number);
 813         return (float)str_replace(",", "", $number);
 814     }
 815
 816
 817     function draw_credits()
 818     {
 819         $this->_imagestring($this->img, $this->size - 2, ($this->width-120), ($this->height-10), "Powered by Carlos Reche", $this->color['title']);
 820     }
 821
 822
 823     function load_color_palette()
 824     {
 825         switch ($this->skin)
 826         {
 827             // Office
 828             case 1:
 829                 //$this->color['title']       = imagecolorallocate($this->img,  50,  50,  50);
 830                 $this->color['title']       = imagecolorallocate($this->img,  40,  70,  130);
 831                 //$this->color['background']  = imagecolorallocate($this->img, 238, 255, 238);
 832                 $this->color['background']  = imagecolorallocate($this->img, 255, 255, 255);
 833                 $this->color['axis_values'] = imagecolorallocate($this->img,  50,  50,  50);
 834                 $this->color['axis_line']   = imagecolorallocate($this->img, 100, 100, 100);
 835                 $this->color['bg_lines']    = imagecolorallocate($this->img, 220, 220, 220);
 836                 $this->color['bg_legend']   = imagecolorallocate($this->img, 255, 255, 255);
 837
 838                 if (preg_match("/^(1|2)$/", $this->type))
 839                 {
 840                     $this->color['bars']          = imagecolorallocate($this->img, 100, 150, 200);
 841                     $this->color['bars_shadow']   = imagecolorallocate($this->img,  50, 100, 150);
 842                     $this->color['bars_2']        = imagecolorallocate($this->img, 200, 250, 150);
 843                     $this->color['bars_2_shadow'] = imagecolorallocate($this->img, 120, 170,  70);
 844                 }
 845                 else if (preg_match("/^(3|4)$/", $this->type))
 846                 {
 847                     $this->color['line']   = imagecolorallocate($this->img, 100, 150, 200);
 848                     $this->color['line_2'] = imagecolorallocate($this->img, 230, 100, 100);
 849                 }
 850                 else if (preg_match("/^(5|6)$/", $this->type))
 851                 {
 852                     $this->color['arc_1']        = imagecolorallocate($this->img, 255, 150,   0);
 853                     $this->color['arc_2']        = imagecolorallocate($this->img, 150,   0, 255);
 854                     $this->color['arc_3']        = imagecolorallocate($this->img,   0, 255, 255);
 855                     $this->color['arc_4']        = imagecolorallocate($this->img, 255,   0,   0);
 856                     $this->color['arc_5']        = imagecolorallocate($this->img,   0, 255,   0);
 857                     $this->color['arc_6']        = imagecolorallocate($this->img,   0,   0, 255);
 858                     $this->color['arc_7']        = imagecolorallocate($this->img, 255, 255,   0);
 859                     $this->color['arc_1_shadow'] = imagecolorallocate($this->img, 127,  75,   0);
 860                     $this->color['arc_2_shadow'] = imagecolorallocate($this->img,  75,   0, 127);
 861                     $this->color['arc_3_shadow'] = imagecolorallocate($this->img,   0, 127, 127);
 862                     $this->color['arc_4_shadow'] = imagecolorallocate($this->img, 127,   0,   0);
 863                     $this->color['arc_5_shadow'] = imagecolorallocate($this->img,   0, 127,   0);
 864                     $this->color['arc_6_shadow'] = imagecolorallocate($this->img,   0,   0, 127);
 865                     $this->color['arc_7_shadow'] = imagecolorallocate($this->img, 127, 127,   0);
 866                 }
 867                 break;
 868
 869             // Matrix
 870             case 2:
 871                 $this->color['title']       = imagecolorallocate($this->img, 255, 255, 255);
 872                 $this->color['background']  = imagecolorallocate($this->img,   0,   0,   0);
 873                 $this->color['axis_values'] = imagecolorallocate($this->img,   0, 230,   0);
 874                 $this->color['axis_line']   = imagecolorallocate($this->img,   0, 200,   0);
 875                 $this->color['bg_lines']    = imagecolorallocate($this->img, 100, 100, 100);
 876                 $this->color['bg_legend']   = imagecolorallocate($this->img,  70,  70,  70);
 877
 878                 if (preg_match("/^(1|2)$/", $this->type))
 879                 {
 880                     $this->color['bars']          = imagecolorallocate($this->img,  50, 200,  50);
 881                     $this->color['bars_shadow']   = imagecolorallocate($this->img,   0, 150,   0);
 882                     $this->color['bars_2']        = imagecolorallocate($this->img, 255, 255, 255);
 883                     $this->color['bars_2_shadow'] = imagecolorallocate($this->img, 220, 220, 220);
 884                 }
 885                 else if (preg_match("/^(3|4)$/", $this->type))
 886                 {
 887                     $this->color['line']   = imagecolorallocate($this->img, 220, 220, 220);
 888                     $this->color['line_2'] = imagecolorallocate($this->img,   0, 180,   0);
 889                 }
 890                 else if (preg_match("/^(5|6)$/", $this->type))
 891                 {
 892                     $this->color['arc_1']        = imagecolorallocate($this->img, 255, 255, 255);
 893                     $this->color['arc_2']        = imagecolorallocate($this->img, 200, 220, 200);
 894                     $this->color['arc_3']        = imagecolorallocate($this->img, 160, 200, 160);
 895                     $this->color['arc_4']        = imagecolorallocate($this->img, 135, 180, 135);
 896                     $this->color['arc_5']        = imagecolorallocate($this->img, 115, 160, 115);
 897                     $this->color['arc_6']        = imagecolorallocate($this->img, 100, 140, 100);
 898                     $this->color['arc_7']        = imagecolorallocate($this->img,  90, 120,  90);
 899                     $this->color['arc_1_shadow'] = imagecolorallocate($this->img, 127, 127, 127);
 900                     $this->color['arc_2_shadow'] = imagecolorallocate($this->img, 100, 110, 100);
 901                     $this->color['arc_3_shadow'] = imagecolorallocate($this->img,  80, 100,  80);
 902                     $this->color['arc_4_shadow'] = imagecolorallocate($this->img,  67,  90,  67);
 903                     $this->color['arc_5_shadow'] = imagecolorallocate($this->img,  57,  80,  57);
 904                     $this->color['arc_6_shadow'] = imagecolorallocate($this->img,  50,  70,  50);
 905                     $this->color['arc_7_shadow'] = imagecolorallocate($this->img,  45,  60,  45);
 906                 }
 907                 break;
 908
 909
 910             // Spring
 911             case 3:
 912                 $this->color['title']       = imagecolorallocate($this->img, 250,  50,  50);
 913                 //$this->color['background']  = imagecolorallocate($this->img, 250, 250, 220);
 914                 $this->color['background']  = imagecolorallocate($this->img, 255, 255, 255);
 915                 $this->color['axis_values'] = imagecolorallocate($this->img,  50, 150,  50);
 916                 $this->color['axis_line']   = imagecolorallocate($this->img,  50, 100,  50);
 917                 $this->color['bg_lines']    = imagecolorallocate($this->img, 200, 224, 180);
 918                 //$this->color['bg_legend']   = imagecolorallocate($this->img, 230, 230, 200);
 919                 $this->color['bg_legend']   = imagecolorallocate($this->img, 255, 255, 255);
 920
 921                 if (preg_match("/^(1|2)$/", $this->type))
 922                 {
 923                     $this->color['bars']          = imagecolorallocate($this->img, 255, 170,  80);
 924                     $this->color['bars_shadow']   = imagecolorallocate($this->img, 200, 120,  30);
 925                     $this->color['bars_2']        = imagecolorallocate($this->img, 250, 230,  80);
 926                     $this->color['bars_2_shadow'] = imagecolorallocate($this->img, 180, 150,   0);
 927                 }
 928                 else if (preg_match("/^(3|4)$/", $this->type))
 929                 {
 930                     $this->color['line']   = imagecolorallocate($this->img, 230, 100,   0);
 931                     $this->color['line_2'] = imagecolorallocate($this->img, 220, 200,  50);
 932                 }
 933                 else if (preg_match("/^(5|6)$/", $this->type))
 934                 {
 935                     $this->color['arc_1']        = imagecolorallocate($this->img, 100, 150, 200);
 936                     $this->color['arc_2']        = imagecolorallocate($this->img, 200, 250, 150);
 937                     $this->color['arc_3']        = imagecolorallocate($this->img, 250, 200, 150);
 938                     $this->color['arc_4']        = imagecolorallocate($this->img, 250, 150, 150);
 939                     $this->color['arc_5']        = imagecolorallocate($this->img, 250, 250, 150);
 940                     $this->color['arc_6']        = imagecolorallocate($this->img, 230, 180, 250);
 941                     $this->color['arc_7']        = imagecolorallocate($this->img, 200, 200, 150);
 942                     $this->color['arc_1_shadow'] = imagecolorallocate($this->img,  50,  75, 100);
 943                     $this->color['arc_2_shadow'] = imagecolorallocate($this->img, 100, 125,  75);
 944                     $this->color['arc_3_shadow'] = imagecolorallocate($this->img, 125, 100,  75);
 945                     $this->color['arc_4_shadow'] = imagecolorallocate($this->img, 125,  75,  75);
 946                     $this->color['arc_5_shadow'] = imagecolorallocate($this->img, 125, 125,  75);
 947                     $this->color['arc_6_shadow'] = imagecolorallocate($this->img, 115,  90, 125);
 948                     $this->color['arc_7_shadow'] = imagecolorallocate($this->img, 100, 100,  75);
 949                 }
 950                 break;
 951
 952         }
 953     }
 954
 955     function _imagestring($img, $size, $x, $y, $string, $col, $alt=0)
 956     {
 957         if ($alt && strlen($string) > 12)
 958                 $string = substr($string, 0, 12);
 959
 960                 if ($this->encoding != 'UTF-8') {
 961                         if (function_exists('iconv'))
 962                                 $string = iconv($this->encoding, 'UTF-8', $string);
 963                         else
 964                                 $string = mb_convert_encoding($string, 'UTF-8', $this->encoding);
 965                 }
 966
 967         if ($this->built_in)
 968         {
 969                 imagestring($img, $size, $x, $y + $alt, $string, $col);
 970         }
 971         else
 972         {
 973                 if ($size == 1)
 974                         $size = 7;
 975                 else if ($size == 2)
 976                         $size = 8;
 977                 else if ($size == 3)
 978                         $size = 9;
 979                 else if ($size == 4)
 980                         $size = 11;
 981                 else
 982                         $size = 12;
 983                 $y += $size + 3;
 984                 //if ($alt)
 985                 //      $angle = -15;
 986                 //else
 987                                 $angle = 0;
 988
 989                 imagettftext($img, $size, $angle, $x, $y + $alt, $col, $this->fontfile, $string);
 990         }
 991     }
 992 }
 993 ?>