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
 151     function graph()
 152     {
 153         $this->x = $this->y = $this->z = array();
 154
 155         $this->biggest_x        = NULL;
 156         $this->biggest_y        = NULL;
 157         $this->alternate_x      = false;
 158         $this->graphic_2_exists = false;
 159         $this->total_parameters = 0;
 160         $this->sum_total        = 1;
 161                 $this->latin_notation   = false;
 162     }
 163
 164
 165     function display($save="", $border=false)
 166     {
 167         $this->legend_exists        = (preg_match("/(5|6)/", $this->type)) ? true : false;
 168         $this->biggest_graphic_name = (strlen($this->graphic_1) > strlen($this->graphic_2)) ? $this->graphic_1 : $this->graphic_2;
 169         $this->height_title         = (!empty($this->title)) ? ($this->string_height($this->tsize) + 15) : 0;
 170         $this->space_between_bars   = ($this->type == 1) ? 40 : 30;
 171         $this->space_between_dots   = 40;
 172         $this->higher_value         = 0;
 173         $this->higher_value_str     = 0;
 174
 175         $this->width               = 0;
 176         $this->height              = 0;
 177         $this->graphic_area_width  = 0;
 178         $this->graphic_area_height = 0;
 179         $this->graphic_area_x1     = 30;
 180         $this->graphic_area_y1     = 20 + $this->height_title;
 181         $this->graphic_area_x2     = $this->graphic_area_x1 + $this->graphic_area_width;
 182         $this->graphic_area_y2     = $this->graphic_area_y1 + $this->graphic_area_height;
 183
 184                 if (count($this->z) && (preg_match("/(1|2|3|4)/", $this->type)))
 185             $this->graphic_2_exists = true;
 186         $this->total_parameters    = count($this->x);
 187                 for ($i = 0; $i < $this->total_parameters; $i++)
 188                 {
 189                         if (strlen($this->x[$i]) > strlen($this->biggest_x))
 190                 $this->biggest_x = $this->x[$i];
 191                         if ($this->y[$i] > $this->biggest_y)
 192                 $this->biggest_y = number_format(round($this->y[$i], 1), 1, ".", "");
 193             if ($this->graphic_2_exists)
 194             {
 195                 if (isset($this->z[$i]) && $this->z[$i] > $this->biggest_y)
 196                         $this->biggest_y = number_format(round($this->z[$i], 1), 1, ".", "");
 197             }
 198         }
 199
 200         if (($this->graphic_2_exists == true)  &&  ((!empty($this->graphic_1)) || (!empty($this->graphic_2))))
 201         {
 202             $this->legend_exists = true;
 203         }
 204
 205         $this->sum_total           = array_sum($this->y);
 206         if ($this->sum_total == 0)
 207                 $this->sum_total = 1;
 208         $this->space_between_bars += ($this->graphic_2_exists == true) ? 10 : 0;
 209
 210         $this->calculate_higher_value();
 211         $this->calculate_width();
 212         $this->calculate_height();
 213
 214         $this->create_graphic($save, $border);
 215     }
 216
 217     function create_graphic($save="", $border=false)
 218     {
 219         $size = 3;
 220         $this->img = imagecreatetruecolor($this->width, $this->height);
 221
 222         $this->load_color_palette();
 223
 224         // Fill background
 225         imagefill($this->img, 0, 0, $this->color['background']);
 226         //imagefilledrectangle($this->img, 0, 0, $this->width, $this->height, $this->color['background']);
 227         //if ($border)
 228         //      imagerectangle($this->img, 0, 0, $this->width-1, $this->height-1, imagecolorallocate($this->img, 100, 150, 200));
 229
 230         // Draw title
 231         if (!empty($this->title))
 232         {
 233             $center = ($this->width / 2) - ($this->string_width($this->title, $this->tsize) / 2);
 234             $this->_imagestring($this->img, $this->tsize, $center, 10, $this->title, $this->color['title']);
 235         }
 236
 237
 238         // Draw axis and background lines for "vertical bars", "dots" and "lines"
 239         if (preg_match("/^(1|3|4)$/", $this->type))
 240         {
 241             if ($this->legend_exists == true)
 242             {
 243                 $this->draw_legend();
 244             }
 245
 246             $higher_value_y    = $this->graphic_area_y1 + (0.1 * $this->graphic_area_height);
 247             $higher_value_size = 0.9 * $this->graphic_area_height;
 248
 249             $less  = 7 * strlen($this->higher_value_str);
 250
 251             imageline($this->img, $this->graphic_area_x1, $higher_value_y, $this->graphic_area_x2, $higher_value_y, $this->color['bg_lines']);
 252             $this->_imagestring($this->img, $this->size, ($this->graphic_area_x1-$less-7), ($higher_value_y-7), $this->higher_value_str, $this->color['axis_values']);
 253
 254             for ($i = 1; $i < 10; $i++)
 255             {
 256                 $dec_y = $i * ($higher_value_size / 10);
 257                 $x1 = $this->graphic_area_x1;
 258                 $y1 = $this->graphic_area_y2 - $dec_y;
 259                 $x2 = $this->graphic_area_x2;
 260                 $y2 = $this->graphic_area_y2 - $dec_y;
 261
 262                 imageline($this->img, $x1, $y1, $x2, $y2, $this->color['bg_lines']);
 263                 if ($i % 2 == 0)
 264                 {
 265                     $value = $this->number_formated($this->higher_value * $i / 10, $this->dec1);
 266                     $less = 7 * strlen($value);
 267                     $this->_imagestring($this->img, $this->size, ($x1-$less-7), ($y2-7), $value, $this->color['axis_values']);
 268                 }
 269             }
 270
 271             // Axis X
 272             $this->_imagestring($this->img, $this->size, $this->graphic_area_x2+10, $this->graphic_area_y2+3, $this->axis_x, $this->color['title']);
 273             imageline($this->img, $this->graphic_area_x1, $this->graphic_area_y2, $this->graphic_area_x2, $this->graphic_area_y2, $this->color['axis_line']);
 274             // Axis Y
 275             $this->_imagestring($this->img, $this->size, 20, $this->graphic_area_y1-20, $this->axis_y, $this->color['title']);
 276             imageline($this->img, $this->graphic_area_x1, $this->graphic_area_y1, $this->graphic_area_x1, $this->graphic_area_y2, $this->color['axis_line']);
 277         }
 278
 279
 280         // Draw axis and background lines for "horizontal bars"
 281         else if ($this->type == 2)
 282         {
 283             if ($this->legend_exists == true)
 284             {
 285                 $this->draw_legend();
 286             }
 287
 288             $higher_value_x    = $this->graphic_area_x2 - (0.2 * $this->graphic_area_width);
 289             $higher_value_size = 0.8 * $this->graphic_area_width;
 290
 291             imageline($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']);
 292             $this->_imagestring($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, $this->color['axis_values']);
 293
 294             for ($i = 1, $alt = 15; $i < 10; $i++)
 295             {
 296                 $dec_x = number_format(round($i * ($higher_value_size  / 10), 1), 1, ".", "");
 297
 298                 imageline($this->img, ($this->graphic_area_x1+$dec_x), $this->graphic_area_y1, ($this->graphic_area_x1+$dec_x), $this->graphic_area_y2, $this->color['bg_lines']);
 299                 if ($i % 2 == 0)
 300                 {
 301                     $alt   = (strlen($this->biggest_y) > 4 && $alt != 15) ? 15 : 2;
 302                     $value = $this->number_formated($this->higher_value * $i / 10, $this->dec1);
 303                     $this->_imagestring($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);
 304                 }
 305             }
 306
 307             // Axis X
 308             $this->_imagestring($this->img, $this->size, ($this->graphic_area_x2+10), ($this->graphic_area_y2+3), $this->axis_y, $this->color['title']);
 309             imageline($this->img, $this->graphic_area_x1, $this->graphic_area_y2, $this->graphic_area_x2, $this->graphic_area_y2, $this->color['axis_line']);
 310             // Axis Y
 311             $this->_imagestring($this->img, $this->size, 20, ($this->graphic_area_y1-20), $this->axis_x, $this->color['title']);
 312             imageline($this->img, $this->graphic_area_x1, $this->graphic_area_y1, $this->graphic_area_x1, $this->graphic_area_y2, $this->color['axis_line']);
 313         }
 314
 315
 316         // Draw legend box for "pie" or "donut"
 317         else if (preg_match("/^(5|6)$/", $this->type))
 318         {
 319             $this->draw_legend();
 320         }
 321
 322
 323
 324         /**
 325         * Draw graphic: VERTICAL BARS
 326         */
 327         if ($this->type == 1)
 328         {
 329             $num = 1;
 330             $x   = $this->graphic_area_x1 + 20;
 331
 332             foreach ($this->x as $i => $parameter)
 333             {
 334                 if (isset($this->z[$i]))
 335                 {
 336                     $size = round($this->z[$i] * $higher_value_size / $this->higher_value);
 337                     $x1   = $x + 10;
 338                     $y1   = ($this->graphic_area_y2 - $size) + 1;
 339                     $x2   = $x1 + 20;
 340                     $y2   = $this->graphic_area_y2 - 1;
 341                     imageline($this->img, ($x1+1), ($y1-1), $x2, ($y1-1), $this->color['bars_2_shadow']);
 342                     imageline($this->img, ($x2+1), ($y1-1), ($x2+1), $y2, $this->color['bars_2_shadow']);
 343                     imageline($this->img, ($x2+2), ($y1-1), ($x2+2), $y2, $this->color['bars_2_shadow']);
 344                     imagefilledrectangle($this->img, $x1, $y1, $x2, $y2, $this->color['bars_2']);
 345                 }
 346
 347                 $size = round($this->y[$i] * $higher_value_size / $this->higher_value);
 348                 $alt  = (($num % 2 == 0) && (strlen($this->biggest_x) > 5)) ? 15 : 2;
 349                 $x1   = $x;
 350                 $y1   = ($this->graphic_area_y2 - $size) + 1;
 351                 $x2   = $x1 + 20;
 352                 $y2   = $this->graphic_area_y2 - 1;
 353                 $x   += $this->space_between_bars;
 354                 $num++;
 355
 356                 imageline($this->img, ($x1+1), ($y1-1), $x2, ($y1-1), $this->color['bars_shadow']);
 357                 imageline($this->img, ($x2+1), ($y1-1), ($x2+1), $y2, $this->color['bars_shadow']);
 358                 imageline($this->img, ($x2+2), ($y1-1), ($x2+2), $y2, $this->color['bars_shadow']);
 359                 imagefilledrectangle($this->img, $x1, $y1, $x2, $y2, $this->color['bars']);
 360                 $this->_imagestring($this->img, $this->size, ((($x1+$x2)/2) - (strlen($parameter)*7/2)), ($y2+2), $parameter, $this->color['axis_values'], $alt);
 361             }
 362         }
 363
 364
 365         /**
 366         * Draw graphic: HORIZONTAL BARS
 367         */
 368         else if ($this->type == 2)
 369         {
 370             $y = 10;
 371
 372             foreach ($this->x as $i => $parameter)
 373             {
 374                 if (isset($this->z[$i]))
 375                 {
 376                     $size = round($this->z[$i] * $higher_value_size / $this->higher_value);
 377                     $x1   = $this->graphic_area_x1 + 1;
 378                     $y1   = $this->graphic_area_y1 + $y + 10;
 379                     $x2   = $x1 + $size;
 380                     $y2   = $y1 + 15;
 381                     imageline($this->img, ($x1), ($y2+1), $x2, ($y2+1), $this->color['bars_2_shadow']);
 382                     imageline($this->img, ($x1), ($y2+2), $x2, ($y2+2), $this->color['bars_2_shadow']);
 383                     imageline($this->img, ($x2+1), ($y1+1), ($x2+1), ($y2+2), $this->color['bars_2_shadow']);
 384                     imagefilledrectangle($this->img, $x1, $y1, $x2, $y2, $this->color['bars_2']);
 385                     $this->_imagestring($this->img, $this->size, ($x2+7), ($y1+7), $this->number_formated($this->z[$i], $this->dec2), $this->color['bars_2_shadow']);
 386                 }
 387
 388                 $size = round(($this->y[$i] / $this->higher_value) * $higher_value_size);
 389                 $x1   = $this->graphic_area_x1 + 1;
 390                 $y1   = $this->graphic_area_y1 + $y;
 391                 $x2   = $x1 + $size;
 392                 $y2   = $y1 + 15;
 393                 $y   += $this->space_between_bars;
 394
 395                 imageline($this->img, ($x1), ($y2+1), $x2, ($y2+1), $this->color['bars_shadow']);
 396                 imageline($this->img, ($x1), ($y2+2), $x2, ($y2+2), $this->color['bars_shadow']);
 397                 imageline($this->img, ($x2+1), ($y1+1), ($x2+1), ($y2+2), $this->color['bars_shadow']);
 398                 imagefilledrectangle($this->img, $x1, $y1, $x2, $y2, $this->color['bars']);
 399                 $this->_imagestring($this->img, $this->size, ($x2+7), ($y1+2), $this->number_formated($this->y[$i], $this->dec2), $this->color['bars_shadow']);
 400
 401                 //$this->_imagestring($this->img, $this->size, ($x1 - ((strlen($parameter)*7)+7)), ($y1+2), $parameter, $this->color['axis_values']);
 402                 $this->_imagestring($this->img, $this->size, 30, ($y1+2), $parameter, $this->color['axis_values']);
 403             }
 404         }
 405
 406
 407         /**
 408         * Draw graphic: DOTS or LINE
 409         */
 410         else if (preg_match("/^(3|4)$/", $this->type))
 411         {
 412
 413             $x[0] = $this->graphic_area_x1+1;
 414
 415             foreach ($this->x as $i => $parameter)
 416             {
 417                 if ($this->graphic_2_exists == true)
 418                 {
 419                     $size  = round($this->z[$i] * $higher_value_size / $this->higher_value);
 420                     $z[$i] = $this->graphic_area_y2 - $size;
 421                 }
 422
 423                 $alt   = (($i % 2 == 0) && (strlen($this->biggest_x) > 5)) ? 15 : 2;
 424                 $size  = round($this->y[$i] * $higher_value_size / $this->higher_value);
 425                 $y[$i] = $this->graphic_area_y2 - $size;
 426
 427                 if ($i != 0)
 428                 {
 429                     imageline($this->img, $x[$i], ($this->graphic_area_y1+10), $x[$i], ($this->graphic_area_y2-1), $this->color['bg_lines']);
 430                 }
 431                 $this->_imagestring($this->img, $this->size, ($x[$i] - (strlen($parameter)*7/2 )), ($this->graphic_area_y2+2), $parameter, $this->color['axis_values'], $alt);
 432
 433                 $x[$i+1] = $x[$i] + 40;
 434             }
 435
 436             foreach ($x as $i => $value_x)
 437             {
 438                 if ($this->graphic_2_exists == true)
 439                 {
 440                     if (isset($z[$i+1]))
 441                     {
 442                         // Draw lines
 443                         if ($this->type == 4)
 444                         {
 445                             imageline($this->img, $x[$i], $z[$i], $x[$i+1], $z[$i+1], $this->color['line_2']);
 446                             imageline($this->img, $x[$i], ($z[$i]+1), $x[$i+1], ($z[$i+1]+1), $this->color['line_2']);
 447                         }
 448                         imagefilledrectangle($this->img, $x[$i]-1, $z[$i]-1, $x[$i]+2, $z[$i]+2, $this->color['line_2']);
 449                     }
 450                     else
 451                     { // Draw last dot
 452                         imagefilledrectangle($this->img, $x[$i-1]-1, $z[$i-1]-1, $x[$i-1]+2, $z[$i-1]+2, $this->color['line_2']);
 453                     }
 454                 }
 455
 456                 if (count($y) > 1)
 457                 {
 458                     if (isset($y[$i+1]))
 459                     {
 460                         // Draw lines
 461                         if ($this->type == 4)
 462                         {
 463                             imageline($this->img, $x[$i], $y[$i], $x[$i+1], $y[$i+1], $this->color['line']);
 464                             imageline($this->img, $x[$i], ($y[$i]+1), $x[$i+1], ($y[$i+1]+1), $this->color['line']);
 465                         }
 466                         imagefilledrectangle($this->img, $x[$i]-1, $y[$i]-1, $x[$i]+2, $y[$i]+2, $this->color['line']);
 467                     }
 468                     else
 469                     { // Draw last dot
 470                         imagefilledrectangle($this->img, $x[$i-1]-1, $y[$i-1]-1, $x[$i-1]+2, $y[$i-1]+2, $this->color['line']);
 471                     }
 472                 }
 473
 474             }
 475         }
 476
 477
 478         /**
 479         * Draw graphic: PIE or DONUT
 480         */
 481         else if (preg_match("/^(5|6)$/", $this->type))
 482         {
 483             $center_x = ($this->graphic_area_x1 + $this->graphic_area_x2) / 2;
 484             $center_y = ($this->graphic_area_y1 + $this->graphic_area_y2) / 2;
 485             $width    = $this->graphic_area_width;
 486             $height   = $this->graphic_area_height;
 487             $start    = 0;
 488             $sizes    = array();
 489
 490             foreach ($this->x as $i => $parameter)
 491             {
 492                 $size    = $this->y[$i] * 360 / $this->sum_total;
 493                 $sizes[] = $size;
 494                 $start  += $size;
 495             }
 496             $start = 270;
 497
 498             // Draw PIE
 499             if ($this->type == 5)
 500             {
 501                 // Draw shadow
 502                 foreach ($sizes as $i => $size)
 503                 {
 504                     $num_color = $i + 1;
 505                     while ($num_color > 7)
 506                     {
 507                         $num_color -= 5;
 508                     }
 509                     $color = 'arc_' . $num_color . '_shadow';
 510
 511                     for ($i = $this->h3d; $i >= 0; $i--)
 512                     {
 513                         //imagearc($this->img, $center_x, ($center_y+$i), $width, $height, $start, ($start+$size), $this->color[$color]);
 514                         imagefilledarc($this->img, $center_x, ($center_y+$i), $width, $height, $start, ($start+$size), $this->color[$color], IMG_ARC_NOFILL);
 515                     }
 516                     $start += $size;
 517                 }
 518
 519                 $start = 270;
 520
 521                 // Draw pieces
 522                 foreach ($sizes as $i => $size)
 523                 {
 524                     $num_color = $i + 1;
 525                     while ($num_color > 7)
 526                     {
 527                         $num_color -= 5;
 528                     }
 529                     $color = 'arc_' . $num_color;
 530
 531                     imagefilledarc($this->img, $center_x, $center_y, ($width+2), ($height+2), $start, ($start+$size), $this->color[$color], IMG_ARC_EDGED);
 532                     $start += $size;
 533                 }
 534             }
 535
 536             // Draw DONUT
 537             else if ($this->type == 6)
 538             {
 539                 foreach ($sizes as $i => $size)
 540                 {
 541                     $num_color = $i + 1;
 542                     while ($num_color > 7)
 543                     {
 544                         $num_color -= 5;
 545                     }
 546                     $color        = 'arc_' . $num_color;
 547                     $color_shadow = 'arc_' . $num_color . '_shadow';
 548                     imagefilledarc($this->img, $center_x, $center_y, $width, $height, $start, ($start+$size), $this->color[$color], IMG_ARC_PIE);
 549                     $start += $size;
 550                 }
 551                 imagefilledarc($this->img, $center_x, $center_y, 100, 100, 0, 360, $this->color['background'], IMG_ARC_PIE);
 552                 imagearc($this->img, $center_x, $center_y, 100, 100, 0, 360, $this->color['bg_legend']);
 553                 imagearc($this->img, $center_x, $center_y, ($width+1), ($height+1), 0, 360, $this->color['bg_legend']);
 554             }
 555         }
 556
 557
 558         if ($this->credits == true)
 559         {
 560             $this->draw_credits();
 561         }
 562                 if ($save != "")
 563                         imagepng($this->img, $save);
 564                 else
 565                 {
 566                 header('Content-type: image/png');
 567                 imagepng($this->img);
 568         }
 569         imagedestroy($this->img);
 570     }
 571
 572     function calculate_width()
 573     {
 574         switch ($this->type)
 575         {
 576             // Vertical bars
 577             case 1:
 578                 $this->legend_box_width   = ($this->legend_exists == true) ? ($this->string_width($this->biggest_graphic_name, $this->tsize) + 25) : 0;
 579                 $this->graphic_area_width = ($this->space_between_bars * $this->total_parameters) + 30;
 580                 $this->graphic_area_x1   += $this->string_width(($this->higher_value_str), $this->size);
 581                 $this->width += $this->graphic_area_x1 + 20;
 582                 $this->width += ($this->legend_exists == true) ? 50 : ((7 * strlen($this->axis_x)) + 10);
 583                 break;
 584
 585             // Horizontal bars
 586             case 2:
 587                 $this->legend_box_width   = ($this->legend_exists == true) ? ($this->string_width($this->biggest_graphic_name, $this->size) + 25) : 0;
 588                 $this->graphic_area_width = ($this->string_width($this->higher_value_str, $this->size) > 50) ? (5 * ($this->string_width($this->higher_value_str, $this->size)) * 0.85) : 200;
 589                 $this->graphic_area_x1 += 7 * strlen($this->biggest_x);
 590                 $this->width += ($this->legend_exists == true) ? 60 : ((7 * strlen($this->axis_y)) + 30);
 591                 $this->width += $this->graphic_area_x1;
 592                 break;
 593
 594             // Dots
 595             case 3:
 596                 $this->legend_box_width   = ($this->legend_exists == true) ? ($this->string_width($this->biggest_graphic_name, $this->size) + 25) : 0;
 597                 $this->graphic_area_width = ($this->space_between_dots * $this->total_parameters) - 10;
 598                 $this->graphic_area_x1   += $this->string_width(($this->higher_value_str), $this->size);
 599                 $this->width += $this->graphic_area_x1 + 20;
 600                 $this->width += ($this->legend_exists == true) ? 40 : ((7 * strlen($this->axis_x)) + 10);
 601                 break;
 602
 603             // Lines
 604             case 4:
 605                 $this->legend_box_width   = ($this->legend_exists == true) ? ($this->string_width($this->biggest_graphic_name, $this->size) + 25) : 0;
 606                 $this->graphic_area_width = ($this->space_between_dots * $this->total_parameters) - 10;
 607                 $this->graphic_area_x1   += $this->string_width(($this->higher_value_str), $this->size);
 608                 $this->width += $this->graphic_area_x1 + 20;
 609                 $this->width += ($this->legend_exists == true) ? 40 : ((7 * strlen($this->axis_x)) + 10);
 610                 break;
 611
 612             // Pie
 613             case 5:
 614                 $this->legend_box_width   = $this->string_width($this->biggest_x, $this->size) + 85;
 615                 $this->graphic_area_width = 200;
 616                 $this->width += 90;
 617                 break;
 618
 619             // Donut
 620             case 6:
 621                 $this->legend_box_width   = $this->string_width($this->biggest_x, $this->size) + 85;
 622                 $this->graphic_area_width = 180;
 623                 $this->width += 90;
 624                 break;
 625         }
 626
 627         $this->width += $this->graphic_area_width;
 628         $this->width += $this->legend_box_width;
 629
 630
 631         $this->graphic_area_x2 = $this->graphic_area_x1 + $this->graphic_area_width;
 632         $this->legend_box_x1   = $this->graphic_area_x2 + 40;
 633         $this->legend_box_x2   = $this->legend_box_x1 + $this->legend_box_width;
 634     }
 635
 636     function calculate_height()
 637     {
 638         switch ($this->type)
 639         {
 640             // Vertical bars
 641             case 1:
 642                 $this->legend_box_height   = ($this->graphic_2_exists == true) ? 40 : 0;
 643                 $this->graphic_area_height = 150;
 644                 $this->height += 65;
 645                 break;
 646
 647             // Horizontal bars
 648             case 2:
 649                 $this->legend_box_height   = ($this->graphic_2_exists == true) ? 40 : 0;
 650                 $this->graphic_area_height = ($this->space_between_bars * $this->total_parameters) + 10;
 651                 $this->height += 65;
 652                 break;
 653
 654             // Dots
 655             case 3:
 656                 $this->legend_box_height   = ($this->graphic_2_exists == true) ? 40 : 0;
 657                 $this->graphic_area_height = 150;
 658                 $this->height += 65;
 659                 break;
 660
 661             // Lines
 662             case 4:
 663                 $this->legend_box_height   = ($this->graphic_2_exists == true) ? 40 : 0;
 664                 $this->graphic_area_height = 150;
 665                 $this->height += 65;
 666                 break;
 667
 668             // Pie
 669             case 5:
 670                 $this->legend_box_height   = (!empty($this->axis_x)) ? 30 : 5;
 671                 $this->legend_box_height  += (14 * $this->total_parameters);
 672                 $this->graphic_area_height = 150;
 673                 $this->height += 50;
 674                 break;
 675
 676             // Donut
 677             case 6:
 678                 $this->legend_box_height   = (!empty($this->axis_x)) ? 30 : 5;
 679                 $this->legend_box_height  += (14 * $this->total_parameters);
 680                 $this->graphic_area_height = 180;
 681                 $this->height += 50;
 682                 break;
 683         }
 684
 685         $this->height += $this->height_title;
 686         $this->height += ($this->legend_box_height > $this->graphic_area_height) ? ($this->legend_box_height - $this->graphic_area_height) : 0;
 687         $this->height += $this->graphic_area_height;
 688
 689         $this->graphic_area_y2 = $this->graphic_area_y1 + $this->graphic_area_height;
 690         $this->legend_box_y1   = $this->graphic_area_y1 + 10;
 691         $this->legend_box_y2   = $this->legend_box_y1 + $this->legend_box_height;
 692     }
 693
 694     function draw_legend()
 695     {
 696         $x1 = $this->legend_box_x1;
 697         $y1 = $this->legend_box_y1;
 698         $x2 = $this->legend_box_x2;
 699         $y2 = $this->legend_box_y2;
 700
 701         imagefilledrectangle($this->img, $x1, $y1, $x2, $y2, $this->color['bg_legend']);
 702
 703         $x = $x1 + 5;
 704         $y = $y1 + 5;
 705
 706
 707         // Draw legend values for VERTICAL BARS, HORIZONTAL BARS, DOTS and LINES
 708         if (preg_match("/^(1|2|3|4)$/", $this->type))
 709         {
 710             $color_1 = (preg_match("/^(1|2)$/", $this->type)) ? $this->color['bars']   : $this->color['line'];
 711             $color_2 = (preg_match("/^(1|2)$/", $this->type)) ? $this->color['bars_2'] : $this->color['line_2'];
 712
 713             imagefilledrectangle($this->img, $x, $y, ($x+10), ($y+10), $color_1);
 714             imagerectangle($this->img, $x, $y, ($x+10), ($y+10), $this->color['title']);
 715             $this->_imagestring($this->img, $this->size, ($x+15), ($y-2), $this->graphic_1, $this->color['axis_values']);
 716             $y += 20;
 717             imagefilledrectangle($this->img, $x, $y, ($x+10), ($y+10), $color_2);
 718             imagerectangle($this->img, $x, $y, ($x+10), ($y+10), $this->color['title']);
 719             $this->_imagestring($this->img, $this->size, ($x+15), ($y-2), $this->graphic_2, $this->color['axis_values']);
 720         }
 721
 722         // Draw legend values for PIE or DONUT
 723         else if (preg_match("/^(5|6)$/", $this->type))
 724         {
 725             if (!empty($this->axis_x))
 726             {
 727                 $this->_imagestring($this->img, $this->size, ((($x1+$x2)/2) - (strlen($this->axis_x)*7/2)), $y, $this->axis_x, $this->color['title']);
 728                 $y += 25;
 729             }
 730
 731             $num = 1;
 732
 733             foreach ($this->x as $i => $parameter)
 734             {
 735                 while ($num > 7)
 736                 {
 737                     $num -= 5;
 738                 }
 739                 $color = 'arc_' . $num;
 740
 741                 $percent = number_format(round(($this->y[$i] * 100 / $this->sum_total), 2), 2, ".", "") . ' %';
 742                 $less    = (strlen($percent) * 7);
 743
 744                 if ($num != 1)
 745                 {
 746                     imageline($this->img, ($x1+15), ($y-2), ($x2-5), ($y-2), $this->color['bg_lines']);
 747                 }
 748                 imagefilledrectangle($this->img, $x, $y, ($x+10), ($y+10), $this->color[$color]);
 749                 imagerectangle($this->img, $x, $y, ($x+10), ($y+10), $this->color['title']);
 750                 $this->_imagestring($this->img, $this->size, ($x+15), ($y-2), $parameter, $this->color['axis_values']);
 751                 $this->_imagestring($this->img, $this->size, ($x2-$less), ($y-2), $percent, $this->color['axis_values']);
 752                 $y += 14;
 753                 $num++;
 754             }
 755         }
 756     }
 757
 758
 759     function string_width($string, $size)
 760     {
 761         $single_width = $size + 4;
 762         return $single_width * strlen($string);
 763     }
 764
 765     function string_height($size)
 766     {
 767         if ($size <= 1)
 768         {
 769             $height = 8;
 770         }
 771         else if ($size <= 3)
 772         {
 773             $height = 12;
 774         }
 775         else if ($size >= 4)
 776         {
 777             $height = 14;
 778         }
 779         return $height;
 780     }
 781
 782     function calculate_higher_value()
 783     {
 784         $digits   = strlen(round($this->biggest_y));
 785         $interval = pow(10, ($digits-1));
 786         $this->higher_value     = round(($this->biggest_y - ($this->biggest_y % $interval) + $interval), 1);
 787         $this->higher_value_str = $this->number_formated($this->higher_value, $this->dec1);
 788     }
 789
 790     function number_formated($number, $dec_size = 1)
 791     {
 792         if ($this->latin_notation == true)
 793             return number_format(round($number, $dec_size), $dec_size, ",", ".");
 794         return number_format(round($number, $dec_size), $dec_size, ".", ",");
 795     }
 796
 797     function number_float($number)
 798     {
 799         if ($this->latin_notation == true)
 800             $number = str_replace(".", "", $number);
 801         return (float)str_replace(",", "", $number);
 802     }
 803
 804
 805     function draw_credits()
 806     {
 807         $this->_imagestring($this->img, $this->size - 2, ($this->width-120), ($this->height-10), "Powered by Carlos Reche", $this->color['title']);
 808     }
 809
 810
 811     function load_color_palette()
 812     {
 813         switch ($this->skin)
 814         {
 815             // Office
 816             case 1:
 817                 //$this->color['title']       = imagecolorallocate($this->img,  50,  50,  50);
 818                 $this->color['title']       = imagecolorallocate($this->img,  40,  70,  130);
 819                 //$this->color['background']  = imagecolorallocate($this->img, 238, 255, 238);
 820                 $this->color['background']  = imagecolorallocate($this->img, 255, 255, 255);
 821                 $this->color['axis_values'] = imagecolorallocate($this->img,  50,  50,  50);
 822                 $this->color['axis_line']   = imagecolorallocate($this->img, 100, 100, 100);
 823                 $this->color['bg_lines']    = imagecolorallocate($this->img, 220, 220, 220);
 824                 $this->color['bg_legend']   = imagecolorallocate($this->img, 255, 255, 255);
 825
 826                 if (preg_match("/^(1|2)$/", $this->type))
 827                 {
 828                     $this->color['bars']          = imagecolorallocate($this->img, 100, 150, 200);
 829                     $this->color['bars_shadow']   = imagecolorallocate($this->img,  50, 100, 150);
 830                     $this->color['bars_2']        = imagecolorallocate($this->img, 200, 250, 150);
 831                     $this->color['bars_2_shadow'] = imagecolorallocate($this->img, 120, 170,  70);
 832                 }
 833                 else if (preg_match("/^(3|4)$/", $this->type))
 834                 {
 835                     $this->color['line']   = imagecolorallocate($this->img, 100, 150, 200);
 836                     $this->color['line_2'] = imagecolorallocate($this->img, 230, 100, 100);
 837                 }
 838                 else if (preg_match("/^(5|6)$/", $this->type))
 839                 {
 840                     $this->color['arc_1']        = imagecolorallocate($this->img, 255, 150,   0);
 841                     $this->color['arc_2']        = imagecolorallocate($this->img, 150,   0, 255);
 842                     $this->color['arc_3']        = imagecolorallocate($this->img,   0, 255, 255);
 843                     $this->color['arc_4']        = imagecolorallocate($this->img, 255,   0,   0);
 844                     $this->color['arc_5']        = imagecolorallocate($this->img,   0, 255,   0);
 845                     $this->color['arc_6']        = imagecolorallocate($this->img,   0,   0, 255);
 846                     $this->color['arc_7']        = imagecolorallocate($this->img, 255, 255,   0);
 847                     $this->color['arc_1_shadow'] = imagecolorallocate($this->img, 127,  75,   0);
 848                     $this->color['arc_2_shadow'] = imagecolorallocate($this->img,  75,   0, 127);
 849                     $this->color['arc_3_shadow'] = imagecolorallocate($this->img,   0, 127, 127);
 850                     $this->color['arc_4_shadow'] = imagecolorallocate($this->img, 127,   0,   0);
 851                     $this->color['arc_5_shadow'] = imagecolorallocate($this->img,   0, 127,   0);
 852                     $this->color['arc_6_shadow'] = imagecolorallocate($this->img,   0,   0, 127);
 853                     $this->color['arc_7_shadow'] = imagecolorallocate($this->img, 127, 127,   0);
 854                 }
 855                 break;
 856
 857             // Matrix
 858             case 2:
 859                 $this->color['title']       = imagecolorallocate($this->img, 255, 255, 255);
 860                 $this->color['background']  = imagecolorallocate($this->img,   0,   0,   0);
 861                 $this->color['axis_values'] = imagecolorallocate($this->img,   0, 230,   0);
 862                 $this->color['axis_line']   = imagecolorallocate($this->img,   0, 200,   0);
 863                 $this->color['bg_lines']    = imagecolorallocate($this->img, 100, 100, 100);
 864                 $this->color['bg_legend']   = imagecolorallocate($this->img,  70,  70,  70);
 865
 866                 if (preg_match("/^(1|2)$/", $this->type))
 867                 {
 868                     $this->color['bars']          = imagecolorallocate($this->img,  50, 200,  50);
 869                     $this->color['bars_shadow']   = imagecolorallocate($this->img,   0, 150,   0);
 870                     $this->color['bars_2']        = imagecolorallocate($this->img, 255, 255, 255);
 871                     $this->color['bars_2_shadow'] = imagecolorallocate($this->img, 220, 220, 220);
 872                 }
 873                 else if (preg_match("/^(3|4)$/", $this->type))
 874                 {
 875                     $this->color['line']   = imagecolorallocate($this->img, 220, 220, 220);
 876                     $this->color['line_2'] = imagecolorallocate($this->img,   0, 180,   0);
 877                 }
 878                 else if (preg_match("/^(5|6)$/", $this->type))
 879                 {
 880                     $this->color['arc_1']        = imagecolorallocate($this->img, 255, 255, 255);
 881                     $this->color['arc_2']        = imagecolorallocate($this->img, 200, 220, 200);
 882                     $this->color['arc_3']        = imagecolorallocate($this->img, 160, 200, 160);
 883                     $this->color['arc_4']        = imagecolorallocate($this->img, 135, 180, 135);
 884                     $this->color['arc_5']        = imagecolorallocate($this->img, 115, 160, 115);
 885                     $this->color['arc_6']        = imagecolorallocate($this->img, 100, 140, 100);
 886                     $this->color['arc_7']        = imagecolorallocate($this->img,  90, 120,  90);
 887                     $this->color['arc_1_shadow'] = imagecolorallocate($this->img, 127, 127, 127);
 888                     $this->color['arc_2_shadow'] = imagecolorallocate($this->img, 100, 110, 100);
 889                     $this->color['arc_3_shadow'] = imagecolorallocate($this->img,  80, 100,  80);
 890                     $this->color['arc_4_shadow'] = imagecolorallocate($this->img,  67,  90,  67);
 891                     $this->color['arc_5_shadow'] = imagecolorallocate($this->img,  57,  80,  57);
 892                     $this->color['arc_6_shadow'] = imagecolorallocate($this->img,  50,  70,  50);
 893                     $this->color['arc_7_shadow'] = imagecolorallocate($this->img,  45,  60,  45);
 894                 }
 895                 break;
 896
 897
 898             // Spring
 899             case 3:
 900                 $this->color['title']       = imagecolorallocate($this->img, 250,  50,  50);
 901                 //$this->color['background']  = imagecolorallocate($this->img, 250, 250, 220);
 902                 $this->color['background']  = imagecolorallocate($this->img, 255, 255, 255);
 903                 $this->color['axis_values'] = imagecolorallocate($this->img,  50, 150,  50);
 904                 $this->color['axis_line']   = imagecolorallocate($this->img,  50, 100,  50);
 905                 $this->color['bg_lines']    = imagecolorallocate($this->img, 200, 224, 180);
 906                 //$this->color['bg_legend']   = imagecolorallocate($this->img, 230, 230, 200);
 907                 $this->color['bg_legend']   = imagecolorallocate($this->img, 255, 255, 255);
 908
 909                 if (preg_match("/^(1|2)$/", $this->type))
 910                 {
 911                     $this->color['bars']          = imagecolorallocate($this->img, 255, 170,  80);
 912                     $this->color['bars_shadow']   = imagecolorallocate($this->img, 200, 120,  30);
 913                     $this->color['bars_2']        = imagecolorallocate($this->img, 250, 230,  80);
 914                     $this->color['bars_2_shadow'] = imagecolorallocate($this->img, 180, 150,   0);
 915                 }
 916                 else if (preg_match("/^(3|4)$/", $this->type))
 917                 {
 918                     $this->color['line']   = imagecolorallocate($this->img, 230, 100,   0);
 919                     $this->color['line_2'] = imagecolorallocate($this->img, 220, 200,  50);
 920                 }
 921                 else if (preg_match("/^(5|6)$/", $this->type))
 922                 {
 923                     $this->color['arc_1']        = imagecolorallocate($this->img, 100, 150, 200);
 924                     $this->color['arc_2']        = imagecolorallocate($this->img, 200, 250, 150);
 925                     $this->color['arc_3']        = imagecolorallocate($this->img, 250, 200, 150);
 926                     $this->color['arc_4']        = imagecolorallocate($this->img, 250, 150, 150);
 927                     $this->color['arc_5']        = imagecolorallocate($this->img, 250, 250, 150);
 928                     $this->color['arc_6']        = imagecolorallocate($this->img, 230, 180, 250);
 929                     $this->color['arc_7']        = imagecolorallocate($this->img, 200, 200, 150);
 930                     $this->color['arc_1_shadow'] = imagecolorallocate($this->img,  50,  75, 100);
 931                     $this->color['arc_2_shadow'] = imagecolorallocate($this->img, 100, 125,  75);
 932                     $this->color['arc_3_shadow'] = imagecolorallocate($this->img, 125, 100,  75);
 933                     $this->color['arc_4_shadow'] = imagecolorallocate($this->img, 125,  75,  75);
 934                     $this->color['arc_5_shadow'] = imagecolorallocate($this->img, 125, 125,  75);
 935                     $this->color['arc_6_shadow'] = imagecolorallocate($this->img, 115,  90, 125);
 936                     $this->color['arc_7_shadow'] = imagecolorallocate($this->img, 100, 100,  75);
 937                 }
 938                 break;
 939
 940         }
 941     }
 942
 943     function _imagestring($img, $size, $x, $y, $string, $col, $alt=0)
 944     {
 945         if ($alt && strlen($string) > 12)
 946                 $string = substr($string, 0, 12);
 947         if ($this->built_in)
 948         {
 949                 imagestring($img, $size, $x, $y + $alt, $string, $col);
 950         }
 951         else
 952         {
 953                 if ($size == 1)
 954                         $size = 7;
 955                 else if ($size == 2)
 956                         $size = 8;
 957                 else if ($size == 3)
 958                         $size = 9;
 959                 else if ($size == 4)
 960                         $size = 11;
 961                 else
 962                         $size = 12;
 963                 $y += $size + 3;
 964                 //if ($alt)
 965                 //      $angle = -15;
 966                 //else
 967                                 $angle = 0;
 968                 imagettftext($img, $size, $angle, $x, $y + $alt, $col, $this->fontfile, $string);
 969         }
 970     }
 971 }
 972 ?>