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
 154         $this->x = $this->y = $this->z = array();
 155
 156         $this->biggest_x        = NULL;
 157         $this->biggest_y        = NULL;
 158         $this->alternate_x      = false;
 159         $this->graphic_2_exists = false;
 160         $this->total_parameters = 0;
 161         $this->sum_total        = 1;
 162                 $this->latin_notation   = false;
 163     }
 164
 165
 166     function display($save="", $border=false)
 167     {
 168         $this->legend_exists        = (preg_match("/(5|6)/", $this->type)) ? true : false;
 169         $this->biggest_graphic_name = (strlen($this->graphic_1) > strlen($this->graphic_2)) ? $this->graphic_1 : $this->graphic_2;
 170         $this->height_title         = (!empty($this->title)) ? ($this->string_height($this->tsize) + 15) : 0;
 171         $this->space_between_bars   = ($this->type == 1) ? 40 : 30;
 172         $this->space_between_dots   = 40;
 173         $this->higher_value         = 0;
 174         $this->higher_value_str     = 0;
 175
 176         $this->width               = 0;
 177         $this->height              = 0;
 178         $this->graphic_area_width  = 0;
 179         $this->graphic_area_height = 0;
 180         $this->graphic_area_x1     = 30;
 181         $this->graphic_area_y1     = 20 + $this->height_title;
 182         $this->graphic_area_x2     = $this->graphic_area_x1 + $this->graphic_area_width;
 183         $this->graphic_area_y2     = $this->graphic_area_y1 + $this->graphic_area_height;
 184
 185                 if (count($this->z) && (preg_match("/(1|2|3|4)/", $this->type)))
 186             $this->graphic_2_exists = true;
 187         $this->total_parameters    = count($this->x);
 188                 for ($i = 0; $i < $this->total_parameters; $i++)
 189                 {
 190                         if (strlen($this->x[$i]) > strlen($this->biggest_x))
 191                 $this->biggest_x = $this->x[$i];
 192                         if ($this->y[$i] > $this->biggest_y)
 193                 $this->biggest_y = number_format(round($this->y[$i], 1), 1, ".", "");
 194             if ($this->graphic_2_exists)
 195             {
 196                 if (isset($this->z[$i]) && $this->z[$i] > $this->biggest_y)
 197                         $this->biggest_y = number_format(round($this->z[$i], 1), 1, ".", "");
 198             }
 199         }
 200
 201         if (($this->graphic_2_exists == true)  &&  ((!empty($this->graphic_1)) || (!empty($this->graphic_2))))
 202         {
 203             $this->legend_exists = true;
 204         }
 205
 206         $this->sum_total           = array_sum($this->y);
 207         if ($this->sum_total == 0)
 208                 $this->sum_total = 1;
 209         $this->space_between_bars += ($this->graphic_2_exists == true) ? 10 : 0;
 210
 211         $this->calculate_higher_value();
 212         $this->calculate_width();
 213         $this->calculate_height();
 214
 215         $this->create_graphic($save, $border);
 216     }
 217
 218     function create_graphic($save="", $border=false)
 219     {
 220         $size = 3;
 221         $this->img = imagecreatetruecolor($this->width, $this->height);
 222
 223         $this->load_color_palette();
 224
 225         // Fill background
 226         imagefill($this->img, 0, 0, $this->color['background']);
 227         //imagefilledrectangle($this->img, 0, 0, $this->width, $this->height, $this->color['background']);
 228         //if ($border)
 229         //      imagerectangle($this->img, 0, 0, $this->width-1, $this->height-1, imagecolorallocate($this->img, 100, 150, 200));
 230
 231         // Draw title
 232         if (!empty($this->title))
 233         {
 234             $center = ($this->width / 2) - ($this->string_width($this->title, $this->tsize) / 2);
 235             $this->_imagestring($this->img, $this->tsize, $center, 10, $this->title, $this->color['title']);
 236         }
 237
 238
 239         // Draw axis and background lines for "vertical bars", "dots" and "lines"
 240         if (preg_match("/^(1|3|4)$/", $this->type))
 241         {
 242             if ($this->legend_exists == true)
 243             {
 244                 $this->draw_legend();
 245             }
 246
 247             $higher_value_y    = $this->graphic_area_y1 + (0.1 * $this->graphic_area_height);
 248             $higher_value_size = 0.9 * $this->graphic_area_height;
 249
 250             $less  = 7 * strlen($this->higher_value_str);
 251
 252             imageline($this->img, $this->graphic_area_x1, $higher_value_y, $this->graphic_area_x2, $higher_value_y, $this->color['bg_lines']);
 253             $this->_imagestring($this->img, $this->size, ($this->graphic_area_x1-$less-7), ($higher_value_y-7), $this->higher_value_str, $this->color['axis_values']);
 254
 255             for ($i = 1; $i < 10; $i++)
 256             {
 257                 $dec_y = $i * ($higher_value_size / 10);
 258                 $x1 = $this->graphic_area_x1;
 259                 $y1 = $this->graphic_area_y2 - $dec_y;
 260                 $x2 = $this->graphic_area_x2;
 261                 $y2 = $this->graphic_area_y2 - $dec_y;
 262
 263                 imageline($this->img, $x1, $y1, $x2, $y2, $this->color['bg_lines']);
 264                 if ($i % 2 == 0)
 265                 {
 266                     $value = $this->number_formated($this->higher_value * $i / 10, $this->dec1);
 267                     $less = 7 * strlen($value);
 268                     $this->_imagestring($this->img, $this->size, ($x1-$less-7), ($y2-7), $value, $this->color['axis_values']);
 269                 }
 270             }
 271
 272             // Axis X
 273             $this->_imagestring($this->img, $this->size, $this->graphic_area_x2+10, $this->graphic_area_y2+3, $this->axis_x, $this->color['title']);
 274             imageline($this->img, $this->graphic_area_x1, $this->graphic_area_y2, $this->graphic_area_x2, $this->graphic_area_y2, $this->color['axis_line']);
 275             // Axis Y
 276             $this->_imagestring($this->img, $this->size, 20, $this->graphic_area_y1-20, $this->axis_y, $this->color['title']);
 277             imageline($this->img, $this->graphic_area_x1, $this->graphic_area_y1, $this->graphic_area_x1, $this->graphic_area_y2, $this->color['axis_line']);
 278         }
 279
 280
 281         // Draw axis and background lines for "horizontal bars"
 282         else if ($this->type == 2)
 283         {
 284             if ($this->legend_exists == true)
 285             {
 286                 $this->draw_legend();
 287             }
 288
 289             $higher_value_x    = $this->graphic_area_x2 - (0.2 * $this->graphic_area_width);
 290             $higher_value_size = 0.8 * $this->graphic_area_width;
 291
 292             imageline($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']);
 293             $this->_imagestring($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, $this->color['axis_values']);
 294
 295             for ($i = 1, $alt = 15; $i < 10; $i++)
 296             {
 297                 $dec_x = number_format(round($i * ($higher_value_size  / 10), 1), 1, ".", "");
 298
 299                 imageline($this->img, ($this->graphic_area_x1+$dec_x), $this->graphic_area_y1, ($this->graphic_area_x1+$dec_x), $this->graphic_area_y2, $this->color['bg_lines']);
 300                 if ($i % 2 == 0)
 301                 {
 302                     $alt   = (strlen($this->biggest_y) > 4 && $alt != 15) ? 15 : 2;
 303                     $value = $this->number_formated($this->higher_value * $i / 10, $this->dec1);
 304                     $this->_imagestring($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);
 305                 }
 306             }
 307
 308             // Axis X
 309             $this->_imagestring($this->img, $this->size, ($this->graphic_area_x2+10), ($this->graphic_area_y2+3), $this->axis_y, $this->color['title']);
 310             imageline($this->img, $this->graphic_area_x1, $this->graphic_area_y2, $this->graphic_area_x2, $this->graphic_area_y2, $this->color['axis_line']);
 311             // Axis Y
 312             $this->_imagestring($this->img, $this->size, 20, ($this->graphic_area_y1-20), $this->axis_x, $this->color['title']);
 313             imageline($this->img, $this->graphic_area_x1, $this->graphic_area_y1, $this->graphic_area_x1, $this->graphic_area_y2, $this->color['axis_line']);
 314         }
 315
 316
 317         // Draw legend box for "pie" or "donut"
 318         else if (preg_match("/^(5|6)$/", $this->type))
 319         {
 320             $this->draw_legend();
 321         }
 322
 323
 324
 325         /**
 326         * Draw graphic: VERTICAL BARS
 327         */
 328         if ($this->type == 1)
 329         {
 330             $num = 1;
 331             $x   = $this->graphic_area_x1 + 20;
 332
 333             foreach ($this->x as $i => $parameter)
 334             {
 335                 if (isset($this->z[$i]))
 336                 {
 337                     $size = round($this->z[$i] * $higher_value_size / $this->higher_value);
 338                     $x1   = $x + 10;
 339                     $y1   = ($this->graphic_area_y2 - $size) + 1;
 340                     $x2   = $x1 + 20;
 341                     $y2   = $this->graphic_area_y2 - 1;
 342                     imageline($this->img, ($x1+1), ($y1-1), $x2, ($y1-1), $this->color['bars_2_shadow']);
 343                     imageline($this->img, ($x2+1), ($y1-1), ($x2+1), $y2, $this->color['bars_2_shadow']);
 344                     imageline($this->img, ($x2+2), ($y1-1), ($x2+2), $y2, $this->color['bars_2_shadow']);
 345                     imagefilledrectangle($this->img, $x1, $y1, $x2, $y2, $this->color['bars_2']);
 346                 }
 347
 348                 $size = round($this->y[$i] * $higher_value_size / $this->higher_value);
 349                 $alt  = (($num % 2 == 0) && (strlen($this->biggest_x) > 5)) ? 15 : 2;
 350                 $x1   = $x;
 351                 $y1   = ($this->graphic_area_y2 - $size) + 1;
 352                 $x2   = $x1 + 20;
 353                 $y2   = $this->graphic_area_y2 - 1;
 354                 $x   += $this->space_between_bars;
 355                 $num++;
 356
 357                 imageline($this->img, ($x1+1), ($y1-1), $x2, ($y1-1), $this->color['bars_shadow']);
 358                 imageline($this->img, ($x2+1), ($y1-1), ($x2+1), $y2, $this->color['bars_shadow']);
 359                 imageline($this->img, ($x2+2), ($y1-1), ($x2+2), $y2, $this->color['bars_shadow']);
 360                 imagefilledrectangle($this->img, $x1, $y1, $x2, $y2, $this->color['bars']);
 361                 $this->_imagestring($this->img, $this->size, ((($x1+$x2)/2) - (strlen($parameter)*7/2)), ($y2+2), $parameter, $this->color['axis_values'], $alt);
 362             }
 363         }
 364
 365
 366         /**
 367         * Draw graphic: HORIZONTAL BARS
 368         */
 369         else if ($this->type == 2)
 370         {
 371             $y = 10;
 372
 373             foreach ($this->x as $i => $parameter)
 374             {
 375                 if (isset($this->z[$i]))
 376                 {
 377                     $size = round($this->z[$i] * $higher_value_size / $this->higher_value);
 378                     $x1   = $this->graphic_area_x1 + 1;
 379                     $y1   = $this->graphic_area_y1 + $y + 10;
 380                     $x2   = $x1 + $size;
 381                     $y2   = $y1 + 15;
 382                     imageline($this->img, ($x1), ($y2+1), $x2, ($y2+1), $this->color['bars_2_shadow']);
 383                     imageline($this->img, ($x1), ($y2+2), $x2, ($y2+2), $this->color['bars_2_shadow']);
 384                     imageline($this->img, ($x2+1), ($y1+1), ($x2+1), ($y2+2), $this->color['bars_2_shadow']);
 385                     imagefilledrectangle($this->img, $x1, $y1, $x2, $y2, $this->color['bars_2']);
 386                     $this->_imagestring($this->img, $this->size, ($x2+7), ($y1+7), $this->number_formated($this->z[$i], $this->dec2), $this->color['bars_2_shadow']);
 387                 }
 388
 389                 $size = round(($this->y[$i] / $this->higher_value) * $higher_value_size);
 390                 $x1   = $this->graphic_area_x1 + 1;
 391                 $y1   = $this->graphic_area_y1 + $y;
 392                 $x2   = $x1 + $size;
 393                 $y2   = $y1 + 15;
 394                 $y   += $this->space_between_bars;
 395
 396                 imageline($this->img, ($x1), ($y2+1), $x2, ($y2+1), $this->color['bars_shadow']);
 397                 imageline($this->img, ($x1), ($y2+2), $x2, ($y2+2), $this->color['bars_shadow']);
 398                 imageline($this->img, ($x2+1), ($y1+1), ($x2+1), ($y2+2), $this->color['bars_shadow']);
 399                 imagefilledrectangle($this->img, $x1, $y1, $x2, $y2, $this->color['bars']);
 400                 $this->_imagestring($this->img, $this->size, ($x2+7), ($y1+2), $this->number_formated($this->y[$i], $this->dec2), $this->color['bars_shadow']);
 401
 402                 //$this->_imagestring($this->img, $this->size, ($x1 - ((strlen($parameter)*7)+7)), ($y1+2), $parameter, $this->color['axis_values']);
 403                 $this->_imagestring($this->img, $this->size, 30, ($y1+2), $parameter, $this->color['axis_values']);
 404             }
 405         }
 406
 407
 408         /**
 409         * Draw graphic: DOTS or LINE
 410         */
 411         else if (preg_match("/^(3|4)$/", $this->type))
 412         {
 413
 414             $x[0] = $this->graphic_area_x1+1;
 415
 416             foreach ($this->x as $i => $parameter)
 417             {
 418                 if ($this->graphic_2_exists == true)
 419                 {
 420                     $size  = round($this->z[$i] * $higher_value_size / $this->higher_value);
 421                     $z[$i] = $this->graphic_area_y2 - $size;
 422                 }
 423
 424                 $alt   = (($i % 2 == 0) && (strlen($this->biggest_x) > 5)) ? 15 : 2;
 425                 $size  = round($this->y[$i] * $higher_value_size / $this->higher_value);
 426                 $y[$i] = $this->graphic_area_y2 - $size;
 427
 428                 if ($i != 0)
 429                 {
 430                     imageline($this->img, $x[$i], ($this->graphic_area_y1+10), $x[$i], ($this->graphic_area_y2-1), $this->color['bg_lines']);
 431                 }
 432                 $this->_imagestring($this->img, $this->size, ($x[$i] - (strlen($parameter)*7/2 )), ($this->graphic_area_y2+2), $parameter, $this->color['axis_values'], $alt);
 433
 434                 $x[$i+1] = $x[$i] + 40;
 435             }
 436
 437             foreach ($x as $i => $value_x)
 438             {
 439                 if ($this->graphic_2_exists == true)
 440                 {
 441                     if (isset($z[$i+1]))
 442                     {
 443                         // Draw lines
 444                         if ($this->type == 4)
 445                         {
 446                             imageline($this->img, $x[$i], $z[$i], $x[$i+1], $z[$i+1], $this->color['line_2']);
 447                             imageline($this->img, $x[$i], ($z[$i]+1), $x[$i+1], ($z[$i+1]+1), $this->color['line_2']);
 448                         }
 449                         imagefilledrectangle($this->img, $x[$i]-1, $z[$i]-1, $x[$i]+2, $z[$i]+2, $this->color['line_2']);
 450                     }
 451                     else
 452                     { // Draw last dot
 453                         imagefilledrectangle($this->img, $x[$i-1]-1, $z[$i-1]-1, $x[$i-1]+2, $z[$i-1]+2, $this->color['line_2']);
 454                     }
 455                 }
 456
 457                 if (count($y) > 1)
 458                 {
 459                     if (isset($y[$i+1]))
 460                     {
 461                         // Draw lines
 462                         if ($this->type == 4)
 463                         {
 464                             imageline($this->img, $x[$i], $y[$i], $x[$i+1], $y[$i+1], $this->color['line']);
 465                             imageline($this->img, $x[$i], ($y[$i]+1), $x[$i+1], ($y[$i+1]+1), $this->color['line']);
 466                         }
 467                         imagefilledrectangle($this->img, $x[$i]-1, $y[$i]-1, $x[$i]+2, $y[$i]+2, $this->color['line']);
 468                     }
 469                     else
 470                     { // Draw last dot
 471                         imagefilledrectangle($this->img, $x[$i-1]-1, $y[$i-1]-1, $x[$i-1]+2, $y[$i-1]+2, $this->color['line']);
 472                     }
 473                 }
 474
 475             }
 476         }
 477
 478
 479         /**
 480         * Draw graphic: PIE or DONUT
 481         */
 482         else if (preg_match("/^(5|6)$/", $this->type))
 483         {
 484             $center_x = ($this->graphic_area_x1 + $this->graphic_area_x2) / 2;
 485             $center_y = ($this->graphic_area_y1 + $this->graphic_area_y2) / 2;
 486             $width    = $this->graphic_area_width;
 487             $height   = $this->graphic_area_height;
 488             $start    = 0;
 489             $sizes    = array();
 490
 491             foreach ($this->x as $i => $parameter)
 492             {
 493                 $size    = $this->y[$i] * 360 / $this->sum_total;
 494                 $sizes[] = $size;
 495                 $start  += $size;
 496             }
 497             $start = 270;
 498
 499             // Draw PIE
 500             if ($this->type == 5)
 501             {
 502                 // Draw shadow
 503                 foreach ($sizes as $i => $size)
 504                 {
 505                     $num_color = $i + 1;
 506                     while ($num_color > 7)
 507                     {
 508                         $num_color -= 5;
 509                     }
 510                     $color = 'arc_' . $num_color . '_shadow';
 511
 512                     for ($i = $this->h3d; $i >= 0; $i--)
 513                     {
 514                         //imagearc($this->img, $center_x, ($center_y+$i), $width, $height, $start, ($start+$size), $this->color[$color]);
 515                         imagefilledarc($this->img, $center_x, ($center_y+$i), $width, $height, $start, ($start+$size), $this->color[$color], IMG_ARC_NOFILL);
 516                     }
 517                     $start += $size;
 518                 }
 519
 520                 $start = 270;
 521
 522                 // Draw pieces
 523                 foreach ($sizes as $i => $size)
 524                 {
 525                     $num_color = $i + 1;
 526                     while ($num_color > 7)
 527                     {
 528                         $num_color -= 5;
 529                     }
 530                     $color = 'arc_' . $num_color;
 531
 532                     imagefilledarc($this->img, $center_x, $center_y, ($width+2), ($height+2), $start, ($start+$size), $this->color[$color], IMG_ARC_EDGED);
 533                     $start += $size;
 534                 }
 535             }
 536
 537             // Draw DONUT
 538             else if ($this->type == 6)
 539             {
 540                 foreach ($sizes as $i => $size)
 541                 {
 542                     $num_color = $i + 1;
 543                     while ($num_color > 7)
 544                     {
 545                         $num_color -= 5;
 546                     }
 547                     $color        = 'arc_' . $num_color;
 548                     $color_shadow = 'arc_' . $num_color . '_shadow';
 549                     imagefilledarc($this->img, $center_x, $center_y, $width, $height, $start, ($start+$size), $this->color[$color], IMG_ARC_PIE);
 550                     $start += $size;
 551                 }
 552                 imagefilledarc($this->img, $center_x, $center_y, 100, 100, 0, 360, $this->color['background'], IMG_ARC_PIE);
 553                 imagearc($this->img, $center_x, $center_y, 100, 100, 0, 360, $this->color['bg_legend']);
 554                 imagearc($this->img, $center_x, $center_y, ($width+1), ($height+1), 0, 360, $this->color['bg_legend']);
 555             }
 556         }
 557
 558
 559         if ($this->credits == true)
 560         {
 561             $this->draw_credits();
 562         }
 563                 if ($save != "")
 564                         imagepng($this->img, $save);
 565                 else
 566                 {
 567                 header('Content-type: image/png');
 568                 imagepng($this->img);
 569         }
 570         imagedestroy($this->img);
 571     }
 572
 573     function calculate_width()
 574     {
 575         switch ($this->type)
 576         {
 577             // Vertical bars
 578             case 1:
 579                 $this->legend_box_width   = ($this->legend_exists == true) ? ($this->string_width($this->biggest_graphic_name, $this->tsize) + 25) : 0;
 580                 $this->graphic_area_width = ($this->space_between_bars * $this->total_parameters) + 30;
 581                 $this->graphic_area_x1   += $this->string_width(($this->higher_value_str), $this->size);
 582                 $this->width += $this->graphic_area_x1 + 20;
 583                 $this->width += ($this->legend_exists == true) ? 50 : ((7 * strlen($this->axis_x)) + 10);
 584                 break;
 585
 586             // Horizontal bars
 587             case 2:
 588                 $this->legend_box_width   = ($this->legend_exists == true) ? ($this->string_width($this->biggest_graphic_name, $this->size) + 25) : 0;
 589                 $this->graphic_area_width = ($this->string_width($this->higher_value_str, $this->size) > 50) ? (5 * ($this->string_width($this->higher_value_str, $this->size)) * 0.85) : 200;
 590                 $this->graphic_area_x1 += 7 * strlen($this->biggest_x);
 591                 $this->width += ($this->legend_exists == true) ? 60 : ((7 * strlen($this->axis_y)) + 30);
 592                 $this->width += $this->graphic_area_x1;
 593                 break;
 594
 595             // Dots
 596             case 3:
 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->space_between_dots * $this->total_parameters) - 10;
 599                 $this->graphic_area_x1   += $this->string_width(($this->higher_value_str), $this->size);
 600                 $this->width += $this->graphic_area_x1 + 20;
 601                 $this->width += ($this->legend_exists == true) ? 40 : ((7 * strlen($this->axis_x)) + 10);
 602                 break;
 603
 604             // Lines
 605             case 4:
 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)) + 10);
 611                 break;
 612
 613             // Pie
 614             case 5:
 615                 $this->legend_box_width   = $this->string_width($this->biggest_x, $this->size) + 85;
 616                 $this->graphic_area_width = 200;
 617                 $this->width += 90;
 618                 break;
 619
 620             // Donut
 621             case 6:
 622                 $this->legend_box_width   = $this->string_width($this->biggest_x, $this->size) + 85;
 623                 $this->graphic_area_width = 180;
 624                 $this->width += 90;
 625                 break;
 626         }
 627
 628         $this->width += $this->graphic_area_width;
 629         $this->width += $this->legend_box_width;
 630
 631
 632         $this->graphic_area_x2 = $this->graphic_area_x1 + $this->graphic_area_width;
 633         $this->legend_box_x1   = $this->graphic_area_x2 + 40;
 634         $this->legend_box_x2   = $this->legend_box_x1 + $this->legend_box_width;
 635     }
 636
 637     function calculate_height()
 638     {
 639         switch ($this->type)
 640         {
 641             // Vertical bars
 642             case 1:
 643                 $this->legend_box_height   = ($this->graphic_2_exists == true) ? 40 : 0;
 644                 $this->graphic_area_height = 150;
 645                 $this->height += 65;
 646                 break;
 647
 648             // Horizontal bars
 649             case 2:
 650                 $this->legend_box_height   = ($this->graphic_2_exists == true) ? 40 : 0;
 651                 $this->graphic_area_height = ($this->space_between_bars * $this->total_parameters) + 10;
 652                 $this->height += 65;
 653                 break;
 654
 655             // Dots
 656             case 3:
 657                 $this->legend_box_height   = ($this->graphic_2_exists == true) ? 40 : 0;
 658                 $this->graphic_area_height = 150;
 659                 $this->height += 65;
 660                 break;
 661
 662             // Lines
 663             case 4:
 664                 $this->legend_box_height   = ($this->graphic_2_exists == true) ? 40 : 0;
 665                 $this->graphic_area_height = 150;
 666                 $this->height += 65;
 667                 break;
 668
 669             // Pie
 670             case 5:
 671                 $this->legend_box_height   = (!empty($this->axis_x)) ? 30 : 5;
 672                 $this->legend_box_height  += (14 * $this->total_parameters);
 673                 $this->graphic_area_height = 150;
 674                 $this->height += 50;
 675                 break;
 676
 677             // Donut
 678             case 6:
 679                 $this->legend_box_height   = (!empty($this->axis_x)) ? 30 : 5;
 680                 $this->legend_box_height  += (14 * $this->total_parameters);
 681                 $this->graphic_area_height = 180;
 682                 $this->height += 50;
 683                 break;
 684         }
 685
 686         $this->height += $this->height_title;
 687         $this->height += ($this->legend_box_height > $this->graphic_area_height) ? ($this->legend_box_height - $this->graphic_area_height) : 0;
 688         $this->height += $this->graphic_area_height;
 689
 690         $this->graphic_area_y2 = $this->graphic_area_y1 + $this->graphic_area_height;
 691         $this->legend_box_y1   = $this->graphic_area_y1 + 10;
 692         $this->legend_box_y2   = $this->legend_box_y1 + $this->legend_box_height;
 693     }
 694
 695     function draw_legend()
 696     {
 697         $x1 = $this->legend_box_x1;
 698         $y1 = $this->legend_box_y1;
 699         $x2 = $this->legend_box_x2;
 700         $y2 = $this->legend_box_y2;
 701
 702         imagefilledrectangle($this->img, $x1, $y1, $x2, $y2, $this->color['bg_legend']);
 703
 704         $x = $x1 + 5;
 705         $y = $y1 + 5;
 706
 707
 708         // Draw legend values for VERTICAL BARS, HORIZONTAL BARS, DOTS and LINES
 709         if (preg_match("/^(1|2|3|4)$/", $this->type))
 710         {
 711             $color_1 = (preg_match("/^(1|2)$/", $this->type)) ? $this->color['bars']   : $this->color['line'];
 712             $color_2 = (preg_match("/^(1|2)$/", $this->type)) ? $this->color['bars_2'] : $this->color['line_2'];
 713
 714             imagefilledrectangle($this->img, $x, $y, ($x+10), ($y+10), $color_1);
 715             imagerectangle($this->img, $x, $y, ($x+10), ($y+10), $this->color['title']);
 716             $this->_imagestring($this->img, $this->size, ($x+15), ($y-2), $this->graphic_1, $this->color['axis_values']);
 717             $y += 20;
 718             imagefilledrectangle($this->img, $x, $y, ($x+10), ($y+10), $color_2);
 719             imagerectangle($this->img, $x, $y, ($x+10), ($y+10), $this->color['title']);
 720             $this->_imagestring($this->img, $this->size, ($x+15), ($y-2), $this->graphic_2, $this->color['axis_values']);
 721         }
 722
 723         // Draw legend values for PIE or DONUT
 724         else if (preg_match("/^(5|6)$/", $this->type))
 725         {
 726             if (!empty($this->axis_x))
 727             {
 728                 $this->_imagestring($this->img, $this->size, ((($x1+$x2)/2) - (strlen($this->axis_x)*7/2)), $y, $this->axis_x, $this->color['title']);
 729                 $y += 25;
 730             }
 731
 732             $num = 1;
 733
 734             foreach ($this->x as $i => $parameter)
 735             {
 736                 while ($num > 7)
 737                 {
 738                     $num -= 5;
 739                 }
 740                 $color = 'arc_' . $num;
 741
 742                 $percent = number_format(round(($this->y[$i] * 100 / $this->sum_total), 2), 2, ".", "") . ' %';
 743                 $less    = (strlen($percent) * 7);
 744
 745                 if ($num != 1)
 746                 {
 747                     imageline($this->img, ($x1+15), ($y-2), ($x2-5), ($y-2), $this->color['bg_lines']);
 748                 }
 749                 imagefilledrectangle($this->img, $x, $y, ($x+10), ($y+10), $this->color[$color]);
 750                 imagerectangle($this->img, $x, $y, ($x+10), ($y+10), $this->color['title']);
 751                 $this->_imagestring($this->img, $this->size, ($x+15), ($y-2), $parameter, $this->color['axis_values']);
 752                 $this->_imagestring($this->img, $this->size, ($x2-$less), ($y-2), $percent, $this->color['axis_values']);
 753                 $y += 14;
 754                 $num++;
 755             }
 756         }
 757     }
 758
 759
 760     function string_width($string, $size)
 761     {
 762         $single_width = $size + 4;
 763         return $single_width * strlen($string);
 764     }
 765
 766     function string_height($size)
 767     {
 768         if ($size <= 1)
 769         {
 770             $height = 8;
 771         }
 772         else if ($size <= 3)
 773         {
 774             $height = 12;
 775         }
 776         else if ($size >= 4)
 777         {
 778             $height = 14;
 779         }
 780         return $height;
 781     }
 782
 783     function calculate_higher_value()
 784     {
 785         $digits   = strlen(round($this->biggest_y));
 786         $interval = pow(10, ($digits-1));
 787         $this->higher_value     = round(($this->biggest_y - ($this->biggest_y % $interval) + $interval), 1);
 788         $this->higher_value_str = $this->number_formated($this->higher_value, $this->dec1);
 789     }
 790
 791     function number_formated($number, $dec_size = 1)
 792     {
 793         if ($this->latin_notation == true)
 794             return number_format(round($number, $dec_size), $dec_size, ",", ".");
 795         return number_format(round($number, $dec_size), $dec_size, ".", ",");
 796     }
 797
 798     function number_float($number)
 799     {
 800         if ($this->latin_notation == true)
 801             $number = str_replace(".", "", $number);
 802         return (float)str_replace(",", "", $number);
 803     }
 804
 805
 806     function draw_credits()
 807     {
 808         $this->_imagestring($this->img, $this->size - 2, ($this->width-120), ($this->height-10), "Powered by Carlos Reche", $this->color['title']);
 809     }
 810
 811
 812     function load_color_palette()
 813     {
 814         switch ($this->skin)
 815         {
 816             // Office
 817             case 1:
 818                 //$this->color['title']       = imagecolorallocate($this->img,  50,  50,  50);
 819                 $this->color['title']       = imagecolorallocate($this->img,  40,  70,  130);
 820                 //$this->color['background']  = imagecolorallocate($this->img, 238, 255, 238);
 821                 $this->color['background']  = imagecolorallocate($this->img, 255, 255, 255);
 822                 $this->color['axis_values'] = imagecolorallocate($this->img,  50,  50,  50);
 823                 $this->color['axis_line']   = imagecolorallocate($this->img, 100, 100, 100);
 824                 $this->color['bg_lines']    = imagecolorallocate($this->img, 220, 220, 220);
 825                 $this->color['bg_legend']   = imagecolorallocate($this->img, 255, 255, 255);
 826
 827                 if (preg_match("/^(1|2)$/", $this->type))
 828                 {
 829                     $this->color['bars']          = imagecolorallocate($this->img, 100, 150, 200);
 830                     $this->color['bars_shadow']   = imagecolorallocate($this->img,  50, 100, 150);
 831                     $this->color['bars_2']        = imagecolorallocate($this->img, 200, 250, 150);
 832                     $this->color['bars_2_shadow'] = imagecolorallocate($this->img, 120, 170,  70);
 833                 }
 834                 else if (preg_match("/^(3|4)$/", $this->type))
 835                 {
 836                     $this->color['line']   = imagecolorallocate($this->img, 100, 150, 200);
 837                     $this->color['line_2'] = imagecolorallocate($this->img, 230, 100, 100);
 838                 }
 839                 else if (preg_match("/^(5|6)$/", $this->type))
 840                 {
 841                     $this->color['arc_1']        = imagecolorallocate($this->img, 255, 150,   0);
 842                     $this->color['arc_2']        = imagecolorallocate($this->img, 150,   0, 255);
 843                     $this->color['arc_3']        = imagecolorallocate($this->img,   0, 255, 255);
 844                     $this->color['arc_4']        = imagecolorallocate($this->img, 255,   0,   0);
 845                     $this->color['arc_5']        = imagecolorallocate($this->img,   0, 255,   0);
 846                     $this->color['arc_6']        = imagecolorallocate($this->img,   0,   0, 255);
 847                     $this->color['arc_7']        = imagecolorallocate($this->img, 255, 255,   0);
 848                     $this->color['arc_1_shadow'] = imagecolorallocate($this->img, 127,  75,   0);
 849                     $this->color['arc_2_shadow'] = imagecolorallocate($this->img,  75,   0, 127);
 850                     $this->color['arc_3_shadow'] = imagecolorallocate($this->img,   0, 127, 127);
 851                     $this->color['arc_4_shadow'] = imagecolorallocate($this->img, 127,   0,   0);
 852                     $this->color['arc_5_shadow'] = imagecolorallocate($this->img,   0, 127,   0);
 853                     $this->color['arc_6_shadow'] = imagecolorallocate($this->img,   0,   0, 127);
 854                     $this->color['arc_7_shadow'] = imagecolorallocate($this->img, 127, 127,   0);
 855                 }
 856                 break;
 857
 858             // Matrix
 859             case 2:
 860                 $this->color['title']       = imagecolorallocate($this->img, 255, 255, 255);
 861                 $this->color['background']  = imagecolorallocate($this->img,   0,   0,   0);
 862                 $this->color['axis_values'] = imagecolorallocate($this->img,   0, 230,   0);
 863                 $this->color['axis_line']   = imagecolorallocate($this->img,   0, 200,   0);
 864                 $this->color['bg_lines']    = imagecolorallocate($this->img, 100, 100, 100);
 865                 $this->color['bg_legend']   = imagecolorallocate($this->img,  70,  70,  70);
 866
 867                 if (preg_match("/^(1|2)$/", $this->type))
 868                 {
 869                     $this->color['bars']          = imagecolorallocate($this->img,  50, 200,  50);
 870                     $this->color['bars_shadow']   = imagecolorallocate($this->img,   0, 150,   0);
 871                     $this->color['bars_2']        = imagecolorallocate($this->img, 255, 255, 255);
 872                     $this->color['bars_2_shadow'] = imagecolorallocate($this->img, 220, 220, 220);
 873                 }
 874                 else if (preg_match("/^(3|4)$/", $this->type))
 875                 {
 876                     $this->color['line']   = imagecolorallocate($this->img, 220, 220, 220);
 877                     $this->color['line_2'] = imagecolorallocate($this->img,   0, 180,   0);
 878                 }
 879                 else if (preg_match("/^(5|6)$/", $this->type))
 880                 {
 881                     $this->color['arc_1']        = imagecolorallocate($this->img, 255, 255, 255);
 882                     $this->color['arc_2']        = imagecolorallocate($this->img, 200, 220, 200);
 883                     $this->color['arc_3']        = imagecolorallocate($this->img, 160, 200, 160);
 884                     $this->color['arc_4']        = imagecolorallocate($this->img, 135, 180, 135);
 885                     $this->color['arc_5']        = imagecolorallocate($this->img, 115, 160, 115);
 886                     $this->color['arc_6']        = imagecolorallocate($this->img, 100, 140, 100);
 887                     $this->color['arc_7']        = imagecolorallocate($this->img,  90, 120,  90);
 888                     $this->color['arc_1_shadow'] = imagecolorallocate($this->img, 127, 127, 127);
 889                     $this->color['arc_2_shadow'] = imagecolorallocate($this->img, 100, 110, 100);
 890                     $this->color['arc_3_shadow'] = imagecolorallocate($this->img,  80, 100,  80);
 891                     $this->color['arc_4_shadow'] = imagecolorallocate($this->img,  67,  90,  67);
 892                     $this->color['arc_5_shadow'] = imagecolorallocate($this->img,  57,  80,  57);
 893                     $this->color['arc_6_shadow'] = imagecolorallocate($this->img,  50,  70,  50);
 894                     $this->color['arc_7_shadow'] = imagecolorallocate($this->img,  45,  60,  45);
 895                 }
 896                 break;
 897
 898
 899             // Spring
 900             case 3:
 901                 $this->color['title']       = imagecolorallocate($this->img, 250,  50,  50);
 902                 //$this->color['background']  = imagecolorallocate($this->img, 250, 250, 220);
 903                 $this->color['background']  = imagecolorallocate($this->img, 255, 255, 255);
 904                 $this->color['axis_values'] = imagecolorallocate($this->img,  50, 150,  50);
 905                 $this->color['axis_line']   = imagecolorallocate($this->img,  50, 100,  50);
 906                 $this->color['bg_lines']    = imagecolorallocate($this->img, 200, 224, 180);
 907                 //$this->color['bg_legend']   = imagecolorallocate($this->img, 230, 230, 200);
 908                 $this->color['bg_legend']   = imagecolorallocate($this->img, 255, 255, 255);
 909
 910                 if (preg_match("/^(1|2)$/", $this->type))
 911                 {
 912                     $this->color['bars']          = imagecolorallocate($this->img, 255, 170,  80);
 913                     $this->color['bars_shadow']   = imagecolorallocate($this->img, 200, 120,  30);
 914                     $this->color['bars_2']        = imagecolorallocate($this->img, 250, 230,  80);
 915                     $this->color['bars_2_shadow'] = imagecolorallocate($this->img, 180, 150,   0);
 916                 }
 917                 else if (preg_match("/^(3|4)$/", $this->type))
 918                 {
 919                     $this->color['line']   = imagecolorallocate($this->img, 230, 100,   0);
 920                     $this->color['line_2'] = imagecolorallocate($this->img, 220, 200,  50);
 921                 }
 922                 else if (preg_match("/^(5|6)$/", $this->type))
 923                 {
 924                     $this->color['arc_1']        = imagecolorallocate($this->img, 100, 150, 200);
 925                     $this->color['arc_2']        = imagecolorallocate($this->img, 200, 250, 150);
 926                     $this->color['arc_3']        = imagecolorallocate($this->img, 250, 200, 150);
 927                     $this->color['arc_4']        = imagecolorallocate($this->img, 250, 150, 150);
 928                     $this->color['arc_5']        = imagecolorallocate($this->img, 250, 250, 150);
 929                     $this->color['arc_6']        = imagecolorallocate($this->img, 230, 180, 250);
 930                     $this->color['arc_7']        = imagecolorallocate($this->img, 200, 200, 150);
 931                     $this->color['arc_1_shadow'] = imagecolorallocate($this->img,  50,  75, 100);
 932                     $this->color['arc_2_shadow'] = imagecolorallocate($this->img, 100, 125,  75);
 933                     $this->color['arc_3_shadow'] = imagecolorallocate($this->img, 125, 100,  75);
 934                     $this->color['arc_4_shadow'] = imagecolorallocate($this->img, 125,  75,  75);
 935                     $this->color['arc_5_shadow'] = imagecolorallocate($this->img, 125, 125,  75);
 936                     $this->color['arc_6_shadow'] = imagecolorallocate($this->img, 115,  90, 125);
 937                     $this->color['arc_7_shadow'] = imagecolorallocate($this->img, 100, 100,  75);
 938                 }
 939                 break;
 940
 941         }
 942     }
 943
 944     function _imagestring($img, $size, $x, $y, $string, $col, $alt=0)
 945     {
 946         if ($alt && strlen($string) > 12)
 947                 $string = substr($string, 0, 12);
 948
 949                 $encoding = $_SESSION['language']->encoding;
 950                 if ($encoding != 'UTF-8') {
 951                         if (function_exists('iconv'))
 952                                 $string = iconv($encoding, 'UTF-8', $string);
 953                         else
 954                                 $string = mb_convert_encoding($string, 'UTF-8', $encoding);
 955                 }
 956
 957         if ($this->built_in)
 958         {
 959                 imagestring($img, $size, $x, $y + $alt, $string, $col);
 960         }
 961         else
 962         {
 963                 if ($size == 1)
 964                         $size = 7;
 965                 else if ($size == 2)
 966                         $size = 8;
 967                 else if ($size == 3)
 968                         $size = 9;
 969                 else if ($size == 4)
 970                         $size = 11;
 971                 else
 972                         $size = 12;
 973                 $y += $size + 3;
 974                 //if ($alt)
 975                 //      $angle = -15;
 976                 //else
 977                                 $angle = 0;
 978
 979                 imagettftext($img, $size, $angle, $x, $y + $alt, $col, $this->fontfile, $string);
 980         }
 981     }
 982 }
 983 ?>