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