php打造智能化的柱状图程序，用于报表等

php打造智能化的柱状图程序，用于报表等

    <?php 
    /*** 
     * @project Bar Graph Program 
     * @license GPL 
     * @package 
     * @file GrapBar.php 
     * @date 2007-4-3 
     * @version 1.0 
     * @last modified 

     * 定义 柱状图（柱形图） 类 
     * 
     * 注意，使用前请确保字体路径存在并允许访问，如果出错，还要检查在php.ini配置中的open_basedir项，如果没此路径请添加，或在程序中设置包含 
     * 
     * 智能化的柱状图程序，用于报表等 
     * 
     ***/ 

    define("DEFAULT_FONT_PATH", "c:/windows/fonts/simhei.ttf"); 
    class SingleBar 
    { 
     private $_x; 
     private $_y; 
     private $_h; 
     public $_l = 50; 
     private $_w = null; 
     private $_srcPoints = array(); 
     private $_points = array(); 

     public function __construct($x, $y, $h, $l = 50, $w = null) 
     { 
     $this->_x = $x; 
     $this->_y = $y; 
     $this->_h = $h; 
     $this->_l = $l; 
     $this->_w = $w; 
     $this->_srcPoints = $this->getSrcPoints(); 
     $this->_points = $this->getPoints(); 
     } 

     public function getSrcPoints() 
     { 
     return array( 
      array($this->_x         , $this->_y), 
      array($this->_x+$this->_l    , $this->_y), 
      array($this->_x+(1.35*$this->_l), $this->_y-(0.35*$this->_l)), 
      array($this->_x+(0.35*$this->_l), $this->_y-(0.35*$this->_l)), 
      array($this->_x         , $this->_y+$this->_h), 
      array($this->_x+$this->_l    , $this->_y+$this->_h), 
      array($this->_x+(1.35*$this->_l), $this->_y+$this->_h-(0.35*$this->_l)) 
     ); 
     } 

     public function getPoints() 
     { 
     $points = array(); 
     foreach($this->_srcPoints as $key => $val) 
     { 
      $points[] = $val[0]; 
      $points[] = $val[1]; 
     } 
     return $points; 
     } 

     public function getTopPoints() 
     { 
     return array_slice($this->_points, 0, 8); //顶坐标 
     } 

     public function getBelowPoints() 
     { 
     return array_merge(array_slice($this->_points, 0, 2), array_slice($this->_points, 8, 4), array_slice($this->_points, 2, 2)); //下坐标 
     } 

     public function getRightSidePoints() 
     { 
     return array_merge(array_slice($this->_points, 2, 2), array_slice($this->_points, 10, 4), array_slice($this->_points, 4, 2)); //右侧坐标 
     } 

     public function draw($image, $topColor, $belowColor, $sideColor, $borderColor = null, $type = 'LEFT') 
     { 
     if (is_null($borderColor)) 
     { 
      $borderColor = 0xcccccc; 
     } 

     $top_rgb = $this->getRGB($topColor); 
     $below_rgb = $this->getRGB($belowColor); 
     $side_rgb = $this->getRGB($sideColor); 
     $top_color = imagecolorallocate($image, $top_rgb['R'], $top_rgb['G'], $top_rgb['B']); 
     $below_color = imagecolorallocate($image, $below_rgb['R'], $below_rgb['G'], $below_rgb['B']); 
     $side_color = imagecolorallocate($image, $side_rgb['R'], $side_rgb['G'], $side_rgb['B']); 

     imagefilledpolygon($image, $this->getTopPoints(), 4, $top_color); //画顶面 
     imagepolygon($image, $this->getTopPoints(), 4, $borderColor); //画顶面边线 

     imagefilledpolygon($image, $this->getBelowPoints(), 4, $below_color); //画下面 
     imagepolygon($image, $this->getBelowPoints(), 4, $borderColor); //画下面边线 

     if ($type == 'LEFT') 
     { 
      imagefilledpolygon($image, $this->getRightSidePoints(), 4, $side_color); //画右侧面 
      imagepolygon($image, $this->getRightSidePoints(), 4, $borderColor); //画侧面边线 
     }  
     } 

     public function getRGB($color) 
     { 
     $ar = array(); 
     $color = hexdec($color); 
     $ar['R'] = ($color>>16) & 0xff; 
     $ar['G'] = ($color>>8) & 0xff; 
     $ar['B'] = ($color) & 0xff; 
     return $ar; 
     } 
    } 

    class Bar 
    { 
     private $_W; 
     private $_H; 
     private $_bgColor = "ffffff"; 
     private $_barHeights = array(); 
     private $_barTexts = array(); 
     private $_barColors = array(); 
     public $_title; 
     public $_paddingTop = 30; 
     public $_paddingBottom = 100; 
     public $_paddingLeft = 45; 
     public $_paddingRight = 2; 
     public $_barL = 50; 
     public $image; 

     public function __construct($imgW, $imgH, $barHeights, $barTexts = null, $barColors = null) 
     { 
     $this->_W = $imgW; 
     $this->_H = $imgH; 
     $this->_barHeights = $barHeights; 
     $this->_barTexts  = $barTexts; 
     $this->_barColors = $barColors; 
     $this->_paddingBottom = $this->resetPaddingBottom(); 
     $this->_H = $this->resetHeight(); 
     $this->image = imagecreatetruecolor($this->_W, $this->_H); 
     } 

     public function stroke() 
     { 
     $this->drawBg(); 
     $this->drawBars(); 
     $this->drawTitle(); 
     $this->drawLables(); 
     ob_start(); 
     //header("Content-type: image/png"); 
     //imagepng($this->image); 
     header("Content-type: " . image_type_to_mime_type(IMAGETYPE_JPEG)); 
        imagejpeg($this->image); 
     imagedestroy($this->image); 
     } 

     public function drawBg() 
     { 
     $img_w = $this->_W; 
     $img_h = $this->_H; 
     $paddingTop  = $this->_paddingTop; 
     $paddingBottom = $this->_paddingBottom; 
     $paddingLeft  = $this->_paddingLeft; 
     $paddingRight = $this->_paddingRight; 
     $rgb = $this->getRGB($this->_bgColor); 
     $bg = imagecolorallocate($this->image,$rgb['R'], $rgb['G'], $rgb['B']); 
     imagefilledrectangle($this->image, 0, 0, $img_w, $img_h, $bg); 
     $side_bg = imagecolorallocatealpha($this->image, 220, 220, 220, 75); 
     $side_bg2 = imagecolorallocate($this->image, 220, 220, 220); 
     $border_color = imagecolorallocate($this->image, 190, 190, 190); 
     $line_color = imagecolorallocate($this->image, 236, 236, 236); 
     $dial_color = imagecolorallocate($this->image, 131, 131, 131); 

     $x1 = $paddingLeft; 
     $y1 = $paddingTop; 
     $x2 = $img_w - $paddingRight; 
     $y2 = $img_h - $paddingBottom; 
     imagerectangle($this->image, $x1, $y1, $x2, $y2, $border_color); 
     imagefilledpolygon($this->image, array($x1-5,$y1+10, $x1-5,$y2+10, $x1,$y2, $x1,$y1), 4, $side_bg); 
        imagepolygon($this->image, array($x1-5,$y1+10, $x1-5,$y2+10, $x1,$y2, $x1,$y1), 4, $border_color); 
     imagefilledpolygon($this->image, array($x1-5,$y2+10, $x2-5,$y2+10, $x2,$y2, $x1,$y2), 4, $side_bg); 
        imagepolygon($this->image, array($x1-5,$y2+10, $x2-5,$y2+10, $x2,$y2, $x1,$y2), 4, $border_color); 
     imageline($this->image, $x1, $y2, $x2, $y2, $side_bg2); 

     $total_h = $img_h - $paddingTop - $paddingBottom; 
     $every_h = $total_h/11; 
     for($i=1; $i<=10; $i++) 
     { 
      imageline($this->image, $x1, $y1+($every_h*$i), $x2, $y1+($every_h*$i), $line_color); //画网线 
     } 

     $max_h = max($this->_barHeights); 
     for($i=1; $i<=10; $i++) 
     { 
      $value = $max_h - (($max_h/10)*($i-1)); 
      $value = strval($value); 
      $str_w = strlen($value)*5; 
      imageline($this->image, $x1-5-3, $y1+10+($every_h*$i), $x1-3+1, $y1+10+($every_h*$i), $dial_color); //画刻度线 
      imagestring($this->image, 3, $x1-5-3-$str_w-1, $y1+10+($every_h*$i)-5, $value, 0x000000); 
     } 
     } 


     public function drawBars() 
     { 
     $counts = count($this->_barHeights); 
     if (empty($this->_barColors)) 
     { 
      $color = $this->setColor(); 
      $this->_barColors = array_slice($color, 0, $counts); 
      //shuffle($this->_barColors); 
     } 
     $every_w = ($this->_W - $this->_paddingLeft - $this->_paddingRight)/$counts; //每一段宽 
     $barL = $every_w; 
     $barL = ($barL > $this->_barL*1.35+6) ? $this->_barL : $barL/1.35 - 6; 
     $max_h = max($this->_barHeights); 
     $ruler_h = $this->_H - $this->_paddingTop - $this->_paddingBottom; //标尺总高度 
     $stander_h = $ruler_h - ($ruler_h/11); //标尺10等分的高度 
     $i = 0; 
     foreach ($this->_barHeights as $val) 
     { 
      $h = ($stander_h/$max_h)*$val; 
      $x = $this->_paddingLeft + ($every_w*$i) + (($every_w - ($barL*1.35))/2);; 
      $y = $this->_H - $this->_paddingBottom + 10 - $h; 
      //$t_color = $this->_barColors[$i]; 
      $b_color = $this->_barColors[$i]; 
      //$s_color = $this->_barColors[$i]; 


      $rgb = $this->getRGB($this->_barColors[$i]); 
      $R = $rgb['R'] * 0.7; 
      $G = $rgb['G'] * 0.7; 
      $B = $rgb['B'] * 0.7; 

      $c1 = $R > 0 ? dechex($R) : '00'; 
      $c2 = $G > 0 ? dechex($G) : '00'; 
      $c3 = $B > 0 ? dechex($B) : '00'; 

      $t_color = $b_color; 
      $s_color = $c1. $c2 . $c3; 

      $SingleBar = new SingleBar($x, $y, $h, $barL); 
      $SingleBar->draw($this->image, $t_color, $b_color, $s_color); 
      $i++; 
     } 
     } 

     public function drawTitle() 
     { 
     if (empty($this->_title)) 
     { 
      return; 
     } 
     $font = 5; 
     $font_w = imagefontwidth($font); 
     $len = strlen($this->_title); 
     $x = ($this->_W + $this->_paddingLeft - $this->_paddingRight)/2; 
     $x -= ($len*$font_w)/2; 
     $y = ($this->_paddingTop - $font_w)/2 + 12; 
     //imagestring($this->image, $font, $x, $y, $title, 0x000000); 
     imagettftext($this->image, 12, 0, $x, $y, 0x000000, DEFAULT_FONT_PATH, $this->_title); 
     } 

     public function drawLables() 
     { 
     $x1 = $this->_paddingLeft - 5; 
     $y1 = $this->_H - $this->_paddingBottom + 20; 
     $x2 = $this->_W - $this->_paddingRight; 
     $y2 = $this->_H - 10; 
     //imagefilledrectangle($this->image, $x1, $y1, $x2, $y2, 0xffffff); 
     imagerectangle($this->image, $x1, $y1, $x2, $y2, 0x000000); 
     $space = 5; 
     $x = $x1 + 3; 
     $y = $y1 + 3; 
     foreach ($this->_barTexts as $key => $val) 
     { 
      $color = $this->_barColors[$key]; 
      $rgb = $this->getRGB($color); 
      $bg = imagecolorallocate($this->image,$rgb['R'], $rgb['G'], $rgb['B']); 
      imagefilledrectangle($this->image, $x, $y, $x+12, $y+12, $bg); //绘12*12的矩形 
         imagerectangle($this->image, $x, $y, $x+12, $y+12, 0x000000); //绘12*12的矩形框 
      imagettftext($this->image, 12, 0, $x+12+3, $y+12, 0x000000, DEFAULT_FONT_PATH, $val); 
      $x += 12 + $space + (strlen($val)*8) + $space; 
      if ($x + (strlen($val)*8) >= $this->_W - $this->_paddingLeft - $this->_paddingRight) 
      { 
      $x = $x1 + 3; 
      $y = $y + 12 + 3; 
      } 
     } 
     } 

     public function resetPaddingBottom() 
     { 
     $ruler_w = $this->_W - $this->_paddingLeft - $this->_paddingRight; 
     $label_w = $this->getLableTotalWidth(); 
     $lines = ceil($label_w / $ruler_w); 
     $h = 12 * $lines + (3 * ($lines + 1)) + 30; 
     return $h; 
     } 

     public function resetHeight() 
     { 
     $padding_bottom = $this->resetPaddingBottom(); 
     if ($this->_H - $padding_bottom < 222) 
     { 
      return 222 + $padding_bottom; 
     } 
     return $this->_H; 
     } 


     public function getLableTotalWidth() 
     { 
     $counts = count($this->_barTexts); 
     $space = 5; 
     $total_len = 0; 
     foreach ($this->_barTexts as $val) 
     { 
      $total_len += strlen($val); 
     } 

     $tx_w = ($total_len * 9) + ((12 + 3 + $space) * $counts); 
     return $tx_w; 
     } 

     public function setBg($color) 
     { 
     $this->_bgColor = $color; 
     } 

     public function setTitle($title) 
     { 
     $this->_title = $title; 
     } 

     public function setColor() 
     { 
     $ar = array('ff', '00', '33', '66', '99', 'cc'); 
     $color = array(); 
     for ($i=0; $i<6; $i++) 
     { 
      for ($j=0; $j<6; $j++) 
      { 
      for($k=0; $k<6; $k++) 
      { 
       $color[] = $ar[$i] . $ar[$j] . $ar[$k]; 
      } 
      } 
     } 

     $color2 = array(); 
     for ($i=1; $i<216; $i += 4) 
     { 
      $color2[] = $color[$i]; 
     } 

     return $color2; 
     } 

     public function getRGB($color) 
     { 
     $ar = array(); 
     $color = hexdec($color); 
     $ar['R'] = ($color>>16) & 0xff; 
     $ar['G'] = ($color>>8) & 0xff; 
     $ar['B'] = ($color) & 0xff; 
     return $ar; 
     } 
    } 

    /***/ 
    $bar = new Bar(500, 300, array(600, 300, 30, 500, 400, 250, 350, 360), array('AAAAA', 'BBBBB', 'CCCCC', 'DDDDD', 'EEEEEE', 'FFFFFF', 'GGGGGGG', 'HHHHHHHHH')); 
    $bar->setTitle('打造完美柱状图!'); 
    $bar->stroke(); 
    /***/ 
    ?>

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