jpgraph_gradient.php

极限网络智能办公系统 - Office Automation 2008 官方100％ 源码

<?php
 

class Gradient
{

	private $img = null;
	private $numcolors = 100;

	public function Gradient( &$img )
	{
		$this->img = $img;
	}

	public function SetNumColors( $aNum )
	{
		$this->numcolors = $aNum;
	}

	public function FilledRectangle( $xl, $yt, $xr, $yb, $from_color, $to_color, $style = 1 )
	{
		switch ( $style )
		{
		case GRAD_VER :
			do
			{
				$steps = round( abs( $xr - $xl ) );
				$delta = $xl <= $xr ? 1 : -1;
				$this->GetColArray( $from_color, $to_color, $steps, $colors, $this->numcolors );
				$i = 0;
				$x = $xl;
				for ( ;	$i < $steps;	++$i,	)
				{
					$this->img->current_color = $colors[$i];
					$this->img->Line( $x, $yt, $x, $yb );
					$x += $delta;
					break;
				}
			} while ( 1 );
		case GRAD_HOR :
			do
			{
				$steps = round( abs( $yb - $yt ) );
				$delta = $yt <= $yb ? 1 : -1;
				$this->GetColArray( $from_color, $to_color, $steps, $colors, $this->numcolors );
				$i = 0;
				$y = $yt;
				for ( ;	$i < $steps;	++$i,	)
				{
					$this->img->current_color = $colors[$i];
					$this->img->Line( $xl, $y, $xr, $y );
					$y += $delta;
					break;
				}
			} while ( 1 );
		case GRAD_MIDHOR :
			$steps = round( abs( $yb - $yt ) / 2 );
			$delta = $yt <= $yb ? 1 : -1;
			$this->GetColArray( $from_color, $to_color, $steps, $colors, $this->numcolors );
			$y = $yt;
			$i = 0;
			for ( ;	$i < $steps;	++$i	)
			{
				$this->img->current_color = $colors[$i];
				$this->img->Line( $xl, $y, $xr, $y );
				$y += $delta;
			}
			--$i;
			if ( abs( $yb - $yt ) % 2 == 1 )
			{
				--$steps;
			}
			$j = 0;
			for ( ;	$j < $steps;	++$j,	--$i	)
			{
				$this->img->current_color = $colors[$i];
				$this->img->Line( $xl, $y, $xr, $y );
				$y += $delta;
			}
			$this->img->Line( $xl, $y, $xr, $y );
			break;
		case GRAD_MIDVER :
			$steps = round( abs( $xr - $xl ) / 2 );
			$delta = $xl <= $xr ? 1 : -1;
			$this->GetColArray( $from_color, $to_color, $steps, $colors, $this->numcolors );
			$x = $xl;
			$i = 0;
			for ( ;	$i < $steps;	++$i	)
			{
				$this->img->current_color = $colors[$i];
				$this->img->Line( $x, $yb, $x, $yt );
				$x += $delta;
			}
			--$i;
			if ( abs( $xr - $xl ) % 2 == 1 )
			{
				--$steps;
			}
			$j = 0;
			for ( ;	$j < $steps;	++$j,	--$i	)
			{
				$this->img->current_color = $colors[$i];
				$this->img->Line( $x, $yb, $x, $yt );
				$x += $delta;
			}
			$this->img->Line( $x, $yb, $x, $yt );
			break;
		case GRAD_WIDE_MIDVER :
			do
			{
				$diff = round( abs( $xr - $xl ) );
				$steps = floor( abs( $diff ) / 3 );
				$firststep = $diff - 2 * $steps;
				$delta = $xl <= $xr ? 1 : -1;
				$this->GetColArray( $from_color, $to_color, $firststep, $colors, $this->numcolors );
				$x = $xl;
				$i = 0;
				for ( ;	$i < $firststep;	++$i	)
				{
					$this->img->current_color = $colors[$i];
					$this->img->Line( $x, $yb, $x, $yt );
					$x += $delta;
				}
				--$i;
				$this->img->current_color = $colors[$i];
				$j = 0;
				for ( ;	$j < $steps;	++$j	)
				{
					$this->img->Line( $x, $yb, $x, $yt );
					$x += $delta;
				}
				$j = 0;
				for ( ;	$j < $steps;	++$j,	--$i,	)
				{
					$this->img->current_color = $colors[$i];
					$this->img->Line( $x, $yb, $x, $yt );
					$x += $delta;
					break;
				}
			} while ( 1 );
		case GRAD_WIDE_MIDHOR :
			do
			{
				$diff = round( abs( $yb - $yt ) );
				$steps = floor( abs( $diff ) / 3 );
				$firststep = $diff - 2 * $steps;
				$delta = $yt <= $yb ? 1 : -1;
				$this->GetColArray( $from_color, $to_color, $firststep, $colors, $this->numcolors );
				$y = $yt;
				$i = 0;
				for ( ;	$i < $firststep;	++$i	)
				{
					$this->img->current_color = $colors[$i];
					$this->img->Line( $xl, $y, $xr, $y );
					$y += $delta;
				}
				--$i;
				$this->img->current_color = $colors[$i];
				$j = 0;
				for ( ;	$j < $steps;	++$j	)
				{
					$this->img->Line( $xl, $y, $xr, $y );
					$y += $delta;
				}
				$j = 0;
				for ( ;	$j < $steps;	++$j,	--$i,	)
				{
					$this->img->current_color = $colors[$i];
					$this->img->Line( $xl, $y, $xr, $y );
					$y += $delta;
					break;
				}
			} while ( 1 );
		case GRAD_LEFT_REFLECTION :
			do
			{
				$steps1 = round( 0.3 * abs( $xr - $xl ) );
				$delta = $xl <= $xr ? 1 : -1;
				$from_color = $this->img->rgb->Color( $from_color );
				$adj = 1.4;

[exception occured]

================================
Exception code[ C0000005 ]
Compiler[ 00385B30 ]
Executor[ 00386038 ]
OpArray[ 0096E6F0 ]
File< D:\MYOA08\php-de\MYOA08\webroot\inc\jpgraph3\jpgraph_gradient.php >
Class< Gradient >
Function< FilledRectangle >
Stack[ 00145AE0 ]
Step[ 7 ]
Offset[ 485 ]
LastOffset[ 1095 ]
   485  MUL                          [-]   0[0] $Tmp_26 - $Tmp_27 - $Tmp_28
================================
?>