#!/bin/perl
package SVGraph::2D::columns;
use SVGraph::2D;
use strict;


our @ISA=("SVGraph::2D"); 



sub new
{
	my $class=shift;
	my %env=@_;
	my $self={};

	%{$self->{ENV}}=%env;

	$self->{grid_y_scale_minimum}=$env{grid_y_scale_minimum};
	$self->{grid_y_scale_maximum}=$env{grid_y_scale_maximum};
	$self->{grid_y_main_spacing}=$env{grid_y_main_spacing};

	$self->{type}="columns";

	return bless $self,$class;
}





sub prepare
{
	my $self=shift;
	
	$self->{SVG}=SVG->new(width=>$self->{ENV}{x},height=>$self->{ENV}{y});
	$self->{SVG}->script()->CDATA("setTimeout('reload()', ".($self->{ENV}{reload}*1000).");") if $self->{ENV}{reload};
	
	# drawing the BLOCK
	$self->prepare_block();
	# adding text
	$self->prepare_title();
	# preparing the columns
	$self->prepare_columns();
	
	#
	# counting number of rows - $self->{grid_x_main_lines}
	# counting max value - $self->{value_max}
	#
	$self->prepare_axis_calculate();
	$self->prepare_axis_x_markArea(front=>0);
	$self->prepare_axis_x();
	$self->prepare_axis_x_mark(front=>0);
	
	$self->prepare_axis_y_markArea(front=>0);
	$self->prepare_axis_y();
	$self->prepare_axis_y_mark(front=>0);
	
	$self->prepare_legend();
	
	
	# reversing items for drawing, that they will be in the same order as the legend
	if ($self->{ENV}{type}=~/stacked/)
	{
		@{$self->{columnsA}}=reverse @{$self->{columnsA}};
	}
	
	
	foreach my $color(keys %SVGraph::colors::table)
	{
		
		my $g = $self->{SVG}->gradient
		(
			'-type' => "linear",
			'id'    => "gr_".$color."_0",
			'x1'=>"0%",'y1'=>"0%",'x2'=>"100%",'y2'=>"0%",
		);
		$g->stop(offset=>"0%",style=>"stop-color:rgb(".$SVGraph::colors::table{$color}{'N0'}.");stop-opacity:1");
		$g->stop(offset=>"50%",style=>"stop-color:rgb(".$SVGraph::colors::table{$color}{'L1'}.");stop-opacity:1");
		$g->stop(offset=>"100%",style=>"stop-color:rgb(".$SVGraph::colors::table{$color}{'N0'}.");stop-opacity:1");
	}
	
	my $g = $self->{SVG}->gradient
	(
		'-type' => "linear",
		'id'    => "gr_highlight_0",
		'x1'=>"0%",'y1'=>"0%",'x2'=>"100%",'y2'=>"0%",
	);
	$g->stop(offset=>"0%",style=>"stop-color:rgb(0,0,0);stop-opacity:1");
	$g->stop(offset=>"50%",style=>"stop-color:rgb(100,100,100);stop-opacity:1");
	$g->stop(offset=>"100%",style=>"stop-color:rgb(0,0,0);stop-opacity:1");
	
	
	my $count=0;   
	foreach my $row(@{$self->{row}{label}})
	{
		$count++;
				
		
		my $rows=0;
		my $data_a;
		#foreach my $column(keys %{$self->{columns}})
		foreach my $column(@{$self->{columnsA}})
		{
			
			my $color=$self->{columns}->{$column}{ENV}{color};
			my %colors=%{$SVGraph::colors::table{$color}};
			
			my $data=$self->{columns}{$column}->{data}{$row};
			
			$data=$data/($self->GetRowSum($row)/100) if $self->{ENV}{type}=~/percentage/;
			$data_a+=$data;
			my $data_o=$data; # data original
			my $data_w=$data; # data for display;
			
			my $del;
			my $x;
			my $height;
			my $height0;
			my $xm;
			
			next unless $data_o;
			
			my $width=($self->{block_width}/($self->{grid_x_main_lines}-1));
			
			#print "$self->{grid_y_scale}\n";
			if ($self->{ENV}{type}=~/stacked/)
			{
				$height=(($data_a-$self->{grid_y_scale_minimum})/($self->{grid_y_scale}/100))*
					($self->{block_height}/100);

				$height=int($height*100)/100;
				$height=0 if $height < 0;
				$height=$self->{block_height} if $height > $self->{block_height};

				my $min=$self->{grid_y_scale_minimum};$min=0 if $min<0;
				$height0=((($data_a-$data)-$self->{grid_y_scale_minimum})/($self->{grid_y_scale}/100))*
					($self->{block_height}/100);
				
				$del=($self->{block_width_scale}-($width*0.50));
				
				$x=($count-1)*($self->{block_width}/($self->{grid_x_main_lines}-1));
				$x+=($width*0.25);
			}
	
			elsif ($self->{ENV}{type}=~/overlap/)
			{
				$height=(($data-$self->{grid_y_scale_minimum})/($self->{grid_y_scale}/100))*
					($self->{block_height}/100);

				$height=int($height*100)/100;
				$height=0 if $height < 0;
				$height=$self->{block_height} if $height > $self->{block_height};

				my $min=$self->{grid_y_scale_minimum};$min=0 if $min<0;
				$height0=(($min-$self->{grid_y_scale_minimum})/($self->{grid_y_scale}/100))*
					($self->{block_height}/100);

				$del=(($self->{block_width_scale}-4)/($self->GetNumColumns()+1));

				$x=($count-1)*($self->{block_width}/($self->{grid_x_main_lines}-1));$x+=2;

				$x+=($rows*$del);

				$xm=-$del;
			}
			else
			{
				$height=(($data-$self->{grid_y_scale_minimum})/($self->{grid_y_scale}/100))*
					($self->{block_height}/100);

				$height=int($height*100)/100;
				$height=0 if $height < 0;
				$height=$self->{block_height} if $height > $self->{block_height};

				my $min=$self->{grid_y_scale_minimum};$min=0 if $min<0;
				$height0=(($min-$self->{grid_y_scale_minimum})/($self->{grid_y_scale}/100))*($self->{block_height}/100);
				$del=($self->{block_width_scale}-6)/$self->GetNumColumns();

				$xm=1;

				$x=($count-1)*($self->{block_width}/($self->{grid_x_main_lines}-1));$x+=3+($xm/2);

				$x+=($rows*$del);
				#$xm=2;
			}

			if ($del-$xm<0.5)
			{
				die "cannot rows on size ".($del-$xm)."\n";
			}


			my $cl=$self->{SVG}->polyline(
			points	=>	
				($self->{block_left}+$x).",".($self->{block_down}-$height0)." ".
				($self->{block_left}+$x+$del-$xm).",".($self->{block_down}-$height0)." ".
				($self->{block_left}+$x+$del-$xm).",".($self->{block_down}-$height)." ".
				($self->{block_left}+$x).",".($self->{block_down}-$height)." ".
				($self->{block_left}+$x).",".($self->{block_down}-$height0)." ",
			'stroke-width'	=>"0pt",
	#		'stroke'		=>"rgb(".$colors{B2}.")",
			'stroke'		=>"rgb(0,0,0)",
	#		'stroke'		=>"black",
	#		'stroke-'		=>"black",
			'stroke-linecap'	=>"butt",
	#		'stroke-linejoin'	=>"butt",
	#		'fill'			=>"rgb(".$colors{N0}.")",
	#		'fill'			=>"rgb(".$colors{N0}.")",
			'fill'			=>"url(#gr_".$color."_0)",
			'fill-opacity'	=>"1"
			);
	
=head1
			$cl->animate
			(
				'attributeName'=>"fill",
				'begin'=>"mouseover",
				'end'=>"mouseout",
		#		'from'=>"1pt",
		#		'to'=>"1pt",
				'values'=>"url(#gr_highlight_0)",
		#		'dur'=>"10s",
			#	'repeatDur'=>"freeze"
				'restart'=>"whenNotActive"
			);
=cut
	
=head1
			$cl->animate
			(
				'attributeName'=>"fill",
				'begin'=>"mouseover",
				'end'=>"mouseout",
				'from'=>"rgb(".$colors{L0}.")",
				'to'=>"rgb(".$colors{N0}.")",
			#	'values'=>"30",
				'dur'=>"10s",
			#	'repeatDur'=>"freeze"
				'restart'=>"whenNotActive"
			);
			$cl->animate
			(
				'attributeName'=>"stroke",
				'begin'=>"mouseover",
				'end'=>"mouseout",
				'from'=>"rgb(".$colors{L0}.")",
				'to'=>"rgb(".$colors{B2}.")",
			#	'values'=>"30",
				'dur'=>"10s",
			#	'repeatDur'=>"freeze"
				'restart'=>"whenNotActive"
			);
=cut
	
			$data_w="0" unless $data_w;
			my $d_x=3;
			my $d_y=-2;
	
			if ($self->{ENV}{show_data_background} || $self->{columns}{$column}->{ENV}{show_data_background})
			{
				my $rx="2pt";
				my $ry="2pt";
				my $width=length($data_w)*5;
				my $fill="rgb(255,255,255)";
				my $fill_opacity="0.5";
		
				if ($self->{columns}{$column}->{ENV}{show_data_summary})
				{
					$width=length($self->GetRowSum($row))*5;
					$rx="0pt";
					$ry="0pt";
					$fill="rgb(255,255,255)";
					$fill_opacity="1";
				}
		
				$self->{SVG}->rect(
					'x' => (($self->{block_left}+$x)-1+$d_x),
					'y' => (($self->{block_down}-$height-3)-8+$d_y),
					'width' => $width+3,
					'height' => 10,
					'fill'	=>$fill,
					'fill-opacity'	=>$fill_opacity,
					'stroke'		=>"rgb(125,125,125)",
					'stroke-width'	=>"1pt",
					'stroke-linecap'	=>"round",
					'stroke-linejoin'	=>"round",
					'rx' => $rx,
					'ry' => $ry,
				);
		
			}
	
			if ($self->{ENV}{show_data} || $self->{columns}{$column}->{ENV}{show_data})
			{
				$self->{SVG}->text
				(
					'x'	=>	($self->{block_left}+$x+$d_x),
					'y'	=>	($self->{block_down}-$height-3+$d_y),
					style => 
					{
						'font-family'	=> 'Verdana',
						'font-size'		=> '8pt',
						'font-weight'	=> 400,
	#					'fill'		=>	"rgb(".$colors{B3}.")",
						'fill'	=>	"rgb(0,0,0)",
	#					'stroke'		=>	"rgb(0,0,0)",
	#					'stroke-width'	=>	"1pt",
						'stroke-linecap'	=>"round",
						'stroke-linejoin'	=>"round",
					},
				)->cdata($data_w.$self->{'ENV'}{'data_suffix'});
			}
	
			if ($self->{columns}{$column}->{ENV}{show_data_summary})
			{
				$self->{SVG}->text
				(
					'x'	=>	($self->{block_left}+$x+$d_x),
					'y'	=>	($self->{block_down}-$height-3+$d_y),
					style => 
					{
						'font-family'	=> 'Verdana',
						'font-size'		=> 8,
						'font-weight'	=> 400,
	#					'fill'		=>	"rgb(".$colors{B3}.")",
						'fill'	=>	"rgb(0,0,0)",
	#					'stroke'		=>	"rgb(0,0,0)",
	#					'stroke-width'	=>	"1pt",
						'stroke-linecap'	=>"round",
						'stroke-linejoin'	=>"round",
					},
				)->cdata($self->GetRowSum($row));
			}

   
#   $width=int($width*100)/100;
   
   			$rows++;
  		}

 	}
 
 
 
 
 
 # drawing the lines
=head1
	my @data_stacked;
	foreach my $column(keys %{$self->{columns}})
	{
		my $color=$self->{columns}->{$column}{ENV}{color};
		my %colors=%{$SVGraph::colors::table{$color}};
		
		my $count;
		my $points;
		
		foreach my $row(@{$self->{row}{label}})
		{
			my $data=$self->{columns}{$column}->{data}{$row};  
			my $data_o=$data; # data original
			my $data_w=$data; # data for display;
			$count++;   
			$data=$data/($self->GetRowSum($row)/100) if $self->{ENV}{type}=~/percentage/;   
			$data_stacked[$count]+=$data;
			#$data=$data_stacked[$count] if $self->{ENV}{type}=~/stacked/;
			if ($self->{ENV}{type}=~/stacked/)
			{
				if ($self->{ENV}{type}=~/percentage/)
				{
					#$data_w="$data_o(".((int($data*100))/100)."%)";
					$data_w=((int($data*100))/100)."%";
					$data=100-$data_stacked[$count]+$data;
   				}
				else
				{
					#$data=$self->GetRowSum($count-1)-$data_stacked[$count]+$data;
					$data=$self->GetRowSum($row)-$data_stacked[$count]+$data;
				}
   			}
   
			my $height=(($data-$self->{grid_y_scale_minimum})/($self->{grid_y_scale}/100))*($self->{block_height}/100);
			$height=int($height*100)/100;
			$height=0 if $height < 0;
			$height=$self->{block_height} if $height > $self->{block_height};
   
			my $width=($count-1)*($self->{block_width}/($self->{grid_x_main_lines}-1));
			
			$width+=($count*10);
			
			print "mam $count\n";
			
			$width=int($width*100)/100;
			
			
			
			$self->{SVG}->polyline(
			points	=>	
				($self->{block_left}+$width).",".($self->{block_down})." ".
				($self->{block_left}+$width+10).",".($self->{block_down})." ".
				($self->{block_left}+$width+10).",".($self->{block_down}-$height)." ".
				($self->{block_left}+$width).",".($self->{block_down}-$height)." ".
				($self->{block_left}+$width).",".($self->{block_down})." ",
				'stroke-width'	=>"1.5pt",
				'stroke'		=>"black",
			#	'stroke-'		=>"black",
				'stroke-linecap'	=>"round",
				'stroke-linejoin'	=>"round",
				'fill'			=>"rgb(".$colors{N0}.")",
				'fill-opacity'	=>"0.5",
			#	'stroke-linecap'=>"square",
			); 
   
  		}

	}
=cut





	$self->prepare_axis_x_markArea(front=>1);
	$self->prepare_axis_x_mark(front=>1);
	$self->prepare_axis_y_markArea(front=>1);
	$self->prepare_axis_y_mark(front=>1);


	$self->prepare_axis();
 
	$self->prepare_legend_label();
 
 # output 
	$self->{SVG_out}=$self->{SVG}->xmlify
	(
#	-namespace => "svga",
#	-pubid => "-//W3C//DTD SVG 1.0//EN",
		-inline   => 1
	);
 
	return $self->{SVG_out};
}