VS::Chart::Color::Gradient - A gradient color.

VS-Chart documentation Contained in the VS-Chart distribution.

Index

Code Index:

NAME

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VS::Chart::Color::Gradient - A gradient color.

DESCRIPTION

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This color renders as a gradient from one color to the other. First color is positioned at the top of the image and the second on the bottom.

INTERFACE

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CLASS METHODS

new ( COLOR, COLOR )

Creates a new gradient from COLOR to COLOR.

INSTANCE METHODS

set ( CONTEXT, SURFACE, WIDTH, HEIGHT )

Sets the the context to use this color.

VS-Chart documentation Contained in the VS-Chart distribution. 
package VS::Chart::Color::Gradient;

use strict;
use warnings;

sub new {
    my ($pkg, $c1, $c2) = @_;
    my $self = bless [$c1, $c2], $pkg;
    return $self;
}

sub set {
    my ($self, $cx, $surface, $width, $height) = @_;
    
    my $gr = Cairo::LinearGradient->create(0, 0, 0, $height);
    $gr->add_color_stop_rgba(0, @{$self->[0]});
    $gr->add_color_stop_rgba(1, @{$self->[1]});
    
    $cx->set_source($gr);
}

1;
__END__