<?php
/**
 * File containing the ezcGraphRenderer2D class
 *
 * @package Graph
 * @version //autogentag//
 * @copyright Copyright (C) 2005, 2006 eZ systems as. All rights reserved.
 * @license http://ez.no/licenses/new_bsd New BSD License
 */
/**
 * Implements the three dimensional renderer for the graph component
 *
 * @package Graph
 */
class ezcGraphRenderer2D extends ezcGraphRenderer
{

    /**
     * Draw a pie segment
     * 
     * @param ezcGraphCoordinate $position 
     * @param mixed $radius 
     * @param float $startAngle 
     * @param float $endAngle 
     * @param float $moveOut 
     * @return void
     */
    public function drawPieSegment( ezcGraphColor $color, ezcGraphCoordinate $position, $radius, $startAngle = .0, $endAngle = 360., $moveOut = .0 )
    {
        $direction = $startAngle + ( $endAngle - $startAngle ) / 2;

        if ( $moveOut > 0 )
        {
            $position = new ezcGraphCoordinate(
                $position->x + $moveOut * cos( deg2rad( $direction ) ),
                $position->y + $moveOut * sin( deg2rad( $direction ) )
            );

        }
        
        $darkenedColor = $color->darken( .5 );

        $this->driver->drawCircleSector(
            $position,
            $radius * 2,
            $radius * 2,
            $startAngle,
            $endAngle,
            $color,
            true
        );

        $this->driver->drawCircleSector(
            $position,
            $radius * 2,
            $radius * 2,
            $startAngle,
            $endAngle,
            $darkenedColor,
            false
        );
    }
    
    /**
     * Draw a line
     *
     * Semantically means a line as a chart element, not a single line like
     * the ones used in axes.
     * 
     * @param ezcGraphCoordinate $position 
     * @param ezcGraphCoordinate $end 
     * @param mixed $filled 
     * @return void
     */
    public function drawLine( ezcGraphColor $color, ezcGraphCoordinate $position, ezcGraphCoordinate $end, $thickness = 1 )
    {
        $this->driver->drawLine(
            $position,
            $end,
            $color,
            max( 1, $thickness )
        );
    }
    
    /**
     * Draws a text box
     * 
     * @param ezcGraphCoordinate $position 
     * @param mixed $text 
     * @param mixed $width 
     * @param mixed $height 
     * @return void
     */
    public function drawTextBox( ezcGraphCoordinate $position, $text, $width = null, $height = null, $align = ezcGraph::LEFT )
    {
        $this->driver->drawTextBox(
            $text,
            $position,
            $width,
            $height,
            $align
        );
    }
    
    /**
     * Draws a rectangle
     *
     * @param ezcGraphColor $color 
     * @param ezcGraphCoordinate $position 
     * @param mixed $width 
     * @param mixed $height 
     * @param float $borderWidth 
     * @return void
     */
    public function drawRect( ezcGraphColor $color, ezcGraphCoordinate $position = null, $width = null, $height = null, $borderWidth = 1 )
    {
        $this->driver->drawPolygon( 
            array(
                new ezcGraphCoordinate( $position->x, $position->y ),
                new ezcGraphCoordinate( $position->x + $width, $position->y ),
                new ezcGraphCoordinate( $position->x + $width, $position->y + $height ),
                new ezcGraphCoordinate( $position->x, $position->y + $height ),
            ),
            $color,
            false,
            $borderWidth
        ); 
    }
    
    /**
     * Draw Background
     *
     * Draws a filled rectangle, used for backgrounds
     * 
     * @param ezcGraphColor $color 
     * @param ezcGraphCoordinate $position 
     * @param mixed $width 
     * @param mixed $height 
     * @return void
     */
    public function drawBackground( ezcGraphColor $color, ezcGraphCoordinate $position = null, $width = null, $height = null )
    {
        $this->driver->drawPolygon(
            array(
                $position,
                new ezcGraphCoordinate( $position->x + $width, $position->y ),
                new ezcGraphCoordinate( $position->x + $width, $position->y + $height ),
                new ezcGraphCoordinate( $position->x, $position->y + $height )
            ),
            $color,
            true
        );
        
    }
    
    /**
     * Draws BackgrouniImage
     * 
     * @param mixed $file 
     * @param ezcGraphCoordinate $position 
     * @param mixed $width 
     * @param mixed $height 
     * @return void
     */
    public function drawBackgroundImage( $file, ezcGraphCoordinate $position = null, $width = null, $height = null )
    {
        $this->driver->drawImage(
            $file,
            $position,
            $width,
            $height
        );  
    }
    
    /**
     * Draws a lines symbol
     * 
     * @param ezcGraphCoordinate $position 
     * @param float $width 
     * @param float $height 
     * @param int $symbol 
     * @return void
     */
    public function drawSymbol( ezcGraphColor $color, ezcGraphCoordinate $position, $width, $height, $symbol = ezcGraph::NO_SYMBOL)
    {
        switch ( $symbol )
        {
            case ezcGraph::NO_SYMBOL:
                $this->driver->drawPolygon(
                    array(
                        $position,
                        new ezcGraphCoordinate( $position->x + $width, $position->y ),
                        new ezcGraphCoordinate( $position->x + $width, $position->y + $height ),
                        new ezcGraphCoordinate( $position->x, $position->y + $height )
                    ),
                    $color,
                    true
                );
                break;
            case ezcGraph::DIAMOND:
                $this->driver->drawPolygon(
                    array(
                        new ezcGraphCoordinate( $position->x + $width / 2, $position->y ),
                        new ezcGraphCoordinate( $position->x + $width, $position->y + $height / 2 ),
                        new ezcGraphCoordinate( $position->x + $width / 2 , $position->y + $height ),
                        new ezcGraphCoordinate( $position->x, $position->y + $height / 2 )
                    ),
                    $color,
                    true
                );
                break;
            case ezcGraph::BULLET:
                $this->driver->drawCircle(
                    new ezcGraphCoordinate( $position->x + $width / 2, $position->y + $height / 2 ),
                    $width,
                    $height,
                    $color,
                    true
                );
                break;
            case ezcGraph::CIRCLE:
                $this->driver->drawCircle(
                    new ezcGraphCoordinate( $position->x + $width / 2, $position->y + $height / 2 ),
                    $width,
                    $height,
                    $color,
                    false
                );
                break;
        }
    }
}

?>