* $chart->xAxis->axisLabelRenderer = new ezcGraphAxisBoxedLabelRenderer(); * * * @version //autogentag// * @package Graph * @mainclass */ class ezcGraphAxisBoxedLabelRenderer extends ezcGraphAxisLabelRenderer { /** * Store step array for later coordinate modifications * * @var array(ezcGraphStep) */ protected $steps; /** * Store direction for later coordinate modifications * * @var ezcGraphVector */ protected $direction; /** * Store coordinate width modifier for later coordinate modifications * * @var float */ protected $widthModifier; /** * Constructor * * @param array $options Default option array * @return void * @ignore */ public function __construct( array $options = array() ) { parent::__construct( $options ); $this->properties['outerStep'] = true; } /** * Render Axis labels * * Render labels for an axis. * * @param ezcGraphRenderer $renderer Renderer used to draw the chart * @param ezcGraphBoundings $boundings Boundings of the axis * @param ezcGraphCoordinate $start Axis starting point * @param ezcGraphCoordinate $end Axis ending point * @param ezcGraphChartElementAxis $axis Axis instance * @return void */ public function renderLabels( ezcGraphRenderer $renderer, ezcGraphBoundings $boundings, ezcGraphCoordinate $start, ezcGraphCoordinate $end, ezcGraphChartElementAxis $axis, ezcGraphBoundings $innerBoundings = null ) { // receive rendering parameters from axis $steps = $axis->getSteps(); $this->steps = $steps; $axisBoundings = new ezcGraphBoundings( $start->x, $start->y, $end->x, $end->y ); // Determine normalized axis direction $this->direction = new ezcGraphVector( $end->x - $start->x, $end->y - $start->y ); $this->direction->unify(); // Get axis space $gridBoundings = null; list( $xSpace, $ySpace ) = $this->getAxisSpace( $renderer, $boundings, $axis, $innerBoundings, $gridBoundings ); // Determine additional required axis space by boxes $firstStep = reset( $steps ); $lastStep = end( $steps ); $this->widthModifier = 1 + $firstStep->width / 2 + $lastStep->width / 2; // Draw steps and grid foreach ( $steps as $nr => $step ) { $position = new ezcGraphCoordinate( $start->x + ( $end->x - $start->x ) * ( $step->position + $step->width ) / $this->widthModifier, $start->y + ( $end->y - $start->y ) * ( $step->position + $step->width ) / $this->widthModifier ); $stepWidth = $step->width / $this->widthModifier; $stepSize = new ezcGraphCoordinate( $axisBoundings->width * $stepWidth, $axisBoundings->height * $stepWidth ); if ( $this->showLabels ) { // Calculate label boundings switch ( true ) { case ( abs( $this->direction->x ) > abs( $this->direction->y ) ) && ( $this->direction->x > 0 ): $labelBoundings = new ezcGraphBoundings( $position->x - $stepSize->x + $this->labelPadding, $position->y + $this->labelPadding, $position->x - $this->labelPadding, $position->y + $ySpace - $this->labelPadding ); $alignement = ezcGraph::CENTER | ezcGraph::TOP; break; case ( abs( $this->direction->x ) > abs( $this->direction->y ) ) && ( $this->direction->x < 0 ): $labelBoundings = new ezcGraphBoundings( $position->x + $this->labelPadding, $position->y + $this->labelPadding, $position->x + $stepSize->x - $this->labelPadding, $position->y + $ySpace - $this->labelPadding ); $alignement = ezcGraph::CENTER | ezcGraph::TOP; break; case ( $this->direction->y > 0 ): $labelBoundings = new ezcGraphBoundings( $position->x - $xSpace + $this->labelPadding, $position->y - $stepSize->y + $this->labelPadding, $position->x - $this->labelPadding, $position->y - $this->labelPadding ); $alignement = ezcGraph::MIDDLE | ezcGraph::RIGHT; break; case ( $this->direction->y < 0 ): $labelBoundings = new ezcGraphBoundings( $position->x - $xSpace + $this->labelPadding, $position->y + $this->labelPadding, $position->x - $this->labelPadding, $position->y + $stepSize->y - $this->labelPadding ); $alignement = ezcGraph::MIDDLE | ezcGraph::RIGHT; break; } $renderer->drawText( $labelBoundings, $step->label, $alignement ); } // major grid if ( $axis->majorGrid ) { $this->drawGrid( $renderer, $gridBoundings, $position, $stepSize, $axis->majorGrid ); } // major step $this->drawStep( $renderer, $position, $this->direction, $axis->position, $this->majorStepSize, $axis->border ); } } /** * Modify chart data position * * Optionally additionally modify the coodinate of a data point * * @param ezcGraphCoordinate $coordinate Data point coordinate * @return ezcGraphCoordinate Modified coordinate */ public function modifyChartDataPosition( ezcGraphCoordinate $coordinate ) { $firstStep = reset( $this->steps ); $offset = $firstStep->width / 2 / $this->widthModifier; return new ezcGraphCoordinate( $coordinate->x * abs( $this->direction->y ) + ( $coordinate->x / $this->widthModifier + $offset ) * abs( $this->direction->x ), $coordinate->y * abs( $this->direction->x ) + ( $coordinate->y / $this->widthModifier + $offset ) * abs( $this->direction->y ) ); } } ?>