diff options
Diffstat (limited to 'src/renderer/axis_label_centered.php')
| -rw-r--r-- | src/renderer/axis_label_centered.php | 96 |
1 files changed, 82 insertions, 14 deletions
diff --git a/src/renderer/axis_label_centered.php b/src/renderer/axis_label_centered.php index 23813b1..1744052 100644 --- a/src/renderer/axis_label_centered.php +++ b/src/renderer/axis_label_centered.php @@ -17,12 +17,24 @@ class ezcGraphAxisCenteredLabelRenderer extends ezcGraphAxisLabelRenderer { /** - * Show the last value on the axis, which will be aligned different than - * all other values, to not interfere with the arrow head of the axis. - * + * Show the value at the zero point of an axis. This value might be + * crossed by the other axis which would result in an unreadable label. + * * @var boolean */ - protected $showLastValue = true; + protected $showZeroValue = false; + + public function __set( $propertyName, $propertyValue ) + { + switch ( $propertyName ) + { + case 'showZeroValue': + $this->showZeroValue = (bool) $propertyValue; + break; + default: + return parent::__set( $propertyName, $propertyValue ); + } + } /** * Render Axis labels @@ -43,7 +55,6 @@ class ezcGraphAxisCenteredLabelRenderer extends ezcGraphAxisLabelRenderer ezcGraphCoordinate $end, ezcGraphChartElementAxis $axis ) { - /* // receive rendering parameters from axis $this->majorStepCount = $axis->getMajorStepCount(); $this->minorStepCount = $axis->getMinorStepCount(); @@ -85,21 +96,77 @@ class ezcGraphAxisCenteredLabelRenderer extends ezcGraphAxisLabelRenderer ); } + // Determine size of labels + switch ( $axis->position ) + { + case ezcGraph::RIGHT: + case ezcGraph::LEFT: + $labelWidth = min( + abs( $majorStep->x ), + ( $boundings->x1 - $boundings->x0 ) * $axis->axisSpace * 2 + ); + $labelHeight = ( $boundings->y1 - $boundings->y0 ) * $axis->axisSpace; + break; + case ezcGraph::BOTTOM: + case ezcGraph::TOP: + $labelWidth = ( $boundings->x1 - $boundings->x0 ) * $axis->axisSpace; + $labelHeight = min( + abs( $majorStep->y ), + ( $boundings->y1 - $boundings->y0 ) * $axis->axisSpace * 2 + ); + break; + } + // Draw steps and grid $step = 0; while ( $step <= $this->majorStepCount ) { - // major grid - if ( $axis->majorGrid ) + if ( ! $axis->isZeroStep( $step ) ) { - $this->drawGrid( $renderer, $gridBoundings, $start, $majorStep, $axis->majorGrid ); + // major grid + if ( $axis->majorGrid ) + { + $this->drawGrid( $renderer, $gridBoundings, $start, $majorStep, $axis->majorGrid ); + } + + // major step + $this->drawStep( $renderer, $start, $direction, $axis->position, $this->majorStepSize, $axis->border ); } - // major step - $this->drawStep( $renderer, $start, $direction, $axis->position, $this->majorStepSize, $axis->border ); - - - ++$step; + // draw label + if ( $this->showZeroValue || ! $axis->isZeroStep( $step ) ) + { + $label = $axis->getLabel( $step ); + switch ( $axis->position ) + { + case ezcGraph::TOP: + case ezcGraph::BOTTOM: + $renderer->drawText( + new ezcGraphBoundings( + $start->x - $labelWidth + $this->labelPadding, + $start->y - $labelHeight / 2 + $this->labelPadding, + $start->x - $this->labelPadding, + $start->y + $labelHeight / 2 - $this->labelPadding + ), + $label, + ezcGraph::MIDDLE | ezcGraph::RIGHT + ); + break; + case ezcGraph::LEFT: + case ezcGraph::RIGHT: + $renderer->drawText( + new ezcGraphBoundings( + $start->x - $labelWidth / 2 + $this->labelPadding, + $start->y + $this->labelPadding, + $start->x + $labelWidth / 2 - $this->labelPadding, + $start->y + $labelHeight - $this->labelPadding + ), + $label, + ezcGraph::CENTER | ezcGraph::TOP + ); + break; + } + } // second iteration for minor steps, if wanted if ( $this->minorStepCount ) @@ -127,7 +194,8 @@ class ezcGraphAxisCenteredLabelRenderer extends ezcGraphAxisLabelRenderer $start->x += $majorStep->x; $start->y += $majorStep->y; - } */ + ++$step; + } } } ?> |
