/**
* Draws the layers content on the image
* @param zibo\library\image\Image $image The image to draw upon
* @param zibo\library\diagram\Diagram $diagram The diagram we're drawing
* @return null
*/
public function draw(Image $image, Diagram $diagram)
{
$grid = $diagram->getGrid();
$margin = $diagram->getMargin();
$cellDimension = $grid->getCellDimension();
$cellWidth = $cellDimension->getWidth();
$cellHeight = $cellDimension->getHeight();
$gridDimension = $grid->getGridDimension();
$gridWidth = $gridDimension->getWidth();
$gridHeight = $gridDimension->getHeight();
for ($x = 0; $x <= $gridWidth; $x++) {
for ($y = 0; $y <= $gridHeight; $y++) {
if ($grid->isFree(new Point($x, $y))) {
continue;
}
$pointX = $x * $cellWidth + $margin;
$pointY = $y * $cellHeight + $margin;
$point = new Point($pointX, $pointY);
$image->fillRectangle($point, $cellDimension, $this->color);
}
}
}
/**
* Creates the image needed to draw the layers out of the grid
* @return zibo\library\image\Image
*/
private function createImage()
{
$gridDimension = $this->grid->getGridDimension();
$cellDimension = $this->grid->getCellDimension();
$margin = 2 * $this->margin;
$width = $gridDimension->getWidth() * $cellDimension->getWidth() + $margin;
$height = $gridDimension->getHeight() * $cellDimension->getHeight() + $margin;
$image = new Image(null, $width, $height);
$image->fillRectangle(new Point(0, 0), new Dimension($width, $height), $this->backgroundColor);
return $image;
}
