/**
* 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();
$cellDimension = $grid->getCellDimension();
$margin = $diagram->getMargin();
$cellWidth = $cellDimension->getWidth();
$cellHeight = $cellDimension->getHeight();
$objects = $grid->getDiagramObjects();
foreach ($objects as $object) {
$gridPoint = $object->getGridPoint();
$drawX = $gridPoint->getX() * $cellWidth + $margin;
$drawY = $gridPoint->getY() * $cellHeight + $margin;
$drawPoint = new Point($drawX, $drawY);
$object->draw($image, $drawPoint);
}
}
/**
* 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();
$width = $image->getWidth();
$height = $image->getHeight();
$cellDimension = $grid->getCellDimension();
$margin = $diagram->getMargin();
$cellWidth = $cellDimension->getWidth();
$cellHeight = $cellDimension->getHeight();
// take margin into account and go out of the image to start the grid
$loopX = $loopY = $this->helperLocation - 1;
$x = $margin;
while ($x > 0) {
$x -= $cellWidth;
$loopX--;
}
$y = $margin;
while ($y > 0) {
$y -= $cellHeight;
$loopY--;
}
// draw the X-axis
for (; $x < $width; $x += $cellWidth) {
$loopX++;
if ($loopX == $this->helperLocation) {
$color = $this->helperColor;
$loopX = 0;
} else {
$color = $this->gridColor;
}
$image->drawLine(new Point($x, 0), new Point($x, $height), $color);
}
// draw the Y-axis
for (; $y < $height; $y += $cellHeight) {
$loopY++;
if ($loopY == $this->helperLocation) {
$color = $this->helperColor;
$loopY = 0;
} else {
$color = $this->gridColor;
}
$image->drawLine(new Point(0, $y), new Point($width, $y), $color);
}
}
/**
* 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 a diagram object and adds the necessairy layers
* @return zibo\library\diagram\Diagram
*/
protected function createDiagram()
{
$connectionLayer = new ConnectionLayer();
$connectionLayer->addPathFinder(new AstarPathFinder());
$diagram = new Diagram();
$diagram->addLayer(new GridLayer());
$diagram->addLayer(new ObjectLayer());
$diagram->addLayer($connectionLayer);
return $diagram;
}
/**
* Gets the point for the provided id of a diagram object
* @param string|zibo\library\image\Point $id Id of the diagram object or a point
* @param zibo\library\diagram\Diagram $diagram The diagram we're drawing
* @return zibo\library\image\Point The provided point or the point of the provided diagram object
*/
private function getDiagramObjectPoint($id, Diagram $diagram)
{
if ($id instanceof Point) {
return $id;
}
$grid = $diagram->getGrid();
$object = $grid->getDiagramObject($point);
return $object->getGridPoint();
}
/**
* Gets the actual location of the field in the image and updates the begin and end point of the connection
* @param zibo\library\diagram\Diagram $diagram The diagram we're drawing
* @return null
*/
public function preDraw(Diagram $diagram)
{
$grid = $diagram->getGrid();
$beginModel = $grid->getDiagramObject($this->begin);
$endModel = $grid->getDiagramObject($this->end);
// Get the field points left or right of the model boxes
$beginFieldPoint = $beginModel->getFieldPoint($this->beginFieldName);
$endFieldPoint = $endModel->getFieldPoint($this->endFieldName);
$beginWidth = $beginModel->getDimension()->getWidth();
$endWidth = $endModel->getDimension()->getWidth();
$beginX = $beginFieldPoint->getX();
$endX = $endFieldPoint->getX();
$beginIsLeft = true;
$endIsLeft = true;
if ($beginX < $endX) {
if ($beginX + $beginWidth < $endX) {
$beginX += $beginWidth;
$beginIsLeft = false;
}
} else {
if ($beginX > $endX + $endWidth) {
$endX += $endWidth;
$endIsLeft = false;
}
}
$this->beginPoint = new Point($beginX, $beginFieldPoint->getY());
$this->endPoint = new Point($endX, $endFieldPoint->getY());
// Now get a point in the grid 2 cells away from the model box
$margin = $diagram->getMargin();
$beginGridPoint = $grid->getGridPoint(new Point($this->beginPoint->getX() - $margin, $this->beginPoint->getY() - $margin));
$endGridPoint = $grid->getGridPoint(new Point($this->endPoint->getX() - $margin, $this->endPoint->getY() - $margin));
$beginGridX = $beginGridPoint->getX();
$beginGridY = $beginGridPoint->getY();
$endGridX = $endGridPoint->getX();
$endGridY = $endGridPoint->getY();
$needsUp = $grid->needsUp($beginGridY, $endGridY);
if ($needsUp === true) {
$beginGridY--;
if ($beginGridY != $endGridY) {
$endGridY++;
}
} elseif ($needsUp === false) {
$beginGridY++;
if ($beginGridY != $endGridY) {
$endGridY--;
}
}
$offset = 2;
if ($beginIsLeft) {
$beginGridX -= $offset;
} else {
$beginGridX += $offset;
}
if ($endIsLeft) {
$endGridX -= $offset;
} else {
$endGridX += $offset;
}
$beginGridX = max($beginGridX, -1);
$beginGridY = max($beginGridY, -1);
$endGridX = max($endGridX, -1);
$endGridY = max($endGridY, -1);
$this->begin = new Point($beginGridX, $beginGridY);
$this->end = new Point($endGridX, $endGridY);
}
/**
* Sets the diagram for the finder
* @param zibo\library\diagram\Diagram $diagram The diagram we're drawing
* @return null
*/
public function setDiagram(Diagram $diagram)
{
$this->diagram = $diagram;
$this->grid = $diagram->getGrid();
}
