/**
* Function: getScaledLabelBounds
*
* Returns the bounds for a label for the given location and size, taking
* into account the alignment and spacing in the specified style, as well
* as the width and height of the rectangle that contains the label.
* (For edge labels this width and height is 0.) The scale is used to scale
* the given size and the spacings in the specified style.
*/
static function getScaledLabelBounds($x, $y, $size, $outerWidth, $outerHeight, $style, $scale)
{
// Adds an inset of 3 pixels
$inset = mxConstants::$LABEL_INSET * $scale;
// Scales the size of the label
$width = $size->width * $scale + 2 * $inset;
$height = $size->height * $scale;
// Gets the global spacing and orientation
$horizontal = mxUtils::getValue($style, mxConstants::$STYLE_HORIZONTAL, true);
$spacing = mxUtils::getNumber($style, mxConstants::$STYLE_SPACING) * $scale;
// Gets the alignment settings
$align = mxUtils::getValue($style, mxConstants::$STYLE_ALIGN, mxConstants::$ALIGN_CENTER);
$valign = mxUtils::getValue($style, mxConstants::$STYLE_VERTICAL_ALIGN, mxConstants::$ALIGN_MIDDLE);
// Gets the vertical spacing
$top = mxUtils::getNumber($style, mxConstants::$STYLE_SPACING_TOP) * $scale;
$bottom = mxUtils::getNumber($style, mxConstants::$STYLE_SPACING_BOTTOM) * $scale;
// Gets the horizontal spacing
$left = mxUtils::getNumber($style, mxConstants::$STYLE_SPACING_LEFT) * $scale;
$right = mxUtils::getNumber($style, mxConstants::$STYLE_SPACING_RIGHT) * $scale;
// Applies the orientation to the spacings and dimension
if (!$horizontal) {
$tmp = $top;
$top = $right;
$right = $bottom;
$bottom = $left;
$left = $tmp;
$tmp = $width;
$width = $height;
$height = $tmp;
}
// Computes the position of the label for the horizontal alignment
if ($horizontal && $align == mxConstants::$ALIGN_CENTER || !$horizontal && $valign == mxConstants::$ALIGN_MIDDLE) {
$x += ($outerWidth - $width) / 2 + $left - $right;
} else {
if ($horizontal && $align == mxConstants::$ALIGN_RIGHT || !$horizontal && $valign == mxConstants::$ALIGN_BOTTOM) {
$x += $outerWidth - $width - $spacing - $right;
} else {
$x += $spacing + $left;
}
}
// Computes the position of the label for the vertical alignment
if (!$horizontal && $align == mxConstants::$ALIGN_CENTER || $horizontal && $valign == mxConstants::$ALIGN_MIDDLE) {
$y += ($outerHeight - $height) / 2 + $top - $bottom;
} else {
if (!$horizontal && $align == mxConstants::$ALIGN_LEFT || $horizontal && $valign == mxConstants::$ALIGN_BOTTOM) {
$y += $outerHeight - $height - $spacing - $bottom;
} else {
$y += $spacing + $top;
}
}
return new mxRectangle($x, $y, $width, $height);
}
/**
* Function: drawShape
*
* Draws the given shape.
*/
function drawShape($x, $y, $w, $h, $style)
{
// Draws the shape
$shape = mxUtils::getValue($style, mxConstants::$STYLE_SHAPE);
$image = $shape == mxConstants::$SHAPE_IMAGE;
// Redirects background styles for image shapes
$fillStyle = $image ? mxConstants::$STYLE_IMAGE_BACKGROUND : mxConstants::$STYLE_FILLCOLOR;
$strokeStyle = $image ? mxConstants::$STYLE_IMAGE_BORDER : mxConstants::$STYLE_STROKECOLOR;
// Prepares the background and foreground
$stroke = mxUtils::getValue($style, $strokeStyle);
$fill = mxUtils::getValue($style, $fillStyle);
if ($stroke == "none") {
$stroke = null;
}
if ($fill == "none") {
$fill = null;
}
if ($fill != null || $stroke != null || $image) {
$shadow = mxUtils::getValue($style, mxConstants::$STYLE_SHADOW);
$strokeWidth = mxUtils::getValue($style, mxConstants::$STYLE_STROKEWIDTH, 1) * $this->scale;
if (isset($this->image)) {
imagesetthickness($this->image, $strokeWidth);
}
if ($shape == mxConstants::$SHAPE_ELLIPSE) {
$this->drawOval($x, $y, $w, $h, $fill, $stroke, $shadow);
} else {
if ($shape == mxConstants::$SHAPE_LINE) {
$direction = mxUtils::getValue($style, mxConstants::$STYLE_DIRECTION, mxConstants::$DIRECTION_EAST);
if ($direction == mxConstants::$DIRECTION_EAST || $direction == mxConstants::$DIRECTION_WEST) {
$mid = $y + $h / 2;
$this->drawLine($x, $mid, $x + $w, $mid, $stroke);
} else {
$mid = $x + $w / 2;
$this->drawLine($mid, $y, $mid, $y + $h, $stroke);
}
} else {
if ($shape == mxConstants::$SHAPE_DOUBLE_ELLIPSE) {
$this->drawOval($x, $y, $w, $h, $fill, $stroke, $shadow);
$inset = (3 + 1) * $this->scale;
$x += $inset;
$y += $inset;
$w -= 2 * $inset;
$h -= 2 * $inset;
$this->drawOval($x, $y, $w, $h, null, $stroke, false);
} else {
if ($shape == mxConstants::$SHAPE_RHOMBUS) {
$this->drawRhombus($x, $y, $w, $h, $fill, $stroke, $shadow);
} else {
if ($shape == mxConstants::$SHAPE_TRIANGLE) {
$dir = mxUtils::getValue($style, mxConstants::$STYLE_DIRECTION);
$this->drawTriangle($x, $y, $w, $h, $fill, $stroke, $shadow, $dir);
} else {
if ($shape == mxConstants::$SHAPE_HEXAGON) {
$dir = mxUtils::getValue($style, mxConstants::$STYLE_DIRECTION);
$this->drawHexagon($x, $y, $w, $h, $fill, $stroke, $shadow, $dir);
} else {
if ($shape == mxConstants::$SHAPE_CYLINDER) {
$this->drawCylinder($x, $y, $w, $h, $fill, $stroke, $shadow);
} else {
if ($shape == mxConstants::$SHAPE_CLOUD) {
$this->drawCloud($x, $y, $w, $h, $fill, $stroke, $shadow);
} else {
if ($shape == mxConstants::$SHAPE_ACTOR) {
$this->drawActor($x, $y, $w, $h, $fill, $stroke, $shadow);
} else {
$rounded = mxUtils::getValue($style, mxConstants::$STYLE_ROUNDED);
$dashed = mxUtils::getNumber($style, mxConstants::$STYLE_DASHED);
$this->drawRect($x, $y, $w, $h, $fill, $stroke, $shadow, $rounded, $dashed);
// Draws the image as a shape
if ($image) {
$img = $this->getImageForStyle($style);
if ($img != null) {
$aspect = mxGdCanvas::$PRESERVE_IMAGE_ASPECT;
$flipH = mxUtils::getValue($style, mxConstants::$STYLE_IMAGE_FLIPH, 0);
$flipV = mxUtils::getValue($style, mxConstants::$STYLE_IMAGE_FLIPV, 0);
$this->drawImage($x, $y, $w, $h, $img, $aspect, $flipH, $flipV);
}
}
// Draws the image of the label inside the label shape
if ($shape == mxConstants::$SHAPE_LABEL) {
$image = $this->getImageForStyle($style);
if ($image != null) {
$imgAlign = mxUtils::getValue($style, mxConstants::$STYLE_IMAGE_ALIGN);
$imgValign = mxUtils::getValue($style, mxConstants::$STYLE_IMAGE_VERTICAL_ALIGN);
$imgWidth = mxUtils::getNumber($style, mxConstants::$STYLE_IMAGE_WIDTH, mxConstants::$DEFAULT_IMAGESIZE) * $this->scale;
$imgHeight = mxUtils::getNumber($style, mxConstants::$STYLE_IMAGE_HEIGHT, mxConstants::$DEFAULT_IMAGESIZE) * $this->scale;
$spacing = mxUtils::getNumber($style, mxConstants::$STYLE_SPACING, 2) * $this->scale;
$imgX = $x;
if ($imgAlign == mxConstants::$ALIGN_LEFT) {
$imgX += $spacing;
} else {
if ($imgAlign == mxConstants::$ALIGN_RIGHT) {
$imgX += $w - $imgWidth - $spacing;
} else {
$imgX += ($w - $imgWidth) / 2;
}
}
$imgY = $y;
if ($imgValign == mxConstants::$ALIGN_TOP) {
$imgY += $spacing;
} else {
if ($imgValign == mxConstants::$ALIGN_BOTTOM) {
$imgY += $h - $imgHeight - $spacing;
} else {
$imgY += ($h - $imgHeight) / 2;
}
}
$this->drawImage($imgX, $imgY, $imgWidth, $imgHeight, $image);
}
}
}
}
}
}
}
}
}
}
}
if (isset($this->image)) {
imagesetthickness($this->image, 1);
}
}
}
/**
* Function: parseState
*
* Parses the bounds, absolute points and label information from the style
* of the state into its respective fields and returns the label of the
* cell.
*/
function parseState($state, $edge)
{
$style = $state->style;
// Parses the bounds
$state->x = mxUtils::getNumber($style, "x");
$state->y = mxUtils::getNumber($style, "y");
$state->width = mxUtils::getNumber($style, "width");
$state->height = mxUtils::getNumber($style, "height");
// Parses the absolute points list
$tmp = mxUtils::getValue($style, "points");
if (strlen($tmp) > 0) {
$pts = $this->parsePoints($tmp);
if (sizeof($pts) > 0) {
$state->absolutePoints = $pts;
}
}
// Parses the label and label bounds
$label = mxUtils::getValue($style, "label");
if ($label != null && strlen($label) > 0) {
$offset = new mxPoint(mxUtils::getNumber($style, "dx"), mxUtils::getNumber($style, "dy"));
$vertexBounds = !$edge ? $state : null;
$state->labelBounds = mxUtils::getLabelPaintBounds($label, $style, mxUtils::getValue($style, "html", false), $offset, $vertexBounds, $this->scale);
}
return $label;
}
/**
* Function: getPerimeterBounds
*
* Returns the perimeter bounds for the given terminal, edge pair as an
* <mxRectangle>.
*/
function getPerimeterBounds($terminal, $edge, $isSource)
{
$border = 0;
if ($edge != null) {
$border = mxUtils::getNumber($edge->style, mxConstants::$STYLE_PERIMETER_SPACING);
$border += mxUtils::getNumber($edge->style, $isSource ? mxConstants::$STYLE_SOURCE_PERIMETER_SPACING : mxConstants::$STYLE_TARGET_PERIMETER_SPACING);
}
if ($terminal != null) {
$border += mxUtils::getNumber($terminal->style, mxConstants::$STYLE_PERIMETER_SPACING);
}
return $terminal->getPerimeterBounds($border * $this->scale);
}
/**
* Function: drawShape
*
* Draws the given shape.
*/
function drawShape($shape, $x, $y, $w, $h, $fill = null, $stroke = null, $style = null)
{
$shadow = mxUtils::getValue($style, mxConstants::$STYLE_SHADOW);
if ($shape == mxConstants::$SHAPE_IMAGE) {
$image = $this->getImageForStyle($style);
if ($image != null) {
$this->drawImage($x, $y, $w, $h, $image);
}
} else {
if ($shape == mxConstants::$SHAPE_ELLIPSE) {
$this->drawOval($x, $y, $w, $h, $fill, $stroke, $shadow);
} else {
if ($shape == mxConstants::$SHAPE_LINE) {
$direction = mxUtils::getValue($style, mxConstants::$STYLE_DIRECTION, mxConstants::$STYLE_EAST);
if ($direction == mxConstants::$STYLE_EAST || $direction == mxConstants::$STYLE_WEST) {
$mid = $y + $h / 2;
$this->drawLine($x, $mid, $x + $w, $mid, $stroke);
} else {
$mid = $x + $w / 2;
$this->drawLine($mid, $y, $mid, $y + $h, $stroke);
}
} else {
if ($shape == mxConstants::$SHAPE_DOUBLE_ELLIPSE) {
$this->drawOval($x, $y, $w, $h, $fill, $stroke, $shadow);
$inset = (3 + 1) * $this->scale;
$x += $inset;
$y += $inset;
$w -= 2 * $inset;
$h -= 2 * $inset;
$this->drawOval($x, $y, $w, $h, null, $stroke, false);
} else {
if ($shape == mxConstants::$SHAPE_RHOMBUS) {
$this->drawRhombus($x, $y, $w, $h, $fill, $stroke, $shadow);
} else {
if ($shape == mxConstants::$SHAPE_TRIANGLE) {
$dir = mxUtils::getValue($style, mxConstants::$STYLE_DIRECTION);
$this->drawTriangle($x, $y, $w, $h, $fill, $stroke, $shadow, $dir);
} else {
if ($shape == mxConstants::$SHAPE_HEXAGON) {
$dir = mxUtils::getValue($style, mxConstants::$STYLE_DIRECTION);
$this->drawHexagon($x, $y, $w, $h, $fill, $stroke, $shadow, $dir);
} else {
if ($shape == mxConstants::$SHAPE_CYLINDER) {
$this->drawCylinder($x, $y, $w, $h, $fill, $stroke, $shadow);
} else {
if ($shape == mxConstants::$SHAPE_CLOUD) {
$this->drawCloud($x, $y, $w, $h, $fill, $stroke, $shadow);
} else {
if ($shape == mxConstants::$SHAPE_ACTOR) {
$this->drawActor($x, $y, $w, $h, $fill, $stroke, $shadow);
} else {
$round = mxUtils::getValue($style, mxConstants::$STYLE_ROUNDED);
$this->drawRect($x, $y, $w, $h, $fill, $stroke, $shadow, $round);
if ($shape == mxConstants::$SHAPE_LABEL) {
$image = $this->getImageForStyle($style);
if ($image != null) {
$imgAlign = mxUtils::getValue($style, mxConstants::$STYLE_IMAGE_ALIGN);
$imgValign = mxUtils::getValue($style, mxConstants::$STYLE_IMAGE_VERTICAL_ALIGN);
$imgWidth = mxUtils::getNumber($style, mxConstants::$STYLE_IMAGE_WIDTH, mxConstants::$DEFAULT_IMAGESIZE) * $this->scale;
$imgHeight = mxUtils::getNumber($style, mxConstants::$STYLE_IMAGE_HEIGHT, mxConstants::$DEFAULT_IMAGESIZE) * $this->scale;
$spacing = mxUtils::getNumber($style, mxConstants::$STYLE_SPACING, 2) * $this->scale;
$imgX = $x;
if ($imgAlign == mxConstants::$ALIGN_LEFT) {
$imgX += $spacing;
} else {
if ($imgAlign == mxConstants::$ALIGN_RIGHT) {
$imgX += $w - $imgWidth - $spacing;
} else {
$imgX += ($w - $imgWidth) / 2;
}
}
$imgY = $y;
if ($imgValign == mxConstants::$ALIGN_TOP) {
$imgY += $spacing;
} else {
if ($imgValign == mxConstants::$ALIGN_BOTTOM) {
$imgY += $h - $imgHeight - $spacing;
} else {
$imgY += ($h - $imgHeight) / 2;
}
}
$this->drawImage($imgX, $imgY, $imgWidth, $imgHeight, $image);
}
}
}
}
}
}
}
}
}
}
}
}
}
/**
* Function: getPerimeterBounds
*
* Returns the perimeter bounds for the given terminal, edge pair as an
* <mxRectangle>.
*
* Parameters:
*
* terminal - <mxCellState> that represents the terminal.
* border - Number that adds a border between the shape and the perimeter.
*/
function getPerimeterBounds($terminal, $border = 0)
{
if ($terminal != null) {
$border += mxUtils::getNumber($terminal->style, mxConstants::$STYLE_PERIMETER_SPACING);
}
return $terminal->getPerimeterBounds($border * $this->scale);
}
/**
* Function: drawLabel
*
* Draws the specified label using the canvas.
*/
function drawLabel($isEdge, $attrs)
{
$label = mxUtils::getValue($attrs, "label");
if (isset($label) && strlen($label) > 0) {
$offset = new mxPoint(mxUtils::getNumber($attrs, "dx"), mxUtils::getNumber($attrs, "dy"));
$vertexBounds = !$isEdge ? new mxRectangle(mxUtils::getNumber($attrs, "x"), mxUtils::getNumber($attrs, "y"), mxUtils::getNumber($attrs, "width"), mxUtils::getNumber($attrs, "height")) : null;
$bounds = mxUtils::getLabelPaintBounds($label, $attrs, mxUtils::getValue($attrs, "html", false), $offset, $vertexBounds, $this->scale);
$this->canvas->drawLabel($label, $bounds->x, $bounds->y, $bounds->width, $bounds->height, $attrs, false);
}
}
