protected function drawLabels($drawer) {
if($this->labelNumber !== NULL) {
list($min, $max) = $this->range;
$number = $this->labelNumber - 1;
if($number < 1) {
return;
}
$function = $this->rangeCallback['toValue'];
$labels = array();
for($i = 0; $i <= $number; $i++) {
$labels[] = $function($i / $number, $min, $max);
}
$this->label->set($labels);
}
$labels = $this->label->count();
for($i = 0; $i < $labels; $i++) {
$p = $this->getPointFromValue($this->label->get($i));
$this->label->draw($drawer, $p, $i);
}
}
public function drawComponent(awDrawer $drawer, $x1, $y1, $x2, $y2, $aliasing)
{
$count = count($this->values);
$sum = array_sum($this->values);
$width = $x2 - $x1;
$height = $y2 - $y1;
if ($aliasing) {
$x = $width / 2;
$y = $height / 2;
} else {
$x = $width / 2 + $x1;
$y = $height / 2 + $y1;
}
$position = $this->angle;
$values = array();
$parts = array();
$angles = 0;
if ($aliasing) {
$side = new awSide(0, 0, 0, 0);
}
foreach ($this->values as $key => $value) {
$angle = $value / $sum * 360;
if ($key === $count - 1) {
$angle = 360 - $angles;
}
$angles += $angle;
if (array_key_exists($key, $this->explode)) {
$middle = 360 - ($position + $angle / 2);
$posX = $this->explode[$key] * cos($middle * M_PI / 180);
$posY = $this->explode[$key] * sin($middle * M_PI / 180) * -1;
if ($aliasing) {
$explode = new awPoint($posX * 2, $posY * 2);
$side->set(max($side->left, $posX * -2), max($side->right, $posX * 2), max($side->top, $posY * -2), max($side->bottom, $posY * 2));
} else {
$explode = new awPoint($posX, $posY);
}
} else {
$explode = new awPoint(0, 0);
}
$values[$key] = array($position, $position + $angle, $explode);
$color = $this->colors[$key % count($this->colors)];
$parts[$key] = new awPiePart($color);
// Add part to the legend
$legend = array_key_exists($key, $this->legendValues) ? $this->legendValues[$key] : $key;
$this->legend->add($parts[$key], $legend, awLegend::BACKGROUND);
$position += $angle;
}
if ($aliasing) {
$mainDrawer = $drawer;
$x *= 2;
$y *= 2;
$width *= 2;
$height *= 2;
$this->size *= 2;
$image = new awImage();
$image->border->hide();
$image->setSize($width + $side->left + $side->right, $height + $side->top + $side->bottom + $this->size + 1);
$drawer = $image->getDrawer($width / $image->width, $height / $image->height, ($width / 2 + $side->left) / $image->width, ($height / 2 + $side->top) / $image->height);
}
// Draw 3D effect
for ($i = $this->size; $i > 0; $i--) {
foreach ($values as $key => $value) {
$color = clone $this->colors[$key % count($this->colors)];
$color->brightness(-50);
list($from, $to, $explode) = $value;
$drawer->filledArc($color, $explode->move($x, $y + $i), $width, $height, $from, $to);
$color->free();
unset($color);
if ($this->border instanceof awColor) {
$point = $explode->move($x, $y);
if ($i === $this->size) {
$drawer->arc($this->border, $point->move(0, $this->size), $width, $height, $from, $to);
}
}
}
}
foreach ($values as $key => $value) {
$color = $this->colors[$key % count($this->colors)];
list($from, $to, $explode) = $value;
$drawer->filledArc($color, $explode->move($x, $y), $width, $height, $from, $to);
if ($this->border instanceof awColor) {
$point = $explode->move($x, $y);
$drawer->arc($this->border, $point, $width, $height, $from, $to);
}
}
if ($aliasing) {
$x = $x / 2 + $x1;
$y = $y / 2 + $y1;
$width /= 2;
$height /= 2;
$this->size /= 2;
foreach ($values as $key => $value) {
$old = $values[$key][2];
$values[$key][2] = new awPoint($old->x / 2, $old->y / 2);
}
$mainDrawer->copyResizeImage($image, new awPoint($x1 - $side->left / 2, $y1 - $side->top / 2), new awPoint($x1 - $side->left / 2 + $image->width / 2, $y1 - $side->top / 2 + $image->height / 2), new awPoint(0, 0), new awPoint($image->width, $image->height), TRUE);
$drawer = $mainDrawer;
}
// Get labels values
$pc = array();
foreach ($this->values as $key => $value) {
$pc[$key] = round($value / $sum * 100, $this->precision);
}
if ($this->label->count() === 0) {
// Check that there is no user defined values
$this->label->set($pc);
}
$position = 0;
foreach ($pc as $key => $value) {
// Limit number of labels to display
if ($position === $this->number) {
break;
}
if (is_null($this->minimum) === FALSE and $value < $this->minimum) {
continue;
}
$position++;
list($from, $to, $explode) = $values[$key];
$angle = $from + ($to - $from) / 2;
$angleRad = (360 - $angle) * M_PI / 180;
$point = new awPoint($x + $explode->x + cos($angleRad) * ($width / 2 + $this->position), $y + $explode->y - sin($angleRad) * ($height / 2 + $this->position));
$angle %= 360;
// We don't display labels on the 3D effect
if ($angle > 0 and $angle < 180) {
$point = $point->move(0, -1 * sin($angleRad) * $this->size);
}
if ($angle >= 45 and $angle < 135) {
$this->label->setAlign(awLabel::CENTER, awLabel::BOTTOM);
} else {
if ($angle >= 135 and $angle < 225) {
$this->label->setAlign(awLabel::RIGHT, awLabel::MIDDLE);
} else {
if ($angle >= 225 and $angle < 315) {
$this->label->setAlign(awLabel::CENTER, awLabel::TOP);
} else {
$this->label->setAlign(awLabel::LEFT, awLabel::MIDDLE);
}
}
}
$this->label->draw($drawer, $point, $key);
}
}