public function draw(awDriver $driver)
{
if ($this->hide) {
return;
}
$count = $this->count();
// No legend to print
if ($count === 0) {
return;
}
// Get text widths and heights of each element of the legend
$widths = array();
$heights = array();
$texts = array();
for ($i = 0; $i < $count; $i++) {
list(, $title, ) = $this->legends[$i];
$text = new awText($title, $this->textFont, $this->textColor, 0);
// $font = $text->getFont();
$widths[$i] = $driver->getTextWidth($text) + $this->textMargin->left + $this->textMargin->right;
$heights[$i] = $driver->getTextHeight($text);
$texts[$i] = $text;
}
// Maximum height of the font used
$heightMax = array_max($heights);
// Get number of columns
if ($this->columns !== NULL) {
$columns = $this->columns;
} else {
if ($this->rows !== NULL) {
$columns = ceil($count / $this->rows);
} else {
$columns = $count;
}
}
// Number of rows
$rows = (int) ceil($count / $columns);
// Get maximum with of each column
$widthMax = array();
for ($i = 0; $i < $count; $i++) {
// Get column width
$column = $i % $columns;
if (array_key_exists($column, $widthMax) === FALSE) {
$widthMax[$column] = $widths[$i];
} else {
$widthMax[$column] = max($widthMax[$column], $widths[$i]);
}
}
$width = $this->padding[0] + $this->padding[1] - $this->space;
for ($i = 0; $i < $columns; $i++) {
$width += $this->space + 5 + 10 + $widthMax[$i];
}
$height = ($heightMax + $this->space) * $rows - $this->space + $this->padding[2] + $this->padding[3];
// Look for legends position
list($x, $y) = $driver->getSize();
$p = new awPoint($this->position->x * $x, $this->position->y * $y);
switch ($this->hAlign) {
case awLegend::CENTER:
$p->x -= $width / 2;
break;
case awLegend::RIGHT:
$p->x -= $width;
break;
}
switch ($this->vAlign) {
case awLegend::MIDDLE:
$p->y -= $height / 2;
break;
case awLegend::BOTTOM:
$p->y -= $height;
break;
}
// Draw legend shadow
$this->shadow->draw($driver, $p, $p->move($width, $height), awShadow::OUT);
// Draw legends base
$this->drawBase($driver, $p, $width, $height);
// Draw each legend
for ($i = 0; $i < $count; $i++) {
list($component, $title, $type) = $this->legends[$i];
$column = $i % $columns;
$row = (int) floor($i / $columns);
// Get width of all previous columns
$previousColumns = 0;
for ($j = 0; $j < $column; $j++) {
$previousColumns += $this->space + 10 + 5 + $widthMax[$j];
}
// Draw legend text
$driver->string($texts[$i], $p->move($this->padding[0] + $previousColumns + 10 + 5 + $this->textMargin->left, $this->padding[2] + $row * ($heightMax + $this->space) + $heightMax / 2 - $heights[$i] / 2));
// Draw legend icon
switch ($type) {
case awLegend::LINE:
case awLegend::MARK:
case awLegend::MARKONLY:
// Get vertical position
$x = $this->padding[0] + $previousColumns;
$y = $this->padding[2] + $row * ($heightMax + $this->space) + $heightMax / 2 - $component->getLegendLineThickness();
// Draw two lines
if ($component->getLegendLineColor() !== NULL) {
$color = $component->getLegendLineColor();
if ($color instanceof awColor and $type !== awLegend::MARKONLY) {
$driver->line($color, new awLine($p->move($x, $y + $component->getLegendLineThickness() / 2), $p->move($x + 10, $y + $component->getLegendLineThickness() / 2), $component->getLegendLineStyle(), $component->getLegendLineThickness()));
unset($color);
}
}
if ($type === awLegend::MARK or $type === awLegend::MARKONLY) {
$mark = $component->getLegendMark();
if ($mark !== NULL) {
$mark->draw($driver, $p->move($x + 5.5, $y + $component->getLegendLineThickness() / 2));
}
unset($mark);
}
break;
case awLegend::BACKGROUND:
// Get vertical position
$x = $this->padding[0] + $previousColumns;
$y = $this->padding[2] + $row * ($heightMax + $this->space) + $heightMax / 2 - 5;
$from = $p->move($x, $y);
$to = $p->move($x + 10, $y + 10);
$background = $component->getLegendBackground();
if ($background !== NULL) {
$driver->filledRectangle($component->getLegendBackground(), new awLine($from, $to));
// Draw rectangle border
$this->border->rectangle($driver, $from->move(0, 0), $to->move(0, 0));
}
unset($background, $from, $to);
break;
}
}
}
