/**
* Create a new Sparkline instance.
*/
public function __construct()
{
/* Initial size doesn't matter, the images resize themselves anyway */
parent::__construct(1, 1);
/* Default parameter values */
$this->_seed(array('image-border-top' => 0, 'image-border-right' => 0, 'image-border-bottom' => 0, 'image-border-left' => 0, 'value-scale' => 1, 'draw-zero-axis' => true, 'draw-highlight-max' => false, 'draw-highlight-min' => false, 'background-color' => $this->color_from_string('#fff'), 'zero-axis-color' => $this->color_from_string('#d3d7cf'), 'debug-resize-factor' => 1));
}
/** Test drawing functions */
static function draw_lines_and_shapes()
{
$img = new AnewtImage(40, 40);
$img->fill($img->color_from_rgb(83, 17, 43));
$ctx1 = $img->create_drawing_context();
$ctx2 = $img->create_drawing_context();
/* First context */
$ctx1->set('color', $img->color_from_string('#ff0'));
$ctx1->draw_line(18, 18, 21, 18);
$ctx1->set('color', $img->color_from_rgb(203, 143, 107));
$ctx1->draw_string(0, 26, 'Anewt');
/* Other context */
$ctx2->set('color', $img->color_from_string('#933'));
$ctx2->set('line-width', 5);
$ctx2->draw_line(23, 23, 27, 27);
$ctx2->draw_point(2, 20);
$ctx2->draw_point(2, 22);
$ctx2->draw_point(2, 24);
/* Back to first context */
$ctx1->draw_line(13, 13, 8, 17);
$ctx1->draw_filled_rectangle_size(2, 2, 6, 6);
$ctx1->set('color', $img->color_from_string('#3c3'));
$ctx1->draw_filled_rectangle_size(3, 3, 4, 3);
$ctx1->set('color', $img->color_from_string('#969'));
$ctx1->draw_rectangle(3, 3, 6, 7);
$ctx1->draw_filled_rectangle_size(15, 2, 2, 2);
$ctx1->draw_filled_rectangle_size(15, 2, -1, -1);
$col = $img->color_from_string('#36c');
$ctx1->set('color', $col);
$ctx1->draw_filled_rectangle(20, 2, 18, 3);
assert('$ctx1->color_at(19, 2) == $col');
/* Blow up so we can count the pixels in the result */
$img->resize_relative(10, false);
$img->flush_png();
$img->destroy();
}
/**
* Flush the output to the browser. The 'filename' property is inspected to
* see what file type to use, e.g. PNG or JPEG.
*
* \see AnewtImage::flush_png
* \see AnewtImage::flush_jpeg
* \see AnewtImage::save
*/
public function flush()
{
assert('$this->is_set("filename")');
$filename = $this->get('filename');
if (AnewtImage::_filename_looks_like_png($filename)) {
$this->flush_png($filename);
} elseif (AnewtImage::_filename_looks_like_jpeg($filename)) {
$this->flush_jpeg($this->get('quality'));
} else {
trigger_error(sprintf('AnewtImage::save(): Cannot flush image, filename "%s" does not have a supported extension', $filename), E_USER_ERROR);
}
}
