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<?php
/*
Phoronix Test Suite
URLs: http://www.phoronix.com, http://www.phoronix-test-suite.com/
Copyright (C) 2008, Phoronix Media
Copyright (C) 2008, Michael Larabel
bilde_gd_renderer: An abstract class providing a GD library renderer that can then be extended by a PNG and JPEG renderer
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
abstract class bilde_gd_renderer extends bilde_renderer
{
public function __construct($width, $height, $embed_identifiers = "")
{
$this->image = $this->init_new_gd_image($width, $height);
$this->image_width = $width;
$this->image_height = $height;
}
/*
public function render_image($output_file = null, $quality = 0)
{
// To be implemented by the class extending bilde_gd_renderer
}
*/
public function resize_image($width, $height)
{
$img = $this->image;
$this->image = $this->init_new_gd_image($width, $height);
$this->image_width = $width;
$this->image_height = $height;
$this->image_copy_merge($img, 0, 0);
}
public function destroy_image()
{
imagedestroy($this->image);
}
public function write_text_left($text_string, $font_type, $font_size, $font_color, $bound_x1, $bound_y1, $bound_x2, $bound_y2, $rotate_text = false)
{
$text_dimensions = $this->text_string_dimensions($text_string, $font_type, $font_size);
$text_width = $text_dimensions[0];
$text_height = $text_dimensions[1];
if($rotate_text == false)
{
$text_x = $bound_x1;
$text_y = $bound_y1 + round($text_height / 2);
$rotation = 0;
}
else
{
$text_x = $bound_x1 - round($text_height / 4);
$text_y = $bound_y1 + round($text_height / 2);
$rotation = 270;
}
imagettftext($this->image, $font_size, $rotation, $text_x, $text_y, $font_color, $font_type, $text_string);
}
public function write_text_right($text_string, $font_type, $font_size, $font_color, $bound_x1, $bound_y1, $bound_x2, $bound_y2, $rotate_text = false)
{
$text_dimensions = $this->text_string_dimensions($text_string, $font_type, $font_size);
$text_width = $text_dimensions[0];
$text_height = $text_dimensions[1];
if($rotate_text == false)
{
$rotation = 0;
}
else
{
$rotation = 90;
}
$text_x = $bound_x2 - $text_width;
$text_y = $bound_y1 + round($text_height / 2);
imagettftext($this->image, $font_size, $rotation, $text_x, $text_y, $font_color, $font_type, $text_string);
}
public function write_text_center($text_string, $font_type, $font_size, $font_color, $bound_x1, $bound_y1, $bound_x2, $bound_y2, $rotate_text = false)
{
if($bound_x1 != $bound_x2)
{
while($this->text_string_width($this->trim_double($text_string, 2), $font_type, $font_size) > abs($bound_x2 - $bound_x1 - 3))
{
$font_size -= 0.5;
}
}
$text_dimensions = $this->text_string_dimensions(strtoupper($text_string), $font_type, $font_size);
$text_height = $text_dimensions[1];
$text_dimensions = $this->text_string_dimensions($text_string, $font_type, $font_size);
$text_width = $text_dimensions[0];
if($rotate_text == false)
{
$rotation = 0;
$text_x = (($bound_x2 - $bound_x1) / 2) + $bound_x1 - round($text_width / 2);
$text_y = $bound_y1 + $text_height;
}
else
{
$rotation = 90;
$text_x = $bound_x1 + $text_height;
$text_y = (($bound_y2 - $bound_y1) / 2) + $bound_y1 + round($text_width / 2);
}
imagettftext($this->image, $font_size, $rotation, $text_x, $text_y, $font_color, $font_type, $text_string);
}
public function draw_rectangle($x1, $y1, $width, $height, $background_color)
{
imagefilledrectangle($this->image, $x1, $y1, $width, $height, $background_color);
}
public function draw_rectangle_border($x1, $y1, $width, $height, $border_color)
{
imagerectangle($this->image, $x1, $y1, $width, $height, $border_color);
}
public function draw_polygon($points, $body_color, $border_color = null, $border_width = 0)
{
$num_points = floor(count($points) / 2);
imagefilledpolygon($this->image, $points, $num_points, $body_color);
if($border_width > 0 && !empty($border_color))
{
// TODO: implement $border_width
imagepolygon($this->image, $points, $num_points, $border_color);
}
}
public function draw_ellipse($center_x, $center_y, $width, $height, $body_color, $border_color = null, $border_width = 0)
{
imagefilledellipse($this->image, $center_x, $center_y, $width, $height, $body_color);
if($border_width > 0 && !empty($border_color))
{
// TODO: implement $border_width
imageellipse($this->image, $center_x, $center_y, $width, $height, $border_color);
}
}
public function draw_line($start_x, $start_y, $end_x, $end_y, $color, $line_width = 1)
{
for($i = 0; $i < $line_width; $i++)
{
if($start_x == $end_x)
{
imageline($this->image, $start_x + $i, $start_y, $end_x + $i, $end_y, $color);
}
else
{
imageline($this->image, $start_x, $start_y + $i, $end_x, $end_y + $i, $color);
}
}
}
public function png_image_to_type($file)
{
return imagecreatefrompng($file);
}
public function jpg_image_to_type($file)
{
return imagecreatefromjpeg($file);
}
public function image_copy_merge($source_image_object, $to_x, $to_y, $source_x = 0, $source_y = 0, $width = -1, $height = -1)
{
if($width == -1)
{
$width = imagesx($source_image_object);
}
if($height == -1)
{
$height = imagesy($source_image_object);
}
imagecopy($this->image, $source_image_object, $to_x, $to_y, $source_x, $source_y, $width, $height);
}
public function convert_hex_to_type($hex)
{
return imagecolorallocate($this->image, hexdec(substr($hex, 1, 2)), hexdec(substr($hex, 3, 2)), hexdec(substr($hex, 5, 2)));
}
public function text_string_dimensions($string, $font_type, $font_size, $predefined_string = false)
{
$box_array = imagettfbbox($font_size, 0, $font_type, $string);
$box_width = $box_array[4] - $box_array[6];
if($predefined_string)
{
$box_array = imagettfbbox($size, 0, $font, "AZ@![]()@|_");
}
$box_height = $box_array[1] - $box_array[7];
return array($box_width, $box_height);
}
// Privates / Protected
protected function init_new_gd_image($width, $height)
{
$img = imagecreate($width, $height);
imageinterlace($img, true);
if(function_exists("imageantialias"))
{
imageantialias($img, true);
}
return $img;
}
}
?>
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