Files
blockly/generators/php/colour.js
Christopher Allen eeb89194c4 refactor(generators): Introduce PhpGenerator class, Order enum (#7162)
* refactor(generators): Introduce PhpGenerator class, Order enum

* refactor(generators): Use Order.* instead of .ORDER_*

* refactor(generators): Don't rename phpGenerator
2023-06-14 09:09:52 -07:00

84 lines
2.9 KiB
JavaScript

/**
* @license
* Copyright 2015 Google LLC
* SPDX-License-Identifier: Apache-2.0
*/
/**
* @fileoverview Generating PHP for colour blocks.
*/
import * as goog from '../../closure/goog/goog.js';
goog.declareModuleId('Blockly.PHP.colour');
import {phpGenerator, Order} from '../php.js';
phpGenerator.forBlock['colour_picker'] = function(block) {
// Colour picker.
const code = phpGenerator.quote_(block.getFieldValue('COLOUR'));
return [code, Order.ATOMIC];
};
phpGenerator.forBlock['colour_random'] = function(block) {
// Generate a random colour.
const functionName = phpGenerator.provideFunction_('colour_random', `
function ${phpGenerator.FUNCTION_NAME_PLACEHOLDER_}() {
return '#' . str_pad(dechex(mt_rand(0, 0xFFFFFF)), 6, '0', STR_PAD_LEFT);
}
`);
const code = functionName + '()';
return [code, Order.FUNCTION_CALL];
};
phpGenerator.forBlock['colour_rgb'] = function(block) {
// Compose a colour from RGB components expressed as percentages.
const red = phpGenerator.valueToCode(block, 'RED', Order.NONE) || 0;
const green = phpGenerator.valueToCode(block, 'GREEN', Order.NONE) || 0;
const blue = phpGenerator.valueToCode(block, 'BLUE', Order.NONE) || 0;
const functionName = phpGenerator.provideFunction_('colour_rgb', `
function ${phpGenerator.FUNCTION_NAME_PLACEHOLDER_}($r, $g, $b) {
$r = round(max(min($r, 100), 0) * 2.55);
$g = round(max(min($g, 100), 0) * 2.55);
$b = round(max(min($b, 100), 0) * 2.55);
$hex = '#';
$hex .= str_pad(dechex($r), 2, '0', STR_PAD_LEFT);
$hex .= str_pad(dechex($g), 2, '0', STR_PAD_LEFT);
$hex .= str_pad(dechex($b), 2, '0', STR_PAD_LEFT);
return $hex;
}
`);
const code = functionName + '(' + red + ', ' + green + ', ' + blue + ')';
return [code, Order.FUNCTION_CALL];
};
phpGenerator.forBlock['colour_blend'] = function(block) {
// Blend two colours together.
const c1 =
phpGenerator.valueToCode(block, 'COLOUR1', Order.NONE) || "'#000000'";
const c2 =
phpGenerator.valueToCode(block, 'COLOUR2', Order.NONE) || "'#000000'";
const ratio = phpGenerator.valueToCode(block, 'RATIO', Order.NONE) || 0.5;
const functionName = phpGenerator.provideFunction_('colour_blend', `
function ${phpGenerator.FUNCTION_NAME_PLACEHOLDER_}($c1, $c2, $ratio) {
$ratio = max(min($ratio, 1), 0);
$r1 = hexdec(substr($c1, 1, 2));
$g1 = hexdec(substr($c1, 3, 2));
$b1 = hexdec(substr($c1, 5, 2));
$r2 = hexdec(substr($c2, 1, 2));
$g2 = hexdec(substr($c2, 3, 2));
$b2 = hexdec(substr($c2, 5, 2));
$r = round($r1 * (1 - $ratio) + $r2 * $ratio);
$g = round($g1 * (1 - $ratio) + $g2 * $ratio);
$b = round($b1 * (1 - $ratio) + $b2 * $ratio);
$hex = '#';
$hex .= str_pad(dechex($r), 2, '0', STR_PAD_LEFT);
$hex .= str_pad(dechex($g), 2, '0', STR_PAD_LEFT);
$hex .= str_pad(dechex($b), 2, '0', STR_PAD_LEFT);
return $hex;
}
`);
const code = functionName + '(' + c1 + ', ' + c2 + ', ' + ratio + ')';
return [code, Order.FUNCTION_CALL];
};