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102 lines
3.7 KiB
JavaScript
102 lines
3.7 KiB
JavaScript
/**
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* @license
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* Visual Blocks Language
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*
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* Copyright 2012 Google Inc.
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* https://developers.google.com/blockly/
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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/**
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* @fileoverview Generating PHP for colour blocks.
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* @author daarond@gmail.com (Daaron Dwyer)
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*/
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'use strict';
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goog.provide('Blockly.PHP.colour');
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goog.require('Blockly.PHP');
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Blockly.PHP['colour_picker'] = function(block) {
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// Colour picker.
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var code = '\'' + block.getFieldValue('COLOUR') + '\'';
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return [code, Blockly.PHP.ORDER_ATOMIC];
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};
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Blockly.PHP['colour_random'] = function(block) {
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// Generate a random colour.
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var functionName = Blockly.PHP.provideFunction_(
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'colour_random',
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[ 'function ' + Blockly.PHP.FUNCTION_NAME_PLACEHOLDER_ + '() {',
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' return \'#\' . str_pad(dechex(mt_rand(0, 0xFFFFFF)), 6, \'0\', STR_PAD_LEFT);',
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'}']);
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var code = functionName + '()';
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return [code, Blockly.PHP.ORDER_FUNCTION_CALL];
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};
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Blockly.PHP['colour_rgb'] = function(block) {
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// Compose a colour from RGB components expressed as percentages.
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var red = Blockly.PHP.valueToCode(block, 'RED',
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Blockly.PHP.ORDER_COMMA) || 0;
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var green = Blockly.PHP.valueToCode(block, 'GREEN',
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Blockly.PHP.ORDER_COMMA) || 0;
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var blue = Blockly.PHP.valueToCode(block, 'BLUE',
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Blockly.PHP.ORDER_COMMA) || 0;
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var functionName = Blockly.PHP.provideFunction_(
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'colour_rgb',
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[ 'function ' + Blockly.PHP.FUNCTION_NAME_PLACEHOLDER_ +
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'($r, $g, $b) {',
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' $hex = "#";',
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' $hex .= str_pad(dechex($r), 2, "0", STR_PAD_LEFT);',
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' $hex .= str_pad(dechex($g), 2, "0", STR_PAD_LEFT);',
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' $hex .= str_pad(dechex($b), 2, "0", STR_PAD_LEFT);',
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' return $hex;',
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'}']);
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var code = functionName + '($' + red + ', $' + green + ', $' + blue + ')';
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return [code, Blockly.PHP.ORDER_FUNCTION_CALL];
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};
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Blockly.PHP['colour_blend'] = function(block) {
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// Blend two colours together.
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var c1 = Blockly.PHP.valueToCode(block, 'COLOUR1',
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Blockly.PHP.ORDER_COMMA) || '\'#000000\'';
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var c2 = Blockly.PHP.valueToCode(block, 'COLOUR2',
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Blockly.PHP.ORDER_COMMA) || '\'#000000\'';
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var ratio = Blockly.PHP.valueToCode(block, 'RATIO',
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Blockly.PHP.ORDER_COMMA) || 0.5;
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var functionName = Blockly.PHP.provideFunction_(
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'colour_blend',
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[ 'function ' + Blockly.PHP.FUNCTION_NAME_PLACEHOLDER_ +
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'($c1, $c2, $ratio) {',
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' $ratio = max(min($ratio, 1), 0);',
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' $r1 = hexdec(substr($c1,0,2));',
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' $g1 = hexdec(substr($c1,2,2));',
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' $b1 = hexdec(substr($c1,4,2));',
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' $r2 = hexdec(substr($c2,0,2));',
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' $g2 = hexdec(substr($c2,2,2));',
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' $b2 = hexdec(substr($c2,4,2));',
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' $r = round($r1 * (1 - $ratio) + $r2 * $ratio);',
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' $g = round($g1 * (1 - $ratio) + $g2 * $ratio);',
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' $b = round($b1 * (1 - $ratio) + $b2 * $ratio);',
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' $hex = "#";',
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' $hex .= str_pad(dechex($r), 2, "0", STR_PAD_LEFT);',
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' $hex .= str_pad(dechex($g), 2, "0", STR_PAD_LEFT);',
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' $hex .= str_pad(dechex($b), 2, "0", STR_PAD_LEFT);',
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' return $hex;',
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'}']);
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var code = functionName + '($' + c1 + ', $' + c2 + ', $' + ratio + ')';
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return [code, Blockly.PHP.ORDER_FUNCTION_CALL];
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};
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