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83 lines
2.5 KiB
JavaScript
83 lines
2.5 KiB
JavaScript
/**
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* @license
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* Visual Blocks Editor
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*
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* Copyright 2019 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 An object that provides constants for rendering blocks in Zelos
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* mode.
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* @author fenichel@google.com (Rachel Fenichel)
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*/
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'use strict';
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goog.provide('Blockly.zelos.ConstantProvider');
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goog.require('Blockly.blockRendering.ConstantProvider');
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goog.require('Blockly.utils.svgPaths');
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/**
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* An object that provides constants for rendering blocks in Zelos mode.
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* @constructor
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* @package
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* @extends {Blockly.blockRendering.ConstantProvider}
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*/
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Blockly.zelos.ConstantProvider = function() {
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Blockly.zelos.ConstantProvider.superClass_.constructor.call(this);
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};
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goog.inherits(Blockly.zelos.ConstantProvider,
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Blockly.blockRendering.ConstantProvider);
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/**
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* @override
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*/
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Blockly.zelos.ConstantProvider.prototype.makePuzzleTab = function() {
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// Example replacement of one connection shape with another.
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// Eventually this will be replaced by a lookup based on connection type.
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// For now this just makes Zelos visibly different from Thrasos.
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return this.makeTriangle();
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};
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/**
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* @return {!Object} An object containing sizing and path information about
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* a triangle shape for connections.
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* @package
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*/
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Blockly.zelos.ConstantProvider.prototype.makeTriangle = function() {
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var width = 20;
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var height = 20;
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// The 'up' and 'down' versions of the paths are the same, but the Y sign
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// flips. Forward and back are the signs to use to move the cursor in the
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// direction that the path is being drawn.
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function makeMainPath(up) {
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var forward = up ? -1 : 1;
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return Blockly.utils.svgPaths.lineTo(-width, forward * height / 2) +
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Blockly.utils.svgPaths.lineTo(width, forward * height / 2);
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}
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var pathUp = makeMainPath(true);
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var pathDown = makeMainPath(false);
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return {
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width: width,
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height: height,
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pathDown: pathDown,
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pathUp: pathUp
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};
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};
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