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* @license Apache-2.0
*
* Copyright (c) 2018 The Stdlib Authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
'use strict';
// MODULES //
var logger = require( 'debug' );
var xAxisTransform = require( './utils/x_axis_transform.js' );
var yAxisTransform = require( './utils/y_axis_transform.js' );
var renderMarks = require( './marks' );
var init = require( './init.js' );
var sync = require( './sync.js' );
// VARIABLES //
var debug = logger( 'plot:render:svg:main' );
// MAIN //
/**
* Renders a virtual DOM tree.
*
* @private
* @param {Object} state - state
* @returns {VTree} virtual tree
*/
function render( state ) {
var annotations;
var clipPath;
var canvas;
var title;
var graph;
var marks;
var xAxis;
var yAxis;
var bkgd;
var defs;
var svg;
svg = state.$.svg;
// Lazily initialize...
if ( !svg.canvas ) {
debug( 'Initializing components...' );
init( state );
}
debug( 'Syncing component states...' );
sync( state );
debug( 'Rendering individual components...' );
debug( 'Rendering annotations...' );
annotations = svg.annotations.render();
debug( 'Rendering clip-path...' );
clipPath = svg.clipPath.render();
debug( 'Rendering canvas...' );
canvas = svg.canvas.render();
debug( 'Rendering graph...' );
graph = svg.graph.render();
debug( 'Rendering title...' );
title = svg.title.render();
debug( 'Rendering x-axis...' );
xAxis = svg.xAxis.render();
debug( 'Rendering y-axis...' );
yAxis = svg.yAxis.render();
debug( 'Rendering background...' );
bkgd = svg.bkgd.render();
debug( 'Rendering definitions...' );
defs = svg.defs.render();
debug( 'Rendering marks...' );
marks = renderMarks( state );
debug( 'Updating rendered components...' );
debug( 'Updating title...' );
title.properties.attributes.x = state.paddingLeft + ( state.graphWidth/2 );
title.properties.attributes.y = state.paddingTop / 2;
debug( 'Updating x-axis...' );
xAxis.properties.className += ' x';
xAxis.properties.attributes.transform = xAxisTransform( state.xAxisOrient, state.graphHeight ); // eslint-disable-line max-len
debug( 'Updating y-axis...' );
yAxis.properties.className += ' y';
yAxis.properties.attributes.transform = yAxisTransform( state.yAxisOrient, state.graphWidth ); // eslint-disable-line max-len
debug( 'Assembling virtual tree...' );
debug( 'Inserting clip-path into definitions...' );
defs.children.push( clipPath );
defs.count += clipPath.count;
debug( 'Inserting background into graph...' );
graph.children.push( bkgd );
graph.count += bkgd.count;
debug( 'Inserting marks into graph...' );
graph.children.push( marks );
graph.count += marks.count;
debug( 'Inserting x-axis into graph...' );
graph.children.push( xAxis );
graph.count += xAxis.count;
debug( 'Inserting y-axis into graph...' );
graph.children.push( yAxis );
graph.count += yAxis.count;
debug( 'Inserting title into annotations...' );
annotations.children.push( title );
annotations.count += title.count;
debug( 'Inserting definitions into canvas...' );
canvas.children.push( defs );
canvas.count += defs.count;
debug( 'Inserting graph into canvas...' );
canvas.children.push( graph );
canvas.count += graph.count;
debug( 'Inserting annotations into canvas...' );
canvas.children.push( annotations );
canvas.count += annotations.count;
return canvas;
}
// EXPORTS //
module.exports = render;
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