DifferentialPrimaryPaneView.php
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	<?php

	/*
	* Copyright 2012 Facebook, Inc.
	*
	* 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.
	*/

	final class DifferentialPrimaryPaneView
	extends DifferentialCodeWidthSensitiveView {

	private $id;

	public function setID($id) {
	$this->id = $id;
	return $this;
	}

	public function render() {

	// This is chosen somewhat arbitrarily so the math works out correctly
	// for 80 columns and sets it to the preexisting width (1162px). It may
	// need some tweaking, but when lineWidth = 80, the computed pixel width
	// should be 1162px or something along those lines.

	// Override the 'td' width rule with a more specific, inline style tag.
	// TODO: move this to <head> somehow.
	$td_width = ceil((88 / 80) * $this->getLineWidth());
	$style_tag = phutil_render_tag(
	'style',
	array(
	'type' => 'text/css',
	),
	".differential-diff td { width: {$td_width}ex; }");

	return phutil_render_tag(
	'div',
	array(
	'class' => 'differential-primary-pane',
	'id' => $this->id,
	),
	$style_tag.$this->renderChildren());
	}

	}