/*
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This file is part of Ext JS 4.2
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Copyright (c) 2011-2013 Sencha Inc
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Contact: http://www.sencha.com/contact
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GNU General Public License Usage
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This file may be used under the terms of the GNU General Public License version 3.0 as
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published by the Free Software Foundation and appearing in the file LICENSE included in the
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packaging of this file.
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Please review the following information to ensure the GNU General Public License version 3.0
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requirements will be met: http://www.gnu.org/copyleft/gpl.html.
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If you are unsure which license is appropriate for your use, please contact the sales department
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at http://www.sencha.com/contact.
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Build date: 2013-05-16 14:36:50 (f9be68accb407158ba2b1be2c226a6ce1f649314)
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*/
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/**
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* Layout class for {@link Ext.form.field.ComboBox} fields. Handles sizing the input field.
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* @private
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*/
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Ext.define('Ext.layout.component.field.ComboBox', {
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extend: 'Ext.layout.component.field.Trigger',
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alias: 'layout.combobox',
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requires: ['Ext.util.TextMetrics'],
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type: 'combobox',
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startingWidth: null,
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getTextWidth: function () {
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var me = this,
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owner = me.owner,
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store = owner.store,
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field = owner.displayField,
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storeLn = store.data.length,
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value = '',
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i = 0, n = 0, ln, item, width;
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for (; i < storeLn; i++) {
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item = store.getAt(i).data[field];
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ln = item.length;
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// compare the current item's length with the current longest length and store the value
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if (ln > n) {
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n = ln;
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value = item;
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}
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}
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width = Math.max(me.callParent(arguments), owner.inputEl.getTextWidth(value + owner.growAppend));
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// it's important to know the starting width else the inputEl could be resized smaller than the boundlist
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// NOTE that when removing items from the store that the startingWidth needs to be recalculated
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if (!me.startingWidth || owner.removingRecords) {
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me.startingWidth = width;
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// also, if the width is less than growMin reset the default boundlist width
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// or it will appear wider than the component if the trigger is clicked
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if (width < owner.growMin) {
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owner.defaultListConfig.minWidth = owner.growMin;
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}
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owner.removingRecords = false;
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}
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// only resize if the new width is greater than the starting width
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return (width < me.startingWidth) ? me.startingWidth : width;
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}
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});
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