80 lines
2.5 KiB
Java
80 lines
2.5 KiB
Java
/*
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* Copyright (c) 2018, 7u83 <7u83@mail.ru>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* * Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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package opensesim.gui.util;
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import javax.swing.JTextField;
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import javax.swing.text.AttributeSet;
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import javax.swing.text.BadLocationException;
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import javax.swing.text.PlainDocument;
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/**
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*
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* @author 7u83 <7u83@mail.ru>
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*/
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public class JTextFieldLimit extends JTextField {
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/* JTextFieldLimit() {
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super();
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this.setDocument(new PlainDocumentLimit());
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setLimit(0);
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}
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*/
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private int limit;
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public final void setLimit(int limit){
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this.limit = limit;
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String text = getText();
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setDocument(new PlainDocumentLimit());
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setText(text);
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}
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public final int getLimit(){
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return limit;
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}
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class PlainDocumentLimit extends PlainDocument {
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//private int limit;
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PlainDocumentLimit() {
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super();
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}
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@Override
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public void insertString(int offset, String str, AttributeSet attr) throws BadLocationException {
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if (str == null) {
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return;
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}
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if ((getLength() + str.length()) <= limit || limit==0) {
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super.insertString(offset, str, attr);
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}
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}
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}
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}
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