float_edit.cpp
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00001 /*
00002  * Copyright (c) 2012, Willow Garage, Inc.
00003  * All rights reserved.
00004  *
00005  * Redistribution and use in source and binary forms, with or without
00006  * modification, are permitted provided that the following conditions are met:
00007  *
00008  *     * Redistributions of source code must retain the above copyright
00009  *       notice, this list of conditions and the following disclaimer.
00010  *     * Redistributions in binary form must reproduce the above copyright
00011  *       notice, this list of conditions and the following disclaimer in the
00012  *       documentation and/or other materials provided with the distribution.
00013  *     * Neither the name of the Willow Garage, Inc. nor the names of its
00014  *       contributors may be used to endorse or promote products derived from
00015  *       this software without specific prior written permission.
00016  *
00017  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
00018  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
00019  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
00020  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
00021  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
00022  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
00023  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
00024  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
00025  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
00026  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
00027  * POSSIBILITY OF SUCH DAMAGE.
00028  */
00029 
00030 #include <QDoubleValidator>
00031 
00032 #include "rviz/properties/float_edit.h"
00033 
00034 namespace rviz
00035 {
00036 
00037 FloatEdit::FloatEdit( QWidget* parent )
00038   : QLineEdit( parent )
00039 {
00040   setFrame( false );
00041   setValidator( new QDoubleValidator( this ));
00042   connect( this, SIGNAL( textEdited( const QString& )), this, SLOT( updateValue() ));
00043 }
00044 
00045 void FloatEdit::setValue( float new_value )
00046 {
00047   if( value_ != new_value )
00048   {
00049     value_ = new_value;
00050     bool ok = true;
00051     float existing_text_value = text().toFloat( &ok );
00052     if( !ok || existing_text_value != new_value )
00053     {
00054       setText( QString::number( (double) value_ ));
00055     }
00056   }
00057 }
00058 
00059 void FloatEdit::updateValue()
00060 {
00061   if( hasAcceptableInput() )
00062   {
00063     bool ok = true;
00064     float new_value = text().toFloat( &ok );
00065     if( ok )
00066     {
00067       setValue( new_value );
00068     }
00069   }
00070 }
00071 
00072 } // end namespace rviz


rviz
Author(s): Dave Hershberger, David Gossow, Josh Faust
autogenerated on Thu Aug 27 2015 15:02:27