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