00001 /* 00002 * Copyright (c) 2011, 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 <QPainter> 00031 #include <QStyleOptionViewItem> 00032 #include <QComboBox> 00033 00034 #include "rviz/properties/enum_item.h" 00035 #include "rviz/properties/property.h" 00036 #include "rviz/properties/property_tree_widget.h" 00037 00038 namespace rviz 00039 { 00040 00041 EnumItem::EnumItem( EnumProperty* property ) 00042 : PropertyWidgetItem( property, property->getName(), property->hasSetter() ) 00043 , choice_value_( -93993328 ) // some very unlikely value 00044 , signal_changes_( true ) 00045 { 00046 } 00047 00048 QWidget* EnumItem::createEditor( QWidget* parent, const QStyleOptionViewItem & option ) 00049 { 00050 QComboBox* editor = new QComboBox( parent ); 00051 editor->setFrame( false ); 00052 QObject::connect( editor, SIGNAL( currentIndexChanged( int )), this, SLOT( setChoiceIndex( int ))); 00053 return editor; 00054 } 00055 00056 bool EnumItem::setEditorData( QWidget* editor ) 00057 { 00058 if( QComboBox* enum_editor = qobject_cast<QComboBox*>( editor )) 00059 { 00060 signal_changes_ = false; 00061 enum_editor->clear(); 00062 int index = 0; 00063 int chosen_index = -1; 00064 for( Choices::iterator ci = choices_.begin(); ci != choices_.end(); ci++ ) 00065 { 00066 enum_editor->addItem( QString::fromStdString( (*ci).first ), (*ci).second ); 00067 if( (*ci).second == choice_value_ ) 00068 { 00069 chosen_index = index; 00070 } 00071 index++; 00072 } 00073 enum_editor->setCurrentIndex( chosen_index ); 00074 signal_changes_ = true; 00075 return true; 00076 } 00077 return false; 00078 } 00079 00080 bool EnumItem::setModelData( QWidget* editor ) 00081 { 00082 if( QComboBox* enum_editor = qobject_cast<QComboBox*>( editor )) 00083 { 00084 setChoiceIndex( enum_editor->currentIndex() ); 00085 return true; 00086 } 00087 return false; 00088 } 00089 00090 void EnumItem::setChoiceIndex( int index ) 00091 { 00092 if( signal_changes_ && index >= 0 && index < (int) choices_.size() ) 00093 { 00094 int new_choice = choices_[ index ].second; 00095 if( new_choice != choice_value_ ) 00096 { 00097 setChoiceValue( new_choice ); 00098 emitDataChanged(); 00099 } 00100 } 00101 } 00102 00103 std::string EnumItem::currentChoiceName() 00104 { 00105 for( Choices::iterator ci = choices_.begin(); ci != choices_.end(); ci++ ) 00106 { 00107 if( (*ci).second == choice_value_ ) 00108 { 00109 return (*ci).first; 00110 } 00111 } 00112 return ""; 00113 } 00114 00115 void EnumItem::setChoices( Choices choices ) 00116 { 00117 if( choices_ != choices ) 00118 { 00119 choices_ = choices; 00120 setRightText( currentChoiceName() ); 00121 } 00122 } 00123 00124 void EnumItem::setChoiceValue( int choice_value ) 00125 { 00126 if( choice_value_ != choice_value ) 00127 { 00128 choice_value_ = choice_value; 00129 setRightText( currentChoiceName() ); 00130 } 00131 } 00132 00133 } // end namespace rviz