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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 <stdio.h> 00031 00032 #include <QPainter> 00033 #include <QColorDialog> 00034 00035 #include "rviz/properties/color_editor.h" 00036 00037 namespace rviz 00038 { 00039 00040 ColorEditor::ColorEditor( QWidget* parent ) 00041 : LineEditWithButton( parent ) 00042 { 00043 connect( this, SIGNAL( textEdited( const QString& )), 00044 this, SLOT( invalidateParse() )); 00045 } 00046 00047 void ColorEditor::paintEvent( QPaintEvent* event ) 00048 { 00049 LineEditWithButton::paintEvent( event ); 00050 QPainter painter( this ); 00051 paintColorBox( &painter, rect(), color_ ); 00052 } 00053 00054 void ColorEditor::paintColorBox( QPainter* painter, const QRect& rect, const QColor& color ) 00055 { 00056 int padding = 1; 00057 int size = rect.height() - padding * 2 - 1; 00058 painter->save(); 00059 painter->setPen( Qt::black ); 00060 painter->setBrush( color ); 00061 painter->drawRect( rect.x() + padding, rect.y() + padding, size, size ); 00062 painter->restore(); 00063 } 00064 00065 void ColorEditor::resizeEvent( QResizeEvent* event ) 00066 { 00067 // Do the normal line-edit-with-button thing 00068 LineEditWithButton::resizeEvent( event ); 00069 00070 // Then add text padding on the left to make room for the color swatch 00071 QMargins marge = textMargins(); 00072 setTextMargins( height(), marge.top(), marge.right(), marge.bottom() ); 00073 } 00074 00075 void ColorEditor::invalidateParse() 00076 { 00077 parse_valid_ = false; 00078 } 00079 00080 void ColorEditor::parseText() 00081 { 00082 // Check for a color name like "black", "red", etc. 00083 if( QColor::colorNames().contains( text(), Qt::CaseInsensitive )) 00084 { 00085 color_.setNamedColor( text().toLower() ); 00086 parse_valid_ = true; 00087 return; 00088 } 00089 // Next look for comma-separated list of ints. 00090 else 00091 { 00092 QStringList list = text().split(QRegExp("[,;]\\s*")); 00093 if( list.size() >= 3 ) 00094 { 00095 bool red_ok, green_ok, blue_ok; 00096 QColor new_color( list.at( 0 ).toInt( &red_ok ), list.at( 1 ).toInt( &green_ok ), list.at( 2 ).toInt( &blue_ok )); 00097 if( red_ok && green_ok && blue_ok ) 00098 { 00099 color_ = new_color; 00100 parse_valid_ = true; 00101 return; 00102 } 00103 } 00104 } 00105 // Finally, if we can't figure out the string, leave the color 00106 // unchanged and reset the text. 00107 setColor( color_ ); 00108 } 00109 00110 void ColorEditor::setColor( const QColor& color ) 00111 { 00112 color_ = color; 00113 setText( QString("%1, %2, %3").arg( color.red() ).arg( color.green() ).arg( color.blue() ) ); 00114 parse_valid_ = true; 00115 } 00116 00117 QColor ColorEditor::getColor() 00118 { 00119 if( !parse_valid_ ) 00120 { 00121 parseText(); 00122 } 00123 return color_; 00124 } 00125 00126 void ColorEditor::onButtonClick() 00127 { 00128 QColorDialog* dialog = new QColorDialog( color_, this ); 00129 connect( dialog, SIGNAL( colorSelected( const QColor& )), 00130 this, SLOT( setColor( const QColor& ))); 00131 if( dialog->exec() == QDialog::Accepted ) 00132 { 00133 update(); 00134 setModified( true ); 00135 simulateReturnPressed(); 00136 } 00137 } 00138 00139 } // end namespace rviz