help_panel.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 <QVBoxLayout>
00031 #include <QTextBrowser>
00032 #include <QUrl>
00033 
00034 #include <boost/filesystem.hpp>
00035 
00036 #include "rviz/visualization_manager.h"
00037 
00038 #include "rviz/help_panel.h"
00039 
00040 namespace fs = boost::filesystem;
00041 
00042 namespace rviz
00043 {
00044 
00045 HelpPanel::HelpPanel( QWidget* parent )
00046   : Panel( parent )
00047   , browser_( NULL )
00048 {
00049   QVBoxLayout* layout = new QVBoxLayout( this );
00050   browser_ = new QTextBrowser();
00051   layout->addWidget( browser_ );
00052 }
00053 
00054 HelpPanel::~HelpPanel()
00055 {
00056 }
00057 
00058 void HelpPanel::onInitialize()
00059 {
00060   setHelpFile( vis_manager_->getHelpPath() );
00061 }
00062 
00063 void HelpPanel::setHelpFile( const QString& qfile_path )
00064 {
00065   std::string file_path = qfile_path.toStdString();
00066 
00067   if( !fs::exists( file_path ))
00068   {
00069     browser_->setText( "Help file '" + qfile_path + "' does not exist." );
00070   }
00071   else if( fs::is_directory( file_path ))
00072   {
00073     browser_->setText( "Help file '" + qfile_path + "' is a directory, not a file." );
00074   }
00075   else
00076   {
00077     QUrl url = QUrl::fromLocalFile( qfile_path );
00078     if( browser_->source() == url )
00079     {
00080       browser_->reload();
00081     }
00082     else
00083     {
00084       browser_->setSource( url );
00085     }
00086   }
00087 }
00088 
00089 } // end namespace rviz


rviz
Author(s): Dave Hershberger, David Gossow, Josh Faust
autogenerated on Mon Oct 6 2014 07:26:35