nw_help.cpp

/****************************************************************************
**
**  NightWatch Video Navigator
**  2020 (c) Vladi Belperchinov-Shabanski
**  <cade@bis.bg> <shabanski@gmail.com> <cade@cpan.org>
**  https://github.com/cade-vs/nightwatch
**
****************************************************************************/

#include <QKeyEvent>
#include <QResource>

#include "nw_help.h"

NWHelpBrowser::NWHelpBrowser()
  : QTextBrowser()
{
};

void NWHelpBrowser::keyPressEvent ( QKeyEvent * e )
{
  if( e->modifiers() & Qt::ALT )
    {
    switch( e->key() )
      {
      default: QTextBrowser::keyPressEvent( e ); break;
      }
    }
  else
    {
    switch( e->key() )
      {
      case Qt::Key_Escape:
      case Qt::Key_Return:
      case Qt::Key_F4    : close(); break;

      default:
            if( e->text() == "" )
              QTextBrowser::keyPressEvent( e );
            else
              switch( e->text().toLatin1().at( 0 ) )
              {
              default: QTextBrowser::keyPressEvent( e ); break;
              }
      }
    }
};

NWHelpBrowser *help_browser;

void display_help( NWMainWindow* main_window )
{
  if( help_browser == NULL )
    help_browser = new NWHelpBrowser;
  help_browser->setHtml( QString( QVariant( (const char*)(QResource( ":/nw_help.html" ).data()) ).toString() ) );

  help_browser->setObjectName( "NWHelpWindow" );
  help_browser->setWindowTitle( "NightWatch/4 Help" );

  if( main_window )
    {
    help_browser->resize( main_window->size() );
    help_browser->move( main_window->pos() );
    }
  else
    {
    help_browser->resize( 800, 600 );
    help_browser->move( 100, 100 );
    }  

  help_browser->show();
};