kapp.cpp

一种效率高

						backgroundColor.dark(120),
						textColor, windowColor );

	QApplication::setWinStyleHighlightColor( selectColor );
	QApplication::setPalette( QPalette(colgrp,disabledgrp,colgrp), TRUE );

	emit kdisplayPaletteChanged();
	emit appearanceChanged();

  }
}

void KApplication::kdisplaySetFont()
{
  QApplication::setFont( generalFont, TRUE );
  // setFont() works every time for me !

  emit kdisplayFontChanged();
  emit appearanceChanged();

  resizeAll();
}	


void KApplication::kdisplaySetStyle()
{
  // QApplication::setStyle( applicationStyle );
  applyGUIStyle( applicationStyle );

  emit kdisplayStyleChanged();
  emit appearanceChanged();
  resizeAll();
}	


void KApplication::kdisplaySetStyleAndFont()
{
  //  QApplication::setStyle( applicationStyle );
  // 	setStyle() works pretty well but may not change the style of combo
  //	boxes.
  QApplication::setFont( generalFont, TRUE );
  applyGUIStyle(applicationStyle);

  emit kdisplayStyleChanged();
  emit kdisplayFontChanged();
  emit appearanceChanged();

  resizeAll();
}	


void KApplication::resizeAll()
{
  // send a resize event to all windows so that they can resize children
  QWidgetList *widgetList = QApplication::topLevelWidgets();
  QWidgetListIt it( *widgetList );

  while ( it.current() )
	{
	  it.current()->resize( it.current()->size() );
	  ++it;
	}
  delete widgetList;
}




void KApplication::invokeHTMLHelp( QString filename, QString topic ) const
{
  if ( fork() == 0 )	
    {		
	  if( filename.isEmpty() )
	    filename = aAppName + "/index.html";

	 QString path = KApplication::kde_htmldir().copy() + "/";

         // first try the locale setting
         QString file = path + klocale->language() + '/' + filename;
         if( !QFileInfo( file ).exists() )
               // not found: use the default
               file = path + "default/" + filename;

	  if( !topic.isEmpty() )
		{
                 file.append( "#" );
                 file.append(topic);
		}
	
	  /* Since this is a library, we must conside the possibilty that
	   * we are being used by a suid root program. These next two
	   * lines drop all privileges.
	   */
	  setuid( getuid() );
	  setgid( getgid() );
	  const char* shell = "/bin/sh";
	  if (getenv("SHELL"))
		shell = getenv("SHELL");
         file.prepend("kdehelp ");
         execl(shell, shell, "-c", file.data(), 0L);
	  exit( 1 );
    }
}

QString KApplication::kdedir()
{
  static QString kdedir;

  if (kdedir.isEmpty()) {
	kdedir = getenv("KDEDIR");
	if (kdedir.isEmpty()) {

#ifdef KDEDIR
	  kdedir = KDEDIR;
#else
	  kdedir = "/usr/local/kde";
#endif
	}
  }

  return kdedir;
}


/* maybe we could read it out of a config file, but
   this can be added later */
const QString& KApplication::kde_htmldir()
{
  static QString dir;
  if (dir.isNull()) {
      dir = KDE_HTMLDIR;
      if (!strncmp(dir.data(), "KDEDIR", 6))
	  dir = kdedir() + dir.right(dir.length() - 6);
  }
  return dir;
}

const QString& KApplication::kde_appsdir()
{
  static QString dir;
  if (dir.isNull()) {
      dir = KDE_APPSDIR;
      if (!strncmp(dir.data(), "KDEDIR", 6))
	  dir = kdedir() + dir.right(dir.length() - 6);
  }
  return dir;
}

const QString& KApplication::kde_icondir()
{
  static QString dir;
  if (dir.isNull()) {
      dir = KDE_ICONDIR;
      if (!strncmp(dir.data(), "KDEDIR", 6))
	  dir = kdedir() + dir.right(dir.length() - 6);
  }
  return dir;
}

const QString& KApplication::kde_datadir()
{
  static QString dir;
  if (dir.isNull()) {
      dir = KDE_DATADIR;
      if (!strncmp(dir.data(), "KDEDIR", 6))
	  dir = kdedir() + dir.right(dir.length() - 6);
  }
  return dir;
}

const QString& KApplication::kde_localedir()
{
  static QString dir;
  if (dir.isNull()) {
	dir = KDE_LOCALE;
	if (!strncmp(dir.data(), "KDEDIR", 6))
	    dir = kdedir() + dir.right(dir.length() - 6);
  }
  return dir;
}

const QString& KApplication::kde_cgidir()
{
  static QString dir;
  if (dir.isNull()) {
      dir = KDE_CGIDIR;
      if (!strncmp(dir.data(), "KDEDIR", 6))
	  dir = kdedir() + dir.right(dir.length() - 6);
  }
  return dir;
}

const QString& KApplication::kde_sounddir()
{
  static QString dir;
  if (dir.isNull()) {
      dir = KDE_SOUNDDIR;
      if (!strncmp(dir.data(), "KDEDIR", 6))
	  dir = kdedir() + dir.right(dir.length() - 6);
  }
  return dir;
}

const QString& KApplication::kde_toolbardir()
{
  static QString dir;
  if (dir.isNull()) {
      dir = KDE_TOOLBARDIR;
      if (!strncmp(dir.data(), "KDEDIR", 6))
	  dir = kdedir() + dir.right(dir.length() - 6);
  }
  return dir;
}

const QString& KApplication::kde_wallpaperdir()
{
  static QString dir;
  if (dir.isNull()) {
      dir = KDE_WALLPAPERDIR;
      if (!strncmp(dir.data(), "KDEDIR", 6))
	  dir = kdedir() + dir.right(dir.length() - 6);
  }
  return dir;
}

const QString& KApplication::kde_bindir()
{
  static QString dir;
  if (dir.isNull()) {
      dir = KDE_BINDIR;
      if (!strncmp(dir.data(), "KDEDIR", 6))
	  dir = kdedir() + dir.right(dir.length() - 6);
  }
  return dir;
}

const QString& KApplication::kde_partsdir()
{
  static QString dir;
  if (dir.isNull()) {
      dir = KDE_PARTSDIR;
      if (!strncmp(dir.data(), "KDEDIR", 6))
	  dir = kdedir() + dir.right(dir.length() - 6);
  }
  return dir;
}

const QString& KApplication::kde_configdir()
{
  static QString dir;
  if (dir.isNull()) {
      dir = KDE_CONFIGDIR;
      if (!strncmp(dir.data(), "KDEDIR", 6))
	  dir = kdedir() + dir.right(dir.length() - 6);
  }
  return dir;
}

const QString& KApplication::kde_mimedir()
{
  static QString dir;
  if (dir.isNull()) {
      dir = KDE_MIMEDIR;
      if (!strncmp(dir.data(), "KDEDIR", 6))
	  dir = kdedir() + dir.right(dir.length() - 6);
  }
  return dir;
}


QString KApplication::localkdedir()
{
  return ( QDir::homeDirPath() + "/.kde" );
}


QString KApplication::localconfigdir()
{
  return ( localkdedir() + "/share/config" );
}


bool KApplication::getKDEFonts(QStrList *fontlist)
{
  QString fontfilename;

  if(fontlist == 0L)
    return false;

  fontfilename = KApplication::localkdedir();

  if(fontfilename.isEmpty()){
    return false;
  }

  fontfilename = fontfilename + "/share/config/kdefonts";

  QFile fontfile(fontfilename);

  if (!fontfile.exists())
    return false;

  if(!fontfile.open(IO_ReadOnly)){
    return false;
  }

  if (!fontfile.isReadable())
    return false;

  QTextStream t(&fontfile);


  while ( !t.eof() ) {
    QString s = t.readLine();
    if(!s.isEmpty())
      fontlist->append( s );
  }

  fontfile.close();

  return true;
}


const char* KApplication::tempSaveName( const char* pFilename )
{
  QString aFilename;

  if( pFilename[0] != '/' )
	{
	  KDEBUG( KDEBUG_WARN, 101, "Relative filename passed to KApplication::tempSaveName" );
	  aFilename = QFileInfo( QDir( "." ), pFilename ).absFilePath();
	}
  else
	aFilename = pFilename;

  QDir aAutosaveDir( QDir::homeDirPath() + "/autosave/" );
  if( !aAutosaveDir.exists() )
	{
	  if( !aAutosaveDir.mkdir( aAutosaveDir.absPath() ) )
		{
		  // Last chance: use _PATH_TMP
		  aAutosaveDir.setPath( _PATH_TMP );
		}
	}

  aFilename.replace( QRegExp( "/" ), "\\!" ).prepend( "#" ).append( "#" ).prepend( "/" ).prepend( aAutosaveDir.absPath() );

  return qstrdup( aFilename.data() );
}


const char* KApplication::checkRecoverFile( const char* pFilename,
        bool& bRecover )
{
  QString aFilename;

  if( pFilename[0] != '/' )
	{
	  KDEBUG( KDEBUG_WARN, 101, "Relative filename passed to KApplication::tempSaveName" );
	  aFilename = QFileInfo( QDir( "." ), pFilename ).absFilePath();
	}
  else
	aFilename = pFilename;

  QDir aAutosaveDir( QDir::homeDirPath() + "/autosave/" );
  if( !aAutosaveDir.exists() )
	{
	  if( !aAutosaveDir.mkdir( aAutosaveDir.absPath() ) )
		{
		  // Last chance: use _PATH_TMP
		  aAutosaveDir.setPath( _PATH_TMP );
		}
	}

  aFilename.replace( QRegExp( "/" ), "\\!" ).prepend( "#" ).append( "#" ).prepend( "/" ).prepend( aAutosaveDir.absPath() );

  if( QFile( aFilename ).exists() )
	{
	  bRecover = true;
	  return qstrdup( aFilename.data() );
	}
  else
	{
	  bRecover = false;
	  return qstrdup( pFilename );
	}
}


bool checkAccess(const char *pathname, int mode)
{
  int accessOK = access( pathname, mode );
  if ( accessOK == 0 )
    return true;  // OK, I can really access the file

  // else
  // if we want to write the file would be created. Check, if the
  // user may write to the directory to create the file.
  if ( mode & W_OK == 0 )
    return false;   // Check for write access is not part of mode => bail out


  //strip the filename (everything until '/' from the end
  QString dirName(pathname);
  int pos = dirName.findRev('/');
  if ( pos == -1 )
    return false;   // No path in argument. This is evil, we won't allow this

  dirName.resize(pos+1); // strip everything starting from the last '/'

  accessOK = access( dirName, W_OK );
  // -?- Can I write to the accessed diretory
  if ( accessOK == 0 )
    return true;  // Yes
  else
    return false; // No
}


void KApplication::setTopWidget( QWidget *topWidget )
{
  pTopWidget = topWidget;
  if (topWidget){
    // set the specified icons
    KWM::setIcon(topWidget->winId(), getIcon());
    KWM::setMiniIcon(topWidget->winId(), getMiniIcon());
    // set a short icon text
    XSetIconName( qt_xdisplay(), topWidget->winId(), getCaption() );
    if (bSessionManagement)
      enableSessionManagement(bSessionManagementUserDefined);

    if (!bSessionManagement)
	KWM::setWmCommand( topWidget->winId(), aWmCommand);
  }
}

void KApplication::registerTopWidget()
{
}

void KApplication::unregisterTopWidget()
{
}

#include "kapp.moc"