kscreensaver/kxsconfig/kxsxml.cpp

   1 //-----------------------------------------------------------------------------
   2 //
   3 // KDE xscreensaver configuration dialog
   4 //
   5 // Copyright (c)  Martin R. Jones <mjones@kde.org> 2002
   6 //
   7 // This program is free software; you can redistribute it and/or
   8 // modify it under the terms of the GNU General Public
   9 // License as published by the Free Software Foundation;
  10 // version 2 of the License.
  11 //
  12 // This program is distributed in the hope that it will be useful,
  13 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15 // General Public License for more details.
  16 //
  17 // You should have received a copy of the GNU General Public License
  18 // along with this program; see the file COPYING.  If not, write to
  19 // the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  20 // Boston, MA 02110-1301, USA.
  21
  22 #include "kxsxml.h"
  23 #include "kxscontrol.h"
  24 #include <qobject.h>
  25 #include <qfile.h>
  26 #include <kvbox.h>
  27 #include <khbox.h>
  28 #include <stdio.h>
  29
  30 KXSXml::KXSXml( QWidget *p )
  31     : parent(p), handler(0)
  32 {
  33 }
  34
  35 bool KXSXml::parse( const QString &filename )
  36 {
  37     QFile file( filename );
  38     handler = new KXSXmlHandler( parent );
  39     QXmlInputSource source( &file );
  40     QXmlSimpleReader reader;
  41     reader.setContentHandler( handler );
  42     if ( !reader.parse( &source, false ) )
  43         return false;
  44
  45     return true;
  46 }
  47
  48 QList<KXSConfigItem*> KXSXml::items() const
  49 {
  50     if ( handler )
  51         return handler->items();
  52     return QList<KXSConfigItem*>();
  53 }
  54
  55 QString KXSXml::description() const
  56 {
  57     if ( handler )
  58         return handler->description();
  59     return QString();
  60 }
  61
  62 //===========================================================================
  63
  64 KXSXmlHandler::KXSXmlHandler( QWidget *p )
  65     : QXmlDefaultHandler(), parent(p), selItem(0), inDesc(false)
  66 {
  67     mParentStack.push( p );
  68 }
  69
  70 bool KXSXmlHandler::startDocument()
  71 {
  72     return true;
  73 }
  74
  75 bool KXSXmlHandler::startElement( const QString&, const QString&,
  76                                     const QString& qName,
  77                                     const QXmlAttributes &atts )
  78 {
  79     KXSConfigItem *i = 0;
  80     QString id = atts.value("id");
  81     if ( qName == "number" ) {
  82         QString sLow = atts.value( "low" );
  83         QString sHigh = atts.value( "high" );
  84         if ( sLow.contains( '.' ) || sHigh.contains( '.' ) ) {
  85             if ( parent )
  86                 i = new KXSDoubleRangeControl( parent, id, atts );
  87             else
  88                 i = new KXSDoubleRangeItem( id, atts );
  89         } else {
  90             if ( parent )
  91                 i = new KXSRangeControl( parent, id, atts );
  92             else
  93                 i = new KXSRangeItem( id, atts );
  94         }
  95     } else if ( qName == "boolean" ) {
  96         if ( parent )
  97             i = new KXSCheckBoxControl( parent, id, atts );
  98         else
  99             i = new KXSBoolItem( id, atts );
 100     } else if ( qName == "string" ) {
 101         if ( parent )
 102             i = new KXSLineEditControl( parent, id, atts );
 103         else
 104             i = new KXSStringItem( id, atts );
 105     } else if ( qName == "file" ) {
 106         if ( parent )
 107             i = new KXSFileControl( parent, id, atts );
 108         else
 109             i = new KXSStringItem( id, atts );
 110     } else if ( qName == "_description" ) {
 111         inDesc = true;
 112     } else if ( qName == "select" ) {
 113         if ( parent )
 114             selItem = new KXSDropListControl( parent, id, atts );
 115         else
 116             selItem = new KXSSelectItem( id, atts );
 117         i = selItem;
 118     } else if ( qName == "option" && selItem ) {
 119         selItem->addOption( atts );
 120     } else if ( qName == "hgroup" && parent ) {
 121         KHBox *hb = new KHBox( parent );
 122         mParentStack.push( hb );
 123         parent = hb;
 124     } else if ( qName == "vgroup" && parent ) {
 125         KVBox *vb = new KVBox( parent );
 126         mParentStack.push( vb );
 127         parent = vb;
 128     }
 129
 130     if ( i )
 131         mConfigItemList.append( i );
 132
 133     return true;
 134 }
 135
 136 bool KXSXmlHandler::endElement( const QString&, const QString&, const QString &qName )
 137 {
 138     if ( qName == "select" ) {
 139         selItem = 0;
 140     } else if ( qName == "_description" ) {
 141         inDesc = false;
 142     } else if ( (qName == "hgroup" || qName == "vgroup") && parent ) {
 143         if ( mParentStack.count() > 1 ) {
 144             mParentStack.pop();
 145             parent = mParentStack.top();
 146         }
 147     }
 148     return true;
 149 }
 150
 151 bool KXSXmlHandler::characters( const QString &ch )
 152 {
 153     if ( inDesc )
 154         desc += ch;
 155     return true;
 156 }
 157