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# kdcoppropertyproxy.cpp

    00001 /* This file is part of the KDE project
    00002    Copyright (C) 1999 Simon Hausmann <hausmann@kde.org>
    00003
    00004    This library is free software; you can redistribute it and/or
    00005    modify it under the terms of the GNU Library General Public
    00006    License as published by the Free Software Foundation; either
    00007    version 2 of the License, or (at your option) any later version.
    00008
    00009    This library is distributed in the hope that it will be useful,
    00010    but WITHOUT ANY WARRANTY; without even the implied warranty of
    00011    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    00012    Library General Public License for more details.
    00013
    00014    You should have received a copy of the GNU Library General Public License
    00015    along with this library; see the file COPYING.LIB.  If not, write to
    00016    the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
    00017    Boston, MA 02111-1307, USA.
    00018 */
    00019
    00020 #include "kdcoppropertyproxy.h"
    00021
    00022 #include <qstrlist.h>
    00023 #include <qmetaobject.h>
    00024 #include <qvariant.h>
    00025 #include <qcursor.h>
    00026 #include <qbitmap.h>
    00027 #include <qregion.h>
    00028 #include <qpointarray.h>
    00029 #include <qiconset.h>
    00030 #include <qfont.h>
    00031 #include <qimage.h>
    00032 #include <qbrush.h>
    00033 #include <qpalette.h>
    00034
    00035 #include <ctype.h>
    00036 #include <assert.h>
    00037
    00038 class KDCOPPropertyProxyPrivate
    00039 {
    00040 public:
    00041   KDCOPPropertyProxyPrivate()
    00042   {
    00043   }
    00044   ~KDCOPPropertyProxyPrivate()
    00045   {
    00046   }
    00047
    00048   QObject *m_object;
    00049 };
    00050
    00051 KDCOPPropertyProxy::KDCOPPropertyProxy( QObject *object )
    00052 {
    00053   d = new KDCOPPropertyProxyPrivate;
    00054   d->m_object = object;
    00055 }
    00056
    00057 KDCOPPropertyProxy::~KDCOPPropertyProxy()
    00058 {
    00059   delete d;
    00060 }
    00061
    00062 bool KDCOPPropertyProxy::isPropertyRequest( const QCString &fun )
    00063 {
    00064   return isPropertyRequest( fun, d->m_object );
    00065 }
    00066
    00067 bool KDCOPPropertyProxy::processPropertyRequest( const QCString &fun, const QByteArray &data,
    00068                                                  QCString &replyType, QByteArray &replyData )
    00069 {
    00070   return processPropertyRequest( fun, data, replyType, replyData, d->m_object );
    00071 }
    00072
    00073 QValueList<QCString> KDCOPPropertyProxy::functions()
    00074 {
    00075   return functions( d->m_object );
    00076 }
    00077
    00078 bool KDCOPPropertyProxy::isPropertyRequest( const QCString &fun, QObject *object )
    00079 {
    00080   if ( fun == "property(QCString)" ||
    00081        fun == "setProperty(QCString,QVariant)" ||
    00082        fun == "propertyNames(bool)" )
    00083     return true;
    00084
    00085   bool set;
    00086   QCString propName, arg;
    00087   return decodePropertyRequestInternal( fun, object, set, propName, arg );
    00088 }
    00089
    00090 QValueList<QCString> KDCOPPropertyProxy::functions( QObject *object )
    00091 {
    00092   QValueList<QCString> res;
    00093   res << "QVariant property(QCString property)";
    00094   res << "bool setProperty(QCString name,QVariant property)";
    00095   res << "QValueList<QCString> propertyNames(bool super)";
    00096
    00097   QMetaObject *metaObj = object->metaObject();
    00098   QStrList properties = metaObj->propertyNames( true );
    00099   QStrListIterator it( properties );
    00100   for (; it.current(); ++it )
    00101   {
    00102     const QMetaProperty *metaProp = metaObj->property( metaObj->findProperty( it.current(), true ), true );
    00103
    00104     assert( metaProp );
    00105
    00106     QCString name = it.current();
    00107     name.prepend( " " );
    00108     name.prepend( metaProp->type() );
    00109     name.append( "()" );
    00110     res << name;
    00111
    00112     if ( metaProp->writable() )
    00113     {
    00114       QCString setName = it.current();
    00115       setName[ 0 ] = toupper( setName[ 0 ] );
    00116       setName = "void set" + setName + "(" + metaProp->type() + " " + it.current() + ")";
    00117       res << setName;
    00118     }
    00119   }
    00120
    00121   return res;
    00122 }
    00123
    00124 bool KDCOPPropertyProxy::processPropertyRequest( const QCString &fun, const QByteArray &data,
    00125                                                  QCString &replyType, QByteArray &replyData,
    00126                                                  QObject *object )
    00127 {
    00128   if ( fun == "property(QCString)" )
    00129   {
    00130     QCString propName;
    00131     QDataStream stream( data, IO_ReadOnly );
    00132     stream >> propName;
    00133
    00134     replyType = "QVariant";
    00135     QDataStream reply( replyData, IO_WriteOnly );
    00136     reply << object->property( propName );
    00137     return true;
    00138   }
    00139
    00140   if ( fun == "setProperty(QCString,QVariant)" )
    00141   {
    00142     QCString propName;
    00143     QVariant propValue;
    00144     QDataStream stream( data, IO_ReadOnly );
    00145     stream >> propName >> propValue;
    00146
    00147     replyType = "bool";
    00148     QDataStream reply( replyData, IO_WriteOnly );
    00149     reply << (Q_INT8)object->setProperty( propName, propValue );
    00150     return true;
    00151   }
    00152
    00153   if ( fun == "propertyNames(bool)" )
    00154   {
    00155     Q_INT8 b;
    00156     QDataStream stream( data, IO_ReadOnly );
    00157     stream >> b;
    00158
    00159     QValueList<QCString> res;
    00160     QStrList props = object->metaObject()->propertyNames( static_cast<bool>( b ) );
    00161     QStrListIterator it( props );
    00162     for (; it.current(); ++it )
    00163       res.append( it.current() );
    00164
    00165     replyType = "QValueList<QCString>";
    00166     QDataStream reply( replyData, IO_WriteOnly );
    00167     reply << res;
    00168     return true;
    00169   }
    00170
    00171   bool set;
    00172   QCString propName, arg;
    00173
    00174   bool res = decodePropertyRequestInternal( fun, object, set, propName, arg );
    00175   if ( !res )
    00176     return false;
    00177
    00178   if ( set )
    00179   {
    00180     QVariant prop;
    00181     QDataStream stream( data, IO_ReadOnly );
    00182
    00183     QVariant::Type type = QVariant::nameToType( arg );
    00184     if ( type == QVariant::Invalid )
    00185       return false;
    00186
    00187 #define DEMARSHAL( type, val ) \
    00188   case QVariant::type: \
    00189     { \
    00190       val v; \
    00191       stream >> v; \
    00192       prop = QVariant( v ); \
    00193     } \
    00194     break;
    00195
    00196     typedef QValueList<QVariant> ListType;
    00197     typedef QMap<QString,QVariant> MapType;
    00198
    00199     switch ( type )
    00200     {
    00201       DEMARSHAL( Cursor, QCursor )
    00202       DEMARSHAL( Bitmap, QBitmap )
    00203       DEMARSHAL( PointArray, QPointArray )
    00204       DEMARSHAL( Region, QRegion )
    00205       DEMARSHAL( List, ListType )
    00206       DEMARSHAL( Map, MapType )
    00207       DEMARSHAL( String, QString )
    00208       DEMARSHAL( CString, QCString )
    00209       DEMARSHAL( StringList, QStringList )
    00210       DEMARSHAL( Font, QFont )
    00211       DEMARSHAL( Pixmap, QPixmap )
    00212       DEMARSHAL( Image, QImage )
    00213       DEMARSHAL( Brush, QBrush )
    00214       DEMARSHAL( Point, QPoint )
    00215       DEMARSHAL( Rect, QRect )
    00216       DEMARSHAL( Size, QSize )
    00217       DEMARSHAL( Color, QColor )
    00218       DEMARSHAL( Palette, QPalette )
    00219       DEMARSHAL( ColorGroup, QColorGroup )
    00220       case QVariant::IconSet:
    00221       {
    00222         QPixmap val;
    00223         stream >> val;
    00224         prop = QVariant( QIconSet( val ) );
    00225       }
    00226       break;
    00227       DEMARSHAL( Int, int )
    00228       DEMARSHAL( UInt, uint )
    00229       case QVariant::Bool:
    00230       {
    00231         Q_INT8 v;
    00232         stream >> v;
    00233         prop = QVariant( static_cast<bool>( v ), 1 );
    00234       }
    00235         break;
    00236       DEMARSHAL( Double, double )
    00237       default:
    00238         return false;
    00239     }
    00240
    00241     replyType = "void";
    00242     return object->setProperty( propName, prop );
    00243   }
    00244   else
    00245   {
    00246     QVariant prop = object->property( propName );
    00247
    00248     if ( prop.type() == QVariant::Invalid )
    00249       return false;
    00250
    00251     replyType = prop.typeName();
    00252     QDataStream reply( replyData, IO_WriteOnly );
    00253
    00254 #define MARSHAL( type ) \
    00255   case QVariant::type: \
    00256     reply << prop.to##type(); \
    00257     break;
    00258
    00259     switch ( prop.type() )
    00260     {
    00261       MARSHAL( Cursor )
    00262       MARSHAL( Bitmap )
    00263       MARSHAL( PointArray )
    00264       MARSHAL( Region )
    00265       MARSHAL( List )
    00266       MARSHAL( Map )
    00267       MARSHAL( String )
    00268       MARSHAL( CString )
    00269       MARSHAL( StringList )
    00270       MARSHAL( Font )
    00271       MARSHAL( Pixmap )
    00272       MARSHAL( Image )
    00273       MARSHAL( Brush )
    00274       MARSHAL( Point )
    00275       MARSHAL( Rect )
    00276       MARSHAL( Size )
    00277       MARSHAL( Color )
    00278       MARSHAL( Palette )
    00279       MARSHAL( ColorGroup )
    00280       case QVariant::IconSet:
    00281         reply << prop.toIconSet().pixmap();
    00282         break;
    00283       MARSHAL( Int )
    00284       MARSHAL( UInt )
    00285       case QVariant::Bool:
    00286         reply << (Q_INT8)prop.toBool();
    00287         break;
    00288       MARSHAL( Double )
    00289       default:
    00290         return false;
    00291     }
    00292
    00293 #undef MARSHAL
    00294 #undef DEMARSHAL
    00295
    00296     return true;
    00297   }
    00298
    00299   return false;
    00300 }
    00301
    00302 bool KDCOPPropertyProxy::decodePropertyRequestInternal( const QCString &fun, QObject *object, bool &set,
    00303                                                         QCString &propName, QCString &arg )
    00304 {
    00305   if ( fun.length() < 3 )
    00306     return false;
    00307
    00308   set = false;
    00309
    00310   propName = fun;
    00311
    00312   if ( propName.left( 3 ) == "set" )
    00313   {
    00314     propName.detach();
    00315     set = true;
    00316     propName = propName.mid( 3 );
    00317     int p1 = propName.find( '(' );
    00318
    00319     uint len = propName.length();
    00320
    00321     if ( propName[ len - 1 ] != ')' )
    00322       return false;
    00323
    00324     arg = propName.mid( p1+1, len - p1 - 2 );
    00325     propName.truncate( p1 );
    00326     propName[ 0 ] = tolower( propName[ 0 ] );
    00327   }
    00328   else
    00329     propName.truncate( propName.length() - 2 );
    00330
    00331   if ( !object->metaObject()->propertyNames( true ).contains( propName ) )
    00332     return false;
    00333
    00334   return true;
    00335 }

This file is part of the documentation for kdecore Library Version 3.4.1.
Documentation copyright © 1996-2004 the KDE developers.
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