uic.cpp

Trolltech公司发布的基于C++图形开发环境

    }
    if ( needEventHandler ) {
	indent = "\t"; // increase indentation for if-clause below
	out << "/*  " << endl;
	out << " *  Main event handler. Reimplemented to handle application" << endl;
	out << " *  font changes" << endl;
	out << " */" << endl;
	out << "bool " << nameOfClass  << "::event( QEvent* ev )" << endl;
	out << "{" << endl;
	out << "    bool ret = " << objClass << "::event( ev ); " << endl;
	out << "    if ( ev->type() == QEvent::ApplicationFontChange ) {" << endl;
	for ( i = 0; i < (int) nl.length(); i++ ) {
	    n = nl.item(i).toElement();
	    if ( DomTool::hasProperty( n, "font" ) )
		createExclusiveProperty( n, "font" );
	}
	out << "    }" << endl;
	out << "    return ret;" << endl;
	out << "}" << endl;
	out << endl;
    }


    // find additional slots
    QStringList publicSlots, protectedSlots;
    for ( n = e; !n.isNull(); n = n.nextSibling().toElement() ) {
	if ( n.tagName()  == "connections" ) {
	    for ( QDomElement n2 = n.firstChild().toElement(); !n2.isNull(); n2 = n2.nextSibling().toElement() ) {
		if ( n2.tagName() == "slot" ) {
		    QString access = n2.attribute( "access" );
		    if ( access == "protected" )
			protectedSlots += n2.firstChild().toText().data();
		    else
			publicSlots += n2.firstChild().toText().data();
		}
	    }
	}
    }

    // create public additional slots as pure-virtual functions
    if ( !publicSlots.isEmpty() ) {
	for ( it = publicSlots.begin(); it != publicSlots.end(); ++it ) {
	    out << "void " << nameOfClass << "::" << (*it) << endl;
	    out << "{" << endl;
	    out << "    qWarning( \"" << nameOfClass << "::" << (*it) << ": Not implemented yet!\" );" << endl;
	    out << "}" << endl;
	    out << endl;
	}
    }

    // create protected additional slots as pure-virtual functions
    if ( !protectedSlots.isEmpty() ) {
	for ( it = protectedSlots.begin(); it != protectedSlots.end(); ++it ) {
	    out << "void " << nameOfClass << "::" << (*it) << endl;
	    out << "{" << endl;
	    out << "    qWarning( \"" << nameOfClass << "::" << (*it) << ": Not implemented yet!\" );" << endl;
	    out << "}" << endl;
	    out << endl;
	}
    }
}


/*!
  Returns include file for class \a className or a null string.
 */
QString Uic::getInclude( const QString& className )
{
    int wid = WidgetDatabase::idFromClassName( className );
    if ( wid != -1 )
	return WidgetDatabase::includeFile( wid );
    return QString::null;
}


/*!
  Creates a declaration for the object given in \a e.

  Any children are ignored, this function does _not_ travesere
  recursively.

  \sa createObjectImpl()
 */
void Uic::createObjectDecl( const QDomElement& e )
{
    if ( e.tagName() == "vbox" ) {
	out << "    QVBoxLayout* " << registerObject(getLayoutName(e) ) << ";" << endl;
    } else if ( e.tagName() == "hbox" ) {
	out << "    QHBoxLayout* " << registerObject(getLayoutName(e) ) << ";" << endl;
    } else if ( e.tagName() == "grid" ) {
	out << "    QGridLayout* " << registerObject(getLayoutName(e) ) << ";" << endl;
    } else {
	QString objClass = getClassName( e );
	if ( objClass.isEmpty() )
	    return;
	QString objName = getObjectName( e );
	if ( objName.isEmpty() )
	    return;	
	// ignore QLayoutWidgets
	if ( objClass == "QLayoutWidget" )
	    return;
	// register the object and unify its name
	objName = registerObject( objName );
	if ( objClass == "Line" )
	    objClass = "QFrame";
	out << "    " << objClass << "* " << objName << ";" << endl;
    }
}



/*!
  Creates an implementation for the object given in \a e.

  Traverses recursively over all children.

  Returns the name of the generated child object.

  \sa createObjectDecl()
 */
QString Uic::createObjectImpl( const QDomElement &e, const QString& parentClass, const QString& parent, const QString& layout )
{

    QDomElement n;
    QString objClass, objName;

    if ( layouts.contains( e.tagName() ) )
	return createLayoutImpl( e, parentClass, parent, layout );

    objClass = getClassName( e );
    if ( objClass.isEmpty() )
	return objName;
    objName = getObjectName( e );

    QString definedName = objName;
    bool isTmpObject = objName.isEmpty() || objClass == "QLayoutWidget";
    if ( isTmpObject ) {
	if ( objClass[0] == 'Q' )
	    objName = objClass.mid(1);
	else
	    objName = objClass.lower();
	objName.prepend( "private" );
    }

    bool isLine = objClass == "Line";
    if ( isLine )
	objClass = "QFrame";

    out << endl;
    if ( objClass == "QLayoutWidget" ) {
	if ( layout.isEmpty() ) {
	    // register the object and unify its name
	    objName = registerObject( objName );
	    out << "    QWidget* " << objName << " = new QWidget( " << parent << ", \"" << definedName << "\" );" << endl;
	} else {
	    // the layout widget is not necessary, hide it by creating its child in the parent
	    QString result;
	    for ( n = e.firstChild().toElement(); !n.isNull(); n = n.nextSibling().toElement() ) {
		if (tags.contains( n.tagName()  ) )
		    result = createObjectImpl( n, parentClass, parent, layout );
	    }
	    return result;
	}
    }   else {
	// register the object and unify its name
	objName = registerObject( objName );
	out << "    ";
	if ( isTmpObject )
	    out << objClass << "* ";
	out << objName << " = new " << createObjectInstance( objClass, parent, objName ) << ";" << endl;
    }

    lastItem = "0";
    // set the properties and insert items
    for ( n = e.firstChild().toElement(); !n.isNull(); n = n.nextSibling().toElement() ) {
	if ( n.tagName() == "property" ) {
	    bool stdset = toBool( n.attribute( "stdset" ) );
	    QDomElement n2 = n.firstChild().toElement();
	    if ( n2.tagName() == "name" ) {
		QString prop = n2.firstChild().toText().data();
		QString value = setObjectProperty( objClass, objName, prop, n2.nextSibling().toElement(), stdset );
		if ( value.isEmpty() )
		    continue;
		if ( prop == "name" )
		    continue;
		if ( prop == "buddy" && value[0] == '\"' && value[(int)value.length()-1] == '\"' ) {
		    buddies << Buddy( objName, value.mid(1, value.length() - 2 ) );
		    continue;
		}
		if ( isLine && prop == "orientation" ) {
		    prop = "frameStyle";
		    if ( value.right(10)  == "Horizontal" )
			value = "QFrame::HLine | QFrame::Sunken";
		    else
			value = "QFrame::VLine | QFrame::Sunken";
		}
		if ( prop == "buttonGroupId" ) {
		    if ( parentClass == "QButtonGroup" )
			out << indent << parent << "->insert( " << objName << ", " << value << " );" << endl;
		    continue;
		}

		if ( prop == "geometry") {
			out << indent << objName << "->setGeometry( " << value << " ); " << endl;
		} else {
		    if ( stdset )
			out << indent << objName << "->" << mkStdSet(prop ) << "( " << value << " );" << endl;
		    else
			out << indent << objName << "->setProperty( \"" << prop << "\", " << value << " );" << endl;
		}
	    }
	} else if ( n.tagName() == "item" ) {
	    if ( objClass.mid( 1 ) == "ListBox" ) {
		QString s = createListBoxItemImpl( n, objName );
		if ( !s.isEmpty() )
		    out << indent << s << endl;
	    } else if ( objClass.mid( 1 ) == "ComboBox" ) {
		QString s = createListBoxItemImpl( n, objName );
		if ( !s.isEmpty() )
		    out << indent << s << endl;
	    } else if ( objClass.mid( 1 ) == "IconView" ) {
		QString s = createIconViewItemImpl( n, objName );
		if ( !s.isEmpty() )
		    out << indent << s << endl;
	    } else if ( objClass.mid( 1 ) == "ListView" ) {
		QString s = createListViewItemImpl( n, objName, QString::null );
		if ( !s.isEmpty() )
		    out << s << endl;
	    }
	} else if ( n.tagName() == "column" ) {
	    if ( objClass.mid( 1 ) == "ListView" ) {
		QString s = createListViewColumnImpl( n, objName );
		if ( !s.isEmpty() )
		    out << s;
	    }
	}
    }

    // create all children, some widgets have special requirements

    if ( objClass == "QTabWidget" ) {
	for ( n = e.firstChild().toElement(); !n.isNull(); n = n.nextSibling().toElement() ) {
	    if ( tags.contains( n.tagName()  ) ) {
		QString page = createObjectImpl( n, objClass, objName );
		QString comment;
		QString label = DomTool::readAttribute( n, "title", "", &comment ).toString();
		out << indent << objName << "->insertTab( " << page << ", " << trcall( label, comment ) << " );" << endl;
	    }
	}
     } else { // standard widgets
	for ( n = e.firstChild().toElement(); !n.isNull(); n = n.nextSibling().toElement() ) {
	    if ( tags.contains( n.tagName()  ) )
		createObjectImpl( n, objClass, objName );
	}
    }

    return objName;
}

/*!
  Creates implementation of an listbox item tag.
*/

QString Uic::createListBoxItemImpl( const QDomElement &e, const QString &parent )
{
    QDomElement n = e.firstChild().toElement();
    QString txt;
    QString com;
    QString pix;
    while ( !n.isNull() ) {
	if ( n.tagName() == "property" ) {
	    QDomElement n2 = n.firstChild().toElement();
	    if ( n2.tagName() == "name" ) {
		com = getComment(n);
		QString attrib = n2.firstChild().toText().data();
		QVariant v = DomTool::elementToVariant( n2.nextSibling().toElement(), QVariant() );
		if ( attrib == "text" )
		    txt = v.toString();
		else if ( attrib == "pixmap" ) {
		    pix = v.toString();
		    if ( !pix.isEmpty() && !pixmapLoaderFunction.isEmpty() ) {
			pix.prepend( pixmapLoaderFunction + "( " );
			pix.append( " )" );
		    }
		}
	    }
	}
	n = n.nextSibling().toElement();
    }

    return pix.isEmpty() ?
      parent + "->insertItem( " + trcall( txt, com ) + " );":
      parent + "->insertItem( " + pix + ", " + trcall( txt, com ) + " );";
}

/*!
  Creates implementation of an iconview item tag.
*/

QString Uic::createIconViewItemImpl( const QDomElement &e, const QString &parent )
{
    QDomElement n = e.firstChild().toElement();
    QString txt;
    QString com;
    QString pix;
    while ( !n.isNull() ) {
	if ( n.tagName() == "property" ) {
	    QDomElement n2 = n.firstChild().toElement();
	    if ( n2.tagName() == "name" ) {
		com = getComment(n);
		QString attrib = n2.firstChild().toText().data();
		QVariant v = DomTool::elementToVariant( n2.nextSibling().toElement(), QVariant() );
		if ( attrib == "text" )
		    txt = v.toString();
		else if ( attrib == "pixmap" ) {
		    pix = v.toString();
		    if ( !pix.isEmpty() && !pixmapLoaderFunction.isEmpty() ) {
			pix.prepend( pixmapLoaderFunction + "( " );
			pix.append( " )" );
		    }
		}
	    }
	}
	n = n.nextSibling().toElement();
    }

    if ( pix.isEmpty() )
	return "(void) new QIconViewItem( " + parent + ", " + trcall( txt, com ) + " );";
    return "(void) new QIconViewItem( " + parent + ", " + trcall( txt, com ) + ", " + pix + " );";

}

/*!
  Creates implementation of an listview item tag.
*/

QString Uic::createListViewItemImpl( const QDomElement &e, const QString &parent,
				     const QString &parentItem )
{
    QString s;

    QDomElement n = e.firstChild().toElement();

    bool hasChildren = e.elementsByTagName( "item" ).count() > 0;
    QString item;

    if ( hasChildren ) {
	item = registerObject( "item" );
	s = indent + "QListViewItem * " + item + " = ";
    } else {
	item = "item";
	if ( item_used )
	    s = indent + item + " = ";
	else
	    s = indent + "QListViewItem * " + item + " = ";
	item_used = TRUE;
    }

    if ( !parentItem.isEmpty() )
	s += "new QListViewItem( " + parentItem + ", " + lastItem + " );\n";
    else
	s += "new QListViewItem( " + parent + ", " + lastItem + " );\n";

    QStringList textes;
    QStringList coms;
    QStringList pixmaps;
    while ( !n.isNull() ) {
	if ( n.tagName() == "property" ) {
	    QDomElement n2 = n.firstChild().toElement();
	    if ( n2.tagName() == "name" ) {
		coms.append(getComment(n));
		QString attrib = n2.firstChild().toText().data();
		QVariant v = DomTool::elementToVariant( n2.nextSibling().toElement(), QVariant() );
		if ( attrib == "text" )
		    textes << v.toString();
		else if ( attrib == "pixmap" ) {
		    QString pix = v.toString();
		    if ( !pix.isEmpty() && !pixmapLoaderFunction.isEmpty() ) {
			pix.prepend( pixmapLoaderFunction + "( " );
			pix.append( " )" );
		    }
		    pixmaps << pix;
		}
	    }
	} else if ( n.tagName() == "item" ) {
	    s += indent + item + "->setOpen( TRUE );\n";
	    s += createListViewItemImpl( n, parent, item );
	}
	n = n.nextSibling().toElement();
    }

    for ( int i = 0; i < (int)textes.count(); ++i ) {
	if ( !textes[ i ].isEmpty() )
	    s += indent + item + "->setText( " + QString::number( i ) + ", " + trcall( textes[ i ], coms[ i ] ) + " );\n";
	if ( !pixmaps[ i ].isEmpty() )
	    s += indent + item + "->setPixmap( " + QString::number( i ) + ", " + pixmaps[ i ] + " );\n";
    }

    lastItem = item;