qwidgetfactory.cpp

来自「qt-x11-free-3.0.3.tar.gz minigui图形界面工具」· C++ 代码 · 共 1,717 行 · 第 1/4 页

#ifndef QT_NO_SQL
	    if ( prop == "database" && !obj->inherits( "QDataView" )
		 && !obj->inherits( "QDataBrowser" ) ) {
		QStringList lst = DomTool::elementToVariant( e, QVariant( QStringList() ) ).toStringList();
		if ( lst.count() > 2 ) {
		    if ( dbControls )
			dbControls->insert( obj->name(), lst[ 2 ] );
		} else if ( lst.count() == 2 ) {
		    dbTables.insert( obj->name(), lst );
		}
	    } else if ( prop == "database" ) {
		QStringList lst = DomTool::elementToVariant( e, QVariant( QStringList() ) ).toStringList();
		if ( lst.count() == 2 && obj->inherits( "QWidget" ) ) {
		    SqlWidgetConnection conn( lst[ 0 ], lst[ 1 ] );
		    sqlWidgetConnections.insert( (QWidget*)obj, conn );
		    dbControls = conn.dbControls;
		}
	    } else
#endif
		if ( prop == "buddy" ) {
		buddies.insert( obj->name(), v.toCString() );
	    } else if ( prop == "frameworkCode" ) {
		if ( !DomTool::elementToVariant( e, QVariant( TRUE, 0 ) ).toBool() ) {
		    noDatabaseWidgets << obj->name();
		}
	    } else if ( prop == "buttonGroupId" ) {
		if ( obj->inherits( "QButton" ) && obj->parent()->inherits( "QButtonGroup" ) )
		    ( (QButtonGroup*)obj->parent() )->insert( (QButton*)obj, v.toInt() );
	    }

	    return;
	}
    }

    if ( e.tagName() == "palette" ) {
	QDomElement n = e.firstChild().toElement();
	QPalette p;
	while ( !n.isNull() ) {
	    QColorGroup cg;
	    if ( n.tagName() == "active" ) {
		cg = loadColorGroup( n );
		p.setActive( cg );
	    } else if ( n.tagName() == "inactive" ) {
		cg = loadColorGroup( n );
		p.setInactive( cg );
	    } else if ( n.tagName() == "disabled" ) {
		cg = loadColorGroup( n );
		p.setDisabled( cg );
	    }
	    n = n.nextSibling().toElement();
	}
	v = QPalette( p );
    } else if ( e.tagName() == "enum" && p && p->isEnumType() ) {
	QString key( v.toString() );
	v = QVariant( p->keyToValue( key ) );
    } else if ( e.tagName() == "set" && p && p->isSetType() ) {
	QString keys( v.toString() );
	QStringList lst = QStringList::split( '|', keys );
	QStrList l;
	for ( QStringList::Iterator it = lst.begin(); it != lst.end(); ++it )
	    l.append( *it );
	v = QVariant( p->keysToValue( l ) );
    }

    if ( prop == "geometry" ) {
	if ( obj == toplevel ) {
	    toplevel->resize( v.toRect().size() );
	    return;
	}
    }

    obj->setProperty( prop, v );
}

void QWidgetFactory::createSpacer( const QDomElement &e, QLayout *layout )
{
    QDomElement n = e.firstChild().toElement();
    int row = e.attribute( "row" ).toInt();
    int col = e.attribute( "column" ).toInt();
    int rowspan = e.attribute( "rowspan" ).toInt();
    int colspan = e.attribute( "colspan" ).toInt();

    Qt::Orientation orient = Qt::Horizontal;
    int w = 0, h = 0;
    QSizePolicy::SizeType sizeType = QSizePolicy::Preferred;
    while ( !n.isNull() ) {
	if ( n.tagName() == "property" ) {
	    QString prop = n.attribute( "name" );
	    if ( prop == "orientation" ) {
		if ( n.firstChild().firstChild().toText().data() == "Horizontal" )
		    orient = Qt::Horizontal;
		else
		    orient = Qt::Vertical;
	    } else if ( prop == "sizeType" ) {
		if ( n.firstChild().firstChild().toText().data() == "Fixed" )
		    sizeType = QSizePolicy::Fixed;
		else if ( n.firstChild().firstChild().toText().data() == "Minimum" )
		    sizeType = QSizePolicy::Minimum;
		else if ( n.firstChild().firstChild().toText().data() == "Maximum" )
		    sizeType = QSizePolicy::Maximum;
		else if ( n.firstChild().firstChild().toText().data() == "Preferred" )
		    sizeType = QSizePolicy::Preferred;
		else if ( n.firstChild().firstChild().toText().data() == "MinimumExpanding" )
		    sizeType = QSizePolicy::MinimumExpanding;
		else if ( n.firstChild().firstChild().toText().data() == "Expanding" )
		    sizeType = QSizePolicy::Expanding;
	    } else if ( prop == "sizeHint" ) {
		w = n.firstChild().firstChild().firstChild().toText().data().toInt();
		h = n.firstChild().firstChild().nextSibling().firstChild().toText().data().toInt();
	    }
	}
	n = n.nextSibling().toElement();
    }

    if ( rowspan < 1 )
	rowspan = 1;
    if ( colspan < 1 )
	colspan = 1;
    QSpacerItem *item = new QSpacerItem( w, h, orient == Qt::Horizontal ? sizeType : QSizePolicy::Minimum,
					 orient == Qt::Vertical ? sizeType : QSizePolicy::Minimum );
    if ( layout ) {
	if ( layout->inherits( "QBoxLayout" ) )
	    ( (QBoxLayout*)layout )->addItem( item );
	else
	    ( (QGridLayout*)layout )->addMultiCell( item, row, row + rowspan - 1, col, col + colspan - 1,
						    orient == Qt::Horizontal ? Qt::AlignVCenter : Qt::AlignHCenter );
    }
}

static QImage loadImageData( QDomElement &n2 )
{
    QImage img;
    QString data = n2.firstChild().toText().data();
    char *ba = new char[ data.length() / 2 ];
    for ( int i = 0; i < (int)data.length() / 2; ++i ) {
	char h = data[ 2 * i ].latin1();
	char l = data[ 2 * i  + 1 ].latin1();
	uchar r = 0;
	if ( h <= '9' )
	    r += h - '0';
	else
	    r += h - 'a' + 10;
	r = r << 4;
	if ( l <= '9' )
	    r += l - '0';
	else
	    r += l - 'a' + 10;
	ba[ i ] = r;
    }
    QString format = n2.attribute( "format", "PNG" );
    if ( format == "XPM.GZ" ) {
	ulong len = n2.attribute( "length" ).toULong();
	if ( len < data.length() * 5 )
	    len = data.length() * 5;
	QByteArray baunzip( len );
	::uncompress( (uchar*) baunzip.data(), &len, (uchar*) ba, data.length()/2 );
	img.loadFromData( (const uchar*)baunzip.data(), len, "XPM" );
    }  else {
	img.loadFromData( (const uchar*)ba, data.length() / 2, format );
    }
    delete [] ba;

    return img;
}

void QWidgetFactory::loadImageCollection( const QDomElement &e )
{
    QDomElement n = e.firstChild().toElement();
    while ( !n.isNull() ) {
	if ( n.tagName() == "image" ) {
	    Image img;
	    img.name =  n.attribute( "name" );
	    QDomElement n2 = n.firstChild().toElement();
	    while ( !n2.isNull() ) {
		if ( n2.tagName() == "data" )
		    img.img = loadImageData( n2 );
		n2 = n2.nextSibling().toElement();
	    }
	    images.append( img );
	    n = n.nextSibling().toElement();
	}
    }
}

QImage QWidgetFactory::loadFromCollection( const QString &name )
{
    QValueList<Image>::Iterator it = images.begin();
    for ( ; it != images.end(); ++it ) {
	if ( ( *it ).name == name )
	    return ( *it ).img;
    }
    return QImage();
}

QPixmap QWidgetFactory::loadPixmap( const QDomElement &e )
{
    QString arg = e.firstChild().toText().data();
    if ( usePixmapCollection ) {
	const QMimeSource *m = QMimeSourceFactory::defaultFactory()->data( arg );
	if ( !m )
	    return QPixmap();
	QPixmap pix;
	QImageDrag::decode( m, pix );
	return pix;
    }

    QImage img = loadFromCollection( arg );
    QPixmap pix;
    pix.convertFromImage( img );
    return pix;
}

QColorGroup QWidgetFactory::loadColorGroup( const QDomElement &e )
{
    QColorGroup cg;
    int r = -1;
    QDomElement n = e.firstChild().toElement();
    QColor col;
    while ( !n.isNull() ) {
	if ( n.tagName() == "color" ) {
	    r++;
	    cg.setColor( (QColorGroup::ColorRole)r, (col = DomTool::readColor( n ) ) );
	} else if ( n.tagName() == "pixmap" ) {
	    QPixmap pix = loadPixmap( n );
	    cg.setBrush( (QColorGroup::ColorRole)r, QBrush( col, pix ) );
	}
	n = n.nextSibling().toElement();
    }
    return cg;
}

struct Connection
{
    QObject *sender, *receiver;
    QCString signal, slot;
    bool operator==( const Connection &c ) const {
	return sender == c.sender && receiver == c.receiver &&
	       signal == c.signal && slot == c.slot ;
    }
};

class NormalizeObject : public QObject
{
public:
    NormalizeObject() : QObject() {}
    static QCString normalizeSignalSlot( const char *signalSlot ) { return QObject::normalizeSignalSlot( signalSlot ); }
};

void QWidgetFactory::loadConnections( const QDomElement &e, QObject *connector )
{
    QDomElement n = e.firstChild().toElement();
    while ( !n.isNull() ) {
	if ( n.tagName() == "connection" ) {
	    QString lang = n.attribute( "language", "C++" );
	    QDomElement n2 = n.firstChild().toElement();
	    Connection conn;
	    while ( !n2.isNull() ) {
		if ( n2.tagName() == "sender" ) {
		    QString name = n2.firstChild().toText().data();
		    if ( name == "this" || qstrcmp( toplevel->name(), name ) == 0 ) {
			conn.sender = toplevel;
		    } else {
			if ( name == "this" )
			    name = toplevel->name();
			QObjectList *l = toplevel->queryList( 0, name, FALSE );
			if ( l ) {
			    if ( l->first() )
				conn.sender = l->first();
			    delete l;
			}
		    }
		    if ( !conn.sender )
			conn.sender = findAction( name );
		} else if ( n2.tagName() == "signal" ) {
		    conn.signal = n2.firstChild().toText().data();
		} else if ( n2.tagName() == "receiver" ) {
		    QString name = n2.firstChild().toText().data();
		    if ( name == "this" || qstrcmp( toplevel->name(), name ) == 0 ) {
			conn.receiver = toplevel;
		    } else {
			QObjectList *l = toplevel->queryList( 0, name, FALSE );
			if ( l ) {
			    if ( l->first() )
				conn.receiver = l->first();
			    delete l;
			}
		    }
		} else if ( n2.tagName() == "slot" ) {
		    conn.slot = n2.firstChild().toText().data();
		}
		n2 = n2.nextSibling().toElement();
	    }

	    conn.signal = NormalizeObject::normalizeSignalSlot( conn.signal );
	    conn.slot = NormalizeObject::normalizeSignalSlot( conn.slot );

	    QObject *sender = 0, *receiver = 0;
	    QObjectList *l = toplevel->queryList( 0, conn.sender->name(), FALSE );
	    if ( qstrcmp( conn.sender->name(), toplevel->name() ) == 0 ) {
		sender = toplevel;
	    } else {
		if ( !l || !l->first() ) {
		    delete l;
		    n = n.nextSibling().toElement();
		    continue;
		}
		sender = l->first();
		delete l;
	    }
	    if ( !sender )
		sender = findAction( conn.sender->name() );

	    if ( qstrcmp( conn.receiver->name(), toplevel->name() ) == 0 ) {
		receiver = toplevel;
	    } else {
		l = toplevel->queryList( 0, conn.receiver->name(), FALSE );
		if ( !l || !l->first() ) {
		    delete l;
		    n = n.nextSibling().toElement();
		    continue;
		}
		receiver = l->first();
		delete l;
	    }

	    if ( lang == "C++" ) {
		QString s = "2""%1";
		s = s.arg( conn.signal );
		QString s2 = "1""%1";
		s2 = s2.arg( conn.slot );

		QStrList signalList = sender->metaObject()->signalNames( TRUE );
		QStrList slotList = receiver->metaObject()->slotNames( TRUE );

		// if this is a connection to a custom slot and we have a connector, try this as receiver
		if ( slotList.find( conn.slot ) == -1 && receiver == toplevel && connector ) {
		    slotList = connector->metaObject()->slotNames( TRUE );
		    receiver = connector;
		}

		// avoid warnings
		if ( signalList.find( conn.signal ) == -1 ||
		     slotList.find( conn.slot ) == -1 ) {
		    n = n.nextSibling().toElement();
		    continue;
		}
		QObject::connect( sender, s, receiver, s2 );
	    } else {
		EventFunction ef = eventMap[ conn.sender ];
		ef.events.append( conn.signal );
		ef.functions.append( QStringList::split( ',', conn.slot ) );
		eventMap.replace( conn.sender, ef );
	    }
	} else if ( n.tagName() == "slot" ) {
	    QString s = n.firstChild().toText().data();
	    languageSlots.insert( s.left( s.find( "(" ) ) , n.attribute( "language" ) );
	}
	n = n.nextSibling().toElement();
    }
}

void QWidgetFactory::loadTabOrder( const QDomElement &e )
{
    QWidget *last = 0;
    QDomElement n = e.firstChild().toElement();
    while ( !n.isNull() ) {
	if ( n.tagName() == "tabstop" ) {
	    QString name = n.firstChild().toText().data();
	    QObjectList *l = toplevel->queryList( 0, name, FALSE );
	    if ( l ) {
		if ( l->first() ) {
		    QWidget *w = (QWidget*)l->first();
		    if ( last )
			toplevel->setTabOrder( last, w );
		    last = w;
		}
		delete l;
	    }
	}
	n = n.nextSibling().toElement();
    }
}

void QWidgetFactory::createColumn( const QDomElement &e, QWidget *widget )
{
    if ( widget->inherits( "QListView" ) && e.tagName() == "column" ) {
	QListView *lv = (QListView*)widget;
	QDomElement n = e.firstChild().toElement();
	QPixmap pix;
	bool hasPixmap = FALSE;
	QString txt;
	bool clickable = TRUE, resizeable = TRUE;
	while ( !n.isNull() ) {
	    if ( n.tagName() == "property" ) {
		QString attrib = n.attribute( "name" );
		QVariant v = DomTool::elementToVariant( n.firstChild().toElement(), QVariant() );
		if ( attrib == "text" )
		    txt = v.toString();
		else if ( attrib == "pixmap" ) {
		    pix = loadPixmap( n.firstChild().toElement().toElement() );
		    hasPixmap = !pix.isNull();
		} else if ( attrib == "clickable" )
		    clickable = v.toBool();
		else if ( attrib == "resizeable" )
		    resizeable = v.toBool();
	    }
	    n = n.nextSibling().toElement();
	}
	lv->addColumn( txt );
	int i = lv->header()->count() - 1;
	if ( hasPixmap ) {
	    lv->header()->setLabel( i, pix, txt );
	}
	if ( !clickable )
	    lv->header()->setClickEnabled( clickable, i );
	if ( !resizeable )
	    lv->header()->setResizeEnabled( resizeable, i );
    }
#ifndef QT_NO_TABLE
    else if ( widget->inherits( "QTable" ) ) {
	QTable *table = (QTable*)widget;
#ifndef QT_NO_SQL
	bool isSql = (widget->inherits( "QDataTable" ));
#endif
	bool isRow;
	if ( ( isRow = e.tagName() == "row" ) )
	    table->setNumRows( table->numRows() + 1 );
	else {
#ifndef QT_NO_SQL
	    if ( !isSql )