resource.cpp

Qt/Embedded是一个多平台的C++图形用户界面应用程序框架

	}
	if ( !clickable )
	    lv->header()->setClickEnabled( clickable, i );
	if ( !resizeable )
	    lv->header()->setResizeEnabled( resizeable, i );
    }
}

void Resource::loadItem( const QDomElement &e, QPixmap &pix, QString &txt, bool &hasPixmap )
{
    QDomElement n = e;
    hasPixmap = FALSE;
    while ( !n.isNull() ) {
	if ( n.tagName() == "property" ) {
	    QDomElement n2 = n.firstChild().toElement();
	    if ( n2.tagName() == "name" ) {
		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 = loadPixmap( n2.nextSibling().toElement() );
		    hasPixmap = TRUE;
		}
	    }
	}
	n = n.nextSibling().toElement();
    }
}

void Resource::createItem( const QDomElement &e, QWidget *widget, QListViewItem *i )
{
    if ( !WidgetFactory::hasItems( WidgetDatabase::idFromClassName( WidgetFactory::classNameOf( widget ) ) ) )
	return;

    if ( widget->inherits( "QListBox" ) || widget->inherits( "QComboBox" ) ) {
	QDomElement n = e.firstChild().toElement();
	QPixmap pix;
	bool hasPixmap = FALSE;
	QString txt;
	loadItem( n, pix, txt, hasPixmap );
	QListBox *lb = 0;
	if ( widget->inherits( "QListBox" ) )
	    lb = (QListBox*)widget;
	else
	    lb = ( (QComboBox*)widget)->listBox();
	if ( hasPixmap ) {
	    new QListBoxPixmap( lb, pix, txt );
	} else {
	    new QListBoxText( lb, txt );
	}
    } else if ( widget->inherits( "QIconView" ) ) {
	QDomElement n = e.firstChild().toElement();
	QPixmap pix;
	bool hasPixmap = FALSE;
	QString txt;
	loadItem( n, pix, txt, hasPixmap );

	QIconView *iv = (QIconView*)widget;
	new QIconViewItem( iv, txt, pix );
    } else if ( widget->inherits( "QListView" ) ) {
	QDomElement n = e.firstChild().toElement();
	QPixmap pix;
	QValueList<QPixmap> pixmaps;
	QStringList textes;
	QListViewItem *item = 0;
	QListView *lv = (QListView*)widget;
	if ( i )
	    item = new QListViewItem( i, lastItem );
	else
	    item = new QListViewItem( lv, lastItem );
	while ( !n.isNull() ) {
	    if ( n.tagName() == "property" ) {
		QDomElement n2 = n.firstChild().toElement();
		if ( n2.tagName() == "name" ) {
		    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 s = v.toString();
			if ( s.isEmpty() ) {
			    pixmaps << QPixmap();
			} else {
			    pix = loadPixmap( n2.nextSibling().toElement() );
			    pixmaps << pix;
			}
		    }
		}
	    } else if ( n.tagName() == "item" ) {
		item->setOpen( TRUE );
		createItem( n, widget, item );
	    }
		
	    n = n.nextSibling().toElement();
	}
	
	for ( int i = 0; i < lv->columns(); ++i ) {
	    item->setText( i, textes[ i ] );
	    item->setPixmap( i, pixmaps[ i ] );
	}
	lastItem = item;
    }
}

QWidget *Resource::createSpacer( const QDomElement &e, QWidget *parent, QLayout *layout, Qt::Orientation o )
{
    Spacer *spacer = (Spacer*) WidgetFactory::create( WidgetDatabase::idFromClassName("Spacer"),
						      parent, "spacer", FALSE);
    spacer->setOrientation( o );
    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();
    if ( rowspan < 1 )
	rowspan = 1;
    if ( colspan < 1 )
	colspan = 1;
    spacer->setAutoResize( FALSE );
    while ( !n.isNull() ) {
	if ( n.tagName() == "property" ) {
	    QDomElement n2 = n.firstChild().toElement();
	    if ( n2.tagName() == "name" )
		setObjectProperty( spacer, n2.firstChild().toText().data(), n2.nextSibling().toElement() );
	}
	n = n.nextSibling().toElement();
    }
    spacer->setAutoResize( TRUE );

    if ( !previewMode ) {
	if ( formwindow )
	    formwindow->insertWidget( spacer, pasting );
	if ( layout ) {
	    if ( layout->inherits( "QBoxLayout" ) )
		( (QBoxLayout*)layout )->addWidget( spacer, 0, spacer->alignment() );
	    else
		( (QDesignerGridLayout*)layout )->addMultiCellWidget( spacer, row, row + rowspan - 1, col, col + colspan - 1,
								      spacer->alignment() );
	}
    } else {
	QSpacerItem *item = new QSpacerItem( spacer->width(), spacer->height(),
					     spacer->sizePolicy().horData(),
					     spacer->sizePolicy().verData() );
	if ( layout ) {
	    if ( layout->inherits( "QBoxLayout" ) )
		( (QBoxLayout*)layout )->addItem( item );
	    else
		( (QDesignerGridLayout*)layout )->addMultiCell( item, row, row + rowspan - 1, col, col + colspan - 1,
								spacer->alignment() );
	}
	delete spacer;
	return 0;
    }
    return spacer;
}

/*!
  Attention: this function has to be in sync with Uic::setObjectProperty(). If you change one, change both.
*/
void Resource::setObjectProperty( QObject* obj, const QString &prop, const QDomElement &e )
{
    const QMetaProperty *p = obj->metaObject()->property( prop, TRUE );

    if ( !obj->inherits( "QLayout" ) && !previewMode ) {// no layouts in metadatabase... (RS)
	if ( obj->inherits( "CustomWidget" ) ) {
	    MetaDataBase::CustomWidget *cw = ( (CustomWidget*)obj )->customWidget();
	    if ( cw && !cw->hasProperty( prop.latin1() ) && !p && prop != "toolTip" && prop != "whatsThis" )
		return;
	}
	MetaDataBase::setPropertyChanged( obj, prop, TRUE );
    }

    QVariant defVarient;
    if ( e.tagName() == "font" ) {
	QFont f( qApp->font() );
	if ( obj->isWidgetType() && ( (QWidget*)obj )->parentWidget() )
	    f = ( (QWidget*)obj )->parentWidget()->font();
	defVarient = QVariant( f );
    }

    QString comment;
    QVariant v( DomTool::elementToVariant( e, defVarient, comment ) );

    if ( !comment.isEmpty() ) {
	MetaDataBase::addEntry( obj );
	MetaDataBase::setPropertyComment( obj, prop, comment );
    }

    if ( !p ) {
	if ( !previewMode )
	    MetaDataBase::setFakeProperty( obj, prop, v );
	if ( obj->isWidgetType() ) {
	    if ( prop == "toolTip" ) {
		if ( previewMode && !v.toString().isEmpty() )
		    QToolTip::add( (QWidget*)obj, v.toString() );
	    } else if ( prop == "whatsThis" ) {
		if ( previewMode && !v.toString().isEmpty() )
		    QWhatsThis::add( (QWidget*)obj, v.toString() );
	    }
	    return;
	}
    }


    if ( e.tagName() == "pixmap" ) {
	QPixmap pix = loadPixmap( e );
	v = QVariant( pix );
    } else if ( e.tagName() == "iconset" ) {
	QPixmap pix;
	pix.convertFromImage( loadFromCollection( v.toString() ) );
	v = QVariant( QIconSet( pix ) );
    } else if ( e.tagName() == "image" ) {
	v = QVariant( loadFromCollection( v.toString() ) );
    } else 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 ( !previewMode && prop == "caption" ) {
	QCString s1 = v.toCString();
	QString s2 = v.toString();
	if ( !s1.isEmpty() )
	    formwindow->setCaption( s1 );
	else if ( !s2.isEmpty() )
	    formwindow->setCaption( s2 );
    }
    if ( !previewMode && prop == "icon" ) {
	formwindow->setIcon( v.toPixmap() );
    }

    if ( prop == "geometry" ) {
	if ( previewMode && obj == toplevel ) {
	    toplevel->resize( v.toRect().size() );
	    return;
	} else if ( !previewMode && obj == formwindow->mainContainer() ) {
	    formwindow->resize( v.toRect().size() );
	    return;
	}
    }

    if ( obj->inherits( "QLayout" ) && !previewMode ) {
	if ( prop == "spacing" ) {
	    MetaDataBase::setSpacing( WidgetFactory::containerOfWidget( WidgetFactory::layoutParent( (QLayout*)obj ) ), v.toInt() );
	    return;
	}
	if ( prop == "margin" ) {
	    MetaDataBase::setMargin( WidgetFactory::containerOfWidget( WidgetFactory::layoutParent( (QLayout*)obj ) ), v.toInt() );
	    return;
	}
    }

    if ( prop == "name" ) {
	if ( pasting ) {
	    QString s = v.toString();
	    formwindow->unify( (QWidget*)obj, s, TRUE );
	    obj->setName( s );
	    return;
	} else if ( !previewMode && formwindow && obj == formwindow->mainContainer() ) {
	    formwindow->setName( v.toCString() );
	}
    }

    if ( prop == "sizePolicy" ) {
	QSizePolicy sp = v.toSizePolicy();
	sp.setHeightForWidth( ( (QWidget*)obj )->sizePolicy().hasHeightForWidth() );
    }

    obj->setProperty( prop, v );
}


QString Resource::saveInCollection( const QImage &img )
{
    QString imgName = "none";
    QValueList<Image>::Iterator it = images.begin();
    for ( ; it != images.end(); ++it ) {
	if ( img == ( *it ).img ) {
	    imgName = ( *it ).name;
	    break;
	}
    }

    if ( imgName == "none" ) {
	Image i;
	imgName = "image" + QString::number( images.count() );
	i.name = imgName;
	i.img = img;
	images.append( i );
    }
    return imgName;
}

void Resource::saveImageData( const QImage &img, QTextStream &ts, int indent )
{
    QByteArray ba;
    QBuffer buf( ba );
    buf.open( IO_WriteOnly );
    QImageIO iio( &buf, "XPM" );
    iio.setImage( img );
    iio.write();
    buf.close();
    ulong len = ba.size() * 2;
    QByteArray bazip( len );
    ::compress(  (uchar*) bazip.data(), &len, (uchar*) ba.data(), ba.size() );
    QString res;
    ts << makeIndent( indent ) << "<data format=\"XPM.GZ\" length=\"" << ba.size() << "\">";
    static const char hexchars[] = "0123456789abcdef";
    for ( int i = 0; i < (int)len; ++i ) {
	uchar s = (uchar) bazip[i];
	ts << hexchars[s >> 4];
	ts << hexchars[s & 0x0f];
    }
    ts << "</data>" << endl;
}

void Resource::saveImageCollection( QTextStream &ts, int indent )
{
    ts << makeIndent( indent ) << "<images>" << endl;
    indent++;

    QValueList<Image>::Iterator it = images.begin();
    for ( ; it != images.end(); ++it ) {
	ts << makeIndent( indent ) << "<image>" << endl;
	indent++;
	ts << makeIndent( indent ) << "<name>" << ( *it ).name << "</name>" << endl;
	saveImageData( (*it).img, ts, indent );
	indent--;
	ts << makeIndent( indent ) << "</image>" << endl;
    }

    indent--;
    ts << makeIndent( indent ) << "</images>" << endl;
}

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';