glade2ui.cpp

Linux下的基于X11的图形开发环境。

    bool layouted = ( numImages > 0 );
    if ( layouted ) {
	emitOpening( QString("grid") );
	if ( !logoImage.isEmpty() )
	    emitPixmap( imageName(logoImage), numImages, numImages + 1, 0, 1 );
	if ( !watermarkImage.isEmpty() )
	    emitPixmap( imageName(watermarkImage), 0, 1, numImages,
			numImages + 1 );
    } else {
	leftAttach = -1;
	rightAttach = -1;
	topAttach = -1;
	bottomAttach = -1;
    }

    if ( gtkClass.endsWith(QString("Standard")) ) {
	emitChildWidgets( childWidgets, layouted, leftAttach, rightAttach,
			  topAttach, bottomAttach );
    } else if ( !text.isEmpty() ) {
	if ( layouted )
	    emitOpeningWidget( QString("QLayoutWidget"), leftAttach,
			       rightAttach, topAttach, bottomAttach );
	emitOpening( QString("hbox") );
	emitSpacer( QString("Horizontal") );
	emitOpeningWidget( QString("QLabel") );
	emitProperty( QString("text"), text );
	emitClosing( QString("widget") );
	emitSpacer( QString("Horizontal") );
	emitClosing( QString("hbox") );
	if ( layouted )
	    emitClosing( QString("widget") );
    }

    if ( layouted )
	emitClosing( QString("grid") );
    emitClosing( QString("widget") );
}

void Glade2Ui::emitGtkWindowChildWidgets(
	const QValueList<QDomElement>& childWidgets, const QString& qtClass )
{
    if ( childWidgets.count() == 1 && qtClass == QString("QWizard") ) {
	emitFontProperty( QString("titleFont"), 18, FALSE );

	QDomNode n = childWidgets.first().firstChild();
	while ( !n.isNull() ) {
	    if ( n.toElement().tagName() == QString("widget") )
		emitGnomeDruidPage( n.toElement() );
	    n = n.nextSibling();
	}
    } else {
	emitChildWidgets( childWidgets, FALSE );
    }
}

bool Glade2Ui::packEnd( const QDomElement& widget )
{
    QDomNode n = widget.firstChild();
    while ( !n.isNull() ) {
	if ( n.toElement().tagName() == QString("child") ) {
	    QDomNode child = n.firstChild();
	    while ( !child.isNull() ) {
		if ( child.toElement().tagName() == QString("pack") ) {
		    QString pack = getTextValue( child );
		    return pack.endsWith( QString("_END") );
		}
		child = child.nextSibling();
	    }
	}
	n = n.nextSibling();
    }
    return FALSE;
}

void Glade2Ui::emitChildWidgets( const QValueList<QDomElement>& childWidgets,
				 bool layouted, int leftAttach, int rightAttach,
				 int topAttach, int bottomAttach )
{
    QValueList<QDomElement> start;
    QValueList<QDomElement> end;
    QValueList<QDomElement>::ConstIterator e;

    if ( layouted ) {
	e = childWidgets.begin();
	while ( e != childWidgets.end() ) {
	    if ( packEnd(*e) )
		end.push_front( *e );
	    else
		start.push_back( *e );
	    ++e;
	}
    } else {
	start = childWidgets;
    }

    e = start.begin();
    while ( e != start.end() ) {
	emitWidget( *e, layouted, leftAttach, rightAttach, topAttach,
		    bottomAttach );
	++e;
    }
    e = end.begin();
    while ( e != end.end() ) {
	emitWidget( *e, layouted, leftAttach, rightAttach, topAttach,
		    bottomAttach );
	++e;
    }
}

void Glade2Ui::emitOpeningWidget( const QString& qtClass, int leftAttach,
				  int rightAttach, int topAttach,
				  int bottomAttach )
{
    AttributeMap attr = attribute( QString("class"), qtClass );
    attach( &attr, leftAttach, rightAttach, topAttach, bottomAttach );
    emitOpening( QString("widget"), attr );
}

/*
  Returns TRUE if the vbox containing childWidgets should have a
  spacer at the end to prevent it from looking bad, otherwise returns
  FALSE.

  The algorithm is very experimental.
*/
bool Glade2Ui::shouldPullup( const QValueList<QDomElement>& childWidgets )
{
    QRegExp gtkSmallWidget( QString(
	    "G.*(?:Button|Combo|Dial|Entry|Label|OptionMenu|Picker|ProgressBar"
	    "|Separator|Statusbar|Toolbar|VBox)") );

    QValueList<QDomElement>::ConstIterator c = childWidgets.begin();
    while ( c != childWidgets.end() ) {
	QValueList<QDomElement> grandchildWidgets;
	QString gtkClass;

	QDomNode n = (*c).firstChild();
	while ( !n.isNull() ) {
	    QString tagName = n.toElement().tagName();
	    if ( tagName == QString("class") ) {
		gtkClass = getTextValue( n );
	    } else if ( tagName == QString("widget") ) {
		grandchildWidgets.push_back( n.toElement() );
	    }
	    n = n.nextSibling();
	}

	if ( !gtkSmallWidget.exactMatch(gtkClass) ||
	     !shouldPullup(grandchildWidgets) )
	    return FALSE;
	++c;
    }
    return TRUE;
}

QString Glade2Ui::emitWidget( const QDomElement& widget, bool layouted,
			      int leftAttach, int rightAttach, int topAttach,
			      int bottomAttach )
{
    QRegExp gtkLayoutWidget( QString(
	    "Gtk(?:Packer|Table|Toolbar|[HV](?:(?:Button)?Box))") );
    QRegExp gtkOrientedWidget( QString(
	    "Gtk([HV])(?:Paned|Scale|Scrollbar|Separator)") );

    QValueList<QDomElement> childWidgets;
    QString gtkClass;
    QString name;
    QString title;
    int x = 0;
    int y = 0;
    int width = 0;
    int height = 0;
    int numRows = 0;
    int numColumns = 0;

    bool active = FALSE;
    QString authors;
    QString childName;
    QString comments;
    QString copyright;
    QString creationFunction;
    bool editable = TRUE;
    QString filename;
    QString focusTarget;
    QString hscrollbarPolicy;
    QString icon;
    int initialChoice = 0;
    QStringList items;
    QString justify;
    QString label;
    QString logoImage;
    int lower = -123456789;
    int page = 10;
    int pageSize = 10;
    QString selectionMode;
    QString shadowType( "GTK_SHADOW_NONE" );
    bool showText = TRUE;
    bool showTitles = TRUE;
    int step = 1;
    QString tabPos;
    QString text;
    int textMaxLength = 0;
    bool textVisible = TRUE;
    QString tooltip;
    QString type;
    int upper = 123456789;
    int value = 123456789;
    bool valueInList = TRUE;
    QString vscrollbarPolicy;
    QString watermarkImage;
    bool wrap = FALSE;

    bool topLevel = yyFormName.isEmpty();
    if ( topLevel )
	name = QString( "Form%1" ).arg( uniqueForm++ );

    QDomNode n = widget.firstChild();
    while ( !n.isNull() ) {
	QString tagName = n.toElement().tagName();
	if ( !tagName.isEmpty() ) {
	    /*
	      Recognize the properties and stores them in variables.
	      This step is a bit silly, and if this function were to
	      be rewritten, almost everything would just be stored, as
	      strings, in a giant map, and looked up for when emitting
	      the properties.
	    */
	    switch ( (uchar) tagName[0].cell() ) {
	    case 'a':
		if ( tagName == QString("active") ) {
		    active = isTrue( getTextValue(n) );
		} else if ( tagName == QString("authors") ) {
		    authors = getTextValue( n );
		}
		break;
	    case 'c':
		if ( tagName == QString("child") ) {
		    QDomNode child = n.firstChild();
		    while ( !child.isNull() ) {
			QString childTagName = child.toElement().tagName();
			if ( childTagName == QString("left_attach") ) {
			    leftAttach = getTextValue( child ).toInt();
			} else if ( childTagName == QString("right_attach") ) {
			    rightAttach = getTextValue( child ).toInt();
			} else if ( childTagName == QString("top_attach") ) {
			    topAttach = getTextValue( child ).toInt();
			} else if ( childTagName == QString("bottom_attach") ) {
			    bottomAttach = getTextValue( child ).toInt();
			}
			child = child.nextSibling();
		    }
		} else if ( tagName == QString("child_name") ) {
		    childName = getTextValue( n );
		} else if ( tagName == QString("class") ) {
		    gtkClass = getTextValue( n );
		} else if ( tagName == QString("climb_rate") ) {
		    step = getTextValue( n ).toInt();
		} else if ( tagName == QString("columns") ) {
		    numColumns = getTextValue( n ).toInt();
		} else if ( tagName == QString("comments") ) {
		    comments = getTextValue( n );
		} else if ( tagName == QString("copyright") ) {
		    copyright = getTextValue( n );
		} else if ( tagName == QString("creation_function") ) {
		    creationFunction = getTextValue( n );
		}
		break;
	    case 'd':
		if ( tagName == QString("default_focus_target") ) {
		    if ( focusTarget.isEmpty() )
			focusTarget = getTextValue( n );
		}
		break;
	    case 'e':
		if ( tagName == QString("editable") )
		    editable = isTrue( getTextValue(n) );
		break;
	    case 'f':
		if ( tagName == QString("filename") ) {
		    filename = getTextValue( n );
		} else if ( tagName == QString("focus_target") ) {
		    focusTarget = getTextValue( n );
		}
		break;
	    case 'h':
		if ( tagName == QString("height") ) {
		    height = getTextValue( n ).toInt();
		} else if ( tagName == QString("hscrollbar_policy") ) {
		    hscrollbarPolicy = getTextValue( n );
		}
		break;
	    case 'i':
		if ( tagName == QString("icon") ) {
		    icon = getTextValue( n );
		} else if ( tagName == QString("initial_choice") ) {
		    initialChoice = getTextValue( n ).toInt();
		} else if ( tagName == QString("items") ) {
		    items = QStringList::split( QChar('\n'), getTextValue(n) );
		}
		break;
	    case 'j':
		if ( tagName == QString("justify") )
		    justify = getTextValue( n );
		break;
	    case 'l':
		if ( tagName == QString("label") ) {
		    label = getTextValue( n );
		} else if ( tagName == QString("logo_image") ) {
		    logoImage = getTextValue( n );
		} else if ( tagName == QString("lower") ) {
		    lower = getTextValue( n ).toInt();
		}
		break;
	    case 'n':
		if ( tagName == QString("name") )
		    name = getTextValue( n );
		break;
	    case 'p':
		if ( tagName == QString("page") ) {
		    page = getTextValue( n ).toInt();
		} else if ( tagName == QString("page_size") ) {
		    pageSize = getTextValue( n ).toInt();
		}
		break;
	    case 'r':
		if ( tagName == QString("rows") )
		    numRows = getTextValue( n ).toInt();
		break;
	    case 's':
		if ( tagName == QString("selection_mode") ) {
		    selectionMode = getTextValue( n );
		} else if ( tagName == QString("shadow_type") ) {
		    shadowType = getTextValue( n );
		} else if ( tagName == QString("show_text") ) {
		    showText = isTrue( getTextValue(n) );
		} else if ( tagName == QString(QString("show_titles")) ) {
		    showTitles = isTrue( getTextValue(n) );
		} else if ( tagName == QString("step") ) {
		    step = getTextValue( n ).toInt();
		} else if ( tagName == QString("stock_button") ) {
		    /*
		      Let's cheat: We convert the symbolic name into a
		      button label.
		    */
		    label = getTextValue( n );
		    int k = label.findRev( QChar('_') );
		    if ( k != -1 )
			label = label.mid( k + 1 );
		    if ( !label.isEmpty() && label != QString("OK") )
			label = label.left( 1 ) + label.mid( 1 ).lower();
		}
		break;
	    case 't':
		if ( tagName == QString("tab_pos") ) {
		    tabPos = getTextValue( n );
		} else if ( tagName == QString("text") ) {
		    text = getTextValue( n );
		} else if ( tagName == QString("textMaxLength") ) {
		    textMaxLength = getTextValue( n ).toInt();
		} else if ( tagName == QString("textVisible") ) {
		    textVisible = isTrue( getTextValue(n) );
		} else if ( tagName == QString("title") ) {
		    title = getTextValue( n );
		} else if ( tagName == QString("tooltip") ) {
		    tooltip = getTextValue( n );
		} else if ( tagName == QString("type") ) {
		    type = getTextValue( n );
		}
		break;
	    case 'u':
		if ( tagName == QString("upper") )
		    upper = getTextValue( n ).toInt();
		break;
	    case 'v':
		if ( tagName == QString("value") ) {
		    value = getTextValue( n ).toInt();
		} else if ( tagName == QString("value_in_list") ) {
		    valueInList = isTrue( getTextValue(n) );
		} else if ( tagName == QString("vscrollbar_policy") ) {
		    vscrollbarPolicy = getTextValue( n );
		}
		break;
	    case 'w':
		if ( tagName == QString("watermark_image") ) {
		    watermarkImage = getTextValue( n );
		} else if ( tagName == QString("widget") )
		    childWidgets.push_back( n.toElement() );
		else if ( tagName == QString("width") )
		    width = getTextValue( n ).toInt();
		else if ( tagName == QString("wrap") )
		    wrap = isTrue( getTextValue(n) );
		break;
	    case 'x':
		if ( tagName == QString("x") )
		    x = getTextValue( n ).toInt();
		break;
	    case 'y':
		if ( tagName == QString("y") )
		    y = getTextValue( n ).toInt();
	    }
	}
	n = n.nextSibling();
    }

    if ( topLevel ) {
	yyFormName = name;
	emitSimpleValue( QString("class"), yyFormName );
    }

    if ( gtkLayoutWidget.exactMatch(gtkClass) ) {
	QString boxKind;
	QString orientation;

	if ( gtkClass.startsWith(QString("GtkH")) ||
	     gtkClass == QString(QString("GtkToolbar")) ) {
	    /*
	      GtkToolbar, right. Toolbars may appear anywhere in a
	      widget, but then they really are just a row of buttons.
	    */
	    boxKind = QString( "hbox" );
	    orientation = QString( "Horizontal" );
	} else if ( gtkClass.startsWith(QString("GtkV")) ||
		    gtkClass == QString("GtkPacker") ) {
	    /*
	      We don't support the GtkPacker, whose trails lead to
	      destruction.
	    */
	    boxKind = QString( "vbox" );
	    orientation = QString( "Vertical" );
	} else {
	    boxKind = QString( "grid" );
	}

	if ( layouted )