object.cpp

Trolltech公司发布的基于C++图形开发环境

/**********************************************************************
** Copyright (C) 2000 Trolltech AS.  All rights reserved.
**
** This file is part of Qt Designer.
**
** This file may be distributed and/or modified under the terms of the
** GNU General Public License version 2 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file.
**
** Licensees holding valid Qt Enterprise Edition or Qt Professional Edition
** licenses may use this file in accordance with the Qt Commercial License
** Agreement provided with the Software.
**
** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
**
** See http://www.trolltech.com/gpl/ for GPL licensing information.
** See http://www.trolltech.com/pricing.html or email [e-mail] for
**   information about Qt Commercial License Agreements.
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#include "uic.h"
#include "parser.h"
#include "domtool.h"
#include <qregexp.h>
#include <qsizepolicy.h>
#include <qstringlist.h>
#define NO_STATIC_COLORS
#include <globaldefs.h>
#include "../interfaces/widgetinterface.h"
#include "../shared/widgetdatabase.h"

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

  Children are not traversed 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";
	else if (objClass == "Spacer")
	    objClass = "QSpacerItem";
	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()
 */

static bool createdCentralWidget = FALSE;

QString Uic::createObjectImpl( const QDomElement &e, const QString& parentClass, const QString& par, const QString& layout )
{
    QString parent( par );
    if ( parent == "this" && isMainWindow ) {
	if ( !createdCentralWidget )
	    out << indent << "setCentralWidget( new QWidget( this, \"qt_central_widget\" ) );" << endl;
	createdCentralWidget = TRUE;
	parent = "centralWidget()";
    }
    QDomElement n;
    QString objClass, objName;
    int numItems = 0;
    int numColumns = 0;
    int numRows = 0;

    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 if ( objClass != "QToolBar" && objClass != "QMenuBar" ) {
	// register the object and unify its name
	objName = registerObject( objName );
	out << "    ";
	if ( isTmpObject )
	    out << objClass << "* ";
	out << objName << " = new " << createObjectInstance( objClass, parent, objName ) << ";" << endl;
    }

    if ( objClass == "QAxWidget" ) {
	QString controlId;
	for ( n = e.firstChild().toElement(); !n.isNull(); n = n.nextSibling().toElement() ) {
	    if ( n.tagName() == "property" && n.attribute( "name" ) == "control" ) {
		controlId = n.firstChild().toElement().text();
	    }
	}
	out << "    ";
	out << objName << "->setControl(\"" << controlId << "\");" << endl;
    }

    lastItem = "0";
    // set the properties and insert items
    bool hadFrameShadow = FALSE;
    for ( n = e.firstChild().toElement(); !n.isNull(); n = n.nextSibling().toElement() ) {
	if ( n.tagName() == "property" ) {
	    bool stdset = stdsetdef;
	    if ( n.hasAttribute( "stdset" ) )
		stdset = toBool( n.attribute( "stdset" ) );
	    QString prop = n.attribute( "name" );
	    if ( prop == "database" )
		continue;
	    QString value = setObjectProperty( objClass, objName, prop, n.firstChild().toElement(), stdset );
	    if ( value.isEmpty() )
		continue;
	    if ( prop == "name" )
		continue;
	    if ( isLine && prop == "frameShadow" )
		hadFrameShadow = TRUE;
	    if ( prop == "buddy" && value.startsWith("\"") && value.endsWith("\"") ) {
		buddies << Buddy( objName, value.mid(1, value.length() - 2 ) );
		continue;
	    }
	    if ( isLine && prop == "orientation" ) {
		prop = "frameShape";
		if ( value.right(10) == "Horizontal" )
		    value = "QFrame::HLine";
		else
		    value = "QFrame::VLine";
		if ( !hadFrameShadow ) {
		    prop = "frameStyle";
		    value += " | QFrame::Sunken";
		}
	    }
	    if ( prop == "buttonGroupId" ) {
		if ( parentClass == "QButtonGroup" )
		    out << indent << parent << "->insert( " << objName << ", " << value << " );" << endl;
		continue;
	    }
	    if ( prop == "frameworkCode" )
		continue;
	    if ( objClass == "QMultiLineEdit" &&
		 QRegExp("echoMode|hMargin|maxLength|maxLines|undoEnabled").exactMatch(prop) )
		continue;

	    QString call = objName + "->";
	    if ( stdset ) {
		call += mkStdSet( prop ) + "( ";
	    } else {
		call += "setProperty( \"" + prop + "\", ";
	    }
	    if ( prop == "accel" )
		call += "QKeySequence( " + value + " ) );";
	    else
		call += value + " );";

	    if ( n.firstChild().toElement().tagName() == "string" ||
		 prop == "currentItem" ) {
		trout << indent << call << endl;
	    } else {
		out << indent << call << endl;
	    }
	} else if ( n.tagName() == "item" ) {
	    QString call;
	    QString value;

	    if ( objClass.contains( "ListBox" ) ) {
		call = createListBoxItemImpl( n, objName );
		if ( !call.isEmpty() ) {
		    if ( numItems == 0 )
			trout << indent << objName << "->clear();" << endl;
		    trout << indent << call << endl;
		}
	    } else if ( objClass.contains( "ComboBox" ) ) {
		call = createListBoxItemImpl( n, objName, &value );
		if ( !call.isEmpty() ) {
		    if ( numItems == 0 )
			trout << indent << objName << "->clear();" << endl;
		    trout << indent << call << endl;
		}
	    } else if ( objClass.contains( "IconView" ) ) {
		call = createIconViewItemImpl( n, objName );
		if ( !call.isEmpty() ) {
		    if ( numItems == 0 )
			trout << indent << objName << "->clear();" << endl;
		    trout << indent << call << endl;
		}
	    } else if ( objClass.contains( "ListView" ) ) {
		call = createListViewItemImpl( n, objName, QString::null );
		if ( !call.isEmpty() ) {
		    if ( numItems == 0 )
			trout << indent << objName << "->clear();" << endl;
		    trout << call << endl;
		}
	    }
	    if ( !call.isEmpty() )
		numItems++;
	} else if ( n.tagName() == "column" || n.tagName() == "row" ) {
	    QString call;
	    QString value;

	    if ( objClass.contains( "ListView" ) ) {
		call = createListViewColumnImpl( n, objName, &value );
		if ( !call.isEmpty() ) {
		    out << call;
		    trout << indent << objName << "->header()->setLabel( "
			  << numColumns++ << ", " << value << " );\n";
		}
	    } else if ( objClass ==  "QTable" || objClass == "QDataTable" ) {
		bool isCols = ( n.tagName() == "column" );
		call = createTableRowColumnImpl( n, objName, &value );
		if ( !call.isEmpty() ) {
		    out << call;
		    trout << indent << objName << "->"
			  << ( isCols ? "horizontalHeader" : "verticalHeader" )
			  << "()->setLabel( "
			  << ( isCols ? numColumns++ : numRows++ )
			  << ", " << value << " );\n";
		}
	    }
	}
    }

    // 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 << ", QString::fromLatin1(\"\") );" << endl;
		trout << indent << objName << "->changeTab( " << page << ", "
		      << trcall( label, comment ) << " );" << endl;
	    }
	}
    } else if ( objClass == "QWidgetStack" ) {
	for ( n = e.firstChild().toElement(); !n.isNull(); n = n.nextSibling().toElement() ) {
	    if ( tags.contains( n.tagName()  ) ) {
		QString page = createObjectImpl( n, objClass, objName );
		int id = DomTool::readAttribute( n, "id", "" ).toInt();
		out << indent << objName << "->addWidget( " << page << ", " << id << " );" << endl;
	    }
	}
    } else if ( objClass == "QToolBox" ) {
	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, "label", "", comment ).toString();
		out << indent << objName << "->addItem( " << page << ", QString::fromLatin1(\"\") );" << endl;
		trout << indent << objName << "->setItemLabel( " << objName 
		      << "->indexOf(" << page << "), " << trcall( label, comment ) 
		      << " );" << endl;
	    }
	}
     } else if ( objClass != "QToolBar" && objClass != "QMenuBar" ) { // standard widgets
	 WidgetInterface *iface = 0;
	 widgetManager()->queryInterface( objClass, &iface );
#ifdef QT_CONTAINER_CUSTOM_WIDGETS
	 int id = WidgetDatabase::idFromClassName( objClass );
	 if ( WidgetDatabase::isContainer( id ) && WidgetDatabase::isCustomPluginWidget( id ) && iface ) {
	     QWidgetContainerInterfacePrivate *iface2 = 0;
	     iface->queryInterface( IID_QWidgetContainer, (QUnknownInterface**)&iface2 );
	     if ( iface2 ) {
		 bool supportsPages = iface2->supportsPages( objClass );
		 for ( n = e.firstChild().toElement(); !n.isNull(); n = n.nextSibling().toElement() ) {
		     if ( tags.contains( n.tagName()  ) ) {
			 if ( supportsPages ) {
			     QString page = createObjectImpl( n, objClass, objName );
			     QString comment;
			     QString label = DomTool::readAttribute( n, "label", "", comment ).toString();
			     out << indent << iface2->createCode( objClass, objName, page, label ) << endl;
			 } else {
			     createObjectImpl( n, objClass, objName );
			 }
		     }
		 }
		 iface2->release();
	     }
	     iface->release();
	 } else {
#endif
	     for ( n = e.firstChild().toElement(); !n.isNull(); n = n.nextSibling().toElement() ) {
		 if ( tags.contains( n.tagName() ) )
		     createObjectImpl( n, objClass, objName );
	     }
#ifdef QT_CONTAINER_CUSTOM_WIDGETS
	 }
#endif
     }

    return objName;
}

/*!
  Creates declarations for spacer items that are children of \a e.

  \sa createObjectDecl()
*/

void Uic::createSpacerDecl( const QDomElement &e )
{
    for ( QDomElement n = e.firstChild().toElement();
	  !n.isNull(); n = n.nextSibling().toElement() )
	if ( n.tagName() == "spacer" )
	    out << "    QSpacerItem* " << registerObject(getObjectName(n)) << ";" << endl;
}

/*!
  Creates a set-call for property \a exclusiveProp of the object
  given in \a e.

  If the object does not have this property, the function does nothing.