uic.cpp

Linux下的基于X11的图形开发环境。

/**********************************************************************
** 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.
**
** 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.
**
** Contact [e-mail] if any conditions of this licensing are
** not clear to you.
**
**********************************************************************/

#include "uic.h"
#include "parser.h"
#include "widgetdatabase.h"
#include "domtool.h"
#include <qfile.h>
#include <qstringlist.h>
#include <qdatetime.h>
#define NO_STATIC_COLORS
#include <globaldefs.h>
#include <qregexp.h>
#include <stdio.h>
#include <stdlib.h>

bool Uic::isMainWindow = FALSE;

QString Uic::getComment( const QDomNode& n )
{
    QDomNode child = n.firstChild();
    while ( !child.isNull() ) {
	if ( child.toElement().tagName() == "comment" )
	    return child.toElement().firstChild().toText().data();
	child = child.nextSibling();
    }
    return QString::null;
}

QString Uic::mkBool( bool b )
{
    return b? "TRUE" : "FALSE";
}

QString Uic::mkBool( const QString& s )
{
    return mkBool( s == "true" || s == "1" );
}

bool Uic::toBool( const QString& s )
{
    return s == "true" || s.toInt() != 0;
}

QString Uic::fixString( const QString &str )
{
    QString s( str );
    s.replace( "\\", "\\\\" );
    s.replace( "\"", "\\\"" );
    s.replace( "\r", "" );
    s.replace( "\n", "\\n\"\n\"" );
    return "\"" + s + "\"";
}

QString Uic::trcall( const QString& sourceText, const QString& comment )
{
    if ( sourceText.isEmpty() && comment.isEmpty() )
	return "QString::null";

    QString t = trmacro;
    if ( t.isNull() ) {
	t = "tr";
	for ( int i = 0; i < (int) sourceText.length(); i++ ) {
	    if ( sourceText[i].unicode() >= 0x80 ) {
		t = "trUtf8";
		break;
	    }
	}
    }

    if ( comment.isEmpty() ) {
	return t + "( " + fixString( sourceText ) + " )";
    } else {
	return t + "( " + fixString( sourceText ) + ", " +
	       fixString( comment ) + " )";
    }
}

QString Uic::mkStdSet( const QString& prop )
{
    return QString( "set" ) + prop[0].upper() + prop.mid(1);
}



/*!
  \class Uic uic.h
  \brief User Interface Compiler

  The class Uic encapsulates the user interface compiler (uic).
 */
Uic::Uic( const QString &fn, const char *outputFn, QTextStream &outStream,
	  QDomDocument doc, bool decl, bool subcl, const QString &trm,
	  const QString& subClass, bool omitForwardDecls )
    : out( outStream ), trout( &languageChangeBody ),
      outputFileName( outputFn ), trmacro( trm ), nofwd( omitForwardDecls )
{
    fileName = fn;
    writeFunctImpl = TRUE;
    defMargin = BOXLAYOUT_DEFAULT_MARGIN;
    defSpacing = BOXLAYOUT_DEFAULT_SPACING;
    externPixmaps = FALSE;
    indent = "    "; // default indent

    item_used = cg_used = pal_used = 0;

    layouts << "hbox" << "vbox" << "grid";
    tags = layouts;
    tags << "widget";

    pixmapLoaderFunction = getPixmapLoaderFunction( doc.firstChild().toElement() );
    nameOfClass = getFormClassName( doc.firstChild().toElement() );

    stdsetdef = toBool( doc.firstChild().toElement().attribute("stdsetdef") );

    if ( doc.firstChild().isNull() || doc.firstChild().firstChild().isNull() )
	return;
    QDomElement e = doc.firstChild().firstChild().toElement();
    QDomElement widget;
    while ( !e.isNull() ) {
	if ( e.tagName() == "widget" ) {
	    widget = e;
	} else if ( e.tagName() == "pixmapinproject" ) {
	    externPixmaps = TRUE;
	} else if ( e.tagName() == "layoutdefaults" ) {
	    defSpacing = e.attribute( "spacing", defSpacing.toString() );
	    defMargin = e.attribute( "margin", defMargin.toString() );
	} else if ( e.tagName() == "layoutfunctions" ) {
	    defSpacing = e.attribute( "spacing", defSpacing.toString() );	    	
	    bool ok;
	    defSpacing.toInt( &ok );
	    if ( !ok ) {
		QString buf = defSpacing.toString();
		defSpacing = buf.append( "()" );
	    }
	    defMargin = e.attribute( "margin", defMargin.toString() );
	    defMargin.toInt( &ok );
	    if ( !ok ) {
		QString buf = defMargin.toString();
		defMargin = buf.append( "()" );
	    }
	}
	e = e.nextSibling().toElement();
    }
    e = widget;

    if ( nameOfClass.isEmpty() )
	nameOfClass = getObjectName( e );
    namespaces = QStringList::split( "::", nameOfClass );
    bareNameOfClass = namespaces.last();
    namespaces.remove( namespaces.fromLast() );

    if ( subcl ) {
	if ( decl )
	    createSubDecl( e, subClass );
	else
	    createSubImpl( e, subClass );
    } else {
	if ( decl )
	    createFormDecl( e );
	else
	    createFormImpl( e );
    }

}

/*! Extracts a pixmap loader function from \a e
 */
QString Uic::getPixmapLoaderFunction( const QDomElement& e )
{
    QDomElement n;
    for ( n = e.firstChild().toElement(); !n.isNull(); n = n.nextSibling().toElement() ) {
	if ( n.tagName() == "pixmapfunction" )
	    return n.firstChild().toText().data();
    }
    return QString::null;
}


/*! Extracts the forms class name from \a e
 */
QString Uic::getFormClassName( const QDomElement& e )
{
    QDomElement n;
    QString cn;
    for ( n = e.firstChild().toElement(); !n.isNull(); n = n.nextSibling().toElement() ) {
	if ( n.tagName() == "class" ) {
	    QString s = n.firstChild().toText().data();
	    int i;
	    while ( ( i = s.find(' ' )) != -1 )
		s[i] = '_';
	    cn = s;
	}
    }
    return cn;
}

/*! Extracts a class name from \a e.
 */
QString Uic::getClassName( const QDomElement& e )
{
    QString s = e.attribute( "class" );
    if ( s.isEmpty() && e.tagName() == "toolbar" )
	s = "QToolBar";
    else if ( s.isEmpty() && e.tagName() == "menubar" )
	s = "QMenuBar";
    return s;
}

/*! Returns TRUE if database framework code is generated, else FALSE.
*/

bool Uic::isFrameworkCodeGenerated( const QDomElement& e )
{
    QDomElement n = getObjectProperty( e, "frameworkCode" );
    if ( n.attribute("name") == "frameworkCode" &&
	 !DomTool::elementToVariant( n.firstChild().toElement(), QVariant( TRUE, 0 ) ).toBool() )
	return FALSE;
    return TRUE;
}

/*! Extracts an object name from \a e. It's stored in the 'name'
 property.
 */
QString Uic::getObjectName( const QDomElement& e )
{
    QDomElement n = getObjectProperty( e, "name" );
    if ( n.firstChild().toElement().tagName() == "cstring" )
	return n.firstChild().toElement().firstChild().toText().data();
    return QString::null;
}

/*! Extracts an layout name from \a e. It's stored in the 'name'
 property of the preceeding sibling (the first child of a QLayoutWidget).
 */
QString Uic::getLayoutName( const QDomElement& e )
{
    QDomElement p = e.parentNode().toElement();
    QString name;

    if ( getClassName(p) != "QLayoutWidget" )
	name = "Layout";

    QDomElement n = getObjectProperty( p, "name" );
    if ( n.firstChild().toElement().tagName() == "cstring" ) {
	name.prepend( n.firstChild().toElement().firstChild().toText().data() );
	return QStringList::split( "::", name ).last();
    }
    return e.tagName();
}


QString Uic::getDatabaseInfo( const QDomElement& e, const QString& tag )
{
    QDomElement n;
    QDomElement n1;
    int child = 0;
    // database info is a stringlist stored in this order
    if ( tag == "connection" )
	child = 0;
    else if ( tag == "table" )
	child = 1;
    else if ( tag == "field" )
	child = 2;
    else
	return QString::null;
    n = getObjectProperty( e, "database" );
    if ( n.firstChild().toElement().tagName() == "stringlist" ) {
	    // find correct stringlist entry
	    QDomElement n1 = n.firstChild().firstChild().toElement();
	    for ( int i = 0; i < child && !n1.isNull(); ++i )
		n1 = n1.nextSibling().toElement();
	    if ( n1.isNull() )
		return QString::null;
	    return n1.firstChild().toText().data();
    }
    return QString::null;
}


void Uic::registerLayouts( const QDomElement &e )
{
    if ( layouts.contains(e.tagName()) )
	createObjectDecl(e);

    QDomNodeList nl = e.childNodes();
    for ( int i = 0; i < (int) nl.length(); ++i )
	registerLayouts( nl.item(i).toElement() );
}


/*!
  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;
}


void Uic::createActionDecl( const QDomElement& e )
{
    QString objClass = e.tagName() == "action" ? "QAction" : "QActionGroup";
    QString objName = getObjectName( e );
    if ( objName.isEmpty() )
	return;
    out << "    " << objClass << "* " << objName << ";" << endl;
    if ( e.tagName() == "actiongroup" ) {
	for ( QDomElement n = e.firstChild().toElement(); !n.isNull(); n = n.nextSibling().toElement() ) {
	    if ( n.tagName() == "action" || n.tagName() == "actiongroup" )
		createActionDecl( n );
	}
    }
}

void Uic::createToolbarDecl( const QDomElement &e )
{
    if ( e.tagName() == "toolbar" )
	out << "    " << "QToolBar *" << getObjectName( e ) << ";" << endl;
}

void Uic::createMenuBarDecl( const QDomElement &e )
{
    if ( e.tagName() == "item" )
	out << "    " << "QPopupMenu *" << e.attribute( "name" ) << ";" << endl;
}