form.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 <qstringlist.h>
#include <qvaluelist.h>
#include <qfile.h>
#include <qfileinfo.h>
#include <qdir.h>
#include <qregexp.h>
#define NO_STATIC_COLORS
#include <globaldefs.h>

static QByteArray unzipXPM( QString data, ulong& length )
{
    const int lengthOffset = 4;
    int baSize = data.length() / 2 + lengthOffset;
    uchar *ba = new uchar[ baSize ];
    for ( int i = lengthOffset; i < baSize; ++i ) {
	char h = data[ 2 * (i-lengthOffset) ].latin1();
	char l = data[ 2 * (i-lengthOffset) + 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;
    }
    // qUncompress() expects the first 4 bytes to be the expected length of the
    // uncompressed data
    ba[0] = ( length & 0xff000000 ) >> 24;
    ba[1] = ( length & 0x00ff0000 ) >> 16;
    ba[2] = ( length & 0x0000ff00 ) >> 8;
    ba[3] = ( length & 0x000000ff );
    QByteArray baunzip = qUncompress( ba, baSize );
    delete[] ba;
    return baunzip;
}

#if QT_VERSION >= 0x030900
#error Add this functionality to QDir (relativePathTo() maybe?) and \
remove it from here and from moc
#endif

QCString combinePath( const char *infile, const char *outfile )
{
    QFileInfo inFileInfo( QDir::current(), QFile::decodeName(infile) );
    QFileInfo outFileInfo( QDir::current(), QFile::decodeName(outfile) );
    int numCommonComponents = 0;

    QStringList inSplitted =
	QStringList::split( '/', inFileInfo.dir().canonicalPath(), TRUE );
    QStringList outSplitted =
	QStringList::split( '/', outFileInfo.dir().canonicalPath(), TRUE );

    while ( !inSplitted.isEmpty() && !outSplitted.isEmpty() &&
	    inSplitted.first() == outSplitted.first() ) {
	inSplitted.remove( inSplitted.begin() );
	outSplitted.remove( outSplitted.begin() );
	numCommonComponents++;
    }

    if ( numCommonComponents < 2 ) {
	/*
	  The paths don't have the same drive, or they don't have the
	  same root directory. Use an absolute path.
	*/
	return QFile::encodeName( inFileInfo.absFilePath() );
    } else {
	/*
	  The paths have something in common. Use a path relative to
	  the output file.
	*/
	while ( !outSplitted.isEmpty() ) {
	    outSplitted.remove( outSplitted.begin() );
	    inSplitted.prepend( ".." );
	}
	inSplitted.append( inFileInfo.fileName() );
	return QFile::encodeName( inSplitted.join("/") );
    }
}

/*!
  Creates a declaration (header file) for the form given in \a e

  \sa createFormImpl(), createObjectDecl()
*/
void Uic::createFormDecl( const QDomElement &e )
{
    QDomElement n;
    QDomNodeList nl;
    int i;
    QString objClass = getClassName( e );
    if ( objClass.isEmpty() )
	return;
    QString objName = getObjectName( e );

    QStringList typeDefs;

    QMap<QString, CustomInclude> customWidgetIncludes;

    QString imageMembers;

    // at first the images
    QMap<QString, int> customWidgets;
    QStringList forwardDecl;
    QStringList forwardDecl2;
    QString exportMacro;
    for ( n = e; !n.isNull(); n = n.nextSibling().toElement() ) {
	if ( n.tagName() == "images" ) {
	    nl = n.elementsByTagName( "image" );
	    for ( i = 0; i < (int) nl.length(); i++ ) {
		QString img = registerObject( nl.item(i).toElement().attribute("name") );
		registerObject( img );
		imageMembers += QString( "    QPixmap %1;\n" ).arg( img );
	    }
	} else if ( n.tagName() == "customwidgets" ) {
	    QDomElement n2 = n.firstChild().toElement();
	    while ( !n2.isNull() ) {
		if ( n2.tagName() == "customwidget" ) {
		    QDomElement n3 = n2.firstChild().toElement();
		    QString cl;
		    WidgetDatabaseRecord *r = new WidgetDatabaseRecord;
		    while ( !n3.isNull() ) {
			if ( n3.tagName() == "class" ) {
			    cl = n3.firstChild().toText().data();
			    if ( !nofwd )
				forwardDecl << cl;
			    customWidgets.insert( cl, 0 );
			    r->name = cl;
			} else if ( n3.tagName() == "header" ) {
			    CustomInclude ci;
			    ci.header = n3.firstChild().toText().data();
			    ci.location = n3.attribute( "location", "global" );
			    r->includeFile = ci.header;
			    customWidgetIncludes.insert( cl, ci );
			}
			WidgetDatabase::append( r );
			n3 = n3.nextSibling().toElement();
		    }
		}
		n2 = n2.nextSibling().toElement();
	    }
	}
    }

    // register the object and unify its name
    objName = registerObject( objName );
    QString protector = objName.upper() + "_H";
    protector.replace( "::", "_" );
    out << "#ifndef " << protector << endl;
    out << "#define " << protector << endl;
    out << endl;
    out << "#include <qvariant.h>" << endl; // for broken HP-UX compilers

    if ( !imageMembers.isEmpty() )
	out << "#include <qpixmap.h>" << endl;

    QStringList globalIncludes, localIncludes;
    int wid = WidgetDatabase::idFromClassName( objClass );
    {
	QMap<QString, CustomInclude>::Iterator it = customWidgetIncludes.find( objClass );
	if ( it != customWidgetIncludes.end() ) {
	    if ( ( *it ).location == "global" )
		globalIncludes += (*it).header;
	    else
		localIncludes += (*it).header;
	} else {
	    globalIncludes += WidgetDatabase::includeFile( wid );
	}
    }

    nl = e.parentNode().toElement().elementsByTagName( "include" );
    for ( i = 0; i < (int) nl.length(); i++ ) {
	QDomElement n2 = nl.item(i).toElement();
	QString s = n2.firstChild().toText().data();
	if ( n2.attribute( "impldecl", "in implementation" ) == "in declaration" &&
	     n2.attribute( "location" ) != "local" ) {
	    if ( s.right( 5 ) == ".ui.h" )
		continue;
	    globalIncludes += s;
	}
    }
    for ( i = 0; i < (int) nl.length(); i++ ) {
	QDomElement n2 = nl.item(i).toElement();
	QString s = n2.firstChild().toText().data();
	if ( n2.attribute( "impldecl", "in implementation" ) == "in declaration" &&
	     n2.attribute( "location" ) == "local" &&!globalIncludes.contains( s ) ) {
	    if ( s.right( 5 ) == ".ui.h" )
		continue;
	    localIncludes += s;
	}
    }

    QStringList::Iterator it;

    globalIncludes = unique( globalIncludes );
    for ( it = globalIncludes.begin(); it != globalIncludes.end(); ++it ) {
	if ( !(*it).isEmpty() )
	    out << "#include <" << *it << ">" << endl;
    }
    localIncludes = unique( localIncludes );
    for ( it = localIncludes.begin(); it != localIncludes.end(); ++it ) {
	if ( !(*it).isEmpty() )
	    out << "#include \"" << *it << "\"" << endl;
    }
    out << endl;

    // forward declarations for child widgets and layouts
    out << "class QVBoxLayout;" << endl;
    out << "class QHBoxLayout;" << endl;
    out << "class QGridLayout;" << endl;
    if ( objClass == "QMainWindow" ) {
	out << "class QAction;" << endl;
	out << "class QActionGroup;" << endl;
	out << "class QToolBar;" << endl;
	out << "class QPopupMenu;" << endl;
    }

    bool dbForm = FALSE;
    registerDatabases( e );
    dbConnections = unique( dbConnections );
    if ( dbConnections.count() )
	forwardDecl += "QSqlDatabase";
    if ( dbCursors.count() )
	forwardDecl += "QSqlCursor";
    if ( dbForms[ "(default)" ].count() )
	dbForm = TRUE;
    bool subDbForms = FALSE;
    for ( it = dbConnections.begin(); it != dbConnections.end(); ++it ) {
	if ( !(*it).isEmpty() && (*it) != "(default)" ) {
	    if ( dbForms[ (*it) ].count() ) {
		subDbForms = TRUE;
		break;
	    }
	}
    }
    if ( dbForm || subDbForms )
	forwardDecl += "QSqlForm";

    for ( it = tags.begin(); it != tags.end(); ++it ) {
	nl = e.parentNode().toElement().elementsByTagName( *it );
	for ( i = 1; i < (int) nl.length(); i++ ) { // begin at 1, 0 is the toplevel widget
	    QString s = getClassName( nl.item(i).toElement() );
	    if ( s == "QLayoutWidget" )
		continue; // hide qlayoutwidgets
	    if ( s == "Line" )
		s = "QFrame";
	    if ( !(nofwd && customWidgets.contains(s)) )
		forwardDecl += s;
	    if ( s.mid( 1 ) == "ListBox" || s.mid( 1 ) == "ListView" || s.mid( 1 ) == "IconView" )
		forwardDecl += "Q" + s.mid( 1 ) + "Item";
	    if ( s == "QDataTable" ) { // other convenience classes which are used in QDataTable signals, and thus should be forward-declared by uic for us
		forwardDecl += "QSqlRecord";
	    }
	}
    }

    // some typedefs, maybe
    typeDefs = unique( typeDefs );
    for ( it = typeDefs.begin(); it != typeDefs.end(); ++it ) {
	if ( !(*it).isEmpty() )
	    out << "typedef " << *it << ";" << endl;
    }

    nl = e.parentNode().toElement().elementsByTagName( "forward" );
    for ( i = 0; i < (int) nl.length(); i++ )
	forwardDecl2 << nl.item(i).toElement().firstChild().toText().data();

    nl = e.parentNode().toElement().elementsByTagName( "include" );
    for ( i = 0; i < (int) nl.length(); i++ ) {
	QDomElement n2 = nl.item(i).toElement();
	QString s = n2.firstChild().toText().data();
	if ( n2.attribute( "impldecl", "in implementation" ) == "in declaration" &&
	     n2.attribute( "location" ) != "local" )
	    globalIncludes += s;
    }
    for ( i = 0; i < (int) nl.length(); i++ ) {
	QDomElement n2 = nl.item(i).toElement();
	QString s = n2.firstChild().toText().data();
	if ( n2.attribute( "impldecl", "in implementation" ) == "in declaration" &&
	     n2.attribute( "location" ) == "local" &&!globalIncludes.contains( s ) )
	    localIncludes += s;
    }
    nl = e.parentNode().toElement().elementsByTagName( "exportmacro" );
    if ( nl.length() == 1 )
	exportMacro = nl.item( 0 ).firstChild().toText().data();

    forwardDecl = unique( forwardDecl );
    for ( it = forwardDecl.begin(); it != forwardDecl.end(); ++it ) {
	if ( !(*it).isEmpty() && (*it) != objClass ) {
	    QString forwardName = *it;
	    QStringList forwardNamespaces = QStringList::split( "::",
								forwardName );
	    forwardName = forwardNamespaces.last();
	    forwardNamespaces.remove( forwardNamespaces.fromLast() );

	    QStringList::ConstIterator ns = forwardNamespaces.begin();
	    while ( ns != forwardNamespaces.end() ) {
		out << "namespace " << *ns << " {" << endl;
		++ns;
	    }
	    out << "class " << forwardName << ";" << endl;
	    for ( int i = 0; i < (int) forwardNamespaces.count(); i++ )
		out << "}" << endl;
	}
    }

    for ( it = forwardDecl2.begin(); it != forwardDecl2.end(); ++it ) {
	QString fd = *it;
	fd = fd.stripWhiteSpace();
	if ( !fd.endsWith( ";" ) )
	    fd += ";";
	out << fd << endl;
    }

    out << endl;

    QStringList::ConstIterator ns = namespaces.begin();
    while ( ns != namespaces.end() ) {
	out << "namespace " << *ns << " {" << endl;
	++ns;
    }

    out << "class ";
    if ( !exportMacro.isEmpty() )
	out << exportMacro << " ";
    out << bareNameOfClass << " : public " << objClass << endl << "{" << endl;