ncreportdesignerresourcehandler.cpp

基于QT的报表工具

/***************************************************************************
 *   Copyright (C) 2006 by Norbert Szabo                                   *
 *   [e-mail]                                                       *
 *                                                                         *
 *   This program is free software; you can redistribute it and/or modify  *
 *   it under the terms of the GNU General Public License as published by  *
 *   the Free Software Foundation; either version 2 of the License, or     *
 *   (at your option) any later version.                                   *
 *                                                                         *
 *   This program is distributed in the hope that it will be useful,       *
 *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
 *   GNU General Public License for more details.                          *
 *                                                                         *
 *   You should have received a copy of the GNU General Public License     *
 *   along with this program; if not, write to the                         *
 *   Free Software Foundation, Inc.,                                       *
 *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
 ***************************************************************************/
#include "ncreportdesignerresourcehandler.h"
#include "ncreportdesignerwidget.h"
#include "ncreportdesignerwidgetfactory.h"
#include "ncreportdesignerdesignarea.h"
#include "ncreportdesignerdocument.h"
#include "measurement.h"
#include "globals.h"

#include <qdom.h>
#include <qwidgetlist.h>
#include <qmessagebox.h>
#include <qlabel.h>
#include <qtextcodec.h>
#include <qdatetime.h>
#include <qobjectlist.h>
#include <qregexp.h>

#ifdef Q_WS_WIN
#define	TRIM_DEFAULT_TEXTWIDTH		1
#define	TRIM_DEFAULT_TEXTHEIGHT		0
#else
#define	TRIM_DEFAULT_TEXTWIDTH		7
#define	TRIM_DEFAULT_TEXTHEIGHT		1
#endif

#define CRLF	"\r\n"

//-------------------------------
// NCReportDesignerResourceHandler
//-------------------------------
NCReportDesignerResourceHandler::NCReportDesignerResourceHandler()
{
	designArea = 0;
	pasteOffset = 0;
}


NCReportDesignerResourceHandler::~NCReportDesignerResourceHandler()
{
}


void NCReportDesignerResourceHandler::setDesignArea( NCReportDesignerDesignArea* da )
{ 
	designArea = da;
}

void NCReportDesignerResourceHandler::setSection( NCReportDesignerSection * se )
{
	section = se;
}


bool NCReportDesignerResourceHandler::load( QIODevice *file )
{
	QDomDocument doc;
	loadErrorMsg = QString::null;
	errorline =0;
	errorcol =0;
#ifdef REPORTDESIGNER_DEBUG
	QTime t;
	t.start();
#endif	

	//QTextStream s( file );
	//QString content = s.read();
	//removeXMLComments( content );
	
	//if ( !doc.setContent( content, &loadErrorMsg, &errorline, &errorcol ) ) {
	if ( !doc.setContent( file, &loadErrorMsg, &errorline, &errorcol ) ) {
		loadErrorMsg = QObject::tr("Parse error in line: %1 column: %2 ").arg(errorline).arg(errorcol)+loadErrorMsg;
		file->close();
		return FALSE;
	}
	file->close();
#ifdef REPORTDESIGNER_DEBUG
	qDebug("File parse time elapsed: %i", t.elapsed() );
#endif	
	//uiFileVersion = doc.firstChild().toElement().attribute("version");
	QDomElement report = doc.documentElement();		// root element
	loadReportOptions( report );
	//qApp->processEvents();
	QDomNode node = report.firstChild();
	while ( !node.isNull() ) {
		if ( node.isElement() && node.nodeName() == "queries" ) {
			QDomElement queries = node.toElement();
			loadQueries( queries );
			break;
		}
		node = node.nextSibling();
	}
#ifdef REPORTDESIGNER_DEBUG
	qDebug("Load queries time: %i", t.elapsed() );
#endif	
	
	//qApp->processEvents();
	node = report.firstChild();
	while ( !node.isNull() ) {
		if ( node.isElement() && node.nodeName() == "variables" ) {
			QDomElement variables = node.toElement();
			loadVariables( variables );
			break;
		}
		node = node.nextSibling();
	}
#ifdef REPORTDESIGNER_DEBUG
	qDebug("Load variables time: %i", t.elapsed() );
#endif	
	//qApp->processEvents();
	node = report.firstChild();
	while ( !node.isNull() ) {
		if ( node.isElement() && node.nodeName() == "pageHeader" ) {
			QDomElement pageheader = node.toElement();
			loadPageHeader( pageheader );
			break;
		}
		node = node.nextSibling();
	}
#ifdef REPORTDESIGNER_DEBUG
	qDebug("Load page header time: %i", t.elapsed() );
#endif	
	node = report.firstChild();
	while ( !node.isNull() ) {
		if ( node.isElement() && node.nodeName() == "detail" ) {
			QDomElement detail = node.toElement();
			loadDetail( detail );
			break;
		}
		node = node.nextSibling();
	}
#ifdef REPORTDESIGNER_DEBUG
	qDebug("Load detail time: %i", t.elapsed() );
#endif	
	node = report.firstChild();
	while ( !node.isNull() ) {
		if ( node.isElement() && node.nodeName() == "pageFooter" ) {
			QDomElement pagefooter = node.toElement();
			loadPageFooter( pagefooter );
			break;
		}
		node = node.nextSibling();
	}
#ifdef REPORTDESIGNER_DEBUG
	qDebug("Load page footer time: %i", t.elapsed() );
#endif	
	node = report.firstChild();
	while ( !node.isNull() ) {
		if ( node.isElement() && node.nodeName() == "groups" ) {
			QDomElement groups = node.toElement();
			loadGroups( groups );
			break;
		}
		node = node.nextSibling();
	}

	//doc.firstChild().toElement().firstChild().toElement();
	
#ifdef REPORTDESIGNER_DEBUG
	qDebug("Total load time elapsed: %i", t.elapsed() );
#endif	
	
	return TRUE;
}

QString NCReportDesignerResourceHandler::lastLoadError( )
{
	return loadErrorMsg;
}

bool NCReportDesignerResourceHandler::loadReportOptions( QDomElement & e )
{
	if ( e.hasAttribute("name") ) document->po.reportName = e.attribute("name");
	if ( e.hasAttribute("pageSize") ) document->po.pageSize = e.attribute("pageSize");
	if ( e.hasAttribute("orientation") ) {
		document->po.orient = ( e.attribute("orientation")=="L" ? ReportPageOptions::Landscape : ReportPageOptions::Portrait);
/*		if ( e.attribute("orientation")=="P" )
			document->po.orient = ReportPageOptions::Portrait;
		else if ( e.attribute("orientation")=="L" )
			document->po.orient = ReportPageOptions::Landscape;
		else
			document->po.orient = ReportPageOptions::Portrait;*/
	}
	if ( e.hasAttribute("pageWidth") ) document->po.pageWidth = e.attribute("pageWidth").toDouble();
	if ( e.hasAttribute("pageHeight") ) document->po.pageHeight = e.attribute("pageHeight").toDouble();
	if ( e.hasAttribute("printerMode") ) document->po.printerMode = e.attribute("printerMode");
	
	if ( e.hasAttribute("topMargin") ) document->po.topMargin = e.attribute("topMargin").toDouble();
	if ( e.hasAttribute("bottomMargin") ) document->po.bottomMargin = e.attribute("bottomMargin").toDouble();
	if ( e.hasAttribute("leftMargin") ) document->po.leftMargin = e.attribute("leftMargin").toDouble();
	if ( e.hasAttribute("rightMargin") ) document->po.rightMargin = e.attribute("rightMargin").toDouble();
	
	if ( e.hasAttribute("defaultFontName") ) document->po.defaultFontName = e.attribute("defaultFontName");
	if ( e.hasAttribute("defaultFontSize") ) document->po.defaultFontSize = e.attribute("defaultFontSize").toInt();
	if ( e.hasAttribute("backColor") ) document->po.backColor = e.attribute("backColor");
	if ( e.hasAttribute("masterAlias") ) document->po.masterAlias = e.attribute("masterAlias");
	if ( e.hasAttribute("encoding") ) document->po.encoding = e.attribute("encoding");

	if ( e.hasAttribute("dataSource") ) document->po.dataSource = ( e.attribute("dataSource").upper()=="TEXT" ? ReportPageOptions::Textfile : ReportPageOptions::Database );
	if ( e.hasAttribute("resourceTextFile") ) document->po.resourceTextFile = e.attribute("resourceTextFile");
	if ( e.hasAttribute("textDataDelimiter") ) document->po.textDataDelimiter = e.attribute("textDataDelimiter");
	if ( e.hasAttribute("textRowFilterRegExp") ) document->po.rowFilterRegExp = e.attribute("textRowFilterRegExp");
	
	return TRUE;
}

bool NCReportDesignerResourceHandler::loadQueries( QDomElement & e )
{
	QDomNode n = e.firstChild();
	QDomElement de;
	while ( !n.isNull() ) {
		if ( n.isElement() && n.nodeName() == "query" ) {
			de = n.toElement();
			ReportQuery q( de.attribute("alias"), de.text() );
			document->addQuery( q );
		}
		n = n.nextSibling();
	}
	
	return TRUE;
}

bool NCReportDesignerResourceHandler::loadVariables( QDomElement & e )
{
	QDomNode n = e.firstChild();
	QDomElement de;
	while ( !n.isNull() ) {
		if ( n.isElement() && n.nodeName() == "variable" ) {
			de = n.toElement();
			ReportVariable v( de.attribute("name"), de.attribute("type"), de.attribute("funcType") );
			v.field = de.text();
			document->addVariable( v );
		}
		n = n.nextSibling();
	}
	return TRUE;
}

bool NCReportDesignerResourceHandler::loadPageHeader( QDomElement & e )
{
	NCReportDesignerSection *s = document->addPageHeader();
	setSection( s );
	setDesignArea( s->designArea() );
	document->setPageSize( s );
	//s->setWidth( 210.0 );
	s->setHeight( e.attribute("height").toDouble() );
	
	return loadSectionWidgets( e );
}

bool NCReportDesignerResourceHandler::loadPageFooter( QDomElement & e )
{
	NCReportDesignerSection *s = document->addPageFooter();
	setSection( s );
	setDesignArea( s->designArea() );
	document->setPageSize( s );
	//s->setWidth( 210.0 );
	s->setHeight( e.attribute("height").toDouble() );
	
	return loadSectionWidgets( e );
}

bool NCReportDesignerResourceHandler::loadDetail( QDomElement & e )
{
	NCReportDesignerSection *s = document->addDetail();
	setSection( s );
	setDesignArea( s->designArea() );
	document->setPageSize( s );
	//s->setWidth( 210.0 );
	s->setHeight( e.attribute("height").toDouble() );
	
	return loadSectionWidgets( e );
}


bool NCReportDesignerResourceHandler::loadGroups( QDomElement & e )
{
	QDomNode n = e.firstChild();
	QDomElement gr;
	bool ok = TRUE;
	while ( !n.isNull() ) {
		if ( n.isElement() && n.nodeName() == "group" ) {
			gr = n.toElement();
			
			ReportGroup group( gr.attribute("name"), gr.attribute("groupExpression"), gr.attribute("resetVariables") );
			document->addGroup( group );	// create whole group
			
			QDomNode n2 = gr.firstChild();
			while ( !n2.isNull() ) {
				if ( n2.isElement() && n2.nodeName() == "groupHeader" ) {
					QDomElement e0 = n2.toElement();
					
					// HEADER SETUP
					setSection( group.header );
					setDesignArea( group.header->designArea() );
					document->setPageSize( group.header );
					group.header->setHeight( e0.attribute("height").toDouble() );
					ok = loadSectionWidgets( e0 );
				}
				if ( ok && n2.isElement() && n2.nodeName() == "groupFooter" ) {
					QDomElement e0 = n2.toElement();
					
					// FOOTER SETUP
					setSection( group.footer );
					setDesignArea( group.footer->designArea() );
					document->setPageSize( group.footer );
					group.footer->setHeight( e0.attribute("height").toDouble() );
					ok = loadSectionWidgets( e0 );
				}
				n2 = n2.nextSibling();
			}
		}
		n = n.nextSibling();
	}	
	
	return ok;
}


bool NCReportDesignerResourceHandler::loadSectionWidgets( QDomElement & e )
{