Initial implementation of XmlUtil. Completed XmlPaperParser.

CMakeLists.txt

@@ -1,6 +1,6 @@
 cmake_minimum_required (VERSION 2.8)
 
-project (glabels-qt)
+project (glabels_qt)
 
 
 set (Package_Name "glabels-qt")

app/CMakeLists.txt

@@ -34,14 +34,17 @@ include (${QT_USE_FILE})
 
 
 include_directories (
+  ${glabels_qt_SOURCE_DIR}
 )
 
 link_directories (
+  ${glabels_qt_SOURCE_DIR}/libglabels
 )
 
 add_executable (glabels-qt ${glabels_sources} ${glabels_moc_sources} ${glabels_qrc_sources})
 
 target_link_libraries (glabels-qt
+  libglabels
   ${QT_LIBRARIES}
 )
 

app/glabels_main.cpp

@@ -22,9 +22,14 @@
 #include <QApplication>
 
 #include "MainWindow.h"
+#include "libglabels/Db.h"
 
+////// TEMPORARY TESTING ////////
+#include "libglabels/XmlPaperParser.h"
+/////////////////////////////////
 
 using namespace gLabels;
+using namespace libglabels;
 
 
 int main( int argc, char **argv )
@@ -35,6 +40,13 @@ int main( int argc, char **argv )
 	QCoreApplication::setOrganizationDomain( "glabels.org" );
 	QCoreApplication::setApplicationName( "glabels-qt" );
 
+	Db::init();
+	////// TEMPORARY TESTING ////////
+	XmlPaperParser parser;
+	parser.readFile( "/usr/local/share/libglabels-3.0/templates/paper-sizes.xml" );
+	Db::printKnownPapers();
+	/////////////////////////////////
+
 	MainWindow mainWin;
 	mainWin.show();
 

libglabels/CMakeLists.txt

@@ -19,6 +19,7 @@ set (libglabels_sources
   Template.cpp
   Db.cpp
   XmlPaperParser.cpp
+  XmlUtil.cpp
 )
 
 set (libglabels_qobject_headers

libglabels/Db.cpp

@@ -26,15 +26,17 @@
 namespace libglabels
 {
 
-	std::list<Paper *>    mPapers;
+	std::list<Paper*>    Db::mPapers;
-	std::list<QString>    mPaperIds;
+	std::list<QString>   Db::mPaperIds;
-	std::list<QString>    mPaperNames;
+	std::list<QString>   Db::mPaperNames;
-	std::list<Category *> mCategories;
+	std::list<Category*> Db::mCategories;
-	std::list<QString>    mCategoryIds;
+	std::list<QString>   Db::mCategoryIds;
-	std::list<QString>    mCategoryNames;
+	std::list<QString>   Db::mCategoryNames;
-	std::list<Vendor *>   mVendors;
+	std::list<Vendor*>   Db::mVendors;
-	std::list<QString>    mVendorNames;
+	std::list<QString>   Db::mVendorNames;
-	std::list<Template *> mTemplates;
+	std::list<Template*> Db::mTemplates;
+
+	QString Db::mEmpty = "";
 
 	Db::Db()
 	{
@@ -44,7 +46,7 @@ namespace libglabels
 
 	void Db::registerPaper( Paper *paper )
 	{
-		if ( lookupPaperFromId( paper->id() ) == NULL )
+		if ( !isPaperIdKnown( paper->id() ) )
 		{
 			mPapers.push_back( paper );
 			mPaperIds.push_back( paper->id() );
@@ -135,10 +137,10 @@ namespace libglabels
 
 	bool Db::isPaperIdKnown( const QString &id )
 	{
-		if ( !id.isNull() && !id.isEmpty() )
+		std::list<Paper*>::const_iterator it;
+		for ( it = mPapers.begin(); it != mPapers.end(); it++ )
 		{
-			const Paper *paper = lookupPaperFromId( id );
+			if ( (*it)->id() == id )
-			if ( paper != NULL )
 			{
 				return true;
 			}
@@ -156,7 +158,7 @@ namespace libglabels
 
 	void Db::registerCategory( Category *category )
 	{
-		if ( lookupCategoryFromId( category->id() ) == NULL )
+		if ( !isCategoryIdKnown( category->id() ) )
 		{
 			mCategories.push_back( category );
 			mCategoryIds.push_back( category->id() );
@@ -247,10 +249,10 @@ namespace libglabels
 
 	bool Db::isCategoryIdKnown( const QString &id )
 	{
-		if ( !id.isNull() && !id.isEmpty() )
+		std::list<Category*>::const_iterator it;
+		for ( it = mCategories.begin(); it != mCategories.end(); it++ )
 		{
-			const Category *category = lookupCategoryFromId( id );
+			if ( (*it)->id() == id )
-			if ( category != NULL )
 			{
 				return true;
 			}
@@ -262,7 +264,7 @@ namespace libglabels
 
 	void Db::registerVendor( Vendor *vendor )
 	{
-		if ( lookupVendorFromName( vendor->name() ) == NULL )
+		if ( !isVendorNameKnown( vendor->name() ) )
 		{
 			mVendors.push_back( vendor );
 			mVendorNames.push_back( vendor->name() );
@@ -314,10 +316,10 @@ namespace libglabels
 
 	bool Db::isVendorNameKnown( const QString &name )
 	{
-		if ( !name.isNull() && !name.isEmpty() )
+		std::list<Vendor*>::const_iterator it;
+		for ( it = mVendors.begin(); it != mVendors.end(); it++ )
 		{
-			const Vendor *vendor = lookupVendorFromName( name );
+			if ( (*it)->name() == name )
-			if ( vendor != NULL )
 			{
 				return true;
 			}
@@ -329,7 +331,7 @@ namespace libglabels
 
 	void Db::registerTemplate( Template *tmplate )
 	{
-		if ( lookupTemplateFromName( tmplate->name() ) == NULL )
+		if ( !isTemplateKnown( tmplate->brand(), tmplate->part() ) )
 		{
 			mTemplates.push_back( tmplate );
 		}
@@ -386,10 +388,10 @@ namespace libglabels
 
 	bool Db::isTemplateKnown( const QString &brand, const QString &part )
 	{
-		if ( !brand.isNull() && !brand.isEmpty() && !part.isNull() && part.isEmpty() )
+		std::list<Template*>::const_iterator it;
+		for ( it = mTemplates.begin(); it != mTemplates.end(); it++ )
 		{
-			const Template *tmplate = lookupTemplateFromBrandPart( brand, part );
+			if ( ((*it)->brand() == brand) && ((*it)->part() == part) )
-			if ( tmplate != NULL )
 			{
 				return true;
 			}
@@ -426,12 +428,13 @@ namespace libglabels
 		{
 			Paper *paper = *it;
 
-			std::cout << "paper " <<
+			std::cout << "paper "
-				"id='"    << paper->id().toStdString()   << "', " <<
+				  << "id='"      << qPrintable(paper->id())      << "', "
-				"name='"  << paper->name().toStdString() << "', " <<
+				  << "name='"    << qPrintable(paper->name())    << "', "
-				"width="  << paper->width()              << "pts, " <<
+				  << "width="    << paper->width()               << "pts, "
-				"height=" << paper->height()             << "pts" <<
+				  << "height="   << paper->height()              << "pts, "
-				std::endl;
+				  << "pwg_size=" << qPrintable(paper->pwgSize())
+				  << std::endl;
 		}
 
 		std::cout << std::endl;
@@ -447,10 +450,10 @@ namespace libglabels
 		{
 			Category *category = *it;
 
-			std::cout << "category " <<
+			std::cout << "category "
-				"id='"    << category->id().toStdString()   << "', " <<
+				  << "id='"    << category->id().toStdString()   << "', "
-				"name='"  << category->name().toStdString() << "', " <<
+				  << "name='"  << category->name().toStdString() << "', "
-				std::endl;
+				  << std::endl;
 		}
 
 		std::cout << std::endl;
@@ -466,10 +469,10 @@ namespace libglabels
 		{
 			Vendor *vendor = *it;
 
-			std::cout << "vendor " <<
+			std::cout << "vendor "
-				"name='" << vendor->name().toStdString() << "', " <<
+				  << "name='" << vendor->name().toStdString() << "', "
-				"url='"  << vendor->url().toStdString()  << "'" <<
+				  << "url='"  << vendor->url().toStdString()  << "'"
-				std::endl;
+				  << std::endl;
 		}
 
 		std::cout << std::endl;
@@ -485,11 +488,11 @@ namespace libglabels
 		{
 			Template *tmplate = *it;
 
-			std::cout << "template " <<
+			std::cout << "template "
-				"brand='"       << tmplate->brand().toStdString()       << "', " <<
+				  << "brand='"       << tmplate->brand().toStdString()       << "', "
-				"part='"        << tmplate->part().toStdString()        << "', " <<
+				  << "part='"        << tmplate->part().toStdString()        << "', "
-				"description='" << tmplate->description().toStdString() << "'" <<
+				  << "description='" << tmplate->description().toStdString() << "'"
-				std::endl;
+				  << std::endl;
 		}
 
 		std::cout << std::endl;

libglabels/Db.h

@@ -22,7 +22,7 @@
 #define libglabels_Db_h
 
 
-#include <QObject>
+#include <QCoreApplication>
 #include <QString>
 
 #include "Paper.h"
@@ -34,20 +34,16 @@
 namespace libglabels
 {
 
-	class Db : public QObject
+	class Db
 	{
-		Q_OBJECT
+		Q_DECLARE_TR_FUNCTIONS(Db)
-
-
-	signals:
-		static void changed();
-
 
 	private:
 		Db();
 
 
 	public:
+		static void init() { instance(); }
 		static Db *instance() { static Db *db = new Db(); return db; }
 
 		static void registerPaper( Paper *paper );

libglabels/Units.cpp

@@ -36,7 +36,7 @@ namespace
 namespace libglabels
 {
 
-	Units *Units::from_id( const QString &id )
+	Units *Units::fromId( const QString &id )
 	{
 		if ( id == "pt" )
 		{
@@ -137,4 +137,9 @@ namespace libglabels
 	}
 
 
+	bool Units::isIdValid( QString id )
+	{
+		return ( (id == "pt") || (id == "in") || (id == "mm") || (id == "cm") || (id == "pc") || (id == "") );
+	}
+
 }

libglabels/Units.h

@@ -53,7 +53,7 @@ namespace libglabels
 		inline double unitsPerPoint() const { return mUnitsPerPoint; }
 
 
-		static Units *from_id( const QString &id );
+		static Units *fromId( const QString &id );
 
 		static Units *point();
 
@@ -65,6 +65,8 @@ namespace libglabels
 
 		static Units *pica();
 
+		static bool isIdValid( QString id );
+
 
 	private:
 		QString mId;

libglabels/XmlPaperParser.cpp

@@ -74,8 +74,7 @@ namespace libglabels
 
 	void XmlPaperParser::parseRootNode( const QDomElement &node )
 	{
-		QDomNode child = node;
+		for ( QDomNode child = node.firstChild(); !child.isNull(); child = child.nextSibling() )
-		while ( !child.isNull() )
 		{
 			if ( child.toElement().tagName() == "Paper-size" )
 			{
@@ -93,13 +92,13 @@ namespace libglabels
 
 	void XmlPaperParser::parsePaperSizeNode( const QDomElement &node )
 	{
-		QString id      = XmlUtil::getAttrString( node, "id", "" );
+		QString id      = XmlUtil::getAttr( node, "id", "" );
-		QString name    = XmlUtil::getAttrStringI18n( node, "name", "" );
+		QString name    = XmlUtil::getAttrI18n( node, "name", "" );
 
 		double  width   = XmlUtil::getAttrLength( node, "width", 0 );
 		double  height  = XmlUtil::getAttrLength( node, "height", 0 );
 
-		QString pwgSize = XmlUtil::getAttrString( node, "pwg_size", "" );
+		QString pwgSize = XmlUtil::getAttr( node, "pwg_size", "" );
 
 		Paper *paper = new Paper( id, name, width, height, pwgSize );
 		if ( paper != NULL )

libglabels/XmlUtil.cpp

@@ -0,0 +1,229 @@
+/*  XmlUtil.cpp
+ *
+ *  Copyright (C) 2013  Jim Evins <evins@snaught.com>
+ *
+ *  This file is part of gLabels-qt.
+ *
+ *  gLabels-qt 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 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  gLabels-qt 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 gLabels-qt.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "XmlUtil.h"
+
+#include <QTextStream>
+#include <iostream>
+
+
+namespace libglabels
+{
+
+	Units *XmlUtil::mDefaultUnits;
+
+
+	QString  XmlUtil::getAttr( const QDomElement &node, const QString &name, const char *default_value )
+	{
+		return node.attribute( name, QString(default_value) );
+	}
+
+
+	QString  XmlUtil::getAttr( const QDomElement &node, const QString &name, const QString &default_value )
+	{
+		return node.attribute( name, default_value );
+	}
+
+
+	double   XmlUtil::getAttr( const QDomElement &node, const QString &name, double default_value )
+	{
+		QString valueString = node.attribute( name, "" );
+		if ( valueString != "" )
+		{
+			bool ok;
+			double value = valueString.toDouble( &ok );
+
+			if ( !ok )
+			{
+				std::cerr << "Error: bad double value in attribute "
+					  << qPrintable( node.tagName() ) << ":" << qPrintable( name )
+					  << " : '" << qPrintable( valueString ) << "'"
+					  << std:: endl;
+				return default_value;
+			}
+
+			return value;
+		}
+
+		return default_value;
+	}
+
+
+	bool     XmlUtil::getAttr( const QDomElement &node, const QString &name, bool default_value )
+	{
+		QString valueString = node.attribute( name, "" );
+		if ( valueString != "" )
+		{
+			int intValue = valueString.toInt();
+
+			if ( (valueString == "True") ||
+			     (valueString == "TRUE") ||
+			     (valueString == "true") ||
+			     (intValue == 1) )
+			{
+				return true;
+			}
+
+			if ( (valueString == "False") ||
+			     (valueString == "FALSE") ||
+			     (valueString == "false") ||
+			     (intValue == 0) )
+			{
+				return false;
+			}
+
+			std::cerr << "Error: bad boolean value in attribute "
+				  << qPrintable( node.tagName() ) << ":" << qPrintable( name )
+				  << " : '" << qPrintable( valueString ) << "'"
+				  << std:: endl;
+			return default_value;
+		}
+
+		return default_value;
+	}
+
+
+	int      XmlUtil::getAttr( const QDomElement &node, const QString &name, int default_value )
+	{
+		QString valueString = node.attribute( name, "" );
+		if ( valueString != "" )
+		{
+			bool ok;
+			int value = valueString.toInt( &ok );
+
+			if ( !ok )
+			{
+				std::cerr << "Error: bad integer value in attribute "
+					  << qPrintable( node.tagName() ) << ":" << qPrintable( name )
+					  << " : '" << qPrintable( valueString ) << "'"
+					  << std:: endl;
+				return default_value;
+			}
+
+			return value;
+		}
+
+		return default_value;
+	}
+
+
+	uint32_t XmlUtil::getAttr( const QDomElement &node, const QString &name, uint32_t default_value )
+	{
+		QString valueString = node.attribute( name, "" );
+		if ( valueString != "" )
+		{
+			// TODO: Does base-0 do what we want?  I.e. use base determined by format e.g. "0xff"
+			bool ok;
+			uint32_t value = valueString.toInt( &ok, 0 );
+
+			if ( !ok )
+			{
+				std::cerr << "Error: bad unsigned integer value in attribute "
+					  << qPrintable( node.tagName() ) << ":" << qPrintable( name )
+					  << " : '" << qPrintable( valueString ) << "'"
+					  << std:: endl;
+				return default_value;
+			}
+
+			return value;
+		}
+
+		return default_value;
+	}
+
+
+	QString  XmlUtil::getAttrI18n( const QDomElement &node, const QString &name, const QString &default_value )
+	{
+		// TODO: are translations done in a compatable way, so that we can use "_name" attributes?
+		return node.attribute( QString("_").append(name), default_value );
+	}
+
+
+	double   XmlUtil::getAttrLength( const QDomElement &node, const QString &name, double default_value )
+	{
+		QString valueString = node.attribute( name, "" );
+		if ( valueString != "" )
+		{
+			double value;
+			QString unitsString;
+			QTextStream valueStream( &valueString, QIODevice::ReadOnly );
+
+			valueStream >> value >> unitsString;
+
+			if ( !Units::isIdValid( unitsString ) )
+			{
+				std::cerr << "Error: bad length value in attribute "
+					  << qPrintable( node.tagName() ) << ":" << qPrintable( name )
+					  << " : '" << qPrintable( valueString ) << "'"
+					  << std:: endl;
+				return default_value;
+			}
+
+			Units *units = Units::fromId( unitsString );
+
+			return value * units->pointsPerUnit();
+		}
+
+		return default_value;
+	}
+
+
+	void     XmlUtil::setAttr( const QDomElement &node, const QString &name, const char *value )
+	{
+		// TODO
+	}
+
+
+	void     XmlUtil::setAttr( const QDomElement &node, const QString &name, const QString &value )
+	{
+		// TODO
+	}
+
+
+	void     XmlUtil::setAttr( const QDomElement &node, const QString &name, double value )
+	{
+		// TODO
+	}
+
+
+	void     XmlUtil::setAttr( const QDomElement &node, const QString &name, bool value )
+	{
+		// TODO
+	}
+
+
+	void     XmlUtil::setAttr( const QDomElement &node, const QString &name, int value )
+	{
+		// TODO
+	}
+
+
+	void     XmlUtil::setAttr( const QDomElement &node, const QString &name, uint32_t value )
+	{
+		// TODO
+	}
+
+
+	void     XmlUtil::setAttrLength( const QDomElement &node, const QString &name, double value )
+	{
+		// TODO
+	}
+
+}

libglabels/XmlUtil.h

@@ -23,6 +23,7 @@
 
 #include <QString>
 #include <QDomElement>
+#include <stdint.h>
 
 #include "Units.h"
 
@@ -38,16 +39,34 @@ namespace libglabels
 			mDefaultUnits = Units::point();
 		}
 
+	public:
+
 		static void init()
 		{
 			static XmlUtil *xmlUtil = new XmlUtil();
 		}
 
-	public:
+		static const Units *defaultUnits() { return mDefaultUnits; }
+		static void setDefaultUnits( Units *defaultUnits ) { mDefaultUnits = defaultUnits; }
 
-		static QString getAttrString( const QDomElement &node, const QString &name, const QString &default_val );
+		static QString  getAttr( const QDomElement &node, const QString &name, const char *default_value );
-		static QString getAttrStringI18n( const QDomElement &node, const QString &name, const QString &default_val );
+		static QString  getAttr( const QDomElement &node, const QString &name, const QString &default_value );
-		static double   getAttrLength( const QDomElement &node, const QString &name, double default_val );
+		static double   getAttr( const QDomElement &node, const QString &name, double default_value );
+		static bool     getAttr( const QDomElement &node, const QString &name, bool default_value );
+		static int      getAttr( const QDomElement &node, const QString &name, int default_value );
+		static uint32_t getAttr( const QDomElement &node, const QString &name, uint32_t default_value );
+
+		static QString  getAttrI18n( const QDomElement &node, const QString &name, const QString &default_value );
+		static double   getAttrLength( const QDomElement &node, const QString &name, double default_value );
+
+		static void     setAttr( const QDomElement &node, const QString &name, const char *value );
+		static void     setAttr( const QDomElement &node, const QString &name, const QString &value );
+		static void     setAttr( const QDomElement &node, const QString &name, double value );
+		static void     setAttr( const QDomElement &node, const QString &name, bool value );
+		static void     setAttr( const QDomElement &node, const QString &name, int value );
+		static void     setAttr( const QDomElement &node, const QString &name, uint32_t value );
+
+		static void     setAttrLength( const QDomElement &node, const QString &name, double value );
 
 	private:
 		static Units *mDefaultUnits;