Seth/sethLabels
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases 1 Wiki Activity

Initial implementation of GNU Barcode backend.

Browse Source
This commit is contained in:
Jim Evins
2017-05-29 20:43:10 -04:00
parent 52edeaff83
commit e0992db6b6
10 changed files with 517 additions and 27 deletions
Download Patch File Download Diff File Expand all files Collapse all files
glabels/BarcodeBackends.cpp
+13
View File
@@ -22,6 +22,7 @@
#include "glbarcode/Factory.h"
#include "BarcodeBackends/GnuBarcode.h"
#include "BarcodeBackends/QrEncode.h"
@@ -72,6 +73,18 @@ namespace glabels
registerStyle( "datamatrix", "", tr("IEC16022 (DataMatrix)"),
false, false, true, false, "1234567890AB", false, 12 );
#if HAVE_GNU_BARCODE
//
// Libqrencode backend
//
registerBackend( "gnu-barcode", "GNU Barcode" );
glbarcode::Factory::registerType( "gnu-barcode::ean", GnuBarcode::Ean::create );
registerStyle( "ean", "gnu-barcode", tr("EAN (any)"),
true, true, true, false, "000000000000 00000", false, 17 );
#endif // HAVE_GNU_BARCODE
#if HAVE_QRENCODE
//
// Libqrencode backend
glabels/BarcodeBackends/CMakeLists.txt
+1
View File
@@ -2,6 +2,7 @@
# Sources
#=======================================
set (barcode_sources
GnuBarcode.cpp
QrEncode.cpp
)
glabels/BarcodeBackends/GnuBarcode.cpp
+374
View File
@@ -0,0 +1,374 @@
/* GnuBarcode.cpp
*
* Copyright (C) 2017 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/>.
*/
#if HAVE_GNU_BARCODE
#include "GnuBarcode.h"
#include <QtDebug>
#include <barcode.h>
#include <cctype>
namespace
{
const double INK_BLEED = 0.1; /* Shrink bars to account for ink bleed. */
const double FONT_SCALE = 0.75; /* Shrink font slightly, otherwise too crowded. */
}
namespace glabels
{
namespace GnuBarcode
{
bool Base::isAscii( const std::string& data ) const
{
for ( unsigned int i = 0; i < data.size(); i++ )
{
if ( (data[i] & 0x80) != 0 )
{
return false;
}
}
return true;
}
bool Base::isNumericLengthValid( const std::string& data,
unsigned int nMin,
unsigned int nMax ) const
{
unsigned int n = 0;
for ( unsigned int i = 0; i < data.size(); i++ )
{
if ( (data[i] & 0x80) == 0 )
{
n++;
}
else
{
return false;
}
}
return (n >= nMin) && (n <= nMax);
}
bool Base::isNumericLength1Valid( const std::string& data,
unsigned int nMin,
unsigned int nMax ) const
{
unsigned int n = 0;
for ( unsigned int i = 0; !isspace(data[i]) && (i < data.size()); i++ )
{
if ( isdigit(data[i]) )
{
n++;
}
else if ( !isspace(data[i]) )
{
return false;
}
}
return (n >= nMin) && (n <= nMax);
}
bool Base::isNumericLength2Valid( const std::string& data,
unsigned int nMin,
unsigned int nMax ) const
{
unsigned int i;
unsigned int n = 0;
for ( i = 0; !isspace(data[i]) && (i < data.size()); i++ )
{
/* Skip over 1st string */
}
for ( i++ /* skip space */ ; i < data.size(); i++ )
{
if ( isdigit(data[i]) )
{
n++;
}
else
{
return false;
}
}
return (n >= nMin) && (n <= nMax);
}
void Base::vectorize( const std::string& encodedData,
const std::string& displayText,
const std::string& cookedData,
double& w,
double& h )
{
/*
* First encode using GNU Barcode library.
*/
Barcode_Item* bci = Barcode_Create( (char*)cookedData.c_str() );
bci->scalef = 0;
bci->width = (int)w;
bci->height = (int)h;
bci->flags = flags;
if ( !showText() )
{
bci->flags |= BARCODE_NO_ASCII;
}
if ( !checksum() )
{
bci->flags |= BARCODE_NO_CHECKSUM;
}
Barcode_Encode( bci, flags );
if ( (bci->partial == nullptr) || (bci->textinfo == nullptr) )
{
Barcode_Delete( bci );
setIsDataValid( false );
return;
}
/*
* Now do the actual vectorization.
*
* This code is based on the postscript renderer (ps.c) from the GNU barcode library:
*
* Copyright (C) 1999 Alessaandro Rubini (rubini@gnu.org)
* Copyright (C) 1999 Prosa Srl. (prosa@prosa.it)
*/
if (bci->width > (2*bci->margin))
{
bci->width -= 2*bci->margin;
}
if (bci->height > (2*bci->margin))
{
bci->height -= 2*bci->margin;
}
/* First calculate barlen */
int barlen = bci->partial[0] - '0';
for ( int i = 1; bci->partial[i] != 0; i++ )
{
if ( isdigit(bci->partial[i]) )
{
barlen += bci->partial[i] - '0';
}
else
{
if ( (bci->partial[i] != '+') && (bci->partial[i] != '-') )
{
barlen += bci->partial[i] - 'a' + 1;
}
}
}
/* The scale factor depends on bar length */
double scalef = 1;
if ( bci->scalef == 0 )
{
if ( bci->width == 0 )
{
bci->width = barlen; /* default */
}
scalef = bci->scalef = (double)bci->width / (double)barlen;
if ( scalef < 0.5 )
{
scalef = 0.5;
}
}
/* The width defaults to "just enough" */
bci->width = (int)( barlen * scalef + 1 );
/* But it can be too small, in this case enlarge and center the area */
if ( bci->width < (int)(barlen * scalef) )
{
int wid = (int)( barlen * scalef + 1);
bci->xoff -= (wid - bci->width)/2 ;
bci->width = wid;
/* Can't extend too far on the left */
if (bci->xoff < 0)
{
bci->width += -bci->xoff;
bci->xoff = 0;
}
}
/* The height defaults to 80 points (rescaled) */
if ( bci->height == 0 )
{
bci->height = (int)( 80 * scalef );
}
/* If too small (5 + text), reduce the scale factor and center */
int i = 5 + 10 * ( ((bci->flags & BARCODE_NO_ASCII)==0) ? 1 : 0 );
if ( bci->height < (int)(i * scalef) )
{
bci->height = (int)( i * scalef );
}
/* Now traverse the code string and create a list of lines */
char mode = '-'; /* text below bars */
double x = bci->margin + (bci->partial[0] - '0') * scalef;
i = 1;
for ( int ip = 1; bci->partial[ip] != 0; ip++, i++)
{
/* special cases: '+' and '-' */
if ( bci->partial[ip] == '+' || bci->partial[ip] == '-' )
{
mode = bci->partial[ip]; /* don't count it */
i++;
continue;
}
/* j is the width of this bar/space */
int j;
if ( isdigit(bci->partial[ip]) )
{
j = bci->partial[ip] - '0';
}
else
{
j = bci->partial[ip] - 'a' + 1;
}
if ( (i % 2) != 0 )
{
/* bar */
double x0 = x;
double y0 = bci->margin;
double yr = bci->height;
if ( (bci->flags & BARCODE_NO_ASCII) == 0 )
{
/* leave space for text */
if (mode == '-')
{
/* text below bars: 10 or 5 points */
yr -= (isdigit(bci->partial[ip]) ? 10 : 5) * scalef;
}
else
{
/* '+' */
/* above bars: 10 or 0 from bottom,
and 10 from top */
y0 += 10 * scalef;
yr -= (isdigit(bci->partial[ip]) ? 20 : 10) * scalef;
}
}
addBox( x0, y0, (j * scalef) - INK_BLEED, yr );
}
x += j * scalef;
}
/* Now the text */
mode = '-'; /* reinstantiate default */
if ( (bci->flags & BARCODE_NO_ASCII) == 0 )
{
int len = strlen( bci->textinfo );
for ( int i = 0; i < len; i++ )
{
if ( bci->textinfo[i] == ' ' )
{
continue;
}
if ( (bci->textinfo[i] == '+') || (bci->textinfo[i] == '-') )
{
mode = bci->textinfo[i];
continue;
}
double f1, f2;
char c;
if ( sscanf( &bci->textinfo[i], "%lf:%lf:%c", &f1, &f2, &c) != 3 )
{
qDebug() << "Impossible data:" << QString(&bci->textinfo[i]);
continue;
}
f2 *= FONT_SCALE;
double x0 = f1*scalef + bci->margin + 0.4*f2*scalef;
double y0;
if (mode == '-')
{
y0 = bci->margin + bci->height - 8*scalef + 0.75*f2*scalef;
}
else
{
y0 = bci->margin + 0.75*f2*scalef;
}
addText( x0, y0, f2*scalef, QString(c).toStdString() );
/* skip past the substring we just read. */
while ( (bci->textinfo[i] != ' ') && (bci->textinfo[i] != 0) )
{
i++;
}
}
}
/* Fill in other info */
w = bci->width + 2.0*bci->margin;
h = bci->height + 2.0*bci->margin;
/* Cleanup */
Barcode_Delete( bci );
}
glbarcode::Barcode* Ean::create()
{
return new Ean();
}
bool Ean::validate( const std::string& rawData )
{
return ( isNumericLengthValid( rawData, 7, 8 )
|| isNumericLengthValid( rawData, 12, 13 )
|| ( isNumericLength1Valid( rawData, 7, 8 ) && isNumericLength2Valid( rawData, 2, 2 ) )
|| ( isNumericLength1Valid( rawData, 7, 8 ) && isNumericLength2Valid( rawData, 5, 5 ) )
|| ( isNumericLength1Valid( rawData, 12, 13 ) && isNumericLength2Valid( rawData, 2, 2 ) )
|| ( isNumericLength1Valid( rawData, 12, 13 ) && isNumericLength2Valid( rawData, 5, 5 ) ) );
}
std::string Ean::encode( const std::string& cookedData )
{
flags = BARCODE_EAN;
return ""; // Actual encoding is done in vectorize
}
}
}
#endif // HAVE_GNU_BARCODE
glabels/BarcodeBackends/GnuBarcode.h
+85
View File
@@ -0,0 +1,85 @@
/* GnuBarcode.h
*
* Copyright (C) 2017 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/>.
*/
#ifndef barcode_GnuBarcode_h
#define barcode_GnuBarcode_h
#if HAVE_GNU_BARCODE
#include "glbarcode/Barcode1dBase.h"
namespace glabels
{
namespace GnuBarcode
{
/**
* GnuBarcode::Base base class for all GNU Barcodes
*
* Implements glbarcode::Barcode1dBase.
*/
class Base : public glbarcode::Barcode1dBase
{
protected:
int flags;
bool isAscii( const std::string& data ) const;
bool isNumericLengthValid( const std::string& data,
unsigned int nMin,
unsigned int nMax ) const;
bool isNumericLength1Valid( const std::string& data,
unsigned int nMin,
unsigned int nMax ) const;
bool isNumericLength2Valid( const std::string& data,
unsigned int nMin,
unsigned int nMax ) const;
void vectorize( const std::string& encodedData,
const std::string& displayText,
const std::string& cookedData,
double& w,
double& h ) override;
};
/**
* EAN Barcode (Any)
*/
class Ean : public Base
{
public:
static Barcode* create();
protected:
bool validate( const std::string& rawData ) override;
std::string encode( const std::string& cookedData ) override;
};
}
}
#endif // HAVE_GNU_BARCODE
#endif // barcode_GnuBarcode_h
glabels/BarcodeBackends/QrEncode.cpp
+1 -1
View File
@@ -22,7 +22,7 @@
#include "QrEncode.h"
#include "qrencode.h"
#include <qrencode.h>
namespace glabels
glabels/CMakeLists.txt
+2
View File
@@ -199,6 +199,7 @@ target_link_libraries (glabels-qt
${Qt5Xml_LIBRARIES}
${Qt5Svg_LIBRARIES}
${ZLIB_LIBRARIES}
${GNUBARCODE_LIBRARIES}
${LIBQRENCODE_LIBRARIES}
)
@@ -213,6 +214,7 @@ include_directories (
${Qt5PrintSupport_INCLUDE_DIRS}
${Qt5Xml_INCLUDE_DIRS}
${Qt5Svg_INCLUDE_DIRS}
${GNUBARCODE_INCLUDE_DIR}
${LIBQRENCODE_INCLUDE_DIR}
)
glabels/LabelModelBarcodeObject.cpp
+1 -1
View File
@@ -450,7 +450,7 @@ namespace glabels
{
painter->setPen( QPen( color ) );
glbarcode::Barcode* bc = glbarcode::Factory::createBarcode( mBcStyle.id().toStdString() );
glbarcode::Barcode* bc = glbarcode::Factory::createBarcode( mBcStyle.fullId().toStdString() );
bc->setChecksum(mBcChecksumFlag);
bc->setShowText(mBcTextFlag);
glabels/PrintView.cpp
+4 -4
View File
@@ -122,7 +122,7 @@ namespace glabels
void PrintView::onPrintButtonClicked()
{
QSizeF pageSize( mModel->tmplate()->pageWidth().pt(), mModel->tmplate()->pageHeight().pt() );
mPrinter->setPaperSize( pageSize, QPrinter::Point );
mPrinter->setPageSize( QPageSize(pageSize, QPageSize::Point) );
mPrinter->setFullPage( true );
mPrinter->setPageMargins( 0, 0, 0, 0, QPrinter::Point );
@@ -139,9 +139,9 @@ namespace glabels
{
QPainter painter( mPrinter );
QSizeF sizePx = mPrinter->paperSize( QPrinter::DevicePixel );
QSizeF sizePts = mPrinter->paperSize( QPrinter::Point );
painter.scale( sizePx.width()/sizePts.width(), sizePx.height()/sizePts.height() );
QRectF rectPx = mPrinter->paperRect( QPrinter::DevicePixel );
QRectF rectPts = mPrinter->paperRect( QPrinter::Point );
painter.scale( rectPx.width()/rectPts.width(), rectPx.height()/rectPts.height() );
for ( int iPage = 0; iPage < mRenderer.nPages(); iPage++ )
{
glbarcode/QtRenderer.cpp
+19 -9
View File
@@ -23,6 +23,14 @@
#include <QFont>
#include <QFontMetrics>
#include <QString>
#include <QTextLayout>
#include <QtDebug>
namespace
{
const double FONT_SCALE = 0.75;
}
namespace glbarcode
@@ -136,18 +144,20 @@ namespace glbarcode
{
d->painter->setPen( QPen( d->color ) );
QFont font = d->painter->font();
QFont font;
font.setStyleHint( QFont::Monospace );
font.setPointSizeF( size );
d->painter->setFont( font );
font.setFamily( "monospace" );
font.setPointSizeF( FONT_SCALE*size );
QFontMetrics fm( font );
QRect rect = fm.boundingRect( QString::fromStdString(text) );
double xCorner = x - rect.width()/2.0;
double yCorner = y + fm.descent();
QFontMetricsF fm( font );
double xCorner = x - fm.width( QString::fromStdString(text) )/2.0;
double yCorner = y - fm.ascent();
d->painter->drawText( QPointF(xCorner, yCorner), QString::fromStdString(text) );
QTextLayout layout( QString::fromStdString(text), font );
layout.beginLayout();
layout.createLine();
layout.endLayout();
layout.draw( d->painter, QPointF(xCorner, yCorner) );
}
}
translations/glabels_C.ts
+17 -12
View File
@@ -744,62 +744,67 @@
<context>
<name>glabels::BarcodeBackends</name>
<message>
<location filename="../glabels/BarcodeBackends.cpp" line="54"/>
<location filename="../glabels/BarcodeBackends.cpp" line="55"/>
<source>POSTNET (any)</source>
<translation type="unfinished"></translation>
</message>
<message>
<location filename="../glabels/BarcodeBackends.cpp" line="57"/>
<location filename="../glabels/BarcodeBackends.cpp" line="58"/>
<source>POSTNET-5 (ZIP only)</source>
<translation type="unfinished"></translation>
</message>
<message>
<location filename="../glabels/BarcodeBackends.cpp" line="60"/>
<location filename="../glabels/BarcodeBackends.cpp" line="61"/>
<source>POSTNET-9 (ZIP+4)</source>
<translation type="unfinished"></translation>
</message>
<message>
<location filename="../glabels/BarcodeBackends.cpp" line="63"/>
<location filename="../glabels/BarcodeBackends.cpp" line="64"/>
<source>POSTNET-11 (DPBC)</source>
<translation type="unfinished"></translation>
</message>
<message>
<location filename="../glabels/BarcodeBackends.cpp" line="66"/>
<location filename="../glabels/BarcodeBackends.cpp" line="67"/>
<source>CEPNET</source>
<translation type="unfinished"></translation>
</message>
<message>
<location filename="../glabels/BarcodeBackends.cpp" line="69"/>
<location filename="../glabels/BarcodeBackends.cpp" line="70"/>
<source>USPS Intelligent Mail</source>
<translation type="unfinished"></translation>
</message>
<message>
<location filename="../glabels/BarcodeBackends.cpp" line="72"/>
<location filename="../glabels/BarcodeBackends.cpp" line="73"/>
<source>IEC16022 (DataMatrix)</source>
<translation type="unfinished"></translation>
</message>
<message>
<location filename="../glabels/BarcodeBackends.cpp" line="83"/>
<location filename="../glabels/BarcodeBackends.cpp" line="84"/>
<source>EAN (any)</source>
<translation type="unfinished"></translation>
</message>
<message>
<location filename="../glabels/BarcodeBackends.cpp" line="96"/>
<source>IEC18004 (QRCode)</source>
<translation type="unfinished"></translation>
</message>
<message>
<location filename="../glabels/BarcodeBackends.cpp" line="42"/>
<location filename="../glabels/BarcodeBackends.cpp" line="43"/>
<source>Code 39</source>
<translation type="unfinished"></translation>
</message>
<message>
<location filename="../glabels/BarcodeBackends.cpp" line="45"/>
<location filename="../glabels/BarcodeBackends.cpp" line="46"/>
<source>Code 39 Extended</source>
<translation type="unfinished"></translation>
</message>
<message>
<location filename="../glabels/BarcodeBackends.cpp" line="48"/>
<location filename="../glabels/BarcodeBackends.cpp" line="49"/>
<source>UPC-A</source>
<translation type="unfinished"></translation>
</message>
<message>
<location filename="../glabels/BarcodeBackends.cpp" line="51"/>
<location filename="../glabels/BarcodeBackends.cpp" line="52"/>
<source>EAN-13</source>
<translation type="unfinished"></translation>
</message>