zint-barcode-generator/backend_qt/qzint.cpp
gitlost e14d9e99d5 Add HEIGHTPERROW_MODE_input mode flag (#204)
backend_qt: add encodedWidth, encodedRows
DBAR_EXPSTK: add max rows option (option_3)
CODE16K/CODE49: add min rows option (option_1)
GUI: HIBC xxx -> HIBC
2021-11-20 11:32:30 +00:00

799 lines
24 KiB
C++

/***************************************************************************
* Copyright (C) 2008 by BogDan Vatra *
* bogdan@licentia.eu *
* Copyright (C) 2010-2021 Robin Stuart *
* *
* 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 3 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, see <http://www.gnu.org/licenses/>. *
***************************************************************************/
/* vim: set ts=4 sw=4 et : */
#ifdef _MSC_VER
#if _MSC_VER >= 1900 /* MSVC 2015 */
#pragma warning(disable: 4996) /* function or variable may be unsafe */
#endif
#endif
//#include <QDebug>
#include "qzint.h"
#include <stdio.h>
#include <math.h>
#include <QFontMetrics>
/* the following include was necessary to compile with Qt 5.15 on Windows */
/* Qt 5.7 did not require it. */
#include <QPainterPath>
namespace Zint {
static const char *fontStyle = "Helvetica";
static const char *fontStyleError = "Helvetica";
static const int fontSizeError = 14; /* Point size */
QZint::QZint() {
m_zintSymbol = NULL;
m_symbol = BARCODE_CODE128;
m_height = 0.0f;
m_borderType = 0;
m_borderWidth = 0;
m_fontSetting = 0;
m_option_1 = -1;
m_option_2 = 0;
m_option_3 = 0;
m_fgColor = Qt::black;
m_bgColor = Qt::white;
m_cmyk = false;
m_error = 0;
m_input_mode = UNICODE_MODE;
m_scale = 1.0f;
m_show_hrt = 1;
m_eci = 0;
m_dotty = false;
m_dot_size = 4.0f / 5.0f;
m_guardDescent = 5.0f;
memset(&m_structapp, 0, sizeof(m_structapp));
m_whitespace = 0;
m_vwhitespace = 0;
m_gs1parens = false;
m_gs1nocheck = false;
m_gssep = false;
m_quiet_zones = false;
m_no_quiet_zones = false;
m_compliant_height = false;
m_reader_init = false;
m_rotate_angle = 0;
m_debug = false;
m_encodedWidth = 0;
m_encodedRows = 0;
target_size_horiz = 0; /* Legacy */
target_size_vert = 0; /* Legacy */
}
QZint::~QZint() {
if (m_zintSymbol)
ZBarcode_Delete(m_zintSymbol);
}
void QZint::resetSymbol() {
if (m_zintSymbol)
ZBarcode_Delete(m_zintSymbol);
m_lastError.clear();
m_zintSymbol = ZBarcode_Create();
m_zintSymbol->output_options |= m_borderType | m_fontSetting;
m_zintSymbol->symbology = m_symbol;
m_zintSymbol->height = m_height;
m_zintSymbol->whitespace_width = m_whitespace;
m_zintSymbol->whitespace_height = m_vwhitespace;
if (m_quiet_zones) {
m_zintSymbol->output_options |= BARCODE_QUIET_ZONES;
}
if (m_no_quiet_zones) {
m_zintSymbol->output_options |= BARCODE_NO_QUIET_ZONES;
}
if (m_compliant_height) {
m_zintSymbol->output_options |= COMPLIANT_HEIGHT;
}
m_zintSymbol->border_width = m_borderWidth;
m_zintSymbol->option_1 = m_option_1;
m_zintSymbol->option_2 = m_option_2;
m_zintSymbol->option_3 = m_option_3;
m_zintSymbol->input_mode = m_input_mode;
if (m_dotty) {
m_zintSymbol->output_options |= BARCODE_DOTTY_MODE;
}
m_zintSymbol->dot_size = m_dot_size;
m_zintSymbol->guard_descent = m_guardDescent;
m_zintSymbol->structapp = m_structapp;
m_zintSymbol->show_hrt = m_show_hrt ? 1 : 0;
m_zintSymbol->eci = m_eci;
m_zintSymbol->scale = m_scale;
if (m_gs1parens) {
m_zintSymbol->input_mode |= GS1PARENS_MODE;
}
if (m_gs1nocheck) {
m_zintSymbol->input_mode |= GS1NOCHECK_MODE;
}
if (m_gssep) {
m_zintSymbol->output_options |= GS1_GS_SEPARATOR;
}
if (m_reader_init) {
m_zintSymbol->output_options |= READER_INIT;
}
if (m_debug) {
m_zintSymbol->debug |= ZINT_DEBUG_PRINT;
}
strcpy(m_zintSymbol->fgcolour, m_fgColor.name().toLatin1().right(6));
if (m_fgColor.alpha() != 0xff) {
strcat(m_zintSymbol->fgcolour, m_fgColor.name(QColor::HexArgb).toLatin1().mid(1,2));
}
strcpy(m_zintSymbol->bgcolour, m_bgColor.name().toLatin1().right(6));
if (m_bgColor.alpha() != 0xff) {
strcat(m_zintSymbol->bgcolour, m_bgColor.name(QColor::HexArgb).toLatin1().mid(1,2));
}
if (m_cmyk) {
m_zintSymbol->output_options |= CMYK_COLOUR;
}
strcpy(m_zintSymbol->primary, m_primaryMessage.toLatin1().left(127));
}
void QZint::encode() {
resetSymbol();
QByteArray bstr = m_text.toUtf8();
/* Note do our own rotation */
m_error = ZBarcode_Encode_and_Buffer_Vector(m_zintSymbol, (unsigned char *) bstr.data(), bstr.length(), 0);
m_lastError = m_zintSymbol->errtxt;
if (m_error < ZINT_ERROR) {
m_borderType = m_zintSymbol->output_options & (BARCODE_BIND | BARCODE_BOX);
m_height = m_zintSymbol->height;
m_borderWidth = m_zintSymbol->border_width;
m_whitespace = m_zintSymbol->whitespace_width;
m_vwhitespace = m_zintSymbol->whitespace_height;
m_encodedWidth = m_zintSymbol->width;
m_encodedRows = m_zintSymbol->rows;
emit encoded();
} else {
m_encodedWidth = 0;
m_encodedRows = 0;
emit errored();
}
}
int QZint::symbol() const {
return m_symbol;
}
void QZint::setSymbol(int symbol) {
m_symbol = symbol;
}
int QZint::inputMode() const {
return m_input_mode;
}
void QZint::setInputMode(int input_mode) {
m_input_mode = input_mode;
}
QString QZint::text() const {
return m_text;
}
void QZint::setText(const QString& text) {
m_text = text;
}
QString QZint::primaryMessage() const {
return m_primaryMessage;
}
void QZint::setPrimaryMessage(const QString& primaryMessage) {
m_primaryMessage = primaryMessage;
}
float QZint::height() const {
return m_height;
}
void QZint::setHeight(float height) {
m_height = height;
}
int QZint::option1() const {
return m_option_1;
}
void QZint::setOption1(int option_1) {
m_option_1 = option_1;
}
int QZint::option2() const {
return m_option_2;
}
void QZint::setOption2(int option) {
m_option_2 = option;
}
int QZint::option3() const {
return m_option_3;
}
void QZint::setOption3(int option) {
m_option_3 = option;
}
float QZint::scale() const {
return m_scale;
}
void QZint::setScale(float scale) {
m_scale = scale;
}
bool QZint::dotty() const {
return m_dotty;
}
void QZint::setDotty(bool dotty) {
m_dotty = dotty;
}
float QZint::dotSize() const {
return m_dot_size;
}
void QZint::setDotSize(float dotSize) {
m_dot_size = dotSize;
}
float QZint::guardDescent() const {
return m_guardDescent;
}
void QZint::setGuardDescent(float guardDescent) {
m_guardDescent = guardDescent;
}
int QZint::structAppCount() const {
return m_structapp.count;
}
int QZint::structAppIndex() const {
return m_structapp.index;
}
QString QZint::structAppID() const {
return m_structapp.id;
}
void QZint::setStructApp(const int count, const int index, const QString& id) {
if (count) {
m_structapp.count = count;
m_structapp.index = index;
memset(m_structapp.id, 0, sizeof(m_structapp.id));
if (!id.isEmpty()) {
QByteArray idArr = id.toLatin1();
#if defined(__GNUC__) && !defined(__clang__)
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wstringop-truncation"
#endif
strncpy(m_structapp.id, idArr, sizeof(m_structapp.id));
#if defined(__GNUC__) && !defined(__clang__)
#pragma GCC diagnostic pop
#endif
}
} else {
clearStructApp();
}
}
void QZint::clearStructApp() {
memset(&m_structapp, 0, sizeof(m_structapp));
}
QColor QZint::fgColor() const {
return m_fgColor;
}
void QZint::setFgColor(const QColor& fgColor) {
m_fgColor = fgColor;
}
QColor QZint::bgColor() const {
return m_bgColor;
}
void QZint::setBgColor(const QColor& bgColor) {
m_bgColor = bgColor;
}
bool QZint::cmyk() const {
return m_cmyk;
}
void QZint::setCMYK(bool cmyk) {
m_cmyk = cmyk;
}
int QZint::borderType() const {
return m_borderType;
}
void QZint::setBorderType(int borderTypeIndex) {
if (borderTypeIndex == 1) {
m_borderType = BARCODE_BIND;
} else if (borderTypeIndex == 2) {
m_borderType = BARCODE_BOX;
} else {
m_borderType = 0;
}
}
int QZint::borderWidth() const {
return m_borderWidth;
}
void QZint::setBorderWidth(int borderWidth) {
if (borderWidth < 0 || borderWidth > 16)
borderWidth = 0;
m_borderWidth = borderWidth;
}
int QZint::whitespace() const {
return m_whitespace;
}
void QZint::setWhitespace(int whitespace) {
m_whitespace = whitespace;
}
int QZint::vWhitespace() const {
return m_vwhitespace;
}
void QZint::setVWhitespace(int vWhitespace) {
m_vwhitespace = vWhitespace;
}
int QZint::fontSetting() const {
return m_fontSetting;
}
void QZint::setFontSetting(int fontSettingIndex) { // Sets from comboBox index
if (fontSettingIndex == 1) {
m_fontSetting = BOLD_TEXT;
} else if (fontSettingIndex == 2) {
m_fontSetting = SMALL_TEXT;
} else if (fontSettingIndex == 3) {
m_fontSetting = SMALL_TEXT | BOLD_TEXT;
} else {
m_fontSetting = 0;
}
}
void QZint::setFontSettingValue(int fontSetting) { // Sets literal value
if ((fontSetting & (BOLD_TEXT | SMALL_TEXT)) == fontSetting) {
m_fontSetting = fontSetting;
} else {
m_fontSetting = 0;
}
}
bool QZint::showText() const {
return m_show_hrt;
}
void QZint::setShowText(bool showText) {
m_show_hrt = showText;
}
bool QZint::gsSep() const {
return m_gssep;
}
void QZint::setGSSep(bool gsSep) {
m_gssep = gsSep;
}
bool QZint::quietZones() const {
return m_quiet_zones;
}
void QZint::setQuietZones(bool quietZones) {
m_quiet_zones = quietZones;
}
bool QZint::noQuietZones() const {
return m_no_quiet_zones;
}
void QZint::setNoQuietZones(bool noQuietZones) {
m_no_quiet_zones = noQuietZones;
}
bool QZint::compliantHeight() const {
return m_compliant_height;
}
void QZint::setCompliantHeight(bool compliantHeight) {
m_compliant_height = compliantHeight;
}
int QZint::rotateAngle() const {
return m_rotate_angle;
}
void QZint::setRotateAngle(int rotateIndex) { // Sets from comboBox index
if (rotateIndex == 1) {
m_rotate_angle = 90;
} else if (rotateIndex == 2) {
m_rotate_angle = 180;
} else if (rotateIndex == 3) {
m_rotate_angle = 270;
} else {
m_rotate_angle = 0;
}
}
void QZint::setRotateAngleValue(int rotateAngle) { // Sets literal value
if (rotateAngle == 90) {
m_rotate_angle = 90;
} else if (rotateAngle == 180) {
m_rotate_angle = 180;
} else if (rotateAngle == 270) {
m_rotate_angle = 270;
} else {
m_rotate_angle = 0;
}
}
int QZint::eci() const {
return m_eci;
}
void QZint::setECI(int ECIIndex) { // Sets from comboBox index
if (ECIIndex >= 1 && ECIIndex <= 11) {
m_eci = ECIIndex + 2;
} else if (ECIIndex >= 12 && ECIIndex <= 15) {
m_eci = ECIIndex + 3;
} else if (ECIIndex >= 16 && ECIIndex <= 26) {
m_eci = ECIIndex + 4;
} else if (ECIIndex == 27) {
m_eci = 899; /* 8-bit binary data */
} else {
m_eci = 0;
}
}
void QZint::setECIValue(int eci) { // Sets literal value
if (eci < 3 || (eci > 30 && eci != 899) || eci == 14 || eci == 19) {
m_eci = 0;
} else {
m_eci = eci;
}
}
bool QZint::gs1Parens() const {
return m_gs1parens;
}
void QZint::setGS1Parens(bool gs1Parens) {
m_gs1parens = gs1Parens;
}
bool QZint::gs1NoCheck() const {
return m_gs1nocheck;
}
void QZint::setGS1NoCheck(bool gs1NoCheck) {
m_gs1nocheck = gs1NoCheck;
}
bool QZint::readerInit() const {
return m_reader_init;
}
void QZint::setReaderInit(bool readerInit) {
m_reader_init = readerInit;
}
bool QZint::debug() const {
return m_debug;
}
void QZint::setDebug(bool debug) {
m_debug = debug;
}
int QZint::encodedWidth() const { // Read-only, encoded width (no. of modules encoded)
return m_encodedWidth;
}
int QZint::encodedRows() const { // Read-only, no. of rows encoded
return m_encodedRows;
}
/* Legacy */
void QZint::setWidth(int width) { setOption1(width); }
int QZint::width() const { return m_option_1; }
void QZint::setSecurityLevel(int securityLevel) { setOption2(securityLevel); }
int QZint::securityLevel() const { return m_option_2; }
void QZint::setPdf417CodeWords(int /*pdf417CodeWords*/) {}
int QZint::pdf417CodeWords() const { return 0; }
void QZint::setHideText(bool hide) { setShowText(!hide); }
void QZint::setTargetSize(int width, int height) {
target_size_horiz = width;
target_size_vert = height;
}
QString QZint::error_message() const { return m_lastError; } /* Same as lastError() */
bool QZint::hasHRT(int symbology) const {
return ZBarcode_Cap(symbology ? symbology : m_symbol, ZINT_CAP_HRT);
}
bool QZint::isExtendable(int symbology) const {
return ZBarcode_Cap(symbology ? symbology : m_symbol, ZINT_CAP_EXTENDABLE);
}
bool QZint::supportsECI(int symbology) const {
return ZBarcode_Cap(symbology ? symbology : m_symbol, ZINT_CAP_ECI);
}
bool QZint::supportsGS1(int symbology) const {
return ZBarcode_Cap(symbology ? symbology : m_symbol, ZINT_CAP_GS1);
}
bool QZint::hasDefaultQuietZones(int symbology) const {
return ZBarcode_Cap(symbology ? symbology : m_symbol, ZINT_CAP_QUIET_ZONES);
}
bool QZint::isFixedRatio(int symbology) const {
return ZBarcode_Cap(symbology ? symbology : m_symbol, ZINT_CAP_FIXED_RATIO);
}
bool QZint::isDotty(int symbology) const {
return ZBarcode_Cap(symbology ? symbology : m_symbol, ZINT_CAP_DOTTY);
}
bool QZint::supportsReaderInit(int symbology) const {
return ZBarcode_Cap(symbology ? symbology : m_symbol, ZINT_CAP_READER_INIT);
}
bool QZint::hasCompliantHeight(int symbology) const {
return ZBarcode_Cap(symbology ? symbology : m_symbol, ZINT_CAP_COMPLIANT_HEIGHT);
}
int QZint::getError() const {
return m_error;
}
const QString& QZint::lastError() const {
return m_lastError;
}
bool QZint::hasErrors() const {
return m_lastError.length();
}
int QZint::getVersion() const {
return ZBarcode_Version();
}
bool QZint::save_to_file(QString filename) {
resetSymbol();
strcpy(m_zintSymbol->outfile, filename.toLatin1().left(255));
QByteArray bstr = m_text.toUtf8();
m_error = ZBarcode_Encode_and_Print(m_zintSymbol, (unsigned char *) bstr.data(), bstr.length(),
m_rotate_angle);
if (m_error >= ZINT_ERROR) {
m_lastError = m_zintSymbol->errtxt;
m_encodedWidth = 0;
m_encodedRows = 0;
emit errored();
return false;
} else {
return true;
}
}
Qt::GlobalColor QZint::colourToQtColor(int colour) {
switch (colour) {
case 1: // Cyan
return Qt::cyan;
break;
case 2: // Blue
return Qt::blue;
break;
case 3: // Magenta
return Qt::magenta;
break;
case 4: // Red
return Qt::red;
break;
case 5: // Yellow
return Qt::yellow;
break;
case 6: // Green
return Qt::green;
break;
case 8: // White
return Qt::white;
break;
default:
return Qt::black;
break;
}
}
/* Note: legacy argument `mode` is not used */
void QZint::render(QPainter& painter, const QRectF& paintRect, AspectRatioMode /*mode*/) {
struct zint_vector_rect *rect;
struct zint_vector_hexagon *hex;
struct zint_vector_circle *circle;
struct zint_vector_string *string;
encode();
painter.save();
if (m_error >= ZINT_ERROR) {
painter.setRenderHint(QPainter::Antialiasing);
QFont font(fontStyleError, fontSizeError);
painter.setFont(font);
painter.drawText(paintRect, Qt::AlignCenter | Qt::TextWordWrap, m_lastError);
painter.restore();
return;
}
painter.setClipRect(paintRect, Qt::IntersectClip);
qreal xtr = paintRect.x();
qreal ytr = paintRect.y();
qreal scale;
qreal gwidth = m_zintSymbol->vector->width;
qreal gheight = m_zintSymbol->vector->height;
if (m_rotate_angle == 90 || m_rotate_angle == 270) {
if (paintRect.width() / gheight < paintRect.height() / gwidth) {
scale = paintRect.width() / gheight;
} else {
scale = paintRect.height() / gwidth;
}
} else {
if (paintRect.width() / gwidth < paintRect.height() / gheight) {
scale = paintRect.width() / gwidth;
} else {
scale = paintRect.height() / gheight;
}
}
xtr += (qreal) (paintRect.width() - gwidth * scale) / 2.0;
ytr += (qreal) (paintRect.height() - gheight * scale) / 2.0;
if (m_rotate_angle) {
painter.translate(paintRect.width() / 2.0, paintRect.height() / 2.0); // Need to rotate around centre
painter.rotate(m_rotate_angle);
painter.translate(-paintRect.width() / 2.0, -paintRect.height() / 2.0); // Undo
}
painter.translate(xtr, ytr);
painter.scale(scale, scale);
QBrush bgBrush(m_bgColor);
painter.fillRect(QRectF(0, 0, gwidth, gheight), bgBrush);
// Plot rectangles
rect = m_zintSymbol->vector->rectangles;
if (rect) {
QBrush brush(Qt::SolidPattern);
while (rect) {
if (rect->colour == -1) {
brush.setColor(m_fgColor);
} else {
brush.setColor(colourToQtColor(rect->colour));
}
painter.fillRect(QRectF(rect->x, rect->y, rect->width, rect->height), brush);
rect = rect->next;
}
}
// Plot hexagons
hex = m_zintSymbol->vector->hexagons;
if (hex) {
painter.setRenderHint(QPainter::Antialiasing);
QBrush fgBrush(m_fgColor);
qreal previous_diameter = 0.0, radius = 0.0, half_radius = 0.0, half_sqrt3_radius = 0.0;
while (hex) {
if (previous_diameter != hex->diameter) {
previous_diameter = hex->diameter;
radius = 0.5 * previous_diameter;
half_radius = 0.25 * previous_diameter;
half_sqrt3_radius = 0.43301270189221932338 * previous_diameter;
}
QPainterPath pt;
pt.moveTo(hex->x, hex->y + radius);
pt.lineTo(hex->x + half_sqrt3_radius, hex->y + half_radius);
pt.lineTo(hex->x + half_sqrt3_radius, hex->y - half_radius);
pt.lineTo(hex->x, hex->y - radius);
pt.lineTo(hex->x - half_sqrt3_radius, hex->y - half_radius);
pt.lineTo(hex->x - half_sqrt3_radius, hex->y + half_radius);
pt.lineTo(hex->x, hex->y + radius);
painter.fillPath(pt, fgBrush);
hex = hex->next;
}
}
// Plot dots (circles)
circle = m_zintSymbol->vector->circles;
if (circle) {
painter.setRenderHint(QPainter::Antialiasing);
QPen p;
QBrush fgBrush(m_fgColor);
qreal previous_diameter = 0.0, radius = 0.0;
while (circle) {
if (previous_diameter != circle->diameter) {
previous_diameter = circle->diameter;
radius = 0.5 * previous_diameter;
}
if (circle->colour) { // Set means use background colour
p.setColor(m_bgColor);
p.setWidthF(circle->width);
painter.setPen(p);
painter.setBrush(circle->width ? Qt::NoBrush : bgBrush);
} else {
p.setColor(m_fgColor);
p.setWidthF(circle->width);
painter.setPen(p);
painter.setBrush(circle->width ? Qt::NoBrush : fgBrush);
}
painter.drawEllipse(QPointF(circle->x, circle->y), radius, radius);
circle = circle->next;
}
}
// Plot text
string = m_zintSymbol->vector->strings;
if (string) {
painter.setRenderHint(QPainter::Antialiasing);
QPen p;
p.setColor(m_fgColor);
painter.setPen(p);
bool bold = (m_zintSymbol->output_options & BOLD_TEXT)
&& (!isExtendable() || (m_zintSymbol->output_options & SMALL_TEXT));
QFont font(fontStyle, -1 /*pointSize*/, bold ? QFont::Bold : -1);
while (string) {
font.setPixelSize(string->fsize);
painter.setFont(font);
QString content = QString::fromUtf8((const char *) string->text);
/* string->y is baseline of font */
if (string->halign == 1) { /* Left align */
painter.drawText(QPointF(string->x, string->y), content);
} else {
QFontMetrics fm(painter.fontMetrics());
int width = fm.boundingRect(content).width();
if (string->halign == 2) { /* Right align */
painter.drawText(QPointF(string->x - width, string->y), content);
} else { /* Centre align */
painter.drawText(QPointF(string->x - (width / 2.0), string->y), content);
}
}
string = string->next;
}
}
painter.restore();
}
} /* namespace Zint */