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zint/backend_qt/qzint.h
gitlost 323b34502b zint.h: increase symbol->text size 160 -> 200; 
rename `ZINT_CAP_EXTENDABLE` -> `ZINT_CAP_EANUPC`
  (`ZINT_CAP_EXTENDABLE` marked as legacy)
CODE128: increase no. symbol chars max 60 -> 99
EAN-2/EAN-5: fix `BARCODE_BIND_TOP/BIND/BOX` output
GS1_128: warn if data > 48 (GS1 General Specifications max)
common: `is_extendable()` -> `is_ucpean()`
raster: add `ZFONT_HALIGN_CENTRE/LEFT/RIGHT` flags and process
  in `draw_string()` (for drawing EAN/UPC outside digits), and
  for `ZFONT_HALIGN_CENTRE` round when calculating centre
  (shifts some texts 1 pixel left)
raster/vector: use offsets into `symbol->text` for EAN/UPC
  instead of `out_upcean_split_text()` (removed)
BMP/EMF/GIF/PCX/PNG/PS/SVG/TIF: use new `out_colour_get_rgb()`
  routine (replaces `colour_to_XXX()`)
general: simplify/fix some `error_number` handling/returning
frontend: truncate overlong `--primary` instead of ignoring;
  negative floating pt option (for `--textgap`)
man page: list size detail for matrix symbols (`--vers`)
manual: further fiddling with scaling text; some typos
2023-11-19 19:39:54 +00:00

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/***************************************************************************
* Copyright (C) 2008 by BogDan Vatra *
* bogdan@licentia.eu *
* Copyright (C) 2010-2023 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/>. *
***************************************************************************/
/* SPDX-License-Identifier: GPL-3.0-or-later */
/*
* For version, see "../backend/zintconfig.h"
* For documentation, see "../docs/manual.txt"
*/
#ifndef QZINT_H
#define QZINT_H
#include <QObject>
#include <QColor>
#include <QPainter>
#include "zint.h"
namespace Zint
{
/* QString version of `struct zint_seg` */
class QZintSeg {
public:
QString m_text; // `seg->source` and `seg->length`
int m_eci; // `seg->eci`
QZintSeg();
QZintSeg(const QString& text, const int ECIIndex = 0); // `ECIIndex` is comboBox index (not ECI value)
};
struct QZintXdimDpVars; // Forward reference to Printing Scale settings, see end
/* Interface */
class QZint : public QObject
{
Q_OBJECT
public:
/* Legacy - not used */
enum AspectRatioMode{ IgnoreAspectRatio = 0, KeepAspectRatio = 1, CenterBarCode = 2 };
public:
QZint();
~QZint();
/* Symbology to use (see BARCODE_XXX) */
int symbol() const; // `symbol->symbology`
void setSymbol(int symbol);
/* Input data encoding. Default UNICODE_MODE */
int inputMode() const; // `symbol->input_mode`
void setInputMode(int input_mode);
/* Note text/eci and segs are mutally exclusive */
/* Input data (segment 0 text) */
QString text() const;
/* Set input data. Note: clears segs */
void setText(const QString& text);
/* Input segments. */
std::vector<QZintSeg> segs() const;
/* Set segments. Note: clears text and sets eci */
void setSegs(const std::vector<QZintSeg>& segs);
/* Primary message (Maxicode, Composite) */
QString primaryMessage() const; // `symbol->primary`
void setPrimaryMessage(const QString& primaryMessage);
/* Symbol height in X-dimensions */
float height() const; // `symbol->height`
void setHeight(float height);
/* Symbol-specific options (see "../docs/manual.txt") */
int option1() const; // `symbol->option_1`
void setOption1(int option_1);
/* Symbol-specific options */
int option2() const; // `symbol->option_2`
void setOption2(int option);
/* Symbol-specific options */
int option3() const; // `symbol->option_3`
void setOption3(int option);
/* Scale factor when printing barcode, i.e. adjusts X-dimension */
float scale() const; // `symbol->scale`
void setScale(float scale);
/* Resolution of output in dots per mm (BMP/EMF/PCX/PNG/TIF only) */
float dpmm() const; // `symbol->dpmm`
void setDPMM(float dpmm);
/* Dotty mode */
bool dotty() const; // `symbol->input_mode | BARCODE_DOTTY_MODE`
void setDotty(bool botty);
/* Size of dots used in BARCODE_DOTTY_MODE */
float dotSize() const; // `symbol->dot_size`
void setDotSize(float dot_size);
/* Height in X-dimensions that EAN/UPC guard bars descend */
float guardDescent() const; // `symbol->guard_descent`
void setGuardDescent(float guardDescent);
/* Structured Append info */
int structAppCount() const; // `symbol->structapp.count`
int structAppIndex() const; // `symbol->structapp.index`
QString structAppID() const; // `symbol->structapp.id`
void setStructApp(const int count, const int index, const QString& id);
void clearStructApp();
/* Foreground colour (may be RGB(A) hex string or CMYK decimal "C,M,Y,K" percentage string) */
QString fgStr() const; // `symbol->fgcolour`
bool setFgStr(const QString& fgStr); // Returns false if not valid colour string
/* Foreground colour as QColor */
QColor fgColor() const; // `symbol->fgcolour`
void setFgColor(const QColor& fgColor);
/* Background colour (may be RGB(A) hex string or CMYK decimal "C,M,Y,K" percentage string) */
QString bgStr() const; // `symbol->bgcolour`
bool setBgStr(const QString& bgStr); // Returns false if not valid colour string
/* Background colour as QColor */
QColor bgColor() const; // `symbol->bgcolour`
void setBgColor(const QColor& bgColor);
/* Use CMYK colour space (Encapsulated PostScript and TIF) */
bool cmyk() const; // `symbol->output_options | CMYK_COLOUR`
void setCMYK(bool cmyk);
/* Type of border above/below/around barcode */
int borderType() const; // `symbol->output_options | BARCODE_BIND | BARCODE_BOX | BARCODE_BIND_TOP`
void setBorderType(int borderTypeIndex);
/* Size of border in X-dimensions */
int borderWidth() const; // `symbol->border_width`
void setBorderWidth(int borderWidth);
/* Width in X-dimensions of whitespace to left & right of barcode */
int whitespace() const; // `symbol->whitespace_width`
void setWhitespace(int whitespace);
/* Height in X-dimensions of whitespace above & below the barcode */
int vWhitespace() const; // `symbol->whitespace_height`
void setVWhitespace(int vWhitespace);
/* Type of font to use i.e. normal, small, bold or (vector only) small bold */
int fontSetting() const; // `symbol->output_options | SMALL_TEXT | BOLD_TEXT`
void setFontSetting(int fontSettingIndex); // Sets from comboBox index
void setFontSettingValue(int fontSetting); // Sets literal value
/* Text gap */
float textGap() const; // `symbol->text_gap`
void setTextGap(float textGap);
/* Show (true) or hide (false) Human Readable Text (HRT) */
bool showText() const; // `symbol->show_hrt`
void setShowText(bool showText);
/* Set to true to use GS (Group Separator) instead of FNC1 as GS1 separator (Data Matrix) */
bool gsSep() const; // `symbol->output_options | GS1_GS_SEPARATOR`
void setGSSep(bool gsSep);
/* Add compliant quiet zones (additional to any specified whitespace)
Note: CODE16K, CODE49, CODABLOCKF, ITF14, EAN/UPC have default quiet zones */
bool quietZones() const; // `symbol->output_options | BARCODE_QUIET_ZONES`
void setQuietZones(bool quietZones);
/* Disable quiet zones, notably those with defaults as listed above */
bool noQuietZones() const; // `symbol->output_options | BARCODE_NO_QUIET_ZONES`
void setNoQuietZones(bool noQuietZones);
/* Warn if height not compliant and use standard height (if any) as default */
bool compliantHeight() const; // `symbol->output_options | COMPLIANT_HEIGHT`
void setCompliantHeight(bool compliantHeight);
/* Rotate barcode by angle (degrees 0, 90, 180 and 270) */
int rotateAngle() const;
void setRotateAngle(int rotateIndex); // Sets from comboBox index
void setRotateAngleValue(int rotateAngle); // Sets literal value
/* Extended Channel Interpretation (segment 0 eci) */
int eci() const; // `symbol->eci`
void setECI(int ECIIndex); // Sets from comboBox index
void setECIValue(int eci); // Sets literal value
/* Process parentheses as GS1 AI delimiters (instead of square brackets) */
bool gs1Parens() const; // `symbol->input_mode | GS1PARENS_MODE`
void setGS1Parens(bool gs1Parens);
/* Do not check validity of GS1 data (except that printable ASCII only) */
bool gs1NoCheck() const; // `symbol->input_mode | GS1NOCHECK_MODE`
void setGS1NoCheck(bool gs1NoCheck);
/* Reader Initialisation (Programming) */
bool readerInit() const; // `symbol->output_options | READER_INIT`
void setReaderInit(bool readerInit);
/* Whether to add quiet zone indicators ("<", ">") to HRT (EAN/UPC) */
bool guardWhitespace() const; // `symbol->output_options | EANUPC_GUARD_WHITESPACE`
void setGuardWhitespace(bool guardWhitespace);
/* Whether to embed the font in vector output - currently only for SVG output of EAN/UPC */
bool embedVectorFont() const; // `symbol->output_options | EANUPC_GUARD_WHITESPACE`
void setEmbedVectorFont(bool embedVectorFont);
/* Affects error/warning value returned by Zint API (see `getError()` below) */
int warnLevel() const; // `symbol->warn_level`
void setWarnLevel(int warnLevel);
/* Debugging flags */
bool debug() const; // `symbol->debug`
void setDebug(bool debug);
/* Symbol output info set by Zint on successful `render()` */
int encodedWidth() const; // Read-only, encoded width (no. of modules encoded)
int encodedRows() const; // Read-only, no. of rows encoded
float encodedHeight() const; // Read-only, in X-dimensions
float vectorWidth() const; // Read-only, scaled width
float vectorHeight() const; // Read-only, scaled height
/* Legacy property getters/setters */
void setWidth(int width); /* `symbol->option_1` */
int width() const;
void setSecurityLevel(int securityLevel); /* `symbol->option_2` */
int securityLevel() const;
void setPdf417CodeWords(int pdf417CodeWords); /* No-op */
int pdf417CodeWords() const;
void setHideText(bool hide); /* `setShowText(!hide)` */
void setTargetSize(int width, int height); /* No-op */
QString error_message() const; /* Same as `lastError()` */
/* Test capabilities - `ZBarcode_Cap()` */
bool hasHRT(int symbology = 0) const;
bool isStackable(int symbology = 0) const;
bool isEANUPC(int symbology = 0) const;
bool isExtendable(int symbology = 0) const; /* Legacy - same as `isEANUPC()` */
bool isComposite(int symbology = 0) const;
bool supportsECI(int symbology = 0) const;
bool supportsGS1(int symbology = 0) const;
bool isDotty(int symbology = 0) const;
bool hasDefaultQuietZones(int symbology = 0) const;
bool isFixedRatio(int symbology = 0) const;
bool supportsReaderInit(int symbology = 0) const;
bool supportsFullMultibyte(int symbology = 0) const;
bool hasMask(int symbology = 0) const;
bool supportsStructApp(int symbology = 0) const;
bool hasCompliantHeight(int symbology = 0) const;
/* Whether takes GS1 AI-delimited data */
bool takesGS1AIData(int symbology = 0) const;
/* Error or warning returned by Zint on `render()` or `save_to_file()` */
int getError() const;
/* Error message returned by Zint on `render()` or `save_to_file()` */
const QString& lastError() const; // `symbol->errtxt`
/* Whether `lastError()` set */
bool hasErrors() const; // `symbol->errtxt`
/* Encode and print barcode to file `filename`. Only sets `getError()` on error, not on warning */
bool save_to_file(const QString& filename); // `ZBarcode_Print()`
/* Encode and display barcode in `paintRect` using `painter`.
Note: legacy argument `mode` is not used */
void render(QPainter& painter, const QRectF& paintRect, AspectRatioMode mode = IgnoreAspectRatio);
/* Returns the default X-dimension (`ZBarcode_Default_Xdim()`).
If `symbology` non-zero then used instead of `symbol()` */
float defaultXdim(int symbology = 0) const;
/* Returns the scale to use for X-dimension `x_dim_mm` at `dpmm` for `filetype`.
If `symbology` non-zero then used instead of `symbol()` */
float getScaleFromXdimDp(float x_dim_mm, float dpmm, const QString& fileType, int symbology = 0) const;
// `ZBarcode_Scale_Xdim()`
/* Reverse of `getScaleFromXdimDp()` above, returning the X-dimension or dot density given the scale `scale`.
If `symbology` non-zero then used instead of `symbol()` */
float getXdimDpFromScale(float scale, float x_dim_mm_or_dpmm, const QString& fileType, int symbology = 0) const;
// `ZBarcode_XdimDp_From_Scale()`
/* Set `width_x_dim` and `height_x_dim` with estimated size of barcode based on X-dimension `x_dim`. To be called
after a successful `render()`. Returns false if `scale()` zero or render is in error, otherwise true */
bool getWidthHeightXdim(float x_dim, float &width_x_dim, float &height_x_dim) const;
/* Return the BARCODE_XXX name of `symbology` */
static QString barcodeName(const int symbology); // `ZBarcode_BarcodeName()`
/* Whether Zint library "libzint" built with PNG support or not */
static bool noPng(); // `ZBarcode_NoPng()`
/* Version of Zint library "libzint" linked to */
static int getVersion(); // `ZBarcode_Version()`
/* Translate settings into Command Line equivalent. Set `win` to use Windows escaping of data.
If `autoHeight` set then `--height=` option will not be emitted.
If HEIGHTPERROW_MODE set and non-zero `heightPerRow` given then use that for height instead of internal
height */
QString getAsCLI(const bool win, const bool longOptOnly = false, const bool barcodeNames = false,
const bool noEXE = false, const bool autoHeight = false, const float heightPerRow = 0.0f,
const QString& outfile = "", const QZintXdimDpVars *xdimdpVars = nullptr) const;
signals:
void encoded(); // Emitted on successful `render()`
void errored(); // Emitted if an error (not warning) occurred on `render()`
private:
bool resetSymbol(); // Reset the symbol structure for encoding using member fields
void encode(); // `ZBarcode_Encode_and_Buffer_Vector()` or `ZBarcode_Encode_Segs_and_Buffer_Vector()`
/* Helper to convert `m_segs` to `struct zint_seg[]` */
int convertSegs(struct zint_seg segs[], std::vector<QByteArray>& bstrs);
/* Convert `zint_vector_rect->colour` to Qt color */
static Qt::GlobalColor colourToQtColor(int colour);
/* `getAsCLI()` helpers */
static void arg_str(QString& cmd, const char *const opt, const QString& val);
static void arg_int(QString& cmd, const char *const opt, const int val, const bool allowZero = false);
static void arg_bool(QString& cmd, const char *const opt, const bool val);
static void arg_data(QString& cmd, const char *const opt, const QString& val, const bool win);
static void arg_seg(QString& cmd, const int seg_no, const QZintSeg& val, const bool win);
static void arg_data_esc(QString& cmd, const char *const opt, QString& text, const bool win);
static void arg_float(QString& cmd, const char *const opt, const float val, const bool allowZero = false);
static void arg_structapp(QString& cmd, const char *const opt, const int count, const int index,
const QString& id, const bool win);
static void arg_scalexdimdp(QString& cmd, const char *const opt, const float scale, const float dpmm,
const int symbol, const QZintXdimDpVars *xdimdpVars);
private:
zint_symbol *m_zintSymbol;
int m_symbol;
int m_input_mode;
QString m_text;
QString m_primaryMessage;
std::vector<QZintSeg> m_segs;
float m_height;
int m_option_1;
int m_option_2;
int m_option_3;
float m_dpmm;
float m_scale;
bool m_dotty;
float m_dot_size;
float m_guardDescent;
float m_textGap;
struct zint_structapp m_structapp;
QString m_fgStr;
QString m_bgStr;
bool m_cmyk;
int m_borderType;
int m_borderWidth;
int m_whitespace;
int m_vwhitespace;
int m_fontSetting;
bool m_show_hrt;
bool m_gssep;
bool m_quiet_zones;
bool m_no_quiet_zones;
bool m_compliant_height;
int m_rotate_angle;
int m_eci;
bool m_gs1parens;
bool m_gs1nocheck;
bool m_reader_init;
bool m_guard_whitespace;
bool m_embed_vector_font;
int m_warn_level;
bool m_debug;
int m_encodedWidth;
int m_encodedRows;
float m_encodedHeight;
float m_vectorWidth;
float m_vectorHeight;
QString m_lastError;
int m_error;
int target_size_horiz; /* Legacy */
int target_size_vert; /* Legacy */
};
/* Printing Scale settings */
struct QZintXdimDpVars {
double x_dim = 0.0; // X-dimension in `x_dim_units`
int x_dim_units = 0; // 0 for mm, 1 for inches
int resolution = 0; // Dot density in `resolution_units`
int resolution_units = 0; // 0 for dpmm, 1 for dpi
int filetype = 0; // For non-MaxiCode, 0 for GIF (raster), 1 for SVG (vector)
int filetype_maxicode = 0; // For MaxiCode only, 0 for GIF (raster), 1 for SVG (vector), 2 for EMF
int set = 0; // 1 if explicitly set, 0 if just defaults (in which case the struct isn't applicable to `dpmm()`)
/* Helper to return "GIF"/"SVG"(/"EMF") if `msg` false, "raster"/"vector"(/"EMF") otherwise
(EMF only if `symbol` is MaxiCode) */
static const char *getFileType(int symbol, const struct QZintXdimDpVars *vars, bool msg = false);
};
} /* namespace Zint */
/* vim: set ts=4 sw=4 et : */
#endif /* QZINT_H */
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