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- zint_symbol->fgcolour & bgcolour buffer lengths extended 10

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-> 16 to allow for "C,M,Y,K" comma-separated decimal percentage
  strings
- API/CLI/GUI: allow foreground/background colours to be specified
  as comma-separated decimal "C,M,Y,K" strings where "C", "M" etc.
  are percentages (0-100) (ticket #281, 3rd point)
- output.c: new funcs `out_colour_get_rgb()` & `out_colour_get_cmyk()`
  and use in bmp/emf/gif etc.
- PCX: add alpha support
- GUI: fix fg/gbcolor icon background not being reset on zap
- GUI: Rearrange some Appearance tab inputs (Border Type <-> Width,
  Show Text <-> Font, Text/Font <-> Printing Scale/Size) to flow
  more naturally (hopefully)
- GUI: save button "Save As..." -> "Save..." and add icon
- CLI: add --bgcolor/colour & --fgcolor/colour synonyms
This commit is contained in:
gitlost 2023-01-29 19:51:11 +00:00
parent 48eaa0cc4e
commit ab2abccdb6
55 changed files with 1439 additions and 886 deletions
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36
backend/gif.c
View file

@ -1,7 +1,7 @@
/* gif.c - Handles output to gif file */
/*
libzint - the open source barcode library
Copyright (C) 2009-2022 Robin Stuart <rstuart114@gmail.com>
Copyright (C) 2009-2023 Robin Stuart <rstuart114@gmail.com>
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
@ -44,7 +44,7 @@
typedef struct s_statestruct {
unsigned char *pOut;
unsigned char *pIn;
const unsigned char *pIn;
unsigned int InLen;
unsigned int OutLength;
unsigned int OutPosCur;
@ -297,6 +297,10 @@ INTERNAL int gif_pixel_plot(struct zint_symbol *symbol, unsigned char *pixelbuf)
unsigned char backgroundColourIndex;
unsigned char RGBCur[3];
unsigned char RGBUnused[3] = {0,0,0};
unsigned char RGBfg[3];
unsigned char RGBbg[3];
unsigned char fgalpha;
unsigned char bgalpha;
int colourIndex;
@ -311,6 +315,9 @@ INTERNAL int gif_pixel_plot(struct zint_symbol *symbol, unsigned char *pixelbuf)
lzoutbufSize = GIF_LZW_PAGE_SIZE;
}
(void) out_colour_get_rgb(symbol->fgcolour, &RGBfg[0], &RGBfg[1], &RGBfg[2], &fgalpha);
(void) out_colour_get_rgb(symbol->bgcolour, &RGBbg[0], &RGBbg[1], &RGBbg[2], &bgalpha);
/*
* Build a table of the used palette items.
* Currently, there are the following 10 colour codes:
@ -364,14 +371,10 @@ INTERNAL int gif_pixel_plot(struct zint_symbol *symbol, unsigned char *pixelbuf)
/* Get RGB value */
switch (pixelColour) {
case '0': /* standard background */
RGBCur[0] = (unsigned char) (16 * ctoi(symbol->bgcolour[0])) + ctoi(symbol->bgcolour[1]);
RGBCur[1] = (unsigned char) (16 * ctoi(symbol->bgcolour[2])) + ctoi(symbol->bgcolour[3]);
RGBCur[2] = (unsigned char) (16 * ctoi(symbol->bgcolour[4])) + ctoi(symbol->bgcolour[5]);
RGBCur[0] = RGBbg[0]; RGBCur[1] = RGBbg[1]; RGBCur[2] = RGBbg[2];
break;
case '1': /* standard foreground */
RGBCur[0] = (unsigned char) (16 * ctoi(symbol->fgcolour[0])) + ctoi(symbol->fgcolour[1]);
RGBCur[1] = (unsigned char) (16 * ctoi(symbol->fgcolour[2])) + ctoi(symbol->fgcolour[3]);
RGBCur[2] = (unsigned char) (16 * ctoi(symbol->fgcolour[4])) + ctoi(symbol->fgcolour[5]);
RGBCur[0] = RGBfg[0]; RGBCur[1] = RGBfg[1]; RGBCur[2] = RGBfg[2];
break;
case 'W': /* white */
RGBCur[0] = 255; RGBCur[1] = 255; RGBCur[2] = 255;
@ -436,17 +439,12 @@ INTERNAL int gif_pixel_plot(struct zint_symbol *symbol, unsigned char *pixelbuf)
/* Note: does not allow both transparent foreground and background -
* background takes priority */
transparent_index = -1;
if (strlen(symbol->fgcolour) > 6) {
if ((symbol->fgcolour[6] == '0') && (symbol->fgcolour[7] == '0')) {
/* Transparent foreground */
transparent_index = fgindex;
}
}
if (strlen(symbol->bgcolour) > 6) {
if ((symbol->bgcolour[6] == '0') && (symbol->bgcolour[7] == '0')) {
/* Transparent background */
transparent_index = bgindex;
}
if (bgalpha == 0) {
/* Transparent background */
transparent_index = bgindex;
} else if (fgalpha == 0) {
/* Transparent foreground */
transparent_index = fgindex;
}
/* find palette bit size from palette size*/