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zint/backend/emf.c

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/* emf.c - Support for Microsoft Enhanced Metafile Format
libzint - the open source barcode library
Copyright (C) 2016 - 2020 Robin Stuart <rstuart114@gmail.com>
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
1. Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
3. Neither the name of the project nor the names of its contributors
may be used to endorse or promote products derived from this software
without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
SUCH DAMAGE.
*/
/* vim: set ts=4 sw=4 et : */
/* Developed according to [MS-EMF] - v20160714, Released July 14, 2016
* and [MS-WMF] - v20160714, Released July 14, 2016 */
#include <stdio.h>
#include <assert.h>
#include <math.h>
#ifdef _MSC_VER
#include <malloc.h>
#endif
#include "common.h"
#include "emf.h"
static int count_rectangles(struct zint_symbol *symbol) {
int rectangles = 0;
struct zint_vector_rect *rect;
rect = symbol->vector->rectangles;
while (rect) {
rectangles++;
rect = rect->next;
}
return rectangles;
}
static int count_circles(struct zint_symbol *symbol) {
int circles = 0;
struct zint_vector_circle *circ;
circ = symbol->vector->circles;
while (circ) {
circles++;
circ = circ->next;
}
return circles;
}
static int count_hexagons(struct zint_symbol *symbol) {
int hexagons = 0;
struct zint_vector_hexagon *hex;
hex = symbol->vector->hexagons;
while (hex) {
hexagons++;
hex = hex->next;
}
return hexagons;
}
static int count_strings(struct zint_symbol *symbol, float *fsize, float *fsize2, int *halign, int *halign1,
int *halign2) {
int strings = 0;
struct zint_vector_string *str;
*fsize = *fsize2 = 0.0f;
*halign = *halign1 = *halign2 = 0;
str = symbol->vector->strings;
while (str) {
/* Allow 2 font sizes */
if (*fsize == 0.0f) {
*fsize = str->fsize;
} else if (str->fsize != *fsize && *fsize2 == 0.0f) {
*fsize2 = str->fsize;
}
/* Only 3 haligns possible */
if (str->halign) {
if (str->halign == 1) {
*halign1 = str->halign;
} else {
*halign2 = str->halign;
}
}
strings++;
str = str->next;
}
return strings;
}
static void utfle_copy(unsigned char *output, unsigned char *input, int length) {
int i;
int o;
/* Convert UTF-8 to UTF-16LE - only needs to handle characters <= U+00FF */
i = 0;
o = 0;
do {
if (input[i] <= 0x7f) {
/* 1 byte mode (7-bit ASCII) */
output[o] = input[i];
output[o + 1] = 0x00;
o += 2;
i++;
} else {
/* 2 byte mode */
output[o] = ((input[i] & 0x1f) << 6) + (input[i + 1] & 0x3f);
output[o + 1] = 0x00;
o += 2;
i += 2;
}
} while (i < length);
}
static int bump_up(int input) {
/* Strings length must be a multiple of 4 bytes */
if ((input & 1) == 1) {
input++;
}
return input;
}
static int utfle_length(unsigned char *input, int length) {
int result = 0;
int i;
for (i = 0; i < length; i++) {
result++;
if (input[i] >= 0x80) { /* 2 byte UTF-8 counts as one UTF-16LE character */
i++;
}
}
return result;
}
INTERNAL int emf_plot(struct zint_symbol *symbol, int rotate_angle) {
int i;
FILE *emf_file;
int fgred, fggrn, fgblu, bgred, bggrn, bgblu;
int error_number = 0;
int rectangle_count, this_rectangle;
int circle_count, this_circle;
int hexagon_count, this_hexagon;
int string_count, this_text;
int bytecount, recordcount;
float previous_diameter;
float radius, half_radius, half_sqrt3_radius;
int colours_used = 0;
int rectangle_count_bycolour[9];
unsigned char *this_string[6];
int width, height;
int utfle_len;
int bumped_len;
int draw_background = 1;
int bold;
float ax, ay, bx, by, cx, cy, dx, dy, ex, ey, fx, fy;
struct zint_vector_rect *rect;
struct zint_vector_circle *circ;
struct zint_vector_hexagon *hex;
struct zint_vector_string *str;
emr_header_t emr_header;
emr_eof_t emr_eof;
emr_mapmode_t emr_mapmode;
emr_setworldtransform_t emr_setworldtransform;
emr_createbrushindirect_t emr_createbrushindirect_fg;
emr_createbrushindirect_t emr_createbrushindirect_bg;
emr_createbrushindirect_t emr_createbrushindirect_colour[8]; // Used for colour symbols only
emr_selectobject_t emr_selectobject_fgbrush;
emr_selectobject_t emr_selectobject_bgbrush;
emr_selectobject_t emr_selectobject_colour[8]; // Used for colour symbols only
emr_createpen_t emr_createpen;
emr_selectobject_t emr_selectobject_pen;
emr_rectangle_t background;
emr_settextcolor_t emr_settextcolor;
float fsize;
emr_extcreatefontindirectw_t emr_extcreatefontindirectw;
emr_selectobject_t emr_selectobject_font;
float fsize2;
emr_extcreatefontindirectw_t emr_extcreatefontindirectw2;
emr_selectobject_t emr_selectobject_font2;
int halign;
emr_settextalign_t emr_settextalign;
int halign1;
emr_settextalign_t emr_settextalign1;
int halign2;
emr_settextalign_t emr_settextalign2;
float current_fsize;
int current_halign;
#ifdef _MSC_VER
emr_rectangle_t *rectangle;
emr_ellipse_t *circle;
emr_polygon_t *hexagon;
emr_exttextoutw_t *text;
float *text_fsizes;
int *text_haligns;
#endif
fgred = (16 * ctoi(symbol->fgcolour[0])) + ctoi(symbol->fgcolour[1]);
fggrn = (16 * ctoi(symbol->fgcolour[2])) + ctoi(symbol->fgcolour[3]);
fgblu = (16 * ctoi(symbol->fgcolour[4])) + ctoi(symbol->fgcolour[5]);
bgred = (16 * ctoi(symbol->bgcolour[0])) + ctoi(symbol->bgcolour[1]);
bggrn = (16 * ctoi(symbol->bgcolour[2])) + ctoi(symbol->bgcolour[3]);
bgblu = (16 * ctoi(symbol->bgcolour[4])) + ctoi(symbol->bgcolour[5]);
if (strlen(symbol->bgcolour) > 6) {
if ((ctoi(symbol->bgcolour[6]) == 0) && (ctoi(symbol->bgcolour[7]) == 0)) {
draw_background = 0;
}
}
rectangle_count = count_rectangles(symbol);
circle_count = count_circles(symbol);
hexagon_count = count_hexagons(symbol);
string_count = count_strings(symbol, &fsize, &fsize2, &halign, &halign1, &halign2);
#ifndef _MSC_VER
// Avoid sanitize runtime error by making always non-zero
emr_rectangle_t rectangle[rectangle_count ? rectangle_count : 1];
emr_ellipse_t circle[circle_count ? circle_count : 1];
emr_polygon_t hexagon[hexagon_count ? hexagon_count : 1];
emr_exttextoutw_t text[string_count ? string_count: 1];
float text_fsizes[string_count ? string_count: 1];
int text_haligns[string_count ? string_count: 1];
#else
rectangle = (emr_rectangle_t*) _alloca(rectangle_count * sizeof (emr_rectangle_t));
circle = (emr_ellipse_t*) _alloca(circle_count * sizeof (emr_ellipse_t));
hexagon = (emr_polygon_t*) _alloca(hexagon_count * sizeof (emr_polygon_t));
text = (emr_exttextoutw_t*) _alloca(string_count * sizeof (emr_exttextoutw_t));
text_fsizes = (float *) _alloca(string_count * sizeof (float));
text_haligns = (int *) _alloca(string_count * sizeof (int));
#endif
//Calculate how many coloured rectangles
if (symbol->symbology == BARCODE_ULTRA) {
for (i = 0; i <= 8; i++) {
rectangle_count_bycolour[i] = 0;
}
rect = symbol->vector->rectangles;
while (rect) {
if (rectangle_count_bycolour[rect->colour] == 0) {
colours_used++;
}
rectangle_count_bycolour[rect->colour]++;
rect = rect->next;
}
}
width = (int) ceil(symbol->vector->width);
height = (int) ceil(symbol->vector->height);
/* Header */
emr_header.type = 0x00000001; // EMR_HEADER
emr_header.size = 108; // Including extensions
emr_header.emf_header.bounds.left = 0;
emr_header.emf_header.bounds.right = rotate_angle == 90 || rotate_angle == 270 ? height : width;
emr_header.emf_header.bounds.bottom = rotate_angle == 90 || rotate_angle == 270 ? width : height;
emr_header.emf_header.bounds.top = 0;
emr_header.emf_header.frame.left = 0;
emr_header.emf_header.frame.right = emr_header.emf_header.bounds.right * 30;
emr_header.emf_header.frame.top = 0;
emr_header.emf_header.frame.bottom = emr_header.emf_header.bounds.bottom * 30;
emr_header.emf_header.record_signature = 0x464d4520; // ENHMETA_SIGNATURE
emr_header.emf_header.version = 0x00010000;
if (symbol->symbology == BARCODE_ULTRA) {
emr_header.emf_header.handles = 11; // Number of graphics objects
} else {
emr_header.emf_header.handles = fsize2 != 0.0f ? 5 : 4;
}
emr_header.emf_header.reserved = 0x0000;
emr_header.emf_header.n_description = 0;
emr_header.emf_header.off_description = 0;
emr_header.emf_header.n_pal_entries = 0;
emr_header.emf_header.device.cx = 1000;
emr_header.emf_header.device.cy = 1000;
emr_header.emf_header.millimeters.cx = 300;
emr_header.emf_header.millimeters.cy = 300;
/* HeaderExtension1 */
emr_header.emf_header.cb_pixel_format = 0x0000; // None set
emr_header.emf_header.off_pixel_format = 0x0000; // None set
emr_header.emf_header.b_open_gl = 0x0000; // OpenGL not present
/* HeaderExtension2 */
emr_header.emf_header.micrometers.cx = 0;
emr_header.emf_header.micrometers.cy = 0;
bytecount = 108;
recordcount = 1;
emr_mapmode.type = 0x00000011; // EMR_SETMAPMODE
emr_mapmode.size = 12;
emr_mapmode.mapmode = 0x01; // MM_TEXT
bytecount += 12;
recordcount++;
if (rotate_angle) {
emr_setworldtransform.type = 0x00000023; // EMR_SETWORLDTRANSFORM
emr_setworldtransform.size = 32;
emr_setworldtransform.m11 = rotate_angle == 90 ? 0.0f : rotate_angle == 180 ? -1.0f : 0.0f;
emr_setworldtransform.m12 = rotate_angle == 90 ? 1.0f : rotate_angle == 180 ? 0.0f : -1.0f;
emr_setworldtransform.m21 = rotate_angle == 90 ? -1.0f : rotate_angle == 180 ? 0.0f : 1.0f;
emr_setworldtransform.m22 = rotate_angle == 90 ? 0.0f : rotate_angle == 180 ? -1.0f : 0.0f;
emr_setworldtransform.dx = rotate_angle == 90 ? height : rotate_angle == 180 ? width : 0.0f;
emr_setworldtransform.dy = rotate_angle == 90 ? 0.0f : rotate_angle == 180 ? height : width;
bytecount += 32;
recordcount++;
}
/* Create Brushes */
emr_createbrushindirect_bg.type = 0x00000027; // EMR_CREATEBRUSHINDIRECT
emr_createbrushindirect_bg.size = 24;
emr_createbrushindirect_bg.ih_brush = 1;
emr_createbrushindirect_bg.log_brush.brush_style = 0x0000; // BS_SOLID
emr_createbrushindirect_bg.log_brush.color.red = bgred;
emr_createbrushindirect_bg.log_brush.color.green = bggrn;
emr_createbrushindirect_bg.log_brush.color.blue = bgblu;
emr_createbrushindirect_bg.log_brush.color.reserved = 0;
emr_createbrushindirect_bg.log_brush.brush_hatch = 0x0006; // HS_SOLIDCLR
bytecount += 24;
recordcount++;
if (symbol->symbology == BARCODE_ULTRA) {
for (i = 0; i < 8; i++) {
emr_createbrushindirect_colour[i].type = 0x00000027; // EMR_CREATEBRUSHINDIRECT
emr_createbrushindirect_colour[i].size = 24;
emr_createbrushindirect_colour[i].ih_brush = 2 + i;
emr_createbrushindirect_colour[i].log_brush.brush_style = 0x0000; // BS_SOLID
emr_createbrushindirect_colour[i].log_brush.color.red = colour_to_red(i + 1);
emr_createbrushindirect_colour[i].log_brush.color.green = colour_to_green(i + 1);
emr_createbrushindirect_colour[i].log_brush.color.blue = colour_to_blue(i + 1);
emr_createbrushindirect_colour[i].log_brush.color.reserved = 0;
emr_createbrushindirect_colour[i].log_brush.brush_hatch = 0x0006; // HS_SOLIDCLR
}
bytecount += colours_used * 24;
recordcount += colours_used;
} else {
emr_createbrushindirect_fg.type = 0x00000027; // EMR_CREATEBRUSHINDIRECT
emr_createbrushindirect_fg.size = 24;
emr_createbrushindirect_fg.ih_brush = 2;
emr_createbrushindirect_fg.log_brush.brush_style = 0x0000; // BS_SOLID
emr_createbrushindirect_fg.log_brush.color.red = fgred;
emr_createbrushindirect_fg.log_brush.color.green = fggrn;
emr_createbrushindirect_fg.log_brush.color.blue = fgblu;
emr_createbrushindirect_fg.log_brush.color.reserved = 0;
emr_createbrushindirect_fg.log_brush.brush_hatch = 0x0006; // HS_SOLIDCLR
bytecount += 24;
recordcount++;
}
emr_selectobject_bgbrush.type = 0x00000025; // EMR_SELECTOBJECT
emr_selectobject_bgbrush.size = 12;
emr_selectobject_bgbrush.ih_object = 1;
bytecount += 12;
recordcount++;
if (symbol->symbology == BARCODE_ULTRA) {
for (i = 0; i < 8; i++) {
emr_selectobject_colour[i].type = 0x00000025; // EMR_SELECTOBJECT
emr_selectobject_colour[i].size = 12;
emr_selectobject_colour[i].ih_object = 2 + i;
}
bytecount += colours_used * 12;
recordcount += colours_used;
} else {
emr_selectobject_fgbrush.type = 0x00000025; // EMR_SELECTOBJECT
emr_selectobject_fgbrush.size = 12;
emr_selectobject_fgbrush.ih_object = 2;
bytecount += 12;
recordcount++;
}
/* Create Pens */
emr_createpen.type = 0x00000026; // EMR_CREATEPEN
emr_createpen.size = 28;
emr_createpen.ih_pen = 10;
emr_createpen.log_pen.pen_style = 0x00000005; // PS_NULL
emr_createpen.log_pen.width.x = 1;
emr_createpen.log_pen.width.y = 0; // ignored
emr_createpen.log_pen.color_ref.red = 0;
emr_createpen.log_pen.color_ref.green = 0;
emr_createpen.log_pen.color_ref.blue = 0;
emr_createpen.log_pen.color_ref.reserved = 0;
bytecount += 28;
recordcount++;
emr_selectobject_pen.type = 0x00000025; // EMR_SELECTOBJECT
emr_selectobject_pen.size = 12;
emr_selectobject_pen.ih_object = 10;
bytecount += 12;
recordcount++;
if (draw_background) {
/* Make background from a rectangle */
background.type = 0x0000002b; // EMR_RECTANGLE
background.size = 24;
background.box.top = 0;
background.box.left = 0;
background.box.right = emr_header.emf_header.bounds.right;
background.box.bottom = emr_header.emf_header.bounds.bottom;
bytecount += 24;
recordcount++;
}
//Rectangles
rect = symbol->vector->rectangles;
this_rectangle = 0;
while (rect) {
rectangle[this_rectangle].type = 0x0000002b; // EMR_RECTANGLE
rectangle[this_rectangle].size = 24;
rectangle[this_rectangle].box.top = (int32_t) rect->y;
rectangle[this_rectangle].box.bottom = (int32_t) (rect->y + rect->height);
rectangle[this_rectangle].box.left = (int32_t) rect->x;
rectangle[this_rectangle].box.right = (int32_t) (rect->x + rect->width);
this_rectangle++;
bytecount += 24;
recordcount++;
rect = rect->next;
}
//Circles
previous_diameter = radius = 0.0f;
circ = symbol->vector->circles;
this_circle = 0;
while (circ) {
if (previous_diameter != circ->diameter) {
previous_diameter = circ->diameter;
radius = (float) (0.5 * previous_diameter);
}
circle[this_circle].type = 0x0000002a; // EMR_ELLIPSE
circle[this_circle].size = 24;
circle[this_circle].box.top = (int32_t) (circ->y - radius);
circle[this_circle].box.bottom = (int32_t) (circ->y + radius);
circle[this_circle].box.left = (int32_t) (circ->x - radius);
circle[this_circle].box.right = (int32_t) (circ->x + radius);
this_circle++;
bytecount += 24;
recordcount++;
circ = circ->next;
}
//Hexagons
previous_diameter = radius = half_radius = half_sqrt3_radius = 0.0f;
hex = symbol->vector->hexagons;
this_hexagon = 0;
while (hex) {
hexagon[this_hexagon].type = 0x00000003; // EMR_POLYGON
hexagon[this_hexagon].size = 76;
hexagon[this_hexagon].count = 6;
if (previous_diameter != hex->diameter) {
previous_diameter = hex->diameter;
radius = (float) (0.5 * previous_diameter);
half_radius = (float) (0.25 * previous_diameter);
half_sqrt3_radius = (float) (0.43301270189221932338 * previous_diameter);
}
if ((hex->rotation == 0) || (hex->rotation == 180)) {
ay = hex->y + radius;
by = hex->y + half_radius;
cy = hex->y - half_radius;
dy = hex->y - radius;
ey = hex->y - half_radius;
fy = hex->y + half_radius;
ax = hex->x;
bx = hex->x + half_sqrt3_radius;
cx = hex->x + half_sqrt3_radius;
dx = hex->x;
ex = hex->x - half_sqrt3_radius;
fx = hex->x - half_sqrt3_radius;
} else {
ay = hex->y;
by = hex->y + half_sqrt3_radius;
cy = hex->y + half_sqrt3_radius;
dy = hex->y;
ey = hex->y - half_sqrt3_radius;
fy = hex->y - half_sqrt3_radius;
ax = hex->x - radius;
bx = hex->x - half_radius;
cx = hex->x + half_radius;
dx = hex->x + radius;
ex = hex->x + half_radius;
fx = hex->x - half_radius;
}
hexagon[this_hexagon].a_points_a.x = (int32_t) ax;
hexagon[this_hexagon].a_points_a.y = (int32_t) ay;
hexagon[this_hexagon].a_points_b.x = (int32_t) bx;
hexagon[this_hexagon].a_points_b.y = (int32_t) by;
hexagon[this_hexagon].a_points_c.x = (int32_t) cx;
hexagon[this_hexagon].a_points_c.y = (int32_t) cy;
hexagon[this_hexagon].a_points_d.x = (int32_t) dx;
hexagon[this_hexagon].a_points_d.y = (int32_t) dy;
hexagon[this_hexagon].a_points_e.x = (int32_t) ex;
hexagon[this_hexagon].a_points_e.y = (int32_t) ey;
hexagon[this_hexagon].a_points_f.x = (int32_t) fx;
hexagon[this_hexagon].a_points_f.y = (int32_t) fy;
hexagon[this_hexagon].bounds.top = hexagon[this_hexagon].a_points_d.y;
hexagon[this_hexagon].bounds.bottom = hexagon[this_hexagon].a_points_a.y;
hexagon[this_hexagon].bounds.left = hexagon[this_hexagon].a_points_e.x;
hexagon[this_hexagon].bounds.right = hexagon[this_hexagon].a_points_c.x;
this_hexagon++;
bytecount += 76;
recordcount++;
hex = hex->next;
}
/* Create font records, alignment records and text color */
if (symbol->vector->strings) {
bold = (symbol->output_options & BOLD_TEXT) &&
(!is_extendable(symbol->symbology) || (symbol->output_options & SMALL_TEXT));
memset(&emr_extcreatefontindirectw, 0, sizeof(emr_extcreatefontindirectw));
emr_extcreatefontindirectw.type = 0x00000052; // EMR_EXTCREATEFONTINDIRECTW
emr_extcreatefontindirectw.size = 104;
emr_extcreatefontindirectw.ih_fonts = 11;
emr_extcreatefontindirectw.elw.height = (int32_t) fsize;
emr_extcreatefontindirectw.elw.width = 0; // automatic
emr_extcreatefontindirectw.elw.weight = bold ? 700 : 400;
emr_extcreatefontindirectw.elw.char_set = 0x00; // ANSI_CHARSET
emr_extcreatefontindirectw.elw.out_precision = 0x00; // OUT_DEFAULT_PRECIS
emr_extcreatefontindirectw.elw.clip_precision = 0x00; // CLIP_DEFAULT_PRECIS
emr_extcreatefontindirectw.elw.pitch_and_family = 0x02 | (0x02 << 6); // FF_SWISS | VARIABLE_PITCH
utfle_copy(emr_extcreatefontindirectw.elw.facename, (unsigned char*) "sans-serif", 10);
bytecount += 104;
recordcount++;
emr_selectobject_font.type = 0x00000025; // EMR_SELECTOBJECT
emr_selectobject_font.size = 12;
emr_selectobject_font.ih_object = 11;
bytecount += 12;
recordcount++;
if (fsize2) {
memcpy(&emr_extcreatefontindirectw2, &emr_extcreatefontindirectw, sizeof(emr_extcreatefontindirectw));
emr_extcreatefontindirectw2.ih_fonts = 12;
emr_extcreatefontindirectw2.elw.height = (int32_t) fsize2;
bytecount += 104;
recordcount++;
emr_selectobject_font2.type = 0x00000025; // EMR_SELECTOBJECT
emr_selectobject_font2.size = 12;
emr_selectobject_font2.ih_object = 12;
bytecount += 12;
recordcount++;
}
/* Note select aligns counted below in strings loop */
emr_settextalign.type = 0x00000016; // EMR_SETTEXTALIGN
emr_settextalign.size = 12;
emr_settextalign.text_alignment_mode = 0x0006 | 0x0018; // TA_CENTER | TA_BASELINE
if (halign1) {
emr_settextalign1.type = 0x00000016; // EMR_SETTEXTALIGN
emr_settextalign1.size = 12;
emr_settextalign1.text_alignment_mode = 0x0000 | 0x0018; // TA_LEFT | TA_BASELINE
}
if (halign2) {
emr_settextalign2.type = 0x00000016; // EMR_SETTEXTALIGN
emr_settextalign2.size = 12;
emr_settextalign2.text_alignment_mode = 0x0002 | 0x0018; // TA_RIGHT | TA_BASELINE
}
emr_settextcolor.type = 0x0000018; // EMR_SETTEXTCOLOR
emr_settextcolor.size = 12;
emr_settextcolor.color.red = fgred;
emr_settextcolor.color.green = fggrn;
emr_settextcolor.color.blue = fgblu;
emr_settextcolor.color.reserved = 0;
bytecount += 12;
recordcount++;
}
//Text
this_text = 0;
// Loop over font sizes so that they're grouped together, so only have to select font twice at most
for (current_fsize = fsize; current_fsize; current_fsize = fsize2) {
str = symbol->vector->strings;
current_halign = -1;
while (str) {
if (str->fsize != current_fsize) {
str = str->next;
continue;
}
text_fsizes[this_text] = str->fsize;
text_haligns[this_text] = str->halign;
if (text_haligns[this_text] != current_halign) {
current_halign = text_haligns[this_text];
bytecount += 12;
recordcount++;
}
assert(str->length > 0);
utfle_len = utfle_length(str->text, str->length);
bumped_len = bump_up(utfle_len) * 2;
this_string[this_text] = (unsigned char *) malloc(bumped_len);
memset(this_string[this_text], 0, bumped_len);
text[this_text].type = 0x00000054; // EMR_EXTTEXTOUTW
text[this_text].size = 76 + bumped_len;
text[this_text].bounds.top = 0; // ignored
text[this_text].bounds.left = 0; // ignored
text[this_text].bounds.right = 0xffffffff; // ignored
text[this_text].bounds.bottom = 0xffffffff; // ignored
text[this_text].i_graphics_mode = 0x00000002; // GM_ADVANCED
text[this_text].ex_scale = 1.0f;
text[this_text].ey_scale = 1.0f;
text[this_text].w_emr_text.reference.x = (int32_t) str->x;
text[this_text].w_emr_text.reference.y = (int32_t) str->y;
text[this_text].w_emr_text.chars = utfle_len;
text[this_text].w_emr_text.off_string = 76;
text[this_text].w_emr_text.options = 0;
text[this_text].w_emr_text.rectangle.top = 0;
text[this_text].w_emr_text.rectangle.left = 0;
text[this_text].w_emr_text.rectangle.right = 0xffffffff;
text[this_text].w_emr_text.rectangle.bottom = 0xffffffff;
text[this_text].w_emr_text.off_dx = 0;
utfle_copy(this_string[this_text], str->text, str->length);
bytecount += 76 + bumped_len;
recordcount++;
this_text++;
str = str->next;
}
if (current_fsize == fsize2) {
break;
}
}
/* Create EOF record */
emr_eof.type = 0x0000000e; // EMR_EOF
emr_eof.size = 20; // Assuming no palette entries
emr_eof.n_pal_entries = 0;
emr_eof.off_pal_entries = 0;
emr_eof.size_last = emr_eof.size;
bytecount += 20;
recordcount++;
if (symbol->symbology == BARCODE_MAXICODE) {
bytecount += 5 * sizeof (emr_selectobject_t);
recordcount += 5;
}
/* Put final counts in header */
emr_header.emf_header.bytes = bytecount;
emr_header.emf_header.records = recordcount;
/* Send EMF data to file */
if (symbol->output_options & BARCODE_STDOUT) {
emf_file = stdout;
} else {
emf_file = fopen(symbol->outfile, "wb");
}
if (emf_file == NULL) {
strcpy(symbol->errtxt, "640: Could not open output file");
return ZINT_ERROR_FILE_ACCESS;
}
fwrite(&emr_header, sizeof (emr_header_t), 1, emf_file);
fwrite(&emr_mapmode, sizeof (emr_mapmode_t), 1, emf_file);
if (rotate_angle) {
fwrite(&emr_setworldtransform, sizeof (emr_setworldtransform_t), 1, emf_file);
}
fwrite(&emr_createbrushindirect_bg, sizeof (emr_createbrushindirect_t), 1, emf_file);
if (symbol->symbology == BARCODE_ULTRA) {
for (i = 0; i < 8; i++) {
if (rectangle_count_bycolour[i + 1]) {
fwrite(&emr_createbrushindirect_colour[i], sizeof (emr_createbrushindirect_t), 1, emf_file);
}
}
} else {
fwrite(&emr_createbrushindirect_fg, sizeof (emr_createbrushindirect_t), 1, emf_file);
}
fwrite(&emr_createpen, sizeof (emr_createpen_t), 1, emf_file);
if (symbol->vector->strings) {
fwrite(&emr_extcreatefontindirectw, sizeof (emr_extcreatefontindirectw_t), 1, emf_file);
if (fsize2) {
fwrite(&emr_extcreatefontindirectw2, sizeof (emr_extcreatefontindirectw_t), 1, emf_file);
}
}
fwrite(&emr_selectobject_bgbrush, sizeof (emr_selectobject_t), 1, emf_file);
fwrite(&emr_selectobject_pen, sizeof (emr_selectobject_t), 1, emf_file);
if (draw_background) {
fwrite(&background, sizeof (emr_rectangle_t), 1, emf_file);
}
if (symbol->symbology == BARCODE_ULTRA) {
for(i = 0; i < 8; i++) {
if (rectangle_count_bycolour[i + 1]) {
fwrite(&emr_selectobject_colour[i], sizeof (emr_selectobject_t), 1, emf_file);
rect = symbol->vector->rectangles;
this_rectangle = 0;
while (rect) {
if (rect->colour == i + 1) {
fwrite(&rectangle[this_rectangle], sizeof (emr_rectangle_t), 1, emf_file);
}
this_rectangle++;
rect = rect->next;
}
}
}
} else {
fwrite(&emr_selectobject_fgbrush, sizeof (emr_selectobject_t), 1, emf_file);
// Rectangles
for (i = 0; i < rectangle_count; i++) {
fwrite(&rectangle[i], sizeof (emr_rectangle_t), 1, emf_file);
}
}
// Hexagons
for (i = 0; i < hexagon_count; i++) {
fwrite(&hexagon[i], sizeof (emr_polygon_t), 1, emf_file);
}
// Circles
if (symbol->symbology == BARCODE_MAXICODE) {
// Bullseye needed
for (i = 0; i < circle_count; i++) {
fwrite(&circle[i], sizeof (emr_ellipse_t), 1, emf_file);
if (i < circle_count - 1) {
if (i % 2) {
fwrite(&emr_selectobject_fgbrush, sizeof (emr_selectobject_t), 1, emf_file);
} else {
fwrite(&emr_selectobject_bgbrush, sizeof (emr_selectobject_t), 1, emf_file);
}
}
}
} else {
for (i = 0; i < circle_count; i++) {
fwrite(&circle[i], sizeof (emr_ellipse_t), 1, emf_file);
}
}
// Text
if (string_count > 0) {
fwrite(&emr_selectobject_font, sizeof (emr_selectobject_t), 1, emf_file);
fwrite(&emr_settextcolor, sizeof (emr_settextcolor_t), 1, emf_file);
}
current_fsize = fsize;
current_halign = -1;
for (i = 0; i < string_count; i++) {
if (text_fsizes[i] != current_fsize) {
current_fsize = text_fsizes[i];
fwrite(&emr_selectobject_font2, sizeof (emr_selectobject_t), 1, emf_file);
}
if (text_haligns[i] != current_halign) {
current_halign = text_haligns[i];
if (current_halign == 0) {
fwrite(&emr_settextalign, sizeof (emr_settextalign_t), 1, emf_file);
} else if (current_halign == 1) {
fwrite(&emr_settextalign1, sizeof (emr_settextalign_t), 1, emf_file);
} else {
fwrite(&emr_settextalign2, sizeof (emr_settextalign_t), 1, emf_file);
}
}
fwrite(&text[i], sizeof (emr_exttextoutw_t), 1, emf_file);
fwrite(this_string[i], bump_up(text[i].w_emr_text.chars) * 2, 1, emf_file);
free(this_string[i]);
}
fwrite(&emr_eof, sizeof (emr_eof_t), 1, emf_file);
if (symbol->output_options & BARCODE_STDOUT) {
fflush(emf_file);
} else {
fclose(emf_file);
}
return error_number;
}
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