int maxi_png_plot(struct zint_symbol *symbol, int rotate_angle, int data_type)
{
int i, row, column, xposn, yposn;
int image_height, image_width;
char *pixelbuf;
int error_number;
int xoffset, yoffset;
xoffset = symbol->border_width + symbol->whitespace_width;
yoffset = symbol->border_width;
image_width = 300 + (2 * xoffset * 2);
image_height = 300 + (2 * yoffset * 2);
if (!(pixelbuf = (char *) malloc(image_width * image_height))) {
printf("Insifficient memory for pixel buffer");
return ZERROR_ENCODING_PROBLEM;
} else {
for(i = 0; i < (image_width * image_height); i++) {
*(pixelbuf + i) = '0';
}
}
draw_bullseye(pixelbuf, image_width, (2 * xoffset), (2 * yoffset));
for(row = 0; row < symbol->rows; row++) {
yposn = row * 9;
for(column = 0; column < symbol->width; column++) {
xposn = column * 10;
if(module_is_set(symbol, row, column)) {
if(row & 1) {
/* Odd (reduced) row */
xposn += 5;
draw_hexagon(pixelbuf, image_width, xposn + (2 * xoffset), yposn + (2 * yoffset));
} else {
/* Even (full) row */
draw_hexagon(pixelbuf, image_width, xposn + (2 * xoffset), yposn + (2 * yoffset));
}
}
}
}
if(((symbol->output_options & BARCODE_BOX) != 0) || ((symbol->output_options & BARCODE_BIND) != 0)) {
/* boundary bars */
draw_bar(pixelbuf, 0, image_width, 0, symbol->border_width * 2, image_width, image_height);
draw_bar(pixelbuf, 0, image_width, 300 + (symbol->border_width * 2), symbol->border_width * 2, image_width, image_height);
}
if((symbol->output_options & BARCODE_BOX) != 0) {
/* side bars */
draw_bar(pixelbuf, 0, symbol->border_width * 2, 0, image_height, image_width, image_height);
draw_bar(pixelbuf, 300 + ((symbol->border_width + symbol->whitespace_width + symbol->whitespace_width) * 2), symbol->border_width * 2, 0, image_height, image_width, image_height);
}
error_number=png_to_file(symbol, image_height, image_width, pixelbuf, rotate_angle, data_type);
free(pixelbuf);
return error_number;
}
void draw_image() {
cairo_surface_t *surface = cairo_image_surface_create (CAIRO_FORMAT_ARGB32,
cfg.output_pixels_x, cfg.output_pixels_y);
cairo_t *cr = cairo_create (surface);
cairo_set_line_width(cr,0.1);
cairo_set_source_rgb(cr, 0, 0, 1.0);
cairo_set_font_size(cr, 0.5);
setup_transform(cr);
hex_t *h=NULL;
while ( (h=(hex_t*)utarray_next(cfg.hexv,h))) draw_hexagon(cr,h);
cairo_destroy (cr);
cairo_surface_write_to_png (surface, cfg.outfile);
cairo_surface_destroy (surface);
}
/* draw 7 hexagons */
void draw_hexplane(void)
{
if(wflag) {
glPushMatrix();
glRotatef(-0.5*a, 0.0, 0.0, 1.0);
}
/* center , <0, 0, 0> */
draw_hexagon();
/* 12 o'clock, <0, 4, 0> */
glTranslatef(0., 4., 0.);
draw_hexagon();
/* 10 o'clock, <-3.464, 2, 0> */
glTranslatef(-3.464, -2., 0.);
draw_hexagon();
/* 8 o'clock, <-3.464, -2, 0> */
glTranslatef(0., -4., 0.);
draw_hexagon();
/* 6 o'clock, <0, -4, 0> */
glTranslatef(3.464, -2., 0.);
draw_hexagon();
/* 4 o'clock, <3.464, -2, 0> */
glTranslatef(3.464, 2., 0.);
draw_hexagon();
/* 2 o'clock, <3.464, 2, 0> */
glTranslatef(0., 4., 0.);
draw_hexagon();
if(wflag)
glPopMatrix();
}