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40 lines
1.2 KiB
C
40 lines
1.2 KiB
C
#include "demo.h"
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int qrcode_demo(struct notcurses* nc, uint64_t startns){
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(void)startns;
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if(!notcurses_canutf8(nc)){
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return 0;
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}
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#ifdef USE_QRCODEGEN
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char data[128];
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unsigned dimy, dimx;
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struct ncplane *stdn = notcurses_stddim_yx(nc, &dimy, &dimx);
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ncplane_erase(stdn);
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struct ncplane* n = ncplane_dup(stdn, NULL);
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for(int i = 0 ; i < 1024 ; ++i){
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ncplane_erase(n);
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size_t len = rand() % sizeof(data) + 1;
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size_t done = 0;
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// done this tedious way because getrand() doesn't exist on freebsd 11
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while(done < len){
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long r = rand();
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memcpy(data + done, &r, sizeof(r));
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done += sizeof(r);
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}
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ncplane_home(n);
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unsigned y = dimy, x = dimx;
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ncplane_home(n);
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int qlen = ncplane_qrcode(n, &y, &x, data, len);
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if(qlen > 0){ // FIXME can fail due to being too large for display; distinguish this case
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ncplane_move_yx(n, (dimy - y) / 2, (dimx - x) / 2);
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ncplane_home(n);
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ncplane_set_fg_rgb8(n, rand() % 255 + 1, rand() % 255 + 1, rand() % 255 + 1);
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DEMO_RENDER(nc);
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}
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}
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ncplane_mergedown_simple(n, stdn); // leave the last one on-screen
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ncplane_destroy(n);
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#endif
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return 0;
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}
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