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uniblock: annihilate RTL glitches, finally #259

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nick black 2020-02-23 07:04:50 -05:00
parent e7cc4a098c
commit 9206329ea7
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GPG Key ID: 5F43400C21CBFACC
1 changed files with 12 additions and 1 deletions
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13
src/demo/unicodeblocks.c
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@ -35,6 +35,14 @@ draw_block(struct ncplane* nn, uint32_t blockstart){
cell_set_fg_rgb(&ur, 0x00, 0x30, 0x57);
cell_set_fg_rgb(&ll, 0x00, 0x30, 0x57);
cell_set_fg_rgb(&lr, 0xea, 0xaa, 0x00);
// see https://github.com/dankamongmen/notcurses/issues/259. we use a random
// (but dark) background for the perimeter to force refreshing on the box,
// when it might otherwise be molested by RTL text. hacky and gross :( FIXME
int rbg = random() % 20;
cell_set_bg(&ul, rbg);
cell_set_bg(&ur, rbg);
cell_set_bg(&ll, rbg);
cell_set_bg(&lr, rbg);
cell_set_fg_rgb(&hl, 255, 255, 255);
cell_set_fg_rgb(&vl, 255, 255, 255);
cell_set_bg_rgb(&hl, 0, 0, 0);
@ -51,7 +59,7 @@ draw_block(struct ncplane* nn, uint32_t blockstart){
int z;
for(z = 0 ; z < CHUNKSIZE ; ++z){
wchar_t w[2] = { blockstart + chunk * CHUNKSIZE + z, L'\0' };
char utf8arr[MB_CUR_MAX * 3 + 1];
char utf8arr[MB_CUR_MAX * 3 + 5];
if(wcswidth(w, INT_MAX) >= 1 && iswgraph(w[0])){
mbstate_t ps;
memset(&ps, 0, sizeof(ps));
@ -66,6 +74,9 @@ draw_block(struct ncplane* nn, uint32_t blockstart){
if(wcwidth(w[0]) < 2){
utf8arr[bwc++] = ' ';
}
utf8arr[bwc++] = 0xe2;
utf8arr[bwc++] = 0x80;
utf8arr[bwc++] = 0x8e;
utf8arr[bwc++] = '\0';
}else{ // don't dump non-printing codepoints
strcpy(utf8arr, " ");