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notcurses/tests/wide.cpp
nick black ed0d9d8a8e Wide unit tests; test other side
2020-08-20 21:32:31 -04:00

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#include <array>
#include <cstdlib>
#include "main.h"
#include "internal.h"
const char SNAKE[] = "\xf0\x9f\x90\x8d"; // U+1F40D SNAKE
const char SCORPION[] = "\xf0\x9f\xa6\x82"; // U+1F982 SCORPION
const char FROG[] = "\xf0\x9f\x90\xb8"; // U+1F438 FROG FACE
TEST_CASE("Wide") {
if(!enforce_utf8()){
return;
}
auto nc_ = testing_notcurses();
if(!nc_){
return;
}
struct ncplane* n_ = notcurses_stdplane(nc_);
REQUIRE(n_);
// Verify we can emit a wide character, and it advances the cursor by 2
SUBCASE("EmitWideAsian") {
const char* w = "\u5168";
int sbytes = 0;
CHECK(0 < ncplane_putegc(n_, w, &sbytes));
int x, y;
ncplane_cursor_yx(n_, &y, &x);
CHECK(0 == y);
CHECK(2 == x);
CHECK(0 == notcurses_render(nc_));
}
// Verify a wide character is rejected on the last column
SUBCASE("RejectWideAsian") {
const char* w = "\u5168";
int sbytes = 0;
int dimx;
ncplane_dim_yx(n_, nullptr, &dimx);
CHECK(0 < ncplane_putegc_yx(n_, 0, dimx - 3, w, &sbytes));
int x, y;
ncplane_cursor_yx(n_, &y, &x);
CHECK(0 == y);
CHECK(dimx - 1 == x);
// now it ought be rejected
CHECK(0 > ncplane_putegc(n_, w, &sbytes));
CHECK(0 == y);
CHECK(dimx - 1 == x);
CHECK(0 == notcurses_render(nc_));
}
// half-width, double-width, huge-yet-narrow, all that crap
SUBCASE("PlaneAtCursorInsane"){
const char EGC0[] = "\uffe0"; // fullwidth cent sign ￠
const char EGC1[] = "\u00c5"; // neutral A with ring above Å
const char EGC2[] = "\u20a9"; // half-width won ₩
const char EGC3[] = "\u212b"; // ambiguous angstrom Å
const char EGC4[] = "\ufdfd"; // neutral yet huge bismillah ﷽
std::array<cell, 5> tcells;
for(auto & tcell : tcells){
cell_init(&tcell);
}
REQUIRE(1 < cell_load(n_, &tcells[0], EGC0));
REQUIRE(1 < cell_load(n_, &tcells[1], EGC1));
REQUIRE(1 < cell_load(n_, &tcells[2], EGC2));
REQUIRE(1 < cell_load(n_, &tcells[3], EGC3));
REQUIRE(1 < cell_load(n_, &tcells[4], EGC4));
for(auto & tcell : tcells){
REQUIRE(0 < ncplane_putc(n_, &tcell));
}
CHECK(0 == notcurses_render(nc_));
int x = 0;
for(auto & tcell : tcells){
CHECK(0 == ncplane_cursor_move_yx(n_, 0, x));
cell testcell = CELL_TRIVIAL_INITIALIZER;
REQUIRE(0 < ncplane_at_cursor_cell(n_, &testcell));
CHECK(!strcmp(cell_extended_gcluster(n_, &tcell), cell_extended_gcluster(n_, &testcell)));
CHECK(0 == testcell.stylemask);
wchar_t w;
REQUIRE(0 < mbtowc(&w, cell_extended_gcluster(n_, &tcell), MB_CUR_MAX));
if(wcwidth(w) == 2){
CHECK(CELL_WIDEASIAN_MASK == testcell.channels);
++x;
}else{
CHECK(0 == testcell.channels);
}
++x;
}
}
// Placing a wide char to the immediate left of any other char ought obliterate
// that cell.
SUBCASE("WideCharAnnihilatesRight") {
const char* w = FROG;
const char* wbashed = SCORPION;
const char bashed = 'X';
int sbytes = 0;
CHECK(0 < ncplane_putegc_yx(n_, 0, 1, wbashed, &sbytes));
CHECK(0 < ncplane_putsimple_yx(n_, 1, 1, bashed));
int x, y;
ncplane_cursor_yx(n_, &y, &x);
CHECK(1 == y);
CHECK(2 == x);
CHECK(0 < ncplane_putegc_yx(n_, 0, 0, w, &sbytes));
CHECK(0 < ncplane_putegc_yx(n_, 1, 0, w, &sbytes));
cell c = CELL_TRIVIAL_INITIALIZER;
ncplane_at_yx_cell(n_, 0, 0, &c);
CHECK(0 == strcmp(cell_extended_gcluster(n_, &c), FROG));
ncplane_at_yx_cell(n_, 0, 1, &c);
CHECK(mbswidth(FROG) == 1 + cell_double_wide_p(&c)); // should be wide
ncplane_at_yx_cell(n_, 0, 2, &c);
CHECK(0 == c.gcluster); // should be nothing
ncplane_at_yx_cell(n_, 1, 0, &c);
CHECK(0 == strcmp(cell_extended_gcluster(n_, &c), FROG));
ncplane_at_yx_cell(n_, 1, 1, &c);
CHECK(mbswidth(FROG) == 1 + cell_double_wide_p(&c)); //should be wide
ncplane_at_yx_cell(n_, 0, 2, &c);
CHECK(0 == c.gcluster);
CHECK(0 == notcurses_render(nc_)); // should be nothing
}
// Placing a wide char on the right half of a wide char ought obliterate the
// original wide char.
SUBCASE("WideCharAnnihilatesWideLeft") {
const char* w = SNAKE;
const char* wbashed = SCORPION;
int sbytes = 0;
int cols1 = ncplane_putegc_yx(n_, 0, 0, wbashed, &sbytes);
CHECK(0 < cols1);
int cols2 = ncplane_putegc_yx(n_, 0, 1, w, &sbytes);
CHECK(0 < cols2);
int x, y;
ncplane_cursor_yx(n_, &y, &x);
CHECK(0 == y);
CHECK(1 + cols2 == x);
cell c = CELL_TRIVIAL_INITIALIZER;
ncplane_at_yx_cell(n_, 0, 0, &c);
if(cols1 > 1){
CHECK(0 == c.gcluster); // should be nothing
}
ncplane_at_yx_cell(n_, 0, 1, &c);
CHECK(0 == strcmp(cell_extended_gcluster(n_, &c), SNAKE));
ncplane_at_yx_cell(n_, 0, 2, &c);
CHECK(mbswidth(SNAKE) == 1 + cell_double_wide_p(&c)); // should be wide
CHECK(0 == notcurses_render(nc_));
}
// Placing a normal char on either half of a wide char ought obliterate
// the original wide char.
SUBCASE("WideCharsAnnihilated") {
const char cc = 'X';
const char* wbashedl = SNAKE;
const char* wbashedr = SCORPION;
int sbytes = 0;
CHECK(0 < ncplane_putegc_yx(n_, 0, 0, wbashedl, &sbytes));
CHECK(0 < ncplane_putegc_yx(n_, 0, 2, wbashedr, &sbytes));
CHECK(1 == ncplane_putsimple_yx(n_, 0, 1, cc));
CHECK(1 == ncplane_putsimple_yx(n_, 0, 2, cc));
int x, y;
ncplane_cursor_yx(n_, &y, &x);
CHECK(0 == y);
CHECK(3 == x);
cell c = CELL_TRIVIAL_INITIALIZER;
ncplane_at_yx_cell(n_, 0, 0, &c);
if(mbswidth(wbashedl) > 1){
CHECK(0 == c.gcluster); // should be nothing
}
ncplane_at_yx_cell(n_, 0, 1, &c);
CHECK(cc == c.gcluster); // should be 'X'
ncplane_at_yx_cell(n_, 0, 2, &c);
CHECK(cc == c.gcluster); // should be 'X'
ncplane_at_yx_cell(n_, 0, 3, &c);
if(mbswidth(wbashedr) > 1){
CHECK(0 == c.gcluster); // should be nothing
}
CHECK(0 == notcurses_render(nc_));
}
// But placing something to the immediate right of any glyph, that is not a
// problem. Ensure it is so.
SUBCASE("AdjacentCharsSafe") {
const char cc = 'X';
const char* wsafel = SNAKE;
const char* wsafer = SCORPION;
int sbytes = 0;
CHECK(0 < ncplane_putegc_yx(n_, 0, 0, wsafel, &sbytes));
CHECK(0 < ncplane_putegc_yx(n_, 0, 3, wsafer, &sbytes));
CHECK(1 == ncplane_putsimple_yx(n_, 0, 2, cc));
int x, y;
ncplane_cursor_yx(n_, &y, &x);
CHECK(0 == y);
CHECK(3 == x);
cell c = CELL_TRIVIAL_INITIALIZER;
ncplane_at_yx_cell(n_, 0, 0, &c);
CHECK(0 == strcmp(cell_extended_gcluster(n_, &c), SNAKE));
ncplane_at_yx_cell(n_, 0, 1, &c);
CHECK(mbswidth(SNAKE) == 1 + cell_double_wide_p(&c));
ncplane_at_yx_cell(n_, 0, 2, &c);
CHECK(cc == c.gcluster); // should be 'X'
ncplane_at_yx_cell(n_, 0, 3, &c);
CHECK(0 == strcmp(cell_extended_gcluster(n_, &c), SCORPION));
ncplane_at_yx_cell(n_, 0, 4, &c);
CHECK(mbswidth(SCORPION) == 1 + cell_double_wide_p(&c));
CHECK(0 == notcurses_render(nc_));
}
SUBCASE("BoxedWideGlyph") {
struct ncplane* ncp = ncplane_new(nc_, 3, 4, 0, 0, nullptr);
REQUIRE(ncp);
int dimx, dimy;
ncplane_dim_yx(n_, &dimy, &dimx);
CHECK(0 == ncplane_rounded_box_sized(ncp, 0, 0, 3, 4, 0));
CHECK(mbswidth(SCORPION) == ncplane_putegc_yx(ncp, 1, 1, SCORPION, nullptr));
CHECK(0 == notcurses_render(nc_));
cell c = CELL_TRIVIAL_INITIALIZER;
REQUIRE(0 < ncplane_at_yx_cell(ncp, 1, 0, &c));
CHECK(!strcmp(cell_extended_gcluster(ncp, &c), "│"));
cell_release(ncp, &c);
char* egc = notcurses_at_yx(nc_, 1, 0, &c.stylemask, &c.channels);
REQUIRE(egc);
CHECK(!strcmp(egc, "│"));
free(egc);
REQUIRE(0 < ncplane_at_yx_cell(ncp, 1, 3, &c));
CHECK(!strcmp(cell_extended_gcluster(ncp, &c), "│"));
cell_release(ncp, &c);
egc = notcurses_at_yx(nc_, 1, 3, &c.stylemask, &c.channels);
REQUIRE(egc);
CHECK(!strcmp(egc, "│"));
free(egc);
CHECK(0 == ncplane_destroy(ncp));
}
SUBCASE("RenderWides") {
CHECK(0 <= ncplane_putstr(n_, "\xe5\xbd\xa2\xe5\x85\xa8"));
cell c = CELL_TRIVIAL_INITIALIZER;
ncplane_at_yx_cell(n_, 0, 0, &c);
CHECK(cell_double_wide_p(&c));
ncplane_at_yx_cell(n_, 0, 1, &c);
CHECK(cell_double_wide_p(&c));
ncplane_at_yx_cell(n_, 0, 2, &c);
CHECK(cell_double_wide_p(&c));
ncplane_at_yx_cell(n_, 0, 3, &c);
CHECK(cell_double_wide_p(&c));
ncplane_at_yx_cell(n_, 0, 4, &c);
CHECK(!cell_double_wide_p(&c));
REQUIRE(0 == notcurses_render(nc_));
notcurses_at_yx(nc_, 0, 0, &c.stylemask, &c.channels);
CHECK(0 != (c.channels & 0x8000000080000000ull));
notcurses_at_yx(nc_, 0, 1, &c.stylemask, &c.channels);
CHECK(0 != (c.channels & 0x8000000080000000ull));
notcurses_at_yx(nc_, 0, 2, &c.stylemask, &c.channels);
CHECK(0 != (c.channels & 0x8000000080000000ull));
notcurses_at_yx(nc_, 0, 3, &c.stylemask, &c.channels);
CHECK(0 != (c.channels & 0x8000000080000000ull));
notcurses_at_yx(nc_, 0, 4, &c.stylemask, &c.channels);
CHECK(!(c.channels & 0x8000000080000000ull));
}
// If an ncplane is moved atop the right half of a wide glyph, the entire
// glyph should be oblitrated.
SUBCASE("PlaneStompsWideGlyph"){
cell c = CELL_TRIVIAL_INITIALIZER;
char* egc;
// print two wide glyphs on the standard plane
int y, x;
ncplane_yx(n_, &y, &x);
CHECK(0 == y);
CHECK(0 == x);
CHECK(3 == ncplane_putstr(n_, "\xe5\x85\xa8"));
ncplane_cursor_yx(n_, &y, &x);
CHECK(0 == y);
CHECK(2 == x);
CHECK(3 == ncplane_putstr(n_, "\xe5\xbd\xa2"));
ncplane_cursor_yx(n_, &y, &x);
CHECK(0 == y);
CHECK(4 == x);
CHECK(!notcurses_render(nc_));
// should be wide char 1
REQUIRE(3 == ncplane_at_yx_cell(n_, 0, 0, &c));
CHECK(!strcmp("\xe5\x85\xa8", cell_extended_gcluster(n_, &c)));
CHECK(cell_double_wide_p(&c));
egc = notcurses_at_yx(nc_, 0, 0, &c.stylemask, &c.channels);
REQUIRE(egc);
CHECK(!strcmp("\xe5\x85\xa8", egc));
CHECK(cell_double_wide_p(&c));
free(egc);
cell_init(&c);
// should be wide char 1 right side
REQUIRE(0 == ncplane_at_yx_cell(n_, 0, 1, &c));
CHECK(!strcmp("", cell_extended_gcluster(n_, &c)));
CHECK(cell_double_wide_p(&c));
egc = notcurses_at_yx(nc_, 0, 1, &c.stylemask, &c.channels);
REQUIRE(egc);
CHECK(!strcmp("", egc));
CHECK(cell_double_wide_p(&c));
free(egc);
cell_init(&c);
// should be wide char 2
REQUIRE(3 == ncplane_at_yx_cell(n_, 0, 2, &c));
CHECK(!strcmp("\xe5\xbd\xa2", cell_extended_gcluster(n_, &c)));
CHECK(cell_double_wide_p(&c));
egc = notcurses_at_yx(nc_, 0, 2, &c.stylemask, &c.channels);
REQUIRE(egc);
CHECK(!strcmp("\xe5\xbd\xa2", egc));
CHECK(cell_double_wide_p(&c));
free(egc);
cell_init(&c);
// should be wide char 2 right side
CHECK(0 == ncplane_at_yx_cell(n_, 0, 3, &c));
CHECK(!strcmp("", cell_extended_gcluster(n_, &c)));
CHECK(cell_double_wide_p(&c));
egc = notcurses_at_yx(nc_, 0, 3, &c.stylemask, &c.channels);
REQUIRE(egc);
CHECK(!strcmp("", egc));
CHECK(cell_double_wide_p(&c));
free(egc);
cell_init(&c);
struct ncplane* n = ncplane_new(nc_, 1, 2, 0, 1, nullptr);
REQUIRE(n);
CHECK(0 < ncplane_putstr(n, "AB"));
CHECK(!notcurses_render(nc_));
// should be nothing, having been stomped
egc = notcurses_at_yx(nc_, 0, 0, &c.stylemask, &c.channels);
REQUIRE(egc);
CHECK(0 == strcmp(" ", egc));
free(egc);
cell_init(&c);
// should be character from higher plane
egc = notcurses_at_yx(nc_, 0, 1, &c.stylemask, &c.channels);
REQUIRE(egc);
CHECK(0 == strcmp("A", egc));
free(egc);
cell_init(&c);
egc = notcurses_at_yx(nc_, 0, 2, &c.stylemask, &c.channels);
REQUIRE(egc);
CHECK(0 == strcmp("B", egc));
free(egc);
cell_init(&c);
// should be nothing, having been stomped
egc = notcurses_at_yx(nc_, 0, 3, &c.stylemask, &c.channels);
REQUIRE(egc);
CHECK(0 == strcmp("", egc));
free(egc);
cell_init(&c);
CHECK(0 == ncplane_destroy(n));
}
// Render a translucent plane atop a wide glyph, and check the colors on both
// cells. See https://github.com/dankamongmen/notcurses/issues/362.
SUBCASE("OverWide") {
struct ncplane* p = ncplane_new(nc_, 3, 4, 0, 0, nullptr);
REQUIRE(nullptr != p);
cell c = CELL_SIMPLE_INITIALIZER('X');
CHECK(0 == ncplane_perimeter(p, &c, &c, &c, &c, &c, &c, 0));
ncplane_set_bg_rgb(n_, 0x20, 0x20, 0x20);
int sbytes;
CHECK(2 == ncplane_putegc_yx(n_, 1, 1, "六", &sbytes));
uint64_t channels = 0;
channels_set_bg_alpha(&channels, CELL_ALPHA_BLEND);
channels_set_bg_rgb(&channels, 0x80, 0xf0, 0x10);
CHECK(1 == ncplane_set_base(p, " ", 0, channels));
CHECK(0 == notcurses_render(nc_));
uint16_t stylemask;
uint64_t chanleft, chanright;
char* egc = notcurses_at_yx(nc_, 1, 1, &stylemask, &chanleft);
REQUIRE(nullptr != egc);
CHECK(0 == strcmp(" ", egc));
free(egc);
egc = notcurses_at_yx(nc_, 1, 2, &stylemask, &chanright);
REQUIRE(nullptr != egc);
CHECK(0 == strcmp(" ", egc));
free(egc);
cell cl = CELL_TRIVIAL_INITIALIZER, cr = CELL_TRIVIAL_INITIALIZER;
CHECK(3 == ncplane_at_yx_cell(n_, 1, 1, &cl));
CHECK(0 == strcmp("六", cell_extended_gcluster(n_, &cl)));
CHECK(0 == ncplane_at_yx_cell(n_, 1, 2, &cr));
REQUIRE(cell_simple_p(&cr));
CHECK(0 == cr.gcluster);
cell_release(n_, &cl);
cell_release(n_, &cr);
CHECK(chanright == chanleft);
ncplane_destroy(p);
}
// drag a plane of narrow chars across a plane of wide glyphs
SUBCASE("NarrowPlaneAtopWide") {
notcurses_cursor_disable(nc_);
CHECK(0 == ncplane_set_fg_rgb(n_, 0xff, 0, 0xff));
// start the 1x4 top plane at 0, 4
struct ncplane* topp = ncplane_new(nc_, 1, 4, 0, 4, nullptr);
REQUIRE(nullptr != topp);
CHECK(0 == ncplane_set_bg_rgb(topp, 0, 0xff, 0));
CHECK(4 == ncplane_putstr(topp, "abcd"));
CHECK(12 == ncplane_putstr(n_, "六六六六"));
CHECK(0 == notcurses_render(nc_));
uint16_t stylemask;
uint64_t channels;
char* egc;
uint64_t widechans = ncplane_channels(n_) | CELL_WIDEASIAN_MASK;
uint64_t narchans = ncplane_channels(topp);
REQUIRE((egc = notcurses_at_yx(nc_, 0, 0, &stylemask, &channels)));
CHECK(0 == strcmp(egc, "六"));
CHECK(widechans == channels);
free(egc);
REQUIRE((egc = notcurses_at_yx(nc_, 0, 1, &stylemask, &channels)));
CHECK(0 == strcmp(egc, ""));
free(egc);
REQUIRE((egc = notcurses_at_yx(nc_, 0, 2, &stylemask, &channels)));
CHECK(0 == strcmp(egc, "六"));
CHECK(widechans == channels);
free(egc);
REQUIRE((egc = notcurses_at_yx(nc_, 0, 3, &stylemask, &channels)));
CHECK(0 == strcmp(egc, ""));
free(egc);
REQUIRE((egc = notcurses_at_yx(nc_, 0, 4, &stylemask, &channels)));
CHECK(0 == strcmp(egc, "a"));
CHECK(narchans == channels);
free(egc);
REQUIRE((egc = notcurses_at_yx(nc_, 0, 5, &stylemask, &channels)));
CHECK(0 == strcmp(egc, "b"));
CHECK(narchans == channels);
free(egc);
REQUIRE((egc = notcurses_at_yx(nc_, 0, 6, &stylemask, &channels)));
CHECK(0 == strcmp(egc, "c"));
CHECK(narchans == channels);
free(egc);
REQUIRE((egc = notcurses_at_yx(nc_, 0, 7, &stylemask, &channels)));
CHECK(0 == strcmp(egc, "d"));
CHECK(narchans == channels);
free(egc);
CHECK(0 == ncplane_move_yx(topp, 0, 3));
CHECK(0 == notcurses_render(nc_));
REQUIRE((egc = notcurses_at_yx(nc_, 0, 0, &stylemask, &channels)));
CHECK(0 == strcmp(egc, "六"));
CHECK(widechans == channels);
free(egc);
REQUIRE((egc = notcurses_at_yx(nc_, 0, 1, &stylemask, &channels)));
CHECK(0 == strcmp(egc, ""));
free(egc);
REQUIRE((egc = notcurses_at_yx(nc_, 0, 2, &stylemask, &channels)));
CHECK(0 == strcmp(egc, " "));
free(egc);
REQUIRE((egc = notcurses_at_yx(nc_, 0, 3, &stylemask, &channels)));
CHECK(0 == strcmp(egc, "a"));
CHECK(narchans == channels);
free(egc);
REQUIRE((egc = notcurses_at_yx(nc_, 0, 4, &stylemask, &channels)));
CHECK(0 == strcmp(egc, "b"));
CHECK(narchans == channels);
free(egc);
REQUIRE((egc = notcurses_at_yx(nc_, 0, 5, &stylemask, &channels)));
CHECK(0 == strcmp(egc, "c"));
CHECK(narchans == channels);
free(egc);
REQUIRE((egc = notcurses_at_yx(nc_, 0, 6, &stylemask, &channels)));
CHECK(0 == strcmp(egc, "d"));
CHECK(narchans == channels);
free(egc);
REQUIRE((egc = notcurses_at_yx(nc_, 0, 7, &stylemask, &channels)));
CHECK(0 == strcmp(egc, ""));
free(egc);
CHECK(0 == ncplane_move_yx(topp, 0, 2));
CHECK(0 == notcurses_render(nc_));
REQUIRE((egc = notcurses_at_yx(nc_, 0, 0, &stylemask, &channels)));
CHECK(0 == strcmp(egc, "六"));
CHECK(widechans == channels);
free(egc);
REQUIRE((egc = notcurses_at_yx(nc_, 0, 1, &stylemask, &channels)));
CHECK(0 == strcmp(egc, ""));
free(egc);
REQUIRE((egc = notcurses_at_yx(nc_, 0, 2, &stylemask, &channels)));
CHECK(0 == strcmp(egc, "a"));
CHECK(narchans == channels);
free(egc);
REQUIRE((egc = notcurses_at_yx(nc_, 0, 3, &stylemask, &channels)));
CHECK(0 == strcmp(egc, "b"));
CHECK(narchans == channels);
free(egc);
REQUIRE((egc = notcurses_at_yx(nc_, 0, 4, &stylemask, &channels)));
CHECK(0 == strcmp(egc, "c"));
CHECK(narchans == channels);
free(egc);
REQUIRE((egc = notcurses_at_yx(nc_, 0, 5, &stylemask, &channels)));
CHECK(0 == strcmp(egc, "d"));
CHECK(narchans == channels);
free(egc);
REQUIRE((egc = notcurses_at_yx(nc_, 0, 6, &stylemask, &channels)));
CHECK(0 == strcmp(egc, "六"));
CHECK(widechans == channels);
free(egc);
REQUIRE((egc = notcurses_at_yx(nc_, 0, 7, &stylemask, &channels)));
CHECK(0 == strcmp(egc, ""));
free(egc);
CHECK(0 == ncplane_move_yx(topp, 0, 1));
CHECK(0 == notcurses_render(nc_));
REQUIRE((egc = notcurses_at_yx(nc_, 0, 0, &stylemask, &channels)));
CHECK(0 == strcmp(egc, " "));
free(egc);
REQUIRE((egc = notcurses_at_yx(nc_, 0, 1, &stylemask, &channels)));
CHECK(0 == strcmp(egc, "a"));
CHECK(narchans == channels);
free(egc);
REQUIRE((egc = notcurses_at_yx(nc_, 0, 2, &stylemask, &channels)));
CHECK(0 == strcmp(egc, "b"));
CHECK(narchans == channels);
free(egc);
REQUIRE((egc = notcurses_at_yx(nc_, 0, 3, &stylemask, &channels)));
CHECK(0 == strcmp(egc, "c"));
CHECK(narchans == channels);
free(egc);
REQUIRE((egc = notcurses_at_yx(nc_, 0, 4, &stylemask, &channels)));
CHECK(0 == strcmp(egc, "d"));
CHECK(narchans == channels);
free(egc);
REQUIRE((egc = notcurses_at_yx(nc_, 0, 5, &stylemask, &channels)));
CHECK(0 == strcmp(egc, ""));
free(egc);
REQUIRE((egc = notcurses_at_yx(nc_, 0, 6, &stylemask, &channels)));
CHECK(0 == strcmp(egc, "六"));
CHECK(widechans == channels);
free(egc);
REQUIRE((egc = notcurses_at_yx(nc_, 0, 7, &stylemask, &channels)));
CHECK(0 == strcmp(egc, ""));
free(egc);
CHECK(0 == ncplane_move_yx(topp, 0, 0));
CHECK(0 == notcurses_render(nc_));
REQUIRE((egc = notcurses_at_yx(nc_, 0, 0, &stylemask, &channels)));
CHECK(0 == strcmp(egc, "a"));
CHECK(narchans == channels);
free(egc);
REQUIRE((egc = notcurses_at_yx(nc_, 0, 1, &stylemask, &channels)));
CHECK(0 == strcmp(egc, "b"));
CHECK(narchans == channels);
free(egc);
REQUIRE((egc = notcurses_at_yx(nc_, 0, 2, &stylemask, &channels)));
CHECK(0 == strcmp(egc, "c"));
CHECK(narchans == channels);
free(egc);
REQUIRE((egc = notcurses_at_yx(nc_, 0, 3, &stylemask, &channels)));
CHECK(0 == strcmp(egc, "d"));
CHECK(narchans == channels);
free(egc);
REQUIRE((egc = notcurses_at_yx(nc_, 0, 4, &stylemask, &channels)));
CHECK(0 == strcmp(egc, "六"));
CHECK(widechans == channels);
free(egc);
REQUIRE((egc = notcurses_at_yx(nc_, 0, 5, &stylemask, &channels)));
CHECK(0 == strcmp(egc, ""));
free(egc);
REQUIRE((egc = notcurses_at_yx(nc_, 0, 6, &stylemask, &channels)));
CHECK(0 == strcmp(egc, "六"));
CHECK(widechans == channels);
free(egc);
REQUIRE((egc = notcurses_at_yx(nc_, 0, 7, &stylemask, &channels)));
CHECK(0 == strcmp(egc, ""));
free(egc);
ncplane_destroy(topp);
}
// drag a plane of wide glyphs across a plane of wide glyphs
SUBCASE("WidePlaneAtopWide") {
CHECK(0 == ncplane_set_fg_rgb(n_, 0xff, 0, 0xff));
// start the 1x4 top plane at 0, 4
struct ncplane* topp = ncplane_new(nc_, 1, 4, 0, 4, nullptr);
REQUIRE(nullptr != topp);
CHECK(0 == ncplane_set_bg_rgb(topp, 0, 0xff, 0));
CHECK(6 == ncplane_putstr(topp, "次次"));
CHECK(0 == ncplane_cursor_move_yx(n_, 0, 0));
CHECK(12 == ncplane_putstr(n_, "六六六六"));
CHECK(0 == notcurses_render(nc_));
uint16_t stylemask;
uint64_t channels;
char* egc;
REQUIRE((egc = notcurses_at_yx(nc_, 0, 0, &stylemask, &channels)));
CHECK(0 == strcmp(egc, "六"));
free(egc);
REQUIRE((egc = notcurses_at_yx(nc_, 0, 1, &stylemask, &channels)));
CHECK(0 == strcmp(egc, ""));
free(egc);
REQUIRE((egc = notcurses_at_yx(nc_, 0, 2, &stylemask, &channels)));
CHECK(0 == strcmp(egc, "六"));
free(egc);
REQUIRE((egc = notcurses_at_yx(nc_, 0, 3, &stylemask, &channels)));
CHECK(0 == strcmp(egc, ""));
free(egc);
REQUIRE((egc = notcurses_at_yx(nc_, 0, 4, &stylemask, &channels)));
CHECK(0 == strcmp(egc, "次"));
free(egc);
REQUIRE((egc = notcurses_at_yx(nc_, 0, 5, &stylemask, &channels)));
CHECK(0 == strcmp(egc, ""));
free(egc);
REQUIRE((egc = notcurses_at_yx(nc_, 0, 6, &stylemask, &channels)));
CHECK(0 == strcmp(egc, "次"));
free(egc);
REQUIRE((egc = notcurses_at_yx(nc_, 0, 7, &stylemask, &channels)));
CHECK(0 == strcmp(egc, ""));
free(egc);
CHECK(0 == ncplane_move_yx(topp, 0, 3));
CHECK(0 == notcurses_render(nc_));
REQUIRE((egc = notcurses_at_yx(nc_, 0, 0, &stylemask, &channels)));
CHECK(0 == strcmp(egc, "六"));
free(egc);
REQUIRE((egc = notcurses_at_yx(nc_, 0, 1, &stylemask, &channels)));
CHECK(0 == strcmp(egc, ""));
free(egc);
REQUIRE((egc = notcurses_at_yx(nc_, 0, 2, &stylemask, &channels)));
CHECK(0 == strcmp(egc, " "));
free(egc);
REQUIRE((egc = notcurses_at_yx(nc_, 0, 3, &stylemask, &channels)));
CHECK(0 == strcmp(egc, "次"));
free(egc);
REQUIRE((egc = notcurses_at_yx(nc_, 0, 4, &stylemask, &channels)));
CHECK(0 == strcmp(egc, ""));
free(egc);
REQUIRE((egc = notcurses_at_yx(nc_, 0, 5, &stylemask, &channels)));
CHECK(0 == strcmp(egc, "次"));
free(egc);
REQUIRE((egc = notcurses_at_yx(nc_, 0, 6, &stylemask, &channels)));
CHECK(0 == strcmp(egc, ""));
free(egc);
REQUIRE((egc = notcurses_at_yx(nc_, 0, 7, &stylemask, &channels)));
CHECK(0 == strcmp(egc, ""));
free(egc);
CHECK(0 == ncplane_move_yx(topp, 0, 2));
CHECK(0 == notcurses_render(nc_));
REQUIRE((egc = notcurses_at_yx(nc_, 0, 0, &stylemask, &channels)));
CHECK(0 == strcmp(egc, "六"));
free(egc);
REQUIRE((egc = notcurses_at_yx(nc_, 0, 1, &stylemask, &channels)));
CHECK(0 == strcmp(egc, ""));
free(egc);
REQUIRE((egc = notcurses_at_yx(nc_, 0, 2, &stylemask, &channels)));
CHECK(0 == strcmp(egc, "次"));
free(egc);
REQUIRE((egc = notcurses_at_yx(nc_, 0, 3, &stylemask, &channels)));
CHECK(0 == strcmp(egc, ""));
free(egc);
REQUIRE((egc = notcurses_at_yx(nc_, 0, 4, &stylemask, &channels)));
CHECK(0 == strcmp(egc, "次"));
free(egc);
REQUIRE((egc = notcurses_at_yx(nc_, 0, 5, &stylemask, &channels)));
CHECK(0 == strcmp(egc, ""));
free(egc);
REQUIRE((egc = notcurses_at_yx(nc_, 0, 6, &stylemask, &channels)));
CHECK(0 == strcmp(egc, "六"));
free(egc);
REQUIRE((egc = notcurses_at_yx(nc_, 0, 7, &stylemask, &channels)));
CHECK(0 == strcmp(egc, ""));
free(egc);
CHECK(0 == ncplane_move_yx(topp, 0, 1));
CHECK(0 == notcurses_render(nc_));
REQUIRE((egc = notcurses_at_yx(nc_, 0, 0, &stylemask, &channels)));
CHECK(0 == strcmp(egc, " "));
free(egc);
REQUIRE((egc = notcurses_at_yx(nc_, 0, 1, &stylemask, &channels)));
CHECK(0 == strcmp(egc, "次"));
free(egc);
REQUIRE((egc = notcurses_at_yx(nc_, 0, 2, &stylemask, &channels)));
CHECK(0 == strcmp(egc, ""));
free(egc);
REQUIRE((egc = notcurses_at_yx(nc_, 0, 3, &stylemask, &channels)));
CHECK(0 == strcmp(egc, "次"));
free(egc);
REQUIRE((egc = notcurses_at_yx(nc_, 0, 4, &stylemask, &channels)));
CHECK(0 == strcmp(egc, ""));
free(egc);
REQUIRE((egc = notcurses_at_yx(nc_, 0, 5, &stylemask, &channels)));
CHECK(0 == strcmp(egc, ""));
free(egc);
REQUIRE((egc = notcurses_at_yx(nc_, 0, 6, &stylemask, &channels)));
CHECK(0 == strcmp(egc, "六"));
free(egc);
REQUIRE((egc = notcurses_at_yx(nc_, 0, 7, &stylemask, &channels)));
CHECK(0 == strcmp(egc, ""));
free(egc);
CHECK(0 == ncplane_move_yx(topp, 0, 0));
CHECK(0 == notcurses_render(nc_));
REQUIRE((egc = notcurses_at_yx(nc_, 0, 0, &stylemask, &channels)));
CHECK(0 == strcmp(egc, "次"));
free(egc);
REQUIRE((egc = notcurses_at_yx(nc_, 0, 1, &stylemask, &channels)));
CHECK(0 == strcmp(egc, ""));
free(egc);
REQUIRE((egc = notcurses_at_yx(nc_, 0, 2, &stylemask, &channels)));
CHECK(0 == strcmp(egc, "次"));
free(egc);
REQUIRE((egc = notcurses_at_yx(nc_, 0, 3, &stylemask, &channels)));
CHECK(0 == strcmp(egc, ""));
free(egc);
REQUIRE((egc = notcurses_at_yx(nc_, 0, 4, &stylemask, &channels)));
CHECK(0 == strcmp(egc, "六"));
free(egc);
REQUIRE((egc = notcurses_at_yx(nc_, 0, 5, &stylemask, &channels)));
CHECK(0 == strcmp(egc, ""));
free(egc);
REQUIRE((egc = notcurses_at_yx(nc_, 0, 6, &stylemask, &channels)));
CHECK(0 == strcmp(egc, "六"));
free(egc);
REQUIRE((egc = notcurses_at_yx(nc_, 0, 7, &stylemask, &channels)));
CHECK(0 == strcmp(egc, ""));
free(egc);
ncplane_destroy(topp);
}
// drag a plane of wide glyphs across a plane of narrow glyphs
SUBCASE("WidePlaneAtopNarrow") {
CHECK(0 == ncplane_set_fg_rgb(n_, 0xff, 0, 0xff));
// start the 1x4 top plane at 0, 4
struct ncplane* topp = ncplane_new(nc_, 1, 4, 0, 4, nullptr);
REQUIRE(nullptr != topp);
CHECK(0 == ncplane_set_bg_rgb(topp, 0, 0xff, 0));
CHECK(6 == ncplane_putstr(topp, "次次"));
CHECK(8 == ncplane_putstr(n_, "abcdefgh"));
CHECK(0 == notcurses_render(nc_));
uint16_t stylemask;
uint64_t channels;
char* egc;
REQUIRE((egc = notcurses_at_yx(nc_, 0, 0, &stylemask, &channels)));
CHECK(0 == strcmp(egc, "a"));
free(egc);
REQUIRE((egc = notcurses_at_yx(nc_, 0, 1, &stylemask, &channels)));
CHECK(0 == strcmp(egc, "b"));
free(egc);
REQUIRE((egc = notcurses_at_yx(nc_, 0, 2, &stylemask, &channels)));
CHECK(0 == strcmp(egc, "c"));
free(egc);
REQUIRE((egc = notcurses_at_yx(nc_, 0, 3, &stylemask, &channels)));
CHECK(0 == strcmp(egc, "d"));
free(egc);
REQUIRE((egc = notcurses_at_yx(nc_, 0, 4, &stylemask, &channels)));
CHECK(0 == strcmp(egc, "次"));
free(egc);
REQUIRE((egc = notcurses_at_yx(nc_, 0, 5, &stylemask, &channels)));
CHECK(0 == strcmp(egc, ""));
free(egc);
REQUIRE((egc = notcurses_at_yx(nc_, 0, 6, &stylemask, &channels)));
CHECK(0 == strcmp(egc, "次"));
free(egc);
REQUIRE((egc = notcurses_at_yx(nc_, 0, 7, &stylemask, &channels)));
CHECK(0 == strcmp(egc, ""));
free(egc);
CHECK(0 == ncplane_move_yx(topp, 0, 3));
CHECK(0 == notcurses_render(nc_));
REQUIRE((egc = notcurses_at_yx(nc_, 0, 0, &stylemask, &channels)));
CHECK(0 == strcmp(egc, "a"));
free(egc);
REQUIRE((egc = notcurses_at_yx(nc_, 0, 1, &stylemask, &channels)));
CHECK(0 == strcmp(egc, "b"));
free(egc);
REQUIRE((egc = notcurses_at_yx(nc_, 0, 2, &stylemask, &channels)));
CHECK(0 == strcmp(egc, "c"));
free(egc);
REQUIRE((egc = notcurses_at_yx(nc_, 0, 3, &stylemask, &channels)));
CHECK(0 == strcmp(egc, "次"));
free(egc);
REQUIRE((egc = notcurses_at_yx(nc_, 0, 4, &stylemask, &channels)));
CHECK(0 == strcmp(egc, ""));
free(egc);
REQUIRE((egc = notcurses_at_yx(nc_, 0, 5, &stylemask, &channels)));
CHECK(0 == strcmp(egc, "次"));
free(egc);
REQUIRE((egc = notcurses_at_yx(nc_, 0, 6, &stylemask, &channels)));
CHECK(0 == strcmp(egc, ""));
free(egc);
REQUIRE((egc = notcurses_at_yx(nc_, 0, 7, &stylemask, &channels)));
CHECK(0 == strcmp(egc, "h"));
free(egc);
CHECK(0 == ncplane_move_yx(topp, 0, 2));
CHECK(0 == notcurses_render(nc_));
REQUIRE((egc = notcurses_at_yx(nc_, 0, 0, &stylemask, &channels)));
CHECK(0 == strcmp(egc, "a"));
free(egc);
REQUIRE((egc = notcurses_at_yx(nc_, 0, 1, &stylemask, &channels)));
CHECK(0 == strcmp(egc, "b"));
free(egc);
REQUIRE((egc = notcurses_at_yx(nc_, 0, 2, &stylemask, &channels)));
CHECK(0 == strcmp(egc, "次"));
free(egc);
REQUIRE((egc = notcurses_at_yx(nc_, 0, 3, &stylemask, &channels)));
CHECK(0 == strcmp(egc, ""));
free(egc);
REQUIRE((egc = notcurses_at_yx(nc_, 0, 4, &stylemask, &channels)));
CHECK(0 == strcmp(egc, "次"));
free(egc);
REQUIRE((egc = notcurses_at_yx(nc_, 0, 5, &stylemask, &channels)));
CHECK(0 == strcmp(egc, ""));
free(egc);
REQUIRE((egc = notcurses_at_yx(nc_, 0, 6, &stylemask, &channels)));
CHECK(0 == strcmp(egc, "g"));
free(egc);
REQUIRE((egc = notcurses_at_yx(nc_, 0, 7, &stylemask, &channels)));
CHECK(0 == strcmp(egc, "h"));
free(egc);
CHECK(0 == ncplane_move_yx(topp, 0, 1));
CHECK(0 == notcurses_render(nc_));
REQUIRE((egc = notcurses_at_yx(nc_, 0, 0, &stylemask, &channels)));
CHECK(0 == strcmp(egc, "a"));
free(egc);
REQUIRE((egc = notcurses_at_yx(nc_, 0, 1, &stylemask, &channels)));
CHECK(0 == strcmp(egc, "次"));
free(egc);
REQUIRE((egc = notcurses_at_yx(nc_, 0, 2, &stylemask, &channels)));
CHECK(0 == strcmp(egc, ""));
free(egc);
REQUIRE((egc = notcurses_at_yx(nc_, 0, 3, &stylemask, &channels)));
CHECK(0 == strcmp(egc, "次"));
free(egc);
REQUIRE((egc = notcurses_at_yx(nc_, 0, 4, &stylemask, &channels)));
CHECK(0 == strcmp(egc, ""));
free(egc);
REQUIRE((egc = notcurses_at_yx(nc_, 0, 5, &stylemask, &channels)));
CHECK(0 == strcmp(egc, "f"));
free(egc);
REQUIRE((egc = notcurses_at_yx(nc_, 0, 6, &stylemask, &channels)));
CHECK(0 == strcmp(egc, "g"));
free(egc);
REQUIRE((egc = notcurses_at_yx(nc_, 0, 7, &stylemask, &channels)));
CHECK(0 == strcmp(egc, "h"));
free(egc);
CHECK(0 == ncplane_move_yx(topp, 0, 0));
CHECK(0 == notcurses_render(nc_));
REQUIRE((egc = notcurses_at_yx(nc_, 0, 0, &stylemask, &channels)));
CHECK(0 == strcmp(egc, "次"));
free(egc);
REQUIRE((egc = notcurses_at_yx(nc_, 0, 1, &stylemask, &channels)));
CHECK(0 == strcmp(egc, ""));
free(egc);
REQUIRE((egc = notcurses_at_yx(nc_, 0, 2, &stylemask, &channels)));
CHECK(0 == strcmp(egc, "次"));
free(egc);
REQUIRE((egc = notcurses_at_yx(nc_, 0, 3, &stylemask, &channels)));
CHECK(0 == strcmp(egc, ""));
free(egc);
REQUIRE((egc = notcurses_at_yx(nc_, 0, 4, &stylemask, &channels)));
CHECK(0 == strcmp(egc, "e"));
free(egc);
REQUIRE((egc = notcurses_at_yx(nc_, 0, 5, &stylemask, &channels)));
CHECK(0 == strcmp(egc, "f"));
free(egc);
REQUIRE((egc = notcurses_at_yx(nc_, 0, 6, &stylemask, &channels)));
CHECK(0 == strcmp(egc, "g"));
free(egc);
REQUIRE((egc = notcurses_at_yx(nc_, 0, 7, &stylemask, &channels)));
CHECK(0 == strcmp(egc, "h"));
free(egc);
ncplane_destroy(topp);
}
// Verify that we can use long (4-byte) UTF-encoded characters together with
// styles without a problem (since the stylemask holds both styling bits and
// the NUL backstop for long inlined UTF8).
// U+1F90C PINCHED FINGERS → UTF8(f0 9f a4 8c)
SUBCASE("ItalicEmoji") {
cell c = CELL_TRIVIAL_INITIALIZER;
cell_load(n_, &c, "\U0001F90C");
CHECK(0x8ca49ff0lu == c.gcluster);
cell_styles_on(&c, NCSTYLE_ITALIC);
CHECK(4 == strlen(cell_extended_gcluster(n_, &c)));
CHECK(0 == strcmp("\U0001F90C", cell_extended_gcluster(n_, &c)));
CHECK(0 < ncplane_putc_yx(n_, 0, 0, &c));
CHECK(0 == notcurses_render(nc_));
uint16_t stylemask;
uint64_t channels;
auto egc = notcurses_at_yx(nc_, 0, 0, &stylemask, &channels);
REQUIRE(nullptr != egc);
CHECK(4 == strlen(egc));
CHECK(0 == strcmp("\U0001F90C", egc));
free(egc);
CHECK(NCSTYLE_ITALIC == stylemask);
}
SUBCASE("StyleMaxEmoji") {
cell c = CELL_TRIVIAL_INITIALIZER;
cell_load(n_, &c, "\U0001F90C");
CHECK(0x8ca49ff0lu == c.gcluster);
cell_styles_on(&c, NCSTYLE_MASK);
CHECK(4 == strlen(cell_extended_gcluster(n_, &c)));
CHECK(0 == strcmp("\U0001F90C", cell_extended_gcluster(n_, &c)));
CHECK(0 < ncplane_putc_yx(n_, 0, 0, &c));
CHECK(0 == notcurses_render(nc_));
uint16_t stylemask;
uint64_t channels;
auto egc = notcurses_at_yx(nc_, 0, 0, &stylemask, &channels);
REQUIRE(nullptr != egc);
CHECK(4 == strlen(egc));
CHECK(0 == strcmp("\U0001F90C", egc));
free(egc);
CHECK(NCSTYLE_MASK == stylemask);
}
// a higher glyph ought not be annihilated by a lower wide glyph
SUBCASE("HigherGlyphAbides") {
auto high = ncplane_new(nc_, 1, 1, 0, 0, nullptr);
REQUIRE(nullptr != high);
CHECK(0 < ncplane_putsimple_yx(high, 0, 0, 'a'));
CHECK(0 < ncplane_putegc_yx(n_, 0, 0, "全", nullptr));
CHECK(0 == notcurses_render(nc_));
auto egc = notcurses_at_yx(nc_, 0, 0, nullptr, nullptr);
REQUIRE(nullptr != egc);
CHECK(0 == strcmp(egc, "a"));
free(egc);
egc = notcurses_at_yx(nc_, 0, 1, nullptr, nullptr);
CHECK(0 == strcmp(egc, ""));
free(egc);
CHECK(0 == ncplane_move_yx(high, 0, 1));
CHECK(0 == notcurses_render(nc_));
egc = notcurses_at_yx(nc_, 0, 0, nullptr, nullptr);
REQUIRE(nullptr != egc);
CHECK(0 == strcmp(egc, " "));
free(egc);
egc = notcurses_at_yx(nc_, 0, 1, nullptr, nullptr);
CHECK(0 == strcmp(egc, "a"));
free(egc);
ncplane_destroy(high);
}
CHECK(0 == notcurses_stop(nc_));
}
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