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https://github.com/dankamongmen/notcurses
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plots: get width/height for pixel plots #1382
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nick black
nick black
parent
f3fafb42ee
commit
e36497866f
@ -227,7 +227,7 @@ int input_demo(ncpp::NotCurses* nc) {
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popts.minchannels = popts.maxchannels = 0;
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ncchannels_set_fg_rgb8(&popts.minchannels, 0x40, 0x50, 0xb0);
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ncchannels_set_fg_rgb8(&popts.maxchannels, 0x40, 0xff, 0xd0);
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popts.gridtype = static_cast<ncblitter_e>(NCBLIT_8x1);
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popts.gridtype = static_cast<ncblitter_e>(NCBLIT_PIXEL);
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plot = ncuplot_create(pplane, &popts, 0, 0);
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if(!plot){
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return EXIT_FAILURE;
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122
src/lib/plot.c
122
src/lib/plot.c
@ -45,12 +45,14 @@ typedef struct nc##X##plot { \
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\
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int redraw_plot_##T(nc##X##plot* ncp){ \
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ncplane_erase(ncp->plot.ncp); \
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const int scale = ncp->plot.bset->width; \
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const int scale = ncp->plot.bset->geom == NCBLIT_PIXEL ? \
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ncplane_notcurses_const(ncp->plot.ncp)->tcache.cellpixx : ncp->plot.bset->width; \
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int dimy, dimx; \
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ncplane_dim_yx(ncp->plot.ncp, &dimy, &dimx); \
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const int scaleddim = dimx * scale; \
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/* each transition is worth this much change in value */ \
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const size_t states = ncp->plot.bset->height + 1; \
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const size_t states = (ncp->plot.bset->geom == NCBLIT_PIXEL ? \
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ncplane_notcurses_const(ncp->plot.ncp)->tcache.cellpixy : ncp->plot.bset->height) + 1; \
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/* FIXME can we not rid ourselves of this meddlesome double? either way, the \
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interval is one row's range (for linear plots), or the base (base^slots== \
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maxy-miny) of the range (for exponential plots). */ \
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@ -138,68 +140,70 @@ int redraw_plot_##T(nc##X##plot* ncp){ \
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calc_gradient_channels(&channels, ncp->plot.minchannels, ncp->plot.minchannels, \
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ncp->plot.maxchannels, ncp->plot.maxchannels, y, x, dimy, dimx); \
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ncplane_set_channels(ncp->plot.ncp, channels); \
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size_t egcidx = 0, sumidx = 0; \
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/* if we've got at least one interval's worth on the number of positions \
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times the number of intervals per position plus the starting offset, \
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we're going to print *something* */ \
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for(int i = 0 ; i < scale ; ++i){ \
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sumidx *= states; \
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if(intervalbase < gvals[i]){ \
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if(ncp->plot.exponentiali){ \
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/* we want the log-base-interval of gvals[i] */ \
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double scaled = log(gvals[i] - ncp->miny) / log(interval); \
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double sival = intervalbase ? log(intervalbase) / log(interval) : 0; \
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egcidx = scaled - sival; \
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if(egc){ \
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size_t egcidx = 0, sumidx = 0; \
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/* if we've got at least one interval's worth on the number of positions \
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times the number of intervals per position plus the starting offset, \
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we're going to print *something* */ \
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for(int i = 0 ; i < scale ; ++i){ \
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sumidx *= states; \
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if(intervalbase < gvals[i]){ \
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if(ncp->plot.exponentiali){ \
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/* we want the log-base-interval of gvals[i] */ \
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double scaled = log(gvals[i] - ncp->miny) / log(interval); \
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double sival = intervalbase ? log(intervalbase) / log(interval) : 0; \
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egcidx = scaled - sival; \
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}else{ \
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egcidx = (gvals[i] - intervalbase) / interval; \
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} \
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if(egcidx >= states){ \
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egcidx = states - 1; \
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done = false; \
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} \
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sumidx += egcidx; \
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}else{ \
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egcidx = (gvals[i] - intervalbase) / interval; \
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egcidx = 0; \
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} \
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if(egcidx >= states){ \
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egcidx = states - 1; \
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done = false; \
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} \
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sumidx += egcidx; \
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}else{ \
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egcidx = 0; \
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/* printf(stderr, "y: %d i(scale): %d gvals[%d]: %ju egcidx: %zu sumidx: %zu interval: %f intervalbase: %ju\n", y, i, i, gvals[i], egcidx, sumidx, interval, intervalbase); */ \
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} \
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/* printf(stderr, "y: %d i(scale): %d gvals[%d]: %ju egcidx: %zu sumidx: %zu interval: %f intervalbase: %ju\n", y, i, i, gvals[i], egcidx, sumidx, interval, intervalbase); */ \
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} \
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/* if we're not UTF8, we can only arrive here via NCBLIT_1x1 (otherwise \
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we would have errored out during construction). even then, however, \
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we need handle ASCII differently, since it can't print full block. \
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in ASCII mode, sumidx != 0 means swap colors and use space. in all \
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modes, sumidx == 0 means don't do shit, since we erased earlier. */ \
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/* if(sumidx)fprintf(stderr, "dimy: %d y: %d x: %d sumidx: %zu egc[%zu]: %lc\n", dimy, y, x, sumidx, sumidx, egc[sumidx]); */ \
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if(sumidx){ \
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if(notcurses_canutf8(ncplane_notcurses(ncp->plot.ncp))){ \
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char utf8[MB_CUR_MAX + 1]; \
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int bytes = wctomb(utf8, egc[sumidx]); \
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if(bytes < 0){ \
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return -1; \
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/* if we're not UTF8, we can only arrive here via NCBLIT_1x1 (otherwise \
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we would have errored out during construction). even then, however, \
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we need handle ASCII differently, since it can't print full block. \
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in ASCII mode, sumidx != 0 means swap colors and use space. in all \
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modes, sumidx == 0 means don't do shit, since we erased earlier. */ \
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/* if(sumidx)fprintf(stderr, "dimy: %d y: %d x: %d sumidx: %zu egc[%zu]: %lc\n", dimy, y, x, sumidx, sumidx, egc[sumidx]); */ \
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if(sumidx){ \
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if(notcurses_canutf8(ncplane_notcurses(ncp->plot.ncp))){ \
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char utf8[MB_CUR_MAX + 1]; \
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int bytes = wctomb(utf8, egc[sumidx]); \
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if(bytes < 0){ \
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return -1; \
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} \
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utf8[bytes] = '\0'; \
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nccell* c = ncplane_cell_ref_yx(ncp->plot.ncp, dimy - y - 1, x); \
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cell_set_bchannel(c, ncchannels_bchannel(channels)); \
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cell_set_fchannel(c, ncchannels_fchannel(channels)); \
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nccell_set_styles(c, NCSTYLE_NONE); \
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if(pool_blit_direct(&ncp->plot.ncp->pool, c, utf8, bytes, 1) <= 0){ \
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return -1; \
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} \
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}else{ \
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const uint64_t swapbg = ncchannels_bchannel(channels); \
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const uint64_t swapfg = ncchannels_fchannel(channels); \
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ncchannels_set_bchannel(&channels, swapfg); \
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ncchannels_set_fchannel(&channels, swapbg); \
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ncplane_set_channels(ncp->plot.ncp, channels); \
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if(ncplane_putchar_yx(ncp->plot.ncp, dimy - y - 1, x, ' ') <= 0){ \
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return -1; \
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} \
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ncchannels_set_bchannel(&channels, swapbg); \
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ncchannels_set_fchannel(&channels, swapfg); \
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ncplane_set_channels(ncp->plot.ncp, channels); \
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} \
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utf8[bytes] = '\0'; \
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nccell* c = ncplane_cell_ref_yx(ncp->plot.ncp, dimy - y - 1, x); \
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cell_set_bchannel(c, ncchannels_bchannel(channels)); \
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cell_set_fchannel(c, ncchannels_fchannel(channels)); \
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nccell_set_styles(c, NCSTYLE_NONE); \
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if(pool_blit_direct(&ncp->plot.ncp->pool, c, utf8, bytes, 1) <= 0){ \
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return -1; \
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} \
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}else{ \
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const uint64_t swapbg = ncchannels_bchannel(channels); \
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const uint64_t swapfg = ncchannels_fchannel(channels); \
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ncchannels_set_bchannel(&channels, swapfg); \
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ncchannels_set_fchannel(&channels, swapbg); \
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ncplane_set_channels(ncp->plot.ncp, channels); \
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if(ncplane_putchar_yx(ncp->plot.ncp, dimy - y - 1, x, ' ') <= 0){ \
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return -1; \
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} \
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ncchannels_set_bchannel(&channels, swapbg); \
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ncchannels_set_fchannel(&channels, swapfg); \
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ncplane_set_channels(ncp->plot.ncp, channels); \
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} \
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} \
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if(done){ \
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break; \
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if(done){ \
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break; \
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} \
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} \
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if(ncp->plot.exponentiali){ \
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intervalbase = ncp->miny + pow(interval, (y + 1) * states - 1); \
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