ref: 7e11361bcf62fdaf6b17aeb7032c01990a567d0f
dir: /fplot-col/
diff -r 82ca4d784349 sys/src/cmd/fplot.c --- a/sys/src/cmd/fplot.c Sun Jul 01 23:35:23 2018 -0400 +++ b/sys/src/cmd/fplot.c Thu Jul 05 04:44:35 2018 +0200 @@ -366,7 +366,9 @@ if(x >= picx || y >= picy || x < 0 || y < 0) return; p = imagedata + (picx * y + x) * 3; - p[0] = p[1] = p[2] = 0; + p[0] = 0; + p[1] = 0x44; + p[2] = 0x88; } else draw(screen, Rect(x, y, x + 1, y + 1), color, nil, ZP); } @@ -450,7 +452,7 @@ lr = rectsubpt(lr, Pt(0, lr.min.y - ny)); } if(rectinrect(lr, screen->r) && (lr.min.x > x || lr.max.x <= x)){ - string(screen, lr.min, display->black, ZP, display->defaultfont, buf); + string(screen, lr.min, color, ZP, display->defaultfont, buf); return 1; } return 0; @@ -472,7 +474,7 @@ lr = rectsubpt(lr, Pt(lr.min.x - nx, 0)); } if(rectinrect(lr, screen->r) && (lr.min.y > y || lr.max.y <= y)){ - string(screen, lr.min, display->black, ZP, display->defaultfont, buf); + string(screen, lr.min, color, ZP, display->defaultfont, buf); return 1; } return 0; @@ -539,25 +541,25 @@ x = deconvx(&screen->r, 0); else x = screen->r.min.x+5; - line(screen, Pt(x, screen->r.min.y), Pt(x, screen->r.max.y), Endarrow, 0, 0, display->black, ZP); + line(screen, Pt(x, screen->r.min.y), Pt(x, screen->r.max.y), Endarrow, 0, 0, color, ZP); if(ymin < 0 && ymax > 0) y = deconvy(&screen->r, 0); else y = screen->r.max.y-5; - line(screen, Pt(screen->r.min.x, y), Pt(screen->r.max.x, y), 0, Endarrow, 0, display->black, ZP); + line(screen, Pt(screen->r.min.x, y), Pt(screen->r.max.x, y), 0, Endarrow, 0, color, ZP); nx = ticks(xmin, xmax, &dx, &mx); tickfmt(dx, mx, nx, fmt); for(i = 0; i <= nx; i++){ p = deconvx(&screen->r, dx*i+mx); if(xticklabel(fmt, dx*i+mx, p, x, y)) - line(screen, Pt(p, y), Pt(p, y-5), 0, 0, 0, display->black, ZP); + line(screen, Pt(p, y), Pt(p, y-5), 0, 0, 0, color, ZP); } ny = ticks(ymin, ymax, &dy, &my); tickfmt(dy, my, ny, fmt); for(i = 0; i <= ny; i++){ p = deconvy(&screen->r, dy*i+my); if(yticklabel(fmt, dy*i+my, p, x, y)) - line(screen, Pt(x, p), Pt(x+5, p), 0, 0, 0, display->black, ZP); + line(screen, Pt(x, p), Pt(x+5, p), 0, 0, 0, color, ZP); } } @@ -566,7 +568,6 @@ { int i; - color = display->black; for(i = 0; i < nfns; i++) drawgraph(&fns[i], &screen->r); if(!aflag) @@ -603,7 +604,7 @@ xmax = xmax_; ymin = ymin_; ymax = ymax_; - draw(screen, screen->r, display->white, nil, ZP); + draw(screen, screen->r, display->black, nil, ZP); drawgraphs(); } @@ -617,7 +618,7 @@ ymax = zoomst[nzoomst - 1].ymax; zoomst = realloc(zoomst, sizeof(FRectangle) * --nzoomst); if(zoomst == nil && nzoomst != 0) sysfatal("realloc: %r"); - draw(screen, screen->r, display->white, nil, ZP); + draw(screen, screen->r, display->black, nil, ZP); drawgraphs(); } @@ -687,7 +688,6 @@ parsefns(argc, argv); if(cflag) { imagedata = emalloc(picx * picy * 3); - memset(imagedata, 0xFF, picx * picy * 3); print("%11s %11d %11d %11d %11d ", "r8g8b8", 0, 0, picx, picy); r.min.x = r.min.y = 0; r.max.x = picx; @@ -699,7 +699,11 @@ } else { if(initdraw(nil, nil, "fplot") < 0) sysfatal("initdraw: %r"); + color = allocimage(display, Rect(0,0,1,1), RGB24, 1, 0x884400ff); + if(color == nil) + sysfatal("allocimage: %r"); einit(Emouse | Ekeyboard); + draw(screen, screen->r, display->black, nil, ZP); drawgraphs(); for(;;) { switch(event(&e)) { @@ -720,7 +724,7 @@ zoomst[nzoomst++] = (FRectangle){xmin, xmax, ymin, ymax}; ymin = gymin-0.05*(gymax-gymin); ymax = gymax+0.05*(gymax-gymin); - draw(screen, screen->r, display->white, nil, ZP); + draw(screen, screen->r, display->black, nil, ZP); drawgraphs(); } break;