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Fix behaviour when TrueColor / 24 bit depth is not available (#114)

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* Fix regression introduced in c7ca547 which made nsxiv not start in
  non-TrueColor X server.
* Introduce a new fix for embedding into tabbed-alpha. 
* Fixes a visual glitch from original sxiv when drawing transparent images in 8
  bit depth. In 8 bit PseudoColor, `.pixel` is just an index into the 256
  defined colors and thus trying to extract rgb bits from it would result in
  visual glitch. The values `.color.red` on the other hand and so on are always
  integers between 0 and 0xFFFF representing the color as expected.
* Use XColor for win_bg/fg and mrk_fg

Co-authored-by: NRK <nrk@disroot.org>
This commit is contained in:
miseran
2021-10-12 01:46:35 +02:00
committed by GitHub
parent 1449bfc5e9
commit cd710f583f
4 changed files with 24 additions and 33 deletions
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39
window.c
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@ -80,12 +80,11 @@ void xft_alloc_color(const win_env_t *e, const char *name, XftColor *col)
}
#endif /* HAVE_LIBFONTS */
void win_alloc_color(const win_env_t *e, const char *name, unsigned long *pixel)
void win_alloc_color(const win_env_t *e, const char *name, XColor *col)
{
XColor screen, exact;
if (!XAllocNamedColor(e->dpy, e->cmap, name, &screen, &exact))
XColor screen;
if (!XAllocNamedColor(e->dpy, e->cmap, name, &screen, col))
error(EXIT_FAILURE, 0, "Error allocating color '%s'", name);
*pixel = exact.pixel;
}
const char* win_res(XrmDatabase db, const char *name, const char *def)
@ -112,9 +111,6 @@ void win_init(win_t *win)
#endif
char *res_man;
XrmDatabase db;
XVisualInfo vis;
XWindowAttributes attr;
Window parent;
memset(win, 0, sizeof(win_t));
@ -125,19 +121,9 @@ void win_init(win_t *win)
e->scr = DefaultScreen(e->dpy);
e->scrw = DisplayWidth(e->dpy, e->scr);
e->scrh = DisplayHeight(e->dpy, e->scr);
parent = options->embed != 0 ? options->embed : RootWindow(e->dpy, e->scr);
if (options->embed == 0) {
e->depth = DefaultDepth(e->dpy, e->scr);
} else {
XGetWindowAttributes(e->dpy, parent, &attr);
e->depth = attr.depth;
}
XMatchVisualInfo(e->dpy, e->scr, e->depth, TrueColor, &vis);
e->vis = vis.visual;
e->cmap = XCreateColormap(e->dpy, parent, e->vis, None);
e->depth = DefaultDepth(e->dpy, e->scr);
e->vis = DefaultVisual(e->dpy, e->scr);
e->cmap = DefaultColormap(e->dpy, e->scr);
if (setlocale(LC_CTYPE, "") == NULL || XSupportsLocale() == 0)
error(0, 0, "No locale support");
@ -197,6 +183,7 @@ void win_open(win_t *win)
XWMHints hints;
pid_t pid;
char hostname[256];
XSetWindowAttributes attrs;
e = &win->env;
parent = options->embed != 0 ? options->embed : RootWindow(e->dpy, e->scr);
@ -238,8 +225,12 @@ void win_open(win_t *win)
win->y = 0;
}
attrs.colormap = e->cmap;
attrs.border_pixel = 0;
win->xwin = XCreateWindow(e->dpy, parent, win->x, win->y, win->w, win->h, 0,
e->depth, InputOutput, e->vis, 0, NULL);
e->depth, InputOutput, e->vis,
CWColormap | CWBorderPixel, &attrs);
if (win->xwin == None)
error(EXIT_FAILURE, 0, "Error creating X window");
@ -317,7 +308,7 @@ void win_open(win_t *win)
win->buf.h = e->scrh;
win->buf.pm = XCreatePixmap(e->dpy, win->xwin, win->buf.w, win->buf.h, e->depth);
XSetForeground(e->dpy, gc, win->win_bg);
XSetForeground(e->dpy, gc, win->win_bg.pixel);
XFillRectangle(e->dpy, win->buf.pm, gc, 0, 0, win->buf.w, win->buf.h);
XSetWindowBackgroundPixmap(e->dpy, win->xwin, win->buf.pm);
XMapWindow(e->dpy, win->xwin);
@ -398,7 +389,7 @@ void win_clear(win_t *win)
win->buf.pm = XCreatePixmap(e->dpy, win->xwin,
win->buf.w, win->buf.h, e->depth);
}
XSetForeground(e->dpy, gc, win->win_bg);
XSetForeground(e->dpy, gc, win->win_bg.pixel);
XFillRectangle(e->dpy, win->buf.pm, gc, 0, 0, win->buf.w, win->buf.h);
}
@ -455,7 +446,7 @@ void win_draw_bar(win_t *win)
XSetForeground(e->dpy, gc, win->bar_bg.pixel);
XFillRectangle(e->dpy, win->buf.pm, gc, 0, win->h, win->w, win->bar.h);
XSetForeground(e->dpy, gc, win->win_bg);
XSetForeground(e->dpy, gc, win->win_bg.pixel);
XSetBackground(e->dpy, gc, win->bar_bg.pixel);
if ((len = strlen(r->buf)) > 0) {