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Applying transparent bar patch

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This commit is contained in:
Alex Selimov 2023-10-09 21:12:26 -04:00
commit 24ddc71b94
6 changed files with 97 additions and 22 deletions
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60
dwm.c
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@ -57,6 +57,8 @@
#define TAGMASK ((1 << LENGTH(tags)) - 1)
#define TEXTW(X) (drw_fontset_getwidth(drw, (X)) + lrpad)
#define OPAQUE 0xffU
/* enums */
enum { CurNormal, CurResize, CurMove, CurLast }; /* cursor */
enum { SchemeNorm, SchemeSel, SchemeStatus, SchemeTagsSel, SchemeTagsNorm, SchemeInfoSel, SchemeInfoNorm, SchemeWarn, SchemeUrgent, SchemeWorking}; /* color schemes */
@ -242,6 +244,7 @@ static Monitor *wintomon(Window w);
static int xerror(Display *dpy, XErrorEvent *ee);
static int xerrordummy(Display *dpy, XErrorEvent *ee);
static int xerrorstart(Display *dpy, XErrorEvent *ee);
static void xinitvisual();
static void zoom(const Arg *arg);
/* variables */
@ -279,6 +282,11 @@ static Drw *drw;
static Monitor *mons, *selmon;
static Window root, wmcheckwin;
static int useargb = 0;
static Visual *visual;
static int depth;
static Colormap cmap;
/* configuration, allows nested code to access above variables */
#include "config.h"
@ -1706,7 +1714,8 @@ setup(void)
sw = DisplayWidth(dpy, screen);
sh = DisplayHeight(dpy, screen);
root = RootWindow(dpy, screen);
drw = drw_create(dpy, screen, root, sw, sh);
xinitvisual();
drw = drw_create(dpy, screen, root, sw, sh, visual, depth, cmap);
if (!drw_fontset_create(drw, fonts, LENGTH(fonts)))
die("no fonts could be loaded.");
lrpad = drw->fonts->h;
@ -1734,7 +1743,7 @@ setup(void)
/* init appearance */
scheme = ecalloc(LENGTH(colors), sizeof(Clr *));
for (i = 0; i < LENGTH(colors); i++)
scheme[i] = drw_scm_create(drw, colors[i], 3);
scheme[i] = drw_scm_create(drw, colors[i], alphas[i], 3);
/* init bars */
updatebars();
updatestatus();
@ -1992,16 +2001,18 @@ updatebars(void)
Monitor *m;
XSetWindowAttributes wa = {
.override_redirect = True,
.background_pixmap = ParentRelative,
.background_pixel = 0,
.border_pixel = 0,
.colormap = cmap,
.event_mask = ButtonPressMask|ExposureMask
};
XClassHint ch = {"dwm", "dwm"};
for (m = mons; m; m = m->next) {
if (m->barwin)
continue;
m->barwin = XCreateWindow(dpy, root, m->wx, m->by, m->ww, bh, 0, DefaultDepth(dpy, screen),
CopyFromParent, DefaultVisual(dpy, screen),
CWOverrideRedirect|CWBackPixmap|CWEventMask, &wa);
m->barwin = XCreateWindow(dpy, root, m->wx, m->by, m->ww, bh, 0, depth,
InputOutput, visual,
CWOverrideRedirect|CWBackPixel|CWBorderPixel|CWColormap|CWEventMask, &wa);
XDefineCursor(dpy, m->barwin, cursor[CurNormal]->cursor);
XMapRaised(dpy, m->barwin);
XSetClassHint(dpy, m->barwin, &ch);
@ -2346,6 +2357,43 @@ xerrorstart(Display *dpy, XErrorEvent *ee)
return -1;
}
void
xinitvisual()
{
XVisualInfo *infos;
XRenderPictFormat *fmt;
int nitems;
int i;
XVisualInfo tpl = {
.screen = screen,
.depth = 32,
.class = TrueColor
};
long masks = VisualScreenMask | VisualDepthMask | VisualClassMask;
infos = XGetVisualInfo(dpy, masks, &tpl, &nitems);
visual = NULL;
for(i = 0; i < nitems; i ++) {
fmt = XRenderFindVisualFormat(dpy, infos[i].visual);
if (fmt->type == PictTypeDirect && fmt->direct.alphaMask) {
visual = infos[i].visual;
depth = infos[i].depth;
cmap = XCreateColormap(dpy, root, visual, AllocNone);
useargb = 1;
break;
}
}
XFree(infos);
if (! visual) {
visual = DefaultVisual(dpy, screen);
depth = DefaultDepth(dpy, screen);
cmap = DefaultColormap(dpy, screen);
}
}
void
zoom(const Arg *arg)
{