dwm alpha patch ported to work with latest 61bb8b2. Tested briefly working.
>From 51f9c34480b984e261a738e5295f518b42c2f29c Mon Sep 17 00:00:00 2001 From: Petrus Karell <mailto:[email protected]> Date: Mon, 19 Oct 2020 19:15:24 +0300 Subject: [PATCH] Allow dwm to have translucent bars, while keeping all the text on it opaque, just like the alpha-patch for st. Updated for 61bb8b2 --- config.def.h | 7 ++++++ config.mk | 2 +- drw.c | 26 ++++++++++++----------- drw.h | 9 +++++--- dwm.c | 60 ++++++++++++++++++++++++++++++++++++++++++++++------ 5 files changed, 82 insertions(+), 22 deletions(-) diff --git a/config.def.h b/config.def.h index 1c0b587..4f68fe8 100644 --- a/config.def.h +++ b/config.def.h @@ -12,11 +12,18 @@ static const char col_gray2[] = "#444444"; static const char col_gray3[] = "#bbbbbb"; static const char col_gray4[] = "#eeeeee"; static const char col_cyan[] = "#005577"; +static const unsigned int baralpha = 0xd0; +static const unsigned int borderalpha = OPAQUE; static const char *colors[][3] = { /* fg bg border */ [SchemeNorm] = { col_gray3, col_gray1, col_gray2 }, [SchemeSel] = { col_gray4, col_cyan, col_cyan }, }; +static const unsigned int alphas[][3] = { + /* fg bg border */ + [SchemeNorm] = { OPAQUE, baralpha, borderalpha }, + [SchemeSel] = { OPAQUE, baralpha, borderalpha }, +}; /* tagging */ static const char *tags[] = { "1", "2", "3", "4", "5", "6", "7", "8", "9" }; diff --git a/config.mk b/config.mk index 7084c33..21b5404 100644 --- a/config.mk +++ b/config.mk @@ -22,7 +22,7 @@ FREETYPEINC = /usr/include/freetype2 # includes and libs INCS = -I${X11INC} -I${FREETYPEINC} -LIBS = -L${X11LIB} -lX11 ${XINERAMALIBS} ${FREETYPELIBS} +LIBS = -L${X11LIB} -lX11 ${XINERAMALIBS} ${FREETYPELIBS} -lXrender # flags CPPFLAGS = -D_DEFAULT_SOURCE -D_BSD_SOURCE -D_POSIX_C_SOURCE=200809L -DVERSION=\"${VERSION}\" ${XINERAMAFLAGS} diff --git a/drw.c b/drw.c index 4cdbcbe..fe3aadd 100644 --- a/drw.c +++ b/drw.c @@ -61,7 +61,7 @@ utf8decode(const char *c, long *u, size_t clen) } Drw * -drw_create(Display *dpy, int screen, Window root, unsigned int w, unsigned int h) +drw_create(Display *dpy, int screen, Window root, unsigned int w, unsigned int h, Visual *visual, unsigned int depth, Colormap cmap) { Drw *drw = ecalloc(1, sizeof(Drw)); @@ -70,8 +70,11 @@ drw_create(Display *dpy, int screen, Window root, unsigned int w, unsigned int h drw->root = root; drw->w = w; drw->h = h; - drw->drawable = XCreatePixmap(dpy, root, w, h, DefaultDepth(dpy, screen)); - drw->gc = XCreateGC(dpy, root, 0, NULL); + drw->visual = visual; + drw->depth = depth; + drw->cmap = cmap; + drw->drawable = XCreatePixmap(dpy, root, w, h, depth); + drw->gc = XCreateGC(dpy, drw->drawable, 0, NULL); XSetLineAttributes(dpy, drw->gc, 1, LineSolid, CapButt, JoinMiter); return drw; @@ -87,7 +90,7 @@ drw_resize(Drw *drw, unsigned int w, unsigned int h) drw->h = h; if (drw->drawable) XFreePixmap(drw->dpy, drw->drawable); - drw->drawable = XCreatePixmap(drw->dpy, drw->root, w, h, DefaultDepth(drw->dpy, drw->screen)); + drw->drawable = XCreatePixmap(drw->dpy, drw->root, w, h, drw->depth); } void @@ -194,21 +197,22 @@ drw_fontset_free(Fnt *font) } void -drw_clr_create(Drw *drw, Clr *dest, const char *clrname) +drw_clr_create(Drw *drw, Clr *dest, const char *clrname, unsigned int alpha) { if (!drw || !dest || !clrname) return; - if (!XftColorAllocName(drw->dpy, DefaultVisual(drw->dpy, drw->screen), - DefaultColormap(drw->dpy, drw->screen), + if (!XftColorAllocName(drw->dpy, drw->visual, drw->cmap, clrname, dest)) die("error, cannot allocate color '%s'", clrname); + + dest->pixel = (dest->pixel & 0x00ffffffU) | (alpha << 24); } /* Wrapper to create color schemes. The caller has to call free(3) on the * returned color scheme when done using it. */ Clr * -drw_scm_create(Drw *drw, const char *clrnames[], size_t clrcount) +drw_scm_create(Drw *drw, const char *clrnames[], const unsigned int alphas[], size_t clrcount) { size_t i; Clr *ret; @@ -218,7 +222,7 @@ drw_scm_create(Drw *drw, const char *clrnames[], size_t clrcount) return NULL; for (i = 0; i < clrcount; i++) - drw_clr_create(drw, &ret[i], clrnames[i]); + drw_clr_create(drw, &ret[i], clrnames[i], alphas[i]); return ret; } @@ -274,9 +278,7 @@ drw_text(Drw *drw, int x, int y, unsigned int w, unsigned int h, unsigned int lp } else { XSetForeground(drw->dpy, drw->gc, drw->scheme[invert ? ColFg : ColBg].pixel); XFillRectangle(drw->dpy, drw->drawable, drw->gc, x, y, w, h); - d = XftDrawCreate(drw->dpy, drw->drawable, - DefaultVisual(drw->dpy, drw->screen), - DefaultColormap(drw->dpy, drw->screen)); + d = XftDrawCreate(drw->dpy, drw->drawable, drw->visual, drw->cmap); x += lpad; w -= lpad; } diff --git a/drw.h b/drw.h index 4bcd5ad..a56f523 100644 --- a/drw.h +++ b/drw.h @@ -20,6 +20,9 @@ typedef struct { Display *dpy; int screen; Window root; + Visual *visual; + unsigned int depth; + Colormap cmap; Drawable drawable; GC gc; Clr *scheme; @@ -27,7 +30,7 @@ typedef struct { } Drw; /* Drawable abstraction */ -Drw *drw_create(Display *dpy, int screen, Window win, unsigned int w, unsigned int h); +Drw *drw_create(Display *dpy, int screen, Window win, unsigned int w, unsigned int h, Visual *visual, unsigned int depth, Colormap cmap); void drw_resize(Drw *drw, unsigned int w, unsigned int h); void drw_free(Drw *drw); @@ -38,8 +41,8 @@ unsigned int drw_fontset_getwidth(Drw *drw, const char *text); void drw_font_getexts(Fnt *font, const char *text, unsigned int len, unsigned int *w, unsigned int *h); /* Colorscheme abstraction */ -void drw_clr_create(Drw *drw, Clr *dest, const char *clrname); -Clr *drw_scm_create(Drw *drw, const char *clrnames[], size_t clrcount); +void drw_clr_create(Drw *drw, Clr *dest, const char *clrname, unsigned int alpha); +Clr *drw_scm_create(Drw *drw, const char *clrnames[], const unsigned int alphas[], size_t clrcount); /* Cursor abstraction */ Cur *drw_cur_create(Drw *drw, int shape); diff --git a/dwm.c b/dwm.c index 664c527..d8005c7 100644 --- a/dwm.c +++ b/dwm.c @@ -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 }; /* color schemes */ @@ -233,6 +235,7 @@ 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 */ @@ -269,6 +272,11 @@ 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" @@ -1542,7 +1550,8 @@ 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; @@ -1570,7 +1579,7 @@ 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(); @@ -1807,16 +1816,18 @@ 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); @@ -2113,6 +2124,43 @@ 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) { -- 2.28.0
dwm-alpha-20201019-61bb8b2.diff
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