Hello, My obsession for transparency never knows when to stop, so I couldn't resist writing this patch.
This patch allows dwm to have translucent bars, while keeping all the text on it opaque, just like my ARGB patch for st[1]. The patch also allows changing the opacity of borders, but it only works for ARGB-enabled applications(i.e. ARGB-patched st). This is because each border is drawn using the visual of the window it is wrapping. Thus, windows with 24-bit visuals will still have opaque borders even after this patch is applied. I'll upload this to http://dwm.suckless.org , hoping someone find it useful Sincerely, Eon [1]: http://st.suckless.org/patches/argbbg --- config.def.h | 2 ++ config.mk | 2 +- drw.c | 22 +++++++++---------- drw.h | 7 ++++-- dwm.c | 70 ++++++++++++++++++++++++++++++++++++++++++++++++++---------- 5 files changed, 78 insertions(+), 25 deletions(-) diff --git a/config.def.h b/config.def.h index 7054c06..4448d46 100644 --- a/config.def.h +++ b/config.def.h @@ -11,6 +11,8 @@ static const char normfgcolor[] = "#bbbbbb"; static const char selbordercolor[] = "#005577"; static const char selbgcolor[] = "#005577"; static const char selfgcolor[] = "#eeeeee"; +static unsigned int baralpha = 0xd0; +static unsigned int borderalpha = OPAQUE; static const unsigned int borderpx = 1; /* border pixel of windows */ static const unsigned int snap = 32; /* snap pixel */ static const int showbar = 1; /* 0 means no bar */ diff --git a/config.mk b/config.mk index 80dc936..2c62e89 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} ${FREETYPELIBS} -lXrender # flags CPPFLAGS = -D_DEFAULT_SOURCE -D_BSD_SOURCE -D_POSIX_C_SOURCE=2 -DVERSION=\"${VERSION}\" ${XINERAMAFLAGS} diff --git a/drw.c b/drw.c index f49200b..12e3ebc 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; @@ -71,8 +71,11 @@ 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); drw->fontcount = 0; XSetLineAttributes(dpy, drw->gc, 1, LineSolid, CapButt, JoinMiter); @@ -86,7 +89,7 @@ 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 @@ -180,16 +183,15 @@ drw_font_free(Fnt *font) } Clr * -drw_clr_create(Drw *drw, const char *clrname) +drw_clr_create(Drw *drw, const char *clrname, unsigned int alpha) { Clr *clr; clr = ecalloc(1, sizeof(Clr)); - if (!XftColorAllocName(drw->dpy, DefaultVisual(drw->dpy, drw->screen), - DefaultColormap(drw->dpy, drw->screen), + if (!XftColorAllocName(drw->dpy, drw->visual, drw->cmap, clrname, &clr->rgb)) die("error, cannot allocate color '%s'\n", clrname); - clr->pix = clr->rgb.pixel; + clr->pix = (clr->rgb.pixel & 0x00ffffffU) | (alpha << 24); return clr; } @@ -245,9 +247,7 @@ drw_text(Drw *drw, int x, int y, unsigned int w, unsigned int h, const char *tex XSetForeground(drw->dpy, drw->gc, invert ? drw->scheme->fg->pix : drw->scheme->bg->pix); 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); } curfont = drw->fonts[0]; diff --git a/drw.h b/drw.h index e3b8515..1fed824 100644 --- a/drw.h +++ b/drw.h @@ -30,6 +30,9 @@ typedef struct { Display *dpy; int screen; Window root; + Visual *visual; + unsigned int depth; + Colormap cmap; Drawable drawable; GC gc; ClrScheme *scheme; @@ -43,7 +46,7 @@ typedef struct { } Extnts; /* Drawable abstraction */ -Drw *drw_create(Display *, int, Window, unsigned int, unsigned int); +Drw *drw_create(Display *, int, Window, unsigned int, unsigned int, Visual*, unsigned int, Colormap); void drw_resize(Drw *, unsigned int, unsigned int); void drw_free(Drw *); @@ -55,7 +58,7 @@ void drw_font_getexts(Fnt *, const char *, unsigned int, Extnts *); unsigned int drw_font_getexts_width(Fnt *, const char *, unsigned int); /* Colour abstraction */ -Clr *drw_clr_create(Drw *, const char *); +Clr *drw_clr_create(Drw *, const char *, unsigned int); void drw_clr_free(Clr *); /* Cursor abstraction */ diff --git a/dwm.c b/dwm.c index ff7e096..286fb10 100644 --- a/dwm.c +++ b/dwm.c @@ -57,6 +57,8 @@ #define TAGMASK ((1 << LENGTH(tags)) - 1) #define TEXTW(X) (drw_text(drw, 0, 0, 0, 0, (X), 0) + drw->fonts[0]->h) +#define OPAQUE 0xffU + /* enums */ enum { CurNormal, CurResize, CurMove, CurLast }; /* cursor */ enum { SchemeNorm, SchemeSel, SchemeLast }; /* color schemes */ @@ -232,6 +234,7 @@ 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 */ @@ -267,6 +270,11 @@ static Drw *drw; static Monitor *mons, *selmon; static Window root; +static int useargb = 0; +static Visual *visual; +static int depth; +static Colormap cmap; + /* configuration, allows nested code to access above variables */ #include "config.h" @@ -1561,7 +1569,8 @@ 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); drw_load_fonts(drw, fonts, LENGTH(fonts)); if (!drw->fontcount) die("no fonts could be loaded.\n"); @@ -1585,12 +1594,12 @@ setup(void) cursor[CurResize] = drw_cur_create(drw, XC_sizing); cursor[CurMove] = drw_cur_create(drw, XC_fleur); /* init appearance */ - scheme[SchemeNorm].border = drw_clr_create(drw, normbordercolor); - scheme[SchemeNorm].bg = drw_clr_create(drw, normbgcolor); - scheme[SchemeNorm].fg = drw_clr_create(drw, normfgcolor); - scheme[SchemeSel].border = drw_clr_create(drw, selbordercolor); - scheme[SchemeSel].bg = drw_clr_create(drw, selbgcolor); - scheme[SchemeSel].fg = drw_clr_create(drw, selfgcolor); + scheme[SchemeNorm].border = drw_clr_create(drw, normbordercolor, borderalpha); + scheme[SchemeNorm].bg = drw_clr_create(drw, normbgcolor, baralpha); + scheme[SchemeNorm].fg = drw_clr_create(drw, normfgcolor, OPAQUE); + scheme[SchemeSel].border = drw_clr_create(drw, selbordercolor, borderalpha); + scheme[SchemeSel].bg = drw_clr_create(drw, selbgcolor, baralpha); + scheme[SchemeSel].fg = drw_clr_create(drw, selfgcolor, OPAQUE); /* init bars */ updatebars(); updatestatus(); @@ -1803,15 +1812,17 @@ updatebars(void) Monitor *m; XSetWindowAttributes wa = { .override_redirect = True, - .background_pixmap = ParentRelative, + .background_pixel = 0, + .border_pixel = 0, + .colormap = cmap, .event_mask = ButtonPressMask|ExposureMask }; 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); } @@ -2112,6 +2123,43 @@ xerrorstart(Display *dpy, XErrorEvent *ee) } 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) { Client *c = selmon->sel; -- 2.1.4
