From d1a3c6cd1f8c84109ac181c8a7dbb29181862aea Mon Sep 17 00:00:00 2001 From: Luke Smith Date: Sat, 8 Feb 2020 15:27:02 -0500 Subject: [PATCH] alpha patch for embedded in transparent st --- config.h | 9 +++++++++ config.mk | 2 +- dmenu.c | 58 +++++++++++++++++++++++++++++++++++++++++++++++++++---- drw.c | 25 ++++++++++++------------ drw.h | 9 ++++++--- 5 files changed, 83 insertions(+), 20 deletions(-) diff --git a/config.h b/config.h index c0d7d74..4c2f69b 100644 --- a/config.h +++ b/config.h @@ -6,6 +6,8 @@ static int topbar = 1; /* -b option; if 0, dmenu appears a static const char *fonts[] = { "monospace:size=14" }; +static const unsigned int bgalpha = 0xe0; +static const unsigned int fgalpha = OPAQUE; static const char *prompt = NULL; /* -p option; prompt to the left of input field */ static const char *colors[SchemeLast][2] = { /* fg bg */ @@ -13,6 +15,13 @@ static const char *colors[SchemeLast][2] = { [SchemeSel] = { "#eeeeee", "#005577" }, [SchemeOut] = { "#000000", "#00ffff" }, }; +static const unsigned int alphas[SchemeLast][2] = { + /* fgalpha bgalphga */ + [SchemeNorm] = { fgalpha, bgalpha }, + [SchemeSel] = { fgalpha, bgalpha }, + [SchemeOut] = { fgalpha, bgalpha }, +}; + /* -l option; if nonzero, dmenu uses vertical list with given number of lines */ static unsigned int lines = 0; diff --git a/config.mk b/config.mk index 0929b4a..260eeae 100644 --- a/config.mk +++ b/config.mk @@ -20,7 +20,7 @@ FREETYPEINC = /usr/include/freetype2 # includes and libs INCS = -I$(X11INC) -I$(FREETYPEINC) -LIBS = -L$(X11LIB) -lX11 $(XINERAMALIBS) $(FREETYPELIBS) +LIBS = -L$(X11LIB) -lX11 $(XINERAMALIBS) $(FREETYPELIBS) -lXrender # flags CPPFLAGS = -D_DEFAULT_SOURCE -D_BSD_SOURCE -D_XOPEN_SOURCE=700 -D_POSIX_C_SOURCE=200809L -DVERSION=\"$(VERSION)\" $(XINERAMAFLAGS) diff --git a/dmenu.c b/dmenu.c index 6b8f51b..8f72f60 100644 --- a/dmenu.c +++ b/dmenu.c @@ -25,6 +25,9 @@ #define LENGTH(X) (sizeof X / sizeof X[0]) #define TEXTW(X) (drw_fontset_getwidth(drw, (X)) + lrpad) +/* define opaqueness */ +#define OPAQUE 0xFFU + /* enums */ enum { SchemeNorm, SchemeSel, SchemeOut, SchemeLast }; /* color schemes */ @@ -51,6 +54,10 @@ static Window root, parentwin, win; static XIC xic; static Drw *drw; +static int usergb = 0; +static Visual *visual; +static int depth; +static Colormap cmap; static Clr *scheme[SchemeLast]; #include "config.h" @@ -58,6 +65,46 @@ static Clr *scheme[SchemeLast]; static int (*fstrncmp)(const char *, const char *, size_t) = strncmp; static char *(*fstrstr)(const char *, const char *) = strstr; + +static 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); + usergb = 1; + break; + } + } + + XFree(infos); + + if (! visual) { + visual = DefaultVisual(dpy, screen); + depth = DefaultDepth(dpy, screen); + cmap = DefaultColormap(dpy, screen); + } +} + static void appenditem(struct item *item, struct item **list, struct item **last) { @@ -597,7 +644,7 @@ setup(void) #endif /* init appearance */ for (j = 0; j < SchemeLast; j++) - scheme[j] = drw_scm_create(drw, colors[j], 2); + scheme[j] = drw_scm_create(drw, colors[j], alphas[j], 2); clip = XInternAtom(dpy, "CLIPBOARD", False); utf8 = XInternAtom(dpy, "UTF8_STRING", False); @@ -653,10 +700,12 @@ setup(void) /* create menu window */ swa.override_redirect = True; swa.background_pixel = scheme[SchemeNorm][ColBg].pixel; + swa.border_pixel = 0; + swa.colormap = cmap; swa.event_mask = ExposureMask | KeyPressMask | VisibilityChangeMask; win = XCreateWindow(dpy, parentwin, x, y, mw, mh, 0, - CopyFromParent, CopyFromParent, CopyFromParent, - CWOverrideRedirect | CWBackPixel | CWEventMask, &swa); + depth, InputOutput, visual, + CWOverrideRedirect | CWBackPixel | CWColormap | CWEventMask | CWBorderPixel, &swa); XSetClassHint(dpy, win, &ch); /* open input methods */ @@ -742,7 +791,8 @@ main(int argc, char *argv[]) if (!XGetWindowAttributes(dpy, parentwin, &wa)) die("could not get embedding window attributes: 0x%lx", parentwin); - drw = drw_create(dpy, screen, root, wa.width, wa.height); + xinitvisual(); + drw = drw_create(dpy, screen, root, wa.width, wa.height, visual, depth, cmap); if (!drw_fontset_create(drw, fonts, LENGTH(fonts))) die("no fonts could be loaded."); lrpad = drw->fonts->h; diff --git a/drw.c b/drw.c index 8fd1ca4..6ad9e2d 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 @@ -193,21 +196,21 @@ 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 & 0x00FFFFFFFU) | 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; @@ -217,7 +220,7 @@ 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; } @@ -273,9 +276,7 @@ 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 4c67419..4f66f0d 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);