290 lines
9.5 KiB
Diff
290 lines
9.5 KiB
Diff
From 51f9c34480b984e261a738e5295f518b42c2f29c Mon Sep 17 00:00:00 2001
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From: Petrus Karell <pk@petruskarell.fi>
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Date: Mon, 19 Oct 2020 19:15:24 +0300
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Subject: [PATCH] Allow dwm to have translucent bars, while keeping all
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the text on it opaque, just like the alpha-patch for st. Updated for 61bb8b2
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---
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config.def.h | 7 ++++++
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config.mk | 2 +-
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drw.c | 26 ++++++++++++-----------
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drw.h | 9 +++++---
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dwm.c | 60 ++++++++++++++++++++++++++++++++++++++++++++++------
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5 files changed, 82 insertions(+), 22 deletions(-)
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diff --git a/config.def.h b/config.def.h
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index 1c0b587..4f68fe8 100644
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--- a/config.def.h
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+++ b/config.def.h
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@@ -12,11 +12,18 @@ static const char col_gray2[] = "#444444";
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static const char col_gray3[] = "#bbbbbb";
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static const char col_gray4[] = "#eeeeee";
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static const char col_cyan[] = "#005577";
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+static const unsigned int baralpha = 0xd0;
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+static const unsigned int borderalpha = OPAQUE;
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static const char *colors[][3] = {
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/* fg bg border */
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[SchemeNorm] = { col_gray3, col_gray1, col_gray2 },
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[SchemeSel] = { col_gray4, col_cyan, col_cyan },
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};
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+static const unsigned int alphas[][3] = {
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+ /* fg bg border */
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+ [SchemeNorm] = { OPAQUE, baralpha, borderalpha },
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+ [SchemeSel] = { OPAQUE, baralpha, borderalpha },
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+};
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/* tagging */
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static const char *tags[] = { "1", "2", "3", "4", "5", "6", "7", "8", "9" };
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diff --git a/config.mk b/config.mk
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index 7084c33..21b5404 100644
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--- a/config.mk
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+++ b/config.mk
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@@ -22,7 +22,7 @@ FREETYPEINC = /usr/include/freetype2
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# includes and libs
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INCS = -I${X11INC} -I${FREETYPEINC}
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-LIBS = -L${X11LIB} -lX11 ${XINERAMALIBS} ${FREETYPELIBS}
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+LIBS = -L${X11LIB} -lX11 ${XINERAMALIBS} ${FREETYPELIBS} -lXrender
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# flags
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CPPFLAGS = -D_DEFAULT_SOURCE -D_BSD_SOURCE -D_POSIX_C_SOURCE=200809L -DVERSION=\"${VERSION}\" ${XINERAMAFLAGS}
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diff --git a/drw.c b/drw.c
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index 4cdbcbe..fe3aadd 100644
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--- a/drw.c
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+++ b/drw.c
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@@ -61,7 +61,7 @@ utf8decode(const char *c, long *u, size_t clen)
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}
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Drw *
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-drw_create(Display *dpy, int screen, Window root, unsigned int w, unsigned int h)
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+drw_create(Display *dpy, int screen, Window root, unsigned int w, unsigned int h, Visual *visual, unsigned int depth, Colormap cmap)
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{
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Drw *drw = ecalloc(1, sizeof(Drw));
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@@ -70,8 +70,11 @@ drw_create(Display *dpy, int screen, Window root, unsigned int w, unsigned int h
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drw->root = root;
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drw->w = w;
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drw->h = h;
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- drw->drawable = XCreatePixmap(dpy, root, w, h, DefaultDepth(dpy, screen));
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- drw->gc = XCreateGC(dpy, root, 0, NULL);
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+ drw->visual = visual;
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+ drw->depth = depth;
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+ drw->cmap = cmap;
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+ drw->drawable = XCreatePixmap(dpy, root, w, h, depth);
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+ drw->gc = XCreateGC(dpy, drw->drawable, 0, NULL);
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XSetLineAttributes(dpy, drw->gc, 1, LineSolid, CapButt, JoinMiter);
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return drw;
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@@ -87,7 +90,7 @@ drw_resize(Drw *drw, unsigned int w, unsigned int h)
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drw->h = h;
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if (drw->drawable)
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XFreePixmap(drw->dpy, drw->drawable);
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- drw->drawable = XCreatePixmap(drw->dpy, drw->root, w, h, DefaultDepth(drw->dpy, drw->screen));
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+ drw->drawable = XCreatePixmap(drw->dpy, drw->root, w, h, drw->depth);
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}
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void
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@@ -194,21 +197,22 @@ drw_fontset_free(Fnt *font)
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}
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void
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-drw_clr_create(Drw *drw, Clr *dest, const char *clrname)
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+drw_clr_create(Drw *drw, Clr *dest, const char *clrname, unsigned int alpha)
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{
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if (!drw || !dest || !clrname)
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return;
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- if (!XftColorAllocName(drw->dpy, DefaultVisual(drw->dpy, drw->screen),
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- DefaultColormap(drw->dpy, drw->screen),
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+ if (!XftColorAllocName(drw->dpy, drw->visual, drw->cmap,
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clrname, dest))
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die("error, cannot allocate color '%s'", clrname);
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+
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+ dest->pixel = (dest->pixel & 0x00ffffffU) | (alpha << 24);
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}
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/* Wrapper to create color schemes. The caller has to call free(3) on the
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* returned color scheme when done using it. */
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Clr *
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-drw_scm_create(Drw *drw, const char *clrnames[], size_t clrcount)
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+drw_scm_create(Drw *drw, const char *clrnames[], const unsigned int alphas[], size_t clrcount)
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{
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size_t i;
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Clr *ret;
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@@ -218,7 +222,7 @@ drw_scm_create(Drw *drw, const char *clrnames[], size_t clrcount)
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return NULL;
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for (i = 0; i < clrcount; i++)
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- drw_clr_create(drw, &ret[i], clrnames[i]);
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+ drw_clr_create(drw, &ret[i], clrnames[i], alphas[i]);
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return ret;
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}
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@@ -274,9 +278,7 @@ drw_text(Drw *drw, int x, int y, unsigned int w, unsigned int h, unsigned int lp
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} else {
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XSetForeground(drw->dpy, drw->gc, drw->scheme[invert ? ColFg : ColBg].pixel);
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XFillRectangle(drw->dpy, drw->drawable, drw->gc, x, y, w, h);
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- d = XftDrawCreate(drw->dpy, drw->drawable,
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- DefaultVisual(drw->dpy, drw->screen),
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- DefaultColormap(drw->dpy, drw->screen));
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+ d = XftDrawCreate(drw->dpy, drw->drawable, drw->visual, drw->cmap);
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x += lpad;
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w -= lpad;
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}
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diff --git a/drw.h b/drw.h
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index 4bcd5ad..a56f523 100644
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--- a/drw.h
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+++ b/drw.h
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@@ -20,6 +20,9 @@ typedef struct {
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Display *dpy;
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int screen;
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Window root;
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+ Visual *visual;
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+ unsigned int depth;
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+ Colormap cmap;
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Drawable drawable;
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GC gc;
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Clr *scheme;
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@@ -27,7 +30,7 @@ typedef struct {
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} Drw;
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/* Drawable abstraction */
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-Drw *drw_create(Display *dpy, int screen, Window win, unsigned int w, unsigned int h);
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+Drw *drw_create(Display *dpy, int screen, Window win, unsigned int w, unsigned int h, Visual *visual, unsigned int depth, Colormap cmap);
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void drw_resize(Drw *drw, unsigned int w, unsigned int h);
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void drw_free(Drw *drw);
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@@ -38,8 +41,8 @@ unsigned int drw_fontset_getwidth(Drw *drw, const char *text);
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void drw_font_getexts(Fnt *font, const char *text, unsigned int len, unsigned int *w, unsigned int *h);
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/* Colorscheme abstraction */
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-void drw_clr_create(Drw *drw, Clr *dest, const char *clrname);
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-Clr *drw_scm_create(Drw *drw, const char *clrnames[], size_t clrcount);
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+void drw_clr_create(Drw *drw, Clr *dest, const char *clrname, unsigned int alpha);
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+Clr *drw_scm_create(Drw *drw, const char *clrnames[], const unsigned int alphas[], size_t clrcount);
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/* Cursor abstraction */
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Cur *drw_cur_create(Drw *drw, int shape);
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diff --git a/dwm.c b/dwm.c
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index 664c527..d8005c7 100644
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--- a/dwm.c
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+++ b/dwm.c
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@@ -57,6 +57,8 @@
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#define TAGMASK ((1 << LENGTH(tags)) - 1)
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#define TEXTW(X) (drw_fontset_getwidth(drw, (X)) + lrpad)
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+#define OPAQUE 0xffU
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+
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/* enums */
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enum { CurNormal, CurResize, CurMove, CurLast }; /* cursor */
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enum { SchemeNorm, SchemeSel }; /* color schemes */
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@@ -233,6 +235,7 @@ static Monitor *wintomon(Window w);
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static int xerror(Display *dpy, XErrorEvent *ee);
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static int xerrordummy(Display *dpy, XErrorEvent *ee);
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static int xerrorstart(Display *dpy, XErrorEvent *ee);
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+static void xinitvisual();
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static void zoom(const Arg *arg);
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/* variables */
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@@ -269,6 +272,11 @@ static Drw *drw;
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static Monitor *mons, *selmon;
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static Window root, wmcheckwin;
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+static int useargb = 0;
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+static Visual *visual;
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+static int depth;
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+static Colormap cmap;
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+
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/* configuration, allows nested code to access above variables */
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#include "config.h"
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@@ -1542,7 +1550,8 @@ setup(void)
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sw = DisplayWidth(dpy, screen);
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sh = DisplayHeight(dpy, screen);
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root = RootWindow(dpy, screen);
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- drw = drw_create(dpy, screen, root, sw, sh);
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+ xinitvisual();
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+ drw = drw_create(dpy, screen, root, sw, sh, visual, depth, cmap);
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if (!drw_fontset_create(drw, fonts, LENGTH(fonts)))
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die("no fonts could be loaded.");
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lrpad = drw->fonts->h;
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@@ -1570,7 +1579,7 @@ setup(void)
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/* init appearance */
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scheme = ecalloc(LENGTH(colors), sizeof(Clr *));
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for (i = 0; i < LENGTH(colors); i++)
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- scheme[i] = drw_scm_create(drw, colors[i], 3);
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+ scheme[i] = drw_scm_create(drw, colors[i], alphas[i], 3);
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/* init bars */
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updatebars();
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updatestatus();
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@@ -1807,16 +1816,18 @@ updatebars(void)
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Monitor *m;
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XSetWindowAttributes wa = {
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.override_redirect = True,
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- .background_pixmap = ParentRelative,
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+ .background_pixel = 0,
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+ .border_pixel = 0,
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+ .colormap = cmap,
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.event_mask = ButtonPressMask|ExposureMask
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};
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XClassHint ch = {"dwm", "dwm"};
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for (m = mons; m; m = m->next) {
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if (m->barwin)
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continue;
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- m->barwin = XCreateWindow(dpy, root, m->wx, m->by, m->ww, bh, 0, DefaultDepth(dpy, screen),
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- CopyFromParent, DefaultVisual(dpy, screen),
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- CWOverrideRedirect|CWBackPixmap|CWEventMask, &wa);
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+ m->barwin = XCreateWindow(dpy, root, m->wx, m->by, m->ww, bh, 0, depth,
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+ InputOutput, visual,
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+ CWOverrideRedirect|CWBackPixel|CWBorderPixel|CWColormap|CWEventMask, &wa);
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XDefineCursor(dpy, m->barwin, cursor[CurNormal]->cursor);
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XMapRaised(dpy, m->barwin);
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XSetClassHint(dpy, m->barwin, &ch);
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@@ -2113,6 +2124,43 @@ xerrorstart(Display *dpy, XErrorEvent *ee)
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return -1;
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}
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+void
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+xinitvisual()
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+{
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+ XVisualInfo *infos;
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+ XRenderPictFormat *fmt;
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+ int nitems;
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+ int i;
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+
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+ XVisualInfo tpl = {
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+ .screen = screen,
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+ .depth = 32,
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+ .class = TrueColor
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+ };
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+ long masks = VisualScreenMask | VisualDepthMask | VisualClassMask;
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+
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+ infos = XGetVisualInfo(dpy, masks, &tpl, &nitems);
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+ visual = NULL;
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+ for(i = 0; i < nitems; i ++) {
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+ fmt = XRenderFindVisualFormat(dpy, infos[i].visual);
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+ if (fmt->type == PictTypeDirect && fmt->direct.alphaMask) {
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+ visual = infos[i].visual;
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+ depth = infos[i].depth;
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+ cmap = XCreateColormap(dpy, root, visual, AllocNone);
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+ useargb = 1;
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+ break;
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+ }
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+ }
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+
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+ XFree(infos);
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+
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+ if (! visual) {
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+ visual = DefaultVisual(dpy, screen);
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+ depth = DefaultDepth(dpy, screen);
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+ cmap = DefaultColormap(dpy, screen);
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+ }
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+}
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+
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void
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zoom(const Arg *arg)
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{
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--
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2.28.0
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