From d59a5a5409e4078c2c1b5ead786e1312d431c9a8 Mon Sep 17 00:00:00 2001 From: blatzfab Date: Sun, 12 Jun 2022 18:42:28 +0200 Subject: [PATCH] [PATCH] adds opacity on a per client basis --- config.def.h | 10 +++++++--- dwm.c | 37 ++++++++++++++++++++++++++++++++++++- 2 files changed, 43 insertions(+), 4 deletions(-) diff --git a/config.def.h b/config.def.h index a2ac963..4b6903c 100644 --- a/config.def.h +++ b/config.def.h @@ -5,6 +5,7 @@ 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 */ static const int topbar = 1; /* 0 means bottom bar */ +static const double defaultopacity = 0.75; static const char *fonts[] = { "monospace:size=10" }; static const char dmenufont[] = "monospace:size=10"; static const char col_gray1[] = "#222222"; @@ -26,9 +27,10 @@ static const Rule rules[] = { * WM_CLASS(STRING) = instance, class * WM_NAME(STRING) = title */ - /* class instance title tags mask isfloating monitor */ - { "Gimp", NULL, NULL, 0, 1, -1 }, - { "Firefox", NULL, NULL, 1 << 8, 0, -1 }, + /* class instance title tags mask isfloating opacity monitor */ + { "Gimp", NULL, NULL, 0, 1, 1.0, -1 }, + { "Firefox", NULL, NULL, 1 << 8, 0, 1.0, -1 }, + { "St", NULL, NULL, 0, 0, defaultopacity, -1}, }; /* layout(s) */ @@ -85,6 +87,8 @@ static Key keys[] = { { MODKEY, XK_period, focusmon, {.i = +1 } }, { MODKEY|ShiftMask, XK_comma, tagmon, {.i = -1 } }, { MODKEY|ShiftMask, XK_period, tagmon, {.i = +1 } }, + { MODKEY|ShiftMask, XK_KP_Add, changeopacity, {.f = +0.1}}, + { MODKEY|ShiftMask, XK_KP_Subtract, changeopacity, {.f = -0.1}}, TAGKEYS( XK_1, 0) TAGKEYS( XK_2, 1) TAGKEYS( XK_3, 2) diff --git a/dwm.c b/dwm.c index 5646a5c..591dff9 100644 --- a/dwm.c +++ b/dwm.c @@ -62,7 +62,7 @@ enum { CurNormal, CurResize, CurMove, CurLast }; /* cursor */ enum { SchemeNorm, SchemeSel }; /* color schemes */ enum { NetSupported, NetWMName, NetWMState, NetWMCheck, NetWMFullscreen, NetActiveWindow, NetWMWindowType, - NetWMWindowTypeDialog, NetClientList, NetLast }; /* EWMH atoms */ + NetWMWindowTypeDialog, NetClientList, NetWMWindowsOpacity, NetLast }; /* EWMH atoms */ enum { WMProtocols, WMDelete, WMState, WMTakeFocus, WMLast }; /* default atoms */ enum { ClkTagBar, ClkLtSymbol, ClkStatusText, ClkWinTitle, ClkClientWin, ClkRootWin, ClkLast }; /* clicks */ @@ -95,6 +95,7 @@ struct Client { int isfixed, isfloating, isurgent, neverfocus, oldstate, isfullscreen; Client *next; Client *snext; + double opacity; Monitor *mon; Window win; }; @@ -138,6 +139,7 @@ typedef struct { const char *title; unsigned int tags; int isfloating; + double opacity; int monitor; } Rule; @@ -149,6 +151,7 @@ static void arrangemon(Monitor *m); static void attach(Client *c); static void attachstack(Client *c); static void buttonpress(XEvent *e); +static void changeopacity(const Arg *arg); static void checkotherwm(void); static void cleanup(void); static void cleanupmon(Monitor *mon); @@ -185,6 +188,7 @@ static void monocle(Monitor *m); static void motionnotify(XEvent *e); static void movemouse(const Arg *arg); static Client *nexttiled(Client *c); +static void opacity(Client *c, double opacity); static void pop(Client *); static void propertynotify(XEvent *e); static void quit(const Arg *arg); @@ -288,6 +292,7 @@ applyrules(Client *c) /* rule matching */ c->isfloating = 0; c->tags = 0; + c->opacity = defaultopacity; XGetClassHint(dpy, c->win, &ch); class = ch.res_class ? ch.res_class : broken; instance = ch.res_name ? ch.res_name : broken; @@ -300,6 +305,7 @@ applyrules(Client *c) { c->isfloating = r->isfloating; c->tags |= r->tags; + c->opacity = r->opacity; for (m = mons; m && m->num != r->monitor; m = m->next); if (m) c->mon = m; @@ -458,6 +464,21 @@ buttonpress(XEvent *e) buttons[i].func(click == ClkTagBar && buttons[i].arg.i == 0 ? &arg : &buttons[i].arg); } +void +changeopacity(const Arg *arg) +{ + if (!selmon->sel) + return; + selmon->sel->opacity+=arg->f; + if(selmon->sel->opacity > 1.0) + selmon->sel->opacity = 1.0; + + if(selmon->sel->opacity < 0) + selmon->sel->opacity = 0; + + opacity(selmon->sel, selmon->sel->opacity); +} + void checkotherwm(void) { @@ -1045,6 +1066,7 @@ manage(Window w, XWindowAttributes *wa) c->mon = selmon; applyrules(c); } + opacity(c, c->opacity); if (c->x + WIDTH(c) > c->mon->mx + c->mon->mw) c->x = c->mon->mx + c->mon->mw - WIDTH(c); @@ -1206,6 +1228,18 @@ nexttiled(Client *c) return c; } +void +opacity(Client *c, double opacity) +{ + if(opacity >= 0 && opacity <= 1) { + unsigned long real_opacity[] = { opacity * 0xffffffff }; + XChangeProperty(dpy, c->win, netatom[NetWMWindowsOpacity], XA_CARDINAL, + 32, PropModeReplace, (unsigned char *)real_opacity, + 1); + } else + XDeleteProperty(dpy, c->win, netatom[NetWMWindowsOpacity]); +} + void pop(Client *c) { @@ -1569,6 +1603,7 @@ setup(void) netatom[NetWMWindowType] = XInternAtom(dpy, "_NET_WM_WINDOW_TYPE", False); netatom[NetWMWindowTypeDialog] = XInternAtom(dpy, "_NET_WM_WINDOW_TYPE_DIALOG", False); netatom[NetClientList] = XInternAtom(dpy, "_NET_CLIENT_LIST", False); + netatom[NetWMWindowsOpacity] = XInternAtom(dpy, "_NET_WM_WINDOW_OPACITY", False); /* init cursors */ cursor[CurNormal] = drw_cur_create(drw, XC_left_ptr); cursor[CurResize] = drw_cur_create(drw, XC_sizing); -- 2.36.1