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	dwm-clientopacity-20220612-d3f93c7.diff (6055B)
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	1 From d59a5a5409e4078c2c1b5ead786e1312d431c9a8 Mon Sep 17 00:00:00 2001
	2 From: blatzfab <[email protected]>
	3 Date: Sun, 12 Jun 2022 18:42:28 +0200
	4 Subject: [PATCH] [PATCH] adds opacity on a per client basis
	5
	6 ---
	7 config.def.h \| 10 +++++++---
	8 dwm.c \| 37 ++++++++++++++++++++++++++++++++++++-
	9 2 files changed, 43 insertions(+), 4 deletions(-)
	10
	11 diff --git a/config.def.h b/config.def.h
	12 index a2ac963..4b6903c 100644
	13 --- a/config.def.h
	14 +++ b/config.def.h
	15 @@ -5,6 +5,7 @@ static const unsigned int borderpx = 1; /* borde…
	16 static const unsigned int snap = 32; /* snap pixel */
	17 static const int showbar = 1; /* 0 means no bar */
	18 static const int topbar = 1; /* 0 means bottom bar */
	19 +static const double defaultopacity = 0.75;
	20 static const char *fonts[] = { "monospace:size=10" };
	21 static const char dmenufont[] = "monospace:size=10";
	22 static const char col_gray1[] = "#222222";
	23 @@ -26,9 +27,10 @@ static const Rule rules[] = {
	24 * WM_CLASS(STRING) = instance, class
	25 * WM_NAME(STRING) = title
	26 */
	27 - /* class instance title tags mask isfloating …
	28 - { "Gimp", NULL, NULL, 0, 1, …
	29 - { "Firefox", NULL, NULL, 1 << 8, 0, …
	30 + /* class instance title tags mask isfloating …
	31 + { "Gimp", NULL, NULL, 0, 1, …
	32 + { "Firefox", NULL, NULL, 1 << 8, 0, …
	33 + { "St", NULL, NULL, 0, 0, …
	34 };
	35
	36 /* layout(s) */
	37 @@ -85,6 +87,8 @@ static Key keys[] = {
	38 { MODKEY, XK_period, focusmon, {.i …
	39 { MODKEY\|ShiftMask, XK_comma, tagmon, {.i …
	40 { MODKEY\|ShiftMask, XK_period, tagmon, {.i …
	41 + { MODKEY\|ShiftMask, XK_KP_Add, changeopacity, …
	42 + { MODKEY\|ShiftMask, XK_KP_Subtract, changeopacit…
	43 TAGKEYS( XK_1, 0)
	44 TAGKEYS( XK_2, 1)
	45 TAGKEYS( XK_3, 2)
	46 diff --git a/dwm.c b/dwm.c
	47 index 5646a5c..591dff9 100644
	48 --- a/dwm.c
	49 +++ b/dwm.c
	50 @@ -62,7 +62,7 @@ enum { CurNormal, CurResize, CurMove, CurLast }; /* cu…
	51 enum { SchemeNorm, SchemeSel }; /* color schemes */
	52 enum { NetSupported, NetWMName, NetWMState, NetWMCheck,
	53 NetWMFullscreen, NetActiveWindow, NetWMWindowType,
	54 - NetWMWindowTypeDialog, NetClientList, NetLast }; /* EWMH atoms */
	55 + NetWMWindowTypeDialog, NetClientList, NetWMWindowsOpacity, NetLa…
	56 enum { WMProtocols, WMDelete, WMState, WMTakeFocus, WMLast }; /* defaul…
	57 enum { ClkTagBar, ClkLtSymbol, ClkStatusText, ClkWinTitle,
	58 ClkClientWin, ClkRootWin, ClkLast }; /* clicks */
	59 @@ -95,6 +95,7 @@ struct Client {
	60 int isfixed, isfloating, isurgent, neverfocus, oldstate, isfull…
	61 Client *next;
	62 Client *snext;
	63 + double opacity;
	64 Monitor *mon;
	65 Window win;
	66 };
	67 @@ -138,6 +139,7 @@ typedef struct {
	68 const char *title;
	69 unsigned int tags;
	70 int isfloating;
	71 + double opacity;
	72 int monitor;
	73 } Rule;
	74
	75 @@ -149,6 +151,7 @@ static void arrangemon(Monitor *m);
	76 static void attach(Client *c);
	77 static void attachstack(Client *c);
	78 static void buttonpress(XEvent *e);
	79 +static void changeopacity(const Arg *arg);
	80 static void checkotherwm(void);
	81 static void cleanup(void);
	82 static void cleanupmon(Monitor *mon);
	83 @@ -185,6 +188,7 @@ static void monocle(Monitor *m);
	84 static void motionnotify(XEvent *e);
	85 static void movemouse(const Arg *arg);
	86 static Client nexttiled(Client c);
	87 +static void opacity(Client *c, double opacity);
	88 static void pop(Client *);
	89 static void propertynotify(XEvent *e);
	90 static void quit(const Arg *arg);
	91 @@ -288,6 +292,7 @@ applyrules(Client *c)
	92 /* rule matching */
	93 c->isfloating = 0;
	94 c->tags = 0;
	95 + c->opacity = defaultopacity;
	96 XGetClassHint(dpy, c->win, &ch);
	97 class = ch.res_class ? ch.res_class : broken;
	98 instance = ch.res_name ? ch.res_name : broken;
	99 @@ -300,6 +305,7 @@ applyrules(Client *c)
	100 {
	101 c->isfloating = r->isfloating;
	102 c->tags \|= r->tags;
	103 + c->opacity = r->opacity;
	104 for (m = mons; m && m->num != r->monitor; m = m…
	105 if (m)
	106 c->mon = m;
	107 @@ -458,6 +464,21 @@ buttonpress(XEvent *e)
	108 buttons[i].func(click == ClkTagBar && buttons[i…
	109 }
	110
	111 +void
	112 +changeopacity(const Arg *arg)
	113 +{
	114 + if (!selmon->sel)
	115 + return;
	116 + selmon->sel->opacity+=arg->f;
	117 + if(selmon->sel->opacity > 1.0)
	118 + selmon->sel->opacity = 1.0;
	119 +
	120 + if(selmon->sel->opacity < 0)
	121 + selmon->sel->opacity = 0;
	122 +
	123 + opacity(selmon->sel, selmon->sel->opacity);
	124 +}
	125 +
	126 void
	127 checkotherwm(void)
	128 {
	129 @@ -1045,6 +1066,7 @@ manage(Window w, XWindowAttributes *wa)
	130 c->mon = selmon;
	131 applyrules(c);
	132 }
	133 + opacity(c, c->opacity);
	134
	135 if (c->x + WIDTH(c) > c->mon->mx + c->mon->mw)
	136 c->x = c->mon->mx + c->mon->mw - WIDTH(c);
	137 @@ -1206,6 +1228,18 @@ nexttiled(Client *c)
	138 return c;
	139 }
	140
	141 +void
	142 +opacity(Client *c, double opacity)
	143 +{
	144 + if(opacity >= 0 && opacity <= 1) {
	145 + unsigned long real_opacity[] = { opacity * 0xffffffff };
	146 + XChangeProperty(dpy, c->win, netatom[NetWMWindowsOpacit…
	147 + 32, PropModeReplace, (unsigned char *)r…
	148 + 1);
	149 + } else
	150 + XDeleteProperty(dpy, c->win, netatom[NetWMWindowsOpacit…
	151 +}
	152 +
	153 void
	154 pop(Client *c)
	155 {
	156 @@ -1569,6 +1603,7 @@ setup(void)
	157 netatom[NetWMWindowType] = XInternAtom(dpy, "_NET_WM_WINDOW_TYP…
	158 netatom[NetWMWindowTypeDialog] = XInternAtom(dpy, "_NET_WM_WIND…
	159 netatom[NetClientList] = XInternAtom(dpy, "_NET_CLIENT_LIST", F…
	160 + netatom[NetWMWindowsOpacity] = XInternAtom(dpy, "_NET_WM_WINDOW…
	161 /* init cursors */
	162 cursor[CurNormal] = drw_cur_create(drw, XC_left_ptr);
	163 cursor[CurResize] = drw_cur_create(drw, XC_sizing);
	164 --
	165 2.36.1
	166