[wiki] [sites] [dwm][patch] xresources: font customization example || David JULIEN

From: <git_AT_suckless.org>
Date: Sun, 14 Mar 2021 18:44:21 +0100

commit 09ff1ef0702ac815fcbe7f780e57a512f1ec8195
Author: David JULIEN <swy7ch_AT_protonmail.com>
Date: Sun Mar 14 18:41:51 2021 +0100

    [dwm][patch] xresources: font customization example
    
    add an example of font customization via .Xresources, by defining new
    variables in config.def.h and using them in **fonts

diff --git a/dwm.suckless.org/patches/xresources/dwm-xresources-20210314.diff b/dwm.suckless.org/patches/xresources/dwm-xresources-20210314.diff
new file mode 100644
index 00000000..07e08f42
--- /dev/null
+++ b/dwm.suckless.org/patches/xresources/dwm-xresources-20210314.diff
_AT_@ -0,0 +1,242 @@
+From d28a26439326d7566a43459e1ef00b5b7c7f5b11 Mon Sep 17 00:00:00 2001
+From: David JULIEN <swy7ch_AT_protonmail.com>
+Date: Sun, 14 Mar 2021 18:19:17 +0100
+Subject: [PATCH] [PATCH] feat: manage font through xrdb
+
+add font management to the dwm-resources patch, enabling to manage fonts
+by sourcing $XRESOURCES
+---
+ config.def.h | 61 ++++++++++++++++++++++++++++++--------------
+ drw.c | 2 +-
+ drw.h | 2 +-
+ dwm.c | 72 ++++++++++++++++++++++++++++++++++++++++++++++++++++
+ 4 files changed, 116 insertions(+), 21 deletions(-)
+
+diff --git a/config.def.h b/config.def.h
+index 1c0b587..db7b7bb 100644
+--- a/config.def.h
++++ b/config.def.h
+_AT_@ -1,21 +1,23 @@
+ /* See LICENSE file for copyright and license details. */
+
+ /* appearance */
+-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 char *fonts[] = { "monospace:size=10" };
+-static const char dmenufont[] = "monospace:size=10";
+-static const char col_gray1[] = "#222222";
+-static const char col_gray2[] = "#444444";
+-static const char col_gray3[] = "#bbbbbb";
+-static const char col_gray4[] = "#eeeeee";
+-static const char col_cyan[] = "#005577";
+-static const char *colors[][3] = {
+- /* fg bg border */
+- [SchemeNorm] = { col_gray3, col_gray1, col_gray2 },
+- [SchemeSel] = { col_gray4, col_cyan, col_cyan },
++static unsigned int borderpx = 1; /* border pixel of windows */
++static unsigned int snap = 32; /* snap pixel */
++static int showbar = 1; /* 0 means no bar */
++static int topbar = 1; /* 0 means bottom bar */
++static char font[] = "monospace:size=10";
++static char dmenufont[] = "monospace:size=10";
++static const char *fonts[] = { font };
++static char normbgcolor[] = "#222222";
++static char normbordercolor[] = "#444444";
++static char normfgcolor[] = "#bbbbbb";
++static char selfgcolor[] = "#eeeeee";
++static char selbordercolor[] = "#005577";
++static char selbgcolor[] = "#005577";
++static char *colors[][3] = {
++ /* fg bg border */
++ [SchemeNorm] = { normfgcolor, normbgcolor, normbordercolor },
++ [SchemeSel] = { selfgcolor, selbgcolor, selbordercolor },
+ };
+
+ /* tagging */
+_AT_@ -32,9 +34,9 @@ static const Rule rules[] = {
+ };
+
+ /* layout(s) */
+-static const float mfact = 0.55; /* factor of master area size [0.05..0.95] */
+-static const int nmaster = 1; /* number of clients in master area */
+-static const int resizehints = 1; /* 1 means respect size hints in tiled resizals */
++static float mfact = 0.55; /* factor of master area size [0.05..0.95] */
++static int nmaster = 1; /* number of clients in master area */
++static int resizehints = 1; /* 1 means respect size hints in tiled resizals */
+
+ static const Layout layouts[] = {
+ /* symbol arrange function */
+_AT_@ -56,9 +58,30 @@ static const Layout layouts[] = {
+
+ /* commands */
+ static char dmenumon[2] = "0"; /* component of dmenucmd, manipulated in spawn() */
+-static const char *dmenucmd[] = { "dmenu_run", "-m", dmenumon, "-fn", dmenufont, "-nb", col_gray1, "-nf", col_gray3, "-sb", col_cyan, "-sf", col_gray4, NULL };
++static const char *dmenucmd[] = { "dmenu_run", "-m", dmenumon, "-fn", dmenufont, "-nb", normbgcolor, "-nf", normfgcolor, "-sb", selbordercolor, "-sf", selfgcolor, NULL };
+ static const char *termcmd[] = { "st", NULL };
+
++/*
++ * Xresources preferences to load at startup
++ */
++ResourcePref resources[] = {
++ { "font", STRING, &font },
++ { "dmenufont", STRING, &dmenufont },
++ { "normbgcolor", STRING, &normbgcolor },
++ { "normbordercolor", STRING, &normbordercolor },
++ { "normfgcolor", STRING, &normfgcolor },
++ { "selbgcolor", STRING, &selbgcolor },
++ { "selbordercolor", STRING, &selbordercolor },
++ { "selfgcolor", STRING, &selfgcolor },
++ { "borderpx", INTEGER, &borderpx },
++ { "snap", INTEGER, &snap },
++ { "showbar", INTEGER, &showbar },
++ { "topbar", INTEGER, &topbar },
++ { "nmaster", INTEGER, &nmaster },
++ { "resizehints", INTEGER, &resizehints },
++ { "mfact", FLOAT, &mfact },
++};
++
+ static Key keys[] = {
+ /* modifier key function argument */
+ { MODKEY, XK_p, spawn, {.v = dmenucmd } },
+diff --git a/drw.c b/drw.c
+index 4cdbcbe..8f1059e 100644
+--- a/drw.c
++++ b/drw.c
+_AT_@ -208,7 +208,7 @@ drw_clr_create(Drw *drw, Clr *dest, const char *clrname)
+ /* 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, char *clrnames[], size_t clrcount)
+ {
+ size_t i;
+ Clr *ret;
+diff --git a/drw.h b/drw.h
+index 4bcd5ad..42b04ce 100644
+--- a/drw.h
++++ b/drw.h
+_AT_@ -39,7 +39,7 @@ void drw_font_getexts(Fnt *font, const char *text, unsigned int len, unsigned in
+
+ /* 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);
++Clr *drw_scm_create(Drw *drw, char *clrnames[], size_t clrcount);
+
+ /* Cursor abstraction */
+ Cur *drw_cur_create(Drw *drw, int shape);
+diff --git a/dwm.c b/dwm.c
+index 664c527..17bb21e 100644
+--- a/dwm.c
++++ b/dwm.c
+_AT_@ -36,6 +36,7 @@
+ #include <X11/Xlib.h>
+ #include <X11/Xproto.h>
+ #include <X11/Xutil.h>
++#include <X11/Xresource.h>
+ #ifdef XINERAMA
+ #include <X11/extensions/Xinerama.h>
+ #endif /* XINERAMA */
+_AT_@ -141,6 +142,19 @@ typedef struct {
+ int monitor;
+ } Rule;
+
++/* Xresources preferences */
++enum resource_type {
++ STRING = 0,
++ INTEGER = 1,
++ FLOAT = 2
++};
++
++typedef struct {
++ char *name;
++ enum resource_type type;
++ void *dst;
++} ResourcePref;
++
+ /* function declarations */
+ static void applyrules(Client *c);
+ static int applysizehints(Client *c, int *x, int *y, int *w, int *h, int interact);
+_AT_@ -234,6 +248,8 @@ static int xerror(Display *dpy, XErrorEvent *ee);
+ static int xerrordummy(Display *dpy, XErrorEvent *ee);
+ static int xerrorstart(Display *dpy, XErrorEvent *ee);
+ static void zoom(const Arg *arg);
++static void load_xresources(void);
++static void resource_load(XrmDatabase db, char *name, enum resource_type rtype, void *dst);
+
+ /* variables */
+ static const char broken[] = "broken";
+_AT_@ -2127,6 +2143,60 @@ zoom(const Arg *arg)
+ pop(c);
+ }
+
++void
++resource_load(XrmDatabase db, char *name, enum resource_type rtype, void *dst)
++{
++ char *sdst = NULL;
++ int *idst = NULL;
++ float *fdst = NULL;
++
++ sdst = dst;
++ idst = dst;
++ fdst = dst;
++
++ char fullname[256];
++ char *type;
++ XrmValue ret;
++
++ snprintf(fullname, sizeof(fullname), "%s.%s", "dwm", name);
++ fullname[sizeof(fullname) - 1] = '++
++ XrmGetResource(db, fullname, "*", &type, &ret);
++ if (!(ret.addr == NULL || strncmp("String", type, 64)))
++ {
++ switch (rtype) {
++ case STRING:
++ strcpy(sdst, ret.addr);
++ break;
++ case INTEGER:
++ *idst = strtoul(ret.addr, NULL, 10);
++ break;
++ case FLOAT:
++ *fdst = strtof(ret.addr, NULL);
++ break;
++ }
++ }
++}
++
++void
++load_xresources(void)
++{
++ Display *display;
++ char *resm;
++ XrmDatabase db;
++ ResourcePref *p;
++
++ display = XOpenDisplay(NULL);
++ resm = XResourceManagerString(display);
++ if (!resm)
++ return;
++
++ db = XrmGetStringDatabase(resm);
++ for (p = resources; p < resources + LENGTH(resources); p++)
++ resource_load(db, p->name, p->type, p->dst);
++ XCloseDisplay(display);
++}
++
+ int
+ main(int argc, char *argv[])
+ {
+_AT_@ -2139,6 +2209,8 @@ main(int argc, char *argv[])
+ if (!(dpy = XOpenDisplay(NULL)))
+ die("dwm: cannot open display");
+ checkotherwm();
++ XrmInitialize();
++ load_xresources();
+ setup();
+ #ifdef __OpenBSD__
+ if (pledge("stdio rpath proc exec", NULL) == -1)
+--
+2.30.2
+
diff --git a/dwm.suckless.org/patches/xresources/index.md b/dwm.suckless.org/patches/xresources/index.md
index dd6b02de..a6bb62b9 100644
--- a/dwm.suckless.org/patches/xresources/index.md
+++ b/dwm.suckless.org/patches/xresources/index.md
_AT_@ -5,6 +5,8 @@ Description
 -----------
 This patch allows to handle settings from Xresources. It differs from xrdb patch in that it can handle any kind of setting as opposed to only color settings.
 
+The -20210314 patch adds an example on how you could set a custom font.
+
 Settings in config.h
 --------------------
 In `resources` struct is written the name, the type, and the address of the setting.
_AT_@ -23,10 +25,11 @@ In Xresources file setting names shoud be prefixed with "dwm."
 
 This patch is a port of the st patch of the same name, it also borrows some code from dwm's xrdb patch, so a thank is in order for the authors of those patches.
 
-
 Download
 --------
 * [dwm-xresources-6.2.diff](dwm-xresources-6.2.diff) (11/06/2020)
+* [dwm-xresources-20210314.diff](dwm-xresources-20210314.diff) (14/03/2021)
+
 
 Author
 ------
Received on Sun Mar 14 2021 - 18:44:21 CET