[wiki] [sites] [dwm][patch] vtcolors (get colors from linux virtual console) || Chris Noxz

From: <git_AT_suckless.org>
Date: Sun, 02 Feb 2020 10:25:44 +0100

commit a8d10ade0cf8162b514cb09363bd31fda863016c
Author: Chris Noxz <chris_AT_noxz.tech>
Date: Sun Feb 2 10:25:17 2020 +0100

    [dwm][patch] vtcolors (get colors from linux virtual console)

diff --git a/dwm.suckless.org/patches/vtcolors/dwm-vtcolors-6.2.diff b/dwm.suckless.org/patches/vtcolors/dwm-vtcolors-6.2.diff
new file mode 100644
index 00000000..c03fe529
--- /dev/null
+++ b/dwm.suckless.org/patches/vtcolors/dwm-vtcolors-6.2.diff
_AT_@ -0,0 +1,223 @@
+Author: Chris Noxz <chris_AT_noxz.tech>
+
+diff -up ../dwm-6.2/config.def.h ./config.def.h
+--- ../dwm-6.2/config.def.h 2019-02-02 13:55:28.000000000 +0100
++++ ./config.def.h 2020-02-02 10:56:38.865583817 +0100
+_AT_@ -12,10 +12,27 @@ static const char col_gray2[] = "#
+ 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 const char title_bg_dark[] = "#303030";
++static const char title_bg_light[] = "#fdfdfd";
++static const int color_ptrs[][3] = {
++ /* fg bg border */
++ [SchemeNorm] = { -1, -1, 5 },
++ [SchemeSel] = { -1, -1, 11 },
++ [SchemeTagsNorm] = { 2, 0, 0 },
++ [SchemeTagsSel] = { 6, 5, 5 },
++ [SchemeTitleNorm] = { 6, -1, -1 },
++ [SchemeTitleSel] = { 6, -1, -1 },
++ [SchemeStatus] = { 2, 0, 0 },
++};
++static char colors[][3][8] = {
++ /* fg bg border */
++ [SchemeNorm] = { "#000000", "#000000", "#000000" },
++ [SchemeSel] = { "#000000", "#000000", "#000000" },
++ [SchemeTagsNorm] = { "#000000", "#000000", "#000000" },
++ [SchemeTagsSel] = { "#000000", "#000000", "#000000" },
++ [SchemeTitleNorm] = { "#000000", "#000000", "#000000" },
++ [SchemeTitleSel] = { "#000000", "#000000", "#000000" },
++ [SchemeStatus] = { "#000000", "#000000", "#000000" },
+ };
+
+ /* tagging */
+diff -up ../dwm-6.2/drw.c ./drw.c
+--- ../dwm-6.2/drw.c 2019-02-02 13:55:28.000000000 +0100
++++ ./drw.c 2020-02-02 10:37:08.885745829 +0100
+_AT_@ -193,7 +193,7 @@ 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[])
+ {
+ if (!drw || !dest || !clrname)
+ return;
+_AT_@ -207,7 +207,7 @@ drw_clr_create(Drw *drw, Clr *dest, cons
+ /* 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[][8], size_t clrcount)
+ {
+ size_t i;
+ Clr *ret;
+diff -up ../dwm-6.2/drw.h ./drw.h
+--- ../dwm-6.2/drw.h 2019-02-02 13:55:28.000000000 +0100
++++ ./drw.h 2020-02-02 10:37:00.558746075 +0100
+_AT_@ -38,8 +38,8 @@ unsigned int drw_fontset_getwidth(Drw *d
+ 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[]);
++Clr *drw_scm_create(Drw *drw, char clrnames[][8], size_t clrcount);
+
+ /* Cursor abstraction */
+ Cur *drw_cur_create(Drw *drw, int shape);
+diff -up ../dwm-6.2/dwm.c ./dwm.c
+--- ../dwm-6.2/dwm.c 2019-02-02 13:55:28.000000000 +0100
++++ ./dwm.c 2020-02-02 10:57:40.659581991 +0100
+_AT_@ -59,7 +59,7 @@
+
+ /* enums */
+ enum { CurNormal, CurResize, CurMove, CurLast }; /* cursor */
+-enum { SchemeNorm, SchemeSel }; /* color schemes */
++enum { SchemeNorm, SchemeSel, SchemeTagsNorm, SchemeTagsSel, SchemeTitleNorm, SchemeTitleSel, SchemeStatus }; /* color schemes */
+ enum { NetSupported, NetWMName, NetWMState, NetWMCheck,
+ NetWMFullscreen, NetActiveWindow, NetWMWindowType,
+ NetWMWindowTypeDialog, NetClientList, NetLast }; /* EWMH atoms */
+_AT_@ -201,6 +201,8 @@ static void setfocus(Client *c);
+ static void setfullscreen(Client *c, int fullscreen);
+ static void setlayout(const Arg *arg);
+ static void setmfact(const Arg *arg);
++static void get_vt_colors(void);
++static int get_luminance(char *rgb);
+ static void setup(void);
+ static void seturgent(Client *c, int urg);
+ static void showhide(Client *c);
+_AT_@ -703,7 +705,7 @@ drawbar(Monitor *m)
+
+ /* draw status first so it can be overdrawn by tags later */
+ if (m == selmon) { /* status is only drawn on selected monitor */
+- drw_setscheme(drw, scheme[SchemeNorm]);
++ drw_setscheme(drw, scheme[SchemeStatus]);
+ sw = TEXTW(stext) - lrpad + 2; /* 2px right padding */
+ drw_text(drw, m->ww - sw, 0, sw, bh, 0, stext, 0);
+ }
+_AT_@ -716,7 +718,7 @@ drawbar(Monitor *m)
+ x = 0;
+ for (i = 0; i < LENGTH(tags); i++) {
+ w = TEXTW(tags[i]);
+- drw_setscheme(drw, scheme[m->tagset[m->seltags] & 1 << i ? SchemeSel : SchemeNorm]);
++ drw_setscheme(drw, scheme[m->tagset[m->seltags] & 1 << i ? SchemeTagsSel : SchemeTagsNorm]);
+ drw_text(drw, x, 0, w, bh, lrpad / 2, tags[i], urg & 1 << i);
+ if (occ & 1 << i)
+ drw_rect(drw, x + boxs, boxs, boxw, boxw,
+_AT_@ -725,17 +727,17 @@ drawbar(Monitor *m)
+ x += w;
+ }
+ w = blw = TEXTW(m->ltsymbol);
+- drw_setscheme(drw, scheme[SchemeNorm]);
++ drw_setscheme(drw, scheme[SchemeTagsNorm]);
+ x = drw_text(drw, x, 0, w, bh, lrpad / 2, m->ltsymbol, 0);
+
+ if ((w = m->ww - sw - x) > bh) {
+ if (m->sel) {
+- drw_setscheme(drw, scheme[m == selmon ? SchemeSel : SchemeNorm]);
++ drw_setscheme(drw, scheme[m == selmon ? SchemeTitleSel : SchemeTitleNorm]);
+ drw_text(drw, x, 0, w, bh, lrpad / 2, m->sel->name, 0);
+ if (m->sel->isfloating)
+ drw_rect(drw, x + boxs, boxs, boxw, boxw, m->sel->isfixed, 0);
+ } else {
+- drw_setscheme(drw, scheme[SchemeNorm]);
++ drw_setscheme(drw, scheme[SchemeTitleNorm]);
+ drw_rect(drw, x, 0, w, bh, 1, 1);
+ }
+ }
+_AT_@ -1527,6 +1529,72 @@ setmfact(const Arg *arg)
+ }
+
+ void
++get_vt_colors(void)
++{
++ char *cfs[3] = {
++ "/sys/module/vt/parameters/default_red",
++ "/sys/module/vt/parameters/default_grn",
++ "/sys/module/vt/parameters/default_blu",
++ };
++ char vtcs[16][8];
++ char tk[] = ",";
++ char cl[64];
++ char *tp = NULL;
++ FILE *fp;
++ size_t r;
++ int i, c, n;
++
++ for (i = 0; i < 16; i++)
++ strcpy(vtcs[i], "#000000");
++
++ for (i = 0, r = 0; i < 3; i++) {
++ if ((fp = fopen(cfs[i], "r")) == NULL)
++ continue;
++ while ((cl[r] = fgetc(fp)) != EOF && cl[r] != '
')
++ r++;
++ cl[r] = '++ for (c = 0, tp = cl, n = 0; c < 16; c++, tp++) {
++ if ((r = strcspn(tp, tk)) == -1)
++ break;
++ for (n = 0; r && *tp >= 48 && *tp < 58; r--, tp++)
++ n = n * 10 - 48 + *tp;
++ vtcs[c][i * 2 + 1] = n / 16 < 10 ? n / 16 + 48 : n / 16 + 87;
++ vtcs[c][i * 2 + 2] = n % 16 < 10 ? n % 16 + 48 : n % 16 + 87;
++ }
++ fclose(fp);
++ }
++ for (i = 0; i < LENGTH(colors); i++) {
++ for (c = 0; c < 3; c++) {
++ n = color_ptrs[i][c];
++ if (n > -1 && strlen(colors[i][c]) >= strlen(vtcs[n]))
++ memcpy(colors[i][c], vtcs[n], 7);
++ }
++ }
++}
++
++int get_luminance(char *r)
++{
++ char *c = r;
++ int n[3] = {0};
++ int i = 0;
++
++ while (*c) {
++ if (*c >= 48 && *c < 58)
++ n[i / 2] = n[i / 2] * 16 - 48 + *c;
++ else if (*c >= 65 && *c < 71)
++ n[i / 2] = n[i / 2] * 16 - 55 + *c;
++ else if (*c >= 97 && *c < 103)
++ n[i / 2] = n[i / 2] * 16 - 87 + *c;
++ else
++ i--;
++ i++;
++ c++;
++ }
++
++ return (0.299 * n[0] + 0.587 * n[1] + 0.114 * n[2]) / 2.55;
++}
++
++void
+ setup(void)
+ {
+ int i;
+_AT_@ -1567,6 +1635,14 @@ setup(void)
+ cursor[CurResize] = drw_cur_create(drw, XC_sizing);
+ cursor[CurMove] = drw_cur_create(drw, XC_fleur);
+ /* init appearance */
++ get_vt_colors();
++ if (get_luminance(colors[SchemeTagsNorm][ColBg]) > 50) {
++ strcpy(colors[SchemeTitleNorm][ColBg], title_bg_light);
++ strcpy(colors[SchemeTitleSel][ColBg], title_bg_light);
++ } else {
++ strcpy(colors[SchemeTitleNorm][ColBg], title_bg_dark);
++ strcpy(colors[SchemeTitleSel][ColBg], title_bg_dark);
++ }
+ scheme = ecalloc(LENGTH(colors), sizeof(Clr *));
+ for (i = 0; i < LENGTH(colors); i++)
+ scheme[i] = drw_scm_create(drw, colors[i], 3);
+Only in ./: dwm-vtcolors-6.2.diff
+Only in ./: .git
+Only in ./: .gitignore
diff --git a/dwm.suckless.org/patches/vtcolors/index.md b/dwm.suckless.org/patches/vtcolors/index.md
new file mode 100644
index 00000000..f368af86
--- /dev/null
+++ b/dwm.suckless.org/patches/vtcolors/index.md
_AT_@ -0,0 +1,31 @@
+vtcolors
+========
+
+Description
+-----------
+This patch adds the ability for dwm to read colors from the linux virtual
+console: /sys/module/vt/parameters/default_{red,grn,blu}. In this way the
+colors you use in your regular tty is "mirrored" to dwm.
+
+Color mappings (16 colors) are handled in config.h using color_ptrs:
+
+ static const int color_ptrs[][3] = {
+ /* fg bg border */
+ [SchemeNorm] = { -1, -1, 5 },
+ [SchemeSel] = { -1, -1, 11 },
+ [SchemeTagsNorm] = { 2, 0, 0 },
+ [SchemeTagsSel] = { 6, 5, 5 },
+ [SchemeTitleNorm] = { 6, -1, -1 },
+ [SchemeTitleSel] = { 6, -1, -1 },
+ [SchemeStatus] = { 2, 0, 0 },
+ };
+
+Extra color specifications for tags, title and status are also added.
+
+Download
+--------
+* [dwm-vtcolors-6.2.diff](dwm-vtcolors-6.2.diff)
+
+Authors
+-------
+* Chris Noxz - <chris_AT_noxz.tech>
Received on Sun Feb 02 2020 - 10:25:44 CET