Implementing xzoomreset.

Thanks mvdan@mvdan.cc for proposing this.

2 files changed, 25 insertions, 1 deletions

diff --git a/config.def.h b/config.def.h
index cc16f97..0a3c3e0 100644
--- a/config.def.h
+++ b/config.def.h
@@ -116,6 +116,7 @@ static Shortcut shortcuts[] = {
         { XK_ANY_MOD,           XK_Print,       printsel,       {.i =  0} },
         { MODKEY|ShiftMask,     XK_Prior,       xzoom,          {.i = +1} },
         { MODKEY|ShiftMask,     XK_Next,        xzoom,          {.i = -1} },
+        { MODKEY|ShiftMask,     XK_Home,        xzoomreset,     {.i =  0}  },
         { ShiftMask,            XK_Insert,      selpaste,       {.i =  0} },
         { MODKEY|ShiftMask,     XK_Insert,      clippaste,      {.i =  0} },
         { MODKEY,               XK_Num_Lock,    numlock,        {.i =  0} },
diff --git a/st.c b/st.c
index 83293f4..2b4d52c 100644
--- a/st.c
+++ b/st.c
@@ -317,6 +317,8 @@ static void clippaste(const Arg *);
 static void numlock(const Arg *);
 static void selpaste(const Arg *);
 static void xzoom(const Arg *);
+static void xzoomabs(const Arg *);
+static void xzoomreset(const Arg *);
 static void printsel(const Arg *);
 static void printscreen(const Arg *) ;
 static void toggleprinter(const Arg *);
@@ -503,6 +505,7 @@ static int oldbutton = 3; /* button event on startup: 3 = release */
 
 static char *usedfont = NULL;
 static double usedfontsize = 0;
+static double defaultfontsize = 0;
 
 static uchar utfbyte[UTF_SIZ + 1] = {0x80,    0, 0xC0, 0xE0, 0xF0};
 static uchar utfmask[UTF_SIZ + 1] = {0xC0, 0x80, 0xE0, 0xF0, 0xF8};
@@ -2993,6 +2996,7 @@ xloadfonts(char *fontstr, double fontsize) {
                         FcPatternAddDouble(pattern, FC_PIXEL_SIZE, 12);
                         usedfontsize = 12;
                 }
+                defaultfontsize = usedfontsize;
         }
 
         FcConfigSubstitute(0, pattern, FcMatchPattern);
@@ -3005,6 +3009,8 @@ xloadfonts(char *fontstr, double fontsize) {
                 FcPatternGetDouble(dc.font.match->pattern,
                                    FC_PIXEL_SIZE, 0, &fontval);
                 usedfontsize = fontval;
+                if(fontsize == 0)
+                        defaultfontsize = fontval;
         }
 
         /* Setting character width and height. */
@@ -3058,16 +3064,33 @@ xunloadfonts(void) {
         xunloadfont(&dc.ibfont);
 }
 
+
 void
 xzoom(const Arg *arg) {
+        Arg larg;
+        larg.i = usedfontsize + arg->i;
+        xzoomabs(&larg);
+}
+
+void
+xzoomabs(const Arg *arg) {
         xunloadfonts();
-        xloadfonts(usedfont, usedfontsize + arg->i);
+        xloadfonts(usedfont, arg->i);
         cresize(0, 0);
         redraw(0);
         xhints();
 }
 
 void
+xzoomreset(const Arg *arg) {
+        Arg larg;
+        if(defaultfontsize > 0) {
+                larg.i = defaultfontsize;
+                xzoomabs(&larg);
+        }
+}
+
+void
 xinit(void) {
         XGCValues gcvalues;
         Cursor cursor;