move code into new xresize func, add early exit to resize

1 files changed, 14 insertions, 8 deletions

diff --git a/st.c b/st.c
index 147a6fa..594b0d3 100644
--- a/st.c
+++ b/st.c
@@ -190,6 +190,7 @@ static void xdrawcursor(void);
 static void xinit(void);
 static void xloadcols(void);
 static void xseturgency(int);
+static void xresize(int, int);
 
 static void expose(XEvent *);
 static void visibility(XEvent *);
@@ -1258,6 +1259,14 @@ tresize(int col, int row) {
 }
 
 void
+xresize(int col, int row) {
+        xw.bufw = MAX(1, col * xw.cw);
+        xw.bufh = MAX(1, row * xw.ch);
+        XFreePixmap(xw.dis, xw.buf);
+        xw.buf = XCreatePixmap(xw.dis, xw.win, xw.bufw, xw.bufh, XDefaultDepth(xw.dis, xw.scr));
+}
+
+void
 xloadcols(void) {
         int i, r, g, b;
         XColor color;
@@ -1615,16 +1624,13 @@ resize(XEvent *e) {
         
         xw.w = e->xconfigure.width;
         xw.h = e->xconfigure.height;
-        xw.bufw = xw.w - 2*BORDER;
-        xw.bufh = xw.h - 2*BORDER;
-        col = xw.bufw / xw.cw;
-        row = xw.bufh / xw.ch;
+        col = (xw.w - 2*BORDER) / xw.cw;
+        row = (xw.h - 2*BORDER) / xw.ch;
+        if(col == term.col && row == term.row)
+                return;
         tresize(col, row);
         ttyresize(col, row);
-        xw.bufh = MAX(1, xw.bufh);
-        xw.bufw = MAX(1, xw.bufw);
-        XFreePixmap(xw.dis, xw.buf);
-        xw.buf = XCreatePixmap(xw.dis, xw.win, xw.bufw, xw.bufh, XDefaultDepth(xw.dis, xw.scr));
+        xresize(col, row);
 }
 
 void