st

fork of suckless's simple terminal
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commit d85f7319a2c0d0bc53c1e0be6539284823fe7389
parent 12435817723b44189bd412937403c401e5bbc136
Author: Devin J. Pohly <djpohly@djpohly.com>
Date:   Mon, 25 Oct 2010 15:26:47 -0400

copy old pixmap to new on resize

Diffstat:
Mst.c | 16+++++++++++++++-
1 file changed, 15 insertions(+), 1 deletion(-)
diff --git a/st.c b/st.c
@@ -1260,10 +1260,24 @@ tresize(int col, int row) {
 
 void
 xresize(int col, int row) {
+    Pixmap newbuf;
+    int oldw, oldh;
+
+    oldw = xw.bufw;
+    oldh = xw.bufh;
     xw.bufw = MAX(1, col * xw.cw);
     xw.bufh = MAX(1, row * xw.ch);
+    newbuf = XCreatePixmap(xw.dis, xw.win, xw.bufw, xw.bufh, XDefaultDepth(xw.dis, xw.scr));
+    XCopyArea(xw.dis, xw.buf, newbuf, dc.gc, 0, 0, xw.bufw, xw.bufh, 0, 0);
     XFreePixmap(xw.dis, xw.buf);
-    xw.buf = XCreatePixmap(xw.dis, xw.win, xw.bufw, xw.bufh, XDefaultDepth(xw.dis, xw.scr));
+    XSetForeground(xw.dis, dc.gc, dc.col[DefaultBG]);
+    if(xw.bufw > oldw)
+        XFillRectangle(xw.dis, newbuf, dc.gc, oldw, 0,
+                xw.bufw-oldw, MIN(xw.bufh, oldh));
+    if(xw.bufh > oldh)
+        XFillRectangle(xw.dis, newbuf, dc.gc, 0, oldh,
+                xw.bufw, xw.bufh-oldh);
+    xw.buf = newbuf;
 }
 
 void