st

fork of suckless's simple terminal
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commit 2cb539142b97bd2a5c1a322fd7c063c6afb67c9b
parent 99de33395126fc9708f442d155e737b9182f6ef4
Author: Quentin Rameau <quinq@fifth.space>
Date:   Sun,  2 Feb 2020 15:38:08 +0100

x: do not instantiate a new nested list on each cursor move

Diffstat:
Mx.c | 16++++++++++++----
1 file changed, 12 insertions(+), 4 deletions(-)
diff --git a/x.c b/x.c
@@ -97,6 +97,8 @@ typedef struct {
     struct {
         XIM xim;
         XIC xic;
+        XPoint spot;
+        XVaNestedList spotlist;
     } ime;
     Draw draw;
     Visual *vis;
@@ -1042,6 +1044,9 @@ ximopen(Display *dpy)
                        XNClientWindow, xw.win, XNFocusWindow, xw.win, NULL);
     if (xw.xic == NULL)
         die("XCreateIC failed. Could not obtain input method.\n");
+
+    xw.ime.spotlist = XVaCreateNestedList(0, XNSpotLocation, &xw.ime.spot,
+                                          NULL);
 }
 
 void
@@ -1058,6 +1063,7 @@ ximdestroy(XIM xim, XPointer client, XPointer call)
     xw.ime.xim = NULL;
     XRegisterIMInstantiateCallback(xw.dpy, NULL, NULL, NULL,
                     ximinstantiate, NULL);
+    XFree(xw.ime.spotlist);
 }
 
 void
@@ -1603,11 +1609,13 @@ xfinishdraw(void)
 void
 xximspot(int x, int y)
 {
-    XPoint spot = { borderpx + x * win.cw, borderpx + (y + 1) * win.ch };
-    XVaNestedList attr = XVaCreateNestedList(0, XNSpotLocation, &spot, NULL);
+    if (xw.ime.xic == NULL)
+        return;
+
+    xw.ime.spot.x = borderpx + x * win.cw;
+    xw.ime.spot.y = borderpx + (y + 1) * win.ch;
 
-    XSetICValues(xw.xic, XNPreeditAttributes, attr, NULL);
-    XFree(attr);
+    XSetICValues(xw.ime.xic, XNPreeditAttributes, xw.ime.spotlist, NULL);
 }
 
 void