Add border to focused window

[wmpus] / sys-x11.c

diff --git a/sys-x11.c b/sys-x11.c
index 69b5bcbd97edc502c0ce010b43a053e160f821d8..052b0a8fa7a150c59e117c3d2a35384f061ce8da 100644 (file)
--- a/sys-x11.c
+++ b/sys-x11.c
@@ -11,6 +11,8 @@
 #include "sys.h"
 #include "wm.h"
 
+#define BORDER 2
+
 /* Internal structures */
 struct win_sys {
        Window   xid;
@@ -29,10 +31,15 @@ typedef enum {
        wm_proto, wm_focus, net_strut, natoms
 } atom_t;
 
+typedef enum {
+       clr_focus, clr_unfocus, clr_urgent, ncolors
+} color_t;
+
 /* Global data */
 static void *win_cache = NULL;
 static Atom atoms[natoms];
 static int (*xerrorxlib)(Display *, XErrorEvent *);
+static unsigned long colors[ncolors];
 
 /* Conversion functions */
 static keymap_t key2sym[] = {
@@ -229,6 +236,16 @@ static int win_viewable(win_t *win)
                return True;
 }
 
+/* Drawing functions */
+unsigned long get_color(Display *dpy, const char *name)
+{
+       XColor color;
+       int screen = DefaultScreen(dpy);
+       Colormap cmap = DefaultColormap(dpy, screen);
+       XAllocNamedColor(dpy, cmap, name, &color, &color);
+       return color.pixel;
+}
+
 /* Callbacks */
 static void process_event(int type, XEvent *ev, win_t *root)
 {
@@ -360,10 +377,11 @@ static int xerror(Display *dpy, XErrorEvent *err)
 void sys_move(win_t *win, int x, int y, int w, int h)
 {
        //printf("sys_move: %p - %d,%d  %dx%d\n", win, x, y, w, h);
-       win->x = MAX(x,0); win->y = MAX(y,0);
-       win->w = MAX(w,1); win->h = MAX(h,1);
-       XMoveResizeWindow(win->sys->dpy, win->sys->xid,
-                       win->x, win->y, win->w, win->h);
+       int b = 2*BORDER;
+       win->x = MAX(x,0);   win->y = MAX(y,0);
+       win->w = MAX(w,1+b); win->h = MAX(h,1+b);
+       w      = MAX(w-b,1); h      = MAX(h-b,1);
+       XMoveResizeWindow(win->sys->dpy, win->sys->xid, x, y, w, h);
 
        /* Flush events, so moving window doesn't cuase re-focus
         * There's probably a better way to do this */
@@ -382,6 +400,16 @@ void sys_raise(win_t *win)
 void sys_focus(win_t *win)
 {
        printf("sys_focus: %p\n", win);
+
+       /* Set border on focused window */
+       static win_t *last = NULL;
+       if (last)
+               XSetWindowBorder(last->sys->dpy, last->sys->xid, colors[clr_unfocus]);
+       XSetWindowBorder(win->sys->dpy, win->sys->xid, colors[clr_focus]);
+       XSetWindowBorderWidth(win->sys->dpy, win->sys->xid, BORDER);
+       last = win;
+
+       /* Set actual focus */
        XSetInputFocus(win->sys->dpy, win->sys->xid,
                        RevertToPointerRoot, CurrentTime);
        XSendEvent(win->sys->dpy, win->sys->xid, False, NoEventMask, &(XEvent){
@@ -432,6 +460,10 @@ win_t *sys_init(void)
        atoms[wm_proto]  = XInternAtom(dpy, "WM_PROTOCOLS",  False);
        atoms[wm_focus]  = XInternAtom(dpy, "WM_TAKE_FOCUS", False);
        atoms[net_strut] = XInternAtom(dpy, "_NET_WM_STRUT", False);
+       colors[clr_focus]   = get_color(dpy, "#a0a0ff");
+       colors[clr_unfocus] = get_color(dpy, "#101066");
+       colors[clr_urgent]  = get_color(dpy, "#ff0000");
+       printf("colors = #%06lx #%06lx #%06lx\n", colors[0], colors[1], colors[2]);
        XSelectInput(dpy, xid, SubstructureRedirectMask|SubstructureNotifyMask);
        XSetInputFocus(dpy, None, RevertToNone, CurrentTime);
        xerrorxlib = XSetErrorHandler(xerror);