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draw.c is useless (belongs to main.c now)
[dwm.git] / client.c
index 16678d3..0251445 100644 (file)
--- a/client.c
+++ b/client.c
 /* static */
 
 static void
+attachstack(Client *c) {
+       c->snext = stack;
+       stack = c;
+}
+
+static void
 detachstack(Client *c) {
        Client **tc;
        for(tc=&stack; *tc && *tc != c; tc=&(*tc)->snext);
@@ -53,6 +59,21 @@ grabbuttons(Client *c, Bool focused) {
                                GrabModeAsync, GrabModeSync, None, None);
 }
 
+static Bool
+isprotodel(Client *c) {
+       int i, n;
+       Atom *protocols;
+       Bool ret = False;
+
+       if(XGetWMProtocols(dpy, c->win, &protocols, &n)) {
+               for(i = 0; !ret && i < n; i++)
+                       if(protocols[i] == wmatom[WMDelete])
+                               ret = True;
+               XFree(protocols);
+       }
+       return ret;
+}
+
 static void
 setclientstate(Client *c, long state) {
        long data[] = {state, None};
@@ -60,6 +81,24 @@ setclientstate(Client *c, long state) {
                        PropModeReplace, (unsigned char *)data, 2);
 }
 
+static void
+togglemax(Client *c) {
+       XEvent ev;
+
+       if(c->isfixed)
+               return;
+       if((c->ismax = !c->ismax)) {
+               c->rx = c->x;
+               c->ry = c->y;
+               c->rw = c->w;
+               c->rh = c->h;
+               resize(c, wax, way, waw - 2 * BORDERPX, wah - 2 * BORDERPX, True);
+       }
+       else
+               resize(c, c->rx, c->ry, c->rw, c->rh, True);
+       while(XCheckMaskEvent(dpy, EnterWindowMask, &ev));
+}
+
 static int
 xerrordummy(Display *dsply, XErrorEvent *ee) {
        return 0;
@@ -68,6 +107,14 @@ xerrordummy(Display *dsply, XErrorEvent *ee) {
 /* extern */
 
 void
+attach(Client *c) {
+       if(clients)
+               clients->prev = c;
+       c->next = clients;
+       clients = c;
+}
+
+void
 configure(Client *c) {
        XConfigureEvent ce;
 
@@ -86,6 +133,17 @@ configure(Client *c) {
 }
 
 void
+detach(Client *c) {
+       if(c->prev)
+               c->prev->next = c->next;
+       if(c->next)
+               c->next->prev = c->prev;
+       if(c == clients)
+               clients = c->next;
+       c->next = c->prev = NULL;
+}
+
+void
 focus(Client *c) {
        if(c && !isvisible(c))
                return;
@@ -95,8 +153,7 @@ focus(Client *c) {
        }
        if(c) {
                detachstack(c);
-               c->snext = stack;
-               stack = c;
+               attachstack(c);
                grabbuttons(c, True);
        }
        sel = c;
@@ -111,29 +168,36 @@ focus(Client *c) {
                XSetInputFocus(dpy, root, RevertToPointerRoot, CurrentTime);
 }
 
-Client *
-getclient(Window w) {
+void
+focusnext(Arg *arg) {
        Client *c;
-
-       for(c = clients; c; c = c->next)
-               if(c->win == w)
-                       return c;
-       return NULL;
+   
+       if(!sel)
+               return;
+       for(c = sel->next; c && !isvisible(c); c = c->next);
+       if(!c)
+               for(c = clients; c && !isvisible(c); c = c->next);
+       if(c) {
+               focus(c);
+               restack();
+       }
 }
 
-Bool
-isprotodel(Client *c) {
-       int i, n;
-       Atom *protocols;
-       Bool ret = False;
+void
+focusprev(Arg *arg) {
+       Client *c;
 
-       if(XGetWMProtocols(dpy, c->win, &protocols, &n)) {
-               for(i = 0; !ret && i < n; i++)
-                       if(protocols[i] == wmatom[WMDelete])
-                               ret = True;
-               XFree(protocols);
+       if(!sel)
+               return;
+       for(c = sel->prev; c && !isvisible(c); c = c->prev);
+       if(!c) {
+               for(c = clients; c && c->next; c = c->next);
+               for(; c && !isvisible(c); c = c->prev);
+       }
+       if(c) {
+               focus(c);
+               restack();
        }
-       return ret;
 }
 
 void
@@ -150,6 +214,7 @@ void
 manage(Window w, XWindowAttributes *wa) {
        Client *c, *t;
        Window trans;
+       XWindowChanges wc;
 
        c = emallocz(sizeof(Client));
        c->tags = emallocz(ntags * sizeof(Bool));
@@ -179,17 +244,18 @@ manage(Window w, XWindowAttributes *wa) {
                StructureNotifyMask | PropertyChangeMask | EnterWindowMask);
        XGetTransientForHint(dpy, c->win, &trans);
        grabbuttons(c, False);
+       wc.border_width = c->border;
+       XConfigureWindow(dpy, c->win, CWBorderWidth, &wc);
        XSetWindowBorder(dpy, c->win, dc.norm[ColBorder]);
+       configure(c); /* propagates border_width, if size doesn't change */
        updatetitle(c);
-       t = getclient(trans);
+       for(t = clients; t && t->win != c->win; t = t->next);
        settags(c, t);
        if(!c->isfloat)
                c->isfloat = (t != 0) || c->isfixed;
-       if(clients)
-               clients->prev = c;
-       c->next = clients;
-       c->snext = stack;
-       stack = clients = c;
+       attach(c);
+       attachstack(c);
+       c->isbanned = True;
        XMoveWindow(dpy, c->win, c->x + 2 * sw, c->y);
        XMapWindow(dpy, c->win);
        setclientstate(c, NormalState);
@@ -198,26 +264,32 @@ manage(Window w, XWindowAttributes *wa) {
        arrange();
 }
 
+Client *
+nexttiled(Client *c) {
+       for(; c && (c->isfloat || !isvisible(c)); c = c->next);
+       return c;
+}
+
 void
-resize(Client *c, Bool sizehints) {
+resize(Client *c, int x, int y, int w, int h, Bool sizehints) {
        float actual, dx, dy, max, min;
        XWindowChanges wc;
 
-       if(c->w <= 0 || c->h <= 0)
+       if(w <= 0 || h <= 0)
                return;
        if(sizehints) {
-               if(c->minw && c->w < c->minw)
-                       c->w = c->minw;
-               if(c->minh && c->h < c->minh)
-                       c->h = c->minh;
-               if(c->maxw && c->w > c->maxw)
-                       c->w = c->maxw;
-               if(c->maxh && c->h > c->maxh)
-                       c->h = c->maxh;
+               if(c->minw && w < c->minw)
+                       w = c->minw;
+               if(c->minh && h < c->minh)
+                       h = c->minh;
+               if(c->maxw && w > c->maxw)
+                       w = c->maxw;
+               if(c->maxh && h > c->maxh)
+                       h = c->maxh;
                /* inspired by algorithm from fluxbox */
-               if(c->minay > 0 && c->maxay && (c->h - c->baseh) > 0) {
-                       dx = (float)(c->w - c->basew);
-                       dy = (float)(c->h - c->baseh);
+               if(c->minay > 0 && c->maxay && (h - c->baseh) > 0) {
+                       dx = (float)(w - c->basew);
+                       dy = (float)(h - c->baseh);
                        min = (float)(c->minax) / (float)(c->minay);
                        max = (float)(c->maxax) / (float)(c->maxay);
                        actual = dx / dy;
@@ -225,43 +297,45 @@ resize(Client *c, Bool sizehints) {
                                if(actual < min) {
                                        dy = (dx * min + dy) / (min * min + 1);
                                        dx = dy * min;
-                                       c->w = (int)dx + c->basew;
-                                       c->h = (int)dy + c->baseh;
+                                       w = (int)dx + c->basew;
+                                       h = (int)dy + c->baseh;
                                }
                                else if(actual > max) {
                                        dy = (dx * min + dy) / (max * max + 1);
                                        dx = dy * min;
-                                       c->w = (int)dx + c->basew;
-                                       c->h = (int)dy + c->baseh;
+                                       w = (int)dx + c->basew;
+                                       h = (int)dy + c->baseh;
                                }
                        }
                }
                if(c->incw)
-                       c->w -= (c->w - c->basew) % c->incw;
+                       w -= (w - c->basew) % c->incw;
                if(c->inch)
-                       c->h -= (c->h - c->baseh) % c->inch;
+                       h -= (h - c->baseh) % c->inch;
        }
-       if(c->w == sw && c->h == sh)
+       if(w == sw && h == sh)
                c->border = 0;
        else
                c->border = BORDERPX;
        /* offscreen appearance fixes */
-       if(c->x > sw)
-               c->x = sw - c->w - 2 * c->border;
-       if(c->y > sh)
-               c->y = sh - c->h - 2 * c->border;
-       if(c->x + c->w + 2 * c->border < sx)
-               c->x = sx;
-       if(c->y + c->h + 2 * c->border < sy)
-               c->y = sy;
-       wc.x = c->x;
-       wc.y = c->y;
-       wc.width = c->w;
-       wc.height = c->h;
-       wc.border_width = c->border;
-       XConfigureWindow(dpy, c->win, CWX | CWY | CWWidth | CWHeight | CWBorderWidth, &wc);
-       configure(c);
-       XSync(dpy, False);
+       if(x > sw)
+               x = sw - w - 2 * c->border;
+       if(y > sh)
+               y = sh - h - 2 * c->border;
+       if(x + w + 2 * c->border < sx)
+               x = sx;
+       if(y + h + 2 * c->border < sy)
+               y = sy;
+       if(c->x != x || c->y != y || c->w != w || c->h != h) {
+               c->x = wc.x = x;
+               c->y = wc.y = y;
+               c->w = wc.width = w;
+               c->h = wc.height = h;
+               wc.border_width = c->border;
+               XConfigureWindow(dpy, c->win, CWX | CWY | CWWidth | CWHeight | CWBorderWidth, &wc);
+               configure(c);
+               XSync(dpy, False);
+       }
 }
 
 void
@@ -304,8 +378,8 @@ updatesizehints(Client *c) {
        }
        else
                c->minax = c->minay = c->maxax = c->maxay = 0;
-       c->isfixed = (c->maxw && c->minw && c->maxh && c->minh &&
-                               c->maxw == c->minw && c->maxh == c->minh);
+       c->isfixed = (c->maxw && c->minw && c->maxh && c->minh
+                       && c->maxw == c->minw && c->maxh == c->minh);
 }
 
 void
@@ -325,7 +399,7 @@ updatetitle(Client *c) {
                strncpy(c->name, (char *)name.value, sizeof c->name);
        else {
                if(XmbTextPropertyToTextList(dpy, &name, &list, &n) >= Success
-                               && n > 0 && *list)
+               && n > 0 && *list)
                {
                        strncpy(c->name, *list, sizeof c->name);
                        XFreeStringList(list);
@@ -356,3 +430,26 @@ unmanage(Client *c) {
        XUngrabServer(dpy);
        arrange();
 }
+
+void
+zoom(Arg *arg) {
+       unsigned int n;
+       Client *c;
+
+       if(!sel)
+               return;
+       if(sel->isfloat || (arrange == dofloat)) {
+               togglemax(sel);
+               return;
+       }
+       for(n = 0, c = nexttiled(clients); c; c = nexttiled(c->next))
+               n++;
+
+       if((c = sel) == nexttiled(clients))
+               if(!(c = nexttiled(c->next)))
+                       return;
+       detach(c);
+       attach(c);
+       focus(c);
+       arrange();
+}