From: Dana Jansens Date: Fri, 21 Mar 2003 08:37:22 +0000 (+0000) Subject: snap window-to-window X-Git-Url: https://git.brokenzipper.com/gitweb?a=commitdiff_plain;h=39046996883776299e03da9c02eae097e0fc9b38;p=chaz%2Fopenbox snap window-to-window --- diff --git a/openbox/snap.c b/openbox/snap.c index bd9b3d50..02bb5bb5 100644 --- a/openbox/snap.c +++ b/openbox/snap.c @@ -4,6 +4,8 @@ #include "screen.h" static int resistance = 10; +static gboolean edge_resistance = TRUE; /* window-to-edge */ +static gboolean window_resistance = TRUE; /* window-to-window */ void snap_move(Client *c, int *x, int *y, int w, int h) { @@ -12,6 +14,9 @@ void snap_move(Client *c, int *x, int *y, int w, int h) int l, t, r, b; /* requested edges */ int al, at, ar, ab; /* screen area edges */ int cl, ct, cr, cb; /* current edges */ + gboolean snapx = FALSE, snapy = FALSE; + + if (!edge_resistance) return; /* add the frame to the dimensions */ l = *x; @@ -25,9 +30,33 @@ void snap_move(Client *c, int *x, int *y, int w, int h) cb = ct + c->frame->area.height - 1; /* snap to other clients */ - for (it = stacking_list; it != NULL; it = it->next) { - /* XXX foo */ - } + if (window_resistance) + for (it = stacking_list; it != NULL; it = it->next) { + Client *target; + int tl, tt, tr, tb; /* 1 past the target's edges on each side */ + + target = it->data; + + tl = target->frame->area.x - 1; + tt = target->frame->area.y - 1; + tr = tl + target->frame->area.width + 1; + tb = tt + target->frame->area.height + 1; + + /* snapx and snapy ensure that the window snaps to the top-most + window edge available, without going all the way from + bottom-to-top in the stacking list + */ + if (!snapx && cl >= tr && l < tr && l >= tr - resistance) + *x = tr, snapx = TRUE; + else if (!snapx && cr <= tl && r > tl && r <= tl + resistance) + *x = tl - w + 1, snapx = TRUE; + else if (!snapy && ct >= tb && t < tb && t >= tb - resistance) + *y = tb, snapy = TRUE; + else if (!snapy && cb <= tt && b > tt && b <= tt + resistance) + *y = tt - h + 1, snapy = TRUE; + + if (snapx && snapy) break; + } /* get the screen boundaries */ area = screen_area(c->desktop);