1/*
  2 * (C)opyright MMVI Anselm R. Garbe <garbeam at gmail dot com>
  3 * (C)opyright MMVI Kris Maglione <fbsdaemon@gmail.com>
  4 * See LICENSE file for license details.
  5 */
  6
  7#include <stdlib.h>
  8#include <string.h>
  9#include <unistd.h>
 10
 11#include "wm.h"
 12
 13#define ButtonMask      (ButtonPressMask | ButtonReleaseMask)
 14#define MouseMask       (ButtonMask | PointerMotionMask)
 15
 16static void
 17mmatch(Client *c, int x1, int y1, int x2, int y2)
 18{
 19	c->w = abs(x1 - x2);
 20	c->h = abs(y1 - y2);
 21	if(c->incw)
 22		c->w -= (c->w - c->basew) % c->incw;
 23	if(c->inch)
 24		c->h -= (c->h - c->baseh) % c->inch;
 25	if(c->minw && c->w < c->minw)
 26		c->w = c->minw;
 27	if(c->minh && c->h < c->minh)
 28		c->h = c->minh;
 29	if(c->maxw && c->w > c->maxw)
 30		c->w = c->maxw;
 31	if(c->maxh && c->h > c->maxh)
 32		c->h = c->maxh;
 33	c->x = (x1 <= x2) ? x1 : x1 - c->w;
 34	c->y = (y1 <= y2) ? y1 : y1 - c->h;
 35}
 36
 37void
 38mresize(Client *c)
 39{
 40	XEvent ev;
 41	int old_cx, old_cy;
 42
 43	old_cx = c->x;
 44	old_cy = c->y;
 45	if(XGrabPointer(dpy, root, False, MouseMask, GrabModeAsync, GrabModeAsync,
 46				None, cursor[CurResize], CurrentTime) != GrabSuccess)
 47		return;
 48	XGrabServer(dpy);
 49	XWarpPointer(dpy, None, c->win, 0, 0, 0, 0, c->w, c->h);
 50	for(;;) {
 51		XMaskEvent(dpy, MouseMask, &ev);
 52		switch(ev.type) {
 53		default: break;
 54		case MotionNotify:
 55			XUngrabServer(dpy);
 56			mmatch(c, old_cx, old_cy, ev.xmotion.x, ev.xmotion.y);
 57			XResizeWindow(dpy, c->win, c->w, c->h);
 58			XGrabServer(dpy);
 59			break;
 60		case ButtonRelease:
 61			resize(c);
 62			XUngrabServer(dpy);
 63			XUngrabPointer(dpy, CurrentTime);
 64			return;
 65		}
 66	}
 67}
 68
 69void
 70mmove(Client *c)
 71{
 72	XEvent ev;
 73	int x1, y1, old_cx, old_cy, di;
 74	unsigned int dui;
 75	Window dummy;
 76
 77	old_cx = c->x;
 78	old_cy = c->y;
 79	if(XGrabPointer(dpy, root, False, MouseMask, GrabModeAsync, GrabModeAsync,
 80				None, cursor[CurMove], CurrentTime) != GrabSuccess)
 81		return;
 82	XQueryPointer(dpy, root, &dummy, &dummy, &x1, &y1, &di, &di, &dui);
 83	XGrabServer(dpy);
 84	for(;;) {
 85		XMaskEvent(dpy, MouseMask, &ev);
 86		switch (ev.type) {
 87		default: break;
 88		case MotionNotify:
 89			XUngrabServer(dpy);
 90			c->x = old_cx + (ev.xmotion.x - x1);
 91			c->y = old_cy + (ev.xmotion.y - y1);
 92			XMoveResizeWindow(dpy, c->win, c->x, c->y, c->w, c->h);
 93			XGrabServer(dpy);
 94			break;
 95		case ButtonRelease:
 96			resize(c);
 97			XUngrabServer(dpy);
 98			XUngrabPointer(dpy, CurrentTime);
 99			return;
100		}
101	}
102}