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->r[RFloat].width = abs(x1 - x2);
 20	c->r[RFloat].height = abs(y1 - y2);
 21	c->r[RFloat].width -=
 22		(c->r[RFloat].width - c->size.base_width) % c->size.width_inc;
 23	c->r[RFloat].height -=
 24		(c->r[RFloat].height - c->size.base_height) % c->size.height_inc;
 25	if(c->size.min_width && c->r[RFloat].width < c->size.min_width)
 26		c->r[RFloat].width = c->size.min_width;
 27	if(c->size.min_height && c->r[RFloat].height < c->size.min_height)
 28		c->r[RFloat].height = c->size.min_height;
 29	if(c->size.max_width && c->r[RFloat].width > c->size.max_width)
 30		c->r[RFloat].width = c->size.max_width;
 31	if(c->size.max_height && c->r[RFloat].height > c->size.max_height)
 32		c->r[RFloat].height = c->size.max_height;
 33	c->r[RFloat].x = (x1 <= x2) ? x1 : x1 - c->r[RFloat].width;
 34	c->r[RFloat].y = (y1 <= y2) ? y1 : y1 - c->r[RFloat].height;
 35}
 36
 37void
 38mresize(Client *c)
 39{
 40	XEvent ev;
 41	int old_cx, old_cy;
 42
 43	old_cx = c->r[RFloat].x;
 44	old_cy = c->r[RFloat].y;
 45	if(XGrabPointer(dpy, c->win, 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,
 50			c->r[RFloat].width, c->r[RFloat].height);
 51	for(;;) {
 52		XMaskEvent(dpy, MouseMask, &ev);
 53		switch(ev.type) {
 54		default: break;
 55		case MotionNotify:
 56			XUngrabServer(dpy);
 57			mmatch(c, old_cx, old_cy, ev.xmotion.x, ev.xmotion.y);
 58			resize(c);
 59			XGrabServer(dpy);
 60			break;
 61		case ButtonRelease:
 62			XUngrabPointer(dpy, CurrentTime);
 63			return;
 64		}
 65	}
 66}
 67
 68void
 69mmove(Client *c)
 70{
 71	XEvent ev;
 72	int x1, y1, old_cx, old_cy, di;
 73	unsigned int dui;
 74	Window dummy;
 75
 76	old_cx = c->r[RFloat].x;
 77	old_cy = c->r[RFloat].y;
 78	if(XGrabPointer(dpy, c->win, False, MouseMask, GrabModeAsync, GrabModeAsync,
 79				None, cursor[CurMove], CurrentTime) != GrabSuccess)
 80		return;
 81	XQueryPointer(dpy, root, &dummy, &dummy, &x1, &y1, &di, &di, &dui);
 82	XGrabServer(dpy);
 83	for(;;) {
 84		XMaskEvent(dpy, MouseMask, &ev);
 85		switch (ev.type) {
 86		default: break;
 87		case MotionNotify:
 88			XUngrabServer(dpy);
 89			c->r[RFloat].x = old_cx + (ev.xmotion.x - x1);
 90			c->r[RFloat].y = old_cy + (ev.xmotion.y - y1);
 91			resize(c);
 92			XGrabServer(dpy);
 93			break;
 94		case ButtonRelease:
 95			XUngrabServer(dpy);
 96			XUngrabPointer(dpy, CurrentTime);
 97			return;
 98		}
 99	}
100}