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, 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,
 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			XResizeWindow(dpy, c->win, c->r[RFloat].width, c->r[RFloat].height);
 59			XGrabServer(dpy);
 60			break;
 61		case ButtonRelease:
 62			resize(c);
 63			XUngrabServer(dpy);
 64			XUngrabPointer(dpy, CurrentTime);
 65			return;
 66		}
 67	}
 68}
 69
 70void
 71mmove(Client *c)
 72{
 73	XEvent ev;
 74	int x1, y1, old_cx, old_cy, di;
 75	unsigned int dui;
 76	Window dummy;
 77
 78	old_cx = c->r[RFloat].x;
 79	old_cy = c->r[RFloat].y;
 80	if(XGrabPointer(dpy, root, False, MouseMask, GrabModeAsync, GrabModeAsync,
 81				None, cursor[CurMove], CurrentTime) != GrabSuccess)
 82		return;
 83	XQueryPointer(dpy, root, &dummy, &dummy, &x1, &y1, &di, &di, &dui);
 84	XGrabServer(dpy);
 85	for(;;) {
 86		XMaskEvent(dpy, MouseMask, &ev);
 87		switch (ev.type) {
 88		default: break;
 89		case MotionNotify:
 90			XUngrabServer(dpy);
 91			c->r[RFloat].x = old_cx + (ev.xmotion.x - x1);
 92			c->r[RFloat].y = old_cy + (ev.xmotion.y - y1);
 93			XMoveResizeWindow(dpy, c->win, c->r[RFloat].x, c->r[RFloat].y,
 94					c->r[RFloat].width, c->r[RFloat].height);
 95			XGrabServer(dpy);
 96			break;
 97		case ButtonRelease:
 98			resize(c);
 99			XUngrabServer(dpy);
100			XUngrabPointer(dpy, CurrentTime);
101			return;
102		}
103	}
104}