mouse.c

   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
  16 static void
  17 mmatch(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
  37 void
  38 mresize(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
  70 void
  71 mmove(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 }