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->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
  37 void
  38 mresize(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         XWarpPointer(dpy, None, c->win, 0, 0, 0, 0, c->w, c->h);
  49         for(;;) {
  50                 XMaskEvent(dpy, MouseMask | ExposureMask, &ev);
  51                 switch(ev.type) {
  52                 default: break;
  53                 case Expose:
  54                         handler[Expose](&ev);
  55                         break;
  56                 case MotionNotify:
  57                         XFlush(dpy);
  58                         mmatch(c, old_cx, old_cy, ev.xmotion.x, ev.xmotion.y);
  59                         XResizeWindow(dpy, c->win, c->w, c->h);
  60                         break;
  61                 case ButtonRelease:
  62                         resize(c);
  63                         XUngrabPointer(dpy, CurrentTime);
  64                         return;
  65                 }
  66         }
  67 }
  68
  69 void
  70 mmove(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         for(;;) {
  84                 XMaskEvent(dpy, MouseMask | ExposureMask, &ev);
  85                 switch (ev.type) {
  86                 default: break;
  87                 case Expose:
  88                         handler[Expose](&ev);
  89                         break;
  90                 case MotionNotify:
  91                         XFlush(dpy);
  92                         c->x = old_cx + (ev.xmotion.x - x1);
  93                         c->y = old_cy + (ev.xmotion.y - y1);
  94                         XMoveResizeWindow(dpy, c->win, c->x, c->y, c->w, c->h);
  95                         break;
  96                 case ButtonRelease:
  97                         resize(c);
  98                         XUngrabPointer(dpy, CurrentTime);
  99                         return;
 100                 }
 101         }
 102 }