added mouse-based resizals

1 files changed, 100 insertions, 0 deletions

diff --git a/mouse.c b/mouse.c
new file mode 100644
index 0000000..2b5d63b
--- /dev/null
+++ b/mouse.c
@@ -0,0 +1,100 @@
+/*
+ * (C)opyright MMVI Anselm R. Garbe <garbeam at gmail dot com>
+ * (C)opyright MMVI Kris Maglione <fbsdaemon@gmail.com>
+ * See LICENSE file for license details.
+ */
+
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+#include "wm.h"
+
+#define ButtonMask      (ButtonPressMask | ButtonReleaseMask)
+#define MouseMask       (ButtonMask | PointerMotionMask)
+
+static void
+mmatch(Client *c, int x1, int y1, int x2, int y2)
+{
+	c->r[RFloat].width = abs(x1 - x2);
+	c->r[RFloat].height = abs(y1 - y2);
+	c->r[RFloat].width -=
+		(c->r[RFloat].width - c->size.base_width) % c->size.width_inc;
+	c->r[RFloat].height -=
+		(c->r[RFloat].height - c->size.base_height) % c->size.height_inc;
+	if(c->size.min_width && c->r[RFloat].width < c->size.min_width)
+		c->r[RFloat].width = c->size.min_width;
+	if(c->size.min_height && c->r[RFloat].height < c->size.min_height)
+		c->r[RFloat].height = c->size.min_height;
+	if(c->size.max_width && c->r[RFloat].width > c->size.max_width)
+		c->r[RFloat].width = c->size.max_width;
+	if(c->size.max_height && c->r[RFloat].height > c->size.max_height)
+		c->r[RFloat].height = c->size.max_height;
+	c->r[RFloat].x = (x1 <= x2) ? x1 : x1 - c->r[RFloat].width;
+	c->r[RFloat].y = (y1 <= y2) ? y1 : y1 - c->r[RFloat].height;
+}
+
+void
+mresize(Client *c)
+{
+	XEvent ev;
+	int old_cx, old_cy;
+
+	old_cx = c->r[RFloat].x;
+	old_cy = c->r[RFloat].y;
+	if(XGrabPointer(dpy, c->win, False, MouseMask, GrabModeAsync, GrabModeAsync,
+				None, cursor[CurResize], CurrentTime) != GrabSuccess)
+		return;
+	XGrabServer(dpy);
+	XWarpPointer(dpy, None, c->win, 0, 0, 0, 0,
+			c->r[RFloat].width, c->r[RFloat].height);
+	for(;;) {
+		XMaskEvent(dpy, MouseMask, &ev);
+		switch(ev.type) {
+		default: break;
+		case MotionNotify:
+			XUngrabServer(dpy);
+			mmatch(c, old_cx, old_cy, ev.xmotion.x, ev.xmotion.y);
+			resize(c);
+			XGrabServer(dpy);
+			break;
+		case ButtonRelease:
+			XUngrabPointer(dpy, CurrentTime);
+			return;
+		}
+	}
+}
+
+void
+mmove(Client *c)
+{
+	XEvent ev;
+	int x1, y1, old_cx, old_cy, di;
+	unsigned int dui;
+	Window dummy;
+
+	old_cx = c->r[RFloat].x;
+	old_cy = c->r[RFloat].y;
+	if(XGrabPointer(dpy, c->win, False, MouseMask, GrabModeAsync, GrabModeAsync,
+				None, cursor[CurMove], CurrentTime) != GrabSuccess)
+		return;
+	XQueryPointer(dpy, root, &dummy, &dummy, &x1, &y1, &di, &di, &dui);
+	XGrabServer(dpy);
+	for(;;) {
+		XMaskEvent(dpy, MouseMask, &ev);
+		switch (ev.type) {
+		default: break;
+		case MotionNotify:
+			XUngrabServer(dpy);
+			c->r[RFloat].x = old_cx + (ev.xmotion.x - x1);
+			c->r[RFloat].y = old_cy + (ev.xmotion.y - y1);
+			resize(c);
+			XGrabServer(dpy);
+			break;
+		case ButtonRelease:
+			XUngrabServer(dpy);
+			XUngrabPointer(dpy, CurrentTime);
+			return;
+		}
+	}
+}