added mouse-based resizals

7 files changed, 181 insertions, 19 deletions

diff --git a/Makefile b/Makefile
index e324e5b2..223f6f73 100644
--- a/Makefile
+++ b/Makefile
@@ -3,7 +3,7 @@
 
 include config.mk
 
-WMSRC = bar.c client.c cmd.c draw.c event.c key.c util.c wm.c
+WMSRC = bar.c client.c cmd.c draw.c event.c kb.c mouse.c util.c wm.c
 WMOBJ = ${WMSRC:.c=.o}
 MENSRC = menu.c draw.c util.c
 MENOBJ = ${MENSRC:.c=.o}
diff --git a/README b/README
index 4f46c8bd..bd60b689 100644
--- a/README
+++ b/README
@@ -5,14 +5,6 @@ gridwm is an extremly fast, small, and automatic X11 window manager.  It
 arranges all windows in a grid.
 
 
-Configuration
--------------
-You have to edit the source code for configuration, this WM is intended to
-provide sane defaults, if something doesn't fits your needs, edit config.h and
-maybe key.c. To change the status output edit that status variable definition
-in wm.c.
-
-
 Requirements
 ------------
 In order to build gridwm you need the Xlib header files.
@@ -46,6 +38,6 @@ This will start gridwm on display :1 of the host foo.bar.
 Configuration
 -------------
 The configuration of gridwm is done by customizing the config.h source file. To
-customize the key bindings edit key.c. To change the status output, edit the
+customize the key bindings edit kb.c. To change the status output, edit the
 status command definition in wm.c.
 
diff --git a/client.c b/client.c
index 9407f0a4..e05fdd73 100644
--- a/client.c
+++ b/client.c
@@ -10,6 +10,8 @@
 #include "util.h"
 #include "wm.h"
 
+#define CLIENT_MASK		(StructureNotifyMask | PropertyChangeMask | EnterWindowMask)
+
 void
 update_name(Client *c)
 {
@@ -70,7 +72,7 @@ manage(Window w, XWindowAttributes *wa)
 	c->r[RFloat].height = wa->height;
 	c->border = wa->border_width;
 	XSetWindowBorderWidth(dpy, c->win, 0);
-	XSelectInput(dpy, c->win, StructureNotifyMask | PropertyChangeMask | EnterWindowMask);
+	XSelectInput(dpy, c->win, CLIENT_MASK);
 	XGetTransientForHint(dpy, c->win, &c->trans);
 	if(!XGetWMNormalHints(dpy, c->win, &c->size, &msize) || !c->size.flags)
 		c->size.flags = PSize;
@@ -95,9 +97,34 @@ manage(Window w, XWindowAttributes *wa)
 	c->snext = stack;
 	stack = c;
 	XMapWindow(dpy, c->win);
+	XGrabButton(dpy, AnyButton, Mod1Mask, c->win, False, ButtonPressMask,
+			GrabModeAsync, GrabModeSync, None, None);
 	focus(c);
 }
 
+void
+resize(Client *c)
+{
+	XConfigureEvent e;
+
+	XMoveResizeWindow(dpy, c->win, c->r[RFloat].x, c->r[RFloat].y,
+			c->r[RFloat].width, c->r[RFloat].height);
+	e.type = ConfigureNotify;
+	e.event = c->win;
+	e.window = c->win;
+	e.x = c->r[RFloat].x;
+	e.y = c->r[RFloat].y;
+	e.width = c->r[RFloat].width;
+	e.height = c->r[RFloat].height;
+	e.border_width = c->border;
+	e.above = None;
+	e.override_redirect = False;
+	XSelectInput(dpy, c->win, CLIENT_MASK & ~StructureNotifyMask);
+	XSendEvent(dpy, c->win, False, StructureNotifyMask, (XEvent *)&e);
+	XSelectInput(dpy, c->win, CLIENT_MASK);
+	XFlush(dpy);
+}
+
 static int
 dummy_error_handler(Display *dpy, XErrorEvent *error)
 {
@@ -112,6 +139,7 @@ unmanage(Client *c)
 	XGrabServer(dpy);
 	XSetErrorHandler(dummy_error_handler);
 
+	XUngrabButton(dpy, AnyButton, AnyModifier, c->win);
 	XUnmapWindow(dpy, c->win);
 	XDestroyWindow(dpy, c->title);
 
@@ -126,7 +154,7 @@ unmanage(Client *c)
 	XFlush(dpy);
 	XSetErrorHandler(error_handler);
 	XUngrabServer(dpy);
-	flush_events(EnterWindowMask);
+	discard_events(EnterWindowMask);
 	if(stack)
 		focus(stack);
 }
diff --git a/event.c b/event.c
index 344a0cc9..ad4a16b8 100644
--- a/event.c
+++ b/event.c
@@ -12,6 +12,7 @@
 #include "wm.h"
 
 /* local functions */
+static void buttonpress(XEvent *e);
 static void configurerequest(XEvent *e);
 static void destroynotify(XEvent *e);
 static void enternotify(XEvent *e);
@@ -23,6 +24,7 @@ static void propertynotify(XEvent *e);
 static void unmapnotify(XEvent *e);
 
 void (*handler[LASTEvent]) (XEvent *) = {
+	[ButtonPress] = buttonpress,
 	[ConfigureRequest] = configurerequest,
 	[DestroyNotify] = destroynotify,
 	[EnterNotify] = enternotify,
@@ -36,7 +38,7 @@ void (*handler[LASTEvent]) (XEvent *) = {
 };
 
 unsigned int
-flush_events(long even_mask)
+discard_events(long even_mask)
 {
 	XEvent ev;
 	unsigned int n = 0;
@@ -45,15 +47,37 @@ flush_events(long even_mask)
 }
 
 static void
+buttonpress(XEvent *e)
+{
+	XButtonPressedEvent *ev = &e->xbutton;
+	Client *c;
+
+	if((c = getclient(ev->window))) {
+		switch(ev->button) {
+		default:
+			break;
+		case Button1:
+			mmove(c);
+			break;
+		case Button2:
+			XLowerWindow(dpy, c->win);
+			break;
+		case Button3:
+			mresize(c);
+			break;
+		}
+	}
+}
+
+static void
 configurerequest(XEvent *e)
 {
 	XConfigureRequestEvent *ev = &e->xconfigurerequest;
 	XWindowChanges wc;
 	Client *c;
 
-	c = getclient(ev->window);
 	ev->value_mask &= ~CWSibling;
-	if(c) {
+	if((c = getclient(ev->window))) {
 		if(ev->value_mask & CWX)
 			c->r[RFloat].x = ev->x;
 		if(ev->value_mask & CWY)
diff --git a/key.c b/kb.c
index 7caae15d..7caae15d 100644
--- a/key.c
+++ b/kb.c
diff --git a/mouse.c b/mouse.c
new file mode 100644
index 00000000..2b5d63b9
--- /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;
+		}
+	}
+}
diff --git a/wm.h b/wm.h
index 055ef62e..7ee6103d 100644
--- a/wm.h
+++ b/wm.h
@@ -11,6 +11,22 @@
 
 #define WM_PROTOCOL_DELWIN 1
 
+typedef struct Client Client;
+typedef struct Key Key;
+typedef enum Align Align;
+
+enum Align {
+	NORTH = 0x01,
+	EAST  = 0x02,
+	SOUTH = 0x04,
+	WEST  = 0x08,
+	NEAST = NORTH | EAST,
+	NWEST = NORTH | WEST,
+	SEAST = SOUTH | EAST,
+	SWEST = SOUTH | WEST,
+	CENTER = NEAST | SWEST
+};
+
 /* atoms */
 enum { WMProtocols, WMDelete, WMLast };
 enum { NetSupported, NetWMName, NetLast };
@@ -21,9 +37,6 @@ enum { CurNormal, CurResize, CurMove, CurInput, CurLast };
 /* rects */
 enum { RFloat, RGrid, RLast };
 
-typedef struct Client Client;
-typedef struct Key Key;
-
 struct Client {
 	char name[256];
 	char tag[256];
@@ -75,14 +88,19 @@ extern Client *getclient(Window w);
 extern void focus(Client *c);
 extern void update_name(Client *c);
 extern void draw_client(Client *c);
+extern void resize(Client *c);
 
 /* event.c */
-extern unsigned int flush_events(long even_mask);
+extern unsigned int discard_events(long even_mask);
 
 /* key.c */
 extern void update_keys();
 extern void keypress(XEvent *e);
 
+/* mouse.c */
+extern void mresize(Client *c);
+extern void mmove(Client *c);
+
 /* wm.c */
 extern int error_handler(Display *dpy, XErrorEvent *error);
 extern void send_message(Window w, Atom a, long value);