mouse5 support

[mike at vinge.mine.nu]

I noticed the recent mouse4 checkin, and i have a 5th mouse button, so i
decided to copy the patch for a 5th mouse- this patch works, although
i'm not totally sure if it's correct, since i just copied the design of
the other one, mostly
-- 
To smash a single atom, all mankind was intent.
Now any day the atom may return the compliment.
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Index: src/client/keys.c
===================================================================
diff -u -r1.3 keys.c
--- src/client/keys.c	2002/02/09 20:52:34	1.3
+++ src/client/keys.c	2002/02/11 00:57:48
@@ -89,6 +89,7 @@
 	{"MOUSE2", K_MOUSE2},
 	{"MOUSE3", K_MOUSE3},
 	{"MOUSE4", K_MOUSE4},
+	{"MOUSE5", K_MOUSE5},
 
 
 	{"JOY1", K_JOY1},
Index: src/client/keys.h
===================================================================
diff -u -r1.3 keys.h
--- src/client/keys.h	2002/02/09 20:52:34	1.3
+++ src/client/keys.h	2002/02/11 00:57:49
@@ -80,7 +80,8 @@
 	K_MOUSE2		= 201,
 	K_MOUSE3		= 202,
 	K_MOUSE4		= 241,
-
+	K_MOUSE5		= 242,
+	
 //
 // joystick buttons
 //
Index: src/client/menu.c
===================================================================
diff -u -r1.5 menu.c
--- src/client/menu.c	2002/02/09 20:52:34	1.5
+++ src/client/menu.c	2002/02/11 00:57:50
@@ -208,6 +208,7 @@
 	case K_MOUSE2:
 	case K_MOUSE3:
 	case K_MOUSE4:
+	case K_MOUSE5:
 	case K_JOY1:
 	case K_JOY2:
 	case K_JOY3:
Index: src/linux/rw_sdl.c
===================================================================
diff -u -r1.8 rw_sdl.c
--- src/linux/rw_sdl.c	2002/02/09 20:52:34	1.8
+++ src/linux/rw_sdl.c	2002/02/11 00:57:51
@@ -173,6 +173,12 @@
 	if ( !(mouse_buttonstate & (1<<3)) && (mouse_oldbuttonstate & (1<<3)) )
 		in_state->Key_Event_fp (K_MOUSE4, false);
 
+	if ( (mouse_buttonstate & (1<<4)) && !(mouse_oldbuttonstate & (1<<4)) )
+		in_state->Key_Event_fp (K_MOUSE5, true);
+
+	if ( !(mouse_buttonstate & (1<<4)) && (mouse_oldbuttonstate & (1<<4)) )
+		in_state->Key_Event_fp (K_MOUSE5, false);
+
 	mouse_oldbuttonstate = mouse_buttonstate;
 }
 
@@ -396,6 +402,13 @@
 			keyq[keyq_head].key = K_MOUSE4;
 			keyq[keyq_head].down = false;
 			keyq_head = (keyq_head + 1) & 63;
+		} else if (event->button.button == 7) {
+			keyq[keyq_head].key = K_MOUSE5;
+			keyq[keyq_head].down = true;
+			keyq_head = (keyq_head + 1) & 63;
+			keyq[keyq_head].key = K_MOUSE5;
+			keyq[keyq_head].down = false;
+			keyq_head = (keyq_head + 1) & 63;
 		}
 		break;
 	case SDL_MOUSEBUTTONUP:
@@ -877,6 +890,8 @@
 		mouse_buttonstate |= (1 << 2);
 	if (SDL_BUTTON(6) & bstate)
 		mouse_buttonstate |= (1 << 3);
+	if (SDL_BUTTON(7) & bstate)
+		mouse_buttonstate |= (1 << 4);
 
 	
 	if (old_windowed_mouse != _windowed_mouse->value) {
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