Make window stacking level changes to match GNUstep.

ChangeLog

@@ -13,6 +13,8 @@ Changes since version 0.63.1:
 - integrated the 'no polling' patch from Jim Knoble <jmknoble@jmknoble.cx>.
 - new wsetfont script (Anton Zinoviev <zinoviev@debian.org>)
 - lots of i18n fixes (Jan Tomka/judas@hell <tomka@oalevice.sk>)
+- window levels changed to match GNUstep <rfm@gnu.org> ...  src/GNUstep.h
+  src/WindowMaker.h src/window.c wmlib/WMaker.h WINGs/WINGs/WINGs.h
 
 
 Changes since version 0.63.0:

WINGs/WINGs/WINGs.h

@@ -42,25 +42,41 @@ typedef struct {
 #define ClientMessageMask	(1L<<30)
 
 
-/* window stacking level */
+/*
+ * Window levels are taken from GNUstep (gui/AppKit/NSWindow.h)
+ * NSDesktopWindowLevel intended to be the level at which things
+ * on the desktop sit ... so you should be able
+ * to put a desktop background just below it.
+ *
+ * Applications are actually permitted to use any value in the
+ * range INT_MIN+1 to INT_MAX
+ */
 enum {
+  WMDesktopWindowLevel = -1000, /* GNUstep addition     */
   WMNormalWindowLevel = 0,
   WMFloatingWindowLevel = 3,
-  WMDockWindowLevel   = 5,
-  WMSubmenuWindowLevel  = 10,
-  WMMainMenuWindowLevel  = 20
+  WMSubmenuWindowLevel = 3,
+  WMTornOffMenuWindowLevel = 3,
+  WMMainMenuWindowLevel = 20,
+  WMDockWindowLevel = 21,       /* Deprecated - use NSStatusWindowLevel */
+  WMStatusWindowLevel = 21,
+  WMModalPanelWindowLevel = 100,
+  WMPopUpMenuWindowLevel = 101,
+  WMScreenSaverWindowLevel = 1000
 };
 
+
 /* window attributes */
 enum {
   WMBorderlessWindowMask = 0,
   WMTitledWindowMask = 1,
   WMClosableWindowMask = 2,
   WMMiniaturizableWindowMask = 4,
-  WMResizableWindowMask = 8
+  WMResizableWindowMask = 8,
+  WMIconWindowMask = 64,
+  WMMiniWindowMask = 128
 };
 
-
 /* button types */
 typedef enum {
     /* 0 is reserved for internal use */

src/GNUstep.h

@@ -54,15 +54,30 @@ enum {
 };
 
 #ifndef _WINGS_H_
-/* window stacking level */
+/*
+ * Window levels are taken from GNUstep (gui/AppKit/NSWindow.h)
+ * NSDesktopWindowLevel intended to be the level at which things
+ * on the desktop sit ... so you should be able
+ * to put a desktop background just below it.
+ *
+ * Applications are actually permitted to use any value in the
+ * range INT_MIN+1 to INT_MAX
+ */
 enum {
+  WMDesktopWindowLevel = -1000, /* GNUstep addition     */
   WMNormalWindowLevel = 0,
   WMFloatingWindowLevel = 3,
-  WMDockWindowLevel   = 5,
-  WMSubmenuWindowLevel  = 10,
-  WMMainMenuWindowLevel  = 20
+  WMSubmenuWindowLevel = 3,
+  WMTornOffMenuWindowLevel = 3,
+  WMMainMenuWindowLevel = 20,
+  WMDockWindowLevel = 21,       /* Deprecated - use NSStatusWindowLevel */
+  WMStatusWindowLevel = 21,
+  WMModalPanelWindowLevel = 100,
+  WMPopUpMenuWindowLevel = 101,
+  WMScreenSaverWindowLevel = 1000
 };
 
+
 /* window attributes */
 enum {
   WMBorderlessWindowMask = 0,

src/WindowMaker.h

@@ -25,6 +25,7 @@
 #include "wconfig.h"
 
 #include <assert.h>
+#include <limits.h>
 
 #include <WINGs/WINGs.h>
 
@@ -53,16 +54,26 @@ typedef enum {
 } WClassType;
 
 
-/* generic window levels (a superset of the N*XTSTEP ones) */
+/*
+ * generic window levels (a superset of the N*XTSTEP ones)
+ * Applications should use levels between WMDesktopLevel and
+ * WMScreensaverLevel anything boyond that range is allowed,
+ * but discouraged.
+ */
 enum {
-    WMDesktopLevel = 0,
-	WMSunkenLevel = 1,
-	WMNormalLevel = 2,
+	WMBackLevel = INT_MIN+1,	/* Very lowest level */
+	WMDesktopLevel = -1000,		/* Lowest level of normal use */
+	WMSunkenLevel = -1,
+	WMNormalLevel = 0,
 	WMFloatingLevel = 3,
-	WMDockLevel = 4,
-	WMSubmenuLevel = 5,
-	WMMainMenuLevel = 6,
-	WMOuterSpaceLevel = 7
+	WMDockLevel = 5,
+	WMSubmenuLevel = 6,
+	WMMainMenuLevel = 20,
+	WMStatusLevel = 21,
+	WMModalLevel = 100,
+	WMPopUpLevel = 101,
+	WMScreensaverLevel = 1000,
+	WMOuterSpaceLevel = INT_MAX
 };
 
 /*

src/window.c

@@ -396,26 +396,12 @@ wWindowSetupInitialAttributes(WWindow *wwin, int *level, int *workspace)
 
 	if (wwin->wm_gnustep_attr->flags & GSWindowLevelAttr) {
 
-	    switch (wwin->wm_gnustep_attr->window_level) {
-	     case WMNormalWindowLevel:
-		*level = WMNormalLevel;
-		break;
-	     case WMFloatingWindowLevel:
-		*level = WMFloatingLevel;
-		break;
-	     case WMDockWindowLevel:
-		*level = WMDockLevel;
-		break;
-	     case WMSubmenuWindowLevel:
-		*level = WMSubmenuLevel;
-		break;
-	     case WMMainMenuWindowLevel:
-		*level = WMMainMenuLevel;
-		break;
-	     default:
-		*level = WMNormalLevel;
-		break;
-	    }
+	    *level = wwin->wm_gnustep_attr->window_level;
+	    /*
+	     * INT_MIN is the only illegal window level.
+	     */
+	    if (*level == INT_MIN)
+		*level = INT_MIN + 1;
 	} else {
 	    /* setup defaults */
 	    *level = WMNormalLevel;

wmlib/WMaker.h

@@ -69,20 +69,39 @@ typedef struct {
 
 
 #if !defined(_NSWindow_h_) && !defined(_GNUstep_H_GUITypes)
+/*
+ * Window levels are taken from GNUstep (gui/AppKit/NSWindow.h)
+ * NSDesktopWindowLevel intended to be the level at which things
+ * on the desktop sit ... so you should be able
+ * to put a desktop background just below it.
+ *
+ * Applications are actually permitted to use any value in the
+ * range INT_MIN+1 to INT_MAX
+ */
 enum {
-  NSNormalWindowLevel   = 0,
-  NSFloatingWindowLevel  = 3,
-  NSDockWindowLevel   = 5,
-  NSSubmenuWindowLevel  = 10,
-  NSMainMenuWindowLevel  = 20
+  WMDesktopWindowLevel = -1000, /* GNUstep addition     */
+  WMNormalWindowLevel = 0,
+  WMFloatingWindowLevel = 3,
+  WMSubmenuWindowLevel = 3,
+  WMTornOffMenuWindowLevel = 3,
+  WMMainMenuWindowLevel = 20,
+  WMDockWindowLevel = 21,       /* Deprecated - use NSStatusWindowLevel */
+  WMStatusWindowLevel = 21,
+  WMModalPanelWindowLevel = 100,
+  WMPopUpMenuWindowLevel = 101,
+  WMScreenSaverWindowLevel = 1000
 };
 
+
+/* window attributes */
 enum {
-  NSBorderlessWindowMask = 0,
-  NSTitledWindowMask = 1,
-  NSClosableWindowMask = 2,
-  NSMiniaturizableWindowMask = 4,
-  NSResizableWindowMask = 8
+  WMBorderlessWindowMask = 0,
+  WMTitledWindowMask = 1,
+  WMClosableWindowMask = 2,
+  WMMiniaturizableWindowMask = 4,
+  WMResizableWindowMask = 8,
+  WMIconWindowMask = 64,
+  WMMiniWindowMask = 128
 };
 #endif