From d2dcf1935668b3f4fe5861058e65b98751f1ceb2 Mon Sep 17 00:00:00 2001
From: Fred Kiefer <fredkiefer@gmx.de>
Date: Wed, 3 May 2006 21:09:08 +0000
Subject: [PATCH] Allow wrapping of native windows into NSWindow.

git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/gui/trunk@22851 72102866-910b-0410-8b05-ffd578937521
---
 ChangeLog                                     |  9 +++
 .../Additions/GNUstepGUI/GSDisplayServer.h    |  2 +
 Source/GSDisplayServer.m                      |  9 +++
 Source/NSWindow.m                             | 60 +++++++++++++++----
 4 files changed, 68 insertions(+), 12 deletions(-)

diff --git a/ChangeLog b/ChangeLog
index 1c9bcabde..f455ecd5f 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,12 @@
+2006-05-03  Fred Kiefer <FredKiefer@gmx.de>
+
+	* Headers/Additions/GNUstepGUI/GSDisplayServer.h (-nativeWindow:::::):
+	Added new method.
+	* Source/GSDisplayServer.m (-nativeWindow:::::):
+	Implemented this method as subclassResponsibility.
+	* Source/NSWindow.m (-initWithWindowRef:], -windowRef):
+	Implemented these methods to wrap native window into GNUstep windows.
+
 2006-05-01  Richard Frith-Macdonald <rfm@gnu.org>
 
 	* Source/NSMatrix..m: ([performKeyEquivalent:]) Check modifier flags
diff --git a/Headers/Additions/GNUstepGUI/GSDisplayServer.h b/Headers/Additions/GNUstepGUI/GSDisplayServer.h
index 998d2ef77..102d2da55 100644
--- a/Headers/Additions/GNUstepGUI/GSDisplayServer.h
+++ b/Headers/Additions/GNUstepGUI/GSDisplayServer.h
@@ -116,6 +116,8 @@ APPKIT_EXPORT NSString * GSScreenNumber;
 - (int) window: (NSRect)frame : (NSBackingStoreType)type : (unsigned int)style
 	      : (int)screen;
 - (void) termwindow: (int) win;
+- (int) nativeWindow: (void *)winref : (NSRect*)frame : (NSBackingStoreType*)type 
+                    : (unsigned int*)style : (int*)screen;
 
 /* Only if handlesWindowDecorations returns YES. */
 - (void) stylewindow: (unsigned int) style : (int) win;
diff --git a/Source/GSDisplayServer.m b/Source/GSDisplayServer.m
index d425b53dc..b59f656e5 100644
--- a/Source/GSDisplayServer.m
+++ b/Source/GSDisplayServer.m
@@ -547,6 +547,15 @@ GSCurrentServer(void)
   [self subclassResponsibility: _cmd];
 }
 
+/** Create all the backend structures for a reference to a native window and 
+    return the extend, backing type, style and screen for that window. */ 
+- (int) nativeWindow: (void *)winref : (NSRect*)frame : (NSBackingStoreType*)type 
+		    : (unsigned int*)style : (int*)screen
+{
+  [self subclassResponsibility: _cmd];
+  return 0;
+}
+
 /** Sets the style of the window. See [NSWindow-styleMask] for a
     description of the available styles */
 - (void) stylewindow: (unsigned int) style : (int) win
diff --git a/Source/NSWindow.m b/Source/NSWindow.m
index f989ada74..d6ae9328a 100644
--- a/Source/NSWindow.m
+++ b/Source/NSWindow.m
@@ -984,6 +984,51 @@ many times.
   return self;
 }
 
+- (id) initWithWindowRef: (void *)windowRef
+{
+  NSRect contentRect;
+  unsigned int aStyle;
+  NSBackingStoreType bufferingType;
+  NSScreen* aScreen;
+  int screen;
+  int winNum;
+  NSGraphicsContext *context = GSCurrentContext();
+  GSDisplayServer *srv = GSCurrentServer();
+
+  // Get the properties for the underlying window
+  winNum = [srv nativeWindow: windowRef : &contentRect : &bufferingType
+		                : &aStyle : &screen];
+  // FIXME: Get the screen for the right screen number.
+  aScreen = nil;
+
+  // Set up a NSWindow with the same properties
+  self = [self initWithContentRect: contentRect
+			 styleMask: aStyle
+			   backing: bufferingType
+			     defer: YES
+			    screen: aScreen];
+
+  // Fake the initialisation of the backend
+  _windowNum = winNum;
+  NSMapInsert (windowmaps, (void*)(intptr_t)_windowNum, self);
+
+   // Set window in new _gstate
+  DPSgsave(context);
+  [srv windowdevice: _windowNum];
+  _gstate = GSDefineGState(context);
+  DPSgrestore(context);
+
+  {
+    NSRect frame = _frame;
+    frame.origin = NSZeroPoint;
+    [_wv setFrame: frame];
+    [_wv setNeedsDisplay: YES];
+    [_wv setWindowNumber: _windowNum];
+  }
+
+  return self;
+}
+
 -(void) colorListChanged:(NSNotification*)notif
 {
   if ([[notif object] isEqual: [NSColorList colorListNamed:@"System"]])
@@ -4222,20 +4267,11 @@ resetCursorRectsForView(NSView *theView)
   return nil;
 }
 
-- (id) initWithWindowRef: (void *)windowRef
-{
-  // TODO
-  NSLog(@"Method %s is not implemented for class %s",
-	"initWithWindowRef:", "NSWindow");
-  return nil;
-}
-
 - (void *)windowRef
 {
-  // TODO
-  NSLog(@"Method %s is not implemented for class %s",
-	"windowRef", "NSWindow");
-  return (void *) 0;
+  GSDisplayServer *srv = GSServerForWindow(self);
+
+  return [srv windowDevice: _windowNum];
 }
 
 - (void *) windowHandle