From 3f026cafa5d2fa76d31e379ca1cd3e7809907594 Mon Sep 17 00:00:00 2001
From: Alexandre Julliard <julliard@winehq.org>
Date: Wed, 22 Sep 2010 20:28:11 +0200
Subject: [PATCH] user32: Add support for RTL window layouts in
 WIN_GetRectangles.

---
 dlls/user32/win.c | 28 ++++++++++++++++++++++++++++
 server/window.c   | 26 ++++++++++++++++++++++++++
 2 files changed, 54 insertions(+)

diff --git a/dlls/user32/win.c b/dlls/user32/win.c
index d6916767f6f..17925e9f1e2 100644
--- a/dlls/user32/win.c
+++ b/dlls/user32/win.c
@@ -44,6 +44,14 @@ static DWORD process_layout;
 
 /**********************************************************************/
 
+static inline void mirror_rect( const RECT *window_rect, RECT *rect )
+{
+    int width = window_rect->right - window_rect->left;
+    int tmp = rect->left;
+    rect->left = width - rect->right;
+    rect->right = width - tmp;
+}
+
 /* helper for Get/SetWindowLong */
 static inline LONG_PTR get_win_data( const void *ptr, UINT size )
 {
@@ -689,12 +697,32 @@ BOOL WIN_GetRectangles( HWND hwnd, enum coords_relative relative, RECT *rectWind
         case COORDS_CLIENT:
             OffsetRect( &window_rect, -win->rectClient.left, -win->rectClient.top );
             OffsetRect( &client_rect, -win->rectClient.left, -win->rectClient.top );
+            if (win->dwExStyle & WS_EX_LAYOUTRTL)
+                mirror_rect( &win->rectClient, &window_rect );
             break;
         case COORDS_WINDOW:
             OffsetRect( &window_rect, -win->rectWindow.left, -win->rectWindow.top );
             OffsetRect( &client_rect, -win->rectWindow.left, -win->rectWindow.top );
+            if (win->dwExStyle & WS_EX_LAYOUTRTL)
+                mirror_rect( &win->rectWindow, &client_rect );
             break;
         case COORDS_PARENT:
+            if (win->parent)
+            {
+                WND *parent = WIN_GetPtr( win->parent );
+                if (parent == WND_DESKTOP) break;
+                if (!parent || parent == WND_OTHER_PROCESS)
+                {
+                    WIN_ReleasePtr( win );
+                    goto other_process;
+                }
+                if (parent->dwExStyle & WS_EX_LAYOUTRTL)
+                {
+                    mirror_rect( &parent->rectClient, &window_rect );
+                    mirror_rect( &parent->rectClient, &client_rect );
+                }
+                WIN_ReleasePtr( parent );
+            }
             break;
         case COORDS_SCREEN:
             while (win->parent)
diff --git a/server/window.c b/server/window.c
index 81299128c06..ebcb5bf6ebe 100644
--- a/server/window.c
+++ b/server/window.c
@@ -905,6 +905,16 @@ static inline void offset_rect( rectangle_t *rect, int offset_x, int offset_y )
 }
 
 
+/* mirror a rectangle respective to the window client area */
+static inline void mirror_rect( const rectangle_t *window_rect, rectangle_t *rect )
+{
+    int width = window_rect->right - window_rect->left;
+    int tmp = rect->left;
+    rect->left = width - rect->right;
+    rect->right = width - tmp;
+}
+
+
 /* set the region to the client rect clipped by the window rect, in parent-relative coordinates */
 static void set_region_client_rect( struct region *region, struct window *win )
 {
@@ -2134,13 +2144,29 @@ DECL_HANDLER(get_window_rectangles)
         offset_rect( &reply->window, -win->client_rect.left, -win->client_rect.top );
         offset_rect( &reply->visible, -win->client_rect.left, -win->client_rect.top );
         offset_rect( &reply->client, -win->client_rect.left, -win->client_rect.top );
+        if (win->ex_style & WS_EX_LAYOUTRTL)
+        {
+            mirror_rect( &win->client_rect, &reply->window );
+            mirror_rect( &win->client_rect, &reply->visible );
+        }
         break;
     case COORDS_WINDOW:
         offset_rect( &reply->window, -win->window_rect.left, -win->window_rect.top );
         offset_rect( &reply->visible, -win->window_rect.left, -win->window_rect.top );
         offset_rect( &reply->client, -win->window_rect.left, -win->window_rect.top );
+        if (win->ex_style & WS_EX_LAYOUTRTL)
+        {
+            mirror_rect( &win->window_rect, &reply->visible );
+            mirror_rect( &win->window_rect, &reply->client );
+        }
         break;
     case COORDS_PARENT:
+        if (win->parent && win->parent->ex_style & WS_EX_LAYOUTRTL)
+        {
+            mirror_rect( &win->parent->client_rect, &reply->window );
+            mirror_rect( &win->parent->client_rect, &reply->visible );
+            mirror_rect( &win->parent->client_rect, &reply->client );
+        }
         break;
     case COORDS_SCREEN:
         client_to_screen_rect( win->parent, &reply->window );
-- 
2.11.4.GIT