[PATCH v8 5/8] winex11: Keep track of the host windows children window rects.

[Rémi Bernon]

From: Rémi Bernon

---
 dlls/winex11.drv/window.c | 12 ++++++++++++
 dlls/winex11.drv/x11drv.h |  2 +-
 2 files changed, 13 insertions(+), 1 deletion(-)

diff --git a/dlls/winex11.drv/window.c b/dlls/winex11.drv/window.c
index 0c8db3dedef..0e2c587e858 100644
--- a/dlls/winex11.drv/window.c
+++ b/dlls/winex11.drv/window.c
@@ -184,6 +184,7 @@ struct host_window *get_host_window( Window window, BOOL create )

host_window_set_parent( win, xparent );
     SetRect( &win->rect, attr.x, attr.y, attr.x + attr.width, attr.y + attr.height );
+    if (win->parent) host_window_configure_child( win->parent, win->window, win->rect, FALSE );

TRACE( "created host window %p/%lx, parent %lx rect %s\n", win, win->window,
            xparent, wine_dbgstr_rect(&win->rect) );
@@ -195,12 +196,14 @@ static void host_window_reparent( struct host_window **win, Window parent, Windo
 {
     struct host_window *old = *win, *new = get_host_window( parent, TRUE );
     unsigned int index;
+    RECT rect = {0};
     void *tmp;

if ((*win = new)) host_window_add_ref( new );

if (old && (index = find_host_window_child( old, window )) < old->children_count)
     {
+        rect = old->children[index].rect;
         old->children[index] = old->children[old->children_count - 1];
         old->children_count--;
     }
@@ -209,7 +212,11 @@ static void host_window_reparent( struct host_window **win, Window parent, Windo
     {
         if (!(tmp = realloc( new->children, (index + 1) * sizeof(*new->children) ))) return;
         new->children = tmp;
+
+        OffsetRect( &rect, -rect.left, -rect.top );
         new->children[index].window = window;
+        new->children[index].rect = rect;
+
         new->children_count++;
     }

@@ -218,12 +225,16 @@ static void host_window_reparent( struct host_window **win, Window parent, Windo

RECT host_window_configure_child( struct host_window *win, Window window, RECT rect, BOOL root_coords )
 {
+    unsigned int index;
+
     if (root_coords)
     {
         POINT offset = host_window_map_point( win, 0, 0 );
         OffsetRect( &rect, -offset.x, -offset.y );
     }

+    index = find_host_window_child( win, window );
+    if (index < win->children_count) win->children[index].rect = rect;
     return rect;
 }

@@ -2172,6 +2183,7 @@ void set_window_parent( struct x11drv_win_data *data, Window parent )
     if (!data->whole_window) return; /* only keep track of parent if we have a toplevel */
     TRACE( "window %p/%lx, parent %lx\n", data->hwnd, data->whole_window, parent );
     host_window_reparent( &data->parent, parent, data->whole_window );
+    if (data->parent) host_window_configure_child( data->parent, data->whole_window, data->rects.visible, TRUE );
     data->parent_invalid = 0;
 }

diff --git a/dlls/winex11.drv/x11drv.h b/dlls/winex11.drv/x11drv.h
index 59c18a91a13..b8711f30b1a 100644
--- a/dlls/winex11.drv/x11drv.h
+++ b/dlls/winex11.drv/x11drv.h
@@ -369,7 +369,7 @@ struct host_window
     RECT rect; /* host window rect, relative to parent */
     struct host_window *parent;
     unsigned int children_count;
-    struct { Window window; } *children;
+    struct { Window window; RECT rect; } *children;
 };

extern void host_window_destroy( struct host_window *win );