[gtk/win32.fixes.4-4: 3/9] GDK-Win32: Fix AeroSnap indicator and positioning




commit 2831d15685f08a4596118576a44fc7cc9fedd7a9
Author: Chun-wei Fan <fanchunwei src gnome org>
Date:   Tue Jul 6 17:15:39 2021 +0800

    GDK-Win32: Fix AeroSnap indicator and positioning
    
    Ensure that we take the DPI scaling into account so that surfaces will
    be placed at their correct positions upon an AeroSnap operation on HiDPI
    displays.
    
    Also, use the X coordinate of the surface as-is during snap up so that
    we do not inadvertently move the surface to the very left.  Also fix the
    AeroSnap indicator drawing for snap up so that it is drawn at the
    correct places.

 gdk/win32/gdksurface-win32.c | 22 ++++++++--------------
 1 file changed, 8 insertions(+), 14 deletions(-)
---
diff --git a/gdk/win32/gdksurface-win32.c b/gdk/win32/gdksurface-win32.c
index 8eaad72a43..dc0809536a 100644
--- a/gdk/win32/gdksurface-win32.c
+++ b/gdk/win32/gdksurface-win32.c
@@ -2325,19 +2325,11 @@ snap_up (GdkSurface *window)
   y = 0;
   height = maxysize;
 
-  x = x - impl->shadow.left;
-  y = y - impl->shadow.top;
+  x = surface->x - impl->shadow.left / impl->surface_scale;
+  y = y - impl->shadow.top / impl->surface_scale;
   width += impl->shadow_x;
   height += impl->shadow_y;
 
-  /* XXX: FIXME, AeroSnap snap_up() not really working well,
-   *
-   *    * The snap_up() puts the window at the top left corner.
-   *    * Without the following call, the height maximizes but we see a spew of
-   *      "GdkToplevelSize: geometry size (x,y) exceeds bounds" warnings
-   */
-  compute_toplevel_size (window, TRUE, &width, &height);
-
   gdk_win32_surface_move_resize (window, x, y, width, height);
 }
 
@@ -2359,8 +2351,8 @@ snap_left (GdkSurface  *window,
 
   rect.width = rect.width / 2;
 
-  rect.x = rect.x - impl->shadow.left;
-  rect.y = rect.y - impl->shadow.top;
+  rect.x = rect.x - impl->shadow.left / impl->surface_scale;
+  rect.y = rect.y - impl->shadow.top / impl->surface_scale;
   rect.width = rect.width + impl->shadow_x;
   rect.height = rect.height + impl->shadow_y;
 
@@ -2388,8 +2380,8 @@ snap_right (GdkSurface  *window,
   rect.width = rect.width / 2;
   rect.x += rect.width;
 
-  rect.x = rect.x - impl->shadow.left;
-  rect.y = rect.y - impl->shadow.top;
+  rect.x = rect.x - impl->shadow.left / impl->surface_scale;
+  rect.y = rect.y - impl->shadow.top / impl->surface_scale;
   rect.width = rect.width + impl->shadow_x;
   rect.height = rect.height + impl->shadow_y;
 
@@ -3024,6 +3016,7 @@ update_fullup_indicator (GdkSurface                   *window,
   to.height = gdk_surface_get_height (window);
 
   to.y = 0;
+  to.x = window->x;
   to.height = maxysize;
   from = context->indicator_target;
 
@@ -3176,6 +3169,7 @@ start_indicator (GdkSurface                   *window,
       end_size.height = workarea.height;
       break;
     case GDK_WIN32_AEROSNAP_STATE_FULLUP:
+      start_size.x = end_size.x = window->x;
       end_size.y = 0;
       end_size.height = maxysize;
       break;


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