From dc894ffdd14a61d934af625af10fb384e89ef375 Mon Sep 17 00:00:00 2001
From: Omar Zeidan <omar@zeidan.io>
Date: Sat, 30 Dec 2017 10:20:48 +0100
Subject: Bugfix for monitors of different sizes

---
 src/core/window.c | 32 ++++++++++++++++++++------------
 1 file changed, 20 insertions(+), 12 deletions(-)

(limited to 'src')

diff --git a/src/core/window.c b/src/core/window.c
index b5f9468c..3f6314d6 100644
--- a/src/core/window.c
+++ b/src/core/window.c
@@ -114,7 +114,7 @@ static MetaTileMode calculate_tiling_mode(int x,
                                           MetaRectangle work_area,
                                           int shake_threshold);
 
-static void         meta_window_rescale_to_monitor (MetaRectangle *target_rect,
+static void         meta_window_transform_to_monitor (MetaRectangle *target_rect,
                                                     const MetaRectangle *from_monitor,
                                                     const MetaRectangle *to_monitor);
 
@@ -2877,15 +2877,23 @@ meta_window_move_to_monitor(MetaWindow *window,
   if(META_WINDOW_TILED (window))
     {
       window->tile_monitor_number = to_monitor->number;
-      meta_window_rescale_to_monitor(&window->saved_rect,
+
+      /* Transform user_rect and saved_rect to the other monitor */
+      meta_window_transform_to_monitor(&window->saved_rect,
+                                     &from_monitor->rect,
+                                     &to_monitor->rect);
+      meta_window_transform_to_monitor(&window->user_rect,
                                      &from_monitor->rect,
                                      &to_monitor->rect);
+
       meta_window_tile(window);
       return;
     }
-  
+
+  /* Normally, just transform the window itself */
   meta_window_get_client_root_coords(window, &target_rect);
-  meta_window_rescale_to_monitor(&target_rect,
+  
+  meta_window_transform_to_monitor(&target_rect,
                                  &from_monitor->rect,
                                  &to_monitor->rect);
   
@@ -2896,27 +2904,27 @@ meta_window_move_to_monitor(MetaWindow *window,
                           target_rect.height);
 }
 
-static void meta_window_rescale_to_monitor(MetaRectangle *target_rect,
+static void meta_window_transform_to_monitor(MetaRectangle *target_rect,
                                            const MetaRectangle *from_monitor,
                                            const MetaRectangle *to_monitor)
 {
   double horizontal_ratio;
   double vertical_ratio;
   
-  target_rect->x += to_monitor->x - from_monitor->x;
-  target_rect->y += to_monitor->y - from_monitor->y;
-  
-  if(from_monitor->width == to_monitor->width &&
-     from_monitor->height == to_monitor->height)
-    return;
-  
   horizontal_ratio = (double)to_monitor->width / from_monitor->width;
   vertical_ratio = (double)to_monitor->height / from_monitor->height;
 
+  target_rect->x -= from_monitor->x;
+  target_rect->y -= from_monitor->y;
+
   target_rect->width *= horizontal_ratio;
   target_rect->height *= vertical_ratio;
   target_rect->x *= horizontal_ratio;
   target_rect->y *= vertical_ratio;
+
+  target_rect->x += to_monitor->x;
+  target_rect->y += to_monitor->y;
+
 }
 
 
-- 
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