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gdk/x11: Honor hotspot during drag cancel animation

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Otherwise the icon "jumps" to the cursor position with its top left when
the animation starts.
This is especially visible if the dragged item is big, like when dragging
mails in Thunderbird.
This commit is contained in:
Robert Mader 2019-12-09 01:45:27 +01:00
parent 9f6d12551f
commit 7a46378e71
1 changed files with 4 additions and 2 deletions
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6
gdk/x11/gdkdrag-x11.c
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@ -1842,8 +1842,10 @@ gdk_drag_anim_timeout (gpointer data)
gdk_surface_show (drag->drag_surface);
gdk_x11_surface_move (drag->drag_surface,
drag->last_x + (drag->start_x - drag->last_x) * t,
drag->last_y + (drag->start_y - drag->last_y) * t);
(drag->last_x - drag->hot_x) +
(drag->start_x - drag->last_x) * t,
(drag->last_y - drag->hot_y) +
(drag->start_y - drag->last_y) * t);
gdk_surface_set_opacity (drag->drag_surface, 1.0 - f);
return G_SOURCE_CONTINUE;