Bug 3140 - [GTK] Issues with drag icon
Summary: [GTK] Issues with drag icon
Alias: None
Product: Xamarin Studio
Classification: Desktop
Component: Shell ()
Version: unspecified
Hardware: PC Mac OS
: Normal normal
Target Milestone: ---
Assignee: Bugzilla
Depends on:
Reported: 2012-01-30 11:30 UTC by Lluis Sanchez
Modified: 2014-03-06 14:37 UTC (History)
3 users (show)

Tags: gtk
Is this bug a regression?: ---
Last known good build:

patch which fixes issues 1) and 2) (1.94 KB, patch)
2012-04-22 11:24 UTC, Kristian Rietveld (inactive)
patch which fixes issue 3) (996 bytes, patch)
2012-04-22 11:24 UTC, Kristian Rietveld (inactive)

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Description Lluis Sanchez 2012-01-30 11:30:29 UTC
This is a Gtk/Mac bug. When starting a drag & drop of an item in a tree view or in any other widget, there are 3 problems:

1) Sometimes, the drag icon is temporarily shown in an incorrect position. See for example http://screencast.com/t/PCMnayFB88wB. When starting the drag, the drag icon is shown just below the ComboBox.cs item, and then jumps to the mouse position.
2) When the drag & drop is cancelled, the drag icon should bounce back to the initial drag position, but instead it goes to a different position. This can also be seen in the above screencast.
3) Gtk/Mac ignores the hot_x and hot_y arguments when calling gtk_drag_set_icon_pixbuf. In the above screencast, the icon should be placed below the cursor, not above.
Comment 1 Kristian Rietveld (inactive) 2012-04-11 16:50:48 UTC
I can definitely confirm 1) and 2).  I haven't explicitly tested 3) yet.  I will be looking into fixing these issues.
Comment 2 Kristian Rietveld (inactive) 2012-04-22 11:24:17 UTC
Created attachment 1724 [details]
patch which fixes issues 1) and 2)
Comment 3 Kristian Rietveld (inactive) 2012-04-22 11:24:36 UTC
Created attachment 1725 [details]
patch which fixes issue 3)
Comment 4 Kristian Rietveld (inactive) 2012-04-22 11:25:19 UTC
These patches make testtreeview behave like on X11 for me.  They have already been upstreamed into the gtk-2-24 branch, they will appear in master and gtk-3-4 too at some point.
Comment 5 Kristian Rietveld (inactive) 2012-04-22 11:46:24 UTC
For the record, for GTK+ 3.x, the second patch which fixes the hot spot position is not necessary.