Re: GTK4: gtk_tree_view_enable_model_drag_dest () and GdkContentFormats

2018-03-12 Thread Marcus Schätzle 
Sorry for adding to the confusion; it is still working now (and I've also
fixed the remaining part in the meantime), but actually the problem was
another one.
GDK_BUTTON1_MASK was present also in the GTK3 version of my program.
gtk_tree_view_enable_model_drag_source () takes now four arguments instead
of five, and I simply misplaced the other arguments, in conjunction with
forgetting one of them. By pure chance the argument types were matching so
I received no error message.

Thanks for reading anyway!

2018-03-12 23:09 GMT+01:00 Marcus Schätzle :

> I have found the solution for the dragging part.
> While
> gtk_tree_view_enable_model_drag_source (GTK_TREE_VIEW (treeview), 1,
> enable_list, GDK_ACTION_MOVE); // enable_list is a GtkTargetEntry structure
> was working in GTK3 (in fact this was a leftover from the GTK2 beginnings
> of the program), it has to be now
> gtk_tree_view_enable_model_drag_source (GTK_TREE_VIEW (treeview),
> GDK_BUTTON1_MASK, content_formats, GDK_ACTION_MOVE); // content_formats is
> a GdkContentFormats structure
>
> So the real difference was using GDK_BUTTON1_MASK in GTK4.
>
> The actual process of moving the tree rows inside the tree view is not yet
> working in the GTK4 version, but if I can't make it work I can come back
> here later.
>
> 2018-03-12 21:30 GMT+01:00 :
>
>> On 12.03.2018 19:45, Marcus Schätzle wrote:
>>
>>> Hi all,
>>>
>>> I've done a port of a program to GTK4 (3.93.3); there is a part that I
>>> have not yet gotten to work and that is drag and drop inside a tree view.
>>>
>>> I have particularly trouble understanding using the target formats
>>> inside gtk_tree_view_enable_model_drag_dest (). For the GTK 3 version I
>>> use a GtkTargetEntry structure initialised with {{ "STRING",
>>> GTK_TARGET_SAME_WIDGET, 0 }}, which has always worked fine so far.
>>>
>>
>> That is surprising. Usually i'd go for "UTF8_STRING".
>>
>> For GTK 4 I am supposed to use GdkContentFormats. But which mime types am
>>> I supposed to fill into gtk_content_formats_new ()?
>>>
>>
>> "text/plain;charset=utf-8" is the GTK4 equivalent of "UTF8_STRING"
>>
>> That's all i know.
>>
>> Note that last time i checked there was a bug that prevented DnD from
>> working correctly in some cases. For example, DnD of text didn't work for
>> GtkTextView, but did work for GtkEntry.
>>
>>
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>> https://mail.gnome.org/mailman/listinfo/gtk-list
>>
>>
>
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Re: GTK4: gtk_tree_view_enable_model_drag_dest () and GdkContentFormats

2018-03-12 Thread Marcus Schätzle 
I have found the solution for the dragging part.
While
gtk_tree_view_enable_model_drag_source (GTK_TREE_VIEW (treeview), 1,
enable_list, GDK_ACTION_MOVE); // enable_list is a GtkTargetEntry structure
was working in GTK3 (in fact this was a leftover from the GTK2 beginnings
of the program), it has to be now
gtk_tree_view_enable_model_drag_source (GTK_TREE_VIEW (treeview),
GDK_BUTTON1_MASK, content_formats, GDK_ACTION_MOVE); // content_formats is
a GdkContentFormats structure

So the real difference was using GDK_BUTTON1_MASK in GTK4.

The actual process of moving the tree rows inside the tree view is not yet
working in the GTK4 version, but if I can't make it work I can come back
here later.

2018-03-12 21:30 GMT+01:00 :

> On 12.03.2018 19:45, Marcus Schätzle wrote:
>
>> Hi all,
>>
>> I've done a port of a program to GTK4 (3.93.3); there is a part that I
>> have not yet gotten to work and that is drag and drop inside a tree view.
>>
>> I have particularly trouble understanding using the target formats
>> inside gtk_tree_view_enable_model_drag_dest (). For the GTK 3 version I
>> use a GtkTargetEntry structure initialised with {{ "STRING",
>> GTK_TARGET_SAME_WIDGET, 0 }}, which has always worked fine so far.
>>
>
> That is surprising. Usually i'd go for "UTF8_STRING".
>
> For GTK 4 I am supposed to use GdkContentFormats. But which mime types am
>> I supposed to fill into gtk_content_formats_new ()?
>>
>
> "text/plain;charset=utf-8" is the GTK4 equivalent of "UTF8_STRING"
>
> That's all i know.
>
> Note that last time i checked there was a bug that prevented DnD from
> working correctly in some cases. For example, DnD of text didn't work for
> GtkTextView, but did work for GtkEntry.
>
>
> ___
> gtk-list mailing list
> gtk-list@gnome.org
> https://mail.gnome.org/mailman/listinfo/gtk-list
>
>
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Re: GTK4: gtk_tree_view_enable_model_drag_dest () and GdkContentFormats

2018-03-12 Thread lrn1986 

On 12.03.2018 19:45, Marcus Schätzle wrote:

Hi all,

I've done a port of a program to GTK4 (3.93.3); there is a part that I have not 
yet gotten to work and that is drag and drop inside a tree view.


I have particularly trouble understanding using the target formats 
inside gtk_tree_view_enable_model_drag_dest (). For the GTK 3 version I use 
a GtkTargetEntry structure initialised with {{ "STRING", 
GTK_TARGET_SAME_WIDGET, 0 }}, which has always worked fine so far.


That is surprising. Usually i'd go for "UTF8_STRING".

For GTK 4 I 
am supposed to use GdkContentFormats. But which mime types am I supposed to 
fill into gtk_content_formats_new ()?


"text/plain;charset=utf-8" is the GTK4 equivalent of "UTF8_STRING"

That's all i know.

Note that last time i checked there was a bug that prevented DnD from working 
correctly in some cases. For example, DnD of text didn't work for GtkTextView, 
but did work for GtkEntry.




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GTK4: gtk_tree_view_enable_model_drag_dest () and GdkContentFormats

2018-03-12 Thread Marcus Schätzle 
Hi all,

I've done a port of a program to GTK4 (3.93.3); there is a part that I have
not yet gotten to work and that is drag and drop inside a tree view.

I have particularly trouble understanding using the target formats
inside gtk_tree_view_enable_model_drag_dest (). For the GTK 3 version I use
a GtkTargetEntry structure initialised with {{ "STRING",
GTK_TARGET_SAME_WIDGET, 0 }}, which has always worked fine so far. For GTK
4 I am supposed to use GdkContentFormats. But which mime types am I
supposed to fill into gtk_content_formats_new ()? The tree store contains
one element each of GDK_TYPE_PIXBUF and G_TYPE_UINT; the rest of the tree
store consists of G_TYPE_STRING elements.

What I've essentialy done in GTK 3 is using
gtk_tree_view_enable_model_drag_dest (GTK_TREE_VIEW (treeview),
enable_list, 1, GDK_ACTION_MOVE); (enable_list is the structure which I
mentioned above).
together with
gtk_tree_view_enable_model_drag_source (GTK_TREE_VIEW (treeview),
GDK_BUTTON1_MASK, enable_list, 1, GDK_ACTION_MOVE);

For testing of the GTK 4 version I've tried simply with "text/plain" as
mime type in GdkContentFormat. I can't drag anything yet, and there is no
warning or error message printed if I try to do so. I've done my testing on
an installation of Siduction (Debian ustable distro) inside VirtualBox.
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