This convenient method allows to expand all children of the item
recursively.
This is directly supported by both native implementations, so it makes
sense to have this in wxDataViewCtrl itself, even if it could be also
(less efficiently) implemented in the user code.
And use it to get HiDPI support wherever we use GtkImage. This extends and
consolidates support for custom drawing of images which has already been added
somewhat redundantly in several places.
wxMemoryDC and wxScreenDC dtors were freeing a context they didn't own, potentially
causing a crash. Fixed by having the base wxWindowDC dtor free the context.
See #18566
Restore the checks for the model stamp, reverting the changes of
18594afe76: we still need to ignore the
calls to at least iter_children() and iter_nth_child() model methods
that can be called from inside gtk_tree_view_set_model() when we reset
the model, as running these methods crashes when trying to use the
pointers to already deleted items.
For consistency and robustness, add checks for the model stamp to all
the methods and not just those two, just in case other ones end up being
called later in some way.
Also add a unit test checking that DeleteAllItems() doesn't crash and
does delete all items.
Closes#18533.
Sending events from e.g. AssociateModel(NULL) made the GTK version
inconsistent with the other ones, neither of which sent any events in
this case, and could result in a lot of grief in the user code if it
didn't expect the event handler to be called at this moment (e.g. during
the destruction).
Make wxGTK compatible with the other ports and safer by always disabling
the selection changed events before calling gtk_tree_view_set_model().
Note that it's still incompatible with the other ports because they also
preserve the selection even after the change of model, but wxGTK loses
it. Ideally this would be fixed too, but for now live with this as the
lesser evil.
Instead of actually deleting all the items from the control, just
refresh it by resetting the model, as this is what Cleared() does in
both the generic and native macOS versions of wxDataViewCtrl, so calling
it there resulted in very different results from doing it under wxGTK,
where instead of refreshing the control contents it raelly cleared it.
The name of this method is unfortunately confusing, but it seems better
to change its behaviour in wxGTK, even if this doesn't match the name,
rather than change it in the other ports to make them do the same thing,
as this could break some currently working code.
Also, this change results in a welcome code simplification.
The code handling right button click used the path of the item under
mouse without checking if there was any item, resulting in GTK+ warnings
due to the use of an invalid item.
Simply add a check for the item validity: we definitely don't want to
select it if it's invalid anyhow.
A couple of fixes compared to the previous commit:
- Use the correct gtk_tree_view_get_cell_area() rather than
gtk_tree_view_get_background_area() which doesn't work correctly
for the items which are not shown because their parent is collapsed.
- Translate logical coordinates to physical ones using
gtk_tree_view_convert_bin_window_to_widget_coords().
With these fixes, the unit tests for this function pass and can now be
enabled under wxGTK as well.
See https://github.com/wxWidgets/wxWidgets/pull/990
This function returns a wxRect of the given wxDataViewItem. If no column
is provided, the width will be the sum of all the visible columns widths.
See https://github.com/wxWidgets/wxWidgets/pull/990
The column is available in the GTK+ callback, so just pass it along to
avoid gratuitous inconsistency with the generic version.
Also update the sample to show the column value for these events.
This function has to be called from a GTK+ callback, so make it public
and also rename to GTKColumnToWX() to conform to the naming convention
mandating the use of "GTK" prefix for the public methods which are not
part of the public API.
This allows showing radio buttons in wxDataViewCtrl easily and natively.
Notice that this approach, adding an extra function to the existing
renderer class instead of creating some new wxDataViewRadioRenderer (see
https://github.com/wxWidgets/wxWidgets/pull/809), was finally chosen
because it is simpler to implement and, more importantly, because it
will be more natural to generalize if/when we also add a 3-state
check/radio renderer.
Closes https://github.com/wxWidgets/wxWidgets/pull/853
Add wx/gtk/private/wrapgtk.h wrapping gtk/gtk.h in pragmas disabling
these warnings and include it everywhere instead of directly including
gtk/gtk.h.
Also include wx/gtk/private/gtk2-compat.h from this wrapper header as it
was included by 90% of the files including gtk/gtk.h itself and it seems
to be better and simpler to just always include it.
Previously this event was not sent for the standard renderers, such as
wxDataViewTextRenderer, at all in wxGTK because the base class
FinishEditing() class didn't do anything if m_editorCtrl was null, as it
was always the case for non-custom renderers.
Fix this by refactoring the base class code in yet another way and
extracting the part which can be reused by both the generic and GTK
implementation in a new DoHandleEditingDone() function and call it from
wxGTK code.
Finally, check "editing-canceled" property to also correctly generate
the event with IsEditCancelled() returning true when editing is canceled
by e.g. pressing Esc in a standard renderer too.
And, as a final bonus, this makes the (just introduced) slightly
artificial DoFinishOrCancelEditing() unnecessary, so it can be removed,
without reintroducing any code duplication.
See #17835.
The code was more complicated than necessary, with the base class
providing both virtual GtkOnCellChanged() and GtkOnTextEdited() that
were both overridden to achieve the same thing, namely customizing how
the value entered by user is converted to wxVariant, in different
derived classes.
Make GtkOnTextEdited() non-virtual and remove GtkOnCellChanged()
completely and add a new simple GtkGetValueFromString() which is called
from GtkOnTextEdited() to do the conversion.
This removes the existing code duplication and will make it simpler to
modify this code in the future, without changing the behaviour.
There is an impedance mismatch between wxDataViewCtrl API, which allows
deleting all items of the model at once, and GtkTreeView, which only
allows deleting them one by one, so bad things happen when we start
deleting the items from the GTK+ model after already having deleted them
from the wxDataViewModel, due to dereferencing the already freed
pointers.
Work around this by explicitly marking the model as being "temporarily
unsafe to use" by setting the stamp, uniquely identifying it, to 0 (and
ensuring that it's never 0 during the normal operation), and checking
for it in all functions that are called by GTK+ from inside
gtk_tree_model_row_deleted() that we call from Cleared().
The fix is not ideal, as the list of these functions was determined
empirically and could change in the future GTK+ versions, and also ugly,
but there doesn't seem to be any other way around this and at least now
Valgrind doesn't report invalid memory reads after calling
wxTreeListCtrl::DeleteAllItems() as it did before.
Using GtkBin as widget parent didn't work without overriding its
size-related vfuncs until GTK+ 3.8 and, in particular, resulted in the
editor (which was the child of the bin) not being visible at all with
GTK+ 2.
Switch to using GtkHBox as parent, which does work with both GTK+ 2 and
any GTK+ 3 version, but keep using GtkBin with GTK+ 4 as GtkHBox is
removed in it.
This fixes bug introduced in c2821dcea0
since which custom wxDataViewCtrl editors were not visible any more.
Closes#17686.
No real changes, just don't call gtk_wx_cell_renderer_get_size()
unnecessarily as we never use its result: the code using the returned
rectangle was commented out ever since it was added (more than 10 years
ago) in 1e510b1e2d
No real changes, just don't define macros that we never use and don't
plan on using it (why would we need to test whether something is of this
type when we already know it).
Use wx_is_at_least_gtk2(minor) instead of gtk_check_version(2, minor)
because it is more clear and also works as expected (i.e. returns true)
when using GTK+ 3 instead of creating difficult to notice bugs in the
code by failing the version check in this case.
See #18004.
This replaces the changes of 24c0401e81
which, for some reason, used a global variable for storing whether the
selection function had been already set or not, when this clearly is a
per-control (or per-selection, but this seems one and the same) bit of
information.
Replace global ms_firstTime with a wxDataViewCtrlInternal field to avoid
asserts as soon as EditItem() is called on more than one wxDataViewCtrl.
Closes#17946.
Asserting before dereferencing a null pointer (in BuildBranch(), called
immediately after the asserts in question) is useless, as usual. Use wxCHECK
to complain and avoid crashing instead.
Closes#17776.
Add wxDataViewRenderer:: SetValueAdjuster() and a
wxDataViewValueAdjuster class. This can be used to customize rendering
of values depending on whether they are highlighted (selection) or not,
without having to implement an entire new custom renderer.
Don't apply alignment to native controls in SetAlignment() method, where
it may not be known yet due to column-to-renderer inheritance if
wxDVR_DEFAULT_ALIGNMENT is used (the default). Move such code to
GtkUpdateAlignment() (which was made virtual) in all renderers.
This fixes unintended right-aligning of columns with GTK+ 2 when default
alignment was used.
In both the generic and GTK+ implementations, setting the value of a
bitmap column to wxNullVariant resulted in the bitmap, if set for some
rows, being repeated on the rows with null value.
