This amends a0298f3149 by only avoiding
dispatching of the native events in nested event loops, but still
dispatching any pending wx-level events before exiting it.
The latest code still solves the original problem, as it was due to
having an endless stream of native events, without possibly introducing
new problems and even crashes if, for example, some dialog event handler
queued an event referencing the dialog itself for later procession, as
this event must be dispatched before the loop exits and the dialog is
destroyed, which wasn't the case any more after the changes of
a0298f3149 but is done again now.
See #11273.
Add wxPNGImageData and use it to store variables that used to be local
in wxPNGHandler::LoadFile() and could be clobbered by the use of
longjmp() and pass these variables to DoLoadPNGFile(), which still uses
longjmp(), whereas LoadFile() doesn't any longer.
In addition to fixing the warning, this allows to use C++ dtors for
freeing memory and makes the code shorter and, arguably, more clear than
the original version (although written in an unusual way) and definitely
more clear than the version with the warning fix.
This reverts commit 99ea06203a ("Fix
clobbering warning") and replaces it with a different solution to the
same problem.
Previously this was only done when wxBU_AUTODRAW was specified, making
this the only place in wxWidgets where this style was actually used.
This was not ideal, as the same code, not using wxBU_AUTODRAW, worked
just fine under MSW and GTK, but created ugly-looking buttons under Mac,
so do the right thing by default and let people call SetMargins(0, 0) if
they really don't want to have any margins.
Closes#18170.
Due to https://bugzilla.gnome.org/show_bug.cgi?id=710888 GtkInfoBar
wasn't shown if it had been hidden before -- which is exactly what
wxInfoBar did.
Fix this using the workaround proposed in the bug report, which makes
the info bar appear immediately, without any transition, which might be
not ideal, but markedly better than failing to show it at all.
Changing item cell in ShowAsRadio() was wrong as the item cell doesn't
exist when it is called and changing the column cell didn't seem to work
well, so just recreate the entire cell in it instead.
See https://github.com/wxWidgets/wxWidgets/pull/853
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
Changes of c0b0562533 to common code broke
wxGTK1 build, as wx/gtk/private/wrapgtk.h is for wxGTK 2+ only.
Fix this by handling wxGTK 1 separately and including gtk/gtk.h directly
for it.
Hopefully this code will be removed, together with the rest of wxGTK1
support, in some not so distant future.
This is especially important under MSW, where the modality of the nested
event loops actually ends as soon as wxModalEventLoop::Exit() is called,
and so we must avoid dispatching any events in the current loop after it
happens or we risk reentering the same loop again, which could result in
e.g. parent modal dialog being closed before the child event loop
returns (because the event closing the former was dispatched from the
latter) and other unexpected sequences of events.
To prevent this from happening, only dispatch pending events after the
loop exit if it's the outermost loop, as there should be no danger in
doing it in this case. Conversely, we don't lose anything by not doing
this in nested event loops as the outer loop will take care of any
remaining pending events anyhow.
To make this work in an ABI-compatible way, add a global counter of the
currently existing event loops which is used to check if there is more
than one event loop currently running.
Closes#11273, #11573, #11269.
Don't leave "m_hover" invalid if the number of columns in wxHeaderCtrl
is reduced, as this would result in a crash later when it is used.
This notably fixes a crash after removing the last column from generic
wxDataViewCtrl.
Closes https://github.com/wxWidgets/wxWidgets/pull/852
It was too high otherwise, which was especially noticeable in high DPI.
This is still not perfect, as the default search bitmap is not centered
neither and is a couple of pixels too high, but better than before.
Apply DPI scaling to the extra vertical margin added by this macro to
the font height.
This makes sense and results in wxTextCtrl (and other controls, e.g.
wxSearchCtrl) having the same height as native ones when using high DPI
too.
Note that this required adding wxGetEditHeightFromCharHeight() function
as one of the existing uses of EDIT_HEIGHT_FROM_CHAR_HEIGHT() wasn't
inside a wxWindow-derived class method and also adding wxUSE_GUI guard
around these GUI-only definitions as a function, unlike a macro, can't
be compiled without full wxWindow declaration in scope.
There is no need to override this virtual function, if the control size
changes, a wxEVT_SIZE event is generated in any case, resulting in a
call to LayoutControls() without explicitly calling it from here.
There doesn't seem to be any reason to have these flags, which duplicate
the visibility state of m_searchButton and m_cancelButton respectively.
Also update the buttons visibility immediately in ShowSearchButton() and
ShowCancelButton() instead of doing it in LayoutControls() as before,
which was confusing as laying out is not supposed to show/hide anything.
Finally, return true, not false, from IsSearchButtonVisible() if the
button is actually visible because there is an associated menu, even if
ShowSearchButton(false) had been called. This seems more logical and
makes the code simpler, but we need to check whether the native Mac
version also behaves like this or not.
No other changes in behaviour.
Replace LIGHT_STEP macro and 20 magic number with
SEARCH_BITMAP_LIGHTNESS and CANCEL_BITMAP_LIGHTNESS constants which are
a bit more clear, hopefully.
No real changes.
Make this button of exactly the bitmap size instead of using the full
control height for it, even if/when the bitmap is smaller.
This fixes some random junk being shown in the bottom two pixels of the
search button sometimes: this was due to only redrawing the part covered
by the bitmap in wxSearchButton::OnPaint(), leaving the rest of the
button unpainted (because wxSearchButton uses wxBG_STYLE_PAINT).
Don't invent yet another std::max-macro. We probably could just use the
standard function instead but for now use wxMax(), for consistency with
the rest of the code base.
No real changes.
