This reverts commit 41f6f17d01 ("return 0
(meaning the file is not seekable, as the docs now explain) instead of
4KB for the files in sysfs under Linux") as it seems to be wrong to
return a value different from what "ls -l" or "stat" return here and the
original problem was solved in a better way in the previous commit.
See #9965.
Closes#17818.
Calling this function with an unseekable file, such as any file under
/sys on Linux systems, would previously just hang as the loop condition
was never satisfied when length was -1.
Fix this by checking for this case and using a different approach by
extending the buffer we read the data into as we go instead of
preallocating it all at once.
See #9965.
Trying to give all the remaining space after allocating enough to the
other columns to the first one doesn't work well with wxDataViewCtrl,
which tries to do the same thing, but with the last column, so we
actually get some strange mix of behaviours, with both the first and
last columns changing size after the control itself is resized.
Stop fighting with wxDataViewCtrl and just let it to its own thing.
Closes#17476.
Fix a copy-and-pasto in the header and also mention that wxURLDataObject
derives from wxDataObjectComposite, and not wxTextDataObject, in wxGTK
too.
Also add a note about the exact base class being an implementation
detail.
Closes https://github.com/wxWidgets/wxWidgets/pull/624
wxDateTime timezone-related methods always use the current timezone
offset, while other methods, using CRT, use correct value for the given
date, which may be different.
This discrepancy accounted for test failures in Europe/Minsk time zone
as Belarus has switched from UTC+2 to UTC+3 since 1999 date used in the
test.
It is impossible to really fix the problem easily, so just skip the test
in this case and also mention this bug in the documentation.
See #15370.
Don't rely on time zone offset to check whether it is local as this
doesn't, and can't, work for the local time zone in Great Britain which
uses the same offset as UTC, but does use DST, unlike the latter.
Add a unit test (albeit disabled by default) checking that the code that
previously didn't work correctly in BST does work now (run the tests
using "TZ=Europe/London ./test wxDateTime-BST-bugs" under Unix to test).
Closes#14317, #17220.
See #10445.
Handle this feature as all the other ones and provide a configure switch
and a setup.h option to disable it if necessary, as it may be desirable
to do it, especially under Linux, to avoid extra dependency on pangoft2
if this functionality is unnecessary.
Implement support for enabling just some gesture events instead of
having to choose between getting none or all of them.
Also make wxTOUCH_NONE really disable the gestures events generation
instead of just doing nothing as before.
Don't request touch event generation for all windows by default, this
has an inherent overhead and is not needed for 99% of the application
windows, so require calling EnableTouchEvents() explicitly to do it
instead.
Note that this requires properly initializing gesture recognizers in
wxOSX now that they're not always allocated, otherwise releasing them
when destroying the window would crash.
wxInvalidSize is a documented return value for wxDir::GetTotalSize(),
yet it was not available by including just wx/dir.h as it was declared
in wx/filename.h only.
Fix this by declaring it in wx/dir.h too.
Closes https://github.com/wxWidgets/wxWidgets/pull/609
Also use this for wxArray::Shrink() implementation as it's more
efficient than the old swap-based implementation which requires an extra
memory allocation instead of really shrinking the existing one.
Unfortunately it doesn't seem possible to prevent the native MSW dialog
from changing its size in both upper and lower direction vertically, so
at least mention this in the documentation and mention a possible
workaround of manually adjusting the text to always have the same number
of lines.
Such dialogs must be destroyed before the main event loop starts running
to avoid problems with the temporary event loop created by the dialog
internally.
See #17983.
The dialog now grows automatically as needed and Fit() can be called to
shrink it back if desired and this behaviour is consistent under all
platforms.
This method is supposed to adjust the dialog size to its contents and
while the dialog increases automatically when using native
implementation under MSW, it doesn't shrink back on its own and so it's
still useful to allow Fit() to do it.
Update the sample to test Fit() too.
MSW implementation of wxProgressDialog adjusted the dialog size to the
size of the message shown in it on each update, resulting in visually
unpleasant constant jumping around (this is the same problem that we
used to have in wxGenericProgressDialog long time ago, see #10624).
Minimize this by using TDM_UPDATE_ELEMENT_TEXT instead of
TDM_SET_ELEMENT_TEXT for changing the element text. This still increases
the dialog size if the new element text is longer than the old value,
but at least doesn't shrink it back if it is shorter, which is already
quite an improvement.
Notice that this change requires using TDF_EXPAND_FOOTER_AREA style, as
otherwise the expanded information can't be updated without a re-layout.
But this doesn't seem to be a big loss and it's not really clear why did
we explicitly clear this flag before anyhow.
Update the dialogs sample to make it easy to test for this behaviour and
the documentation to mention MSW version peculiarities.
Just "activate" the font immediately when adding it using
AddPrivateFont(), nothing seems to be gained from having two functions
and it just makes things more complicated both when implementing and
when using the API.
This is necessary to recognize new fonts, for example those added using
AddPrivateFont(), as being valid: otherwise they were not found in the
cache and couldn't be used in wxGTK.
wxFont::AddPrivateFont() can now be used to load a font from a file for the
applications private use. Update the font sample to show this.
Closes#13568.
