Add a wxGTK-specific function to set wxNotificationMessage icon name.

It's trivial to use a stock icon with the given name in wxGTK with libnotify,
so provide a way to do it. However this is not as simple as that in other
implementations (notably Windows), so make it private to this port for now.

In the future we should try to support arbitrary wxIcons as well as extend
wxIconLocation to support FreeDesktop stock icon names.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@72250 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
Revert HasModifiers() change in behaviour, add HasAnyModifiers().

In 2.8 wxKeyEvent::HasModifiers() returned false if (only) Shift was pressed
as it tested for Control and Alt only but when it was moved to wxKeyboardState
in r55745 it started checking for all modifiers as this made more sense now
that it was used by wxMouseEvent. However it broke existing code using it,
including in wxWidgets itself (in wxTreeCtrl), so revert it now and add
HasAnyModifiers() that does check for all modifiers, including Shift.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@72251 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
Generate clipboard events for wxComboBox in wxGTK too.

These events were only generated for wxTextCtrl but should be sent for
non-readonly wxComboBox too, so refactor the code to allow its reuse from
wxComboBox.

Also add EVT_TEXT_PASTE handlers for both controls to the widgets sample for
testing.

Closes #14520.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@72252 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
Make keyboard sample output less confusing.

Warn if key presses occur when the input window doesn't have focus as the
usual key events are not generated then which could be understood as a bug in
the sample instead of the correct result.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@72253 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
Remove unnecessary Update() in wxStyledTextCtrl scrolling code.

Calling Update() every time ScrollText() dramatically slowed down scrolling
and doesn't seem to be necessary, so remove it.

See #9057.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@72254 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
Remove workaround for slow scrolling in wxStyledTextCtrl.

We don't need to drop mouse wheel events coming too fast after the previous
commit as now scrolling in wxStyledTextCtrl works quickly enough.

Closes #9057.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@72255 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
Fix bug in wxNumberFormatter::ToString() for negative numbers.

Don't include the possible leading sign in the span of digits to be grouped as
this gave nonsensical strings such as "-,123" when adding thousands separators
to "123".

Closes #14526.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@72256 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
Support wxID_HELP_{INDEX,SEARCH} and wxID_MDI_WINDOW_XXX in XRC.

Add missing wxStandardID enum elements to AddStdXRCID_Records().

Also add blank lines to make the code in this function align with the enum
declaration to make side-by-side comparison easier.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@72257 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
No real changes, just use accessors in wxTextDataObject.

Use {Set,Get}Text() instead of using m_text directly in wxTextDataObject as
these virtual methods overridable and should be called in case the class
doesn't actually use m_text for its storage at all.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@72258 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
Translate wxTextDataObject to/from native EOL format.

The text data should use CR LF EOLs under Windows but the data inside the
program typically has only LF EOLs, so translate between them automatically in
wxTextDataObject.

Closes #14444.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@72259 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775