wxOSX Retina fixes: wxImageList::GetSize().

wxImageList returns size of its bitmap as pixel size, i.e.  twice the
displayed screen on HiDPI screens.  Unfortunately,
wxImageList::GetSize() is used heavily in (generic) GUI drawing code,
e.g.  to properly size wxListCtrl's icon columns.  As wxImageList is
used primarily by controls, it seems reasonable to adjust for scaling
here, rather than requiring all users of the class to do it.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@75351 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
Remove wx/generic/colrdlgg.h from common GUI headers.

This header is not used in all ports, notably not in wxMSW nor wxGTK.

See #15753.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@75395 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
Use wxScopedArray instead of raw new[]/delete[] and fix memory leak.

Don't leak memory in case of error when reading from the stream in BMP loading
code.

Closes #15789.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@75505 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
Simplify and fix column determination code in wxGridStringTable.

The number of columns in the table is now (since r60717) stored in m_numCols,
so there is no need to get it from wxGrid any more. This is not only simpler
and faster but also more correct as the first row might not have the full
number of values yet.

Closes #15809.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@75552 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
Fix handling of bitmaps with alpha channel in wxMSW wxImageList.

Don't use mask and alpha together, this results in visual artefacts and masks
are unnecessary with RGBA bitmaps anyhow.

The only potentially problematic remaining case is mixing bitmaps with alpha
and mask inside the same image list (as we need to indicate whether we use the
mask or not when creating it), but this should probably be rare and in the
meanwhile we can at least RGBA bitmaps with image lists, which includes doing
this implicitly when they are used as button bitmaps.

Also refactor wxBitmap code to extract part of CopyFromIconOrCursor() to allow
reusing it in the newly added MSWUpdateAlpha().

See #11476.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@75567 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
Fix cursor inheritance and busy cursor/global cursor, closes #15801


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@75690 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
Reduce the number of realloc() calls in wxHtmlTableCell.

Don't call realloc() after adding each row, this is horribly inefficient, so
preallocate more memory to avoid this.

Closes #15931.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@75746 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
Recompute the tooltip width when changing its text in wxMSW.

This avoids unnecessarily wrapping the tooltips if they are set to a longer
string than their initial value later.

Closes #4685.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@75756 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
Add new XRC headers to the core project too.

Closes #15942.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@75787 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
Different fix for cursor inheritance and busy cursor/global cursor.
Previous work was not compatible with GTK < 2.18 and did not properly handle some cases
see #15801


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@75807 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
Optimized wxRTC insertion and deletion when floating objects are present.


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@75884 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
Set model pointer in wxDataViewEvents generated under wxOSX.

Add missing SetModel() calls.

Closes #16004.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@75933 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
Fix memory leak when not finishing iteration started by wxFindFirstFile().

Memory allocated by wxFindFirstFile() was only freed when no more files could
be found by wxFindNextFile(), resulting in a memory leak if the iteration was
never finished.

Closes #4631.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@75975 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
Document interaction of wxSplitterWindow gravity with initial size.

Document the somewhat counter intuitive (but difficult to change) behaviour of
the splitter when both sash position and gravity are set.

See #15996.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@75976 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
Expose ScintillaWX DoDragEnter() and DoDragLeave() methods.

These methods are needed to allow implementing alternative wxDropTargets, in
addition to the already public DoDragOver().

Closes #16010.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@75977 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
Allow retrieving wxPG_FLOAT_PRECISION and not just setting it.

It was possible to call SetAttribute() to change this attribute value but not
to get it back. Override DoGetAttribute() to also allow the latter.

See #15625.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@75978 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
Use symbolic attributes names in wxPropertyGrid code.

No real changes, just use constants instead of hardcoding their values.

See #15625.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@75979 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
Fix several rounding problems with float values in wxPropertyGrid.

Loss of precision when converting floating point numbers to text and back
could result in several problems, notably comparing a valid value with the
minimum could fail after a round trip through wxSpinCtrl.

Fix this by using a specialization of NumericValidation() handling floating
point values specially and correctly.

Closes #15625.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@75980 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
fix inconsistent line endings

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@75383 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
Allow initializing wxScopedArray more conveniently.

Typical wxScopedArray initialization uses "new T[n]" expression, allow to omit
most of it and specify just n, the number of elements to allocate.

Use the new shorter form in the places where wxScopedArray(new ...) was used
(which is in almost all of them)

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@75504 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775