OSX transparent background (PR #26309)
Stefan Csomor
fixes regression, allow tlw backgrounds changing according to desktop background, see #26301
You can view, comment on, or merge this pull request online at:
https://github.com/wxWidgets/wxWidgets/pull/26309
Commit Summary
- 5c34b5d make default bg color transparent
File Changes
(2 files)
- M include/wx/osx/window.h (8)
- M src/osx/window_osx.cpp (11)
Patch Links:
- https://github.com/wxWidgets/wxWidgets/pull/26309.patch
- https://github.com/wxWidgets/wxWidgets/pull/26309.diff
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Stefan Csomor
@csomor pushed 1 commit.
- 9f062b6 adding missing override
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VZ
vadz left a comment (wxWidgets/wxWidgets#26309)Stefan, should I merge this one or do you think it needs more testing (unlikely to happen as long as it's not merged, IME...)?
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Stefan Csomor
csomor left a comment (wxWidgets/wxWidgets#26309)Stefan, should I merge this one or do you think it needs more testing (unlikely to happen as long as it's not merged, IME...)?
Hi Vadim, no sorry, #26301 already mentions some things that don't look right
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VZ
vadz left a comment (wxWidgets/wxWidgets#26309)OK, I'll mark it as being WIP too then — please remove the label when it's ready to merge (or close it if it finally doesn't work). TIA!
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Ryan Ogurek
ryancog left a comment (wxWidgets/wxWidgets#26309)@csomor For wxTextCtrl (and wxSpinCtrl, wxSearchCtrl), you're just missing an override attributes getter, since wxTextCtrl has its own override which uses wxControlBase::GetCompositeControlsDefaultAttributes().
The following patch fixes the appearance for me:
diff --git a/src/common/ctrlcmn.cpp b/src/common/ctrlcmn.cpp
index 672139f3e8..3865ed8c3c 100644
--- a/src/common/ctrlcmn.cpp
+++ b/src/common/ctrlcmn.cpp
@@ -236,7 +236,11 @@ wxControlBase::GetCompositeControlsDefaultAttributes(wxWindowVariant WXUNUSED(va
wxVisualAttributes attrs;
attrs.font = wxSystemSettings::GetFont(wxSYS_DEFAULT_GUI_FONT);
attrs.colFg = wxSystemSettings::GetColour(wxSYS_COLOUR_WINDOWTEXT);
+# ifdef __WXOSX__
+ attrs.colBg = wxTransparentColour;
+# elif
attrs.colBg = wxSystemSettings::GetColour(wxSYS_COLOUR_WINDOW);
+# endif
return attrs;
}
For some reason I don't understand, adding an override in the OSX wxTextCtrl in the same vein as what you've done in this PR branch for wxWindowMac/wxWindow doesn't seem to apply to the wxSearchCtrl... maybe I'm missing something though.
In any case, the wxSpinCtrl uses a generic implementation on wxOSX, (as does wxOwnerDrawnComboBox and wxBitmapComboBox) and so the appearance needs to be overridden there too, but these all use wxControlBase::GetCompositeControlsDefaultAttributes(), so it seems simpler to just set the transparent background there.
Beyond those, the only other abnormality I see is with wxDatePickerCtrl, wxTimePickerCtrl (those two I figure is a similar case), and wxListCtrl and friends, which I'll look into next.
Of course, there's the other generic controls I mentioned which have a opaque background on 3.3.0 also, which I want to look into as well...
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Ryan Ogurek
ryancog left a comment (wxWidgets/wxWidgets#26309)As something of an aside, the controlBackgroundColor used for wxSYS_COLOUR_WINDOW and wxSYS_COLOUR_LISTBOX is noted in the documentation:
Do not use this color for drawing. Instead, use an NSVisualEffectView with the appropriate background material.
So it seems like maybe this is the wrong color to return in wxSystemSettingsNative::GetColour()?
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Stefan Csomor
@csomor pushed 1 commit.
- 43789fa don’t erase when no bg color given on macos
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Stefan Csomor
csomor left a comment (wxWidgets/wxWidgets#26309)@vadz, @vslavik the latest commit to #26309 should undo some damage: your modified dataview now draws correctly in my sandbox again.
I could not reproduce the problem with setting the background color in the PR. But I see that if someone tries to change the background color in a control that is having HasTransparentBackground set to true - thus wxBG_STYLE_TRANSPARENT - there setting the bg colour would be ignored.
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VZ
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VZ
vadz left a comment (wxWidgets/wxWidgets#26309)Merged as 565553e (Make default background color transparent in wxOSX, 2026-03-18)
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