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Fix comparing wxDataFormat with wxDF_INVALID in wxGTK

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Define wxDataFormat::operator==(wxDataFormatId) instead of relying on
the implicit conversion from wxDataFormatId to wxDataFormat, as this
can't be done when the format ID is wxDF_INVALID because creating
wxDataFormat results in an assert failure in this case, while comparing
with wxDF_INVALID is clearly a perfectly valid operation.

Add a unit test checking for this.

Closes #22213.
This commit is contained in:
Vadim Zeitlin
2022-03-23 13:43:44 +01:00
parent 09a472e3ef
commit b91173f76e
2 changed files with 12 additions and 4 deletions
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9
include/wx/gtk/dataform.h
View File

@@ -33,10 +33,11 @@ public:
wxDataFormat& operator=(NativeFormat format)
{ SetId(format); return *this; }
// comparison (note that we rely on implicit conversions for comparison
// with wxDataFormatId, but have to provide them explicitly for comparison
// with NativeFormat to avoid ambiguity between comparing from it to
// wxDataFormat or vice versa)
// comparison
bool operator==(wxDataFormatId type) const
{ return m_type == type; }
bool operator!=(wxDataFormatId type) const
{ return m_type != type; }
bool operator==(NativeFormat format) const
{ return m_format == (NativeFormat)format; }
bool operator!=(NativeFormat format) const

7
tests/misc/guifuncs.cpp
View File

@@ -70,6 +70,13 @@ TEST_CASE("GUI::URLDataObject", "[guifuncs]")
CHECK( wxTheClipboard->SetData(dobj) );
wxTheClipboard->Flush();
}
TEST_CASE("GUI::DataFormatCompare", "[guifuncs][dataformat]")
{
const wxDataFormat df(wxDF_TEXT);
CHECK( df == wxDF_TEXT );
CHECK( df != wxDF_INVALID );
}
#endif // wxUSE_DATAOBJ
TEST_CASE("GUI::ParseFileDialogFilter", "[guifuncs]")