Since f7247086c2 ("Fix storing wxBitmap data in GdkPixbuf", 2019-09-18),
919a4ec702 ("Fix drawing wxBitmap with mask", 2019-09-18) and other
commits (see #18498, #18508) RGBA wxBitmaps with masks are drawn properly
under wxGTK2 so if source wxImage has both alpha channel and a mask
the target wxBitmap also should have both components.
Since f7247086c2 ("Fix storing wxBitmap data in GdkPixbuf", 2019-09-18),
919a4ec702 ("Fix drawing wxBitmap with mask", 2019-09-18) and other
commits (see #18498, #18508) RGBA wxBitmaps with masks are drawn properly
under wxGTK2 so only wxBitmap raw RGBA data should be transferred to
wxImage RGBA data because mask is stored in the target wxImage separately.
Sizing the images stored in the list should stick to the convention
adopted in the native wxImageList implemented in wxMSW.
Images stored in the list should have the sizes as it is declared for
the list even if provided bitmaps have different sizes.
In case of discrepancies their dimensions should be adjusted accordingly
(cropped or extended).
If image using bitmap and mask colour is added to nonmasked wxImageList we
need to convert effective mask to alpha channel values prior to adding the
image to the native list to preserve transparency.
Bitmaps stored in the list as a result of replacing existing ones should
conform to the same constraints as bitmaps directly added to the list.
These constraints are applied in the shared GetImageListBitmap() function
called both on adding and replacing the images.
Handling mask when converting wxBitmap to wxImage was accidentally
broken by 7e9afad53a (Add real support for monochrome bitmaps to wxMSW,
2020-10-19). Fix this now and reuse the new wxMonoPixelData to make the
code simpler and more readable.
This commit is best viewed ignoring whitespace-only changes, as it
unindents a large block of code.
Closes https://github.com/wxWidgets/wxWidgets/pull/2125Closes#18974, #18975.
In order to be able to use monochrome bitmaps as wxMask, improve support
for them in various ways:
1. Implement loading and saving of monochrome BMP files.
2. Add wxMonoPixelData for direct access to monochrome bitmap pixels.
3. Implement conversion from wxImage to monochrome wxBitmap.
Closes https://github.com/wxWidgets/wxWidgets/pull/2032
This restores the previous behaviour inadvertently changed by bfeae1922d
(Minor optimizations in GetMultiLineTextExtent(), 2020-06-10) and makes
it official by documenting it and adding tests checking for it.
It wasn't completely obviously if this was intentional or accidental
before, but at least wxStaticText itself relied on the old behaviour,
and chances are that so did some code outside the library, so make this
part of the API now.
See #18825.
This seems more logical and is compatible with wxDC in wxMSW and wxGTK2,
as well as other kinds of DC, e.g. wxPostScriptDC.
It also looks like the current behaviour was unintentional as it
happened only because wxGCDCImpl::DoGetTextExtent() always passed all
non-null parameters to wxGraphicsContext::GetTextExtent(), even if it
didn't need the values for all of them, and thus bypassed the special
case for the empty string which was already present in the latter
function.
Fix this, making DoGetTextExtent() more efficient as a side effect (we
now avoid unnecessary calls to pango_layout_iter_get_baseline() in the
most common case), and also add another test for empty string to
wxGraphicsContext itself, for non-GTK case.
Also document this behaviour and add a test checking for it.
This is consistent with wxToString(wxColour) and seems more useful than
either returning black string representation (as wxMSW used to do) or
asserting (as wxGTK did).
Document this behaviour and add a test checking for it.
Closes#18623.
Also define wxColour-specific matchers to allow comparing RGB(A)
channels to the expected values, replacing the old ASSERT_EQUAL_RGB(A)
macros.
No real changes.
When processing mnemonics, the resulting string should still contain
them and they need to be stripped before measuring its width, but the
code didn't do it.
This didn't prevent the tests from passing, but only due to another bug
in ellipsization code itself, which lost the mnemonics completely. As
this bug is about to be fixed, the test needs to take mnemonics into
account properly now.
This method used to return a dangling pointer to a temporary buffer,
which resulted in a crash when using it, e.g. in the unit test.
Fix this by keeping a QImage as a member in wxBitmapRefData, so that the
pointer to its data remain valid until UngetRawData() is called.
Also check that GetRawData() returns a non-null pointer in the test.
Closes https://github.com/wxWidgets/wxWidgets/pull/1067
private field 'm_dwCookie' is not used
'return' will never be executed
result of comparison of unsigned enum expression < 0 is always false
'FlushDC' overrides a member function but is not marked 'override'
potentially uninitialized local variable 'bound' used
