In order to examine real colors of pixels we need to have unmodified (aliased) edges between regions drawn with different colors.
For for wxDCs backed by wxGraphicsContext (e.g. under wxGTK3) antialiasing is enabled by default and to prevent falsifying pixel colors we have to disable it prior to drawing operations.
See #17666.
Under wxGTK3 default color depth for wxBitmap is 24 bpp and therefore wxAlphaPixelData cannot be used to get access to wxBitmap's internal data in this case.
See #17666.
The unit test added in 607b800444 didn't work on
the systems using 32 bpp screens, i.e. almost all of them, because it tried to
use 24 bpp wxNativePixelData with them.
Fix this by using wxAlphaPixelData, which won't work on non 32 bpp systems,
and so is still not ideal, but at least makes the test work on most systems by
default.
See #17666.
The unit test added in 607b800444 had a bug as
it tried to use the bitmap directly while it was still selected into a
wxMemoryDC, which wasn't guaranteed to work and resulted in an assert.
Fix this by destroying wxMemoryDC earlier.
See #17666.
New tests of retrieving bounding box coordinates after two consecutive drawing operations, for the case when wxDC coordinates have been changed between the operations and for resetting the bounding box.
See #17667.
The scope of tests corresponds to the scope of existing wxDC/wxGCDC tests. Additionally, newly introduced wxGraphicsContext::GetClipBox() function is tested too.
1. Under GTK+ 3 wxDC is implemented as wxGCDC (with underlying Cairo renderer) and hence there is no need to test wxDC individually.
2. wxRegion is implemented under GTK+ 2 using GdkRegion but under GTK+ 3 it is implemented using cairo_region_t so some region attributes can be slightly different in some circumstances for both ports. This happens e.g. for non-rectangular regions which can have slightly different clip extents for GTK+ 2 and 3. We have to take this into account in the tests of non-rectangular clipping region and accept that actual clipping box position can differ of few pixels from expected position (so comparing clipping box positions shouldn't be exact but with some error tolerance).
Some coordinates of clipping regions given in device coordinates has to be slightly modified to avoid rounding errors in conversions from device to logical coordinates.
Tests of setting clipping region(s) with wxDC::SetDeviceClippingRegion() for transformed wxDC/wxGCDC (with changed device origin, logical origin and scale and with various renderers for wxGCDC) to check if all transformations are taken into account in the clipping box calculations.
See #17596
In these tests clipping region is set for transformed wxDC/wxGCDC (with changed device origin, logical origin and scale) to check if all these transformations are taken into account in the clipping box calculations.
Flushing native Direct2D renderer (invoking wxGCDC::Flush() -> wxGraphicsContext::Flush() -> ID2D1RenderTarget::Flush()) is apparently not enough to update underlying DC (with selected in bitmap) and therefore we have to destroy the renderer (which in turn invokes ID2D1RenderTarget::EndDraw()) to do so.
1. Added checking if actual drawing output is really clipped at the edge of the clipping box.
2. Added tests for wxGCDC with GDI+, Direct2D, Cairo renderers under wxMSW.
3. Added new test to check calculations for bounding box set entirely outside DC area.
If there is no wxBitmap selected into wxMemoryDC which is passed to wxGraphicsContext then there is raised an assertion warning (harmless in this context but caught and reported by CppUnit). To suppress this message we need to select any bitmap into wxMemoryDC prior to creating a wxGraphicsContext.
When pixel doubling is in use, e.g. when using GTK+ 2 on high DPI displays,
the width of a single TAB can be greater than the hardcoded 50 width in the
test, which resulted in test failures.
Base the widths on the average character width to make sure we can always
ellipsize.
A few $Id$ references remained after commit
3f66f6a5b3 or appeared in newly added files.
Remove the lines containing svn keywords except when it concerns
third-party files. In that case keep the line as-is or collapse it to the
keyword if it had been expanded to contain wx commit information (only
occurs with src/zlib/ChangeLog).
Update the bounding box in all the methods drawing something. This wasn't
done before in many of them, resulting in the bounding box remaining empty,
but it is updated now and a new test checking that it is was added.
Closes#12904.
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@76953 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This keyword is not expanded by Git which means it's not replaced with the
correct revision value in the releases made using git-based scripts and it's
confusing to have lines with unexpanded "$Id$" in the released files. As
expanding them with Git is not that simple (it could be done with git archive
and export-subst attribute) and there are not many benefits in having them in
the first place, just remove all these lines.
If nothing else, this will make an eventual transition to Git simpler.
Closes#14487.
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@74602 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This used to work before wxTextMeasure changes so make it work again instead
of optimizing the case of empty string away and not returning anything in the
descent and externalLeading output parameters in this case.
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@74464 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
VC6 doesn't like template methods, so use a helper template class instead,
hopefully this will finally allow it to compile the test suite again.
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@72947 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
Just forward back to wxDC itself in this case instead of using the
platform-specific code in wxTextMeasure that only works with native DCs.
See #14781.
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@72801 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
Don't call wxTextMeasure::DoGetTextExtent() with NULL width pointer, it now
supposes that both width and height pointers are non-NULL.
Add at least a trivial unit test for GetMultiLineTextExtent().
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@72700 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
Add a new private wxTextMeasure class implementing methods for measuring text
and move the often duplicated (but not always identically) code for doing the
same from wxDC and wxWindow into it.
Currently this class is only really implemented in wxMSW and wxGTK.
Also extend the test for text measuring functions and rename it to
MeasuringTextTestCase from MeasuringContextTestCase as it's not wxGC-specific
any more.
Closes#14705.
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@72699 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
Correct errors in TransformPoint() and TransformDistance().
Change Rotate() to interpret positive angles as rotating clockwise, for
consistency with wxGraphicsContext::Rotate().
Improve the unit test to verify that all the transformations work correctly.
Closes#14334.
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@71555 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
The affine transform was previously multiplied by the translation matrix on
the right but this was incompatible with both the MSW version of the same
method and all the other methods of the generic version.
So multiply the transform by the translation on the left, as everywhere else.
Closes#13875.
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@70444 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
Use locale-independent functions to parse and generate the floating point
alpha representation in CSS syntax for colours to make it work in locales
which don't use period as decimal separator.
Closes#13077.
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@67356 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
wxCairoRenderer::CreateMeasuringContext() is only implemented for wxGTK so the
test fails under other ports when using Cairo. Disable it for wxX11 for now.
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@66095 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
Add missing svn:eol-style property to all .cpp files. Also set svn:keywords for .cpp files which don't have that property yet to Id, including src/osx/core/glgrab.cpp for consistency (it doesn't make use of the property).
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@65561 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
Add a lot of tests for many wx GUI classes.
Add tests using the new wxUIActionSimulator class but disable them under OS X
as too many of them currently fail there.
Refactor the test suite to make organizing the existing tests and adding the
new ones easier.
Improve documentation using the information gathered while testing the
classes. Also update the documentation of the testing system itself.
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@65386 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
