Graphics path is actually a line with null width so its bounding box
should be obtained with cairo_path_extents() function which assumes
that line width is 0.
Legacy API cairo_win32_surface_create() can create only 24 bpp RGB surfaces but new API cairo_win32_surface_create_with_format() introduced in 1.15.4 supports creating also 32 bpp ARGB surfaces.
So, this new API can be used to create ARGB surface directly from ARGB bitmap (HDC), superseding current implementation based on the access to the bitmap data with cairo_image_surface_create_for_data().
Unfortunately, 0RGB bitmaps are not supported by cairo_win32_surface_create_with_format() and for such bitmaps surface has to be still created from bitmap data.
When x- or y-coordinate of DC origin > 0 then surface created with cairo_win32_surface_create() is not fully operational (for some Cairo operations memory access violation errors occur - see Cairo bug 96482) so in this case we would need to apply a workaround and pass non-transformed DC to Cairo and next apply original DC transformation to the Cairo context operations on our own.
Closes#17564
Since raw DC (encapsulated in source wxDC) can be modified in wxCairoContext explicitly (e.g. when context is instantiated from wxPrinterDC or wxEnhMetaFileDC) or implicitly (by some Cairo functions) we have to store its state in ctor and restore it in dtor to assure consistent state of the source wxDC.
When wxGraphicsContext is created from wxMemoryDC with selected 32bppp wxBitmap then transformation settings applied to the source wxMemoryDC are not passed directly to the Cairo context through underlying HDC and therefore they need to be passed to the context explicitly.
These inherited transformations settings should be used only internally by wxGraphicsContext object and shouldn't be exposed through e.g. GetTransform() function and hence they are stored separately (in a dedicated variable) and "subtracted" from actual transformation settings for reporting purposes.
See #17482.
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
Remove unused Unload(), wxCairoCleanUp(), m_loaded and gCairoRenderer, and redundant Load()
and EnsureIsLoaded(). Just call wxCairoInit() directly, and for GTK do nothing at all.
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@73098 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
done for GDI+.
* Enable the use of the wxCairoContext on MSW.
* Enable creating a wxGCDC from an exisiting wxGraphicsContext.
* Since it's possible for a DLL that is using wx to not be on the PATH nor in
the same location as the .exe, change the wxDynamicLibrary::RawLoad method to
explicitly look first in the same place as the main wx-using binary. This way
it will find DLLs that are in the same folder as the wx-using binary even if
that would not be in the normal DLL search path.
* Change wxDCImpl and wxDC::GetLogicalScale to be const methods.
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@68935 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
This commit is huge but there are no non-white-space changes in it.
Some files containing third-party sources (src/msw/wince/time.cpp,
src/x11/pango*.cpp) were left unchanged.
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@61724 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
1. Clearly document the wxDL_XXX macros; including their implicit usage
of m_ok member variable
2. Made sure they're used in the same way in all places they are used
(sometimes they were passed an object, sometimes a pointer, breaking
compilation: see patch 1791288)
3. Don't allocate wxDynamicLibrary objects on heap unnecessarily (which
removes the need to delete -- or leak, as it was -- them afterwards)
4. Some naming convention fixes
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@48625 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
