fa01392788
Unfortunately, it seems that this is not a straightforward method to apply transformation to the current underlying path geometry (ID2D1PathGeometry object) "in-place" (ie. transform it and use for further graphics operations). Some simple methods offered by Direct2D are not useful for these purposes: 1. ID2D1Factory::CreateTransformedGeometry() converts ID2D1PathGeometry object to ID2D1TransformedGeometry object and ID2D1TransformedGeometry inherits from ID2D1Geometry (not from ID2D1PathGeometry) and cannot be used for path operations. 2. ID2D1Geometry::CombineWithGeometry() which could be used to get final geometry by combining empty geometry with transformed geometry doesn't offer any combine mode which would produce a "sum" of geometries (D2D1_COMBINE_MODE_UNION gives kind of outline). Moreover the result is stored in ID2D1SimplifiedGeometrySink not in ID2DGeometrySink. So, it seems that ability to transform the wxGraphicsPath (even several times) and still use it after this operation(s) can be achieved by using a geometry group object (ID2D1GeometryGroup) this way: 1. After applying transformation to the current path geometry with ID2D1Factory::CreateTransformedGeometry() the result is stored in the collection of transformed geometries (an auxiliary array) and after that a new (empty) geometry is open (in the same state as just closed one) and this geometry is used as a current one for further graphics operations. 2. Above steps are done at every transformation so our effective geometry will be a superposition of all previously transformed geometries stored in the collection (array) and the current operational geometry. 3. If there is necessary to use this combined effective geometry in any operation then ID2D1GeometryGroup created with ID2D1Factory::CreateGeometryGroup() from the collection of stored geometries will act as a proxy geometry. Closes #17549 |
||
|---|---|---|
| .github | ||
| art | ||
| build | ||
| demos | ||
| distrib | ||
| docs | ||
| include | ||
| interface | ||
| lib | ||
| locale | ||
| misc | ||
| samples | ||
| src | ||
| tests | ||
| utils | ||
| .gitattributes | ||
| .gitignore | ||
| .travis.yml | ||
| acinclude.m4 | ||
| aclocal.m4 | ||
| appveyor.yml | ||
| autoconf_inc.m4 | ||
| autogen.sh | ||
| BuildGit.txt | ||
| config.guess | ||
| config.sub | ||
| configure | ||
| configure.in | ||
| descrip.mms | ||
| install-sh | ||
| Makefile.in | ||
| mkinstalldirs | ||
| README.md | ||
| regen | ||
| setup.h_vms | ||
| setup.h.in | ||
| version-script.in | ||
| wx-config-inplace.in | ||
| wx-config.in | ||
| wxwin.m4 | ||
About
wxWidgets is a free and open source cross-platform C++ framework for writing advanced GUI applications using native controls.
wxWidgets allows you to write native-looking GUI applications for all the major desktop platforms and also helps with abstracting the differences in the non-GUI aspects between them. It is free for the use in both open source and commercial applications, comes with the full, easy to read and modify, source and extensive documentation and a collection of more than a hundred examples. You can learn more about wxWidgets at https://www.wxwidgets.org/ and read its documentation online at http://docs.wxwidgets.org/
Platforms
wxWidgets currently supports the following primary platforms:
- Windows XP, Vista, 7, 8 and 10 (32/64 bits).
- Most Unix variants using the GTK+ toolkit (version 2.6 or newer or 3.x).
- OS X (10.7 or newer) using Cocoa (32/64 bits).
Most popular C++ compilers are supported including but not limited to:
- Microsoft Visual C++ 2003 or later (up to 2015).
- g++ 3.4 or later, including MinGW/MinGW-64/TDM under Windows.
- Clang under OS X and Linux.
- Intel icc compiler.
- Oracle (ex-Sun) aCC.
Licence
wxWidgets licence is a modified version of LGPL explicitly allowing not distributing the sources of an application using the library even in the case of static linking.
Further information
If you are looking for support, you can get it from
- Mailing Lists
- Discussion Forums
- #wxwidgets IRC channel
- Stack Overflow
(tag your questions with
wxwidgets) - Please report bugs at http://trac.wxwidgets.org/newticket
We would also gladly welcome your contributions.
Have fun!
The wxWidgets Team.