See GitHub issue #710: "Fl_Preferences not stored on Windows 10"
Summary: don't use the undocumented registry key "Shell Folders",
use function SHGetFolderPathW() instead although this function is
meanwhile deprecated (but available since Windows XP).
Note: tested with 32-bit build running on Windows XP (works).
The previous attempt to fix this issue in commit
dcb4c39956 missed to remove the keyword
'struct' in the offending statement. This new commit actually removes
the compiler warning.
For some obscure reason finding the jpeg lib *after* configuring for
local zlib and/or local png lib failed and thus switched to using the
local jpeg unexpectedly. Searching for jpeg libs before png/zlib fixes
this issue.
Note: this is a pragmatic fix (aka workaround) rather than fixing the
underlying issue. It would be interesting to find out why this happened.
This allows to bypass what looks like a Cairo bug:
FLTK_SCALING_FACTOR=1.7 bin/test/tabs
click on tab2
---> crash
But no crash with other scaling factor values (e.g., 1.8).
* interactive layout alignment rewritten
* interface for new alignment rules
* new alignment dialog box
* user defined layout rules added
* layout rules can be stored in projects, settings, and external files
* Valgrind verification
Flushing the Cairo context is necessary on Windows to make Cairo
drawings appear on the device (screen). This new method makes it easy
for user code to do this correctly after using Cairo drawings.
- add Fl::cairo_flush(cairo_t *)
- document Fl::cairo_flush(cairo_t *)
- reformat Cairo doxygen docs and code (partially)
- use the new method in Fl_Cairo_Window
- use the new method in test/cairo_test.cxx
- other minor (text) changes in test/cairo_test.cxx
- add test/cairo_test to the demo menu (test/demo.menu)
On the Windows platform Cairo drawings must be flushed explicitly.
This is done in Fl_Cairo_Window after calling the draw callback but
it was neither done nor documented in test/cairo_test.cxx when using
another type of Window with its overloaded draw() method, i.e. when
FLTK was configured with --enable-cairoext or CMake OPTION_CAIROEXT.
Note: user code must either explicitly flush the Cairo drawings as
done here or destroy the Cairo context which is not done in this demo
because the Cairo context should be kept alive.
ManoloFLTK