See fltk.general, thread "Is handling simultaneous Left-click and
Right-click drags supported?" from Jul 12, 2023
Status: FL_DRAG operation is terminated when one mouse button is
released, even if more than one button is actually down. Subsequent
mouse movement is reported as FL_MOVE rather than FL_DRAG, this is
under investigation.
* 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.
- remove separate libfltk_cairo to avoid cyclic dependencies, but
- keep a dummy libfltk_cairo in 1.4.0 for backwards compatibility
- move cairo/Fl_Cairo.cxx to src/Fl_Cairo.cxx
- add preliminary Cairo support for Visual Studio (MSVC)
Static linking is not affected by this change, but users building
with hand-made Makefiles will have to remove libfltk_cairo starting
with FLTK 1.4.0. The dummy library can be linked for backwards
compatibility but it will be removed later (in 1.4.x or 1.5.0).
The shared FLTK library libfltk.{so|dylib|dll|..} depends on libcairo
if and only if FLTK is built with one of the Cairo options. This has
always been the case for OPTION_CAIROEXT but is now also true if only
OPTION_CAIRO is selected, i.e. FLTK programs linked with a Cairo
enabled shared FLTK library will also be linked with libcairo. The same
is true for configure options --enable-cairo and --enable-cairoext,
respectively.
Preliminary Cairo support for MSVC now detects a Cairo installation
using the CMake variable FLTK_CAIRO_DIR which must be set by the user.
Note that this feature is temporary and may be changed in the future
for a better and more comfortable version.
- add true unittest and Fl_String testing
- interface and printout are similar to gtest
without requiring external linkage.
just run `unittest --core`.
- new Fl_String API
- extended API to fl_input_str and fl_password_str
- co-authored-by: Albrecht Schlosser <albrechts.fltk@online.de>
Removing all globals in file writer (#653 )
Fix some static analyser complaints
Valgrind: handle width==0 in GfxDrivers on Wayland and X11
Don't use `Fl_Input_::static_value`, it accesses previous
buffer that may be deleted
Project file write encapsulated, removing globals
Encapsulating project file reader, removing states in glbals
Project i/o increased source code readability
Although the memory "leak" is not really an issue in this demo
program (memory is returned anyway), "fixing" the leak warning
issued by valgrind and address sanitizer demonstrates the new
feature to "bind" images.
Detected by valgrind :
==16102== Conditional jump or move depends on uninitialised value(s)
==16102== at 0x449A10: Drawing_Area::idle() (mandelbrot.cxx:143)
This widget offers the selection of all known FLTK schemes as a simple
widget based on Fl_Choice.
Some test and demo programs use Fl_Scheme_Choice to enable the developer
or user to switch schemes quickly for comparison.
Todo:
- add features to add new schemes during runtime (partially done)
- update status when the scheme is changed by Fl::scheme("...")
Add close buttons for Fl_Tabs
Introducing callback reasons
FLUID shows all FL_WHEN_... options
Adding Fl_Tabs overflow types
Improved test/tabs to show new features
FL_OVERRIDE is defined as `override` for C++11 and higher
FL_OVERRIDE is defined as `override` for VisualC 2015 and newer
Don't interfere with Fl_Widget::override()
