- Remove find_library(LIB_GLEW ...) from 'resources.cmake'
- Use the variable FLTK_GLEW_DIR to "find" a user supplied GLEW library
for OpenGL3 example programs (examples/OpenGL3*.cxx).
Both static and shared libs (DLLs) are supported, but the static
library is preferred to avoid DLL dependencies.
- Define preprocessor macro 'GLEW_STATIC' by CMake compile definitions
if and only if the static glew library (glew32s) was found and linked.
The previous code defined 'GLEW_STATIC' unconditionally in the source
code which led to undefined references if a shared lib (DLL) was used.
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()
The code failed with 2 or more widgets when FLTK would trigger
partial redraws of the widgets, unless the Fl_Gl_Window was FL_DAMAGE_ALL.
This commit also adds a second FLTK widget to example/OpenGL3test to
check this multiple widget situation, and fixes an error where operator ! was used
instead of ~ .
This commit allows to switch between FL_DOUBLE / FL_SINGLE modes
in widget-containing GL3 windows.
Demo program examples/OpenGL3test is modified to show FLTK widgets
even if the platform does not support OpenGL 3.
Under non-macOS platforms, the key is to call glUseProgram(0); after having used OpenGL 3
which allows to then use OpenGL 1 and draw FLTK widgets over the OpenGL3 scene.
Under macOS, this is impossible because macOS GL3 contexts are not compatible
with GL1. The solution implemented here is to create an additional Fl_Gl_Window
placed above and sized as the GL3-based window, to give it a non opaque,
GL1-based context, and to put the FLTK widgets in that additional window.
- remove obsolete svn '$Id$' tags from all source files
- update .fl files and generated files accordingly
- replace 'http://www.fltk.org' URL's with 'https://...'
- replace bug report URL 'str.php' with 'bugs.php'
- remove trailing whitespace
- fix other whitespace errors flagged by Git
- add and/or fix missing or wrong standard headers
- convert tabs to spaces in all source files
The only relevant code changes are in the fluid/ folder where
some .fl files and other source files were used to generate
the '$Id' headers and footers.
Replace compiler/preprocessor/platform macro "WIN32" with "_WIN32".
Replace "WIN32" in text and documentation with "Windows".
Replace "MSWindows" with "Windows".
To do: README.Windows.txt (and maybe other documentation as well)
needs updates.
git-svn-id: file:///fltk/svn/fltk/branches/branch-1.4@12655 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
This second step replaces FL/x.H with FL/platform.H in all source files.
Dependencies have been adjusted as well.
This commit completes the replacement of FL/x.H with FL/platform.H.
git-svn-id: file:///fltk/svn/fltk/branches/branch-1.4@12641 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
Methods Fl::event_x_pixel() and Fl::event_y_pixel() committed at r.10941
are removed. Instead method Fl_Gl_Window::pixels_per_unit() is added.
The documentation explains in more detail how to write cross-platform
FLTK code supporting high resolution OpenGL windows on retina displays.
The examples/OpenGL3test.cxx app exercises Fl_Gl_Window::pixels_per_unit().
git-svn-id: file:///fltk/svn/fltk/branches/branch-1.3@10945 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
in pixel units that differ from FLTK units for OpenGL windows mapped to a retina display.
On non Mac OS platforms, these are synonyms of Fl::event_x() and Fl::event_y().
The example/OpenGL3test demo program is modified to call these new functions.
git-svn-id: file:///fltk/svn/fltk/branches/branch-1.3@10941 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
On the X11/MSWindows platforms, this requires external installation of the GLEW library.
This fixes STR#3198 and STR#3257.
Added two new examples programs.
git-svn-id: file:///fltk/svn/fltk/branches/branch-1.3@10876 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
Albrecht Schlosser