[CMake] Fix match of .fl files in macro CREATE_EXAMPLE.


git-svn-id: http://seriss.com/public/fltk/fltk/branches/branch-1.3@10373 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
Added Doxygen comments for enum Fl_RGB_Scaling.

git-svn-id: http://seriss.com/public/fltk/fltk/branches/branch-1.3@10374 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
Added Fl_Window::shape(Fl_Image*) and fixes for Apple’s retina displays.

git-svn-id: http://seriss.com/public/fltk/fltk/branches/branch-1.3@10375 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
Remove extraneous comma from enum, fix compiler warning.

Thanks to Michael Baeuerle.


git-svn-id: http://seriss.com/public/fltk/fltk/branches/branch-1.3@10376 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
Move RGB image scaling algorithm methods in base class Fl_Image.

See also discussion in fltk.coredev of Sept 07, 2014 and later
with subject "Fixing the nearest-neighbour scaling".


git-svn-id: http://seriss.com/public/fltk/fltk/branches/branch-1.3@10377 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
Adjust the Fl_Preferences method

char Fl_Preferences::RootNode::getPath( char *path, int pathlen )

so that it returns a (1), rather than a (-1) in the case that
RUNTIME preferences are being read.

This is for several reasons:

- On some platforms, char is unsigned, so a method that is spec'd to 
return a char type can not safely return (-1) as a value.

- It seems like (most?) other fltk methods that return 
char true/false results return 0 or 1, so this is more consistent.


Thanks to Michael Baeuerle for spotting this one.




git-svn-id: http://seriss.com/public/fltk/fltk/branches/branch-1.3@10378 ea41ed52-d2ee-0310-a9c1-e6b18d33e121