pugl - Personal pugl branch for bug fixes and opening up to allow other render backends

Age	Commit message (Collapse)	Author
2019-07-31	X11: Support UTF8 in window titles	JP Cimalando
	It's possible that this does bad things if a UTF8 string is used on a system that does not support it (because XStoreName is still called), but I have no idea how likely this scenario is. Leaving it this way because it means the ASCII case will still work everywhere, and it's easy enough to avoid if this is a problem.
2019-07-29	Add animation to Cairo test program	David Robillard
	Mainly to be able to test backends, this is still a silly program.
2019-07-29	Cleanup: Clean up includes and call IWYU in lint target	David Robillard

2019-07-29	Completely separate backends from platform implementation	David Robillard
	This removes PuglContextType and allows the user to pass a backend directly. Normally this would come from one of the two accessors declared in the headers, but it would be possible to add backends without changing any of the existing code at all. Unfortunately, it is not possible to preserve backwards compatibility and achieve the ultimate goal of linking only to the required dependencies, so puglInitContextType() has just been removed.
2019-07-29	Add deprecation macro and deprecate puglInitResizable()	David Robillard

2019-07-28	Make enterContext take a drawing parameter like leaveContext	David Robillard
	These need to be symmetric because sometimes different things need to happen in either situation when entering the context as well.
2019-07-28	Fix unused parameter warnings and prevent rot	David Robillard

2019-07-28	Fix building pugl_cairo_test as C++	David Robillard

2019-07-26	Windows: Implement size constraints	David Robillard
	There are two possible approaches to take here: try to expand dimensions that are not being explicitly resized (for example expand the bottom when dragging right), or just stop single-dimension resizes if they would go out of range. I chose the latter here for two reasons: it's hard to always do something smooth and unsurprising with the first approach (and it would require more code), and it can be nice from the user's perspective to easily be able to resize the window to exactly one of its aspect ratio limits. For example, it is very easy to drag pugl_test to 1:1 or 16:9. In other words, simplicity and user power wins.
2019-07-25	Use standard Cairo include paths everywhere	David Robillard
	Weird convention, that.
2019-07-24	Unify key and character fields and separate text events	David Robillard
	Only one field is necessary to store any kind of key, including special keys, since PuglKey occupies a reserved Unicode region. This is generally much simpler to deal with since there is only one value to dispatch on. Text events are separated from key events (like Windows but unlike MacOS or X11) because it is not possible to derive text events from key press events when they occur on Windows. Since merging the two has been the source of some confusion, this approach has some advantages anyway, even though it introduces the need to handle another event type. In the process, text input has been almost completely rewritten. I have tested this with a compose key on X11 and dead keys on Windows and MacOS and everything seems to work correctly, though there may (as always) still be issues with more exotic input methods.
2019-07-24	Rename PuglEventKey::utf8 to "string" with char type	David Robillard
	This matches Gtk and is generally less annoying to work with.
2019-07-23	Test: Move some generic code to a separate header	David Robillard

2019-07-23	Test: Move test programs to a subdirectory	David Robillard