* initialize XColor/XftColor
this does not change behavior, but avoids passing uninitialized data to X/Xft functions
* gui, x11: move have_argb_visual to x11 files
this variable only has meaning with respect to X11
* x11: clear have_argb_visual if the setting changes to false
otherwise, we may try to use colors with alpha when we no longer requested a 32-bit visual
* x11: premultiply alpha of background colors
* x11: clean up set_foreground_color a bit
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Co-authored-by: bi4k8 <bi4k8@github>
* Add mouse events.
Signed-off-by: Tin Svagelj <tin.svagelj@live.com>
* Rename MOUSE_EVENTS flag to BUILD_MOUSE_EVENTS.
Signed-off-by: Tin Svagelj <tin.svagelj@live.com>
* Update NORM_ERR func argument from std::string to char*
Because func was previously char* I forgot to update NORM_ERR function
argument to `func.c_str()` not that it's std::string.
Previously func was pointing to std::string memory that was freed at
assignment.
Signed-off-by: Tin Svagelj <tin.svagelj@live.com>
Signed-off-by: Tin Svagelj <tin.svagelj@live.com>
Since we rely on a global object ctor to add a display output to the
list, it is not referenced from anywhere else, so does not get linked in
when building tests since most objects are pulled from a static library.
Another option would be to use --whole-archive to link to it.
Hopefully this will lead the way to adding support for things like
Wayland and Haiku graphics, cf. #56.
We define a display_output_base class that display backends
can derive from to implement display-specific calls.
