Hi John,
had some quick check for gtk+3.18.9 +glib-2.45.8 +HiDPI patches together with bluefish.
Indeed, pixelation is gone for all widgets, except gucharmap plugin (when right-click on some letter). It is minor issue, but still not 100% fixed. Image sizes are correct.
Problems:
Toolbar and all other icons are missing. Is there somewhere some guidelines how to get them back? Quick googling did not lead to any results. On 3.6.4 we just used stock icons, how to get them back on 3.18?
I am also getting frequent segfaults when closing transient top level windows, and frequent segfaults when doing dnd. I am on MacOSX 10.9.5. Backtraces looks like this, so I guess it is gtk+ issue:
Crashed Thread: 0 Dispatch queue: com.apple.main-thread
Exception Type: EXC_BAD_ACCESS (SIGSEGV)
Exception Codes: EXC_I386_GPFLT
Thread 0 Crashed:: Dispatch queue: com.apple.main-thread
0 libgobject-2.0.0.dylib 0x000000010f9492a2 g_type_check_instance + 50 (gtype.c:4134)
1 libgobject-2.0.0.dylib 0x000000010f93c8a8 g_signal_handlers_disconnect_matched + 56 (gsignal.c:2924)
2 libgtk-3.0.dylib 0x000000010ee27d51 gtk_window_unset_transient_for + 113
3 libgtk-3.0.dylib 0x000000010ee27aa1 gtk_window_set_transient_for + 593
4 libgtk-3.0.dylib 0x000000010ed97b33 gtk_tooltip_set_last_window + 419
5 libgtk-3.0.dylib 0x000000010ed96292 _gtk_tooltip_handle_event + 146
6 libgtk-3.0.dylib 0x000000010ebf4310 gtk_main_do_event + 2400
7 libgdk-3.0.dylib 0x000000010f30c1e1 _gdk_event_emit + 49
8 libgdk-3.0.dylib 0x000000010f348cb2 gdk_event_dispatch + 82
9 libglib-2.0.0.dylib 0x000000010f9e3984 g_main_dispatch + 452 (gmain.c:3142)
10 libglib-2.0.0.dylib 0x000000010f9e37a3 g_main_context_dispatch + 51 (gmain.c:3760)
11 libglib-2.0.0.dylib 0x000000010f9e3d77 g_main_context_iterate + 471 (gmain.c:3830)
12 libglib-2.0.0.dylib 0x000000010f9e428e g_main_loop_run + 590 (gmain.c:4022)
13 libgtk-3.0.dylib 0x000000010ebf37a6 gtk_main + 118
14 bluefish-bin 0x000000010e405ed1 main + 1425
15 bluefish-bin 0x000000010e401204 start + 52