Restructure display code

Use pull instead of push based model for display code. Previously view.c
was calling into the ui frontend code, with the new scheme this switches
around: the necessary data is fetched by the ui as necessary.

The UI independent display code is moved out of view.c/ui-curses.c into
vis.c. The cell styles are now directly embedded into the Cell struct.

New UI styles are introduced for:

 - status bar (focused / non-focused)
 - info message
 - window separator
 - EOF symbol

You will have to update your color themes.

The terminal output code is further abstracted into a generic ui-terminal.c
part which keeps track of the whole in-memory cell matrix and #includes
ui-terminal-curses.c for the actual terminal output. This architecture
currently assumes that there are no overlapping windows. It will also
allow non-curses based terminal user interfaces.

1 files changed, 1 insertions, 1 deletions

diff --git a/vis-core.h b/vis-core.h
index 4350794..0739e55 100644
--- a/vis-core.h
+++ b/vis-core.h
@@ -147,7 +147,6 @@ struct Win {
 	Mode modes[VIS_MODE_INVALID]; /* overlay mods used for per window key bindings */
 	Win *parent;            /* window which was active when showing the command prompt */
 	Mode *parent_mode;      /* mode which was active when showing the command prompt */
-	ViewEvent event;        /* callbacks from view.[ch] */
 	char *lexer_name;       /* corresponds to filename in lexers/ subdirectory */
 	size_t horizon;         /* max bytes to consider for syntax coloring before viewport */
 	Win *prev, *next;       /* neighbouring windows */
@@ -195,6 +194,7 @@ struct Vis {
 	volatile sig_atomic_t cancel_filter; /* abort external command/filter (SIGINT occured) */
 	volatile sig_atomic_t sigbus;        /* one of the memory mapped region became unavailable (SIGBUS) */
 	volatile sig_atomic_t need_resize;   /* need to resize UI (SIGWINCH occured) */
+	volatile sig_atomic_t resume;        /* need to resume UI (SIGCONT occured) */
 	volatile sig_atomic_t terminate;     /* need to terminate we were being killed by SIGTERM */
 	sigjmp_buf sigbus_jmpbuf;            /* used to jump back to a known good state in the mainloop after (SIGBUS) */
 	Map *actions;                        /* registered editor actions / special keys commands */