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, 5 insertions, 0 deletions

diff --git a/vis-lua.c b/vis-lua.c
index 0590f55..47b1dcd 100644
--- a/vis-lua.c
+++ b/vis-lua.c
@@ -2430,6 +2430,11 @@ void vis_lua_init(Vis *vis) {
 		{ UI_STYLE_SELECTION,      "STYLE_SELECTION"      },
 		{ UI_STYLE_LINENUMBER,     "STYLE_LINENUMBER"     },
 		{ UI_STYLE_COLOR_COLUMN,   "STYLE_COLOR_COLUMN"   },
+		{ UI_STYLE_STATUS,         "STYLE_STATUS"         },
+		{ UI_STYLE_STATUS_FOCUSED, "STYLE_STATUS_FOCUSED" },
+		{ UI_STYLE_SEPARATOR,      "STYLE_SEPARATOR"      },
+		{ UI_STYLE_INFO,           "STYLE_INFO"           },
+		{ UI_STYLE_EOF,            "STYLE_EOF"            },
 	};
 
 	for (size_t i = 0; i < LENGTH(styles); i++) {