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, 9 insertions, 0 deletions

diff --git a/ui-terminal.h b/ui-terminal.h
new file mode 100644
index 0000000..45286ab
--- /dev/null
+++ b/ui-terminal.h
@@ -0,0 +1,9 @@
+#ifndef UI_TERMINAL_H
+#define UI_TERMINAL_H
+
+#include "ui.h"
+
+Ui *ui_term_new(void);
+void ui_term_free(Ui*);
+
+#endif