vis: add infrastructure to support multiple cursors/selections

This cleans up the existing selection handling code and adds the
necessary bits to eventually support multiple cursors/selections.

The cursor position is kept track of using marks, which means
retrieving the cursor position is no longer a constant time operation.
Furthermore the terminal cursor is no longer used, instead the whole
window is redrawn after every cursor movement.

1 files changed, 0 insertions, 1 deletions

diff --git a/ui.h b/ui.h
index 1a65184..4f61ec1 100644
--- a/ui.h
+++ b/ui.h
@@ -54,7 +54,6 @@ struct UiWin {
 	void (*draw)(UiWin*);
 	void (*draw_text)(UiWin*, const Line*);
 	void (*draw_status)(UiWin*);
-	void (*cursor_to)(UiWin*, int x, int y);
 	void (*reload)(UiWin*, File*);
 	void (*options)(UiWin*, enum UiOption);
 };