diff options
| -rw-r--r-- | README.md | 4 | ||||
| -rw-r--r-- | view.c | 17 | ||||
| -rw-r--r-- | view.h | 2 | ||||
| -rw-r--r-- | vis-cmds.c | 5 |
4 files changed, 24 insertions, 4 deletions
@@ -441,6 +441,10 @@ Operators can be forced to work line wise by specifying `V`. highlight the given column + horizon number default 32768 (32K) + + how far back the lexer will look to synchronize parsing + theme name default dark-16.lua | solarized.lua (16 | 256 color) use the given theme / color scheme for syntax highlighting @@ -90,6 +90,8 @@ struct View { lua_State *lua; /* lua state used for syntax highlighting */ int cursor_generation; /* used to filter out newly created cursors during iteration */ char *lexer_name; + size_t horizon; /* maximal number of bytes to consider for syntax highlighting + * before the visible area */ bool need_update; /* whether view has been redrawn */ bool large_file; /* optimize for displaying large files */ int colorcolumn; @@ -137,11 +139,9 @@ static void view_syntax_color(View *view) { if (lua_isnil(L, -1)) return; - /* maximal number of bytes to consider for syntax highlighting before - * the visible area */ - const size_t lexer_before_max = 16384; /* absolute position to start syntax highlighting */ - const size_t lexer_start = view->start >= lexer_before_max ? view->start - lexer_before_max : 0; + const size_t lexer_start = view->start >= view->horizon ? + view->start - view->horizon : 0; /* number of bytes used for syntax highlighting before visible are */ size_t lexer_before = view->start - lexer_start; /* number of bytes to read in one go */ @@ -753,6 +753,7 @@ View *view_new(Text *text, lua_State *lua) { view->text = text; view->lua = lua; view->tabwidth = 8; + view->horizon = 1 << 15; view_options_set(view, 0); if (!view_resize(view, 1, 1)) { @@ -1052,6 +1053,14 @@ int view_colorcolumn_get(View *view) { return view->colorcolumn; } +void view_horizon_set(View *view, size_t bytes) { + view->horizon = bytes; +} + +size_t view_horizon_get(View *view) { + return view->horizon; +} + size_t view_screenline_goto(View *view, int n) { size_t pos = view->start; for (Line *line = view->topline; --n > 0 && line != view->lastline; line = line->next) @@ -100,6 +100,8 @@ void view_options_set(View*, enum UiOption options); enum UiOption view_options_get(View*); void view_colorcolumn_set(View*, int col); int view_colorcolumn_get(View*); +void view_horizon_set(View*, size_t bytes); +size_t view_horizon_get(View*); /* A view can manage multiple cursors, one of which (the main cursor) is always * placed within the visible viewport. All functions named view_cursor_* operate @@ -59,6 +59,7 @@ static bool cmd_set(Vis *vis, Win *win, Command *cmd, const char *argv[], Cursor OPTION_CURSOR_LINE, OPTION_THEME, OPTION_COLOR_COLUMN, + OPTION_HORIZON, }; /* definitions have to be in the same order as the enum above */ @@ -73,6 +74,7 @@ static bool cmd_set(Vis *vis, Win *win, Command *cmd, const char *argv[], Cursor [OPTION_CURSOR_LINE] = { { "cursorline", "cul" }, OPTION_TYPE_BOOL }, [OPTION_THEME] = { { "theme" }, OPTION_TYPE_STRING }, [OPTION_COLOR_COLUMN] = { { "colorcolumn", "cc" }, OPTION_TYPE_NUMBER }, + [OPTION_HORIZON] = { { "horizon" }, OPTION_TYPE_UNSIGNED }, }; if (!vis->options) { @@ -242,6 +244,9 @@ static bool cmd_set(Vis *vis, Win *win, Command *cmd, const char *argv[], Cursor case OPTION_COLOR_COLUMN: view_colorcolumn_set(win->view, arg.i); break; + case OPTION_HORIZON: + view_horizon_set(win->view, arg.u); + break; } return true; |