diff options
Diffstat (limited to 'st.c')
| -rw-r--r-- | st.c | 37 |
1 files changed, 37 insertions, 0 deletions
@@ -140,6 +140,7 @@ static void tscrollup(int, int); static void tscrolldown(int, int); static void tsetattr(int *, int); static void tsetchar(Rune, Glyph *, int, int); +static void tsetdirt(int, int); static void tsetscroll(int, int); static void tswapscreen(void); static void tsetmode(int, int, int *, int); @@ -385,6 +386,42 @@ tlinelen(int y) } void +selstart(int col, int row, int snap) +{ + selclear(); + sel.mode = SEL_EMPTY; + sel.type = SEL_REGULAR; + sel.snap = snap; + sel.oe.x = sel.ob.x = col; + sel.oe.y = sel.ob.y = row; + selnormalize(); + + if (sel.snap != 0) + sel.mode = SEL_READY; + tsetdirt(sel.nb.y, sel.ne.y); +} + +void +selextend(int col, int row, int type) +{ + int oldey, oldex, oldsby, oldsey, oldtype; + oldey = sel.oe.y; + oldex = sel.oe.x; + oldsby = sel.nb.y; + oldsey = sel.ne.y; + oldtype = sel.type; + + sel.alt = IS_SET(MODE_ALTSCREEN); + sel.oe.x = col; + sel.oe.y = row; + selnormalize(); + sel.type = type; + + if (oldey != sel.oe.y || oldex != sel.oe.x || oldtype != sel.type) + tsetdirt(MIN(sel.nb.y, oldsby), MAX(sel.ne.y, oldsey)); +} + +void selnormalize(void) { int i; |