From bcb5d3adbe57ead05a829e5144c2ba1dc465865f Mon Sep 17 00:00:00 2001 From: "Devin J. Pohly" Date: Wed, 21 Feb 2018 23:29:41 -0600 Subject: Move terminal-related selection logic into st.c The front-end determines information about mouse clicks and motion, and the terminal handles the actual selection start/extend/dirty logic by row and column. While we're in the neighborhood, we'll also rename getbuttoninfo() to mousesel() which is, at least, less wrong. Signed-off-by: Devin J. Pohly --- st.c | 37 +++++++++++++++++++++++++++++++++++++ 1 file changed, 37 insertions(+) (limited to 'st.c') diff --git a/st.c b/st.c index ea0726c..21cba9e 100644 --- a/st.c +++ b/st.c @@ -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); @@ -384,6 +385,42 @@ tlinelen(int y) return i; } +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) { -- cgit v1.2.1