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Review patch
[PATCH left] scroll: Don't allow scrolling too far
---
left.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/left.c b/left.c
index 8de7130..87e1d44 100644
--- a/left.c
+++ b/left.c
@@ -325,6 +325,7 @@ error(char *msg, const char *err)
void
setscroll(int v)
{
+ v = clamp(v, 0, getrow(doc.len) - VER);
if(v >= 0) {
sel.scroll = v;
redraw(pixels);
--
2.29.2
[PATCH left] Mouse Wheel: enable scrolling and move cursor with CTRL+Scroll
---
left.c | 13 +++++++++++++
1 file changed, 13 insertions(+)
diff --git a/left.c b/left.c
index 87e1d44..781122f 100644
--- a/left.c
+++ b/left.c
@@ -510,6 +510,18 @@ domouse(SDL_Event *event)
}
}
+void
+dowheel(SDL_Event *event)
+{
+ int ctrl = SDL_GetModState() & (KMOD_LCTRL | KMOD_RCTRL);
+ if(ctrl)
+ setselection(getcell(
+ getcol(sel.from),getrow(sel.from)-event->wheel.y
+ ), -1);
+ else
+ setscroll(sel.scroll - event->wheel.y);
+}
+
void
dokey(SDL_Event *event)
{
@@ -632,6 +644,7 @@ main(int argc, char *argv[])
case SDL_MOUSEBUTTONUP:
case SDL_MOUSEBUTTONDOWN:
case SDL_MOUSEMOTION: domouse(&event); break;
+ case SDL_MOUSEWHEEL: dowheel(&event); break;
case SDL_TEXTINPUT: dotext(&event); break;
case SDL_KEYDOWN: dokey(&event); break;
case SDL_WINDOWEVENT:
--
2.29.2