1 files changed, 30 insertions, 0 deletions
diff --git a/archive/st/patch/alpha.c b/archive/st/patch/alpha.c
new file mode 100644
index 0000000..146bf4b
--- /dev/null
+++ b/archive/st/patch/alpha.c
@@ -0,0 +1,30 @@
+float
+clamp(float value, float lower, float upper) {
+	if (value < lower)
+		return lower;
+	if (value > upper)
+		return upper;
+	return value;
+}
+
+void
+changealpha(const Arg *arg)
+{
+	if ((alpha > 0 && arg->f < 0) || (alpha < 1 && arg->f > 0))
+		alpha += arg->f;
+	alpha = clamp(alpha, 0.0, 1.0);
+	xloadcols();
+	redraw();
+}
+
+#if ALPHA_FOCUS_HIGHLIGHT_PATCH
+void
+changealphaunfocused(const Arg *arg)
+{
+	if ((alphaUnfocused > 0 && arg->f < 0) || (alphaUnfocused < 1 && arg->f > 0))
+		alphaUnfocused += arg->f;
+	alphaUnfocused = clamp(alphaUnfocused, 0.0, 1.0);
+	xloadcols();
+	redraw();
+}
+#endif // ALPHA_FOCUS_HIGHLIGHT_PATCH