Add function for changing alpha (#47)

Co-authored-by: Stein Gunnar Bakkeby <bakkeby@gmail.com>
This commit is contained in:
Utkarsh Verma 2022-09-24 10:43:14 +02:00 committed by Bakkeby
parent 499b7fbc19
commit 2d74e49c4f
5 changed files with 51 additions and 0 deletions

32
patch/alpha.c Normal file
View file

@ -0,0 +1,32 @@
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();
fprintf(stderr, "changealpha %f\n", arg->f);
}
#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();
fprintf(stderr, "changealphaunfocused %f\n", arg->f);
}
#endif // ALPHA_FOCUS_HIGHLIGHT_PATCH