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eeshow/gui/aoi.c (aoi_hover): also indicate from which direction we enter

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This commit is contained in:
Werner Almesberger 2016-08-21 23:02:28 -03:00
parent c6498a8cc1
commit b844bbfed2
1 changed files with 16 additions and 7 deletions
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23
eeshow/gui/aoi.c
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@ -57,6 +57,14 @@ static bool in_aoi(const struct aoi *aoi, int x, int y)
}
static bool hover_d(const struct aoi *aoi, bool on,int x, int y)
{
return aoi->hover(aoi->user, on,
x < aoi->x ? -1 : x >= aoi->x + aoi->w ? 1 : 0,
y < aoi->y ? -1 : y >= aoi->y + aoi->h ? 1 : 0);
}
/*
* We need a pointer to the anchor of the AoI list here because dehovering may
* delete the AoI *aois points to.
@ -67,25 +75,26 @@ static bool in_aoi(const struct aoi *aoi, int x, int y)
bool aoi_hover(struct aoi *const *aois, int x, int y)
{
static int last_x = 0;
static int last_y = 0;
const struct aoi *aoi;
if (hovering) {
if (in_aoi(hovering, x, y))
return 1;
aoi = hovering;
aoi->hover(aoi->user, 0,
x < aoi->x ? -1 : x >= aoi->x + aoi->w ? 1 : 0,
y < aoi->y ? -1 : y >= aoi->y + aoi->h ? 1 : 0);
hover_d(hovering, 0, x, y);
hovering = NULL;
}
for (aoi = *aois; aoi; aoi = aoi->next)
if (aoi->hover && in_aoi(aoi, x, y) &&
aoi->hover(aoi->user, 1, 0, 0)) {
hover_d(aoi, 1, last_x, last_y)) {
hovering = aoi;
return 1;
break;
}
return 0;
last_x = x;
last_y = y;
return aoi;
}