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resistance: support negative strengths to indicate attractive snapping

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Andrew J. Hesford 2024-01-21 12:56:37 -05:00 • committed by Andrew J. Hesford
parent 57ea197e6c
commit 4181bb5335
2 changed files with 41 additions and 22 deletions
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36
src/resistance.c
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@ -12,20 +12,28 @@ static void
is_within_resistance_range(struct border view, struct border target,
struct border other, struct border *flags, int strength)
{
if (view.left >= other.left && target.left < other.left
&& target.left >= other.left - strength) {
flags->left = 1;
} else if (view.right <= other.right && target.right > other.right
&& target.right <= other.right + strength) {
flags->right = 1;
if (view.left >= other.left) {
const int lo = other.left - abs(strength);
const int hi = other.left - MIN(strength, 0);
flags->left = target.left >= lo && target.left < hi;
}
if (view.top >= other.top && target.top < other.top
&& target.top >= other.top - strength) {
flags->top = 1;
} else if (view.bottom <= other.bottom && target.bottom > other.bottom
&& target.bottom <= other.bottom + strength) {
flags->bottom = 1;
if (!flags->left && view.right <= other.right) {
const int lo = other.right + MIN(strength, 0);
const int hi = other.right + abs(strength);
flags->right = target.right > lo && target.right <= hi;
}
if (view.top >= other.top) {
const int lo = other.top - abs(strength);
const int hi = other.top - MIN(strength, 0);
flags->top = target.top >= lo && target.top < hi;
}
if (!flags->top && view.bottom <= other.bottom) {
const int lo = other.bottom + MIN(strength, 0);
const int hi = other.bottom + abs(strength);
flags->bottom = target.bottom > lo && target.bottom <= hi;
}
}
@ -75,7 +83,7 @@ static void
find_neighbor_edges(struct view *view, struct wlr_box new_geom,
struct border *next_edges, bool move)
{
if (rc.window_edge_strength <= 0) {
if (rc.window_edge_strength == 0) {
return;
}
@ -118,7 +126,7 @@ static void
find_screen_edges(struct view *view, struct wlr_box new_geom,
struct border *next_edges, bool move)
{
if (rc.screen_edge_strength <= 0) {
if (rc.screen_edge_strength == 0) {
return;
}