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rootston: remove broken rotated pointer constraint handling

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emersion 2018-09-27 10:42:35 +02:00
parent dac4f8e19f
commit 792b1f5cbf
1 changed files with 9 additions and 36 deletions
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45
rootston/cursor.c
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@ -314,19 +314,14 @@ void roots_cursor_handle_motion(struct roots_cursor *cursor,
struct roots_view *view = cursor->pointer_view->view;
assert(view);
double center_x = view->x + view->width / 2.;
double center_y = view->y + view->height / 2.;
double lx1 = cursor->cursor->x;
double ly1 = cursor->cursor->y;
double lx2 = lx1 + dx;
double ly2 = ly1 + dy;
// Optimization for most common case.
// This also makes sure that we don't encounter
// precision bugs in the most common case.
// TODO: handle rotated views
if (view->rotation == 0.0) {
double lx1 = cursor->cursor->x;
double ly1 = cursor->cursor->y;
double lx2 = lx1 + dx;
double ly2 = ly1 + dy;
double sx1 = lx1 - view->x;
double sy1 = ly1 - view->y;
@ -334,35 +329,13 @@ void roots_cursor_handle_motion(struct roots_cursor *cursor,
double sy2 = ly2 - view->y;
double sx2_confined, sy2_confined;
if (!wlr_region_confine(&cursor->confine, sx1, sy1, sx2, sy2, &sx2_confined, &sy2_confined)) {
if (!wlr_region_confine(&cursor->confine, sx1, sy1, sx2, sy2,
&sx2_confined, &sy2_confined)) {
return;
}
dx = sx2_confined - sx1;
dy = sy2_confined - sy1;
} else {
assert(false);
double c = cos(view->rotation);
double s = sin(view->rotation);
double sx1 = c * (lx1 - center_x) - s * (ly1 - center_y) + view->width / 2.;
double sy1 = s * (lx1 - center_x) + c * (ly1 - center_y) + view->height / 2.;
double sx2 = c * (lx2 - center_x) - s * (ly2 - center_y) + view->width / 2.;
double sy2 = s * (lx2 - center_x) + c * (ly2 - center_y) + view->height / 2.;
double sx2_confined, sy2_confined;
if (!wlr_region_confine(&cursor->confine, sx1, sy1, sx2, sy2, &sx2_confined, &sy2_confined)) {
return;
}
// avoid NaNs
double fraction = (sx2 - sx1) > (sy2 - sy1) ?
(sx2_confined - sx1) / (sx2 - sx1) :
(sy2_confined - sy1) / (sy2 - sy1);
dx *= fraction;
dy *= fraction;
}
}