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Resolve T45301 by adding option for old behavior 

Some users really liked previous behavior,
so making it an option.

Cursor Lock Adjustment can be disabled to give something close to
2.4x behavior of cursor locking.

When lock-adjustment is disabled placing the cursor the view.
This avoids the issue reported in T40353
where the cursor could get *lost*.
This commit is contained in:
Campbell Barton 2017-07-29 01:35:07 +10:00
parent 2eb2655181
commit e038830650
Notes: blender-bot 2023-02-14 08:55:43 +01:00 
Referenced by issue #45301, Lock wiew to cursor not working
1 changed files with 13 additions and 6 deletions
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19
source/blender/editors/space_view3d/view3d_edit.c
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@ -4753,13 +4753,20 @@ void ED_view3d_cursor3d_update(bContext *C, const int mval[2])
ARegion *ar = CTX_wm_region(C);
RegionView3D *rv3d = ar->regiondata;
float co_curr[2], co_prev[2];
if (U.uiflag & USER_LOCK_CURSOR_ADJUST) {
if ((ED_view3d_project_float_global(ar, fp_prev, co_prev, V3D_PROJ_TEST_NOP) == V3D_PROJ_RET_OK) &&
(ED_view3d_project_float_global(ar, fp_curr, co_curr, V3D_PROJ_TEST_NOP) == V3D_PROJ_RET_OK))
{
rv3d->ofs_lock[0] += (co_curr[0] - co_prev[0]) / (ar->winx * 0.5f);
rv3d->ofs_lock[1] += (co_curr[1] - co_prev[1]) / (ar->winy * 0.5f);
float co_curr[2], co_prev[2];
if ((ED_view3d_project_float_global(ar, fp_prev, co_prev, V3D_PROJ_TEST_NOP) == V3D_PROJ_RET_OK) &&
(ED_view3d_project_float_global(ar, fp_curr, co_curr, V3D_PROJ_TEST_NOP) == V3D_PROJ_RET_OK))
{
rv3d->ofs_lock[0] += (co_curr[0] - co_prev[0]) / (ar->winx * 0.5f);
rv3d->ofs_lock[1] += (co_curr[1] - co_prev[1]) / (ar->winy * 0.5f);
}
}
else {
/* Cursor may be outside of the view, prevent it getting 'lost', see: T40353 & T45301 */
zero_v2(rv3d->ofs_lock);
}
}