diff options
author | Philipp Oeser <info@graphics-engineer.com> | 2021-05-14 14:21:10 +0300 |
---|---|---|
committer | Philipp Oeser <info@graphics-engineer.com> | 2021-05-14 18:16:05 +0300 |
commit | c3e13d5a2b8e9ada467850b4629dc4f228a2b2b8 (patch) | |
tree | 44fe7f7515615020fbe0fb936f30131f5d9103a3 /source/blender | |
parent | d19d79c5a644914564902c685f32e94e1b6449bb (diff) |
GPencil: fix separate points/strokes freezing with empty selection
Code would still create an object (without setting up materials), code
for removing unused material slots would then freeze.
Now return/cancel early in case of empty selection.
This came up in T88269 [which is still not fully fixed, transforming
curve edit points clear their GP_STROKE_SELECT flag which now results in
the early exit, should be looked at separately]
Maniphest Tasks: T88269
Differential Revision: https://developer.blender.org/D11252
Diffstat (limited to 'source/blender')
-rw-r--r-- | source/blender/editors/gpencil/gpencil_edit.c | 21 | ||||
-rw-r--r-- | source/blender/editors/gpencil/gpencil_utils.c | 32 | ||||
-rw-r--r-- | source/blender/editors/include/ED_gpencil.h | 2 |
3 files changed, 53 insertions, 2 deletions
diff --git a/source/blender/editors/gpencil/gpencil_edit.c b/source/blender/editors/gpencil/gpencil_edit.c index d388e11dc8c..66d50e2fd12 100644 --- a/source/blender/editors/gpencil/gpencil_edit.c +++ b/source/blender/editors/gpencil/gpencil_edit.c @@ -4520,6 +4520,9 @@ static int gpencil_stroke_separate_exec(bContext *C, wmOperator *op) eGP_SeparateModes mode = RNA_enum_get(op->ptr, "mode"); + const bool is_multiedit = (bool)GPENCIL_MULTIEDIT_SESSIONS_ON(gpd_src); + const bool is_curve_edit = (bool)GPENCIL_CURVE_EDIT_SESSIONS_ON(gpd_src); + /* sanity checks */ if (ELEM(NULL, gpd_src)) { return OPERATOR_CANCELLED; @@ -4530,8 +4533,22 @@ static int gpencil_stroke_separate_exec(bContext *C, wmOperator *op) return OPERATOR_CANCELLED; } - const bool is_multiedit = (bool)GPENCIL_MULTIEDIT_SESSIONS_ON(gpd_src); - const bool is_curve_edit = (bool)GPENCIL_CURVE_EDIT_SESSIONS_ON(gpd_src); + /* Cancel if nothing selected. */ + if (ELEM(mode, GP_SEPARATE_POINT, GP_SEPARATE_STROKE)) { + bool has_selected = false; + CTX_DATA_BEGIN (C, bGPDlayer *, gpl, editable_gpencil_layers) { + if (ED_gpencil_layer_has_selected_stroke(gpl, is_multiedit)) { + has_selected = true; + break; + } + } + CTX_DATA_END; + + if (!has_selected) { + BKE_report(op->reports, RPT_ERROR, "Nothing selected"); + return OPERATOR_CANCELLED; + } + } /* Create a new object. */ /* Take into account user preferences for duplicating actions. */ diff --git a/source/blender/editors/gpencil/gpencil_utils.c b/source/blender/editors/gpencil/gpencil_utils.c index 8d42024a518..9fba2ce5902 100644 --- a/source/blender/editors/gpencil/gpencil_utils.c +++ b/source/blender/editors/gpencil/gpencil_utils.c @@ -543,6 +543,38 @@ bool gpencil_stroke_inside_circle(const float mval[2], int rad, int x0, int y0, } /* ******************************************************** */ +/* Selection Validity Testing */ + +bool ED_gpencil_frame_has_selected_stroke(const bGPDframe *gpf) +{ + LISTBASE_FOREACH (bGPDstroke *, gps, &gpf->strokes) { + if (gps->flag & GP_STROKE_SELECT) { + return true; + } + } + + return false; +} + +bool ED_gpencil_layer_has_selected_stroke(const bGPDlayer *gpl, const bool is_multiedit) +{ + bGPDframe *init_gpf = (is_multiedit) ? gpl->frames.first : gpl->actframe; + for (bGPDframe *gpf = init_gpf; gpf; gpf = gpf->next) { + if ((gpf == gpl->actframe) || ((gpf->flag & GP_FRAME_SELECT) && (is_multiedit))) { + if (ED_gpencil_frame_has_selected_stroke(gpf)) { + return true; + } + } + /* If not multiedit, exit loop. */ + if (!is_multiedit) { + break; + } + } + + return false; +} + +/* ******************************************************** */ /* Stroke Validity Testing */ /* Check whether given stroke can be edited given the supplied context */ diff --git a/source/blender/editors/include/ED_gpencil.h b/source/blender/editors/include/ED_gpencil.h index e9ac21f60cf..d4ff374dc38 100644 --- a/source/blender/editors/include/ED_gpencil.h +++ b/source/blender/editors/include/ED_gpencil.h @@ -144,6 +144,8 @@ bool ED_gpencil_data_owner_is_annotation(struct PointerRNA *owner_ptr); bool ED_gpencil_has_keyframe_v3d(struct Scene *scene, struct Object *ob, int cfra); /* ----------- Stroke Editing Utilities ---------------- */ +bool ED_gpencil_frame_has_selected_stroke(const struct bGPDframe *gpf); +bool ED_gpencil_layer_has_selected_stroke(const struct bGPDlayer *gpl, const bool is_multiedit); bool ED_gpencil_stroke_can_use_direct(const struct ScrArea *area, const struct bGPDstroke *gps); bool ED_gpencil_stroke_can_use(const struct bContext *C, const struct bGPDstroke *gps); |