static bool view3d_ruler_to_gpencil(bContext *C, RulerInfo *ruler_info)
{
Scene *scene = CTX_data_scene(C);
bGPDlayer *gpl;
bGPDframe *gpf;
bGPDstroke *gps;
RulerItem *ruler_item;
const char *ruler_name = RULER_ID;
bool changed = false;
if (scene->gpd == NULL) {
scene->gpd = gpencil_data_addnew("GPencil");
}
gpl = BLI_findstring(&scene->gpd->layers, ruler_name, offsetof(bGPDlayer, info));
if (gpl == NULL) {
gpl = gpencil_layer_addnew(scene->gpd, ruler_name, false);
gpl->thickness = 1;
gpl->flag |= GP_LAYER_HIDE;
}
gpf = gpencil_layer_getframe(gpl, CFRA, true);
free_gpencil_strokes(gpf);
for (ruler_item = ruler_info->items.first; ruler_item; ruler_item = ruler_item->next) {
bGPDspoint *pt;
int j;
/* allocate memory for a new stroke */
gps = MEM_callocN(sizeof(bGPDstroke), "gp_stroke");
if (ruler_item->flag & RULERITEM_USE_ANGLE) {
gps->totpoints = 3;
pt = gps->points = MEM_callocN(sizeof(bGPDspoint) * gps->totpoints, "gp_stroke_points");
for (j = 0; j < 3; j++) {
copy_v3_v3(&pt->x, ruler_item->co[j]);
pt->pressure = 1.0f;
pt++;
}
}
else {
gps->totpoints = 2;
pt = gps->points = MEM_callocN(sizeof(bGPDspoint) * gps->totpoints, "gp_stroke_points");
for (j = 0; j < 3; j += 2) {
copy_v3_v3(&pt->x, ruler_item->co[j]);
pt->pressure = 1.0f;
pt++;
}
}
gps->flag = GP_STROKE_3DSPACE;
BLI_addtail(&gpf->strokes, gps);
changed = true;
}
return changed;
}
/* delete the given frame from a layer */
void gpencil_layer_delframe(bGPDlayer *gpl, bGPDframe *gpf)
{
/* error checking */
if (ELEM(NULL, gpl, gpf))
return;
/* free the frame and its data */
free_gpencil_strokes(gpf);
BLI_freelinkN(&gpl->frames, gpf);
gpl->actframe = NULL;
}
/* delete the given frame from a layer */
bool gpencil_layer_delframe(bGPDlayer *gpl, bGPDframe *gpf)
{
bool changed = false;
/* error checking */
if (ELEM(NULL, gpl, gpf))
return false;
/* free the frame and its data */
changed = free_gpencil_strokes(gpf);
BLI_freelinkN(&gpl->frames, gpf);
gpl->actframe = NULL;
return changed;
}
/* Free all of a gp-layer's frames */
void free_gpencil_frames(bGPDlayer *gpl)
{
bGPDframe *gpf, *gpfn;
/* error checking */
if (gpl == NULL) return;
/* free frames */
for (gpf = gpl->frames.first; gpf; gpf = gpfn) {
gpfn = gpf->next;
/* free strokes and their associated memory */
free_gpencil_strokes(gpf);
BLI_freelinkN(&gpl->frames, gpf);
}
gpl->actframe = NULL;
}
/* delete the given frame from a layer */
bool gpencil_layer_delframe(bGPDlayer *gpl, bGPDframe *gpf)
{
bool changed = false;
/* error checking */
if (ELEM(NULL, gpl, gpf))
return false;
/* if this frame was active, make the previous frame active instead
* since it's tricky to set active frame otherwise
*/
if (gpl->actframe == gpf)
gpl->actframe = gpf->prev;
else
gpl->actframe = NULL;
/* free the frame and its data */
changed = free_gpencil_strokes(gpf);
BLI_freelinkN(&gpl->frames, gpf);
return changed;
}
static void rna_GPencil_frame_clear(bGPDframe *frame)
{
free_gpencil_strokes(frame);
WM_main_add_notifier(NC_GPENCIL | ND_DATA | NA_EDITED, NULL);
}