C++ (Cpp) gpencil_data_addnew Examples

Example #1

File: view3d_ruler.c Project: SuriyaaKudoIsc/blender-git

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;
}

Example #2

File: gpencil_edit.c Project: diosney/blender

/* add new layer - wrapper around API */
static int gp_layer_add_exec(bContext *C, wmOperator *op)
{
	bGPdata **gpd_ptr = gpencil_data_get_pointers(C, NULL);
	
	/* if there's no existing Grease-Pencil data there, add some */
	if (gpd_ptr == NULL) {
		BKE_report(op->reports, RPT_ERROR, "Nowhere for grease pencil data to go");
		return OPERATOR_CANCELLED;
	}
	if (*gpd_ptr == NULL)
		*gpd_ptr = gpencil_data_addnew(DATA_("GPencil"));
	
	/* add new layer now */
	gpencil_layer_addnew(*gpd_ptr, DATA_("GP_Layer"), 1);
	
	/* notifiers */
	WM_event_add_notifier(C, NC_GPENCIL | ND_DATA | NA_EDITED, NULL);
	
	return OPERATOR_FINISHED;
}

Example #3

File: gpencil_edit.c Project: diosney/blender

/* add new datablock - wrapper around API */
static int gp_data_add_exec(bContext *C, wmOperator *op)
{
	bGPdata **gpd_ptr = gpencil_data_get_pointers(C, NULL);
	
	if (gpd_ptr == NULL) {
		BKE_report(op->reports, RPT_ERROR, "Nowhere for grease pencil data to go");
		return OPERATOR_CANCELLED;
	}
	else {
		/* decrement user count and add new datablock */
		bGPdata *gpd = (*gpd_ptr);
		
		id_us_min(&gpd->id);
		*gpd_ptr = gpencil_data_addnew(DATA_("GPencil"));
	}
	
	/* notifiers */
	WM_event_add_notifier(C, NC_GPENCIL | ND_DATA | NA_EDITED, NULL);
	
	return OPERATOR_FINISHED;
}