C++ RNA_struct_property_is_set函数代码示例

void initSnapping(TransInfo *t, wmOperator *op)
{
	ToolSettings *ts = t->settings;
	short snap_target = t->settings->snap_target;
	
	resetSnapping(t);
	
	/* if snap property exists */
	if (op && RNA_struct_find_property(op->ptr, "snap") && RNA_struct_property_is_set(op->ptr, "snap")) {
		if (RNA_boolean_get(op->ptr, "snap")) {
			t->modifiers |= MOD_SNAP;

			if (RNA_struct_property_is_set(op->ptr, "snap_target")) {
				snap_target = RNA_enum_get(op->ptr, "snap_target");
			}
			
			if (RNA_struct_property_is_set(op->ptr, "snap_point")) {
				RNA_float_get_array(op->ptr, "snap_point", t->tsnap.snapPoint);
				t->tsnap.status |= SNAP_FORCED | POINT_INIT;
			}
			
			/* snap align only defined in specific cases */
			if (RNA_struct_find_property(op->ptr, "snap_align")) {
				t->tsnap.align = RNA_boolean_get(op->ptr, "snap_align");
				RNA_float_get_array(op->ptr, "snap_normal", t->tsnap.snapNormal);
				normalize_v3(t->tsnap.snapNormal);
			}

			if (RNA_struct_find_property(op->ptr, "use_snap_project")) {
				t->tsnap.project = RNA_boolean_get(op->ptr, "use_snap_project");
			}

			if (RNA_struct_find_property(op->ptr, "use_snap_self")) {
				t->tsnap.snap_self = RNA_boolean_get(op->ptr, "use_snap_self");
			}
		}
	}
	/* use scene defaults only when transform is modal */
	else if (t->flag & T_MODAL) {
		if (ELEM(t->spacetype, SPACE_VIEW3D, SPACE_IMAGE, SPACE_NODE)) {
			if (ts->snap_flag & SCE_SNAP) {
				t->modifiers |= MOD_SNAP;
			}

			t->tsnap.align = ((t->settings->snap_flag & SCE_SNAP_ROTATE) != 0);
			t->tsnap.project = ((t->settings->snap_flag & SCE_SNAP_PROJECT) != 0);
			t->tsnap.snap_self = !((t->settings->snap_flag & SCE_SNAP_NO_SELF) != 0);
			t->tsnap.peel = ((t->settings->snap_flag & SCE_SNAP_PROJECT) != 0);
		}

		/* for now only 3d view (others can be added if we want) */
		if (t->spacetype == SPACE_VIEW3D) {
			t->tsnap.snap_spatial_grid = ((t->settings->snap_flag & SCE_SNAP_ABS_GRID) != 0);
		}
	}
	
	t->tsnap.target = snap_target;

	initSnappingMode(t);
}

static int workspace_append_activate_exec(bContext *C, wmOperator *op)
{
  Main *bmain = CTX_data_main(C);
  char idname[MAX_ID_NAME - 2], filepath[FILE_MAX];

  if (!RNA_struct_property_is_set(op->ptr, "idname") ||
      !RNA_struct_property_is_set(op->ptr, "filepath")) {
    return OPERATOR_CANCELLED;
  }
  RNA_string_get(op->ptr, "idname", idname);
  RNA_string_get(op->ptr, "filepath", filepath);

  if (workspace_append(C, filepath, idname) != OPERATOR_CANCELLED) {
    WorkSpace *appended_workspace = BLI_findstring(
        &bmain->workspaces, idname, offsetof(ID, name) + 2);
    BLI_assert(appended_workspace != NULL);

    if (appended_workspace) {
      /* Reorder to last position. */
      BKE_id_reorder(&bmain->workspaces, &appended_workspace->id, NULL, true);

      /* Changing workspace changes context. Do delayed! */
      WM_event_add_notifier(C, NC_SCREEN | ND_WORKSPACE_SET, appended_workspace);

      return OPERATOR_FINISHED;
    }
  }

  return OPERATOR_CANCELLED;
}

static void screen_render_scene_layer_set(wmOperator *op, Main *mainp, Scene **scene, SceneRenderLayer **srl)
{
	/* single layer re-render */
	if (RNA_struct_property_is_set(op->ptr, "scene")) {
		Scene *scn;
		char scene_name[MAX_ID_NAME - 2];

		RNA_string_get(op->ptr, "scene", scene_name);
		scn = (Scene *)BLI_findstring(&mainp->scene, scene_name, offsetof(ID, name) + 2);
		
		if (scn) {
			/* camera switch wont have updated */
			scn->r.cfra = (*scene)->r.cfra;
			BKE_scene_camera_switch_update(scn);

			*scene = scn;
		}
	}

	if (RNA_struct_property_is_set(op->ptr, "layer")) {
		SceneRenderLayer *rl;
		char rl_name[RE_MAXNAME];

		RNA_string_get(op->ptr, "layer", rl_name);
		rl = (SceneRenderLayer *)BLI_findstring(&(*scene)->r.layers, rl_name, offsetof(SceneRenderLayer, name));
		
		if (rl)
			*srl = rl;
	}
}

static int wm_alembic_export_invoke(bContext *C, wmOperator *op, const wmEvent *event)
{
  if (!RNA_struct_property_is_set(op->ptr, "as_background_job")) {
    RNA_boolean_set(op->ptr, "as_background_job", true);
  }

  RNA_boolean_set(op->ptr, "init_scene_frame_range", true);

  if (!RNA_struct_property_is_set(op->ptr, "filepath")) {
    Main *bmain = CTX_data_main(C);
    char filepath[FILE_MAX];

    if (BKE_main_blendfile_path(bmain)[0] == '\0') {
      BLI_strncpy(filepath, "untitled", sizeof(filepath));
    }
    else {
      BLI_strncpy(filepath, BKE_main_blendfile_path(bmain), sizeof(filepath));
    }

    BLI_path_extension_replace(filepath, sizeof(filepath), ".abc");
    RNA_string_set(op->ptr, "filepath", filepath);
  }

  WM_event_add_fileselect(C, op);

  return OPERATOR_RUNNING_MODAL;

  UNUSED_VARS(event);
}

void ED_view3d_operator_properties_viewmat_set(bContext *C, wmOperator *op)
{
	ARegion *ar = CTX_wm_region(C);
	RegionView3D *rv3d = ED_view3d_context_rv3d(C);

	if (!RNA_struct_property_is_set(op->ptr, "region_width"))
		RNA_int_set(op->ptr, "region_width", ar->winx);

	if (!RNA_struct_property_is_set(op->ptr, "region_height"))
		RNA_int_set(op->ptr, "region_height", ar->winy);

	if (!RNA_struct_property_is_set(op->ptr, "perspective_matrix"))
		RNA_float_set_array(op->ptr, "perspective_matrix", (float *)rv3d->persmat);
}

static int rigidbody_world_export_invoke(bContext *C, wmOperator *op, const wmEvent *UNUSED(event))
{
	if (!RNA_struct_property_is_set(op->ptr, "relative_path"))
		RNA_boolean_set(op->ptr, "relative_path", (U.flag & USER_RELPATHS) != 0);

	if (RNA_struct_property_is_set(op->ptr, "filepath"))
		return rigidbody_world_export_exec(C, op);

	// TODO: use the actual rigidbody world's name + .bullet instead of this temp crap
	RNA_string_set(op->ptr, "filepath", "rigidbodyworld_export.bullet");
	WM_event_add_fileselect(C, op); 

	return OPERATOR_RUNNING_MODAL;
}

/* op->invoke, opens fileselect if path property not set, otherwise executes */
static int wm_alembic_import_invoke(bContext *C, wmOperator *op, const wmEvent *event)
{
  if (!RNA_struct_property_is_set(op->ptr, "as_background_job")) {
    RNA_boolean_set(op->ptr, "as_background_job", true);
  }
  return WM_operator_filesel(C, op, event);
}

/* function used for WM_OT_save_mainfile too */
static int wm_collada_import_exec(bContext *C, wmOperator *op)
{
    char filename[FILE_MAX];
    int import_units;
    int find_chains;
    int fix_orientation;
    int  min_chain_length;

    if (!RNA_struct_property_is_set(op->ptr, "filepath")) {
        BKE_report(op->reports, RPT_ERROR, "No filename given");
        return OPERATOR_CANCELLED;
    }

    /* Options panel */
    import_units     = RNA_boolean_get(op->ptr, "import_units");
    find_chains      = RNA_boolean_get(op->ptr, "find_chains");
    fix_orientation  = RNA_boolean_get(op->ptr, "fix_orientation");
    min_chain_length = RNA_int_get(op->ptr, "min_chain_length");

    RNA_string_get(op->ptr, "filepath", filename);
    if (collada_import(
                C, filename,
                import_units,
                find_chains,
                fix_orientation,
                min_chain_length))
    {
        return OPERATOR_FINISHED;
    }
    else {
        BKE_report(op->reports, RPT_ERROR, "Errors found during parsing COLLADA document (see console for details)");
        return OPERATOR_CANCELLED;
    }
}

static int multires_external_save_invoke(bContext *C, wmOperator *op, wmEvent *UNUSED(event))
{
	Object *ob = ED_object_active_context(C);
	MultiresModifierData *mmd;
	Mesh *me= ob->data;
	char path[FILE_MAX];

	if (!edit_modifier_invoke_properties(C, op))
		return OPERATOR_CANCELLED;
	
	mmd = (MultiresModifierData *)edit_modifier_property_get(op, ob, eModifierType_Multires);
	
	if (!mmd)
		return OPERATOR_CANCELLED;
	
	if(CustomData_external_test(&me->fdata, CD_MDISPS))
		return OPERATOR_CANCELLED;

	if(RNA_struct_property_is_set(op->ptr, "filepath"))
		return multires_external_save_exec(C, op);
	
	op->customdata= me;

	BLI_snprintf(path, sizeof(path), "//%s.btx", me->id.name+2);
	RNA_string_set(op->ptr, "filepath", path);
	
	WM_event_add_fileselect(C, op);

	return OPERATOR_RUNNING_MODAL;
}

static int wm_alembic_import_exec(bContext *C, wmOperator *op)
{
	if (!RNA_struct_property_is_set(op->ptr, "filepath")) {
		BKE_report(op->reports, RPT_ERROR, "No filename given");
		return OPERATOR_CANCELLED;
	}

	char filename[FILE_MAX];
	RNA_string_get(op->ptr, "filepath", filename);

	const float scale = RNA_float_get(op->ptr, "scale");
	const bool is_sequence = RNA_boolean_get(op->ptr, "is_sequence");
	const bool set_frame_range = RNA_boolean_get(op->ptr, "set_frame_range");
	const bool validate_meshes = RNA_boolean_get(op->ptr, "validate_meshes");
	const bool as_background_job = RNA_boolean_get(op->ptr, "as_background_job");

	int offset = 0;
	int sequence_len = 1;

	if (is_sequence) {
		sequence_len = get_sequence_len(filename, &offset);
		if (sequence_len < 0) {
			BKE_report(op->reports, RPT_ERROR, "Unable to determine ABC sequence length");
			return OPERATOR_CANCELLED;
		}
	}

	bool ok = ABC_import(C, filename, scale, is_sequence, set_frame_range,
	                     sequence_len, offset, validate_meshes,
	                     as_background_job);

	return as_background_job || ok ? OPERATOR_FINISHED : OPERATOR_CANCELLED;
}

/* note: also check ed_undo_step() in top if you change notifiers */
static int undo_history_exec(bContext *C, wmOperator *op)
{
	if (RNA_struct_property_is_set(op->ptr, "item")) {
		int undosys = get_undo_system(C);
		int item = RNA_int_get(op->ptr, "item");
		
		if (undosys == UNDOSYSTEM_PARTICLE) {
			PE_undo_number(CTX_data_scene(C), item);
		}
		else if (undosys == UNDOSYSTEM_EDITMODE) {
			undo_editmode_number(C, item + 1);
			WM_event_add_notifier(C, NC_GEOM | ND_DATA, NULL);
		}
		else if (undosys == UNDOSYSTEM_IMAPAINT) {
			ED_undo_paint_step_num(C, UNDO_PAINT_IMAGE, item );
		}
		else {
			ED_viewport_render_kill_jobs(C, true);
			BKE_undo_number(C, item);
			WM_event_add_notifier(C, NC_SCENE | ND_LAYER_CONTENT, CTX_data_scene(C));
		}
		WM_event_add_notifier(C, NC_WINDOW, NULL);
		
		return OPERATOR_FINISHED;
	}
	return OPERATOR_CANCELLED;
}

static int file_browse_exec(bContext *C, wmOperator *op)
{
	FileBrowseOp *fbo = op->customdata;
	ID *id;
	char *str, path[FILE_MAX];
	const char *path_prop = RNA_struct_find_property(op->ptr, "directory") ? "directory" : "filepath";
	
	if (RNA_struct_property_is_set(op->ptr, path_prop) == 0 || fbo == NULL)
		return OPERATOR_CANCELLED;
	
	str = RNA_string_get_alloc(op->ptr, path_prop, NULL, 0);

	/* add slash for directories, important for some properties */
	if (RNA_property_subtype(fbo->prop) == PROP_DIRPATH) {
		int is_relative = RNA_boolean_get(op->ptr, "relative_path");
		id = fbo->ptr.id.data;

		BLI_strncpy(path, str, FILE_MAX);
		BLI_path_abs(path, id ? ID_BLEND_PATH(G.main, id) : G.main->name);
		
		if (BLI_is_dir(path)) {
			/* do this first so '//' isnt converted to '//\' on windows */
			BLI_add_slash(path);
			if (is_relative) {
				BLI_strncpy(path, str, FILE_MAX);
				BLI_path_rel(path, G.main->name);
				str = MEM_reallocN(str, strlen(path) + 2);
				BLI_strncpy(str, path, FILE_MAX);
			}
			else {
				str = MEM_reallocN(str, strlen(str) + 2);
			}
		}
		else {
			char * const lslash = (char *)BLI_last_slash(str);
			if (lslash) lslash[1] = '\0';
		}
	}

	RNA_property_string_set(&fbo->ptr, fbo->prop, str);
	RNA_property_update(C, &fbo->ptr, fbo->prop);
	MEM_freeN(str);


	/* special, annoying exception, filesel on redo panel [#26618] */
	{
		wmOperator *redo_op = WM_operator_last_redo(C);
		if (redo_op) {
			if (fbo->ptr.data == redo_op->ptr->data) {
				ED_undo_operator_repeat(C, redo_op);
			}
		}
	}

	MEM_freeN(op->customdata);

	return OPERATOR_FINISHED;
}

static int apply_solution_scale_invoke(bContext *C, wmOperator *op, const wmEvent *UNUSED(event))
{
  SpaceClip *sc = CTX_wm_space_clip(C);
  MovieClip *clip = ED_space_clip_get_clip(sc);
  if (!RNA_struct_property_is_set(op->ptr, "distance")) {
    RNA_float_set(op->ptr, "distance", clip->tracking.settings.dist);
  }
  return apply_solution_scale_exec(C, op);
}

static int edit_sensor_invoke_properties(bContext *C, wmOperator *op)
{
    PointerRNA ptr = CTX_data_pointer_get_type(C, "sensor", &RNA_Sensor);

    if (RNA_struct_property_is_set(op->ptr, "sensor") && RNA_struct_property_is_set(op->ptr, "object") )
        return 1;

    if (ptr.data) {
        bSensor *sens = ptr.data;
        Object *ob = ptr.id.data;

        RNA_string_set(op->ptr, "sensor", sens->name);
        RNA_string_set(op->ptr, "object", ob->id.name + 2);
        return 1;
    }

    return 0;
}

static int mesh_bisect_invoke(bContext *C, wmOperator *op, const wmEvent *event)
{
	Object *obedit = CTX_data_edit_object(C);
	BMEditMesh *em = BKE_editmesh_from_object(obedit);
	int ret;

	if (em->bm->totedgesel == 0) {
		BKE_report(op->reports, RPT_ERROR, "Selected edges/faces required");
		return OPERATOR_CANCELLED;
	}

	/* if the properties are set or there is no rv3d,
	 * skip model and exec immediately */

	if ((CTX_wm_region_view3d(C) == NULL) ||
	    (RNA_struct_property_is_set(op->ptr, "plane_co") &&
	     RNA_struct_property_is_set(op->ptr, "plane_no")))
	{
		return mesh_bisect_exec(C, op);
	}

	ret = WM_gesture_straightline_invoke(C, op, event);
	if (ret & OPERATOR_RUNNING_MODAL) {
		View3D *v3d = CTX_wm_view3d(C);

		wmGesture *gesture = op->customdata;
		BisectData *opdata;


		opdata = MEM_mallocN(sizeof(BisectData), "inset_operator_data");
		opdata->mesh_backup = EDBM_redo_state_store(em);
		opdata->is_first = true;
		gesture->userdata = opdata;

		/* misc other vars */
		G.moving = G_TRANSFORM_EDIT;
		opdata->twtype = v3d->twtype;
		v3d->twtype = 0;

		/* initialize modal callout */
		ED_area_headerprint(CTX_wm_area(C), IFACE_("LMB: Click and drag to draw cut line"));
	}
	return ret;
}