forked from mirrors/gstreamer-rs
66 lines
2.1 KiB
Rust
66 lines
2.1 KiB
Rust
// Copyright (C) 2018 Thibault Saunier <tsaunier@igalia.com>
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//
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// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
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// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
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// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
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// option. This file may not be copied, modified, or distributed
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// except according to those terms.
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use ffi;
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use glib;
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use glib::object::IsA;
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use glib::translate::*;
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use std::ptr;
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use TimelineElement;
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pub trait TimelineElementExtManual: 'static {
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fn get_child_property(&self, name: &str) -> Option<glib::Value>;
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fn set_child_property(&self, name: &str, value: &glib::ToValue) -> Result<(), glib::BoolError>;
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}
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impl<O: IsA<TimelineElement>> TimelineElementExtManual for O {
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fn get_child_property(&self, name: &str) -> Option<glib::Value> {
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unsafe {
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let found: bool = from_glib(ffi::ges_timeline_element_lookup_child(
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self.to_glib_none().0,
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name.to_glib_none().0,
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ptr::null_mut(),
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ptr::null_mut(),
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));
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if !found {
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return None;
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}
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let mut value = glib::Value::uninitialized();
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ffi::ges_timeline_element_get_child_property(
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self.to_glib_none().0,
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name.to_glib_none().0,
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value.to_glib_none_mut().0,
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);
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Some(value)
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}
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}
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fn set_child_property(&self, name: &str, value: &glib::ToValue) -> Result<(), glib::BoolError> {
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unsafe {
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let found: bool = from_glib(ffi::ges_timeline_element_lookup_child(
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self.to_glib_none().0,
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name.to_glib_none().0,
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ptr::null_mut(),
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ptr::null_mut(),
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));
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if !found {
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return Err(glib::BoolError("Child property not found"));
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}
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let value = value.to_value();
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ffi::ges_timeline_element_set_child_property(
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self.to_glib_none().0,
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name.to_glib_none().0,
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value.to_glib_none().0,
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);
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Ok(())
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}
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}
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}
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