sdk/fidl/fuchsia.ui.gfx/shapes.fidl

// Copyright 2017 The Fuchsia Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
library fuchsia.ui.gfx;

// The shapes defined in this file can be used to define the rendered shape of
// an `ObjectNode`, and to define the clip region of a `ClipNode`.

/// Rectangle centered at (0,0).
type RectangleArgs = struct {
    width Value; // float32
    height Value; // float32
};

/// RoundedRectangle centered at (0,0).  Legal parameter values must satisfy the
/// constraint that the flat sides of the rectangle have non-negative length.
/// In other words, the following constraints must hold:
///   - top_left_radius + top_right_radius <= width
///   - bottom_left_radius + bottom_right_radius <= width
///   - top_left_radius + bottom_left_radius <= height
///   - top_right_radius + bottom_right_radius <= height
type RoundedRectangleArgs = struct {
    width Value; // float32
    height Value; // float32
    top_left_radius Value; // float32
    top_right_radius Value; // float32
    bottom_right_radius Value; // float32
    bottom_left_radius Value; // float32
};

type CircleArgs = struct {
    radius Value; // float32
};

/// A Mesh cannot be rendered until it has been bound to vertex/index buffers;
/// see BindMeshBuffersCmd.
type MeshArgs = struct {};