88 lines
2.4 KiB
C#
88 lines
2.4 KiB
C#
// Copyright (c) Wojciech Figat. All rights reserved.
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using System.Runtime.InteropServices;
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using FlaxEngine;
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namespace FlaxEditor.Surface
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{
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public partial class VisjectSurface
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{
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[StructLayout(LayoutKind.Sequential)]
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internal struct Meta10 // TypeID: 10, for surface
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{
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public Float2 ViewCenterPosition;
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public float Scale;
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}
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[StructLayout(LayoutKind.Sequential)]
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internal struct Meta11 // TypeID: 11, for nodes
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{
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public Float2 Position;
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public bool Selected;
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}
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/// <summary>
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/// Loads surface from the bytes.
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/// </summary>
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/// <remarks>
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/// The method calls the <see cref="ISurfaceContext.SurfaceData"/> getter to load the surface data bytes.
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/// </remarks>
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/// <returns>True if failed, otherwise false.</returns>
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public virtual bool Load()
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{
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Enabled = false;
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// Clean data
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_connectionInstigators.Clear();
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_lastInstigatorUnderMouse = null;
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var failed = RootContext.Load();
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Enabled = true;
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if (failed)
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{
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// Error
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return true;
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}
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// Update the view from context meta
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ViewCenterPosition = _context.CachedSurfaceMeta.ViewCenterPosition;
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ViewScale = _context.CachedSurfaceMeta.Scale;
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// End
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Owner.OnSurfaceEditedChanged();
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return false;
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}
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/// <summary>
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/// Saves the surface graph to bytes.
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/// </summary>
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/// <remarks>
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/// The method calls the <see cref="ISurfaceContext.SurfaceData"/> setter to assign the result bytes. Sets null value if failed.
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/// </remarks>
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/// <returns>True if failed, otherwise false.</returns>
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public virtual bool Save()
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{
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var wasEdited = IsEdited;
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// Update the current context meta
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_context.CachedSurfaceMeta.ViewCenterPosition = ViewCenterPosition;
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_context.CachedSurfaceMeta.Scale = ViewScale;
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// Save context (and every modified child context)
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if (RootContext.Save())
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return true;
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// Clear flag
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if (wasEdited)
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{
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Owner.OnSurfaceEditedChanged();
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}
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return false;
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}
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}
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}
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