/// <summary>
/// Assures a canvas is loaded, either from the cache or new
/// </summary>
public void AssureCanvas()
{
if (nodeCanvas == null)
{
LoadNodeCanvas(NodeEditorSaveManager.GetLastCanvasPath());
}
if (editorState == null)
{
NewEditorState();
}
}
/// <summary>
/// Loads the mainNodeCanvas and it's associated mainEditorState from an asset at path
/// 加载一个Canvas
/// </summary>
public void LoadNodeCanvas(string path)
{
//如果路径一致，说明是同一个canvas
if (NodeEditor.curEditorState != null && NodeEditor.curEditorState.canvas != null && (NodeEditor.curEditorState.canvas.savePath == path ||
path.Contains(NodeEditor.curEditorState.canvas.savePath)) && (
NodeEditorSaveManager.GetLastCanvasPath() == path || path.Contains(NodeEditorSaveManager.GetLastCanvasPath())))
{
this.nodeCanvas = NodeEditor.curEditorState.canvas;
return;
}
//如果不存在路径，则新建一个DefaultCanvas
if (!File.Exists(path) || (nodeCanvas = NodeEditorSaveManager.LoadNodeCanvas(path)) == null)
{
NewNodeCanvas();
return;
}
editorState = NodeEditorSaveManager.ExtractEditorState(nodeCanvas, MainEditorStateIdentifier);
nodeCanvas.Validate();
UpdateCanvasInfo();
NodeEditor.RepaintClients();
Debug.Log($"加载{path}成功");
}