// フォームロードイベント。起動時にコンストラクタの次に実行される
private void MainForm_Load(object sender, EventArgs e)
{
Application.CurrentUndoDepthChanged += Application_CurrentUndoDepthChanged;
Application.ProjectValidated += (_sender, _e) => { RefreshRender(); };
ProjectExplorer = new Forms.ProjectExplorer( this );
ProjectExplorer.Show( dockPanel, DockState.DockLeft );
ProjectExplorer.IsHiddenChanged += ProjectExplorer_IsHiddenChanged;
StructureViewer = new Forms.StructureViewer( this );
StructureViewer.Show( dockPanel, DockState.Document );
StructureViewer.IsHiddenChanged += StructureViewer_IsHiddenChanged;
PropertyEditor = new Forms.PropertyEditor( this );
PropertyEditor.Show( dockPanel, DockState.DockRight );
PropertyEditor.IsHiddenChanged += PropertyEditor_IsHiddenChanged;
Application.OpenedProject = Application.OpenedProject;
StructureViewer.MoveViewToPerspective();
RefreshRender();
}