-- File:    V3d_LayerMgr.cdl
-- Created: 17/04/2008
-- Author:  Customer Support
--
---Copyright:   Open Cascade 2008
--

class LayerMgr from V3d inherits TShared from MMgt

    ---Purpose: Class to manage layers

uses

    ExtendedString from TCollection,
    Color from Quantity,
    Layer from Visual3d,
    ColorScale from Aspect,
    ColorScale from V3d,
    ColorScaleLayerItem from V3d,
    View from V3d,
    ViewPointer from V3d
    

is

    ---Category: Public

    Create (aView : View from V3d)
    returns mutable LayerMgr from V3d;
    
    Overlay (me)
    returns mutable Layer from Visual3d;
    ---C++: return const &
    ---C++: inline

    View (me)
    returns mutable View from V3d;
    ---C++: inline

    ColorScaleDisplay (me : mutable);
    ColorScaleErase (me : mutable);
    ColorScaleIsDisplayed (me) returns Boolean from Standard;
    ColorScale (me) returns mutable ColorScale from Aspect;

    Compute (me : mutable);
    ---Purpose: Recompute layer with objects

    Resized(me : mutable);

    ---Category: Protected

    Begin (me : mutable) returns Boolean from Standard is virtual protected;
    ---Purpose: Begin layers recomputation

    Redraw (me : mutable) is virtual protected;
    ---Purpose: Perform layers recomputation

    End (me : mutable) is virtual protected;
    ---Purpose: End layers recomputation

fields

    myView       : ViewPointer from V3d is protected;
    myOverlay    : Layer from Visual3d is protected;
    myColorScale : ColorScale from V3d is protected;
    
    myColorScaleLayerItem: ColorScaleLayerItem from V3d is protected;

end LayerMgr;