//  ExpandPanels   Version 3.0

2024-01-31 MaxM: First port from original code in BGRAControls (formally Ver. 3.0)

//  ExpandPanels   Version 2.2

30-06-2016 MaxM :
     Added Button.Style as bbsLineTop,bbsLineBottom,bbsLineDoubleTop,bbsLineDoubleBottom
     Fixed Some Paint Coordinate position of Button elements and Lines

21-06-2016 MaxM :
     Added Button.GlyphKind (default to gkArrows)
     Added gkClose (EXP_PANEL_CLOSE.png),
           gkMinMax (EXP_PANEL_MIN_*.png, EXP_PANEL_MAX_*.png) Glyphs
     Added TExpandPanels properties ButtonGlyphLayout,ButtonGlyphKind,ButtonStyle,ButtonTextLayout,ButtonTabWidth

15-06-2016 MaxM :
     Added Button.Style as bbsLine and bbsLineDouble

09-06-2016 MaxM :
     Completed Painting of Button.Style as bbsTab

05-2016 MaxM :
     Added Owner Draw of Panel so we can Draw Rounded Borders and don't draw Borders when Collapsed  
     Added Style property on Button (bbsButton, bbsTab) (bbsTab paint is incomplete do not use)
     Deleted BevenInner/Outer redefinition no more needed because now we draw the borders
     Changed using of writeln with debugln because strange exceptions under Windows
     Moved TMyRollOut.Loaded Code to CreateWnd because on RunTime creation is never Called
     Fixed More OnCollapsed events
     Fixed PositionButton is called only after Loaded is complete
     Updated Copyright and Created separeted txt files
     Added development test with only one panel (to simplify my life)

//  ExpandPanels   Version 2.1

23-07-2015 MaxM :
     Added Owner Draw of Button so we can Draw Vertically when ButtonPosition is akLeft or akRight
     Added Glyphs Support (Automatically Loaded from Resources or User Passed)
     Solved Bugs About BevelOuter and Starting in Collapsed State
     Moved Colors inside Button

// TO-DO:

- MaxM:

Fix User components have 2 Pixels visible over the Button when Button Position
      is akRight and is Collapsed SEE PROJECT1 DEVELOPMENT - ONLY ADDED IN TExpandPanels?
Fix Shadows incoerence when Button.Style is bbsTab, the Panel attached side may not have borders.


- Alex

simplyfy everything with verctor addition and scalar multiplication (orthogonal basis vectors... and so on)
      if horizonatal and vertical would be described by a unity vector, I could calculate if a certain operation should be performed
      and I could just multiply the basis vector  with an operation to get a delta movement (or none)



Known Bugs:

- the TExpandPanels lacks a arrange on bottom and right

- (Solved?) Button.Color Setted to clBtnFace at DesignTime -> Color = clSkyBlue in RunTime
    (is not Loaded because is The inherited Default Color of TCustomSpeedButton)