type statetype
    tool as long
    fcolor as long
    bcolor as long
end type

type layertype
    ihandle as long
    blendmode as long
    filter as long
    kind as long
end type

dim shared layers(0) as layertype
dim shared state as statetype



dim shared mouseclicked as integer
dim shared mousedown as integer
dim shared rmouseclicked as integer
dim shared rmousedown as integer
$resize:on
screen _newimage(640,480,32)
_delay 0.1
temp&=_resize
redim shared pal(0) as _unsigned long
dim as integer ch1,ch2,ch3,bt
loadpalette "endesga16",pal()

do
    line (0,0)-(_width-1,_height-1),backgroundcolor1,bf
    IF CheckResize(_SOURCE) = -1 then rem 'whatever, maybe some day somthing needs changing if the window is resized'
    while _mouseinput:wend
    mouseclicked=0
    rmouseclicked=0
    if mousedown=-1 and _mousebutton(1)=0 then mouseclicked=-1
    if rmousedown=-1 and _mousebutton(1)=0 then rmouseclicked=-1
    mousedown=_mousebutton(1)
    rmousedown=_mousebutton(2)
    toolbox
    colorpicker
    canvas
    locate 10,10: print state.tool
    locate 11,10: color state.fcolor: print state.fcolor
    locate 12,10: color state.bcolor: print state.bcolor
    _limit 30
    _display
loop

sub toolbox
    dim x,y
   if imagebutton(0,0,32,32,icon(0)) then state.tool=1
   if imagebutton(32,0,32,32,icon(1)) then state.tool=2
end sub

sub colorpicker
    dim img as long
    img=_newimage(16,16,32)
    for i=0 to ubound(pal)
        _dest img
        cls ,pal(i)
        line (0,0)-(_width-1,height-1),pal(i),bf
        _dest 0
        select case imagebutton(i*16,_height-17,16,16,img)
            case -1
                state.fcolor=pal(i)
            case -2
                state.bcolor=pal(i)
        end select 
    next i
    _freeimage img
end sub

sub canvas

end sub

function icon(index as long)
    static init as integer
    static icons() as long
    if not init then
        dim icons(5) as long
        icons(0)=_newimage(32,32,32)
        _dest icons(0)
        line (5,27)-(27,5)
        icons(1)=_newimage(32,32,32)
        _dest icons(1)
        circle (15,15),13
        icons(2)=_newimage(32,32,32)
        _dest icons(2)
        
        _dest 0
    init = -1
    end if
    if (index>=lbound(icons)) and (index<=ubound(icons)) then
        icon=icons(index)
    end if
end function

'$include: 'include/ui.bm'
'$include: 'include/imgout.bm'
'$include: 'include/palette.bm'

function adduiicon(imagehandle as long)
    dim unknown as long
    adduiicon=__internaluiicon(unknown,imagehandle,1)
end function

function adduiiconfromfile(filename as string)
    dim unknown as long
    adduiiconfromfile=__internaluiicon(unknown,_loadimage(filename),1)
end function

function uiicon(index)
    dim unknown as long
    uiicon=internaluiicon(index,unknown,2)
end function

function __internaluiicon&(index as long,imagehandle as long,mode as integer)
    static init as integer
    static icons() as long
    if not init or mode=3 then
        if mode<3 then 
            redim icons(3) as long
        else
            _freeimage icons(0)
            _freeimage icons(1)
            _freeimage icons(2)
            _freeimage icons(3)
        end if
        icons(0)=_newimage(23,23,32) 'Up arrow'
        _dest icons(0)
        color textcolor
        
        icons(1)=_newimage(23,23,32) 'Down arrow'
        _dest icons(1)
        color textcolor
        
        icons(2)=_newimage(23,23,32) 'Left arrow'
        _dest icons(2)
        color textcolor
        
        icons(3)=_newimage(23,23,32) 'Right arrow'
        _dest icons(3)               
        color textcolor
        
        _dest 0
        init=-1
    end if
    
    select case mode
        case 1
            redim _preserve icons(ubound(icons)+1)
            icons(ubound(icons))=imagehandle
            __internaluiicon=ubound(icons)
        case 2
            __internaluiicon=icons(index)
    end select
end function


FUNCTION CheckResize (CurrentScreen AS _UNSIGNED LONG)

    ' *** Define local variable for temporary screen
    DIM TempScreen AS _UNSIGNED LONG

    CheckResize = 0

    ' *** Check to see if the user resized the window. If so, change the SCREEN image to the correct size.
    IF _RESIZE THEN

        ' *** First, create a copy of the current SCREEN image.
        TempScreen = _COPYIMAGE(CurrentScreen, 32)

        ' *** Set the SCREEN to the copied image, releasing the current SCREEN image.
        SCREEN TempScreen

        ' *** Remove (FREE) the original SCREEN image.
        _FREEIMAGE CurrentScreen

        ' *** Create a new "original" SCREEN image.
        CurrentScreen = _NEWIMAGE(_RESIZEWIDTH, _RESIZEHEIGHT, 32)

        ' *** Set the SCREEN to the new "original" image, releasing the copied SCREEN image.
        SCREEN CurrentScreen

        '  DRAW PREVIOUS SCREEN ON THE NEW ONE
        _PUTIMAGE (0, 0), TempScreen, CurrentScreen

        _DISPLAY

        ' *** Remove (FREE) the copied SCREEN image.
        _FREEIMAGE TempScreen

        ' *** Tell the caller there was a resize
        CheckResize = -1

    END IF

END FUNCTION