677 lines
22 KiB
QBasic
677 lines
22 KiB
QBasic
type statetype
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tool as long
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fcolor as long
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bcolor as long
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offsetX as long
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offsetY as long
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zoom as single
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brushsize as integer
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startX as long
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startY as long
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isDrawing as integer
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end type
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type layertype
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ihandle as long
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blendmode as long
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filter as long
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kind as long
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end type
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redim shared layers(3) as layertype
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dim shared state as statetype
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redim shared commands(0) as string
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dim shared showtoolbox as _byte: showtoolbox=-1
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dim shared showcolorpicker as _byte: showcolorpicker=-1
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dim shared showcommands as _byte: showcommands=0
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dim shared mouseclicked as integer
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dim shared mousedown as integer
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dim shared rmouseclicked as integer
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dim shared rmousedown as integer
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$resize:on
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screen _newimage(750,480,32)
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_delay 0.1
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temp&=_resize
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redim shared pal(0) as _unsigned long
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dim as integer ch1,ch2,ch3,bt
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loadpalette "slso8",pal()
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layers(0).ihandle=_newimage(320,320,32)
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layers(1).ihandle=_newimage(320,320,32)
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layers(2).ihandle=_newimage(320,320,32)
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layers(3).ihandle=_newimage(320,320,32)
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_dest layers(0).ihandle
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addcommand "canvas ("+tst(_width)+","+tst(_height)+")"
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for y = 0 to _height - 16 step 16
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for x = 0 to _width - 16 step 16
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if ((x + y) / 16 AND 1) = 0 then
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line (x, y)-(x + 16, y + 16), _rgb32(127), bf
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else
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line (x, y)-(x + 16, y + 16), _rgb32(192), bf
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end if
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next
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next
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_dest 0
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state.tool = 1
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state.zoom = 1.0
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state.offsetX = 70 + 20
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state.offsetY = 20
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state. brushsize = 1
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state.fcolor=closestcolor(_rgb32(0,0,0),pal())
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state.bcolor=closestcolor(_rgb32(255,255,255),pal())
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addcommand "fcolor ("+hex$(state.fcolor)+")"
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addcommand "bcolor ("+hex$(state.bcolor)+")"
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dim lastMX, lastMY
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dim keyin as string
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dim mouseWorldY as integer
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dim mouseWorldX as integer
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dim diffX as integer
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dim diffY as integer
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dim oldWidth as integer
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dim oldHeight as integer
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oldWidth=_width
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oldHeight=_height
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do
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if CheckResize(_source) = -1 THEN
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diffX = _width - oldWidth
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diffY = _height - oldHeight
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state.offsetX = state.offsetX + (diffX / 2)
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state.offsetY = state.offsetY + (diffY / 2)
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oldWidth = _width
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oldHeight = _height
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end if
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canvas
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if showtoolbox then toolbox
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if showcolorpicker then colorpicker
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if showcommands then commandlist
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'Mouse Handling
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while _mouseinput:mw=mw+_mousewheel:wend
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mouseclicked = 0
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rmouseclicked = 0
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if mousedown = -1 and _mousebutton(1) = 0 then mouseclicked = -1
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if rmousedown = -1 and _mousebutton(2) = 0 then rmouseclicked = -1
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mousedown = _mousebutton(1)
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rmousedown = _mousebutton(2)
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' Panning (Middle Mouse)
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if _mousebutton(3) then
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state.offsetX = int(state.offsetX + (_mousex - lastMX))
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state.offsetY = int(state.offsetY + (_mousey - lastMY))
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end if
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lastMX = _mousex: lastMY = _mousey
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' Zooming
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if mw <> 0 then
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' 1. Capture current world position
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mouseWorldX = (_mousex - state.offsetX) / state.zoom
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mouseWorldY = (_mousey - state.offsetY) / state.zoom
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' 2. Calculate the new zoom level (Snap to whole numbers)
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if mw > 0 then
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state.zoom = state.zoom + 1
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else
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state.zoom = state.zoom - 1
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end if
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' 3. Constrain zoom (Min 1, Max 20)
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if state.zoom < 1 then state.zoom = 1
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if state.zoom > 20 then state.zoom = 20
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' 4. Adjust offsets
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state.offsetX = _mousex - (mouseWorldX * state.zoom)
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state.offsetY = _mousey - (mouseWorldY * state.zoom)
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mw = 0
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end if
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' Keyboarding
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keyin=inkey$
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select case keyin
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case "+"
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state.brushsize=state.brushsize+1
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addcommand "brushsize ("+tst(state.brushsize)+")"
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case "-"
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if state.brushsize>1 then state.brushsize=state.brushsize-1
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addcommand "brushsize ("+tst(state.brushsize)+")"
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case chr$(19) ' ctrl+s
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'TODO: save logic
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case chr$(27)' esc
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menu
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case "h"
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state.zoom=1.0
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state.offsetX=(_width/2)- (_width(layers(0).ihandle)/2)
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state.offsetY=(_height/2)- (_height(layers(0).ihandle)/2)
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case "t"
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showtoolbox=not showtoolbox
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case "c"
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showcolorpicker=not showcolorpicker
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case "l"
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showcommands=not showcommands
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end select
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_limit 30
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_display
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line (0,0)-(_width-1,_height-1),backgroundcolor1,bf
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loop
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sub commandlist
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dim i as long
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dim listWidth as integer:listWidth = 250
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dim x as integer:x=_width-listWidth
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' Draw background for the list
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line (x,0)-(_width-1,_height - 1),backgroundcolor1, bf
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line (x,0)-(x,_height-1),backgroundcolor2
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_printmode _keepbackground
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dim y as integer
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for i = ubound(commands) - 1 to 0 step -1
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y = (ubound(commands)-i) * 16
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if y < _height - 20 then
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'_printstring (x + 5, y + 5), left$(commands(i), 31)
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if link(x + 5, y + 5, left$(commands(i), 31)) then
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commands(i)=textinput(x + 5, y + 5,248,23, commands(i))
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end if
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end if
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next i
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if button(x,_height-25, 60,23, "redraw") then redraw
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end sub
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sub redraw
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redim numarr(0) as long
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for i=lbound(commands) to ubound(commands)
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select case lcase$(_trim$(left$(commands(i),instr(commands(i),"(")-1)))
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case "canvas"
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case "fcolor"
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case "bcolor"
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case "pixel"
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case "line"
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case "brushwidth"
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case "box"
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case "fbox"
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case "circle"
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case "fcircle"
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case "polygon"
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case "fpolygon"
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case "floodfill"
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case else
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end select
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next i
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end sub
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sub toolbox
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dim i, x, y
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dim btnSize : btnSize = 32
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dim spacing : spacing = 1
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for i = 0 to 19
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' Force integer math to keep columns locked at 2
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' x will only ever be 0 or 33
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x = (i mod 2) * (btnSize + spacing)
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' y will only increase every 2 buttons
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' Use Int() if your language doesn't support the \ operator
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y = Int(i / 2) * (btnSize + spacing)
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if imagebutton(x, y, btnSize, btnSize, icon(i)) then
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state.tool = i + 1
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end if
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next
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'colorindicator
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y=y+btnSize+16
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line (16,y+16)-(64,y+64),state.bcolor,bf
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line (16,y+16)-(64,y+64),highlightcolor,b
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line (0,y)-(48,y+48),state.fcolor,bf
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line (0,y)-(48,y+48),highlightcolor,b
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if clickregion(0, y, 48, 48) then
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palettemanager state.fcolor
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elseif clickregion(16, y + 16, 48, 48) then
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palettemanager state.bcolor
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end if
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end sub
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sub colorpicker
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dim img as long
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img=_newimage(16,16,32)
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for i=0 to ubound(pal)
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_dest img
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cls ,pal(i)
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line (0,0)-(_width-1,height-1),pal(i),bf
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_dest 0
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select case imagebutton(i*16,_height-17,16,16,img)
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case -1
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state.fcolor=pal(i)
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addcommand "fcolor ("+hex$(pal(i))+")"
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case -2
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state.bcolor=pal(i)
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addcommand "bcolor ("+hex$(pal(i))+")"
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end select
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next i
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_freeimage img
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end sub
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sub addcommand(cmd as string)
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'this check is probably more clever than good is.
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if commands(ubound(commands)+(ubound(commands)>0))<>cmd then
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commands(ubound(commands))=cmd
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redim _preserve commands(ubound(commands)+1) as string
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end if
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end sub
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sub canvas
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' 1. Define the Viewport (The "Window" on your screen)
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dim viewX1 as integer
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if showtoolbox then viewX1 = 70 else viewX1 = 0
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dim viewY1 as integer: viewY1 = 0
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dim viewX2 as integer
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if showcommands then viewX2 = _width - 151 else viewX2 = _width - 1
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dim viewY2 as integer
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if showcolorpicker then viewY2 = _height - 20 else viewY2 = _height - 1
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_dest 0
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' 2. Render Layers with Clipping
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dim srcX1 as long
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dim srcY1 as long
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dim srcX2 as long
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dim srcY2 as long
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dim drawX1 as long
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dim drawY1 as long
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dim drawX2 as long
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dim drawY2 as long
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dim i as integer
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for i = 0 to ubound(layers)
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dim img as long: img = layers(i).ihandle
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dim imgW as integer: imgW = _width(img)
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dim imgH as integer: imgH = _height(img)
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' Current scaled dimensions
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dim fullScaledW as single: fullScaledW = imgW * state.zoom
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dim fullScaledH as single: fullScaledH = imgH * state.zoom
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' Calculate visible area in screen coordinates (Overlap of image and viewport)
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drawX1 = state.offsetX
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drawY1 = state.offsetY
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drawX2 = state.offsetX + fullScaledW
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drawY2 = state.offsetY + fullScaledH
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' Clip the destination to the Viewport
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if drawX1 < viewX1 then drawX1 = viewX1
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if drawY1 < viewY1 then drawY1 = viewY1
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if drawX2 > viewX2 then drawX2 = viewX2
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if drawY2 > viewY2 then drawY2 = viewY2
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' Only draw if the image is actually inside the viewport
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if drawX2 > drawX1 and drawY2 > drawY1 then
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' Map screen-clipped coordinates back to the source image coordinates
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srcX1 = int((drawX1 - state.offsetX) / state.zoom)
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srcY1 = int((drawY1 - state.offsetY) / state.zoom)
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srcX2 = int((drawX2 - state.offsetX) / state.zoom)
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srcY2 = int((drawY2 - state.offsetY) / state.zoom)
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' Syntax: _PUTIMAGE (destX1, destY1)-(destX2, destY2), sourceHandle, 0, (srcX1, srcY1)-(srcX2, srcY2)
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_putimage (drawX1, drawY1)-(drawX2, drawY2), img, 0, (srcX1, srcY1)-(srcX2, srcY2)
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end if
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next
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' 2.5 if the mouse is in ui thats all we need
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if showtoolbox then
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if _mousex >= 0 and _mousex <= 70 then
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exit sub
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end if
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end if
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if showcolorpicker then
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if _mousey >= _height - 20 then
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exit sub
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end if
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end if
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if showcommands then
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if _mousex >= drawX2 then
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exit sub
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end if
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end if
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dim r as integer
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' 3. Calculate Canvas Coordinates
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dim canX as long
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dim canY as long
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canX = int((_mousex - state.offsetX) / state.zoom)
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canY = int((_mousey - state.offsetY) / state.zoom)
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static polypoints(200) as single
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static pointCount as integer
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static drawCol
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if _mousebutton(1) then drawCol = state.fcolor
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if _mousebutton(2) then drawCol = state.bcolor
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if state.tool = 9 and (mouseclicked or rmouseclicked) then
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_dest layers(1).ihandle
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_source layers(1).ihandle
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if mouseclicked then
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floodfill canX,canY,state.fcolor
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addcommand "floodfill ("+tst(canX)+","+tst(canY)+","+hex$(state.fcolor)+")"
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else
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floodfill canX,canY,state.bcolor
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addcommand "floodfill ("+tst(canX)+","+tst(canY)+","+hex$(state.bcolor)+")"
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end if
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_dest 0
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_source 0
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exit sub
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end if
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if state.tool = 10 and (mouseclicked or rmouseclicked) then
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_dest layers(1).ihandle
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_source layers(1).ihandle
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if mouseclicked then
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state.fcolor=point(canX,canY)
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addcommand "fcolor ("+hex$(point(canX,canY))+")"
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else
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state.bcolor=point(canX,canY)
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addcommand "bcolor ("+hex$(point(canX,cany))+")"
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end if
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_dest 0
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_source 0
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exit sub
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end if
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if state.tool = 7 or state.tool = 8 then
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if mouseclicked then
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polypoints(pointCount * 2) = canX
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polypoints(pointCount * 2 + 1) = canY
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pointCount = pointCount + 1
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state.isDrawing = -1
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end if
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else
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if (mousedown or rmousedown) and state.isDrawing = 0 then
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state.startX = canX
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state.startY = canY
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state.isDrawing = -1
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end if
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end if
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if state.isDrawing then
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' We use Layer 2 as the temporary preview "rubber-band" layer
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_dest layers(2).ihandle
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cls , 0
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select case state.tool
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case 1 ' Pencil
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_dest layers(1).ihandle
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if canX=state.startX and canY=state.startY then
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thickpixel canX,canY,drawCol
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addcommand "pixel ("+tst(canX)+","+tst(canY)+","+hex$(drawCol)+")"
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else
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thickline state.startX, state.startY, canX, canY, drawCol
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addcommand "line ("+tst(state.startX)+","+tst(state.startY)+","+tst(canX)+","+tst(canY)+","+hex$(drawCol)+")"
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end if
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state.startX = canX: state.startY = canY
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case 2 ' Straight Line
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thickline state.startX, state.startY, canX, canY, drawCol
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case 3 ' Circle
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r = sqr((canX - state.startX)^2 + (canY - state.startY)^2)
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thickcircle state.startX, state.startY, r + 1, drawCol
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case 4 ' Filled Circle
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r = sqr((canX - state.startX)^2 + (canY - state.startY)^2)
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filledcircle state.startX, state.startY, r, drawCol
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case 5 ' Rect
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thickline state.startX, state.startY, canX, state.startY, drawCol
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thickline canX, state.startY, canX, canY, drawCol
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thickline canX, canY, state.startX, canY, drawCol
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thickline state.startX, canY, state.startX, state.startY, drawCol
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case 6 ' Filled Rect
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line (state.startX, state.startY)-(canX, canY), drawCol, bf
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case 7, 8 ' Polygons
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if pointCount > 0 then
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for p = 1 to pointCount - 1
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thickline polypoints((p - 1) * 2), polypoints((p - 1) * 2 + 1), polypoints(p * 2), polypoints(p * 2 + 1), state.fcolor
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next p
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thickline polypoints((pointCount - 1) * 2), polypoints((pointCount - 1) * 2 + 1), canX, canY, state.fcolor
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end if
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end select
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' 5. Commit Logic
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dim commit as integer: commit = 0
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if state.tool = 7 or state.tool = 8 then
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if rmouseclicked then commit = -1
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else
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if (mousedown=0) and (rmousedown=0) then commit = -1
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end if
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if commit then
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_dest layers(1).ihandle ' Final destination is always the drawing layer
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if (state.tool = 8 or state.tool=7) and pointCount > 2 then
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redim finalP(pointCount * 2 - 1) as long
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for p = 0 to (pointCount * 2) - 1: finalP(p) = polypoints(p): next
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dim tmpstr as string
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if state.tool =8 then
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filledPolygon finalP(), state.fcolor
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tmpstr="fpolygon ("
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for i=0 to ubound(finalP)-1
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tmpstr=tmpstr+tst(finalP(i))+","
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next i
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tmpstr=tmpstr+tst(finalP(i))+","+hex$(state.fcolor)+")"
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addcommand tmpstr
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else
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Polygon finalP(), state.fcolor
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tmpstr="polygon ("
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for i=0 to ubound(finalP)-1
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tmpstr=tmpstr+tst(finalP(i))+","
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next i
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tmpstr=tmpstr+tst(finalP(i))+","+hex$(state.fcolor)+")"
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addcommand tmpstr
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end if
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else
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' Merge the preview into the drawing layer
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'_putimage , layers(2).ihandle, layers(1).ihandle
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select case state.tool
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case 2 ' Line
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if canX=state.startX and canY=state.startY then
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thickpixel canX,canY,drawCol
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addcommand "pixel ("+tst(canX)+","+tst(canY)+","+hex$(drawCol)+")"
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else
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thickline state.startX, state.startY, canX, canY, drawCol
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addcommand "line ("+tst(state.startX)+","+tst(state.startY)+","+tst(canX)+","+tst(canY)+","+hex$(drawCol)+")"
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end if
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case 3 ' Circle
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r = int(sqr((canX - state.startX)^2 + (canY - state.startY)^2))
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thickcircle state.startX, state.startY, r + 1, drawCol
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addcommand "circle ("+tst(state.startX)+","+tst(state.startY)+","+tst(int(r))+","+hex$(drawCol)+")"
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case 4
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r = int(sqr((canX - state.startX)^2 + (canY - state.startY)^2))
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filledcircle state.startX, state.startY, r + 1, drawCol
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addcommand "fcircle ("+tst(state.startX)+","+tst(state.startY)+","+tst(int(r))+","+hex$(drawCol)+")"
|
|
case 5 ' Box
|
|
line (state.startX, state.startY)-(canX, canY), drawCol, b
|
|
addcommand "box ("+tst(state.startX)+","+tst(state.startY)+","+tst(canX)+","+tst(canY)+","+hex$(drawCol)+")"
|
|
case 6 ' Filled Box
|
|
line (state.startX, state.startY)-(canX, canY), drawCol, bf
|
|
addcommand "fbox ("+tst(state.startX)+","+tst(state.startY)+","+tst(canX)+","+tst(canY)+","+hex$(drawCol)+")"
|
|
end select
|
|
end if
|
|
_dest layers(2).ihandle: cls , 0
|
|
state.isDrawing = 0
|
|
pointCount = 0
|
|
end if
|
|
end if
|
|
|
|
_dest 0
|
|
end sub
|
|
|
|
function icon (index as long)
|
|
static init as integer
|
|
static icons() as long
|
|
if not init then
|
|
redim icons(19) as long ' Room for 20 icons
|
|
|
|
' Define your specific tool icons here
|
|
icons(0) = _newimage(32,32,32): _dest icons(0): line (5, 27)-(27, 5): _dest 0
|
|
icons(1) = _newimage(32,32,32): _dest icons(1): circle (15, 15), 13: _dest 0
|
|
icons(2) = _newimage(32,32,32): _dest icons(2): line (5, 5)-(27, 27), , b: _dest 0
|
|
icons(6) = _newimage(32,32,32): _dest icons(6)
|
|
line (5,15)-(15,5):line -(25,15):line -(20,25): line -(10,25):line -(5,15)
|
|
_dest 0
|
|
|
|
icons(7) = _newimage(32, 32, 32): _dest icons(7)
|
|
' Draw a small filled shape for the filled polygon icon
|
|
for fy = 10 to 20: line (10, fy)-(22, fy): next
|
|
_dest 0
|
|
icons(8) = _newimage(32, 32, 32): _dest icons(8)
|
|
' Simple "Bucket" icon
|
|
line (8, 10)-(24, 10): line -(26, 22): line -(6, 22): line -(8, 10)
|
|
line (10, 8)-(22, 8) ' Handle
|
|
_dest 0
|
|
' Fill the remaining slots with blank 32x32 images
|
|
dim j as integer
|
|
for j = 0 to 19
|
|
if icons(j) = 0 then icons(j) = _newimage(32, 32, 32)
|
|
next
|
|
|
|
init = -1
|
|
end if
|
|
|
|
' Bounds checking to prevent returning 0 or crashing
|
|
if index >= 0 and index <= 19 then
|
|
icon = icons(index)
|
|
else
|
|
icon = icons(0)
|
|
end if
|
|
end function
|
|
|
|
'$include: 'include/ui.bm'
|
|
'$include: 'include/imgout.bm'
|
|
'$include: 'include/palette.bm'
|
|
'$include: 'include/tools.bm'
|
|
''$include: 'include/effects.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) 'pulled straight out of the wiki'
|
|
DIM TempScreen AS _UNSIGNED LONG
|
|
CheckResize = 0
|
|
IF _RESIZE THEN
|
|
TempScreen = _COPYIMAGE(CurrentScreen, 32)
|
|
SCREEN TempScreen
|
|
_FREEIMAGE CurrentScreen
|
|
CurrentScreen = _NEWIMAGE(_RESIZEWIDTH, _RESIZEHEIGHT, 32)
|
|
SCREEN CurrentScreen
|
|
_PUTIMAGE (0, 0), TempScreen, CurrentScreen
|
|
_DISPLAY
|
|
_FREEIMAGE TempScreen
|
|
CheckResize = -1
|
|
END IF
|
|
END FUNCTION
|
|
|
|
sub menu()
|
|
dim logo as long
|
|
logo=_loadimage("logo.png")
|
|
Line (0,0)-(_width-1,_height-1),_rgb32(0,192),bf
|
|
do until done
|
|
k$=inkey$
|
|
while _mouseinput:wend
|
|
mouseclicked=mbd and not _mousebutton(1)
|
|
mbd=_mousebutton(1)
|
|
|
|
if link(10,10,"open") then system
|
|
if link(10,34,"save") then system
|
|
if link(10,56,"exit") then system
|
|
|
|
if k$=chr$(27) then done=-1
|
|
_limit 30
|
|
_display
|
|
loop
|
|
end sub
|
|
|
|
sub palettemanager(col as _unsigned long)
|
|
line (0,0)-(_width-1,_height-1),col,bf
|
|
'TODO: build palette mamager ui
|
|
end sub
|
|
|
|
FUNCTION closestcolor~& (colour AS _UNSIGNED LONG, carr() AS _UNSIGNED LONG)
|
|
DIM r AS INTEGER
|
|
DIM g AS INTEGER
|
|
DIM b AS INTEGER
|
|
DIM ar AS INTEGER
|
|
DIM ag AS INTEGER
|
|
DIM ab AS INTEGER
|
|
DIM i AS INTEGER
|
|
DIM nearest AS INTEGER
|
|
DIM shortestdistance AS INTEGER
|
|
DIM distance AS INTEGER
|
|
r = _RED (colour)
|
|
g = _GREEN(colour)
|
|
b = _BLUE (colour)
|
|
shortestdistance = 443
|
|
FOR i = 0 TO UBOUND(carr)
|
|
ar = _RED (carr(i))
|
|
ag = _GREEN(carr(i))
|
|
ab = _BLUE (carr(i))
|
|
distance = SQR((r - ar) ^ 2 + (g - ag) ^ 2 + (b - ab) ^ 2)
|
|
IF distance <= shortestdistance THEN shortestdistance = distance: nearest = i
|
|
NEXT i
|
|
closestcolor = carr(nearest)
|
|
END FUNCTION
|
|
|
|
' trimmed str$
|
|
function tst$(numb)
|
|
tst=_trim$(str$(numb))
|
|
end function
|