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2025-07-31 16:05:55 +08:00

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--macroScript MicroPaint category: "HowTo"
(
global MicroPaint_CanvasRollout
try (destroyDialog MicroPaint_CanvasRollout) catch()
local isDrawing = false
local bitmapX = bitmapY = 512
global theCanvasBitmap = bitmap bitmapX bitmapY color:white
local currentPos = lastPos = [0,0]
rollout MicroPaint_CanvasRollout "MicroPaint"
(
bitmap theCanvas pos:[0,0] width:bitmapX height:bitmapY bitmap:theCanvasBitmap
colorpicker inkColor height:16 modal:false color:black across:4
checkbutton airBrush "AirBrush"width:50
spinner AirBrushSpeed "Speed" range:[0.1,50,10] fieldwidth:30
spinner BrushSize "Size" range:[1,50,10] type:#integer fieldwidth:40
listbox BrushShape items:#("Circle","Box","Circle Smooth") pos:[bitmapX+5,0] width:90
dotNetControl f1 "Windows.Forms.PictureBox" align:#left height:bitmapY width:bitmapX pos:[bitmapX+100,0]
fn paintBrush pos =
(
case BrushShape.selection of
(
1: (
if distance pos currentPos <= BrushSize.value/2 do
setPixels theCanvasBitmap pos #(inkColor.color)
)
2: setPixels theCanvasBitmap pos #(inkColor.color)
3: (
theFactor = (distance pos currentPos) / (BrushSize.value/2.0)
if theFactor <= 1.0 do
(
theFactor = sin ( 90.0 * theFactor)
thePixels = getPixels theCanvasBitmap pos 1
if thePixels[1] != undefined do
(
thePixels[1] = (thePixels[1] * theFactor) + (inkColor.color * (1.0 - theFactor))
setPixels theCanvasBitmap pos thePixels
)
)
)--end case 3
)--end case
)--end fn
fn drawStroke lastPos pos =
(
currentPos = lastPos
deltaX = pos.x - lastPos.x
deltaY = pos.y - lastPos.y
maxSteps = amax #(abs(deltaX),abs(deltaY))
deltaStepX = deltaX / maxSteps
deltaStepY = deltaY / maxSteps
for i = 0 to maxSteps do
(
if airBrush.checked then
(
for b = 1 to (BrushSize.value / AirBrushSpeed.value) do
paintBrush (currentPos + (random [-BrushSize.value/2,-BrushSize.value/2] [BrushSize.value/2,BrushSize.value/2] ))
)
else
for b = -BrushSize.value/2 to BrushSize.value/2 do
for c = -BrushSize.value/2 to BrushSize.value/2 do
paintBrush (currentPos + [c,b])
currentPos += [deltaStepX, deltaStepY]
)
theCanvas.bitmap = theCanvasBitmap
/*
local grab_bmp1
grab_bmp1 = bitmap 512 512 color:white
copy theCanvasBitmap grab_bmp1
grab_bmp1.filename ="D:\\Desktop\\123.png"
save grab_bmp1
f1.ImageLocation="D:\\Desktop\\123.png"
*/
)
on MicroPaint_CanvasRollout lbuttondown pos do
(
lastPos = pos
isDrawing = true
drawStroke lastPos pos
)
on MicroPaint_CanvasRollout lbuttonup pos do isDrawing = false
on MicroPaint_CanvasRollout mousemove pos do
(
if isDrawing do drawStroke lastPos pos
lastPos = pos
)
)
createDialog MicroPaint_CanvasRollout (bitmapx+620) (bitmapy+30)
)
/*
clearlistener(); showProperties MicroPaint_CanvasRollout.f1
MicroPaint_CanvasRollout.f1.ImageLocation="D:\\Desktop\\123.png"
show MicroPaint_CanvasRollout.theCanvas.bitmap
-- MicroPaint_CanvasRollout.f1.image= (dotnetclass "System.Drawing.Graphics").FromImage
*/