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Add orx-image-fit

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This commit is contained in:
Edwin Jakobs
2020-02-10 23:37:05 +01:00
parent ac9d0bb4f9
commit 77dee0c6af
2 changed files with 44 additions and 17 deletions
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37
orx-image-fit/src/main/kotlin/ImageFit.kt
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@@ -11,7 +11,16 @@ enum class FitMethod {
Contain
}
fun Drawer.imageFit(img: ColorBuffer, x: Double = 0.0, y: Double = 0.0, w: Double, h: Double, fitMethod:FitMethod = FitMethod.Cover, horizontalPosition:Double = 0.0, verticalPosition:Double = 0.0) {
fun Drawer.imageFit(
img: ColorBuffer,
x: Double = 0.0,
y: Double = 0.0,
width: Double = img.width.toDouble(),
height: Double = img.height.toDouble(),
fitMethod: FitMethod = FitMethod.Cover,
horizontalPosition: Double = 0.0,
verticalPosition: Double = 0.0
) {
val sourceWidth = img.width.toDouble()
val sourceHeight = img.height.toDouble()
@@ -26,23 +35,23 @@ fun Drawer.imageFit(img: ColorBuffer, x: Double = 0.0, y: Double = 0.0, w: Doubl
when (fitMethod) {
FitMethod.Contain -> {
targetWidth = w
targetHeight = h
targetWidth = width
targetHeight = height
if (w <= targetWidth) {
targetWidth = w
targetHeight = (sourceHeight / sourceWidth) * w
if (width <= targetWidth) {
targetWidth = width
targetHeight = (sourceHeight / sourceWidth) * width
}
if (h <= targetHeight) {
targetHeight = h
targetWidth = (sourceWidth / sourceHeight) * h
if (height <= targetHeight) {
targetHeight = height
targetWidth = (sourceWidth / sourceHeight) * height
}
val left = x
val right = x + w - targetWidth
val right = x + width - targetWidth
val top = y
val bottom = y + h - targetHeight
val bottom = y + height - targetHeight
targetX = map(-1.0, 1.0, left, right, horizontalPosition)
targetY = map(-1.0, 1.0, top, bottom, verticalPosition)
@@ -57,12 +66,12 @@ fun Drawer.imageFit(img: ColorBuffer, x: Double = 0.0, y: Double = 0.0, w: Doubl
if (sourceWidth <= targetWidth) {
targetWidth = sourceWidth
targetHeight = (h / w) * sourceWidth
targetHeight = (height / width) * sourceWidth
}
if (sourceHeight <= targetHeight) {
targetHeight = sourceHeight
targetWidth = (w / h) * sourceHeight
targetWidth = (width / height) * sourceHeight
}
val left = 0.0
@@ -74,7 +83,7 @@ fun Drawer.imageFit(img: ColorBuffer, x: Double = 0.0, y: Double = 0.0, w: Doubl
targetY = map(-1.0, 1.0, top, bottom, verticalPosition)
source = Rectangle(targetX, targetY, targetWidth, targetHeight)
target = Rectangle(x, y, w, h)
target = Rectangle(x, y, width, height)
}
}