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layout: simplified Axis methods

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Removed the Main and Cross Axis methods in favor of Convert.

Signed-off-by: pierre <pierre.curto@gmail.com>
This commit is contained in:
pierre
2021-01-14 09:50:11 +01:00
committed by Elias Naur
parent d331dd2de8
commit e088833caf
3 changed files with 31 additions and 44 deletions
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layout/layout.go
+6 -23
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@@ -225,31 +225,14 @@ func (a Alignment) String() string {
}
}
// Main returns the main axis of p.
// I.e. if a is Horizontal, then the returned value is p.X.
func (a Axis) Main(p image.Point) int {
// Convert a point in (x, y) coordinates to (main, cross) coordinates,
// or vice versa. Specifically, Convert((x, y)) returns (x, y) unchanged
// for the horizontal axis, or (y, x) for the vertical axis.
func (a Axis) Convert(pt image.Point) image.Point {
if a == Horizontal {
return p.X
return pt
}
return p.Y
}
// Cross returns the cross axis of p.
// I.e. if a is Horizontal, then the returned value is p.Y.
func (a Axis) Cross(p image.Point) int {
if a == Horizontal {
return p.Y
}
return p.X
}
// point returns the point having its values set based on the axis.
// I.e. if a is Horizontal, then the returned value is image.Point{X: main, Y: cross}.
func (a Axis) point(main, cross int) image.Point {
if a == Horizontal {
return image.Pt(main, cross)
}
return image.Pt(cross, main)
return image.Pt(pt.Y, pt.X)
}
// mainConstraint returns the min and max main constraints for axis a.