~whereswaldon/gio-x: component(context-area): use smarter positioning

eecc69e4bc4cbc55650646a624b066a12d6c450c — Chris Waldon 8 months ago 1a8b0f4

component(context-area): use smarter positioning

If the context area is able to fit the contextual widget inside of itself,
but the default offsetting from the activation gesture's position will
cause the contextual widget to exceed the boundaries of the context area,
the widget will now be displayed on the opposite side of the activating
gesture if it can still fit within the context are there.

Signed-off-by: Chris Waldon <christopher.waldon.dev@gmail.com>

patch browse .tar.gz

1 files changed, 18 insertions(+), 10 deletions(-)

M component/context-area.go

M component/context-area.go => component/context-area.go +18 -10

@@ 128,19 128,27 @@ func (r *ContextArea) Layout(gtx C, w layout.Widget) D {
 
 	if r.active {
 		if int(r.position.X)+r.dims.Size.X > gtx.Constraints.Max.X {
-			switch r.PositionHint {
-			case layout.E, layout.NE, layout.SE:
-				r.position.X = float32(gtx.Constraints.Max.X - r.dims.Size.X)
-			case layout.W, layout.NW, layout.SW:
-				r.position.X = 0
+			if newX := int(r.position.X) - r.dims.Size.X; newX < 0 {
+				switch r.PositionHint {
+				case layout.E, layout.NE, layout.SE:
+					r.position.X = float32(gtx.Constraints.Max.X - r.dims.Size.X)
+				case layout.W, layout.NW, layout.SW:
+					r.position.X = 0
+				}
+			} else {
+				r.position.X = float32(newX)
 			}
 		}
 		if int(r.position.Y)+r.dims.Size.Y > gtx.Constraints.Max.Y {
-			switch r.PositionHint {
-			case layout.S, layout.SE, layout.SW:
-				r.position.Y = float32(gtx.Constraints.Max.Y - r.dims.Size.Y)
-			case layout.N, layout.NE, layout.NW:
-				r.position.Y = 0
+			if newY := int(r.position.Y) - r.dims.Size.Y; newY < 0 {
+				switch r.PositionHint {
+				case layout.S, layout.SE, layout.SW:
+					r.position.Y = float32(gtx.Constraints.Max.Y - r.dims.Size.Y)
+				case layout.N, layout.NE, layout.NW:
+					r.position.Y = 0
+				}
+			} else {
+				r.position.Y = float32(newY)
 			}
 		}
 		// Lay out a transparent scrim to block input to things beneath the