Horizontal layouts now take into account flexible elements

elements/basic/container.go

@@ -300,7 +300,7 @@ func (element *Container) HandleSelection (direction tomo.SelectionDirection) (o
 	return false
 }
 
-// TODO: fix this!
+// FIXME: fix this!
 // func (element *Container) MinimumHeightFor (width int) (height int) {
 	// return element.layout.MinimumHeightFor(element.children, width)
 // }

examples/horizontalLayout/main.go

@@ -3,7 +3,6 @@ package main
 import "git.tebibyte.media/sashakoshka/tomo"
 import "git.tebibyte.media/sashakoshka/tomo/layouts"
 import "git.tebibyte.media/sashakoshka/tomo/elements/basic"
-import "git.tebibyte.media/sashakoshka/tomo/elements/testing"
 import _ "git.tebibyte.media/sashakoshka/tomo/backends/x"
 
 func main () {
@@ -11,15 +10,15 @@ func main () {
 }
 
 func run () {
-	window, _ := tomo.NewWindow(2, 2)
+	window, _ := tomo.NewWindow(256, 2)
 	window.SetTitle("horizontal stack")
 
 	container := basic.NewContainer(layouts.Horizontal { true, true })
 	window.Adopt(container)
 
-	container.Adopt(testing.NewMouse(), true)
-	container.Adopt(basic.NewLabel("<- left\nright ->", false), false)
-	container.Adopt(testing.NewMouse(), true)
+	container.Adopt(basic.NewLabel("this is sample text", true), true)
+	container.Adopt(basic.NewLabel("this is sample text", true), true)
+	container.Adopt(basic.NewLabel("this is sample text", true), true)
 	
 	window.OnClose(tomo.Stop)
 	window.Show()

layouts/horizontal.go

@@ -72,7 +72,6 @@ func (layout Horizontal) Arrange (entries []tomo.LayoutEntry, width, height int)
 // arrange the given list of entries.
 func (layout Horizontal) MinimumSize (
 	entries []tomo.LayoutEntry,
-	squeeze int,
 ) (
 	width, height int,
 ) {
@@ -93,3 +92,31 @@ func (layout Horizontal) MinimumSize (
 	}
 	return
 }
+
+func (layout Horizontal) MinimumHeightFor (
+	entries []tomo.LayoutEntry,
+	width int,
+) (
+	height int,
+) {
+	if layout.Pad {
+		width -= theme.Padding() * 2
+	}
+
+	for _, entry := range entries {
+		var entryHeight int
+		if child, flexible := entry.Element.(tomo.Flexible); flexible {
+			entryHeight = child.MinimumHeightFor(width)
+		} else {
+			_, entryHeight = entry.MinimumSize()
+		}
+		if entryHeight > height {
+			height = entryHeight
+		}
+	}
+
+	if layout.Pad {
+		height += theme.Padding() * 2
+	}
+	return
+}