1 files changed, 64 insertions, 0 deletions
diff --git a/geom.go b/geom.go
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+++ b/geom.go
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+package widget
+
+/*
+	2D geometry values
+
+	There are lots of issues when supporting multiple toolkit plugin
+	geometries. The geometries vary widely especially between the
+	graphical displays and the serial console ones.
+
+	To simplyfy this, we stick to using the concepts:
+
+	------------------------------        ^
+	|             top             |       |
+	|                             |       |
+	|  left                right  |    height
+	|                             |       |
+	|            bottom           |       |
+	------------------------------        v
+
+	<----------- width ---------->
+
+	This way, width & height are always positive numbers.
+
+	The qustion of (top,bottom) & (left,right) becomes problematic.
+
+	In almost every toolkit, right > left. However, top & bottom
+	vary and a choice can not be made easily. Luckily, we maybe do
+	not have to make that decision here and can pass that determination
+	to the toolkits. So, we use excusively:
+
+	geom(left, right, top, bottom)
+	size(width, height)
+*/
+
+type Geom struct {
+	Left any
+	Right any
+	Top any
+	Bottom any
+}
+
+type Size struct {
+	Width any
+	Height any
+}
+
+type Orientation int // Add, SetText, Click, Hide, Append, Delete, etc
+
+const (
+	Horizontal Orientation = iota
+	Vertical
+)
+
+func (s Orientation) String() string {
+	switch s {
+	case Horizontal:
+		return "Horizontal"
+	case Vertical:
+		return "Vertical"
+	default:
+		return "Horizontal"
+	}
+	return "Horizontal"
+}