Initial project import

sdk/agila/ui.fv

@@ -0,0 +1,64 @@
+// Safe application-level UI model. Rendering is provided by the proprietary Agila runtime.
+module agila
+
+pub struct Color {
+pub:
+    r u8
+    g u8
+    b u8
+    a u8 = 255
+}
+
+pub fn rgb(hex u32) Color {
+    return Color{
+        r: u8((hex >> 16) & 0xff)
+        g: u8((hex >> 8) & 0xff)
+        b: u8(hex & 0xff)
+    }
+}
+
+pub struct Theme {
+pub:
+    background Color
+    surface Color
+    text Color
+    accent Color
+}
+
+pub fn default_theme() Theme {
+    return Theme{
+        background: rgb(0x08080e)
+        surface: rgb(0x171827)
+        text: rgb(0xf5f1ff)
+        accent: rgb(0xc084fc)
+    }
+}
+
+pub interface Widget {
+    describe() string
+}
+
+pub struct Text {
+pub:
+    value string
+}
+
+pub fn (t Text) describe() string { return 'Text(${t.value})' }
+
+pub struct Button {
+pub:
+    label string
+}
+
+pub fn (b Button) describe() string { return 'Button(${b.label})' }
+
+pub struct Column {
+pub:
+    children []Widget
+}
+
+pub fn (c Column) describe() string { return 'Column(${c.children.len} children)' }
+
+pub fn preview(widget Widget) {
+    println('[Agila SDK sandbox UI] ${widget.describe()}')
+}