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package effectsplayground.control;
import javafx.scene.*;
import javafx.scene.paint.*;
import javafx.scene.shape.*;
import javafx.scene.transform.*;
import javafx.stage.*;
public class Knob extends CustomNode {
public var value = 0.0;
public var minimum = 0.0;
public var maximum = 1.0;
public var minAngle = -180.0;
public var maxAngle = 0.0;
public var width = 25;
var adjValue = bind (value - minimum)/(maximum - minimum);
var origValue = 0.0;
override protected function create():Node {
Group {
cursor: Cursor.HAND
content: [
Circle {
radius: bind width/2
fill:LinearGradient {
startX: 0
startY: 0
endX: 0
endY: 1
stops: [
Stop {
offset: 0.0
color: Color.rgb(172, 172, 172)
},
Stop {
offset: 0.5
color: Color.rgb(115, 115, 115)
},
Stop {
offset: 1.0
color: Color.rgb(130, 130, 130)
},
]
}
stroke:LinearGradient {
startX: 0
startY: 0
endX: 0
endY: 1
stops: [
Stop {
offset: 0.0
color: Color.rgb( 69, 69, 69)
},
Stop {
offset: 1.0
color: Color.rgb(224, 224, 224)
},
]
}
strokeWidth: 2
},
Circle {
centerX: 0.5
centerY: 0.5
radius: 5
},
Line {
transforms:Rotate {
angle: bind maxAngle - (adjValue * (maxAngle-minAngle))
}
endX: bind width/2 + 2
endY: 0
stroke: Color.WHITE
strokeWidth: 2.5
},
Line {
transforms:Rotate { angle: bind maxAngle - (adjValue * (maxAngle-minAngle)) }
endX: bind width/2 + 2
endY: 0
stroke:LinearGradient {
startX: 0
startY: 0
endX: 0
endY: 1
stops: [
Stop {
offset: 0.0
color: Color.rgb( 40, 40, 40)
},
Stop {
offset: 1.0
color: Color.rgb(102, 102, 102)
},
]
}
}
]
onMousePressed:function(e) {
origValue = adjValue;
}
onMouseDragged:function(e) {
var v = origValue + (e.dragX/width);
if (v < 0) {
v = 0;
} else if (v > 1) {
v = 1;
}
value = minimum + (v*(maximum-minimum));
}
}
}
}
function run() {
Stage {
width: 300
height: 100
scene:Scene {
content: [
Knob {
translateX: 20
translateY: 20
minimum: 0
maximum: 180
value: 45
}
]
}
}
}