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Made the Quantum gate Div Dragable and resizable. #21

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Merged
Dark-CodeX merged 1 commit into from
Aug 18, 2025
Merged

Made the Quantum gate Div Dragable and resizable. #21

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62 changes: 55 additions & 7 deletions qubitverse/visualizer/src/components/QuantumCircuit.jsx
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Original file line number Diff line number Diff line change
Expand Up @@ -16,6 +16,7 @@ const gateSize = 45; // width/height for single-qubit gate squares
const canvasMinX = 50; // left bound for gates on the stage
const canvasMaxX = window.innerWidth - 300 - gateSize; // right bound so gate stays visible


// =======================
// GATE LIST
// =======================
Expand Down Expand Up @@ -910,6 +911,33 @@ const QuantumCircuit = ({ numQubits, setNumQubits }) => {

setMeasurementHist([]);
}
const [Dragging, setDragging] = useState(false);
const [position, setPosition] = useState({ x: 100, y: 100 });
const [offset, setOffset] = useState({ x: 0, y: 0 });
const boxRef = useRef(null);

const startDrag = (e) => {
setDragging(true);
setOffset({ x: e.clientX - position.x, y: e.clientY - position.y });
};

const handleMouseMove = (e) => {
if (!Dragging) return;
setPosition({ x: e.clientX - offset.x, y: e.clientY - offset.y });
};

const handleMouseUp = () => setDragging(false);

useEffect(() => {
if (Dragging) {
window.addEventListener("mousemove", handleMouseMove);
window.addEventListener("mouseup", handleMouseUp);
}
return () => {
window.removeEventListener("mousemove", handleMouseMove);
window.removeEventListener("mouseup", handleMouseUp);
};
}, [Dragging, offset]);

return (
<MathJaxContext>
Expand All @@ -935,19 +963,39 @@ const QuantumCircuit = ({ numQubits, setNumQubits }) => {
</div>

{/* Left Menu: single box with gates on top and 3 buttons below */}
<div

<div
style={{
float:"left",
width: "17%",
position: "absolute", // important for dragging
left: position.x,
top: position.y,
width: "18%",
height:"350px",
border: "3px solid black",
borderRadius: "5px",
background: "white",
padding: "10px",
zIndex: 10, // keep above the stage
paddingBottom: "10px",
paddingRight: "10px",
paddingLeft: "10px",
zIndex: 5000, // keep above the stage
resize: "vertical",
overflowY: "auto",
cursor: Dragging ? "grabbing" : "grab",
scrollbarWidth: "none"

}}
>
<div ref={boxRef} onMouseDown={startDrag}
style={{
position:"sticky",
top:"0",
width:"100%",
background:"#fff",
paddingTop:"10px"

}}>
<h2 className="text-l font-bold text-gray-800" style={{ userSelect: "none", textAlign: "center" }}>Quantum Gates</h2>
</div>
{/* Gates box */}
<div
style={{
Expand All @@ -962,7 +1010,7 @@ const QuantumCircuit = ({ numQubits, setNumQubits }) => {
justifyContent: "space-evenly",
marginBottom: "10px",
overflowY: "auto",
scrollbarWidth:"none"
scrollbarWidth:"none",
}}
>
{gatesList.map((gate, index) => {
Expand Down Expand Up @@ -1039,7 +1087,7 @@ const QuantumCircuit = ({ numQubits, setNumQubits }) => {
{/* Right Content: depends on active tab */}
<div
style={{
width:"80%",
width:"100%",
flex:1,
position: "relative",
float:"right"
Expand Down