fix: merge two strokecanvas into one + better cursorShape and pointer handling

Helpers/Picker/AnnotationCanvas.qml

@@ -8,13 +8,13 @@ Item {
 
 	property color inkColor: "#ff3b30"
 	property real inkWidth: 4
+	required property Rectangle selection
 	property string tool: "none"
 
 	signal changed
 
 	function clearAll() {
-		committedCanvas.clear();
-		previewCanvas.clear();
+		canvas.clear();
 		changed();
 	}
 
@@ -54,89 +54,82 @@ Item {
 	}
 
 	function undo() {
-		committedCanvas.undoLastGroup();
+		canvas.undoLastGroup();
 		changed();
 	}
 
 	anchors.fill: parent
 
 	StrokeCanvas {
-		id: committedCanvas
+		id: canvas
 
 		anchors.fill: parent
 		penColor: root.inkColor
 		penWidth: root.inkWidth
 	}
 
-	StrokeCanvas {
-		id: previewCanvas
-
-		anchors.fill: parent
-		penColor: root.inkColor
-		penWidth: root.inkWidth
-	}
-
-	PointHandler {
+	MouseArea {
 		id: drawHandler
 
 		property real startX
 		property real startY
-		property bool started: false
 
 		acceptedButtons: Qt.LeftButton | Qt.RightButton
+		anchors.fill: parent
+		cursorShape: undefined
 		enabled: root.tool !== "none"
+		hoverEnabled: true
 
-		onActiveChanged: {
-			if (active)
+		onPositionChanged: e => {
+			const x = e.x;
+			const y = e.y;
+
+			canvas.hoverPoint = Qt.point(x, y);
+
+			if (!pressed)
 				return;
 
 			if (root.tool === "pen") {
-				committedCanvas.endStroke();
-			} else if (started) {
-				const pts = root.sampleShape(root.tool, startX, startY, point.position.x, point.position.y);
-				if (pts.length > 0) {
-					committedCanvas.beginStroke(pts[0][0], pts[0][1], true);
-					for (let i = 1; i < pts.length; i++)
-						committedCanvas.appendPoint(pts[i][0], pts[i][1]);
-					committedCanvas.endStroke();
-				}
-				previewCanvas.clear();
-			}
-			started = false;
-			root.changed();
-		}
-		onPointChanged: {
-			if (!active)
+				canvas.appendPoint(x, y);
 				return;
+			}
 
-			if (point.pressedButtons & Qt.RightButton) {
-				root.clearAll();
-				return;
+			const pts = root.sampleShape(root.tool, startX, startY, x, y);
+			if (pts.length > 0) {
+				canvas.beginStroke(pts[0][0], pts[0][1], true);
+				for (let i = 1; i < pts.length; i++)
+					canvas.appendPoint(pts[i][0], pts[i][1]);
 			}
+		}
+		onPressed: e => {
+			if (e.button & Qt.LeftButton) {
+				startX = e.x;
+				startY = e.y;
+				canvas.beginStroke(e.x, e.y);
+			} else if (e.button & Qt.RightButton) {
+				root.clearAll();
+			}
+		}
+		onPressedChanged: if (!pressed)
+			canvas.endStroke()
+	}
+
+	HoverHandler {
+		cursorShape: {
+			if (root.tool === "none")
+				return undefined;
 
 			const x = point.position.x;
 			const y = point.position.y;
+			const withinXWidth = x > root.selection.x && x < root.selection.x + root.selection.implicitWidth;
+			const withinYHeight = y > root.selection.y && y < root.selection.y + root.selection.implicitHeight;
 
-			if (root.tool === "pen") {
-				if (!started) {
-					started = true;
-					committedCanvas.beginStroke(x, y);
-					return;
-				}
-				committedCanvas.appendPoint(x, y);
-				return;
-			}
-
-			if (!started) {
-				started = true;
-				startX = point.pressPosition.x;
-				startY = point.pressPosition.y;
-			}
-			const pts = root.sampleShape(root.tool, startX, startY, x, y);
-			if (pts.length > 0) {
-				previewCanvas.beginStroke(pts[0][0], pts[0][1], true);
-				for (let i = 1; i < pts.length; i++)
-					previewCanvas.appendPoint(pts[i][0], pts[i][1]);
+			if (withinXWidth && withinYHeight) {
+				canvas.showHover(x, y);
+				return Qt.BlankCursor;
+			} else {
+				canvas.hideHover();
+				return undefined;
 			}
 		}
 	}