preset color buttons rework + curve smoothing

Drawers/Interactions.qml

@@ -123,7 +123,7 @@ Item {
 		property bool setInitialPoint: false
 
 		acceptedButtons: Qt.LeftButton | Qt.RightButton
-		enabled: root.visibilities.isDrawing
+		enabled: root.visibilities.isDrawing && !root.inLeftPanel(root.panels.drawing, hoverHandler.point.position.x, hoverHandler.point.position.y)
 		grabPermissions: PointerHandler.CanTakeOverFromAnything | PointerHandler.TakeOverForbidden
 
 		onActiveChanged: {
@@ -135,15 +135,15 @@ Item {
 			}
 		}
 		onPointChanged: {
-			if (point.pressedButtons & Qt.RightButton) {
-				root.drawing.clear();
-				return;
-			}
-
 			const x = point.position.x;
 			const y = point.position.y;
 			const origX = point.pressPosition.x;
 			const origY = point.pressPosition.y;
+
+			if (point.pressedButtons & Qt.RightButton) {
+				root.drawing.clear();
+				return;
+			}
 			if (x === 0 && y === 0 && origX === 0 && origY === 0)
 				return;
 

Drawers/Windows.qml

@@ -370,6 +370,33 @@ CustomWindow {
 
 		sourceComponent: Drawing {
 			id: drawing
+
+			layer.enabled: true
+
+			layer.effect: MultiEffect {
+				maskEnabled: true
+				maskInverted: true
+				maskSource: maskSource
+			}
+		}
+	}
+
+	Item {
+		id: maskSource
+
+		anchors.fill: parent
+		layer.enabled: true
+		visible: false
+
+		CustomRect {
+			readonly property int extraWidth: radius
+
+			color: "white"
+			implicitHeight: panels.drawing.height
+			implicitWidth: panels.drawing.width + extraWidth
+			radius: drawingBg.radius
+			x: -extraWidth + root.borderThickness + panels.drawing.x
+			y: panels.drawing.y + bar.implicitHeight
 		}
 	}