Merge "Add unit tests for region box state class" into main

import kotlin.math.roundToInt

// The different modes of interaction that the user can have with the RegionBox.

private enum class DragMode {

enum class DragMode {

    DRAWING,

    MOVING,

    RESIZING,

 * @param minSizePx The minimum size of the box in pixels.

 * @param touchAreaPx The size of the touch area for resizing in pixels.

 */

private class RegionBoxState(private val minSizePx: Float, private val touchAreaPx: Float) {

class RegionBoxState(private val minSizePx: Float, private val touchAreaPx: Float) {

    var rect by mutableStateOf<Rect?>(null)

        private set

    var dragMode by mutableStateOf(DragMode.NONE)

    var isHoveringButton by mutableStateOf(false)

    // The offset of the initial press when the user starts a drag gesture.

    private var newBoxStartOffset by mutableStateOf(Offset.Zero)

    var newBoxStartOffset by mutableStateOf(Offset.Zero)

    // Must remember the screen size for the drag logic. Initial values are set to 0.

    var screenWidth by mutableStateOf(0f)