// local function that draws label and guide lines, and returns true if a handle has been dragged
static bool IsHandleDragged
(int handleMinId, int handleMaxId, Vector3 labelPos, string text, Vector3 lineStart, Vector3 lineEnd)
{
bool handleIsDragged;
bool handleIsDraggedOrHovered;
if (handleMinId == handleMaxId)
{
handleIsDragged = GUIUtility.hotControl == handleMinId;
handleIsDraggedOrHovered = handleIsDragged || HandleUtility.nearestControl == handleMinId;
}
else
{
handleIsDragged = handleMinId < GUIUtility.hotControl && GUIUtility.hotControl < handleMaxId;
handleIsDraggedOrHovered = handleIsDragged ||
(handleMinId < HandleUtility.nearestControl && HandleUtility.nearestControl < handleMaxId);
}
if (handleIsDraggedOrHovered)
{
CinemachineSceneToolHelpers.DrawLabel(labelPos, text);
}
Handles.color = handleIsDraggedOrHovered ?
Handles.selectedColor : CinemachineSceneToolHelpers.HelperLineDefaultColor;
Handles.DrawLine(lineStart, lineEnd, CinemachineSceneToolHelpers.LineThickness);
return(handleIsDragged);
}
void DrawSceneTools()
{
var framingTransposer = Target;
if (framingTransposer == null || !framingTransposer.IsValid)
{
return;
}
if (CinemachineSceneToolUtility.IsToolActive(typeof(TrackedObjectOffsetTool)))
{
CinemachineSceneToolHelpers.TrackedObjectOffsetTool(framingTransposer,
new SerializedObject(framingTransposer).FindProperty(() => framingTransposer.m_TrackedObjectOffset));
}
else if (CinemachineSceneToolUtility.IsToolActive(typeof(FollowOffsetTool)))
{
var originalColor = Handles.color;
var camPos = framingTransposer.VcamState.RawPosition;
var targetForward = framingTransposer.VirtualCamera.State.FinalOrientation * Vector3.forward;
EditorGUI.BeginChangeCheck();
Handles.color = CinemachineSceneToolHelpers.HelperLineDefaultColor;
var cdHandleId = GUIUtility.GetControlID(FocusType.Passive);
var newHandlePosition = Handles.Slider(cdHandleId, camPos, targetForward,
CinemachineSceneToolHelpers.CubeHandleCapSize(camPos), Handles.CubeHandleCap, 0.5f);
if (EditorGUI.EndChangeCheck())
{
// Modify via SerializedProperty for OnValidate to get called automatically, and scene repainting too
var so = new SerializedObject(framingTransposer);
var prop = so.FindProperty(() => framingTransposer.m_CameraDistance);
prop.floatValue -= CinemachineSceneToolHelpers.SliderHandleDelta(newHandlePosition, camPos, targetForward);
so.ApplyModifiedProperties();
}
var cameraDistanceHandleIsDragged = GUIUtility.hotControl == cdHandleId;
var cameraDistanceHandleIsUsedOrHovered = cameraDistanceHandleIsDragged ||
HandleUtility.nearestControl == cdHandleId;
if (cameraDistanceHandleIsUsedOrHovered)
{
CinemachineSceneToolHelpers.DrawLabel(camPos,
"Camera Distance (" + framingTransposer.m_CameraDistance.ToString("F1") + ")");
}
Handles.color = cameraDistanceHandleIsUsedOrHovered ?
Handles.selectedColor : CinemachineSceneToolHelpers.HelperLineDefaultColor;
Handles.DrawLine(camPos,
framingTransposer.FollowTarget.position + framingTransposer.m_TrackedObjectOffset);
CinemachineSceneToolHelpers.SoloOnDrag(cameraDistanceHandleIsDragged, framingTransposer.VirtualCamera,
cdHandleId);
Handles.color = originalColor;
}
}
