// Left mouse button selects the object clicked on, or drag something already selected.
public override MapViewer.DragAction LeftButtonDown(Pane pane, PointF location, float pixelSize, ref bool displayUpdateNeeded)
{
if (pane != Pane.Map)
{
return(MapViewer.DragAction.None);
}
PointF handleLocation;
// Area we initiating a drag of a corner/side?
if (HitTestHandle(location, pixelSize, out handleLocation, out cursorDrag))
{
// being dragging the corner
draggingHandle = true;
startDrag = location;
handleDrag = handleLocation;
dragStartCourseObj = (SelectingRectangleCourseObj)selectingCourseObj.Clone();
displayUpdateNeeded = true;
return(MapViewer.DragAction.ImmediateDrag);
}
// Are we initiating a drag of the whole object?
if (HitTestDraggable(location, pixelSize))
{
// Begin dragging the clicked object.
draggingWhole = true;
startDrag = location;
dragStartCourseObj = (SelectingRectangleCourseObj)selectingCourseObj.Clone();
displayUpdateNeeded = true;
return(MapViewer.DragAction.ImmediateDrag);
}
return(MapViewer.DragAction.None);
}
bool allowResize = true; // Allow resized with a handle.
public RectangleSelectMode(Controller controller, RectangleF rect, IDisposable disposeOnEndMode)
{
this.controller = controller;
originalRectangle = rect;
this.disposeOnEndMode = disposeOnEndMode;
selectingCourseObj = new SelectingRectangleCourseObj(rect);
}
public override bool Equals(object obj)
{
if (obj == null || GetType() != obj.GetType())
{
return(false);
}
SelectingRectangleCourseObj other = (SelectingRectangleCourseObj)obj;
if (showHandles != other.showHandles)
{
return(false);
}
return(base.Equals(obj));
}
public override void LeftButtonDrag(Pane pane, PointF location, PointF locationStart, float pixelSize, ref bool displayUpdateNeeded)
{
Debug.Assert(pane == Pane.Map);
if (draggingWhole)
{
// Update the rectangle being dragged.
selectingCourseObj = (SelectingRectangleCourseObj)dragStartCourseObj.Clone();
selectingCourseObj.Offset(location.X - startDrag.X, location.Y - startDrag.Y);
}
else if (draggingHandle)
{
// Update the rectangle where the handle is being dragged.
selectingCourseObj = (SelectingRectangleCourseObj)dragStartCourseObj.Clone();
PointF newHandleLocation = new PointF(handleDrag.X + location.X - startDrag.X, handleDrag.Y + location.Y - startDrag.Y);
selectingCourseObj.MoveHandle(handleDrag, newHandleLocation);
}
displayUpdateNeeded = true;
}
public override void LeftButtonDrag(Pane pane, PointF location, PointF locationStart, float pixelSize, ref bool displayUpdateNeeded)
{
Debug.Assert(pane == Pane.Map);
if (draggingWhole) {
// Update the rectangle being dragged.
selectingCourseObj = (SelectingRectangleCourseObj) dragStartCourseObj.Clone();
selectingCourseObj.Offset(location.X - startDrag.X, location.Y - startDrag.Y);
}
else if (draggingHandle) {
// Update the rectangle where the handle is being dragged.
selectingCourseObj = (SelectingRectangleCourseObj) dragStartCourseObj.Clone();
PointF newHandleLocation = new PointF(handleDrag.X + location.X - startDrag.X, handleDrag.Y + location.Y - startDrag.Y);
selectingCourseObj.MoveHandle(handleDrag, newHandleLocation);
}
displayUpdateNeeded = true;
}
// Left mouse button selects the object clicked on, or drag something already selected.
public override MapViewer.DragAction LeftButtonDown(Pane pane, PointF location, float pixelSize, ref bool displayUpdateNeeded)
{
if (pane != Pane.Map)
return MapViewer.DragAction.None;
PointF handleLocation;
// Area we initiating a drag of a corner/side?
if (HitTestHandle(location, pixelSize, out handleLocation, out cursorDrag)) {
// being dragging the corner
draggingHandle = true;
startDrag = location;
handleDrag = handleLocation;
dragStartCourseObj = (SelectingRectangleCourseObj) selectingCourseObj.Clone();
displayUpdateNeeded = true;
return MapViewer.DragAction.ImmediateDrag;
}
// Are we initiating a drag of the whole object?
if (HitTestDraggable(location, pixelSize)) {
// Begin dragging the clicked object.
draggingWhole = true;
startDrag = location;
dragStartCourseObj = (SelectingRectangleCourseObj) selectingCourseObj.Clone();
displayUpdateNeeded = true;
return MapViewer.DragAction.ImmediateDrag;
}
return MapViewer.DragAction.None;
}
PointF startDrag; // location dragging started
#endregion Fields
#region Constructors
public RectangleSelectMode(Controller controller, RectangleF rect, IDisposable disposeOnEndMode)
{
this.controller = controller;
originalRectangle = rect;
this.disposeOnEndMode = disposeOnEndMode;
selectingCourseObj = new SelectingRectangleCourseObj(rect);
}