|
public GetPreferredSize ( IRenderer renderer, |
||
| renderer | IRenderer | Renderer provider. |
| proposedSize | The custom-sized area for a control. | |
| return | ||
/// <summary>
/// Show the tooltip popup relative to the provided screen position.
/// </summary>
/// <param name="screenRect">Screen position to display relative to.</param>
public void ShowCalculatingSize(Rectangle screenRect)
{
// Get the size the popup would like to be
Size popupSize = ViewManager.GetPreferredSize(Renderer, Size.Empty);
// Find the screen position the popup will be relative to
screenRect = new Rectangle(screenRect.X, screenRect.Y - VERT_OFFSET,
screenRect.Width, screenRect.Height + (VERT_OFFSET * 2));
// Show it now!
Show(screenRect, popupSize);
}
/// <summary>
/// Show the tooltip popup relative to the provided screen position.
/// </summary>
/// <param name="controlMousePosition">Screen point of cursor.</param>
public void ShowCalculatingSize(Point controlMousePosition)
{
// Get the size the popup would like to be
Size popupSize = ViewManager.GetPreferredSize(Renderer, Size.Empty);
// Find the screen position the popup will be relative to
Point currentCursorHotSpot = CommonHelper.CaptureCursor();
controlMousePosition.Offset(currentCursorHotSpot.X + 2, currentCursorHotSpot.Y + 2);
// Show it now!
Show(controlMousePosition, popupSize);
}
/// <summary>
/// Show the tooltip popup relative to the provided screen position.
/// </summary>
/// <param name="screenPt">Screen point of cursor.</param>
public void ShowCalculatingSize(Point screenPt)
{
// Get the size the popup would like to be
Size popupSize = ViewManager.GetPreferredSize(Renderer, Size.Empty);
// Find the screen position the popup will be relative to
Rectangle screenRect = new Rectangle(screenPt.X + HORZ_OFFSET - (popupSize.Width / 2),
screenPt.Y - VERT_OFFSET,
1, VERT_OFFSET * 2);
// Show it now!
Show(screenRect, popupSize);
}
/// <summary>
/// Get the preferred size of the control based on a proposed size.
/// </summary>
/// <param name="proposedSize">Starting size proposed by the caller.</param>
/// <returns>Calculated preferred size.</returns>
public override Size GetPreferredSize(Size proposedSize)
{
// Do we have a manager to ask for a preferred size?
if (ViewManager != null)
{
// Ask the view to peform a layout
Size retSize = ViewManager.GetPreferredSize(Renderer, proposedSize);
// Apply the maximum sizing
if (MaximumSize.Width > 0)
{
retSize.Width = Math.Min(MaximumSize.Width, retSize.Width);
}
if (MaximumSize.Height > 0)
{
retSize.Height = Math.Min(MaximumSize.Height, retSize.Width);
}
// Apply the minimum sizing
if (MinimumSize.Width > 0)
{
retSize.Width = Math.Max(MinimumSize.Width, retSize.Width);
}
if (MinimumSize.Height > 0)
{
retSize.Height = Math.Max(MinimumSize.Height, retSize.Height);
}
return(retSize);
}
else
{
// Fall back on default control processing
return(base.GetPreferredSize(proposedSize));
}
}
/// <summary>
/// Use the setting from the Positioning to display the tooltip
/// </summary>
/// <param name="target"></param>
/// <param name="controlMousePosition"></param>
public void ShowRelativeTo(ViewBase target, Point controlMousePosition)
{
PopupPositionValues position;
if (_contentValues is ToolTipValues toolTipValues)
{
position = toolTipValues.ToolTipPosition;
}
else
{
position = new PopupPositionValues();
}
Point currentCursorHotSpot = CommonHelper.CaptureCursor();
Rectangle positionPlacementRectangle = position.PlacementRectangle;
switch (position.PlacementMode)
{
case PlacementMode.Absolute:
case PlacementMode.AbsolutePoint:
// The screen, or PlacementRectangle if it is set.
// So do nothing !
break;
case PlacementMode.Mouse:
case PlacementMode.MousePoint:
// The bounds of the mouse pointer. PlacementRectangle is ignored
positionPlacementRectangle = new Rectangle(controlMousePosition.X, controlMousePosition.Y, currentCursorHotSpot.X + 2, currentCursorHotSpot.Y + 2);
break;
default:
// The screen, or PlacementRectangle if it is set. The PlacementRectangle is relative to the screen.
if (positionPlacementRectangle.IsEmpty)
{
// PlacementTarget or parent.
positionPlacementRectangle =
position.PlacementTarget?.ClientRectangle ?? target.ClientRectangle;
positionPlacementRectangle = (position.PlacementTarget?.OwningControl ?? target.OwningControl).RectangleToScreen(positionPlacementRectangle);
}
else
{
positionPlacementRectangle = Screen.GetWorkingArea(controlMousePosition);
}
break;
}
// Get the size the popup would like to be
Size popupSize = ViewManager.GetPreferredSize(Renderer, Size.Empty);
Point popupLocation;
switch (position.PlacementMode)
{
case PlacementMode.Absolute:
case PlacementMode.AbsolutePoint:
case PlacementMode.MousePoint:
case PlacementMode.Relative:
case PlacementMode.RelativePoint:
// The top-left corner of the target area. The top-left corner of the Popup.
popupLocation = positionPlacementRectangle.Location;
if (positionPlacementRectangle.IntersectsWith(new Rectangle(controlMousePosition, (Size)currentCursorHotSpot)))
{
// TODO: SKC: Should really get the HotSpot from the Icon and use that !
popupLocation.X = controlMousePosition.X + 4; // Still might "Bounce back" due to offscreen location
}
break;
case PlacementMode.Bottom:
case PlacementMode.Mouse:
// The bottom-left corner of the target area. The top-left corner of the Popup.
popupLocation = new Point(positionPlacementRectangle.Left, positionPlacementRectangle.Bottom);
break;
case PlacementMode.Center:
// The center of the target area. The center of the Popup.
popupLocation = positionPlacementRectangle.Location;
popupLocation.Offset(popupSize.Width / 2, -popupSize.Height / 2);
if (positionPlacementRectangle.IntersectsWith(new Rectangle(controlMousePosition, (Size)currentCursorHotSpot)))
{
// TODO: SKC: Should really get the HotSpot from the Icon and use that !
popupLocation.X = controlMousePosition.X + 4; // Still might "Bounce back" due to offscreen location
}
break;
case PlacementMode.Left:
// The top-left corner of the target area. The top-right corner of the Popup.
popupLocation = new Point(positionPlacementRectangle.Left - popupSize.Width, positionPlacementRectangle.Top);
break;
case PlacementMode.Right:
// The top-right corner of the target area. The top-left corner of the Popup.
popupLocation = new Point(positionPlacementRectangle.Right, positionPlacementRectangle.Top);
break;
case PlacementMode.Top:
// The top-left corner of the target area. The bottom-left corner of the Popup.
popupLocation = new Point(positionPlacementRectangle.Left, positionPlacementRectangle.Top - popupSize.Height);
break;
default:
throw new ArgumentOutOfRangeException();
}
// Show it now!
Show(popupLocation, popupSize);
}
