public Point TransformGlobalToLocal(Point ptGlobal)
{
POINT pointLocal = new POINT();
POINT pointGlobal = new POINT();
pointGlobal.x = ptGlobal.X;
pointGlobal.y = ptGlobal.Y;
HTMLPaintSite.TransformGlobalToLocal(pointGlobal, ref pointLocal);
return(new Point(pointLocal.x, pointLocal.y));
}
private void InvalidateControlPadding()
{
if (Attached)
{
//Warning: force a full invalidation of the current paint area before invalidating
//the painter info so that we don't accidentally shrink the paintable region before
//we've had a chance clear everything that was previously painted.
Invalidate();
HTMLPaintSite.InvalidatePainterInfo();
}
}
private Rectangle CalculateWidgetScreenBounds()
{
// translate local location to client location
POINT localLocation = new POINT();
localLocation.x = _widgetLocation.X ;
localLocation.y = _widgetLocation.Y ;
POINT clientLocation = new POINT();
HTMLPaintSite.TransformLocalToGlobal(localLocation, ref clientLocation);
Point screenLocation = EditorContext.PointToScreen(new Point(clientLocation.x, clientLocation.y)) ;
return new Rectangle(screenLocation, new Size(_widgetArea.Width, _widgetArea.Height) );
}
private bool ClientPointInWidget( int x, int y )
{
// calculate mouse position in local coordinates
POINT clientMouseLocation = new POINT();
clientMouseLocation.x = x ;
clientMouseLocation.y = y ;
POINT localMouseLocation = new POINT();
HTMLPaintSite.TransformGlobalToLocal( clientMouseLocation, ref localMouseLocation ) ;
// is the mouse in the widget?
return _widgetArea.Contains( localMouseLocation.x, localMouseLocation.y ) ;
}
protected void SetPadding(int top, int right, int bottom, int left)
{
if (topPadding == top && rightPadding == right && bottomPadding == bottom && leftPadding == left)
{
return;
}
topPadding = top;
rightPadding = right;
bottomPadding = bottom;
leftPadding = left;
SynchronizeElementRectangle();
HTMLPaintSite.InvalidatePainterInfo();
Invalidate();
}
protected Point TranslateClientPointToBounds(Point p)
{
// calculate mouse position in local coordinates
POINT clientMouseLocation = new POINT();
clientMouseLocation.x = p.X;
clientMouseLocation.y = p.Y;
POINT localMouseLocation = new POINT();
HTMLPaintSite.TransformGlobalToLocal(clientMouseLocation, ref localMouseLocation);
Point pBounds = new Point(localMouseLocation.x - LeftPadding, localMouseLocation.y - TopPadding);
return(pBounds);
}
/// <summary>
/// Translates a client rectangle into the rectangle defined by the drawing bounds.
/// </summary>
/// <param name="clientRectangle"></param>
/// <param name="rcBounds"></param>
/// <returns></returns>
protected Rectangle GetPaintRectangle(Rectangle clientRectangle, RECT rcBounds)
{
POINT globalPoint = new POINT();
globalPoint.x = clientRectangle.Left;
globalPoint.y = clientRectangle.Top;
POINT localPoint = new POINT();
HTMLPaintSite.TransformGlobalToLocal(globalPoint, ref localPoint);
Rectangle converted = new Rectangle(localPoint.x + rcBounds.left, localPoint.y + rcBounds.top,
clientRectangle.Right - clientRectangle.Left, clientRectangle.Bottom - clientRectangle.Top);
return(converted);
}
