private void DrawZoomWindow(MouseEventArgs args)
{
mouseUpPoint.X = args.X;
mouseUpPoint.Y = args.Y;
if (this.NeedToEraseRubber)
{
DrawXORFrame();
}
if (ClientRectangle.Contains(PointToClient(Control.MousePosition)))
{
rubberRect = GViewer.RectFromPoints(PointToScreen(mouseDownPoint), PointToScreen(mouseUpPoint));
DrawXORFrame();
}
}
protected override void OnMouseUp(MouseEventArgs args)
{
base.OnMouseUp(args);
MsaglMouseEventArgs iArgs = CreateMouseEventArgs(args);
gViewer.RaiseMouseUpEvent(iArgs);
if (NeedToEraseRubber)
{
DrawXorFrame();
}
if (!iArgs.Handled)
{
if (gViewer.OriginalGraph != null && MouseDraggingMode == DraggingMode.WindowZoom)
{
var p = mouseDownPoint;
double f = Math.Max(Math.Abs(p.X - args.X), Math.Abs(p.Y - args.Y)) / GViewer.Dpi;
if (f > gViewer.ZoomWindowThreshold && zoomWindow)
{
mouseUpPoint = new Point(args.X, args.Y);
if (ClientRectangle.Contains(mouseUpPoint))
{
var r = GViewer.RectFromPoints(mouseDownPoint, mouseUpPoint);
r.Intersect(gViewer.DestRect);
if (GViewer.ModifierKeyWasPressed() == false)
{
mouseDownPoint.X = r.Left;
mouseDownPoint.Y = r.Top;
mouseUpPoint.X = r.Right;
mouseUpPoint.Y = r.Bottom;
P2 p1 = gViewer.ScreenToSource(mouseDownPoint);
P2 p2 = gViewer.ScreenToSource(mouseUpPoint);
double sc = Math.Min((double)ClientRectangle.Width / r.Width,
ClientRectangle.Height / (double)r.Height);
P2 center = 0.5f * (p1 + p2);
gViewer.SetTransformOnScaleAndCenter(sc, center);
Invalidate();
}
}
}
}
}
zoomWindow = false;
}