protected override void OnMouseUp(MouseEventArgs e)
{
base.OnMouseUp(e);
mouseDown = false;
//使用shift键放大缩小
if (shiftPressed)
{
rectZoomInteractor.ProcessMouseButtonUp(new CanonicalMouseEventArgs(e), GetInteractionContext());
rectZoomInteractor.Deactivate();
Invalidate();
}
else
{
panInteractor.Deactivate();
// Select entity at mouse location if mouse didn't move
// and show entity in property grid.
if (mouseClickLocation == e.Location)
{
Point2D referencePoint = new Point2D(e.X, e.Y);
double distance;
IList <RenderedEntityInfo> closestEntities =
EntitySelector.GetClosestEntities(
model,
GraphicsConfig.BlackBackgroundCorrectForBackColor,
gdiGraphics3D.To2DTransform,
referencePoint,
out distance
);
if (highlightedEntity != null)
{
IList <IWireframeDrawable> drawables = graphicsCache.GetDrawables(highlightedEntity);
IWireframeGraphicsFactory graphicsFactory = null;
gdiGraphics3D.UpdateDrawables(
highlightedEntity,
() => {
foreach (IWireframeDrawable drawable in drawables)
{
drawable.Draw(graphicsFactory);
}
},
o => graphicsFactory = o
);
Invalidate();
highlightedEntity = null;
}
if (closestEntities.Count > 0)
{
// Chose the last entity as it is drawn last, so will be on top.
highlightedEntity = closestEntities[closestEntities.Count - 1];
IList <IWireframeDrawable> drawables = graphicsCache.GetDrawables(highlightedEntity);
WireframeGraphicsFactoryColorChanger graphicsFactoryColorChanger = null;
gdiGraphics3D.UpdateDrawables(
highlightedEntity,
() => {
foreach (IWireframeDrawable drawable in drawables)
{
drawable.Draw(graphicsFactoryColorChanger);
}
},
o => graphicsFactoryColorChanger = new WireframeGraphicsFactoryColorChanger(o, ColorChanger)
);
Invalidate();
DxfEntity entity = highlightedEntity.Entity;
OnEntitySelected(new EntityEventArgs(entity));
}
}
}
currentInteractorDrawable = null;
}
public virtual void ImageControl_OnMouseUp(object sender, MouseEventArgs e)
{
base.OnMouseUp(e);
mouseDown = false;
// Use shift key for rectangle zoom.
if (shiftPressed)
{
DrawReversibleRectangle(mouseClickLocation, lastMouseLocation);
Point2D corner1 = new Point2D(
Math.Min(mouseClickLocation.X, e.Location.X),
Math.Min(mouseClickLocation.Y, e.Location.Y)
);
Point2D corner2 =
new Point2D(
Math.Max(mouseClickLocation.X, e.Location.X),
Math.Max(mouseClickLocation.Y, e.Location.Y)
);
Vector2D delta = corner2 - corner1;
if (!(MathUtil.AreApproxEqual(delta.X, 0d) || MathUtil.AreApproxEqual(delta.Y, 0d)))
{
Matrix4D oldTo2DTransform = CalculateTo2DTransform1();
// Update scaleFactor
double scale = Math.Min(ImageControl.ClientSize.Width / delta.X, ImageControl.ClientSize.Height / delta.Y);
scaleFactor *= scale;
//// Update translation
Point3D screenSpaceCenter = new Point3D(corner1 + 0.5d * delta, 0d);
Point3D newModelSpaceCenter = oldTo2DTransform.GetInverse().Transform(new Point3D(corner1 + 0.5d * delta, 0d));
Matrix4D intermediateTo2DTransform = CalculateTo2DTransform1();
intermediateTo2DTransform.TransformTo2D(newModelSpaceCenter);
Point3D intermediateScreenSpaceCenter = intermediateTo2DTransform.Transform(newModelSpaceCenter);
translation += (
new Point3D(0.5d * ImageControl.ClientSize.Width, 0.5d * ImageControl.ClientSize.Height, 0d) -
intermediateScreenSpaceCenter
);
CalculateTo2DTransform1();
ImageControl.Invalidate();
shiftPressed = false;
}
}
else
{
// Select entity at mouse location if mouse didn't move
// and show entity in property grid.
if (mouseClickLocation == e.Location)
{
try
{
Point2D referencePoint = new Point2D(e.X, e.Y);
double distance;
IList <RenderedEntityInfo> closestEntities =
EntitySelector.GetClosestEntities(
model,
GraphicsConfig.BlackBackgroundCorrectForBackColor,
gdiGraphics3D.To2DTransform,
referencePoint,
out distance
);
if (closestEntities.Count > 0)
{
DxfEntity entity = closestEntities[0].Entity;
OnEntitySelected(new EntityEventArgs(entity));
}
}
catch
{
}
}
}
}
