private void OnMouseMoveImpl(MouseEventArgs e, StringBuilder sbLogger)
{
if (!this.tracking)
{
sbLogger.Append("1 ");
Cursor cursor = this.moveToolCursor;
for (int i = 0; i < this.moveNubs.Length; ++i)
{
sbLogger.Append("2 ");
MoveNubRenderer nub = this.moveNubs[i];
sbLogger.Append("3 ");
if (nub.Visible && nub.IsPointTouching(new Point(e.X, e.Y), true))
{
sbLogger.Append("4 ");
cursor = this.handCursor;
break;
}
}
this.Cursor = cursor;
sbLogger.Append("5 ");
}
else
{
sbLogger.Append("6 ");
if (this.context.currentMode != Mode.Translate)
{
sbLogger.Append("7 ");
this.Cursor = this.handCursorMouseDown;
}
sbLogger.Append("8 ");
Point newMouseXY = new Point(e.X, e.Y);
Point newOffset = new Point(newMouseXY.X - context.startMouseXY.X, newMouseXY.Y - context.startMouseXY.Y);
PreRender();
this.dontDrop = true;
sbLogger.Append("9 ");
Selection.PerformChanging();
using (Matrix translateMatrix = new Matrix())
{
RectangleF rect;
translateMatrix.Reset();
if (this.context.baseTransform != null)
{
Selection.SetInterimTransform(this.context.baseTransform);
}
Matrix interim = Selection.GetInterimTransformCopy();
switch (this.context.currentMode)
{
case Mode.Translate:
translateMatrix.Translate((float)newOffset.X, (float)newOffset.Y, MatrixOrder.Append);
break;
case Mode.Rotate:
rect = this.context.liftedBounds;
PointF center = new PointF(rect.X + (rect.Width / 2.0f), rect.Y + (rect.Height / 2.0f));
center = Utility.TransformOnePoint(interim, center);
double theta1 = Math.Atan2(context.startMouseXY.Y - center.Y, context.startMouseXY.X - center.X);
double theta2 = Math.Atan2(e.Y - center.Y, e.X - center.X);
double thetaDelta = theta2 - theta1;
this.angleDelta = (float)(thetaDelta * (180.0f / Math.PI));
float angle = this.context.startAngle + this.angleDelta;
if ((ModifierKeys & Keys.Shift) != 0)
{
angle = ConstrainAngle(angle);
angleDelta = angle - this.context.startAngle;
}
translateMatrix.RotateAt(angleDelta, center, MatrixOrder.Append);
this.rotateNub.Location = center;
this.rotateNub.Angle = this.context.startAngle + angleDelta;
break;
case Mode.Scale:
PointF xyAxes = GetEdgeVector(this.context.startEdge);
PointF xAxis = new PointF(xyAxes.X, 0);
PointF yAxis = new PointF(0, xyAxes.Y);
PointF edgeX = Utility.TransformOneVector(interim, xAxis);
PointF edgeY = Utility.TransformOneVector(interim, yAxis);
PointF edgeXN = Utility.NormalizeVector2(edgeX);
PointF edgeYN = Utility.NormalizeVector2(edgeY);
PointF xu;
float xulen;
PointF xv;
Utility.GetProjection((PointF)newOffset, edgeXN, out xu, out xulen, out xv);
PointF yu;
float yulen;
PointF yv;
Utility.GetProjection((PointF)newOffset, edgeYN, out yu, out yulen, out yv);
PdnGraphicsPath startPath2 = this.context.startPath.Clone();
RectangleF sp2Bounds = startPath2.GetBounds();
PointF sp2BoundsCenter = new PointF((sp2Bounds.Left + sp2Bounds.Right) / 2.0f,
(sp2Bounds.Top + sp2Bounds.Bottom) / 2.0f);
float tAngle = Utility.GetAngleOfTransform(interim);
bool isFlipped = Utility.IsTransformFlipped(interim);
using (Matrix spm = new Matrix())
{
spm.Reset();
spm.RotateAt(-tAngle, sp2BoundsCenter, MatrixOrder.Append);
translateMatrix.RotateAt(-tAngle, sp2BoundsCenter, MatrixOrder.Append);
startPath2.Transform(spm);
}
RectangleF spBounds2 = startPath2.GetBounds();
startPath2.Dispose();
startPath2 = null;
float xTranslate;
float yTranslate;
bool allowConstrain;
Edge theEdge = this.context.startEdge;
// If the transform is flipped, then GetTransformAngle will return 180 degrees
// even though no rotation has actually taken place. Thus we have to scratch
// our head and go "hmm, let's make some adjustments to this." Otherwise stretching
// the top and bottom nubs goes in the wrong direction.
if (isFlipped)
{
theEdge = FlipEdgeVertically(theEdge);
}
switch (theEdge)
{
default:
throw new InvalidEnumArgumentException();
case Edge.TopLeft:
allowConstrain = true;
xTranslate = -spBounds2.X - spBounds2.Width;
yTranslate = -spBounds2.Y - spBounds2.Height;
break;
case Edge.Top:
allowConstrain = false;
xTranslate = 0;
yTranslate = -spBounds2.Y - spBounds2.Height;
break;
case Edge.TopRight:
allowConstrain = true;
xTranslate = -spBounds2.X;
yTranslate = -spBounds2.Y - spBounds2.Height;
break;
case Edge.Left:
allowConstrain = false;
xTranslate = -spBounds2.X - spBounds2.Width;
yTranslate = 0;
break;
case Edge.Right:
allowConstrain = false;
xTranslate = -spBounds2.X;
yTranslate = 0;
break;
case Edge.BottomLeft:
allowConstrain = true;
xTranslate = -spBounds2.X - spBounds2.Width;
yTranslate = -spBounds2.Y;
break;
case Edge.Bottom:
allowConstrain = false;
xTranslate = 0;
yTranslate = -spBounds2.Y;
break;
case Edge.BottomRight:
allowConstrain = true;
xTranslate = -spBounds2.X;
yTranslate = -spBounds2.Y;
break;
}
translateMatrix.Translate(xTranslate, yTranslate, MatrixOrder.Append);
float newWidth = spBounds2.Width + xulen;
float newHeight = spBounds2.Height + yulen;
float xScale = newWidth / spBounds2.Width;
float yScale = newHeight / spBounds2.Height;
if (allowConstrain && (this.ModifierKeys & Keys.Shift) != 0)
{
ConstrainScaling(this.context.liftedBounds, spBounds2.Width, spBounds2.Height,
newWidth, newHeight, out xScale, out yScale);
}
translateMatrix.Scale(xScale, yScale, MatrixOrder.Append);
translateMatrix.Translate(-xTranslate, -yTranslate, MatrixOrder.Append);
translateMatrix.RotateAt(+tAngle, sp2BoundsCenter, MatrixOrder.Append);
break;
default:
throw new InvalidEnumArgumentException();
}
this.context.deltaTransform.Reset();
this.context.deltaTransform.Multiply(this.context.liftTransform, MatrixOrder.Append);
this.context.deltaTransform.Multiply(translateMatrix, MatrixOrder.Append);
translateMatrix.Multiply(this.context.baseTransform, MatrixOrder.Prepend);
Selection.SetInterimTransform(translateMatrix);
interim.Dispose();
interim = null;
}
// advertise our angle of rotation to any host (i.e. mainform) that might want to use that information
this.hostShouldShowAngle = this.rotateNub.Visible;
this.hostAngle = -this.rotateNub.Angle;
Selection.PerformChanged();
dontDrop = false;
Render(newOffset, true);
Update();
sbLogger.Append("a ");
this.context.offset = newOffset;
sbLogger.Append("b ");
if (this.enableOutline)
{
DocumentWorkspace.ResetOutlineWhiteOpacity();
}
sbLogger.Append("c ");
}
sbLogger.Append("d ");
}