internal Attachment Clone()
{
Attachment clone = new Attachment();
clone.node = node;
clone.percents = percents;
clone.attData = attData;
clone.type = type;
return clone;
}
private void updateLongestSegmAttachment(Attachment att, InteractionState ist)
{
int segment = ((Arrow)mainObj).getLongestHorzSegment();
int n1 = 0, n2 = 0;
switch (((Arrow)mainObj).Style)
{
case ArrowStyle.Bezier:
n1 = segment * 3 + 1;
n2 = n1 + 1;
break;
case ArrowStyle.Polyline:
case ArrowStyle.Cascading:
n1 = segment;
n2 = segment + 1;
break;
}
PointF ptCurr = Utilities.midPoint(
((Arrow)mainObj).Points[n1],
((Arrow)mainObj).Points[n2]);
if (!flowChart.DisabledGroups)
{
float dx = ptCurr.X - att.node.getCenter().X;
float dy = ptCurr.Y - att.node.getCenter().Y;
att.node.modifyTranslate(dx, dy, true);
}
}
private bool updateToSegmentAttachment(Attachment att, InteractionState ist)
{
int segment = att.attData;
int n1 = 0, n2 = 0;
if (((Arrow)mainObj).SegmentCount <= segment)
{
cycleProtect = false;
new RemoveGroupCmd(MainObject, this).Execute();
return false;
}
switch (((Arrow)mainObj).Style)
{
case ArrowStyle.Bezier:
n1 = segment * 3 + 1;
n2 = n1 + 1;
break;
case ArrowStyle.Polyline:
case ArrowStyle.Cascading:
n1 = segment;
n2 = segment + 1;
break;
}
PointF ptPrev = Utilities.midPoint(
prevPoints[n1], prevPoints[n2]);
PointF ptCurr = Utilities.midPoint(
((Arrow)mainObj).Points[n1],
((Arrow)mainObj).Points[n2]);
if (flowChart.DisabledGroups)
ptCurr = ptPrev;
att.node.modifyTranslate(
ptCurr.X - ptPrev.X, ptCurr.Y - ptPrev.Y, true);
return true;
}
private bool updateToPointAttachment(Attachment att, InteractionState ist)
{
int point = att.attData;
if (((Arrow)mainObj).Points.Count <= point)
{
cycleProtect = false;
new RemoveGroupCmd(MainObject, this).Execute();
return false;
}
PointF ptPrev = prevPoints[point];
PointF ptCurr = ((Arrow)mainObj).Points[point];
if(flowChart.DisabledGroups)
ptCurr = ptPrev;
att.node.modifyTranslate(
ptCurr.X - ptPrev.X, ptCurr.Y - ptPrev.Y, true);
return true;
}
private void updatePropAttachment(Attachment att, InteractionState ist)
{
if (!(mainObj is Node))
return;
Node mainNode = mainObj as Node;
RectangleF rc = followMasterRotation ?
mainNode.getRotatedBounds() : mainNode.getBoundingRect();
float w = rc.Right - rc.Left;
float h = rc.Bottom - rc.Top;
RectangleF perc = att.percents;
RectangleF rcNew = RectangleF.FromLTRB(
rc.Left + w * perc.Left / 100,
rc.Top + h * perc.Top / 100,
rc.Left + w * perc.Right / 100,
rc.Top + h * perc.Bottom / 100);
if (!flowChart.DisabledGroups)
att.node.setRect(rcNew);
}
private void updateSideMiddleAttachment(Attachment att, InteractionState ist)
{
int side;
PointF ptPrev = new PointF(0, 0);
PointF ptCurr = new PointF(0, 0);
RectangleF rc;
side = att.attData;
switch(side)
{
case 0:
ptPrev.X = prevRect.Left + prevRect.Width / 2;
ptPrev.Y = prevRect.Top;
rc = mainObj.getBoundingRect();
ptCurr.X = rc.Left + rc.Width / 2;
ptCurr.Y = rc.Top;
break;
case 1:
ptPrev.X = prevRect.Right;
ptPrev.Y = prevRect.Top + prevRect.Height / 2;
rc = mainObj.getBoundingRect();
ptCurr.X = rc.Right;
ptCurr.Y = rc.Top + rc.Height / 2;
break;
case 2:
ptPrev.X = prevRect.Left + prevRect.Width / 2;
ptPrev.Y = prevRect.Bottom;
rc = mainObj.getBoundingRect();
ptCurr.X = rc.Left + rc.Width / 2;
ptCurr.Y = rc.Bottom;
break;
case 3:
ptPrev.X = prevRect.Left;
ptPrev.Y = prevRect.Top + prevRect.Height / 2;
rc = mainObj.getBoundingRect();
ptCurr.X = rc.Left;
ptCurr.Y = rc.Top + rc.Height / 2;
break;
}
if (followMasterRotation && ist.SelectionHandle == 9 && mainObj is Node)
{
Node mainNode = mainObj as Node;
float newAngle = mainNode.rotation();
if (newAngle != prevRotation)
{
PointF pivot = mainNode.getCenter();
PointF center = att.node.getCenter();
float a = 0, r = 0;
Geometry.Geometry2D.Convert.DekartToPolar(
pivot, center, ref a, ref r);
a -= newAngle - prevRotation;
ptPrev = ptCurr = center;
Geometry.Geometry2D.Convert.PolarToDekart(
pivot, a,r, ref ptCurr);
}
}
if (flowChart.DisabledGroups)
ptCurr = ptPrev;
att.node.modifyTranslate(
ptCurr.X - ptPrev.X, ptCurr.Y - ptPrev.Y, true);
}
/// <summary>
/// Adds an item to the group, attaching it to the middle point of a side of the master node
/// </summary>
/// <param name="node">The object to attach to the current group.</param>
/// <param name="side">The corner to attach to.</param>
public bool AttachToSideMiddle(Node node, int side)
{
if (!objAttachable(node)) return false;
if (mainObj.getType() == ItemType.Arrow) return false;
if (side < 0 || side > 3) return false;
Attachment a = new Attachment();
a.node = node;
a.type = AttachTo.SideMiddle;
a.attData = side;
new GroupAttachCmd(this, a).Execute();
return true;
}
/// <summary>
/// Attaches an item so its size maintains a constant ratio to master's size
/// </summary>
/// <param name="obj">The object to attach to the current group.</param>
/// <param name="left"></param>
/// <param name="top"></param>
/// <param name="right"></param>
/// <param name="bottom"></param>
public bool AttachProportional(Node node,
float left, float top, float right, float bottom)
{
if (!objAttachable(node)) return false;
if (mainObj.getType() == ItemType.Arrow) return false;
Attachment a = new Attachment();
a.node = node;
a.type = AttachTo.Proportional;
a.percents = RectangleF.FromLTRB(
left, top, right, bottom);
new GroupAttachCmd(this, a).Execute();
return true;
}
/// <summary>
/// Adds an item to the group, attaching it to a corner of the master node
/// </summary>
/// <param name="node">The object to attach to the current group.</param>
/// <param name="corner">The corner to attach to.</param>
public bool AttachToCorner(Node node, int corner)
{
if (!objAttachable(node)) return false;
if (mainObj.getType() == ItemType.Arrow) return false;
if (corner < 0 || corner > 3) return false;
Attachment a = new Attachment();
a.node = node;
a.type = AttachTo.FixedCorner;
a.attData = corner;
new GroupAttachCmd(this, a).Execute();
return true;
}
/// <summary>
/// Adds an item to the group, maintaining its relative positions
/// to master arrow's longest horizontal segment
/// </summary>
/// <param name="node">The object to attach to the current group.</param>
public bool AttachToLongestHSegment(Node node)
{
if (!objAttachable(node)) return false;
if (mainObj.getType() != ItemType.Arrow) return false;
Attachment a = new Attachment();
a.node = node;
a.type = AttachTo.LongestHSegment;
new GroupAttachCmd(this, a).Execute();
return true;
}
/// <summary>
/// Adds an item to the group, attaching it to a segment of the master arrow
/// </summary>
/// <param name="node">The object to attach to the current group.</param>
/// <param name="segment">The segment to attach to.</param>
public bool AttachToArrowSegment(Node node, int segment)
{
if (!objAttachable(node)) return false;
if (mainObj.getType() != ItemType.Arrow) return false;
if (((Arrow)mainObj).SegmentCount <= segment) return false;
Attachment a = new Attachment();
a.node = node;
a.type = AttachTo.ArrowSegment;
a.attData = segment;
new GroupAttachCmd(this, a).Execute();
return true;
}
/// <summary>
/// Used for undo/redo. Removes an Attachment instance from the internal list of attachments.
/// </summary>
internal void removeAttachment(Attachment attachment)
{
attachments.Remove(attachment);
attachment.node.putInGroup(null);
attachedObjects.Remove(attachment.node);
}
/// <summary>
/// Used for undo/redo. Adds an existing Attachment instance to the internal list of attachments.
/// </summary>
internal void addAttachment(Attachment attachment, bool undoOp)
{
if (attachments == null)
attachments = new ArrayList();
attachments.Add(attachment);
attachment.node.putInGroup(this);
if (!undoOp)
attachment.node.Visible = visible;
attachedObjects.Add(attachment.node);
}
