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);
}
}
internal override void updateModify(PointF current, InteractionState ist)
{
base.updateModify(current, ist);
PointF pt1 = flowChart.InteractionStartPoint;
PointF pt2 = current;
PointF ptTLA = new PointF(rcSaved.Left, rcSaved.Top);
ptTLA.X += pt2.X - pt1.X;
ptTLA.Y += pt2.Y - pt1.Y;
ptTLA = flowChart.AlignPointToGrid(ptTLA);
base.modifyDX = ptTLA.X - ptLastTopLeft.X;
base.modifyDY = ptTLA.Y - ptLastTopLeft.Y;
ptLastTopLeft = ptTLA;
if (base.modifyHandle == 8)
{
// translate all points of arrows having both their ends selected
foreach (Arrow arrow in arrowsToMove)
arrow.translatePoints(base.modifyDX, base.modifyDY);
// modify selected objects
foreach (ChartObject obj in selectedItems)
if (!ignoreItem(obj, ist) && obj.canModify(base.modifyHandle) &&
!(obj is Arrow && arrowsToMove.Contains(obj)))
obj.modifyTranslate(base.modifyDX, base.modifyDY, true);
rect.Offset(base.modifyDX, base.modifyDY);
}
}
internal virtual void completeModify(PointF end, InteractionState ist)
{
modifyDX = end.X - ptMdfLast.X;
modifyDY = end.Y - ptMdfLast.Y;
ptMdfLast = end;
modifying = false;
}
internal virtual void cancelModify(InteractionState ist)
{
rect = rcSaved;
ptOrg = ptSavedOrg;
ptEnd = ptSavedEnd;
modifyDX = modifyDY = 0;
modifying = false;
}
// ************ modification ************
internal virtual void startModify(PointF org, int handle, InteractionState ist)
{
flowChart.UndoManager.onModifyItem(this);
modifyHandle = handle;
ptMdfLast = org;
modifyDX = modifyDY = 0;
ptSavedOrg = ptOrg;
ptSavedEnd = ptEnd;
rcSaved = rect;
modifying = true;
}
internal override void cancelModify(InteractionState ist)
{
base.cancelModify(ist);
relatedInteraction = null;
// call CancelModify method of all selected objects
foreach (ChartObject obj in selectedItems)
{
if (obj.getModifying())
{
obj.cancelModify(ist);
}
}
}
internal void beginModification(InteractionState ist)
{
if (cycleProtect)
{
return;
}
cycleProtect = true;
Point pt = new Point(0, 0);
for (int i = 0; i < attachments.Count; ++i)
{
((Attachment)attachments[i]).node.startModify(pt, 0, ist);
}
getArrowsToMove(ist);
cycleProtect = false;
}
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);
}
internal override void completeModify(PointF end, InteractionState ist)
{
base.completeModify(end, ist);
relatedInteraction = null;
RectangleF rcBounding = new RectangleF(0, 0, 0, 0);
if (modifyHandle == 8)
{
MethodCallVisitor visitor = new MethodCallVisitor(
new VisitOperation(updateNSARect));
visitHierarchy(visitor);
foreach (ChartObject obj in selectedItems)
{
RectangleF rcObj = obj.getRotatedBounds();
rcBounding = Utilities.unionNonEmptyRects(rcBounding, rcObj);
}
rect = rcBounding;
// beware of arrow routing; obj.completeModify invokations
// might route many arrows repetitively
flowChart.DontRouteForAwhile = true;
// call EndModify method of all selected objects
foreach (ChartObject obj in selectedItems)
{
if (obj.getModifying() && obj.canModify(modifyHandle))
{
obj.completeModify();
}
}
// now that would route an arrow only once
flowChart.DontRouteForAwhile = false;
flowChart.routeAllArrows(this);
// fire SelectionMoved event, for that was exactly what happened
flowChart.fireSelectionMoved();
}
}
// ************ modification ************
internal override void startModify(PointF org, int handle, InteractionState ist)
{
base.startModify(org, handle, ist);
relatedInteraction = ist;
ptLastTopLeft.X = rect.Left;
ptLastTopLeft.Y = rect.Top;
ptLastTopLeft = flowChart.AlignPointToGrid(ptLastTopLeft);
if (handle == 8 && selectedItems.Count > 0)
{
foreach (ChartObject obj in selectedItems)
if (!obj.getModifying() && obj.canModify(handle))
obj.startModify(org, 0, ist);
}
// find arrows whose both ends are selected
arrowsToMove.Clear();
MethodCallVisitor visitor = new MethodCallVisitor(
new VisitOperation(HV_TranslateArrow));
visitHierarchy(visitor);
}
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);
}
internal override void updateModify(PointF current, InteractionState ist)
{
base.updateModify(current, ist);
PointF pt1 = flowChart.InteractionStartPoint;
PointF pt2 = current;
PointF ptTLA = new PointF(rcSaved.Left, rcSaved.Top);
ptTLA.X += pt2.X - pt1.X;
ptTLA.Y += pt2.Y - pt1.Y;
ptTLA = flowChart.AlignPointToGrid(ptTLA);
base.modifyDX = ptTLA.X - ptLastTopLeft.X;
base.modifyDY = ptTLA.Y - ptLastTopLeft.Y;
ptLastTopLeft = ptTLA;
if (base.modifyHandle == 8)
{
// translate all points of arrows having both their ends selected
foreach (Arrow arrow in arrowsToMove)
{
arrow.translatePoints(base.modifyDX, base.modifyDY);
}
// modify selected objects
foreach (ChartObject obj in selectedItems)
{
if (!ignoreItem(obj, ist) && obj.canModify(base.modifyHandle) &&
!(obj is Arrow && arrowsToMove.Contains(obj)))
{
obj.modifyTranslate(base.modifyDX, base.modifyDY, true);
}
}
rect.Offset(base.modifyDX, base.modifyDY);
}
}
private void getArrowsToMove(InteractionState ist)
{
arrowsToMove.Clear();
// translate arrows if attachment type is 'to corner'
if (mainObj is Node)
{
// get arrows of nodes attached 'to corner'
ArrowCollection arrowsToCheck = new ArrowCollection();
foreach (Attachment att in Attachments)
{
if (att.type == AttachTo.FixedCorner ||
att.type == AttachTo.SideMiddle)
{
Node node = att.node;
node.getAllIncomingArrows(arrowsToCheck);
node.getAllOutgoingArrows(arrowsToCheck);
}
}
// check if arrow points must be translated by this group
foreach (Arrow a in arrowsToCheck)
{
if (mustTranslateArrow(a) && !arrowsToMove.Contains(a) &&
!ist.affectedArrows.Contains(a))
{
arrowsToMove.Add(a);
ist.affectedArrows.Add(a);
}
}
}
}
internal override void startModify(PointF org, int handle, InteractionState ist)
{
if (cycleProtect) { cycleDetected = true; return; }
else cycleDetected = false;
cycleProtect = true;
base.startModify(org, handle, ist);
// save the state of segments so it can be restored from cancelModify
savedSegments = saveSegments();
if (subordinateGroup != null)
subordinateGroup.beginModification(ist);
cycleProtect = false;
}
/// <summary>
/// checks whether an item shouldn't be moved by the Selection object itself, either because
/// its group master moves it, or if it's an arrow whose origin or dest. nodes aren't modified;
/// this method is intended to be called only from updateModify
/// </summary>
private bool ignoreItem(ChartObject item, InteractionState ist)
{
if (item is Node && item.MasterGroup != null)
{
// ignore the item if its group master is already moving
if (item.MasterGroup.MainObject.getModifying() &&
!ist.cycleRoots.Contains(item))
return true;
}
// ignore arrows whose source and destination aren't modified
Arrow arrow = item as Arrow;
if (arrow != null)
{
if (!arrow.Origin.getModifying() && !arrow.Destination.getModifying())
return true;
}
return parentSelected(item, false);
}
internal void updateObjects(InteractionState ist)
{
if (cycleProtect)
{
return;
}
cycleProtect = true;
if (!flowChart.DisabledGroups)
{
foreach (Arrow arrow in arrowsToMove)
{
arrow.translatePoints(
mainObj.getBoundingRect().X - prevRect.X,
mainObj.getBoundingRect().Y - prevRect.Y);
}
}
for (int i = 0; i < attachments.Count; i++)
{
Attachment att = (Attachment)attachments[i];
switch (att.type)
{
case AttachTo.FixedCorner:
updateToCornerAttachment(att, ist);
break;
case AttachTo.SideMiddle:
updateSideMiddleAttachment(att, ist);
break;
case AttachTo.Proportional:
updatePropAttachment(att, ist);
break;
case AttachTo.ArrowPoint:
if (!updateToPointAttachment(att, ist))
{
return;
}
break;
case AttachTo.ArrowSegment:
if (!updateToSegmentAttachment(att, ist))
{
return;
}
break;
case AttachTo.LongestHSegment:
updateLongestSegmAttachment(att, ist);
break;
}
}
if (mainObj.getType() == ItemType.Arrow)
{
prevPoints = ((Arrow)mainObj).Points.Clone();
}
else
{
prevRect = mainObj.getBoundingRect();
prevRotation = (mainObj as Node).rotation();
}
cycleProtect = false;
}
protected void AV_Cancel(ChartObject obj, InteractionState ist)
{
Arrow arrow = (Arrow)obj;
arrow.cancelModify(ist);
}
internal override void cancelModify(InteractionState ist)
{
base.cancelModify(ist);
relatedInteraction = null;
// call CancelModify method of all selected objects
foreach (ChartObject obj in selectedItems)
if (obj.getModifying())
obj.cancelModify(ist);
}
internal override void completeModify(PointF end, InteractionState ist)
{
if (cycleProtect) return;
cycleProtect = true;
base.completeModify(end, ist);
if (modifyHandle != 9)
rect = updateRect(rect, end, modifyHandle);
rect = Utilities.normalizeRect(rect);
onRectUpdate();
modifying = true;
visitArrows(
new MethodCallVisitor(new VisitOperation(AV_EndModOutgoing)),
new MethodCallVisitor(new VisitOperation(AV_EndModIncoming)));
if (subordinateGroup != null)
{
subordinateGroup.updateObjects(ist);
subordinateGroup.endModification();
}
modifying = false;
flowChart.routeAllArrows(this);
flowChart.fireObjModified(this, end, modifyHandle);
cycleProtect = false;
}
// ************ modification ************
internal virtual void startModify(PointF org, int handle, InteractionState ist)
{
flowChart.UndoManager.onModifyItem(this);
modifyHandle = handle;
ptMdfLast = org;
modifyDX = modifyDY = 0;
ptSavedOrg = ptOrg;
ptSavedEnd = ptEnd;
rcSaved = rect;
modifying = true;
}
protected override void OnMouseDown(MouseEventArgs e)
{
if (Enabled)
try { this.Focus(); }
catch (SecurityException) {};
focusLost = false;
endInplaceEdit(true);
base.OnMouseDown(e);
if (!Enabled) return;
if (focusLost) return;
if (panMode) return;
// get mouse position in document coordinates
Graphics g = this.CreateGraphics();
setTransforms(g);
PointF ptMousePos = Utilities.deviceToDoc(g, e.X, e.Y);
g.Dispose();
if (manipulatorEnacted(ptMousePos)) return;
if (e.Clicks > 1)
{
ChartObject objUnderMouse = GetObjectAt(ptMousePos, false);
if (objUnderMouse != null)
{
fireDblClickedEvent(objUnderMouse, ptMousePos, e.Button);
}
else
{
if (DocDblClicked != null)
{
DocDblClicked(this, new MousePosArgs(
e.Button, ptMousePos.X, ptMousePos.Y));
}
}
if (this.Capture)
{
this.Capture = false;
if (docBuffer != null)
{
docBuffer.Dispose();
docBuffer = null;
}
interaction = null;
}
return;
}
int btn = btnNum(e.Button);
buttonDown[btn] = true;
downPos[btn] = new Point(e.X, e.Y);
ptStartDragDev = new Point(e.X, e.Y);
if (interaction == null)
{
// enter pan mode if a modifier key is pressed or a mouse button is mapped to panning
panMode = ((middleButtonAction == MouseButtonAction.Pan && e.Button == MouseButtons.Middle) ||
((_modifierKeyActions.GetKeys(ModifierKeyAction.Pan) & ModifierKeys) != 0 && e.Button == MouseButtons.Left));
if (panMode)
{
try { Capture = true; }
catch (SecurityException) {};
panPoint = new PointF(ScrollX, ScrollY);
Cursor = panCursor;
return;
}
}
// or start drawing - we care only for left-button clicks
if (e.Button == MouseButtons.Left && Behavior != BehaviorType.DoNothing)
{
userAction = true;
// get mouse position in document coordinates
g = this.CreateGraphics();
setTransforms(g);
ptStartDrag = Utilities.deviceToDoc(g, e.X, e.Y);
// start dragging
try {this.Capture = true; }
catch (SecurityException) {};
mouseMoved = false;
// create or modify an item
interaction = currentBehavior.startDraw(ptStartDrag, g);
interaction.start(ptStartDrag, this);
// save the control background
docBuffer = createBackBuffer(ClientRectangle, g);
drawFlowChart(docBuffer, ClientRectangle, true);
// cleanup
g.Dispose();
userAction = false;
}
}
internal override void startModify(PointF org, int handle, InteractionState ist)
{
if (cycleProtect)
{
cycleDetected = true;
ist.cycleRoots.Add(this);
return;
}
else
cycleDetected = false;
cycleProtect = true;
base.startModify(org, handle, ist);
visitArrows(
new MethodCallVisitor(new VisitOperationIntr(AV_StartModOutgoing), ist),
new MethodCallVisitor(new VisitOperationIntr(AV_StartModIncoming), ist));
if (subordinateGroup != null)
subordinateGroup.beginModification(ist);
cycleProtect = false;
}
internal virtual void cancelModify(InteractionState ist)
{
rect = rcSaved;
ptOrg = ptSavedOrg;
ptEnd = ptSavedEnd;
modifyDX = modifyDY = 0;
modifying = false;
}
internal virtual void completeModify(PointF end, InteractionState ist)
{
modifyDX = end.X - ptMdfLast.X;
modifyDY = end.Y - ptMdfLast.Y;
ptMdfLast = end;
modifying = false;
}
internal virtual void updateModify(PointF current, InteractionState ist)
{
modifyDX = current.X - ptMdfLast.X;
modifyDY = current.Y - ptMdfLast.Y;
ptMdfLast = current;
}
internal void startModifyEnd(InteractionState ist)
{
if (cycleProtect) return;
cycleProtect = true;
base.startModify(points[points.Count-1], points.Count-1, ist);
// save the state of segments so it can be restored from cancelModify
savedSegments = saveSegments();
if (subordinateGroup != null)
subordinateGroup.beginModification(ist);
cycleProtect = false;
}
protected void AV_StartModOutgoing(ChartObject obj, InteractionState ist)
{
Arrow arrow = (Arrow)obj;
arrow.startModifyOrg(ist);
}
internal void updateObjects(InteractionState ist)
{
if(cycleProtect) return;
cycleProtect = true;
if (!flowChart.DisabledGroups)
{
foreach (Arrow arrow in arrowsToMove)
arrow.translatePoints(
mainObj.getBoundingRect().X - prevRect.X,
mainObj.getBoundingRect().Y - prevRect.Y);
}
for (int i = 0; i < attachments.Count; i++)
{
Attachment att = (Attachment)attachments[i];
switch(att.type)
{
case AttachTo.FixedCorner:
updateToCornerAttachment(att, ist);
break;
case AttachTo.SideMiddle:
updateSideMiddleAttachment(att, ist);
break;
case AttachTo.Proportional:
updatePropAttachment(att, ist);
break;
case AttachTo.ArrowPoint:
if (!updateToPointAttachment(att, ist))
return;
break;
case AttachTo.ArrowSegment:
if (!updateToSegmentAttachment(att, ist))
return;
break;
case AttachTo.LongestHSegment:
updateLongestSegmAttachment(att, ist);
break;
}
}
if (mainObj.getType() == ItemType.Arrow)
{
prevPoints = ((Arrow)mainObj).Points.Clone();
}
else
{
prevRect = mainObj.getBoundingRect();
prevRotation = (mainObj as Node).rotation();
}
cycleProtect = false;
}
private void updateRelatedPoints(PointF current, InteractionState ist)
{
// when the arrow style is asBezier it has two kinds of control points
// 1. the points through which the curve go, when they are moved the adjacent
// points of the second type are moved with the same translation vector
// 2. the points controlling the bend of the curve, the line that goes through
// them and the point of type 1 between them is tangent in this type 1 point.
// when any of the points in type 2 pair is modified, its corresponding
// point is moved so they maintain there symmetry in relation to the type 1 point
if (style == ArrowStyle.Bezier)
{
if ((modifyHandle+1) % 3 == 0 && modifyHandle < points.Count-3)
{
points[modifyHandle+2] =
Utilities.symmetricPt(points[modifyHandle], points[modifyHandle+1]);
}
if ((modifyHandle-1) % 3 == 0 && modifyHandle > 3)
{
points[modifyHandle-2] =
Utilities.symmetricPt(points[modifyHandle], points[modifyHandle-1]);
}
if ((modifyHandle%3 == 0) && modifyHandle > 0 && modifyHandle < points.Count-1)
{
points[modifyHandle-1] = new PointF(
points[modifyHandle-1].X + modifyDX, points[modifyHandle-1].Y + modifyDY);
points[modifyHandle+1] = new PointF(
points[modifyHandle+1].X + modifyDX, points[modifyHandle+1].Y + modifyDY);
}
}
// in case of a cascading arrow, when a point is moved the two
// points adjacent to it are moved too, so the lines connecting them
// maintain their horizontal / vertical orientation
if (style == ArrowStyle.Cascading)
{
int h = modifyHandle;
int ip = modifyHandle - 1;
int ix = modifyHandle + 1;
float dX = points[points.Count - 1].X - points[0].X;
float dY = points[points.Count - 1].Y - points[0].Y;
// when dragging an end point, change the start segment orientation
// if the dx/dy ratio does not correspond to the current orientation
if (cascadeOrientation == Orientation.Auto && (h == 0 || h == points.Count - 1) &&
((cascadeStartHorizontal && Math.Abs(dX) < Math.Abs(dY)) ||
(!cascadeStartHorizontal && Math.Abs(dX) > Math.Abs(dY))))
{
cascadeStartHorizontal = Math.Abs(dX) > Math.Abs(dY);
arrangePrpSegments(dX, dY);
}
else
{
// let users change the segment orientation using a mouse gesture
// while dragging a point next to the first or last one
float mouseDX = current.X - ist.StartPoint.X;
float mouseDY = current.Y - ist.StartPoint.Y;
if (cascadeOrientation == Orientation.Auto)
{
bool transpose = false;
if (h == 1)
{
float segmentDX = points[2].X - points[1].X;
float segmentDY = points[2].Y - points[1].Y;
float pointDX = current.X - points[0].X;
float pointDY = current.Y - points[0].Y;
transpose = CascadeStartHorizontal ?
Math.Abs(pointDY) > Math.Abs(pointDX) && mouseDY * segmentDY > 0 :
Math.Abs(pointDX) > Math.Abs(pointDY) && mouseDX * segmentDX > 0;
}
else
if (h == points.Count - 2)
{
float segmentDX = points[points.Count - 2].X - points[points.Count - 1].X;
float segmentDY = points[points.Count - 2].Y - points[points.Count - 1].Y;
float pointDX = current.X - points[points.Count - 1].X;
float pointDY = current.Y - points[points.Count - 1].Y;
transpose = CascadeEndHorizontal ?
Math.Abs(pointDY) > Math.Abs(pointDX) && mouseDY * segmentDY > 0 :
Math.Abs(pointDX) > Math.Abs(pointDY) && mouseDX * segmentDX > 0;
}
if (transpose)
{
if (flowChart.AllowSplitArrows)
{
if (ist.splitToChangeOrient)
{
// insert a new segment and change only the orientation of the one at the end
segmentCount++;
if (h == 1)
{
cascadeStartHorizontal = !cascadeStartHorizontal;
points[1] = points[2];
points.Insert(1, current);
}
else
if (h == points.Count - 2)
{
points[points.Count - 2] = points[points.Count - 3];
points.Insert(points.Count - 1, current);
h++; ip++; ix++;
modifyHandle++;
ist.setHandleIndex(ist.SelectionHandle + 1);
}
}
else
{
// remove the segment that was added for the previous change of orientation
segmentCount--;
if (h == 1)
{
cascadeStartHorizontal = !cascadeStartHorizontal;
points.RemoveAt(1);
}
else
if (h == points.Count - 2)
{
points.RemoveAt(points.Count - 2);
h--; ip--; ix--;
modifyHandle--;
ist.setHandleIndex(ist.SelectionHandle - 1);
}
}
ist.splitToChangeOrient = !ist.splitToChangeOrient;
}
else
{
cascadeStartHorizontal = !cascadeStartHorizontal;
// change the orientation of all segments
PointF start = points[0];
for (int i = 1; i < points.Count - 1; ++i)
{
PointF point = points[i];
point.X = (point.X - start.X) / dX * 100;
point.Y = (point.Y - start.Y) / dY * 100;
points[i] = new PointF(
start.X + point.Y * dX / 100, start.Y + point.X * dY / 100);
}
points[h] = current;
}
}
}
alignCascadingSegments(h);
}
}
}
protected override void OnMouseUp(MouseEventArgs e)
{
#if VERTIGO
if (!DesignMode && !loadedFromVertigoAssembly())
throw new Exception("This FlowChart.NET version can be used only " +
"with the CodePlex Vertigo project.");
#endif
base.OnMouseUp(e);
// stop autoscrolling
if (scrollTimer != null)
{
scrollTimer.Enabled = false;
scrollTimer = null;
}
// stop pan mode if it's active now
if (panMode)
{
panMode = mouseMoved = false;
buttonDown[btnNum(e.Button)] = false;
if (Capture)
Capture = false;
Cursor = curPointer;
return;
}
if (!Enabled) return;
userAction = true;
Graphics g = this.CreateGraphics();
setTransforms(g);
// get mouse position in document coordinates
PointF ptCurr = Utilities.deviceToDoc(g, e.X, e.Y);
PointF ptMousePos = ptCurr;
if (interaction != null && Behavior != BehaviorType.DoNothing &&
this.Capture && buttonDown[0])
{
ChartObject currObject = interaction.CurrentObject;
RectangleF rcInv = interaction.InvalidRect;
// should the operation be performed?
if (e.Button != MouseButtons.Left || !mouseMoved || !interaction.isAllowed(ptCurr))
{
// cancel the operation
interaction.cancel(this);
// if the mouse wasn't moved, select the object under cursor
if (!mouseMoved && (interaction.Action == Action.Create || interaction.Action == Action.Split))
{
ChartObject obj = GetObjectAt(ptCurr, true);
if (obj == null || confirmSelect(obj))
{
RectangleF rcOld = calcSelectionRect(activeObject, ptCurr);
rcInv = Utilities.unionRects(rcInv, rcOld);
rcInv = Utilities.unionNonEmptyRects(
rcInv, selection.getRepaintRect(false));
int oldSelCount = selection.GetSize();
// change selection
if ((_modifierKeyActions.GetKeys(ModifierKeyAction.Select) & ModifierKeys) != 0)
selection.Toggle(obj);
else
selection.Change(obj);
int newSelCount = selection.GetSize();
rcInv = Utilities.unionRects(rcInv,
selection.getRepaintRect(false));
rcInv = Utilities.unionRects(rcInv,
calcSelectionRect(activeObject, ptCurr));
rcInv.Inflate(selHandleSize, selHandleSize);
if (!(oldSelCount == 0 && newSelCount == 0))
dirty = true;
} // if confirmSelect()
} // if !mouseMoved
} // if (e.Button != MouseButtons.Left)
else
{
// complete operation
interaction.complete(ptCurr, this);
rcInv = interaction.InvalidRect;
// update document size if needed
if (autoSizeDoc != MindFusion.FlowChartX.AutoSize.None)
sizeDocForItem(currObject);
}
Rectangle rcInvDev = Utilities.docToDevice(g, rcInv);
rcInvDev.Inflate(2, 2);
this.Invalidate(rcInvDev, false);
this.Capture = false;
docBuffer.Dispose();
docBuffer = null;
interaction = null;
}
g.Dispose();
int btn = btnNum(e.Button);
if (buttonDown[btn] &&
Math.Abs(downPos[btn].X - e.X) <= 2 &&
Math.Abs(downPos[btn].Y - e.Y) <= 2)
{
ChartObject objUnderMouse = GetObjectAt(ptMousePos, false);
if (objUnderMouse != null)
{
fireClickedEvent(objUnderMouse, ptMousePos, e.Button);
}
else
{
if (DocClicked != null)
{
DocClicked(this, new MousePosArgs(
e.Button, ptMousePos.X, ptMousePos.Y));
}
}
}
buttonDown[btn] = false;
userAction = false;
}
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);
}
internal override void updateModify(PointF current, InteractionState ist)
{
if (cycleProtect) return;
cycleProtect = true;
base.updateModify(current, ist);
if (modifyHandle != 9)
rect = updateRect(rect, current, modifyHandle);
onRectUpdate();
visitArrows(
new MethodCallVisitor(new VisitOperation(AV_UpdateOutgoing)),
new MethodCallVisitor(new VisitOperation(AV_UpdateIncoming)),
getExcludedArrows());
if (subordinateGroup != null)
subordinateGroup.updateObjects(ist);
cycleProtect = false;
}
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);
}
internal override void cancelModify(InteractionState ist)
{
if (cycleProtect) return;
cycleProtect = true;
base.cancelModify(ist);
visitArrows(
new MethodCallVisitor(new VisitOperationIntr(AV_Cancel), ist));
onRectUpdate();
if (subordinateGroup != null)
subordinateGroup.cancelModification(ist);
cycleProtect = false;
}
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;
}
protected void AV_StartModIncoming(ChartObject obj, InteractionState ist)
{
Arrow arrow = (Arrow)obj;
arrow.startModifyEnd(ist);
}
internal virtual void updateModify(PointF current, InteractionState ist)
{
modifyDX = current.X - ptMdfLast.X;
modifyDY = current.Y - ptMdfLast.Y;
ptMdfLast = current;
}
internal override void completeModify(PointF end, InteractionState ist)
{
base.completeModify(end, ist);
relatedInteraction = null;
RectangleF rcBounding = new RectangleF(0, 0, 0, 0);
if (modifyHandle == 8)
{
MethodCallVisitor visitor = new MethodCallVisitor(
new VisitOperation(updateNSARect));
visitHierarchy(visitor);
foreach (ChartObject obj in selectedItems)
{
RectangleF rcObj = obj.getRotatedBounds();
rcBounding = Utilities.unionNonEmptyRects(rcBounding, rcObj);
}
rect = rcBounding;
// beware of arrow routing; obj.completeModify invokations
// might route many arrows repetitively
flowChart.DontRouteForAwhile = true;
// call EndModify method of all selected objects
foreach (ChartObject obj in selectedItems)
if (obj.getModifying() && obj.canModify(modifyHandle))
obj.completeModify();
// now that would route an arrow only once
flowChart.DontRouteForAwhile = false;
flowChart.routeAllArrows(this);
// fire SelectionMoved event, for that was exactly what happened
flowChart.fireSelectionMoved();
}
}
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);
}
}
internal void beginModification(InteractionState ist)
{
if (cycleProtect) return;
cycleProtect = true;
Point pt = new Point(0, 0);
for (int i = 0; i < attachments.Count; ++i)
((Attachment)attachments[i]).node.startModify(pt, 0, ist);
getArrowsToMove(ist);
cycleProtect = false;
}
internal void cancelModification(InteractionState ist)
{
if (cycleProtect) return;
cycleProtect = true;
for (int i = 0; i < attachments.Count; ++i)
((Attachment)attachments[i]).node.cancelModify(ist);
if (mainObj.getType() == ItemType.Arrow)
{
prevPoints = ((Arrow)mainObj).Points.Clone();
}
else
{
prevRect = mainObj.getBoundingRect();
prevRotation = (mainObj as Node).rotation();
}
cycleProtect = false;
}
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 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);
}
