/// <summary>
/// Overrides the default message/event handler to perform our design time magic editing
/// </summary>
/// <param name="m"></param>
protected override void WndProc(ref Message m)
{
// if the message is not or TreeView, just skip it
if (m.HWnd != m_oTreeView.Handle)
{
// but if it is a TreeView's scrollbar, let the control handle the event
if (m.HWnd == m_oTreeView.m_oScrollBar.Handle)
{
DefWndProc(ref m);
return;
}
base.WndProc(ref m);
return;
}
try
{
Point p = new Point(m.LParam.ToInt32());
bool bControl = ((m.WParam.ToInt32() & MK_CONTROL) != 0);
bool bShift = ((m.WParam.ToInt32() & MK_SHIFT) != 0);
bool lButton = ((m.WParam.ToInt32() & MK_LBUTTON) != 0);
if (m.Msg == WM_MOUSEWHEEL)
{
base.WndProc(ref m);
}
switch (m.Msg)
{
case WM_MOVE:
case WM_SIZE:
base.WndProc(ref m);
break;
case WM_LBUTTONDBLCLK:
if (m_oSelectedNode == null)
break;
if (m_oSelectedNode.IsExpanded == true)
{
// inplace editing
m_InplaceEdit = new InplaceEditForm(m_oSelectedNode, this);
Rectangle nodeRect = m_oTreeView.GetNodeRect(m_oSelectedNode);
m_InplaceEdit.BackColor = m_oSelectedNode.GetSelectedBackColor();
m_InplaceEdit.Location = m_oTreeView.Parent.PointToScreen(m_oTreeView.Location);
m_InplaceEdit.Left += nodeRect.Left + 1;
m_InplaceEdit.Top += nodeRect.Top - 3;
m_InplaceEdit.Width = nodeRect.Width + 2;
m_InplaceEdit.Height = nodeRect.Height + 3;
m_InplaceEdit.Show();
m_InplaceEdit.FocusTextBox();
break;
}
m_oSelectedNode.IsExpanded = !m_oSelectedNode.IsExpanded;
break;
case WM_LBUTTONDOWN:
Cursor.Current = System.Windows.Forms.Cursors.Arrow;
#region Lbutton down
m_bMouseDown = true;
m_oMouseDown = p;
m_oTreeView.ClearDesignHighlight();
m_oSelectedNode = null;
// check if have not clicked the right corner when scrollbars are in place
if (m_oTreeView.Controls.Contains(m_oTreeView.m_oHScrollBar)
&& m_oTreeView.Controls.Contains(m_oTreeView.m_oScrollBar))
{
if (p.X > m_oTreeView.m_oHScrollBar.Right && p.Y > m_oTreeView.m_oScrollBar.Bottom)
{
m_oTreeView.ClearAllSelection();
m_oTreeView.ClearDesignSelection();
m_oTreeView.ClearDesignHighlight();
m_bSkipSelectionChange = true;
m_oSelectionService.SetSelectedComponents(new Component[] {m_oTreeView}, SelectionTypes.Replace);
m_bSkipSelectionChange = false;
break;
}
}
// try to find the group or node object and set the object to the property window
Component oComponent = m_oTreeView.GetSubObjectAtPoint(p);
if (oComponent != null)
{
if (oComponent is Node)
{
Node oNode = oComponent as Node;
m_oTreeView.ClearDesignSelection();
if (bControl == false && bShift == false)
{
m_oTreeView.ClearDesignSelection();
m_oTreeView.ClearDesignHighlight();
m_oTreeView.ClearAllSelection();
}
if (bShift == true)
{
ArrayList selection = new ArrayList();
// for every node between selected node and the clicked node, alter the selection
int startOrder = 0;
if (m_oTreeView.SelectedNode != null)
startOrder = m_oTreeView.SelectedNode.NodeOrder;
int endOrder = oNode.NodeOrder;
if (startOrder <= endOrder)
{
for (int order = startOrder; order <= endOrder; order++)
{
Node node = m_oTreeView.GetNodeByOrder(order);
if (node == null)
continue;
node.TreeView = m_oTreeView;
node.SelectInternal(true);
selection.Add(node);
}
}
else
{
for (int order = endOrder; order <= startOrder; order++)
{
Node node = m_oTreeView.GetNodeByOrder(order);
if (node == null)
continue;
node.TreeView = m_oTreeView;
node.SelectInternal(true);
selection.Add(node);
}
}
m_bSkipSelectionChange = true;
m_oSelectionService.SetSelectedComponents(selection, SelectionTypes.Replace);
m_bSkipSelectionChange = false;
oNode.DesignSelected = true;
m_oTreeView.Invalidate();
}
else
{
if (oNode.IsSelected == true)
{
oNode.TreeView = m_oTreeView;
oNode.IsSelected = false;
oNode.DesignSelected = false;
m_bSkipSelectionChange = true;
if (bControl == true)
m_oSelectionService.SetSelectedComponents(new Component[] {oNode}, SelectionTypes.Auto);
m_oTreeView.Invalidate();
m_bSkipSelectionChange = false;
}
else
{
oNode.TreeView = m_oTreeView;
oNode.SelectInternal(true);
oNode.DesignSelected = true;
m_oDragNode = oNode;
m_oSelectedNode = oNode;
m_bSkipSelectionChange = true;
if (bControl == false)
m_oSelectionService.SetSelectedComponents(new Component[] {oNode}, SelectionTypes.Replace);
else
m_oSelectionService.SetSelectedComponents(new Component[] {oNode}, SelectionTypes.Auto);
m_oTreeView.Invalidate();
m_bSkipSelectionChange = false;
}
}
}
break;
}
if (m_oTreeView.Style.ShowPlusMinus == true && m_oTreeView.IsExpandBox(p) == true)
{
Node oNode = m_oTreeView.GetNodeByItemBox(m_oTreeView.GetExpandBoxRect(p));
if (oNode != null)
{
if (oNode.IsExpanded == true && oNode.CanCollapse == true)
oNode.IsExpanded = false;
else if (oNode.IsExpanded == false)
oNode.IsExpanded = true;
}
try
{
RaiseComponentChanging(TypeDescriptor.GetProperties(oNode)["IsExpanded"]);
}
catch
{
}
try
{
RaiseComponentChanged(TypeDescriptor.GetProperties(oNode)["IsExpanded"], null, null);
}
catch
{
}
break;
}
if (m_oTreeView.IsNodeCheckBox(p) == true)
{
Node oNode = m_oTreeView.GetNodeByItemCheckBox(m_oTreeView.GetNodeCheckBoxRect(p));
oNode.ToggleChecked();
try
{
RaiseComponentChanging(TypeDescriptor.GetProperties(oNode)["Checked"]);
}
catch
{
}
try
{
RaiseComponentChanged(TypeDescriptor.GetProperties(oNode)["Checked"], null, null);
}
catch
{
}
break;
}
m_oTreeView.ClearAllSelection();
m_oTreeView.ClearDesignSelection();
m_oTreeView.ClearDesignHighlight();
m_bSkipSelectionChange = true;
m_oSelectionService.SetSelectedComponents(new Component[] {m_oTreeView}, SelectionTypes.Replace);
m_bSkipSelectionChange = false;
#endregion
break;
case WM_MOUSEMOVE:
#region mouse move
if (m_oSelector.Visible == false)
{
POINT screenPoint = new POINT();
screenPoint.x = m_oTreeView.Location.X - 8;
screenPoint.y = m_oTreeView.Location.Y - 8;
User32.ClientToScreen(m_oTreeView.Parent.Handle, ref screenPoint);
// m_oSelector.Show(screenPoint.x, screenPoint.y);
}
// try to find the group or node object and set the object to the property window
oComponent = m_oTreeView.GetSubObjectAtPoint(p);
Cursor.Current = System.Windows.Forms.Cursors.Arrow;
// if we are dragging and the button is not pressed, then skip the dragging
if (m_bIsDragging == true && lButton == false)
{
m_oTreeView.DragDropNode = null;
m_bMouseDown = false;
m_bIsDragging = false;
m_oDragNode = null;
if (m_oDragDropPop != null)
{
m_oDragDropPop.Close();
m_oDragDropPop.Dispose();
m_oDragDropPop = null;
}
m_oTreeView.ClearDesignHighlight();
m_oTreeView.Invalidate();
//Cursor.Current = m_oLastCursor;
break;
}
// Test the dragging at the border area
if (p.X <= 4 || p.Y <= 4 || p.X >= m_oTreeView.Width - 8 || p.Y >= m_oTreeView.Height - 3)
{
m_oTreeView.DragDropNode = null;
m_bMouseDown = false;
m_bIsDragging = false;
m_oDragNode = null;
if (m_oDragDropPop != null)
{
m_oDragDropPop.Close();
m_oDragDropPop.Dispose();
m_oDragDropPop = null;
}
m_oTreeView.ClearDesignHighlight();
m_oTreeView.Invalidate();
//Cursor.Current = m_oLastCursor;
break;
}
if (oComponent != null || m_oTreeView.IsExpandBox(p) == true || m_oTreeView.IsNodeCheckBox(p))
{
m_oLastCursor = Cursor.Current;
Cursor.Current = System.Windows.Forms.Cursors.Arrow;
}
//else
//Cursor.Current = m_oLastCursor;
// start the dragging of the mouse is moving and the mouse button is still at its down state
#region dragdrop start test
if (m_bIsDragging == false && m_bMouseDown == true && (oComponent is Node) && m_oMouseDown != p
&& (m_oDragDropPop == null || m_oDragDropPop.Visible == false))
{
if (Math.Abs(m_oMouseDown.X - p.X) > 3 || Math.Abs(m_oMouseDown.Y - p.Y) > 3)
{
m_bIsDragging = true;
m_oDragNode = oComponent as Node;
if (m_oDragNode != null)
{
m_oDragDropPop = new DragDropPopup(m_oDragNode);
m_oDragDropPop.Show();
m_oTreeView.Focus();
}
}
}
#endregion
// test the moving if the moving is at some drop node allow the drop and if it is at something
// not allowed, then draw the dragdrop node control in red background
#region dragdrop node drop test
if (m_bIsDragging == true && m_bMouseDown == true && m_oMouseDown != p && m_oDragDropPop != null)
{
m_oDragDropPop.CanDrop = false;
m_oDragDropPop.IsCopy = bControl;
m_oDragDropPop.Left = m_oTreeView.PointToScreen(p).X + 10;
m_oDragDropPop.Top = m_oTreeView.PointToScreen(p).Y + 10;
// get the drop object and check if we can drop it here
// try to find the group or node object and set the object to the property window
Node oCanDropNode = m_oTreeView.GetSubObjectAtPoint(p) as Node;
if (oCanDropNode != null)
{
if (m_oDragNode != null && m_oDragNode.IsSomeParent(oCanDropNode) == false)
m_oDragDropPop.CanDrop = true;
}
if (oCanDropNode != null && oCanDropNode.IsExpanded == false)
{
// start the expand timer
m_oTimerExpandNode = oCanDropNode;
Timer timer = new Timer();
timer.Interval = 800;
timer.Tick += new EventHandler(this.ExpandTimerTick);
timer.Enabled = true;
}
m_oDragDropPop.Refresh();
}
#endregion
// test the dragdrop while moving, if the scroller is used in the nodes area, then start the scrolling thread
// and if the scrolling thread is running and the mouse has left the autoscroll area, then stop the scrolling
#region dragdrop nodes autoscroll
if (m_bIsDragging == true && m_oTreeView.Controls.Contains(m_oTreeView.m_oScrollBar) == true
&& m_oDragNode != null)
{
int nAdd = 10;
if (m_oTreeView.Controls.Contains(m_oTreeView.m_oHScrollBar))
nAdd += m_oTreeView.m_oHScrollBar.Height;
if (p.Y < 10)
{
if (m_oDragScrollThread != null)
try
{
m_oDragScrollThread.Abort();
}
catch
{
}
m_oDragScrollThread = new System.Threading.Thread(new System.Threading.ThreadStart(this.OnDragScrollDown));
m_oDragScrollThread.Start();
}
else if (p.Y > m_oTreeView.Height - nAdd)
{
if (m_oDragScrollThread != null)
try
{
m_oDragScrollThread.Abort();
}
catch
{
}
m_oDragScrollThread = new System.Threading.Thread(new System.Threading.ThreadStart(this.OnDragScrollUp));
m_oDragScrollThread.Start();
}
else
{
// if the mouse is outside the scrolling area and the scrolling thread is running stop the scrolling
if (m_oDragScrollThread != null)
try
{
m_oDragScrollThread.Abort();
}
catch
{
}
}
}
#endregion
// create the highlighting while mouse draging
if (oComponent != null)
{
m_oTreeView.ClearDesignHighlight();
// check for the node, if we are moving above the node, check if we are not in the dragging mode
#region Node dragdrop structure creation and dragdrop check
if (oComponent is Node && m_oDragNode != null)
{
Node oNode = oComponent as Node;
if (oNode == m_oDragNode)
break;
// we are not dragging, just hightlight the node
if (m_bIsDragging == false)
{
oNode.DesignHighlighted = true;
m_oTreeView.Invalidate();
}
else
{
// we are in the dragging mode, get the node's rectangle and do some more calculations and
// operations here
Rectangle oRect = m_oTreeView.GetNodeRect(oNode);
// test the area where we are with the actual point of drag.
if (p.Y >= oRect.Top && p.Y < oRect.Top + ((float) oRect.Height/2.0))
{
if (p.X > m_oMouseDown.X + 3)
// we are in the upper part of the node, but in the right side, drop under
m_oTreeView.DragDropNode = new NodeDragDrop(m_oDragNode, oNode, NodeDropMode.DropUnder);
else
// we are in the upper part of the node
m_oTreeView.DragDropNode = new NodeDragDrop(m_oDragNode, oNode, NodeDropMode.DropInfront);
}
else if (p.Y >= oRect.Top + ((float) oRect.Height/2.0) && p.Y <= oRect.Bottom)
{
// we are in the lower part of the node
if (p.X > m_oMouseDown.X + 3)
// test the X coordinate, if we are in the right from the pop, then behave in that way
m_oTreeView.DragDropNode = new NodeDragDrop(m_oDragNode, oNode, NodeDropMode.DropUnder);
else
// test the X coordinate, if we are in the right from the pop, then behave in that way
m_oTreeView.DragDropNode = new NodeDragDrop(m_oDragNode, oNode, NodeDropMode.DropAfter);
}
}
}
#endregion
// node design highlight check
if (oComponent is Node && m_oDragNode == null)
{
Node oNode = oComponent as Node;
oNode.DesignHighlighted = true;
m_oTreeView.Invalidate();
if (oNode != m_oHighlightedNode)
{
OnNodeMouseLeave(m_oHighlightedNode);
OnNodeMouseEnter(oNode);
m_oHighlightedNode = oNode;
}
}
break;
}
OnNodeMouseLeave(m_oHighlightedNode);
m_oHighlightedNode = null;
m_oTreeView.ClearDesignHighlight();
m_oTreeView.Invalidate();
#endregion
break;
case WM_LBUTTONUP:
Cursor.Current = System.Windows.Forms.Cursors.Arrow;
#region button up
// stop the drag drop scrolling thread
if (m_oDragScrollThread != null)
try
{
m_oDragScrollThread.Abort();
}
catch
{
}
if (m_oDragNode == null || m_bIsDragging == false)
{
m_bMouseDown = false;
m_bIsDragging = false;
m_oDragNode = null;
if (m_oDragDropPop != null)
{
m_oDragDropPop.Close();
m_oDragDropPop.Dispose();
m_oDragDropPop = null;
}
m_oTreeView.DragDropNode = null;
m_oTreeView.Invalidate();
break;
}
if (m_bIsDragging == true && m_oDragDropPop.CanDrop == false)
{
m_bMouseDown = false;
m_bIsDragging = false;
m_oDragNode = null;
m_oTreeView.DragDropNode = null;
m_oDragDropPop.Close();
m_oDragDropPop.Dispose();
m_oDragDropPop = null;
m_oTreeView.Invalidate();
break;
}
// try to find the group or node object and set the object to the property window
Node oDropNode = m_oTreeView.GetSubObjectAtPoint(p) as Node;
// test the drop target if we are not droping at the same place
if (oDropNode != null && m_oDragNode != null && oDropNode == m_oDragNode)
{
m_bMouseDown = false;
m_bIsDragging = false;
if (m_oDragDropPop != null)
{
m_oDragDropPop.Close();
m_oDragDropPop.Dispose();
m_oDragDropPop = null;
}
m_oTreeView.DragDropNode = null;
m_oTreeView.Invalidate();
break;
}
#region droping at node
// perform the drop of the node
if (oDropNode != null)
{
// remove the node from its parent collection
if (bControl == false)
m_oDragNode.Collection.Remove(m_oDragNode);
Node oCopyNode = m_oDragNode;
if (bControl == true)
oCopyNode = CloneNode(m_oDragNode);
// check where we are dropping, we can test the TreeView's nodedrop variables
if (m_oTreeView.DragDropNode != null
&& m_oTreeView.DragDropNode.NodeDropMode == NodeDropMode.DropUnder)
{
// drop at the node
// add the node to the new parent holder
oCopyNode.TreeView = oDropNode.TreeView;
oCopyNode.SetParent(oDropNode);
oCopyNode.YOrder = 0;
oDropNode.Nodes.Insert(0, oCopyNode);
foreach (Node oSubNode in oCopyNode.Nodes)
oSubNode.m_nCollectionOrder = oSubNode.YOrder;
}
else if (m_oTreeView.DragDropNode != null
&& m_oTreeView.DragDropNode.NodeDropMode == NodeDropMode.DropAfter)
{
// we are droping the node behind the drop node selected
Node oNode = m_oTreeView.DragDropNode.DropNode;
if (oNode.Collection.Count - 1 == oNode.Index)
{
// add the node to the new parent holder
oCopyNode.TreeView = oNode.TreeView;
oCopyNode.NodeMoving = true;
oCopyNode.Parent = oNode.Parent;
oNode.Collection.Add(oCopyNode);
oCopyNode.NodeMoving = false;
}
else
{
// add the node to the new parent holder
oCopyNode.TreeView = oNode.TreeView;
oCopyNode.NodeMoving = true;
oCopyNode.Parent = oNode.Parent;
oNode.Collection.Insert(oNode.Index + 1, oCopyNode);
oCopyNode.NodeMoving = false;
}
}
else if (m_oTreeView.DragDropNode != null
&& m_oTreeView.DragDropNode.NodeDropMode == NodeDropMode.DropInfront)
{
// we are droping the node infront the drop node selected
Node oNode = m_oTreeView.DragDropNode.DropNode;
// add the node to the new parent holder
oCopyNode.TreeView = oNode.TreeView;
oCopyNode.NodeMoving = true;
oCopyNode.Parent = oNode.Parent;
oNode.Collection.Insert(oNode.Index, oCopyNode);
oCopyNode.NodeMoving = false;
}
foreach (Node oCollectionNode in oCopyNode.Collection)
oCollectionNode.m_nCollectionOrder = oCollectionNode.Index;
// call the update of the properties
try
{
RaiseComponentChanging(TypeDescriptor.GetProperties(oCopyNode)["Parent"]);
}
catch
{
}
try
{
RaiseComponentChanged(TypeDescriptor.GetProperties(oCopyNode)["Parent"], null, null);
}
catch
{
}
try
{
RaiseComponentChanging(TypeDescriptor.GetProperties(oDropNode)["Nodes"]);
}
catch
{
}
try
{
RaiseComponentChanged(TypeDescriptor.GetProperties(oDropNode)["Nodes"], null, null);
}
catch
{
}
try
{
RaiseComponentChanging(TypeDescriptor.GetProperties(typeof (Node))["NodeStyle"]);
}
catch
{
}
try
{
RaiseComponentChanged(TypeDescriptor.GetProperties(typeof (Node))["NodeStyle"], null, null);
}
catch
{
}
try
{
RaiseComponentChanging(TypeDescriptor.GetProperties(typeof (Node))["NodeStyleSource"]);
}
catch
{
}
try
{
RaiseComponentChanged(TypeDescriptor.GetProperties(typeof (Node))["NodeStyleSource"], null, null);
}
catch
{
}
try
{
RaiseComponentChanging(TypeDescriptor.GetProperties(typeof (Node))["Text"]);
}
catch
{
}
try
{
RaiseComponentChanged(TypeDescriptor.GetProperties(typeof (Node))["Text"], null, null);
}
catch
{
}
try
{
RaiseComponentChanging(TypeDescriptor.GetProperties(typeof (Node))["ContextMenu"]);
}
catch
{
}
try
{
RaiseComponentChanged(TypeDescriptor.GetProperties(typeof (Node))["ContextMenu"], null, null);
}
catch
{
}
try
{
RaiseComponentChanging(TypeDescriptor.GetProperties(typeof (Node))["ContextMenuSource"]);
}
catch
{
}
try
{
RaiseComponentChanged(TypeDescriptor.GetProperties(typeof (Node))["ContextMenuSource"], null, null);
}
catch
{
}
try
{
RaiseComponentChanging(TypeDescriptor.GetProperties(typeof (Node))["Image"]);
}
catch
{
}
try
{
RaiseComponentChanged(TypeDescriptor.GetProperties(typeof (Node))["Image"], null, null);
}
catch
{
}
try
{
RaiseComponentChanging(TypeDescriptor.GetProperties(typeof (Node))["Imageindex"]);
}
catch
{
}
try
{
RaiseComponentChanged(TypeDescriptor.GetProperties(typeof (Node))["ImageIndex"], null, null);
}
catch
{
}
//oDropNode.ExpandAll();
}
#endregion
// clear the dragdrop properties
m_bMouseDown = false;
m_bIsDragging = false;
m_oDragNode = null;
m_oTreeView.DragDropNode = null;
m_oTreeView.Invalidate();
if (m_oDragDropPop != null)
{
m_oDragDropPop.Close();
m_oDragDropPop.Dispose();
m_oDragDropPop = null;
}
#endregion
break;
case WM_MOUSELEAVE:
m_oTreeView.DragDropNode = null;
m_bMouseDown = false;
m_bIsDragging = false;
m_oDragNode = null;
if (m_oDragDropPop != null)
{
m_oDragDropPop.Close();
m_oDragDropPop.Dispose();
m_oDragDropPop = null;
}
m_oTreeView.ClearDesignHighlight();
m_oTreeView.Invalidate();
OnNodeMouseLeave(m_oHighlightedNode);
m_oHighlightedNode = null;
//m_oSelector.Hide();
break;
case WM_PAINT:
// when there are some node to be destroyed from the clipboard action, then do it
// we have to do it here beacuse there is not an event that we can handle once the
// clipboard action is finished
foreach (Node node in NodeComponentToDestroy.ToArray())
{
node.DestroyComponent(m_oDesignerHost);
node.Remove();
}
NodeComponentToDestroy.Clear();
base.WndProc(ref m);
break;
default:
base.WndProc(ref m);
break;
}
}
catch (Exception e)
{
MessageBox.Show(e.ToString());
}
}
/// <summary>
///
/// </summary>
/// <param name="e"></param>
protected override void OnMouseMove(MouseEventArgs e)
{
base.OnMouseMove(e);
// if (m_bMouseMoveLocked == true)
// return;
Point p = new Point(e.X, e.Y);
Node oMouseMoveNode = GetSubObjectAtPoint(p) as Node;
// get the mouse down info and the coordinates, if we are starting to move mouse over the clicked node
// then start the drag drop operation
if (AutoDragDrop == true)
{
if (m_oButtonClicked == MouseButtons.Left && m_oDragNode == null && oMouseMoveNode != null && m_bDragDropNode == false)
{
if (Math.Abs(m_oMouseClickPoint.X - p.X) > 3 || Math.Abs(m_oMouseClickPoint.Y - p.Y) > 3)
{
if (oMouseMoveNode.AllowDrag == true)
{
m_bDragDropNode = true;
m_oDragNode = oMouseMoveNode;
if (m_oDragNode != null)
{
m_oDragDropPop = new DragDropPopup(m_oDragNode);
m_oDragDropPop.Show();
this.Focus();
}
}
}
}
}
#region dragdrop node drop test
if (m_bDragDropNode == true && m_oDragDropPop != null)
{
m_oDragDropPop.CanDrop = false;
m_oDragDropPop.Left = this.PointToScreen(p).X + 10;
m_oDragDropPop.Top = this.PointToScreen(p).Y + 10;
// get the drop object and check if we can drop it here
// try to find the group or node object and set the object to the property window
Node oCanDropNode = this.GetSubObjectAtPoint(p) as Node;
if (oCanDropNode != null)
{
if (oCanDropNode.AllowDrop == true)
{
if (m_oDragNode != null && m_oDragNode.IsSomeParent(oCanDropNode) == false)
m_oDragDropPop.CanDrop = true;
}
else
m_oDragDropPop.CanDrop = false;
}
if (oCanDropNode != null && oCanDropNode.IsExpanded == false)
{
// start the expand timer
m_oTimerExpandNode = oCanDropNode;
System.Windows.Forms.Timer timer = new System.Windows.Forms.Timer();
timer.Interval = 800;
timer.Tick += new EventHandler(this.ExpandTimerTick);
timer.Enabled = true;
}
m_oDragDropPop.Refresh();
}
#endregion
#region dragdrop autoscroll
if (Controls.Contains(m_oScrollBar) == true && m_oDragNode != null)
{
if (p.Y < 10 && m_bDragScrollDownRunning == false)
{
if (m_oDragScrollThread != null)
try
{
m_oDragScrollThread.Abort();
}
catch
{
}
m_oDragScrollThread = new Thread(new ThreadStart(this.OnDragScrollDown));
m_oDragScrollThread.Start();
}
else if (p.Y > this.Height - 10 && m_bDragScrollUpRunning == false)
{
if (m_oDragScrollThread != null)
try
{
m_oDragScrollThread.Abort();
}
catch
{
}
m_oDragScrollThread = new Thread(new ThreadStart(this.OnDragScrollUp));
m_oDragScrollThread.Start();
}
else
{
// if the mouse is outside the scrolling area and the scrolling thread is running stop the scrolling
if (m_oDragScrollThread != null)
try
{
m_oDragScrollThread.Abort();
}
catch
{
}
m_bDragScrollDownRunning = false;
m_bDragScrollUpRunning = false;
}
}
#endregion
#region Node dragdrop structure creation and dragdrop check
if (AutoDragDrop == true)
{
if (oMouseMoveNode != null)
{
if (m_oDragNode != null && oMouseMoveNode != m_oDragNode)
{
// we are not dragging, just hightlight the node
if (m_bDragDropNode == true)
{
// we are in the dragging mode, get the node's rectangle and do some more calculations and
// operations here
Rectangle oRect = GetNodeRect(oMouseMoveNode);
// test the area where we are with the actual point of drag.
if (p.Y >= oRect.Top && p.Y < oRect.Top + ((float) oRect.Height / 2.0))
{
if (p.X > m_oMouseClickPoint.X + 3)
// we are in the upper part of the node, but in the right side, drop under
DragDropNode = new NodeDragDrop(m_oDragNode, oMouseMoveNode, NodeDropMode.DropUnder);
else
// we are in the upper part of the node
DragDropNode = new NodeDragDrop(m_oDragNode, oMouseMoveNode, NodeDropMode.DropInfront);
}
else if (p.Y >= oRect.Top + ((float) oRect.Height / 2.0) && p.Y <= oRect.Bottom)
{
// we are in the lower part of the node
if (p.X > m_oMouseClickPoint.X + 3)
// test the X coordinate, if we are in the right from the pop, then behave in that way
DragDropNode = new NodeDragDrop(m_oDragNode, oMouseMoveNode, NodeDropMode.DropUnder);
else
// test the X coordinate, if we are in the right from the pop, then behave in that way
DragDropNode = new NodeDragDrop(m_oDragNode, oMouseMoveNode, NodeDropMode.DropAfter);
}
}
}
}
}
#endregion
HighlightedNode = null;
#region search for the node, if node found, highlight it
if (this.Style.TrackNodeHover == true)
{
foreach (Rectangle r in m_mapRectToSubItem.Keys)
{
if (r.Contains(e.X, e.Y) == false)
continue;
Node oNode = m_mapRectToSubItem[r] as Node;
if (oNode == null)
{
base.OnMouseMove(e);
return;
}
if (this.HighlightedNode == oNode)
{
base.OnMouseMove(e);
InvokeNodeMouseMove(e, oNode);
return;
}
this.HighlightedNode = oNode;
Invalidate();
if (this.MouseOverNode != null && this.MouseOverNode != oNode)
InvokeNodeMouseLeave(MouseOverNode);
if (this.MouseOverNode != oNode)
{
this.MouseOverNode = oNode;
InvokeNodeMouseEnter(MouseOverNode);
}
base.OnMouseMove(e);
InvokeNodeMouseMove(e, oNode);
return;
}
}
else
{
foreach (Rectangle r in m_mapRectToSubItem.Keys)
{
if (r.Contains(e.X, e.Y) == false)
continue;
Node oNode = m_mapRectToSubItem[r] as Node;
if (oNode == null)
{
base.OnMouseMove(e);
return;
}
if (this.MouseOverNode != null && this.MouseOverNode != oNode)
InvokeNodeMouseLeave(MouseOverNode);
if (this.MouseOverNode != oNode)
{
this.MouseOverNode = oNode;
InvokeNodeMouseEnter(MouseOverNode);
}
base.OnMouseMove(e);
InvokeNodeMouseMove(e, oNode);
Invalidate();
return;
}
}
#endregion
bool bInvalidate = false;
HighlightedNode = null;
if (MouseOverNode != null)
{
InvokeNodeMouseLeave(MouseOverNode);
bInvalidate = true;
}
MouseOverNode = null;
if (bInvalidate == true)
Invalidate();
}
/// <summary>
/// Called by the framework when the context menu is being shown
/// </summary>
/// <param name="x"></param>
/// <param name="y"></param>
protected override void OnContextMenu(int x, int y)
{
try
{
m_oTreeView.DragDropNode = null;
m_bMouseDown = false;
m_bIsDragging = false;
m_oDragNode = null;
if (m_oDragDropPop != null)
{
m_oDragDropPop.Close();
m_oDragDropPop.Dispose();
m_oDragDropPop = null;
}
m_oTreeView.ClearDesignHighlight();
m_oTreeView.Invalidate();
Component oComponent = m_oTreeView.GetSubObjectAtPoint(m_oTreeView.PointToClient(new Point(x, y)));
m_oContextMenuPoint = new Point(x, y);
if (oComponent is Node)
{
m_oTreeView.ClearNodeSelection();
m_oTreeView.ClearDesignSelection();
m_oTreeView.ClearDesignHighlight();
Node oNode = oComponent as Node;
oNode.TreeView = m_oTreeView;
oNode.DesignSelected = true;
oNode.Select();
m_oSelectedNode = oNode;
m_bSkipSelectionChange = true;
m_oSelectionService.SetSelectedComponents(new Component[] {oComponent}, SelectionTypes.Replace);
m_bSkipSelectionChange = false;
m_oTreeView.ClearDesignHighlight();
m_oTreeView.Invalidate();
m_oActionMenuTreeView.Hide();
m_oActionMenuNode.Show(x - 21, y);
return;
}
m_oTreeView.ClearNodeSelection();
m_oTreeView.ClearDesignSelection();
m_oTreeView.ClearDesignHighlight();
m_oSelectedNode = null;
m_bSkipSelectionChange = true;
m_oSelectionService.SetSelectedComponents(new Component[] {m_oTreeView}, SelectionTypes.Replace);
m_bSkipSelectionChange = false;
m_oTreeView.ClearDesignHighlight();
m_oTreeView.Invalidate();
m_oActionMenuNode.Hide();
m_oActionMenuTreeView.Show(x - 21, y);
}
catch (Exception ex)
{
System.Console.Out.WriteLine(ex.ToString());
}
}
