/// <summary>
/// Select or unselect edge
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void pictureBoxPreview_MouseClick(object sender, MouseEventArgs e)
{
if (m_activeElem == null || e.Button != MouseButtons.Left)
{
return;
}
ElementGeometry elemGeom = m_creationData.Creator.ElemGeomDic[m_activeElem];
foreach (Edge edge in m_creationData.Creator.SupportEdges[m_activeElem])
{
if (elemGeom.EdgeBindingDic.ContainsKey(edge))
{
if (elemGeom.EdgeBindingDic[edge].IsHighLighted)
{
bool isSelect = elemGeom.EdgeBindingDic[edge].IsSelected;
elemGeom.EdgeBindingDic[edge].IsHighLighted = false;
elemGeom.EdgeBindingDic[edge].IsSelected = !isSelect;
TreeNode node = GetEdgeTreeNode(edge);
CheckState state = isSelect ? CheckState.Unchecked : CheckState.Checked;
UpdateNodeCheckStatus(node, state);
pictureBoxPreview.Refresh();
treeViewHost.Refresh();
return;
}
}
}
}
/// <summary>
/// Clear Highlighted status of all highlighted edges.
/// </summary>
private void ClearAllHighLight()
{
if (m_activeElem == null)
{
return;
}
ElementGeometry elemGeom = m_creationData.Creator.ElemGeomDic[m_activeElem];
foreach (Edge edge in m_creationData.Creator.SupportEdges[m_activeElem])
{
elemGeom.EdgeBindingDic[edge].IsHighLighted = false;
}
}
/// <summary>
/// Update tree node check status, it will impact its children and parents' status.
/// </summary>
/// <param name="node">Tree node to update</param>
/// <param name="state">CheckState value</param>
private void UpdateNodeCheckStatus(TreeNode node, CheckState state)
{
node.StateImageIndex = (int)state;
if (node.Tag != null && node.Tag is Edge && m_activeElem != null)
{
Edge edge = node.Tag as Edge;
Autodesk.Revit.DB.Element elem = node.Parent.Tag as Autodesk.Revit.DB.Element;
ElementGeometry elemGeom = m_creationData.Creator.ElemGeomDic[elem];
elemGeom.EdgeBindingDic[edge].IsSelected =
(node.StateImageIndex == (int)CheckState.Checked);
}
UpdateChildren(node);
UpdateParent(node);
}
/// <summary>
/// Highlight the edge in the preview
/// if mouse-over an edge tree-node.
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void treeViewHost_NodeMouseHover(object sender, TreeNodeMouseHoverEventArgs e)
{
TreeNode node = e.Node;
treeViewHost.SelectedNode = e.Node;
ClearAllHighLight();
ActiveNode(node);
pictureBoxPreview.Refresh();
if (m_activeElem == null || node.Tag == null || !(node.Tag is Edge))
{
return;
}
ElementGeometry elemGeom = m_creationData.Creator.ElemGeomDic[m_activeElem];
elemGeom.EdgeBindingDic[node.Tag as Edge].IsHighLighted = true;
pictureBoxPreview.Refresh();
}
/// <summary>
/// Draw the geometry.
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void pictureBoxPreview_Paint(object sender, PaintEventArgs e)
{
if (m_activeElem == null)
{
return;
}
ElementGeometry elemGeo = null;
if (!m_creationData.Creator.ElemGeomDic.TryGetValue(m_activeElem, out elemGeo))
{
return;
}
e.Graphics.Transform = m_centerMatrix;
e.Graphics.SmoothingMode = SmoothingMode.HighQuality;
elemGeo.Draw(e.Graphics);
}
/// <summary>
/// Rotate or zoom the displayed geometry, or highlight the edge under the mouse location.
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void pictureBoxPreview_MouseMove(object sender, MouseEventArgs e)
{
if (m_activeElem == null)
{
return;
}
m_trackBall.OnMouseMove(e);
if (e.Button == MouseButtons.Left)
{
m_creationData.Creator.ElemGeomDic[m_activeElem].Rotation *= m_trackBall.Rotation;
pictureBoxPreview.Refresh();
}
else if (e.Button == MouseButtons.Right)
{
m_creationData.Creator.ElemGeomDic[m_activeElem].Scale *= m_trackBall.Scale;
pictureBoxPreview.Refresh();
}
if (e.Button == MouseButtons.None)
{
ClearAllHighLight();
pictureBoxPreview.Refresh();
Matrix mat = (Matrix)m_centerMatrix.Clone();
mat.Invert();
PointF[] pts = new PointF[1] {
e.Location
};
mat.TransformPoints(pts);
ElementGeometry elemGeom = m_creationData.Creator.ElemGeomDic[m_activeElem];
foreach (Edge edge in m_creationData.Creator.SupportEdges[m_activeElem])
{
if (elemGeom.EdgeBindingDic.ContainsKey(edge))
{
if (elemGeom.EdgeBindingDic[edge].HighLight(pts[0].X, pts[0].Y))
{
pictureBoxPreview.Refresh();
}
}
}
}
}
/// <summary>
/// Recursively update tree children's status to match its parent status.
/// </summary>
/// <param name="node">Parent node whose children will be updated</param>
private void UpdateChildren(TreeNode node)
{
foreach (TreeNode child in node.Nodes)
{
if (child.StateImageIndex != node.StateImageIndex)
{
child.StateImageIndex = node.StateImageIndex;
if (m_activeElem != null && child.Tag != null && child.Tag is Edge)
{
Edge edge = child.Tag as Edge;
Autodesk.Revit.DB.Element elem = child.Parent.Tag as Autodesk.Revit.DB.Element;
ElementGeometry elemGeom = m_creationData.Creator.ElemGeomDic[elem];
elemGeom.EdgeBindingDic[edge].IsSelected =
(child.StateImageIndex == (int)CheckState.Checked);
}
}
UpdateChildren(child);
}
}
