// Edit view
private void EditView(TreeNode node)
{
ViewPropertiesForm form = new ViewPropertiesForm();
string fullName = camerasTree.GetViewFullName(node);
// build cameras tree
form.BuildCamerasTree(config.camerasGroups, config.cameras);
// set callback for view name checking
form.CheckViewFunction = new CheckViewHandler(CheckView);
// get view
form.View = viewToEdit = config.GetViewByName(fullName);
// catch Apply event
form.Apply += new EventHandler(editView_Apply);
nodeToEdit = node;
if (form.ShowDialog() == DialogResult.OK)
{
config.SaveViews();
// modify tree
node.Text = viewToEdit.Name;
}
nodeToEdit = null;
}
// Add new view
public void AddView(View view)
{
view.ID = nextViewID++;
views.Add(view);
// save
SaveViews();
}
// Ñheck if the view is already exist
private bool CheckView(View view)
{
return config.CheckView(view);
}
// Delete view
public bool DeleteView(View view)
{
views.Remove(view);
// save
SaveViews();
return true;
}
// Load views
private void LoadViews(XmlTextReader reader, Group parent)
{
// load all groups
while (reader.Name == "Group")
{
int depth = reader.Depth;
// create new group
Group group = new Group(reader.GetAttribute("name"));
group.ID = int.Parse(reader.GetAttribute("id"));
group.Description = reader.GetAttribute("desc");
group.Parent = parent;
// add group
viewsGroups.Add(group);
if (group.ID >= nextViewsGroupID)
nextViewsGroupID = group.ID + 1;
// move to next node
reader.Read();
// move to next element node
while (reader.NodeType == XmlNodeType.EndElement)
reader.Read();
// read children
if (reader.Depth > depth)
LoadViews(reader, group);
//
if (reader.Depth < depth)
return;
}
// load all views
while (reader.Name == "View")
{
int depth = reader.Depth;
// create new camera
View view = new View(reader.GetAttribute("name"));
view.ID = int.Parse(reader.GetAttribute("id"));
view.Description = reader.GetAttribute("desc");
view.Parent = parent;
// view size
view.Rows = short.Parse(reader.GetAttribute("rows"));
view.Cols = short.Parse(reader.GetAttribute("cols"));
view.CellWidth = short.Parse(reader.GetAttribute("width"));
view.CellHeight = short.Parse(reader.GetAttribute("height"));
// read cameras
string[] strIDs = reader.GetAttribute("cameras").Split(',');
for (int i = 0, k = 0; i < View.MaxRows; i++)
{
for (int j = 0; j < View.MaxCols; j++, k++)
{
view.SetCamera(i, j, int.Parse(strIDs[k]));
}
}
// add view
views.Add(view);
if (view.ID >= nextViewID)
nextViewID = view.ID + 1;
// move to next node
reader.Read();
// move to next element node
while (reader.NodeType == XmlNodeType.EndElement)
reader.Read();
if (reader.Depth < depth)
return;
}
}
// Check view
// check if there is already a view with such name
// return true, if there is no such view
public bool CheckView(View view)
{
foreach (View v in views)
{
if ((view.Name == v.Name) && (view.Parent == v.Parent) && ((view.ID == 0) || (view.ID != v.ID)))
return false;
}
return true;
}
// Apply the page
public bool Apply()
{
string name = nameBox.Text.Replace('\\', ' ');
if (checkViewFunction != null)
{
View tmpView = new View(name);
tmpView.ID = view.ID;
tmpView.Parent = view.Parent;
// check view
if (checkViewFunction(tmpView) == false)
{
Color tmp = this.nameBox.BackColor;
// highlight name edit box
this.nameBox.BackColor = Color.LightCoral;
// error message
XtraMessageBox.Show(this, "A view with such name is already exist", "Error", MessageBoxButtons.OK, MessageBoxIcon.Stop);
// restore & focus name edit box
this.nameBox.BackColor = tmp;
this.nameBox.Focus();
return false;
}
}
// update view name and description
view.Name = name;
view.Description = descriptionBox.Text;
try
{
view.CellWidth = short.Parse(cellWidthBox.Text);
view.CellHeight = short.Parse(cellHeightBox.Text);
}
catch (Exception)
{
}
return true;
}
// Remove view from the collection
public void Remove(View view)
{
InnerList.Remove(view);
}
// Add new view to the collection
public void Add(View view)
{
InnerList.Add(view);
}
// Add view
public TreeNode AddView(View view, TreeNode parentNode)
{
// create new
TreeNode node = new TreeNode(view.Name, viewImage, viewSelectedImage);
// add it to tree
parentNode.Nodes.Add(node);
return node;
}