/// <summary>
/// Draws the data of a tree node at the specified location.</summary>
/// <param name="node">The tree control's node whose data is to be drawn</param>
/// <param name="g">The current GDI+ graphics object</param>
/// <param name="x">The x-coordinate of the upper-left corner of the node label</param>
/// <param name="y">The y-coordinate of the upper-left corner of the node label</param>
public override void DrawData(TreeControl.Node node, Graphics g, int x, int y)
{
var treeListControl = node.TreeControl as TreeListControl;
ItemInfo info = new WinFormsItemInfo();
m_itemView.GetInfo(node.Tag, info);
if (info.Properties.Length ==0)
return;
Region oldClip = g.Clip;
UpdateColumnWidths(node, info, g);
int xOffset = treeListControl.TreeWidth;
for (int i = 0; i < info.Properties.Length; ++i)
{
var dataEditor = info.Properties[i] as DataEditor;
if (dataEditor != null) // show object data details in columns
{
if (TrackingEditor != null && (TrackingEditor.Owner == node.Tag) &&
(TrackingEditor.Name == dataEditor.Name))
dataEditor = TrackingEditor;
var clip = new Rectangle(xOffset, y, treeListControl.Columns[i].ActualWidth, treeListControl.GetRowHeight(node));
if (i == info.Properties.Length-1) // extends last column
clip.Width = node.TreeControl.ActualClientSize.Width - xOffset;
g.SetClip(clip);
dataEditor.PaintValue(g, clip);
}
xOffset += treeListControl.Columns[i].ActualWidth;
}
g.Clip = oldClip;
}
/// <summary>
/// Updates an item to the current state of its corresponding object</summary>
private void UpdateItem(ListViewItem item)
{
ItemInfo info = new WinFormsItemInfo(m_control.SmallImageList);
m_itemView.GetInfo(item.Tag, info);
string label = info.Label;
item.SubItems.Clear();
if (info.Properties != null)
{
int count = Math.Min(m_columnNames.Length, info.Properties.Length);
for (int i = 0; i < count; i++)
{
object value = info.Properties[i];
ListViewItem.ListViewSubItem subItem =
new ListViewItem.ListViewSubItem(item, GetObjectString(value));
subItem.Tag = value;
item.SubItems.Add(subItem);
}
}
item.Text = label;
item.ImageIndex = info.ImageIndex;
item.Checked = info.Checked;
if (item.Font.Style != info.FontStyle)
{
item.Font = new Font(item.Font, info.FontStyle);
}
}
/// <summary>
/// Gets the children of the given parent object</summary>
/// <param name="parent">Parent object</param>
/// <returns>Enumeration of children of the parent object</returns>
public IEnumerable <object> GetChildren(object parent)
{
if (parent == this)
{
foreach (string categoryName in m_categories.Keys)
{
yield return(categoryName);
}
}
else
{
string categoryName = parent as string;
if (categoryName != null)
{
List <object> category;
if (m_categories.TryGetValue(categoryName, out category))
{
foreach (object item in category)
{
ItemInfo info = new WinFormsItemInfo();
GetInfo(item, info);
if (m_searchInput.IsNullOrEmpty() ||
m_searchInput.Matches(info.Label))
{
yield return(item);
}
}
}
}
}
}
/// <summary>
/// Callback to determine if an item in the tree is filtered in (return true) or out</summary>
/// <param name="item">Item tested for filtering</param>
/// <returns>True if filtered in, false if filtered out</returns>
public bool DefaultFilter(object item)
{
IItemView itemView = TreeView.As <IItemView>();
if (itemView != null)
{
ItemInfo info = new WinFormsItemInfo();
itemView.GetInfo(item, info);
return(SearchInputUI.IsNullOrEmpty() || SearchInputUI.Matches(info.Label));
}
return(true); // Don't filter anything if the context doesn't implement IItemView
}
/// <summary>
/// Callback to determine if an item in the tree is filtered in (return true) or out</summary>
/// <param name="item">Item tested for filtering</param>
/// <returns>True if filtered in, false if filtered out</returns>
public bool DefaultFilter(object item)
{
bool result = true;
IItemView itemView = TreeView.As<IItemView>();
if(!SearchInputUI.IsNullOrEmpty())
{
ItemInfo info = new WinFormsItemInfo();
itemView.GetInfo(item, info);
result = info.Label != null && SearchInputUI.Matches(info.Label);
}
return result;
}
/// <summary>
/// Callback to determine if an item in the tree is filtered in (return true) or out</summary>
/// <param name="item">Item tested for filtering</param>
/// <returns>True if filtered in, false if filtered out</returns>
public bool DefaultFilter(object item)
{
bool result = true;
IItemView itemView = TreeView.As <IItemView>();
if (!SearchInputUI.IsNullOrEmpty())
{
ItemInfo info = new WinFormsItemInfo();
itemView.GetInfo(item, info);
result = info.Label != null && SearchInputUI.Matches(info.Label);
}
return(result);
}
/// <summary>
/// Callback to determine if an item in the tree is filtered in (return true) or out</summary>
/// <param name="item">Item tested for filtering</param>
/// <returns>True if filtered in, false if filtered out</returns>
public bool DefaultFilter(object item)
{
bool result = true;
IItemView itemView = TreeView.As <IItemView>();
if (m_TagPanel.TagList.Count != 0)
{
ItemInfo info = new WinFormsItemInfo();
itemView.GetInfo(item, info);
result = info.Label != null && m_TagPanel.Matches(info.Label);
}
return(result);
}
private void searchInput_Updated(object sender, EventArgs e)
{
if (TreeControl.Root == null)
{
return;
}
if (m_searchInput.IsNullOrEmpty())
{
if (m_searching)
{
// get the tree control to force-reload the tree data
m_paletteTreeAdapter.RefreshControl();
RestoreExpansion();
}
m_searching = false;
return;
}
else
{
if (!m_searching)
{
RememberExpansion();
}
m_searching = true;
}
m_paletteTreeAdapter.RefreshControl();
// expand categories that have matched children
foreach (object category in m_paletteTreeAdapter.GetChildren(m_paletteTreeAdapter))
{
foreach (object typeName in m_paletteTreeAdapter.GetChildren(category))
{
ItemInfo info = new WinFormsItemInfo();
m_paletteTreeAdapter.GetInfo(typeName, info);
if (m_searchInput.Matches(info.Label))
{
TreeControlAdapter.Expand(category);
break;
}
}
}
RestoreExpansion();
}
/// <summary>
/// Gets the object tags of the current selection</summary>
private List <object> GetSelectedObjects()
{
List <object> result = new List <object>();
foreach (ListViewItem listViewItem in m_control.SelectedItems)
{
if (listViewItem.Tag != null)
{
object item = listViewItem.Tag;
ItemInfo info = new WinFormsItemInfo(m_control.SmallImageList);
m_itemView.GetInfo(item, info);
if (info.AllowSelect)
{
result.Add(item);
}
}
}
return(result);
}
private void UpdateNode(TreeControl.Node node)
{
ItemInfo info = new WinFormsItemInfo(m_treeControl.ImageList, m_treeControl.StateImageList);
info.IsExpandedInView = node.Expanded;
if (m_itemView != null &&
node.Tag != null)
{
m_itemView.GetInfo(node.Tag, info);
}
node.Label = info.Label;
node.FontStyle = info.FontStyle;
node.ImageIndex = info.ImageIndex;
node.StateImageIndex = info.StateImageIndex;
node.IsLeaf = info.IsLeaf;
node.HasCheck = info.HasCheck;
node.CheckBoxEnabled = info.CheckBoxEnabled;
node.CheckState = info.GetCheckState();
node.AllowSelect = info.AllowSelect;
node.AllowLabelEdit = info.AllowLabelEdit;
node.HoverText = info.HoverText;
if (m_selectionContext != null && !m_synchronizingSelection)
{
try
{
m_synchronizingSelection = true;
node.Selected = m_selectionContext.SelectionContains(MakePath(node));
}
finally
{
m_synchronizingSelection = false;
}
}
}
private static ItemInfo GetItemInfo(object item, IItemView itemView, ImageList imageList, ImageList stateImageList)
{
var info = new WinFormsItemInfo(imageList, stateImageList);
if (itemView == null)
{
info.Label = GetObjectString(item);
info.Properties = new object[0];
info.ImageIndex = TreeListView.InvalidImageIndex;
info.StateImageIndex = TreeListView.InvalidImageIndex;
info.CheckState = CheckState.Unchecked;
info.FontStyle = FontStyle.Regular;
info.IsLeaf = true;
info.IsExpandedInView = false;
info.HoverText = string.Empty;
}
else
{
itemView.GetInfo(item, info);
}
return(info);
}
/// <summary>
/// Updates an item to the current state of its corresponding object</summary>
private void UpdateItem(ListViewItem item)
{
ItemInfo info = new WinFormsItemInfo(m_control.SmallImageList);
m_itemView.GetInfo(item.Tag, info);
string label = info.Label;
item.SubItems.Clear();
if (info.Properties != null)
{
int count = Math.Min(m_columnNames.Length, info.Properties.Length);
for (int i = 0; i < count; i++)
{
object value = info.Properties[i];
ListViewItem.ListViewSubItem subItem =
new ListViewItem.ListViewSubItem(item, GetObjectString(value));
subItem.Tag = value;
item.SubItems.Add(subItem);
}
}
item.Text = label;
item.ImageIndex = info.ImageIndex;
item.Checked = info.Checked;
if (item.Font.Style != info.FontStyle)
item.Font = new Font(item.Font, info.FontStyle);
}
private void searchInput_Updated(object sender, EventArgs e)
{
if (TreeControl.Root == null)
return;
if (m_searchInput.IsNullOrEmpty())
{
if (m_searching)
{
// get the tree control to force-reload the tree data
TreeAdapter.RefreshControl();
RestoreExpansion();
}
m_searching = false;
return;
}
else
{
if (!m_searching)
RememberExpansion();
m_searching = true;
}
TreeAdapter.RefreshControl();
// expand categories that have matched children
foreach (object category in TreeAdapter.GetChildren(TreeAdapter))
{
foreach (object typeName in TreeAdapter.GetChildren(category))
{
ItemInfo info = new WinFormsItemInfo();
TreeAdapter.GetInfo(typeName, info);
if (m_searchInput.Matches(info.Label))
{
TreeControlAdapter.Expand(category);
break;
}
}
}
RestoreExpansion();
}
private void UpdateNode(TreeControl.Node node)
{
ItemInfo info = new WinFormsItemInfo(m_treeControl.ImageList, m_treeControl.StateImageList);
info.IsExpandedInView = node.Expanded;
if (m_itemView != null &&
node.Tag != null)
{
m_itemView.GetInfo(node.Tag, info);
}
node.Label = info.Label;
node.FontStyle = info.FontStyle;
node.ImageIndex = info.ImageIndex;
node.StateImageIndex = info.StateImageIndex;
node.IsLeaf = info.IsLeaf;
node.HasCheck = info.HasCheck;
node.CheckBoxEnabled = info.CheckBoxEnabled;
node.CheckState = info.GetCheckState();
node.AllowSelect = info.AllowSelect;
node.AllowLabelEdit = info.AllowLabelEdit;
node.HoverText = info.HoverText;
if (m_selectionContext != null && !m_synchronizingSelection)
{
try
{
m_synchronizingSelection = true;
node.Selected = m_selectionContext.SelectionContains(MakePath(node));
}
finally
{
m_synchronizingSelection = false;
}
}
}
/// <summary>
/// Get the data editor hit by point p; also set edit mode if the editor supports multiple controls.</summary>
/// <param name="node">The node</param>
/// <param name="p">The point</param>
/// <returns>Data editor hit by point</returns>
internal DataEditor GetDataEditor(TreeControl.Node node, Point p)
{
var treeListControl = node.TreeControl as TreeListControl;
ItemInfo info = new WinFormsItemInfo();
treeListControl.TreeListItemRenderer.ItemView.GetInfo(node.Tag, info);
if (info.Properties.Length != treeListControl.Columns.Count)
return null;
int left = treeListControl.TreeWidth;
for (int i = 0; i < treeListControl.Columns.Count; ++i)
{
var column = treeListControl.Columns[i];
if (p.X >= left && p.X <= left + column.ActualWidth)
{
var dataEditor = info.Properties[i] as DataEditor;
if (dataEditor != null)
{
foreach (NodeLayoutInfo nodeLayout in NodeLayout)
{
if (nodeLayout.Node == node)
{
dataEditor.TextBox = m_editTextBox;
dataEditor.Bounds = GetEditArea(nodeLayout, dataEditor);
dataEditor.SetEditingMode(p);
break;
}
}
}
return dataEditor;
}
left += column.ActualWidth;
}
return null;
}
/// <summary>
/// Gets the children of the given parent object</summary>
/// <param name="parent">Parent object</param>
/// <returns>Enumeration of children of the parent object</returns>
public IEnumerable<object> GetChildren(object parent)
{
if (parent == this)
{
foreach (string categoryName in m_categories.Keys)
yield return categoryName;
}
else
{
string categoryName = parent as string;
if (categoryName != null)
{
List<object> category;
if (m_categories.TryGetValue(categoryName, out category))
{
foreach (object item in category)
{
ItemInfo info = new WinFormsItemInfo();
GetInfo(item, info);
if (m_searchInput.IsNullOrEmpty() ||
m_searchInput.Matches(info.Label))
yield return item;
}
}
}
}
}
/// <summary>
/// Gets the object tags of the current selection</summary>
private List<object> GetSelectedObjects()
{
List<object> result = new List<object>();
foreach (ListViewItem listViewItem in m_control.SelectedItems)
{
if (listViewItem.Tag != null)
{
object item = listViewItem.Tag;
ItemInfo info = new WinFormsItemInfo(m_control.SmallImageList);
m_itemView.GetInfo(item, info);
if (info.AllowSelect)
result.Add(item);
}
}
return result;
}
/// <summary>
/// Callback to determine if an item in the tree is filtered in (return true) or out</summary>
/// <param name="item">Item tested for filtering</param>
/// <returns>True if filtered in, false if filtered out</returns>
public bool DefaultFilter(object item)
{
IItemView itemView = TreeView.As<IItemView>();
if (itemView != null)
{
ItemInfo info = new WinFormsItemInfo();
itemView.GetInfo(item, info);
return SearchInputUI.IsNullOrEmpty() || SearchInputUI.Matches(info.Label);
}
return true; // Don't filter anything if the context doesn't implement IItemView
}
private static ItemInfo GetItemInfo(object item, IItemView itemView, ImageList imageList, ImageList stateImageList)
{
var info = new WinFormsItemInfo(imageList, stateImageList);
if (itemView == null)
{
info.Label = GetObjectString(item);
info.Properties = new object[0];
info.ImageIndex = TreeListView.InvalidImageIndex;
info.StateImageIndex = TreeListView.InvalidImageIndex;
info.CheckState = CheckState.Unchecked;
info.FontStyle = FontStyle.Regular;
info.IsLeaf = true;
info.IsExpandedInView = false;
info.HoverText = string.Empty;
}
else
{
itemView.GetInfo(item, info);
}
return info;
}
