protected VerticalPositioning( TreeNodeCollection nodes, IRenderer renderer, ITreeInfo treeInfo, ITreeEvents treeEvents )
{
_nodes = nodes;
_renderer = renderer;
_treeInfo = treeInfo;
_treeEvents = treeEvents;
}
public void ProcessClick( Graphics g, TreeNode treeNode, Rectangle nodeRectangle, Point p, ITreeInfo treeInfo, ITreeEvents treeEvents )
{
Size ecSize = GetGlyphSize( g, treeNode.IsExpanded );
Rectangle ecBounds = new Rectangle( nodeRectangle.X + _leftSep, nodeRectangle.Y + (nodeRectangle.Height - ecSize.Height) / 2, ecSize.Width, ecSize.Height );
if( ecBounds.Contains( p ) && treeNode.ChildNodes.Count > 0 )
{
if( !treeInfo.IsAnimating() )
{
treeEvents.ToggleNodeExpansion( treeNode );
}
}
else
{
treeEvents.SelectNode( treeNode );
}
}
public Size MeasureTreeNode( Graphics g, ITreeInfo treeInfo, TreeNode treeNode, bool needsWidth, bool needsHeight )
{
Size textSize = WinFormsUtility.Drawing.GdiPlusEx.MeasureString( g, treeNode.Text, treeNode.Font, int.MaxValue );
Size ecSize = GetGlyphSize( g, treeNode.IsExpanded );
int width = (int) textSize.Width + _leftSep + _ecSep + ecSize.Width + _rightSep;
int height = (int) textSize.Height;
if( treeNode.Icon != null )
{
width += _imageSep + treeNode.Icon.Size.Width;
height = Math.Max( height, treeNode.Icon.Size.Height );
}
height += _verticalSep;
return new Size( width, height );
}
public void PreRender( ITreeInfo treeInfo, ITreeEvents treeEvents )
{
}
public int MeasureIndent( Graphics g, ITreeInfo treeInfo, TreeNode node )
{
return node.Depth * _indent;
}
public void RenderTreeNode( Graphics g, ITreeInfo treeInfo, TreeNode treeNode, Rectangle nodeRectangle, Rectangle clip )
{
bool isLast = (treeNode.Index == treeNode.ParentCollection.Count - 1);
Size ecSize = GetGlyphSize( g, treeNode.IsExpanded );
Point ecCenter = new Point( nodeRectangle.X + _leftSep + ecSize.Width / 2, nodeRectangle.Y + (nodeRectangle.Height - ecSize.Height) / 2 + ecSize.Height / 2 );
using( Brush brush = new HatchBrush( HatchStyle.Percent50, SystemColors.Window, SystemColors.GrayText ) )
using( Pen pen = new Pen( brush ) )
{
g.DrawLine( pen, ecCenter, new Point( ecCenter.X + 12, ecCenter.Y ) );
g.DrawLine( pen, ecCenter, new Point( ecCenter.X, nodeRectangle.Y ) );
if( !isLast )
{
g.DrawLine( pen, ecCenter, new Point( ecCenter.X, nodeRectangle.Bottom ) );
}
}
int textX = nodeRectangle.X + ecSize.Width + _leftSep + _ecSep;
if( treeNode.Icon != null )
{
Icon image = treeNode.Icon;
g.DrawIconUnstretched( image, new Rectangle( textX, nodeRectangle.Y + (nodeRectangle.Height - image.Height) / 2, image.Width, image.Height ) );
textX += image.Width + _imageSep;
}
if( treeInfo.IsSelected( treeNode ) )
{
Brush brush = treeInfo.IsTreeFocused() ? SystemBrushes.Highlight : SystemBrushes.Control;
g.FillRectangle( brush, textX, nodeRectangle.Y, nodeRectangle.Right - textX + 2, nodeRectangle.Height - 1 );
if( treeInfo.IsTreeFocused() )
{
using( Brush hatchBrush = new HatchBrush( HatchStyle.Percent50, SystemColors.Highlight ) )
using( Pen pen = new Pen( hatchBrush ) )
{
g.DrawRectangle( pen, textX, nodeRectangle.Y, nodeRectangle.Right - textX + 2, nodeRectangle.Height - 1 );
}
}
}
WinFormsUtility.Drawing.GdiPlusEx.DrawString
( g, treeNode.Text, treeNode.Font, SystemColors.ControlText
, new Rectangle( textX + 2, nodeRectangle.Y + _verticalSep, int.MaxValue, int.MaxValue )
, WinFormsUtility.Drawing.GdiPlusEx.TextSplitting.SingleLineEllipsis, WinFormsUtility.Drawing.GdiPlusEx.Ampersands.Display );
if( treeNode.ChildNodes.Count > 0 )
{
DrawGlyph( g, new Point( nodeRectangle.X + _leftSep, nodeRectangle.Y + (nodeRectangle.Height - ecSize.Height) / 2 ), treeNode.IsExpanded );
}
}
internal AnimatedVerticalPositioning( TreeNodeCollection nodes, IRenderer renderer, ITreeInfo treeInfo, ITreeEvents treeEvents )
: base(nodes, renderer, treeInfo, treeEvents)
{
_from = new StaticVerticalPositioning( nodes, renderer, treeInfo, treeEvents );
_to = new StaticVerticalPositioning( nodes, renderer, treeInfo, treeEvents );
}
public ITreeInfo GetFromTree(string prompt, ITreeInfo options)
{
throw new NotImplementedException();
}